Shock-resistant upper and lower runner plates

Abstract

The utility model discloses an impact-resistant upper and lower runner plate, and relates to the technical field of runner plates. The device specifically comprises an upper plate and a runner plate fixed to one side wall of the upper plate, the runner plate protrudes in the direction away from the upper plate, the runner plate and the upper plate define a runner, a nanometer coating is arranged on the side wall, away from the upper plate, of the runner plate, and the attaching area of the runner plate and the upper plate is at least larger than the contact area of the runner and the upper plate. The nanometer coating is arranged on the side wall, away from the upper plate, of the runner plate, the impact resistance of the runner plate is improved through the nanometer coating, meanwhile, the oxidation resistance of the runner plate is improved, meanwhile, the attaching area of the runner plate and the upper plate is set to be larger than the area of the runner, and therefore the attaching face of the runner plate and the upper plate can be enlarged, and the service life of the runner plate is prolonged. According to the flow channel structure, the attaching face of the flow channel plate and the upper plate is larger, larger oblique force can be borne, meanwhile, the shrunk flow channel can resist larger impact force, the flow channel is not prone to deformation, the impact resistance of the flow channel plate is improved, and meanwhile the flow channel is further prevented from being compacted.

Description

Technical Field

[0001] This utility model relates to the field of flow channel plate technology, and in particular to an impact-resistant upper and lower flow channel plate. Background Technology

[0002] Impact-resistant upper and lower flow channels refer to a structure designed at the bottom of the battery pack to improve the battery pack's impact resistance when subjected to bottom impacts.

[0003] GB38031 has included the impact energy of 150J on the bottom of the battery pack in the performance evaluation items. In the existing CTP liquid cooling integrated solution, the liquid cooling plate is glued to the cell and cannot be disassembled. The gap between the flow channel and the bottom plate is conventionally designed to be about 3-5mm. When the impact energy of 150J is applied directly below the flow channel, the flow channel is easily compacted and cannot be replaced. In severe cases, it will affect the normal operation of the cooling system.

[0004] In the existing technology, a cover plate and a corrugated flow channel plate are fixed together, and an adhesive layer is used to fix the flow channel plate on the side near the bottom guard plate, so that the bond between the bottom guard plate and the flow channel plate is more stable. When the bottom guard plate is impacted, the flow channel plate absorbs energy after the impact, which can absorb part of the energy and improve the impact performance of the flow channel plate.

[0005] However, the above solution still has some shortcomings. It only uses a corrugated flow channel plate to resist impact. After the flow channel plate is stamped and deformed, the local depression is obvious, which can easily compact the cross section of the flow channel and affect the normal use of the flow channel.

[0006] Therefore, this application aims to increase the impact resistance of the flow channel plate, while further preventing the flow channel from being compacted and affecting its normal operation. Utility Model Content

[0007] The main purpose of this invention is to provide an impact-resistant upper and lower flow channel plate, which aims to increase the impact resistance of the flow channel plate and further prevent the flow channel from being compacted, thus affecting the normal operation of the flow channel.

[0008] To achieve the above objectives, this utility model proposes an impact-resistant upper and lower flow channel plate, including an upper plate and a flow channel plate fixed to one side wall of the upper plate. The flow channel plate protrudes away from the upper plate and forms a flow channel with the upper plate. The side wall of the flow channel plate away from the upper plate is provided with a nano-coating. The contact area between the flow channel plate and the upper plate is at least greater than the contact area between the flow channel and the upper plate.

[0009] In the above scheme, the nano-coating replaces the original electrophoretic coating, which not only prevents oxidation of the flow channel plate, but also further improves the impact resistance of the flow channel plate. The nano-coating preferably adopts carbon nano-coating, which improves the impact resistance by forming a protective layer to prevent oxidation and increasing the toughness and hardness of the coating. The contact area between the flow channel plate and the upper plate is larger than the area of ​​the flow channel, making the contact area between the flow channel plate and the upper plate larger. When the flow channel is impacted, the flow channel plate located at the flow channel is impacted. Under the combined action of the nano-coating, the flow channel is more tough and the width of the flow channel is narrower. During the impact resistance process, the deformation of the flow channel plate is smoother, rather than obvious local depression, so as to prevent the flow channel from being completely compacted by the impact.

[0010] Furthermore, the nano-coating is a carbon nano-coating. Alternatively, MoSi2-based coatings, ZrSi2-MoSi2 coatings, TiSiN / AlCrN nano-multilayer coatings, or CrSi2-ZrSi2-Y2O3 / SiC coatings may also be used.

[0011] Furthermore, in the flow channel, the gap between the upper plate and the flow channel plate is 3mm to 5mm. The thickness of the flow channel meets overall requirements, ensuring that after impact, the center of the flow channel is compacted towards the upper plate, while sufficient space remains on both sides to prevent compaction and ensure normal operation of the flow channel.

