A general-purpose tool for sweeping frequency vibration of an electric cell

Abstract

This utility model belongs to the field of battery cell testing technology, and discloses a universal fixture for sweep frequency vibration testing of battery cells, including two longitudinal beams, two transverse beams, a connecting plate, and a supporting base plate. The two longitudinal beams are spaced apart along a first direction, and each longitudinal beam includes a vertical plate, an inner side plate, and an outer side plate. The two transverse beams are spaced apart along a second direction, and the two longitudinal beams and two transverse beams together form a frame structure. One end of each transverse beam is detachably connected to the inner side of the vertical plate of a longitudinal beam via a connecting plate. The connecting plate allows the spacing between the two transverse beams and the spacing between the two longitudinal beams to be adjusted. The two sides of the supporting base plate are detachably connected to the bottom of the inner side plates of the two longitudinal beams, respectively. This fixture can be used for sweep frequency and vibration testing of battery cells. By setting the connecting plate, the distance between the two longitudinal beams and the distance between the two transverse beams can be adjusted, thus making the fixture applicable to battery cells of different sizes and different quantities of battery cells in groups, achieving the requirement of versatility.

Description

Technical Field

[0001] This utility model belongs to the field of battery cell testing technology, and specifically relates to a general-purpose tooling for sweep frequency vibration of battery cells. Background Technology

[0002] A battery pack is generally assembled from three modules: cells, modules, and the battery pack itself. However, with the popularization of the electric vehicle market and the rapid development of electric vehicle technology, highly integrated battery packs such as CTP, CTB, and CTC have emerged. CTP (Cell To Pack) is a module-less battery pack, which is widely used and sought after due to its superior integration space. However, because it is a module-less structure, traditional module tooling cannot complete cell-level sweep frequency and vibration tests for CTP battery packs. Utility Model Content

[0003] To address the above problems, this utility model provides a universal tooling for sweep frequency vibration of battery cells, employing the following technical solution:

[0004] A general-purpose tooling for sweep frequency vibration of battery cells includes two longitudinal beams, two transverse beams, a connecting plate, and a supporting base plate;

[0005] The two longitudinal beams are spaced apart along a first direction. Each longitudinal beam includes a vertical plate and an inner and outer plate respectively disposed on both sides of the bottom of the vertical plate.

[0006] Two crossbeams are spaced apart along a second direction, and two longitudinal beams and two crossbeams together form a frame structure. One end of each crossbeam is detachably connected to the inner side of the upright plate of a longitudinal beam via a connecting plate. The connecting plate is configured to be able to adjust its connection position with the upright plate along the second direction, so that the spacing between the two crossbeams is adjustable. The connecting plate is also configured to be able to adjust its connection position with the crossbeam along the first direction, so that the spacing between the two longitudinal beams is adjustable.

[0007] One side of the support base plate is detachably connected to the bottom of the inner side plate of one of the longitudinal beams, and the other side is detachably connected to the bottom of the inner side plate of another longitudinal beam. The support base plate is configured to be able to adjust the connection position with the inner side plate along the first direction, so that the support base plate can adapt to the distance adjustment between the two longitudinal beams.

[0008] Furthermore, the end of the inner side plate has a gap with the side of the battery cell facing the longitudinal beam.

[0009] Furthermore, the top of the end of the inner side plate is provided with a slope.

[0010] Furthermore, it also includes a base, wherein multiple bases are spaced apart along the length direction at the bottom of each longitudinal beam, the bottom of each base is fixed to the vibration table, and the top of each base is detachably connected to the bottom of the outer side plate of the longitudinal beam.

[0011] Furthermore, the connecting plate includes a flat plate and a U-shaped plate;

[0012] One side of the U-shaped plate is connected to the middle of the flat plate, the flat plate is detachably connected to the upright plate, and the flat plate is configured to adjust its connection position with the upright plate along the second direction; both ends of the crossbeam are respectively inserted into one of the U-shaped plates, the U-shaped plates are detachably connected to the crossbeam, and the U-shaped plates are configured to adjust their connection position with the crossbeam along the first direction.

