Hydrogen fuel cell stack module stacking method, device, equipment and medium

Abstract

The invention relates to a hydrogen fuel cell stack module stacking method, apparatus and device, and a medium, an optical detection module is used to scan the edge of a to-be-stacked stack module, and the to-be-stacked stack module obtains assembly position data of each component in the to-be-stacked stack module; according to the assembling position data, deviation data and deviation configuration of the to-be-stacked electric pile are obtained; and according to the deviation data, the deviation configuration and the stack deviation limit containment interval constraint of the to-be-stacked stack, calculating a stacking feasible position interval of the to-be-stacked stack so as to obtain an optimized position strategy of the to-be-stacked stack, and stacking the to-be-stacked stack according to the optimized position strategy. And when the total stacking layer number on the stack assembly platform reaches a preset target value, stacking is stopped, and the total stacking layer number and assembly deviation of the stack are stored in a data processing display module. Compared with the prior art, the method has the advantages of high precision, high adaptability, high efficiency and the like.

Description

Technical Field

[0001] The present invention relates to the field of hydrogen fuel cell technology, and in particular to a method, device, equipment and medium for stacking hydrogen fuel cell stack modules. Background Art

[0002] Hydrogen fuel cells are an efficient and clean energy device with the advantages of high efficiency, high power density, rapid low-temperature start-up and low pollution. They have good application prospects in many fields such as transportation, aerospace, etc. Hydrogen fuel cell monomers are composed of bipolar plates, sealing rubber, and membrane electrode assemblies. Usually, the output voltage of hydrogen fuel cell monomers is about 1V, which is difficult to meet the power generation capacity requirements. Therefore, the products in actual use are mostly large-scale stack structures containing hundreds of layers of monomers. During the assembly process of the stack, hundreds of hydrogen fuel cell monomers are stacked in series according to the actual current, voltage and power requirements, and the end plates and fasteners are used to tightly package the internal structure together to form a hierarchical stack structure.

[0003] The stacked structure of hundreds of single cells in series in the battery stack places high demands on the assembly process. The high-power battery stack assembled with large-area, thin-thick, and light-weight bipolar plates, sealant layers, and membrane electrode assemblies has an even more urgent need to achieve high-quality and high-efficiency assembly in a micron-level space. However, during the assembly process of the battery stack, the shape error, size error, assembly error, and error caused by the slip of parts under compression load cannot be avoided. With hundreds of layers of components stacked and assembled, the deviations in all directions of the battery stack are continuously transmitted and accumulated, resulting in the deviation of the battery stack exceeding the assembly accuracy requirements, unqualified assembly quality, and directly causing the performance degradation of the battery stack and the failure of the sealing structure. Therefore, how to reduce the assembly deviation of the battery stack module and improve the overall assembly quality and consistency of the battery stack during the assembly process is a technical problem that needs to be solved. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide a hydrogen fuel cell stack module stacking method, device, equipment and medium. By collecting stack module parameters, calculating stack module assembly deviations, calculating stack module stacking position intervals, and optimizing stack module stacking positions, the error accumulation is reduced, the assembly deviation of the stack module is ensured to be within the required range of assembly accuracy, and the assembly quality of the stack module is improved.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] According to one aspect of the present invention, a method for stacking hydrogen fuel cell stack modules is provided, and the specific steps include:

[0007] S1. Use an optical detection module to scan the edge of the stack module to be stacked, and obtain the assembly position data of each component inside the stack module to be stacked, including the number of stacking layers, the overall geometric dimensions, and the assembly position coordinates of the components in each stack module to be stacked;

[0008] S2. Obtaining deviation data and deviation configuration of the battery stack to be stacked according to the stacking position data;

[0009] S3, calculating the stacking feasible position interval of the stack to be stacked according to the deviation data, deviation configuration and stack deviation limit tolerance interval constraint of the stack to be stacked;

[0010] S4, obtaining an optimized position strategy for the battery stack to be stacked according to the feasible stacking position interval, and stacking the battery stack to be stacked according to the optimized position strategy;

[0011] S5. When the total number of stacking layers on the battery stack assembly platform reaches a preset target value, the stacking is stopped, and the total number of stacking layers and assembly deviation of the battery stack are stored in the data processing and display module 3.

