A clamp for battery cell module vibration test

Abstract

The utility model discloses a kind of for battery module vibration test fixture, including L type fixture assembly and the Z axis clamping assembly of being set in L type fixture assembly top, L type fixture assembly is arranged around battery module in pairs, and spacing adjusting assembly is equipped between paired L type fixture assembly, L type fixture assembly includes clamping flat plate, clamping flat plate is fixed in vibration platform top by bolt, clamping flat plate is close to the recess of one end of battery module, vertical clamping plate bottom end is inserted into recess, adjusting peg one end is connected to vertical clamping plate bottom end inside through clamping flat plate interior screw hole, vertical clamping plate side surface is pasted with battery module side surface, the device is closely pasted with module side surface by the vertical clamping plate of paired L type fixture assembly in horizontal direction, stable pressure holds are formed by long strip and threaded sleeve in Z axis direction, realize the multidimensional constraint of YXZ axis, guarantee the authenticity and accuracy of vibration test data.

Description

Technical Field

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

[0002] Battery cells and modules typically do not have mounting holes and lack matching fixtures, making it impossible to attach them to a vibration table for vibration testing.

[0003] When staff conduct vibration tests on battery cell modules, they use ordinary clamping strips to fix the sample to be tested. This can only ensure a rigid connection in the Z-axis direction, but the horizontal Y and X axes cannot be fixed, which has a significant impact on the test results. Therefore, a fixture for vibration testing of battery cell modules is proposed to address the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A fixture for vibration testing of battery cell modules includes an L-shaped fixture assembly and a Z-axis clamping assembly disposed on top of the L-shaped fixture assembly. The L-shaped fixture assemblies are arranged in pairs around the battery cell module, and a spacing adjustment assembly is installed between the pairs of L-shaped fixture assemblies. The L-shaped fixture assembly includes a clamping plate, which is fixed to the top of the vibration platform by bolts. The clamping plate has a groove at one end near the battery cell module, and the bottom end of a vertical clamping plate is inserted into the groove. One end of an adjusting bolt passes through an internal threaded hole in the clamping plate and connects to the inside of the bottom end of the vertical clamping plate. The side of the vertical clamping plate is in contact with the side of the battery cell module. The spacing adjustment assembly includes a limiting rod and an adjusting rod disposed between a pair of vertical clamping plates. The side of the limiting rod is slidably connected to the through hole inside the vertical clamping plate. The limiting rod has a locking groove inside both ends. A lifting plate is installed inside the locking groove. A buffer spring is provided between the lifting plate and the inner side of the bottom end of the locking groove. A locking block is installed on the top of the lifting plate. The adjusting rod consists of a left threaded rod and a right threaded rod. A turntable is installed at the left end of the right threaded rod. The turntable rotates around the limiting groove inside the right end of the left threaded rod. The left threaded rod and the right threaded rod are respectively connected to the threaded holes inside the pair of vertical clamping plates through threads.

[0005] Preferably, the top of the locking block has an arc-shaped structure.

[0006] Preferably, the Z-axis clamping assembly includes a positioning threaded rod that is vertically fixed to the top of the vertical clamping plate. An elongated pressure strip is installed between the positioning threaded rods on the left and right sides of the battery cell module. The threaded sleeve is pressed down along the positioning threaded rod to the top side of the elongated pressure strip. The elongated pressure strip has a limiting groove inside both ends. The inner sidewall of the limiting groove is fitted and connected to the outer side of the positioning threaded rod.

[0007] Compared with the prior art, the beneficial effects of this utility model are: (1) In the horizontal direction, the vertical clamping plates of the paired L-shaped clamping components are closely attached to the side of the module, and in the Z-axis direction, the long pressure strip and the threaded sleeve form a stable pressure, realizing multi-dimensional constraints of the YXZ axes, and ensuring the authenticity and accuracy of vibration test data.

[0008] (2) The right threaded rod rotates around the left threaded rod via a turntable. The left threaded rod and the right threaded rod can rotate separately, which makes it easy to adjust the spacing between the pairs of vertical clamping plates, so that the clamp can flexibly adapt to battery cell modules of different lengths and improve the practicality of the device. Attached Figure Description

[0009] 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.

