Tool for testing vibration of battery system parts

Abstract

The utility model belongs to the technical field of power battery part test equipment, and discloses a test tool for vibration of battery system parts. The testing tool comprises a base table, a pressing piece, a first limiting assembly and a second limiting assembly. Wherein the base station is used for bearing a to-be-tested piece; the pressing piece and the base table are arranged in a spaced mode in the first direction. The first limiting assembly comprises two first limiting pieces, and the two first limiting pieces are oppositely arranged on the base table in the second direction; the first limiting assembly comprises two first limiting parts, the second limiting assembly comprises two second limiting parts, the two second limiting parts are oppositely arranged on the base table in the third direction, any one of the first limiting assembly and the second limiting assembly is detachably connected to the base table, and the two first limiting parts and the two second limiting parts are detachably connected to form a containing space with an opening in the first direction; and the pressing piece can be arranged at the opening of the accommodating space in a covering manner. The test tool can perform vibration test on each part, is high in compatibility, and reduces the test cost.

Description

Technical Field

[0001] The utility model relates to the technical field of power battery component testing equipment, in particular to a testing tool for vibration of battery system components. Background Art

[0002] With the gradual development of new energy vehicles, the safety and capacity of power batteries have attracted much attention from the public and have become one of the important factors in the development of power batteries. At present, in order to improve the energy density of power batteries while taking into account the mechanical strength, impact resistance and vibration resistance of power batteries, various types of glues such as structural glues and thermal conductive gels are used in battery packs to replace bolts and other structural parts. Various types of glues with different raw materials and different foaming ratios are also used to increase the buffering force between battery cells, and aerogels are also used to slow down the spread of heat. Therefore, the internal battery cells, glues, and foams of the battery pack account for a large proportion, which has a greater impact on the mode of the battery system.

[0003] During the development of the battery pack, the modes and other conditions of the battery pack under various circumstances are generally simulated to simulate whether the modal requirements are met under the use of the battery pack as much as possible. In the prior art, vibration modal simulation is often used for the battery pack and subsequent vibration tests are carried out to make the battery pack simulate the actual use state. However, there are no specific parameters for the modal parameters of the battery cells, foams, glue and other materials in the battery pack. Therefore, the accuracy of the parameters in the simulation process is poor, resulting in poor accuracy of the simulation results. Therefore, it is necessary to conduct actual vibration tests on materials such as battery cells, foams, and glues to obtain accurate parameters; however, due to the different sizes and shapes of the component parameters, especially the difference between the solid shapes of battery cells and foams and the liquid shapes of glues that have not been fixed in the early stage, multiple test fixtures are required for testing, which has high testing costs, complicated testing processes, and cumbersome time.

[0004] Therefore, there is an urgent need for a test fixture for vibration of battery system components to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a test fixture for the vibration of battery system components, which can perform vibration tests on a battery pack and even on individual components in the battery pack, has high compatibility, reduces the number of test fixtures, and reduces test costs.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Test fixtures for vibration testing of battery system components, including:

[0008] A base, used to carry the test piece;

[0009] A pressing member is spaced apart from the base along the first direction;

[0010] A first limiting assembly includes two first limiting members, and the two first limiting members are arranged on the base relatively along the second direction;

[0011] The second limiting assembly comprises two second limiting members, the two second limiting members are arranged on the base relatively along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other;

[0012] Any one of the above-mentioned first limiting assembly and the above-mentioned second limiting assembly can be detachably connected to the above-mentioned base, and the two above-mentioned first limiting members and the two above-mentioned second limiting members can be detachably connected to form a accommodating space opening along the first direction with the above-mentioned base, the above-mentioned test piece is arranged in the above-mentioned accommodating space, and the above-mentioned clamping member can cover the opening of the above-mentioned accommodating space.

[0013] Optionally, a pressing block is detachably connected to a side of the pressing member facing the base, and the pressing block can be inserted into an opening of the accommodating space to press the test piece into the accommodating space.

[0014] Optionally, the test fixture further includes a plurality of first adjustment components, one end of the first adjustment component is connected to the base, and the other end is connected to the clamping member, and the length of the first adjustment component along the first direction is adjustable to adjust the distance between the clamping member and the base along the first direction.

[0015] Optionally, the test fixture further comprises a plurality of bushings, and at least one of the bushings is sleeved on the outer periphery of a portion of the first adjustment assembly located between the clamping member and the base.

