Stack accuracy detection device and flow battery stack stacking system

Abstract

The application relates to a stacking precision detection device and a flow battery stack stacking system. The stacking precision detection device comprises a mounting seat, the mounting seat is provided with a support surface for stacking an electric pile plate frame; a support frame, the support frame comprises a mounting frame, the mounting frame is arranged above the support surface in a spaced manner; an image acquisition mechanism, the image acquisition mechanism is connected to the mounting frame, the image acquisition mechanism comprises a camera for acquiring an image of the electric pile plate frame above the support surface and a light source module, and the camera is signal-connected with a carrying robot. The image acquisition mechanism on the mounting frame can clearly acquire the image information of the electric pile plate frame above the support surface, the carrying robot can accurately identify the offset of each layer of the electric pile plate frame stack, and therefore the stacking precision of the electric pile plate frame is improved, and the performance of the flow battery is improved.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a stacking accuracy testing device and a flow battery stacking system. Background Technology

[0002] A flow battery is an electrochemical device that stores electrical energy through the flow of an electrolyte. It consists of a stack unit, an electrolyte, an electrolyte storage and supply unit, and a management and control unit. Its positive and negative electrolytes are stored separately and circulate independently. The conversion between electrical and chemical energy is achieved through changes in the valence state of the active materials. It offers advantages such as high safety, long lifespan, and independent power and capacity design, making it suitable for large-scale energy storage applications.

[0003] The battery stack frame is the main circulation channel for electrolyte flow in flow batteries. Currently, the production process uses robots for automatic stacking. However, the stacking process relies solely on robot vision inspection, which can easily lead to the inability to accurately identify the offset of each layer of the battery stack frame, thus adversely affecting the performance of the flow battery. Utility Model Content

[0004] Therefore, it is necessary to provide a stacking accuracy detection device and a flow battery stacking system to address the problem that conventional technologies often fail to accurately identify the offset of each layer of the stack, which adversely affects the performance of flow batteries.

[0005] This application provides a stacking accuracy detection device applied to a flow battery stacking system. The flow battery stacking system includes a handling robot. The stacking accuracy detection device includes: a mounting base having a support surface for stacking battery stack frames; a support frame including mounting brackets spaced apart above the support surface; and an image acquisition mechanism connected to the mounting brackets. The image acquisition mechanism includes a camera for acquiring images of the battery stack frames located above the support surface and a light source module. The camera is signal-connected to the handling robot.

[0006] According to one embodiment of this application, the support frame further includes an upright frame, the mounting frame is slidably connected to the upright frame, and the stacking accuracy detection device further includes a height adjustment mechanism, the height adjustment mechanism is connected to the upright frame and the mounting frame, and the height adjustment mechanism is configured to adjust the height of the mounting frame.

[0007] According to one embodiment of this application, the height adjustment mechanism includes: a screw, vertically arranged and rotatably connected to the upright; a nut, slidably connected to the upright and threadedly connected to the screw; and a drive motor, mounted on the mounting base and drivenly connected to the screw.

[0008] According to one embodiment of this application, the mounting frame includes: a mounting part connected to the image acquisition mechanism; and at least two sliding parts spaced apart in a horizontal direction, wherein the sliding parts are fixedly connected to the mounting part and slidably connected to the upright frame; wherein the nut is installed between two adjacent sliding parts.

[0009] According to one embodiment of this application, the mounting bracket further includes: a reinforcing rib located below the mounting portion and fixedly connected to both the mounting portion and the sliding portion.

[0010] According to one embodiment of this application, the height adjustment mechanism further includes a locking component connecting the upright and the mounting bracket, the locking component being configured to switch between a first state of locking the relative position of the mounting bracket and the upright and a second state of unlocking.

[0011] According to one embodiment of this application, the locking component includes: a wedge block slidably connected to the mounting bracket, the bracket having a plurality of positioning slots along the vertical direction, wherein in a first state, the wedge block is inserted into the bracket through any of the positioning slots, and in a second state, the wedge block is disengaged from the bracket; and a telescopic drive member connected to the wedge block, the telescopic drive member being configured to drive the wedge block closer to or further away from the bracket.

