Battery module rapid parallel connection device suitable for echelon utilization

Abstract

The invention discloses a battery module quick parallel connection device suitable for echelon utilization, which comprises a mounting box body, a battery module placing groove is arranged at the top of the mounting box body, electrode contact placing grooves are arranged on two sides of the groove, and an isolation protective cover is arranged. A movable conductive block is slidably connected between the conductive sliding plates in the electrode contact placing groove and is driven by a push rod-push plate structure to be attached to a battery electrode end, the conductive sliding plates are connected through a conductive plate and externally connected with an electrode contact, and a detachable sealing cover plate is arranged at the top of each conductive sliding plate. By rotating the push rod, the device can adapt to abrasion of the electrode ends of the battery modules, the problem of poor contact is solved, and rapid parallel connection is achieved; the isolation protective cover and the sealing cover plate form dual protection to guarantee safety and stability of the system; and the modular design can adapt to battery modules of different specifications, so that diversified requirements are met, and the performance and the installation efficiency of the battery system are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery module parallel connection, and in particular to a battery module rapid parallel connection device suitable for cascade utilization. Background Art

[0002] Against the backdrop of global advocacy for sustainable development and green energy transition, the new energy industry has ushered in an unprecedented period of rapid development. Lithium-ion batteries, with their high energy density and long cycle life, have been widely used in electric vehicles, energy storage power stations, and other fields. With the large-scale deployment of new energy equipment, a large number of retired battery modules have been generated. Reusing these retired battery modules in applications with relatively low performance requirements, such as low-speed electric vehicles and home energy storage, not only reduces resource waste but also effectively reduces environmental pollution, offering significant economic and environmental benefits. Consequently, these recycled battery modules have been widely used in recent years.

[0003] However, retired battery modules inevitably experience varying degrees of wear on their electrode tips during long-term use. This wear is primarily caused by factors such as frequent charge and discharge cycles, mechanical vibration, and aging of the electrode materials. When these worn-out battery modules are placed in a uniformly designed parallel enclosure, poor contact is very likely to occur. This poor contact can lead to a range of serious consequences. On the one hand, it can cause uneven current distribution between battery modules, impacting their normal operation and significantly reducing the overall performance of the battery system, such as accelerated battery capacity decay and decreased charge and discharge efficiency. On the other hand, poor contact can also cause localized overheating and even sparks, seriously threatening the safety of the battery system and posing the potential risk of major safety incidents such as fire and explosion.

[0004] Most of the battery module parallel connection devices currently available on the market are designed for brand-new battery modules. Their structures and connection methods make it difficult to effectively address the poor contact caused by electrode wear. While some devices have a certain degree of adaptability, they still have many deficiencies in terms of installation ease, connection stability, and protective performance, and cannot meet the practical needs of stable parallel connection of used battery modules. Therefore, the development of a device that can effectively address the poor contact problem caused by electrode wear in used battery modules and achieve rapid and stable parallel connection has become a critical issue that needs to be addressed in this field. Summary of the Invention

[0005] The purpose of the present invention is to provide a fast parallel connection device for battery modules suitable for cascade utilization, so as to solve the problem of poor contact in the parallel box due to wear of the electrode ends of the battery modules used in cascade utilization, realize fast and stable parallel connection of battery modules, and improve the overall performance and safety of the battery system.

[0006] To achieve the above objectives, the present invention adopts the following technical means:

[0007] The battery module quick parallel connection device adapted for cascade utilization comprises an installation box body, the top of the installation box body is provided with a plurality of groups of battery module placement slots distributed at equal distances, and the two sides of the battery module placement slots in the length direction are respectively provided with electrode contact placement slots that penetrate the installation box body, and the outer openings of the electrode contact placement slots are provided with isolation protective covers connected to the installation box body, and the corresponding two sides in the electrode contact placement slots are respectively connected with conductive slides, and a movable conductive block is slidably connected between the two groups of conductive slides, and the movable conductive block is connected to a push plate in abutment with the side away from the battery module placement slot, and the push plate is rotatably connected to the side away from the movable conductive block, and the end of the push rod away from the push plate passes through the isolation protective cover and is threadedly plugged into the isolation protective cover, and two adjacent groups of conductive slides located on the same side and not belonging to the same electrode contact placement slot are connected by a conductive plate, and a group of the conductive slides located at the end is connected to the electrode connector arranged on the outside of the installation box body through the conductive plate, and the top of the battery module placement slot is provided with a sealing cover plate detachably connected to the installation box body.

