Test clamp and vibration test tool
By setting clearance grooves and notches in the test fixture, the problem of unreasonable fixture structure in existing vibration testing tooling is solved, resulting in more accurate vibration test results and higher safety, while simplifying the assembly process.
Patent Information
- Application Number
- CN202423235009.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In existing vibration testing fixtures, the design of the test fixtures used to hold secondary batteries is unreasonable, resulting in a large deviation between the vibration test results and the actual transportation results, which reduces the reliability of the vibration test results.
A test fixture was designed to avoid the welding protrusions of the energy storage device by setting avoidance grooves and notches on the limiting plug and side plate. Combined with vibration testing fixture, vibration testing is carried out to simulate the actual transportation state and improve the reliability and safety of the test results.
This improves the reliability of vibration test results, avoids leakage problems caused by weld failure, ensures the safety and reliability of energy storage devices during vibration testing, and simplifies the assembly process.
Smart Images
Figure CN223538489U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of energy storage testing technology, and in particular to a test fixture and vibration testing tooling. Background Technology
[0002] A rechargeable battery, also known as a secondary battery or storage battery, is a battery that can be recharged after discharge to reactivate its active materials and continue to be used. The recyclable nature of rechargeable batteries has made them a primary power source for electrical equipment. As the demand for rechargeable batteries increases, so too do the requirements for their performance. In the research and production of rechargeable batteries, vibration testing fixtures are typically used to conduct vibration tests to simulate the battery's condition in actual transportation environments, thereby obtaining the battery's performance parameters under vibration. However, existing vibration testing fixtures often have unreasonable structural designs for the test clamps used to hold the batteries, resulting in significant deviations between the vibration test results and the actual results during transportation, thus reducing the reliability of the vibration test results. Utility Model Content
[0003] This application provides a test fixture and vibration test tooling that enables the energy storage device to be in a state closer to its state during vibration testing than during actual transportation, thereby helping to improve the reliability of vibration test results.
[0004] In a first aspect, this application provides a test fixture for holding an energy storage device. The energy storage device includes a side shell and a first welded protrusion. The side shell includes a first end and a second end, which are spaced apart along the width direction of the energy storage device. The first welded protrusion connects the first end and the second end and protrudes relative to the outer surface of the side shell. The test fixture includes a base plate, two side plates, and two limiting blocks. The base plate has a bearing surface for supporting the energy storage device. The two side plates and the two limiting blocks are all disposed on the side shell. On the bearing surface, along the width direction of the test fixture, two side plates are spaced apart and oppositely arranged, and are used to clamp the energy storage device along the width direction of the energy storage device. Along the length direction of the test fixture, two limiting blocks are spaced apart and oppositely arranged, and are used to clamp the energy storage device along the length direction of the energy storage device. At least one of the limiting blocks is provided with a first clearance groove. The opening of the first clearance groove is located on the surface of the limiting block facing the energy storage device, and the first clearance groove extends along the height direction of the test fixture. The first clearance groove is used to avoid the first welding protrusion.
[0005] The energy storage device further includes a bottom shell and a second welded protrusion. The second welded protrusion is connected between the side shell and the bottom shell, surrounds the bottom shell, and protrudes relative to the outer surface of the side shell and the outer surface of the bottom shell. The bottom plate is provided with a second clearance groove, the opening of which is located on the bearing surface. The second clearance groove is used to avoid the second welded protrusion.
[0006] The depth of the second clearance groove is greater than or equal to 0.5 mm.
[0007] The second clearance groove includes a first groove sidewall and a second groove sidewall. The first groove sidewall and the second groove sidewall are spaced apart and arranged opposite to each other. The distance d between the first groove sidewall and the second groove sidewall is greater than 3mm.
[0008] Along the length of the test fixture, the surface of the limiting plug facing the energy storage device is located between the first slot sidewall and the second slot sidewall, and is spaced apart from both the first slot sidewall and the second slot sidewall.
[0009] Each of the limiting blocks includes a first side and a second side. Along the width direction of the test fixture, the first side and the second side are arranged opposite to each other. Each limiting block is also provided with a first clearance notch. The opening of the first clearance notch is located on the surface of the limiting block facing the energy storage device. The first clearance notch penetrates the surface of the limiting block facing the base plate, the first side and the second side, and is connected to both the first clearance groove and the second clearance groove. The first clearance notch is used to avoid the second welding protrusion.
[0010] Wherein, along the width direction of the test fixture, the surface of the side plate facing the energy storage device is located between the first tank side wall and the second tank side wall, and is spaced apart from both the first tank side wall and the second tank side wall.
[0011] Each of the side plates includes a first end face and a second end face. Along the length direction of the test fixture, the first end face and the second end face are arranged opposite to each other. Each of the side plates is provided with a second clearance notch. The opening of the second clearance notch is located on the surface of the side plate facing the energy storage device, the first end face, and the second end face. The second clearance notch penetrates the surface of the side plate facing the bottom plate and communicates with the second clearance groove. The second clearance notch is used to avoid the second welding protrusion.
[0012] The test fixture further includes at least one reinforcing body. Along the width direction of the test fixture, at least one reinforcing body is located on the side of the side plate away from the energy storage device and is fixedly connected to the side plate and the bottom plate.
[0013] The test fixture also includes two stops, both of which are fixedly installed on the base plate. Along the length of the test fixture, each stop is located on the side of a limiting plug away from the energy storage device and is fixed to the two side plates.
[0014] The energy storage device further includes an electrical connector and an explosion-proof valve. Along the height direction of the test fixture, the electrical connector is located on the side of the two side plates opposite to the base plate. Along the length direction of the test fixture, the explosion-proof valve is spaced apart from the electrical connector. The test fixture also includes a limiting plate. Along the height direction of the test fixture, the limiting plate is located on the side of the two side plates opposite to the base plate and is fixedly installed between the two side plates. Along the length direction of the test fixture, the limiting plate is spaced apart from both the electrical connector and the explosion-proof valve.
[0015] Secondly, this application also provides a vibration testing fixture, including a vibration table and a test fixture as described in any of the preceding claims, wherein the test fixture is mounted on one side of the vibration table in the height direction and can vibrate under the drive of the vibration table.
[0016] The test fixture provided in this application clamps the energy storage device using a base plate, two limiting blocks, and two side plates. A first clearance groove is provided on at least one limiting block. When the energy storage device is subjected to vibration testing using a vibration testing fixture, the first clearance groove can avoid the first weld protrusion of the energy storage device, preventing rigid contact between the test fixture and the first weld protrusion during vibration testing. This ensures that the state of the energy storage device during vibration testing is closer to its state during actual transportation, improving the reliability of the vibration test results. It also effectively solves the leakage problem caused by weld failure during vibration testing, contributing to improved safety and reliability of the energy storage device during vibration testing. Furthermore, the test fixture has a simple overall structure, is easy to assemble, and is foolproof, thus improving assembly efficiency. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.
