A CCS module

Abstract

The utility model relates to a CCS module belongs to new energy battery connection technical field, including the case shell, is equipped with fire extinguishing subassembly and CCS plastic film in the shell, and fire extinguishing subassembly contains fixed ring, fire extinguishs jar and sprayer, and CCS plastic film sets up positive pole aluminium sheet, CCS FPC circuit, two kinds of connection aluminium sheet, and the connection aluminium sheet is welded through small nickel sheet and circuit, the detachable cover plate has in the shell top, installs control screen and is connected with circuit electric connection, and this module guarantees current stable conduction through integrated circuit design, built -in fire extinguishing subassembly responds to the fire situation quickly, and the detachable cover plate is convenient for maintenance, and integrated control function does not need extra module. Can promote power supply reliability and safety, reduce maintenance cost, adapt to new energy automobile, energy storage equipment and the like scene.

Description

Technical Field

[0001] This utility model belongs to the field of new energy battery connection technology, specifically relating to a CCS module. Background Technology

[0002] In fields such as new energy vehicles and energy storage power stations, the CCS (Cell Contact System) is a core component of battery modules, undertaking critical functions such as current conduction between cells, signal acquisition, and circuit protection. Its performance directly affects the safety and stability of the battery system. However, existing CCS technology has gradually revealed multiple defects in practical applications, making it difficult to meet the requirements of high power and high safety.

[0003] Existing CCS components generally lack independent safety protection devices, relying instead on the overall fire suppression system of the battery pack for protection. This presents two major limitations: First, delayed response. When a fire breaks out inside the CCS (such as connecting aluminum sheets or wiring) due to a short circuit or overheating, the external fire suppression system must indirectly detect it through sensors within the battery pack, resulting in a response delay often exceeding 3 seconds, missing the initial fire response window. Second, insufficient coverage. The spray range of external fire suppression devices cannot accurately cover the confined space inside the CCS, allowing the fire to easily spread along the wiring to the entire battery system. Especially in high-voltage, high-current energy storage scenarios, if a CCS fire is not controlled in time, it may trigger a chain reaction, causing a major safety accident. Therefore, those skilled in the art have provided a CCS module to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a CCS module with a simple structure and reasonable design in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A CCS module includes a chassis shell, and a fire extinguishing assembly is disposed inside the chassis shell. The fire extinguishing assembly includes a fixing ring fixedly connected to the chassis shell, a fire extinguishing canister is mounted on the fixing ring, and a nozzle is connected to the output end of the fire extinguishing canister.

[0007] The chassis shell also contains a CCS plastic film. Positive and negative aluminum plates are provided on both sides of the upper end of the side wall of the CCS plastic film. CCS-FPC lines electrically connected to the positive and negative aluminum plates are provided on the upper and lower ends of one side of the CCS plastic film. Several first connecting aluminum plates are provided on the side wall of the CCS plastic film between two CCS-FPC lines. Several second connecting aluminum plates are provided on one side of the CCS plastic film respectively at the upper and lower ends of two CCS-FPC lines. Each first connecting aluminum plate and each second connecting aluminum plate are electrically connected to the corresponding CCS-FPC line through a small nickel plate.

[0008] As a further optimization of this utility model, a top cover is provided on the top of the chassis shell, and a control panel is installed on the chassis shell. The control panel is electrically connected to the CCS-FPC circuit to realize the control function of the module.

[0009] As a further optimization of this utility model, the spray range of the nozzle covers the components inside the casing.

[0010] As a further optimization of this utility model, the first connecting aluminum sheet and the second connecting aluminum sheet are firmly connected to the CCS plastic film by welding.

[0011] As a further optimization of this utility model, the small nickel sheet is connected to the CCS-FPC circuit by welding.

[0012] As a further optimization of this utility model, the top cover plate is detachably connected to the chassis shell by bolts.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model constructs an active protection system through built-in fire extinguishing components: the fire extinguishing tank is installed inside the chassis shell by a fixing ring, and the spray range of the nozzle covers all CCS-related components. With the real-time monitoring of the control panel, the fire extinguishing can be activated within seconds after a fire is triggered, quickly suppressing the initial fire; moreover, the fire extinguishing components are integrated with the module design, without occupying additional external space. Compared with the existing "external fire extinguishing + CCS separation" solution, it greatly reduces the risk of fire.