[0012] According to one embodiment of this application, it further includes: a distance sensor, mounted on the mounting frame, for acquiring the distance between the top layer of the fuel cell stack frame on the support surface and the mounting frame; and a controller, signal-connected to the distance sensor and signal-connected to the height adjustment mechanism and / or the locking component.

[0013] According to one embodiment of this application, the electrode stack frame is provided with a plurality of positioning holes, and a plurality of image acquisition mechanisms are provided, with the plurality of image acquisition mechanisms correspondingly disposed above the plurality of positioning holes of the electrode stack frame stacked on the support surface.

[0014] This application also provides a flow battery stacking system, including: a handling robot; and a stacking accuracy detection device according to the above embodiments.

[0015] The aforementioned stacking accuracy detection device and flow battery stacking system can clearly acquire image information of the stack frame above the support surface through the image acquisition mechanism on the mounting frame. This enables the handling robot to accurately identify the offset of each layer of the stack frame, thereby improving the stack frame stacking accuracy and improving the performance of the flow battery. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of a stacking accuracy detection device provided in an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the overall structure of a stacking accuracy detection device provided in another embodiment of this application.

[0018] Figure 3 This is a top view of the mounting frame and upright frame cooperation structure in a stacking accuracy detection device provided in an embodiment of this application.

[0019] Figure 4 This is a front view of the mounting bracket in a stacking accuracy detection device provided in an embodiment of this application.

[0020] Figure 5 This is a side view of the stand in a stacking accuracy detection device provided in an embodiment of this application.

[0021] Figure 6 This is a front view of a wedge block in a stacking accuracy detection device provided in an embodiment of this application.

[0022] Figure label:

[0023] 100. Mounting base; 101. Support surface;

[0024] 200. Support frame; 210. Mounting frame; 211. Mounting part; 212. Sliding part; 213. Reinforcing rib; 220. Stand; 221. Positioning groove;

[0025] 300. Image acquisition mechanism;

[0026] 400. Height adjustment mechanism; 410. Screw; 420. Nut; 430. Drive motor; 440. Locking assembly; 441. Wedge block; 4411. Wedge surface; 442. Telescopic drive component;

[0027] 500, fuel cell stack frame; 510, positioning holes. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] See Figure 1 , Figure 1 This is a schematic diagram of the overall structure of a stacking accuracy detection device provided in one embodiment of this application. The stacking accuracy detection device provided in one embodiment of this application is applied to a flow battery stacking system. The flow battery stacking system includes a handling robot used to stack stack frames 500 along a vertical direction.

[0035] The stacking accuracy detection device includes a mounting base 100, a support frame 200, and an image acquisition mechanism 300. The mounting base 100 has a support surface 101 for stacking electrode stack frames 500. The support frame 200 includes mounting brackets 210, which are spaced apart above the support surface 101. The image acquisition mechanism 300 is connected to the mounting brackets 210 and includes a camera for acquiring images of the electrode stack frames 500 located above the support surface 101 and a light source module. The camera is signal-connected to a handling robot.

[0036] Specifically, the mounting base 100 has a support surface 101 for stacking the fuel cell stack frames 500, providing a stable stacking foundation for the fuel cell stack frames 500. The support frame 200 includes mounting brackets 210, spaced apart above the support surface 101, providing mounting positions for the image acquisition mechanism 300. A camera captures images of the fuel cell stack frames 500, and a light source module provides appropriate lighting conditions to ensure image quality. The camera is signal-connected to a handling robot to transmit the acquired image information to the robot in real time for processing and analysis.

[0037] When the fuel cell stack frame 500 is transported onto the support surface 101 for stacking, the camera of the image acquisition mechanism 300 starts working to capture images of the fuel cell stack frame 500. The light source module provides sufficient and uniform illumination to ensure that the camera can acquire clear and accurate images. The camera transmits the acquired image information to the handling robot in real time. The image processing system built into the handling robot analyzes and processes the received images, identifying the stacking position and offset of the fuel cell stack frame 500. Based on the analysis results of the image processing system, the handling robot adjusts its stacking actions to ensure that the fuel cell stack frame 500 can be accurately and stably stacked in the designated position.