[0016] Optionally, the first limiting member includes a vertically connected blocking portion and a fixing portion, the blocking portion is used to limit the test piece, and the fixing portion is fixedly connected to the base.

[0017] Optionally, any one of the first limit member and the second limit member is provided with a first sliding member extending along the first direction, and the other is provided with a second sliding member extending along the first direction, and the second sliding member is slidably connected to the first sliding member so that the first limit member and the second limit member are detachably connected.

[0018] Optionally, the test fixture further comprises a second adjustment component, and the second adjustment component is arranged on the first limiter, so that the distance of the first limiter along the second direction is adjustable; and / or,

[0019] The test fixture further comprises a third adjustment component, and the third adjustment component is arranged on the second limit member so that the distance of the second limit member along the third direction is adjustable.

[0020] Optionally, the second adjustment component includes a first sliding member and a second sliding member, one of the first limiting member and the second limiting member is provided with a first sliding member, and the other is provided with a second sliding member, and the first sliding member and the second sliding member are slidably connected; the first sliding member or the second sliding member located on the second limiting member is provided with a plurality of intervals along the second direction, so that the first limiting member can be adjustably connected to the second limiting member along the second direction; and / or, the third adjustment component includes a first fixing member and a first waist-shaped hole, the first waist-shaped hole is extended along the third direction, the first waist-shaped hole is opened on the second limiting member or the base, the first fixing member passes through the first waist-shaped hole and fixes the base and the second limiting member in connection; or,

[0021] The above-mentioned second adjustment component includes a second fixing part and a second waist-shaped hole, the above-mentioned second waist-shaped hole is extended along the above-mentioned second direction, the above-mentioned second waist-shaped hole is opened on the above-mentioned first limiting part or the above-mentioned base, the above-mentioned second fixing part passes through the above-mentioned second waist-shaped hole and fixes the above-mentioned base and the above-mentioned first limiting part to be connected; and / or the above-mentioned third adjustment component includes a first sliding part and a second sliding part, one of the above-mentioned first limiting part and the above-mentioned second limiting part is provided with a first sliding part, and the other is provided with a second sliding part, and the above-mentioned first sliding part and the above-mentioned second sliding part are slidably connected; the above-mentioned first sliding part or the above-mentioned second sliding part located on the above-mentioned first limiting part is provided with a plurality of intervals along the above-mentioned third direction, so that the above-mentioned second limiting part can be adjustably connected to the above-mentioned first limiting part along the above-mentioned third direction.

[0022] Optionally, a plurality of mounting bases are arranged on one side of the base away from the pressing member, and the mounting bases are used to mount the base on the vibration platform at intervals.

[0023] Optionally, a first buffer is provided on a side of one of the first limiting members facing the other first limiting member; and / or,

[0024] A second buffer is provided on a side of one of the second limiting members facing the other second limiting member; and / or,

[0025] A third buffer is provided on the side of the pressing member facing the base; and / or,

[0026] A fourth buffer member is provided on one side of the base facing the pressing member.

[0027] Beneficial effects of the utility model:

[0028] The utility model provides a test fixture for vibration of battery system components, which forms a receiving space opened along the first direction through a base, two first limiting members and two second limiting members, so that the test fixture can also install a fluid-like test piece similar to glue, that is, the fluid-like test piece is placed in the receiving space to prevent it from flowing out, and after it is fixed or formed into a required state, the test piece is limited by a clamping member, and the test fixture is installed on a vibration platform for vibration testing to obtain the test data of each of the test pieces. When the test fixture is used to test and install other solid-like test pieces, if the test piece is designed with a specific structure in the second direction or the third direction to avoid contact with the test fixture to cause safety problems (for example, a battery cell with a tab extending from one side), the first limiting member or the second limiting member can be disassembled accordingly, so that the test piece is not limited in the second direction or the third direction to avoid safety problems; after the test piece is installed, the test fixture is installed on the vibration platform for vibration testing to obtain the test data of each of the test pieces. The test fixture can be used for vibration testing and installation of both fluid and solid test pieces, which improves the compatibility of the test fixture. There is no need to set up multiple test fixtures for testing component structures of various forms, which reduces the number of test fixtures and reduces the testing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an axonometric exploded view of the test fixture provided in the first embodiment of the utility model having a second limiter;

