Fuel cell MEA automatic lamination control method and system thereof

Abstract

The invention belongs to the technical field of fuel cell manufacturing, and particularly relates to a fuel cell MEA automatic lamination control method and system, the control method comprises the following steps: S1, respectively placing a first material, a second material and a third material on corresponding material areas on a workbench; s2, a first Z-axis driving arm drives a suction cup to suck the first material and place the first material on a dispensing platform, and a second Z-axis driving arm drives a dispensing mechanism to glue the upper surface of the first material; s3, a first Z-axis driving arm drives a suction cup to suck a second material and place the second material on the first material, so that the second material and the first material are subjected to press-fit forming, and a second Z-axis driving arm drives a dispensing mechanism to glue the upper surface of the second material; s4, a first Z-axis driving arm drives a suction cup to suck the third material and place the third material on the second material, so that the third material and the second material are subjected to press-fit forming, and an MEA finished product is formed; and S5, the first Z-axis driving arm drives the suction cup to suck the MEA finished product and transfer the MEA finished product to a finished product area on the platform.

Description

Technical Field

[0001] The present invention belongs to the technical field of fuel cell manufacturing, and in particular relates to a fuel cell MEA automatic lamination control method and system. Background Art

[0002] A fuel cell is a type of system that directly converts the chemical energy of fuel into electrical energy. Hydrogen fuel cells have the advantages of high fuel energy conversion rate, low noise and zero emissions. They can be widely used in transportation vehicles such as automobiles, airplanes, trains, and fixed power stations.

[0003] Since fuel cells have been used in manned spaceflight, underwater submarines, and distributed power stations, they have been the focus of governments and enterprises around the world. In the future, when the proportion of coal-fired power is relatively low, the entire upstream power structure will become cleaner due to the increase in the scale of renewable energy technologies such as wind and solar energy. Compared with the traditional combustion technology currently used in many power plants and passenger cars, fuel cells have several advantages: first, the power generation efficiency is as high as 50% to 60%. If it can be combined to form a circulating power generation system, its power generation efficiency can be as high as 70% or more; second, compared with traditional thermal power generation, fuel cells have a lower degree of environmental pollution; third, because fuel cells have fewer internal components, they will not generate much noise during operation, and the general noise is 50dB to 70dB. Proton exchange membrane is a polymer electrolyte membrane that plays an important role in conducting protons and isolating cathode and anode reactants in fuel cells. It is also used as a catalyst support when preparing CCM membrane electrodes. It is the core component of fuel cells and a key component that determines the performance, life, and cost of fuel cells.

[0004] The membrane electrode assembly (MEA) is a combination of membrane, catalyst layer and diffusion layer, and is also one of the core components of fuel cells. In practical applications, the proton exchange membrane is required to have high proton conductivity and good chemical and mechanical stability. The existing technology usually adopts manual placement and glue bonding, which cannot guarantee the quality of MEA bonding and product consistency. Therefore, the MEA has particularly high requirements for CCM membrane bonding during the production and assembly process. The control accuracy and bonding control method of bonding, as well as the control of the amount of glue used for bonding are very accurate, so as to ensure the production of qualified products in the MEA bonding process, ensure that the subsequent MEA packaging size is more accurate and correct, and improve product quality.

[0005] Based on this, in the process of producing fuel cells, it is necessary to improve the existing technology to overcome the shortcomings in practical applications. Summary of the invention

[0006] Based on the above-mentioned shortcomings and deficiencies in the prior art, one of the objects of the present invention is to at least solve one or more of the above-mentioned problems in the prior art. In other words, one of the objects of the present invention is to provide a fuel cell MEA automatic bonding control method and system that meets one or more of the above-mentioned needs.

