Improved aluminum bar
By designing a bidirectional improved aluminum bar, the influence of the aluminum bar resistance on the cell test results was eliminated, achieving higher test accuracy.
Patent Information
- Application Number
- CN202520317730.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-26
AI Technical Summary
In existing technologies, the internal resistance of unidirectional aluminum bars affects the accuracy of cell test results and cannot be effectively removed, resulting in large errors.
A modified aluminum bar is designed to be bidirectional, comprising a connection area and a test area. The connection area has a second hole for electrical connection with the battery cell, and the test area has a first and a third hole for electrical connection with testing equipment. A boss is provided in the connection area to enhance stability and eliminate the influence of the aluminum bar resistance on voltage measurement.
By improving the design of the aluminum bar, the influence of the aluminum bar's own resistance on the cell test results was eliminated, thus improving the accuracy of the test results.
Smart Images
Figure CN223679271U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to battery technical field, especially relate to an improved aluminum bar. BACKGROUND
[0002] The aluminum bar is used as the auxiliary material for testing the electric core, and its role is to conduct the current between the electric core and the testing equipment, so its structure and internal resistance will also affect the accuracy of the testing data. At present, the industry all adopts the one-way aluminum bar, so the internal resistance of the aluminum bar is also included in the calculation result when testing, and the internal resistance of the aluminum bar itself cannot be removed, so that the calculation result has errors, and the production design of the electric core is affected. UTILITY MODEL CONTENTS
[0003] The utility model discloses to the technical deficiency, provide an improved aluminum bar, remove the internal resistance of the aluminum bar itself, make the calculation result more accurate.
[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:
[0005] An improved aluminum bar, including the connecting area and the test area on both sides, the connecting area and the test area are provided with the boss at the joint, the second hole position for being electrically connected with the electric core to be measured is arranged in the connecting area, and the first hole position and the third hole position for being electrically connected with the detection equipment are arranged in the test area on both sides.
[0006] Preferably, the diameter of the second hole position is matched with the size of the pole of the electric core to be measured.
[0007] Preferably, the diameter of the second hole position is 6-8mm.
[0008] Preferably, the diameter of the first hole position is same with the diameter of the third hole position, and both are less than the diameter of the second hole position.
[0009] Preferably, the interval of the second hole position and the first hole position and the third hole position is same, and the interval distance is 30-60mm.
[0010] Preferably, the width of the connecting area is greater than or equal to the pole diameter of the electric core to be measured, and the length of the connecting area is greater than or equal to the width of the electric core to be measured.
[0011] Preferably, the width of the connecting area is 15-20mm, and the length of the connecting area is 30-60mm.
[0012] Preferably, the connecting area is provided with the hot melting area, the second hole position is arranged in the hot melting area, the hot melting area is the circular area corresponding to the pole of the electric core to be measured, and the diameter of the hot melting area is 15-20mm.
[0013] Preferably, the connecting region is in the same horizontal plane as the testing region, and the boss is a rectangular boss protruding from the plane of the connecting region.
[0014] Preferably, the boss has a protrusion height of 6-8mm and a length of 12-15mm.
[0015] Compared with the prior art, the improved aluminum bar has the beneficial effects that: the improved aluminum bar is designed as a bidirectional conduction aluminum bar, the second hole position is hot-melt fixed on the to-be-tested battery cell, and then the testing equipment is connected to the first hole position and the second hole position respectively, one end tests the current, and the other end tests the voltage. When the battery cell is charged and discharged, the charging and discharging wire is connected to the aluminum bar at one end of the battery cell, and the detection wire for measuring voltage is connected to the aluminum bar at the other end. The aluminum bar for measuring voltage does not form a loop, and the resistance of the aluminum bar is not calculated when measuring voltage. In this way, the resistance of the aluminum bar itself during testing is eliminated, and the accuracy of the test result is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 is an assembly effect schematic view of the utility model.
[0017] Fig. 2 is an assembly top view structural schematic view of the utility model.
[0018] Fig. 3 is an assembly side view structural schematic view of the utility model.
[0019] REFERENCE SIGNS:
[0020] 1, connecting region, 11, second hole position, 12, hot-melt region;
[0021] 2, testing region, 21, first hole position, 22, third hole position;
[0022] 3, boss. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0024] As Figs. 1-3As shown, an improved aluminum bar includes a connecting area 1 and two test areas 2 on both sides of the connecting area 1, and a boss 3 is arranged at the joint of the connecting area 1 and the test area 2. The connecting area 1 is provided with a second hole position 11 for electrical connection with the to-be-tested battery cell. The two test areas 2 are respectively provided with a first hole position 21 and a third hole position 22 for electrical connection with the detection equipment. The test area 2 and the boss 3 are symmetrically arranged on both sides of the connecting area 1. The first hole position 21, the second hole position 11 and the third hole position 22 are through holes arranged on the same straight line. The first hole position 21 and the third hole position 22 are respectively connected with the current detection equipment and the voltage test equipment, and the test is synchronous detection.