[0030] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0031] Figure 3 It is an axonometric exploded view of the test fixture provided by the first embodiment of the utility model from another perspective with a second limiter;

[0032] Figure 4 This is an axonometric exploded view of the test tool provided in the first embodiment of the utility model for disassembling the second limiter;

[0033] Figure 5 It is an axonometric diagram of the test tool provided in the first embodiment of the utility model for disassembling the second limiter;

[0034] Figure 6 This is an axonometric exploded view of the test tool disassembling the second limiter from another perspective provided in the first embodiment of the utility model;

[0035] Figure 7 It is an axonometric view of the second position-limiting member provided in the second embodiment of the present utility model;

[0036] Figure 8It is a cross-sectional view of the bushing provided in the second embodiment of the utility model.

[0037] In the figure:

[0038] 10. Abutment; 11. Second waist hole;

[0039] 20. Clamping piece; 21. Clamping block;

[0040] 30. first position-limiting member; 31. blocking member; 311. first sliding member; 32. fixing member; 321. through hole;

[0041] 40. Second limiting member; 401. Limiting structure; 41. Second sliding member;

[0042] 50, bushing; 51, sleeve structure; 511, protrusion; 512, groove;

[0043] 60. Install the base;

[0044] 200. Component to be tested. 300. Vibration platform. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0046] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0049] Embodiment 1

[0050] This embodiment provides a test fixture for vibration of battery system components, which is applied to vibration testing of battery system components to test the vibration parameters of each component in the battery system, thereby facilitating vibration modal simulation of the entire battery pack. It has high compatibility, reduces the number of test fixtures, and reduces testing costs.

[0051] It should be noted that the first direction in this embodiment is Figure 1 The Z direction in the second direction is Figure 1 The Y direction in the third direction is Figure 1 The X direction, the Y direction and the Z direction are perpendicular to each other. In addition, the test piece 200 in this embodiment includes a flow-like test structure and a solid test structure.

[0052] Vibration parameters refer to the main frequency parameters of the tested component in the modal test. The elastic modulus of the component can be inferred from the main frequency parameters. The elastic modulus of the tested component can be imported into the corresponding simulation test to optimize the simulation results.

[0053] Please refer to Figure 1 and Figure 2 Specifically, the test fixture includes a base 10, a clamping member 20, a first limit assembly and a second limit assembly. The base 10 is used to carry the test piece 200; the clamping member 20 is spaced apart from the base 10 along the first direction; the first limit assembly includes two first limit members 30, and the two first limit members 30 are relatively arranged on the base 10 along the second direction; the second limit assembly includes two second limit members 40, and the two second limit members 40 are relatively arranged on the base 10 along the third direction. Any one of the first limit assembly and the second limit assembly can be detachably connected to the base 10, and the two first limit members 30 and the two second limit members 40 can be detachably connected and form a storage space opened along the first direction with the base 10, the test piece 200 is arranged in the storage space, and the clamping member 20 can cover the opening of the storage space.

[0054] Please refer to Figures 1 to 3The test fixture in this embodiment forms a receiving space opened along the first direction through the base 10, two first limiting members 30 and two second limiting members 40, so that the test fixture can also install the test piece 200 in a flowing state similar to glue, that is, the flowing test piece 200 is placed in the receiving space to prevent it from flowing out, and after it is fixed or formed into the required state, the test piece 200 is limited by the clamping member 20, and the test fixture is installed on the vibration platform 300 for vibration testing to obtain the test data of each test piece 200. Please refer to Figures 4 to 6 , and when the test fixture is used to test and install other solid-state test pieces 200, the second limiter 40 or the first limiter 30 can also be disassembled, so that the test piece 200 is not limited in the third direction or the second direction, and the installation space of the test piece 200 in the third direction or the second direction is increased, effectively avoiding safety problems; after the test piece 200 is installed, the test fixture is installed on the vibration platform 300 for vibration testing to obtain the test data of each test piece 200. The test fixture can perform vibration testing and installation on both fluid and solid test pieces 200, which improves the compatibility of the test fixture, and does not need to set up multiple test fixtures for various forms of component structures for testing, reducing the number of test fixtures and reducing testing costs.

