Vibration testing tool and vibration testing device

Abstract

The utility model relates to the technical field of battery pack vibration testing, and discloses a vibration testing tool and a vibration testing device. The vibration test tool comprises a fixing plate, a locking assembly and two supporting seats, and a plurality of first mounting holes are formed in the fixing plate; the two supporting seats are oppositely arranged on the fixing plate at intervals in the first direction, the battery pack can be placed between the two supporting seats, hanging lugs of the battery pack are connected with the supporting seats, the supporting seats are provided with long holes extending in the first direction, the long holes can selectively directly face at least one first mounting hole, and the fasteners penetrate through the long holes and the first mounting holes; when the supporting seat moves to a preset position in the first direction, the locking assembly is configured to lock the supporting seat on the fixing plate so as to limit the supporting seat to move in the first direction. By arranging the locking assembly, the supporting seat can be locked on the fixing plate, and the supporting seat is limited to move in the first direction, so that the problem of sliding of the supporting seat in the vibration process is avoided, and stable operation of the vibration test process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack vibration testing, in particular to a vibration testing tool and a vibration testing device. Background Art

[0002] As one of the most important core components of electric vehicles, the battery pack needs to undergo various rigorous safety tests before leaving the factory to ensure the safety and reliability of the battery pack under complex operating conditions. This involves vibration testing, which simulates the various vibration environmental influences encountered by the battery pack during transportation, installation and use to determine whether the battery pack can withstand various environmental vibrations.

[0003] When conducting a vibration test, a vibration test fixture is usually used to clamp and fix the battery pack so that the battery pack can be vibration tested in a simulated vibration environment. However, for different car companies, the external dimensions of the on-board battery pack are different. In the prior art, in order to adapt to battery packs of different sizes, the vibration test fixture usually includes a fixing plate and a support base for connecting the battery pack. The support base is provided with a long hole, and a plurality of mounting holes are provided on the fixing plate. Battery packs of different sizes are adapted by moving the position of the support base on the fixing plate, and then the long holes and the mounting holes are connected and fixed by fasteners. However, in a vibration environment, the connection of the long holes is not stable, and there is a risk of the support base slipping, which makes the vibration test unable to proceed normally.

[0004] Therefore, there is an urgent need to provide a vibration testing tool and a vibration testing device to solve the above problems. Utility Model Content

[0005] One purpose of the utility model is to provide a vibration test fixture, which can lock a support base on a fixed plate, so as to avoid the problem of the support base slipping during the vibration process.

[0006] Another object of the present utility model is to provide a vibration testing device, which can ensure the stability of the vibration testing process by setting the above-mentioned vibration testing tooling.

[0007] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0008] A vibration test tool, comprising:

[0009] A fixing plate, on which a plurality of first mounting holes are formed;

[0010] Two support seats are arranged on the fixing plate opposite to each other along a first direction and at intervals, a battery pack can be placed between the two support seats, and a hanging ear of the battery pack is connected to the support seats, the support seats are provided with a long hole extending along the first direction, the long hole can selectively face at least one of the first mounting holes, and a fastener passes through the long hole and the first mounting hole;

[0011] The locking assembly is configured to lock the support base on the fixing plate when the support base moves to a preset position along the first direction, so as to limit the movement of the support base along the first direction.

[0012] As an optional solution, each of the support seats is equipped with a plurality of the locking assemblies, and the plurality of the locking assemblies are arranged on the fixing plate at intervals along a second direction, and the second direction is perpendicular to the first direction;

[0013] The plurality of locking assemblies are divided into a first locking assembly and a second locking assembly. The first locking assembly is located at two ends of the support base along the second direction, and the second locking assembly is located in the middle of the support base.

