Deformation-resistant nickel sheet for CCS

Abstract

The utility model discloses a deformation-resistant nickel sheet for CCS, and relates to the technical field of nickel sheets, the deformation-resistant nickel sheet comprises a main nickel sheet and a bending assembly, the main nickel sheet is of an integrated structure, the bending assembly is arranged on the surface of the main nickel sheet, and the bending assembly comprises a large bending area, an auxiliary nickel sheet, a U-shaped small bending area, a laser welding end and a welding through hole, the large bending area is arranged at the front end of the main nickel sheet, the auxiliary nickel sheet is installed at the front end of the large bending area, and the rear surface of the auxiliary nickel sheet is tightly connected with the front surface of the large bending area. According to the deformation-resistant nickel sheet for the CCS, the deformation force generated by thermal expansion of the battery cell can be prevented from dragging the nickel sheet through the bending assembly, so that the deformation resistance is improved, and the risk of breakage of a welding area of the nickel sheet and an aluminum row is prevented; and through the stainless steel protection plate, the nickel alloy supporting sleeve plate, the galvanized protection sleeve plate, the tinned protection sleeve plate and the hydrophobic abrasion layer, the strength of the device is further enhanced, the device is not prone to deformation or corrosion, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of nickel sheet technology, specifically a deformation-resistant nickel sheet for CCS. Background Technology

[0002] CCS nickel sheets are primarily used in batteries, electronics, and automotive industries. As a highly efficient and precise connection method, they are widely used in power battery modules, electronic devices, and new energy vehicles, ensuring the safety and performance of battery systems by providing stable electrical connections and temperature sampling capabilities. However, current nickel sheets still have the following shortcomings:

[0003] For example, patent document CN219892352U discloses a high-strength nickel sheet. This high-strength nickel sheet can effectively improve the structural stability of the nickel sheet through its integrated structure. It can wrap a high-strength protective layer around the outer end of the nickel sheet, and the reinforced plug and reinforced socket can be adapted to the connection between the conductive plug and the conductive socket, so that the reinforced plug is always protected on the outside of the conductive plug, further improving the structural strength of the nickel sheet. However, since the nickel sheet is a monolithic structure, in actual conditions, large battery cells not only have lateral deformation in the direction of the individual cell electrodes, but also lateral deformation. The cyclic traction force generated by long-term charging and discharging can easily lead to the risk of breakage in the welded area between the nickel sheet and the aluminum busbar.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings, and proposed a deformation-resistant nickel sheet for CCS. Utility Model Content

[0005] The purpose of this invention is to provide a deformation-resistant nickel sheet for CCS to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a deformation-resistant nickel sheet for CCS, comprising a main nickel sheet and a bending assembly. The main nickel sheet is an integral structure, and the bending assembly is disposed on the surface of the main nickel sheet. The bending assembly includes a large bending area, a secondary nickel sheet, a U-shaped small bending area, a laser welding end, and a welding through hole. The large bending area is disposed at the front end of the main nickel sheet, and a secondary nickel sheet is installed at the front end of the large bending area. The rear surface of the secondary nickel sheet is tightly connected to the front surface of the large bending area, and the large bending area and the main nickel sheet are an integral structure tightly connected. U-shaped small bending areas are disposed on both the surface of the main nickel sheet and the surface of the secondary nickel sheet, and a laser welding end is disposed at the rear end of the main nickel sheet, and the laser welding end and the main nickel sheet are an integral structure.

[0007] Furthermore, the front end surface of the secondary nickel sheet is provided with a welding through hole, and the inner end of the welding through hole is filled with nickel alloy.

[0008] Furthermore, both the main nickel sheet and the auxiliary nickel sheet have a hollow internal structure, and both the main nickel sheet and the auxiliary nickel sheet are equipped with stainless steel protective plates.

[0009] Furthermore, a nickel alloy support sleeve is provided on the outer surface of the stainless steel protective plate, and the stainless steel protective plate is a one-piece molded structure.

[0010] Furthermore, a galvanized protective sleeve is fitted onto the outer side of the nickel alloy support sleeve, and a tin-plated protective sleeve is provided on the outer surface of the galvanized protective sleeve.

[0011] Furthermore, both the main nickel sheet and the secondary nickel sheet are nickel alloy structures, and both the main nickel sheet and the secondary nickel sheet are provided with a hydrophobic wear layer.

[0012] Furthermore, the hydrophobic wear layer, main nickel sheet, tin-plated protective sleeve, galvanized protective sleeve, nickel alloy support sleeve, and stainless steel protective plate are arranged sequentially from the outside to the inside, and the tin-plated protective sleeve, galvanized protective sleeve, and nickel alloy support sleeve are all welded together.

[0013] Furthermore, the secondary nickel sheet is an integrated structure, and the rear end of the secondary nickel sheet is welded to the front end of the large bending area.

