Battery stacking control method and system

Abstract

The invention discloses a battery stacking control method and system, and relates to the technical field of battery manufacturing. The battery stacking control method comprises the following steps: detecting a battery pack based on a visual unit, and controlling whether a pushing part works or not based on a detection result; if the detection result is abnormal, an alarm signal is sent out; if the detection result is normal, the control unit controls the pushing and pressing piece to approach the battery pack at a first speed until the pushing and pressing piece is in contact with the battery pack; after the pushing and pressing piece is in contact with the battery pack, the pushing and pressing piece is controlled to apply pressure to the battery pack at a second speed until the battery pack is completely pressed; the second speed is smaller than the first speed; and after the battery pack is completely pressed, controlling the pushing and pressing piece to return to the initial position, and completing battery stacking. The visual unit is used for detecting the battery packs, the action of the pushing and pressing piece is controlled according to the detection result, correct stacking of the battery packs is ensured, the quality and efficiency of battery pack assembling are improved, and meanwhile production safety is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of battery manufacturing, and in particular to a battery stacking control method and system. Background Art

[0002] With the rapid development of electric vehicles and energy storage systems, the demand for efficient and reliable battery assembly technology is growing.

[0003] The traditional battery stacking process has problems such as low detection accuracy and low degree of automation, which may lead to poor assembly of battery packs and affect the performance and safety of the final product. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a battery stack control method in a first aspect, comprising: The battery pack is inspected based on the visual unit, and the push piece is controlled to work based on the inspection result; if the inspection result is abnormal, an alarm signal is issued; If the detection result is normal, the control unit controls the pushing member to approach the battery pack at a first speed until the pushing member contacts the battery pack; After the pushing member contacts the battery pack, the pushing member is controlled to apply pressure to the battery pack at a second speed until the battery pack is completely pressed; the second speed is less than the first speed; After the battery pack is completely compressed, the pushing member is controlled to retract to the initial position to complete the battery stacking.

[0005] The detection of the battery pack based on the visual unit includes a first detection factor and a second detection factor; if the first detection factor is abnormal and / or the second detection factor is abnormal, an alarm signal is triggered.

[0006] Among them, the pushing member is connected to a pressure sensor and a displacement sensor; the pressure sensor is used to monitor the pressure value applied by the pushing member to the battery pack and send it to the control unit; the displacement sensor is used to obtain the displacement difference between the actual position of the pushing member and the initial position of the pushing member and send it to the control unit.

[0007] Among them, the control unit obtains the pressure value applied to the battery pack by the pushing member and outputs the time point when the pressure value increases from 0 as the first contact time; the control unit obtains the time point when the displacement difference of the displacement sensor is a preset displacement and outputs it as the second contact time; the preset displacement is the distance between the initial position of the pushing member and the battery pack; based on the first contact time and the second contact time, the actual contact time between the pushing member and the battery pack is obtained.

[0008] The control unit obtains the pressure value applied by the pushing member to the battery pack, and determines whether the battery pack is completely compressed based on a comparison result between the pressure value and a preset pressure value.

[0009] Among them, the control unit obtains the time point when the pressure value reaches the preset pressure value and outputs it as the actual pressing time; obtains the pressing duration based on the actual pressing time and the actual contact time, and judges the working performance of the pushing member based on the pressing duration.

[0010] Wherein, the battery stacking control method includes a manual mode, and the manual mode includes manual squeezing and manual retraction; based on the manual squeezing, the pushing member is controlled to move toward a side close to the battery pack, and based on the manual retraction, the pushing member is controlled to move toward a side away from the battery pack.

[0011] A second aspect of the present invention further provides a battery stack control system, which can be applied to the battery stack control method as described in any one of the above items, including: A control unit, used for controlling the travel speed of the pushing member and obtaining the pressure value and displacement of the pushing member; a vision unit, for detecting the position and status of the battery pack and sending the detection results to the control unit; an alarm unit, the alarm unit being connected to the control unit and determining whether to alarm based on an output signal of the control unit; A display unit is connected to the control unit to display the pressure value and displacement of the pushing member.