[0014] As an optional solution, the first locking assembly includes:

[0015] Two first fixing seats are spaced apart along the first direction and are detachably arranged on the fixing plate, and the two first fixing seats are arranged on both sides of the vertical plate of the supporting seat;

[0016] A first screw rod, passing through the vertical plate and the two first fixing seats along the first direction;

[0017] a first fixing nut, threadedly connected to the first screw rod, and the first fixing nut is used to lock the first screw rod on the two first fixing seats;

[0018] A first locking nut, wherein the first screw rod is located on both sides of the vertical plate and is threadedly connected with the first locking nuts, and the two first locking nuts are used to lock the position of the support seat.

[0019] As an optional solution, the first locking assembly also includes two first clamping plates, which are sleeved on the first screw rod and respectively located on both sides of the vertical plate, and each first clamping plate is respectively located between the vertical plate and the corresponding first locking nut.

[0020] As an optional solution, the second locking assembly includes:

[0021] A second fixing seat, detachably arranged on the fixing plate, and the second fixing seat is located on a side of one of the supporting seats away from the other supporting seat;

[0022] A long bolt, wherein the second screw rod of the long bolt passes through the vertical plate of the support seat and the second fixing seat in sequence along the first direction;

[0023] A second fixing nut, wherein the second screw rod is threadedly connected to positions on both sides of the second fixing seat;

[0024] A second locking nut is threadedly connected to the second screw rod, and the second locking nut is located between the vertical plate and the second fixing nut close to the vertical plate.

[0025] As an optional solution, the second locking assembly also includes two second clamping plates, which are sleeved on the second screw rod, one of the second clamping plates is located between the vertical plate and the head of the long bolt, and the other second clamping plates is located between the vertical plate and the second locking nut.

[0026] As an optional solution, the support base includes a base and a connecting plate detachably connected to the base, the base is detachably arranged on the fixing plate, the long hole is opened on the bottom plate of the base, and the connecting plate is connected to the hanging ear of the battery pack.

[0027] As an optional solution, a plurality of installation stations are provided on the base, and the connecting plate can be selectively fixed to one of the plurality of installation stations to adjust the relative position of the connecting plate and the base.

[0028] As an optional solution, in the first direction, the distance between two adjacent first mounting holes is the same, and the distance between two adjacent first mounting holes is defined as d, and the length of the long hole is greater than 2d.

[0029] A vibration testing device comprises a vibration testing machine and the above-mentioned vibration testing tool, wherein the vibration testing tool is placed on the table of the vibration testing machine.

[0030] The beneficial effects of the utility model are:

[0031] The vibration test fixture provided by the utility model can move two support seats along the first direction by setting a long hole on the support seat, so as to adjust the installation position of the support seat on the fixed plate to adapt to the installation of battery packs of different sizes, and the operation is convenient, so that the universality of the fixture is better. When the support seat is moved to the preset position, the long hole can be directly opposite to at least one first installation hole on the fixed plate, and then the long hole and the first installation hole are penetrated by fasteners to connect the support seat to the fixed plate, and finally the support seat is locked to the fixed plate by the locking assembly to limit the movement of the support seat along the first direction, thereby avoiding the problem of the support seat slipping during the vibration process.

[0032] The vibration testing device provided by the utility model can ensure the stability of the vibration testing process by arranging the above-mentioned vibration testing tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to explain the embodiments of the utility model or the technical solutions in the prior art more clearly and easily, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. The drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a structural schematic diagram of the vibration test tooling provided by an embodiment of the utility model;

[0035] Figure 2 is a cross-sectional view of a vibration test tool provided by an embodiment of the utility model;

[0036] Figure 3 It is a partial structural schematic diagram of the vibration test tooling provided by the embodiment of the utility model;

[0037] Figure 4 It is a partial isometric cross-sectional view of the vibration test tooling provided by the embodiment of the utility model;

[0038] Figure 5 yes Figure 4 Front view of the structure along the Y axis.