[0013] Furthermore, the flat plate is provided with a set of first through holes on both sides of the U-shaped plate, and multiple sets of fourth through holes are provided at both ends of the vertical plate along the length direction. The multiple sets of fourth through holes are distributed at intervals along the second direction, and each set of fourth through holes matches a set of first through holes.

[0014] Furthermore, both the crossbeam and the U-shaped plate have multiple sets of through holes along the first direction at their connection points.

[0015] Furthermore, the bottom of the U-shaped plate and the side facing away from the flat plate both have openings, the top of the U-shaped plate is provided with a plurality of second through holes spaced apart along the first direction, and both sides of the U-shaped plate are provided with a plurality of sets of third through holes spaced apart along the first direction.

[0016] Both ends of the crossbeam are provided with multiple threaded blind holes and multiple sets of fifth through holes. The multiple threaded blind holes are provided on the top of the crossbeam and are distributed at intervals along the first direction. The top of the crossbeam faces the top of the U-shaped plate. Each fifth through hole penetrates the two sides of the crossbeam facing the first through hole. Each set of fifth through holes matches a set of third through holes.

[0017] Furthermore, the inner side plate is provided with a plurality of sixth through holes at intervals along the length direction, and the two sides of the support base plate connected to the inner side plate are provided with a plurality of sets of seventh through holes. The plurality of sets of seventh through holes are provided at intervals along the first direction, and each set of seventh through holes includes a plurality of seventh through holes at intervals along the length direction of the inner side plate. Each sixth through hole corresponds to one seventh through hole.

[0018] Furthermore, the outer side plate is provided with a plurality of eighth through holes spaced apart along the length direction, the top of the base is provided with a ninth through hole that matches the eighth through holes, and the bottom of the base is provided with a tenth through hole.

[0019] The beneficial effects of this utility model are:

[0020] 1. The tooling of this utility model can be used for frequency sweep and vibration tests at the cell level of CTP battery packs. The tooling is designed with a connecting plate so that the distance between the two longitudinal beams and the distance between the two transverse beams can be adjusted, thus making the tooling suitable for cells of different sizes and different numbers of cells in a pack, achieving the requirement of universality.

[0021] 2. The tooling components of this utility model are few in number, making them easy to assemble and disassemble.

[0022] 3. The inner side plate of the longitudinal beam of this utility model has a gap between the end of the inner side plate and the battery cell. The gap is used for overflow and filling of glue on the side of the battery cell. The top of the end of the inner side plate is provided with a slope, which can realize the function of filling glue from the slope after the battery cell is installed.

[0023] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 An isometric view of a general-purpose tooling for sweep frequency vibration of a battery cell, according to an embodiment of the present invention, is shown with the battery cell mounted on it.

[0026] Figure 2 A top view of a general-purpose tooling for sweep frequency vibration of a battery cell, according to an embodiment of the present invention, is shown, in which the battery cell is mounted.

[0027] Figure 3 An isometric view of a general-purpose tooling for sweep frequency vibration of a battery cell according to an embodiment of the present invention is shown.

[0028] Figure 4 A top view of a general-purpose tooling for sweeping frequency vibration of a battery cell according to an embodiment of the present invention is shown;

[0029] Figure 5 An exploded view of a general-purpose tooling for sweep frequency vibration of a battery cell according to an embodiment of the present invention is shown.

[0030] Figure 6 An isometric view of the base according to an embodiment of the present invention is shown;

[0031] Figure 7 An isometric view of the longitudinal beam according to an embodiment of the present invention is shown;

[0032] Figure 8 An isometric view of the beam according to an embodiment of the present invention is shown;

[0033] Figure 9 An isometric view of the connecting plate according to an embodiment of the present invention is shown;

[0034] Figure 10 An isometric view of the support base plate according to an embodiment of the present invention is shown;

[0035] Figure 11 A front view of the longitudinal beam and the battery cell according to an embodiment of the present invention is shown.

