Vibration test fixture and vibration test apparatus

Abstract

The utility model belongs to battery manufacturing technical field discloses a kind of vibration test tool and vibration testing device.Vibration test tool includes substrate, two end plate support components, several electric core support pieces, cross shear component and base, two end plate support components are along first direction interval arrangement, each end plate support component is with substrate in first direction sliding fit and can be locked in arbitrary position on sliding path;Several electric core support pieces are along first direction and side arrangement, and electric core support piece includes the first support part and lifting portion that are connected, and lifting portion is connected to the bottom of first support part, and both sides are formed accommodating groove when lifting portion rises;Cross shear component is set one by one with electric core support piece, and cross shear component includes two rotating rods that cross pivot connection, and the bottom of one rotating rod is pivotally connected with base, and the top of two rotating rods is provided with sliding block.The vibration test tool and vibration testing device can adapt to the loading clamping needs of two battery modules, and the operation is simple.

Description

Technical Field

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

[0002] Before leaving the factory, the battery module needs to undergo vibration testing. The battery module includes multiple cells arranged side by side and two end plates. The multiple cells are clamped by the two end plates. During the vibration test, the end plates are connected to the vibration testing device, and each cell needs to be supported during the test.

[0003] A manufacturer produces two specifications of battery modules. The two battery modules have different lengths, and the thickness of individual cells in each battery module is different. The same vibration testing fixture cannot meet the clamping and loading requirements of the two battery modules.

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

[0005] One objective of this invention is to provide a vibration testing fixture that can adapt to the loading and clamping requirements of two types of battery modules, is easy to operate, and can quickly ensure that the battery module is centered.

[0006] Another objective of this invention is to provide a vibration testing device that can adapt to the loading and clamping requirements of two types of battery modules, is easy to operate, and can quickly ensure that the battery module is centered.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A vibration testing fixture is used to fix a battery module, the battery module including a cell assembly and two end plates, the cell assembly extending along a first direction, and each end plate being provided with one of the end plates; the vibration testing fixture includes:

[0009] substrate;

[0010] Two end plate support assemblies are arranged at intervals along the first direction. Each end plate support assembly is slidably engaged with the substrate in the first direction and can be locked at any position on the sliding path. The end plate support assembly is used to support the end plate and can be fixed to the end plate at the corresponding end.

[0011] A plurality of battery cell support members are arranged side by side along the first direction. Each battery cell support member includes a first support part and a lifting part connected together. The first support part extends along the second direction. The lifting part is connected to the bottom of the first support part and slides in a third direction with the substrate. When the lifting part rises, receiving grooves are formed on both sides. The first direction, the second direction and the third direction are perpendicular to each other.

[0012] The cross-scissor assembly and the base are provided. The base is located below the substrate and is used to fix it to the vibration table. The cross-scissor assembly and the cell support are respectively arranged one-to-one. The cross-scissor assembly includes two rotating rods that are cross-pivoted. The bottom of one of the rotating rods is pivotally connected to the base. The top of both rotating rods is provided with a slider. The slider slides in a first direction with the substrate. The slider can be accommodated in the corresponding receiving groove to lift the first support part, or it can be located next to the corresponding cell support part so that the first support part slides down to be flush with the slider.

[0013] As an alternative, each end of the aforementioned cell support is provided with two aforementioned rotating rods, wherein one of the aforementioned rotating rods at one end and one of the aforementioned rotating rods at the other end are respectively connected to the two ends of the same aforementioned slider.

[0014] As an alternative, the substrate has two clearance grooves spaced apart along the second direction, the clearance grooves extend along the first direction, and the rotating rod located at the same end of the battery cell support passes through the clearance grooves.

[0015] As an alternative, the end plate support assembly includes a support member and two locking components connected to the support member. The two locking components are respectively locked to both ends of the end plate. The support member extends along the second direction and includes a second support portion and a sliding portion. The sliding portion slides with the corresponding side of the substrate and is locked by a first locking member. The first locking member can abut against or release the substrate.