[0039] In the figure:

[0040] 10. fixing plate; 11. first mounting hole; 12. second mounting hole;

[0041] 20, support seat; 21, base; 211, top plate; 2111, first fixing hole; 212, bottom plate; 2121, long hole; 213, vertical plate; 214, wing plate; 22, connecting plate; 221, second fixing hole;

[0042] 30. Locking assembly; 31. First locking assembly; 311. First fixing seat; 3111. L-shaped plate; 3112. Reinforcing rib plate; 3113. Third mounting hole; 312. First screw rod; 313. First fixing nut; 314. First locking nut; 315. First clamping plate; 32. Second locking assembly; 321. Second fixing seat; 322. Long bolt; 3221. Second screw rod; 3222. Head; 323. Second fixing nut; 324. Second locking nut; 325. Second clamping plate. DETAILED DESCRIPTION

[0043] 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.

[0044] 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection 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.

[0045] 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.

[0046] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, 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.

[0047] This embodiment provides a vibration test fixture for clamping and fixing a battery pack so as to facilitate vibration testing of the battery pack in a simulated vibration environment.

[0048] Specifically, Figure 1 As shown, the vibration test fixture includes a fixing plate 10, a locking assembly 30 and two support seats 20, and a plurality of first mounting holes 11 are opened on the fixing plate 10; the support seat 20 extends along the second direction, and the two support seats 20 are opposite to each other and spaced apart on the fixing plate 10 along the first direction, and a mounting area for a battery pack is formed between the two support seats 20, and the battery pack can be placed between the two support seats 20, and the hanging ears of the battery pack are detachably connected to the support seats 20 by bolts, and the support seats 20 are provided with a long hole 2121 extending along the first direction, and the long hole 2121 is preferably a waist-shaped hole, and the long hole 2121 can selectively face at least one first mounting hole 11, and a fastener passes through the long hole 2121 and the first mounting hole 11, and the fastener is a bolt and nut combination; when the support seat 20 moves to a preset position along the first direction, the locking assembly 30 is configured to lock the support seat 20 on the fixing plate 10 to limit the movement of the support seat 20 along the first direction. For ease of understanding, the first direction is defined as the X-axis direction, and the second direction is defined as the Y-axis direction.

[0049] In order to adapt to battery packs of different sizes, a long hole 2121 is provided on the support seat 20. The installation position of the support seat 20 on the fixed plate 10 can be adjusted by moving the two support seats 20 along the first direction, thereby adjusting the spacing between the two support seats 20 to adapt to the installation of battery packs of different sizes. The operation is convenient, making the tooling more versatile. When the support seat 20 is moved to the preset position, the long hole 2121 can be directly opposite to at least one first mounting hole 11 on the fixed plate 10, and then the first mounting hole 11 and the long hole 2121 are sequentially penetrated by fasteners to connect the support seat 20 to the fixed plate 10. Finally, the support seat 20 is locked to the fixed plate 10 by the locking assembly 30 to limit the movement of the support seat 20 along the first direction, thereby avoiding the problem of the support seat 20 slipping during the vibration process.

[0050] When the vibration test fixture is used, the spacing between the two support seats 20 is adjusted along the first direction according to the specifications of the battery pack to be tested, and then the battery pack is placed between the two support seats 20, and the hanging ears of the battery pack are fixed on the support seats 20, so that the battery pack remains suspended in the air to simulate the actual installation state of the battery pack on the electric vehicle. After the fixture and the battery pack are assembled, the battery pack to be tested and the fixture are transferred as a whole to the table of the vibration tester, and the fixing plate 10 is fixedly connected to the table for vibration testing.

[0051] Specifically, Figure 1As shown, the fixing plate 10 is provided with two types of holes, namely, the first mounting hole 11 and the second mounting hole 12. The aperture of the second mounting hole 12 is larger than that of the first mounting hole 11. The second mounting hole 12 is used to be locked with the table of the vibration tester, and the first mounting hole 11 is used to be locked with the long hole 2121 of the support seat 20 and the hole position on the locking assembly 30. Among them, the multiple first mounting holes 11 on the fixing plate 10 are regularly arranged in a rectangular array, and the bottom of the support seat 20 is provided with a plurality of long holes 2121, and the multiple long holes 2121 are arranged at intervals along the second direction. Each long hole 2121 extends along the first direction and corresponds to a row of first mounting holes 11, respectively, so as to ensure the stability of the connection between the support seat 20 and the fixing plate 10.

