Device for repairing crushed metal polar plate of fuel cell
By designing a compressive repair device for fuel cell metal pole plate, using the combination of guided bearing and shrinking repair end to solve the problem of low repair efficiency and high cost in existing technologies, and achieve efficient and accurate repairs. Effect.
Patent Information
- Application Number
- CN202421042713.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-14
AI Technical Summary
Fuel cell metal plates are prone to compression damage during production, and the existing repair methods are inefficient and costly, making it difficult to meet the needs of large-scale production.
Design a device for the repair of fuel cell metal polar plates, including the bottom plate, the bracket, the guidance bearing, and the repair rod. Freshly dispersed pressure to repair.
It improves the efficiency of compressive wound repair, reduces production costs, and can more accurately and uniformly repair the pressure -wounded area of metal polar plates.
Smart Images
Figure CN222402874U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fuel cells, and particularly relates to a device for repairing the crush damage of a metal plate of a fuel cell. Background Art
[0002] A fuel cell is a device that converts chemical energy directly into electrical energy. Metal bipolar plates are one of the core components of fuel cells. They are mainly made of metal sheets into anode plates and cathode plates by stamping, and the anode plates and cathode plates are welded together by laser welding to form a complete metal bipolar plate. At present, in fuel cell technology, because the material of fuel cell metal plates is thin and easy to deform, it is easy for metal plates to be crushed during the production process of fuel cell metal plates. If the crushed metal plates cannot be effectively repaired, it will directly lead to product scrapping and significantly increase production costs. Existing repair methods generally rely on manual handheld tool operations, but the efficiency of crush repair work is low, the repair effect is unstable, it is difficult to meet the needs of large-scale production, and it is not conducive to reducing costs.
[0003] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Utility Model Content
[0004] The technical problem to be solved by the utility model is that the efficiency of crushing injury repair is low, which is not conducive to reducing costs.
[0005] In order to solve the above-mentioned technical problems, the utility model provides a device for repairing the crush damage of the metal plate of a fuel cell, the device comprising: a lower base plate having a bearing surface, a bracket arranged on the bearing surface, a guide bearing having a guide groove, and a repair rod, the bearing surface is used to place the metal plate, and the guide bearing is arranged on the bracket; the repair rod comprises a rod body and a repair end connected to the rod body, the rod body passes through the guide groove, the repair end is located between the rod body and the bearing surface, and the bottom end surface of the repair end is parallel to the bearing surface.
[0006] Optionally, a length extension direction of the guide groove is perpendicular to the bearing surface, so that the rod body moves along the length extension direction of the guide groove.
[0007] Optionally, the center of the bottom end surface is consistent with the axial direction of the rod body, and the bottom end surface is located between the rod body and the metal electrode plate.
[0008] Optionally, the numerical range of the flatness of the bearing surface is 0.2 mm to 0.4 mm, and the numerical range of the surface finish of the bearing surface is 0.2 μm to 0.4 μm.
[0009] Optionally, the flatness of the bottom end surface has a numerical range of 0.2 mm to 0.4 mm, and the surface finish of the bottom end surface has a numerical range of 0.2 μm to 0.4 μm.
[0010] Optionally, the device further comprises: a push rod, the push rod is connected to the rod body, and the push rod is perpendicular to the rod body, and the guide groove is located between the push rod and the bearing surface.
[0011] Optionally, the rod body includes a first connecting end and a second connecting end connected to the first connecting end, the first connecting end is provided with a mounting hole for inserting the push rod, the second connecting end is connected to the repair end, and the first connecting end, the second connecting end and the repair end are integrally formed.
[0012] Optionally, the device further comprises: a limiting rod, wherein the limiting rod is detachably connected to the second connecting end.
[0013] Optionally, the second connecting end is provided with a limiting hole for the limiting rod to pass through.
[0014] Optionally, a projection of the guide groove on the limiting rod along a direction in which the first connecting end approaches the second connecting end is located on the limiting rod.
