A method, apparatus, device, and medium for stacking hydrogen fuel cell stack modules

Abstract

The present application relates to a kind of hydrogen fuel cell stack module stacking method, device, equipment and medium, using optical detection module, scan the edge of the stack module to be stacked, and the stack module to be stacked obtains the assembly position data of each component in the stack module to be stacked;According to the assembly position data, the deviation data and deviation configuration of the stack to be stacked are obtained;According to the deviation data, deviation configuration and stack deviation limit interval constraint of the stack to be stacked, the stacking feasible position interval of the stack to be stacked is calculated, so that the optimization position strategy of the stack to be stacked is obtained, and the stack to be stacked is stacked according to optimization position strategy.When the total stack number on the stack assembly platform reaches the preset target value, stop stacking, and the total stack number and assembly deviation of the stack are stored in data processing display module.Compared with prior art, the present application has the advantages of high precision, strong adaptability and high efficiency.

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 highly efficient and clean energy devices with the advantages of high efficiency, high power density, rapid low-temperature startup, and low pollution. They have good application prospects in many fields such as transportation, aerospace, etc. Hydrogen fuel cell cells are composed of bipolar plates, sealing rubber, and membrane electrode assemblies. Usually, the output voltage of hydrogen fuel cell cells is around 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 cells. During the stack assembly process, hundreds of hydrogen fuel cell cells are stacked in series according to the actual current, voltage, and power requirements, and the internal structure is tightly packaged together using end plates and fasteners to form a hierarchical stack structure.

[0003] The stack structure of hundreds of single cells in series places very high demands on the assembly process. The high-power stack assembled with large-area, thin-thick, and lightweight bipolar plates, sealant layers, and membrane electrode assemblies has an even more urgent need to achieve high-quality and high-efficiency assembly within a micron-level space. However, during the assembly process of the stack, errors in the shape, size, assembly, and slippage of parts under compression loads are unavoidable. With hundreds of layers of components stacked together, deviations in all directions of the stack are continuously transmitted and accumulated, causing the stack deviation to exceed the assembly accuracy requirements, resulting in unqualified assembly quality, and directly causing the stack performance to degrade and the sealing structure to fail. Therefore, how to reduce the assembly deviation of the stack modules and improve the overall assembly quality and consistency of the 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 deviation, calculating stack module stacking position interval, and optimizing stack module stacking position, the error accumulation is reduced, the assembly deviation of the stack module is ensured to be within the assembly accuracy requirement range, 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, the specific steps comprising:

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

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

[0009] S3. Calculating a feasible stacking position interval of the stack to be stacked based on 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 stacks to be stacked based on the feasible stacking position intervals, and stacking the stacks to be stacked based on the optimized position strategy;

[0011] S5. When the total number of stacked layers on the stack assembly platform reaches a preset target value, the stacking is stopped, and the total number of stacked layers and assembly deviation of the 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 modules to be stacked that is parallel to the stacking direction.

[0013] In the above-mentioned 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 stack to be stacked is calculated based on the deviation data of each component, and the deviation configuration of the stack to be stacked is analyzed.

[0015] In S3, based on the stack deviation limit tolerance range and the assembly deviation of the stack to be stacked, the expression for the variation range of the feasible stacking position 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 maximum tolerance interval of the stack deviation, 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 bottommost stack as the reference position, according to the range of feasible stacking positions, 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 batteries to be stacked, and P is the reference position.

[0021] In said S4, the influence 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 is described; according to 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, a device for stacking hydrogen fuel cell stack modules is provided, comprising a stack, a stack assembly platform, stacked stacks, stacks to be stacked, stack components, an optical detection module, and a data processing and display module.

[0023] Among them, the fuel cell stack components include sealing rubber, membrane electrode assembly and bipolar plates; in the stacking process, the fuel cell stack components are stacked layer by layer, and stacked according to the assembly accuracy requirements of the fuel cell stack components to obtain the fuel cell 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, an electronic device is provided, comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the method when executing the program.

[0026] According to a fourth aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the method described above is implemented.

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

[0028] (1) Improve 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 stacking 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 stack modules to improve assembly quality and efficiency: By analyzing the influence of the stack module assembly deviation, deviation configuration and stacking position on the accuracy of the stack edge geometric features, with the stacking position range as the constraint condition and the optimal accuracy of the stack edge geometric features as the goal, the optimal stacking position of each stack module is obtained through the optimization algorithm. This optimization strategy not only improves the assembly quality of the stack 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: By connecting the optical detection module with the data processing and display module, the stacking position data of the battery stack module can be collected and processed in real time, the assembly deviation can be calculated, and the stacking position can be optimized. This automated and intelligent stacking method greatly reduces the reliance on manual operation, reduces the errors caused by human factors, and also saves labor costs. In addition, the data processing and display module records and stores the overall stacking layers and assembly deviations 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 hydrogen fuel cell stack modules;

[0032] Figure 2 Schematic diagram of the measurement plane projection of the stack module assembly deviation;

