New energy automobile battery pack deformation detection device

Abstract

The invention discloses a new energy automobile battery pack deformation detection device, and relates to the field of new energy automobile battery maintenance equipment.The new energy automobile battery pack deformation detection device comprises a root support, a sizing block is arranged on the root support, sliding rails which are symmetrically arranged are fixed to the upper portion of the sizing block, a pushing support is arranged on the sliding rails, and a lifting hook structure is arranged on the inner side of the pushing support; a pushing assembly is arranged on the outer side of the pushing support, and a push rod structure is arranged on the inner side of the top of the frame. A detection device is arranged on the upper surface of the front end of the sizing block and comprises a spray head set, a cleaning set and a coloring roller, and the spray head set, the cleaning set and the coloring roller are sequentially arranged from inside to outside. The position and the boundary of the deformation position of the bottom surface of the battery pack can be identified.

Description

Technical Field

[0001] The present invention relates to the field of maintenance equipment for new energy vehicle batteries, and specifically to a deformation detection device for new energy vehicle battery packs. Background Technique

[0002] With the rapid development of the global new energy vehicle industry, as the carrier of the battery system, the power battery pack must possess characteristics such as high strength, impact resistance, and fatigue resistance to cope with external loads such as complex road conditions, mechanical collisions, and foreign object scratches. However, in actual use, the bottom of the battery pack often undergoes local deformation due to reasons such as road surface bumps, accidental bottoming, foreign object impacts, or long-term vibrations. Moreover, the deformation characteristics show unevenness, irregular boundaries, and non-uniform deformation gradients. Such deformation may damage the internal structure of the battery pack (such as battery cells, modules, cooling pipelines, etc.), leading to insulation failure, electrolyte leakage, and even the risk of thermal runaway, seriously threatening vehicle safety. The current challenges in the industry are as follows:

[0003] 1. Difficulty in deformation detection: Bottom deformation is often difficult to be accurately identified by visual inspection or conventional detection means (such as two-dimensional image analysis) due to its hidden location and blurred boundaries, especially when the deformation is slight, it is easily overlooked.

[0004] 2. Imperfect evaluation criteria: Existing battery pack structural strength standards are mostly designed based on ideal working conditions, lacking a quantitative evaluation basis for the dynamic evolution law of non-uniform deformation and its impact on the battery system.

[0005] 3. Difficulty in maintenance decision-making: The irregularity of the deformed area makes it difficult to determine the degree of damage. Some deformations may only affect the appearance but not damage the internal structure, while others may cause hidden safety hazards, resulting in over-maintenance or under-maintenance.

[0006] Therefore, how to efficiently diagnose the irregular deformation at the bottom of the battery pack, establish a scientific damage assessment system, and formulate a reasonable maintenance strategy has become the key technical bottleneck for ensuring the safety and economy of new energy vehicles. Summary of the Invention

[0007] The purpose of the present invention is to provide a deformation detection device for new energy vehicle battery packs to solve the problems raised in the above background technique.

[0008] To achieve the above purpose, the present invention provides the following technical solution: A deformation detection device for new energy vehicle battery packs, including a root bracket, a backing plate is provided on the root bracket, symmetrically arranged slide rails are fixed above the backing plate, a pushing bracket is provided on the slide rails, a hook structure is arranged inside the pushing bracket, and a pushing component is arranged outside the pushing bracket;

[0009] The sliding rail includes a translation sliding rail, which is fixedly installed on a fixing frame, and the fixing frame is installed on a foundation pad;

[0010] The pushing bracket includes a frame, a detection outlet is provided at the front end of the frame, the frame is fixedly installed on four-corner cushion blocks, and a push rod structure is provided inside the top of the frame;

[0011] The pushing assembly includes a hydraulic cylinder, and the output shaft of the hydraulic cylinder is connected to the pushing bracket and can drive the pushing bracket to move back and forth;

[0012] The hook structure includes a hook and a spring. The tail of the hook is slidably installed in a connecting plate through a guide post, and the spring is arranged inside the hook;

[0013] A detection device is provided on the upper surface of the front end of the foundation pad. The detection device includes a spray head group, a cleaning group and a coloring roller, and the three are arranged in sequence from the inside to the outside.