[0012] The edge of the battery stack in S1 is the edge of the battery stack module to be stacked parallel to the stacking direction.

[0013] In S2, the deviation between the assembly position coordinates of each component and the corresponding reference coordinates is calculated to obtain the deviation data of each component.

[0014] The assembly deviation of the battery stack to be stacked is calculated based on the deviation data of each component, and the deviation configuration of the battery stack to be stacked is analyzed.

[0015] In S3, according to the stack deviation limit tolerance range and the assembly deviation of the stack to be stacked, the expression of the stacking feasible position variation range is obtained as follows:

[0016] γ=δ-ε1=γ1+γ2,

[0017] Among them, γ is the range of feasible stacking position variation, δ is the stack deviation limit tolerance interval, ε1 is the assembly deviation of the stack to be stacked, γ1 is the distance from the left end point of ε1 to the left end point of δ, and γ2 is the distance from the right end point of ε1 to the right end point of δ.

[0018] Taking the bottom layer of the stack to be stacked as the reference position, according to the range of the feasible stacking position, the expression of the feasible stacking position interval of the stack to be stacked is obtained as follows:

[0019] λ=[P-γ2,P+γ1],

[0020] Wherein, λ is the stacking position interval of the stacked electrodes to be stacked, and P is the reference position.

[0021] In S4, the effects of the assembly deviation of the battery stack to be stacked, the deviation configuration of the battery stack to be stacked and the stacking position interval of the battery stack to be stacked on the straightness of the battery stack edge are described; based on the description results, the stacking position interval of the battery stack to be stacked is used as a constraint condition, and the minimum straightness of the battery stack edge is used as the goal, to obtain the optimized position strategy of the battery stack to be stacked.

[0022] According to another aspect of the present invention, there is provided a device for stacking hydrogen fuel cell stack modules, including a stack, a stack assembly platform, a stacked stack, a stack to be stacked, stack components, an optical detection module, and a data processing and display module;

[0023] Among them, the battery stack components include sealing rubber, membrane electrode assembly and bipolar plate; in the stacking process, the battery stack components are stacked layer by layer, and stacked according to the assembly accuracy requirements of the battery stack components to obtain the battery stack to be stacked;

[0024] The battery stack is placed on a battery stack assembly platform, and the optical detection module is arranged on the side of the battery stack and connected to the data processing and display module.

[0025] According to a third aspect of the present invention, there is provided an electronic device, comprising a memory and a processor, wherein a computer program is stored in the memory, and the method described above is implemented when the processor executes the program.

[0026] According to a fourth aspect of the present invention, there is provided a computer-readable storage medium having a computer program stored thereon, wherein the program implements the method described when executed by a processor.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] (1) Improving the assembly accuracy of hydrogen fuel cell stacks: During the stacking process, high-precision optical scanning equipment is used to scan the edges of the stack modules to obtain data such as the number of stacked layers, overall geometric dimensions, and assembly position coordinates of each part. The assembly deviation of the stack module is then calculated, and the feasible stacking position range is calculated based on the stack deviation limit tolerance range, which effectively reduces error accumulation and ensures that each stack module can be accurately controlled within the allowable deviation range during stacking, thereby significantly improving the overall assembly accuracy of the hydrogen fuel cell stack.