[0052] refer to Figure 1 Preferably, the fixing plate 10 is provided in two pieces, and the two fixing plates 10 are arranged at intervals along the first direction, and a support seat 20 is provided on each fixing plate 10. Compared with setting a whole fixing plate 10, this setting can reduce the requirements for the machining accuracy of the size of the fixing plate 10 and the machining accuracy of the hole position, thereby facilitating machining and saving costs.

[0053] Preferably, if Figure 2 As shown, in the first direction, the distance between two adjacent first mounting holes 11 is the same, and the distance between two adjacent first mounting holes 11 is defined as d, and the length of the long hole 2121 is slightly greater than 2d. In this way, no matter where the support base 20 moves along the first direction, the long hole 2121 can at least face two first mounting holes 11, and at most face three first mounting holes 11, thereby achieving a stable connection between the support base 20 and the fixing plate 10.

[0054] Furthermore, if Figure 1 As shown, the support seat 20 includes a base 21 and a connecting plate 22 detachably connected to the base 21. The base 21 is detachably connected to the first mounting hole 11 of the fixing plate 10. The long hole 2121 is opened on the bottom plate 212 of the base 21. Part of the connecting plate 22 is protruding from the base 21 along the first direction. The protruding part of the connecting plate 22 is connected to the hanging ear of the battery pack. When installed, the hanging ear is located on the lower side of the connecting plate 22 and is detachably connected by a combination of bolts and nuts. The base 21 drives the connecting plate 22 to move along the first direction while sliding along the first direction, thereby adjusting the spacing between the two connecting plates 22, and then adapting to the installation of battery packs of different specifications and sizes. In view of the different positions of the hanging ears of different battery packs, they can be adapted by quickly punching and expanding the holes on the connecting plate 22. For battery packs with large length and width, two or more connecting plates 22 can be assembled on each base 21 for adaptation.

[0055] Specifically, Figure 1As shown, the base 21 is an integrally formed structure, including a top plate 211, a bottom plate 212, a vertical plate 213 and a plurality of wing plates 214. The top plate 211 and the bottom plate 212 are placed horizontally and arranged in parallel and spaced apart from each other. The vertical plate 213 extends along the second direction and is vertically connected between the top plate 211 and the bottom plate 212 to form an "I"-shaped structure. The long hole 2121 is specifically opened on the bottom plate 212 to connect the bottom plate 212 to the fixing plate 10, and the top plate 211 is connected to the connecting plate 22. A plurality of wing plates 214 are spaced apart along the second direction. The wing plates 214 are perpendicular to the vertical plates 213 and extend along the first direction. The wing plates 214 are also connected between the top plate 211 and the bottom plate 212 to form a supporting effect between the top plate 211 and the bottom plate 212, thereby increasing the structural strength of the base 21 and improving the reliability of the base 21.

[0056] Furthermore, a plurality of installation positions are provided on the top plate 211 of the base 21, and the connecting plate 22 can be selectively fixed to one of the plurality of installation positions to adjust the relative position of the connecting plate 22 and the base 21, so as to adapt to the different ear positions of different battery packs. Figure 1 As shown, a plurality of first fixing holes 2111 are provided on the top plate 211, and the plurality of first fixing holes 2111 are regularly arranged in a rectangular array, and a plurality of second fixing holes 221 are provided on the connecting plate 22, wherein the plurality of second fixing holes 221 which are densely arranged on the connecting plate 22 are used to match the first fixing holes 2111, and bolts are sequentially passed through the first fixing holes 2111 and the second fixing holes 221 and then threadedly connected with nuts to fix the connecting plate 22 to the top plate 211, and a plurality of second fixing holes 221 which are relatively sparsely arranged are provided on a portion of the connecting plate 22 protruding from the top plate 211 along the first direction, and the second fixing holes 221 are used to connect with the hanging ears of the battery pack. The connecting plate 22 can be selectively connected to multiple first fixing holes 2111. The relative position of the connecting plate 22 and the top plate 211 also changes according to the connection plate 22 being fixed to the first fixing holes 2111 at different positions. The connecting plate 22 can be fixed at different installation positions along the first direction and the second direction, respectively, to adapt to the different installation positions of battery packs of different models.