[0025] Further, the diameter of the second hole position 11 is matched with the size of the pole of the to-be-tested battery cell. Specifically, in the embodiment, the diameter of the second hole position 11 is 6.5 mm. The improved aluminum bar can be fixed on the to-be-tested battery cell by the second hole position 11, and the improved aluminum bar is arranged on the pole of the to-be-tested battery cell.
[0026] Further, the diameter of the first hole position 21 is the same as the diameter of the third hole position 22, and both are smaller than the diameter of the second hole position 11. In the embodiment, the diameter of the first hole position 21 and the third hole position 22 is 5.5 mm. The detection end of the test equipment can be arranged in the first hole position 21 and the third hole position 22.
[0027] Further, the interval between the second hole position 11 and the first hole position 21 and the third hole position 22 is the same, and the interval distance is 50 mm. The interval can be adjusted according to the size of the to-be-tested battery cell.
[0028] Further, the width of the connecting area 1 is greater than or equal to the diameter of the pole of the to-be-tested battery cell, and the length of the connecting area 1 is greater than or equal to the width of the to-be-tested battery cell. The connecting area 1 mainly covers the pole of the to-be-tested battery cell, so as to realize the electrical connection between the improved aluminum bar and the battery cell.
[0029] Further, the width of the connecting area 1 is 18 mm, and the length of the connecting area 1 is 40 mm. In the embodiment, the diameter of the pole of the to-be-tested battery cell is 16 mm, and the width of the to-be-tested battery cell is 38 mm. The size of the connecting area 1 is slightly larger than that of the to-be-tested battery cell, so as to realize the close covering connection thereon.
[0030] Further, the connecting area 1 is provided with a hot melting area, the second hole position 11 is arranged in the hot melting area 12, the hot melting area 12 is a circular area corresponding to the pole of the to-be-tested battery cell, and the diameter of the hot melting area 12 is 17 mm. The second hole position 11 and the hot melting area 12 are concentric circles, so as to completely adhere and weld the improved aluminum bar on the pole of the to-be-tested battery cell.
[0031] Further, the connecting area 1 and the testing area 2 are in the same horizontal plane, and the boss 3 is a rectangular boss 3 protruding from the plane of the connecting area 1. The boss 3 can play a buffering role to avoid the aluminum bar from loosening during assembly or detection. Specifically, the boss 3 has a protruding height of 6.5 mm, and the boss 3 has a length of 14 mm.
[0032] According to the disclosure and teaching of the above description, those skilled in the art of the present application can also make changes and modifications to the above embodiments. Therefore, the present application is not limited to the above specific embodiments, and any obvious improvements, replacements or modifications made by those skilled in the art on the basis of the present application shall fall within the scope of the present application. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the present application.
Claims
1. An improved aluminium baba characterized in that: The application relates to a test strip for testing the performance of a battery, which comprises a connecting area (1) and two test areas (2) on both sides of the connecting area (1), wherein a convex boss (3) is arranged at the joint of the connecting area (1) and the test area (2), a second hole (11) for electrically connecting with a battery to be tested is arranged in the connecting area (1), and a first hole (21) and a third hole (22) for electrically connecting with a detection device are arranged in the test areas (2) on both sides respectively.
2. The improved aluminium bhas of claim 1 wherein: The diameter of the second hole (11) is matched with the size of the pole of the battery to be tested.
3. The improved aluminium bhas of claim 2 wherein: The diameter of the second hole (11) is 6-8 mm.
4. The improved aluminium bhas of claim 3 wherein: The diameter of the first hole (21) is the same as that of the third hole (22), and both are smaller than that of the second hole (11).
5. The improved aluminium bhas claimed in claim 1 wherein: The interval distance between the second hole (11) and the first hole (21) and the third hole (22) is the same, and the interval distance is 30-60 mm.
6. The improved aluminium bhas claimed in claim 1 wherein: The width of the connecting area (1) is greater than or equal to the diameter of the pole of the battery to be tested, and the length of the connecting area (1) is greater than or equal to the width of the battery to be tested.
7. The improved aluminium bhas claimed in claim 6 wherein: The width of the connecting area (1) is 15-20 mm, and the length of the connecting area (1) is 30-60 mm.
8. The modified aluminum bar according to claim 1, wherein: A hot melting area is arranged on the connecting area (1), the second hole (11) is arranged in the hot melting area (12), the hot melting area (12) is a circular area corresponding to the pole of the battery to be tested, and the diameter of the hot melting area (12) is 15-20 mm.
9. The modified aluminum bar according to claim 1, wherein: The connecting area (1) and the test area (2) are in the same horizontal plane, and the boss (3) is a rectangular boss protruding from the plane of the connecting area (1).
10. The improved aluminium bhas claimed in claim 9, wherein: The protruding height of the boss (3) is 6-8 mm, and the length of the boss (3) is 12-15 mm.