New energy battery overturning acupuncture test device

Abstract

The utility model discloses a new energy battery overturning and needling testing device, which relates to the technical field of new energy battery testing and comprises a base, an explosion-proof frame, extrusion mechanisms, an overturning mechanism and a needling mechanism, the explosion-proof frame is arranged on the base, the extrusion mechanisms are arranged on the left side and the right side of the explosion-proof frame in a penetrating manner, and the overturning mechanism and the needling mechanism are arranged on the base. Overturning mechanisms are arranged on the front side and the rear side of the explosion-proof frame in a penetrating mode, and a needling mechanism is arranged in the middle of the interior of the explosion-proof frame. The utility model has the advantages that the device is provided with the extrusion mechanism, the extrusion test is carried out before the acupuncture test of the battery pack, and the battery pack does not need to be switched among a plurality of test devices; according to the new energy battery multi-face acupuncture test device, the overturning mechanism is arranged, the battery pack after single-face test is completed can be overturned, the multi-face acupuncture test of the battery pack can be achieved without secondary clamping of the battery pack in cooperation with the acupuncture mechanism, and the efficiency of the new energy battery multi-face acupuncture test is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy battery testing, in particular to a new energy battery flip needle puncture testing device. Background Art

[0002] The needle penetration test is one of the necessary tests to determine whether new energy batteries are qualified. The needle penetration test simulates the deformation or puncture of the battery caused by external force collision, and at the same time obtains test data such as extrusion force, needle penetration force, battery voltage drop, battery surface temperature and battery deformation, etc., providing experimental data and basis for optimizing product design, as well as safety risk assessment and verification.

[0003] Patent document with publication number CN214584477U discloses a new energy battery needle puncture extrusion testing machine, including a test shell, a baffle fixedly installed on the left side wall of the inner cavity of the test shell, a cylinder fixedly installed on the right side wall of the inner cavity of the test shell, a hydraulic push rod fixedly installed on the top of the test shell that penetrates and extends into the interior of the test shell, a push seat fixedly installed on the bottom of the hydraulic push rod, and a needle-piercing part movably connected to the inner side of the push seat. After the battery is squeezed and clamped by the baffle and the cylinder, the hydraulic push rod can be started to push the needle-piercing part downward to start the test.

[0004] The existing technology similar to the above-mentioned new energy battery needle penetration extrusion testing machine currently has the following shortcomings: it is not convenient to perform multi-sided needle penetration testing on the battery, and the battery needs to be clamped twice when performing multi-sided needle penetration testing, which results in low test efficiency. Utility Model Content

[0005] The technical problem to be solved by the present invention is to improve the efficiency of multi-surface needle penetration testing of new energy batteries.

[0006] The utility model solves the above-mentioned technical problems through the following technical means: a new energy battery flip needle test device, including a base, an explosion-proof frame, a squeezing mechanism, a flipping mechanism and a puncture mechanism, the explosion-proof frame is provided on the base, the left and right sides of the explosion-proof frame are provided with squeezing mechanisms, the front and back sides of the explosion-proof frame are provided with flipping mechanisms, and the middle position of the interior of the explosion-proof frame is provided with a puncture mechanism.

[0007] The device is equipped with an extrusion mechanism to perform an extrusion test before the battery pack is punctured, without the need to transfer the battery pack between multiple testing devices; by setting a flipping mechanism, the battery pack can be flipped after completing the single-sided test. In combination with the puncture mechanism, the battery pack can be subjected to multi-sided puncture testing without the need for secondary clamping, thereby improving the efficiency of multi-sided puncture testing of new energy batteries.

[0008] As an optimized technical solution, the extrusion mechanism includes a first linear drive mechanism, a connecting plate, an assembly slide, a stop block, an extrusion block and an assembly slider; the first linear drive mechanism penetrates the explosion-proof frame in the left and right directions and a connecting plate is installed on the driving end located inside the explosion-proof frame; an assembly slide is provided on the side of the connecting plate facing away from the first linear drive mechanism, and a stop block is fixedly connected to a position on the connecting plate corresponding to one end of the assembly slide; an assembly slider is provided on the extrusion block, and the assembly slider is inserted into the assembly slide.

