Explosion-proof robot cylindrical battery compartment with central reinforcing rib

Abstract

The invention discloses an explosion-proof robot cylindrical battery compartment with a central reinforcing rib, relates to the technical field of explosion-proof robots, and solves the comprehensive technical problems that an existing battery compartment is insufficient in structural rigidity, explosion-proof safety and efficient heat dissipation are difficult to consider at the same time, and maintenance is inconvenient due to system dispersion. The battery compartment comprises a first cylindrical cavity and a second cylindrical cavity, wherein the first cylindrical cavity is defined by a cylindrical battery compartment body, a battery compartment top cover and a battery compartment bottom cover and used for containing an integrated battery cell, and the second cylindrical cavity is defined by the battery compartment top cover and a battery top compartment cover and used for containing a circuit board. The core is that a battery reinforcing rib serving as a core bearing and force transmission component is adopted, the reinforcing rib is of a hollow rod-shaped structure and coaxially penetrates through the whole battery cabin and the integrated battery core, and the two ends of the reinforcing rib are detachably connected with a battery top cabin cover and a battery cabin bottom cover, so that the top, the bottom and the barrel body are tensioned into a high-rigidity whole frame. The explosion-proof robot is compact in structure, good in rigidity, explosion-proof, safe, reliable, convenient to assemble and maintain and suitable for high-dynamic and heavy-load explosion-proof robots.

Description

Technical Field

[0001] This invention relates to the field of explosion-proof robot technology, specifically to an explosion-proof robot cylindrical battery compartment with a central reinforcing rib. Background Technology

[0002] Currently, in high-risk explosion-proof environments such as petroleum, chemical, and oil and gas fields, robots have become important equipment to replace manual labor in tasks such as inspection and transportation. As the core energy component of the robot, the battery system's safety, reliability, and energy density directly determine the robot's operational capabilities and applicable scope. Existing explosion-proof robots mostly use square battery compartments or distributed battery arrangements, which suffer from low space utilization, insufficient structural rigidity, and difficulties in disassembly and maintenance.

[0003] While some cylindrical battery compartment structures have shown improvements in space utilization and modular assembly / disassembly, such as the micro-miniature underwater robot battery compartment disclosed in invention publication CN103904263A (published July 2, 2014) and the battery module structure for cylindrical battery compartments disclosed in invention publication CN112968250A (published June 15, 2021), these solutions are structurally complex and lack systematic explosion-proof design for explosion-proof environments, making it difficult to meet the usage requirements of high-dynamic, heavy-load, and strong-vibration conditions such as hydraulic quadruped robots. Furthermore, existing explosion-proof equipment mostly adopts planar or threaded explosion-proof structures, such as the explosion-proof fire-fighting robot chassis disclosed in utility model publication CN208514498U (published January 19, 2019). However, the lack of integrated rigid support and thermal management design limits its application in complex robot platforms.

[0004] More notably, in highly dynamic robots such as those with hydraulic drives, the energy system (battery), thermal management system (cooling), and power system (hydraulics) are typically designed as three independent subsystems, physically connected by external pipes and cables. This discrete architecture results in a bulky, heavy robot with numerous connection points and low reliability. Current technological approaches are limited to optimizing each subsystem internally, lacking a comprehensive solution that deeply integrates multiple systems in terms of physical structure and function, starting from the overall robot configuration.

[0005] Therefore, existing technologies not only lack comprehensive solutions that can simultaneously and collaboratively address the three interconnected and mutually restrictive technical challenges of structural rigidity, explosion-proof safety, and efficient heat dissipation inherent in the battery compartment itself under high dynamic loads, but also fail to meet the urgent needs of next-generation high-performance explosion-proof robots for integrated structure, energy, and power, lightweight design, and high reliability.

[0006] Furthermore, a long-standing technical approach in this field posits that, for the sake of safety and ease of management, a robot's energy system, thermal management system, and power system should be designed as independent modules. This technical bias objectively hinders the exploration of cross-system integrated innovation based on the overall configuration. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an explosion-proof cylindrical battery compartment for robots with a central reinforcing rib. This integrated solution not only addresses the comprehensive technical challenges of insufficient structural rigidity, difficulty in balancing explosion-proof safety and efficient heat dissipation, and inconvenient maintenance inherent in the battery compartment itself, but also aims to break through the limitations of traditional discrete robot system architectures. It achieves deep integration of the robot's energy system, thermal management system, and hydraulic power system in terms of physical structure, thereby providing a core power unit for high-dynamic explosion-proof robots that is highly rigid, highly safe, lightweight, and easy to maintain.

[0008] The technical solution of this invention is:

[0009] Cylindrical battery compartment 1, wherein the cylindrical battery compartment 1 has a cylindrical structure;

[0010] A battery compartment top cover 2 and a battery compartment bottom cover 3 are coaxially nested at the top and bottom of the cylindrical battery compartment 1. The battery compartment top cover 2, the battery compartment bottom cover 3 and the cylindrical battery compartment 1 are assembled to form a first cylindrical cavity.

