Battery pack vibration tooling

Abstract

The utility model relates to battery technical field provides a kind of battery pack vibration tool, relatively arranged side mounting seat and one end mounting seat, two side mounting seats and end mounting seat are enclosed to form the containing area for containing battery pack, at least one connecting piece is located between two side mounting seats, the utility model can be applicable to different size battery pack by split type tool assembly, increase its versatility, and split type structure can effectively reduce the volume and weight of vibration tool;By the connecting portion of tool assembly and battery pack itself is fixed, the stability of vibration tool and battery pack connection can be improved;Battery pack and vibration tool are combined into a whole by connecting piece, hoisting of battery pack and side mounting seat is facilitated, while ensuring that hoisting process will not be unevenly stressed by two sides.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a vibration fixture for a battery pack. Background Technology

[0002] To simulate the vibration environment that battery packs may face in real-world application scenarios and to verify the reliability, safety, and performance stability of the battery packs, vibration testing is required. Specifically, the battery pack under test is fixed on a vibration table using a vibration testing fixture. The vibration testing fixture needs to be stably connected to the battery pack. Therefore, to achieve a stable connection, the vibration fixture is generally customized as an integrated connecting block.

[0003] However, due to the wide variety of battery pack sizes, customizing vibration fixtures for different battery packs is costly. Furthermore, integrated vibration fixtures are bulky, making installation inconvenient, lacking versatility, and difficult to move. In addition, storing vibration fixtures for various battery packs when not in use takes up a lot of space. Utility Model Content

[0004] The purpose of this invention is to provide a battery pack vibration fixture to solve the problems in the prior art. It can adapt to various battery packs of different sizes while ensuring a stable connection, and it has high versatility and does not take up extra space.

[0005] This utility model provides a battery pack vibration fixture, including:

[0006] A tooling assembly for connecting the connection portion of a battery pack, the tooling assembly including a side mounting seat and an end mounting seat disposed opposite each other, the two side mounting seats and the end mounting seat surrounding and forming a receiving area for receiving the battery pack;

[0007] At least one connector is disposed between the two side mounting seats, the connector comprising two oppositely disposed fixed seats and a crossbeam movably connected between the two fixed seats, the crossbeam being movable on the fixed seats along the length direction of the crossbeam.

[0008] In the battery pack vibration fixture described above, preferably, a first groove is provided on the side of the fixed seat opposite to the side mounting seat, and the two ends of the crossbeam are respectively disposed in the corresponding first groove.

[0009] In the battery pack vibration fixture described above, preferably, a second groove is provided on the side of the crossbeam opposite to the battery pack, and a plurality of first mounting holes are provided in the second groove for connecting the lifting points of the battery pack.

[0010] In the battery pack vibration fixture described above, preferably, the side mounting base includes a first base and a first top plate disposed on the first base, and the first top plate has a plurality of second mounting holes for connecting the battery pack.

[0011] In the battery pack vibration fixture described above, preferably, the first base has several weight-reduction grooves.

[0012] In the battery pack vibration fixture described above, preferably, the end mounting base includes a base plate and a second top plate disposed on the base plate, a plurality of columns are spaced apart between the base plate and the second top plate, and a plurality of third mounting holes for fixing the battery pack are provided on the second top plate.

[0013] In the battery pack vibration fixture described above, preferably, the side of the second top plate facing the battery pack has a first recess that is adapted to the battery connection assembly of the battery pack.

[0014] In the battery pack vibration fixture described above, preferably, the fixture assembly further includes two end mounting blocks, both of which are disposed relative to the end mounting base, and the two end mounting blocks are disposed opposite each other on the same side of the battery pack.

[0015] In the battery pack vibration fixture described above, preferably, the end mounting block includes a second base and a third top plate, the third top plate is disposed on the second base, a second recess is provided between the second base and the third top plate, the connecting part of the battery pack can be accommodated in the second recess, and the side of the second recess facing the battery pack is provided with an inclined surface adapted to the battery pack.