[0036] In the diagram: 1. Battery cell; 2. Base; 3. Longitudinal beam; 4. Crossbeam; 5. Connecting plate; 6. Support base plate; 31. Vertical plate; 32. Inner side plate; 33. Outer side plate; 51. Flat plate; 52. U-shaped plate; 511. First through hole; 521. Second through hole; 522. Third through hole; 311. Fourth through hole; 41. Threaded blind hole; 42. Fifth through hole; 43. Clearance groove; 321. Sixth through hole; 61. Seventh through hole; 331. Eighth through hole; 21. Ninth through hole; 22. Tenth through hole; 23. First connecting block; 24. Second connecting block; 25. Reinforcing block. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] It should be noted that the terms "first," "second," etc., used in this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings.

[0039] This invention provides a universal tooling for sweeping frequency vibration of battery cells, which can be used for sweeping frequency and vibration testing at the cell level in CTP battery packs. Furthermore, this tooling is universal and can be applied to sweeping frequency and vibration testing of battery cells of different sizes and quantities.

[0040] like Figure 1 and Figure 5 As shown, a general-purpose tooling for sweep frequency vibration of battery cell 1 includes a base 2, two longitudinal beams 3, two transverse beams 4, a connecting plate 5, and a supporting base plate 6.

[0041] Among them, two longitudinal beams 3 are spaced apart along the first direction. The longitudinal beam 3 includes a vertical plate 31, and an inner side plate 32 and an outer side plate 33 respectively disposed on both sides of the bottom of the vertical plate 31.

[0042] like Figure 2 As shown, each longitudinal beam 3 has multiple bases 2 spaced along its length at its bottom. The bottom of each base 2 is fixed to the vibration table, and the top of each base 2 is detachably connected to the bottom of the outer side plate 33 of the longitudinal beam 3.

[0043] like Figure 3 As shown, two crossbeams 4 are spaced apart along a second direction, wherein the first direction is the length direction of the crossbeam 4 and the second direction is the length direction of the longitudinal beam 3. For example, the first direction and the second direction are two mutually perpendicular directions.

[0044] like Figure 4 As shown, the two longitudinal beams 3 and the two transverse beams 4 together form a frame structure, as follows: Figure 3 As shown, one end of each crossbeam 4 is detachably connected to the inner side of the vertical plate 31 of a longitudinal beam 3 via a connecting plate 5.

[0045] The connecting plate 5 is configured to be able to adjust its connection position with the vertical plate 31 in the second direction, thereby making the spacing between the two crossbeams 4 adjustable. The connecting plate 5 is also configured to be able to adjust its connection position with the crossbeams 4 in the first direction, thereby making the spacing between the two longitudinal beams 3 adjustable.

[0046] This utility model allows the distance between the two longitudinal beams 3 and the distance between the two transverse beams 4 to be adjusted by setting a connecting plate 5, so that the tooling can be used for battery cells 1 of different sizes and different numbers of battery cells 1, thus achieving the requirement of versatility.

[0047] like Figure 1As shown, one side of the support base plate 6 is detachably connected to the bottom of the inner side plate 32 of a longitudinal beam 3, and the other side is detachably connected to the bottom of the inner side plate 32 of another longitudinal beam 3. The support base plate 6 is used to support the battery cell 1. The support base plate 6 is configured to be able to adjust the connection position with the inner side plate 32 along the first direction, so that the support base plate 6 can adapt to the distance adjustment between the two longitudinal beams 3 and meet the universality requirements of the tooling.

[0048] like Figure 11 As shown, for example, the upright plate 31 and the outer plate 33 are perpendicular to each other, the outer plate 33 is located above the inner plate 32, the inner plate 32 and the outer plate 33 are parallel to each other, and the inner plate 32 is connected to the upright plate 31 and the outer plate 33 by an inclined plate. The thickness of the inclined plate is greater than the thickness of the inner plate 32 and the outer plate 33, thereby ensuring the connection strength.

[0049] The end of the inner side plate 32 of each longitudinal beam 3 has a gap with the side of the battery cell 1 facing the longitudinal beam 3. The gap is used for overflow and filling of glue on the side of the battery cell 1. For example, the top of the end of the inner side plate 32 is provided with a slope, which can realize the function of filling glue from the slope after the battery cell 1 is installed.

