An interlock device, a battery module, and a battery module system

Abstract

This utility model relates to the field of communication technology, and in particular to an interlocking device, a battery module, and a battery module system. In the interlocking device, a first mounting plate is fixedly connected to the housing of the battery module, and the first mounting plate is provided with a first circular shaft. A first end of a connecting body is rotatably connected to the first circular shaft, and the connecting body is provided with multiple circular holes. A second mounting plate is connected to the housing of another battery module, and the second mounting plate is provided with a mounting base and a rotating component connected to the mounting base; the mounting base also has a first open structure for the second end of the connecting body to be inserted. A first mounting part is fixedly connected to the first mounting plate and to the housing of the battery module. This utility model connects battery modules through an interlocking device, thereby enhancing the stability of the connection between battery modules. The interlocking device also allows for different arrangements of battery modules, enabling quick and easy assembly / disassembly and heat dissipation of different battery systems.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, and in particular to an interlocking device, a battery module, and a battery module system. Background Technology

[0002] As a critical infrastructure in mobile communication networks, base stations rely on their battery systems to provide continuous power to communication equipment during power outages, directly impacting the operational stability of base stations and the continuity of communication services. Base stations commonly use lead-acid or lithium batteries as backup power sources; however, these batteries are mostly fixed installations, resulting in fixed installation locations, complex wiring, and difficulties in flexible deployment.

[0003] In existing technologies, portable lithium battery systems using rack-mount installation are employed to address emergency power supply needs of base stations. These systems mount multiple lithium battery modules within a standard rack and output power via fixed connections. However, this rack-mount installation method has significant limitations in practical applications. It is constrained by the space and structure of the equipment room; size limitations in different directions result in an insufficient number of batteries, making it difficult to meet long-term power supply requirements. Furthermore, the fixed wiring in rack-mount installations is complex and time-consuming to install and remove, failing to meet the rapid deployment needs of emergency communication scenarios. Secondly, fixed installations fail to fully utilize equipment room space, and the need for significant spacing to accommodate heat dissipation further reduces space utilization efficiency.

[0004] Therefore, how to solve the problems of existing battery systems being unable to adapt to different data center space structures, being inconvenient to quickly disassemble and assemble, and having poor heat dissipation and stability is one of the important problems that urgently need to be solved in this field. Utility Model Content

[0005] In view of this, an exemplary embodiment of the present invention provides an interlocking device, a battery module, and a battery module system to address the problems of existing battery systems being unable to adapt to different computer room space structures, being inconvenient for quick assembly and disassembly, and having poor heat dissipation and stability.

[0006] According to one aspect of the present invention, an interlocking device is provided, the interlocking device comprising:

[0007] The first mounting plate is fixedly connected to the housing of the battery module, and the first mounting plate is provided with a first circular shaft;

[0008] The connector has a first end that is rotatably connected to a first circular shaft, and the connector has multiple circular holes.

[0009] The second mounting plate is connected to the housing of another battery module, and the second mounting plate is provided with a mounting base and a rotating part connected to the mounting base; the mounting base is also provided with a first opening structure for the second end of the connector to be inserted;

[0010] The first mounting part is fixedly connected to the first mounting plate and is fixedly connected to the housing of the battery module. The first mounting part is provided with a mounting bracket, which is a second open structure, used to store and limit the second end of the connector when the connector is rotated to a position overlapping with the first mounting plate.

[0011] According to one aspect of the present invention, the interlocking device has each circular hole equally spaced on the connecting body for connecting the rotating component to the second mounting plate to adjust and fix the connection spacing between the two battery modules.

[0012] According to one aspect of the interlocking device of the present invention, the second end is an arc-shaped structure, and the arc-shaped structure is bent in a direction away from the second mounting plate.

[0013] According to one aspect of the interlocking device of the present invention, the mounting bracket is a U-shaped mounting bracket or a C-shaped mounting bracket;

[0014] The opening direction of the mounting bracket is adapted to the rotation trajectory of the connector, and is used to limit the connector when it is not in operation.

[0015] According to another aspect of the present invention, a battery module is provided, the battery module comprising:

[0016] Box;

[0017] As described above, the first mounting plate and the first mounting part of the interlocking device are both fixedly connected to the outer side wall of the housing, and the second mounting plate of the interlocking device is fixedly connected to the outer side wall of another housing.