[0014] Preferably, an upper limit plate is provided at the upper end of the inner side surface of the fixing frame.

[0015] Preferably, a shock absorber seat is provided below the four-corner cushion block. The shock absorber seat is slidably installed inside the translation sliding rail. An upper top plate is provided on the side surface of the shock absorber seat, and the upper end surface of the upper top plate is in sliding contact with the lower surface of the upper limit plate.

[0016] Preferably, a support bracket is provided at the bottom of the hydraulic cylinder, and the support bracket is fixedly installed on the fixing frame.

[0017] Preferably, the hanging guide posts are arranged at equal intervals on the back of the hook. A limit ring is provided at the root of the guide post. A receiving groove is provided on the connecting plate. The spring is located in the receiving groove, and the top of the connecting plate is fixedly connected to the output shaft of a hydraulic cylinder one.

[0018] Preferably, the push rod structure includes a translation track, a fixed top plate and a suction cup. The translation track is fixedly installed on the lower surface of the fixed top plate. The fixed top plate is fixedly installed inside the frame. The suction cup is fixedly installed on a suction cup seat plate, and the top of the suction cup seat plate is connected to a translation block on the translation track through a connecting piece.

[0019] Preferably, guide blocks are symmetrically arranged on the foundation pad at the detection outlet.

[0020] Preferably, the spray head group includes a spray head and a mounting pipe. The spray head is fixedly installed on the mounting pipe, and the mounting pipe is fixedly installed on a root bracket.

[0021] Preferably, the cleaning group includes a cleaning roller, a power roller and a cleaning box. The top of the cleaning roller is higher than the upper surface of the padding iron. The power roller is installed in the cleaning box, and the cleaning box is fixedly installed in the root bracket.

[0022] Preferably, the coloring roller includes a roller, a pigment spray head and a spray head seat. The roller is installed at the mouth of the pigment spray head and bristles are provided on the roller. The pigment spray head is fixedly installed on the spray head seat, and the spray head seat is fixedly installed in the padding iron.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. Through the arranged spray head group, the present invention can form a uniform color layer on the bottom surface of the battery pack. Cooperating with the cleaning group arranged at the rear end, it can erase the color at the positions where the bottom surface of the battery pack bulges and deforms, leaving only the color at the positions where it is recessed and deformed, and can prominently mark the positions and boundaries of the concave deformations;

[0025] 2. Due to the coloring roller arranged in the present invention being lower than the cleaning group, after the cleaning group cleans the color of the protruding part, it can re - brush a layer of color on the battery pack, so as to mark the deformation positions and boundaries of the protruding parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the present invention;

[0027] Figure 2 is a front view of the present invention;

[0028] Figure 3 is Figure 2 a side view of

[0029] Figure 4 is Figure 2 a top view of

[0030] Figure 5 is an enlarged view of the hook structure;

[0031] Figure 6 is Figure 5 an enlarged view of the structure at position A inside;

[0032] Figure 7 is a lower - side view of the push - rod structure;

[0033] Figure 8 is a structural diagram of the detection device;

[0034] Figure 9 is an exploded structural diagram of the detection device;

[0035] Figure 10 is Figure 9 an enlarged view of the structure at position B inside.

[0036] In the figure: 1 - Root bracket;

[0037] 2 - Shims; 21 - Guide block;

[0038] 3 - Slide rail; 31 - Translation slide rail; 32 - Fixed frame; 33 - Upper limit plate;

[0039] 4 - Pushing bracket; 41 - Frame; 42 - Corner pads; 43 - Shock absorber seat; 44 - Upper top plate; 45 - Detection outlet;

[0040] 5 - Pushing component; 51 - Hydraulic cylinder; 52 - Support bracket;

[0041] 6 - Hook structure; 61 - Limit ring; 62 - Connecting plate; 63 - Hook; 64 - Guide post; 65 - Hydraulic cylinder 1;

[0042] 66 - Spring;

[0043] 7 - Push rod structure; 71 - Translation track; 72 - Fixed top plate; 73 - Suction cup; 74 - Suction cup seat plate;

