Battery pack testing tool

Abstract

The utility model discloses a battery pack test tool used for testing a battery pack, the battery pack test tool comprises a test bench, a plurality of support frames and a pressing frame, the plurality of support frames are arranged at intervals along a first direction and are all installed on the test bench; the pressing frame is installed on the test bed, a containing space used for containing the battery pack is formed between the pressing frame and the multiple supporting frames, and the pressing frame is arranged on the top face of the battery pack in a pressed mode so that the battery pack can be fixed to the multiple supporting frames. According to the battery pack test tool provided by the embodiment of the utility model, the plurality of supporting frames are arranged on the bottom surface of the battery pack, so that the connection strength between the supporting frames and the test bench can be increased, and meanwhile, the battery pack is clamped and fixed through the pressing frame and the plurality of supporting frames, so that abnormal vibration generated in a vibration test process of the battery pack can be reduced; and the battery pack vibration failure risk is reduced.

Description

Technical Field

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

[0002] In the related art, the battery pack vibration test fixture can fix and clamp the battery pack through a fixture to reduce the abnormal vibration of the battery pack during the vibration test and reduce the risk of vibration failure of the battery pack. However, in actual vibration tests, the vibration test fixture may cause the battery pack to fail due to vibration due to excessive weight or insufficient rigidity. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a battery pack test fixture, which can reduce the abnormal vibration generated by the battery pack during the vibration test and reduce the risk of vibration failure of the battery pack by clamping and fixing the battery pack through a press frame and a plurality of support frames.

[0004] The battery pack testing tool according to the embodiment of the utility model is used to test the battery pack, including: a test bench; a plurality of support frames, which are arranged at intervals along a first direction and are all installed on the test bench; a press frame, which is installed on the test bench, and a accommodating space for accommodating the battery pack is formed between the press frame and the plurality of support frames, and the press frame is pressed on the top surface of the battery pack to fix the battery pack on the plurality of support frames.

[0005] According to the battery pack testing tooling of the embodiment of the utility model, a plurality of support frames are arranged on the bottom surface of the battery pack, which can increase the connection strength between the support frames and the test bench. At the same time, the battery pack is clamped and fixed by the pressing frame and the plurality of support frames, which can reduce abnormal vibration generated by the battery pack during the vibration test and reduce the risk of vibration failure of the battery pack.

[0006] According to some embodiments of the present invention, the press frame includes a first press frame and second press frames located on both sides of the first press frame in a first direction, and the first press frame and a plurality of the second press frames are spaced apart along the first direction.

[0007] According to some embodiments of the present invention, the second pressing frame has an avoidance groove in the direction toward the battery pack for avoiding the explosion-proof valve of the battery pack.

[0008] According to some embodiments of the present invention, the first pressing frame has a first fixing hole, the battery pack has a second fixing hole, and fasteners are passed through the first fixing hole and the second fixing hole to fix the pressing frame and the battery pack.

[0009] According to some embodiments of the present invention, the support frame has a first groove extending along the second direction, and the opening of the first groove is away from the battery pack; and / or the pressing frame has a second groove extending along the second direction, and the opening of the second groove is away from the battery pack, wherein the first direction is perpendicular to the second direction.

[0010] According to some embodiments of the present invention, a plurality of spaced-apart partitions are provided in the second groove, the width of the battery pack is N, the length of the pressing frame is L, and the distance between two adjacent partitions is c, satisfying: L≥1.25×N, c≤0.25×L.

[0011] According to some embodiments of the present invention, the width of the battery pack is N, and the length of the support frame is X, satisfying: 0.8×N≥X≥0.5×N.

[0012] According to some embodiments of the present invention, the battery pack testing tool also includes a fixing plate, which is detachably connected to the test bench, and the pressing frame is detachably connected to the fixing plate.

[0013] According to some embodiments of the present invention, support seats are respectively provided at both ends of the pressing frame in the first direction, and the support seats are connected between the fixing plate and the pressing frame.