[0012] The third aspect of the present invention further provides an electronic device, comprising: a memory and a processor coupled to each other, wherein the processor is used to execute program instructions stored in the memory to implement the battery stack control method as described in any one of the above items.

[0013] A fourth aspect of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores program data, and the program data can be executed by a processor to implement the battery stack control method as described in any one of the above items.

[0014] Beneficial effects of the present invention: Different from the prior art, the battery stacking control method of the present invention includes: detecting the battery pack based on the visual unit, and controlling whether the push piece works based on the detection result; if the detection result is abnormal, an alarm signal is issued; if the detection result is normal, the control unit controls the push piece to approach the battery pack at a first speed until it contacts the battery pack; after the push piece contacts the battery pack, the push piece is controlled to apply pressure to the battery pack at a second speed until the battery pack is completely compressed; the second speed is less than the first speed; after the battery pack is completely compressed, the push piece is controlled to retreat to the initial position to complete the battery stacking. By using the visual unit to detect the battery pack and controlling the action of the push piece according to the detection result, the correct stacking of the battery pack is ensured, the quality and efficiency of the battery pack assembly are improved, and the safety of production is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a flow chart of an embodiment of a battery stack control method provided in the present application; Figure 2 A schematic diagram of the structure of an embodiment of a battery stack control system provided in this application; Figure 3 It is a structural schematic diagram of an embodiment of a computer device of the present application; Figure 4 It is a structural diagram of an embodiment of a computer-readable storage medium of the present application. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0017] In order to improve the assembly quality and efficiency of battery packs, the present application provides a battery stacking control method, specifically, Figure 1 As shown, Figure 1 The flowchart of an embodiment of the battery stack control method provided in this application includes the following steps: S11: The battery pack is inspected based on the visual unit, and the push piece is controlled to work based on the inspection result; if the inspection result is abnormal, an alarm signal is issued; the visual unit takes a photo of the battery pack, and the control unit analyzes the photo through the image processing algorithm to check whether the battery pack has any abnormality, such as whether the battery is placed upside down, whether there are foreign objects, etc. If there is a deviation in the position of the positive and negative poles between the battery packs, the control unit sends an alarm signal to the alarm; the alarm can be an audible and visual alarm such as an LED light or a buzzer, and there is no limitation on this. Visual inspection ensures that only qualified battery packs can enter the next process, which helps to improve the quality of the final product and reduce the rate of defective products.

[0018] S12: If the detection result is normal, the control unit controls the pushing member to approach the battery pack at a first speed until it contacts the battery pack; the control unit controls the pushing member to start and quickly approach the battery pack at the first speed according to a preset first speed parameter.

[0019] S13: After the pushing member contacts the battery pack, the pushing member is controlled to apply pressure to the battery pack at a second speed until the battery pack is completely pressed; the second speed is lower than the first speed; after the initial contact is detected, the control unit immediately switches the speed of the pushing member from the first speed to the second speed. The second speed is lower than the first speed, ensuring a gentler pushing process, preventing the pushing member from damaging the battery pack due to excessive speed, and reducing the risk of battery damage caused by rapid squeezing.

[0020] The first speed is faster, which can quickly move the pushing part to the vicinity of the battery pack, saving time and improving production efficiency; the second speed is slower, which ensures the accuracy of the pressing process, reduces rework and scrap rate caused by uneven pressure, and further improves production efficiency.

[0021] S14: After the battery pack is fully compressed, the pushing member is controlled to retract to the initial position to complete the battery stacking; the control unit sends an instruction to make the pushing member start to retract at a preset third speed; by returning the pushing member to the initial position in time after the battery pack is fully compressed, the battery pack is prevented from being damaged due to long-term squeezing.

[0022] After the pushing member retracts to the initial position, the retraction time can be achieved by adjusting the size of the third speed, that is, the greater the third speed, the shorter the retraction time; the smaller the third speed, the longer the retraction time; preferably, the preset value of the third speed is larger, which reduces the retraction time of the pushing member, thereby shortening the total time of a single stacking; after the pushing member retracts to the initial position, the next stacking cycle can be started immediately, realizing continuous operation and reducing waiting time.

