FPC type CCS, energy storage device and ship

Abstract

The utility model relates to the field of battery cell energy storage, in particular to an FPC type CCS which comprises an isolation plate, a flexible circuit board is arranged on the isolation plate, a plurality of aluminum bar assemblies are arranged on one side of the flexible circuit board, the aluminum bar assemblies are connected with the upper end face of the isolation plate, and the aluminum bar assemblies are connected with the upper end face of the isolation plate. The distance from the flexible circuit board to the middle line of the isolation plate is longer than the distance from the aluminum bar assembly to the middle line of the isolation plate, so that the flexible circuit board can avoid the place with the maximum deformation degree when the battery cell expands, and the flexible circuit board cannot be greatly influenced after the battery cell expands; the risk of damage to the flexible circuit board is reduced, and the service life of the flexible circuit board is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of battery core energy storage, in particular to an FPC type CCS, an energy storage device and a ship thereof. Background Art

[0002] Inside the battery pack, the component that realizes the connection of the battery cells and the sampling of voltage and temperature is called CCS. At present, there are five types of CCS: harness type, FPC type, PCB type, FFC type and FDC type. The traditional harness type CCS is low in cost and mature in technology. In order to save costs, the harness type CCS has low space utilization and cannot be operated automatically. It requires manual welding and dispensing during the production process, with poor consistency and no overcurrent fuse protection mechanism, which poses certain risks. Therefore, although the use of harness type CCS can save costs, once a failure occurs, the impact will bring huge economic losses, and the traditional energy storage system will encounter the impact of the environment when its carrier moves. Therefore, a more reliable CCS is needed to ensure the normal operation of the electrical system and the safety of the ship. The FPC type CCS has stable performance and strong environmental tolerance. Even in a relatively harsh environment, it can well realize the real-time temperature and voltage collection of the battery cells inside the energy storage system, thereby ensuring the normal operation of the energy storage system and the safety of the carrier and personnel. However, the traditional FPC-type CCS usually places the FPC in the middle of the battery cell (on both sides of the explosion-proof valve) to collect signals. When the battery cell expands, the FPC is easily affected and deformed, thereby increasing the chance of damage to the FPC and affecting the signal collection structure. Utility Model Content

[0003] The purpose of the utility model is to provide an FPC type CCS, an energy storage device and a ship thereof to solve the problem that the FPC in the prior art is arranged in the middle of the battery cell, and the expansion of the battery cell causes the FPC to deform, thereby making the FPC inaccurate in collecting the battery cell signal.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An FPC type CCS includes an isolation plate, a flexible circuit board is provided on the isolation plate, a plurality of aluminum bar components are provided on one side of the flexible circuit board, the aluminum bar components are connected to the upper end surface of the isolation plate, and the distance from the flexible circuit board to the center line of the isolation plate is longer than the distance from the aluminum bar components to the center line of the isolation plate.

[0006] The utility model discloses an FPC type CCS. A flexible circuit board (FPC) is arranged on one side of an aluminum bar component, and the flexible circuit board is arranged at an end away from the center line of an isolation plate, so that the flexible circuit board can avoid the place where the deformation degree is the largest when the battery cell expands, so that the flexible circuit board will not be greatly affected after the battery cell expands, thereby reducing the risk of damage to the flexible circuit board and extending the life of the flexible circuit board.

[0007] As a preferred embodiment of the present invention, the aluminum bar assembly is located on the upper end surface of the isolation plate, and the aluminum bar assembly includes output pole aluminum bars, which are arranged at both ends of the isolation plate in the length direction and are arranged symmetrically along the central axis, serving as an interface for external input or output.

[0008] As a preferred embodiment of the present invention, the aluminum bar assembly includes a connecting aluminum bar group, which is arranged at one end of the output pole aluminum bar. The connecting aluminum bar group includes a plurality of connecting aluminum bars, and each of the connecting aluminum bars is connected to two adjacent battery cells, and the battery cells are connected in series or in parallel through the connecting aluminum bar group.

[0009] As a preferred solution of the utility model, an isolation bracket is provided between each adjacent connecting aluminum bar, and the isolation bracket plays the role of insulation and support, and the isolation bracket is connected to the isolation plate.

[0010] As a preferred solution of the present utility model, the isolation plate and the isolation bracket are both insulating structural members, and the isolation plate and the isolation bracket are an integral structure.

[0011] As a preferred solution of the utility model, the connecting aluminum bar group and the output pole aluminum bar are respectively connected to the isolation plate by hot riveting, so that the connection between each aluminum bar and the isolation plate is tighter.

[0012] As a preferred solution of the utility model, a nickel sheet is provided between the flexible circuit board and the connecting aluminum bar group, and the lines of the flexible circuit board can be connected to each aluminum bar through the nickel sheet to realize signal transmission.

[0013] As a preferred solution of the utility model, a connector is further provided at the lower end of the isolation plate for outputting voltage signals and temperature signals to the outside.

[0014] An energy storage device comprises the above-mentioned FPC type CCS, wherein a battery core assembly is provided at the lower end of the FPC type CCS.