[0044] 8 - Detection device; 81 - Sprinkler group; 811 - Sprinkler; 812 - Installation pipe; 82 - Cleaning group; 821 - Cleaning roller;

[0045] 822 - Driving roller; 823 - Cleaning box; 83 - Coloring roller; 831 - Roller; 832 - Pigment sprinkler; 833 - Sprinkler seat. Detailed implementation mode

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] Please refer to Figures 1 to 10 , the present invention provides a technical solution: a deformation detection device for a new energy vehicle battery pack, including a root bracket 1, a shim 2 is provided on the root bracket 1, symmetrically arranged slide rails 3 are fixed above the shim 2, a pushing bracket 4 is arranged on the slide rails 3, a hook structure 6 is arranged inside the pushing bracket 4, and a pushing component 5 is arranged outside the pushing bracket 4;

[0048] The slide rail 3 includes a translation slide rail 31, the translation slide rail 31 is fixedly installed on a fixed frame 32, and the fixed frame 32 is installed on the shim 2;

[0049] The pushing support 4 includes a frame 41. A detection outlet 45 is provided at the front end of the frame 41. The frame 41 is fixedly installed on four-corner pads 42. A push rod structure 7 is provided inside the top of the frame 41;

[0050] The pushing assembly 5 includes a hydraulic cylinder 51. The output shaft of the hydraulic cylinder 51 is connected to the pushing support 4 and can drive the pushing support 4 to move back and forth;

[0051] The hook structure 6 includes a hook 63 and a spring 66. The tail of the hook 63 is slidably installed in a connecting plate 62 through a guide post 64. The spring 66 is arranged inside the hook 63;

[0052] A detection device 8 is provided on the upper surface of the front end of the cushion iron 2. The detection device 8 includes a spray head group 81, a cleaning group 82, and a coloring roller 83, and the three are arranged in sequence from the inside to the outside.

[0053] In this embodiment, an upper limit plate 33 is provided at the upper end of the inner side surface of the fixed frame 32. A shock absorber seat 43 is provided below the four-corner pads 42. The shock absorber seat 43 is slidably installed in a translation slide rail 31. An upper top plate 44 is provided on the side surface of the shock absorber seat 43. The upper end surface of the upper top plate 44 is in sliding contact with the lower surface of the upper limit plate 33. Through the cooperation of the upper limit plate 33 and the upper top plate 44, limit can be formed from above to prevent the frame 41 from shifting.

[0054] In this embodiment, a support bracket 52 is provided at the bottom of the hydraulic cylinder 51. The support bracket 52 is fixedly installed on the fixed frame 32, and the hydraulic cylinder 51 is fixed on the fixed frame 32 through the support bracket 52.

[0055] In this embodiment, the hanging guide posts 64 are arranged at equal intervals on the back of the hook 63. A limit ring 61 is provided at the root of the guide post 64. A receiving groove is provided on the connecting plate 62. The spring 66 is located in the receiving groove. The top of the connecting plate 62 is fixedly connected to the output shaft of a hydraulic cylinder 65. An inclined surface is provided on the bottom surface of the hook 63. When the battery pack is lifted by the lifting frame below, the hook 63 will be forced to compress the spring 66 by squeezing the inclined surface until the hook 63 can engage with the side step position of the battery pack, and the hook 63 can lift the battery pack.

[0056] In this embodiment, the push rod structure 7 includes a translation track 71, a fixed top plate 72, and a suction cup 73. The translation track 71 is fixedly installed on the lower surface of the fixed top plate 72. The fixed top plate 72 is fixedly installed inside the frame 41. The suction cup 73 is fixedly installed on the suction cup seat plate 74. The top of the suction cup seat plate 74 is connected to the translation block on the translation track 71 through a connecting member. After the hook 63 lifts the battery pack, the back of the battery pack is adsorbed by the suction cup 73, so that the translation track 71 is connected to the battery pack.

[0057] In this embodiment, guide blocks 21 are symmetrically arranged on the cushion block 2 at the detection outlet 45. The guide blocks 21 provide guidance for the movement of the battery pack.

