Battery extrusion acupuncture test device

Abstract

The utility model provides a battery extrusion needling testing device. The battery extrusion needling testing device comprises a base, an extrusion head, a needling base and a needling head, the extrusion head is arranged on the base, the first end and the second end of the needling base are arranged on the base, the extrusion head is located between the base and the needling base, and the needling head is arranged in the middle of the side, away from the extrusion head, of the needling base. According to the battery extrusion acupuncture test device, the first end and the second end of the acupuncture base are respectively arranged on the base, the extrusion head is arranged between the base and the acupuncture base, and the acupuncture head is arranged in the middle of one side, far away from the extrusion head, of the acupuncture base; the battery extrusion acupuncture test device can carry out acupuncture test under the condition that the extrusion head is not detached, the efficiency of changing the operation head is improved, and the operation safety of operators is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium ion battery detection, in particular to a battery extrusion needle puncture test device. Background Art

[0002] Lithium-ion batteries need to pass various safety tests before and after the design and production process, such as extrusion tests and needle puncture tests. The existing technology usually uses a power device to cooperate with an operating head to perform extrusion tests and needle puncture tests. Different types of operating heads need to be replaced when performing different types of tests. For example, if a needle puncture test is required after an extrusion test, the extrusion head needs to be replaced with a needle puncture head. However, due to the heavy weight of the extrusion head, there are problems of low efficiency and insufficient safety when replacing the operating head. Utility Model Content

[0003] The utility model aims to provide a battery extrusion puncture test device to solve the technical problems of low efficiency and insufficient safety when replacing an operating head in the prior art.

[0004] The technical solution of the utility model is as follows, providing a battery extrusion acupuncture test device, including a base, an extrusion head, a puncture base and a puncture head;

[0005] The extrusion head is arranged on the base, the first end and the second end of the acupuncture base are respectively arranged on the base, the extrusion head is located between the base and the acupuncture base, and the acupuncture head is arranged on the middle part of the acupuncture base away from the extrusion head.

[0006] Furthermore, the base includes a web and a first flange plate and a second flange plate arranged in parallel at both ends of the web, and the extrusion head is a semi-cylindrical structure, and a rectangular surface of the extrusion head is connected to a first end surface of the first flange plate.

[0007] Furthermore, the acupuncture base is an arch structure, the first end and the second end of the acupuncture base are two arch feet of the acupuncture base, the first end and the second end of the acupuncture base are respectively connected to the first side surface of the first flange plate and the second side surface of the first flange plate, the first side surface and the second side surface are arranged opposite to each other, and the acupuncture head is arranged on the arch top of the acupuncture base.

[0008] Furthermore, the curvature of the curved surface of the acupuncture base close to the extrusion head is consistent with the curvature of the curved surface of the extrusion head.

[0009] Furthermore, a first threaded hole is provided in the middle of the acupuncture base away from the extrusion head, and a first bolt is provided at the end of the acupuncture head facing away from the acupuncture end. The first bolt cooperates with the first threaded hole to fix the acupuncture head on the acupuncture base.

[0010] Furthermore, the base also includes a plurality of support blocks, a first side surface of the support block is connected to the web plate, and a second side surface of the support block is connected to the first flange plate or the second flange plate.

[0011] Furthermore, the base includes 8 support blocks, wherein 2 of the support blocks connect the first end surface of the web and the second end surface of the first flange plate, 2 of the support blocks connect the first end surface of the web and the first end surface of the second flange plate, 2 of the support blocks connect the second end surface of the web and the second end surface of the first flange plate, and 2 of the support blocks connect the second end surface of the web and the first end surface of the second flange plate.

[0012] Furthermore, the battery extrusion puncture test device includes a second bolt, and the first flange plate is provided with a second threaded hole, and the second threaded hole and the second bolt cooperate to connect the extrusion head to the first end surface of the first flange plate.

[0013] Furthermore, the first end of the acupuncture base is connected to the first side surface of the first flange plate through a third bolt, and the second end of the acupuncture base is connected to the second side surface of the first flange plate through a fourth bolt.

[0014] Furthermore, the second flange plate is provided with a third threaded hole for connecting with the power device.