[0016] In the battery pack vibration fixture described above, preferably, both the end mounting base and the connecting member have several lifting rings on the side opposite to the battery pack.

[0017] Compared with the prior art, this utility model uses a split tooling component to surround the battery pack from the circumference, which can be applied to battery packs of different sizes, increasing its versatility. Moreover, the split structure can effectively reduce the volume and weight of the vibration tooling, making it easy to install and saving space.

[0018] By fixing the tooling components to the battery pack itself, the stability of the connection between the vibration tooling and the battery pack can be improved. Compared with locking the battery pack itself, this method can effectively reduce damage to the battery pack itself.

[0019] The battery pack is connected and fixed from above by connectors, so that the battery pack and the vibration fixture are combined into a whole, which facilitates the hoisting of the battery pack and the side mounting base, and ensures that the battery pack will not be damaged due to uneven force on both sides during the hoisting process.

[0020] The crossbeam can move relative to the fixed seats on both sides, allowing the connector to accommodate battery packs of different widths. Attached Figure Description

[0021] Figure 1 This is an exploded view of the battery pack vibration fixture provided in an embodiment of this utility model;

[0022] Figure 2 This is a perspective view of the connector provided in an embodiment of this utility model;

[0023] Figure 3 This is a cross-sectional view of the connector provided in an embodiment of this utility model;

[0024] Figure 4 This is a perspective view of the side mounting base provided in an embodiment of this utility model;

[0025] Figure 5 This is a perspective view of the end mounting base provided in an embodiment of the present utility model;

[0026] Figure 6 This is a perspective view of the end mounting block provided in an embodiment of the present invention;

[0027] Figure 7 This is a perspective view of Embodiment 1 of this utility model;

[0028] Figure 8 This is a perspective view of Embodiment 2 of this utility model;

[0029] Figure 9 This is a perspective view of Embodiment 3 of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10. Side mounting bracket; 11. First base; 110. Weight reduction groove; 12. First top plate; 120. Second mounting hole;

[0032] 20. End mounting base; 21. Base plate; 22. Second top plate; 220. Third mounting hole; 221. First recess; 23. Column;

[0033] 30. End mounting block; 31. Second base; 310. Inclined surface; 32. Third top plate; 320. Fourth mounting hole; 33. Second recess;

[0034] 40. Connector; 41. Fixing base; 410. First groove; 411. Fifth mounting hole; 42. Crossbeam; 420. Second groove; 421. First mounting hole;

[0035] 50. Rings;

[0036] 60. Battery pack; 61. Connecting part; 62. Mounting point; 63. Lifting point; 64. Battery connecting assembly; 65. Angled connecting part. Detailed Implementation

[0037] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] The battery packs 60 of new energy vehicles have different sizes, including different lengths and widths. The commonly used integrated vibration fixtures cannot be adjusted and can only be used for battery packs 60 of the same size and model. They have poor versatility, and their size and weight are relatively large, resulting in serious material consumption. Moving them up and down the vibration table is also time-consuming and labor-intensive.

[0039] See Figure 1 As shown, the present invention provides a battery pack vibration fixture, including a fixture assembly and at least one connector 40, wherein:

[0040] The tooling assembly is used to connect the connecting portion 61 of the battery pack 60. The tooling assembly includes a side mounting seat 10 and an end mounting seat 20 disposed opposite to each other. The two side mounting seats 10 and the end mounting seat 20 enclose a receiving area for accommodating the battery pack 60. The battery pack 60 has connecting portions 61 on both sides in the length direction and on one side in the width direction. Each connecting portion 61 has multiple mounting points 62 for connecting to the base of the new energy vehicle. Therefore, in this embodiment, the side mounting seats 10 and the end mounting seats 20 surround the three sides of the battery pack 60 with connecting portions 61 and connect to them. Compared to vibration tooling that directly fixes to the battery pack 60 body, this application utilizes the connecting portions 61 inherent in the battery pack 60 itself. This not only reduces damage to the battery pack 60 body caused by the vibration tooling and its impact on vibration testing, but also allows for a stable connection using these mounting points 62. The tooling assembly of this embodiment can be fixed to the battery pack 60 and then moved to a vibration table, or fixed to it on the vibration table. This application can be adapted to battery packs of different sizes 60, and because each part is separate, it can greatly reduce the size and weight of the vibration fixture.