[0038] For example, the fuel cell stack frame 500 is provided with a plurality of positioning holes 510 (e.g., distributed at the four corners of the fuel cell stack frame 500). The image processing system built into the handling robot analyzes and processes the received image, identifies the position of the positioning holes 510 of the fuel cell stack frames 500 stacked on the support surface 101 of the fuel cell stack frame 500, and identifies the stacking position and offset of the fuel cell stack frames 500 based on the position of the positioning holes 510 of the fuel cell stack frames 500 stacked on the support surface 101 of the fuel cell stack frame 500.

[0039] The image acquisition mechanism 300 acquires real-time image information of the fuel cell stack frame 500, and the data is precisely processed and analyzed by a handling robot. This stacking accuracy detection device significantly improves the stacking accuracy of the fuel cell stack frame 500. Accurate stacking accuracy helps reduce the generation of defective products due to improper stacking, lowering production costs and scrap rates. Furthermore, the automated and intelligent stacking process reduces manual intervention and improves production efficiency.

[0040] Combination Figure 2 In some embodiments, the support frame 200 further includes a stand 220, and the mounting frame 210 is slidably connected to the stand 220. The stacking accuracy detection device further includes a height adjustment mechanism 400, which connects the stand 220 and the mounting frame 210 and is configured to adjust the height of the mounting frame 210.

[0041] The vertical support 220 provides a stable ascending and descending track for the mounting frame 210, ensuring its stability during height adjustment. The mounting frame 210 is slidably connected to the support 220, and the height adjustment mechanism 400 connects the support 220 and the mounting frame 210. During stacking, the height of the image acquisition mechanism 300 can be flexibly adjusted as needed to obtain clearer and more accurate images of the electrode stack frame 500. For example, as the number of electrode stack frames 500 increases, the distance between the top electrode stack frame 500 and the image acquisition mechanism 300 decreases, reducing the camera's focusing effect. In this case, the height of the mounting frame 210 can be adjusted via the height adjustment mechanism 400 to ensure the image acquisition mechanism 300 is always at the optimal working height, thereby improving the detection capability of the electrode stack frame 500 stacking accuracy and helping to reduce offset and errors during stacking.

[0042] Combination Figure 2 and Figure 3 In some embodiments, the height adjustment mechanism 400 includes a screw 410, a nut 420, and a drive motor 430. The screw 410 is vertically arranged and rotatably connected to the support frame 220. The nut 420 is slidably connected to the support frame 220 and threadedly connected to the screw 410. The drive motor 430 is mounted on the mounting base 100 and is drively connected to the screw 410.

[0043] The screw 410 is vertically positioned, with its upper or lower end connected to the support frame 220 via bearings or other rotating connectors, ensuring that the screw 410 can rotate freely around its axis without horizontal or vertical deviation. The nut 420 has internal threads that match those of the screw 410 and is threadedly fitted onto the screw 410. The outer side of the nut 420 is connected to the support frame 220 via sliders, guide rails, or other sliding connectors, allowing the nut 420 to slide up and down along the screw 410 as it rotates, without rotating. The drive motor 430 is mounted on the mounting base 100, and its output shaft is connected to one end of the screw 410 via a coupling, gear drive, belt drive, or other means to transmit power.

[0044] When the height of the mounting bracket 210 needs to be adjusted, the drive motor 430 is started, causing its output shaft to rotate. The rotation of the drive motor 430 is transmitted to the screw 410 through a transmission mechanism, causing the screw 410 to rotate. Since the nut 420 is threadedly connected to the screw 410 and slidably connected to the upright bracket 220, the rotation of the screw 410 causes the nut 420 to slide up and down on the upright bracket 220. The up and down sliding of the nut 420 causes the mounting bracket 210 connected to it to adjust its height synchronously. By controlling the rotation direction and speed of the drive motor 430, the height position of the mounting bracket 210 can be precisely controlled.

[0045] The mechanical structure composed of screw 410, nut 420, and stand 220 is stable and reliable, capable of withstanding large loads and vibrations, ensuring the stability and reliability of the stacking accuracy detection device during long-term operation. Components such as screw 410, nut 420, and drive motor 430 are standardized products, easy to purchase and replace. Furthermore, its simple and clear structure facilitates routine maintenance and upkeep.

