Tooling for battery pack impact testing

Abstract

The utility model relates to battery package test technical field discloses a kind of tool for battery package impact test, with the first direction and the second direction of two perpendicular intersection, including rack;Two fixed components, interval arrangement in the second direction, the fixed component includes mounting beam, two first connectors and multiple second connectors;The mounting beam extends in the first direction;Two first connectors are respectively arranged in the both ends of the mounting beam, and with the rack detachable connection;Multiple second connectors are interval arrangement in the first direction, and with the mounting beam detachable connection, and the second connector is used for being connected with battery package.The utility model has the beneficial effects: the impact test of battery package of different sizes can be applied, the manufacturing quantity of tool is reduced, test efficiency is improved, and cost is saved.

Description

Technical Field

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

[0002] In the field of new energy vehicles, the safety of battery packs is of paramount importance. To test the performance of battery packs under external impact, it is usually necessary to simulate impact conditions that might be encountered in real-world environments. Therefore, impact testing of the bottom of the battery pack is required. This typically involves fixing the battery pack to a fixture and using an impact testing device to test the bottom of the battery pack.

[0003] Because battery packs from different manufacturers and for different car models have different sizes, different sizes of tooling are usually customized according to the size of the battery pack in order to fix the battery packs during the testing process. The number of toolings is large and the manufacturing cycle is long, resulting in low testing efficiency and high testing costs. Utility Model Content

[0004] The purpose of this invention is to provide a tooling for impact testing of battery packs, which can be used for impact testing of battery packs of different sizes, reducing the number of tooling components required, improving testing efficiency, and saving costs.

[0005] To achieve the above objectives, this utility model provides a tooling for battery pack impact testing, having a first direction and a second direction that intersect each other perpendicularly, including...

[0006] frame;

[0007] Two fixing components are spaced apart in the second direction, and each fixing component includes a mounting beam, two first connectors and a plurality of second connectors;

[0008] The mounting beam extends in the first direction;

[0009] The two first connectors are respectively located at both ends of the mounting beam and are detachably connected to the frame;

[0010] A plurality of second connectors are spaced apart in the first direction and are detachably connected to the mounting beam. The second connectors are used to connect to the battery pack.

[0011] Furthermore, the second connector includes a third plate, a fourth plate, and multiple screws;

[0012] The third plate is fitted to the bottom surface of the mounting beam, and the third plate has threaded holes corresponding to the lifting holes of the battery pack.

[0013] The fourth plate is fitted to the top surface of the mounting beam;

[0014] Multiple screws are spaced apart in the first direction and the second direction. The bottom of each screw is threaded to the third plate, and the top of each screw penetrates the fourth plate and is fitted with a locking nut.

[0015] Furthermore, the number of screws is at least four.

[0016] Furthermore, the number of threaded holes is multiple, the diameters of the multiple threaded holes are different, and they are spaced apart in the first direction.

[0017] Furthermore, the frame has two support beams, which are spaced apart in the first direction and extend in the second direction;

[0018] The first connector includes a first plate, a second plate, and multiple screws;

[0019] The first plate is fitted to the bottom surface of the support beam.

[0020] The second plate is fitted to the top surface of the support beam and connected to the mounting beam;

[0021] Multiple screws are spaced apart in the first direction and the second direction, and the threaded sections of the screws pass through the first plate and the second plate in sequence, with a fixing nut sleeved at the end.

[0022] Furthermore, it also includes padding blocks;

[0023] The pad is disposed between the mounting beam and the third plate.

[0024] or,

[0025] The pad is located between the support beam and the second plate.

[0026] Furthermore, the mounting beam is provided with connecting blocks at both ends, and the other end of the connecting blocks is connected to the second plate.

[0027] Furthermore, the bottom of the frame is equipped with casters and adjustable feet.

[0028] Furthermore, the bottom of the frame is provided with a cavity for accommodating the impact device.

[0029] Furthermore, the projection of the frame onto a vertical plane parallel to the second direction is convex.

