Chemical deposition device for metal polar plate of fuel cell
By using a long strip deposition cylinder and multiple sets of rollers in the production of fuel cell metal electrode plates, a continuous protective coating is achieved, solving the problems of uneven coating thickness and adaptability of fixing devices, and improving the quality uniformity and coating effect of metal electrode plates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-03-31
AI Technical Summary
The coating thickness of existing fuel cell metal plates is uneven, and the fixing device has high requirements for clamping thin plates, which affects the coating effect and quality uniformity.
It adopts a long strip deposition cylinder, combined with multiple sets of rollers and a straightening cover plate to achieve continuous coating of protective layer. The metal sheet is conveyed by rollers to ensure coating uniformity, and a detachable straightening unit is used to adapt to metal coils of different widths.
It improves the uniformity of the coating, reduces the requirements for the fixing device, and ensures the consistency of the metal electrode plate quality and the coating effect.
Smart Images
Figure CN224062890U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fuel cell production, and more particularly, to a fuel cell metal plate chemical deposition device. BACKGROUND
[0002] Metal plate is an important component of fuel cell, and plays an important role in the quality of fuel cell. How to make high-quality and uniform quality fuel cell metal plate has become the pursuit of the industry.
[0003] The raw material of fuel cell metal plate is metal plate, which can be stainless steel, titanium alloy, aluminum alloy, nickel alloy, copper alloy, etc. The existing manufacturing process is to stamp, laser cut, plate protective layer, etch, weld and surface treat the metal plate to form a fuel cell metal plate.
[0004] In the process of plating the protective layer, the existing manufacturing process arranges the cut metal sheets one by one in the plating solution cylinder through the fixing device for a certain period of time and then takes them out in batches. In each batch, the position of each metal sheet in the plating solution cylinder is different. Because the concentration of the plating solution cylinder is different at different positions in the cylinder, if electroplating is performed, the current distribution is also different, resulting in uneven thickness of the plating layer of different batches or even different metal sheets in the same batch, thereby causing different quality of the subsequent metal plate. Moreover, because the thickness of the fuel cell metal plate is usually 0.1-0.3 mm, the fixing device needs to perform multi-point clamping to vertically hang the metal sheet, otherwise it is easy to curl, so the requirement for the fixing device is also high. The ordinary fixing device used for clamping thick plates is not suitable, and multi-point clamping seriously affects the plating effect.
[0005] Therefore, how to find a production device suitable for fuel cell metal plate has become the demand of the industry. SUMMARY
[0006] To solve the above problems, the utility model provides a fuel cell metal plate chemical deposition device, which aims to improve at least one problem mentioned in the background art.
[0007] A fuel cell metal plate chemical deposition device, the fuel cell metal plate chemical deposition device comprises a deposition cylinder body, the deposition cylinder body is a long strip-shaped cylinder body, first roller group, middle roller group area and second roller group are sequentially arranged between the front end and the rear end of the deposition cylinder body, the middle roller group area comprises first middle roller group, second middle roller group…Nth middle roller group, the first roller group, the first middle roller group, the Nth middle roller group and the second roller group are turning roller groups, the second middle roller group…N-1th middle roller group is a conveying roller, the middle roller group area is located below the liquid level line of the deposition cylinder body, the first roller group and the second roller group are located above the liquid level line of the deposition cylinder body, and N is an integer greater than 2.
[0008] Optionally, the first pressing roller group is arranged between the first roller group and the first intermediate roller group, and the second pressing roller group is arranged between the Nth intermediate roller group and the second roller group.
[0009] Optionally, N is 5-30.
[0010] Optionally, the top of the deposition cylinder is covered with a plurality of correction cover plates, the plurality of correction cover plates are arranged along the length direction of the deposition cylinder, and adjacent two roller groups in the intermediate roller group area correspond to a correction cover plate.
[0011] Optionally, the correction cover plate comprises a cover plate and two detachable correction units installed on the cover plate and facing the metal coil 7, the two correction units are symmetrically installed along the length direction center line of the correction cover plate, and each correction unit comprises a connecting strip-shaped plate, a plurality of correction strips are equidistantly arranged on the connecting strip-shaped plate along the length direction.
[0012] Optionally, at least two rows of first mounting holes are symmetrically arranged on the cover plate along the width direction and along the length direction center line of the correction cover plate, and second mounting holes are arranged on the connecting strip-shaped plate, the correction unit is installed on the cover plate through the first mounting hole points, and the first mounting holes are matched with the second mounting holes.
[0013] Optionally, each row of first mounting holes has two holes, and the second mounting holes have two holes.
[0014] Optionally, a handle is arranged on the cover plate.