[0014] According to some embodiments of the utility model, the battery pack testing tool also includes a first clamp and a second clamp detachably connected to the fixing plate, a first mounting portion is provided on both sides of the first direction of the battery pack, and a second mounting portion is provided on both sides of the second direction of the battery pack, the first clamp is used to clamp the first mounting portion, and the second clamp is used to clamp the second mounting portion.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is an exploded view of a battery pack testing tool and a battery pack according to some embodiments of the utility model;

[0018] Figure 2 is a schematic diagram of a battery pack testing tool according to some embodiments of the utility model;

[0019] Figure 3is a top view of a support frame according to some embodiments of the utility model;

[0020] Figure 4 yes Figure 3 Sectional view along line AA;

[0021] Figure 5 is a top view of a press frame according to some embodiments of the utility model;

[0022] Figure 6 yes Figure 5 Sectional view along line BB;

[0023] Figure 7 yes Figure 6 Enlarged view of point C in the middle.

[0024] Reference numerals:

[0025] 100. Battery pack test tooling;

[0026] 10. support frame; 11. first groove;

[0027] 20. Press frame; 21. First press frame; 211. First fixing hole; 22. Second press frame; 221. Avoidance groove; 2211. First avoidance groove; 2212. Second avoidance groove; 23. Second groove; 231. Partition plate;

[0028] 31. Accommodating space; 32. Fixing plate; 33. Support seat; 34. First fixture; 35. Second fixture;

[0029] 40. Battery pack; 41. Second fixing hole; 42. First mounting portion; 43. Second mounting portion. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] Reference below Figure 1-Figure 7 A battery pack testing tool 100 according to an embodiment of the present invention is described.

[0034] The battery pack test fixture 100 according to the embodiment of the utility model is used to test the battery pack 40. The battery pack test fixture 100 includes a test bench, a plurality of support frames 10 and a press frame 20. The plurality of support frames 10 and the press frame 20 are all installed on the test bench, and the test bench is used to support the plurality of support frames 10 and the press frame 20. The plurality of support frames 10 are arranged along a first direction (for example, referring to the attached Figure 2 The pressing frame 20 and the supporting frames 10 are arranged at intervals (in the e1 direction, which may be the length direction of the battery pack 40), and a receiving space 31 is formed between the pressing frame 20 and the multiple supporting frames 10. The receiving space 31 is used to receive the battery pack 40. The pressing frame 20 is pressed on the top surface of the battery pack 40 to fix the battery pack 40 on the multiple supporting frames 10.

[0035] By arranging a plurality of support frames 10 on the bottom surface of the battery pack 40, the connection strength between the support frame 10 and the test bench can be increased. The test bench is used to perform a vibration test on the battery pack 40. By clamping and fixing the battery pack 40 by the press frame 20 and the plurality of support frames 10, the abnormal vibration generated by the battery pack 40 during the vibration test can be reduced, and the risk of vibration failure of the battery pack 40 can be reduced.

[0036] There are multiple support frames 10, that is, the number of support frames 10 is two or more, and preferably the number of support frames 10 is five, and the five support frames 10 are arranged at equal intervals along the first direction, and the five support frames 10 are all located on the bottom surface of the battery pack 40.

[0037] For example, the support frame 10 can be fixed to the test bench by a plurality of bolts, the plurality of bolts extend along the length direction of the support frame 10, the spacing between two adjacent bolts is j, the width of the battery pack 40 is N, the length of the support frame 10 is X, the width of the support frame 10 is Y, the height of the support frame 10 is Z, and the spacing between two adjacent support frames 10 is m, satisfying: 0.8×N≥X≥0.5×N, Y≥0.1×X, 0.5×Y≥m≥0.25×Y, j≤0.1×X. For example, the width N of the battery pack 40 can be 1500mm, the length X of the support frame 10 can be between 750mm and 1200mm, the width Y of the support frame 10 can be greater than 75mm, and the spacing m between two adjacent support frames 10 can be between 19mm and 75mm. Specifically, the length X of the support frame 10 can be 750mm, 800mm, 1000mm or 1200mm, etc., the width Y of the support frame 10 can be 75mm, 80mm, 100mm or 120mm, etc., and the spacing j between two adjacent bolts can be 60mm, 80mm or 100mm, etc.

[0038] According to the battery pack testing tool 100 of the embodiment of the utility model, a plurality of support frames 10 are arranged on the bottom surface of the battery pack 40, which can increase the connection strength between the support frame 10 and the test bench. At the same time, the battery pack 40 is clamped and fixed by the pressing frame 20 and the plurality of support frames 10, which can reduce the abnormal vibration generated by the battery pack 40 during the vibration test and reduce the risk of vibration failure of the battery pack 40.

