Battery cell vibration test tool

Abstract

The utility model discloses a battery cell vibration test tool, and belongs to the technical field of battery modules. The testing tool comprises a base, a limiting part and a fixing part. A plurality of connecting holes penetrating in the thickness direction of the base are formed in the base; the limiting part comprises a cover plate and a plurality of limiting plates, the plurality of limiting plates are stacked on the base, limiting grooves are formed in the upper and lower surfaces of the limiting plates, the limiting grooves are used for placing battery cells, openings are formed in the outer edges of the limiting plates, the openings are connected with the limiting grooves, the openings are used for placing battery cell electrodes, and the cover plate is fixed on the limiting plates; the fixing part comprises at least two fixing rods and a pressing plate, the two fixing rods are connected with the base and located on the two sides of the limiting part respectively, the pressing plate is in a long strip shape, the two ends of the pressing plate are connected with the two fixing rods respectively, and the bottom of the pressing plate abuts against the cover plate so that the limiting part can be locked between the pressing plate and the base. The testing tool can carry out vibration testing on a plurality of battery cells at a time, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a battery core vibration testing tool. Background Art

[0002] In recent years, electric vehicles, robots, satellites, etc. have been vigorously developed in accordance with the country, and high-performance secondary battery modules that can be repeatedly charged are being actively developed. Secondary battery modules are easily subject to vibration, falling and other external impacts, which can cause problems such as cracking and short circuiting of the battery cells, and then cause dangers such as explosion and combustion. Therefore, vibration, falling and other external impacts are one of the main challenges in the development of ensuring the stability of secondary battery modules. In order to confirm the stability of the secondary battery module, it is usually necessary to test the performance of the battery cell such as vibration or impact, and the battery cell body needs to be fixed using a test fixture during the test. Existing test fixtures can usually only clamp a single battery cell, but the vibration test of the battery cell requires testing multiple battery cells. Therefore, the use of the above-mentioned test fixture requires multiple operations, and its work efficiency is low. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a battery cell vibration test tool, which can perform vibration tests on multiple battery cells at one time and has high working efficiency.

[0004] The technical solution of the utility model is as follows:

[0005] A battery cell vibration test fixture includes a base, a limiting part and a fixing part. The base is provided with a plurality of connection holes penetrating along the thickness direction thereof; the limiting part includes a cover plate and a plurality of limiting plates, wherein the plurality of limiting plates are stacked on the base, and the upper and lower surfaces of the limiting plates are provided with limiting grooves, the limiting grooves are used to place battery cells, the outer edge of the limiting plate is provided with an opening, the opening is connected to the limiting groove, the opening is used to place the battery cell electrode, and the cover plate is fixed to the limiting plate; the fixing part includes a fixing rod and a clamping plate, wherein the number of the fixing rods is at least two, the two fixing rods are connected to the base, and are respectively located on both sides of the limiting part, the clamping plate is in the shape of a long strip, the two ends of the clamping plate are respectively connected to the two fixing rods, and the bottom of the clamping plate abuts against the cover plate to lock the limiting part between the clamping plate and the base.

[0006] Specifically, the number of the fixing rods is four, and two of them are located on both sides of the limiting portion, and the number of the pressing plates is two, and they are respectively connected to the two fixing rods.

[0007] Preferably, the inner wall of the connecting hole is provided with an internal thread, the outer surface of the fixing rod is provided with an external thread, and the fixing rod is threadedly connected to the connecting hole.

[0008] Specifically, both ends of the clamping plate are provided with through holes penetrating along its thickness direction, the clamping plate is connected to the fixing rod through the through holes, a nut is installed on the fixing rod, the nut is located above the clamping plate and the bottom surface is against the clamping plate.

[0009] Preferably, the through hole is in the shape of an elongated strip, and the through hole extends along the length direction of the pressing plate.

[0010] Preferably, threaded holes are arranged on the peripheral side of the limiting plate, and bolts are also provided, and the bolts penetrate through the threaded holes to connect and fix the plurality of limiting plates.

[0011] Preferably, the limiting plate is rectangular in shape, and the bottom surface and the top surface of the limiting plate are both planes.

[0012] Preferably, the plurality of connection holes are regularly arranged on the base.