[0018] According to one aspect of the present invention, the battery module further includes:

[0019] Single-cell lithium battery pack;

[0020] The battery management unit is used to manage battery charging and discharging as well as monitor battery status.

[0021] The interface unit, located on the outer wall of the enclosure, is used to enable quick electrical connection with other battery modules or switching power supplies.

[0022] The positioning unit is used to locate and track the battery module.

[0023] The display unit is used for human-computer interaction and status display.

[0024] Intelligent fire suppression unit for early warning and protection against battery thermal runaway.

[0025] According to one aspect of the present invention, the interface unit of the battery module is a prefabricated connector or plug-in.

[0026] The battery management unit is connected to the positioning unit to upload the battery status and location parameters of the battery module to the energy management system.

[0027] According to another aspect of the present invention, a battery module system is also provided, the battery module system comprising:

[0028] Multiple of the aforementioned battery modules;

[0029] Each battery module is connected and arranged in a battery module by an interlocking device.

[0030] The connection between each battery module can be any of the following: stacked vertically, arranged vertically, or arranged horizontally.

[0031] According to one aspect of the present invention, in a battery module system, adjacent battery modules are connected in series or in parallel.

[0032] According to one aspect of the present invention, when the battery modules are connected by stacking, the adjacent battery modules also have a load-bearing bracket for supporting the battery modules.

[0033] The above-mentioned technical solutions adopted in this utility model embodiment can achieve the following beneficial effects: The interlocking device has multiple equally spaced circular holes on the connecting body, allowing the rotating component to connect to the second mounting plate through these holes, thereby adjusting and fixing the connection spacing between the two battery modules. This allows the battery modules to be flexibly stacked vertically, arranged longitudinally, or arranged laterally according to the actual conditions of the computer room space, adapting to different spatial layout requirements. Based on this, the interlocking device makes the connection and disassembly of the battery modules more convenient. The first end of the connecting body is rotatably connected to the first circular shaft on the first mounting plate, and the second end can be inserted into the first open structure of the mounting seat of the second mounting plate. When disassembly is required, simply pull the connecting body out of the mounting seat and rotate it to a position overlapping with the first mounting plate to separate the two battery modules. The operation is simple and facilitates quick assembly and disassembly. Furthermore, the reasonable spatial layout and connection method promote air circulation, thus contributing to heat dissipation to a certain extent. The intelligent fire suppression unit installed in the battery module can provide early warning and protection against battery thermal runaway, indirectly ensuring the safe operation of the battery under conditions of poor heat dissipation. Secondly, the interlocking device securely connects the two battery modules together via a connector, and the mounting bracket limits the connector when it is not in operation, preventing it from rotating or moving freely, thus enhancing the stability of the connection between the battery modules. When the battery modules are stacked vertically, the load-bearing supports between adjacent layers can withstand the weight of the battery modules, further improving the overall stability of the battery module system. This effectively solves the problems of existing battery systems being unable to adapt to different data center space structures, inconvenient for quick assembly and disassembly, and having poor heat dissipation and stability. Attached Figure Description

[0034] The above and other objects, features, and advantages of this utility model will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this utility model and form part of the specification. They are used together with the embodiments of this utility model to explain the utility model and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0035] Figure 1 A schematic diagram of the interlocking device provided in an embodiment of this utility model;

[0036] Figure 2 A schematic diagram showing the connector detaching from the second mounting plate according to an embodiment of this utility model;

[0037] Figure 3 A schematic diagram showing the connector being limited in the first mounting part according to an embodiment of this utility model;

[0038] Figure 4A schematic diagram of a single lithium battery pack provided in an embodiment of this utility model;

[0039] Figure 5 This is a schematic diagram of the horizontal arrangement of the battery modules provided in an embodiment of the present utility model;

[0040] Figure 6 This is a schematic diagram of the longitudinal arrangement of the battery modules provided in an embodiment of the present utility model;

[0041] Figure 7 This is a schematic diagram of the battery modules stacked vertically according to an embodiment of the present utility model;

[0042] Figure 8 A schematic diagram of a load-bearing bracket provided for an embodiment of this utility model.

[0043] Figure label:

[0044] 101-First mounting plate, 102-Second mounting plate, 103-Connector, 104-First mounting part, 105-Rotating component, 106-Circular hole, 107-Mounting bracket. Detailed Implementation

[0045] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0046] It should be understood that the steps described in the method embodiments of this utility model may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this utility model is not limited in this respect.

