Lithium ion cell vibration test tool

Abstract

The utility model belongs to the technical field of lithium ion battery cell vibration testing, and particularly relates to a lithium ion battery cell vibration testing tool which comprises a testing tool base, a battery cell fixing tool is arranged in the testing tool base, and a movable bolt is arranged at the top of the battery cell fixing tool. The movable plug pin is also clamped to the top of the test tool base, a lithium ion battery cell and a second cross clamping groove are placed in the battery cell fixing tool, and the second cross clamping groove is formed in the surface, close to the side of the test tool base, of the battery cell fixing tool; the forming shape of the second cross clamping groove is matched with the appearance of the movable bolt, a clamping support is arranged in the battery cell fixing tool, and the clamping support is used for fixing the installation test of the lithium ion battery cell; according to the testing tool, only the battery cell fixing tool needs to be integrally disassembled and then installed on the base, multiple times of disassembly and installation of bolts are not needed, axial turning of the battery cell is achieved, and the testing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium ion battery cell vibration testing, and in particular relates to a lithium ion battery cell vibration testing tool. Background Art

[0002] The existing patent discloses a simple module test fixture with patent publication number CN221100986U. It mainly points out that in the existing technology, the installation method of the welded module is too complicated and requires additional welding equipment and special personnel to operate, which greatly increases the testing cost. The problem is solved by adopting a welding-free test fixture.

[0003] However, when we actually used it, we found that there were still some problems in the use of this solution;

[0004] It is important to note that during and after the development of lithium-ion cells, especially new products, a certain number of cells need to be extracted for vibration testing to ensure that they meet the vibration test requirements of the lithium-ion battery module and verify their safety performance. During the vibration test, the lithium-ion battery cells need to be fixed on the vibration equipment. Currently, the axial direction of the lithium-ion cells cannot be changed without adjusting the vibration table. During the vibration test, the test operation in the X, Y, and Z directions of the cells can only be achieved by changing the direction of the vibration table or re-disassembling and re-installing the lithium-ion cells, which is relatively cumbersome and affects the test efficiency.

[0005] Therefore, we urgently need to provide a lithium-ion battery cell vibration test fixture that can be used to test the lithium-ion battery cell without having to disassemble and install the lithium-ion battery cell or change the direction of the vibration table. Utility Model Content

[0006] The purpose of the utility model is to provide a lithium-ion battery cell vibration test tool, which can realize the testing of multiple batteries at the same time and complete the test without disassembling and reinstalling the lithium-ion battery cells.

[0007] The technical solutions adopted by this utility model are as follows:

[0008] A lithium-ion battery cell vibration test fixture comprises: a test fixture base, a battery cell fixing fixture disposed inside the test fixture base, a movable latch disposed on the top of the battery cell fixing fixture, the movable latch also being snapped onto the top of the test fixture base, and a lithium-ion battery cell placed inside the battery cell fixing fixture;

[0009] A second cross-shaped slot is provided on the surface of the battery cell fixing tooling near the test tooling base, the opening shape of the second cross-shaped slot matches the shape of the movable pin, a snap-fit bracket is provided inside the battery cell fixing tooling, the snap-fit bracket is used to fix the installation test of the lithium-ion battery cell, a bolt is provided on the top of the snap-fit bracket, and a first battery cell bracket bolt hole is also provided on the surface of the battery cell fixing tooling;

[0010] A test tool base back plate is installed at the rear of the test tool base, test tool base side plates are installed on both sides of the test tool base, and a test tool base bottom plate is installed at the bottom of the test tool base. The test tool base back plate, test tool base side plates and test tool base bottom plate are jointly spliced to form the test tool base.

[0011] In some embodiments, the test fixture base and the battery cell fixing fixture are fixed by a movable pin, and the cross-sectional shape of the movable pin is an I-shape.

[0012] In some embodiments, a battery cell fixing bracket plate is provided on the top of the snap-fit bracket, a second battery cell bracket bolt hole is provided on the surface of the battery cell fixing bracket plate, and the battery cell fixing bracket plate is detachably mounted on the top of the snap-fit bracket, and the side of the battery cell fixing bracket plate close to the battery cell fixing tooling is overlapped with the inner side of the battery cell fixing tooling.

