Battery acupuncture test device

Abstract

The utility model relates to the technical field of battery acupuncture test equipment, in particular to a battery acupuncture test device. The battery acupuncture test device comprises an upper clamp, a lower clamp, an elastic sensing assembly, a lifting assembly and an acupuncture assembly. Wherein the upper clamp and the lower clamp are arranged oppositely, one side, facing the lower clamp, of the upper clamp or one side, facing the upper clamp, of the lower clamp is provided with an elastic sensing assembly, and the lower clamp is used for placing a battery cell. The lifting assembly is in driving connection with the upper clamp, the lifting assembly can drive the upper clamp to move in the direction close to the battery cell, so that the upper clamp and the lower clamp jointly clamp the battery cell, and the elastic sensing assembly is configured to detect the clamping force of the battery cell. The needling assembly is connected with the upper clamp, and the needling assembly is configured to needling the battery cell. According to the battery acupuncture test device, the working efficiency can be improved, and the safety performance of the test is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery puncture test equipment, in particular to a battery puncture test device. Background Art

[0002] With the continuous development of new energy sources, lithium-ion batteries, as one of the products of new energy, are gaining increasing popularity. Currently, lithium-ion batteries are widely used in electric vehicles. However, during the use of electric vehicles, if a high-energy accident such as a collision occurs, it can cause severe deformation of the lithium-ion battery, resulting in serious safety issues such as internal short circuits. Therefore, lithium-ion batteries are tested for safety performance before being put into use, and they can only be put into use after they meet the safety standards.

[0003] The industry typically uses a needle penetration test to test lithium-ion batteries. During the needle penetration test, a fixture is usually required to clamp and fix the lithium-ion battery to simulate the actual situation of the lithium-ion battery during actual use. Then a steel needle is used to penetrate the lithium-ion battery to observe whether the lithium-ion battery catches fire or explodes.

[0004] However, the current clamps for holding lithium-ion batteries require workers to manually adjust them to achieve a reasonable clamping force. This not only reduces work efficiency, but also poses certain safety hazards when workers manually adjust the clamps when some lithium-ion batteries are not completely failed, thereby reducing safety.

[0005] Therefore, it is urgent to design a battery puncture test device to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to provide a battery puncture test device, which can improve work efficiency and enhance the safety performance of the test.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] The utility model provides a battery puncture test device, comprising:

[0009] An upper clamp and a lower clamp, the upper clamp and the lower clamp are arranged opposite each other, an elastic sensing component is provided on the side of the upper clamp facing the lower clamp or the side of the lower clamp facing the upper clamp, and the lower clamp is used to place the battery cell;

[0010] a lifting assembly, the lifting assembly being drivingly connected to the upper clamp, the lifting assembly being capable of driving the upper clamp to move toward the battery cell so that the upper clamp and the lower clamp jointly clamp the battery cell, the elastic sensing assembly being configured to detect the clamping force of the battery cell;

[0011] A puncture assembly is connected to the upper fixture and is configured to puncture the battery cell.

[0012] As an optional technical solution of a battery puncture test device, the elastic sensing components are provided in plurality, and the plurality of elastic sensing components are all provided at the edge of the upper clamp;

[0013] Alternatively, the plurality of elastic sensing components are all disposed at the edge of the lower fixture.

[0014] As an optional technical solution of a battery puncture test device, the battery puncture test device further includes a pressure display, which is electrically connected to the elastic sensor component and is used to display the clamping force exerted on the battery cell.

[0015] As an optional technical solution for a battery puncture test device, the puncture assembly includes a driving member, a telescopic rod and a steel needle. One end of the telescopic rod is connected to the driving member, and the other end of the telescopic rod is connected to the steel needle. The driving member can drive the telescopic rod to move so that the steel needle punctures the battery cell.

[0016] As an optional technical solution for a battery puncture test device, the steel needle is detachably connected to the other end of the telescopic rod.

[0017] As an optional technical solution of a battery puncture test device, the battery puncture test device further includes a working platform, and the lower clamp is placed on the working platform.

[0018] As an optional technical solution for a battery puncture test device, the lower fixture is provided with a first through hole, and the working platform is provided with a second through hole. The first through hole and the second through hole are arranged opposite each other. The battery cell is placed on the lower fixture and covers the first through hole. The puncture assembly is arranged opposite the first through hole.

[0019] As an optional technical solution of the battery puncture test device, the battery puncture test device further includes a frame, which is erected above the working platform, and the lifting assembly is connected to the frame.

[0020] As an optional technical solution for a battery puncture test device, the frame includes a horizontal beam and a vertical beam, one end of the vertical beam is connected to the working platform, and the other end of the vertical beam is connected to the horizontal beam. The horizontal beam is located above the working platform, and the lifting assembly is connected to the horizontal beam.

