Detection tool for needling on side surface of battery

Abstract

The invention relates to the technical field of new energy battery safety detection, in particular to a detection tool for needling on the side face of a battery. The detection tool comprises a placement table, a placement bottom plate, an anti-explosion barrel, a needling movement mechanism and a jacking movement mechanism, and primary positioning of a to-be-detected square-shell battery is achieved through two symmetrically-arranged clamping plates; the square shell battery is covered with the anti-explosion barrel, detection openings in the two sides of the anti-explosion barrel provide channels for the pricking needle and the back shore correspondingly, and the pricking needle movement mechanism and the back shore movement mechanism cooperatively work through a first movement platform, a first telescopic push rod, a second movement platform and a second telescopic push rod correspondingly; by the adoption of the structure, under the cooperation of clamping plate fixing, reverse supporting of the jacking and supporting movement mechanism and anti-explosion barrel limiting, it is guaranteed that the battery does not displace in the puncturing process, the puncturing angle is perpendicular to the surface of the battery all the time, and test data are more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy battery safety detection, and in particular to a detection tool for battery side acupuncture. Background Art

[0002] With the rapid development of the new energy industry, prismatic batteries (PSBs) are widely used in electric vehicles, energy storage systems, and other fields due to their high energy density and structural stability. However, under extreme operating conditions (such as mechanical abuse and thermal runaway), prismatic batteries can experience internal short circuits, leading to thermal runaway and even explosion. The needle penetration test is an important testing method for simulating internal short circuits in prismatic batteries. By puncturing the battery with a steel needle, a short circuit is triggered and the safety performance is evaluated.

[0003] However, at present, most of the inspection tools for battery puncture tests use single-point clamping or simple brackets to fix the battery. During puncture, the battery is prone to displacement or tipping over, resulting in puncture angle deviation and affecting the accuracy of the test data. Summary of the Invention

[0004] The purpose of the present invention is to provide a detection tool for battery side needle penetration, which solves the problem that the detection tool for battery needle penetration test in the prior art mostly uses single-point clamping or simple brackets to fix the battery. During the needle penetration, the battery is easily displaced or tilted, resulting in puncture angle deviation and affecting the accuracy of the test data.

[0005] To achieve the above objectives, the present invention provides a testing tool for battery side acupuncture, comprising a placement table, a placement base, an explosion-proof barrel, a puncture motion mechanism, and a support motion mechanism. The placement base is placed on the upper surface of the placement table, two clamping plates are symmetrically arranged on the placement base, and a battery to be tested is placed between the two clamping plates. The explosion-proof barrel is mounted on the placement base, and the explosion-proof barrel is arranged outside the battery to be tested. Both sides of the explosion-proof barrel are provided with testing openings. The acupuncture motion mechanism and the supporting motion mechanism are respectively provided on both sides of the placement table. The acupuncture motion mechanism consists of a first motion platform with X-axis and Z-axis motion, a first telescopic push rod installed at an angle of 45° at the output end of the first motion platform, and a needle installed at the output end of the first telescopic push rod. The supporting motion mechanism consists of a second motion platform with X-axis and Z-axis motion, a second telescopic push rod installed at an angle of 45° at the output end of the second motion platform, and a supporting plate installed at the output end of the second telescopic push rod.

[0006] Among them, the first motion platform and the second motion platform both include a horizontal electric slide, a vertical electric slide and a mounting frame. The horizontal electric slide is horizontally arranged on the side of the placement platform. The output end of the horizontal electric slide is provided with the vertical electric slide. The vertical electric slide moves horizontally along the X-axis direction. The output end of the vertical electric slide is provided with the mounting frame. The mounting frame moves vertically along the Z-axis direction. The corresponding first telescopic push rod and second telescopic push rod are installed on the mounting frame.

[0007] Among them, the explosion-proof barrel includes a cylinder and a top cover, the top of the cylinder is fixedly connected to the top cover, first fixing holes are provided on both sides of the top cover, and multiple second fixing holes are evenly provided on the periphery of the base plate, and connecting screws are installed between the second fixing holes corresponding to the first fixing holes.

[0008] There are two first fixing holes on both sides of the top cover, and each of the first fixing holes is provided with the connecting screw.

[0009] Among them, each of the connecting screws includes a rod body, a first connecting head, a second connecting head and a fixing bolt. The first connecting head and the second connecting head are respectively provided at both ends of the rod body. The first connecting head is inserted into the corresponding second fixing hole. The second connecting head passes through the first fixing hole and extends to the upper surface of the top cover. The fixing bolt is connected to the second connecting head.