[0030] Compared with existing technologies, the present invention provides a fixture for battery pack impact testing. Its advantages include: two fixing components spaced apart in a second direction; the fixing components are detachably connected to the frame via a first connector, allowing adjustment of the distance between the two fixing components; and multiple second connectors spaced apart in the first direction and detachably connected to a mounting beam; the distance between the second connectors is adjustable, and the second connectors are used to connect to the battery pack. By synchronously adjusting the distance between the two fixing components and the distance between the multiple second connectors, it can connect to battery packs of different sizes, making it suitable for impact testing of battery packs of different sizes, reducing the number of fixtures required, improving testing efficiency, and saving costs. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the tooling for battery pack impact testing according to an embodiment of this utility model;

[0032] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0033] Figure 3 This is a schematic diagram of the structure of the second connecting member of the tooling for battery pack impact testing according to an embodiment of this utility model;

[0034] Figure 4 This is a front view of the tooling used for battery pack impact testing according to an embodiment of this utility model;

[0035] Figure 5 This is a side view of the tooling used for impact testing of battery packs according to an embodiment of this utility model;

[0036] Figure 6 This is a top view of the tooling used for impact testing of battery packs according to an embodiment of this utility model.

[0037] In the diagram, 1 is the frame; 11 is the support beam; 12 is the caster wheel; 13 is the adjustable foot; 100 is the cavity; 2 is the fixing assembly; 21 is the mounting beam; 22 is the first connector; 221 is the first plate; 222 is the second plate; 223 is the screw; 224 is the fixing nut; 23 is the second connector; 231 is the third plate; 232 is the fourth plate; 233 is multiple screws; 2311 is the threaded hole; 234 is the locking nut; 24 is the connecting block; X is the first direction; Y is the second direction; a is the battery pack; a1 is the lifting hole; b is the impact device. Detailed Implementation

[0038] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0039] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device and element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0041] like Figures 1 to 6 As shown, a preferred embodiment of the present invention provides a fixture for battery pack impact testing, having a first direction X and a second direction Y intersecting perpendicularly in pairs. It includes a frame 1 and two fixing components 2, wherein the frame 1 serves as a mounting carrier, and the two fixing components 2 are used to connect to the battery pack a. For ease of explanation, the length direction of the frame 1 is defined as the first direction X, and the width direction as the second direction Y.

[0042] For ease of installation of battery packs of different sizes and specifications, please refer to [reference needed]. Figure 1 Two fixing components 2 are spaced apart in the second direction Y. Each fixing component 2 includes a mounting beam 21, two first connecting members 22, and multiple second connecting members 23. The mounting beam 21 extends in the first direction X. The two first connecting members 22 are respectively located at both ends of the mounting beam 21 and are detachably connected to the frame 1. The multiple second connecting members 23 are spaced apart in the first direction X and are detachably connected to the mounting beam 21. The second connecting members 23 are used to connect to battery pack a. When connecting to battery packs a of different sizes, the detachable connection of the first connecting members 22 to the frame 1 allows for adjustable spacing between the two fixing components 2 in the second direction Y. After adjusting to a suitable spacing, the first connecting members 22 are locked to the frame 1. Then, the spacing of the multiple second connecting members 23 in the first direction X is adjusted to connect to the battery pack a. Thus, one fixture can accommodate battery packs a of various sizes. By placing the impact end of the impact device directly against the bottom of the battery pack a, impact testing of the battery pack a can be performed, reducing the number of fixtures required, improving testing efficiency, and saving costs.

[0043] Furthermore, in order to simplify the structure of the second connector 23 and facilitate the disassembly of the second connector 23 from the mounting beam 21, in this embodiment, refer to... Figure 1 and Figure 3 The second connector 23 includes a third plate 231, a fourth plate 232, and multiple screws 233. The third plate 231 is fitted to the bottom surface of the mounting beam 21. To facilitate the connection between the second connector 23 and the battery pack a, the third plate 231 has a threaded hole 2311 corresponding to the lifting hole a1 of the battery pack a. The fourth plate 232 is fitted to the top surface of the mounting beam 21. The multiple screws 233 are spaced apart in the first direction X and the second direction Y. The bottom of the screws is threaded to the third plate 231, and the top of the screws passes through the fourth plate 232 and is fitted with a locking nut 234.

[0044] When it is necessary to secure battery pack a, such as Figure 1 As shown, battery pack a has mounting holes a1 on both sides. By inserting locking screws (not shown in the figure) through the mounting holes a1 of battery pack a and connecting them to the third plate 231 through threaded holes 2311, battery pack a can be fixed to the second connector 23. Furthermore, when it is necessary to adjust the spacing of multiple second connectors 23 in the second direction Y, by loosening the locking nuts 234 on each second connector 23, the locking state of the third plate 231, the fourth plate 232 and the mounting beam 21 can be released, allowing the second connector 23 to move as a whole in the second direction Y. After moving to a suitable spacing, the threaded holes 2311 on each second connector 23 can be coaxially aligned with the mounting holes a1, facilitating the insertion of locking screws.

