Modular elevator communication unit traveling cable

Abstract

The utility model provides a modular elevator communication unit traveling cable. The modular elevator communication unit traveling cable comprises an outer sheath, a tensile element and a communication unit, the tensile elements are symmetrically arranged at the left end and the right end of the outer sheath; a plurality of communication units are arranged and distributed in the middle of the outer sheath; each communication unit is a composite structure of various communication lines; the traveling cables of the modular elevator communication unit can be connected in an overlaid mode. According to the utility model, the common wire core and the communication unit of the traveling cable are designed separately, so that the universality and the flexibility are high, and the design efficiency can be improved; meanwhile, a power supply line is separated from a communication line, so that the isolation of electromagnetic interference is facilitated; the problem that communication signals are interfered is avoided, and product performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator traveling cable technology, and in particular to a modular elevator communication unit traveling cable. Background Technology

[0002] Elevator traveling cables are generally composed of a fixed number of ordinary wire cores twisted and arranged, used for communication and power supply between the elevator car and the control system. A cross-sectional diagram of the traveling cable is attached. Figure 6 , Figure 6 The structure includes a tension element (a), a conductor (b), an insulating layer (c), and a sheath layer (d).

[0003] Appendix Figure 7 Wiring diagram for elevators without additional functions: Traveling cable e from elevator car f → control system g;

[0004] When an elevator needs to be equipped with a monitoring system, video broadcasting system, or other communication equipment, an additional communication unit is required for signal transmission from the elevator car to the customer monitoring center. In this case, a communication unit needs to be added to the traveling cable; a cross-sectional diagram is attached. Figure 8 , Figure 8 The components include a load-bearing element (a), a conductor (b), an insulating layer (c), a sheath layer (d), and a communication unit (h).

[0005] Appendix Figure 9 Wiring diagram for adding monitoring, video and other communication equipment to an elevator: Traveling cable e from elevator car f → control system g → converter i → monitoring center j;

[0006] The aforementioned elevator traveling cable includes the following defects:

[0007] 1. The accompanying cable with ordinary wire cores and communication units mixed together has poor versatility and is not conducive to design selection: Whether the number and structure of ordinary wire cores or the number and structure of communication units change, the layout and production need to be redesigned, which is inefficient.

[0008] 2. The complex hybrid structure of the accompanying cable leads to an increase in the weight of the cable. The suspension components also need to be designed and manufactured according to the changes in the combined structure of the accompanying cable. Mass production is impossible due to the different equipment (molds) used in production, which greatly reduces design and production efficiency and increases production input, resulting in higher costs.

[0009] 3. The accompanying cable is large in size and heavy in weight, which causes inconvenience to the project installation;

[0010] 4. The elevator's power supply line and communication line are in the same cable, which is not conducive to the isolation of electromagnetic interference; it can easily lead to interference with communication signals, affecting product quality or causing elevator malfunctions.

[0011] 5. In the communication unit, the optical fiber unit is an independent unit. Due to the characteristics of optical fiber, it is easily affected by bending, tension, etc., so the optical fiber unit with this structure is easily damaged and the core is broken, which affects communication.

[0012] 6. In the traveling cable, the ordinary core wires are connected from the elevator car to the control system, while the communication unit is connected from the elevator car to the control system to the converter to the monitoring center. The length requirements of the two are different. At this time, the communication unit needs to be connected or converted in the middle, which often results in poor performance and affects the communication quality. At the same time, the communication unit also increases the wiring distance in the hoistway, wastes cable, and increases costs.

[0013] In the field of elevator technology, traveling cables play a crucial role, and their performance directly affects various aspects of elevator operation, including stability, safety, and communication quality. However, traditional elevator traveling cables have revealed a series of significant defects and shortcomings in practical applications.

[0014] Firstly, the hybrid traveling cable architecture, which combines ordinary conductors and communication units, suffers from a significant limitation in design flexibility. When faced with adjustments to the number or structure of ordinary conductors, or increases or decreases in the number or optimization of communication units, the entire traveling cable design must be completely redesigned, requiring a replanning of everything from conductor arrangement to the overall manufacturing process. This inefficient design not only consumes substantial human, material, and time resources but also severely restricts the rapid iteration and customization capabilities of elevator products, making it impossible to respond promptly to diverse market demands.

[0015] Secondly, the complex hybrid structure of traditional traveling cables leads to a significant increase in their weight. On the one hand, the excessive weight of the cable places higher demands on the elevator's suspension system, making the design and manufacturing of suspension components extremely complex. Due to the diversity of cable combination structures, it is difficult to standardize the production of suspension components, necessitating specialized design and custom processing for each cable structure. This undoubtedly increases the investment in production equipment and the demand for diverse molds, ultimately leading to a sharp rise in production costs. On the other hand, the installation of the large and heavy cable within the elevator shaft is extremely inconvenient, requiring more manpower and time, and installation accuracy is difficult to guarantee, further affecting the overall installation efficiency and quality of the elevator.