[0016] As an alternative, the positions of the two locking components described above are adjustable in the second direction.

[0017] As an optional feature, the top height of the aforementioned locking assembly is adjustable.

[0018] As an optional solution, the locking assembly includes a connector and a base. The connector includes a connecting portion and an adjusting portion. The connecting portion is connected to the end plate. The adjusting portion passes through the support member and the base. At least two first locking holes are provided on the base. The adjusting portion has a second locking hole. The second locking hole can be selectively aligned with any of the first locking holes. The second locking member passes through the aligned first locking holes and the second locking holes in sequence and locks itself with the base.

[0019] As an alternative, the base includes a main body and a stop. The main body is U-shaped, the stop is connected between the two sides of the main body, the adjustment part is inserted into the main body and a limiting part is protruding, and the limiting part is located on the lower side of the stop.

[0020] As an optional solution, the end plate support assembly also includes a digital measuring ruler, which is mounted on the end of the support member.

[0021] The vibration testing apparatus includes a vibration table and the aforementioned vibration testing fixture, wherein the vibration testing fixture is mounted on the vibration table.

[0022] The beneficial effects of this utility model are:

[0023] This utility model provides a vibration testing fixture. Figure 1 The current configuration supports battery modules with thicker cells. To achieve this, adjacent cell supports are spaced apart, ensuring each cell rests precisely on its corresponding support. The position of the end-plate support assembly is adjusted in the first direction to ensure it is positioned directly beneath the end plate. When replacing with a thinner battery module, refer to [further details omitted]. Figure 2 Before the entire fixture is installed on the vibration table, the substrate is placed on the operating table, so that the base is suspended in the air. Pushing the base upward reduces the height of the cross-scissor assembly in the third direction, thereby gradually increasing the distance between the two sliders in the same cross-scissor assembly. The sliders disengage from the corresponding receiving slots, and the lifting part descends, causing the first support to fall. After the lower surface of the first support is in close contact with the upper surface of the substrate, the two sliders are located on both sides of the corresponding first support, filling the gap between two adjacent cell support components. When multiple thin cells are placed on the gapless support platform composed of the cell support component and the slider, each cell can be well supported. Moreover, this setting can still maintain the support platform in the center position of the substrate after switching, ensuring that the battery module is centered when installed on the vibration table and ensuring the uniformity of vibration of the battery module.

[0024] This utility model also provides a vibration testing device, including the aforementioned vibration testing fixture and a vibration table, with the vibration testing fixture mounted on the vibration table. The aforementioned vibration testing device, by employing the aforementioned vibration testing fixture, can adapt to the loading and clamping requirements of two types of battery modules, is simple to operate, and can quickly ensure that the battery module is centered. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the vibration testing fixture provided in this embodiment of the utility model. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the vibration testing fixture provided in this embodiment of the present invention, with the carrier plate removed.

[0027] Figure 3 This is a schematic diagram of the structure of the vibration testing fixture provided in this embodiment of the utility model. Figure 2 ;

[0028] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 yes Figure 3 Enlarged view of point B in the middle.

[0030] In the picture:

[0031] 10. Substrate; 11. Clearance groove;

[0032] 20. End plate support assembly; 21. Support component; 211. Second support part; 212. Sliding part;

[0033] 22. Locking assembly; 221. Connector; 2211. Connecting part; 2212. Adjusting part; 2213. Limiting part; 222. Base; 2221. Main body; 2222. Stop part; 2223. First locking hole; 23. Digital display measuring scale;

[0034] 30. Cell support component; 31. First support section; 32. Lifting section; 33. Receiving groove;