[0055] Please refer to Figure 1 , Figure 3 , Figure 4 and Figure 6 In some embodiments, a plurality of mounting bases 60 are evenly arranged on one side of the base 10 away from the pressing member 20, and the mounting bases 60 are used to install the base 10 on the vibration platform 300 at intervals. During installation, the mounting bases 60 can be first installed on the vibration platform 300, and then the base 10 and the mounting bases 60 can be installed to achieve the installation between the base 10 and the vibration platform 300. At the same time, the base 10 and the vibration platform 300 are spaced apart, so that when the test fixture is tested, the problem of abnormal excitation caused by the base 10 hitting the vibration platform 300 is effectively avoided, thereby improving the accuracy of the test results of the test piece 200 after the vibration test using the test fixture.

[0056] Specifically, the mounting base 60 is in a T-shaped structure, so that the mounting base 60 can be connected to the base 10 and also has a space for mounting the vibration platform 300, so that the base 10 and the vibration platform 300 can be mounted more stably.

[0057] Optionally, threaded connections are used between the mounting base 60 and the base 10, and between the mounting base 60 and the vibration platform 300, so that the connection is highly stable and easy to disassemble.

[0058] Optionally, a plurality of mounting bases 60 are provided to ensure a stable installation of the base 10 and ensure a stable connection between the two.

[0059] In some embodiments, the clamping member 20 and the base 10 are fixed at intervals by means of a threaded connection. During specific installation, the test piece 200 is first placed in the accommodating space or between the two first limiting members 30, and then the clamping member 20 is pressed onto the test piece 200 and threadedly connected to the base 10, thereby achieving the interval setting and connection between the two, and thereby limiting the test piece 200 in the first direction, avoiding the problem of inaccurate test results caused by position shifting of the test piece 200 during vibration, thereby improving the reliability of the test tooling.

[0060] Optionally, a supporting structure is further provided between the pressing member 20 and the base 10 to fill part of the gap between the two, so that the connection between the two is more stable.

[0061] Please refer to Figure 3 and Figure 6 In some embodiments, a pressing block 21 is detachably connected to the side of the pressing member 20 facing the base 10, and the pressing block 21 can be inserted into the opening of the accommodation space to press the test piece 200 into the accommodation space. The setting of the pressing block 21 applies pressure to the test piece 200 along the first direction, thereby limiting the position of the test piece 200 in the first direction to avoid the problem of position movement during vibration. In addition, such a setting also weakens the function of the pressing member 20 itself, so that the pressing member 20 itself can be directly made thin, and the pressing block 21 can be made thick to ensure the pressure.

[0062] Optionally, the thickness of the pressing block 21 can be selected according to actual needs. Generally, the pressing block 21 is thicker to ensure the pressing effect on the test piece 200.

[0063] Please refer to Figure 1 , Figure 2 and Figure 4 In some embodiments, the first limiting member 30 includes a vertically connected resisting portion 31 and a fixing portion 32, the resisting portion 31 is used to limit the workpiece to be tested 200, and the fixing portion 32 is fixedly connected to the base 10. This configuration enables the first limiting member 30 to effectively limit and resist the workpiece to be tested 200, and also realizes the connection between the first limiting member 30 and the base 10.

[0064] Optionally, the fixing portion 32 is disposed on a side of the blocking portion 31 away from the accommodating space, so that the fixing portion 32 does not affect the installation of the device under test 200 .

[0065] In some embodiments, any one of the first limit member 30 and the second limit member 40 is provided with a first sliding member 311 extending along the first direction, and the other is provided with a second sliding member 41 extending along the first direction. The second sliding member 41 is slidably connected to the first sliding member 311 to cooperate and connect the first limit member 30 and the second limit member 40, thereby realizing the connection between the first limit member 30 and the second limit member 40, so that the base 10, the two first limit members 30 and the two second limit members 40 are enclosed to form a relatively closed accommodating space.

[0066] Optionally, any one of the first sliding member 311 and the second sliding member 41 is a slide groove, and the other is a slideway, and the slide groove and the slideway are slidably connected. Exemplarily, the detachable one of the first sliding member 311 and the second sliding member 41 is the slideway, and the one that does not need to be detached is the slide groove, so that the containment space is better sealed and the flowing test piece 200 is prevented from flowing out.