[0050] like Figure 1 As shown, when the universal tooling of this utility model fixes multiple battery cells 1, the multiple battery cells 1 are stacked on the support base plate 6 along the second direction. The outer side of the first battery cell 1 is attached to the inner side of a crossbeam 4, and the outer side of the last battery cell 1 is attached to the inner side of another crossbeam 4. After the multiple battery cells 1 are initially fixed, glue is injected into the gap between the end of the inner side plate 32 and the battery cell 1.

[0051] like Figure 9 As shown, for example, the connecting plate 5 includes a flat plate 51 and a U-shaped plate 52, wherein one side of the U-shaped plate 52 is connected to the middle of the flat plate 51, for example, the U-shaped plate 52 and the flat plate 51 are perpendicular to each other; the flat plate 51 is detachably connected to the vertical plate 31 of the longitudinal beam 3, and the flat plate 51 is configured to be able to adjust the connection position with the vertical plate 31 in a second direction; both ends of the crossbeam 4 are respectively inserted into a U-shaped plate 52, the U-shaped plate 52 is detachably connected to the crossbeam 4, and the U-shaped plate 52 is configured to be able to adjust the connection position with the crossbeam 4 in a first direction.

[0052] For example, the plate 51 has a set of first through holes 511 on both sides of the U-shaped plate 52. For example, each set of first through holes 511 includes a plurality of first through holes 511 spaced apart along the height direction of the plate 51.

[0053] like Figure 7As shown, for example, both ends of the vertical plate 31 of the longitudinal beam 3 are provided with multiple sets of fourth through holes 311 in the length direction. The multiple sets of fourth through holes 311 are distributed at intervals along the second direction. Each set of fourth through holes 311 matches a set of first through holes 511. For example, each set of fourth through holes 311 includes multiple fourth through holes 311 that are spaced apart along the height direction of the vertical plate 31.

[0054] Both the crossbeam 4 and the U-shaped plate 52 have multiple sets of through holes along the first direction at their connection point, such as... Figure 9 As shown, for example, the bottom of the U-shaped plate 52 and the side facing away from the flat plate 51 both have openings. The top of the U-shaped plate 52 is provided with a plurality of second through holes 521 spaced apart along the first direction. Both sides of the U-shaped plate 52 are provided with a plurality of sets of third through holes 522 spaced apart along the first direction. Each set of third through holes 522 includes a plurality of third through holes 522 spaced apart along the height direction of the U-shaped plate 52.

[0055] like Figure 8 As shown, for example, both ends of the crossbeam 4 are provided with multiple threaded blind holes 41 and multiple sets of fifth through holes 42. The multiple threaded blind holes 41 are provided on the top of the crossbeam 4 and are distributed at intervals along the first direction. The top of the crossbeam 4 faces the top of the U-shaped plate 52. Each fifth through hole 42 penetrates the two sides of the crossbeam 4 facing the first through hole 511. Each set of fifth through holes 42 matches a set of third through holes 522.

[0056] When using the tooling of this utility model, the plate 51 and the vertical plate 31 are fixedly connected by bolts passing through the first through hole 511 on the plate 51 and the fourth through hole 311 on the vertical plate 31. Both ends of the vertical plate 31 of the longitudinal beam 3 are provided with multiple sets of fourth through holes 311. A suitable set of fourth through holes 311 can be selected to connect with the plate 51 as needed, so that the connection position of the plate 51 and the vertical plate 31 can be adjusted along the second direction. This allows the tooling to be used in scenarios with different numbers of battery cells 1 in different groups, improving the versatility of the tooling.

[0057] The U-shaped plate 52 is connected to the threaded blind hole 41 on the crossbeam 4 by bolts passing through the second through hole 521 on the top of the U-shaped plate 52. The crossbeam 4 is fixedly connected to the U-shaped plate 52 by bolts passing through the third through holes 522 on both sides of the U-shaped plate 52 and the fifth through hole 42 on the crossbeam 4. The connection between the crossbeam 4 and the U-shaped plate 52 of this utility model is provided with multiple sets of corresponding through holes, so that the connection position between the U-shaped plate 52 and the crossbeam 4 can be adjusted along the first direction, so that the tooling can be used for different battery pack cell 1 sizes, improving the versatility of the tooling.