[0018] Figure 1 This is a schematic diagram of the structure of a vibration testing fixture and energy storage device provided in an embodiment of this application;
[0019] Figure 2 yes Figure 1 A schematic diagram of the casing of the energy storage device shown;
[0020] Figure 3 yes Figure 1 The diagram shows the structure of the test fixture in the vibration testing tooling.
[0021] Figure 4 yes Figure 3 A schematic diagram of the test fixture shown at another angle;
[0022] Figure 5 yes Figure 3 The exploded view of the test fixture shown.
[0023] Figure 6 yes Figure 5 The diagram shows the structure of the base plate in the test fixture.
[0024] Figure 7 yes Figure 5 The diagram shows the structure of the side plate in the test fixture.
[0025] Figure 8 yes Figure 7 A schematic diagram of the cross-sectional structure of the side plate after it has been cut along point AA.
[0026] Figure 9 yes Figure 5 The diagram shows the structure of the limiting plug in the test fixture.
[0027] Figure 10 yes Figure 3 A partial structural schematic diagram of the test fixture shown;
[0028] Figure 11 yes Figure 10 A schematic diagram of the cross-sectional structure of the test fixture after it is cut along point BB;
[0029] Figure 12 yes Figure 10 A schematic diagram of the cross-sectional structure of the test fixture after it is cut along point CC.
[0030] Figure 13 yes Figure 3 A schematic diagram of the structure of the first reinforcing body in the test fixture shown;
[0031] Figure 14 yes Figure 4 A schematic diagram of the structure of the second reinforcing body in the test fixture shown;
[0032] Figure 15 yes Figure 14 The diagram shows the exploded structure of the second reinforcing body.
[0033] Figure 16 yes Figure 15 A schematic diagram of the main body of the second reinforcing body is shown;
[0034] Figure 17 yes Figure 3 A schematic diagram of the stop block in the test fixture shown;
[0035] Figure 18 yes Figure 17 A schematic diagram of the cross-sectional structure of the stop block after it is cut along DD.
[0036] Figure 19 yes Figure 3 The diagram shows the structure of the limiting plate in the test fixture.
[0037] The names corresponding to the labels in the figure are:
[0038] Vibration testing fixture 100, energy storage device 200, vibration table 110, test fixture 120, housing 210, bottom shell 211, side shell 212, first end 212a, second end 212b, first weld protrusion 213, second weld protrusion 214, electrical connecting piece 220, explosion-proof valve 230, base plate 10, limiting plug 20, side plate 30, reinforcing body 40, stop block 50, limiting plate 60, bearing surface 10 a, Second clearance groove 11, First fixing hole 12, Second fixing hole 13, Third fixing hole 14, Fifth fixing hole 15, Fourth fixing hole 16, Groove bottom wall 111, First groove side wall 112, Second groove side wall 113, Second surface 31, First end face 33, Second end face 34, Second clearance notch 32, First fastening hole 301, Second fastening hole 302, Third fastening hole 303, Fourth fastening hole 304, and so on. Five fastening holes 305, first side plate 30a, second side plate 30b, first surface 21, first side surface 201, second side surface 202, mounting hole 22, first clearance notch 24, first clearance groove 23, second fastener 121, first reinforcing body 40a, second reinforcing body 40b, first assembly hole 401, second assembly hole 402, third fastener 122, fourth fastener 123, main body 41, fixing part 42, locking part 43, first mating hole 411, second mating hole 412, third mating hole 421, fourth mating hole 422, fifth fastener 124, sixth fastener 125, first locking hole 51, second locking hole 52, third locking hole 53, seventh fastener 126, eighth fastener 127, eleventh fastener 130, first through hole 61, second through hole 62, ninth fastener 128, tenth fastener 129. Detailed Implementation
[0039] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.
[0040] Please refer to the following: Figure 1 , Figure 1 This is a schematic diagram of the structure of a vibration testing fixture 100 and an energy storage device 200 provided in an embodiment of this application. For ease of description, the length direction of the test fixture is defined as the X-axis, the width direction as the Y-axis, and the height direction as the Z-axis. The X-axis, Y-axis, and Z-axis are mutually perpendicular.
[0041] This application provides a vibration testing fixture 100, which includes a vibration table 110 and a test fixture 120. The test fixture 120 is fixedly installed on one side of the vibration table 110 in the height direction. The vibration table 110 can vibrate under the action of a driving device such as a motor. The test fixture 120 is used to hold the energy storage device 200 and can vibrate under the drive of the vibration table 110. That is, the energy storage device 200 can vibrate under the drive of the test fixture 120. It is understood that using the vibration testing fixture 100 to perform vibration testing on the energy storage device 200 can simulate the state of the energy storage device 200 in transportation environments such as land, air, or sea transport, thereby obtaining the performance parameters of the energy storage device 200 under vibration conditions, which helps to improve the safety and reliability of the energy storage device 200 during transportation.
[0042] Please see Figure 2 , Figure 2 yes Figure 1 A schematic diagram of the structure of the housing 210 of the energy storage device 200 shown.
[0043] In this embodiment, the housing 210 of the energy storage device 200 includes a bottom shell 211 and a side shell 212. The side shell 212 is welded to the bottom shell 211 and is disposed around the bottom shell 211. The side shell 212 includes a first end 212a and a second end 212b, which are spaced apart along the width direction of the energy storage device 200 (the Y-axis direction in the figure).
[0044] During the fabrication of the housing 210 of the energy storage device 200, the edges of the first end 212a facing the second end 212b and the edges of the second end 212b facing the first end 212a of the side shell 212 are melted and welded together by laser welding energy injection, and then cooled to form a first weld protrusion 213. Alternatively, the housing 210 of the energy storage device 200 can also be understood as including the first weld protrusion 213. The first weld protrusion 213 connects the first end 212a and the second end 212b and protrudes relative to the outer surface of the side shell 212.
[0045] The edges of the bottom shell 211 facing the side shell 212 and the edges of the side shell 212 facing the bottom shell 211 are melted and welded together by laser welding energy injection, and then cooled to form a second weld protrusion 214. Alternatively, the housing 210 of the energy storage device 200 may also include the second weld protrusion 214. The second weld protrusion 214 connects the side shell 212 and the bottom shell 211, and protrudes relative to the outer surfaces of the bottom shell 211 and the side shell 212.
[0046] Please continue reading. Figure 2 The energy storage device 200 also includes an electrical connection piece 220 and an explosion-proof valve 230. Along the height direction of the energy storage device 200 (Z-axis direction in the diagram), the electrical connection piece 220 and the explosion-proof valve 230 are spaced apart from the base shell 211. The electrical connection piece 220 is exposed relative to the outer surface of the test fixture 120. It should be understood that the electrical connection piece 220 is typically electrically connected to the pole of the energy storage device 200. During vibration testing, the vibration testing fixture 100 can more realistically simulate the impact of vibration on the pole of the energy storage device 200 through the electrical connection piece 220, thereby helping to improve the accuracy of the test results of the vibration testing fixture 100. In this embodiment, there are two electrical connection pieces 220. Along the length direction of the energy storage device 200 (X-axis direction in the diagram), the two electrical connection pieces 220 are spaced apart. The explosion-proof valve 230 is located between the two electrical connection pieces 220 and spaced apart from them.