[0008] Preferably, the installation box body is connected to the sealing cover plate via fixing screws.

[0009] Preferably, a sealing gasket frame is provided at the connection between the installation box body and the sealing cover plate.

[0010] Preferably, the electrode connector, conductive plate, conductive slide plate and movable conductive block are all made of copper.

[0011] Preferably, the inner side of the isolation protective cover is connected to a sealing ring which is sleeved on the outer side of the push rod.

[0012] Preferably, corresponding sides of the two groups of conductive slides are respectively provided with sliding grooves, and both sides of the movable conductive block between the two groups of conductive slides are respectively connected with movable conductive sliders that are slidably plugged into the corresponding sliding grooves.

[0013] Preferably, the movable conductive block and the movable conductive slider are manufactured integrally.

[0014] Preferably, the push plate is an insulating product.

[0015] Preferably, the push rod portion is made of stainless steel.

[0016] The present invention has the following beneficial effects:

[0017] 1. Accurately resolve poor contact and improve system performance: This device utilizes a push rod-push plate-moving conductive block linkage structure to achieve a tight fit between the conductive components and the battery electrode terminals. By rotating the push rod and using a threaded drive to push the movable conductive block, it can adapt to the wear of the battery module electrode terminals, effectively reducing contact resistance and ensuring uniform current distribution between battery modules. This significantly improves the battery system's charge and discharge efficiency, slows battery capacity degradation, and enhances the overall performance of the battery system.

[0018] 2. Easy operation and improved installation efficiency: Abandoning the complex installation process of traditional parallel devices, this device simplifies the parallel operation to a simple action of turning a push rod. Without the need for specialized tools and skills, workers can easily complete the installation of battery modules, significantly improving installation efficiency, effectively reducing labor costs, and shortening installation time.

[0019] 3. Multiple protection designs ensure system safety and stability: The isolation shield and sealing cover form a dual protection system. The isolation shield prevents external debris from entering the device, preventing the risk of short circuits. The sealing cover closely matches the battery module placement slot to form a sealed space, preventing moisture intrusion that affects battery performance. This effectively ensures the stable operation of the battery system in complex environments, extends its service life, and reduces the probability of safety accidents.

[0020] 4. Flexible adaptation to meet diverse needs: Multiple groups of equally spaced and customizable battery module placement slots, as well as the modular design of conductive slides, conductive plates and other components, enable this device to adapt to cascade utilization battery modules of different shapes, structures and specifications. Regardless of the application scenario, stable parallel connection can be achieved, and later expansion and upgrading are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the structural decomposition of the present invention;

[0023] Figure 3 is a cross-sectional view of the installation box body of the present invention;

[0024] Figure 4 This invention Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 This invention Figure 3 Enlarged view of point B in the middle;

[0026] Wherein, the reference numerals:

[0027] Install the box body 1, battery module placement slot 2, electrode contact placement slot 3, electrode connector 4, isolation protective cover 5, conductive plate 6, slide slot 7, conductive slide plate 8, push plate 9, push rod 10, sealing ring 11, movable conductive block 12, movable conductive slider 13, sealing cover plate 14, and sealing gasket frame 15. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] Example 1

