A detection device for battery production

Abstract

The utility model relates to battery pack production technical field, and disclose a kind of detection device for battery production, including rack, the top of the inboard of rack is fixedly connected with the detection component for detecting battery pack, the inboard of rack is provided with the placement platform for placing battery pack, the both sides of placement platform are provided with the positioning piece for positioning and fixing battery pack, the bottom of placement platform is provided with the translation mechanism for driving placement platform horizontal movement, the both ends of placement platform bottom are provided with the top pressure mechanism by the cooperation translation of placement platform to drive placement platform to swing up and down.The utility model realizes the detection to the top and both sides of battery pack, so it can realize the detection to different positions of battery pack, greatly improve the detection accuracy of battery pack.

Description

Technical Field

[0001] This utility model relates to the field of battery pack production technology, and more specifically, to a testing device for battery production. Background Technology

[0002] Battery packs are divided into series and parallel connections. Parallel battery packs require each cell to have the same voltage, and the output voltage is equal to the voltage of one cell. Parallel battery packs can provide a stronger current. Series battery packs have fewer requirements. Currently, commonly used battery packs, especially the power battery packs used in electric vehicles, boats, and other transportation vehicles, are mostly composed of two or more individual cells connected in series and parallel. During the battery pack manufacturing process, after the battery pack is assembled into the battery box, the battery box is closed with a cover. At this point, the battery pack assembly is complete. However, during the assembly process, due to the material itself and human or machine operation errors, it is easy to cause cracks on the product surface, leakage, and liquid leakage. Therefore, it is necessary to use appropriate testing devices to test the assembled battery packs.

[0003] A search revealed that Chinese Patent Publication No. CN210487817U discloses "a testing device for battery pack production, including a base, a sliding device provided at the bottom of the inner cavity of the base, a moving plate vertically provided in the inner cavity of the base, a driving device provided on the back of the moving plate, support columns fixedly connected to both sides of the top of the base, a support plate fixedly connected to the top of the support columns, a connecting plate fixedly connected to the bottom of the support plate, and a battery pack testing device body fixedly connected to the bottom of the connecting plate".

[0004] The aforementioned patent uses a motor to drive a gear to rotate on a rack plate. As the gear rotates on the rack plate, it drives a moving plate to move, which in turn drives a moving column. This causes the placement plate to move the battery pack body to the bottom of the battery pack detection device for detection. However, the battery pack detection device can only detect the top surface of the battery pack, while the two sides of the battery pack are detected repeatedly, resulting in inaccurate final detection results. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides a testing device for battery production, which has the advantage of being able to test the top and sides of the battery pack to improve testing accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a testing device for battery production, comprising a frame, a testing component for testing battery packs fixedly connected to the top of the inner side of the frame, a placement platform for placing battery packs provided on the inner side of the frame, positioning components for positioning and fixing battery packs provided on both sides of the placement platform, a translation mechanism for driving the placement platform to move horizontally provided at the bottom of the placement platform, and a pressing mechanism for driving the placement platform to swing up and down by cooperating with the translation of the placement platform at both ends of the bottom of the placement platform.

[0007] As a preferred embodiment of this utility model, the translation mechanism includes a lead screw, which is rotatably connected to the inner side of the frame. A motor is fixedly installed at one end of the frame, and the output shaft of the motor is fixedly connected to the lead screw. A movable seat is threaded onto the lead screw, and a connecting plate is hinged to the middle of the top surface of the movable seat. The top of the connecting plate is hinged to the bottom wall of the placement platform.

[0008] As a preferred embodiment of this utility model, the top pressing mechanism includes two parallel top rods, which are slidably connected to both ends of the movable seat. Both ends of the bottom of the placement platform are fixedly connected to connecting seats. The top ends of the two top rods are hinged to the two connecting seats, and the bottom ends of the two top rods are fixedly connected to mounting seats. Rollers are rotatably connected to the inner sides of the two mounting seats. A guide member for guiding the two rollers is provided at the bottom of the inner side of the frame.

[0009] As a preferred technical solution of this utility model, the guide includes two parallel guide rails, which are respectively fixedly connected to the two ends of the inner side of the frame. Each of the two guide rails has a plurality of arc-shaped protrusions fixedly connected to its top end. The plurality of arc-shaped protrusions are distributed at equal angles along the corresponding guide rails. Each of the two guide rails has a plurality of arc-shaped grooves at its top end, which are distributed between two adjacent arc-shaped protrusions.