[0047] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0048] It should be noted that the terms "a" and "a plurality of" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0049] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0050] As a critical infrastructure in mobile communication networks, base stations rely on their battery systems to provide continuous power to communication equipment during power outages, directly impacting the operational stability of base stations and the continuity of communication services. Base stations commonly use lead-acid or lithium batteries as backup power sources; however, these batteries are mostly fixed installations, resulting in fixed installation locations, complex wiring, and difficulties in flexible deployment.

[0051] In existing technologies, portable lithium battery systems using rack-mount installation are employed to address emergency power supply needs of base stations. These systems mount multiple lithium battery modules within a standard rack and output power via fixed connections. However, this rack-mount installation method has significant limitations in practical applications. It is constrained by the space and structure of the equipment room; size limitations in different directions result in an insufficient number of batteries, making it difficult to meet long-term power supply requirements. Furthermore, the fixed wiring in rack-mount installations is complex and time-consuming to install and remove, failing to meet the rapid deployment needs of emergency communication scenarios. Secondly, fixed installations fail to fully utilize equipment room space, and the need for significant spacing to accommodate heat dissipation further reduces space utilization efficiency.

[0052] To address the aforementioned problems, an exemplary embodiment of this utility model provides an interlocking device, a battery module, and a battery module system, which solves the problems of existing battery systems being unable to adapt to different computer room space structures, being inconvenient for quick assembly and disassembly, and having poor heat dissipation and stability.

[0053] The following will describe in detail, with reference to the accompanying drawings, a refined coal upgrading device according to an embodiment of the present utility model.

[0054] Figure 1 This is a schematic diagram of the interlocking device provided in an embodiment of the present utility model. Figure 2 This is a schematic diagram showing the connector detaching from the second mounting plate according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the connector being limited in the first mounting part according to an embodiment of the present invention, as shown below. Figures 1-3As shown, a first mounting plate 101 is fixedly connected to the housing of the battery module, and a first circular shaft is provided on the first mounting plate 101. The first end of the connector 103 is rotatably connected to the first circular shaft, and a plurality of circular holes 106 are provided on the connector 103. A second mounting plate 102 is connected to the housing of another battery module, and a mounting base and a rotating member 105 connected to the mounting base are provided on the second mounting plate 102; the mounting base is also provided with a first open structure for the second end of the connector 103 to be inserted. A first mounting part 104 is fixedly connected to the first mounting plate 101 and is fixedly connected to the housing of the battery module. A mounting bracket 107 is provided on the first mounting part 104. The mounting bracket 107 is a second open structure, used to accommodate and limit the second end of the connector 103 when the connector 103 rotates to a position overlapping with the first mounting plate 101.

[0055] In practical applications, such as Figures 1-3 As shown, the first end of the connector 103 is rotatably connected to the first circular shaft on the first mounting plate 101, while the second end is in a free state and not inserted into the first open structure of the mounting base of the second mounting plate 102. At this time, the connector 103 is disengaged from the second mounting plate 102. Figure 2 As shown. The housings of the two battery modules are initially connected by a connector 103, but the connector 103 can rotate freely around a first circular axis. When a tighter connection between the housings of the two battery modules is required, the connector 103 is pushed to rotate around the first circular axis, and the second end of the connector 103 is inserted into the first open structure of the mounting base on the second mounting plate 102. Rotating the rotating member 105 on the mounting base, the second end of the connector 103, after insertion, may cooperate with the rotating member 105 to further fix the position of the connector 103, achieving a stable connection between the housings of the two battery modules. At this time, the connector 103 is connected to the second mounting plate 102, forming as shown. Figure 1 The diagram shows the following. When the housing connecting the two battery modules is not needed, push the connector 103 in the reverse direction to rotate it around the first circular axis, pulling the second end of the connector 103 out of the mounting base of the second mounting plate 102. Continue rotating the connector 103 until it overlaps with the first mounting plate 101. At this time, the second end of the connector 103 enters the second open structure of the mounting bracket 107 on the first mounting part 104, completing the storage and limiting. At this time, the connector 103 disengages from the second mounting plate 102, forming as shown in the diagram. Figure 3 The diagram shown is shown in the image.