[0013] In some embodiments, a fixing pin is provided on the outer surface of the back plate of the test tooling base, and a first cross-shaped slot is provided on the outer surface of the side plate of the test tooling base. The first cross-shaped slot is opened in a cross shape, and the height of the side plate of the test tooling base is greater than the upper and lower opening path length of the first cross-shaped slot. The fixing pin is also installed at the bottom of the bottom plate of the test tooling base.

[0014] In some embodiments, the second cross-shaped slot is also cross-shaped and is opened on the outer surface of the battery cell fixing tool, and is used to fix the connection between the test tool base and the bottom of the battery cell fixing tool.

[0015] In some embodiments, screw holes are provided on the lower surface of the bottom plate of the test fixture base, and four screw holes form a group and are arranged at the corner position of the bottom plate of the test fixture base. Reinforcing ribs are also provided at the bottom of the bottom plate of the test fixture base.

[0016] In some embodiments, the reinforcing ribs and the bottom plate of the test fixture base are integrally formed, and a straight slot is provided at the bottom of the bottom plate of the test fixture base. There are four straight slots, each corresponding to a protrusion on the bottom plate of the test fixture base.

[0017] The technical effects achieved by this utility model are:

[0018] 1. This test fixture can achieve the effect of testing multiple battery cells at the same time through battery cell fixing brackets of different sizes;

[0019] 2. This test fixture only requires the entire battery cell fixture to be disassembled and then installed on the base, without the need to remove the mounting bolts multiple times, thus achieving axial rotation of the battery cell and improving test efficiency;

[0020] 3. This test fixture can be disassembled and installed as a whole to fix the battery cells. The fixture for fixing the battery cells and the base are connected by slots and pins, which is simple and quick, thereby improving test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall main view of the test fixture bracket of the utility model;

[0022] Figure 2 This is a schematic diagram of the test fixture base of the utility model;

[0023] Figure 3 This is a schematic diagram of the battery cell fixing tooling of the present utility model;

[0024] Figure 4 This is a schematic diagram of the installation position of the bolt hole of the first battery cell bracket on the surface of the battery cell fixing tooling of the utility model;

[0025] Figure 5 This is a schematic diagram of the installation position of the second cross slot of the utility model on the surface of the battery cell fixing tool;

[0026] Figure 6 This is an enlarged structural diagram of the clamping bracket of the utility model;

[0027] Figure 7 This is a schematic diagram of the battery cell fixing bracket board of the present invention;

[0028] Figure 8 This is a schematic diagram of the specific shape and structure of the movable latch of the utility model;

[0029] Figure 9 This is a structural diagram of the test fixture base of the utility model after it is unfolded;

[0030] Figure 10 It is a schematic diagram of the enlarged structure of the lithium-ion battery cell of the present utility model.

[0031] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0032] 100. Test fixture base; 200. Battery cell fixing fixture; 300. Movable latch; 400. Lithium-ion battery cell; 101. Test fixture base back panel; 102. Test fixture base side panel; 103. Test fixture base bottom panel; 104. Fixing latch; 105. First cross slot; 106. Reinforcement rib; 107. Screw hole; 108. Straight slot; 201. Second cross slot; 202. Snap-fit bracket; 203. Bolt; 204. Bolt hole for first battery cell bracket; 205. Bolt hole for second battery cell bracket; 206. Battery cell fixing bracket plate. DETAILED DESCRIPTION

[0033] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0034] Example 1:

[0035] like Figure 1-10 As shown, the lithium-ion battery cell vibration test fixture includes a test fixture base 100, a battery cell fixing fixture 200 is provided inside the test fixture base 100, a movable latch 300 is provided on the top of the battery cell fixing fixture 200, and the movable latch 300 is also clamped on the top of the test fixture base 100. A lithium-ion battery cell 400 is placed inside the battery cell fixing fixture 200;

[0036] A second cross slot 201 is provided on the surface of the battery cell fixing tool 200 close to the test tool base 100. The shape of the second cross slot 201 matches the shape of the movable latch 300. A clamping bracket 202 is provided inside the battery cell fixing tool 200. The clamping bracket 202 is used to fix the installation test of the lithium-ion battery cell 400. A bolt 203 is provided on the top of the clamping bracket 202. A first battery cell bracket bolt hole 204 is also provided on the surface of the battery cell fixing tool 200.