[0021] As an optional technical solution for a battery puncture test device, a slide rail is provided on the crossbeam, and the lifting assembly is slidably connected to the slide rail.

[0022] The beneficial effects of the present invention include at least:

[0023] The utility model provides a battery puncture test device, which includes an upper clamp, a lower clamp, an elastic sensor component, a lifting component and a puncture component. The upper clamp and the lower clamp are arranged opposite each other, and the elastic sensor component is provided on the side of the upper clamp facing the lower clamp or the side of the lower clamp facing the upper clamp, and the lower clamp is used to place the battery cell. The lifting component is connected to the upper clamp, and the lifting component can drive the upper clamp to move in the direction close to the battery cell so that the upper clamp and the lower clamp can clamp the battery cell together. The elastic sensor component is configured to detect the clamping force of the battery cell. The puncture component is connected to the upper clamp, and the puncture component is configured to puncture the battery cell.

[0024] As described above, when the battery puncture test device is working, the operator places the battery cell on the lower clamp, and then starts the lifting assembly, so that the lifting assembly drives the upper clamp to move in the direction close to the battery cell, so that the battery cell can be clamped under the action of the upper and lower clamps. At this time, the elastic sensing assembly is deformed under the action of the upper and lower clamps, and can detect the clamping force of the upper and lower clamps on the battery cell. The operator can judge whether the battery cell is clamped and whether the clamping force meets the standard based on the clamping force detected by the elastic sensing assembly, and then can adjust the clamping force of the battery cell again by the lifting movement of the lifting assembly. This eliminates the need for manual adjustment of the battery cell clamping force between the upper and lower clamps in the prior art, improves operating efficiency, reduces the safety hazards caused by manual adjustment of the battery cell clamping force, and improves the safety performance of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0026] Figure 1 It is a structural schematic diagram of a battery puncture test device provided in an embodiment of the present utility model.

[0027] Reference numerals

[0028] 10. Battery cells;

[0029] 100, upper fixture;

[0030] 200, lower fixture; 210, first through hole;

[0031] 300, elastic sensing component;

[0032] 400, lifting assembly;

[0033] 500, acupuncture assembly; 510, driving member; 520, telescopic rod; 530, steel needle;

[0034] 600, working platform; 610, second through hole;

[0035] 700, frame; 710, horizontal beam; 720, vertical beam. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0039] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0040] It should also be noted that, in the description of this utility model, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0042] The following describes embodiments of the present invention in detail. 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 intended only to explain the present invention and are not to be construed as limiting the present invention.

[0043] This embodiment provides a battery puncture test device, which can improve work efficiency, enhance the safety performance of the test, and reduce safety hazards.

[0044] like Figure 1 As shown, the battery puncture test device mainly includes an upper clamp 100, a lower clamp 200, an elastic sensor assembly 300, a lifting assembly 400, and a puncture assembly 500. The upper clamp 100 and the lower clamp 200 are arranged opposite each other. The elastic sensor assembly 300 is provided on the side of the upper clamp 100 facing the lower clamp 200 or on the side of the lower clamp 200 facing the upper clamp 100. The lower clamp 200 is used to place the battery cell 10. The lifting assembly 400 is connected to the upper clamp 100 and can drive the upper clamp 100 toward the battery cell 10 so that the upper clamp 100 and the lower clamp 200 jointly clamp the battery cell 10. The elastic sensor assembly 300 is configured to detect the clamping force of the battery cell 10. The puncture assembly 500 is connected to the upper clamp 100 and is configured to puncture the battery cell 10.

[0045] Based on the above design, when the battery puncture test device is working, the operator places the battery cell 10 on the lower clamp 200, and then starts the lifting assembly 400, so that the lifting assembly 400 drives the upper clamp 100 to move toward the direction close to the battery cell 10, so that the battery cell 10 can be clamped under the action of the upper clamp 100 and the lower clamp 200. At this time, the elastic sensing assembly 300 is deformed under the action of the upper clamp 100 and the lower clamp 200, and can detect the clamping force of the upper clamp 100 and the lower clamp 200 on the battery cell 10. The operator can judge whether the battery cell 10 is clamped and whether the clamping force meets the standard based on the clamping force detected by the elastic sensing assembly 300, and can then adjust the clamping force of the battery cell 10 again through the lifting movement of the lifting assembly 400. This eliminates the need for manual adjustment of the clamping force between the upper and lower clamps 100 and 200, as is required in the prior art. This improves operational efficiency, mitigates potential safety hazards associated with manual adjustment of the clamping force, and enhances test safety. Furthermore, the provision of elastic sensors improves test accuracy, reducing errors caused by manual clamping force adjustment in the prior art and improving test accuracy.