[0047] Please refer to the following: Figure 3 , Figure 4 and Figure 5 , Figure 3 yes Figure 1 The diagram shows the structure of the test fixture 120 in the vibration testing fixture 100. Figure 4 yes Figure 3 The diagram shows the structure of the test fixture 120 at another angle. Figure 5 yes Figure 3 The exploded view of the test fixture 120 is shown.
[0048] In this embodiment, the test fixture 120 includes a base plate 10, two limiting blocks 20, two side plates 30, two reinforcing bodies 40, two stop blocks 50, and a limiting plate 60. The two limiting blocks 20, two side plates 30, two reinforcing bodies 40, two stop blocks 50, and the limiting plate 60 are all located on one side of the base plate 10 in the thickness direction.
[0049] Please see Figure 6 , Figure 6 yes Figure 5 The diagram shows the structure of the base plate 10 in the test fixture 120.
[0050] In this embodiment, the base plate 10 has a bearing surface 10a. The bearing surface 10a is used to support the energy storage device 200. The base plate 10 is provided with a second clearance groove 11, a first fixing hole 12, a second fixing hole 13, a third fixing hole 14, a fifth fixing hole 15, and a fourth fixing hole 16. The second clearance groove 11 is located in the middle of the base plate 10. The opening of the second clearance groove 11 is located on the bearing surface 10a of the base plate 10. The second clearance groove 11 is recessed from the bearing surface 10a of the base plate 10 in a direction away from the energy storage device 200. The second clearance groove 11 is used to avoid the second welding protrusion 214 between the side shell 212 and the bottom shell 211. The depth h of the second clearance groove 11 is greater than or equal to 0.5 mm, so as to avoid the second welding protrusion 214 protruding relative to the outer surface of the bottom shell 211.
[0051] In this embodiment, the groove wall of the second clearance groove 11 includes a bottom groove wall 111, a first groove side wall 112, and a second groove side wall 113. The first groove side wall 112 and the second groove side wall 113 are both fixedly connected to the bottom groove wall 111 and are spaced apart and arranged opposite to each other. The distance d between the first groove side wall 112 and the second groove side wall 113 is greater than 3mm to avoid the second welding protrusion 214 protruding from the outer surface of the opposite side shell 212.
[0052] It is understandable that when the energy storage device 200 is subjected to vibration testing using the vibration testing fixture 100, by setting a second clearance groove 11 on the base plate 10, the second clearance groove 11 can avoid the second welding protrusion 214 of the energy storage device 200, thus preventing the base plate 10 and the second welding protrusion 214 from making rigid contact during the vibration test, thereby effectively solving the problem of leakage caused by weld failure during the vibration of the energy storage device 200.
[0053] The first fixing hole 12, the second fixing hole 13, the third fixing hole 14, the fifth fixing hole 15, and the fourth fixing hole 16 all penetrate the base plate 10 along its thickness direction and are spaced apart from each other, surrounding the periphery of the second clearance groove 11. In this embodiment, the first fixing hole 12 is used to fix the base plate 10 to the vibration table 110, thereby fixing the test fixture 120 to the vibration table 110. Exemplarily, there are multiple first fixing holes 12. The multiple first fixing holes 12 can be divided into two groups. Along the width direction of the base plate 10, the two groups of first fixing holes 12 are spaced apart. Each group includes multiple first fixing holes 12. Along the length direction of the base plate 10, the multiple first fixing holes 12 in each group are spaced apart. Exemplarily, one group of first fixing holes 12 are all circular holes, and the other group of first fixing holes 12 are all oblong holes. In some other embodiments, the two sets of first fixing holes 12 may both be circular holes, or they may both be oblong holes, or they may be other irregularly shaped holes. The embodiments of this application do not impose strict limitations on this.
[0054] In this embodiment, the second fixing hole 13 is used to fix the base plate 10 to the side plate 30. Exemplarily, there are multiple second fixing holes 13. These multiple second fixing holes 13 can be divided into two groups. Along the width direction of the base plate 10, the two groups of second fixing holes 13 are spaced apart. Each group includes multiple second fixing holes 13. Along the length direction of the base plate 10, the multiple second fixing holes 13 in each group are spaced apart.
[0055] The third fixing hole 14 and the fifth fixing hole 15 are used to fix the base plate 10 to the reinforcing body 40. Along the width direction of the base plate 10, the third fixing hole 14 and the fifth fixing hole 15 are respectively provided on opposite sides of the second clearance groove 11, and are spaced apart from the first fixing hole 12 and the second fixing hole 13. For example, there are multiple third fixing holes 14 and multiple fifth fixing holes 15. Along the length direction of the base plate 10, multiple third fixing holes 14 are spaced apart, and multiple fifth fixing holes 15 are spaced apart.
[0056] In this embodiment, the fourth fixing hole 16 is used to fix the base plate 10 to the stop block 50. Exemplarily, there are multiple fourth fixing holes 16. The multiple fourth fixing holes 16 can be divided into two groups. Along the length direction of the base plate 10, the two groups of fourth fixing holes 16 are spaced apart. Each group includes multiple fourth fixing holes 16. The multiple fourth fixing holes 16 in each group are spaced apart from each other. Exemplarily, the fourth fixing hole 16 is a circular hole. In some other embodiments, the fourth fixing hole 16 may also be an oblong hole or other irregularly shaped hole; the embodiments of this application do not impose any limitations on this.
[0057] In addition, the test fixture 120 also includes a plurality of first fasteners (not shown). The plurality of first fasteners are used to secure the side plate 30 and the base plate 10. Each first fastener passes through a second fixing hole 13 in the base plate 10 and a first fastening hole 301 in the side plate 30, and is fixed to both the base plate 10 and the side plate 30 to assemble them. For example, the first fasteners may be bolts.
[0058] Please refer to the following: Figure 7 and Figure 8 , Figure 7 yes Figure 5 The schematic diagram of the side plate 30 in the test fixture 120 shown is shown. Figure 8 yes Figure 7 The diagram shows a cross-sectional view of the side plate 30 after it has been cut along line AA. "Cut along line AA" means cut along the plane containing line AA; similar descriptions in the following text can be understood in the same way.
[0059] Both side plates 30 are located on the bearing surface 10a of the base plate 10. Along the width direction of the test fixture 120, the two side plates 30 are spaced apart and opposite to each other, and are both fixed to the base plate 10, serving to clamp the energy storage device 200 along its width direction. Each side plate 30 includes a second surface 31 facing the energy storage device 200. Each side plate 30 also includes a first end face 33 and a second end face 34, both of which are fixedly connected to the second surface 31. Along the length direction of the test fixture 120, the first end face 33 and the second end face 34 are arranged opposite to each other.