[0023] It should be clarified that the present application does not limit the specific values ​​of the first speed, the second speed and the third speed. It only requires that the first speed is greater than the second speed. The speed value can be adjusted according to different battery packs and specific working conditions.

[0024] In summary, the battery stacking control method of the present application includes: detecting the battery pack based on the visual unit, and controlling whether the push piece works based on the detection result; if the detection result is abnormal, an alarm signal is issued; if the detection result is normal, the control unit controls the push piece to approach the battery pack at a first speed until it contacts the battery pack; after the push piece contacts the battery pack, the push piece is controlled to apply pressure to the battery pack at a second speed until the battery pack is completely compressed; the second speed is less than the first speed; after the battery pack is completely compressed, the push piece is controlled to retract to the initial position to complete the battery stacking. By using the visual unit to detect the battery pack and controlling the action of the push piece according to the detection result, the correct stacking of the battery pack is ensured, the quality and efficiency of the battery pack assembly are improved, and the safety of production is guaranteed.

[0025] In one embodiment, the detection of the battery pack based on the visual unit includes a first detection factor and a second detection factor; if the first detection factor is abnormal and / or the second detection factor is abnormal, an alarm signal is triggered. In this embodiment, the first detection factor is the placement direction of the positive and negative poles of the battery pack, and the second detection factor is whether there is a foreign object in the battery pack; the control unit determines whether the battery pack is placed upside down by identifying the direction indicator on the battery pack; the control unit detects whether there is a foreign object on the surface of the battery pack through an image processing algorithm.

[0026] If the battery pack is placed upside down and / or contains foreign matter, an alarm signal is triggered, the three-color light turns red, and the buzzer sounds. Maintenance personnel can locate the cause of the abnormality in time and repair it in time, improving work efficiency.

[0027] It should be clarified that in this embodiment, the first detection factor is the placement direction of the positive and negative poles of the battery pack, and the second detection factor is whether there are foreign objects in the battery pack; in other embodiments, the first detection factor and the second detection factor may be selected from other factors, such as battery pack size detection, battery pack arrangement detection or battery pack integrity detection, without any limitation; in this embodiment, two detection factors are set, and in other embodiments, three or more detection factors may be set.

[0028] In one embodiment, the pushing member is connected to a pressure sensor and a displacement sensor; the pressure sensor is used to monitor the pressure value applied by the pushing member to the battery pack and send it to the control unit; the displacement sensor is used to obtain the displacement difference between the actual position of the pushing member and the initial position of the pushing member and send it to the control unit; the pressure sensor initializes the pressure value to 0, indicating that the pushing member has not yet contacted the battery pack; before the pushing member starts to move, the displacement sensor records the initial position of the pushing member.

[0029] The control unit controls the pushing member to approach the battery pack at a first speed, the pressure sensor continuously monitors the pressure value applied by the pushing member and sends the data to the control unit; the displacement sensor continuously monitors the position change of the pushing member and sends the data to the control unit. The real-time data feedback of the pressure sensor and the displacement sensor enables the control unit to more accurately control the movement of the pushing member, ensure that the battery pack is subjected to uniform pressure, and improve overall safety.

[0030] In one embodiment, the control unit obtains the pressure value applied to the battery pack by the pushing member and outputs the time point when the pressure value increases from 0 as the first contact time; the control unit obtains the time point when the displacement difference of the displacement sensor is a preset displacement and outputs it as the second contact time; the preset displacement is the distance between the initial position of the pushing member and the battery pack; the actual contact time between the pushing member and the battery pack is obtained based on the first contact time and the second contact time.

[0031] The pushing member can apply pressure to the battery pack only after it contacts the battery pack, that is, the time point when the pressure value increases from 0 is the contact time between the pushing member and the battery pack; the time point when the pressure value increases from 0 is output as the first contact time; the displacement sensor obtains the displacement difference between the actual position and the initial position of the pushing member. When the displacement difference obtained by the displacement sensor is the preset displacement, it means that the pushing member contacts the battery pack at this time, and this time point is output as the second contact time.