[0013] Preferably, the area of ​​the cover plate is larger than the area of ​​the limiting plate, and the cover plate completely covers the limiting plate.

[0014] The beneficial effects of the utility model are:

[0015] A plurality of limit plates are arranged on the base, and limit grooves are provided on the upper and lower parts of the limit plates. The limit grooves are used to place the battery cells. The limit plates are stacked on the base, and a cover plate is fixed on the top of the limit plates. The plurality of limit plates are fixed by a pressure plate, so that a plurality of battery cells can be installed on the base. Therefore, the test fixture can perform vibration tests on a plurality of battery cells at a time, and the working efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0017] In the attached picture:

[0018] Figure 1 This is the front view of the battery cell vibration test tooling of the utility model;

[0019] Figure 2 It is a top view of the battery cell vibration test fixture of the utility model;

[0020] Figure 3 It is a cross-sectional view of the limiting part in the battery cell vibration test tooling of the utility model.

[0021] The components represented by the reference numerals are:

[0022] 1. Limiting plate, 2. Cover plate, 3. Fixing rod, 4. Connecting hole, 5. Base, 6. Pressing plate, 7. Through hole, 8. Nut, 9. Vibrating device, 10. Limiting groove, 11. Opening. DETAILED DESCRIPTION

[0023] See also Figures 1 to 3 The utility model provides a battery core vibration test tool, including a base 5, a limiting part and a fixing part.

[0024] The base 5 is provided with a plurality of connection holes 4 penetrating along the thickness direction thereof. Optionally, the shape of the base 5 may be circular or square. In addition, the bottom of the base 5 may be used to fix the vibration device or the base 5 may be connected to the vibration device.

[0025] The limiting part includes a cover plate 2 and a plurality of limiting plates 1, wherein the plurality of limiting plates 1 are stacked on the base 5, and the upper and lower surfaces of the limiting plates 1 are provided with limiting grooves 10, and the limiting grooves 10 are used to place the battery cells, that is, two limiting plates 1 clamp one battery cell together. It should be noted that the number of limiting plates 1 can be set according to the number of battery cells. The outer edge of the limiting plate 1 is provided with an opening 11, and the opening 11 is connected to the limiting groove 10, and the opening 11 is used to place the battery cell electrode. The cover plate 2 is fixed on the limiting plate 1, and the limiting plate 1 is fixed on the base 5 through the cover plate 2.

[0026] The fixing part includes a fixing rod 3 and a clamping plate 6, wherein the number of fixing rods 3 is at least two, the two fixing rods 3 are connected to the base 5, and are respectively located on both sides of the limiting part, the clamping plate 6 is in the shape of a long strip, the two ends of the clamping plate 6 are respectively connected to the two fixing rods 3, and the bottom of the clamping plate 6 abuts against the cover plate 2 to lock the limiting part between the clamping plate 6 and the base 5. Specifically, the number of fixing rods 3 is four, and two are located on both sides of the limiting part, and the number of clamping plates 6 is two, and they are respectively connected to the two fixing rods 3, so as to increase the stability of the limiting part on the base 5.

[0027] In addition, the area of ​​the cover plate 2 is larger than the area of ​​the limiting plate 1 , and the cover plate 2 completely covers the limiting plate 1 , thereby increasing the contact area between the cover plate 2 and the pressing plate 6 to improve the stability of the limiting portion.

[0028] A plurality of limit plates 1 are arranged on the base 5. The limit plates 1 have limit grooves on the upper and lower parts. The limit grooves are used to place battery cells. The limit plates 1 are stacked on the base 5. A cover plate 2 is fixed on the top of the limit plates 1, and the plurality of limit plates 1 are fixed by a pressure plate, so that a plurality of battery cells can be installed on the base 5. Therefore, the test tooling can perform vibration tests on a plurality of battery cells at a time, and the working efficiency is high.

[0029] Optionally, the inner wall of the connecting hole 4 is provided with an internal thread, the outer surface of the fixing rod 3 is provided with an external thread, and the fixing rod 3 is threadedly connected to the connecting hole 4, so as to facilitate the installation of the fixing rod 3 on the base 5.

