Cable structure for monitoring storage battery and monitoring device based on cable structure

Abstract

The invention discloses a cable structure for storage battery monitoring and a monitoring device based on the cable structure, and the cable structure comprises a connecting mechanism for connecting an acquisition module and a storage battery, and the connecting mechanism is provided with a first connecting part and a second connecting part which are installed on the storage battery, and an acquisition cable connected with the acquisition module. A conductor part of the acquisition cable is inserted and connected into a connecting groove in the lower portion of the second connecting part and forms the lower portion of a vertical first terminal, a second terminal is arranged at the front end of the second connecting part, and a protruding part horizontally penetrating into a connecting hole formed in the upper portion of the first terminal is formed at the rear end of the second terminal. The elastic member is connected to the connection surface of the first terminal and the second terminal, and a part of the elastic member is embedded into the inner circumferential surface of the connection hole. According to the structure, an orthogonal design is adopted, that is, the cable connection direction is orthogonal to the fastening direction of the storage battery, so that the influence of external traction and vibration is avoided, and the stability of electrical connection is ensured by introducing the elastic component.

Description

Technical Field

[0001] This invention relates to the technical field of battery monitoring, and more specifically to a cable structure for battery monitoring and a monitoring device based on the cable structure. Background Technology

[0002] With increasingly stringent reliability requirements for power supply systems, batteries are playing an increasingly important role in substations and UPS systems. As backup power sources, they can provide stable energy to loads in the event of AC power failure. If a battery fails, the stability of the entire power supply system will be severely affected, potentially causing unpredictable losses to downstream users.

[0003] Valve-regulated lead-acid (VRA) batteries, often referred to as "maintenance-free" batteries, significantly reduce the complex maintenance required by traditional open-cell lead-acid batteries. However, it's important to clarify that "maintenance-free" doesn't mean completely maintenance-free; it simply means reducing routine maintenance procedures such as adding water, acid, and changing electrolytes. In reality, routine maintenance of VRA batteries remains essential, especially considering battery quality issues such as material defects, poor structure or manufacturing processes, and improper use, all of which can lead to premature battery failure. Therefore, traditional maintenance methods for open-cell lead-acid batteries are no longer suitable for this new type of battery, posing new challenges to battery testing equipment.

[0004] Currently, while improving battery performance and reducing maintenance workload, the core task of battery operation and management has become how to quickly and effectively detect batteries that fail early and repair them using pulse desulfurization technology. This is especially important for unattended substations, communication equipment rooms, mobile base stations, and UPS systems.

[0005] An existing patent (publication number CN203707502U) provides a cable structure and a battery monitoring device for battery temperature monitoring. This patent offers an adapter structure to connect the signal transmission cable, facilitating cable installation and removal. However, this patent design has certain problems: its terminal arrangement is parallel to the battery's fastening direction and the cable connection direction, and it consists of multiple terminals. This design may cause the contact between the terminals to change over time, and external tension may also affect the connection stability between the terminals.

[0006] To address these issues, we provide a cable structure for battery monitoring and a monitoring device based on this cable structure. Summary of the Invention

[0007] To address the problems of the existing technology, this invention provides a cable structure for battery monitoring. Based on the design concept that the cable connection direction is orthogonal to the battery fastening direction, an orthogonal connection mechanism is constructed, effectively reducing the impact of external tension and vibration on connection stability. Simultaneously, an elastic element is innovatively added to the connection mechanism to ensure the stability and reliability of the electrical connection. By optimizing the assembly method and contact surface between two orthogonally arranged terminals, the spacing between terminals is minimized, significantly improving the assembly effect of the orthogonally arranged terminals. The monitoring device based on this cable structure for battery monitoring realizes a complete monitoring system capable of real-time monitoring of the battery status and data collection and analysis. Through connection with a BIMS monitoring host, remote monitoring and intelligent management can be achieved, improving system efficiency and security.

[0008] To achieve the above objectives, the present invention employs a cable structure for battery monitoring, comprising a connection mechanism for connecting a data acquisition module and a battery. The connection mechanism has a first connection component, a second connection component, and a data acquisition cable for connecting the data acquisition module, all mounted on the battery. The conductor portion of the data acquisition cable is inserted into a connection groove at the lower part of the second connection component, forming the lower part of a vertical first terminal. The front end of the second connection component has a second terminal, and the front end of the second terminal has a insertion groove for a third terminal on the first connection component to penetrate. The rear end of the second terminal has a convex portion that extends horizontally into a connection hole formed at the upper part of the first terminal. An elastic component is connected to the connection surface between the first terminal and the second terminal, and a portion of the elastic component is embedded in the inner circumferential surface of the connection hole.