[0041] See Figure 2As shown, the connector 40 is disposed between the two side mounting seats 10. The connector 40 includes two oppositely disposed fixed seats 41 and a crossbeam 42 movably connected between the two fixed seats 41. The crossbeam 42 moves along the length of the fixed seats 41. In this embodiment, the connector 40 is limited from above the battery pack 60. The number and position of the connectors 40 can be adjusted according to the size of the battery pack 60. The fixed seats 41 are connected to the top of the side mounting seats 10. The relative position of the fixed seats 41 and the side mounting seats 10 can be adjusted according to the distance between the two side mounting seats 10, thereby adapting to battery packs 60 of different widths. The crossbeam 42 can move relative to the two fixed seats 41, allowing for a wider range of width adjustment.

[0042] In one possible implementation, see [link to implementation details]. Figure 2 and Figure 3 As shown, a first groove 410 is provided on the side of the mounting base 41 opposite to the side mounting base 10, and the two ends of the crossbeam 42 are respectively located in the corresponding first groove 410. When the width of the battery pack 60 is small, and adjusting the position of the mounting base 41 and the side mounting base 10 is no longer sufficient to adjust the width of the battery pack 60, the crossbeam 42 can move in the first groove 410 of the two mounting bases 41, thereby further shortening the distance between the two mounting bases 41 to adapt to the width of the battery pack 60 and increase its versatility. Several fifth mounting holes 411 are provided in the crossbeam 42 and the first groove 410 respectively, and the crossbeam 42 is connected to the mounting base 41 by bolts or the like.

[0043] Some battery packs 60 also have multiple suspension points 63 on their tops to enhance the stability of their connection. See also Figure 2 and Figure 3 As shown, a second groove 420 is provided on the side of the crossbeam 42 opposite to the battery pack 60. Several first mounting holes 421 are provided within the second groove 420. The first mounting holes 421 are used to connect the lifting points 63 of the battery pack 60. The second groove 420 is provided along the length of the crossbeam 42. The purpose of providing the second groove 420 is to reduce the counterweight of the connector 40 to a certain extent, reduce material consumption, and optimize weight. Furthermore, since the first mounting holes 421 are located within the second groove 420, when bolts are fixed to the lifting points 63 through the first mounting holes 421, the force path is shortened and concentrated, allowing for a stable connection without penetrating the entire thickness of the crossbeam 42.

[0044] To ensure proper fit of the connecting portion 61 of the battery pack 60, this embodiment also optimizes the structure of the tooling assembly, specifically as follows: See Figure 4As shown, the side mounting base 10 includes a first base 11 and a first top plate 12 disposed on the first base 11. The first top plate 12 has a plurality of second mounting holes 120 for connecting the battery pack 60. The side of the first top plate 12 facing the battery pack 60 extends to the outside of the base. The portion of the first top plate 12 extending from the first base 11 can directly fit against the connecting portion 61 of the battery pack 60, reducing shaking. The second mounting holes 120 are fixed to the mounting points 62 on the connecting portion 61 of the battery pack 60. The first base 11 abuts against or is close to the side wall of the connecting portion 61, which can greatly reduce the installation gap and avoid shaking or stress concentration caused by the suspended area.

[0045] In this embodiment, see Figure 4 As shown, the first base 11 is also provided with several weight reduction grooves 110. The weight reduction grooves 110 are equidistantly arranged along the width direction of the battery pack 60. While ensuring stability, the amount of material used is reduced as much as possible to achieve lightweighting.