[0007] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0008] The present invention provides a fuel cell MEA automatic lamination control method, comprising the following steps:

[0009] S1. Place the first material, the second material and the third material in the corresponding material areas on the workbench respectively;

[0010] S2, driving the suction cup to suck the first material and place it on the glue dispensing platform through the first Z-axis driving arm, and driving the glue dispensing mechanism to apply glue to the upper surface of the first material through the second Z-axis driving arm;

[0011] S3, driving the suction cup to suck the second material and place it on the first material through the first Z-axis driving arm to press the second material and the first material into shape, and driving the glue dispensing mechanism to apply glue to the upper surface of the second material through the second Z-axis driving arm;

[0012] S4, driving the suction cup to suck the third material and place it on the second material through the first Z-axis driving arm, so as to press the third material and the second material into a mold to form an MEA finished product;

[0013] S5. The first Z-axis driving arm drives the suction cup to absorb the finished MEA and transfer it to the finished product area on the platform to complete the automatic bonding of the MEA.

[0014] As a preferred solution, S1 includes:

[0015] S11, placing the first material, the second material and the third material in the material area of ​​the workbench in sequence;

[0016] S12. Performing vacuum adsorption on the first material, the second material and the third material by using a vacuum pump to fix the materials.

[0017] As a preferred solution, S1 includes:

[0018] S11, placing the first material, the second material and the third material in the material area of ​​the workbench in sequence;

[0019] S12. Performing vacuum adsorption on the first material, the second material and the third material by using a vacuum pump to fix the materials.

[0020] As a preferred solution, S2 includes:

[0021] S21, by moving the X-axis driving module and the Y-axis driving module, the first Z-axis driving arm is linked to move to above the first material in the material area;

[0022] S22, driving the suction cup to descend by the first Z-axis driving arm to absorb the first material and transfer it to the dispensing platform;

[0023] S23, driving the glue dispensing mechanism through the second Z-axis driving arm to apply glue to the first material on the glue dispensing platform along a preset trajectory.

[0024] As a preferred solution, S3 includes:

[0025] S31, the X-axis driving module and the Y-axis driving module move to link the first Z-axis driving arm to move above the second material in the material area;

[0026] S32, driving the suction cup to descend by the first Z-axis driving arm to absorb the second material and transfer it to the dispensing platform, and pressing the second material and the first material by the suction cup to form the second material and the first material;

[0027] S33, driving the glue dispensing mechanism through the second Z-axis driving arm to apply glue to the second material on the glue dispensing platform along a preset trajectory.

[0028] As a preferred solution, the S32 includes:

[0029] The time for pressing the second material and the first material by the suction cup is 1 to 60 seconds, and the pressing force applied is 1 to 10N.

[0030] As a preferred solution, S4 includes:

[0031] S41, the X-axis driving module and the Y-axis driving module move to link the first Z-axis driving arm to move above the third material in the material area;

[0032] S42, driving the suction cup to descend through the first Z-axis driving arm to absorb the third material and transfer it to the dispensing platform, and pressing the third material and the second material through the suction cup to form the third material and the second material to form an MEA finished product.

[0033] As a preferred solution, S5 includes:

[0034] The X-axis driving module and the Y-axis driving module move to link the first Z-axis driving arm to move to the dispensing platform, and the MEA finished product is sucked by the suction cup and transferred to the finished product area to complete the automatic bonding of the MEA.

[0035] As a preferred solution, the first material is configured as anode carbon paper, the second material is configured as CCM membrane, and the third material is configured as cathode carbon paper.

[0036] As a preferred solution, the glue dispensing mechanism has a glue dispensing speed of 1 to 15 g / sec.

[0037] The present invention also provides a fuel cell MEA automatic bonding control system, which is applied to the control method described in any of the above schemes, comprising:

[0038] A workbench, on which a first material area, a second material area, a third material area, a dispensing platform and a finished product area are arranged;

[0039] A transfer mechanism, including an X-axis drive module, a Y-axis drive module, a first Z-axis drive arm and a suction cup, for transferring a first material, a second material, a third material and a finished product;

[0040] The glue dispensing mechanism comprises a second Z-axis driving arm and a glue dispensing unit, wherein the second Z-axis driving arm is used to drive the glue dispensing unit to move upward and downward so as to apply glue to the first material and the second material;