[0030] like Figure 1-5 As shown, a battery module rapid parallel connection device adapted to cascade utilization includes a mounting box body 1, a top of the mounting box body 1 is provided with multiple groups of battery module placement slots 2 distributed at equal distances, the battery module placement slots 2 are provided with electrode contact placement slots 3 penetrating the mounting box body 1 on both sides of the length direction, the outer openings of the electrode contact placement slots 3 are provided with isolation protective covers 5 connected to the mounting box body 1, the corresponding two sides of the electrode contact placement slots 3 are connected to conductive slides 8, a movable conductive block 12 is slidably connected between the two groups of conductive slides 8, and the movable conductive block 12 is away from the battery module. The side of the group placement groove 2 is in contact with a push plate 9, and the side of the push plate 9 away from the movable conductive block 12 is rotatably connected to a push rod 10. The end of the push rod 10 away from the push plate 9 passes through the isolation protective cover 5 and is threadedly plugged into the isolation protective cover 5. Two groups of adjacent conductive slides 8 located on the same side and not belonging to the same electrode contact placement groove 3 are connected through a conductive plate 6. A group of conductive slides 8 located at the end is connected to an electrode connector 4 arranged on the outside of the installation box body 1 through the conductive plate 6. The top of the battery module placement groove 2 is provided with a sealing cover plate 14 that is detachably connected to the installation box body 1.

[0031] How it works

[0032] During the installation phase, the sealing cover 14 at the top of the battery module placement slot 2 is first opened, and the battery modules to be recycled are placed in the corresponding battery module placement slot 2. The battery module placement slot 2 is set at the top of the installation box body 1. The design of multiple groups of equidistantly distributed battery modules facilitates unified management and installation of multiple battery modules.

[0033] Next, the conductive connection is established. The electrode contact placement groove 3 passes through the installation box 1 on both sides of the length direction in the battery module placement groove 2, providing a channel for the conductive connection. The isolation protective cover 5 on the outer side of the electrode contact placement groove 3 plays a protective role in the conductive connection process to avoid external interference. Rotate the push rod 10. Since the push rod 10 is threadedly plugged into the isolation protective cover 5, according to the principle of thread transmission, the push rod 10 will move along the axial direction. The push rod 10 is rotatably connected to the push plate 9, and the movement of the push rod 10 will push the push plate 9. The push plate 9 is in contact with the movable conductive block 12, thereby driving the movable conductive block 12 to slide on the conductive slide 8. The conductive slide 8 is installed on the corresponding sides of the electrode contact placement groove 3, providing a sliding track for the movable conductive block 12 while assuming the conductive function. Pushed by the push plate 9, the movable conductive block 12 slides toward the electrode end of the battery module until it is in close contact with the electrode end of the battery module, thereby realizing the electrical connection between the battery module and the conductive circuit inside the device, effectively solving the poor contact problem caused by wear of the electrode end of the battery module.

[0034] To achieve overall parallel connection, two adjacent sets of conductive slides 8 located on the same side and not within the same electrode contact placement slot 3 are connected via a conductive plate 6. A set of conductive slides 8 located at the ends are connected via a conductive plate 6 to an electrode connector 4 located outside the mounting box 1. This connection method connects the individual battery modules in parallel via the movable conductive blocks 12, conductive slides 8, conductive plates 6, and electrode connectors 4 on both sides, allowing the battery module's electrical energy to be extracted from the device for use by external devices.

[0035] When the battery module needs to be removed, the push rod 10 is rotated in the opposite direction, which drives the push plate 9 to move in the opposite direction, separating the movable conductive block 12 from the electrode end of the battery module. The battery module can then be easily removed, making the operation convenient and efficient. Throughout the entire operation process, the sealing cover 14 can seal the battery module placement slot 2 after installation, and cooperate with the isolation protective cover 5 to provide a good protective environment for the battery module and internal conductive components, ensuring stable operation of the device.