[0011] An integrated battery cell 4, consisting of multiple battery cells connected in series and coaxially nested within the first cylindrical cavity;

[0012] A battery top cover 5 is coaxially nested at the top of the battery compartment top cover 2. After the battery compartment top cover 2 and the battery top cover 5 are assembled, they form a second cylindrical cavity.

[0013] The circuit board is coaxially nested in the second cylindrical cavity, and the circuit board is connected to the integrated battery cell 4 through multiple wires passing through the top cover 2 of the battery compartment.

[0014] In addition, a battery reinforcing rib 6 serves as the core load-bearing and force-transmitting component. The battery reinforcing rib 6 is a hollow rod-shaped structure that coaxially penetrates the cylindrical battery compartment 1 and the integrated battery cell 4. Both ends of the battery reinforcing rib 6 are detachably fixed to the battery top cover 5 and the battery compartment bottom cover 3, respectively, thereby tightening the battery top cover 5, the cylindrical battery compartment 1, and the battery compartment bottom cover 3 to form a highly rigid overall frame. The battery reinforcing rib 6 also serves as the structural load-bearing skeleton, the carrier of the internal heat dissipation oil circuit, and the reference axis for multiple key explosion-proof joint surfaces, achieving an integrated design for safety performance in terms of force, heat, and explosion.

[0015] The hollow structure inside the battery reinforcing rib 6 forms a hydraulic pipeline 24. The two ends of the hydraulic pipeline 24 are connected to the main hydraulic pipeline system outside the robot through oil-lined bolts 25 and oil-lined studs 26. This allows the battery reinforcing rib 6 to not only perform internal heat dissipation but also serve as a core pressure-bearing pipeline of the robot's overall hydraulic system, thus achieving structural integration of the battery energy system and the robot's hydraulic power system.

[0016] Furthermore, the bottom end of the cylindrical battery compartment 1 is provided with a connecting flange 7 for fixing and restricting the axial movement of the battery compartment bottom cover 3;

[0017] A first cylindrical explosion-proof joint surface 8 is formed between the outer side of the battery compartment bottom cover 3 and the inner side of the cylindrical battery compartment 1, and a first outer O-ring 9 is provided at the first cylindrical explosion-proof joint surface 8.

[0018] The top of the battery compartment bottom cover 3 is provided with a coaxially arranged screw sleeve 10, which is threadedly connected to the bottom end of the battery reinforcing rib 6, and a first threaded explosion-proof mating surface 11 is formed between the screw sleeve 10 and the battery reinforcing rib 6.

[0019] A first central O-ring 12 is provided between the bottom cover 3 of the battery compartment and the battery reinforcing rib 6.

[0020] Furthermore, a first stop 13 is provided on the outer side of the top of the battery compartment cover 2 to restrict the axial movement of the battery compartment cover 2;

[0021] A second cylindrical explosion-proof joint surface 14 is formed between the outer side of the battery compartment top cover 2 and the inner side of the cylindrical battery compartment 1, and a second outer O-ring 15 is provided at the second cylindrical explosion-proof joint surface 14.

[0022] The top center of the battery compartment cover 2 is provided with a first sleeve 16 arranged coaxially, and a third cylindrical explosion-proof joint surface 17 is formed between the inner side of the first sleeve 16 and the outer side of the battery reinforcing rib 6.

[0023] Furthermore, a second stop 18 is provided on the outer side of the middle part of the battery top cover 5 to restrict the axial movement of the battery top cover 5;

[0024] A fourth cylindrical explosion-proof joint surface 19 is formed between the outer side of the battery top cover 5 and the inner side of the cylindrical battery compartment 1, and a third outer O-ring 20 is provided at the fourth cylindrical explosion-proof joint surface 19.

[0025] The bottom center of the battery top cover 5 is provided with a second sleeve 21 arranged coaxially, and a fifth cylindrical explosion-proof joint surface 22 is formed between the inner side of the second sleeve 21 and the outer side of the battery reinforcing rib 6.

[0026] A second central O-ring 23 is provided between the battery top cover 5 and the battery reinforcing rib 6.

[0027] Furthermore, the battery reinforcing rib 6 is provided with a hydraulic pipeline 24 that runs axially through the upper and lower ends of the battery reinforcing rib 6. The upper end of the battery reinforcing rib 6 is threaded with a bolt 25 with an oil passage, and the nut end face of the bolt 25 with an oil passage abuts against the top of the battery top cover 5. The lower end of the battery reinforcing rib 6 is threaded with a stud 26 with an oil passage.

[0028] Furthermore, a first inner O-ring 27 is provided between the outer side of the screw of the oil-lined bolt 25 and the inner side of the battery reinforcing rib 6; a second inner O-ring 28 is provided between the outer side of the screw of the oil-lined stud 26 and the inner side of the battery reinforcing rib 6.