[0009] The above structure adopts an orthogonal design, that is, the cable connection direction is orthogonal to the battery fastening direction, thus reducing the impact of external tension and vibration, while the introduction of elastic components ensures the stability of the electrical connection.

[0010] As a further optimization of the above solution, a terminal sleeve is provided on the outside of the second terminal. The outer surface of the terminal sleeve has six protrusions forming a hexagonal structure. The outer side of the third terminal has an annular portion. The annular portion and the third terminal surround to form a mounting groove for the terminal sleeve to penetrate. In this structure, the terminal sleeve adopts a hexagonal structure, which can provide a stable connection and prevent the second terminal from rotating accidentally. The mounting groove design facilitates the quick positioning and installation of the terminal sleeve.

[0011] As a further optimization of the above solution, the elastic part includes several arc-shaped elastic plates, which are connected sequentially along the circumferential direction. One surface of the arc-shaped elastic plate contacts the first terminal and the other surface contacts the second terminal. By distributing the arc-shaped elastic plates in the circumferential direction, it is ensured that the connection surface is uniformly stressed. In addition, the arc-shaped elastic plates have a certain degree of elasticity, which can adapt to small deformations and improve the fault tolerance of the connection.

[0012] As a further optimization of the above solution, the second terminal is also connected to a first interlocking structure, and the first connecting component is also provided with a second interlocking structure that cooperates with the first interlocking structure. By setting the interlocking structure, it is ensured that the second terminal will not be accidentally loosened after connection, thereby improving safety.

[0013] As a further optimization of the above solution, the first interlocking structure includes a base, an extension arm, and a plug pin. The base includes a connecting ring that is interference-fitted with the terminal sleeve. The connecting ring is located on the outer surface of the second terminal. The extension arm is connected to the connecting ring, and the plug pin is connected to the extension arm. After the second terminal and the third terminal are mated, the plug pin penetrates into the interior of the second interlocking structure and locks in place.

[0014] The first interlocking structure adopts an interference fit structure between the connecting ring and the terminal sleeve to ensure the stability of the connection between the first interlocking structure and the terminal sleeve. The design of the meshing surface on the connecting ring realizes the tight locking between the connecting ring and the terminal sleeve, improving the connection's robustness. At the same time, the aforementioned plug pins are locked inside the second interlocking structure, which can serve as a direct verification of the connection completion.

[0015] As a further optimization of the above solution, the end of the connecting ring protrudes radially inward along the terminal sleeve to form a protrusion. The protrusion penetrates into the outer surface of the terminal sleeve to form an opening that mates with the protrusion, thereby enhancing the connection stability and positioning accuracy between the connecting ring and the second terminal. The mating of the protrusion and the opening can prevent relative rotation and ensure that all parts remain correctly aligned during operation, thereby improving the mechanical strength and stability of the entire connection.

[0016] As a further optimization of the above solution, the extendable arm includes a first extension portion, a second extension portion, and a fixed portion. One end of the first extension portion is connected to the connecting ring and extends along the connecting ring in a direction perpendicular to the second terminal. The extended end of the first extension portion is connected to the second extension portion so that the second extension portion and the second terminal have a gap. The second extension portion and the first extension portion have an inclination angle of at least 15°-25° in the extension direction. The plug pin is fixed to the second extension portion. The plug pin has a locking unit that protrudes radially outward. The front part of the locking unit has an inclined surface that is inclined in the extension direction. The two sides of the locking unit have stepped units that support the locking block on the second interlocking structure.

[0017] The aforementioned structure employs an inclined, extended arm design to better adapt to and coordinate with other components, while providing a degree of flexibility and reducing stress concentration. The inclined surface and stepped elements of the locking unit enhance the locking effect and stability, preventing accidental loosening or disengagement and improving the overall structural safety and reliability.