[0016] Thirdly, poor electromagnetic compatibility is another significant problem with traditional traveling cables. Power supply and communication lines are integrated into the same cable. During elevator operation, electromagnetic interference generated by the power supply line can easily and severely affect signal transmission in the communication line. Signal interference may cause the elevator control system to receive incorrect command information, leading to elevator malfunctions such as accidental stops or malfunctions, seriously threatening passenger safety and the normal service life of the elevator equipment.

[0017] Fourth, the fiber optic structure in traditional communication units has inherent weaknesses. Because fiber optics exist as independent units, their material properties make them extremely sensitive to bending and stretching. During the long-term, frequent operation of elevators, the traveling cable inevitably experiences various external forces, such as the lifting and lowering of the car and vibrations within the shaft. These factors can easily cause the fiber optic cable to bend or stretch excessively, leading to core breakage. Once the fiber optic core breaks, the elevator's communication system will suffer severe damage, resulting in communication interruption or a significant decrease in signal transmission quality, affecting the elevator's normal monitoring and scheduling functions.

[0018] Fifth, the traditional traveling cable has unreasonable wiring methods. The wiring paths of ordinary core cables and communication units are inconsistent. Ordinary core cables are usually connected directly from the car to the control system, while the communication unit needs to be connected from the car to the control system first, and then through a converter before connecting to the monitoring center. This complex wiring method not only increases the wiring length of the communication unit, resulting in wasted cable materials and increased costs, but also makes the signal prone to attenuation and distortion during the connection and conversion process, seriously affecting the communication quality and the reliability of elevator operation.

[0019] In summary, traditional elevator traveling cables have serious shortcomings in terms of versatility, production efficiency, ease of installation, electromagnetic compatibility, fiber optic protection, and wiring rationality. There is an urgent need for an innovative elevator traveling cable solution to overcome these problems and meet the increasingly higher performance requirements and safety standards of modern elevator technology. Utility Model Content

[0020] The purpose of this utility model is to provide a modular elevator communication unit traveling cable, which separates the ordinary core of the traveling cable from the communication unit, resulting in higher versatility and flexibility, and improving design efficiency; at the same time, it separates the power supply line from the communication line, which is beneficial for electromagnetic interference isolation; avoids the problem of communication signal interference, and improves product performance.

[0021] To achieve the above objectives, this utility model provides the following technical solution: a modular elevator communication unit traveling cable, comprising an outer sheath, a tension element, and a communication unit; the tension element is symmetrically arranged at the left and right ends of the outer sheath; multiple communication units are provided and arranged in the middle of the outer sheath; each communication unit is a composite structure of various communication lines; the modular elevator communication unit traveling cables can be stacked and connected.

[0022] As a further improvement to the technical solution of this utility model, the communication unit includes twisted pair I, twisted pair II, optical cable I, optical cable II, a shielding layer and an inner sheath layer; the twisted pair I, twisted pair II, optical cable I and optical cable II are twisted together and then covered by the shielding layer; the inner sheath layer wraps around the shielding layer.

[0023] As a further improvement to the technical solution of this utility model, the communication unit includes a first wire conductor, a second wire conductor, a first optical fiber core, a second optical fiber core, an inner insulation layer, a shielding layer, and an inner sheath layer; the first wire conductor, the second wire conductor, the first optical fiber core, and the second optical fiber core are all integrated on the inner insulation layer; the shielding layer covers the inner insulation layer; and the inner sheath layer wraps around the inner insulation layer.

[0024] As a further improvement to the technical solution of this utility model, one end of the traveling cable of the modular elevator communication unit is electrically connected to the elevator car, and the other end is electrically connected to the monitoring center; the middle part of the traveling cable of the modular elevator communication unit is suspended in the middle of the shaft.

[0025] As a further improvement to the technical solution of this utility model, when the cable requires greater tensile strength, the twisted pair and optical cable in the communication unit are twisted together with the tensile element.