[0060] Each side panel 30 is provided with a second clearance notch 32. The opening of the second clearance notch 32 is located on the surface of the side panel 30 facing the energy storage device 200. That is, the opening of the second clearance notch 32 is located on the second surface 31. The second clearance notch 32 penetrates the surface of the side panel 30 facing the bottom plate 10, the first end face 33 and the second end face 34, and communicates with the second clearance groove 11. The second clearance notch 32 is used to avoid the second welding protrusion 214.
[0061] Under this configuration, during vibration testing, rigid contact between the side plate 30 and the second welding protrusion 214 can be further avoided, thus preventing welding failure caused by high-speed impact between the test fixture 120 and the second welding protrusion 214. This not only makes the state of the energy storage device 200 during vibration testing closer to its state during actual transportation, improving the reliability of the vibration test results, but also prevents leakage of the energy storage device 200 during testing, ensuring the good safety of the energy storage device 200.
[0062] Each side panel 30 is further provided with a first fastening hole 301, a second fastening hole 302, a third fastening hole 303, a fourth fastening hole 304, and a fifth fastening hole 305. The opening of the first fastening hole 301 is located on the surface of the side panel 30 facing the base plate 10, and the first fastening hole 301 is recessed from the surface of the side panel 30 facing the base plate 10 in a direction away from the base plate 10. The first fastening hole 301 corresponds to and communicates with the second fixing hole 13 of the base plate 10. For example, there are multiple first fastening holes 301. Multiple first fastening holes 301 are spaced apart along the length of the side panel 30. Each first fastening hole 301 communicates with one of the second fixing holes 13 of the base plate 10 to achieve a fixed connection between the side panel 30 and the base plate 10.
[0063] The second fastening hole 302 penetrates the side plate 30 along its thickness direction and is spaced apart from the first fastening hole 301. The second fastening hole 302 is located at the edge of the side plate 30. Exemplarily, there are multiple second fastening holes 302. These multiple second fastening holes 302 can be divided into two groups. Along the length direction of the side plate 30, the two groups of second fastening holes 302 are spaced apart. Each group has multiple second fastening holes 302. Along the width direction of the side plate 30 (the Z-axis direction in the illustration), the second fastening holes 302 in each group are spaced apart. Each second fastening hole 302 is used to fix the side plate 30 to the limiting plug 20.
[0064] The third fastening hole 303 is located in the middle of the side plate 30. The opening of the third fastening hole 303 is located on the surface of the side plate 30 opposite to the energy storage device 200. The third fastening hole 303 is recessed from the surface of the side plate 30 opposite to the energy storage device 200 toward the energy storage device 200. For example, the third fastening hole 303 penetrates the side plate 30 along the thickness direction (Y-axis direction in the figure). In this embodiment, there are multiple third fastening holes 303. The multiple third fastening holes 303 can be divided into two groups. Along the length direction of the side plate 30, the two groups of third fastening holes 303 are spaced apart. Each group includes multiple third fastening holes 303. Along the width direction of the side plate 30 (Z-axis direction in the figure), the multiple third fastening holes 303 in each group are spaced apart. The third fastening hole 303 is used to fix the side plate 30 to the reinforcing body 40.
[0065] The opening of the fourth fastening hole 304 is located on the surface of the side plate 30 along its length and is spaced apart from both the second fastening hole 302 and the first fastening hole 301. Exemplarily, there are multiple fourth fastening holes 304. These multiple fourth fastening holes 304 can be divided into two groups. Along the length of the side plate 30, the two groups of fourth fastening holes 304 are spaced apart. Along the width of the side plate 30, each group of fourth fastening holes 304 is spaced apart. The fourth fastening holes 304 are used to fix the side plate 30 to the stop block 50.
[0066] The opening of the fifth fastening hole 305 is located on the surface of the side plate 30 facing away from the base plate 10, and the fifth fastening hole 305 is recessed from the surface of the side plate 30 facing away from the base plate 10 toward the base plate 10. The fifth fastening hole 305 is spaced apart from the second fastening hole 302, the third fastening hole 303, and the fourth fastening hole 304. For example, there are multiple fifth fastening holes 305. Multiple fifth fastening holes 305 are spaced apart along the length direction of the side plate 30. The fifth fastening holes 305 are used to fix the side plate 30 to the limiting plate 60.
[0067] Furthermore, the two side plates 30 can be divided into a first side plate 30a and a second side plate 30b. In this embodiment, the structure of the first side plate 30a and the structure of the second side plate 30b are the same. In some other embodiments, the structures of the first side plate 30a and the second side plate 30b may also be similar, and the embodiments of this application do not impose strict limitations on this.
[0068] Please see Figure 9 , Figure 9 yes Figure 5 The diagram shows the structure of the limiting block 20 in the test fixture 120.
[0069] Both limiting blocks 20 are located on the bearing surface 10a of the base plate 10. Along the width direction of the test fixture 120, the two limiting blocks 20 are fixedly installed between the two side plates 30. Along the length direction of the test fixture 120, the two limiting blocks 20 are spaced apart and opposite to each other, and are used to clamp the energy storage device 200 along its length. Specifically, each limiting block 20 includes a first surface 21 facing the energy storage device 200. Each limiting block 20 also includes a first side surface 201 and a second side surface 202. The first side surface 201 and the second side surface 202 are both connected to the first surface 21. Along the width direction of the test fixture 120, the first side surface 201 and the second side surface 202 are arranged opposite to each other.
[0070] Each limiting block 20 is provided with a mounting hole 22 and a first clearance notch 24. The mounting hole 22 penetrates through the first side 201 and the second side 202 of the limiting block 20. For example, there are multiple mounting holes 22. The multiple mounting holes 22 are spaced apart along the height direction of the limiting block 20. Each mounting hole 22 communicates with a second fastening hole 302 of the side plate 30.
[0071] The openings of the first clearance notch 24 are all located on the surface of the limiting plug 20 facing the energy storage device 200. That is, the openings of the first clearance notch 24 are all located on the first surface 21. The first clearance notch 24 penetrates the surface of the limiting plug 20 facing the base plate 10, the first side surface 201, and the second side surface 202. The first clearance notch 24 is used to avoid the second welding protrusion 214. With this configuration, during vibration testing, rigid contact between the limiting plug 20 and the second welding protrusion 214 can be avoided, thus preventing welding failure caused by high-speed impact between the test fixture 120 and the second welding protrusion 214. This not only makes the state of the energy storage device 200 in vibration testing closer to its state in actual transportation, improving the reliability of vibration test results, but also prevents leakage of the energy storage device 200 during testing, ensuring the good safety of the energy storage device 200.