[0058] In this embodiment, the nozzle group 81 includes nozzles 811 and mounting pipes 812. The nozzles 811 are fixedly installed on the mounting pipes 812. The mounting pipes 812 are fixedly installed on the root bracket 1. When the battery pack moves toward the detection outlet 45, the nozzles 811 will leave a layer of color on the lower surface of the battery pack, denoted as Color One.

[0059] In this embodiment, the cleaning group 82 includes a cleaning roller 821, a power roller 822, and a cleaning box 823. The top of the cleaning roller 821 is higher than the upper surface of the cushion block 2. The power roller 822 is installed inside the cleaning box 823. The cleaning box 823 is fixedly installed inside the root bracket 1. When the battery pack coated with Color One passes through the cleaning roller 821, the Color One sprayed by the nozzles 811 will be wiped and cleaned off, leaving only the Color One at the position of the concave deformation. In this way, the position and boundary of the concave deformation can be marked. A cleaning liquid is injected into the cleaning box 823 arranged below, which can clean the cleaning cloth wound on the cleaning roller 821 and the power roller 822 to prevent the residue of Color One. It should be noted here that the distance between the top position of the cleaning roller 821 and the cushion block 2 needs to be set to be the same as the distance between the standard bottom surface of the battery pack bottom and the cushion block 2. That is, if the distance between the standard bottom surface of the battery pack bottom in the undeformed state and the cushion block 2 is set as a, then the distance between the top of the cleaning roller 821 and the cushion block 2 is also set as a.

[0060] In this embodiment, the coloring roller 83 includes a roller 831, a pigment spray head 832, and a spray head seat 833. The roller 831 is installed at the mouth of the pigment spray head 832 and bristles are provided on the roller 831. The pigment spray head 832 is fixedly installed on the spray head seat 833, and the spray head seat 833 is fixedly installed in the backing plate 2. The bristles of the roller 831 can adsorb the color two in the pigment spray head 832. After the cleaning roller 821 cleans off the color one on the protruding and deformed bottom surface, due to the setting of the roller 831, when the battery pack passes by, the color two will be applied to the bottom surface of the battery pack, so that the position and boundary of the outward convex deformation can be marked. At this time, it should be noted that the height of the roller 831 is lower than that of the cleaning roller 821, and the difference in height is the maximum value of the deformation allowed on the bottom surface of the battery pack. Generally, the requirement of general enterprises for the maximum outward convex value is 2 mm.

[0061] Working principle: When in use, first the battery pack is lifted from below the root bracket 1 through the lifting structure and hooked by the hook 63, and then lifted to the specified height by the first hydraulic cylinder 65. At this time, the pushing bracket 4 and the battery pack are driven by the hydraulic cylinder 51 to move forward together, so that the front end of the battery pack enters the inside of the guide block 21 and is restricted and guided by the guide block 21. At this time, the hydraulic cylinder 51 stops working, and the translation track 71 drives the suction cup 73 to move forward until the suction cup adsorbs the end face of the battery pack. Then the battery pack is driven to move forward by the suction cup seat plate 74. At this time, the bottom surface of the battery pack starts to contact the nozzle group 81. When the battery pack moves toward the detection outlet 45 side, the nozzle 811 will leave a layer of color on the lower surface of the battery pack, denoted as color one. When the battery pack coated with color one passes through the cleaning roller 821, the color one sprayed by the nozzle 811 will be wiped and cleaned off. Due to the setting of the roller 831, when the battery pack passes by, the color two will be applied to the bottom surface of the battery pack, so that the position and range of the deformation of the battery pack can be completed.

[0062] As is known by common technical knowledge, the present invention can be implemented by other embodiments that do not depart from its spiritual essence or essential features. Therefore, the above-disclosed embodiments are illustrative in all aspects and are not the only ones. All changes within the scope of the present invention or within the scope equivalent to the present invention are encompassed by the present invention.