[0009] The connection mode of the assembly slider and the assembly slot allows the extrusion block to be disassembled and assembled by simply plugging and unplugging, making it easy to replace the corresponding extrusion block according to the actual battery size and shape being tested.

[0010] As an optimized technical solution, the extrusion mechanism further includes a guide column, and the connecting plate is fixedly connected to a guide column parallel to the first linear drive mechanism, and the guide column passes through the explosion-proof frame.

[0011] The guide column guides the movement of the connecting plate driven by the first linear drive mechanism, ensuring the stability of the extrusion block during the extrusion test on the battery and ensuring the test accuracy.

[0012] As an optimized technical solution, the flipping mechanism includes a second linear drive mechanism, a limit connecting block, a rotational drive mechanism, a fixed frame and a clamping mechanism. The second linear drive mechanism penetrates the explosion-proof frame in the front-to-back direction and the driving end located inside the explosion-proof frame is installed with a limit connecting block. The limit connecting block is installed on the rotational drive mechanism, the driving end of the rotational drive mechanism is installed with a fixed frame, and the clamping mechanism is installed on the fixed frame.

[0013] The second linear drive mechanism drives the limit connection block to move forward and backward, which can drive the clamping mechanism to move forward and backward, so that the clamping mechanism reaches the position of the battery pack to clamp the battery pack. The rotary drive mechanism drives the fixed frame to rotate, which can drive the clamping mechanism to rotate, thereby flipping the clamped battery pack.

[0014] As an optimized technical solution, the clamping mechanism includes a third linear drive mechanism, a sliding plate, a sliding clamping block, a driving slide groove and a positioning slot block; the third linear drive mechanism is fixedly connected to the fixed frame and along the front-rear direction, the driving end of the third linear drive mechanism is installed with a sliding plate; sliding clamping blocks are respectively provided on the left and right sides of the sliding plate, and the sliding clamping block is movably cooperated with the sliding plate along the left and right directions; the fixed frame is respectively fixedly connected to the left and right sides of the sliding plate with positioning slot blocks, and a limiting opening is formed between the positioning slot blocks, the width of which gradually decreases from one end close to the fixed frame to the end away from the fixed frame, and the sliding clamping block is located inside the limiting opening and movably cooperates with the positioning slot block on its outside along the front-rear direction.

[0015] The sliding plate is driven to move forward and backward by the third linear drive mechanism, which can drive the sliding clamping block to move forward and backward along the positioning slot block, thereby changing the spacing between the sliding clamping blocks on both sides of the sliding plate to achieve the effect of clamping the battery pack.

[0016] As an optimized technical solution, the clamping mechanism further includes a driving slide groove, and the sliding clamp block is provided with a driving slide groove extending in the left and right directions, and the driving slide groove is slidably matched with the sliding plate.

[0017] The sliding block and the sliding plate are driven to slide together to achieve the movable cooperation between the sliding block and the sliding plate in the left and right directions, thereby ensuring the stability of the movement of the sliding block.

[0018] As an optimized technical solution, the clamping mechanism further includes a connecting slider, the outer side of the sliding clamp block is fixedly connected with a connecting slider, and the connecting slider is slidably matched with the inner side of the positioning groove block.

[0019] The sliding block and the positioning slot block are connected to each other in a sliding manner to achieve the movable cooperation between the sliding clamp block and the positioning slot block along the front-back direction, thereby ensuring the stability of the movement of the sliding clamp block.

[0020] As an optimized technical solution, the flipping mechanism further includes an infrared sensor, and infrared sensors are respectively installed on both sides of the clamping mechanism.

[0021] The infrared sensor is used to detect the battery pack placed between the two flipping mechanisms. After detecting the battery pack, the two clamping mechanisms are controlled to clamp the front and rear ends of the battery pack.