[0072] In this embodiment, at least one limiting block 20 is provided with a first clearance groove 23. The opening of the first clearance groove 23 is located on the surface of the limiting block 20 facing the energy storage device 200. That is, the opening of the first clearance groove 23 is located on the first surface 21. The first clearance groove 23 is recessed from the first surface 21 in a direction away from the energy storage device 200, and communicates with both the first clearance notch 24 and the second clearance groove 11. The first clearance groove 23 extends along the height direction of the test fixture 120. The first clearance groove 23 is used to avoid the first welding protrusion 213 of the energy storage device 200.
[0073] It is understandable that by setting the first clearance groove 23 on the limiting plug 20, when the energy storage device 200 is subjected to vibration testing using the vibration testing fixture 100, the first clearance groove 23 can avoid the first welded protrusion 213 of the energy storage device 200, thus preventing the limiting plug 20 and the first welded protrusion 213 from making rigid contact during the vibration test. This not only makes the state of the energy storage device 200 in the vibration test closer to its state in the actual transportation process, improving the reliability of the vibration test results, but also effectively solves the leakage problem caused by weld failure during the vibration of the energy storage device 200, which helps to improve the safety and reliability of the energy storage device 200 during the vibration test.
[0074] It should be noted that when the surface of the limiting block 20 facing away from the base plate 10 is flush with the surface of the energy storage device 200 facing away from the base plate 10, or when the surface of each limiting block 20 facing away from the base plate 10 is lower than the surface of the energy storage device 200 facing away from the base plate 10, the first clearance groove 23 also penetrates the two surfaces of the limiting block 20 in the height direction (Z-axis direction in the figure). When the surface of the limiting block 20 facing away from the base plate 10 is higher than the surface of the energy storage device 200 facing away from the base plate 10, the first clearance groove 23 may not penetrate the surface of the limiting block 20 facing away from the base plate 10.
[0075] Furthermore, the two limiting blocks 20 shown in this embodiment have the same structure. It can be understood that by designing the two limiting blocks 20 with the same structure, it is not necessary to specifically distinguish the installation positions of the two limiting blocks 20 during the assembly process of the test fixture 120, thereby achieving foolproofing and helping to improve the assembly efficiency of the test fixture 120.
[0076] In this embodiment, the test fixture 120 further includes a plurality of second fasteners 121. Each of the second fasteners 121 is used to fix the side plate 30 and the limiting plug 20. Each second fastener 121 passes through a second fastening hole 302 in the side plate 30 and a mounting hole 22 in the limiting plug 20, and is fixed to both the limiting plug 20 and the side plate 30, thereby assembling the limiting plug 20 with the side plate 30. For example, the second fastener 121 can be a bolt.
[0077] Please refer to the following: Figures 10 to 12 , Figure 10 yes Figure 3 A partial structural schematic diagram of the test fixture 120 shown. Figure 11 yes Figure 10 The diagram shows a cross-sectional view of the test fixture 120 after it has been cut along point BB. Figure 12 yes Figure 10 The diagram shows a cross-sectional view of the test fixture 120 after it is cut along the CC direction.
[0078] After the side plate 30, the limiting block 20 and the base plate 10 are assembled, as follows: Figure 10 As shown, along the length of the test fixture 120, the surface of the limiting plug 20 facing the energy storage device 200 is located between the first slot sidewall 112 and the second slot sidewall 113, and is spaced apart from both the first slot sidewall 112 and the second slot sidewall 113. That is, the first surface 21 is located between the first slot sidewall 112 and the second slot sidewall 113, and is spaced apart from both the first slot sidewall 112 and the second slot sidewall 113. The distance d1 between the first surface 21 and the first slot sidewall 112 is greater than 1.5 mm, and the distance d2 between the first surface 21 and the second slot sidewall 113 is greater than 1.5 mm.
[0079] With this configuration, when the energy storage device 200 is subjected to vibration testing, on the one hand, it can prevent the limiting plug 20 from blocking the second clearance groove 11 of the base plate 10, ensuring that the second welded protrusion 214 of the energy storage device 200 can extend into the second clearance groove 11, avoiding rigid contact between the base plate 10 and the second welded protrusion 214 during the vibration test, which can effectively solve the problem of leakage caused by the failure of the second welded protrusion 214 during the vibration of the energy storage device 200. On the other hand, it can also ensure that the two limiting plugs 20 can play a limiting and supporting role for the energy storage device 200, so that the test fixture 120 can clamp and limit the energy storage device 200.
[0080] like Figure 11 As shown, along the width direction of the test fixture 120, the surface of the side plate 30 facing the energy storage device 200 is located between the first slot side wall 112 and the second slot side wall 113, and is spaced apart from both the first slot side wall 112 and the second slot side wall 113. That is, along the width direction of the test fixture 120, the second surface 31 is located between the first slot side wall 112 and the second slot side wall 113, and is spaced apart from both the first slot side wall 112 and the second slot side wall 113. The distance D1 between the second surface 31 and the first slot side wall 112 is greater than 1.5 mm, and the distance D2 between the second surface 31 and the second slot side wall 113 is greater than 1.5 mm.
[0081] With this configuration, when the energy storage device 200 is subjected to vibration testing, on the one hand, it can prevent the side plate 30 from obstructing the second clearance groove 11 of the base plate 10, ensuring that the second welded protrusion 214 of the energy storage device 200 can extend into the second clearance groove 11, avoiding rigid contact between the base plate 10 and the second welded protrusion 214 during vibration testing. This can effectively solve the problem of leakage caused by the failure of the second welded protrusion 214 during vibration of the energy storage device 200. On the other hand, it can also ensure that the two side plates 30 can play a limiting and supporting role for the energy storage device 200, so that the test fixture 120 can clamp and limit the energy storage device 200.
[0082] Please refer to the following: Figure 3 , Figure 4 and Figure 13 , Figure 13 yes Figure 3 A schematic diagram of the structure of the first reinforcing body 40a in the test fixture 120 shown.
[0083] Along the width direction of the test fixture 120, at least one reinforcing member 40 is located on the side of the side plate 30 facing away from the energy storage device 200 and is fixedly connected to the side plate 30 and the base plate 10. Exemplarily, there are two reinforcing members 40. Each reinforcing member 40 is fixedly connected between one side plate 30 and the base plate 10. It is understood that by providing a reinforcing member 40 between each side plate 30 and the base plate 10, the assembly reliability between the side plate 30 and the base plate 10 can be enhanced, the perpendicularity between the side plate 30 and the base plate 10 can be guaranteed, and the tilting of the energy storage device 200 during installation with the test fixture 120 can be prevented, ensuring good assembly stability between the energy storage device 200 and the test fixture 120. In some other embodiments, a reinforcing member 40 may not be provided between each side plate 30 and the base plate 10; the embodiments of this application do not strictly limit this.