[0046] In some other embodiments, a pneumatic or hydraulic cylinder can be used as the drive source. The height adjustment of the mounting bracket 210 can be achieved by controlling the extension and retraction of the pneumatic or hydraulic cylinder. For example, one end of the pneumatic or hydraulic cylinder is fixed to the upright 220 or the mounting base 100, and the other end is connected to the mounting bracket 210. Alternatively, an electric actuator can be used as the drive source. The electric actuator integrates a motor, a reducer, and a screw 410 and nut 420 mechanism. The extension and retraction of the actuator is achieved by controlling the rotation of the motor, thereby driving the mounting bracket 210 to adjust its height. Of course, other structural forms capable of achieving height adjustment of the mounting bracket 210 should also be within the scope of protection of this embodiment.

[0047] In some embodiments, the mounting bracket 210 includes a mounting portion 211 and a sliding portion 212. The mounting portion 211 is connected to the image acquisition mechanism 300, and at least two sliding portions 212 are spaced apart in the horizontal direction. The sliding portions 212 are fixedly connected to the mounting portion 211 and slidably connected to the stand 220. A nut 420 is installed between two adjacent sliding portions 212.

[0048] Mounting section 211 serves as a support platform for image acquisition mechanism 300, and is provided with interfaces or mounting holes for fixing image acquisition mechanism 300. Image acquisition mechanism 300 (such as camera and light source module) is fixedly connected to mounting section 211 by bolts, screws or other fasteners to ensure the stability of image acquisition mechanism 300 during the movement of mounting frame 210. At least two sliding sections 212 are provided at horizontal intervals. Sliding sections 212 are fixedly connected to mounting section 211 by welding, bolt connection or other fixing methods, or the sliding sections 212 and mounting section 211 are integrally formed into a whole structure. Sliding sections 212 are slidably connected to guide rails or grooves on upright frame 220, allowing mounting frame 210 to slide up and down along upright frame 220. Nut 420 is installed between two adjacent sliding sections 212, specifically by providing nut 420 mounting seat 100 on sliding section 212 or directly fixing nut 420 to a specific position on sliding section 212. Nut 420 is threadedly connected to screw 410. When screw 410 rotates, nut 420 drives sliding part 212 and mounting part 211 fixedly connected thereto to slide up and down. As the height of mounting bracket 210 is adjusted, the image acquisition mechanism 300 fixedly connected thereto will also adjust its height synchronously, thereby accurately acquiring the image of fuel cell stack frame 500.

[0049] The sliding connection design between the sliding part 212 of the mounting bracket 210 and the upright bracket 220 ensures the smoothness and stability of the mounting bracket 210 during height adjustment, reducing the impact of vibration and offset on image acquisition. The nut 420 is located between adjacent sliding parts 212, which can increase drive stability and prevent uneven force on the mounting bracket 210 from causing increased sliding resistance or even jamming.

[0050] Combination Figure 4 In some embodiments, the mounting bracket 210 further includes a reinforcing rib 213, which is located below the mounting portion 211 and is fixedly connected to the mounting portion 211 and the sliding portion 212 respectively.

[0051] The reinforcing rib 213 can be fixedly connected to the mounting part 211 and to the sliding part 212 by welding, bolting or other fixing methods. Alternatively, the reinforcing rib 213 can be integrally formed with the mounting part 211 and the sliding part 212. The reinforcing rib 213 can be a triangular or rectangular rib structure, which is not specifically limited here.

[0052] The reinforcing ribs 213 significantly improve the load-bearing capacity of the mounting bracket 210, enabling it to withstand heavier image acquisition mechanisms 300 and other accessories without easily deforming or being damaged. The stable structure of the mounting bracket 210 ensures the accuracy and stability of the image acquisition mechanism 300 during height adjustment, thereby improving the accuracy of stacking precision detection.

[0053] Of course, in some other embodiments, a reinforcing rib 213 connecting the sliding part 212 may be provided above the mounting part 211, which will not be described in detail here. In addition, more than two reinforcing ribs 213 may be provided as needed; for example, each sliding part 212 may be connected to at least one reinforcing rib 213.

[0054] In some embodiments, the height adjustment mechanism 400 further includes a locking component 440 connected to the stand 220 and the mounting bracket 210, and the locking component 440 is configured to switch between a first state of locking the mounting bracket 210 relative to the stand 220 and a second state of unlocking.