[0010] As a preferred embodiment of this utility model, the arc-shaped protrusion on one of the guide rails corresponds horizontally to the arc-shaped groove on the other guide rail.

[0011] As a preferred embodiment of the present invention, the positioning component includes a fixing plate, which is fixedly connected to the top of the placement platform. A sleeve is fixedly connected to one side of the fixing plate, and a sleeve rod is slidably connected to one end of the sleeve. A clamping plate that abuts against the battery pack is fixedly connected to the end of the sleeve rod away from the sleeve.

[0012] As a preferred embodiment of this utility model, a slider is slidably connected to the inner side of the sleeve, one side of the slider is fixedly connected to the sleeve rod, and a spring is sleeved on the inner side of the sleeve, one end of the spring abuts against the slider, and the other end of the spring abuts against the inner wall of the sleeve.

[0013] As a preferred technical solution of this utility model, the detection component includes multiple optical sensors with adjustable viewing angles. The sensor array is fixed on the frame by a bracket and can cover the direct downward and oblique viewing angles. The sensor circuit includes an image acquisition module and a central processing unit for real-time analysis of defects such as cracks and leakage on the surface of the battery pack.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. Through a unique mechanical design, simultaneous detection of the top and sides of the battery pack is achieved, overcoming the limitation of traditional devices that can only detect the top surface. The detection component includes an array of multiple adjustable-angle optical sensors, covering the direct downward angle and ±30° oblique viewing angles. Combined with an image acquisition module and a central processing unit, it analyzes defects such as cracks and leaks on the battery pack surface in real time. During the detection process, the top of the battery pack is scanned by horizontal movement, while the sides are exposed by swinging, ensuring that all surface areas are covered.

[0016] 2. The translation mechanism and the pressing mechanism work closely together to drive the placement platform to move horizontally and swing up and down, without the need for an additional power source, which significantly improves the testing efficiency.

[0017] 3. The guide component consists of parallel guide rails. The top of the guide rails is provided with arc-shaped protrusions and adjacent arc-shaped grooves distributed at equal angles. The key innovation is that the arc-shaped protrusions of one guide rail correspond horizontally to the arc-shaped grooves of another guide rail, ensuring that the two ends of the placement platform alternately rise and fall. The rollers roll smoothly on the arc-shaped structure, reducing vibration and wear and improving swing stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a testing device for battery production according to the present invention;

[0019] Figure 2 This is a schematic diagram of the translation mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the top-pressing mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the guide component of this utility model;

[0022] Figure 5 This is a schematic diagram of the positioning component of this utility model.

[0023] In the diagram: 1. Frame; 2. Detection assembly; 3. Placement platform; 4. Positioning component; 41. Fixing plate; 42. Sleeve; 43. Sleeve rod; 44. Clamping plate; 45. Slider; 46. Spring; 5. Battery pack; 6. Translation mechanism; 61. Lead screw; 62. Movable seat; 63. Motor; 64. Connecting plate; 7. Pressing mechanism; 71. Push rod; 72. Connecting seat; 73. Mounting seat; 74. Roller; 8. Guide component; 81. Guide rail; 83. Arc-shaped protrusion; 84. Arc-shaped groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 5 As shown, this utility model provides a testing device for battery production, including a frame 1. A testing component 2 for testing a battery pack 5 is fixedly connected to the top of the inner side of the frame 1. The testing component 2 includes multiple adjustable-view optical sensors (CCD cameras). The sensor array is fixed to the frame via a bracket and can cover both directly below and oblique viewing angles. The sensor circuit includes an image acquisition module and a central processing unit (model: ARM Cortex-A9) for real-time analysis of defects such as cracks and leakage on the surface of the battery pack 5. During testing, when the placement stage 3 moves horizontally, the sensors vertically downwards to acquire images of the top surface; when the placement stage 3 swings, the sensors automatically fine-tune the angle to ±30° obliquely, capturing images of both sides of the battery pack 5.