[0035] 40. Cross-cutting assembly; 41. Rotating rod; 42. Slider; 50. Base. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] This embodiment provides a vibration testing fixture for fixing a battery module. The battery module includes a cell assembly and two end plates. The cell assembly extends along a first direction (X direction in the figure), and each end is provided with an end plate. The cell assembly includes multiple cells arranged side by side along the first direction, such as... Figures 1-2As shown, the vibration testing fixture includes a base plate 10, two end plate support assemblies 20, several cell support members 30, a cross-scissor assembly 40, and a base 50. The two end plate support assemblies 20 are arranged at intervals along a first direction. Each end plate support assembly 20 slides with the base plate 10 in the first direction and can be locked at any position on the sliding path. The end plate support assembly 20 is used to support the end plate and can be fixed with the end plate at the corresponding end. Several cell support members 30 are arranged side by side along the first direction. Each cell support member 30 includes a connected first support part 31 and a lifting part 32. The first support part 31 extends along a second direction (Y direction in the figure), and the lifting part 32 is connected to the bottom of the first support part 31 and is in a third direction with the base plate 10 (Figure 50). The lifting part 32 slides in the Z direction and forms receiving grooves 33 on both sides when it rises. The first direction, the second direction and the third direction are perpendicular to each other. The base 50 is located below the substrate 10 and is used to fix it to the vibration table. The cross-scissor assembly 40 and the cell support 30 are arranged one-to-one. The cross-scissor assembly 40 includes two rotating rods 41 that are cross-pivoted. The bottom of one of the rotating rods 41 is pivotally connected to the base 50. The top of the two rotating rods 41 is provided with a slider 42. The slider 42 slides in the first direction with the substrate 10. The slider 42 can be accommodated in the corresponding receiving groove 33 to lift the first support 31, or it can be located on the side of the corresponding cell support 30 so that the first support 31 slides down to be flush with the slider 42.

[0041] The above-mentioned vibration testing fixture, Figure 1 The current state is for supporting battery modules with thicker cells. Therefore, adjacent cell support members 30 are spaced apart so that each cell is placed precisely on its corresponding support member 30. By changing the position of the end plate support assembly 20 in the first direction, it is ensured that the end plate support assembly 20 is just below the end plate. When replacing with a battery module with thinner cells, refer to [further details omitted]. Figure 2Before the entire fixture is installed on the vibration table, the base plate 10 is placed on the operating table, so that the base 50 is suspended in the air. The base 50 is pushed upward, so that the height of the cross shear assembly 40 in the third direction decreases, thereby gradually increasing the distance between the two sliders 42 in the same cross shear assembly 40. The sliders 42 disengage from the corresponding receiving grooves 33, and the lifting part 32 descends, causing the first support part 31 to fall. After the lower surface of the first support part 31 is in close contact with the upper surface of the base plate 10, the two sliders 42 are located on both sides of the corresponding first support part 31 and are close to the first support part 31. The height of section 31 fills the gap between two adjacent cell support members 30. When multiple thin cells are placed on the gapless support platform composed of cell support member 30 and slider 42, each cell can be well supported. Moreover, after switching, when the length of the battery module changes, the locking position of each end plate support component 20 can be changed to adapt to different battery module lengths. The support platform can still maintain the central position of the base plate 10, ensuring that the battery module is centered when installed on the vibration table and ensuring the uniformity of vibration of the battery module.

[0042] Optionally, in order to achieve sliding cooperation between the lifting part 32 and the substrate 10 in the third direction, the substrate 10 is provided with a groove at the position corresponding to the lifting part 32, and the lifting part 32 is limited in the groove and slides in the third direction.

[0043] In this embodiment, five cell support members 30 are provided. In other embodiments, the number of cell support members 30 can be adjusted appropriately according to actual needs, and is not limited here.

[0044] Optionally, such as Figure 2 As shown, each end of the battery cell support 30 is provided with two rotating rods 41, one of which and the other are connected to the two ends of the same slider 42 to ensure that the two ends of the slider 42 are subjected to uniform force.

[0045] Optionally, such as Figure 1 and Figure 2 As shown, the substrate 10 has two clearance grooves 11 spaced apart along the second direction. The clearance grooves 11 extend along the first direction, and the rotating rod 41 located at the same end of the cell support 30 passes through the clearance grooves 11. With the above arrangement, several cross-scissor assemblies 40 can be concealed inside the substrate 10, saving the space occupied by the tooling.