[0056] As can be seen from the above implementation process, if Figures 1-3As shown, the quick connection and separation of the two battery module housings are achieved through the rotation, insertion, and removal of the connector 103. This simple and convenient operation improves installation and disassembly efficiency. When the two battery module housings are not needed, the connector 103 can be rotated to overlap with the first mounting plate 101 and stored away without occupying additional space, which is beneficial for the compact layout of the battery modules and the effective use of overall space. After the second end of the connector 103 is inserted into the mounting base of the second mounting plate 102, it may cooperate with the rotating component 105. The storage and limiting of the connector 103 by the mounting bracket 107 also improves the stability of the connector 103 when connecting the two battery module housings, preventing loosening or detachment during use. Furthermore, the interlocking device has a simple structure, is easy to process and manufacture, and the cooperation between the components is clear, ensuring stable and reliable operation and reducing the probability of malfunctions.

[0057] For example, such as Figure 1 As shown, each circular hole 106 is evenly spaced on the connector 103, used for the rotating component 105 to connect to the second mounting plate 102, thereby adjusting and fixing the connection spacing between the two battery modules. The evenly spaced circular holes 106 allow the rotating component 105 to select different circular holes 106 to connect to the second mounting plate 102, thus enabling precise adjustment of the spacing between the two battery modules according to actual needs. This flexibility can adapt to different installation space requirements and battery module arrangement requirements, improving the versatility and adaptability of battery module installation. Furthermore, the evenly spaced circular holes 106 ensure a relatively uniform distribution of connection force between the connector 103 and the second mounting plate 102 at different spacings. Regardless of which circular hole 106 is selected for connection, the fit between the rotating component 105 and the connector 103 and the second mounting plate 102 maintains a relatively consistent tightness and stability, avoiding problems such as excessive local stress or weak connection caused by uneven hole distribution, thus ensuring the reliability of the connection between the two battery modules. Secondly, the evenly spaced circular holes 106 are easier to manufacture, allowing for standardized processing techniques and molds, improving processing accuracy and production efficiency while reducing manufacturing costs. Simultaneously, this regular hole distribution facilitates quality inspection and control, ensuring the consistency of hole position accuracy and spacing in each connector 103, thereby guaranteeing the stable performance of the entire connection structure.

[0058] For example, such as Figure 2As shown, the second end has an arc-shaped structure, and the arc-shaped structure bends in a direction away from the second mounting plate 102. The arc-shaped structure can better fit the operator's hand grip posture, reducing the contact pressure between the hand and the component. The bending direction away from the second mounting plate 102 provides sufficient space for hand operation, avoiding interference between the hand and the second mounting plate 102 during operation. In addition, the arc-shaped design eliminates the sharp edges of the traditional right-angle end, preventing operators from being scratched by components during handling, assembly, or maintenance, and also preventing sharp ends from causing bump damage to other equipment or portable lithium battery cases during transportation or use in the machine room. The bending direction matches the rotation trajectory of the intermediate connecting body, ensuring that the force can be accurately transmitted to the rotation axis during operation, avoiding component deformation due to improper operating angle, ensuring the stability of the interlocking structure in long-term use, and indirectly improving the overall robustness of the portable lithium battery stack.

[0059] For example, such as Figure 2 As shown, the mounting bracket 107 is a U-shaped mounting bracket 107 or a C-shaped mounting bracket 107. The opening direction of the mounting bracket 107 is adapted to the rotation trajectory of the connector 103, and is used to limit the connector 103 when it is in a non-working state.

[0060] In practical applications, such as Figure 2 As shown, the U-shaped mounting bracket 107 has a U-shaped cross-section and no rolled edge structure. When the opening direction matches the rotation trajectory of the connector 103, it can provide a relatively wide limiting space for the connector 103. When the connector 103 is not in operation, it can be stably supported and limited within the U-shaped groove, and is not prone to shaking or displacement. In addition, the U-shaped mounting bracket 107 can withstand high pressure, provide support for a long time, and is easy to install and not easily deformed. When the connector 103 is not in operation, the U-shaped mounting bracket 107 can better bear the weight of the connector 103 and other external forces that may be subjected to it, ensuring that the position of the connector 103 is fixed. For example, in the limiting of connecting parts in some heavy machinery, the U-shaped mounting bracket 107 can stably limit the connector 103 for a long time. Secondly, the C-shaped mounting bracket 107 has a rolled edge structure, which can effectively resist shear, prevent slippage, and resist impact. When the connector 103 is not in operation, if it is subjected to external impact or shear force, the C-shaped mounting bracket 107 can better resist the action of these forces and prevent the connector 103 from being dislodged from the limit position due to force. For example, in some equipment with large vibration, the C-shaped mounting bracket 107 can play a good limiting protection role for the connector 103.