[0046] Optionally, the elastic sensor in this embodiment can be set on the side of the upper clamp 100 facing the lower clamp 200, or on the side of the lower clamp 200 facing the upper clamp 100. It is preferably set on the side of the upper clamp 100 facing the lower clamp 200, so that the elastic sensor component 300 can be in a vertical state under the action of gravity, that is, the length direction of the elastic sensor component 300 is perpendicular to the lower clamp 200 at this time, avoiding the elastic sensor component 300 from bending or collapsing, improving the accuracy of the elastic sensor component 300 in detecting the clamping force, and reducing errors. In addition, the elastic sensor component 300 is set on the upper clamp 100, which is also conducive to the placement of the battery cell 10 in the lower clamp 200, thereby avoiding the inconvenience caused by the elastic sensor component 300 being set on the lower clamp 200 to the operator in removing the battery cell 10, thereby improving work efficiency.

[0047] Optionally, in this embodiment, the elastic sensing assembly 300 includes a spring and a pressure sensor. The pressure sensor can be set to multiple, and the pressure sensors are set at both ends of the spring. The spring is connected to the upper clamp 100 or the lower clamp 200 through the pressure sensor. In the process of the upper clamp 100 and the lower clamp 200 clamping the battery cell 10, the pressure sensor can detect the pressure exerted on the spring. The operator can judge whether the clamping force meets the standard through the pressure value, which is conducive to the subsequent adjustment of the clamping force.

[0048] For example, the pressure sensor in this embodiment is a conventional component, so this embodiment will not further describe its working principle and specific structure.

[0049] It should be noted that the lifting assembly 400 in this embodiment is a component in the prior art, so this embodiment will not elaborate on its specific structure and working principle.

[0050] Optionally, in this embodiment, multiple elastic sensor components 300 are provided, and the multiple elastic sensor components 300 are all provided at the edge of the upper clamp 100, or the multiple elastic sensor components 300 are all provided at the edge of the lower clamp 200. This can minimize interference and collision between the elastic sensor components 300 and the battery cells 10, leaving sufficient space for the placement of the battery cells 10.

[0051] For example, the upper clamp 100 and the lower clamp 200 in this embodiment are both rectangular to fit most square lithium-ion batteries. Four elastic sensor components 300 are provided, and the four elastic sensor components 300 are respectively arranged at the four corners of the upper clamp 100.

[0052] Optionally, the battery penetration test apparatus in this embodiment further includes a pressure display (not shown), which is electrically connected to the elastic sensing assembly 300 and is used to display the clamping force applied to the battery cell 10. The pressure display allows the operator to intuitively obtain the clamping force value of the battery cell 10, and the operator can vertically adjust the lifting movement of the lifting assembly 400 based on the clamping force to ensure that the clamping force meets the required standards.

[0053] like Figure 1 As shown, in this embodiment, the puncture assembly 500 includes a driving member 510, a telescopic rod 520 and a steel needle 530. One end of the telescopic rod 520 is connected to the driving member 510, and the other end of the telescopic rod 520 is connected to the steel needle 530. The driving member 510 can drive the telescopic rod 520 to move so that the steel needle 530 can puncture the battery cell 10.

[0054] The arrangement of the drive member 510, the telescopic rod 520, and the steel needle 530 enables the steel needle 530 to repeatedly prick the battery cell 10 multiple times, thereby ensuring that the tested battery cell 10 is completely failed, reducing safety risks and improving safety performance. It should be noted that the operator can determine whether the battery cell 10 is completely failed based on the temperature line of the battery cell 10 displayed on the computer.

[0055] Optionally, the driving member 510 in this embodiment can be configured as a motor.

[0056] Optionally, the steel needle 530 in this embodiment is detachably connected to the other end of the telescopic rod 520. This facilitates the removal of the steel needle 530, allowing operators to equip and install different types of steel needles 530 according to different thicknesses of battery cells 10, thereby improving the flexibility and applicability of the battery puncture test device.

[0057] For example, the steel needle 530 may be threadedly connected to the other end of the telescopic rod 520 for easy disassembly.

[0058] like Figure 1 As shown, in this embodiment, the battery penetration test device further includes a working platform 600 , and the lower fixture 200 is placed on the working platform 600 .

[0059] Furthermore, the lower clamp 200 in this embodiment is provided with a first through hole 210, and the working platform 600 is provided with a second through hole 610. The first through hole 210 and the second through hole 610 are arranged opposite each other. The battery cell 10 is placed on the lower clamp 200 and covers the first through hole 210. The puncture assembly 500 is arranged opposite the first through hole 210.