[0058] like Figure 4 As shown, for example, the bottom surface of each beam 4 contacts the top surface of the supporting base plate 6, such as... Figure 8 As shown, each crossbeam 4 has a clearance groove 43 at both ends of its bottom, and the inner side plate 32 of the longitudinal beam 3 passes through the clearance groove 43.

[0059] like Figure 7 As shown, for example, the inner side plate 32 of the longitudinal beam 3 is provided with a plurality of sixth through holes 321 at intervals along the length direction, such as... Figure 10 As shown, multiple sets of seventh through holes 61 are provided on both sides of the support base plate 6 and the inner side plate 32. The multiple sets of seventh through holes 61 are spaced apart along the first direction. Each set of seventh through holes 61 includes multiple seventh through holes 61 spaced apart along the length direction of the inner side plate 32. Each sixth through hole 321 corresponds to one seventh through hole 61.

[0060] Bolts pass through the sixth through hole 321 and the seventh through hole 61 to fix the inner side plate 32 to the bottom of the support. Since the support base plate 6 is provided with multiple sets of seventh through holes 61 along the first direction, a suitable set of seventh through holes 61 can be selected to connect with the sixth through hole 321 of the inner side plate 32 according to the size of different battery pack cells 1.

[0061] like Figure 7 As shown, for example, the outer side plate 33 of the longitudinal beam 3 is provided with a plurality of eighth through holes 331 at intervals along the length direction, such as... Figure 6 As shown, the top of the base 2 is provided with a ninth through hole 21 that matches the eighth through hole 331. The longitudinal beam 3 is fixedly connected to the base 2 by bolts passing through one eighth through hole 331 and the ninth through hole 21. Since there are multiple eighth through holes 331 on the outer side plate 33 of the longitudinal beam 3, the appropriate eighth through hole 331 and an equal number of bases 2 can be selected for fixing according to the actual CTP battery pack housing mounting hole layout. The remaining eighth through holes 331 can also be used as lifting holes.

[0062] The base 2 has a tenth through hole 22 at its bottom. The tooling is fixed to the vibration table by bolts passing through the tenth through hole 22.

[0063] like Figure 6 As shown, for example, the base 2 includes a first connecting block 23 and a second connecting block 24. The height of the first connecting block 23 is greater than that of the second connecting block 24. One side of the first connecting block 23 is fixedly connected to the second connecting block 24 to form an L-shaped structure. Two reinforcing blocks 25 are also provided between the first connecting block 23 and the second connecting block 24 to ensure the strength of the base 2. A ninth through hole 21 is provided on the top of the first connecting block 23. Two tenth through holes 22 are provided. The two tenth through holes 22 are provided on the second connecting block 24 and are located between the two reinforcing blocks 25.

[0064] The tooling of this utility model embodiment achieves universal application for different sizes of battery cells 1 and different numbers of battery cells 1 by setting multiple sets of through holes on the longitudinal beam 3, the cross beam 4, the connecting plate 5, and the supporting base plate 6. Under the technical concept of this utility model, other methods can also be used to achieve adjustable spacing between the two cross beams 4 and between the two longitudinal beams 3. For example, a slide rail can be used.

[0065] This invention realizes a universal tooling device for sweep frequency vibration of battery cell 1 through a compact and simple mechanical structure. The tooling has a small number of parts and is easy to assemble and disassemble.

[0066] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A universal tooling for sweep frequency vibration of a battery cell, characterized in that, It includes two longitudinal beams (3), two transverse beams (4), a connecting plate (5), and a supporting base plate (6); Among them, the two longitudinal beams (3) are spaced apart along the first direction. The longitudinal beam (3) includes a vertical plate (31) and an inner plate (32) and an outer plate (33) respectively disposed on both sides of the bottom of the vertical plate (31). Two crossbeams (4) are spaced apart along a second direction. Two longitudinal beams (3) and two crossbeams (4) together form a frame structure. One end of each crossbeam (4) is detachably connected to the inner side of the upright plate (31) of a longitudinal beam (3) via a connecting plate (5). The connecting plate (5) is configured to be able to adjust its connection position with the upright plate (31) along the second direction, so that the spacing between the two crossbeams (4) is adjustable. The connecting plate (5) is also configured to be able to adjust its connection position with the crossbeams (4) along the first direction, so that the spacing between the two longitudinal beams (3) is adjustable. One side of the support base plate (6) is detachably connected to the bottom of the inner side plate (32) of one of the longitudinal beams (3), and the other side is detachably connected to the bottom of the inner side plate (32) of another longitudinal beam (3). The support base plate (6) is configured to be able to adjust the connection position with the inner side plate (32) along the first direction, so that the support base plate (6) can adapt to the distance adjustment between the two longitudinal beams (3).