[0061] In an alternative embodiment, the present invention also provides a battery module, which includes: a housing and the aforementioned interlocking device, wherein the first mounting plate and the first mounting part of the interlocking device are both fixedly connected to the outer side wall of the housing, and the second mounting plate of the interlocking device is fixedly connected to the outer side wall of another housing.

[0062] In practical applications, the first mounting plate, the first mounting part, and the second mounting plate are respectively fixed to the outer walls of two adjacent enclosures. This allows the locking force of the interlocking device to be directly transmitted to the main structure of the enclosure, preventing stacking collapse due to connection point detachment or loosening. Compared to traditional rack-mounted indirect fixing, this reduces the gap between the rack and the enclosure, improving overall vibration and tilt resistance. Furthermore, the first and second mounting plates are rigidly connected to the outer walls of the enclosures. Combined with the multi-position adjustment of the intermediate connector, the connection distance between adjacent enclosures can be precisely controlled, meeting equipment spacing specifications while preventing enclosure compression or shaking due to improper spacing, and ensuring smooth airflow for heat dissipation.

[0063] Figure 4 This is a schematic diagram of a single lithium battery pack provided in an embodiment of the present invention, as shown below. Figure 4 As shown, the battery module also includes individual lithium battery cells. It should be understood that the aforementioned individual lithium battery cells are composed of 16 lithium iron phosphate cells connected in series, with the cells linked by copper busbars. They are externally wrapped with flame-retardant insulating material and fixed to a shock-absorbing bracket inside the housing. A 5mm buffer gap is provided between the bracket and the side wall of the housing for transport. The series-connected cell structure simplifies the modular design of the battery pack. Battery packs of different capacities can use the same housing and interlocking devices. The internal shock-absorbing bracket and flame-retardant insulation design prevent short circuits caused by cell collisions during transportation, ensuring transport safety.

[0064] In addition, the battery management unit (BMU) manages battery charging and discharging as well as status monitoring. Integrated on one side of the casing, the BMU connects to each cell in the individual lithium battery pack via sampling lines, collecting real-time cell voltage and temperature data. Through precise voltage and temperature monitoring and overvoltage, overcurrent, or overtemperature protection, it prevents battery thermal runaway, addressing the safety hazards caused by the lack of status monitoring in traditional portable lithium batteries. Furthermore, based on charge and discharge data control, it reduces cell degradation.

[0065] In addition, the interface unit, located on the outer wall of the enclosure, is used to achieve quick electrical connection with other battery modules or switching power supplies. The interface unit is actually integrated in the middle of the outer wall of the enclosure, employing a waterproof and dustproof quick-plug structure, and includes a power interface and a communication interface. The power interface is used for input charging and output discharging. The communication interface is used for bus communication with other battery modules or intelligent energy management systems to transmit charging or discharging status data; the interface has a locking structure. Pre-fabricated cables with quick-plug connectors can directly connect to the interface units of adjacent modules without on-site soldering or wiring. The quick-plug interface on the outer wall, combined with the pre-fabricated system interconnects, shortens the assembly and disassembly time of a single module. The waterproof and dustproof rating, along with the reverse connection protection and locking design, allows it to adapt to humid and dusty environments such as computer rooms, preventing power outages due to interface failure. A standardized interface specification allows for universal connection of battery modules from different batches and with different capacities, improving the flexibility of modular assembly.

[0066] Secondly, the positioning unit is used for the location and tracking of the battery module. This positioning unit is actually a GPS positioning module integrated into the antenna box on the top of the enclosure. When the battery module is moved without authorization, an alarm is triggered and technicians are notified. When a base station needs emergency power due to a power outage, the dispatch platform can quickly locate nearby idle battery modules through the positioning unit, plan transportation routes, and improve emergency response efficiency. The unauthorized movement alarm function prevents theft or accidental removal of battery modules during transportation or when idle, solving the problem of asset loss caused by the lack of positioning for traditional portable lithium batteries.