[0046] See Figure 1 and Figure 5 As shown, since the connecting portion 61 in the length direction of the battery pack 60 is longer than the connecting portion 61 in the width direction, the two side mounting seats 10 play a primary fixing role, while the end mounting seat 20 plays a secondary fixing role. Therefore, the tooling weight can be reduced to a greater extent on the end mounting seat 20. The end mounting seat 20 includes a base plate 21 and a second top plate 22 disposed on the base plate 21. A plurality of uprights 23 are spaced apart between the base plate 21 and the second top plate 22. A plurality of third mounting holes 220 for fixing the battery pack 60 are formed on the second top plate 22. In this embodiment, the base plate 21 is thinner and lighter than the first base 11, and the gaps between the uprights 23 are larger, which can reduce tooling costs.

[0047] See Figure 1 and Figure 5 As shown, in this embodiment, the side of the second top plate 22 facing the battery pack 60 has a first recess 221 adapted to the battery connection assembly 64 on the battery pack 60. It should be noted that the battery pack 60 has a battery connection assembly 64 on one side of the connection portion 61 in the width direction, which is used to connect to the vehicle end connector of the base of the new energy vehicle. When the second top plate 22 is connected to the end connection portion 61, the first recess 221 can avoid the battery connection assembly 64.

[0048] See Figure 1As shown, the tooling assembly also includes two end mounting blocks 30, which are disposed opposite to the end mounting base 20 and are positioned opposite each other on the same side of the battery pack 60. Some battery packs 60 have a connecting portion 61 on only one side in the width direction, while some battery packs 60 have two oppositely disposed oblique connecting portions 65 on the other side in the width direction. Therefore, for battery packs 60 with oblique connecting portions 65, the end mounting blocks 30 can be connected to the oblique connecting portions 65 to increase the stability of the connection of the battery pack 60.

[0049] See Figure 1 and Figure 6 As shown, the end mounting block 30 includes a second base 31 and a third top plate 32. The third top plate 32 is disposed on the second base 31, and a second recess 33 is provided between the second base 31 and the third top plate 32. The connecting part 61 of the battery pack 60 can be accommodated in the second recess 33, and the side of the second recess 33 facing the battery pack 60 is provided with an inclined surface 310 adapted to the battery pack 60. The end mounting block 30 is used to connect the battery pack 60 with the inclined connecting part 65. The inclined surface 310 can accurately match the shape of the inclined connecting part 65, improving the connection reliability. The third top plate 32 is used to connect the inclined connecting part 65 of the battery pack 60 and has a fourth mounting hole 320. Since the inclined connecting part 65 is relatively narrow, in order to prevent it from being damaged during vibration, the inclined connecting part 65 is accommodated in the second recess 33, which has a certain protective function. When the inclined connecting part 65 and the side connecting part 61 of the battery pack 60 are not at the same height, the end mounting block 30 also plays the role of adapting the height. It should be noted that the bottom of the tooling assembly connected to the battery pack 60 should be on the same horizontal plane.

[0050] See Figure 1 As shown, both the end mounting base 20 and the connector 40 have several lifting rings 50 on the side opposite to the battery pack 60. In this embodiment, the lifting rings 50 are spaced apart and distributed at multiple points, allowing the vibration fixture to be hoisted onto the vibration table together with the battery pack 60, or the corresponding vibration fixture to be hoisted around the battery pack 60 for installation.

[0051] The following description uses three different embodiments.