[0029] (2) Optimize the stacking position of the fuel cell modules to improve assembly quality and efficiency: By analyzing the impact of the assembly deviation, deviation configuration and stacking position of the fuel cell modules on the accuracy of the geometric features of the fuel cell edge, the stacking position interval is used as a constraint condition and the optimal accuracy of the geometric features of the fuel cell edge is used as the goal. The optimal stacking position of each fuel cell module is obtained through an optimization algorithm. This optimization strategy not only improves the assembly quality of the fuel cell modules, but also improves the assembly efficiency by reducing the number of rework and adjustments.

[0030] (3) Realize automated and intelligent stacking to meet production line requirements: The optical detection module is connected to the data processing and display module to collect and process the stacking position data of the battery stack module in real time, calculate the assembly deviation and optimize the stacking position. This automated and intelligent stacking method greatly reduces the reliance on manual operation and reduces the errors caused by human factors, while also saving labor costs. In addition, the data processing and display module records and stores the overall stacking number and assembly deviation of the battery stack, which can also provide reliable data support for subsequent quality traceability and continuous improvement. Each battery stack module is treated as an independent unit. On the production line, not only can the assembly accuracy of the battery stack module be guaranteed, but the stacking position between the battery stack modules can also be dynamically adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A flow chart of a method for stacking modules of a hydrogen fuel cell stack;

[0032] Figure 2 It is a schematic diagram of the measurement plane projection of the stack module assembly deviation;

[0033] Figure 3 It is a schematic diagram of the measurement plane projection of the stack module stacking position interval;

[0034] Figure 4 Schematic diagram of the measurement plane projection for optimizing the stacking position of the battery module;

[0035] Figure 5 The overall schematic diagram of the stack assembly;

[0036] Figure 6 This is a structural diagram of the device for stacking hydrogen fuel cell stack modules.

[0037] Explanation of the numbers in the figure: 1. Battery stack; 101. Battery stack assembly platform; 102. Stacked battery stack; 103. Battery stack to be stacked; 104. Sealing rubber; 105. Membrane electrode assembly; 106. Bipolar plate; 2. Optical detection module; 3. Data processing and display module. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0039] In order to improve the overall accuracy of the battery stack, the stacking position of the battery stack module affects the overall accuracy of the battery stack. It is an optimal method to divide the battery stack into multiple small battery stack modules and then stack them. Each battery stack module contains a certain number of hydrogen fuel cell monomers. During stacking, the battery stack modules need to be stacked within a certain position range to ensure the overall assembly accuracy of the battery stack. The specific stacking position of the battery stack module affects the overall assembly accuracy of the battery stack. In order to minimize the impact of the assembly deviation of the battery stack module on the overall battery stack, it is necessary to optimize the stacking position and stacking order of the battery stack modules to improve the overall assembly quality and consistency of the battery stack.

[0040] like Figure 1 As shown, a method for stacking hydrogen fuel cell stack modules is provided, and the specific steps include:

[0041] S1. Use the optical detection module 2 to scan the edge of the stack module to be stacked, and obtain the assembly position data of each component inside the stack module to be stacked, including the number of stacking layers, the overall geometric dimensions, and the assembly position coordinates of the components in each stack module to be stacked;

[0042] S2. Obtaining deviation data and deviation configuration of the to-be-stacked battery stack 103 according to the stacking position data;

[0043] S3, calculating the feasible stacking position interval of the to-be-stacked battery stack 103 according to the deviation data, deviation configuration and battery stack deviation limit tolerance interval constraint of the to-be-stacked battery stack 103;

[0044] S4, obtaining an optimized position strategy for the battery stack 103 to be stacked according to the feasible stacking position interval, and stacking the battery stack 103 to be stacked according to the optimized position strategy;

[0045] S5. When the total number of stacked layers on the battery stack assembly platform 101 reaches a preset target value, the stacking is stopped, and the total number of stacked layers and assembly deviation of the battery stack are stored in the data processing and display module 3.

[0046] The edge of the battery stack in S1 is the edge of the battery stack module to be stacked parallel to the stacking direction.