[0030] In one embodiment, both ends of the clamping plate 6 are provided with through holes 7 penetrating along the thickness direction thereof. The clamping plate 6 is connected to the fixing rod 3 through the through holes 7. A nut 8 is installed on the fixing rod 3. The nut 8 is located above the clamping plate 6 and the bottom surface abuts against the clamping plate 6. The clamping plate 6 is locked by the nut 8, so that the clamping plate 6 abuts against the cover plate 2 for easy fixation.

[0031] Specifically, the through hole 7 is in the shape of an elongated strip, and the through hole 7 extends along the length direction of the pressing plate 6 , so that the distance between the two fixing rods 3 can be conveniently adjusted according to the width of the limiting plate 1 .

[0032] Optionally, in order to facilitate the connection and fixation of the plurality of limiting plates 1 , threaded holes are provided on the circumferential side of the limiting plate 1 , and bolts are also provided, and the bolts penetrate through the threaded holes to connect and fix the plurality of limiting plates 1 .

[0033] Optionally, the limiting plate 1 is rectangular in shape, and the bottom surface and the top surface of the limiting plate 1 are both planes, so that the structure is more reasonable and the plurality of limiting plates 1 can be kept in a vertical state.

[0034] In addition, a plurality of connection holes 4 are regularly arranged on the base 5 to facilitate adjustment of the spacing between the fixing rods 3. Specifically, the spacing between adjacent connection holes 4 can be set to 1 cm.

[0035] The above are only preferred implementations of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery cell vibration test tool, characterized in that: include: A base (5), wherein the base (5) is provided with a plurality of connection holes (4) penetrating along the thickness direction of the base (5); A limiting portion, comprising a cover plate (2) and a plurality of limiting portions (1), wherein the plurality of limiting portions (1) are stacked on the base (5), and the upper and lower surfaces of the limiting portion (1) are both provided with limiting grooves, the limiting grooves are used to place the battery cell, the outer edge of the limiting portion (1) is provided with an opening, the opening is connected to the limiting groove, the opening is used to place the battery cell electrode, and the cover plate (2) covers the limiting portion (1); The fixing part comprises a fixing rod (3) and a clamping plate (6), wherein the number of the fixing rods (3) is at least two, the two fixing rods (3) are connected to the base (5), and are respectively located on both sides of the limiting part, the clamping plate (6) is in the shape of a long strip, the two ends of the clamping plate (6) are respectively connected to the two fixing rods (3), and the bottom of the clamping plate (6) abuts against the cover plate (2) to lock the limiting part between the clamping plate (6) and the base (5).

2. The battery cell vibration test tool according to claim 1, characterized in that: The number of the fixing rods (3) is four, and two of them are located on both sides of the limiting portion. The number of the pressing plates (6) is two, and they are respectively connected to the two fixing rods (3).

3. The battery cell vibration test tool according to claim 2, characterized in that: The inner wall of the connecting hole (4) is provided with an internal thread, the outer surface of the fixing rod (3) is provided with an external thread, and the fixing rod (3) is threadedly connected to the connecting hole (4).

4. The battery cell vibration test tool according to claim 1, characterized in that: Through holes (7) are provided at both ends of the clamping plate (6) and penetrate along the thickness direction thereof. The clamping plate (6) is connected to the fixing rod (3) via the through holes (7). A nut (8) is installed on the fixing rod (3). The nut (8) is located above the clamping plate (6) and its bottom surface abuts against the clamping plate (6).

5. The battery cell vibration test fixture according to claim 4, characterized in that: The through hole (7) is in the shape of an elongated strip, and the through hole (7) extends along the length direction of the pressing plate (6).

6. The battery cell vibration test tool according to claim 1, characterized in that: The limiting portion (1) is provided with a threaded hole on its circumferential side and also includes a bolt, which penetrates through the threaded hole to connect and fix a plurality of the limiting portions (1).

7. The battery cell vibration test tool according to claim 1, characterized in that: The limiting portion (1) is in the shape of a rectangle, and the bottom surface and the top surface of the limiting portion (1) are both planes.

8. The battery cell vibration test tool according to claim 1, characterized in that: The area of ​​the cover plate (2) is larger than the area of ​​the limiting portion (1), and the cover plate (2) completely covers the limiting portion (1).

9. The battery cell vibration test tool according to claim 1, characterized in that: The plurality of connection holes (4) are regularly arranged on the base (5).

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