Detachable battery unit connecting system for energy storage equipment

Abstract

The invention relates to the field of energy storage equipment, and discloses a detachable battery unit connecting system for energy storage equipment, the detachable battery unit connecting system comprises an energy storage shell, the side wall of the bottom end of the energy storage shell is provided with an external connector, and the surface of the front end of the energy storage shell is rotatably connected with an opening and closing door; and a plurality of groups of energy storage modules are detachably mounted on the side wall of the inner side of the energy storage shell through supporting modules. Through an adjustable quick-release connecting mechanism and a synchronous insertion design, the efficiency problem of traditional step-by-step operation is solved: after an energy storage module is mounted on a mechanical arm, a distance sensor identifies the position of the module, and an electric telescopic rod drives a connecting plate to approach synchronously; four groups of plugging connection between the liquid outlet connector and the liquid cooling water outlet, between the liquid inlet connector and the liquid cooling water inlet, between the strong current plug and the strong current terminal, and between the weak current plug and the weak current terminal are completed at one time; during disassembly, the electric telescopic rod shrinks, the four groups of connections are separated synchronously, and the one-way valve of the liquid cooling interface is closed automatically to prevent leakage.

Description

Technical Field

[0001] This invention relates to the field of energy storage equipment technology, specifically to a detachable battery cell connection system for energy storage equipment. Background Technology

[0002] Energy storage devices are devices that store energy through a medium or technology and release it when needed. Their core function is to enable flexible allocation of energy in time and space to improve the stability, economy and sustainability of energy systems.

[0003] In fields such as new energy storage power stations, emergency power supply systems, and electric vehicle battery swapping stations, energy storage equipment requires frequent disassembly and reassembly of battery units (energy storage modules) for maintenance, replacement, and capacity expansion. The "disassembly and reassembly efficiency, compatibility, and reliability" of the connection system directly determine the operation and maintenance costs and operational stability of the energy storage system. However, existing battery unit connection systems for energy storage equipment have significant technical pain points, making it difficult to meet the industry's development needs for "automation, high adaptability, and low loss." However, existing energy storage module connections must be completed separately: electrical connections (high-voltage / low-voltage terminals) and liquid cooling connections (inlet / outlet). Disassembly requires manually plugging and unplugging the high-voltage / low-voltage connectors first, then unscrewing the liquid cooling pipe connectors or unlocking the clips, a cumbersome process (each disassembly and assembly takes 20-30 minutes). Installation requires reversing the operation and precise alignment of the two sets of interfaces, which is prone to deviation. This step-by-step operation is not compatible with automated operation and maintenance by robotic arms. In large-scale energy storage power stations (where dozens of modules need to be disassembled and assembled simultaneously), it not only prolongs downtime but may also lead to liquid cooling leaks or poor electrode contact due to human error. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a detachable battery cell connection system for energy storage devices. This system solves the problem that such step-by-step operations cannot be adapted to automated operation and maintenance by robotic arms. In large-scale energy storage power stations (where dozens of modules need to be disassembled and assembled simultaneously), this not only prolongs downtime but may also lead to liquid cooling leakage or poor electrode contact due to human error.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a detachable battery unit connection system for energy storage devices, comprising an energy storage housing, an external connector provided on the side wall at the bottom of the energy storage housing, an integral opening and closing door provided at the front end of the energy storage housing, the opening and closing door being rotatably connected to the front surface of the energy storage housing, multiple energy storage modules being detachably installed on the inner side wall of the energy storage housing via a support module, a liquid cooling plate provided on the lower surface of the energy storage module, a liquid cooling inlet provided on the left side surface of the liquid cooling plate, a liquid cooling outlet provided on the right side surface of the liquid cooling plate, a high-voltage terminal provided on the left side surface of the energy storage module, a low-voltage terminal also provided on the left side surface of the energy storage module, and an adjustable quick-release connection mechanism provided on the inner side wall of the opening and closing door; The adjustable quick-release connection mechanism is used to quickly disconnect the connection lines of the energy storage module when the internal energy storage module is disassembled by a robotic arm.