[0022] As an optimized technical solution, the flipping mechanism further includes a guide slider and a guide rail, and the left and right ends of the position-limiting connecting block are respectively slidably engaged with the guide rail fixedly connected to the base through the guide slider.

[0023] The guide slide block and the guide rail play a guiding role in the movement of the limit connection block driven by the second linear drive mechanism, thereby ensuring the stability of the movement of the limit connection block.

[0024] As an optimized technical solution, the acupuncture mechanism includes a lifting seat and a needling plate. The lifting seat is fixedly connected to the base, and the lifting end of the lifting seat is equipped with a needling plate.

[0025] When performing a needle penetration test on a battery pack, the lifting seat drives the needle penetration plate to rise. After completing the single-sided needle penetration test, the lifting seat drives the needle penetration plate to descend to facilitate the flipping of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a top view schematic diagram of the new energy battery flip needle penetration test device according to an embodiment of the present utility model.

[0027] Figure 2 It is an enlarged schematic diagram of point A of the new energy battery flip needle penetration test device according to an embodiment of the present utility model.

[0028] Figure 3 It is an axonometric diagram of the connecting plate, the assembly slide groove and the stop block according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0029] 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 embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0030] like Figures 1 to 3 As shown, an embodiment of the utility model discloses a new energy battery flip needle puncture test device, which includes a base 1, an explosion-proof frame 2, an extrusion mechanism 3, a flip mechanism 4 and a puncture mechanism 5.

[0031] The top surface of the base 1 is fixedly connected to an explosion-proof frame 2, the left and right sides of the explosion-proof frame 2 are provided with squeezing mechanisms 3, the front and back sides of the explosion-proof frame 2 are provided with turning mechanisms 4, and the middle position of the explosion-proof frame 2 is provided with a puncture mechanism 5.

[0032] The extrusion mechanism 3 includes a first linear drive mechanism 31, a connecting plate 32, an assembly slide 33, a stopper 34, an extrusion block 35, an assembly slider 36 and a guide column 37; the first linear drive mechanism 31 adopts a cylinder, and the first linear drive mechanism 31 passes through the explosion-proof frame 2 in the left and right directions and is installed with a connecting plate 32 at the driving end inside the explosion-proof frame 2; a vertical assembly slide 33 is opened on the side of the connecting plate 32 facing away from the first linear drive mechanism 31, and the bottom of the connecting plate 32 is fixedly connected to the position corresponding to the bottom end of the assembly slide 33 with a stopper 34; an assembly slider 36 is integrally connected to the extrusion block 35, and the assembly slider 36 is inserted into the assembly slide 33 so that the extrusion block 35 is installed on the connecting plate 32, and the assembly slider 36 cooperates with the connection method of the assembly slide 33 The design allows for the extrusion block 35 to be assembled and disassembled by simply plugging and unplugging, making it easy to replace the corresponding extrusion block 35 according to the size and shape of the battery actually being tested; the connecting plate 32 is located on the left and right sides of the first linear drive mechanism 31, respectively fixedly connected with guide columns 37 parallel to the first linear drive mechanism 31. The guide columns 37 penetrate the explosion-proof frame 2, and the guide columns 37 guide the movement of the connecting plate 32 driven by the first linear drive mechanism 31. At the same time, there is a certain damping between the assembly slot 33 and the assembly slider 36, which ensures the stability of the extrusion block 35 during the extrusion test of the battery and ensures the test accuracy; the extrusion mechanism 3 realizes the extrusion test before the battery pack acupuncture test, and there is no need to switch the battery pack between multiple test devices.