[0029] Furthermore, the top end of the oil-lined bolt 25 is provided with a first quick connector for connecting to an external pipeline; the bottom end of the oil-lined stud 26 is provided with a second quick connector for connecting to an external pipeline.

[0030] Furthermore, a third sleeve 29 is provided at the top of the battery compartment cover 2. The third sleeve 29 is used to pass through and connect multiple wires of the integrated battery cell 4 and the circuit board. The multiple wires and the third sleeve 29 are sealed with FV9007GS two-component epoxy potting compound.

[0031] Furthermore, the top of the battery top cover 5 is provided with a plurality of metal explosion-proof cable connectors 30, and the plurality of metal explosion-proof cable connectors 30 are connected to the circuit board through a plurality of wires, and the metal explosion-proof cable connectors 30 are threadedly connected to the battery top cover 5.

[0032] Furthermore, the electrochemical system of the integrated battery cell 4 is a lithium iron phosphate system.

[0033] Compared with the prior art, the present invention has the following advantages:

[0034] 1. The explosion-proof cylindrical battery compartment for robots with a central reinforcing rib, as described in this invention, achieves an innovative integrated architecture between the robot skeleton and the hydraulic system, representing a breakthrough in system-level integration. The battery reinforcing rib serves as the core load-bearing skeleton of the battery compartment, while its internal hydraulic pipelines directly connect with the built-in oil circuits of the robot's front and rear bodies, forming an integrated main hydraulic channel running through the center of the torso. This makes the reinforcing rib section an indispensable pressure-bearing structural component within this core channel. It overturns the traditional hydraulic connection mode of robots relying on external bypass pipelines, transforming the battery compartment from an independent energy module into a deeply integrated skeleton of the robot's energy, structure, and hydraulic systems. Physically, it avoids any additional external connection oil circuits, fundamentally eliminating the large number of external pipelines, joints, and supports required by traditional solutions. This significantly reduces system complexity, overall weight, and potential leakage points, achieving a leap in system reliability, power density, and lightweighting.

[0035] 2. The explosion-proof cylindrical battery compartment for robots with central reinforcing ribs described in this invention brings revolutionary, highly efficient, and uniform thermal management. Since the battery reinforcing ribs are integrated into the main hydraulic circuit, they naturally form an optimal path for axial active heat dissipation from the geometric center of the cell cluster outwards, relying on a large flow of hydraulic oil. Compared to traditional side-wall attached independent heat dissipation solutions, this solution directly utilizes the powerful heat dissipation capacity of the main hydraulic system, resulting in extremely high heat exchange efficiency. This significantly reduces the core temperature of the battery pack under heavy load and high dynamic conditions, greatly improving the battery's cycle life and operational safety.

[0036] 3. The explosion-proof robot cylindrical battery compartment structure with central reinforcing ribs described in this invention boasts high rigidity and space utilization, laying a solid foundation for safety. Through the coaxial nested compartment structure and the through-type battery reinforcing rib design, a stable spatial truss is formed, significantly improving the overall structural rigidity and effectively resisting impacts and vibrations during robot movement. Simultaneously, the cylindrical structure greatly enhances space utilization.

[0037] 4. The explosion-proof cylindrical battery compartment for robots with central reinforcing ribs described in this invention is explosion-proof, safe, and reliable, and breaks through the lightweight bottleneck of traditional explosion-proof designs. By setting multiple planar and threaded explosion-proof mating surfaces and using O-ring seals, a multi-layered explosion-proof barrier is formed. In particular, the high-rigidity frame composed of battery reinforcing ribs provides a fundamental guarantee for the stability of all precision explosion-proof mating surfaces under vibration and impact. Furthermore, this tensioning frame solution converts the explosion pressure borne by the end cap into a tensile load on the reinforcing ribs, allowing the end cap to significantly reduce its thickness and weight while meeting the same explosion-proof requirements, successfully resolving the contradiction between high explosion-proof ratings and the need for lightweight robots.

[0038] 5. The explosion-proof cylindrical battery compartment for robots with a central reinforcing rib described in this invention offers excellent maintenance convenience. Its modular and detachable connection design (such as threaded connections at both ends of the reinforcing rib, quick connectors, and explosion-proof metal connectors) makes the disassembly and replacement of battery modules, circuit boards, and cooling / hydraulic pipelines extremely convenient, significantly reducing maintenance time compared to traditional solutions.