[0057] like Figure 1 As shown, a plurality of locking assemblies 30 are arranged on the base 21 of each support seat 20, and the plurality of locking assemblies 30 are arranged on the fixing plate 10 at intervals along the second direction; the plurality of locking assemblies 30 are divided into a first locking assembly 31 and a second locking assembly 32, the first locking assembly 31 is located at both ends of the support seat 20 along the second direction, and the second locking assembly 32 is located in the middle position of the support seat 20. This arrangement can ensure a stable limit locking effect for the support seat 20. For vibration test fixtures of different specifications, one, two or more second locking assemblies 32 can be adaptively configured in the middle position to ensure the locking effect.

[0058] Specifically, Figure 3 As shown, the first locking assembly 31 includes a first screw rod 312, a first fixing nut 313, a first locking nut 314 and two first fixing seats 311, the two first fixing seats 311 are spaced apart along the first direction and are detachably arranged on the fixing plate 10, and the two first fixing seats 311 are arranged on both sides of the vertical plate 213; the first screw rod 312 penetrates the vertical plate 213 and the two first fixing seats 311 along the first direction; the first fixing nut 313 is threadedly connected with the first screw rod 312, wherein the first screw rod 312 is threadedly connected with the first fixing nut 313 on both sides of each first fixing seat 311, and the two first fixing nuts 313 are tightened at the same time and respectively press against the two sides of the first fixing seat 311 to lock the first screw rod 312 on the two first fixing seats 311; the first screw rod 312 is threadedly connected with the first locking nuts 314 at the positions on both sides of the vertical plate 213, and the two first locking nuts 314 are tightened at the same time to lock the position of the base 21.

[0059] When adjusting the position of the base 21, the first fixing nuts 313 on both sides of each first fixing seat 311 are tightened, so that the first screw rod 312 is locked on the two first fixing seats 311. When operating, first remove the fasteners in each long hole 2121, and at the same time loosen the two first locking nuts 314 to a non-interference position, so that the vertical plate 213 is unlocked, thereby unlocking the base 21, and then the base 21 is moved along the first screw rod 312, and the base 21 drives the connecting plate 22 to move together. After moving to the preset position, first, each fastener is inserted into the first mounting hole 11 and the long hole 2121 to realize the connection between the base 21 and the fixing plate 10, and then the two first locking nuts 314 are screwed to a tight state at the same time to limit the base 21 from moving along the first direction, thereby avoiding the problem of the base 21 slipping during the vibration process. It should be noted that if the distance that the base 21 needs to move exceeds the length range of the first screw 312, the two first fixed seats 311 can be removed from the fixed plate 10 and moved synchronously with the base 21. After moving to the set position, the first fixed seats 311 can be locked on the fixed plate 10 again. It is flexible to use and easy to operate.

[0060] Preferably, reference Figure 3 , the number of the first screw rods 312 is set to two, the two first screw rods 312 are spaced apart along the second direction, and each first screw rod 312 is threadedly connected with a first fixing nut 313 and a first locking nut 314 at a corresponding position. This arrangement can ensure the stability of the locking effect. In other embodiments, the number of the first screw rods 312 can also be set to one, three or more, which can be flexibly set according to actual needs, and is not specifically limited here.