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

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

[0035] Figure 5 This is 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. Fuel cell stack; 101. Fuel cell assembly platform; 102. Stacked fuel cell stack; 103. Fuel cell 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 clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0039] In order to improve the overall accuracy of the stack, the stack is divided into multiple small modules and then stacked. Each module contains a certain number of hydrogen fuel cell units. During the stacking process, the stack modules need to be stacked within a certain position range to ensure the overall assembly accuracy of the stack. The specific stacking position of the stack modules affects the overall assembly accuracy of the stack. In order to minimize the impact of the assembly deviation of the stack modules on the overall stack, it is necessary to optimize the stacking position and stacking order of the stack modules to improve the overall assembly quality and consistency of the 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 optical inspection module 2 to scan the edge of the stack module to be stacked to obtain assembly position data of each component inside the stack module to be stacked, including the number of stacking layers, overall geometric dimensions, and assembly position coordinates of components in each stack module to be stacked;

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

[0043] S3. Calculating a feasible stacking position interval of the to-be-stacked fuel cell stack 103 based on the deviation data, deviation configuration, and fuel cell stack deviation limit tolerance interval constraint of the to-be-stacked fuel cell stack 103;

[0044] S4. Obtaining an optimized position strategy for the stack 103 to be stacked based on the feasible stacking position interval, and stacking the stack 103 to be stacked based on the optimized position strategy;

[0045] S5. When the total number of stacked layers on the 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 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 deviation data for each component. Based on the deviation data of each component, the assembly deviation of the stack 103 to be stacked is calculated, and the deviation configuration of the stack 103 to be stacked is analyzed. Deviation configurations include C-shaped, S-shaped, and wavy shapes.

[0048] like Figure 3 As shown, in S3, based on 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:

[0049] γ=δ-ε1=γ1+γ2,

[0050] Among them, γ is the range of feasible stacking position variation, δ is the maximum tolerance interval of the stack deviation, 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 bottommost stack as the reference position, according to the range of feasible stacking positions, 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; based on 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 for the stack 103 to be stacked. Figure 5 The figure shows the overall schematic diagram of the stack assembly.

[0055] like Figure 6 The figure shows a device for stacking hydrogen fuel cell stack modules, including 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. The stack components include a sealing rubber 104, a membrane electrode assembly 105, and a bipolar plate 106. During 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 the stack 103 to be stacked. The stack 1 is placed on the stack assembly platform 101, and the optical detection module 2 is set on the side of the stack 1 and connected to the data processing and display module 3. On the production line, i modular stack stacking stations are set up to complete the stacking and stacking of the stack components. At the stacking station, the stack is stacked until the number of layers reaches a preset value. Depending on the specific conditions of the production line, multiple stacking stations and stacking stations can be set up in different locations.

[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] Multiple components in the device are connected to the I / O interface, including: input units, such as a keyboard, mouse, etc.; output units, such as various types of displays, speakers, etc.; storage units, such as magnetic disks, optical disks, etc.; and communication units, such as network cards, modems, wireless communication transceivers, etc. The communication unit allows the device to exchange information / data with other devices via computer networks such as the Internet and / or various telecommunications 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 can be implemented as a computer software program that is tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program can be loaded and / or installed onto the device via ROM and / or the communication unit. When the computer program is loaded into RAM and executed by the CPU, one or more steps of the method of the present invention described above can be performed. Alternatively, in other embodiments, the CPU can be configured to perform the method of the present invention by any other suitable means (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, and 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 chip (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. Such program code 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 when the program code is executed by the processor or controller, the functions / operations specified in the flow chart and / or block diagram are implemented. The program code can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

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

[0062] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection 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) 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; 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 based on the deviation data, deviation configuration, and battery stack deviation limit tolerance interval constraint of the battery stack (103) to be stacked; S4. Based on the feasible stacking position interval, an optimized position strategy of the battery stack (103) to be stacked is obtained, and the battery stack (103) to be stacked is stacked according to the optimized position strategy; the influence of the assembly deviation of the battery stack (103), the deviation configuration of the battery stack (103) to be stacked, and the stacking position interval of the battery stack (103) on the straightness of the battery stack edge is described; based on the description result, the optimized position strategy of the battery stack (103) to be stacked is obtained with the stacking position interval of the battery stack (103) as a constraint condition and the minimum straightness of the battery stack edge as a goal; 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 hydrogen fuel cell stack module stacking method according to claim 1, characterized in that: The edge of the battery stack in S1 is the edge of the battery stack modules to be stacked that is parallel to the stacking direction.

3. A hydrogen fuel cell stack module stacking method according to claim 1, characterized in that: In the above-mentioned 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 hydrogen fuel cell stack module stacking method according to claim 3, characterized in that: The assembly deviation of the to-be-stacked battery stack (103) is calculated based on the deviation data of each component, and the deviation configuration of the to-be-stacked battery stack (103) is analyzed.

5. The method for stacking hydrogen fuel cell modules according to claim 1, wherein: In said S3, based on the stack deviation limit tolerance range and the assembly deviation of the stack (103) to be stacked, the expression for the stacking feasible position variation range is obtained as follows: ， in, γ is the range of possible stacking positions, δ is the stack deviation limit tolerance range, ε 1 is the assembly deviation of the stack (103) to be stacked, γ 1 for ε 1 Left endpoint to δ The distance from the left endpoint, γ 2 for ε 1 Right endpoint to δ The distance to the right endpoint.

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

7. A device for the hydrogen fuel cell stack module stacking method according to any one of claims 1 to 6, 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 the battery stack (103) to be stacked; The battery stack (1) is placed on a battery stack assembly platform (101), and the optical detection module (2) is arranged on a side of the battery stack (1) and connected to the data processing and display module (3).

8. 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 6 is implemented.

9. 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 6 is implemented.

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