[0067] In order to improve the protection of the test piece 200, in some embodiments, a first buffer is provided on the side of a first stopper 30 facing another first stopper 30; and / or a second buffer is provided on the side of a second stopper 40 facing another second stopper 40; and / or a third buffer is provided on the side of the pressing member 20 facing the base 10; and / or a fourth buffer is provided on the side of the base 10 facing the pressing member 20. Corresponding buffers are provided on the contact surface of the test piece 200 to prevent the test piece 200 from directly contacting the base 10, the pressing member 20, the first stopper 30 and / or the second stopper 40, which may cause problems such as squeezing or scratching the test piece 200, thereby improving the protection of the test fixture on the test piece 200.

[0068] The above-mentioned test fixture can realize the installation and fixation of the test pieces 200 of different shapes, so as to meet the vibration test of the test pieces 200 of different shapes. However, it may not be possible to perform installation testing after the size of the parts changes. Therefore, in this embodiment, the distance between the clamping member 20 and the base 10 along the first direction is adjustable; and / or the distance between the two first limit members 30 along the second direction is adjustable; and / or the distance between the two second limit members 40 along the third direction is adjustable, so as to realize that the installation space of the test fixture can be adjusted in the first direction, the second direction and / or the third direction, so that the test fixture can meet the installation of various parts of different sizes and has higher compatibility.

[0069] It can be understood that the distance adjustment in the first direction, the second direction and / or the third direction can be achieved by using adjustable distance structures such as bolts and nuts, telescopic parts, etc., which are not specifically limited here.

[0070] In some optional embodiments, the test fixture also includes a plurality of first adjustment components, one end of the first adjustment component is connected to the base, and the other end is connected to the clamping member 20, and the length of the first adjustment component along the first direction is adjustable to adjust the distance between the clamping member 20 and the base 10 along the first direction.

[0071] Specifically, the first adjustment assembly includes a plurality of adjustment bolts and a plurality of adjustment nuts, which are evenly arranged in a one-to-one correspondence, and the adjustment bolts are passed through the clamping member 20 and the base 10 and are threadedly connected with the adjustment nuts. By screwing the adjustment nuts on the adjustment bolts, the distance between the clamping member 20 and the base 10 along the first direction is adjusted, thereby improving the compatibility of the size of the components in the first direction.

[0072] In some embodiments, the test tooling further includes a plurality of bushings 50, that is, the bushings 50 are used as supporting structures, and the first adjustment component is located between the clamping member 20 and the base 10 and is provided with at least one bushing 50 on the periphery thereof. During installation, the number and size of the bushings 50 can be adaptively selected according to the distance between the clamping member 20 and the base 10 in the first direction to support the clamping member 20.

[0073] Specifically, the bushing 50 is provided in various sizes. After determining the distance between the clamping member 20 and the base 10 in the first direction, a bushing 50 of a corresponding size can be selected to ensure the effectiveness of the support of the bushing 50 on the clamping member 20 when the clamping member 20 and the base 10 are adjusted in the first direction.

[0074] In some embodiments, the test tooling further includes a second adjustment component, which is disposed on the first limit member 30 so that the distance of the first limit member 30 along the second direction is adjustable; and / or, the test tooling further includes a third adjustment component, which is disposed on the second limit member 40 so that the distance of the second limit member 40 along the third direction is adjustable.

[0075] In some specific embodiments, the second adjustment component includes a first sliding member 311 and a second sliding member 41, one of the first limit member 30 and the second limit member 40 is provided with a first sliding member 311, and the other is provided with a second sliding member 41, and the first sliding member 311 and the second sliding member 41 are slidably connected; a plurality of first sliding members 311 or second sliding members 41 located on the second limit member 40 are spaced apart along the second direction, so that the first limit member 30 can be adjustably connected to the second limit member 40 along the second direction; and the accommodating space is still relatively closed, thereby effectively avoiding the problem of the flowing test piece 200 flowing out of the accommodating space.

[0076] And / or, the third adjustment component includes a first fixing member and a first waist-shaped hole, the first waist-shaped hole extends along the third direction, the first waist-shaped hole is opened on the second limiting member 40 or the base 10, the first fixing member passes through the first waist-shaped hole and fixes the base 10 and the second limiting member 40 to be connected; when in use, the position of the first fixing member along the third direction in the first waist-shaped hole can be adjusted, and then the first fixing member can be tightened and fixed, so that the distance of the second limiting member 40 along the third direction can be adjusted.