[0015] The utility model is an energy storage device, which reduces the influence of the expansion of the battery cell on the flexible circuit board by arranging the flexible circuit board on the FPC type CCS to avoid the place where the deformation degree is the largest when the battery cell below expands, and avoids the flexible circuit board being damaged due to excessive deformation of the flexible circuit board caused by the expansion of the battery cell, thereby making the flexible circuit board collect battery cell data more accurately.

[0016] A ship comprises the above-mentioned energy storage device, wherein the aluminum bar assembly comprises a connecting aluminum bar group, the connecting aluminum bar group is arranged at one end of the output pole aluminum bar, the connecting aluminum bar group comprises a plurality of connecting aluminum bars, and each of the connecting aluminum bars is connected to two adjacent battery cells.

[0017] The utility model is a ship, which improves the stability and safety of the ship's travel by arranging an FPC type CCS in the ship, can adapt to the harsh environment during the ship's travel, and the flexible circuit board (FPC) in the FPC type CCS is not arranged on both sides of the battery cell explosion-proof valve, so that when the ship encounters a harsh environment during the travel, the battery cell expands and does not cause excessive deformation of the flexible circuit board, thereby improving the life of the flexible circuit board and facilitating the signal transmission of the energy storage system in the ship.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] 1. The utility model is an FPC type CCS, in which a flexible circuit board (FPC) is arranged on one side of the aluminum bar component, and the flexible circuit board is arranged at one end away from the center line of the isolation plate, so that the flexible circuit board can avoid the position where the deformation degree is the largest when the battery cell expands, so that the flexible circuit board will not be greatly affected after the battery cell expands, thereby reducing the risk of damage to the flexible circuit board and extending the life of the flexible circuit board.

[0020] 2. The utility model is an energy storage device. By setting the flexible circuit board on the FPC type CCS to avoid the place where the deformation is the largest when the battery cell below expands, the impact of the battery cell expansion on the flexible circuit board is reduced, and the flexible circuit board is prevented from being excessively deformed by the battery cell expansion, resulting in damage to the flexible circuit board, thereby making the flexible circuit board more accurate in collecting battery cell data.

[0021] 3. The utility model is a ship, which improves the stability and safety of the ship's travel by arranging an FPC-type CCS in the ship, and can adapt to the harsh environment during the ship's travel. The flexible circuit board (FPC) in the FPC-type CCS is not hot-riveted on both sides of the battery cell explosion-proof valve, so that when the ship encounters a harsh environment during travel and causes the battery cell to expand, it will not cause excessive deformation of the flexible circuit board, thereby increasing the life of the flexible circuit board and facilitating the signal transmission of the energy storage system in the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 yes Figure 1 Schematic diagram of the local method at A in the middle;

[0024] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0025] Icons: 1-isolation board; 2-flexible circuit board; 3-aluminum bar assembly; 31-output pole aluminum bar; 32-connecting aluminum bar group; 321-connecting aluminum bar; 4-connector; 5-nickel sheet; 6-isolation bracket. DETAILED DESCRIPTION

[0026] The utility model is described in detail below in conjunction with the accompanying drawings.

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] Example 1

[0029] like Figure 1 An FPC-type CCS shown includes an isolation plate 1 for supporting and carrying subsequent components, and a plurality of aluminum bar assemblies 3 are provided on the upper end surface of the isolation plate 1, through which the battery cells are connected and the signals of the battery cells are transmitted, and a flexible circuit board 2 (FPC) is also provided on the isolation plate 1, and the flexible circuit board 2 is arranged on the side of the aluminum bar assembly 3 away from the center line of the isolation plate 1. The flexible circuit board 2 is arranged on the side of the aluminum bar assembly 3 away from the center line of the isolation plate 1, so that the flexible circuit board 2 is away from the place where the deformation degree is the largest when the battery cell expands, so that when the ship encounters environmental influences such as moisture, corrosion and vibration that cause the battery cell to expand, the flexible circuit board 2 will not be damaged, thereby extending the service life of the flexible circuit board 2, and there will be no situation where the acquisition error of the entire CCS signal is too large due to damage to the flexible circuit board 2.

[0030] As mentioned above, the aluminum bar assembly 3 includes an output pole aluminum bar 31 as an external input or output interface, and two output pole aluminum bars 31 are provided, and the output pole aluminum bars 31 are arranged at both ends of the isolation plate 1 in the length direction and the arrangement positions are arranged symmetrically with the central axis, and the output or input current is carried out through the output pole aluminum bars 31;

[0031] Furthermore, a connecting aluminum bar group 32 is provided at one end of each output pole aluminum bar 31, and the connecting aluminum bar group 32 is also arranged on the isolation plate 1, and the connection relationship between subsequent battery cells is realized by connecting the aluminum bar group 32, and each connecting aluminum bar group 32 is composed of a plurality of connecting aluminum bars 321;

[0032] Furthermore, an isolation bracket 6 is provided between adjacent connection aluminum bars 321 in each connection aluminum bar group 32, and the isolation bracket 6 supports the entire connection aluminum bar group 32. Figure 1 and Figure 3 shown.