[0015] The beneficial effects of the utility model are as follows: by respectively arranging the first end and the second end of the puncture base on the base, arranging the extrusion head between the base and the puncture base, and arranging the puncture head at the middle of the puncture base away from the extrusion head, the battery extrusion puncture test device can perform puncture test without removing the extrusion head, thereby improving the efficiency of changing the operating head and the operating safety of the operator; thereafter, the extrusion test can be performed by simply removing the puncture base, thereby further improving the efficiency of changing the operating head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first structural schematic diagram of the battery extrusion puncture test device of the utility model;

[0017] Figure 2 This is a second structural schematic diagram of the battery extrusion puncture test device of the utility model.

[0018] Figure numerals: 10 - base; 11 - web; 12 - first flange plate; 13 - second flange plate; 14 - support block; 20 - extrusion head; 30 - acupuncture base; 40 - acupuncture head; 121 - second threaded hole; 131 - third threaded hole; 301 - fourth threaded hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] Figure 1 1 is a schematic diagram of the first structure of the battery extrusion needle puncture test device of the embodiment of the utility model. It should be noted that if there are substantially the same results, the utility model is not based on Figure 1 The structure shown is limited. Figure 1 As shown, the battery extrusion puncture test device includes a base 10, an extrusion head 20, a puncture base 30 and a puncture head 40;

[0022] The extrusion head 20 is disposed on the base 10, the first end and the second end of the acupuncture base 30 are respectively disposed on the base 10, the extrusion head 20 is located between the base 10 and the acupuncture base 30, and the acupuncture head 40 is disposed on the middle part of the acupuncture base 30 away from the extrusion head 20.

[0023] In this embodiment, the extrusion head 20 is arranged on the base 10, and the battery to be tested can be subjected to an extrusion test. When the battery to be tested needs to be subjected to a needle puncture test, there is no need to remove the extrusion head 20. The needle puncture base 30 can be placed on the base 10 over the extrusion head 20, and the needle puncture head 40 can be placed on the needle puncture base 30 to perform a needle puncture test on the battery to be tested. If the battery to be tested needs to be subjected to an extrusion test again, the needle puncture base 30 can be removed.

[0024] The battery extrusion puncture test device of the present embodiment can perform puncture tests without removing the extrusion head 20, thereby improving the efficiency of changing the operating head and the operating safety of the operator; thereafter, the extrusion test can be performed by simply removing the puncture base 30, further improving the efficiency of changing the operating head.

[0025] In some embodiments, the base 10 includes a web 11 and a first flange plate 12 and a second flange plate 13 arranged parallel to both ends of the web 11 . The extrusion head 20 is a semi-cylindrical structure, and the rectangular surface of the extrusion head 20 is connected to the first end surface of the first flange plate 12 .

[0026] In this embodiment, the web 11, the first flange plate 12, and the second flange plate 13 form a structure with an I-shaped cross section, and the rectangular surface of the extrusion head 20 is connected to the first end surface of the first flange plate 12. Specifically, the radius of the semicircular surface of the semi-cylindrical extrusion head 20 in this embodiment can be 75 mm, and the width of the first end surface of the first flange plate 12 is slightly greater than 150 mm.

[0027] In a specific embodiment, when performing an extrusion test, the second flange plate 13 can be connected to a power device, and the power generated by the power device is sequentially transmitted to the extrusion head 20 through the second flange plate 13, the web 11, and the first flange plate 12 to complete the extrusion test.

[0028] In some embodiments, Figure 1 As shown, the acupuncture base 30 is an arch structure, and the first end and the second end of the acupuncture base 30 are two arch feet of the acupuncture base 30. The first end and the second end of the acupuncture base 30 are respectively connected to the first side surface of the first flange plate 12 and the second side surface of the first flange plate 12, the first side surface and the second side surface are arranged opposite to each other, and the acupuncture head 40 is arranged on the arch top of the acupuncture base 30.

[0029] In this embodiment, the puncture base 30 is an arched structure, and the first end and the second end of the puncture base 30 are connected to the first side surface of the first flange plate 12 and the second side surface of the first flange plate 12, that is, the puncture base 30 is arranged on the base 10 over the extrusion head 20, and the puncture head 40 is arranged on the arch of the puncture base 30, so that the battery extrusion puncture test device can be converted from the extrusion test state to the puncture test state. Without removing the extrusion head 20, the puncture base 30 is directly installed on the first flange plate 12, which can provide greater force, improve the efficiency of puncture, improve safety, and reduce resource waste.