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the L-shaped clamp assembly of this utility model; Figure 3 This is a schematic diagram of the front cross-section structure of this utility model; Figure 4 This utility model Figure 3 A schematic diagram of the enlarged structure of A.

[0011] The reference numerals in the figure are as follows: L-shaped clamp assembly 1, clamping plate 11, vertical clamping plate 12, adjusting bolt 13, battery cell module 2, vibration platform 3, positioning threaded rod 41, long pressure bar 42, threaded sleeve 43, limiting rod 51, locking groove 52, lifting plate 53, buffer spring 54, locking block 55, left threaded rod 61, right threaded rod 62, turntable 63. Detailed Implementation

[0012] 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.

[0013] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0014] Please see Figure 1-4 This utility model provides an embodiment of a fixture for vibration testing of a battery cell module, comprising an L-shaped fixture assembly 1 and a Z-axis clamping assembly disposed on the top of the L-shaped fixture assembly 1. The L-shaped fixture assemblies 1 are arranged in pairs around the battery cell module 2, and a spacing adjustment assembly is installed between the pairs of L-shaped fixture assemblies 1. The L-shaped fixture assembly 1 includes a clamping plate 11, which is fixed to the top of the vibration platform 3 by bolts. The clamping plate 11 has a groove at one end near the battery cell module 2, and the bottom end of a vertical clamping plate 12 is inserted into the groove. One end of an adjusting bolt 13 passes through the internal threaded hole of the clamping plate 11 and connects to the inside of the bottom end of the vertical clamping plate 12. The side of the vertical clamping plate 12 is in contact with the side of the battery cell module 2.

[0015] The spacing adjustment assembly includes a limiting rod 51 and an adjusting rod disposed between a pair of vertical clamping plates 12. The side of the limiting rod 51 is slidably connected to the internal through hole of the vertical clamping plate 12. The limiting rod 51 has a locking groove 52 at both ends. A lifting plate 53 is installed inside the locking groove 52. A buffer spring 54 is provided between the lifting plate 53 and the inner side of the bottom end of the locking groove 52. A locking block 55 is installed on the top of the lifting plate 53. The top of the locking block 55 has an arc-shaped structure. When the limiting rod 51 enters the internal through hole of the vertical clamping plate 12, it presses down the locking block 55. The locking block 55 descends and compresses the buffer spring 54, allowing the limiting rod 51 to quickly enter the internal through hole of the vertical clamping plate 12.

[0016] The adjusting rod consists of a left threaded rod 61 and a right threaded rod 62. A turntable 63 is mounted on the left end of the right threaded rod 62. The turntable 63 rotates around the inner limiting groove on the right end of the left threaded rod 61. The left threaded rod 61 and the right threaded rod 62 are respectively connected to the inner threaded holes of the paired vertical clamping plates 12 by threads. The right threaded rod 62 rotates around the left threaded rod 61 through the turntable 63. The left threaded rod 61 and the right threaded rod 62 can rotate separately, which facilitates the adjustment of the spacing between the paired vertical clamping plates 12.

[0017] The Z-axis clamping assembly includes a positioning threaded rod 41 that is vertically fixed to the top of the vertical clamping plate 12. An elongated pressure strip 42 is installed between the positioning threaded rods 41 on the left and right sides of the battery cell module 2. The threaded sleeve 43 is pressed down along the positioning threaded rod 41 to the top side of the elongated pressure strip 42. The elongated pressure strip 42 has a limiting groove inside at both ends. The inner sidewall of the limiting groove is in close contact with the outer side of the positioning threaded rod 41.

[0018] First, adjust the vibration platform 3 to a horizontal state. Then, place the battery cell module 2 to be tested stably in the clamping area on the top of the vibration platform 3. Take the pair of L-shaped clamp components 1 and fix the clamping plates 11 of each component to the preset installation positions on the top of the vibration platform 3 with bolts. Ensure that the pair of clamping plates 11 are located on the outer sides of the battery cell module 2 to be tested, such as the left and right sides, or the front and back sides.