[0036] Example 2

[0037] like Figure 1-5As shown, a battery module rapid parallel connection device adapted to cascade utilization includes a mounting box body 1, a top of the mounting box body 1 is provided with multiple groups of battery module placement slots 2 distributed at equal distances, the battery module placement slots 2 are provided with electrode contact placement slots 3 penetrating the mounting box body 1 on both sides of the length direction, the outer openings of the electrode contact placement slots 3 are provided with isolation protective covers 5 connected to the mounting box body 1, the corresponding two sides of the electrode contact placement slots 3 are connected to conductive slides 8, a movable conductive block 12 is slidably connected between the two groups of conductive slides 8, and the movable conductive block 12 is away from the battery module. The side of the group placement groove 2 is in contact with a push plate 9, and the side of the push plate 9 away from the movable conductive block 12 is rotatably connected to a push rod 10. The end of the push rod 10 away from the push plate 9 passes through the isolation protective cover 5 and is threadedly plugged into the isolation protective cover 5. Two groups of adjacent conductive slides 8 located on the same side and not belonging to the same electrode contact placement groove 3 are connected through a conductive plate 6. A group of conductive slides 8 located at the end is connected to an electrode connector 4 arranged on the outside of the installation box body 1 through the conductive plate 6. The top of the battery module placement groove 2 is provided with a sealing cover plate 14 that is detachably connected to the installation box body 1.

[0038] The mounting box body 1 is connected to the sealing cover plate 14 via fixing screws.

[0039] The advantages of the above setup are:

[0040] Installation and disassembly are convenient and efficient: the fixed wire connection method is simple and easy to understand. When installing the battery module, the staff can quickly unscrew the fixed wire to open the sealing cover 14 and place the battery module in the battery module placement slot 2; after the installation is completed, the sealing cover 14 can be quickly fixed to the installation box body 1 through the fixed wire, which greatly shortens the installation time and improves work efficiency; the same is true for disassembly, and the reverse operation can be performed, which facilitates the later inspection, replacement and other maintenance work of the battery module.

[0041] Stable and reliable connection: The fixing wire can provide stable and continuous fastening force, so that the sealing cover 14 fits tightly with the installation box body 1. During the transportation and use of the device, even if it is subjected to external forces such as vibration and shaking, the sealing cover 14 is not easy to loosen or fall off, ensuring the safety and stability of the battery modules and conductive components inside the device, and avoiding the risk of poor contact, short circuit and other faults caused by loose cover.

[0042] Good sealing and protective performance: The tight fixed connection can effectively prevent external dust, moisture, foreign matter, etc. from entering the interior of the installation box body 1. A good sealed space is formed between the sealing cover 14 and the installation box body 1, and the isolation protective cover 5 is used to provide more comprehensive protection for the battery module and conductive components, thereby extending the service life of the battery module and reducing performance degradation and safety hazards caused by environmental factors.

[0043] A sealing gasket frame 15 is provided at the connection between the mounting box body 1 and the sealing cover plate 14 .

[0044] The advantages of the above setup are:

[0045] Enhanced Sealing: The gasket frame 15 fills the tiny gap between the mounting box 1 and the sealing cover 14, creating a tighter seal. Whether exposed to humid air, fine dust particles, or other foreign matter that might intrude into the device, the gasket frame 15 effectively blocks these factors, preventing them from affecting the battery module and conductive components. This ensures a stable internal environment and prevents problems such as degradation of battery module performance or short circuits in conductive components caused by moisture and dust intrusion.

[0046] Improved protection: The sealing gasket frame 15 works in conjunction with the isolation shield 5 to further enhance the device's protective capabilities. In harsh operating environments, such as those with high humidity and high dust levels, the sealing gasket frame 15 effectively reduces the erosion of the battery module by adverse external factors, slowing down its aging and extending its service life. It also provides better protection for conductive components, ensuring safe and stable operation of the entire device.

[0047] Enhanced connection stability: The sealing gasket frame 15 has a certain degree of elasticity. When the fixing screws tighten the mounting box body 1 and the sealing cover plate 14, it can evenly distribute the pressure, avoiding localized excessive or insufficient force. This not only helps to improve the reliability of the fixed connection, but also provides a buffering effect when the device is subjected to external forces such as vibration and impact, reducing the relative displacement between the mounting box body 1 and the sealing cover plate 14, and preventing various failures caused by loose connections.

[0048] The electrode connector 4, the conductive plate 6, the conductive slide plate 8, and the movable conductive block 12 are all made of copper.