[0077] Please refer to Figure 1 and Figure 4 In some specific embodiments, the second adjustment component includes a second fixing member and a second waist-shaped hole 11, the second waist-shaped hole 11 is extended along the second direction, the second waist-shaped hole 11 is opened on the first limiting member 30 or the base 10, the second fixing member passes through the second waist-shaped hole 11 and fixes the base 10 and the first limiting member 30 to be connected; when in use, the second fixing member can be adjusted in the second direction in the second waist-shaped hole 11, and then the second fixing member can be tightened and fixed, so that the distance of the first limiting member 30 along the third direction can be adjusted. And / or, the third adjustment component includes a first sliding member 311 and a second sliding member 41, one of the first limit member 30 and the second limit member 40 is provided with a first sliding member 311, and the other is provided with a second sliding member 41, and the first sliding member 311 and the second sliding member 41 are slidably connected; a plurality of first sliding members 311 or second sliding members 41 located on the first limit member 30 are arranged at intervals along the third direction, so that the second limit member 40 can be adjustably connected to the first limit member 30 along the third direction, and the accommodating space is still relatively closed, thereby effectively avoiding the problem of the flowing test piece 200 flowing out of the accommodating space.

[0078] Optionally, the first fixing member or the second fixing member is a fixing bolt and a fixing nut, the first waist-shaped hole or the second waist-shaped hole 11 is set on the base 10, the first limiting member 30 or the second limiting member 40 is provided with a through hole 321, the fixing bolt is passed through the corresponding first waist-shaped hole or the second waist-shaped hole 11, and passes through the through hole 321 and is threadedly connected with the fixing nut. When in use, loosen the fixing bolt and the fixing nut so that the first limiting member 30 and the base 10 can be adjusted along the second direction, or the second limiting member 40 and the base 10 can be adjusted along the second direction, and then tighten the fixing bolt and the fixing nut after reaching the specified position.

[0079] Optionally, the one of the first limit assembly and the second limit assembly that needs to be disassembled can be set to multiple groups, each group has a different size, and the first limit assembly or the second limit assembly can be replaced according to specific needs to meet the distance adjustment of the one of the first limit assembly and the second limit assembly that does not need to be disassembled.

[0080] Embodiment 2

[0081] This embodiment provides a test fixture for vibration of battery system components. The difference between this embodiment and the first embodiment is that the size adjustment structure of the one that needs to be disassembled between the first limit assembly and the second limit assembly is different, and the size adjustment structure of the bushing 50 is different.

[0082] The following is a specific description of the second limit assembly as a structure that needs to be disassembled. When the first limit assembly needs to be disassembled, the following structure can be referred to.

[0083] Please refer to Figure 7 In this embodiment, the second limiting member 40 includes a plurality of limiting structures 401, and one of the two ends of the limiting structure 401 along the second direction is provided with a second sliding member 41, and the other is provided with a first sliding member 311 to achieve the connection and installation between the limiting structures 401. According to the distance between the two first limiting members 30, a plurality of limiting structures 401 can be installed to make the test fixture more flexible in size changes.

[0084] Optionally, some of the plurality of limiting structures 401 have different sizes in the second direction, so as to further improve the compatibility and flexibility of the size adjustment of the second limiting member 40 in the second direction.

[0085] Please refer to Figure 8 In some embodiments, the bushing 50 includes a plurality of socket structures 51, and each socket structure 51 has a protrusion 511 at one of its two ends along the first direction, and a groove 512 at the other end. The protrusion 511 of one socket structure 51 is matched with the groove 512 of another socket structure 51 to achieve size adjustment of the bushing 50 in the first direction.

[0086] Optionally, portions of the plurality of sleeve structures 51 have different sizes in the first direction, so as to further improve the compatibility and flexibility of the size adjustment of the bushing 50 in the first direction.

[0087] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Test tool, characterized in that: Used for vibration testing of battery system components, the test fixture includes: A base (10) for carrying a test piece (200); A pressing member (20) is arranged spaced apart from the base (10) along a first direction; A first limiting assembly, comprising two first limiting members (30), wherein the two first limiting members (30) are arranged on the base (10) opposite to each other along a second direction; A second limiting assembly, comprising two second limiting members (40), wherein the two second limiting members (40) are arranged on the base (10) relatively along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other; Any one of the first limiting assembly and the second limiting assembly is detachably connected to the base (10), and the two first limiting members (30) and the two second limiting members (40) are detachably connected and form a receiving space with the base (10) that is open in a first direction, the test piece (200) is arranged in the receiving space, and the clamping member (20) can cover the opening of the receiving space.