2. The frequency-sweeping vibration universal jig for the battery cell according to claim 1, wherein The end of the inner side plate (32) has a gap with the side of the battery cell (1) facing the longitudinal beam (3).

3. The frequency-sweeping vibration universal jig for the battery cell according to claim 2, wherein The top of the end of the inner side plate (32) is provided with a slope.

4. The frequency-sweeping vibration universal jig for the battery cell according to claim 1, wherein It also includes a base (2), wherein a plurality of bases (2) are provided at intervals along the length direction at the bottom of each of the longitudinal beams (3), the bottom of each base (2) is fixed to the vibration table, and the top of each base (2) is detachably connected to the bottom of the outer side plate (33) of the longitudinal beam (3).

5. The universal sweep vibration fixture for battery cells according to any one of claims 1-4, wherein, The connecting plate (5) includes a flat plate (51) and a U-shaped plate (52); One side of the U-shaped plate (52) is connected to the middle of the flat plate (51), the flat plate (51) is detachably connected to the upright plate (31), and the flat plate (51) is configured to be able to adjust its connection position with the upright plate (31) along the second direction; both ends of the crossbeam (4) are respectively inserted into one of the U-shaped plates (52), the U-shaped plate (52) is detachably connected to the crossbeam (4), and the U-shaped plate (52) is configured to be able to adjust its connection position with the crossbeam (4) along the first direction.

6. The frequency-sweeping vibration universal jig for the battery cell according to claim 5, wherein The flat plate (51) has a set of first through holes (511) on both sides of the U-shaped plate (52), and the vertical plate (31) has multiple sets of fourth through holes (311) at both ends in the length direction. The multiple sets of fourth through holes (311) are distributed at intervals along the second direction, and each set of fourth through holes (311) matches a set of first through holes (511).

7. The universal tooling for sweep frequency vibration of battery cells according to claim 6, characterized in that, The crossbeam (4) and the U-shaped plate (52) are provided with multiple sets of through holes along the first direction at their connection points.

8. The frequency-sweeping vibration universal jig for the battery cell according to claim 7, wherein The bottom of the U-shaped plate (52) and the side facing away from the flat plate (51) both have openings. The top of the U-shaped plate (52) is provided with a plurality of second through holes (521) spaced apart along the first direction. Both sides of the U-shaped plate (52) are provided with a plurality of third through holes (522) spaced apart along the first direction. Both ends of the crossbeam (4) are provided with a plurality of threaded blind holes (41) and a plurality of sets of fifth through holes (42). The plurality of threaded blind holes (41) are provided on the top of the crossbeam (4) and are distributed at intervals along the first direction. The top of the crossbeam (4) faces the top of the U-shaped plate (52). Each fifth through hole (42) penetrates the two sides of the crossbeam (4) facing the first through hole (511). Each set of fifth through holes (42) matches a set of third through holes (522).

9. The frequency-sweeping vibration universal jig for the battery cell according to claim 8, wherein The inner side plate (32) is provided with a plurality of sixth through holes (321) spaced apart along the length direction. The two sides of the support base plate (6) connected to the inner side plate (32) are provided with a plurality of seventh through holes (61). The plurality of seventh through holes (61) are spaced apart along the first direction. Each group of seventh through holes (61) includes a plurality of seventh through holes (61) spaced apart along the length direction of the inner side plate (32). Each sixth through hole (321) corresponds to one seventh through hole (61).

10. The frequency-sweeping vibration universal jig for the battery cell according to claim 4, wherein The outer side plate (33) is provided with a plurality of eighth through holes (331) spaced apart along the length direction. The top of the base (2) is provided with a ninth through hole (21) that matches the eighth through hole (331). The bottom of the base (2) is provided with a tenth through hole (22).

Images