[0067] Next, the display unit is used for human-machine interaction and status display. In practical applications, the display unit uses an LCD touch screen, embedded next to the interface unit on the outer wall of the enclosure. The screen brightness is adjustable and supports touch operation and button backup. The displayed content includes the real-time status of the battery, alarm information, and the operation interface, displaying battery voltage, current, remaining battery capacity percentage, battery health status percentage, and the highest temperature of the battery cells. Battery alarm information includes overvoltage, overcurrent, or overtemperature alarms, and loose interface alarms. The operation interface displays information such as selecting charging or discharging modes via touch, querying historical charging and discharging records, and setting local alarm thresholds. Operators do not need to connect to a computer or special equipment; they can intuitively obtain the battery status through the display unit on the outside of the enclosure. In emergency deployment, the display unit allows real-time viewing of the operating status of each module, facilitating timely adjustments to the stacking combination, ensuring stable power supply to the base station, and solving the problem of slow fault diagnosis caused by the lack of on-site status display in existing technologies.

[0068] Finally, the intelligent fire suppression unit is used for battery thermal runaway early warning and protection. Integrated into the top of the enclosure, the intelligent fire suppression unit includes detection, protection, and control components. When the detection component detects excessively high temperatures or smoke, it triggers the fire extinguisher to spray and simultaneously sends a fire activation signal to the battery management unit, which then cuts off the charging and discharging circuit. Through dual temperature and smoke detection, the intelligent fire suppression unit can quickly intervene in the early stages of lithium battery thermal runaway, preventing the fire from spreading and ensuring the safety of other equipment and personnel in the computer room.

[0069] For example, the interface unit is a prefabricated connector or plug-in. The battery management unit communicates with the positioning unit to upload the battery status and location parameters of the battery module to the energy management system. The prefabricated interface unit enables "plug-and-play" of the battery module, avoiding on-site soldering or wiring errors and shortening installation time. During operation and maintenance, faulty modules can be quickly replaced through the interface, reducing downtime to within a certain limit. In addition, the binding upload of battery status parameters and location parameters solves the problem in traditional systems where only the abnormal status is known, but the specific location is not. Based on the spatial topology model of location parameters, the EMS can more accurately match the battery status and environmental conditions, dynamically adjust the charging and discharging strategy, and extend the battery cycle life. Secondly, the prefabricated interface unit adopts a standardized design, supporting compatible docking of battery modules from different manufacturers, reducing the difficulty of system integration.

[0070] In an alternative embodiment, this invention also provides a battery module system comprising multiple battery modules as described above, each battery module being connected and arranged in a battery module configuration via an interlocking device. The connection method between each battery module can be any one of vertical stacking, vertical arrangement, or horizontal arrangement.

[0071] In practical applications, Figure 5 This is a schematic diagram of the horizontal arrangement of battery modules provided in an embodiment of the present invention. Figure 6 This is a schematic diagram of the longitudinal arrangement of the battery modules provided in an embodiment of the present invention. Figure 7 This is a schematic diagram of the battery modules stacked vertically according to an embodiment of the present invention, as shown below. Figures 5-7 As shown, the number of lithium batteries installed is insufficient due to limitations in the horizontal, vertical, or vertical dimensions of the computer room. An interlocking device is used to connect to the outer wall of the room to adapt to different spatial constraints. For example... Figure 5 As shown, the battery modules are connected and arranged horizontally via an interlocking device. Figure 6 As shown, the battery modules are connected and arranged longitudinally via an interlocking device. For example, in a narrow space with a lateral width of less than 2m, adjacent units are arranged longitudinally via interlocking devices on their outer walls, eliminating the need for additional space reserved for rack installation. Figure 7As shown, the battery modules are connected by an interlocking device to stack vertically. When stacked vertically, the interlocking devices on the outer walls of the upper and lower boxes work together to precisely control the stacking height. At the same time, the connection of the outer walls ensures the verticality of the stack and prevents it from tipping over due to the shift of the center of gravity.

[0072] For example, adjacent battery modules can be connected in series or in parallel. When adjacent modules are connected in series, the total voltage increases linearly with the number of modules, directly adapting to the power supply requirements of high-voltage equipment within the base station without the need for additional voltage conversion modules, thus solving the problem of insufficient voltage in traditional single modules to drive high-power loads. When adjacent modules are connected in parallel, the total capacity is the sum of the capacities of each module, directly covering the long-term power supply needs of high-load equipment rooms. Since the voltage of each module in the parallel system is consistent, even if there are differences in capacity between old and new modules, the charging and discharging current of each module can be dynamically balanced through the BMS to avoid over-discharging of old modules or overcharging of new modules. When a module fails, the remaining modules can continue to supply power, preventing the entire battery system from failing.