[0061] Specifically, Figure 3 As shown, the first fixing seat 311 includes an L-shaped plate 3111 and a reinforcing rib plate 3112. The horizontal plate of the L-shaped plate 3111 is fitted and connected with the fixing plate 10. The vertical plate of the L-shaped plate 3111 is arranged in parallel with the vertical plate 213 and is used to penetrate the first screw 312. The reinforcing rib plate 3112 is in the shape of a trapezoidal plate, and the right-angled side of the reinforcing rib plate 3112 is fitted and connected with the L-shaped plate 3111. By providing the reinforcing rib plate 3112, the structural strength of the first fixing seat 311 is increased, and the reliability of the first fixing seat 311 is improved. A plurality of third mounting holes 3113 are arranged on the horizontal plate of the L-shaped plate 3111. The plurality of third mounting holes 3113 are aligned with the first mounting holes 11 on the fixing plate 10. The bolts penetrate the first mounting holes 11 and the third mounting holes 3113 in sequence and are threadedly connected with the nuts to fasten the L-shaped plate 3111 to the fixing plate 10. Two third mounting holes 3113 are also provided on the vertical plate of the L-shaped plate 3111, and the two third mounting holes 3113 are respectively aligned with the holes on the vertical plate 213 for the corresponding first screw rods 312 to pass through, so that the first screw rods 312 remain in a horizontal state, avoiding jamming when the base 21 slides in the first direction.

[0062] Furthermore, if Figure 3 As shown, the first locking assembly 31 also includes two first clamping plates 315, which are sleeved on the first screw rod 312 and are respectively located on both sides of the vertical plate 213, and each first clamping plate 315 is respectively located between the vertical plate 213 and the corresponding first locking nut 314. When the base 21 needs to be locked, the two first locking nuts 314 are screwed to the corresponding first clamping plates 315, and at this time, the two first clamping plates 315 clamp the vertical plate 213 together to limit the movement of the base 21 in the first direction, thereby avoiding the problem of the base 21 slipping during the vibration process. By setting the first clamping plates 315, the contact area with the vertical plate 213 can be increased and the pressure can be reduced. Compared with the setting in which the first locking nuts 314 are directly pressed against the vertical plate 213, the risk of damage and deformation of the vertical plate 213 can be reduced.

[0063] Furthermore, if Figure 1 , Figure 4 and Figure 5As shown, the second locking assembly 32 includes a second fixing seat 321, a long bolt 322, a second fixing nut 323 and a second locking nut 324. The second fixing seat 321 is detachably arranged on the fixing plate 10, and the second fixing seat 321 is located on the side of one of the support seats 20 away from the other support seat 20; the long bolt 322 includes a second screw rod 3221 and a head 3222. The second screw rod 3221 passes through the vertical plate 213 and the second fixing seat 321 in sequence along the first direction, and the head 3222 abuts against the vertical plate 213. The second screw rod 3221 is located at The second fixing nuts 323 are threadedly connected at both sides of the second fixing seat 321. After the two second fixing nuts 323 are tightened at the same time, they are respectively pressed against the two sides of the second fixing seat 321 to fasten the second screw rod 3221 to the second fixing seat 321. The second locking nut 324 is threadedly connected to the second screw rod 3221, and the second locking nut 324 is located between the vertical plate 213 and the second fixing nut 323 close to the vertical plate 213. After the second locking nut 324 is tightened, it locks the position of the base 21 together with the head 3222 of the long bolt 322. Among them, the second fixing seat 321 has the same structure as the first fixing seat 311, which will not be repeated here.

[0064] It should be noted that the main difference between the second locking assembly 32 and the first locking assembly 31 is that the second locking assembly 32 is only provided with one second fixing seat 321. Since the second locking assembly 32 is located in the middle position of the base 21, the purpose of not providing another second fixing seat 321 between the two bases 21 is to avoid interference with the battery pack. On this basis, in order to reduce the number of parts, a long bolt 322 is provided. In other embodiments, the long bolt 322 can also be replaced by a second screw 3221 corresponding to the connection of two second fixing nuts 323.