[0047] like Figure 2 As shown, in S2, the deviation between the assembly position coordinates of each component and the corresponding reference coordinates is calculated to obtain the deviation data of each component. The assembly deviation of the stack 103 to be stacked is calculated based on the deviation data of each component, and the deviation configuration of the stack 103 to be stacked is analyzed, and the deviation configuration includes C-shape, S-shape, and wavy shape.

[0048] like Figure 3 As shown, in S3, according to the stack deviation limit tolerance interval and the assembly deviation of the stack 103 to be stacked, the expression of the stacking feasible position variation range is obtained as follows:

[0049] γ=δ-ε1=γ1+γ2,

[0050] Among them, γ is the range of feasible stacking position variation, δ is the stack deviation limit tolerance interval, ε1 is the assembly deviation of the stack to be stacked, γ1 is the distance from the left end point of ε1 to the left end point of δ, and γ2 is the distance from the right end point of ε1 to the right end point of δ.

[0051] Taking the bottom layer of the stack to be stacked as the reference position, according to the range of the feasible stacking position, the expression of the feasible stacking position interval of the stack to be stacked is obtained as follows:

[0052] λ=[P-γ2,P+γ1],

[0053] Wherein, λ is the stacking position interval of the battery stack 103 to be stacked, and P is the reference position.

[0054] like Figure 4 As shown, in S4, the effects of the assembly deviation of the stack 103 to be stacked, the deviation configuration of the stack 103 to be stacked, and the stacking position interval of the stack 103 to be stacked on the stack edge straightness are described; according to the description results, the stacking position interval of the stack 103 to be stacked is used as a constraint condition, and the minimum stack edge straightness is used as the goal to obtain the optimal position strategy of the stack 103 to be stacked. Figure 5 The figure shows the overall schematic diagram of the stack assembly.

[0055] like Figure 6 As shown, a device for stacking hydrogen fuel cell stack modules includes a stack 1, a stack assembly platform 101, a stacked stack 102, a stack to be stacked 103, stack components, an optical detection module 2, and a data processing and display module 3; wherein, the stack components include a sealing rubber 104, a membrane electrode assembly 105, and a bipolar plate 106; in the stacking process, the stack components are stacked layer by layer, and stacked according to the assembly accuracy requirements of the stack components to obtain a stack to be stacked 103; the stack 1 is placed on the stack assembly platform 101, and the optical detection module 2 is arranged on the side of the stack 1 and connected to the data processing and display module 3. On the production line, i stack modular stacking stations are set to complete the stacking and stacking of stack components. At the stacking station, the stack is stacked until the number of layers reaches a preset value. According to the specific conditions of the production line, multiple stacking stations and stacking stations at different positions can be set.

[0056] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the described module can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0057] The electronic device of the present invention includes a central processing unit (CPU), which can perform various appropriate actions and processes according to computer program instructions stored in a read-only memory (ROM) or loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for device operation can also be stored. The CPU, ROM and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0058] A plurality of components in the device are connected to the I / O interface, including: an input unit, such as a keyboard, a mouse, etc.; an output unit, such as various types of displays, speakers, etc.; a storage unit, such as a disk, an optical disk, etc.; and a communication unit, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit allows the device to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks. The processing unit performs the various methods and processes described above, such as the method of the present invention. For example, in some embodiments, the method of the present invention may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program may be loaded and / or installed on the device via a ROM and / or a communication unit. When the computer program is loaded into the RAM and executed by the CPU, one or more steps of the method of the present invention described above may be performed. Alternatively, in other embodiments, the CPU may be configured to perform the method of the present invention in any other appropriate manner (e.g., by means of firmware).

[0059] The functions described above herein may be performed at least in part by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), and the like.