[0055] When the locking component 440 is in its first state, it ensures the stability of the mounting bracket 210 after the height is adjusted to the designated position, preventing the mounting bracket 210 from sliding or shifting due to external forces (such as vibration, impact, etc.). The locking action of the locking component 440 prevents stacking errors or damage to the electrode stack frame 500 caused by accidental sliding of the mounting bracket 210 during stacking, thus improving the safety of the stacking process. A stable position of the mounting bracket 210 helps the image acquisition mechanism 300 obtain more accurate image information of the electrode stack frame 500, thereby improving the detection capability of stacking accuracy.

[0056] Combination Figure 3 , Figure 5 and Figure 6 In some embodiments, the locking assembly 440 includes a wedge block 441 and a telescopic drive member 442. The wedge block 441 is slidably connected to the mounting bracket 210. The upright bracket 220 is provided with a plurality of positioning slots 221 along the vertical direction. In a first state, the wedge block 441 is engaged with the upright bracket 220 through any of the positioning slots 221. In a second state, the wedge block 441 is disengaged from the upright bracket 220. The telescopic drive member 442 is connected to the wedge block 441 and is configured to drive the wedge block 441 toward or away from the upright bracket 220.

[0057] The wedge block 441 is connected to the mounting bracket 210 via a slide rail, slide groove, or other sliding connector to ensure that the wedge block 441 can slide smoothly on the mounting bracket 210. One end of the telescopic drive component 442 (such as a cylinder, electric push rod, or electromagnet) is fixed to the mounting bracket 210, and the other end is connected to the wedge block 441 to drive the sliding of the wedge block 441. The upright 220 is provided with a plurality of positioning grooves 221 along the vertical direction. These positioning grooves 221 match the shape of the wedge block 441 and are used to insert the wedge block 441 in the locked state.

[0058] The wedge block 441 has one or more inclined wedge-shaped surfaces 4411. The inclination angle is designed according to the locking requirements and the shape of the positioning groove 221 of the stand 220. For example, the inclination angle ranges from 10° to 45°, depending on the required locking force and ease of operation. The mating surface of the wedge block 441 and the positioning groove 221 can be flat or curved, matching the shape of the positioning groove 221 to ensure a tight fit. Optionally, the edges of the wedge block 441 are chamfered or rounded to facilitate insertion into the positioning groove 221 and reduce jamming.

[0059] Once the mounting bracket 210 is adjusted to the designated height, the telescopic drive 442 drives the wedge block 441 to slide towards the upright 220. The wedge block 441 enters any of the positioning slots 221 on the upright 220, forming a tight fit with the upright 220, thereby locking the relative position of the mounting bracket 210 and the upright 220 and preventing the mounting bracket 210 from sliding or shifting due to external forces. When it is necessary to adjust the height of the mounting bracket 210, the telescopic drive 442 drives the wedge block 441 to slide away from the upright 220. The wedge block 441 disengages from the positioning slot 221, releasing the tight fit with the upright 220, allowing the mounting bracket 210 to slide freely for height adjustment.

[0060] In addition, the switching process of the locking component 440 is achieved by the drive of the telescopic drive component 442, which is simple and quick to operate and improves work efficiency.

[0061] In some other embodiments, the locking assembly 440 may also use an electromagnet as the locking element. The electromagnet is fixed to the mounting bracket 210, and a metal block or magnetic material is disposed at a corresponding position on the upright bracket 220. When it is necessary to lock the mounting bracket 210, the electromagnet is energized to generate magnetic force, attracting the metal block or magnetic material on the upright bracket 220 to achieve locking. When it is necessary to unlock, the electromagnet is de-energized, the magnetic force disappears, and the mounting bracket 210 can slide freely.

[0062] In some other embodiments, the locking assembly 440 includes a pressing element and a friction plate or friction wheel, which is fixed to the mounting bracket 210 and contacts the surface of the upright bracket 220. The pressing element includes a rotary motor and a cam connected to the rotary motor, the cam being connected to the friction plate or friction wheel. When it is necessary to lock the mounting bracket 210, the rotary motor drives the cam to rotate, adjusting the pressure between the friction plate or friction wheel and the upright bracket 220, increasing the friction force, and thus achieving locking. When it is necessary to unlock, the friction force is reduced, allowing the mounting bracket 210 to slide freely.

[0063] In some embodiments, the stacking accuracy detection device further includes a distance sensor and a controller. The distance sensor is mounted on the mounting bracket 210 and is used to obtain the distance between the top layer of the stack plate frame 500 on the support surface 101 and the mounting bracket 210. The controller is signal-connected to the distance sensor and the height adjustment mechanism 400.