[0010] Wherein, disassembly handles are provided on both sides of the upper surface of the top cover.

[0011] Among them, each of the mounting frames includes a fixing plate and a mounting plate, the fixing plate is installed at the output end of the corresponding vertical electric slide, the mounting plate is fixedly connected to the top end of the fixing plate, and is located on the side of the fixing plate away from the output end of the vertical electric slide, and is perpendicular to the fixing plate, and a mounting boss is provided at the center of the upper surface of the mounting plate, and the corresponding first telescopic push rod and second telescopic push rod are installed on the mounting boss.

[0012] The present invention provides a detection tool for battery side acupuncture, comprising a placement platform, a placement base, an explosion-proof barrel, a puncture motion mechanism, and a support motion mechanism. The square shell battery to be tested is placed on the placement base, and preliminary positioning is achieved by two symmetrically arranged clamping plates; the explosion-proof barrel cover is arranged on the outside of the square shell battery, and the detection openings on both sides thereof provide channels for acupuncture and support, respectively. The puncture motion mechanism and the support motion mechanism work together through the first motion platform, the first telescopic push rod, the second motion platform, and the second telescopic push rod, respectively, and the puncture needle vertically punctures the square shell. When the battery is on the side, the top support plate on the opposite side synchronously presses against the battery to form a two-way mechanical balance, and the explosion-proof barrel can be removed from the placement base, rotated, and the position of the detection opening can be adjusted. The puncture movement mechanism and the top support movement mechanism can be used to cooperate with each other to perform puncture detection on other positions on the side of the square shell battery. With the above structure, through the fixation of the splint, the reverse support of the top support movement mechanism and the cooperation of the explosion-proof barrel limiter, it is ensured that the battery will not be displaced during the puncture process, and the puncture angle is always perpendicular to the battery surface, making the test data more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 these drawings without paying any creative work.

[0014] Figure 1 It is a structural schematic diagram of the detection tooling for battery side acupuncture provided by the present invention.

[0015] Figure 2 It is a structural schematic diagram of the acupuncture movement mechanism provided by the present invention.

[0016] Figure 3 It is a structural schematic diagram of the supporting motion mechanism provided by the present invention.

[0017] Figure 4 It is a schematic diagram of the split structure of the explosion-proof barrel and the placement bottom plate provided by the present invention.

[0018] 101-placing table, 102-placing base plate, 103-clamping plate, 104-detection opening, 105-first movement platform, 106-first telescopic push rod, 107-needle, 108-second movement platform, 109-second telescopic push rod, 110-temple plate, 111-horizontal electric sliding table, 112-vertical electric sliding table, 113-cylinder, 114-top cover, 115-first fixing hole, 116-second fixing hole, 117-rod body, 118-first connecting head, 119-second connecting head, 120-fixing bolt, 121-disassembly handle, 122-fixing plate, 123-mounting plate, 124-mounting boss, 125-stiffening rib. DETAILED DESCRIPTION

[0019] Embodiments of the present application are described in detail below with reference to examples illustrated in the accompanying drawings, in which the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0020] Referring to Figures 1 to 4 The present application provides a detection tool for battery side needle puncture, which comprises a placing table 101, a placing base plate 102, an explosion-proof bucket, a needle puncture mechanism and a temple movement mechanism. The placing base plate 102 is placed on the upper surface of the placing table 101, two clamping plates 103 are symmetrically arranged on the placing base plate 102, and a battery to be detected is placed between the two clamping plates 103. The explosion-proof bucket is installed on the placing base plate 102 and is arranged outside the battery to be detected. Detection openings 104 are arranged on both sides of the explosion-proof bucket. The placing table 101 is provided with the needle puncture mechanism and the temple movement mechanism on both sides respectively. The needle puncture mechanism comprises a first movement platform 105 with X-axis and Z-axis movement, a first telescopic push rod 106 obliquely installed at the output end of the first movement platform 105 at an angle of 45°, and a needle 107 installed at the output end of the first telescopic push rod 106. The temple movement mechanism comprises a second movement platform 108 with X-axis and Z-axis movement, a second telescopic push rod 109 obliquely installed at the output end of the second movement platform 108 at an angle of 45°, and a temple plate 110 installed at the output end of the second telescopic push rod 109.