[0014] This utility model provides a deformation-resistant nickel sheet for CCS, which has the following beneficial effects:

[0015] 1. This utility model incorporates a bending assembly, which includes a large bending area, a secondary nickel sheet, a U-shaped small bending area, a laser welding end, and welding through holes. In use, the nickel sheet is welded to the PCB solder pad area through the welding through holes. The nickel alloy improves welding efficiency. The nickel sheet is welded to a fixed position through the laser welding end. The small bending in the U-shaped small bending area and the bending in the large bending area achieve bending of the nickel sheet, thereby offsetting the deformation caused by the tensile force in the XY direction. At the same time, the bending in the large bending area can solve the problem of offsetting the high and low deformation in the Z-axis direction. This allows the device to prevent the deformation force generated by the thermal expansion of the battery cell from pulling the nickel sheet, improving deformation resistance and preventing the risk of breakage between the nickel sheet and the aluminum busbar welding area.

[0016] 2. This utility model, through the configuration of a stainless steel protective plate, a nickel alloy support sleeve, a galvanized protective sleeve, a tin-plated protective sleeve, and a hydrophobic wear layer, provides the following benefits during use: the stainless steel protective plate increases the overall hardness of the main and auxiliary nickel sheets; the nickel alloy support sleeve provides high heat resistance and improved toughness; the galvanized protective sleeve enhances the deformation resistance of the main and auxiliary nickel sheets; the tin-plated protective sleeve enhances the electrical conductivity of the main and auxiliary nickel sheets; and the hydrophobic wear layer provides strong corrosion resistance. These features further enhance the strength of the device, making it less prone to deformation or corrosion, thus extending its service life. Attached Figure Description

[0017] Figure 1 This is a three-dimensional cross-sectional view of the main nickel sheet structure of a CCS deformation-resistant nickel sheet according to the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of a bending assembly for a CCS deformation-resistant nickel sheet according to the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of a deformation-resistant nickel sheet for CCS according to the present invention.

[0020] In the diagram: 1. Main nickel sheet; 2. Bending assembly; 201. Large bending area; 202. Secondary nickel sheet; 203. U-shaped small bending area; 204. Laser welding end; 205. Welding through hole; 3. Stainless steel protective plate; 4. Nickel alloy support sleeve; 5. Galvanized protective sleeve; 6. Tin-plated protective sleeve; 7. Hydrophobic wear layer. Detailed Implementation

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] like Figures 1 to 3 As shown, a deformation-resistant nickel sheet for CCS includes a main nickel sheet 1 and a bending assembly 2. The main nickel sheet 1 is an integral structure. The bending assembly 2 is disposed on the surface of the main nickel sheet 1 and includes a large bending area 201, a secondary nickel sheet 202, a U-shaped small bending area 203, a laser welding end 204, and a welding through hole 205. The large bending area 201 is disposed at the front end of the main nickel sheet 1, and the secondary nickel sheet 202 is installed at the front end of the large bending area 201. The rear surface of the secondary nickel sheet 202 is tightly connected to the front surface of the large bending area 201, and the large bending area 201 and the main nickel sheet 1 are an integral structure that is tightly connected. The U-shaped small bending area 203 is disposed on the surface of the main nickel sheet 1 and the surface of the secondary nickel sheet 202. The laser welding end 204 is disposed at the rear end of the main nickel sheet 1, and the laser welding end 204 and the main nickel sheet 1 are an integral structure.

[0023] The specific operation is as follows: When in use, the nickel sheet is soldered to the PCB solder pad area through the soldering through hole 205. The nickel alloy can improve the soldering efficiency. The nickel sheet is soldered to a fixed position through the laser welding end 204. Through the small bend of the U-shaped small bend area 203 and the bend of the large bend area 201, the nickel sheet can be bent in multiple directions, thereby offsetting the deformation caused by the tensile force in the XY direction. At the same time, the bend of the large bend area 201 can solve the problem of offsetting the high and low deformation in the Z-axis direction.

[0024] Please refer to Figure 1The front surface of the secondary nickel sheet 202 is provided with a welding through hole 205, and the inner end of the welding through hole 205 is filled with nickel alloy. Both the main nickel sheet 1 and the secondary nickel sheet 202 have hollow internal structures, and both the main nickel sheet 1 and the secondary nickel sheet 202 are provided with stainless steel protective plates 3. The outer surface of the stainless steel protective plate 3 is provided with a nickel alloy support sleeve 4, and the stainless steel protective plate 3 is a one-piece molded structure. A galvanized protective sleeve 5 is sleeved on the outside of the nickel alloy support sleeve 4, and a tin-plated protective sleeve 6 is provided on the outer surface of the galvanized protective sleeve 5. Both the main nickel sheet 1 and the secondary nickel sheet 202 are nickel alloy structures, and both the main nickel sheet 1 and the secondary nickel sheet 202 are provided with a hydrophobic grinding layer 7. The hydrophobic grinding layer 7, the main nickel sheet 1, the tin-plated protective sleeve 6, the galvanized protective sleeve 5, the nickel alloy support sleeve 4, and the stainless steel protective plate 3 are arranged sequentially from the outside to the inside. The tin-plated protective sleeve 6, the galvanized protective sleeve 5, and the nickel alloy support sleeve 4 are all welded together. The secondary nickel sheet 202 is an integrated structure, and the rear end of the secondary nickel sheet 202 is welded to the front end of the large bending area 201.