[0065] When adjusting the position of the base 21, the second locking assembly 32 is also operated while operating the first locking assembly 31. The specific process is to first ensure that the second locking nut 324 is in a tightened state, and the second locking nut 324 and the head 3222 of the long bolt 322 jointly clamp the vertical plate 213, and then loosen the two second fixing nuts 323 to a non-interference position, so that the second screw 3221 is in a movable state relative to the second fixing seat 321, and then move the base 21 along the first direction, and the base 21 drives the connecting plate 22 and the second screw 3221 to move together. After moving to the preset position, the two second fixing nuts 323 are simultaneously screwed to a state of being pressed against the second fixing seat 321, so that the second screw 3221 is locked with the second fixing seat 321, thereby limiting the base 21 from moving along the first direction, thereby avoiding the problem of the base 21 slipping during the vibration process. Similarly, if the distance that the base 21 needs to move exceeds the length range of the second screw 3221, the second fixed base 321 can be removed from the fixed plate 10 and moved synchronously with the base 21. After moving to the set position, the second fixed base 321 can be locked on the fixed plate 10 again. It is flexible to use and easy to operate.

[0066] Preferably, reference Figure 4 , the number of the long bolts 322 is set to two, and the two long bolts 322 are spaced apart along the second direction, and the second screw rod 3221 of each long bolt 322 is threadedly connected with the second fixing nut 323 and the second locking nut 324 at the corresponding position. This arrangement can ensure the stability of the locking effect. In other embodiments, the number of the long bolts 322 can also be set to one, three or more, which can be flexibly set according to actual needs, and is not specifically limited here.

[0067] Furthermore, if Figure 4 and Figure 5 As shown, the second locking assembly 32 also includes two second clamping plates 325, which are sleeved on the second screw rod 3221, one of the second clamping plates 325 is located between the vertical plate 213 and the head 3222 of the long bolt 322, and the other second clamping plate 325 is located between the vertical plate 213 and the second locking nut 324. When the base 21 needs to be locked, the second locking nut 324 is tightened, the second locking nut 324 is pressed against one of the second clamping plates 325, and the head 3222 of the long bolt 322 is pressed against the other second clamping plate 325. At this time, the two second clamping plates 325 clamp the vertical plate 213 together to limit the base 21 from moving in the first direction, thereby avoiding the problem of the base 21 slipping during the vibration process. By setting the second clamping plate 325, the contact area with the vertical plate 213 can be increased and the pressure can be reduced. Compared with the setting in which the second locking nut 324 and the head 3222 are directly pressed against the vertical plate 213, the risk of damage and deformation of the vertical plate 213 can be reduced.

[0068] The present embodiment also provides a vibration testing device, including a vibration testing machine and the above-mentioned vibration testing tool, and the vibration testing tool is placed on the table of the vibration testing machine. Specifically, after the vibration testing tool is assembled with the battery pack, the battery pack to be tested and the tool are transferred as a whole to the table of the vibration testing machine, and the fixing plate 10 is fixedly connected to the table of the vibration testing machine to perform a vibration test. By setting different vibration frequencies and vibration durations, the structural strength of the battery pack is repeatedly verified, thereby simulating the use process of an electric vehicle driving on bumpy roads. The vibration testing device provided in this embodiment can ensure the stability of the vibration testing process by setting the above-mentioned vibration testing tool.

[0069] It should be noted that before the vibration test, it is necessary to select a suitable vibration tester according to the size of the battery pack to be tested and the test requirements. For vibration testers of different loads and specifications, a vibration test fixture of a certain specification is matched respectively. Each vibration test fixture of a certain specification can be adapted to a variety of battery packs of different specifications, and has good versatility.

[0070] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. 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 protection scope of the claims of the present invention.

Claims

1. A vibration test tool, characterized in that: include: A fixing plate (10) having a plurality of first mounting holes (11) formed thereon; Two support seats (20) are arranged on the fixing plate (10) opposite to each other and spaced apart along a first direction, a battery pack can be placed between the two support seats (20), and a hanging ear of the battery pack is connected to the support seat (20), the support seat (20) is provided with a long hole (2121) extending along the first direction, the long hole (2121) can selectively face at least one of the first mounting holes (11), and a fastener passes through the long hole (2121) and the first mounting hole (11); A locking assembly (30), when the support seat (20) moves to a preset position along the first direction, the locking assembly (30) is configured to lock the support seat (20) on the fixing plate (10) to limit the movement of the support seat (20) along the first direction.