[0006] Preferably, the adjustable quick-release connection mechanism includes a fixed frame, with multiple sets of distance sensors on the outer sidewall of the fixed frame, and multiple sets of electric telescopic rods fixedly connected to the center of the fixed frame. A connecting block is fixedly connected to the telescopic end of each electric telescopic rod, and a connecting plate is fixedly connected to the end of the connecting block away from the electric telescopic rod. A liquid outlet connector is fixedly connected to one side of the connecting plate, and a connecting seat is fixedly connected to the other side of the connecting plate.

[0007] Preferably, a connecting hose a is fixedly connected to the rear end of the liquid outlet connector, a liquid inlet connector is provided at the center of the connector, a connecting hose b is connected and fixedly connected to the rear end of the liquid inlet connector, a high-voltage plug is provided on the left side surface of the connector, and a low-voltage plug is provided on the right side surface of the connector.

[0008] Preferably, the surface of the opening and closing door is fixedly connected to multiple sets of support seats, the inner wall of the support seat is fixedly connected to a connecting column, the center of the connecting column is fixedly connected to a fixing plate, the inner wall of the connecting column and the fixing plate are connected by a connecting cable, and the inner side wall of the support seat is elastically connected to a winding cover by a spiral spring.

[0009] Preferably, the inner side of the opening and closing door is provided with a cavity, and both the connecting hose a and the connecting hose b pass through the interior of the opening and closing door cavity and are connected to the energy storage shell.

[0010] Preferably, the fixing frame is fixedly connected to the center of the inner surface of the door, and the distance sensor is electrically connected to the electric telescopic rod.

[0011] Preferably, the high-voltage plug is electrically connected to the high-voltage terminal, and the connecting hose b is electrically connected to the low-voltage terminal.

[0012] Preferably, the liquid outlet connector is plugged into the liquid cooling outlet, and the liquid inlet connector is plugged into the liquid cooling inlet.

[0013] Preferably, one end of the spiral spring is fixedly connected to the inner sidewall of the support base, and the other end of the spiral spring is fixedly connected to the surface of the rear end of the winding cover.

[0014] Preferably, the winding cover is rotatably connected to the surface of the front end of the support base, and the connecting cable passes through and is fixedly connected to the inner wall of the support base and is electrically connected to the energy storage shell.

[0015] This invention provides a detachable battery cell connection system for energy storage devices. It offers the following advantages: 1. This invention addresses the efficiency bottleneck of traditional step-by-step operations through an adjustable quick-release connection mechanism and synchronous plug-in design: After the robotic arm installs the energy storage module, a distance sensor identifies the module's position, and the electric telescopic rod drives the connecting plate to move closer synchronously, completing four sets of plug-ins in one go: the liquid outlet connector to the liquid cooling outlet, the liquid inlet connector to the liquid cooling inlet, the high-voltage plug to the high-voltage terminal, and the low-voltage plug to the low-voltage terminal. During disassembly, the electric telescopic rod retracts, the four sets of connections disengage synchronously, and the one-way valve of the liquid cooling interface automatically closes to prevent leakage. The entire process requires no step-by-step operation, reducing the single disassembly and assembly time to 1 / 4 of the traditional method, perfectly adapting to automated robotic arm operation and maintenance, and is especially suitable for high-frequency disassembly and assembly scenarios in large-scale energy storage power stations.

[0016] 2. This invention breaks through the limitations of traditional customization by employing a dynamic adaptation design based on distance sensing and electric telescopic movement: the distance sensor identifies energy storage modules of different lengths and widths in real time, transmitting position signals to the electric telescopic pole; the electric telescopic pole drives the connecting plate to flexibly adjust the spacing and position, ensuring precise alignment of the power / low-voltage plugs and liquid-cooled connectors with the interfaces of modules of different specifications, eliminating the need to replace plugs, connectors, or mounting brackets. This design is compatible with energy storage modules with length differences of ±10cm and width differences of ±5cm, improving adaptability by 80% compared to traditional systems, significantly reducing the modification costs when replacing modules, and meeting the flexible expansion needs of energy storage equipment. 3. This invention solves the problem of messy and worn cable hoses through a storage structure using a spiral spring and a winding cover: When the connecting plate moves, the connecting cable is pulled out, and the spiral spring in the support base deforms under force; after disassembly, the spiral spring elastically returns to its original position, driving the winding cover to rotate and automatically winding the cable to a neat state; the telescopic connecting hoses a / b can extend and retract synchronously with the connecting plate, avoiding bending and blockage. This design reduces the wear rate of the cable insulation layer to below 5% and the breakage rate of the liquid-cooled hose to below 3%, extending the service life of accessories (by 2-3 times) and preventing messy cables from interfering with interface alignment, ensuring the stability of power transmission and liquid cooling circulation. Attached Figure Description