[0084] In this embodiment, the two reinforcing bodies 40 can be divided into a first reinforcing body 40a and a second reinforcing body 40b. The structures of the first reinforcing body 40a and the second reinforcing body 40b are similar. This configuration allows for differentiation of the structures on both sides of the test fixture 120 in the width direction, thereby preventing mistake-proofing during assembly. In other embodiments, the structures of the first reinforcing body 40a and the second reinforcing body 40b may also be identical; the embodiments of this application do not impose strict limitations on this.
[0085] The structures of the first reinforcing body 40a and the second reinforcing body 40b will be described below.
[0086] Please refer to the following: Figure 5 and Figure 13A first reinforcing body 40a is fixedly installed between the first side plate 30a and the base plate 10 to enhance the assembly reliability between the first side plate 30a and the base plate 10. The first reinforcing body 40a has a first mounting hole 401 and a second mounting hole 402. The first mounting hole 401 penetrates the first reinforcing body 40a along its thickness direction and communicates with a third fastening hole 303 of the first side plate 30a. For example, there are multiple first mounting holes 401. These multiple first mounting holes 401 are spaced apart from each other. The multiple first mounting holes 401 can be divided into two groups. Along the length direction of the first reinforcing body 40a (X-axis direction in the figure), the two groups of first mounting holes 401 are spaced apart. Each group has multiple first mounting holes 401. Along the height direction of the first reinforcing body 40a (Z-axis direction in the figure), the multiple first mounting holes 401 in each group are spaced apart. Each first mounting hole 401 communicates with a third fastening hole 303 of the first side plate 30a.
[0087] The opening of the second mounting hole 402 is located on the surface of the first reinforcing body 40a facing the base plate 10. The second mounting hole 402 is recessed from the surface of the first reinforcing body 40a facing the base plate 10 in a direction away from the base plate 10. The second mounting hole 402 communicates with the third fixing hole 14 of the base plate 10. For example, there are multiple second mounting holes 402. Multiple second mounting holes 402 are spaced apart along the length direction of the first reinforcing body 40a (X-axis direction in the figure). Each second mounting hole 402 communicates with one of the third fixing holes 14 of the base plate 10.
[0088] Please refer to the following: Figure 3 , Figure 5 and Figure 13 The test fixture 120 also includes a plurality of third fasteners 122 and a plurality of fourth fasteners 123. The plurality of third fasteners 122 are all used to secure the first reinforcing body 40a and the first side plate 30a. Specifically, each third fastener 122 passes through a first mounting hole 401 in the first reinforcing body 40a and a third fastening hole 303 in the first side plate 30a, and is fixed to both the first reinforcing body 40a and the first side plate 30a to achieve assembly of the first side plate 30a and the first reinforcing body 40a. For example, the third fasteners 122 can be rivets.
[0089] Multiple fourth fasteners 123 are used to secure the first reinforcing body 40a and the base plate 10. Specifically, each fourth fastener 123 passes through a third fixing hole 14 in the base plate 10 and a second mounting hole 402 in the first reinforcing body 40a, and is fixed to both the base plate 10 and the first reinforcing body 40a to achieve assembly of the first reinforcing body 40a and the base plate 10. For example, the fourth fastener 123 can be a bolt.
[0090] Please refer to the following: Figures 14 to 16 , Figure 14 yes Figure 4 The diagram shows the structure of the second reinforcing member 40b in the test fixture 120. Figure 15 yes Figure 14 The exploded structure diagram of the second reinforcing body 40b is shown. Figure 16 yes Figure 15 A schematic diagram of the main body of the second reinforcing body 40b shown.
[0091] In this embodiment, the second reinforcing body 40b is fixedly installed between the base plate 10 and the second side plate 30b. The second reinforcing body 40b includes a main body 41, two fixing parts 42, and multiple locking members 43. The main body 41 is provided with a first mating hole 411 and a second mating hole 412. The opening of the first mating hole 411 is located on the end face of the main body 41 along its length direction (X-axis direction in the figure). For example, there are multiple first mating holes 411. The multiple first mating holes 411 can be divided into two groups. Along the length direction of the main body 41 (X-axis direction in the figure), the two groups of first mating holes 411 are spaced apart. Each group includes multiple first mating holes 411. Along the height direction of the second reinforcing body 40b (Z-axis direction in the figure), the multiple first mating holes 411 in each group are spaced apart.
[0092] The opening of the second mating hole 412 is located on the surface of the main body 41 facing the base plate 10, and the second mating hole 412 communicates with the fifth fixing hole 15 of the base plate 10. The second mating hole 412 is recessed from the surface of the main body 41 facing the base plate 10 in a direction away from the base plate 10. The second mating hole 412 is spaced apart from the first mating hole 411. For example, there are multiple second mating holes 412. Multiple second mating holes 412 are spaced apart along the length direction of the second reinforcing body 40b (X-axis direction in the figure). Each second mating hole 412 communicates with a fifth fixing hole 15 of the base plate 10.
[0093] Along the length direction (X-axis direction in the figure) of the second reinforcing body 40b, two fixing parts 42 are located on opposite sides of the main body 41. Each fixing part 42 is provided with a third mating hole 421 and a fourth mating hole 422. The third mating hole 421 penetrates the fixing part 42 along the thickness direction (X-axis direction in the figure) and communicates with the first mating hole 411 of the main body 41. For example, there are multiple third mating holes 421. Along the height direction (Z-axis direction in the figure) of the fixing part 42, multiple third mating holes 421 are spaced apart. Each third mating hole 421 communicates with a first mating hole 411 of the main body 41.
[0094] The fourth mating hole 422 extends through the fixing part 42 along its width direction (Y-axis direction in the figure), and is spaced apart from the third mating hole 421, and communicates with the third fastening hole 303 of the first side plate 30a. For example, there are multiple fourth mating holes 422. Multiple fourth mating holes 422 are spaced apart along the height direction of the fixing part 42 (Z-axis direction in the figure). Each fourth mating hole 422 communicates with one of the third fastening holes 303 of the first side plate 30a.
[0095] Please continue reading. Figure 14 Multiple locking members 43 are used to secure the main body 41 and the fixing part 42. Specifically, each locking member 43 passes through a third mating hole 421 in the fixing part 42 and a first mating hole 411 in the main body 41, and is fixed to the fixing part 42 and the main body 41 to assemble the fixing part 42 with the main body 41. For example, the locking member 43 can be a bolt.
[0096] Please refer to the following: Figure 4 , Figure 5 and Figure 14 The test fixture 120 also includes a plurality of fifth fasteners 124 and a plurality of sixth fasteners 125. The plurality of fifth fasteners 124 are all used to secure the second reinforcing body 40b and the second side plate 30b. Specifically, each fifth fastener 124 passes through a fourth mating hole 422 of a fixing part 42 and a third fastening hole 303 of the second side plate 30b, and is fixed to both the second side plate 30b and the fixing part 42, so that the second reinforcing body 40b and the second side plate 30b are assembled. For example, the fifth fasteners 124 can be bolts.