[0012] Furthermore, the side of the flow channel plate facing the upper plate is plated with a metal layer, and the upper plate and the flow channel plate are welded together through the metal layer.

[0013] Furthermore, the metal layer is brazed to the upper plate. The metal layer, serving as a raw material or auxiliary material for laser welding, is preferably formed by brazing. The metal layer facilitates brazing; it is worth noting that aluminum is the preferred material for the metal layer. Aluminum-plated steel is widely used due to its superior corrosion resistance and high-temperature resistance compared to galvanized steel. During brazing, the aluminum layer forms a dense protective layer, effectively protecting the base material. Especially during welding, the aluminum layer reduces oxidation of the base material.

[0014] Furthermore, the metal layer is disposed on the mating surface of the flow channel plate and the upper plate. This method reduces the area of ​​the metal layer used, eliminating the need for metal plating in the flow channel section, thus reducing overall material waste. The metal layer also contributes to the brazing quality of the upper plate and the flow channel plate. The flow channel plate needs to be made of oxidation-resistant materials, such as stainless steel.

[0015] Furthermore, the metal layer is made of aluminum.

[0016] Furthermore, the cross-section of the flow channel is trapezoidal, square, or semi-circular. Preferably, an isosceles trapezoid is used, so that the flow channel can release the impact force evenly to both sides during impact, and the flow channel can evenly transmit the force to the connection between the flow channel plate and the upper plate until the flow channel deforms due to excessive impact.

[0017] Furthermore, the upper plate is made of aluminum, and the flow channel plate is made of steel. Steel has greater rigidity and impact resistance than aluminum, making it more suitable for the flow channel plate and improving its impact resistance.

[0018] The above technical solution has the following advantages:

[0019] This invention involves fixing the flow channel plate and the upper plate, then applying a nano-coating to the side wall of the flow channel plate away from the upper plate. This nano-coating increases the impact resistance and oxidation resistance of the flow channel plate. Furthermore, the contact area between the flow channel plate and the upper plate is set to be larger than the area of ​​the flow channel, thereby increasing the contact surface area and minimizing the size of each flow channel. When an impact occurs, the flow channel subsequently indents, further increasing the contact surface area between the flow channel plate and the upper plate, enabling it to withstand greater oblique forces. The reduced size of the flow channel also allows it to resist greater impact forces, making it less prone to deformation and increasing the impact resistance of the flow channel plate. Additionally, it further prevents the flow channel from being compacted, which could affect its normal operation.

[0020] A metal layer is plated on the side of the flow channel plate facing the upper plate. The metal layer can help braze the upper plate and the flow channel plate, and at the same time, the metal layer can further improve the structural strength of the flow channel plate and increase its impact resistance. Attached Figure Description

[0021] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] In the diagram: 1. Top plate; 2. Metal layer; 3. Flow channel plate; 4. Nano coating. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain this utility model and do not constitute a limitation on this utility model.

[0025] like Figure 1As shown, an impact-resistant upper and lower flow channel plate includes an upper plate 1 and a flow channel plate 3 fixed to one side wall of the upper plate 1. The flow channel plate 3 protrudes away from the upper plate 1 and forms a flow channel with the upper plate 1. A nano-coating 4 is provided on the side wall of the flow channel plate 3 away from the upper plate 1. The contact area between the flow channel plate 3 and the upper plate 1 is larger than the area of ​​the flow channel. The protrusion of the flow channel plate 3 surrounds the upper plate 1 to form a flow channel through which electrolyte can flow. The nano-coating 4 is applied to the side wall of the flow channel plate 3, replacing the original electrophoretic coating. This not only prevents oxidation of the flow channel plate 3 but also further improves its impact resistance. The nano-coating 4 is preferably a carbon nano-coating; however, MoSi2-based coatings, ZrSi2-MoSi2 coatings, and TiSiN / Al coatings can also be used. The CrN nano-multilayer coating or CrSi2-ZrSi2-Y2O3 / SiC coating improves impact resistance by forming a protective layer to prevent oxidation and increasing the toughness and hardness of the coating. The contact area between the flow channel plate 3 and the upper plate 1 is at least larger than the contact area between the flow channel and the upper plate 1. The contact area is the contact area between the flow channel and the upper plate 1, making the contact area between the flow channel plate 3 and the upper plate 1 larger. When the flow channel is impacted, the flow channel plate 3 located at the flow channel is impacted. Under the combined action of the nano-coating 4, the flow channel has stronger toughness and narrower width. During the impact resistance process, the flow channel deformation of the flow channel plate 3 is smoother, rather than obvious local depression, so as to prevent the flow channel from being completely compacted by the impact.