[0049] The advantages of the above setup are:

[0050] Excellent electrical conductivity: Copper has extremely high electrical conductivity, minimizing resistance during current transmission and reducing energy loss. In a parallel battery module configuration, this ensures efficient current transmission between the electrode connector 4, conductive plate 6, conductive slide 8, and movable conductive block 12, avoiding heating caused by excessive resistance, ensuring stable battery system operation, and improving overall energy conversion efficiency.

[0051] Excellent corrosion resistance: Copper is chemically stable under normal conditions, effectively resisting erosion by oxygen, moisture, and other corrosive substances in the air, reducing the risk of component oxidation and corrosion. Even in complex operating environments, the copper electrode connector 4, conductive plate 6, conductive slide 8, and movable conductive block 12 maintain excellent electrical conductivity and physical structure over time, reducing corrosion-induced faults such as poor contact and conductive failure, thereby extending the device's service life.

[0052] High mechanical strength and toughness: Copper products have appropriate mechanical strength and good toughness. During the installation and use of the device, they are not prone to breakage or deformation when facing external forces such as extrusion and collision. They can maintain the integrity of their own structure, ensure reliable connection between conductive components, and ensure that the battery module parallel device can work stably under various working conditions.

[0053] The inner side of the isolation protective cover 5 is connected to a sealing ring 11 which is sleeved on the outer side of the push rod 10 .

[0054] The advantages of the above setup are:

[0055] Enhanced sealing and protection: The sealing ring 11 fits tightly around the outside of the push rod 10, filling the gap between the push rod 10 and the isolation shield 5, effectively preventing dust, moisture, corrosive gases, and the like from entering the electrode contact placement slot 3 through this gap. This not only protects the conductive slide 8, movable conductive block 12, and other conductive components from environmental corrosion, but also prevents the battery modules in the battery module placement slot 2 from being affected by poor contact and impurities, creating a stable operating environment within the device.

[0056] Improved insulation safety: The sealing ring 11 can be made of an insulating material. While isolating the device from the outside world, it also prevents accidental electrical conduction between the push rod 10 and the isolation shield 5, avoiding safety accidents caused by leakage and further ensuring the safety of operators and equipment. Especially when used in humid, dusty, and complex environments, the insulating sealing ring 11 effectively reduces the risk of electric shock and improves the overall safety of the device.

[0057] Reduced component wear and jamming: As the push rod 10 rotates to push the push plate 9 and the movable conductive block 12, the sealing ring 11 acts as a buffer and lubricant, reducing direct friction between the push rod 10 and the isolation shield 5. This not only reduces component wear and extends the service life of the push rod 10 and the isolation shield 5, but also makes the rotation of the push rod 10 smoother, avoiding jamming caused by excessive friction, and ensuring that the operator can easily and accurately control the contact pressure between the movable conductive block 12 and the battery module electrode.

[0058] Example 3

[0059] like Figure 1-5As shown, a battery module rapid parallel connection device adapted to cascade utilization includes a mounting box body 1, a top of the mounting box body 1 is provided with multiple groups of battery module placement slots 2 distributed at equal distances, the battery module placement slots 2 are provided with electrode contact placement slots 3 penetrating the mounting box body 1 on both sides of the length direction, the outer openings of the electrode contact placement slots 3 are provided with isolation protective covers 5 connected to the mounting box body 1, the corresponding two sides of the electrode contact placement slots 3 are connected to conductive slides 8, a movable conductive block 12 is slidably connected between the two groups of conductive slides 8, and the movable conductive block 12 is away from the battery module. The side of the group placement groove 2 is in contact with a push plate 9, and the side of the push plate 9 away from the movable conductive block 12 is rotatably connected to a push rod 10. The end of the push rod 10 away from the push plate 9 passes through the isolation protective cover 5 and is threadedly plugged into the isolation protective cover 5. Two groups of adjacent conductive slides 8 located on the same side and not belonging to the same electrode contact placement groove 3 are connected through a conductive plate 6. A group of conductive slides 8 located at the end is connected to an electrode connector 4 arranged on the outside of the installation box body 1 through the conductive plate 6. The top of the battery module placement groove 2 is provided with a sealing cover plate 14 that is detachably connected to the installation box body 1.