[0018] As a further optimization of the above solution, the terminal sleeve has a threaded inlet and a first threaded hole at the top of the threaded inlet on the side facing the extension arm. The horizontal section of the first extension has a second threaded hole corresponding to the position of the first threaded hole. The sleeve passes through the second threaded hole and the first threaded hole in sequence and is fixed to connect the terminal sleeve and the first extension. One end of the sleeve extends into the inner cavity of the terminal sleeve and has a through hole for the second terminal to penetrate. This makes the connection between the terminal sleeve and the first extension more secure, easier to install and disassemble, easier to maintain and replace parts, and avoids the occurrence of deflection.

[0019] To further improve the flexibility and adjustability of the connection, this design allows the other end of the sleeve to pass through the first extension and form an opening. Inside the opening, a detachable plug-in post is provided. One end of the plug-in post is connected to an end cap, while the other end contacts and compresses a compression airbag made of insulating material. One end of the compression airbag contacts the aforementioned second terminal. The end cap also has two corresponding connecting grooves, in which connecting posts are connected. The horizontal section of the first extension has a stepped groove for the end cap to penetrate. After the end cap penetrates the stepped groove, the outer end of the end cap is on the same horizontal plane as the horizontal end of the first extension. The outer surface of the connecting post is provided with a spring piece. After the spring piece enters the mounting hole left on the stepped groove, it snaps into the pre-reserved slot in the mounting hole. The outer center of the end cap has a handle for easy removal of the end cap. On the one hand, the same horizontal plane structure makes it less likely for the external environment to impact or move the end cap, making the end cap more secure. On the other hand, the planar structure is more aesthetically pleasing.

[0020] Furthermore, the outer surface of the plug-in post is provided with an annular sealing air cushion. The compression airbag is connected to the sealing air cushion through an air guide tube. When the compression airbag is compressed, it transfers gas to the compression air cushion, causing the compression air cushion to expand and tighten around the plug-in post. On the one hand, this achieves fixation and sealing of the plug-in post, limiting its position and providing a certain amount of friction to prevent it from moving due to external forces. On the other hand, some of the gas from the compression airbag is transferred to the compression air cushion, so that the compression airbag does not excessively compress the second terminal during the compression process, achieving flexible fixation of the second terminal. At the same time, compared with the spiral compression structure, the plug-in compression structure does not apply torque to the compression airbag during the compression process, avoiding the possibility of the compression airbag being twisted due to rotation and potentially damaged.

[0021] As a further optimization of the above solution, a monitoring device based on a cable structure for battery monitoring includes a battery, a cable structure for battery monitoring, a data acquisition module, and a BIMS monitoring host. The battery is connected to the data acquisition module via the cable structure for battery monitoring as described in any of the claims above. The data acquisition module is electrically connected to the BIMS monitoring host, thus realizing a complete monitoring system capable of real-time monitoring of the battery status and data collection and analysis. Through connection with the BIMS monitoring host, remote monitoring and intelligent management can be achieved, improving system efficiency and security.

[0022] The cable structure for battery monitoring and the monitoring device based on the cable structure of the present invention have the following beneficial effects: 1. The cable structure for battery monitoring of the present invention, based on the design concept that the cable connection direction is orthogonal to the battery fastening direction, constructs an orthogonal connection mechanism, effectively reducing the impact of external tension and vibration on connection stability. Simultaneously, an elastic element is innovatively added to the connection mechanism to ensure the stability and reliability of the electrical connection. By optimizing the assembly method and contact surface between two orthogonally arranged terminals, the spacing between terminals is minimized, significantly improving the assembly effect of the orthogonally arranged terminals.

[0023] 2. The cable structure for battery monitoring of the present invention adopts an interference fit structure between the connecting ring and the terminal sleeve in the auxiliary interlocking structure to ensure the stability of the connection between the first interlocking structure and the terminal sleeve. The design of the meshing surface on the connecting ring realizes the tight locking between the connecting ring and the terminal sleeve, improving the connection's firmness. At the same time, the aforementioned plug pins are locked inside the second interlocking structure, which can serve as a direct verification of the connection completion.

[0024] 3. The cable structure for battery monitoring of the present invention adopts an inclined elongated arm structure to better adapt to and cooperate with other components, while providing a certain degree of elasticity and reducing stress concentration. The inclined surface and stepped unit of the locking unit increase the locking effect and stability, prevent accidental loosening or disengagement, and improve the safety and reliability of the overall structure.

[0025] 4. The cable structure for battery monitoring of the present invention features a threaded sleeve structure design, which makes the connection between the terminal sleeve and the first extension part more secure, and is easy to install and disassemble, facilitating maintenance and component replacement.