[0060] The program code for implementing the method of the present invention can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code can be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

[0061] In the context of the present invention, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0062] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for stacking hydrogen fuel cell stack modules, characterized in that: The specific steps include: S1. Using an optical detection module (2), scanning the edge of the battery stack module to be stacked, and obtaining assembly position data of each component inside the battery stack module to be stacked, including the number of stacking layers, overall geometric dimensions, and assembly position coordinates of components in each battery stack to be stacked; S2. Obtaining deviation data and deviation configuration of the battery stack (103) to be stacked according to the assembly position data; S3, calculating a feasible stacking position interval of the battery stack (103) to be stacked according to the deviation data, deviation configuration and battery stack deviation limit tolerance interval constraint of the battery stack (103) to be stacked; S4, obtaining an optimized position strategy for the battery stack (103) to be stacked according to the feasible stacking position interval, and stacking the battery stack (103) to be stacked according to the optimized position strategy; S5. When the total number of stacked layers on the battery stack assembly platform (101) reaches a preset target value, the stacking is stopped, and the total number of stacked layers and assembly deviation of the battery stack are stored in the data processing and display module (3).

2. A method for stacking hydrogen fuel cell stack modules according to claim 1, characterized in that: The edge of the battery stack in S1 is the edge of the battery stack module to be stacked parallel to the stacking direction.

3. A hydrogen fuel cell stack module stacking method according to claim 1, characterized in that: In S2, the deviation between the assembly position coordinates of each component and the corresponding reference coordinates is calculated to obtain the deviation data of each component.

4. A method for stacking hydrogen fuel cell stack modules according to claim 3, characterized in that: The assembly deviation of the stack (103) to be stacked is calculated based on the deviation data of each component, and the deviation configuration of the stack (103) to be stacked is analyzed.

5. A hydrogen fuel cell stack module stacking method according to claim 1, characterized in that: In S3, according to the stack deviation limit tolerance range and the assembly deviation of the stack (103) to be stacked, the expression of the stacking feasible position variation range is obtained as follows: γ=δ-ε1=γ1+γ2, Among them, γ is the range of variation of the feasible stacking position, δ is the tolerance range of the stack deviation limit, ε1 is the assembly deviation of the stack (103) to be stacked, γ1 is the distance from the left end point of ε1 to the left end point of δ, and γ2 is the distance from the right end point of ε1 to the right end point of δ.

6. A hydrogen fuel cell stack module stacking method according to claim 5, characterized in that: Taking the bottommost stack (103) to be stacked as the reference position, according to the variation range of the feasible stacking position, the expression of the feasible stacking position interval of the stack (103) to be stacked is obtained as follows: λ=[P-γ2,P+γ1], Wherein, λ is the stacking position interval of the battery stack (103) to be stacked, and P is the reference position.

7. A hydrogen fuel cell stack module stacking method according to claim 1, characterized in that: In the S4, the effects of the assembly deviation of the battery stack (103) to be stacked, the deviation configuration of the battery stack (103) to be stacked and the stacking position interval of the battery stack (103) to be stacked on the straightness of the battery stack edge are described; based on the description results, the stacking position interval of the battery stack (103) to be stacked is used as a constraint condition, and the minimum straightness of the battery stack edge is used as a goal to obtain an optimized position strategy for the battery stack (103) to be stacked.

8. A device for the hydrogen fuel cell stack module stacking method according to any one of claims 1 to 7, characterized in that: It comprises a battery stack (1), a battery stack assembly platform (101), a stacked battery stack (102), a battery stack to be stacked (103), battery stack components, an optical detection module (2), and a data processing and display module (3); The battery stack components include sealing rubber (104), membrane electrode assembly (105) and bipolar plate (106); in the stacking process, the battery stack components are stacked layer by layer, and stacked according to the assembly accuracy requirements of the battery stack components to obtain a battery stack to be stacked (103); The battery stack (1) is placed on a battery stack assembly platform (101), and the optical detection module (2) is arranged on the side of the battery stack (1) and connected to the data processing and display module (3).

9. An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, wherein: When the processor executes the program, the method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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