Claims

1. A deformation detection device for a new energy vehicle battery pack, characterized in that: It includes a root bracket (1), on which a shim (2) is provided. Above the shim (2), symmetrically arranged slide rails (3) are fixed. A push bracket (4) is arranged on the slide rails (3). Inside the push bracket (4), a hook structure (6) is provided. Outside the push bracket (4), a push component (5) is provided; The slide rail (3) includes a translation slide rail (31), and the translation slide rail (31) is fixedly installed on a fixed frame (32), and the fixed frame (32) is installed on the shim (2); The push bracket (4) includes a frame (41). At the front end of the frame (41), a detection outlet (45) is provided. The frame (41) is fixedly installed on four-corner pads (42). Inside the top of the frame (41), a push rod structure (7) is provided; The push component (5) includes a hydraulic cylinder (51). The output shaft of the hydraulic cylinder (51) is connected to the push bracket (4) and can drive the push bracket (4) to move back and forth; The hook structure (6) includes a hook (63) and a spring (66). The tail of the hook (63) is slidably installed in a connecting plate (62) through a guide post (64), and the spring (66) is arranged inside the hook (63); On the upper surface of the front end of the shim (2), a detection device (8) is provided. The detection device (8) includes a spray head group (81), a cleaning group (82), and a coloring roller (83), and the three are arranged in sequence from the inside to the outside.

2. The deformation detection device for a new energy vehicle battery pack according to claim 1, wherein: At the upper end of the inner side surface of the fixed frame (32), an upper limit plate (33) is provided.

3. The deformation detection device for a new energy vehicle battery pack according to claim 2, wherein: Below the four-corner pads (42), a shock absorber seat (43) is provided. The shock absorber seat (43) is slidably installed inside the translation slide rail (31). On the side surface of the shock absorber seat (43), an upper top plate (44) is provided. The upper end surface of the upper top plate (44) is in sliding contact with the lower surface of the upper limit plate (33).

4. A deformation detection device for a new energy vehicle battery pack according to claim 1, characterized in that: At the bottom of the hydraulic cylinder (51), a support bracket (52) is provided, and the support bracket (52) is fixedly installed on the fixed frame (32).

5. The deformation detection device for a new energy vehicle battery pack according to claim 1, wherein: The hanging guide posts (64) are arranged at equal intervals on the back of the hook (63). At the root of the guide post (64), a limit ring (61) is provided. On the connecting plate (62), a receiving groove is provided. The spring (66) is located in the receiving groove. The top of the connecting plate (62) is fixedly connected to the output shaft of a hydraulic cylinder one (65).

6. The deformation detection device for a new energy vehicle battery pack according to claim 1, characterized in that: The push rod structure (7) includes a translation track (71), a fixed top plate (72), and a suction cup (73). The translation track (71) is fixedly installed on the lower surface of the fixed top plate (72). The fixed top plate (72) is fixedly installed inside the frame (41). The suction cup (73) is fixedly installed on a suction cup seat plate (74). The top of the suction cup seat plate (74) is connected to a translation block on the translation track (71) through a connecting member.

7. A deformation detection device for a new energy vehicle battery pack according to claim 1, characterized in that: On the shim (2) at the detection outlet (45), symmetrically arranged guide blocks (21) are provided.

8. The deformation detection device for a new energy vehicle battery pack according to claim 1, characterized in that: The nozzle group (81) includes nozzles (811) and mounting pipes (812). The nozzles (811) are fixedly mounted on the mounting pipes (812), and the mounting pipes (812) are fixedly mounted on the root bracket (1).

9. The deformation detection device for a new energy vehicle battery pack according to claim 1, characterized in that: The cleaning group (82) includes a cleaning roller (821), a power roller (822), and a cleaning box (823). The top of the cleaning roller (821) is higher than the upper surface of the padding iron (2). The power roller (822) is installed in the cleaning box (823), and the cleaning box (823) is fixedly mounted inside the root bracket (1).

10. The deformation detection device for a new energy vehicle battery pack according to claim 1, wherein: The coloring roller (83) includes a roller (831), a pigment nozzle (832), and a nozzle seat (833). The roller (831) is installed at the mouth of the pigment nozzle (832), and bristles are provided on the roller (831). The pigment nozzle (832) is fixedly mounted on the nozzle seat (833), and the nozzle seat (833) is fixedly mounted inside the padding iron (2).

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