[0032] The actual contact time between the pushing member and the battery pack is obtained by the time point when the pressure change occurs and the time point when the pushing member undergoes a preset displacement; for example, if the relative error between the first contact time and the second contact time is less than 5%, the first contact time is the actual contact time; if the relative error between the first contact time and the second contact time is greater than 5%, the second contact time is the actual contact time; the pressure sensor is easily damaged and produces errors due to long-term compression with the outer surface of the battery pack, and the second contact time corrects the first contact time to improve the accuracy of the actual contact time.

[0033] In one embodiment, the control unit obtains the pressure value applied by the pushing member to the battery pack, and determines whether the battery pack is completely compressed based on the comparison result between the pressure value and the preset pressure value; according to the specifications and process requirements of the battery pack, a preset pressure value is set, which represents the pressure value when the battery pack is completely compressed. The control unit compares the real-time pressure value with the preset pressure value. If the real-time pressure value is less than the preset pressure value, the pushing member continues to apply pressure to the battery pack at the second speed; if the real-time pressure value is not less than the preset pressure value, the control unit determines that the battery pack is completely compressed, and the pushing member retreats to the initial position at the third speed. By monitoring the pressure value in real time and comparing it with the preset pressure value, it can be ensured that the pushing member does not apply excessive pressure to the battery pack, avoiding battery damage caused by excessive squeezing.

[0034] In one embodiment, the control unit obtains the time point when the pressure value reaches the preset pressure value and outputs it as the actual pressing time; the pressing time is obtained based on the actual pressing time and the actual contact time, and the working performance of the push member is judged based on the pressing time. is the contact time between the push piece and the battery pack, the actual pressing time is the time point when the battery pack is pressed; the pressing time is: T= - T is the pressing time. The control unit can set a pressing time threshold according to the process requirements. ; If T is less than , it is judged that the working performance of the push piece is good; if T is greater than , judging that the working performance of the push piece is abnormal and needs to be inspected and maintained. By comparing the clamping time with the preset threshold, the working performance of the push piece can be evaluated, potential problems can be discovered in time, and the normal operation of the equipment can be ensured.

[0035] In one embodiment, the battery stacking control method includes a manual mode, which includes manual squeezing and manual retraction; the push piece is controlled to move toward the side close to the battery pack based on manual squeezing, and the push piece is controlled to move toward the side away from the battery pack based on manual retraction. The manual mode allows the operator to manually control the movement of the push piece when the automatic mode cannot meet the needs or encounters special circumstances to ensure the smooth progress of the production process. The operator can directly intervene in the movement of the push piece to avoid safety problems caused by misjudgment or failure in the automatic mode.

[0036] The present application provides a battery stack control system, which can apply the battery stack control method of any of the above embodiments, such as Figure 2 As shown, Figure 2 A schematic diagram of a battery stack control system according to an embodiment of the present application includes: A control unit, used for controlling the travel speed of the pushing member and obtaining the pressure value and displacement of the pushing member; a vision unit, for detecting the position and status of the battery pack and sending the detection results to the control unit; An alarm unit, which is connected to the control unit and determines whether to alarm based on an output signal of the control unit; The display unit is connected with the control unit to display the pressure value and displacement of the pushing member.

[0037] Through the coordinated work of the control unit, visual unit, alarm unit and display unit, the safety and quality of the battery stacking process can be significantly improved, the production process can be optimized, equipment wear can be reduced, and production costs can be reduced. It provides operators with comprehensive monitoring and control means to ensure efficient and high-quality production.

[0038] For the above embodiment, the present application provides a computer device, see Figure 3 , Figure 3 1 is a schematic diagram of a computer device according to an embodiment of the present application. The computer device includes a memory and a processor, wherein the memory and the processor are coupled to each other, the memory stores program data, and the processor is used to execute the program data to implement the steps of any embodiment of the battery stack control method described above.