[0015] 2. This utility model optimizes the circuit connection through "small nickel sheet + welding fixation": the first connecting aluminum sheet and the second connecting aluminum sheet are both welded to the CCS-FPC circuit through small nickel sheets, the welding point has low resistance and is resistant to oxidation; at the same time, the CCS plastic film serves as the circuit carrier, insulating and wrapping the positive and negative aluminum sheets, CCS-FPC circuit and connecting aluminum sheets to form an integrated layout, avoiding signal interference caused by messy circuits, ensuring stable current and control signal transmission, and adapting to the high power supply accuracy requirements of new energy equipment. Attached Figure Description

[0016] Figure 1 This is a partial cross-sectional view of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a structural schematic diagram of the fire extinguishing component of this utility model;

[0019] Figure 4This is a structural schematic diagram of the CCS module of this utility model;

[0020] Figure 5 This is a utility model Figure 1 A magnified structural diagram of point A in the middle.

[0021] In the diagram: 1. Chassis shell; 2. Control panel; 3. Top cover; 4. Fire extinguishing assembly; 401. Fixing ring; 402. Fire extinguishing canister; 403. Nozzle; 5. Positive and negative aluminum plates; 6. CCS-FPC circuit; 7. First connecting aluminum plate; 8. Second connecting aluminum plate; 9. CCs plastic film; 10. Small nickel plate. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Example 1

[0024] like Figure 2 As shown, a CCS module has a top cover 3 on the top of the chassis shell 1. The top cover 3 is connected to the chassis shell 1 by bolts. During subsequent maintenance, the bolts can be unscrewed to open the cover for easy inspection of internal components. A control panel 2 is installed on the chassis shell 1. The control panel 2 is used to realize control functions such as starting and stopping the module, monitoring parameters and alarming abnormalities, and provides a visual operation and monitoring interface for the module operation.

[0025] like Figure 1 , Figure 4 and Figure 5 As shown, the core circuit connection components inside the chassis shell 1 use CCS plastic film 9 as a carrier: positive and negative aluminum sheets 5 are provided on both sides of the upper end of the side wall of CCS plastic film 9, serving as the current input and output terminals of the module; CCS-FPC lines 6 are provided on the upper and lower ends of one side of CCS plastic film 9, and CCS-FPC lines 6 are electrically connected to the positive and negative aluminum sheets 5. The control panel 2 is also electrically connected to CCS-FPC lines 6, and the transmission of control signals and current is realized through CCS-FPC lines 6. At the same time, several first connecting aluminum sheets 7 are provided on the side wall of CCS plastic film 9 between two CCS-FPC lines 6, and several second connecting aluminum sheets 8 are provided on one side respectively at the upper and lower ends of two CCS-FPC lines 6. The first connecting aluminum sheets 7 and the second connecting aluminum sheets 8 are firmly connected to CCS plastic film 9 by welding, and are used to connect external battery units or load components.

[0026] To ensure the stability and conductivity of the circuit connection, each of the first connecting aluminum sheet 7 and the second connecting aluminum sheet 8 is electrically connected to the corresponding CCS-FPC line 6 through a small nickel sheet 10. The small nickel sheet 10 is connected to the CCS-FPC line 6 by welding. The welding process can ensure low resistance and high firmness of the connection point, avoid current loss or heat generation problems caused by poor contact, and achieve stable current conduction.

[0027] like Figure 1 and Figure 3 As shown, a fire extinguishing assembly 4 is also installed inside the chassis shell 1. The fire extinguishing assembly 4 includes a fixing ring 401, a fire extinguishing tank 402, and a nozzle 403. The fire extinguishing tank 402 is fixed inside the chassis shell 1 by the fixing ring 401. The nozzle 403 is connected to the fire extinguishing tank 402, and the spray range of the nozzle 403 covers CCS-related components inside the chassis shell 1, such as CCS plastic film 9 and positive and negative electrode aluminum sheets 5. When the control panel 2 detects a fire risk such as overheating or short circuit inside the module, it can trigger the fire extinguishing assembly 4. The fire extinguishing medium in the fire extinguishing tank 402 is sprayed evenly through the nozzle 403 to quickly extinguish the initial fire and ensure the safety of the module and surrounding equipment.