[0015] Beneficial effects:
[0016] The utility model provides a device for repairing the crushed metal plate of a fuel cell, wherein the metal plate is placed on a bearing surface located on a lower bottom plate, a bracket is arranged on the bearing surface of the lower bottom plate, a guide bearing is arranged on the bracket, a rod body of a repair rod passes through a guide groove located on the guide bearing, a repair end of the repair rod is located between the rod body and the bearing surface, the repair end is tapered in a direction close to the bearing surface, and the bottom end surface of the repair end is parallel to the bearing surface. In this way, after the bearing surface of the lower bottom plate provides support for the crushed metal plate, the guide bearing arranged on the bracket guides the repair rod to slide along the guide groove to the crushed area on the metal plate, and the crushed area of the metal plate is clamped between the bottom end surface of the repair end in the repair rod and the bearing surface of the lower bottom plate. At the same time, under the action of the downward pressure of the repair end pushed by the rod body of the repair rod, the repair end in a tapered shape will accurately correspond and evenly disperse the downward pressure in the crushed area of the metal plate, thereby realizing the repair of the crushed metal plate. Thus, the technical effect of being able to improve the efficiency of crushing repair and being conducive to reducing costs is achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 A schematic diagram of the structure of a device for repairing the crush damage of a metal plate of a fuel cell provided by an embodiment of the utility model;
[0019] Figure 2 A schematic diagram of the structure of a repair rod in a device for repairing a metal plate crush of a fuel cell provided by an embodiment of the utility model;
[0020] Figure 3 A schematic structural diagram of a guide bearing in a device for repairing crush damage to a fuel cell metal plate provided in an embodiment of the utility model.
[0021] The meanings of the symbols in the accompanying drawings are:
[0022] 1—lower base plate, 11—bearing surface; 2—bracket; 3—guide bearing, 31—guide groove; 4—repair rod, 41—rod body, 411—first connecting end, 4111—mounting hole, 412—second connecting end, 4121—limiting hole, 42—repair end, 421—bottom end surface; 5—push rod. DETAILED DESCRIPTION
[0023] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0024] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.
[0025] In the embodiments of the present application, at least one refers to one or more; multiple refers to two or more. In the description of the present application, the words "first", "second", "third", etc. are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.
[0026] References to "one embodiment" or "some embodiments" etc. described in this specification mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, in this specification, the terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. It should be noted that in the embodiments of the present application, "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone.
[0027] It should be pointed out that in the embodiments of the present invention, when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. At the same time, "connection" in the embodiments of the present application can also be understood as electrical connection, and the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, A is connected to B, which can be either a direct connection between A and B or an indirect connection between A and B through one or more other electrical components. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the present invention.
[0028] The utility model provides a device for repairing the crush damage of the metal plate of a fuel cell, please refer to Figures 1 to 3 As shown, Figure 1 This is a schematic diagram of the structure of a device for repairing a metal plate crush of a fuel cell provided by an embodiment of the utility model. Figure 2 This is a schematic diagram of the structure of a repair rod 4 in a device for repairing a metal plate crush of a fuel cell provided by an embodiment of the utility model. Figure 3It is a schematic diagram of the structure of a guide bearing 3 in a device for repairing a metal plate crush of a fuel cell provided in an embodiment of the utility model. A device for repairing a metal plate crush of a fuel cell provided in an embodiment of the utility model comprises a lower base plate 1, a bracket 2, a guide bearing 3 and a repair rod 4, wherein the lower base plate 1 has a bearing surface 11, and the bearing surface 11 is used to place the metal plate. The bracket 2 is arranged on the bearing surface 11, the guide bearing 3 has a guide groove 31, and the guide bearing 3 is arranged on the bracket 2. The repair rod 4 comprises a rod body 41 and a repair end 42, wherein the repair end 42 is connected to the rod body 41, the rod body 41 passes through the guide groove 31, the repair end 42 is located between the rod body 41 and the bearing surface 11, the repair end 42 is tapered in a direction close to the bearing surface 11, and the bottom end surface 421 of the repair end 42 is parallel to the bearing surface 11.
[0029] Among them, there is a space for accommodating the metal electrode plate and the bracket 2 on the bearing surface 11 of the lower base plate 1, and the bearing surface 11 can be in a flat shape. The bottom end surface 421 of the repair end 42 refers to the surface of the repair end 42 close to the bearing surface 11. After the metal electrode plate is placed on the bearing surface 11, the crushed area of the metal electrode plate will face the repair end 42 of the repair rod 4, pushing the rod body 41 to slide in the guide groove 31 toward the direction close to the bearing surface 11, so that the bottom end surface 421 of the repair end 42 and the bearing surface 11 clamp the metal electrode plate from both sides of the metal electrode plate.
[0030] The guide groove 31 of the guide bearing 3 has a space inside to accommodate the rod body 41 of the repair rod 4, and the rod body 41 of the repair rod 4 can slide inside the guide groove 31. The repair end 42 of the repair rod 4 is tapered along the direction close to the bearing surface 11, which means that the top of the repair end 42 is wider and the bottom is narrower, and an inclined surface is formed in the repair end 42 from the top to the direction close to the bottom. At the same time, the bottom end surface 421 of the repair end 42 is parallel to the bearing surface 11, so that during the repair process, the pressure can be evenly dispersed to the crushed area of the metal plate.