[0039] 6. The explosion-proof robot cylindrical battery compartment with a central reinforcing rib described in this invention achieves synergistic efficiency across all systems, forming a unified whole. The battery reinforcing rib, as the core component, integrates four major functions: structural support, hydraulic power, thermal management, and explosion-proof safety. These features are interconnected and mutually supportive: the rigid structure forms the basis for safety and integration; hydraulic integration provides efficient heat dissipation and power transmission; and modular design ensures convenient maintenance. Together, they guarantee the battery compartment's ultra-high comprehensive performance and reliability under the complex operating conditions of the explosion-proof robot. This invention, through the battery reinforcing rib as a core component, successfully resolves the long-standing contradictions between high rigidity and lightweight design, between extreme heat dissipation and system separation, and between ultra-high explosion-proof safety and convenient maintenance. Attached Figure Description

[0040] Figure 1 This is a front view of the explosion-proof robot cylindrical battery compartment with central reinforcing ribs described in this invention;

[0041] Figure 2 yes Figure 1 Sectional view at point AA;

[0042] Figure 3 yes Figure 2 Sectional view at BB;

[0043] Figure 4 This is a top view of the explosion-proof robot cylindrical battery compartment with central reinforcing ribs described in this invention;

[0044] Figure 5 yes Figure 4 Sectional view at CC;

[0045] Figure 6 This is an exploded view of the cylindrical battery compartment of the explosion-proof robot with a central reinforcing rib, as described in this invention.

[0046] In the diagram: 1-Cylindrical battery compartment; 2-Battery compartment top cover; 3-Battery compartment bottom cover; 4-Integrated battery cell; 5-Battery top cover; 6-Battery reinforcing rib; 7-Connecting flange; 8-First cylindrical explosion-proof mating surface; 9-First outer O-ring; 10-Threaded sleeve; 11-First threaded explosion-proof mating surface; 12-First central O-ring; 13-First stop; 14-Second cylindrical explosion-proof mating surface; 15-Second outer O-ring; 16-First set 17-Third cylindrical explosion-proof mating surface; 18-Second stop; 19-Fourth cylindrical explosion-proof mating surface; 20-Third outer O-ring; 21-Second sleeve; 22-Fifth cylindrical explosion-proof mating surface; 23-Second central O-ring; 24-Hydraulic pipeline; 25-Oil bolt with oil passage; 26-Oil stud with oil passage; 27-First inner O-ring; 28-Second inner O-ring; 29-Third sleeve; 30-Metal explosion-proof cable connector. Detailed Implementation

[0047] Specific implementation method one: Combining Figures 1 to 6 This embodiment describes an explosion-proof cylindrical battery compartment for a robot with a central reinforcing rib, comprising:

[0048] Cylindrical battery compartment 1, wherein the cylindrical battery compartment 1 has a cylindrical structure;

[0049] A battery compartment top cover 2 and a battery compartment bottom cover 3 are coaxially nested at the top and bottom of the cylindrical battery compartment 1. The battery compartment top cover 2, the battery compartment bottom cover 3 and the cylindrical battery compartment 1 are assembled to form a first cylindrical cavity.

[0050] An integrated battery cell 4, consisting of multiple battery cells connected in series and coaxially nested within the first cylindrical cavity;

[0051] A battery top cover 5 is coaxially nested at the top of the battery compartment top cover 2. After the battery compartment top cover 2 and the battery top cover 5 are assembled, they form a second cylindrical cavity.

[0052] The circuit board is coaxially nested in the second cylindrical cavity, and the circuit board is connected to the integrated battery cell 4 through multiple wires passing through the top cover 2 of the battery compartment.

[0053] In addition, a battery reinforcing rib 6 serves as the core load-bearing and force-transmitting component. The battery reinforcing rib 6 is a hollow rod-shaped structure that coaxially penetrates the cylindrical battery compartment 1 and the integrated battery cell 4. Both ends of the battery reinforcing rib 6 are detachably fixed to the battery top cover 5 and the battery compartment bottom cover 3, respectively, thereby tightening the battery top cover 5, the cylindrical battery compartment 1, and the battery compartment bottom cover 3 to form a high-rigidity overall frame. The battery reinforcing rib 6 also serves as the structural load-bearing skeleton, the carrier of the internal heat dissipation oil circuit, and the reference axis of multiple key explosion-proof joint surfaces, realizing the integrated design of safety performance in terms of force, heat, and explosion.

[0054] The hollow structure inside the battery reinforcing rib 6 forms a hydraulic pipeline 24. The two ends of the hydraulic pipeline 24 are connected to the main hydraulic pipeline system outside the robot through oil-lined bolts 25 and oil-lined studs 26. This allows the battery reinforcing rib 6 to not only perform internal heat dissipation but also serve as a core pressure-bearing pipeline of the robot's overall hydraulic system, thus achieving structural integration of the battery energy system and the robot's hydraulic power system.

[0055] This invention provides a safe and reliable explosion-proof cylindrical battery compartment for robots with a central reinforcing rib: It boasts an ExdIIC-T6Gb explosion-proof rating and IP67 protection, making it suitable for flammable, explosive, dusty, and water-related environments, ensuring the safety of personnel and equipment. The explosion-proof rating complies with the national standard GB3836, reaching the IIC-T6Gb explosion-proof level. Core components employ intrinsically safe / encapsulated design and advanced explosion-proof technology, eliminating the risk of electrical sparks. The IP67 protection rating provides waterproof and dustproof protection, adapting to harsh environments such as dusty, humid, and oil / gas leaks.