[0030] In some embodiments, Figure 1 As shown, the curvature of the curved surface of the acupuncture base 30 close to the extrusion head 20 is consistent with the curvature of the curved surface of the extrusion head 20 .

[0031] In this embodiment, the curvature of the curved surface of the puncture base 30 close to the extrusion head 20 is consistent with the curvature of the curved surface of the extrusion head 20, so that after the puncture base 30 is installed on the base, it can completely fit the extrusion head 20, thereby enhancing the overall structural stability of the battery extrusion puncture test device.

[0032] In some embodiments, a first threaded hole is provided in the middle of the acupuncture base 30 away from the extrusion head 20, and a first bolt is provided at the end of the acupuncture head 40 facing away from the acupuncture end, and the first bolt cooperates with the first threaded hole to fix the acupuncture head 40 on the acupuncture base 30. Figure 1 The first threaded hole and the first bolt are not clearly shown.

[0033] In this embodiment, the acupuncture head 40 is connected to the acupuncture base 30 by threads, which can ensure that the acupuncture head 40 is stably arranged on the acupuncture base 30, facilitating subsequent work.

[0034] In some embodiments, Figure 1 As shown, the base further includes a plurality of support blocks 14 , wherein a first side surface of the support block 14 is connected to the web 11 , and a second side surface of the support block 14 is connected to the first flange plate 12 or the second flange plate 13 .

[0035] In this embodiment, the first flange plate 12 and the web plate 11 of the base are connected by the support block 14, or the second flange plate 13 and the web plate 11 of the base are connected, so that the structural stability of the base can be enhanced and the overall strength can be improved.

[0036] In some embodiments, Figure 1 As shown, the base includes 8 support blocks 14, wherein 2 of the support blocks 14 connect the first end surface of the web 11 and the second end surface of the first flange plate 12, 2 of the support blocks 14 connect the first end surface of the web 11 and the first end surface of the second flange plate 13, 2 of the support blocks 14 connect the second end surface of the web 11 and the second end surface of the first flange plate 12, and 2 of the support blocks 14 connect the second end surface of the web 11 and the first end surface of the second flange plate 13.

[0037] In this embodiment, eight support blocks 14 are evenly distributed between the first flange plate 12 , the second flange plate 13 and the web plate 11 , which can further enhance the structural stability of the base and improve the overall strength.

[0038] In some embodiments, a second structural schematic diagram of the battery extrusion puncture test device of the present invention is as follows: Figure 2 As shown, the battery extrusion puncture test device includes a second bolt, and the first flange plate 12 is provided with a second threaded hole 121 . The second threaded hole 121 and the second bolt cooperate to connect the extrusion head 20 to the first end surface of the first flange plate 12 .

[0039] In this embodiment, the extrusion head 20 is connected to the first end surface of the first flange plate 12 through the second threaded hole 121 and the second bolt, wherein the second bolt is a bolt corresponding to the second threaded hole 121. Figure 2 The second bolt is not clearly shown. The extrusion head 20 is fixed to the first end surface of the first flange plate 12 through the second bolt and the second threaded hole 121, so that the battery extrusion needle test device can perform an extrusion test on the battery to be tested.

[0040] In some embodiments, Figure 2 As shown, the first end of the acupuncture base 30 is connected to the first side surface of the first flange plate 12 through a third bolt, and the second end of the acupuncture base 30 is connected to the second side surface of the first flange plate 12 through a fourth bolt.

[0041] In this embodiment, the first end of the acupuncture base 30 and the first side surface of the first flange plate 12 respectively include two fourth threaded holes 301 that can cooperate with the third bolt. The first end of the acupuncture base 30 can be fixed to the first side surface of the first flange plate 12 by cooperating with the third bolt and the fourth threaded hole 301.