[0031] In this embodiment, the metal electrode plate is placed on the bearing surface 11 of the lower base plate 1, the bracket 2 is arranged on the bearing surface 11 of the lower base plate 1, the guide bearing 3 is arranged on the bracket 2, the rod body 41 of the repair rod 4 passes through the guide groove 31 of the guide bearing 3, the repair end 42 of the repair rod 4 is located between the rod body 41 and the bearing surface 11, the repair end 42 is tapered in the direction approaching the bearing surface 11, and the bottom end surface 421 of the repair end 42 is parallel to the bearing surface 11. In this way, after the bearing surface 11 of the lower bottom plate 1 provides support for the crushed metal plate, the guide bearing 3 provided on the bracket 2 guides the repair rod 4 to slide along the guide groove 31 to the crushed area on the metal plate, and the crushed area of the metal plate is clamped between the bottom end surface 421 of the repair end 42 in the repair rod 4 and the bearing surface 11 of the lower bottom plate 1. At the same time, under the downward pressure of the repair end 42 pushed by the rod body 41 of the repair rod 4, the repair end 42 in a tapered shape will accurately correspond and evenly disperse the downward pressure in the crushed area of the metal plate, thereby achieving the crush repair of the metal plate. Thereby achieving the technical effect of improving the efficiency of crush repair and reducing costs.
[0032] As an embodiment, the length extension direction of the guide groove 31 is perpendicular to the bearing surface 11, so that the rod body 41 of the repair rod 4 can move up and down in a direction perpendicular to the bearing surface 11, ensuring that the repair end 42 can accurately perform repair operations perpendicular to the surface of the metal plate. When the repair rod 4 moves in a direction perpendicular to the bearing surface 11 under the guidance of the guide groove 31, the repair end 42 can accurately reach and act on the crushed area on the metal plate, which is beneficial to improve the repair effect. In actual operation, the fuel cell metal plate to be repaired is placed on the bearing surface 11, and the rod body 41 of the repair rod 4 can move in the length extension direction of the guide groove 31 through the guide bearing 3 on the bracket 2. Since the guide groove 31 is perpendicular to the bearing surface 11, the repair end 42 can perform repairs perpendicular to the surface of the metal plate, thereby improving the accuracy and efficiency of the repair.
[0033] As an embodiment, the center of the bottom end face 421 of the repair end 42 is the same as the axial direction of the rod body 41, and the bottom end face 421 is located between the rod body 41 and the metal plate, so that the repair end 42 can maintain axial consistency with the rod body 41 during the repair process, ensuring uniform transmission of the repair force. In actual operation, when the repair rod 4 moves toward the crushed area on the metal plate under the guidance of the guide groove 31, since the center of the bottom end face 421 of the repair end 42 is the same as the axial direction of the rod body 41, and the bottom end face 421 is located between the rod body 41 and the metal plate, the repair end 42 can accurately act on the crushed area and evenly disperse the repair force on the crushed area, which is conducive to improving the accuracy and efficiency of the repair, and achieving a more uniform repair effect.
[0034] As an implementation method, the flatness value range of the bearing surface 11 is set to 0.2 mm to 0.4 mm, and the surface finish value range is set to 0.2 μm to 0.4 μm, so that the bearing surface 11 has high flatness and finish, providing a stable supporting environment for the metal plate. In actual operation, the flat and smooth bearing surface 11 can ensure that the metal plate maintains a stable posture during the repair process, avoiding poor repair effect or secondary damage caused by the unevenness or roughness of the bearing surface 11.
[0035] As an embodiment, the flatness value range of the bottom end surface 421 of the repair end 42 is set to 0.2 mm to 0.4 mm, and the surface finish value range is set to 0.2 μm to 0.4 μm, so that the bottom end surface 421 of the repair end 42 has high flatness and finish. In actual operation, the flat and smooth bottom end surface 421 of the repair end 42 can ensure a closer and more uniform contact with the metal plate, avoid poor repair effect or secondary damage caused by uneven or rough contact surface, and help improve the accuracy and efficiency of repair, as well as improve the repair effect.
[0036] In some embodiments, the device for repairing the crushed metal plate of a fuel cell provided by the embodiment of the utility model further includes a push rod 5, which is connected to the rod body 41 of the repair rod 4 and is perpendicular to the rod body 41, and the guide groove 31 is located between the push rod 5 and the bearing surface 11. During the repair process, the user can control the moving direction and strength of the repair rod 4 by operating the push rod 5. Since the push rod 5 is perpendicular to the rod body 41, the user can accurately control the repair strength of the repair end 42 on the crushed area of the metal plate by adjusting the strength of the push rod 5, which is conducive to achieving a more accurate repair effect.