[0056] Specific Implementation Method Two: Combining Figures 1 to 6 In this embodiment, the bottom end of the cylindrical battery compartment 1 is provided with a connecting flange 7 for fixing and restricting the axial movement of the battery compartment bottom cover 3;

[0057] A first cylindrical explosion-proof joint surface 8 is formed between the outer side of the battery compartment bottom cover 3 and the inner side of the cylindrical battery compartment 1, and a first outer O-ring 9 is provided at the first cylindrical explosion-proof joint surface 8.

[0058] The top of the battery compartment bottom cover 3 is provided with a coaxially arranged screw sleeve 10, which is threadedly connected to the bottom end of the battery reinforcing rib 6, and a first threaded explosion-proof mating surface 11 is formed between the screw sleeve 10 and the battery reinforcing rib 6.

[0059] A first central O-ring 12 is provided between the battery compartment bottom cover 3 and the battery reinforcing rib 6. This arrangement, via the connecting flange 7, secures and precisely limits the cylindrical battery compartment 1 and the battery compartment bottom cover 3; the engagement of the inner cylindrical surface of the cylindrical battery compartment 1 with the first cylindrical explosion-proof mating surface 8 effectively disperses the bottom impact load; combined with the sealing of the first threaded explosion-proof mating surface 11 and multiple O-rings, a four-fold collaborative protection mechanism of mechanical limiting + planar explosion-proof + threaded explosion-proof + multiple seals is formed at the bottom of the battery compartment. This not only achieves reliable axial positioning but also ensures the absolute integrity of the bottom explosion-proof barrier under extreme operating conditions. Other components and connections are the same as in Specific Embodiment One.

[0060] Specific implementation method three: Combining Figures 1 to 6 In this embodiment, the outer side of the top of the battery compartment cover 2 is provided with a first stop 13 for restricting the axial movement of the battery compartment cover 2.

[0061] A second cylindrical explosion-proof joint surface 14 is formed between the outer side of the battery compartment top cover 2 and the inner side of the cylindrical battery compartment 1, and a second outer O-ring 15 is provided at the second cylindrical explosion-proof joint surface 14.

[0062] The top center of the battery compartment cover 2 is provided with a first sleeve 16 arranged coaxially. A third cylindrical explosion-proof joint surface 17 is formed between the inner side of the first sleeve 16 and the outer side of the battery reinforcing rib 6. This arrangement allows the first stop 13 and the second cylindrical explosion-proof joint surface 14 to jointly resist top impacts, ensuring the overall stability of the cover module. The third cylindrical explosion-proof joint surface 17 formed by the first sleeve 16 and the battery reinforcing rib 6 cleverly transforms the potential risk point of the central through-structure into a new reliable explosion-proof barrier, achieving all-round safety protection from the periphery to the core. Other components and connections are the same as in specific embodiments one or two.

[0063] Specific implementation method four: Combination Figures 1 to 6 In this embodiment, a second stop 18 is provided on the outer side of the middle part of the battery top cover 5 to restrict the axial movement of the battery top cover 5.

[0064] A fourth cylindrical explosion-proof joint surface 19 is formed between the outer side of the battery top cover 5 and the inner side of the cylindrical battery compartment 1, and a third outer O-ring 20 is provided at the fourth cylindrical explosion-proof joint surface 19.

[0065] The bottom center of the battery top cover 5 is provided with a second sleeve 21 arranged coaxially, and a fifth cylindrical explosion-proof joint surface 22 is formed between the inner side of the second sleeve 21 and the outer side of the battery reinforcing rib 6.

[0066] A second central O-ring 23 is provided between the battery top cover 5 and the battery reinforcing rib 6. This arrangement constitutes a multi-layered sealing and explosion-proof barrier at the top, effectively preventing external explosive gases from entering the equipment. Other components and connections are the same as in specific embodiments one, two, or three.

[0067] Specific Implementation Method Five: Combining Figures 1 to 6 In this embodiment, the battery reinforcing rib 6 has an internal hydraulic pipeline 24 running axially through its upper and lower ends. The upper end of the reinforcing rib 6 is threaded with a bolt 25 with an oil passage, the nut end face of which abuts against the top of the battery top cover 5. The lower end of the reinforcing rib 6 is threaded with a stud 26 with an oil passage. This configuration establishes the dual function of the battery reinforcing rib 6 as a core structural component and also as a hydraulic pipeline. Cooling oil circulates through this integrated pipeline, achieving axial, uniform, and efficient heat dissipation of the integrated battery cell 4 from its geometric center. Its thermal management efficiency is far higher than that of traditional externally attached or independent pipeline solutions. Other components and connections are the same as in specific embodiments one, two, three, or four.