[0026] The inner side of the frame 1 is provided with a placement platform 3 for placing the battery pack 5. Both sides of the placement platform 3 are provided with positioning parts 4 for positioning and fixing the battery pack 5. The bottom of the placement platform 3 is provided with a translation mechanism 6 for driving the placement platform 3 to move horizontally. Both ends of the bottom of the placement platform 3 are provided with a pressing mechanism 7 that drives the placement platform 3 to swing up and down by cooperating with the translation of the placement platform 3.

[0027] By placing the battery pack 5 on the placement platform 3 and fixing it with the positioning component 4, and then driving the placement platform 3 to move horizontally through the translation mechanism 6, the battery pack 5 moves horizontally below the detection component 2, thereby realizing the movement detection of the top of the battery pack 5. At the same time, the pressing mechanism 7 drives the placement platform 3 to swing up and down, which makes the battery pack 5 swing with the placement platform 3, so that both sides of the battery pack 5 can be detected by the detection component 2, thereby realizing the detection of both sides of the battery pack 5. This allows for the detection of different positions of the battery pack 5, greatly improving the detection accuracy of the battery pack 5.

[0028] The translation mechanism 6 includes a lead screw 61, which is rotatably connected to the inner side of the frame 1. A motor 63 is fixedly mounted at one end of the frame 1, and the output shaft of the motor 63 is fixedly connected to the lead screw 61. A movable seat 62 is threaded onto the lead screw 61, and a connecting plate 64 is hinged to the middle of the top surface of the movable seat 62. The top of the connecting plate 64 is hinged to the bottom wall of the placement platform 3. By starting the motor 63, the lead screw 61 is driven to rotate, which causes the movable seat 62 to move along the axis of the lead screw 61, thereby causing the placement platform 3 to translate horizontally. This allows the battery pack 5 to move horizontally below the detection component 2, thus achieving the movement detection of the top of the battery pack 5.

[0029] The pressing mechanism 7 includes two parallel push rods 71, which are slidably connected to both ends of the movable seat 62. Connecting seats 72 are fixedly connected to both ends of the bottom of the placement platform 3. The top ends of the two push rods 71 ​​are hinged to the two connecting seats 72, and mounting seats 73 are fixedly connected to the bottom ends of the two push rods 71. Rollers 74 are rotatably connected to the inner sides of the two mounting seats 73. A guide member 8 is provided at the bottom inner side of the frame 1 to guide the two rollers 74. The guide member 8 includes... The device includes two parallel guide rails 81, which are fixedly connected to the two ends of the inner side of the frame 1. Each guide rail 81 has a number of arc-shaped protrusions 83 fixedly connected to its top end. The arc-shaped protrusions 83 are distributed at equal angles along the corresponding guide rails 81. Each guide rail 81 has a number of arc-shaped grooves 84 at its top end. The arc-shaped grooves 84 are distributed between two adjacent arc-shaped protrusions 83. The arc-shaped protrusions 83 on one guide rail 81 are horizontally aligned with the arc-shaped grooves 84 on the other guide rail 81.

[0030] When the placement stage 3 moves horizontally, the pressing mechanism 7, through the interaction of rollers 74 and the arc-shaped protrusions 83 and grooves 84 on the guide rail 81, drives the placement stage 3 to swing up and down at an angle of ±15°, with an oscillation cycle of 0.5 seconds per cycle (corresponding to a motor speed of 30 rpm). When the rollers 74 contact the arc-shaped protrusions 83, one end of the placement stage 3 rises; when it rolls into the arc-shaped grooves 84, the other end sinks, alternately exposing both sides of the battery pack 5. The detection component 2 captures a side image at the highest point of the swing, completing one lateral scan with each swing, ensuring full surface coverage and greatly improving the detection accuracy of the battery pack 5.

[0031] The positioning component 4 includes a fixing plate 41, which is fixedly connected to the top of the placement platform 3. A sleeve 42 is fixedly connected to one side of the fixing plate 41. A sleeve rod 43 is slidably connected to one end of the sleeve 42. A clamping plate 44 that abuts against the battery pack 5 is fixedly connected to the end of the sleeve rod 43 away from the sleeve 42. A slider 45 is slidably connected to the inner side of the sleeve 42. One side of the slider 45 is fixedly connected to the sleeve rod 43. A spring 46 is sleeved on the inner side of the sleeve 42. One end of the spring 46 abuts against the slider 45, and the other end of the spring 46 abuts against the inner wall of the sleeve 42. When the placement platform 3 swings, the spring 46 is compressed, causing the clamping plate 44 to retract slightly (maximum displacement 5mm), exposing the upper areas on both sides of the battery pack 5. At the same time, the oblique sensor of the detection component 2 avoids the obstruction of the clamping plate 44 and focuses directly on the exposed surface. The buffering force of the spring 46 (set value 5N) ensures that the battery pack 5 is fixed, but does not affect the swing detection.