[0046] Optionally, such as Figure 3 and Figure 4As shown, the end plate support assembly 20 includes a support member 21 and two locking components 22 connected to the support member 21. The two locking components 22 are respectively locked to both ends of the end plate. The support member 21 extends along a second direction and includes a second support portion 211 and a sliding portion 212. The sliding portion 212 is slidably engaged with the corresponding side of the substrate 10 and locked by a first locking member. The first locking member can abut against or release the substrate 10. With the above configuration, the first locking member is threadedly connected to the sliding portion 212. When the first locking member abuts against the substrate 10, the position of the support member 21 is fixed. When the first locking member is released, the position of the support member 21 can be adjusted according to the position of the end plate.

[0047] Optionally, the top height of the locking assembly 22 is adjustable. This allows for adaptation to different end plate heights.

[0048] Optionally, such as Figure 4 and Figure 5 As shown, the locking assembly 22 includes a connector 221 and a base 222. The connector 221 includes a connecting part 2211 and an adjusting part 2212. The connecting part 2211 is connected to the end plate. The adjusting part 2212 passes through the support member 21 and the base 222. At least two first locking holes 2223 are opened on the base 222. The adjusting part 2212 has a second locking hole 22121 (which is obscured and not marked). The second locking hole 22121 can selectively be aligned with any of the first locking holes 2223. The second locking member passes through the aligned first locking holes 2223 and the second locking hole 22121 in sequence and locks itself with the base 222. With the above settings, taking the opening of two first lock holes 2223 as an example, when the second lock hole 22121 is directly opposite the lowermost first lock hole 2223, the height of the connector 221 is relatively low. The second locking member is removed, the connector 221 is raised, so that the second lock hole 22121 is directly opposite the higher first lock hole 2223, and then the second locking member is installed in place to realize the raising operation of the connector 221, thereby realizing the connection of end plates of different heights.

[0049] Optionally, the base 222 includes a main body 2221 and a stop 2222. The main body 2221 is U-shaped, and the stop 2222 is connected between the two sides of the main body 2221. The adjusting part 2212 is inserted into the main body 2221 and has a protruding limiting part 2213, which is located below the stop 2222. With the above arrangement, the stop 2222 can limit the upward adjustment of the connecting member 221, so that the first locking hole 2223 and the second locking hole 22121 can be quickly aligned.

[0050] Optionally, the positions of the two locking components 22 are adjustable in the second direction. Specifically, a plurality of threaded holes are spaced apart on the top surface of the second support portion 211 along the second direction, and a through hole extending in the third direction is provided on the connecting portion 2211. The connecting portion 2211 can slide along the support member 21 so that the through hole can selectively face any of the threaded holes. The third locking member passes through the facing through hole and the threaded hole and locks with the second support portion 211.

[0051] Optionally, such as Figure 3 As shown, the end plate support assembly 20 also includes a digital display measuring ruler 23, which is installed at the end of the support member 21. With the above arrangement, when the displayed values ​​of the two digital display measuring rulers 23 are the same, it indicates that the two end plate support assemblies 20 are in the center position of the substrate 10, thereby ensuring that the battery module is placed in the center position relative to the substrate 10.

[0052] This embodiment also provides a vibration testing device, including the aforementioned vibration testing fixture and a vibration table, with the vibration testing fixture mounted on the vibration table. The aforementioned vibration testing device, by employing the aforementioned vibration testing fixture, can adapt to the loading and clamping requirements of two types of battery modules, is simple to operate, and can quickly ensure that the battery module is centered.