[0026] In the flow channel, the gap between the upper plate 1 and the flow channel plate 3 is 3mm to 5mm. The thickness of the flow channel meets the overall requirements, so that after the flow channel is impacted, the middle part of the flow channel is compacted towards the upper plate 1, while the sides still have enough space to prevent the flow channel from being compacted and affecting the normal operation of the flow channel.

[0027] To improve the installation method of the flow channel plate 3 and the upper plate 1, a metal layer 2 is provided on the side of the flow channel plate 3 facing the upper plate 1. The upper plate 1 and the flow channel plate 3 are welded together by the metal layer 2. Since both the upper plate 1 and the flow channel plate 3 are metal plates, and to improve the installation strength of the upper plate 1 and the flow channel plate 3, laser welding can be used to weld the upper plate 1 and the flow channel plate 3 together. The metal layer 2 serves as the raw material or auxiliary material for laser welding, and brazing is preferred. The metal layer 2 facilitates brazing. It should be noted that the metal layer 2 is preferably made of aluminum. Aluminum-plated plates are widely used because of their good corrosion resistance and better high-temperature resistance than galvanized plates. During the brazing process, the aluminum layer can form a dense protective layer, effectively protecting the base material. In particular, during the welding process, the aluminum layer can reduce the oxidation of the base material.

[0028] As an example of this application:

[0029] Metal layer 2 is plated on the entire surface of flow channel plate 3. If aluminum plating is used, the aluminum layer can form a protective layer to protect the entire surface of flow channel plate 3, prevent oxidation on the side of flow channel plate 3 facing the upper plate 1, improve the service life of flow channel plate 3, and facilitate the brazing of upper plate 1 and flow channel plate 3.

[0030] As a second embodiment of this application:

[0031] The metal layer 2 is located on the mating surface of the flow channel plate 3 and the upper plate 1. This method can reduce the area of ​​the metal layer 2, so that the flow channel part does not need to be plated with the metal layer 2, which can reduce the overall material loss. The metal layer 2 helps the brazing quality of the upper plate 1 and the flow channel plate 3. The flow channel plate 3 needs to be made of oxidation-resistant materials, such as stainless steel.

[0032] like Figure 1 As shown, the cross-section of the flow channel is trapezoidal, square, or semi-circular. In this application, a trapezoidal shape is preferred. For example, an isosceles trapezoid is used so that the flow channel can release the impact force evenly to both sides when impacted, and the flow channel can evenly transmit the force to the connection between the flow channel plate 3 and the upper plate 1 until the flow channel deforms due to excessive impact.

[0033] like Figure 1 As shown, aluminum is selected for the upper plate 1 and steel is selected for the flow channel plate 3 to improve the overall performance. Aluminum can be selected for the metal layer 2 to ensure that the brazing of the metal layer 2 and the upper plate 1 will not deform. Steel has stronger rigidity and impact resistance than aluminum, and is more suitable for the flow channel plate 3, thereby improving the impact resistance of the flow channel plate 3.

[0034] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An impact-resistant upper and lower flow channel plate, comprising an upper plate (1) and a flow channel plate (3) fixed to one side wall of the upper plate (1), wherein the flow channel plate (3) protrudes away from the upper plate (1) and forms a flow channel with the upper plate (1), characterized in that, The flow channel plate (3) has a nano-coating (4) on the side wall away from the upper plate (1), and the contact area between the flow channel plate (3) and the upper plate (1) is at least greater than the contact area between the flow channel and the upper plate (1).

2. The impact-resistant upper and lower flow channel plates as described in claim 1, characterized in that, The nano-coating (4) is a carbon nano-coating.

3. The impact-resistant upper and lower flow channel plates as described in claim 1, characterized in that, In the flow channel, the gap between the upper plate (1) and the flow channel plate (3) is 3mm to 5mm.

4. The impact-resistant upper and lower flow channel plates as described in claim 1, characterized in that, The flow channel plate (3) has a metal layer (2) plated on the side facing the upper plate (1), and the upper plate (1) and the flow channel plate (3) are welded together by the metal layer (2).

5. The impact-resistant upper and lower flow channel plates as described in claim 4, characterized in that, The metal layer (2) is brazed to the upper plate (1).

6. The impact-resistant upper and lower flow channel plates as described in claim 4, characterized in that, The metal layer (2) is disposed on the mating surface of the flow channel plate (3) and the upper plate (1).

7. The impact-resistant upper and lower flow channel plates as described in claim 4, characterized in that, The metal layer (2) is made of aluminum.

8. The impact-resistant upper and lower flow channel plates as described in claim 1, characterized in that, The cross-section of the flow channel is trapezoidal, square, or semi-circular.

9. The impact-resistant upper and lower flow channel plates as described in claim 1, characterized in that, The upper plate (1) is made of aluminum, and the flow channel plate (3) is made of steel.

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