[0017] Figure 1This is a perspective view of the open / closed door of the present invention in its open state; Figure 2 This is a three-dimensional schematic diagram of the entire invention; Figure 3 This is a schematic diagram of the energy storage module and energy storage housing in the separated state of the present invention; Figure 4 This is a schematic diagram of the adjustable quick-release connection structure of the present invention; Figure 5 This is a schematic diagram showing the connection plate and the fixing frame separated in the present invention; Figure 6 This is a three-dimensional structural diagram of the connector of the present invention; Figure 7 This is a partial cross-sectional view of the connecting block of the present invention.

[0018] The components include: 1. Energy storage shell; 2. External connector; 3. Opening door; 4. Energy storage module; 5. Support module; 6. High-voltage terminal; 7. Low-voltage terminal; 8. Liquid cooling inlet; 9. Liquid cooling outlet; 10. Adjustable quick-release connection mechanism; 1001. Fixing frame; 1002. Distance sensor; 1003. Electric telescopic rod; 1004. Connecting block; 1005. Connecting plate; 1006. Liquid outlet connector; 1007. Connecting hose a; 1008. Connecting seat; 1009. Liquid inlet connector; 1010. Connecting hose b; 1011. High-voltage plug; 1012. Low-voltage plug; 1013. Support seat; 1014. Connecting column; 1015. Fixing plate; 1016. Connecting cable; 1017. Spiral spring; 1018. Winding cover; 11. Liquid cooling plate; 12. Overall opening door. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0020] Please see the appendix Figure 1 - Appendix Figure 7This invention provides a detachable battery unit connection system for an energy storage device, including an energy storage housing 1. An external connector 2 is provided on the side wall at the bottom of the energy storage housing 1. Multiple energy storage modules 4 are installed inside the energy storage housing 1, and their wiring is connected to the energy storage housing 1. The energy storage modules 4 can then perform discharge operations through the external connector 2. An integral opening and closing door 12 is provided at the front end of the energy storage housing 1, and an opening and closing door 3 is rotatably connected to the front surface of the energy storage housing 1. Multiple energy storage modules 4 are detachably installed on the inner side wall of the energy storage housing 1 via a support module 5. The lower surface of the energy storage modules 4 is provided with… A liquid cooling plate 11 is provided. A liquid cooling inlet 8 is provided on the left side surface of the liquid cooling plate 11, and a liquid cooling outlet 9 is provided on the right side surface of the liquid cooling plate 11. By providing a liquid cooling inlet 8 and a liquid cooling outlet 9, liquid cooling water can enter evenly from the liquid cooling inlet 8 and circulate inside the liquid cooling plate 11 to cool the energy storage module 4, and flow out from the liquid cooling outlet 9 to form a circulation system. A high-voltage terminal 6 is provided on the left side surface of the energy storage module 4, and a low-voltage terminal 7 is also provided on the left side surface of the energy storage module 4. An adjustable quick-release connection mechanism 10 is provided on the inner side wall of the opening and closing door 3. The adjustable quick-release connection mechanism 10 is used to quickly disconnect the connection lines of the energy storage module 4 when the internal energy storage module 4 is disassembled by the robotic arm.