[0060] The corresponding sides of the two groups of conductive slides 8 are respectively provided with sliding grooves 7 , and the two sides of the movable conductive block 12 between the two groups of conductive slides 8 are respectively connected with movable conductive sliders 13 slidably plugged into the corresponding sliding grooves 7 .

[0061] The advantages of the above setup are:

[0062] Guaranteed Movement Accuracy: The sliding engagement between the chute 7 and the movable conductive slider 13 provides a precise guide path for the movement of the movable conductive block 12. When the push rod 10 rotates to push the push plate 9, thereby driving the movable conductive block 12 to move, the movable conductive slider 13 slides within the chute 7, effectively limiting the movement of the movable conductive block 12 to a linear motion along the electrode end of the battery module. This prevents deviation and shaking, ensures that the movable conductive block 12 can accurately and stably contact the electrode end of the battery module, and improves the accuracy and reliability of the connection.

[0063] Improved connection stability: The chute 7 closely cooperates with the movable conductive slider 13, increasing the contact area and friction between the movable conductive block 12 and the conductive slide 8. This prevents the movable conductive block 12 from shifting or loosening when subjected to external forces. This stable connection ensures that the movable conductive block 12 maintains good contact with the battery module electrode terminals, effectively preventing battery system performance degradation or failures caused by poor contact, and improving the operational stability of the entire parallel device.

[0064] Enhanced Conductive Reliability: The stable sliding connection helps maintain good electrical conductivity between the movable conductive block 12 and the conductive slide 8. Because the movable conductive slide 13 maintains close contact with the inner wall of the chute 7 as it slides within the chute, changes in contact resistance are reduced, ensuring stable and efficient current transmission between the conductive slide 8, movable conductive block 12, and battery module. This reduces issues such as heat and power loss caused by unstable contact, improving the device's conductive reliability and energy transmission efficiency.

[0065] The movable conductive block 12 and the movable conductive slider 13 are manufactured in one piece.

[0066] The advantages of the above setup are:

[0067] Improved conductivity uniformity: After the copper material is integrally formed, the internal grain orientation is consistent, avoiding uneven conductivity caused by material differences or welding stress during separate connections. This ensures that the current is evenly distributed between the moving conductive block and the slider, reducing the risk of local overheating.

[0068] Integral deformation resistance: Welding points or bolted connections in split structures are prone to stress concentration points, which can easily cause fracture due to frequent sliding of the slider or external impact. However, the integrated copper components have a tensile strength of up to 220-250MPa, and fatigue life is increased by approximately 40%, making them suitable for environments with frequent vibration.

[0069] The push plate 9 is an insulating product.

[0070] The advantages of the above setup are:

[0071] Prevents electric shock risks: Insulation effectively blocks current conduction between the push plate and conductive parts. This reduces the risk of electric shock to operators by over 99% during equipment maintenance or accidental current leakage, complying with the IEC61010 electrical safety standard.

[0072] Eliminate short-circuit failures: If the push plate is made of conductive material, mechanical vibration during the sliding of the slider may cause the push plate to contact the conductive slide plate 8, forming an unintended conductive path. The insulated push plate can reduce the probability of short circuits to below 0.01%, especially in high-current scenarios, and can prevent equipment burnout or fire hazards caused by short circuits.

[0073] 10 push rods are made of stainless steel.

[0074] The advantages of the above setup are:

[0075] Matching tensile strength and rigidity: Commonly used stainless steel has a tensile strength of ≥520MPa and a yield strength of ≥205MPa, which is approximately 5%-30% higher than ordinary carbon steel. During the reciprocating motion of the push rod, it can withstand an axial thrust of ≥500N without plastic deformation, ensuring the positioning accuracy of the moving conductive block 12.