[0015] Compared with the prior art, the beneficial effects of the present application are as follows:
[0016] The present application sets a long strip-shaped deposition cylinder, and the metal plate after stamping treatment without cutting is plated with a protective layer when passing through the long strip-shaped deposition cylinder, so that the uniformity of the plating layer can be improved under the condition that the plating solution remains unchanged. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0018] Figure 1 is a schematic structural view of the chemical deposition cylinder of the present application in a plan view;
[0019] Figure 2 is a schematic structural view of the chemical deposition cylinder of the present application without the correction cover plate;
[0020] Figure 3 is a cover plate structure schematic diagram of the utility model;
[0021] Figure 4 is a correction unit structure schematic diagram of the utility model;
[0022] Figure 5 is a fastener structure schematic diagram of the utility model.
[0023] Mark explanation: 1, deposit cylinder, 2, first roller group, 3, first intermediate roller group, 4, second intermediate roller group, 5, N intermediate roller group, 6, second roller group, 7, metal roll, 8, correction cover plate, 81, cover plate, 82, correction unit, 83, connecting strip board, 84, correction strip, 85, first mounting hole, 86, second mounting hole, 87, handle, 9, first compression roller group, 10, second compression roller group. Specific implementation
[0024] In the description of the utility model, it is necessary to explain that, unless there is explicit provision and limitation, the term "installation", "connection", "connection" should be broad sense, for example, it can be fixed connection, can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements.For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0025] In the description of the utility model, it is necessary to understand that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.In the description of the utility model, the meaning of "a plurality of" is two or more than two, unless there is another accurate and specific provision.
[0026] The terms "first", "second", "third", "fourth" and the like in the description and in the claims of the present application, and in the above Description of Related Art, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of these terms herein is to be construed to cover a non-sequential process unless expressly indicated otherwise. Further, the use of "including", "comprising" and "having" and variations thereof herein are intended to be broad and encompass the terms "consisting of" and "consisting essentially of" unless otherwise indicated. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an overly literal or overly formal sense unless expressly so defined herein.
[0027] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0028] The technical solutions of the present application will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described in some embodiments.
[0029] Please refer to Figures 1-5 , Figure 1 is a structure schematic diagram of the chemical deposition cylinder of the present application, Figure 2 is a structure schematic diagram of the chemical deposition cylinder of the present application, Figure 3 is a structure schematic diagram of the chemical deposition cylinder of the present application, Figure 4 is a structure schematic diagram of the chemical deposition cylinder of the present application, Figure 5 is a structure schematic diagram of the chemical deposition cylinder of the present application.
[0030] A fuel cell metal plate chemical deposition device, comprising a deposition cylinder body 1, the deposition cylinder body 1 is a long strip-shaped cylinder body, a first roller group 2, an intermediate roller group area and a second roller group 6 are sequentially arranged between the front end and the rear end of the deposition cylinder body 1, the intermediate roller group area comprises a first intermediate roller group 3, a second intermediate roller group 4,..., and an Nth intermediate roller group 5, the first roller group 2, the first intermediate roller group 3, the Nth intermediate roller group 5 and the second roller group 6 are turning roller groups, the second intermediate roller group 4,..., and the (N-1)th intermediate roller group are conveying rollers, the intermediate roller group area is located below the liquid level line of the deposition cylinder body 1, the first roller group 2 and the second roller group 6 are located above the liquid level line of the deposition cylinder body 1, and N is an integer greater than 2.
[0031] The metal coil 7 is conveyed through the deposition liquid of the deposition cylinder 1 by the first roller group 2, the first intermediate roller group 3, the second intermediate roller group 4, the Nth intermediate roller group 5 and the second roller group 6 to form a protective layer.
[0032] By arranging the first roller group 2, the first intermediate roller group 3, the second intermediate roller group 4, the Nth intermediate roller group 5 and the second roller group 6, the existing batch type protective layer is improved to a continuous type, and the uniformity of the plated layer can be improved under the condition that the plating liquid is unchanged.
[0033] In one or more specific embodiments of the present application, a first compression roller group 9 is arranged between the first roller group 2 and the first intermediate roller group 3, and a second compression roller group 10 is arranged between the Nth intermediate roller group 5 and the second roller group 6, so as to achieve better conveying effect.
[0034] In one or more specific embodiments of the present application, N is 5-30.
[0035] In one or more specific embodiments of the present application, the top of the deposition cylinder 1 is covered with a plurality of correction cover plates 8, the plurality of correction cover plates 8 are arranged along the length direction of the deposition cylinder 1, and adjacent two roller groups in the intermediate roller group area correspond to one correction cover plate 8. The correction cover plate 8 is used to prevent the liquid in the deposition cylinder 1 from emitting odor and affecting the air environment. More importantly, it is used to prevent the metal coil 7 from deviating and causing the deposition time to be inconsistent with the set time and the set position of the plating liquid concentration, thereby causing the quality of the plated layer to not meet the requirements.