[0019] Then, operate the spacing adjustment assembly. First, pass the limiting rod 51 through the internal through hole of the paired vertical clamping plates 12, so that the limiting rod 51 spans between the paired vertical clamping plates 12. The locking blocks 55 inside both ends of the limiting rod 51 pop out under the elastic force of the buffer spring 54 and engage with the outside of the vertical clamping plates 12, initially limiting the spacing between the paired vertical clamping plates 12. Next, rotate the adjusting rod. Since the adjusting rod consists of a left threaded rod 61 and a right threaded rod 62, and both are threadedly connected to the internal threaded holes of the paired vertical clamping plates 12, the right threaded rod 62 will rotate through the turntable. 63 surrounds the left threaded rod 61, and the left threaded rod 61 and the right threaded rod 62 can rotate separately. By rotating the left threaded rod 61 or the right threaded rod 62, the pair of vertical clamping plates 12 are pushed closer or further away until the vertical clamping plates 12 can be installed in pairs inside the clamping plate 11, and the side of the vertical clamping plate 12 is tightly attached to the side of the cell module 2. One end of the adjusting bolt 13 is passed through the internal threaded hole of the clamping plate 11 until its end is tightened, thereby fixing the position of the vertical clamping plate 12 and completing the clamping and fixing of cell modules 2 of different widths in the XY axis direction.

[0020] Take the elongated pressure strip 42 and fit its two end limiting grooves onto the positioning threaded rods 41 located on the left and right sides or front and back sides of the battery cell module 2, so that the bottom side of the elongated pressure strip 42 fits against the top of the battery cell module 2. Then rotate the threaded sleeve 43 downward along the positioning threaded rod 41 until the bottom side of the threaded sleeve 43 presses against the top side of the elongated pressure strip 42. The pressure of the threaded sleeve makes the elongated pressure strip stably hold the battery cell module, thus completing the fixation in the Z-axis direction.

[0021] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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. Such 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 this utility model.

Claims

1. A fixture for vibration testing of battery cell modules, characterized in that: The device includes an L-shaped clamp assembly (1) and a Z-axis clamping assembly set on top of the L-shaped clamp assembly (1). The L-shaped clamp assemblies (1) are arranged in pairs around the cell module (2), and a spacing adjustment assembly is installed between the pairs of L-shaped clamp assemblies (1). The L-shaped clamp assembly (1) includes a clamping plate (11), which is fixed to the top of the vibration platform (3) by bolts. The clamping plate (11) has a groove at one end near the cell module (2), and the bottom end of the vertical clamping plate (12) is inserted into the groove. One end of the adjusting bolt (13) passes through the internal threaded hole of the clamping plate (11) and is connected to the inside of the bottom end of the vertical clamping plate (12). The side of the vertical clamping plate (12) is in contact with the side of the cell module (2). The spacing adjustment assembly includes a limiting rod (51) and an adjusting rod disposed between a pair of vertical clamping plates (12). The side of the limiting rod (51) is slidably connected to the through hole inside the vertical clamping plate (12). The limiting rod (51) has a locking groove (52) inside both ends. The locking groove (52) is equipped with a lifting plate (53). A buffer spring (54) is provided between the lifting plate (53) and the inner side of the bottom end of the locking groove (52). The lifting plate (53) is equipped with a locking block (55) on the top. The adjusting rod is composed of a left threaded rod (61) and a right threaded rod (62). The left end of the right threaded rod (62) is equipped with a turntable (63). The turntable (63) rotates around the limiting groove inside the right end of the left threaded rod (61). The left threaded rod (61) and the right threaded rod (62) are respectively connected to the threaded holes inside the pair of vertical clamping plates (12) by threads.

2. The fixture for vibration testing of battery cell modules according to claim 1, characterized in that: The top of the locking block (55) has an arc-shaped structure.

3. The fixture for vibration testing of battery cell modules according to claim 1, characterized in that: The Z-axis clamping assembly includes a positioning threaded rod (41) that is vertically fixed to the top of the vertical clamping plate (12). An elongated pressure strip (42) is installed between the positioning threaded rods (41) on the left and right sides of the battery cell module (2). The threaded sleeve (43) is pressed down along the positioning threaded rod (41) to the top side of the elongated pressure strip (42). The elongated pressure strip (42) has a limiting groove inside at both ends. The inner sidewall of the limiting groove is in close contact with the outer side of the positioning threaded rod (41).

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