[0021] In this embodiment, the square shell battery to be tested is placed on the placement base plate 102, and the initial positioning is achieved by the two symmetrically arranged clamping plates 103; the explosion-proof barrel cover is arranged on the outside of the square shell battery, and the detection openings 104 on both sides thereof provide channels for acupuncture and support respectively, and the acupuncture movement mechanism and the support movement mechanism respectively work together through the first motion platform 105, the first telescopic push rod 106, the second motion platform 108 and the second telescopic push rod 109. When the puncture needle 107 vertically punctures the side of the square shell battery, the support plate 110 on the opposite side synchronously presses against the battery to form a two-way mechanical balance, and the explosion-proof barrel can be removed from the placement base plate 102 and the explosion-proof barrel can be rotated. After adjusting the position of the detection opening 104, the puncture motion mechanism and the supporting motion mechanism cooperate to perform puncture detection on other positions on the side of the square shell battery. With the above structure, the battery is fixed by the splint 103, the reverse support of the supporting motion mechanism and the cooperation of the explosion-proof barrel limiter to ensure that the battery will not be displaced during the puncture process, and the puncture angle is always perpendicular to the battery surface, making the test data more accurate. In addition, since the first telescopic push rod 106 and the second telescopic push rod 109 are both installed at a 45° angle on the corresponding first motion platform 105 and the second motion platform 108, the X-ray imaging path is optimized, and the imaging blur problem caused by battery shaking in traditional tooling is solved.

[0022] Furthermore, the first motion platform 105 and the second motion platform 108 both include a horizontal electric slide 111, a vertical electric slide 112 and a mounting frame. The horizontal electric slide 111 is horizontally arranged on the side of the placement platform 101. The output end of the horizontal electric slide 111 is provided with the vertical electric slide 112. The vertical electric slide 112 moves horizontally along the X-axis direction. The output end of the vertical electric slide 112 is provided with the mounting frame. The mounting frame moves vertically along the Z-axis direction. The corresponding first telescopic push rod 106 and the second telescopic push rod 109 are installed on the mounting frame.

[0023] In this embodiment, the acupuncture motion mechanism and the supporting motion mechanism both adopt a modular motion platform design, and the horizontal electric slide 111 (X-axis) drives the vertical electric slide 112 to move horizontally. The vertical electric slide 112 drives the first telescopic push rod 106 or the second telescopic push rod 109 through the mounting frame to complete vertical (Z-axis) positioning, and combines the first telescopic push rod 106 and the second telescopic push rod 109 arranged at a 45° angle to form a three-dimensional motion system, which is convenient for acupuncture detection at different positions on the side of the square shell battery.

[0024] Furthermore, the explosion-proof barrel includes a cylinder 113 and a top cover 114, the top of the cylinder 113 is fixedly connected to the top cover 114, first fixing holes 115 are provided on both sides of the top cover 114, and a plurality of second fixing holes 116 are evenly provided on the periphery of the placement base plate 102, and connecting screws are installed between the first fixing holes 115 and the corresponding second fixing holes 116.

[0025] In this embodiment, the first fixing hole 115, the second fixing hole 116 and the connecting screw are provided to realize the rapid disassembly and assembly of the explosion-proof barrel and the placement base plate 102. The provision of multiple evenly distributed second fixing holes 116 facilitates the rotation of the explosion-proof barrel to adjust the position of the detection opening 104.

[0026] Furthermore, there are two first fixing holes 115 on both sides of the top cover 114 , and each of the first fixing holes 115 is provided with the connecting screw.

[0027] In this embodiment, since there are multiple connecting screws on both sides of the explosion-proof barrel, the connection structure between the explosion-proof barrel and the placement bottom plate 102 is more secure.

[0028] Furthermore, each of the connecting screws includes a rod body 117, a first connecting head 118, a second connecting head 119 and a fixing bolt 120. The first connecting head 118 and the second connecting head 119 are respectively provided at both ends of the rod body 117. The first connecting head 118 is inserted into the corresponding second fixing hole 116. The second connecting head 119 passes through the first fixing hole 115 and extends to the upper surface of the top cover 114. The fixing bolt 120 is connected to the second connecting head 119.

[0029] In this embodiment, after the first connecting head 118 is inserted into the second fixing hole 116, the explosion-proof barrel is placed above the placement base plate 102, so that the second connecting head 119 passes through the first fixing hole 115, and the fixing bolt 120 is installed at the top of the second connecting head 119, thereby completing the fixation of the explosion-proof barrel and the placement base plate 102 through the connecting bolt.

[0030] Furthermore, disassembly handles 121 are provided on both sides of the upper surface of the top cover 114 .

[0031] In this embodiment, the provision of the disassembly and assembly handle 121 makes it more convenient to disassemble and assemble the explosion-proof barrel.