[0026] 5. The monitoring device based on the cable structure for battery monitoring of the present invention realizes a complete monitoring system capable of real-time monitoring of battery status and data collection and analysis. Through connection with the BIMS monitoring host, remote monitoring and intelligent management can be achieved, improving system efficiency and security.

[0027] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope as a result, and the embodiments of the present invention include many changes, modifications and equivalents. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the cable structure used for battery monitoring. Figure 2 This is a schematic diagram of the structure of the first terminal in this invention; Figure 3 This is a schematic diagram of the structure of the first connecting component in this invention; Figure 4 This is a schematic diagram of the structure of the second connecting component in this invention; Figure 5 This is a schematic diagram of the elastic component in this invention; Figure 6 This is a schematic diagram of the base structure in this invention; Figure 7 This is a schematic diagram of the structure of the extendable arm in this invention; Figure 8 This is a schematic diagram of the connector pin structure in this invention; Figure 9 This is a schematic diagram of the sleeve structure in this invention; Figure 10 This is a schematic diagram of the end cap structure in this invention; Figure 11 This is a schematic diagram of the structure of the compression airbag in this invention; Figure 12 This is a schematic diagram of the monitoring device based on a cable structure for battery monitoring in this invention.

[0029] In the diagram: 1. Acquisition module; 11. Battery; 2. Connection mechanism; 21. First connecting component; 211. Third terminal; 212. Annular part; 213. Mounting slot; 22. Second connecting component; 221. Connecting slot; 23. Acquisition cable; 231. Conductor part; 3. First terminal; 4. Second terminal; 41. Plug-in slot; 42. Protruding part; 5. Elastic component; 51. Arc-shaped elastic plate; 6. Terminal sleeve; 61. Protrusion; 62. Opening; 63. First threaded hole; 7. First interlocking structure; 71. Base; 711. Connecting ring; 712. Protrusion; 72. Extension arm; 721. First extension portion; 722. Second extension portion; 723. Second threaded hole; 73. Plug pin; 731. Locking unit; 732. Inclined surface; 733. Stepped unit; 8. Sleeve; 81. Through hole; 82. Opening; 83. Plug pin; 84. End cap; 841. Connecting groove; 842. Connecting pin; 843. Stepped groove; 844. Spring; 845. Mounting hole; 846. Slot; 847. Handle; 85. Compression airbag; 86. Compression air cushion; 87. Air duct; 9. BIMS monitoring host. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of the invention.

[0031] It should be noted that when an element is referred to as "set on" or "provided with" another element, it can be directly on the other element or there may be an intermediate element. When an element is referred to as "connected to" or "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. "Fixed connection" means fixed connection. There are many ways of fixed connection, which are not within the scope of protection of this document. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in the specification herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Please refer to the instruction manual appendix. Figure 1-12 This invention provides an embodiment of a cable structure for battery monitoring. In this embodiment, the core of the cable structure is the connection mechanism 2 that connects the acquisition module 1 and the battery 11, which specifically consists of the following parts: The connecting mechanism 2 includes a first connecting component 21 and a second connecting component 22, both of which are designed to be installed on the battery 11. The conductor portion 231 of the acquisition cable 23 is vertically inserted into the connecting groove 221 at the lower part of the second connecting component 22 to form the lower part of the vertical first terminal 3. The front end of the second connecting component 22 is provided with a second terminal 4, and its front end is provided with an insertion groove 41 for the third terminal 211 on the first connecting component 21 to penetrate. The rear end has a convex portion 42 that extends horizontally into the connecting hole formed at the upper part of the first terminal 3.

[0033] The orthogonal design ensures that the cable connection direction is perpendicular to the fastening direction of the battery 11, minimizing the impact of external tension and vibration on connection stability.

[0034] The introduction of the elastic component 5, which is provided at the connection surface between the first terminal 3 and the second terminal 4, ensures the stability of the electrical connection under external influences.

[0035] The terminal sleeve 6 and the mounting groove 213 are designed such that the second terminal 4 is covered by the terminal sleeve 6. The outer surface of the terminal sleeve 6 has six protrusions 61, which makes its outer surface designed as a hexagonal structure to provide a stable connection and prevent the second terminal 4 from rotating accidentally. The outer side of the third terminal 211 has an annular part 212, which together with the third terminal 211 forms the mounting groove 213, which facilitates the quick positioning and installation of the terminal sleeve 6.