[0039] According to some embodiments of the present invention, referring to Figure 1-Figure 2 , Figure 5-Figure 7 The pressing frame 20 includes a first pressing frame 21 and a second pressing frame 22. The second pressing frame 22 has two pressing frames, which are respectively located on both sides of the first direction of the first pressing frame 21. The first pressing frame 21 and the plurality of second pressing frames 22 are arranged at intervals along the first direction. The first pressing frame 21 and the plurality of second pressing frames 22 are pressed on the top surface of the battery pack 40, so as to further increase the stability of the pressing frame 20 in pressing the battery pack 40 in the accommodating space 31.

[0040] The length, width and height of the first press frame 21 and the second press frame 22 are equal, the length of the press frame 20 is L, the width of the press frame 20 is W, the height of the press frame 20 is H, and the width of the battery pack 40 is N, satisfying: L≥1.25×N, W=0.1×L, H≥0.5×W; for example, the width N of the battery pack 40 can be 1500mm, the length L of the press frame 20 can be 1900mm, 2000mm or 2100mm, etc., the width W of the press frame 20 can be 190mm, 200mm or 210mm, etc., and the height H of the press frame 20 can be 95mm, 100mm or 105mm, etc.

[0041] According to some embodiments of the present invention, referring to Figure 5-Figure 7 The second pressing frame 22 is provided with an avoidance groove 221 in the direction toward the battery pack 40. The avoidance groove 221 is used to avoid the explosion-proof valve of the battery pack 40, thereby preventing the second pressing frame 22 from pressing on the explosion-proof valve of the battery pack 40 when the battery pack 40 is placed in the accommodating space 31, reducing the risk of leakage of the explosion-proof valve of the battery pack 40 during the vibration test and improving the safety of the battery pack 40.

[0042] For example, the avoidance groove 221 includes a first avoidance groove 2211 and a second direction (for example, see the attached Figure 2 The second avoidance grooves 2212 on both sides of the battery pack 40 are arranged in the direction e2 in the second direction, which may be the width direction of the battery pack 40, wherein the first direction is perpendicular to the second direction, and the width of the first avoidance groove 2211 in the second direction is greater than the width of the second avoidance groove 2212 in the second direction, in order to match the position of the explosion-proof valve of the battery pack 40. The width of the first avoidance groove 2211 in the second direction is e, and the width of the second avoidance groove 2212 in the second direction is d, satisfying: 50mm≤d≤100mm, e=2d; the width d of the second avoidance groove 2212 in the second direction may be 50mm, 70mm, 80mm or 100mm, etc., and the width e of the first avoidance groove 2211 in the second direction may be 100mm, 140mm, 160mm or 200mm, etc. The heights of the first avoidance groove 2211 and the second avoidance groove 2212 are both equal to h, satisfying: h≥5mm. Specifically, the heights h of the first avoidance groove 2211 and the second avoidance groove 2212 can be 5mm, 6mm, 7mm or 8mm, etc.

[0043] According to some embodiments of the present invention, referring to Figure 1-Figure 2 , Figure 5-Figure 7The first pressing frame 21 has a first fixing hole 211, and the battery pack 40 has a second fixing hole 41. Fasteners are inserted through the first fixing hole 211 and the second fixing hole 41 to fix the first pressing frame 21 and the battery pack 40. Not only is the battery pack 40 fixed to the multiple support frames 10 by the pressing frame 20, but the battery pack 40 is also fixed to the first pressing frame 21 by fasteners, which further increases the stability of the battery pack 40 fixed to the accommodating space 31 and reduces the risk of vibration failure of the battery pack 40 during the vibration test.

[0044] According to some embodiments of the present invention, referring to Figure 1-Figure 7 , the support frame 10 has a first groove 11 extending along the second direction; and / or the pressing frame 20 has a second groove 23 extending along the second direction. The support frame 10 may have a first groove 11 extending along the second direction, or the pressing frame 20 may have a second groove 23 extending along the second direction; or the support frame 10 may have a first groove 11 extending along the second direction, and the pressing frame 20 may have a second groove 23 extending along the second direction.