[0021] Furthermore, the adjustable quick-release connection mechanism 10 includes a fixing frame 1001. Multiple distance sensors 1002 are located on the outer sidewall of the fixing frame 1001. By using the distance sensors 1002, energy storage modules 4 of different lengths can be identified, thereby determining the distance between them and the corresponding liquid outlet connector 1006 and connector 1008, and transmitting an electrical signal to the electric telescopic rod 1003. Multiple electric telescopic rods 1003 are fixedly connected to the center of the fixing frame 1001. The fixing frame 1001 is fixedly connected to the center of the inner surface of the opening / closing door 3. The distance sensors 1002 are electrically connected to the electric telescopic rods 1003. Multiple sets of telescopic rods 1003 are provided, with two rods in each set. The connecting blocks 1004 can be moved by the two sets of electric telescopic rods 1003, thereby causing the connecting plates 1005 to move outward synchronously. This allows for adjustment according to the connection ends of the energy storage modules 4 with different widths. The telescopic end of the electric telescopic rod 1003 is fixedly connected to the connecting block 1004, and the end of the connecting block 1004 away from the electric telescopic rod 1003 is fixedly connected to the connecting plate 1005. Driven by the electric telescopic rods 1003, the corresponding connecting block 1004 can be moved outward, thereby causing the connecting plate 1005 to fit against the energy storage module 4.

[0022] Specifically, a liquid outlet connector 1006 is fixedly connected to one side of the connecting plate 1005, and a connecting hose a1007 is fixedly connected to the rear end of the liquid outlet connector 1006. A liquid inlet connector 1009 is provided at the center of the connecting seat 1008. The liquid outlet connector 1006 is inserted into the liquid cooling outlet 9, and the liquid inlet connector 1009 is inserted into the liquid cooling inlet 8. The insertion between the two allows liquid cooling water to enter from the liquid inlet connector 1009 into the liquid cooling inlet 8, and to be discharged from the liquid outlet connector 1006 through the liquid cooling outlet 9, thus forming a circulating cooling system. At the same time, both the liquid cooling inlet 8 and the liquid cooling outlet 9 adopt plug-in open one-way valves. The insertion of the liquid outlet connector 1006 into the liquid inlet connector 1009 opens the valve body, and the valve automatically closes when disconnected. A connecting hose b10 is connected and fixedly connected to the rear end of the liquid inlet connector 1009. 10. A cavity is provided inside the opening and closing door 3. Both connecting hoses a1007 and b1010 pass through the cavity of the opening and closing door 3 and are connected to the energy storage shell 1. Both connecting hoses a1007 and b1010 are telescopic hoses. When the connecting plate 1005 moves, it will drive the connecting hoses a1007 and b1010 to extend and retract, thereby ensuring the stable circulation and delivery of liquid cooling water. A high-voltage plug 1011 is provided on the left side surface of the connecting seat 1008. The high-voltage plug 1011 is electrically connected to the high-voltage terminal 6, and the connecting hose b1010 is electrically connected to the low-voltage terminal 7. The connection of the two can electrically connect the energy storage module 4 to the energy storage shell 1, thereby ensuring the stable delivery of power. A low-voltage plug 1012 is provided on the right side surface of the connecting seat 1008. The connecting seat 1008 is fixedly connected to the other side of the connecting plate 1005.

[0023] Furthermore, multiple sets of support seats 1013 are fixedly connected to the surface of the opening and closing door 3. A connecting column 1014 is fixedly connected to the inner wall of each support seat 1013. A fixing plate 1015 is fixedly connected to the center of each connecting column 1014. A connecting cable 1016 is fixedly connected through the inner walls of the connecting column 1014 and the fixing plate 1015. By passing the connecting cable 1016 through the interior of the support seat 1013, the connecting column 1014, and the fixing plate 1015, and then through the opening and closing door 3 to connect with the energy storage housing 1, the transmission of stored power is achieved. A winding cover 1018 is elastically connected to the inner side wall of the support seat 1013 via a spiral spring 1017. One end of the spiral spring 1017 is fixedly connected to... The inner sidewall of the support base 1013 has the other end of the spiral spring 1017 fixedly connected to the rear end surface of the winding cover 1018. The winding cover 1018 is rotatably connected to the front end surface of the support base 1013. The outer arc surface of the winding cover 1018 has a slot, allowing the fixing plate 1015 to pass through its interior and connect to the corresponding high-voltage plug 1011 and low-voltage plug 1012. When the connecting plate 1005 moves, it will drive the connecting cable 1016 to unfold. When it moves backward, the winding cover 1018 will automatically reset due to the elastic action of the spiral spring 1017. The connecting cable 1016 passes through and is fixedly connected to the inner wall of the support base 1013 and is electrically connected to the energy storage housing 1.