[0036] The arc-shaped elastic plate 51 is composed of several arc-shaped elastic plates 51, which are evenly distributed along the circumference to ensure that the connection surface is uniformly stressed. In this structure, the arc-shaped elastic plate 51 has a certain elasticity, which can adapt to small deformations and improve the fault tolerance of the connection.

[0037] The interlocking structure design includes a first interlocking structure 7 on the second terminal 4, comprising a base 71, an extension arm 72, and a plug pin 73. The first connecting component 21 is provided with a second interlocking structure that matches the first interlocking structure 7. The base 71 is a connecting ring 711 that is interference-fitted with the terminal sleeve 6. The extension arm 72 is connected to the connecting ring 711, and the plug pin 73 is connected to the extension arm 72 and inserted into the corresponding slot to ensure that the second terminal 4 will not accidentally come loose after connection.

[0038] To further enhance the connection stability and reliability of this solution, the connecting ring 711 has an inwardly protruding bump 712 at its end along the radial direction of the terminal sleeve 6. This bump 712 precisely penetrates into the corresponding opening 62 on the outer surface of the terminal sleeve 6, forming a tight fit. This significantly enhances the connection stability and positioning accuracy between the connecting ring 711 and the second terminal 4, effectively preventing relative rotation and ensuring that all parts maintain the correct alignment during operation, thereby significantly improving the mechanical strength and stability of the entire connection.

[0039] The structure of the aforementioned extendable arm 72 is further refined, comprising a first extension portion 721, a second extension portion 722, and a fixing portion 723. The first extension portion 721 extends from the connecting ring 711, its extension direction perpendicular to the second terminal 4, while the second extension portion 722 connects to the first extension portion 721, forming an angle of 15° to 25° with it. This design not only better adapts to cooperation with other components but also provides necessary flexibility, effectively reducing stress concentration.

[0040] The plug pin 73 is fixed to the second extension portion 722. The plug pin 73 has a locking unit 731 that protrudes radially outward. The front part of the locking unit 731 has an inclined surface 732 that is inclined in the extension direction. The two sides of the locking unit 731 have stepped units 733 that support the locking block on the second interlocking structure. The design of the locking unit 731 increases the locking effect and stability, effectively prevents accidental loosening or disengagement, and improves the safety and reliability of the overall structure.

[0041] To enhance the connection stability between the terminal sleeve 6 and the first extension portion 721, while ensuring ease of installation and disassembly, this design incorporates a threaded inlet on the side of the terminal sleeve 6 facing the extension arm 72, with a first threaded hole 63 at its top. Correspondingly, the horizontal section of the first extension portion 721 has a second threaded hole 723 that matches the position of the first threaded hole 63. By passing the sleeve 8 sequentially through the second threaded hole 723 and the first threaded hole 63 and securing it, a secure connection between the terminal sleeve 6 and the first extension portion 721 is achieved. This design not only facilitates installation and disassembly but also subsequent maintenance and component replacement.

[0042] It should be noted that while the sleeve 8 achieves a firm connection between the terminal sleeve 6 and the first extension portion 721, it also has a through hole 81 at one end of the sleeve 8 for the second terminal 4 to penetrate, thereby locking and limiting the position of the second terminal 4 and preventing the second terminal 4 from shifting during insertion.

[0043] To further improve the flexibility and adjustability of the connection, this design allows the other end of the sleeve 8 to pass through the first extension 721 and form an opening 82. A detachable insertion post 83 is provided inside the opening 82. One end of the insertion post 83 is connected to an end cap 84, while the other end contacts and compresses a compression air bladder 85 made of insulating material. One end of the compression air bladder 85 contacts the aforementioned second terminal 4. The end cap 84 also has two corresponding connecting grooves 841, within which the connecting post 842 is connected. A stepped groove 8 is provided on the horizontal section of the first extension 721 for the end cap 84 to penetrate. 43. After the end cap 84 is inserted into the stepped groove 843, the outer end of the end cap 84 and the horizontal end of the first extension 721 are on the same horizontal plane. The outer surface of the connecting post 842 is provided with a spring piece 844. After the spring piece 844 enters the mounting hole 845 left on the stepped groove 843, the spring piece 844 is locked into the slot 846 reserved in the mounting hole 845. The outer center of the end cap 84 is provided with a handle 847 to facilitate the removal of the end cap 84. On the one hand, the same horizontal plane structure makes it less likely for the external environment to impact or move the end cap, making the end cap 84 more firmly fixed; on the other hand, the planar structure is more aesthetically pleasing.