2. The vibration test tool according to claim 1, characterized in that: Each of the support seats (20) is equipped with a plurality of the locking assemblies (30), and the plurality of the locking assemblies (30) are arranged on the fixing plate (10) at intervals along a second direction, wherein the second direction is perpendicular to the first direction; The plurality of locking assemblies (30) are divided into a first locking assembly (31) and a second locking assembly (32), wherein the first locking assembly (31) is located at two ends of the support seat (20) along the second direction, and the second locking assembly (32) is located in the middle of the support seat (20).

3. The vibration test tool according to claim 2, characterized in that: The first locking assembly (31) comprises: Two first fixing seats (311) are detachably arranged on the fixing plate (10) at intervals along the first direction, and the two first fixing seats (311) are arranged on both sides of the vertical plate (213) of the supporting seat (20); A first screw rod (312) passing through the vertical plate (213) and the two first fixing seats (311) along the first direction; A first fixing nut (313) threadedly connected to the first screw rod (312), the first fixing nut (313) being used to lock the first screw rod (312) onto the two first fixing seats (311); A first locking nut (314), wherein the first screw rod (312) is threadedly connected to positions on both sides of the vertical plate (213) with the first locking nuts (314), and the two first locking nuts (314) are used to lock the position of the support seat (20).

4. The vibration test tool according to claim 3, characterized in that: The first locking assembly (31) further comprises two first clamping plates (315), the two first clamping plates (315) being sleeved on the first screw rod (312) and respectively located on both sides of the vertical plate (213), and each first clamping plate (315) being respectively located between the vertical plate (213) and the corresponding first locking nut (314).

5. The vibration test tool according to claim 2, characterized in that: The second locking assembly (32) comprises: A second fixing seat (321) is detachably arranged on the fixing plate (10), and the second fixing seat (321) is located on a side of one of the supporting seats (20) facing away from the other supporting seat (20); A long bolt (322), wherein a second screw rod (3221) of the long bolt (322) sequentially penetrates the vertical plate (213) of the support seat (20) and the second fixing seat (321) along the first direction; A second fixing nut (323), the second screw rod (3221) is located on both sides of the second fixing seat (321) and is threadedly connected with the second fixing nut (323); The second locking nut (324) is threadedly connected to the second screw rod (3221), and the second locking nut (324) is located between the vertical plate (213) and the second fixing nut (323) close to the vertical plate (213).

6. The vibration test tool according to claim 5, characterized in that: The second locking assembly (32) also includes two second clamping plates (325), which are sleeved on the second screw rod (3221), one of the second clamping plates (325) is located between the vertical plate (213) and the head (3222) of the long bolt (322), and the other second clamping plate (325) is located between the vertical plate (213) and the second locking nut (324).

7. The vibration testing tool according to any one of claims 1 to 6, characterized in that: The support base (20) comprises a base (21) and a connecting plate (22) detachably connected to the base (21); the base (21) is detachably arranged on the fixing plate (10); the long hole (2121) is opened on the bottom plate (212) of the base (21); and the connecting plate (22) is connected to the hanging ear of the battery pack.

8. The vibration testing tool according to claim 7, characterized in that: The base (21) is provided with a plurality of installation stations, and the connecting plate (22) can be selectively fixed to one of the plurality of installation stations to adjust the relative position of the connecting plate (22) and the base (21).

9. The vibration testing tool according to any one of claims 1 to 6, characterized in that: In the first direction, the distance between two adjacent first mounting holes (11) is the same, and the distance between two adjacent first mounting holes (11) is defined as d, and the length of the long hole (2121) is greater than 2d.

10. A vibration testing device, characterized in that: It comprises a vibration testing machine and a vibration testing tool as claimed in any one of claims 1 to 9, wherein the vibration testing tool is placed on a table of the vibration testing machine.

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