[0042] As an implementation method, the specification of the fourth bolt may be the same as that of the third bolt. Figure 2 The third bolt and the fourth bolt are not clearly shown, and the second end of the acupuncture base 30 and the second side of the first flange plate 12 respectively include a fourth threaded hole 301 that can cooperate with the fourth bolt. The second end of the acupuncture base 30 can be fixed to the second side of the first flange plate 12 by cooperating with the fourth bolt and the fourth threaded hole 301.

[0043] In some embodiments, Figure 2 As shown, the second flange plate 13 is provided with a third threaded hole 131 for connecting with the power device.

[0044] In this embodiment, the third threaded hole 131 is used to connect the base 10 with an external power device. The external power device can be a hydraulic power device to provide power for the battery extrusion acupuncture device of the present invention.

[0045] The battery extrusion puncture device provided by the utility model can perform puncture test without removing the extrusion head 20 by respectively arranging the first end and the second end of the puncture base 30 on the base 10, arranging the extrusion head 20 between the base 10 and the puncture base 30, and arranging the puncture head 40 on the middle part of the puncture base 30 away from the extrusion head 20, thereby improving the efficiency of changing the operating head and the operating safety of the operator; thereafter, the extrusion test can be performed by simply removing the puncture base 30, further improving the efficiency of changing the operating head.

[0046] The above is only an implementation method of the present invention. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present invention, but these improvements are all within the protection scope of the present invention.

Claims

1. A battery extrusion puncture test device, characterized in that: It includes a base, an extrusion head, an acupuncture base and an acupuncture head; The extrusion head is arranged on the base, the first end and the second end of the acupuncture base are respectively arranged on the base, the extrusion head is located between the base and the acupuncture base, and the acupuncture head is arranged on the middle part of the acupuncture base away from the extrusion head.

2. The battery extrusion puncture test device according to claim 1, characterized in that: The base includes a web and a first flange plate and a second flange plate which are arranged in parallel at both ends of the web. The extrusion head is a semi-cylindrical structure, and a rectangular surface of the extrusion head is connected to a first end surface of the first flange plate.

3. The battery extrusion puncture test device according to claim 2, characterized in that: The acupuncture base is an arch structure, and the first end and the second end of the acupuncture base are two arch feet of the acupuncture base. The first end and the second end of the acupuncture base are respectively connected to the first side surface of the first flange plate and the second side surface of the first flange plate, the first side surface and the second side surface are arranged opposite to each other, and the acupuncture head is arranged on the arch top of the acupuncture base.

4. The battery extrusion puncture test device according to claim 3, characterized in that: The curvature of the curved surface of the acupuncture base close to the extrusion head is consistent with the curvature of the curved surface of the extrusion head.

5. The battery extrusion puncture test device according to claim 1, characterized in that: A first threaded hole is provided in the middle of the acupuncture base away from the extrusion head, and a first bolt is provided at the end of the acupuncture head facing away from the acupuncture end. The first bolt cooperates with the first threaded hole to fix the acupuncture head on the acupuncture base.

6. The battery extrusion puncture test device according to claim 2, characterized in that: The base further comprises a plurality of support blocks, wherein a first side surface of the support block is connected to the web plate, and a second side surface of the support block is connected to the first flange plate or the second flange plate.

7. The battery extrusion puncture test device according to claim 6, characterized in that: The base includes 8 support blocks, wherein 2 of the support blocks connect the first end surface of the web and the second end surface of the first flange plate, 2 of the support blocks connect the first end surface of the web and the first end surface of the second flange plate, 2 of the support blocks connect the second end surface of the web and the second end surface of the first flange plate, and 2 of the support blocks connect the second end surface of the web and the first end surface of the second flange plate.

8. The battery extrusion puncture test device according to claim 2, characterized in that: The battery extrusion puncture test device comprises a second bolt, a second threaded hole is arranged on the first flange plate, and the second threaded hole and the second bolt cooperate to connect the extrusion head to the first end surface of the first flange plate.

9. The battery extrusion puncture test device according to claim 3, characterized in that: The first end of the acupuncture base is connected to the first side surface of the first flange plate through a third bolt, and the second end of the acupuncture base is connected to the second side surface of the first flange plate through a fourth bolt.

10. The battery extrusion puncture test device according to claim 2, characterized in that: The second flange plate is provided with a third threaded hole for connecting with a power device.

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