[0041] The vacuum pump is connected to the suction cup, the first material area, the second material area and the third material area and is used for vacuum adsorption to fix the material.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] The present invention provides a fuel cell MEA automatic lamination control method, which can fully laminarize and mold anode carbon paper, CCM membrane and cathode carbon paper into a finished MEA product. The entire control process is completed automatically, and precise control can be achieved without multiple manual interventions, thereby reducing the time for frequent manual adjustment of various parameters, saving labor costs, and improving work efficiency. By precisely controlling the lamination pressure, it can be ensured that the anode carbon paper, CCM membrane and cathode carbon paper are tightly laminarized. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a flow chart of a method for controlling the automatic bonding of a battery MEA according to an embodiment of the present invention;

[0045] Figure 2 2 is a schematic diagram of the structure of a fuel cell MEA automatic lamination control system according to an embodiment of the present invention;

[0046] Figure 3 2 is a schematic structural diagram of another perspective of the fuel cell MEA automatic lamination control system according to an embodiment of the present invention;

[0047] In the figure: 1 workbench, 11 first material area, 12 second material area, 13 third material area, 14 glue dispensing platform, 15 finished product area, 2 transfer mechanism, 21 X-axis drive module, 22 Y-axis drive module, 23 first Z-axis drive arm, 24 suction cup, 3 glue dispensing mechanism, 31 second Z-axis drive arm, 32 glue dispensing unit, 4 vacuum pump, 5 glue barrel. DETAILED DESCRIPTION

[0048] In order to more clearly illustrate the embodiments of the present invention, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other accompanying drawings and other implementation methods can be obtained based on these accompanying drawings without creative work.

[0049] According to some embodiments of the present application, Figure 1 As shown, a fuel cell MEA automatic lamination control method is provided, comprising the following steps:

[0050] S1. Place the first material, the second material and the third material in corresponding material areas on the workbench respectively.

[0051] Specifically, the S1 includes:

[0052] S11, placing the first material, the second material and the third material in the material area of ​​the workbench in sequence, and detecting whether the materials are in place by using a photoelectric sensor to ensure the neatness of the material placement and the consistency of the positioning. The photoelectric sensor can be replaced by a camera visual detection component to ensure higher detection accuracy.

[0053] S12, vacuum adsorbing the first material, the second material and the third material by a vacuum pump to fix the materials. In order to ensure stable fixation of the materials, the adsorption pressure provided by the vacuum pump is 0-0.25 MPa, which can be set according to actual needs.

[0054] Before the S1, it also includes:

[0055] The X-axis drive module, the Y-axis drive module, the first Z-axis drive arm and the second Z-axis drive arm are calibrated at zero position. At the same time, glue in the glue barrel is added to the set capacity and the vacuum pump is started.

[0056] S2. The first Z-axis driving arm drives the suction cup to suck the first material and place it on the glue dispensing platform, and the second Z-axis driving arm drives the glue dispensing mechanism to apply glue to the upper surface of the first material.

[0057] Specifically, the S2 includes:

[0058] S21, the X-axis driving module and the Y-axis driving module move to link the first Z-axis driving arm to move above the first material in the material area.

[0059] S22. The suction cup is driven down by the first Z-axis driving arm to absorb the first material and transfer it to the dispensing platform. At the same time, a photoelectric sensor is used to detect whether the first material is taken away to avoid empty material transfer and improve material transfer efficiency.

[0060] S23, driving the dispensing mechanism to apply glue to the first material on the dispensing platform along a preset track through the second Z-axis driving arm. The preset track can be set to a regular shape such as a rectangle or a circle, or can be set to an irregular shape formed along the border of the first material, both of which are intended to ensure that the first material is pasted and formed with the second material above, and to avoid overflow during lamination, which is beneficial to improving dispensing consistency, reducing material waste, and increasing production capacity and yield.

[0061] Furthermore, the glue dispensing mechanism has a glue dispensing speed of 1 to 15 g / sec to ensure that the glue can remain in a liquid state and be coated on the surface of the first material.

[0062] S3. The first Z-axis driving arm drives the suction cup to suck the second material and place it on the first material to press the second material and the first material into shape, and the second Z-axis driving arm drives the glue dispensing mechanism to apply glue to the upper surface of the second material.

[0063] Specifically, S3 includes:

[0064] S31, the X-axis driving module and the Y-axis driving module move to link the first Z-axis driving arm to move above the second material in the material area.