[0039] In this embodiment, the processor may also be referred to as a CPU (Central Processing Unit). The processor may be an integrated circuit chip having signal processing capabilities. The processor may also be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0040] The method of the above embodiment can be implemented in the form of a computer program, so the present application proposes a computer readable storage medium, see Figure 4 , Figure 4 1 is a schematic diagram of a computer-readable storage medium according to an embodiment of the present invention. The computer-readable storage medium stores program data that can be run by a processor, and the program data can be executed by the processor to implement the steps of any embodiment of the battery stack control method described above.

[0041] The computer-readable storage medium in this embodiment may be a medium that can store program data, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, or may be a server that stores the program data. The server may send the stored program data to other devices for execution, or may execute the stored program data by itself.

[0042] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A battery stack control method, characterized in that: include: Detect the battery pack based on the visual unit, and control whether the push piece works based on the detection result; If the test result is abnormal, an alarm signal will be issued; If the detection result is normal, the control unit controls the pushing member to approach the battery pack at a first speed until the pushing member contacts the battery pack; After the pushing member contacts the battery pack, the pushing member is controlled to apply pressure to the battery pack at a second speed until the battery pack is completely pressed; the second speed is less than the first speed; After the battery pack is completely compressed, the pushing member is controlled to retract to the initial position to complete the battery stacking.

2. The battery stack control method according to claim 1, characterized in that: The detection of the battery pack based on the vision unit includes a first detection factor and a second detection factor; if the first detection factor is abnormal and / or the second detection factor is abnormal, an alarm signal is triggered.

3. The battery stack control method according to claim 2, characterized in that: The pushing member is connected to a pressure sensor and a displacement sensor; the pressure sensor is used to monitor the pressure value applied by the pushing member to the battery pack and send it to the control unit; the displacement sensor is used to obtain the displacement difference between the actual position of the pushing member and the initial position of the pushing member and send it to the control unit.

4. The battery stack control method according to claim 3, characterized in that: The control unit obtains the pressure value applied by the push member to the battery pack and outputs the time point when the pressure value increases from 0 as the first contact time; the control unit obtains the time point when the displacement difference of the displacement sensor is a preset displacement and outputs it as the second contact time; The preset displacement is the distance between the initial position of the pushing member and the battery pack; and the actual contact time between the pushing member and the battery pack is obtained based on the first contact time and the second contact time.

5. The battery stack control method according to claim 4, characterized in that: The control unit obtains the pressure value applied by the pushing member to the battery pack, and determines whether the battery pack is completely compressed based on a comparison result between the pressure value and a preset pressure value.

6. The battery stack control method according to claim 5, characterized in that: The control unit obtains the time point when the pressure value reaches the preset pressure value and outputs it as the actual pressing time; obtains the pressing duration based on the actual pressing time and the actual contact time, and judges the working performance of the pushing member based on the pressing duration.

7. The battery stack control method according to any one of claims 1 to 6, characterized in that: The battery stacking control method includes a manual mode, which includes manual squeezing and manual retraction; based on the manual squeezing, the pushing member is controlled to move toward a side close to the battery pack, and based on the manual retraction, the pushing member is controlled to move toward a side away from the battery pack.

8. A battery stack control system, which can be applied to the battery stack control method according to any one of claims 1 to 7, characterized in that: include: A control unit, used for controlling the travel speed of the pushing member and obtaining the pressure value and displacement of the pushing member; a vision unit, for detecting the position and status of the battery pack and sending the detection results to the control unit; an alarm unit, the alarm unit being connected to the control unit and determining whether to alarm based on an output signal of the control unit; A display unit is connected to the control unit to display the pressure value and displacement of the pushing member.

9. An electronic device, characterized in that: The electronic device comprises: a memory and a processor coupled to each other, wherein the processor is used to execute program instructions stored in the memory to implement the battery stack control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores program data, and the program data can be executed by a processor to implement the battery stack control method according to any one of claims 1 to 7.

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