[0032] The inspection process includes: First, the battery pack 5 is placed on the placement platform 3 and fixed by the positioning component 4; then the motor 63 is started, so that the placement platform 3 moves horizontally and the inspection component 2 acquires the top surface image; during the translation, the top pressing mechanism 7 drives the swing, exposing the two sides of the battery pack 5, and the inspection component 2 adjusts the angle to acquire the side image; the processor integrates the multi-angle data and outputs a defect report, with a total inspection cycle of ≤10 seconds and a swing angle of ±15° to ensure no blind spots.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing device for battery production, comprising a frame (1), wherein a testing component (2) for testing a battery pack (5) is fixedly connected to the top of the inner side of the frame (1), characterized in that: The inner side of the frame (1) is provided with a placement platform (3) for placing the battery pack (5). Both sides of the placement platform (3) are provided with positioning components (4) for positioning and fixing the battery pack (5). The bottom of the placement platform (3) is provided with a translation mechanism (6) for driving the placement platform (3) to move horizontally. Both ends of the bottom of the placement platform (3) are provided with a pressing mechanism (7) for driving the placement platform (3) to swing up and down by cooperating with the translation of the placement platform (3).

2. The testing device for battery production according to claim 1, characterized in that: The translation mechanism (6) includes a lead screw (61), which is rotatably connected to the inner side of the frame (1). A motor (63) is fixedly installed at one end of the frame (1). The output shaft of the motor (63) is fixedly connected to the lead screw (61). A movable seat (62) is threaded onto the lead screw (61). A connecting plate (64) is hinged to the middle of the top surface of the movable seat (62). The top of the connecting plate (64) is hinged to the bottom wall of the placement platform (3).

3. The testing device for battery production according to claim 2, characterized in that: The pressing mechanism (7) includes two parallel push rods (71), which are slidably connected to both ends of the movable seat (62). Both ends of the bottom of the placement platform (3) are fixedly connected to the connecting seats (72). The top ends of the two push rods (71) are hinged to the two connecting seats (72). The bottom ends of the two push rods (71) are fixedly connected to the mounting seats (73). The inner sides of the two mounting seats (73) are rotatably connected to the rollers (74). The bottom end of the inner side of the frame (1) is provided with a guide (8) for guiding the two rollers (74).

4. The testing device for battery production according to claim 3, characterized in that: The guide member (8) includes two parallel guide rails (81), which are fixedly connected to the two ends of the inner side of the frame (1). The top ends of the two guide rails (81) are fixedly connected with a number of arc-shaped protrusions (83). The number of arc-shaped protrusions (83) are distributed at equal angles along the corresponding guide rails (81). The top ends of the two guide rails (81) are provided with a number of arc-shaped grooves (84). The number of arc-shaped grooves (84) are distributed between two adjacent arc-shaped protrusions (83).

5. A testing device for battery production according to claim 4, characterized in that: The arc-shaped protrusion (83) on one of the guide rails (81) corresponds horizontally to the arc-shaped groove (84) on the other guide rail (81).

6. The testing device for battery production according to claim 1, characterized in that: The positioning component (4) includes a fixing plate (41), which is fixedly connected to the top of the placement platform (3). A sleeve (42) is fixedly connected to one side of the fixing plate (41), and a sleeve rod (43) is slidably connected to one end of the sleeve (42). A clamping plate (44) that abuts against the battery pack (5) is fixedly connected to the end of the sleeve rod (43) away from the sleeve (42).

7. A testing device for battery production according to claim 6, characterized in that: The inner side of the sleeve (42) is slidably connected to a slider (45), one side of the slider (45) is fixedly connected to the sleeve rod (43), and a spring (46) is sleeved on the inner side of the sleeve (42). One end of the spring (46) abuts against the slider (45), and the other end of the spring (46) abuts against the inner wall of the sleeve (42).

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