[0032] Furthermore, each of the mounting frames includes a fixing plate 122 and a mounting plate 123, the fixing plate 122 being mounted at the output end of the corresponding vertical electric slide 112, the mounting plate 123 being fixedly connected to the top end of the fixing plate 122, and being located on a side of the fixing plate 122 away from the output end of the vertical electric slide 112, and being perpendicular to the fixing plate 122, a mounting boss 124 being provided at the center of the upper surface of the mounting plate 123, and the corresponding first telescopic push rod 106 and the second telescopic push rod 109 being mounted on the mounting boss 124.

[0033] In this embodiment, the mounting plate 123 and the fixing plate 122 are fixedly connected. When preparing the mounting frame, an integral molding technology is adopted, and the structure is more solid.

[0034] Furthermore, a reinforcing rib 125 is fixedly provided between the bottom of the mounting plate 123 and a surface of the fixing plate 122 away from the output end of the vertical electric slide 112 .

[0035] In this embodiment, the reinforcement ribs 125 are provided to make the overall structure of the mounting frame more stable.

[0036] Furthermore, each of the reinforcing ribs 125 is configured as a hollow structure.

[0037] In this embodiment, since the reinforcing ribs 125 are all provided in a hollow structure, the overall cost of the mounting frame is reduced.

[0038] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A detection tool for battery side acupuncture, characterized in that: The apparatus comprises a placement platform, a placement base, an explosion-proof barrel, a needle-puncture movement mechanism, and a supporting movement mechanism. The placement base is placed on the upper surface of the placement platform, two clamping plates are symmetrically arranged on the placement base, and the battery to be tested is placed between the two clamping plates. The explosion-proof barrel is installed on the placement base, and the explosion-proof barrel is arranged outside the battery to be tested. Both sides of the explosion-proof barrel are provided with detection openings. The acupuncture motion mechanism and the supporting motion mechanism are respectively provided on both sides of the placing table. The acupuncture motion mechanism consists of a first motion platform with X-axis and Z-axis motion, a first telescopic push rod installed at an angle of 45° at the output end of the first motion platform, and a needle installed at the output end of the first telescopic push rod. The supporting motion mechanism consists of a second motion platform with X-axis and Z-axis motion, a second telescopic push rod installed at an angle of 45° at the output end of the second motion platform, and a supporting plate installed at the output end of the second telescopic push rod.

2. The battery side puncture detection tool as claimed in claim 1, characterized in that: The first motion platform and the second motion platform both include a horizontal electric slide, a vertical electric slide and a mounting frame. The horizontal electric slide is horizontally arranged on the side of the placement platform. The output end of the horizontal electric slide is provided with the vertical electric slide. The vertical electric slide moves horizontally along the X-axis direction. The output end of the vertical electric slide is provided with the mounting frame. The mounting frame moves vertically along the Z-axis direction. The corresponding first telescopic push rod and second telescopic push rod are installed on the mounting frame.

3. The battery side puncture detection tool as claimed in claim 2, characterized in that: The explosion-proof barrel includes a cylinder and a top cover. The top of the cylinder is fixedly connected to the top cover. First fixing holes are provided on both sides of the top cover. A plurality of second fixing holes are evenly provided on the periphery of the base plate. Connecting screws are installed between the second fixing holes corresponding to the first fixing holes.

4. The battery side puncture detection tool as claimed in claim 3, characterized in that: There are two first fixing holes on both sides of the top cover, and each of the first fixing holes is provided with the connecting screw.

5. The battery side puncture detection tool as claimed in claim 4, characterized in that: Each of the connecting screws includes a rod body, a first connecting head, a second connecting head and a fixing bolt. The first connecting head and the second connecting head are respectively provided at both ends of the rod body. The first connecting head is inserted into the corresponding second fixing hole. The second connecting head passes through the first fixing hole and extends to the upper surface of the top cover. The fixing bolt is connected to the second connecting head.

6. The battery side puncture detection tool as claimed in claim 5, characterized in that: Both sides of the upper surface of the top cover are provided with disassembly and assembly handles.

7. The battery side puncture detection tool as claimed in claim 2, characterized in that: Each of the mounting frames includes a fixing plate and a mounting plate, the fixing plate being mounted at the output end of the corresponding vertical electric slide, the mounting plate being fixedly connected to the top end of the fixing plate, and being located on a side of the fixing plate away from the output end of the vertical electric slide, and being perpendicular to the fixing plate, a mounting boss being provided at the center of the upper surface of the mounting plate, and the corresponding first telescopic push rod and second telescopic push rod being mounted on the mounting boss.

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