[0073] Figure 8 A schematic diagram of the load-bearing bracket provided in the embodiment of this utility model is shown below. Figure 8 As shown, when the battery modules are connected by stacking, there are also load-bearing supports between adjacent battery modules to support the battery modules.

[0074] In practical applications, such as Figure 8 As shown, the load-bearing bracket, through its rigid structure, supports the entire weight of the upper module and evenly distributes the load to the floor of the server room, rather than transferring it to the lower module, fundamentally preventing physical damage to the lower module due to overload. The load-bearing bracket, through its physical fit with the upper and lower modules, forms rigid support and limits in the vertical direction, preventing interface loosening or structural collapse, ensuring safety during emergency power supply. Furthermore, the presence of the load-bearing bracket allows for flexible adjustment of multi-layer stacking according to the height of the server room. This height adaptability allows the number of stacks to exceed the height limitations of stacking without a bracket, directly improving the utilization rate of server room space and thus increasing the total battery capacity.

[0075] The above description is merely an illustration of some embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that the scope of this utility model is not limited to the specific combinations of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features of this utility model that have similar functions.

[0076] While specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An interlocking device, characterized in that, The interlocking device includes: A first mounting plate is fixedly connected to the housing of the battery module, and a first circular shaft is provided on the first mounting plate. A connector, the first end of which is rotatably connected to the first circular shaft, and the connector is provided with a plurality of circular holes; The second mounting plate is connected to the housing of another battery module, and the second mounting plate is provided with a mounting base and a rotating component connected to the mounting base; the mounting base is also provided with a first opening structure for the second end of the connector to be inserted; The first mounting part is fixedly connected to the first mounting plate and is fixedly connected to the housing of the battery module. The first mounting part is provided with a mounting bracket, which is a second open structure, used to store and limit the second end of the connector when the connector is rotated to a position overlapping with the first mounting plate.

2. The interlocking device according to claim 1, characterized in that, Each of the circular holes is evenly spaced on the connector and is used to connect the rotating component to the second mounting plate to adjust and fix the connection spacing between the two battery modules.

3. The interlocking device according to claim 1, characterized in that, The second end has an arc-shaped structure, and the arc-shaped structure bends in a direction away from the second mounting plate.

4. The interlocking device according to claim 1, characterized in that, The mounting bracket is a U-shaped mounting bracket or a C-shaped mounting bracket; The opening direction of the mounting bracket is adapted to the rotation trajectory of the connector, and is used to limit the connector when it is in a non-working state.

5. A battery module, characterized in that, The battery module includes: Box; The interlocking device as described in any one of claims 1 to 4, wherein the first mounting plate and the first mounting part of the interlocking device are both fixedly connected to the outer side wall of the housing, and the second mounting plate of the interlocking device is fixedly connected to the outer side wall of another housing.

6. The battery module according to claim 5, characterized in that, The battery module also includes: Single-cell lithium battery pack; The battery management unit is used to manage battery charging and discharging as well as monitor battery status. An interface unit is located on the outer wall of the enclosure and is used to enable quick electrical connection with other battery modules or switching power supplies. The positioning unit is used to locate and track the battery module. The display unit is used for human-computer interaction and status display. Intelligent fire suppression unit for early warning and protection against battery thermal runaway.

7. The battery module according to claim 6, characterized in that, The interface unit is a prefabricated connector or plug-in; The battery management unit is communicatively connected to the positioning unit and is used to upload the battery status and location parameters of the battery module to the energy management system.

8. A battery module system, characterized in that, The battery module system includes: Multiple battery modules as described in any one of claims 5 to 7; Each of the battery modules is connected and arranged in combination via the interlocking device to form a battery module. The connection between each battery module can be any one of stacking vertically, vertically, or horizontally.

9. The battery module system according to claim 8, characterized in that, Adjacent battery modules are connected in series or in parallel.

10. The battery module system according to claim 8, characterized in that, When the battery modules are connected by stacking, there is also a load-bearing bracket between adjacent battery modules to support the battery modules.

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