[0037] As an embodiment, the rod body 41 of the repair rod 4 may include a first connection end 411 and a second connection end 412, and a mounting hole 4111 is provided on the first connection end 411, and the mounting hole 4111 is used for inserting the push rod 5. The second connection end 412 is directly connected to the repair end 42, and the first connection end 411, the second connection end 412 and the repair end 42 may be integrally formed. During the repair process, the push rod 5 is connected to the rod body 41 by inserting into the mounting hole 4111 of the first connection end 411, and the user can control the movement of the repair rod 4 by operating the push rod 5, so that the repair rod 4 slides along the guide groove 31 of the guide bearing 3 until the repair end 42 accurately reaches the crushed area of the metal plate.
[0038] In some embodiments, the device for repairing the crushed metal plate of a fuel cell provided by the embodiment of the utility model further includes a limiting rod, which is detachably connected to the second connection end 412 of the repair rod 4. When the repair rod 4 needs to be limited to prevent the repair rod 4 from falling out of the guide groove 31, the limiting rod can be installed on the second connection end 412, and the repair rod 4 is limited by the limiting rod. When the repair rod 4 needs to be pushed to move freely in the guide groove 31, the limiting rod can be separated from the repair rod 4 so that the repair rod 4 can slide in the guide groove 31.
[0039] As an embodiment, a limiting hole 4121 is provided on the second connecting end 412, and the limiting hole 4121 is used for the limiting rod to pass through, so that the limiting rod and the second connecting end 412 can be firmly connected, and at the same time it is convenient to separate the limiting rod and the second connecting end 412 from each other and disassemble the limiting rod.
[0040] As an implementation mode, the direction in which the first connection end 411 approaches the second connection end 412 refers to the axial direction of the repair rod 4, that is, the direction perpendicular to the bearing surface 11. The projection of the guide groove 31 on the limit rod along the direction in which the first connection end 411 approaches the second connection end 412 is located on the limit rod, so that when the repair rod 4 moves upward, the limit rod will not slide from the guide groove 31, and the repair rod 4 will be stuck in the guide groove 31, thereby preventing the repair rod 4 from falling off during the moving process.
[0041] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A device for repairing crush damage of fuel cell metal plates, characterized in that: The device includes: a lower base plate with a bearing surface, a bracket arranged on the bearing surface, a guide bearing with a guide groove, and a repair rod, wherein the bearing surface is used to place a metal plate, and the guide bearing is arranged on the bracket; the repair rod includes a rod body and a repair end connected to the rod body, the rod body passes through the guide groove, the repair end is located between the rod body and the bearing surface, and the bottom end surface of the repair end is parallel to the bearing surface.
2. The device for repairing the crush damage of the metal plate of a fuel cell according to claim 1, characterized in that: The length extension direction of the guide groove is perpendicular to the bearing surface, so that the rod body moves along the length extension direction of the guide groove.
3. The device for repairing the crush damage of the metal plate of a fuel cell according to claim 1, characterized in that: The center of the bottom end surface is consistent with the axial direction of the rod body, and the bottom end surface is located between the rod body and the metal plate.
4. The device for repairing the crush damage of the metal plate of a fuel cell according to claim 1, characterized in that: The numerical range of the flatness of the bearing surface is 0.2 mm to 0.4 mm, and the numerical range of the surface finish of the bearing surface is 0.2 μm to 0.4 μm.
5. The device for repairing the crush damage of the metal plate of a fuel cell according to claim 1, characterized in that: The numerical range of the flatness of the bottom end surface is 0.2 mm to 0.4 mm, and the numerical range of the surface finish of the bottom end surface is 0.2 μm to 0.4 μm.
6. The device for repairing the crush damage of the metal plate of a fuel cell according to claim 1, characterized in that: The device further comprises: a push rod, the push rod is connected to the rod body, and the push rod is perpendicular to the rod body, and the guide groove is located between the push rod and the bearing surface.
7. The device for repairing the crush damage of the metal plate of a fuel cell according to claim 6, characterized in that: The rod body includes a first connecting end and a second connecting end connected to the first connecting end, the first connecting end is provided with a mounting hole for inserting the push rod, the second connecting end is connected to the repair end, and the first connecting end, the second connecting end and the repair end are integrally formed.
8. The device for repairing the crush damage of the metal plate of a fuel cell according to claim 7, characterized in that: The device further comprises: a limiting rod, wherein the limiting rod is detachably connected to the second connecting end.
9. The device for repairing the crush damage of the metal plate of a fuel cell according to claim 8, characterized in that: The second connecting end is provided with a limiting hole for the limiting rod to pass through.
10. The device for repairing the crush damage of the metal plate of a fuel cell according to claim 9, characterized in that: A projection of the guide groove on the limiting rod along a direction in which the first connecting end approaches the second connecting end is located on the limiting rod.