[0065] S32, driving the suction cup to descend through the first Z-axis driving arm to absorb the second material and transfer it to the dispensing platform, and pressing the second material and the first material through the suction cup to form the second material and the first material.

[0066] Further, the S32 includes:

[0067] The time for pressing the second material and the first material by the suction cup is 1 to 60 seconds, and the pressing force applied is 1 to 10N, which can ensure that the second material and the first material are fully fitted together and enhance the reliability of the fitting.

[0068] S33, driving the glue dispensing mechanism through the second Z-axis driving arm to apply glue to the second material on the glue dispensing platform along a preset trajectory.

[0069] Furthermore, the glue dispensing mechanism has a glue dispensing speed of 1 to 15 g / sec to ensure that the glue can remain in a liquid state and be coated on the surface of the second material.

[0070] S4. The first Z-axis driving arm drives the suction cup to suck the third material and place it on the second material, so as to press the third material and the second material into a mold to form an MEA finished product.

[0071] Specifically, the S4 includes:

[0072] S41, the X-axis driving module and the Y-axis driving module move to link the first Z-axis driving arm to move above the third material in the material area.

[0073] S42, driving the suction cup to descend through the first Z-axis driving arm to absorb the third material and transfer it to the dispensing platform, and pressing the third material and the second material through the suction cup to form the third material and the second material to form an MEA finished product.

[0074] Further, the S42 includes:

[0075] The time for pressing the third material and the second material by the suction cup is 1 to 60 seconds, and the pressing force applied is 1 to 10N.

[0076] S5. The first Z-axis driving arm drives the suction cup to absorb the finished MEA and transfer it to the finished product area on the platform to complete the automatic bonding of the MEA.

[0077] Specifically, the S5 includes:

[0078] The X-axis driving module and the Y-axis driving module move to link the first Z-axis driving arm to move to the dispensing platform, and the MEA finished product is sucked by the suction cup and transferred to the finished product area to complete the automatic bonding of the MEA.

[0079] According to an embodiment of the present application, the first material is configured as anode carbon paper, the second material is configured as CCM membrane, and the third material is configured as cathode carbon paper. The placement positions of the three can be replaced according to actual needs.

[0080] A fuel cell MEA automatic lamination control method of the present embodiment controls the real-time pressure of the suction cup on the first Z-axis drive arm when it is pressed down through PLC during the lamination process of the anode carbon paper, CCM membrane and cathode carbon paper to ensure stability during lamination. The entire control process is completed automatically without the need for multiple manual interventions, thus reducing the time for frequent manual adjustment of various parameters, saving labor costs, and improving work efficiency. By accurately controlling the lamination pressure, it can ensure that the anode carbon paper, CCM membrane and cathode carbon paper are tightly laminar.

[0081] According to some embodiments of the present application, Figures 2 to 3 As shown, a fuel cell MEA automatic bonding control system is also provided, which is applied to the above control method, including:

[0082] A workbench 1, on which a first material area 11, a second material area 12, a third material area 13, a dispensing platform 14 and a finished product area 15 are arranged;

[0083] The transfer mechanism 2 includes an X-axis drive module 21, a Y-axis drive module 22, a first Z-axis drive arm 23 and a suction cup 24, and is used to transfer the first material, the second material, the third material and the finished product;

[0084] The glue dispensing mechanism 3 includes a second Z-axis driving arm 31 and a glue dispensing unit 32. The second Z-axis driving arm 31 is used to drive the glue dispensing unit 32 to move up and down so as to apply glue to the first material and the second material.

[0085] The vacuum pump 4 is connected to the suction cup, the first material area, the second material area and the third material area and is used for vacuum adsorption to fix the material.

[0086] Furthermore, a glue barrel 5 is provided under the workbench 1, and a stirring motor of the glue barrel rotates at a speed of 15 r / min, so that the glue is fully blended and maintained in a liquid state.

[0087] The above description is only a detailed description of the preferred embodiments and principles of the present invention. For ordinary technicians in this field, according to the ideas provided by the present invention, there will be changes in the specific implementation methods, and these changes should also be regarded as the protection scope of the present invention.