[0044] Furthermore, the outer surface of the insertion post 83 is provided with an annular sealing air cushion 86. The compression airbag 85 is connected to the sealing air cushion 86 through an air guide pipe 87. When the compression airbag 85 is compressed, it transmits gas to the compression air cushion 86, causing the compression air cushion 86 to expand and tighten around the insertion post. On the one hand, this achieves the fixation and sealing of the insertion post 83, limiting its position and providing a certain amount of friction to prevent the insertion post 83 from moving due to external forces. On the other hand, some of the gas from the compression airbag 85 is transmitted to the compression air cushion 86, so that the compression airbag 85 does not excessively compress the second terminal 4 during the compression process, achieving flexible fixation of the second terminal 4. At the same time, compared with the spiral compression structure, the insertion compression structure does not apply torque to the compression airbag 85 during the compression process, avoiding the possibility of the compression airbag 85 being twisted due to rotation and potentially damaged.

[0045] The cable structure for battery monitoring provided in this embodiment operates as follows: S1. Install connection mechanism 2: The placement of the first connecting component 21 and the second connecting component 22 involves installing the first connecting component 21 and the second connecting component 22 respectively in the corresponding positions of the storage battery 11; Insertion of the acquisition cable 23: The conductor portion 231 of the acquisition cable 23 is vertically inserted into the connecting groove 221 at the lower part of the second connecting component 22 until the lower part of the vertical first terminal 3 is formed.

[0046] S2. Orthogonal connection: Ensure that the cable connection direction is perpendicular to the fastening direction of the battery 11 to minimize the impact of external tension and vibration on connection stability.

[0047] S3. Introduce elastic component 5: An elastic component 5 (such as a spring or elastic pad) is provided at the connection surface between the first terminal 3 and the second terminal 4 to ensure the stability of the electrical connection under external influences.

[0048] S4. Install terminal sleeve 6 and set mounting slot 213: Install terminal sleeve 6, which is a hexagonal structure, and place it over the outside of the second terminal 4 to provide a stable connection and prevent the second terminal 4 from rotating accidentally.

[0049] An mounting groove 213 is provided, and an annular portion 212 is provided on the outside of the third terminal 211, which together with the third terminal 211 forms the mounting groove 213, facilitating the quick positioning and installation of the terminal sleeve 6.

[0050] S5. Install the arc-shaped elastic plate 51: Several arc-shaped elastic plates 51 are installed on the connecting surface, and they are evenly distributed along the circumference to ensure uniform force distribution on the connecting surface. The arc-shaped elastic plates 51 are elastic to accommodate small deformations and improve the fault tolerance of the connection.

[0051] S6. Design and install interlocking structures: Install the connecting ring 711 on the first terminal 3 and ensure that it is interference-fitted with the terminal sleeve 6.

[0052] The extended arm 72 is further subdivided into a first extension portion 721 and a second extension portion 722. The first extension portion 721 extends from the connecting ring 711 and forms an angle with the second extension portion 722.

[0053] Install the connector 73 on the extension arm 72 and insert it into the corresponding slot to ensure that the second terminal 4 will not come loose accidentally after connection.

[0054] S7. Enhanced connection stability and reliability: A protruding bump 712 is designed at the end of the connecting ring 711 along the radial direction of the terminal sleeve 6. The protruding bump 712 penetrates into the corresponding opening 62 on the outer surface of the second terminal 4 to form a tight fit structure, thereby enhancing connection stability and positioning accuracy.

[0055] In summary, the cable structure for battery monitoring described in the first embodiment, based on the design concept that the cable connection direction is orthogonal to the battery 11 fastening direction, constructs an orthogonal connection mechanism 2, effectively reducing the impact of external tension and vibration on connection stability. Simultaneously, an elastic element is innovatively added to the connection mechanism 2 to ensure the stability and reliability of the electrical connection. By optimizing the assembly method and contact surface between the two orthogonally arranged terminals, the spacing between the terminals is minimized, significantly improving the assembly effect of the orthogonally arranged terminals.