[0033] The flip mechanism 4 includes a second linear drive mechanism 41, a limit connection block 42, a guide slider 43, a guide rail 44, a rotation drive mechanism 45, a fixing frame 46, a clamping mechanism 47 and an infrared sensor 48; each set of the second linear drive mechanism 41 includes two cylinders symmetrically arranged in the left and right directions, and the second linear drive mechanism 41 passes through the explosion-proof frame 2 in the front and back directions and is installed with a limit connection block 42 at the driving end located inside the explosion-proof frame 2; the left and right ends of the limit connection block 42 are respectively slidably matched with the guide rail 44 fixedly connected to the base 1 through the guide slider 43, and a rotation drive mechanism 45 is installed in the middle position of the limit connection block 42; the rotation drive mechanism 45 adopts Synchronous motor, the driving end of the rotary drive mechanism 45 is installed with a fixed frame 46; the fixed frame 46 is a square frame structure, and a clamping mechanism 47 is installed in the middle position of the fixed frame 46, and infrared sensors 48 are installed on the left and right sides of the clamping mechanism 47 respectively; the second linear drive mechanism 41 drives the limit connection block 42 to move forward and backward, which can drive the clamping mechanism 47 to move forward and backward, so that the clamping mechanism 47 reaches the position where the battery pack is located to clamp the battery pack, and the rotary drive mechanism 45 drives the fixed frame 46 to rotate, which can drive the clamping mechanism 47 to rotate, thereby realizing the flipping of the clamped battery pack, and the infrared sensor 48 is used to detect the battery pack placed between the two flipping mechanisms 4.

[0034] The clamping mechanism 47 includes a third linear drive mechanism 471, a sliding plate 472, a sliding clamping block 473, a driving slide 474, a positioning slot block 475 and a connecting slider 476; the third linear drive mechanism 471 adopts a cylinder, and the third linear drive mechanism 471 is fixedly connected to the fixed frame 46 and along the front-back direction, and the driving end of the third linear drive mechanism 471 is installed with a sliding plate 472; sliding clamping blocks 473 are respectively provided on the left and right sides of the sliding plate 472, and a driving slide 474 extending along the left and right directions is opened on the sliding clamping block 473, and the driving slide 474 slides with the sliding plate 472 to realize the sliding cooperation between the sliding clamping block 473 and the sliding plate 472 in the left and right directions; the fixed frame 46 is fixedly connected to the left and right sides of the sliding plate 472 with positioning slot blocks 475, and a space close to the fixed frame 46 is formed between the positioning slot blocks 475. The width of the limiting opening gradually decreases from one end to the end away from the fixed frame 46, and the sliding clamp 473 is located inside the limiting opening. The outer side of the sliding clamp 473 is fixedly connected to a connecting slider 476, and the connecting slider 476 slides with the inner side of the positioning slot block 475 to achieve sliding cooperation between the sliding clamp 473 and the positioning slot block 475 on its outer side in the front-to-back direction; the sliding plate 472 is driven to move back and forth by the third linear drive mechanism 471, which can drive the sliding clamp 473 to slide back and forth along the positioning slot block 475, thereby changing the spacing between the sliding clamps 473 on both sides of the sliding plate 472, thereby achieving the effect of clamping the battery pack; the clamping mechanism 47 has a simple and stable structure. After clamping the battery pack, it cooperates with the rotating drive mechanism 45 to drive the fixed frame 46 to rotate, thereby achieving the effect of flipping the battery pack, and then cooperates with the acupuncture mechanism 5 to achieve acupuncture testing on different surfaces of the battery pack.

[0035] The acupuncture mechanism 5 includes a lifting seat 51 and acupuncture plate 52 . The lifting seat 51 is fixedly connected to the top surface of the base 1 , and the lifting end of the lifting seat 51 is equipped with the acupuncture plate 52 .