[0068] In this embodiment, the battery reinforcing rib 6 is a hollow structure, with an axially extending hydraulic pipeline 24 formed inside. At the upper end of the battery reinforcing rib 6, a threaded bolt 25 with an oil passage is connected, the nut end face of which abuts against the top of the battery top cover 5, serving as an axial lock and seal. At the lower end of the battery reinforcing rib 6, a threaded stud 26 with an oil passage is connected.

[0069] Specific Implementation Method Six: Combination Figures 1 to 6 In this embodiment, a first inner O-ring 27 is provided between the outer side of the screw of the oil passage bolt 25 and the inner side of the battery reinforcing rib 6; a second inner O-ring 28 is provided between the outer side of the screw of the oil passage stud 26 and the inner side of the battery reinforcing rib 6. This arrangement effectively prevents coolant leakage at the inlet / outlet connection, ensuring the long-term reliable operation of the thermal management system. It also optimizes the oil passage sealing. Other components and connections are the same as in specific embodiments one, two, three, four, or five.

[0070] Specific implementation method seven: Combining Figures 1 to 6 In this embodiment, the top of the oil-lined bolt 25 is provided with a first quick connector for connecting to an external pipeline; the bottom of the oil-lined stud 26 is provided with a second quick connector for connecting to an external pipeline. This arrangement facilitates quick plug-and-play connection between the battery compartment and external cooling pipelines, greatly simplifying equipment installation and maintenance. It also increases the convenience of oil line connections. Other components and connections are the same as in specific embodiments one, two, three, four, five, or six.

[0071] Specific implementation method eight: Combination Figures 1 to 6 In this embodiment, the top of the battery compartment cover 2 is provided with a third sleeve 29. The third sleeve 29 is used to pass through multiple wires connecting the integrated battery cell 4 and the circuit board. The multiple wires and the third sleeve 29 are sealed with FV9007GS two-component epoxy potting compound. This arrangement not only fixes the wires but also ensures the sealing and explosion-proof performance where the wires pass through the compartment wall, while also being able to withstand vibration. Other components and connections are the same as in specific embodiments one, two, three, four, five, six, or seven.

[0072] Specific Implementation Method Nine: Combining Figures 1 to 6 In this embodiment, the top of the battery compartment cover 5 is equipped with multiple explosion-proof metal cable connectors 30. These connectors are connected to the circuit board via multiple wires, and are threadedly connected to the battery compartment cover 5. This configuration provides a safe interface compliant with explosion-proof standards for the battery compartment to output power and signals. Other components and connections are the same as in specific embodiments one, two, three, four, five, six, seven, or eight.

[0073] Specific Implementation Method Ten: Combining Figures 1 to 6 This embodiment describes an integrated battery cell 4 whose electrochemical system is a lithium iron phosphate system. This configuration leverages the high safety, long cycle life, and thermal stability of lithium iron phosphate batteries, making them particularly suitable for use in explosion-proof environments with extremely high safety requirements. Other components and connections are the same as in embodiments one, two, three, four, five, six, seven, eight, or nine.

[0074] In this embodiment, the integrated battery cell 4 uses lithium iron phosphate as its electrochemical system.

[0075] Example 1

[0076] Combination Figures 1 to 6 Description of Embodiment 1: The explosion-proof cylindrical battery compartment of the robot with a central reinforcing rib in Embodiment 1 is mainly composed of a cylindrical battery compartment 1, a battery compartment top cover 2, a battery compartment bottom cover 3, an integrated battery cell 4, a battery top cover 5, a circuit board, and a battery reinforcing rib 6.

[0077] The cylindrical battery compartment 1 has a cylindrical structure and serves as the main outer shell.

[0078] The top cover 2 and bottom cover 3 of the battery compartment are coaxially nested and fixed to the top and bottom of the cylindrical battery compartment 1, and the three together form a sealed first cylindrical cavity.

[0079] The integrated battery cell 4 is composed of multiple individual battery cells connected in series, and is cylindrical in shape, coaxially installed in the first cylindrical cavity.

[0080] The battery top cover 5 is coaxially nested and fixed to the top of the battery compartment top cover 2, forming a second cylindrical cavity between the two.

[0081] The circuit board is installed in the second cylindrical cavity and is electrically connected to the integrated battery cell 4 below via a wire passing through the top cover 2 of the battery compartment.

[0082] The battery reinforcing rib 6 is a hollow metal rod that coaxially passes through the entire cylindrical battery compartment 1, the central through hole of the integrated battery cell 4, and the top cover 2 of the battery compartment. The upper end of the battery reinforcing rib 6 is detachably fixed to the top cover 5 of the battery compartment, and the lower end is detachably fixed to the bottom cover 3 of the battery compartment, thereby tightening the top, bottom, and center of the entire battery compartment to form a highly rigid integral structure.