[0037] The test tool base back panel 101 is installed at the rear of the test tool base 100, the test tool base side panels 102 are installed on both sides of the test tool base 100, and the test tool base bottom panel 103 is installed at the bottom of the test tool base 100. The test tool base back panel 101, the test tool base side panels 102 and the test tool base bottom panel 103 are spliced together to form the test tool base 100.

[0038] In this embodiment, by setting it up in this way, the connection between the test tool base 100 and the battery cell fixing tool 200 can be effectively guaranteed, and the orientation of the internal lithium-ion battery cell 400 can be quickly adjusted during use. The whole is connected in a plug-in manner, which speeds up the disassembly convenience without damaging the overall stability of the device.

[0039] like Figure 1-10 As shown, the test fixture base 100 and the battery cell fixing fixture 200 are fixed by a movable latch 300 , and the cross-sectional shape of the movable latch 300 is an I-shape.

[0040] In this embodiment, by such an arrangement, the movable pin 300 can serve as a single connecting piece to independently connect the test tool base 100 and the battery cell fixing tool 200. As a straight-through mortise and tenon sliding joint, it facilitates the connection between the test tool base 100 and the battery cell fixing tool 200, while also facilitating the use and disassembly of the device, effectively ensuring the device during use.

[0041] like Figure 1 、 Figure 3 、 Figure 6 、 Figure 7 As shown, a battery cell fixing bracket plate 206 is provided on the top of the snap-fit bracket 202, and a second battery cell bracket bolt hole 205 is provided on the surface of the battery cell fixing bracket plate 206. The battery cell fixing bracket plate 206 is detachably installed on the top of the snap-fit bracket 202, and the battery cell fixing bracket plate 206 is overlapped with the side close to the battery cell fixing tooling 200 and the inner side of the battery cell fixing tooling 200.

[0042] In this embodiment, by such a setting, the device can split and disassemble the snap bracket 202 during use. At the same time, we can replace the supporting structure of the snap bracket 202 itself to increase or decrease the number of lithium-ion battery cells 400, thereby ensuring the fixing effect of the lithium-ion battery cells 400 inside the battery cell fixing tool 200. At the same time, such a setting can also replace the contact material of the snap bracket 202, saving a certain amount of material replacement cost.

[0043] like Figure 2 As shown, a fixing pin 104 is provided on the outer surface of the back plate 101 of the test tooling base, and a first cross slot 105 is provided on the outer surface of the side plate 102 of the test tooling base. The first cross slot 105 is opened in a cross shape, and the height of the side plate 102 of the test tooling base is greater than the upper and lower opening path length of the first cross slot 105. The fixing pin 104 is also installed at the bottom of the bottom plate 103 of the test tooling base.

[0044] In this embodiment, by such a setting, the device can effectively ensure the installation stability between the test tool base 100 and the battery cell fixing tool 200 during use. At the same time, the length limit setting is provided to ensure that the device will not be dislocated during use.

[0045] like Figure 1 、 Figure 3 、 Figure 5 As shown, the second cross slot 201 is also cross-shaped and is opened on the outer surface of the battery cell fixing tool 200 for fixing the test tool base 100 and the bottom connection of the battery cell fixing tool 200 .

[0046] In this embodiment, by such a configuration, the device can be effectively connected to the test tool base 100 during use, and the configuration of the second cross slot 201 ensures the diversity of the connection between the battery cell fixing tool 200 and the test tool base 100.

[0047] like Figure 2 and Figure 9 As shown, screw holes 107 are provided on the lower surface of the test tool base bottom plate 103, and four screw holes 107 form a group and are arranged at the corner position of the test tool base bottom plate 103. The bottom of the test tool base bottom plate 103 is also provided with reinforcing ribs 106, and the reinforcing ribs 106 and the test tool base bottom plate 103 are integrally formed. Straight slots 108 are provided at the bottom of the test tool base bottom plate 103, and there are four straight slots 108, which correspond to the protrusions of the test tool base bottom plate 103 respectively.

[0048] In this embodiment, through such a setting, it can be found that during the use of the screw hole 107, it can be fixed on the detection table, and the test tool base 100 is set in a cross shape, and it can also be set as a folding structure. During the use process, through the setting of the straight slot 108, it can be effectively connected to the external structure, which greatly optimizes the disassembly time of the device.