[0036] Working principle: When in use, first place the battery pack to be tested between the two flipping mechanisms 4. After the infrared sensors 48 of the two flipping mechanisms 4 detect the battery pack, they control the two clamping mechanisms 47 to clamp the front and rear ends of the battery pack; after completing the clamping of the battery pack, the battery pack is subjected to an extrusion test before the puncture test through the extrusion mechanism 3; after completing the extrusion test, the rotary drive mechanisms 45 of the two flipping mechanisms 4 synchronously drive the fixed frame 46 to rotate, flip the battery pack 90°, and the lifting seat 51 drives the puncture plate 52 to rise, and the battery pack is subjected to a puncture test; after completing the single-sided puncture test, the lifting seat 51 drives the puncture plate 52 to descend, and the rotary drive mechanisms 45 of the two flipping mechanisms 4 synchronously drive the fixed frame 46 to rotate again, flipping the battery pack 180°, and the lifting seat 51 drives the puncture plate 52 to rise again to perform a puncture test on the other side.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A new energy battery flip needle test device, characterized by: It includes a base, an explosion-proof frame, a squeezing mechanism, a flipping mechanism and a puncture mechanism. The explosion-proof frame is provided on the base, the squeezing mechanisms are provided on the left and right sides of the explosion-proof frame, the flipping mechanisms are provided on the front and back sides of the explosion-proof frame, and the puncture mechanism is provided in the middle of the explosion-proof frame. The extrusion mechanism includes a first linear drive mechanism, a connecting plate, an assembly slide, a stopper, an extrusion block and an assembly slider; the first linear drive mechanism passes through the explosion-proof frame in the left-right direction and is installed on the driving end located inside the explosion-proof frame; an assembly slide is provided on the side of the connecting plate facing away from the first linear drive mechanism, and a stopper is fixedly connected to a position on the connecting plate corresponding to one end of the assembly slide; an assembly slider is provided on the extrusion block, and the assembly slider is inserted into the assembly slide; The flipping mechanism includes a second linear drive mechanism, a limit connection block, a rotary drive mechanism, a fixed frame and a clamping mechanism. The second linear drive mechanism passes through the explosion-proof frame in the front-to-back direction and the drive end located inside the explosion-proof frame is installed with a limit connection block. The limit connection block is installed on the rotary drive mechanism. The drive end of the rotary drive mechanism is installed with a fixed frame, and the fixed frame is installed with the clamping mechanism. The acupuncture mechanism comprises a lifting seat and acupuncture plates. The lifting seat is fixedly connected to the base, and the lifting end of the lifting seat is provided with the acupuncture plates.

2. The new energy battery flip needle penetration test device according to claim 1, characterized in that: The extrusion mechanism further includes a guide column. The connecting plate is fixedly connected to a guide column parallel to the first linear drive mechanism, and the guide column passes through the explosion-proof frame.

3. The new energy battery flip needle penetration test device according to claim 1, characterized in that: The locking mechanism comprises a third linear drive mechanism, a sliding plate, a sliding clamping block, a driving slide and a positioning slot block; the third linear drive mechanism is fixedly connected to the fixed frame and is arranged along the front-rear direction, and the sliding plate is installed at the driving end of the third linear drive mechanism; sliding clamping blocks are respectively provided on the left and right sides of the sliding plate, and the sliding clamping block is movably matched with the sliding plate along the left and right directions; the left and right sides of the sliding plate on the fixed frame are respectively fixedly connected to the positioning slot blocks, and a limiting opening is formed between the positioning slot blocks, the width of which gradually decreases from one end close to the fixed frame to the end away from the fixed frame, and the sliding clamping block is located inside the limiting opening and movably matched with the positioning slot block on its outside along the front-rear direction.

4. The new energy battery rollover needle penetration test device according to claim 3, characterized in that: The clamping mechanism further comprises a driving slide groove. The sliding clamp block is provided with a driving slide groove extending in the left-right direction. The driving slide groove is slidably matched with the sliding plate.

5. The new energy battery flip needle penetration test device according to claim 3, characterized in that: The clamping mechanism further comprises a connecting slider, the outer side of the sliding clamp block is fixedly connected with the connecting slider, and the connecting slider is slidably matched with the inner side of the positioning groove block.

6. The new energy battery rollover needle penetration test device according to claim 1, characterized in that: The flipping mechanism further includes an infrared sensor, and infrared sensors are respectively installed on both sides of the clamping mechanism.

7. The new energy battery rollover needle penetration test device according to claim 1, characterized in that: The flip mechanism further comprises a guide slider and a guide rail. The left and right ends of the position-limiting connecting block are respectively slidably matched with the guide rail fixedly connected to the base through the guide slider.

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