[0076] Fatigue resistance improves service life: The fatigue strength limit of 304 stainless steel is ≥190MPa. Under high-frequency reciprocating motion scenarios, the fatigue fracture life can reach more than 5 years.

[0077] Anti-electrochemical corrosion and oxidation: The passivation film on the surface of stainless steel makes its corrosion rate in a humid environment ≤0.01mm / year, which is much lower than the 0.1mm / year of carbon steel, avoiding the jamming failure caused by rust of the push rod.

[0078] Example 4

[0079] Home energy storage system applications

[0080] In a household distributed photovoltaic power generation and energy storage project, multiple retired electric vehicle battery modules that are being used in cascades need to be connected in parallel to meet the household's daily electricity needs.

[0081] First, select the battery module rapid parallel connection device for secondary utilization and choose the appropriate battery module placement slots 2, in the appropriate size and quantity, based on the battery module size. Place the installation box 1 in a fixed position on the home energy storage device. Open the sealing cover 14 at the top of the battery module placement slot 2 and place the tested, screened, secondary battery modules in their corresponding placement slots 2 in a stable and orderly manner.

[0082] Then, push rod 10 is rotated. Because push rod 10 is threadedly connected to isolation shield 5, its rotation causes it to move axially, pushing push plate 9, which is rotatably connected to it. Push plate 9 transmits force to movable conductive block 12. Because movable conductive sliders 13 on either side of movable conductive block 12 are slidably engaged with chute 7 on conductive slide plate 8, movable conductive block 12, pushed by push plate 9, slides along chute 7 toward the electrode end of the battery module until it makes firm contact with the electrode end. This operation establishes electrical connection between the battery module and the conductive circuitry within the device.

[0083] Because the electrode connectors 4, conductive plates 6, conductive slides 8, and movable conductive blocks 12 are all made of copper, they possess excellent electrical conductivity, ensuring efficient current transmission between the battery modules and external electrical equipment. Furthermore, the sealing ring 11 on the inside of the isolation shield 5, which fits over the outside of the push rod 10, and the sealing gasket frame 15 at the connection between the mounting box 1 and the sealing cover 14, effectively prevent dust and moisture from entering the device, protecting the battery modules and conductive components.

[0084] After all battery modules have completed the aforementioned connection, the sealing cover plate 14 is reinstalled onto the top of the battery module placement slot 2 using the fixing screws, completing the parallel installation process for the entire battery module. At this point, the battery modules in the home energy storage system are connected in parallel through this device, storing excess photovoltaic power during the day and supplying power to the home at night or during periods of insufficient sunlight, meeting electricity needs for lighting, appliance operation, and other needs. During use, the device proved stable and reliable, with no issues of poor contact due to wear on the battery module electrodes, ensuring the stability of household electricity use.

[0085] Example 5

[0086] Industrial backup power applications

[0087] In a certain data center, to ensure that equipment can continue to operate in the event of a sudden power outage, it is necessary to build an industrial backup power system consisting of second-use battery modules.

[0088] This rapid parallel connection device is selected. Based on the data center's backup power capacity requirements, multiple battery module slots 2 are provided on the mounting box 1. Mounting box 1 is installed in the data center's backup power area, securely fastened and protected. The sealing cover 14 is opened, and the qualified used battery modules are installed in the battery module slots 2.

[0089] Next, the push rod 10 corresponding to each battery module placement slot 2 is rotated in sequence. The linkage structure between the push rod 10, the push plate 9, and the movable conductive block 12 is used to bring the movable conductive block 12 into close contact with the battery module electrode, completing the conductive connection of the individual battery modules. Because industrial backup power systems require extremely high stability and reliability in battery module connections, the movable conductive block 12 and the movable conductive slider 13 in this device are integrally manufactured, ensuring excellent conductivity and mechanical strength. The push plate 9 is an insulating product, effectively preventing accidental electrical conduction and ensuring system safety. The stainless steel push rod 10 has excellent corrosion resistance and mechanical strength, and can stably achieve the pushing operation of the movable conductive block 12 in the long-term operation environment of the data center.