2. The test tool according to claim 1, characterized in that: A pressing block (21) is detachably connected to one side of the pressing member (20) facing the base (10), and the pressing block (21) can be inserted into the opening of the accommodating space to press the test piece (200) into the accommodating space.

3. The test tool according to claim 1, characterized in that: The test fixture further comprises a plurality of first adjustment components, one end of the first adjustment component is connected to the base (10), and the other end is connected to the clamping member (20), and the length of the first adjustment component along the first direction is adjustable to adjust the distance between the clamping member (20) and the base (10) along the first direction.

4. The test fixture according to claim 3, characterized in that: The test fixture further comprises a plurality of bushings (50), and at least one bushing (50) is sleeved on the outer periphery of a portion of the first adjustment component located between the pressing member (20) and the base platform (10).

5. The test tool according to claim 1, characterized in that: The first limiting member (30) comprises a vertically connected resisting portion (31) and a fixing portion (32), wherein the resisting portion (31) is used to limit the position of the test piece (200), and the fixing portion (32) is fixedly connected to the base (10).

6. The test tool according to claim 1, characterized in that: Either one of the first limiting member (30) and the second limiting member (40) is provided with a first sliding member (311) extending along the first direction, and the other is provided with a second sliding member (41) extending along the first direction, and the second sliding member (41) is slidably connected to the first sliding member (311), so that the first limiting member (30) and the second limiting member (40) are detachably connected.

7. The test tool according to claim 1, characterized in that: The testing tool further comprises a second adjustment component, wherein the second adjustment component is arranged on the first limiting member (30) so that the distance of the first limiting member (30) along the second direction is adjustable; and / or, The testing fixture further comprises a third adjustment component, wherein the third adjustment component is arranged on the second limiting member (40) so that the distance of the second limiting member (40) along the third direction is adjustable.

8. The test tool according to claim 7, characterized in that: The second adjustment component comprises a first sliding member (311) and a second sliding member (41); one of the first limiting member (30) and the second limiting member (40) is provided with the first sliding member (311), and the other is provided with the second sliding member (41); the first sliding member (311) and the second sliding member (41) are slidably connected; a plurality of the first sliding members (311) or the second sliding members (41) located on the second limiting member (40) are arranged at intervals along the second direction, so that the first limiting member (30) can be connected to the second limiting member (40) in an adjustable position along the second direction; and / or, the third adjustment component comprises a first fixing member and a first waist-shaped hole; the first waist-shaped hole is extended along the third direction; the first waist-shaped hole is opened on the second limiting member (40) or the base (10); the first fixing member passes through the first waist-shaped hole and fixes the base (10) and the second limiting member (40) in a fixed connection; or, The second adjustment component comprises a second fixing member and a second waist-shaped hole (11), the second waist-shaped hole (11) is extended along the second direction, the second waist-shaped hole (11) is opened on the first limiting member (30) or the base (10), the second fixing member passes through the second waist-shaped hole (11) and fixes the base (10) and the first limiting member (30) in connection; and / or the third adjustment component comprises a first sliding member (311) and a second sliding member (41), one of the first limiting member (30) and the second limiting member (40) is provided with a first sliding member (311), and the other is provided with a second sliding member (41), the first sliding member (311) and the second sliding member (41) are slidably connected; a plurality of the first sliding members (311) or the second sliding members (41) located on the first limiting member (30) are arranged at intervals along the third direction, so that the second limiting member (40) is adjustably connected to the first limiting member (30) along the third direction.

9. The test tool according to claim 1, characterized in that: A plurality of mounting bases (60) are evenly distributed on one side of the base (10) away from the pressing member (20), and the mounting bases (60) are used to mount the base (10) on the vibration platform (300) at intervals.

10. The test tool according to any one of claims 1 to 9, characterized in that: A first buffer is provided on a side of one of the first limiting members (30) facing another of the first limiting members (30); and / or, A second buffer is provided on a side of one of the second limiting members (40) facing the other second limiting member (40); and / or, A third buffer is provided on the side of the pressing member (20) facing the base (10); and / or, A fourth buffer member is provided on a side of the base (10) facing the pressing member (20).

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