[0045] Furthermore, in order to facilitate the reasonable arrangement of the screws on the third plate 231 and the fourth plate 232, the number of screws is at least 4. The number of screws can be adaptively adjusted according to the size of the third plate 231 and the fourth plate 232 and the specifications of the battery pack a to be connected. In this embodiment, in order to facilitate the efficiency of adjusting the spacing between multiple second connectors 23, the number of screws is 4.

[0046] Furthermore, since the diameters of the mounting holes a1 on battery packs a of different sizes are different, in order to improve the connection accuracy between the second connector 23 and the battery pack a, refer to... Figure 1 , Figure 3 There are multiple threaded holes 2311, each with a different diameter, and they are spaced apart in the first direction X. This allows for the use of lifting holes a1 with different diameters, thereby meeting the connection accuracy requirements of battery packs a of different sizes. Furthermore, to ensure uniform force distribution when the battery pack a is connected to the frame 1, such as... Figure 1 As shown, the number of second connectors 23 in a fixing component 2 is at least two. Preferably, in this embodiment, the number of second connectors 23 in a fixing component 2 is four, which are fixed to both ends and the middle of the battery pack a in the length direction, respectively.

[0047] Furthermore, to facilitate the detachable connection of the first connector 22 to the frame 1, and to easily adjust the installation position, such as... Figure 1 , Figure 6 As shown, the frame 1 has two support beams 11, which are spaced apart in the first direction X and extend in the second direction Y. The first connecting member 22 includes a first plate 221, a second plate 222 and multiple screws 223. The first plate 221 is disposed against the bottom surface of the support beam 11. The second plate 222 is disposed against the top surface of the support beam 11 and is connected to the mounting beam 21. The multiple screws 223 are spaced apart in the first direction X and the second direction Y. The threaded section of the screw 223 passes through the first plate 221 and the second plate 222 in sequence, and the end is fitted with a fixing nut 224. When it is necessary to adjust the spacing between the two fixed components 2 in the second direction Y, that is, to adjust the spacing between the two mounting beams 21, by loosening the fixing nuts 224 in the first connecting parts 22 at both ends of each mounting beam 21, the locking state between the first plate 221, the second plate 222 and the support beam 11 is released, and the mounting beam 21 can move in the second direction Y. After the spacing between the two mounting beams 21 is adjusted to a suitable position, the fixing nuts 224 are tightened, the first plate 221 and the second plate 222 clamp the support beam 11, and the position between the mounting beam 21 and the support beam 11 is fixed. Then the battery pack a is installed.

[0048] Furthermore, in this embodiment, see [reference] Figure 1 , Figure 3 When the second connector 23 is connected to the battery pack a, a pad is also included to facilitate adjustment of the distance between the bottom of the battery pack a and the impact end of the impact device. The pad is located between the mounting beam 21 and the third plate 231, or between the support beam 11 and the second plate 222. In this embodiment, when the second connector 23 is connected to the battery pack a, the third plate 231 is also connected to the battery pack a. When the pad is located between the mounting beam 21 and the third plate 231, the installation height of the battery pack a decreases, and the distance between the battery pack a and the impact end of the impact device shrinks. When the pad is located between the support beam 11 and the second plate 222, the overall height of the mounting beam 21 increases, the installation height of the battery pack a rises, and the distance between the battery pack a and the impact end of the impact device increases, thereby meeting the impact testing requirements of the corresponding battery pack a. The adjustment is simple and quick.

[0049] Furthermore, see Figure 1When the distance between the two support beams 11 in the first direction X is less than the length of the battery pack a, since the third plate 231 is located below the support beams 11, to avoid interference between the battery pack a and the support beams 11 during installation, it cannot be fitted to the third plate 231. Therefore, connecting blocks 24 are provided at both ends of the mounting beam 21, and the other end of the connecting block 24 is connected to the second plate 222. This reduces the overall size of the tooling. Specifically, the connecting block 24 is fixed to the second plate 222 and the mounting beam 21 by welding.

[0050] Furthermore, to facilitate the movement of the fixture and adjust its height to accommodate more testing scenarios, the bottom of the frame 1 is equipped with casters 12 and adjustable feet 13. When movement is required, the adjustable feet 13 disengage from the ground, allowing the casters 12 to move the fixture. When height adjustment is needed, the fixture is moved to the testing position, the adjustable feet 13 engage with the ground, and the distance from the bottom of the frame 1 to the ground can be adjusted to achieve the fixture height adjustment. Since the casters 12 and adjustable feet 13 are standard parts and can be directly purchased, their structure will not be described in detail.