[0028] It should be noted that, in use, the positive and negative aluminum plates 5 serve as current input / output terminals, receiving electrical energy from external battery cells or outputting current to the load. The current is conducted and distributed through the flexible printed circuit of the CCS-FPC line 6, which is electrically connected to the positive and negative aluminum plates 5. At this time, the first connecting aluminum plate 7 and the second connecting aluminum plate 8 on the CCS plastic film 9 are fixed to the plastic film by welding and connected to the main circuit by small nickel plates 10 welded to the CCS-FPC line 6, forming a branch circuit. The first connecting aluminum plate 7 and the second connecting aluminum plate 8 are respectively connected to different battery cells or external devices to achieve precise distribution and transmission of electrical energy. The welding connection of the small nickel plates 10 ensures low resistance conduction, avoids current loss or local heating, and ensures energy transmission efficiency.

[0029] Control panel 2, through its electrical connection with CCS-FPC line 6, collects module operating parameters in real time: on the one hand, it monitors the voltage and current values ​​of the positive and negative aluminum plates 5 and the conduction state of each connected aluminum plate to determine whether the power transmission is stable; on the other hand, it indirectly monitors the circuit heating through the temperature signal fed back by the line to assess the module's operational safety. When parameters are abnormal, such as excessive voltage or current overload, control panel 2 automatically issues an alarm signal and can send control commands through CCS-FPC line 6 to cut off some branch circuits or adjust the current output to prevent the fault from escalating and achieve dynamic control of the module's operating status.

[0030] As the core of passive safety protection, the fire extinguishing component 4 forms a linkage mechanism with the control panel 2: when the control panel 2 detects fire precursors such as short circuits or sudden temperature rises, or when an external sensor triggers a fire alarm signal, the fire extinguishing component 4 is immediately activated. The fire extinguishing tank 402, fixed by the fixing ring 401, releases the extinguishing medium, such as gaseous extinguishing agent, which is evenly sprayed through the nozzle 403. Since the spray range of the nozzle 403 covers all CCS-related components, such as CCS plastic film 9, connecting aluminum sheets, and wiring, inside the chassis shell 1, it can quickly suppress the initial fire and block the spread of flames. At the same time, the bolt connection design between the top cover 3 and the chassis shell 1 allows for quick disassembly in emergency situations, facilitating manual intervention and further improving the reliability of safety protection.

[0031] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A CCS module, comprising a chassis housing (1), characterized in that: The fire extinguishing assembly (4) is provided inside the chassis shell (1). The fire extinguishing assembly (4) includes a fixing ring (401) fixedly connected to the chassis shell (1). A fire extinguishing canister (402) is installed on the fixing ring (401). A nozzle (403) is connected to the output end of the fire extinguishing canister (402). The chassis shell (1) is also provided with a CCS plastic film (9). Positive and negative aluminum sheets (5) are provided on both sides of the upper end of the side wall of the CCS plastic film (9). CCS-FPC lines (6) electrically connected to the positive and negative aluminum sheets (5) are provided on the upper and lower ends of one side of the CCS plastic film (9). Several first connecting aluminum sheets (7) are provided on the side wall of the CCS plastic film (9) between two CCS-FPC lines (6). Several second connecting aluminum sheets (8) are provided on one side of the CCS plastic film (9) respectively located at the upper and lower ends of two CCS-FPC lines (6). Each first connecting aluminum sheet (7) and second connecting aluminum sheet (8) is electrically connected to the corresponding CCS-FPC line (6) through a small nickel sheet (10).

2. A CCS module according to claim 1, characterized in that: The top of the chassis shell (1) is provided with a top cover plate (3), and a control panel (2) is installed on the chassis shell (1). The control panel (2) is electrically connected to the CCS-FPC line (6).

3. A CCS module according to claim 2, characterized in that: The spray range of the nozzle (403) covers the components inside the casing (1).

4. A CCS module according to claim 3, characterized in that: The first connecting aluminum sheet (7) and the second connecting aluminum sheet (8) are firmly connected to the CCS plastic film (9) by welding.

5. A CCS module according to claim 4, characterized in that: The small nickel sheet (10) is connected to the CCS-FPC circuit (6) by welding.

6. A CCS module according to claim 2, characterized in that: The top cover (3) is detachably connected to the chassis shell (1) by bolts.

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