[0097] Multiple sixth fasteners 125 are used to secure the second reinforcing body 40b and the base plate 10. Specifically, each sixth fastener 125 passes through a fifth fixing hole 15 in the base plate 10 and a second mating hole 412 in the main body 41, and is fixed to both the main body 41 and the base plate 10 to assemble the second reinforcing body 40b and the base plate 10. For example, the sixth fastener 125 can be a bolt.
[0098] Please refer to the following: Figure 3 , Figure 17 and Figure 18 , Figure 17 yes Figure 3 A schematic diagram of the structure of the stop block 50 in the test fixture 120 shown. Figure 18 yes Figure 17 The diagram shows a cross-sectional view of the stop block 50 after it is cut along DD.
[0099] Both stops 50 are located on the bearing surface 10a of the base plate 10. Along the length of the test fixture 120, each stop 50 is located on the side of a limiting block 20 facing away from the energy storage device 200 and is fixed to the two side plates 30. In this configuration, the stops 50 can limit the limiting block 20 and the side plates 30, thereby preventing the limiting block 20 and the side plates 30 from moving during the vibration test, and also pressing the gap between the limiting block 20 and the energy storage device 200 to further limit the energy storage device 200, thus helping to reduce the risk of the energy storage device 200 moving during the vibration test.
[0100] Specifically, each stop block 50 is provided with a first locking hole 51, a second locking hole 52, and a third locking hole 53. The first locking hole 51 and the second locking hole 52 both penetrate the stop block 50 along its thickness direction (X-axis direction in the diagram) and are spaced apart from each other. Along the width direction of the stop block 50 (Y-axis direction in the diagram), the first locking hole 51 and the second locking hole 52 are spaced apart. The first locking hole 51 communicates with the fourth fastening hole 304 of the first side plate 30a. For example, there are multiple first locking holes 51. Along the height direction of the stop block 50 (Z-axis direction in the diagram), multiple first locking holes 51 are spaced apart. Each first locking hole 51 communicates with one of the fourth fastening holes 304 of the first side plate 30a.
[0101] In this embodiment, the second locking hole 52 communicates with the fourth fastening hole 304 of the second side plate 30b. For example, there are multiple second locking holes 52. Multiple second locking holes 52 are spaced apart along the height direction of the stop block 50 (the Z-axis direction in the figure). Each second locking hole 52 communicates with one of the fourth fastening holes 304 of the second side plate 30b.
[0102] The opening of the third locking hole 53 is located on the surface of the stop 50 facing the base plate 10. The third locking hole 53 is recessed from the surface of the stop 50 facing the base plate 10 in a direction away from the base plate 10. The third locking hole 53 is spaced apart from the first locking hole 51 and the second locking hole 52, and communicates with the fourth fixing hole 16 of the base plate 10. For example, there are multiple third locking holes 53. Multiple third locking holes 53 are spaced apart. Each third locking hole 53 communicates with one fourth fixing hole 16.
[0103] Please refer to the following: Figures 3 to 5The test fixture 120 also includes a plurality of seventh fasteners 126, a plurality of eighth fasteners 127, and an eleventh fastener 130. The plurality of seventh fasteners 126 and the plurality of eighth fasteners 127 are used to secure the stop block 50 and the two side plates 30. For example, both the seventh fasteners 126 and the eighth fasteners 127 can be bolts. Specifically, each seventh fastener 126 passes through a first locking hole 51 of a stop block 50 and a fourth fastening hole 304 of a first side plate 30a, and is fixed to a stop block 50 and a first side plate 30a to assemble the stop block 50 with the first side plate 30a. Each eighth fastener 127 passes through a second locking hole 52 of a stop block 50 and a fourth fastening hole 304 of a second side plate 30b, and is fixed to a stop block 50 and a second side plate 30b to assemble the stop block 50 with the second side plate 30b.
[0104] Multiple eleventh fasteners 130 are used to fix the stop block 50 and the base plate 10. Specifically, each eleventh fastener 130 is inserted through a fourth fixing hole 16 and a third locking hole 53, and is fixed to the base plate 10 and the stop block 50 to enable the base plate 10 and the stop block 50 to be assembled.
[0105] Please refer to the following: Figure 3 , Figure 5 and Figure 19 , Figure 19 yes Figure 3 The diagram shows the structure of the limiting plate 60 in the test fixture 120.
[0106] In this embodiment, the limiting plates 60 are located on the side of the two side plates 30 facing away from the base plate 10, and are fixedly installed between the two side plates 30. Along the length of the test fixture 120, the limiting plates 60, the electrical connecting piece 220, and the explosion-proof valve 230 are spaced apart. For example, there are two limiting plates 60. Along the length of the test fixture 120, the two limiting plates 60 are spaced apart. With this arrangement, the height of the energy storage device 200 can be limited, reducing the risk of the energy storage device 200 shifting during vibration testing.
[0107] Specifically, each limiting plate 60 is provided with a first through hole 61 and a second through hole 62. Both the first through hole 61 and the second through hole 62 penetrate the limiting plate 60 along its thickness direction (Z-axis direction in the diagram) and are spaced apart from each other. The first through hole 61 communicates with a fifth fastening hole 305 of the first side plate 30a. The second through hole 62 communicates with the fifth fastening hole 305 of the second side plate 30b.
[0108] In addition, the test fixture 120 also includes a plurality of ninth fasteners 128 and a plurality of tenth fasteners 129. The plurality of ninth fasteners 128 are all used to fix the limiting plate 60 and the first side plate 30a. Specifically, each ninth fastener 128 passes through a first through hole 61 of a limiting plate 60 and a fifth fastening hole 305 of a first side plate 30a, and is fixed to the limiting plate 60 and the first side plate 30a to assemble the limiting plate 60 and the first side plate 30a. Each tenth fastener 129 passes through a second through hole 62 of a limiting plate 60 and a fifth fastening hole 305 of a second side plate 30b, and is fixed to the limiting plate 60 and the second side plate 30b to assemble the limiting plate 60 and the second side plate 30b. For example, both the ninth fasteners 128 and the tenth fasteners 129 can be bolts.
[0109] It should be understood that, typically, the test fixture 120 and the energy storage device 200 are first assembled on the vibration table 110 to clamp the energy storage device 200, and then the vibration test fixture 100 is activated to perform vibration testing on the energy storage device 200. During the assembly of the energy storage device 200 and the test fixture 120, the base plate 10 is first fixedly installed onto the vibration table 110, then a stop block 50 is fixed to the base plate 10, and then another stop block 50 is fixed to the first side plate 30a. Immediately afterwards, a limiting plug 20 is fixed to the first side plate 30a. After this, the first reinforcing body 40a is installed between the first side plate 30a and the base plate 10 to ensure the perpendicularity between the base plate 10 and the first side plate 30a, preventing the energy storage device 200 from tilting. Then, the energy storage device 200 is pushed in.