[0045] The opening of the first groove 11 is away from the battery pack 40, and the opening of the second groove 23 is away from the battery pack 40, which can make the contact surface between the support frame 10 and the battery pack 40 larger, and at the same time make the contact surface between the pressing frame 20 and the battery pack 40 larger, which can increase the stability of the support frame 10 and the pressing frame 20 in fixing the battery pack 40; setting the first groove 11 in the support frame 10 and setting the second groove 23 in the pressing frame 20 can reduce the weight of the support frame 10 and the pressing frame 20, that is, the weight of the battery pack test tool 100 can be reduced, and the risk of vibration failure of the battery pack test tool 100 can be reduced.

[0046] For example, the height of the first groove 11 is k, and the height of the support frame 10 is Z, satisfying: 0.6×Z≥k≥0.5×Z, the height Z of the support frame 10 can be 80 mm, and the height k of the first groove 11 is between 40 mm and 48 mm. Specifically, the height k of the first groove 11 can be 40 mm, 42 mm, 45 mm, 46 mm or 48 mm, etc. The width of the first groove 11 in the first direction is i, the width of the pressing frame 20 in the first direction is Y, and the width of the battery pack 40 is N, satisfying: 0.8×N≥X≥0.5×N, Y≥0.1×X, 0.5×Y≥i≥0.4×Y, the width N of the battery pack 40 can be 1500mm, the length X of the support frame 10 can be between 750mm and 1200mm, the width Y of the support frame 10 can be greater than 75mm, and the width i of the first groove 11 in the second direction can be between 30mm and 37mm; specifically, the length X of the support frame 10 can be 750mm, 900mm, 1100mm or 1200mm, etc., and the width i of the first groove 11 in the second direction can be 30mm, 33mm, 35mm or 37mm, etc.

[0047] For another example, the distance between the bottom surface of the second groove 23 and the bottom surface of the pressing frame 20 is t, which satisfies: t=20 mm.

[0048] According to some embodiments of the present invention, referring to Figure 1-Figure 2 , Figure 5-Figure 7 A plurality of spaced-apart partitions 231 are disposed in the second groove 23 , which can further increase the structural strength of the press frame 20 . The partitions 231 can be welded to the second groove 23 , which can improve the rigidity of the press frame 20 .

[0049] The width of the battery pack 40 is N, the length of the press frame 20 is L, and the distance between two adjacent partitions 231 is c, which satisfies: L ≥ 1.25 × N, c ≤ 0.25 × L. For example, the width N of the battery pack 40 can be 1500 mm, the length L of the press frame 20 can be greater than 1875 mm, and the distance c between two adjacent partitions 231 can be less than 460 mm; specifically, the length L of the press frame 20 can be 1900 mm, 2000 mm, or 2100 mm, and the distance c between two adjacent partitions 231 can be 460 mm, 450 mm, or 440 mm, etc.

[0050] According to some embodiments of the present invention, referring to Figure 1-Figure 4, the width of the battery pack 40 is N, and the length of the support frame 10 is X, satisfying: 0.8×N≥X≥0.5×N. For example, the width N of the battery pack 40 can be 1500mm, and the length X of the support frame 10 can be between 750mm and 1200mm, specifically, 750mm, 900mm, 1000mm or 1200mm. It is used to define the relationship between the length of the support frame 10 and the width of the battery pack 40, so that the battery pack 40 can reduce the weight of the battery pack test fixture 100 while maintaining the installation reliability, improve the battery pack test fixture 100, and reduce the risk of vibration failure of the battery pack 40.

[0051] According to some embodiments of the present invention, referring to Figure 1-Figure 2 The battery pack test fixture 100 also includes a fixing plate 32, which is detachably connected to the test bench. The press frame 20 is detachably connected to the fixing plate 32, which can increase the firmness of the press frame 20 fixed to the test bench. The battery pack 40 can be installed or removed by installing or removing the press frame 20.

[0052] According to some embodiments of the present invention, referring to Figure 1-Figure 2 , Figure 5-Figure 7 A support seat 33 is provided at both ends of the press frame 20 in the second direction. The support seat 33 is connected between the fixing plate 32 and the press frame 20. The support seat 33 is used to support the press frame 20 and can define a receiving space 31 between the press frame 20 and the support frame 10.