[0083] In this embodiment, the bottom end of the cylindrical battery compartment 1 is provided with a coaxially arranged connecting flange 7 to restrict the upward axial movement of the battery compartment bottom cover 3. The outer cylindrical surface of the battery compartment bottom cover 3 is precisely fitted with the inner cylindrical surface of the cylindrical battery compartment 1 to form a first cylindrical explosion-proof mating surface 8. A first outer O-ring 9 is installed at this mating surface to achieve static sealing. A threaded sleeve 10 is welded or threaded to the center of the top of the battery compartment bottom cover 3. The bottom end of the battery reinforcing rib 6 is machined with an external thread, which engages with the internal thread of the threaded sleeve 10 to form a first threaded explosion-proof mating surface 11. A first central O-ring 12 is also provided at the contact surface between the battery compartment bottom cover 3 and the battery reinforcing rib 6 to enhance the sealing performance at this location.

[0084] In this embodiment, a first stop 13 is provided on the outer side of the top of the battery compartment cover 2 to restrict its axial movement within the cylindrical battery compartment 1. The outer cylindrical surface of the battery compartment cover 2 precisely fits with the inner cylindrical surface of the cylindrical battery compartment 1 to form a second cylindrical explosion-proof joint surface 14, at which a second outer O-ring 15 is installed. A first sleeve 16 extending downward is provided at the center of the top of the battery compartment cover 2. The inner hole of the first sleeve 16 precisely fits with the outer cylindrical surface of the battery reinforcing rib 6 that passes through it to form a third cylindrical explosion-proof joint surface 17.

[0085] Furthermore, an annular stepped shoulder or a raised retaining ring is formed on the outer side of the top of the battery compartment cover 2 through mechanical processing, which constitutes a first stop 13 for limiting its axial movement under downward load within the cylindrical battery compartment 1.

[0086] In this embodiment, a second stop 18 is provided on the outer side of the middle part of the battery top cover 5 to restrict its axial movement. The outer cylindrical surface of the battery top cover 5 is precisely fitted with the inner cylindrical surface of the cylindrical battery compartment 1 to form a fourth cylindrical explosion-proof joint surface 19, and a third outer O-ring 20 is installed at this joint surface. A second sleeve 21 extending downward is provided at the center of the bottom end of the battery top cover 5. The inner hole of the second sleeve 21 is precisely fitted with the outer cylindrical surface of the battery reinforcing rib 6 that passes through it to form a fifth cylindrical explosion-proof joint surface 22. A second central O-ring 23 is also provided at the contact surface between the battery top cover 5 and the battery reinforcing rib 6.

[0087] Furthermore, an annular stepped shoulder or raised retaining ring is formed on the outer side of the middle part of the battery top cover 5 through mechanical processing, which constitutes a second stop 18 for restricting its axial movement within the cylindrical battery compartment 1.

[0088] Working principle

[0089] Combination Figures 1 to 6 Explanation of the working principle of the explosion-proof robot cylindrical battery compartment with central reinforcing rib described in this invention:

[0090] This invention achieves efficient space utilization through a coaxial nested cylindrical cabin structure. A continuous battery reinforcing rib, detachably connected to the end caps, forms the core load-bearing skeleton, significantly improving overall structural rigidity to withstand the robot's dynamic loads. Multiple planar and threaded explosion-proof joint surfaces, supplemented by O-ring seals, are meticulously designed at the junctions of each level of the caps with the main body and with the reinforcing ribs, forming a reliable explosion-proof safety barrier to ensure that potential internal explosions do not leak out. Hydraulic pipelines integrated within the reinforcing ribs circulate with an external cooling system, achieving efficient active heat dissipation for the battery cells. The wires are sealed through the cabin using potting sleeves, and external connections employ explosion-proof connectors, ensuring safe and reliable electrical connections. This modular design, integrating structure, explosion-proof features, thermal management, and electrical connections, gives the battery compartment outstanding advantages such as high safety, high reliability, and ease of maintenance, making it ideal for explosion-proof robots operating in harsh environments.

[0091] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An explosion-proof robot cylindrical battery compartment with a center reinforcing rib, characterized in that, The application relates to a cylindrical battery cabin (1) which is a cylindrical structure. A battery cabin top cover (2) and a battery cabin bottom cover (3) are coaxially nested at the top end and the bottom end of the cylindrical battery cabin (1), and the battery cabin top cover (2), the battery cabin bottom cover (3) and the cylindrical battery cabin (1) form a first cylindrical cavity after being assembled. Integrated battery cells (4) which are formed by connecting a plurality of battery cells in series and are coaxially nested in the first cylindrical cavity. A battery top cabin cover (5) is coaxially nested at the top end of the battery cabin top cover (2), and the battery cabin top cover (2) and the battery top cabin cover (5) form a second cylindrical cavity after being assembled. A circuit board is coaxially nested in the second cylindrical cavity, and the circuit board is connected with the integrated battery cells (4) through a plurality of wires penetrating through the battery cabin top cover (2). A battery reinforcing rib (6) which is a core bearing and force transmission member is provided, the battery reinforcing rib (6) is a hollow rod structure, the battery reinforcing rib (6) coaxially penetrates the cylindrical battery cabin (1) and the integrated battery cells (4), and the two ends of the battery reinforcing rib (6) are detachably fixedly connected with the battery top cabin cover (5) and the battery cabin bottom cover (3) respectively, so that the battery top cabin cover (5), the cylindrical battery cabin (1) and the battery cabin bottom cover (3) are pulled tightly to form a high-rigidity integral frame. The bottom end of the cylindrical battery cabin (1) is provided with a connecting flange (7) for fixing and limiting the axial movement of the battery cabin bottom cover (3).