[0049] The working principle of the present invention is as follows: the test fixture base 100 is fixed on the test bench of the vibration equipment through the screw hole 107 and the straight slot 108, the lithium-ion battery cell 400 is fixed on the battery cell fixing fixture 200 using the bolt 203 and the battery cell fixing bracket plate 206, and then the entire battery cell fixing fixture 200 is fixed on the test fixture base 100 through the second cross slot 201 and the fixing pin 104, and then the movable pin 300 is inserted to prevent the battery cell fixing fixture 200 from moving horizontally during the test. After testing a certain axial direction, the movable pin 300 is pulled out, the direction of the battery cell fixing fixture 200 is changed and the movable pin 300 is inserted, thereby realizing the change of the test axial direction.

[0050] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. Lithium-ion battery cell vibration test tooling, characterized in that: include: A test fixture base (100), wherein a battery cell fixing fixture (200) is provided inside the test fixture base (100), a movable latch (300) is provided on the top of the battery cell fixing fixture (200), and the movable latch (300) is also clamped on the top of the test fixture base (100), and a lithium-ion battery cell (400) is placed inside the battery cell fixing fixture (200); A second cross-shaped slot (201) is provided on the surface of the battery cell fixing tool (200) close to the test tool base (100), the opening shape of the second cross-shaped slot (201) matches the shape of the movable latch (300), a snap-fit bracket (202) is provided inside the battery cell fixing tool (200), the snap-fit bracket (202) is used to fix the installation test of the lithium-ion battery cell (400), a bolt (203) is provided on the top of the snap-fit bracket (202), and a first battery cell bracket bolt hole (204) is also provided on the surface of the battery cell fixing tool (200); A test fixture base back plate (101) is installed at the rear of the test fixture base (100), test fixture base side plates (102) are installed on both sides of the test fixture base (100), and a test fixture base bottom plate (103) is installed at the bottom of the test fixture base (100), and the test fixture base back plate (101), the test fixture base side plates (102) and the test fixture base bottom plate (103) are jointly spliced to form the test fixture base (100).

2. The lithium-ion battery cell vibration test tool according to claim 1, characterized in that: The test fixture base (100) and the battery core fixing fixture (200) are fixed by a movable latch (300), and the cross-sectional shape of the movable latch (300) is an I-shape.

3. The lithium-ion battery cell vibration test tool according to claim 2, characterized in that: A cell fixing bracket plate (206) is provided on the top of the snap bracket (202), a second cell bracket bolt hole (205) is provided on the surface of the cell fixing bracket plate (206), the cell fixing bracket plate (206) is detachably mounted on the top of the snap bracket (202), and a side of the cell fixing bracket plate (206) close to the cell fixing tool (200) is overlapped with the inner side of the cell fixing tool (200).

4. The lithium-ion battery cell vibration test tool according to claim 3, characterized in that: The outer surface of the test fixture base back plate (101) is provided with a fixing pin (104), the outer surface of the test fixture base side plate (102) is provided with a first cross-shaped card slot (105), the first cross-shaped card slot (105) is opened in a cross shape, the height of the test fixture base side plate (102) is greater than the length of the upper and lower opening path of the first cross-shaped card slot (105), and the fixing pin (104) is also installed at the bottom of the test fixture base bottom plate (103).

5. The lithium-ion battery cell vibration test tool according to claim 4, characterized in that: The second cross-shaped slot (201) is also cross-shaped and is provided on the outer surface of the battery cell fixing fixture (200), and is used to fix the bottom connection of the test fixture base (100) and the battery cell fixing fixture (200).

6. The lithium-ion battery cell vibration test fixture according to claim 5, characterized in that: The lower surface of the test fixture base bottom plate (103) is provided with screw holes (107), and four of the screw holes (107) form a group and are arranged at the corner position of the test fixture base bottom plate (103). The bottom of the test fixture base bottom plate (103) is also provided with reinforcing ribs (106).

7. The lithium-ion battery cell vibration test tool according to claim 6, characterized in that: The reinforcing rib (106) and the test fixture base bottom plate (103) are integrally formed. The bottom of the test fixture base bottom plate (103) is provided with a straight slot (108). There are four straight slots (108), which are respectively provided at the protrusions of the test fixture base bottom plate (103).

Images