[0024] Working principle: After the energy storage module 4 is installed onto the support module 5 inside the energy storage housing 1 by the robotic arm, multiple distance sensors 1002 on the fixing frame 1001 inside the opening and closing door 3 will identify the length of the energy storage module 4, determine its distance from the liquid outlet connector 1006 and the connecting seat 1008, and transmit electrical signals to the electric telescopic rod 1003. The electric telescopic rod 1003 drives the connecting block 1004 to move according to the signal, driving the connecting plate 1005 to move closer to the energy storage module 4 until the liquid outlet connector 1006 on one side of the connecting plate 1005 is inserted into the liquid cooling outlet 9 of the liquid cooling plate 11 on the lower surface of the energy storage module 4, and the liquid inlet connector 1009 on the connecting seat 1008 on the other side of the connecting plate 1005 is inserted into the liquid cooling inlet 8. At the same time, the high-voltage plug on the left side of the connecting seat 1008... The head 1011 is electrically connected to the high-voltage terminal 6 on the left side of the energy storage module 4, and the low-voltage plug 1012 on the right side of the connector 1008 is electrically connected to the low-voltage terminal 7. Since the liquid cooling inlet 8 and the liquid cooling outlet 9 are plug-in open one-way valves, the valve body opens after plugging in, and the liquid cooling water enters the liquid cooling plate 11 through the connecting hose b1010, the liquid inlet connector 1009, and the liquid cooling inlet 8. After absorbing the heat of the energy storage module 4, it is discharged from the liquid cooling outlet 9, the liquid outlet connector 1006, and the connecting hose a1007, forming a circulating cooling system. When the connecting plate 1005 moves, the telescopic connecting hose a1007 and the connecting hose b1010 extend and retract accordingly. At the same time, the connecting cable 1016 is pulled out, and the spiral spring 1017 in the support base 1013 is deformed under force to ensure the stability of the connection.

[0025] When it is necessary to disassemble the energy storage module 4, first control the electric telescopic rod 1003 to retract, driving the connecting block 1004 and connecting plate 1005 away from the energy storage module 4, so that the high-voltage plug 1011 is disconnected from the high-voltage terminal 6 and the low-voltage plug 1012 is disconnected from the low-voltage terminal 7. At the same time, the liquid outlet connector 1006 is separated from the liquid cooling outlet 9 and the liquid inlet connector 1009 is separated from the liquid cooling inlet 8, and the one-way valves of the liquid cooling inlet 8 and the liquid cooling outlet 9 are automatically closed; during the movement of the connecting plate 1005, the stretched connecting cables are... Under the elastic reset action of the spiral spring 1017 inside the support base 1013, 1016 drives the winding cover 1018 to rotate, winding and organizing the connecting cable 1016; then rotate to open the opening and closing door 3 at the front end of the energy storage housing 1, and with the cooperation of the support module 5, the robotic arm can quickly grip and remove the energy storage module 4; throughout the process, the connecting cable 1016 always maintains a stable connection with the energy storage housing 1 through the connecting post 1014 and the fixing plate 1015, ensuring the reliability of the connection during subsequent reinstallation.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detachable battery cell connection system for an energy storage device, comprising an energy storage housing (1), characterized in that, An external connector (2) is provided on the side wall at the bottom of the energy storage housing (1). An integral opening and closing door (12) is provided at the front end of the energy storage housing (1). An opening and closing door (3) is rotatably connected to the front surface of the energy storage housing (1). Multiple sets of energy storage modules (4) are detachably installed on the inner side wall of the energy storage housing (1) through a support module (5). A liquid cooling plate (11) is provided on the lower surface of the energy storage module (4). A liquid cooling inlet (8) is provided on the left side surface of the liquid cooling plate (11). A liquid cooling outlet (9) is provided on the right side surface of the liquid cooling plate (11). A high-voltage terminal (6) is provided on the left side surface of the energy storage module (4). A low-voltage terminal (7) is also provided on the left side surface of the energy storage module (4). An adjustable quick-release connection mechanism (10) is provided on the inner side wall of the opening and closing door (3). The adjustable quick-release connection mechanism (10) is used to quickly disconnect the connection lines of the energy storage module (4) when the internal energy storage module (4) is disassembled by the robotic arm.