[0053] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A vibration testing fixture for fixing a battery module, the battery module comprising a cell assembly and two end plates, the cell assembly extending along a first direction, and each end plate being provided with one of the end plates, characterized in that, The vibration testing fixture includes: base(10); Two end plate support assemblies (20) are arranged at intervals along the first direction. Each end plate support assembly (20) is slidably engaged with the base plate (10) in the first direction and can be locked at any position on the sliding path. The end plate support assembly (20) is used to support the end plate and can be fixed with the end plate at the corresponding end. A plurality of battery cell support members (30) are arranged side by side along the first direction. Each battery cell support member (30) includes a first support part (31) and a lifting part (32) connected together. The first support part (31) extends along the second direction. The lifting part (32) is connected to the bottom of the first support part (31) and slides in a third direction with the substrate (10). When the lifting part (32) rises, it forms receiving grooves (33) on both sides. The first direction, the second direction and the third direction are perpendicular to each other. A cross-scissor assembly (40) and a base (50) are provided. The base (50) is located below the substrate (10) and is used to fix it to the vibration table. The cross-scissor assembly (40) and the cell support (30) are arranged in a one-to-one correspondence. The cross-scissor assembly (40) includes two pivotally connected rotating rods (41). The bottom of one of the rotating rods (41) is pivotally connected to the base (50). The top of both rotating rods (41) is provided with sliders (42). The sliders (42) slide in a first direction with the substrate (10). The sliders (42) can be accommodated in the corresponding receiving groove (33) to lift the first support (31), or be located on the side of the corresponding cell support (30) so that the first support (31) slides down to be flush with the slider (42).

2. The vibration testing fixture according to claim 1, characterized in that, Each end of the cell support member (30) is provided with two rotating rods (41), wherein one of the rotating rods (41) at one end and the other of the rotating rods (41) at the other end are respectively connected to the two ends of the same slider (42).

3. The vibration testing fixture according to claim 2, characterized in that, The substrate (10) has two clearance grooves (11) spaced apart along the second direction. The clearance grooves (11) extend along the first direction. The rotating rod (41) located at the same end of the cell support (30) passes through the clearance grooves (11).

4. The vibration testing fixture according to any one of claims 1-3, characterized in that, The end plate support assembly (20) includes a support member (21) and two locking assemblies (22) connected to the support member (21). The two locking assemblies (22) are respectively locked to both ends of the end plate. The support member (21) extends along the second direction. The support member (21) includes a second support portion (211) and a sliding portion (212). The sliding portion (212) slides and engages with the corresponding side of the substrate (10) and is locked by a first locking member. The first locking member can abut against or release the substrate (10).

5. The vibration testing fixture according to claim 4, characterized in that, The two locking components (22) are adjustable in position in the second direction.

6. The vibration testing fixture according to claim 4, characterized in that, The top height of the locking assembly (22) is adjustable.

7. The vibration testing fixture according to claim 6, characterized in that, The locking assembly (22) includes a connector (221) and a base (222). The connector (221) includes a connecting part (2211) and an adjusting part (2212). The connecting part (2211) is connected to the end plate. The adjusting part (2212) passes through the support (21) and the base (222). The base (222) has at least two first locking holes (2223). The adjusting part (2212) has a second locking hole (22121). The second locking hole (22121) can selectively be opposite to any of the first locking holes (2223). The second locking member passes through the opposite first locking holes (2223) and the second locking hole (22121) in sequence and locks itself with the base (222).

8. The vibration testing fixture according to claim 7, characterized in that, The base (222) includes a main body (2221) and a stop (2222). The main body (2221) is U-shaped. The stop (2222) is connected between the two sides of the main body (2221). The adjustment part (2212) is inserted into the main body (2221) and a limiting part (2213) is protruding. The limiting part (2213) is located on the lower side of the stop (2222).

9. The vibration testing fixture according to claim 4, characterized in that, The end plate support assembly (20) also includes a digital measuring ruler (23), which is installed at the end of the support member (21).

10. A vibration testing device, characterized in that, It includes a vibration table and a vibration testing fixture as described in any one of claims 1-9, wherein the vibration testing fixture is mounted on the vibration table.

Images