[0056] Please refer to the instruction manual appendix. Figure 1-12 Based on the above embodiment of the cable structure for battery monitoring, we apply this cable structure to the monitoring device of battery 11, which specifically consists of the following parts: The device includes a battery 11, a cable structure for battery monitoring, a data acquisition module 1, and a BIMS monitoring host 9. The battery 11 is connected to the data acquisition module 1 via the cable structure for battery monitoring as described in the embodiment above. The data acquisition module 1 is electrically connected to the BIMS monitoring host 9.

[0057] Specifically, the monitoring device in this embodiment, without changing the existing main wiring method and operating mode of the power system, divides the 11 groups of batteries into several groups through a center tap. Each group is connected to the acquisition module 1 and the monitoring host through the cable structure used for battery monitoring as described above, and is connected to the DC bus. This enables intelligent operation and maintenance functions such as real-time status monitoring of the batteries 11, active voltage balancing, and automatic online capacity assessment. It provides an effective technical means for comprehensively understanding the performance status of the batteries 11, extending the service life of the batteries 11, providing fault warnings, and identifying potential hazards. While improving the power supply reliability of the power system, it significantly reduces the operation and maintenance cost of the batteries 11.

[0058] The specific testing content includes the following aspects: Single-cell battery voltage detection: The system monitors the voltage of each individual cell to prevent individual cell voltage from exceeding limits and to determine voltage balance logic.

[0059] Single-cell charge and discharge current detection, and individual cell charge and discharge current detection, reflect relevant curve analysis and provide insights into the health status of the battery.

[0060] Battery pack total voltage detection is used to prevent the system batteries from being overcharged or over-discharged.

[0061] Temperature detection (battery / environment): Battery temperature detection reflects the actual changes inside the battery, enabling timely detection of thermal runaway batteries.

[0062] Internal resistance testing automatically and periodically measures the internal resistance of each battery cell, automatically analyzes its changing trends, and issues early warnings for batteries with poor performance.

[0063] Battery balancing allows you to set a voltage difference and automatically balance the battery voltage to make it more consistent.

[0064] The system allows for online automatic / manual capacity verification. It can verify the capacity of battery 11 remotely or locally, or be set to perform verification at set time intervals. Automatic capacity verification eliminates the need for a complex manual capacity verification process, making the process more accurate and safer, and allowing users to monitor the health status of the battery in real time.

[0065] Pulse desulfation involves applying pulse desulfation charging to batteries with high internal resistance during the battery charging process, based on the battery's internal resistance. This enhances the battery's chemical activity, reduces its internal resistance, and eliminates sulfation.

[0066] In summary, the monitoring device based on the cable structure for battery monitoring supports real-time online monitoring of the operating status of battery 11, enabling visualized management, real-time monitoring of the status of battery 11 and data collection and analysis. Through connection with the BIMS monitoring host 9, remote monitoring and intelligent management can be achieved, improving the efficiency and security of the system.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cable structure for battery monitoring, characterized in that: The connection mechanism (2) includes a connection acquisition module (1) and a battery (11). The connection mechanism (2) has a first connection component (21), a second connection component (22) installed on the battery (11) and an acquisition cable (23) connecting the acquisition module (1). The conductor portion (231) of the acquisition cable (23) is inserted into the connection groove (221) connected to the lower part of the second connection component (22) and forms the lower part of the vertical first terminal (3). The front end of the second connection component (22) is provided with a second terminal (4). The front end of the second terminal (4) forms a insertion groove (41) for the third terminal (211) on the first connection component (21) to penetrate. The rear end of the second terminal (4) forms a convex portion (42) that extends horizontally into the connection hole formed on the upper part of the first terminal (3). An elastic component (5) is connected to the connection surface of the first terminal (3) and the second terminal (4), and part of the elastic component (5) is embedded in the inner circumferential surface of the connection hole.

2. The cable structure for battery monitoring according to claim 1, characterized in that: The second terminal (4) is fitted with a terminal sleeve (6), and the outer surface of the terminal sleeve (6) is provided with six protrusions (61) forming a hexagonal structure. The outer side of the third terminal (211) is provided with an annular portion (212), and the annular portion (212) and the third terminal (211) surround each other to form an installation groove (213) for the terminal sleeve (6) to penetrate.

3. The cable structure for battery monitoring according to claim 2, characterized in that: The elastic part includes several arc-shaped elastic plates (51), which are connected sequentially along the circumferential direction. One of the arc-shaped elastic plates (51) contacts the first terminal (3) and the other plate contacts the second terminal (4).