[0025] The specific operation is as follows: When in use, the stainless steel protective plate 3 can improve the overall hardness of the main nickel sheet 1 and the secondary nickel sheet 202, the nickel alloy support sleeve 4 can make the main nickel sheet 1 and the secondary nickel sheet 202 have high heat resistance and improve toughness, the galvanized protective sleeve 5 can enhance the deformation resistance of the main nickel sheet 1 and the secondary nickel sheet 202, the tin-plated protective sleeve 6 can enhance the electrical conductivity of the main nickel sheet 1 and the secondary nickel sheet 202, and the hydrophobic wear layer 7 has strong corrosion resistance.

[0026] In summary, as Figures 1 to 3 As shown, this CCS uses deformation-resistant nickel sheets. In use, firstly, the nickel sheet is soldered to the PCB solder pad area through the soldering through-hole 205. The nickel alloy improves soldering efficiency. The nickel sheet is then soldered to a fixed position through the laser welding end 204. Multi-directional bending of the nickel sheet is achieved through the small bend in the U-shaped small bend area 203 and the bend in the large bend area 201, thereby offsetting the deformation caused by the tensile force in the XY directions. Simultaneously, the bend in the large bend area 201 can resolve the height differences in the Z-axis direction. Deformation cancellation: During the use of this device, the stainless steel protective plate 3 can improve the overall hardness of the main nickel sheet 1 and the secondary nickel sheet 202, the nickel alloy support sleeve 4 can make the main nickel sheet 1 and the secondary nickel sheet 202 have high heat resistance and improve toughness, the galvanized protective sleeve 5 can enhance the deformation resistance of the main nickel sheet 1 and the secondary nickel sheet 202, the tin-plated protective sleeve 6 can enhance the electrical conductivity of the main nickel sheet 1 and the secondary nickel sheet 202, and the hydrophobic wear layer 7 has strong corrosion resistance.

[0027] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A deformation-resistant nickel sheet for CCS, comprising a main nickel sheet (1) and a bending assembly (2), characterized in that: The main nickel sheet (1) is an integral structure, and the bending assembly (2) is disposed on the surface of the main nickel sheet (1). The bending assembly (2) includes a large bending area (201), a secondary nickel sheet (202), a U-shaped small bending area (203), a laser welding end (204), and a welding through hole (205). The large bending area (201) is disposed at the front end of the main nickel sheet (1), and the secondary nickel sheet (202) is installed at the front end of the large bending area (201). The rear surface of the secondary nickel sheet (202) is tightly connected to the front surface of the large bending area (201), and the large bending area (201) and the main nickel sheet (1) are an integrated structure that is tightly connected. The surface of the main nickel sheet (1) and the surface of the secondary nickel sheet (202) are both provided with U-shaped small bending areas (203), and the rear end of the main nickel sheet (1) is provided with a laser welding end (204), and the laser welding end (204) and the main nickel sheet (1) are an integrated structure.

2. The deformation-resistant nickel sheet for CCS according to claim 1, characterized in that, The front surface of the secondary nickel sheet (202) is provided with a welding through hole (205), and the inner end of the welding through hole (205) is filled with nickel alloy.

3. The deformation-resistant nickel sheet for CCS according to claim 1, characterized in that, Both the main nickel sheet (1) and the secondary nickel sheet (202) have hollow internal structures, and both the main nickel sheet (1) and the secondary nickel sheet (202) are equipped with stainless steel protective plates (3).

4. The deformation-resistant nickel sheet for CCS according to claim 3, characterized in that, The stainless steel protective plate (3) is provided with a nickel alloy support sleeve (4) on its outer surface, and the stainless steel protective plate (3) is an integrally formed structure.

5. A deformation-resistant nickel sheet for CCS according to claim 4, characterized in that, The nickel alloy support sleeve (4) is fitted with a galvanized protective sleeve (5) on the outside, and a tin-plated protective sleeve (6) is provided on the outer surface of the galvanized protective sleeve (5).

6. The deformation-resistant nickel sheet for CCS according to claim 1, characterized in that, Both the main nickel sheet (1) and the secondary nickel sheet (202) are nickel alloy structures, and both the main nickel sheet (1) and the secondary nickel sheet (202) are provided with a hydrophobic wear layer (7).

7. A deformation-resistant nickel sheet for CCS according to claim 6, characterized in that, The hydrophobic wear layer (7), main nickel sheet (1), tin-plated protective sleeve (6), galvanized protective sleeve (5), nickel alloy support sleeve (4) and stainless steel protective plate (3) are arranged sequentially from the outside to the inside, and the tin-plated protective sleeve (6), galvanized protective sleeve (5) and nickel alloy support sleeve (4) are all welded together.

8. The deformation-resistant nickel sheet for CCS according to claim 1, characterized in that, The secondary nickel sheet (202) is an integrated structure, and the rear end of the secondary nickel sheet (202) is welded to the front end of the large bending area (201).

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