[0051] Furthermore, to facilitate the placement of the impact device at the bottom of battery pack a, the bottom of the frame 1 is provided with a cavity 100 for accommodating the impact device. In this embodiment, to reduce the overall weight of the tooling, the frame 1 is constructed using profiles or hollow tubing, and the mounting beam 21 and support beam 11 are also made of hollow tubing. Furthermore, to improve the overall structural stability of the frame 1 and enable it to withstand larger impacts, such as... Figure 4 As shown, the projection of frame 1 onto a vertical plane parallel to the second direction Y is convex, similar to the shape of an impact device.

[0052] The working process of this utility model is as follows: the distance between the two mounting beams 21 in the second direction Y is adjusted by the first connecting member 22, and the distance between the multiple second connecting members 23 in the second direction Y is adjusted so that the threaded hole 2311 on the third plate 231 is coaxial with the lifting hole a1 on the battery pack a. The battery pack a is fixed by the locking screw, and then the impact device is turned on to perform an impact test on the bottom of the battery pack a.

[0053] In summary, this utility model embodiment provides a fixture for battery pack impact testing. Two fixing components 2 are spaced apart in the second direction Y. The fixing components 2 are detachably connected to the frame 1 via first connecting members 22, and the distance between the two fixing components 2 can be adjusted. Multiple second connecting members 23 are spaced apart in the first direction X and detachably connected to the mounting beam 21. The distance between the second connecting members 23 is adjustable, and the second connecting members 23 are used to connect to the battery pack a. By synchronously adjusting the distance between the two fixing components 2 and the distance between the multiple second connecting members 23, it can connect to battery packs a of different sizes, making it suitable for impact testing of battery packs a of different sizes. This reduces the number of fixtures to be manufactured, improves testing efficiency, and saves costs.

[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A fixture for battery pack impact testing, having a first direction and a second direction that intersect each other perpendicularly, characterized in that: include frame; Two fixing components are spaced apart in the second direction, and each fixing component includes a mounting beam, two first connectors and a plurality of second connectors; The mounting beam extends in the first direction; The two first connectors are respectively located at both ends of the mounting beam and are detachably connected to the frame; A plurality of second connectors are spaced apart in the first direction and are detachably connected to the mounting beam. The second connectors are used to connect to the battery pack.

2. The fixture for battery pack impact testing as described in claim 1, characterized in that: The second connector includes a third plate, a fourth plate, and multiple screws; The third plate is fitted to the bottom surface of the mounting beam, and the third plate has threaded holes corresponding to the lifting holes of the battery pack. The fourth plate is fitted to the top surface of the mounting beam; Multiple screws are spaced apart in the first direction and the second direction. The bottom of each screw is threaded to the third plate, and the top of each screw penetrates the fourth plate and is fitted with a locking nut.

3. The fixture for battery pack impact testing as described in claim 2, characterized in that: The number of screws is at least 4.

4. The fixture for battery pack impact testing as described in claim 2, characterized in that: The number of threaded holes is multiple, the diameters of the multiple threaded holes are different, and they are spaced apart in the first direction.

5. The fixture for battery pack impact testing as described in claim 2, characterized in that: The frame has two support beams, which are spaced apart in the first direction and extend in the second direction; The first connector includes a first plate, a second plate, and multiple screws; The first plate is fitted to the bottom surface of the support beam. The second plate is fitted to the top surface of the support beam and is connected to the mounting beam; Multiple screws are spaced apart in the first direction and the second direction, and the threaded sections of the screws pass through the first plate and the second plate in sequence, with a fixing nut sleeved at the end.

6. The fixture for battery pack impact testing as described in claim 5, characterized in that: It also includes pads; The pad is disposed between the mounting beam and the third plate. or, The pad is located between the support beam and the second plate.

7. The fixture for battery pack impact testing as described in claim 6, characterized in that: The mounting beam has connecting blocks at both ends, and the other end of the connecting blocks is connected to the second plate.

8. The fixture for battery pack impact testing as described in claim 1, characterized in that: The bottom of the frame is equipped with casters and adjustable feet.

9. The fixture for battery pack impact testing as described in claim 1, characterized in that: The bottom of the frame is provided with a cavity for accommodating the impact equipment.

10. The fixture for battery pack impact testing as described in claim 1, characterized in that: The projection of the frame onto a vertical plane parallel to the second direction is convex.

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