4. The cable structure for battery monitoring according to claim 3, characterized in that: The second terminal (4) is also connected to a first interlocking structure (7), and the first connecting component (21) is also provided with a second interlocking structure that is a cooperating structure with the first interlocking structure (7).

5. The cable structure for battery monitoring according to claim 4, characterized in that: The first interlocking structure (7) includes a base (71), an extension arm (72), and a plug pin (73). The base (71) includes a connecting ring (711) that is interference-fitted with the terminal sleeve (6). The connecting ring (711) is located on the outer surface of the second terminal (4). The extension arm (72) is connected to the connecting ring (711). The plug pin (73) is connected to the extension arm (72). After the second terminal (4) and the third terminal (211) are mated, the plug pin (73) penetrates into the interior of the second interlocking structure and locks.

6. The cable structure for battery monitoring according to claim 5, characterized in that: The end of the connecting ring (711) protrudes radially inward along the terminal sleeve (6) to form a protrusion (712). The protrusion (712) penetrates into the outer surface of the terminal sleeve (6) to form an opening (62) that is in mate with the protrusion (712).

7. The cable structure for battery monitoring and the monitoring device based on the cable structure according to claim 6, characterized in that: The extendable arm (72) includes a first extension portion (721) and a second extension portion (722). One end of the first extension portion (721) is connected to the connecting ring (711) and extends along the connecting ring (711) in a direction perpendicular to the second terminal (4). The extended end of the first extension portion (721) is connected to the second extension portion (722) so that the second extension portion (722) and the second terminal (4) have a gap. The second extension portion (722) and the first extension portion (721) have an inclination angle of at least 15°-25° in the extension direction. The plug pin (73) is fixed to the second extension portion (722). The plug pin (73) has a locking unit (731) that protrudes radially outward. The front part of the locking unit (731) has an inclined surface (732) that is inclined in the extension direction. The two sides of the locking unit (731) have stepped units (733) that support the locking block on the second interlocking structure.

8. The cable structure for battery monitoring according to claim 7, characterized in that: The terminal sleeve (6) has a threaded inlet and a first threaded hole (63) at the top of the threaded inlet on the side facing the extension arm (72). The horizontal section of the first extension portion (721) has a second threaded hole (723) corresponding to the position of the first threaded hole (63). The sleeve (8) passes through the second threaded hole (723) and the first threaded hole (63) in sequence and is fixed to connect the terminal sleeve (6) and the first extension portion (721). One end of the sleeve (8) extends into the inner cavity of the terminal sleeve (6) and a through hole (81) is opened on the sleeve (8) for the second terminal (4) to penetrate.

9. The cable structure for battery monitoring according to claim 8, characterized in that: The other end of the sleeve (8) passes through the first extension (721) and forms an opening (82). A detachable plug-in post (83) is provided inside the opening (82). One end of the plug-in post (83) is connected to an end cap (84), and the other end contacts and compresses a compression airbag (85) made of insulating material. One end of the compression airbag (85) contacts the second terminal (4). The end cap (84) is also provided with two corresponding connecting grooves (841). The connecting grooves (841) are connected to the connecting post (842). The horizontal section of the first extension (721) is provided with a stepped groove (843) for the end cap (84) to penetrate. After the end cap (84) penetrates the stepped groove (843), the outer end of the end cap (84) connects to the first extension. The horizontal ends of the branch (721) are located on the same horizontal plane. The outer surface of the connecting post (842) is provided with a spring piece (844). After the spring piece (844) enters the mounting hole (845) left on the stepped groove (843), the spring piece (844) is inserted into the slot (846) reserved in the mounting hole (845). The outer center of the end cap (84) is provided with a handle (847) for easy removal of the end cap (84). The outer surface of the plug post (83) is provided with an annular sealing air cushion (86). The compression airbag (85) is connected to the sealing air cushion (86) through the air guide pipe (87). After the compression airbag (85) is compressed, it transmits gas to the compression air cushion (86) and causes the compression air cushion (86) to expand and tighten the plug post.

10. The monitoring device based on a cable structure for battery monitoring according to claim 8, characterized in that: The device includes a battery (11), a cable structure for battery monitoring, a data acquisition module (1), and a BIMS monitoring host (9). The battery (11) is connected to the data acquisition module (1) via the cable structure for battery monitoring as described in any one of claims 1-9. The data acquisition module (1) is electrically connected to the BIMS monitoring host (9).

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