[0052] Example 1

[0053] Battery pack 60 having suspension point 63 and angled connection 65: See Figure 7As shown, the battery pack 60 is fixed by two side mounting seats 10, one end mounting seat 20, two end mounting blocks 30, and three connectors 40. The first top plate 12 is fixed to the connecting part 61 in the length direction of the battery pack 60 through the second mounting hole 120. The second top plate 22 is fixed to the connecting part 61 with the battery connecting group in the width direction of the battery pack 60 through the third mounting hole 220. The connectors 40 are positioned at the lifting point 63. By adjusting the position of the moving beam 42 in the two side mounting seats 41 and the relative position of the mounting seats 41 and the first top plate 12, the connectors 40 are made to fit the width of the battery pack 60. The two end mounting blocks 30 are fixed to the other side of the inclined connecting part 65 in the width direction of the battery pack 60. The inclined surface 310 of the inclined connecting part 65 is adapted to the inclined surface 310, and the contact surface is more closely fitted. After the vibration fixture is fixed to the battery pack 60, it is lifted onto the vibration table by the lifting ring 50.

[0054] Example 2

[0055] Battery pack 60 without suspension point 63 but with angled connection 65: See Figure 8 As shown, it is fixed by two side mounting seats 10, one end mounting seat 20, two end mounting blocks 30 and three connectors 40. The difference from embodiment 1 is that it is also fixed by connecting to the lifting point 63 through the first mounting hole 421, and the three connectors 40 are equidistantly arranged.

[0056] Example 3

[0057] A battery pack 60 without the angled connecting portion 65, and a shorter battery pack 60: see [link to relevant documentation]. Figure 9 As shown, the battery pack 60 is fixed by two side mounting seats 10, one end mounting seat 20 and at least one connector 40. The difference from Embodiment 1 is that the two side mounting seats 10 and one end mounting seat 20 surround the battery pack 60 on three sides, and the connector 40 is set at the lifting point 63 of the battery pack 60, or for the battery pack 60 without the lifting point 63, it is set at equal intervals.

[0058] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A battery pack vibration fixture, characterized in that, include: A tooling assembly for connecting the connection portion of a battery pack, the tooling assembly including a side mounting seat and an end mounting seat disposed opposite each other, the two side mounting seats and the end mounting seat surrounding and forming a receiving area for receiving the battery pack; At least one connector is disposed between the two side mounting seats, the connector comprising two oppositely disposed fixed seats and a crossbeam movably connected between the two fixed seats, the crossbeam being movable on the fixed seats along the length direction of the crossbeam.

2. The battery pack vibration fixture according to claim 1, characterized in that, The fixed base has a first groove on the side opposite to the side mounting base, and the two ends of the crossbeam are respectively located in the corresponding first groove.

3. The battery pack vibration fixture according to claim 1, characterized in that, A second groove is provided on the side of the crossbeam opposite to the battery pack, and a plurality of first mounting holes are provided in the second groove for connecting the lifting points of the battery pack.

4. The battery pack vibration fixture according to claim 1, characterized in that, The side mounting base includes a first base and a first top plate disposed on the first base, and the first top plate has a plurality of second mounting holes for connecting the battery pack.

5. The battery pack vibration fixture according to claim 4, characterized in that, The first base has several weight-reducing grooves.

6. The battery pack vibration fixture according to claim 1, characterized in that, The end mounting base includes a base plate and a second top plate disposed on the base plate. A plurality of columns are provided between the base plate and the second top plate. A plurality of third mounting holes for fixing the battery pack are provided on the second top plate.

7. The battery pack vibration fixture according to claim 6, characterized in that, The side of the second top plate facing the battery pack has a first recess for a battery connection assembly adapted to the battery pack.

8. The battery pack vibration fixture according to claim 1, characterized in that, The tooling assembly also includes two end mounting blocks, both of which are disposed relative to the end mounting base, and the two end mounting blocks are disposed opposite each other on the same side of the battery pack.

9. The battery pack vibration fixture according to claim 8, characterized in that, The end mounting block includes a second base and a third top plate. The third top plate is disposed on the second base. A second recess is provided between the second base and the third top plate. The connecting part of the battery pack can be accommodated in the second recess. The side of the second recess facing the battery pack is provided with an inclined surface adapted to the battery pack.

10. The battery pack vibration fixture according to claim 1, characterized in that, Both the end mounting base and the connector have several lifting rings on the side opposite to the battery pack.

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