[0110] Following this, the second side plate 30b is fixed to the limiting block 20, and the second reinforcing body 40b is installed between the second side plate 30b and the base plate 10 to further reduce the risk of tilting of the energy storage device 200. Then, another limiting block 20 is fixedly installed between the first side plate 30a and the second side plate 30b. At this time, the test fixture 120 can limit the energy storage device 200 in the length and width directions to prevent the energy storage device 200 from moving along its length and width directions during the test. Among them, along the height direction of the test fixture 120, the electrical connection piece 220 of the energy storage device 200 is located on the side of the two side plates 30 away from the base plate 10.
[0111] Next, another stop 50 is fixed to the base plate 10, the first side plate 30a, and the second side plate 30b. At this time, the two stop blocks 50 interact with each other, pressing the gap between the two limiting blocks 20 and the energy storage device 200, further limiting the energy storage device 200. Finally, the two limiting plates 60 are installed on the side of the first side plate 30a and the second side plate 30b opposite to the base plate 10, thereby limiting the height of the energy storage device 200.
[0112] The test fixture 120 provided in this application clamps the energy storage device using a base plate 10, two limiting blocks 20, and two side plates 30. A first clearance groove 23 is provided on the limiting blocks 20, and a second clearance groove 11 is provided on the base plate 10. When the energy storage device 200 is subjected to vibration testing using the vibration testing fixture 100, the first clearance groove 23 can avoid the first weld protrusion 213 of the energy storage device 200, and the second clearance groove 11 can avoid the second weld protrusion 214 of the energy storage device 200. This avoids rigid contact between the test fixture 120 and the first weld protrusion 213 and the second weld protrusion 214 of the energy storage device 200 during vibration testing. This not only makes the state of the energy storage device 200 during vibration testing closer to its state during actual transportation, improving the reliability of vibration test results, but also effectively solves the leakage problem caused by weld failure during vibration of the energy storage device 200, thus helping to improve the safety and reliability of the energy storage device 200 during vibration testing. In addition, the test fixture 120 has a simple overall structure, which facilitates the assembly of the test fixture 120 and enables mistake-proofing, thereby helping to improve assembly efficiency.
[0113] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Where there is no conflict, the embodiments and features described in the embodiments of this application can be combined with each other. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A test fixture for clamping an energy storage device, the energy storage device comprising a side shell and a first welded protrusion, the side shell comprising a first end and a second end, the first end and the second end being spaced apart along the width direction of the energy storage device, the first welded protrusion connecting the first end and the second end and protruding relative to the outer surface of the side shell, characterized in that, The test fixture includes a base plate, two side plates, and two limiting blocks. The base plate has a bearing surface for supporting the energy storage device. The two side plates and the two limiting blocks are all disposed on the bearing surface. Along the width direction of the test fixture, the two side plates are spaced apart and opposite to each other, and are used to clamp the energy storage device along the width direction of the energy storage device. Along the length direction of the test fixture, the two limiting blocks are spaced apart and opposite to each other, and are used to clamp the energy storage device along the length direction of the energy storage device. At least one of the limiting blocks is provided with a first clearance groove. The opening of the first clearance groove is located on the surface of the limiting block facing the energy storage device, and the first clearance groove extends along the height direction of the test fixture. The first clearance groove is used to avoid the first welding protrusion.
2. The test fixture according to claim 1, characterized in that, The energy storage device further includes a bottom shell and a second welded protrusion. The second welded protrusion is connected between the side shell and the bottom shell, surrounds the bottom shell, and protrudes relative to the outer surface of the side shell and the outer surface of the bottom shell. The base plate is provided with a second clearance groove, the opening of which is located on the bearing surface, and the second clearance groove is used to avoid the second welding protrusion.
3. The test fixture according to claim 2, characterized in that, The depth of the second clearance groove is greater than or equal to 0.5 mm.
4. The test fixture according to claim 2 or 3, characterized in that, The second clearance groove includes a first groove sidewall and a second groove sidewall. The first groove sidewall and the second groove sidewall are spaced apart and arranged opposite to each other. The distance d between the first groove sidewall and the second groove sidewall is greater than 3mm.
5. The test fixture according to claim 4, characterized in that, Along the length of the test fixture, the surface of the limiting plug facing the energy storage device is located between the first slot sidewall and the second slot sidewall, and is spaced apart from both the first slot sidewall and the second slot sidewall.
6. The test fixture according to claim 5, characterized in that, Each of the limiting blocks includes a first side and a second side. Along the width direction of the test fixture, the first side and the second side are arranged opposite to each other. Each of the limiting blocks is also provided with a first clearance notch. The opening of the first clearance notch is located on the surface of the limiting block facing the energy storage device. The first clearance notch penetrates the surface of the limiting block facing the base plate, the first side and the second side, and communicates with both the first clearance groove and the second clearance groove. The first clearance notch is used to avoid the second welding protrusion.
7. The test fixture according to claim 4, characterized in that, Along the width direction of the test fixture, the surface of the side plate facing the energy storage device is located between the first tank side wall and the second tank side wall, and is spaced apart from both the first tank side wall and the second tank side wall.
8. The test fixture according to claim 7, characterized in that, Each of the side plates includes a first end face and a second end face. Along the length direction of the test fixture, the first end face and the second end face are arranged opposite to each other. Each of the side plates is provided with a second clearance notch. The opening of the second clearance notch is located on the surface of the side plate facing the energy storage device. The second clearance notch penetrates the surface of the side plate facing the base plate, the first end face, and the second end face, and communicates with the second clearance groove. The second clearance notch is used to avoid the second welding protrusion.
9. The test fixture according to claim 1, characterized in that, The test fixture further includes at least one reinforcing body, which is located on the side of the side plate away from the energy storage device along the width direction of the test fixture, and is fixedly connected to the side plate and the bottom plate.
10. The test fixture according to claim 1, characterized in that, The test fixture also includes two stops, both of which are fixedly installed on the base plate. Along the length of the test fixture, each stop is located on the side of a limiting plug away from the energy storage device and is fixed to the two side plates.
11. The test fixture according to claim 1, characterized in that, The energy storage device also includes an electrical connection piece and an explosion-proof valve. Along the height direction of the test fixture, the electrical connection piece is located on the side of the two side plates opposite to the base plate. Along the length direction of the test fixture, the explosion-proof valve is spaced apart from the electrical connection piece. The test fixture also includes a limiting plate. Along the height direction of the test fixture, the limiting plate is located on the side of the two side plates away from the base plate and is fixedly installed between the two side plates. Along the length direction of the test fixture, the limiting plate is spaced apart from the electrical connection piece and the explosion-proof valve.
12. A vibration testing fixture, characterized in that, It includes a vibration table and a test fixture as described in any one of claims 1 to 11, the test fixture being mounted on one side of the vibration table in the height direction and capable of vibrating under the drive of the vibration table.