[0064] The controller is configured to control the height adjustment mechanism 400 to adjust the height of the mounting bracket 210 based on the detection signal from the distance sensor.

[0065] For example, the distance sensor is a laser rangefinder (such as the Euroray A090 / A200) or a TOF photoelectric sensor (such as the ELT-M series). The sensor is fixed to the mounting bracket 210 by a bracket to ensure unobstructed access. A rigid connection is used between the sensor and the mounting bracket 210 to prevent vibration from affecting measurement accuracy. The sensor can be connected to the controller via RS485, CAN, or analog interfaces. The controller controls the drive motor 430 through digital output or analog signals.

[0066] The controller receives the detection signal from the distance sensor and compares it with the preset target height. If there is a deviation between the detection distance and the target height, the controller calculates the adjustment amount using a PID algorithm and outputs a control signal to the drive motor 430. The drive motor 430 drives the screw 410 to rotate, and the nut 420 slides along the screw 410 to adjust the height of the mounting bracket 210 until the detection distance reaches the target value.

[0067] By integrating a distance sensor and controller, along with a height adjustment mechanism 400, the stacking accuracy detection device achieves automated and high-precision control of the mounting frame 210 height. This not only significantly improves stacking accuracy and operational efficiency but also enhances the system's stability, reliability, and intelligence.

[0068] In some embodiments, the controller is signal-connected to the locking component 440.

[0069] The controller can be connected to the drive component (such as telescopic drive 442) of the locking assembly 440 via a signal line, or it can be connected to the drive component of the locking assembly 440 via wireless transmission.

[0070] The controller is configured to receive signals from the distance sensor and determine whether the mounting bracket 210 needs to be locked based on preset logic. When locking is required, the controller sends a locking signal to the locking component 440; when unlocking is required, the controller sends an unlocking signal.

[0071] For example, the distance sensor transmits a detection signal to the controller. After receiving the signal, the controller determines whether the distance between the mounting bracket 210 and the top layer fuel cell stack frame 500 reaches a preset value.

[0072] When the distance between the mounting bracket 210 and the top layer fuel cell plate frame 500 reaches the preset value, and the height of the mounting bracket 210 is adjusted to the specified position, it is necessary to lock the mounting bracket 210 by sending a locking signal to the telescopic drive component 442 of the locking assembly 440. After receiving the signal, the telescopic drive component 442 drives the wedge block 441 to slide towards the upright frame 220, entering the positioning groove 221 on the upright frame 220, forming a tight fit with the upright frame 220, thereby locking the relative position of the mounting bracket 210 and the upright frame 220.

[0073] When the distance between the mounting bracket 210 and the top layer fuel cell stack frame 500 does not reach the preset value, and it is determined that the height of the mounting bracket 210 needs to be adjusted, the controller sends an unlocking signal to the telescopic drive component 442 of the locking assembly 440. After receiving the signal, the telescopic drive component 442 drives the wedge block 441 to slide away from the upright frame 220, disengage from the positioning groove 221, release the tight fit with the upright frame 220, and allow the mounting bracket 210 to slide freely for height adjustment.

[0074] By connecting the controller to the locking component 440, precise locking and unlocking of the mounting bracket 210 height is achieved, ensuring the stability of the mounting bracket 210 during stacking and thus improving stacking accuracy. Furthermore, the locking and unlocking process is automated, reducing manual intervention and improving stacking efficiency.

[0075] In some embodiments, the electrode stack frame 500 is provided with a plurality of positioning holes 510, and a plurality of image acquisition mechanisms 300 are provided. The number of image acquisition mechanisms 300 is the same as the number of electrode stack frames 500. The plurality of image acquisition mechanisms 300 are correspondingly arranged above the plurality of positioning holes 510 of the electrode stack frames 500 stacked above the support surface 101.

[0076] For example, the fuel cell stack frame 500 is provided with four positioning holes 510, which are located at the four corners of the fuel cell stack frame 500. Correspondingly, four image acquisition mechanisms 300 are provided. The four image acquisition mechanisms 300 can cover the four corners of the rectangular stacking area. All image acquisition mechanisms 300 are fixed at the same horizontal height by rigid brackets to ensure a consistent shooting angle.