2. The cylindrical battery compartment of claim 1, wherein, A first cylindrical explosion-proof joint surface (8) is formed between the outer side of the battery cabin bottom cover (3) and the inner side of the cylindrical battery cabin (1), and a first outer O-shaped ring (9) is arranged at the first cylindrical explosion-proof joint surface (8). The top end of the battery cabin bottom cover (3) is provided with a coaxially-arranged screw sleeve (10), the screw sleeve (10) is threadedly connected with the bottom end of the battery reinforcing rib (6), and a first threaded explosion-proof joint surface (11) is formed between the screw sleeve (10) and the battery reinforcing rib (6). A first middle O-shaped ring (12) is arranged between the battery cabin bottom cover (3) and the battery reinforcing rib (6). A first stop (13) is arranged at the top end of the outer side of the battery cabin top cover (2) for limiting the axial movement of the battery cabin top cover (2).

3. The cylindrical battery compartment of claim 1, wherein, A second cylindrical explosion-proof joint surface (14) is formed between the outer side of the battery cabin top cover (2) and the inner side of the cylindrical battery cabin (1), and a second outer O-shaped ring (15) is arranged at the second cylindrical explosion-proof joint surface (14). A first sleeve (16) is coaxially arranged at the center of the top end of the battery cabin top cover (2), and a third cylindrical explosion-proof joint surface (17) is formed between the inner side of the first sleeve (16) and the outer side of the battery reinforcing rib (6). A second stop (18) is arranged at the middle of the outer side of the battery top cabin cover (5) for limiting the axial movement of the battery top cabin cover (5).

4. The cylindrical battery compartment of claim 1, wherein, A fourth cylindrical explosion-proof joint surface (19) is formed between the outer side of the battery top cabin cover (5) and the inner side of the cylindrical battery cabin (1), and a third outer O-shaped ring (20) is arranged at the fourth cylindrical explosion-proof joint surface (19). ​ The battery top hatch (5) is provided with a second sleeve (21) coaxially arranged at the bottom end of the battery top hatch (5), and a fifth cylindrical explosion-proof joint surface (22) is formed between the inner side of the second sleeve (21) and the outer side of the battery reinforcing rib (6). A second middle O-shaped ring (23) is arranged between the battery top hatch (5) and the battery reinforcing rib (6).

5. An explosion-proof robot cylindrical battery cabin with a center reinforcing rib according to any one of claims 1 to 4, characterized in that, The battery reinforcing rib (6) is internally provided with a hydraulic pipeline (24) penetrating the upper end and the lower end of the battery reinforcing rib (6) in the axial direction, the upper end of the battery reinforcing rib (6) is threadedly connected with an oil channel bolt (25), and the nut end surface of the oil channel bolt (25) abuts against the top end of the battery top hatch (5); the lower end of the battery reinforcing rib (6) is threadedly connected with an oil channel stud (26).

6. The cylindrical explosion-proof robot battery compartment with a center stiffener of claim 5, wherein: A first inner O-shaped ring (27) is arranged between the outer side of the screw rod of the oil channel bolt (25) and the inner side of the battery reinforcing rib (6); and a second inner O-shaped ring (28) is arranged between the outer side of the screw rod of the oil channel stud (26) and the inner side of the battery reinforcing rib (6).

7. The cylindrical explosion-proof robot battery compartment with a center stiffener of claim 6, wherein: The top end of the oil channel bolt (25) is provided with a first quick connector for connecting with an external pipeline; and the bottom end of the oil channel stud (26) is provided with a second quick connector for connecting with an external pipeline.

8. The cylindrical explosion-proof robot battery compartment with a center stiffener of claim 1, wherein: The top end of the battery cabin top cover (2) is provided with a third sleeve (29) for penetratingly connecting a plurality of wires of the integrated battery cell (4) and the circuit board, and the plurality of wires and the third sleeve (29) are filled with FV9007GS two-component epoxy sealant.

9. The cylindrical explosion-proof robot battery compartment with a center stiffener of claim 8, wherein: The top end of the battery top hatch (5) is provided with a plurality of metal explosion-proof cable connectors (30), the plurality of metal explosion-proof cable connectors (30) are connected with the circuit board through a plurality of wires, and the metal explosion-proof cable connectors (30) are threadedly connected with the battery top hatch (5).

10. The cylindrical explosion-proof robot battery compartment with a center stiffener of any one of claims 1 or 8, wherein: The electrochemical system of the integrated battery cell (4) is a lithium iron phosphate system.

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