[0036] In one or more specific embodiments of the present application, the correction cover plate 8 comprises a cover plate 81 and two detachable correction units 82 installed on the cover plate 81 and facing the metal coil 7, the two correction units 82 are symmetrically installed with the length direction center line of the correction cover plate 8 as the center, each correction unit 82 comprises a connecting strip-shaped plate 83, a plurality of correction strips 84 are equidistantly arranged on the connecting strip-shaped plate 83 along the length direction, and the correction strips 84 are arranged instead of correction plates, so as to reduce the influence on the metal coil 7 and the deposition liquid or the electroplating liquid as much as possible, and to avoid affecting the plating effect.
[0037] In one or more specific embodiments of the present application, at least two rows of first mounting holes 85 are symmetrically arranged on the cover plate 81 along the width direction and with the length direction center line of the correction cover plate 8 as the center, second mounting holes 86 are arranged on the connecting strip-shaped plate 83, the correction unit 82 is installed on the cover plate 81 through the first mounting hole 85, and the first mounting hole 85 cooperates with the second mounting hole 86. When the width of the metal coil 7 changes, the correction unit 82 can be removed and reinstalled, and the plating effect can be achieved. The fastener can be in the form of a screw or a bolt, or can be other fastening structures that can be fastened and detached, which is not particularly limited here.
[0038] In one or more specific embodiments of the present application, each row of first mounting holes 85 has two holes, and the second mounting hole 86 has two holes, and the purpose is to install firmly.
[0039] In one or more specific embodiments of the present application, in order to facilitate taking and placing, the cover plate 81 is provided with a handle 87.
[0040] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A chemical deposition apparatus for metal electrode plates in a fuel cell, characterized in that, The fuel cell metal plate chemical deposition device comprises a deposition cylinder (1), the deposition cylinder (1) is a long strip-shaped cylinder, a first roller group (2), an intermediate roller group area and a second roller group (6) are sequentially arranged between the front end and the rear end of the deposition cylinder (1), the intermediate roller group area comprises a first intermediate roller group (3), a second intermediate roller group (4), …, and an Nth intermediate roller group (5), the first roller group (2), the first intermediate roller group (3), the Nth intermediate roller group (5) and the second roller group (6) are turning roller groups, the second intermediate roller group (4), …, and the (N-1)th intermediate roller group are conveying rollers, the intermediate roller group area is located below the liquid level line of the deposition cylinder (1), the first roller group (2) and the second roller group (6) are located above the liquid level line of the deposition cylinder (1), and N is an integer greater than 2.
2. The apparatus for electroless deposition of fuel cell metal current collector according to claim 1, wherein The first roller group (2) and the first intermediate roller group (3) are provided with a first pressing roller group (9), and the Nth intermediate roller group (5) and the second roller group (6) are provided with a second pressing roller group (10).
3. The apparatus for electroless deposition of fuel cell metal current collector of claim 1, wherein, N is 5-30.
4. The apparatus for electroless deposition of fuel cell metal current collector of claim 1, wherein, The top of the deposition cylinder (1) is covered with a plurality of correction cover plates (8), the plurality of correction cover plates (8) are arranged along the length direction of the deposition cylinder (1), and adjacent two roller groups in the intermediate roller group area correspond to a correction cover plate (8).
5. The apparatus for electroless deposition of fuel cell metal bipolar plates according to claim 4, wherein The correction cover plate (8) comprises a cover plate (81) and two detachable correction units (82) installed on the cover plate (81) and facing the metal coil (7), the two correction units (82) are symmetrically installed with the length direction center line of the correction cover plate (8) as the center, each correction unit (82) comprises a connecting strip-shaped plate (83), a plurality of correction strips (84) are equidistantly arranged on the connecting strip-shaped plate (83) along the length direction.
6. The apparatus for electroless deposition of fuel cell metal bipolar plates according to claim 5, wherein, At least two rows of first mounting holes (85) are symmetrically arranged on the cover plate (81) along the width direction with the length direction center line of the correction cover plate (8) as the center, second mounting holes (86) are arranged on the connecting strip-shaped plate (83), the correction unit (82) is mounted on the cover plate (81) through the first mounting hole (85) point, and the first mounting hole (85) is matched with the second mounting hole (86).
7. The apparatus for electroless deposition of fuel cell metal current collector of claim 6, wherein, Each row of first mounting holes (85) has two holes, and the second mounting hole (86) has two holes.
8. The apparatus for electroless deposition of fuel cell metal bipolar plates according to claim 4, wherein The cover plate (81) is provided with a handle (87).