2. The detachable battery cell connection system for an energy storage device according to claim 1, characterized in that, The adjustable quick-release connection mechanism (10) includes a fixed frame (1001), with multiple sets of distance sensors (1002) on the outer sidewall of the fixed frame (1001). Multiple sets of electric telescopic rods (1003) are fixedly connected to the center of the fixed frame (1001). A connecting block (1004) is fixedly connected to the telescopic end of the electric telescopic rod (1003). A connecting plate (1005) is fixedly connected to one end of the connecting block (1004) away from the electric telescopic rod (1003). A liquid outlet connector (1006) is fixedly connected to one side of the connecting plate (1005), and a connecting seat (1008) is fixedly connected to the other side of the connecting plate (1005).

3. A detachable battery cell connection system for an energy storage device according to claim 2, characterized in that, The rear end of the liquid outlet connector (1006) is fixedly connected to a connecting hose a (1007), and the center of the connector (1008) is provided with a liquid inlet connector (1009). The rear end of the liquid inlet connector (1009) is connected to and fixedly connected to a connecting hose b (1010). A high-voltage plug (1011) is provided on the left side surface of the connector (1008), and a low-voltage plug (1012) is provided on the right side surface of the connector (1008).

4. A detachable battery cell connection system for an energy storage device according to claim 2, characterized in that, The surface of the opening and closing door (3) is fixedly connected to multiple sets of support seats (1013). The inner wall of the support seat (1013) is fixedly connected to a connecting column (1014). A fixing plate (1015) is fixedly connected at the center of the connecting column (1014). The inner wall of the connecting column (1014) and the fixing plate (1015) are connected by a connecting cable (1016). The inner side wall of the support seat (1013) is elastically connected to a winding cover (1018) by a spiral spring (1017).

5. A detachable battery cell connection system for an energy storage device according to claim 1, characterized in that, The inner side of the opening and closing door (3) is provided with a cavity, and the connecting hose a (1007) and the connecting hose b (1010) both pass through the cavity of the opening and closing door (3) and are connected to the energy storage shell (1).

6. A detachable battery cell connection system for an energy storage device according to claim 2, characterized in that, The fixing frame (1001) is fixedly connected to the center of the inner surface of the opening and closing door (3), and the distance sensor (1002) is electrically connected to the electric telescopic rod (1003).

7. A detachable battery cell connection system for an energy storage device according to claim 3, characterized in that, The high-voltage plug (1011) is electrically connected to the high-voltage terminal (6), and the connecting hose b (1010) is electrically connected to the low-voltage terminal (7).

8. A detachable battery cell connection system for an energy storage device according to claim 3, characterized in that, The liquid outlet connector (1006) is plugged into the liquid cooling outlet (9), and the liquid inlet connector (1009) is plugged into the liquid cooling inlet (8).

9. A detachable battery cell connection system for an energy storage device according to claim 4, characterized in that, One end of the spiral spring (1017) is fixedly connected to the inner side wall of the support base (1013), and the other end of the spiral spring (1017) is fixedly connected to the surface of the rear end of the winding cover (1018).

10. A detachable battery cell connection system for an energy storage device according to claim 4, characterized in that, The winding cover (1018) is rotatably connected to the front surface of the support base (1013), and the connecting cable (1016) passes through and is fixedly connected to the inner wall of the support base (1013) and is electrically connected to the energy storage shell (1).

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