[0053] For example, the press frame 20 can be fixed to the support seat 33 by bolts, and the distance between the two connected bolts in the first direction is b, 30mm≤b≤40mm; specifically, the distance b between the two connected bolts can be 30mm, 32mm, 35mm, 37mm or 40mm, etc. The fixed width between the press frame 20 and the support seat 33 in the second direction is a, the length of the press frame 20 is L, and the width of the battery pack 40 is N, satisfying: L≥1.25×N, 0.05×L≤a≤0.1×L, the width N of the battery pack 40 can be 1500mm, the length L of the press frame 20 can be 1900mm, 2000mm or 2100mm, etc. The fixed width a between the press frame 20 and the support seat 33 in the second direction can be between 95mm and 200mm, specifically, the fixed width a between the press frame 20 and the support seat 33 in the second direction can be 95mm, 110mm or 120mm, etc.

[0054] According to some embodiments of the present invention, referring to Figure 1-Figure 2The battery pack testing fixture 100 also includes a first clamp 34 and a second clamp 35 detachably connected to the fixing plate 32. A first mounting portion 42 is provided on both sides of the first direction of the battery pack 40, and a second mounting portion 43 is provided on both sides of the second direction of the battery pack 40. The first clamp 34 is used to clamp the first mounting portion 42, and the second clamp 35 is used to clamp the second mounting portion 43.

[0055] The first mounting portion 42 and the second mounting portion 43 are used to fix the battery pack 40 to the electrical equipment. The first mounting portion 42 and the second mounting portion 43 inherent on the battery pack 40 are used to fix the first mounting portion 42 and the second mounting portion 43 by the first clamp 34 and the second clamp 35 to fix the circumferential direction of the battery pack 40, further increase the firmness of the battery pack 40 fixed to the accommodating space 31, and reduce the risk of vibration failure of the battery pack 40.

[0056] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery pack testing tool, used for testing a battery pack, characterized in that: include: Test bench; A plurality of support frames, the plurality of support frames are arranged at intervals along a first direction and are all installed on the test bench; A press frame is installed on the test bench, and a receiving space for receiving the battery pack is formed between the press frame and the plurality of support frames. The press frame is pressed on the top surface of the battery pack to fix the battery pack on the plurality of support frames.

2. The battery pack testing tool according to claim 1, characterized in that: The pressing frame includes a first pressing frame and second pressing frames located on both sides of the first pressing frame in a first direction, and the first pressing frame and a plurality of the second pressing frames are arranged at intervals along the first direction.

3. The battery pack testing tool according to claim 2, characterized in that: The second pressing frame is provided with an escape groove in a direction toward the battery pack for evading an explosion-proof valve of the battery pack.

4. The battery pack testing tool according to claim 2, characterized in that: The first pressing frame has a first fixing hole, and the battery pack has a second fixing hole. Fasteners are inserted through the first fixing hole and the second fixing hole to fix the pressing frame and the battery pack.

5. The battery pack testing tool according to claim 1, characterized in that: The support frame has a first groove extending along a second direction, and an opening of the first groove faces away from the battery pack; And / or, the pressing frame has a second groove extending along a second direction, an opening of the second groove faces away from the battery pack, wherein the first direction is perpendicular to the second direction.

6. The battery pack testing tool according to claim 5, characterized in that: A plurality of spaced-apart partitions are arranged in the second groove, the width of the battery pack is N, the length of the pressing frame is L, the distance between two adjacent partitions is c, and the following conditions are satisfied: L≥1.25×N, c≤0.25×L.

7. The battery pack testing tool according to claim 1, characterized in that: The width of the battery pack is N, and the length of the support frame is X, satisfying: 0.8×N≥X≥0.5×N.

8. The battery pack testing tool according to claim 1, characterized in that: It also includes a fixing plate, which is detachably connected to the test bench, and the pressing frame is detachably connected to the fixing plate.

9. The battery pack testing tool according to claim 8, characterized in that: Support seats are respectively provided at two ends of the pressing frame in the second direction, and the support seats are connected between the fixing plate and the pressing frame.

10. The battery pack testing tool according to claim 8, characterized in that: It also includes a first clamp and a second clamp detachably connected to the fixing plate, a first mounting portion is provided on both sides of the first direction of the battery pack, and a second mounting portion is provided on both sides of the second direction of the battery pack, the first clamp is used to clamp the first mounting portion, and the second clamp is used to clamp the second mounting portion.

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