[0077] The rectangularly arranged image acquisition units 300 can cover the entire stacking area, eliminating detection blind spots. Through multi-view image fusion, positioning errors can be effectively reduced, meeting the requirements of precise stacking. In addition, multiple image acquisition units 300 can provide redundant data; when one image acquisition unit 300 fails, the remaining image acquisition units 300 can still complete the detection task.

[0078] This application also provides a flow battery stacking system, including a handling robot and a stacking accuracy detection device according to any of the above embodiments.

[0079] The flow battery stacking system provided in this application integrates a handling robot and a stacking accuracy detection device, achieving automation, high precision, and high reliability in the flow battery stacking process. This reduces problems such as internal short circuits and leakage caused by stacking deviations, improving battery performance and lifespan. It meets the high consistency and high reliability requirements of flow batteries and is suitable for large-scale energy storage systems.

[0080] For example, the handling robot is a six-axis collaborative robot or a SCARA robot, which has high speed and high repeatability positioning accuracy, and can quickly complete the gripping, handling and stacking of plates and frames.

[0081] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A stacking accuracy detection device, characterized in that, An application in a flow battery stacking system, the flow battery stacking system including a handling robot, the stacking accuracy detection device comprising: Mounting base, the mounting base having a support surface for stacking electric stack frames; A support frame, the support frame including mounting frames, the mounting frames being spaced apart above the support surface; An image acquisition mechanism is connected to the mounting frame. The image acquisition mechanism includes a camera for acquiring images of the electric stack frame located above the support surface and a light source module. The camera is signal-connected to the handling robot.

2. The stacking accuracy detection device according to claim 1, characterized in that, The support frame further includes an upright frame, and the mounting frame is slidably connected to the upright frame. The stacking accuracy detection device further includes: A height adjustment mechanism is provided, which connects the upright and the mounting frame, and is configured to adjust the height of the mounting frame.

3. The stacking accuracy detection device according to claim 2, characterized in that, The height adjustment mechanism includes: The screw is vertically arranged and rotatably connected to the upright frame; The nut is slidably connected to the upright and threadedly connected to the screw. A drive motor is mounted on the mounting base and is connected to the screw drive.

4. The stacking accuracy detection device according to claim 3, characterized in that, The mounting bracket includes: The mounting section connects to the image acquisition mechanism; At least two sliding parts are provided at intervals along the horizontal direction. The sliding parts are fixedly connected to the mounting parts and slidably connected to the uprights. The nut is installed between two adjacent sliding parts.

5. The stacking accuracy detection device according to claim 4, characterized in that, The mounting bracket also includes: A reinforcing rib is located below the mounting portion and is fixedly connected to both the mounting portion and the sliding portion.

6. The stacking accuracy detection device according to claim 3, characterized in that, The height adjustment mechanism also includes: A locking component, connecting the upright and the mounting bracket, is configured to switch between a first state of locking the mounting bracket relative to the upright and a second state of unlocking.

7. The stacking accuracy detection device according to claim 6, characterized in that, The locking component includes: A wedge-shaped block is slidably connected to the mounting bracket. The upright is provided with multiple positioning slots along the vertical direction. In the first state, the wedge-shaped block is inserted and engaged with the upright through any of the positioning slots. In the second state, the wedge-shaped block is disengaged from the upright. A telescopic drive is connected to the wedge block, and the telescopic drive is configured to drive the wedge block closer to or further away from the upright.

8. The stacking accuracy detection device according to claim 6 or 7, characterized in that, Also includes: A distance sensor, mounted on the mounting frame, is used to obtain the distance between the fuel cell stack frame located on the top layer of the support surface and the mounting frame; as well as The controller is signal-connected to the distance sensor and to the height adjustment mechanism and / or the locking component.

9. The stacking accuracy detection device according to any one of claims 2 to 7, characterized in that, The fuel cell stack frame is provided with multiple positioning holes, and multiple image acquisition mechanisms are provided. The multiple image acquisition mechanisms are correspondingly positioned above the multiple positioning holes of the fuel cell stack frame stacked on the support surface.

10. A flow battery stacking system, characterized in that, include: Handling robots; as well as The stacking accuracy detection device as described in any one of claims 1 to 9.

Images