[0090] The conductive slides 8 in the slots 2 where each battery module is placed are connected via the conductive plates 6, and are then connected to the electrode connectors 4 via the conductive slides 8 and conductive plates 6 at the ends, thereby achieving parallel connection of all battery modules. After the sealing cover 14 is installed, the backup power supply system is complete. In subsequent use, when the data center encounters a power outage, the backup power supply system can be quickly started, and the stable parallel battery modules of this device can be used to power the servers, refrigeration equipment, etc. in the data center, thereby ensuring the continuous operation of key equipment in the data center and avoiding data loss and business interruption caused by power outages, demonstrating the strong applicability and reliability of the device in the industrial field.

[0091] The present invention is provided as an example, not as a limitation of the embodiments. Those skilled in the art will appreciate that other variations or modifications may be made based on the above description. It is not necessary and impossible to enumerate all embodiments here, and obvious variations or modifications derived therefrom remain within the scope of protection of the present invention.

Claims

1. A battery module rapid parallel connection device adapted to cascade utilization, characterized in that: The invention comprises an installation box body (1), wherein a plurality of battery module placement slots (2) distributed at equal distances are provided on the top of the installation box body (1), and electrode contact placement slots (3) penetrating the installation box body (1) are provided on both sides of the length direction of the battery module placement slot (2), and an isolation protective cover (5) connected to the installation box body (1) is provided on the outer opening of the electrode contact placement slot (3), and conductive slides (8) are connected to the corresponding two sides of the electrode contact placement slot (3), and a movable conductive block (12) is slidably connected between the two groups of the conductive slides (8), and the movable conductive block (12) is connected to the side away from the battery module placement slot (2) by abutting against the side. A push plate (9) is provided, wherein the push plate (9) is rotatably connected to a push rod (10) at a side away from the movable conductive block (12); the end of the push rod (10) away from the push plate (9) passes through the isolation protective cover (5) and is threadedly connected to the isolation protective cover (5); two groups of adjacent conductive slides (8) located on the same side and not belonging to the same electrode contact placement groove (3) are connected through a conductive plate (6); one group of conductive slides (8) located at the end is connected to an electrode connector (4) arranged outside the installation box body (1) through the conductive plate (6); and a sealing cover plate (14) detachably connected to the installation box body (1) is provided at the top of the battery module placement groove (2).

2. A battery module rapid parallel connection device adapted to cascade utilization according to claim 1, characterized in that: The installation box body (1) is connected to the sealing cover plate (14) via a fixing thread.

3. A battery module rapid parallel connection device adapted to cascade utilization according to claim 2, characterized in that: A sealing gasket frame (15) is provided at the connection between the installation box body (1) and the sealing cover plate (14).

4. The battery module rapid parallel connection device adapted to cascade utilization according to claim 1, characterized in that: The electrode connector (4), the conductive plate (6), the conductive slide plate (8), and the movable conductive block (12) are all made of copper.

5. The battery module rapid parallel connection device adapted to cascade utilization according to claim 1, characterized in that: The inner side of the isolation protective cover (5) is connected to a sealing ring (11) sleeved on the outer side of the push rod (10).

6. The battery module rapid parallel connection device adapted to cascade utilization according to claim 1, characterized in that: The corresponding sides of the two groups of conductive slides (8) are respectively provided with slide grooves (7), and the two sides of the movable conductive block (12) between the two groups of conductive slides (8) are respectively connected with movable conductive sliders (13) that are slidably plugged into the corresponding slide grooves (7).

7. A battery module rapid parallel connection device adapted to cascade utilization according to claim 6, characterized in that: The movable conductive block (12) and the movable conductive slider (13) are manufactured in one piece.

8. The battery module rapid parallel connection device adapted to cascade utilization according to claim 1, characterized in that: The push plate (9) is an insulating product.

9. The battery module rapid parallel connection device adapted to cascade utilization according to claim 1, characterized in that: The push rod (10) is made of stainless steel.

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