Claims

1. A fuel cell MEA automatic lamination control method, characterized in that: The following steps are involved: S1. Place the first material, the second material and the third material in the corresponding material areas on the workbench respectively; S2, driving the suction cup to suck the first material and place it on the glue dispensing platform through the first Z-axis driving arm, and driving the glue dispensing mechanism to apply glue to the upper surface of the first material through the second Z-axis driving arm; S3, driving the suction cup to suck the second material and place it on the first material through the first Z-axis driving arm to press the second material and the first material into shape, and driving the glue dispensing mechanism to apply glue to the upper surface of the second material through the second Z-axis driving arm; S4, driving the suction cup to suck the third material and place it on the second material through the first Z-axis driving arm, so as to press the third material and the second material into a mold to form an MEA finished product; S5. The first Z-axis driving arm drives the suction cup to absorb the finished MEA and transfer it to the finished product area on the platform to complete the automatic bonding of the MEA.

2. A fuel cell MEA automatic lamination control method according to claim 1, characterized in that: The S1 includes: S11, placing the first material, the second material and the third material in the material area of ​​the workbench in sequence; S12. Performing vacuum adsorption on the first material, the second material and the third material by using a vacuum pump to fix the materials.

3. A fuel cell MEA automatic lamination control method according to claim 1, characterized in that: The S2 includes: S21, by moving the X-axis driving module and the Y-axis driving module, the first Z-axis driving arm is linked to move to above the first material in the material area; S22, driving the suction cup to descend by the first Z-axis driving arm to absorb the first material and transfer it to the dispensing platform; S23, driving the glue dispensing mechanism through the second Z-axis driving arm to apply glue to the first material on the glue dispensing platform along a preset trajectory.

4. A fuel cell MEA automatic lamination control method according to claim 1, characterized in that: The S3 includes: S31, the X-axis driving module and the Y-axis driving module move to link the first Z-axis driving arm to move above the second material in the material area; S32, driving the suction cup to descend by the first Z-axis driving arm to absorb the second material and transfer it to the dispensing platform, and pressing the second material and the first material by the suction cup to form the second material and the first material; S33, driving the glue dispensing mechanism through the second Z-axis driving arm to apply glue to the second material on the glue dispensing platform along a preset trajectory.

5. A fuel cell MEA automatic lamination control method according to claim 4, characterized in that: The S32 includes: The time for pressing the second material and the first material by the suction cup is 1 to 60 seconds, and the pressing force applied is 1 to 10N.

6. A fuel cell MEA automatic lamination control method according to claim 1, characterized in that: The S4 includes: S41, the X-axis driving module and the Y-axis driving module move to link the first Z-axis driving arm to move above the third material in the material area; S42, driving the suction cup to descend through the first Z-axis driving arm to absorb the third material and transfer it to the dispensing platform, and pressing the third material and the second material through the suction cup to form the third material and the second material to form an MEA finished product.

7. A fuel cell MEA automatic lamination control method according to claim 1, characterized in that: The S5 includes: The X-axis driving module and the Y-axis driving module move to link the first Z-axis driving arm to move to the dispensing platform, and the MEA finished product is sucked by the suction cup and transferred to the finished product area to complete the automatic bonding of the MEA.

8. A fuel cell MEA automatic lamination control method according to claim 1, characterized in that: The first material is configured as anode carbon paper, the second material is configured as CCM membrane, and the third material is configured as cathode carbon paper.

9. A fuel cell MEA automatic lamination control method according to claim 1, characterized in that: The glue dispensing mechanism has a glue dispensing speed of 1 to 15 g / sec.

10. A fuel cell MEA automatic lamination control system, characterized in that: The control method according to any one of claims 1 to 9 comprises: A workbench, on which a first material area, a second material area, a third material area, a dispensing platform and a finished product area are arranged; A transfer mechanism, including an X-axis drive module, a Y-axis drive module, a first Z-axis drive arm and a suction cup, for transferring a first material, a second material, a third material and a finished product; The glue dispensing mechanism comprises a second Z-axis driving arm and a glue dispensing unit, wherein the second Z-axis driving arm is used to drive the glue dispensing unit to move upward and downward so as to apply glue to the first material and the second material; The vacuum pump is connected to the suction cup, the first material area, the second material area and the third material area and is used for vacuum adsorption to fix the material.

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