[0060] The arrangement of the first through hole 210 and the second through hole 610 can leave movable space for the movement of the steel needle 530, making it easier for the steel needle 530 to completely penetrate the battery cell 10, thereby ensuring that the battery cell 10 completely fails as much as possible, reducing safety hazards and improving safety performance.

[0061] like Figure 1 As shown, the battery penetration test device in this embodiment further includes a frame 700 . The frame 700 is erected above the working platform 600 , and the lifting assembly 400 is connected to the frame 700 .

[0062] Furthermore, the frame 700 includes a horizontal beam 710 and a vertical beam 720. One end of the vertical beam 720 is connected to the working platform 600, and the other end of the vertical beam 720 is connected to the horizontal beam 710. The horizontal beam 710 is located above the working platform 600, and the lifting assembly 400 is connected to the horizontal beam 710. This makes the working platform 600 and the frame 700 form a whole, preventing relative shaking of the frame 700 and the working platform 600 during use, thereby improving the stability and reliability of the battery needle penetration test device.

[0063] Furthermore, a slide rail (not shown in the figure) is provided on the beam 710 in this embodiment, and the lifting assembly 400 is slidably connected to the slide rail, so that the lifting assembly 400 can move on the beam 710, and then drive the upper clamp 100 to move to the top of the lower clamp 200, so as to ensure that the steel needle 530 is facing the first through hole 210 of the lower clamp 200, so that the battery cell 10 can be penetrated, ensuring that the battery cell 10 is completely ineffective.

[0064] Obviously, the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

[0065] Note that throughout this specification, references to terms such as "some embodiments" and "other embodiments" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. Throughout this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. Battery puncture test device, characterized in that: include: An upper clamp (100) and a lower clamp (200), wherein the upper clamp (100) and the lower clamp (200) are arranged opposite to each other, an elastic sensing component (300) is provided on a side of the upper clamp (100) facing the lower clamp (200) or a side of the lower clamp (200) facing the upper clamp (100), and the lower clamp (200) is used to place the battery cell (10); a lifting assembly (400), the lifting assembly (400) being drivingly connected to the upper clamp (100), the lifting assembly (400) being capable of driving the upper clamp (100) to move toward the direction approaching the battery core (10), so that the upper clamp (100) and the lower clamp (200) jointly clamp the battery core (10), and the elastic sensing assembly (300) being configured to detect the clamping force of the battery core (10); A puncture assembly (500) is connected to the upper fixture (100), and the puncture assembly (500) is configured to puncture the battery cell (10).

2. The battery puncture test device according to claim 1, characterized in that: The elastic sensing components (300) are provided in plurality, and the plurality of elastic sensing components (300) are all provided at the edge of the upper clamp (100); Alternatively, a plurality of the elastic sensing components (300) are arranged at the edge of the lower clamp (200).

3. The battery puncture test device according to claim 1, characterized in that: The battery puncture test device further comprises a pressure display, which is electrically connected to the elastic sensor assembly (300) and is used to display the clamping force applied to the battery cell (10).

4. The battery puncture test device according to claim 1, characterized in that: The acupuncture assembly (500) comprises a driving member (510), a telescopic rod (520) and a steel needle (530), wherein one end of the telescopic rod (520) is connected to the driving member (510), and the other end of the telescopic rod (520) is connected to the steel needle (530), and the driving member (510) can drive the telescopic rod (520) to move so that the steel needle (530) can puncture the battery cell (10).

5. The battery puncture test device according to claim 4, characterized in that: The steel needle (530) is detachably connected to the other end of the telescopic rod (520).

6. The battery puncture test device according to any one of claims 1 to 5, characterized in that: The battery puncture test device further comprises a working platform (600), and the lower clamp (200) is placed on the working platform (600).

7. The battery puncture test device according to claim 6, characterized in that: The lower fixture (200) is provided with a first through hole (210), the working platform (600) is provided with a second through hole (610), the first through hole (210) and the second through hole (610) are arranged opposite each other, the battery cell (10) is placed on the lower fixture (200) and covers the first through hole (210), and the puncture assembly (500) is arranged opposite the first through hole (210).

8. The battery puncture test device according to claim 6, characterized in that: The battery puncture test device further comprises a frame (700), wherein the frame (700) is erected above the working platform (600), and the lifting assembly (400) is connected to the frame (700).

9. The battery puncture test device according to claim 8, characterized in that: The frame (700) includes a crossbeam (710) and a vertical beam (720), one end of the vertical beam (720) is connected to the working platform (600), and the other end of the vertical beam (720) is connected to the crossbeam (710), the crossbeam (710) is located above the working platform (600), and the lifting assembly (400) is connected to the crossbeam (710).

10. The battery puncture test device according to claim 9, characterized in that: A slide rail is provided on the crossbeam (710), and the lifting assembly (400) is slidably connected to the slide rail.

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