[0033] As mentioned above, the isolation bracket 6 and the isolation plate 1 are both insulating structural members to avoid circuit damage.

[0034] As mentioned above, the connecting aluminum bar group 32 is connected to one side of the flexible circuit board 2, and the connecting aluminum bar group 32 and the flexible circuit board 2 are connected through the nickel sheet 5, and the flexible circuit board 2 is connected to each connecting aluminum bar 321 on the connecting aluminum bar group 32 through the nickel sheet 5 to realize the transmission of subsequent signals, such as Figure 2 shown.

[0035] As mentioned above, the lower end of the isolation plate 1 is provided with a connector 4, through which the CCS can output voltage signals and temperature signals to the outside. Figure 1 shown.

[0036] As mentioned above, the aluminum bar group 32 and the isolation plate 1 are connected by hot riveting, so that the connection is tighter.

[0037] Example 2

[0038] An energy storage device includes an FPC-type CCS in Example 1, wherein a battery cell assembly is provided at the lower end of the FPC-type CCS.

[0039] Example 3

[0040] A ship comprises an energy storage device in Example 2, wherein the energy storage device uses the FPC type CCS, and the flexible circuit board 2 in the FPC type CCS is arranged away from the place where the deformation degree is the largest when the battery core expands.

[0041] Example 4

[0042] This embodiment 4 is the working principle of the energy storage device of the ship in embodiment 3: when the ship is sailing, the battery system will be charged to store electrical energy for backup. When the battery is charged, lithium ions will move from the positive electrode (cathode) to the negative electrode (anode) and embed into the structure of the negative electrode. This process will cause the volume of the battery to change, and the expansion in the battery will increase as the battery is charged and discharged. This is because the embedding and extraction of lithium ions between the positive and negative electrodes causes the interface to continuously produce SEI film and cause the volume of the battery to change. The positive and negative electrode materials used in the battery are generally composed of granular active substances, and the embedding and extraction of lithium ions will cause the expansion and contraction of these particles. The volume expansion of the battery cell may cause mechanical stress on the flexible circuit board. When the battery cell expands, the surrounding structures, including the battery casing and the battery support structure, may exert force on the flexible circuit board 2. This may cause the flexible circuit board 2 to stretch, compress or bend, and the explosion-proof valve of the flexible circuit board 2 away from the battery cell is set on one side of the aluminum bar assembly 3, which can avoid the impact of the battery cell expansion on the flexible circuit board 2 (FPC).

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An FPC type CCS, characterized in that: The invention comprises an isolation plate (1), wherein a flexible circuit board (2) is arranged on the isolation plate (1), and a plurality of aluminum bar components (3) are arranged on one side of the flexible circuit board (2), wherein the aluminum bar components (3) are connected to the upper end surface of the isolation plate (1), and the distance from the flexible circuit board (2) to the center line of the isolation plate (1) is longer than the distance from the aluminum bar components (3) to the center line of the isolation plate (1).

2. The FPC type CCS according to claim 1, characterized in that: The aluminum bar assembly (3) is located on the upper end surface of the isolation plate (1), and the aluminum bar assembly (3) includes an output pole aluminum bar (31). The output pole aluminum bar (31) is arranged at both ends of the isolation plate (1) in the length direction, and the arrangement position is symmetrical with respect to the central axis.

3. The FPC type CCS according to claim 2, characterized in that: The aluminum bar assembly (3) comprises a connecting aluminum bar group (32), wherein the connecting aluminum bar group (32) is arranged at one end of the output pole aluminum bar (31), the connecting aluminum bar group (32) comprises a plurality of connecting aluminum bars (321), and each of the connecting aluminum bars (321) is connected to two adjacent battery cells.

4. The FPC type CCS according to claim 3, characterized in that: An isolation bracket (6) is provided between adjacent connecting aluminum bars (321) in each connecting aluminum bar group (32), and the isolation bracket (6) is connected to the isolation plate (1).

5. The FPC type CCS according to claim 4, characterized in that: The isolation plate (1) and the isolation bracket (6) are both insulating structural parts, and the isolation plate (1) and the isolation bracket (6) are an integral structure.

6. An FPC type CCS according to any one of claims 3 to 5, characterized in that: The connecting aluminum bar group (32) and the output pole aluminum bar (31) are both connected to the isolation plate (1) by heat riveting.

7. The FPC type CCS according to claim 6, characterized in that: A nickel sheet (5) is provided between the flexible circuit board (2) and the connecting aluminum bar group (32).

8. The FPC type CCS according to claim 7, characterized in that: A connector (4) is also provided at the lower end of the isolation plate (1).

9. An energy storage device, characterized in that: It comprises an FPC type CCS as described in any one of claims 1 to 8, wherein a battery core assembly is provided at the lower end of the FPC type CCS.

10. A ship, characterized in that: It comprises an energy storage device as claimed in claim 9, wherein the energy storage device is applied in the ship, the energy storage device applies the FPC type CCS, and the flexible circuit board (2) in the FPC type CCS is arranged away from the place where the deformation degree is the largest when the battery core expands.

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