[0026] This utility model discloses a modular elevator communication unit traveling cable, which consists of a communication unit, an outer cable sheath, and a tensile element. The communication unit is a relatively independent individual component of the modular cable, a composite structure of various communication lines, such as twisted pair + optical fiber, network cable + optical fiber, or coaxial cable + optical fiber. One composite structure includes twisted pair one, twisted pair two, optical fiber one, and optical fiber two, which are attached together by twisting, covered with a metal shielding layer, and then wrapped by an inner sheath. Twisted pair has a certain degree of bending and tensile strength, and the attachment and twisting of the optical fiber with the twisted pair gives the optical fiber the same bending and tensile strength as the twisted pair. When the cable requires greater tensile strength, the twisted pair, optical fiber, and tensile element can be twisted together to achieve a good tensile effect. Alternatively, the twisted pair + optical fiber can be directly transformed into a single integrated structure where the insulation layers of the twisted pair and optical fiber are still twisted, achieving good bending and tensile strength. The modular elevator communication unit's traveling cable is designed with a fixed double array of communication units. During installation, these units can be stacked as needed. This design separates the elevator's power supply and communication lines into two different cables, facilitating electromagnetic interference isolation and preventing signal interference. It also solves the problem of complex and variable hybrid structures in traveling cables, which previously hindered mass production due to varying equipment (molds), significantly improving efficiency. Furthermore, it eliminates the need for repetitive design and production of cable suspension components based on changes in the traveling cable's assembly structure. The fixed number of communication units offers high versatility and flexibility. When used in elevators, the cable does not need to be routed to the control system for connection or intermediate conversion before reaching the monitoring center. Only the length required for the car's vertical movement (suspended in the middle of the shaft) needs to be reserved before direct connection to the monitoring center, significantly reducing wiring distance.

[0027] This utility model has the following beneficial effects:

[0028] First, it represents a qualitative leap in versatility and flexibility. By designing the ordinary conductors and communication units of the traveling cable separately, and adopting a unique architecture where the communication units are fixed in double arrays and can be stacked, the problem of redesigning and manufacturing due to changes in the structure of the conductors and communication units is effectively solved. Whether it is the ordinary conductors or the communication units, when adjusting the quantity and structure, only the corresponding modules need to be flexibly combined or replaced, without the need for large-scale redesign and manufacturing of the entire cable system. This greatly improves design efficiency and can quickly adapt to the diverse changes in different elevator models and functional requirements, providing elevator manufacturers with a more convenient and efficient product customization solution.

[0029] Secondly, it achieves remarkable results in production efficiency and cost control. Its fixed structural design allows for a high degree of standardization in the production process, enabling large-scale mass production with only one or a few sets of general-purpose equipment (molds). Compared to the traditional, complex, and ever-changing production model for mobile cables, it significantly reduces investment in production equipment, mold development and management costs, and the time and manpower wasted due to frequent adjustments to production processes. Simultaneously, the stable and efficient production process ensures consistent and reliable product quality, effectively reducing the defect rate, further lowering production costs, and enhancing the product's price competitiveness in the market.

[0030] Furthermore, from an engineering installation perspective, it offers significant advantages in terms of convenience. Its compact design allows for smaller and lighter traveling cables for the modular elevator communication unit. In the narrow and relatively complex space of the elevator shaft, installers can more easily and conveniently lay and secure the cables, effectively reducing the manpower, time costs, and labor intensity required for installation. In addition, the lighter cable weight puts less stress on the elevator's suspension system, which helps extend the service life of suspension components and reduces the maintenance costs and frequency of the elevator system.

[0031] Fourth, it excels in electromagnetic interference isolation. Innovatively, the elevator's power supply and communication lines are separated into two different cables within the traveling cable, effectively blocking the electromagnetic coupling path between them from a physical structural perspective. This design greatly minimizes the impact of electromagnetic interference from the power supply line on the communication signal, ensuring stable and reliable communication signal transmission quality. It significantly reduces the elevator malfunction rate caused by electromagnetic interference, such as communication interruptions and misoperations, effectively guaranteeing the safety and stability of elevator operation and improving the overall performance and passenger comfort.

[0032] Fifth, the composite structure inside the communication unit provides the optical cable with excellent bending and tensile protection. By rationally twisting the twisted pair with the optical cable, or using an integrated insulation layer twisting structure, the bending and tensile properties of the twisted pair are fully utilized, effectively distributing the external forces borne by the optical cable during elevator operation. This composite structure design effectively solves the problem of core breakage caused by the susceptibility to bending and tension in traditional optical fiber units, significantly improving the reliability and durability of the communication unit, ensuring the long-term stable operation of the elevator communication system, reducing elevator maintenance and repair work caused by optical fiber failures, and lowering elevator operating costs and downtime.

[0033] Finally, the unique wiring method brings significant cost reduction and performance improvement to the elevator system. When the modular elevator communication unit's traveling cable is installed in the elevator, it eliminates the need for traditional cables to be first routed to the control system and then connected or converted at an intermediate point before being routed to the monitoring center. Instead, it only requires reserving enough length for the car's vertical movement and hanging it in the middle of the hoistway before directly connecting to the monitoring center. This simple and efficient wiring method significantly shortens the wiring distance of the communication unit, reduces the amount of cable material used, and thus effectively reduces cable procurement and installation costs. At the same time, the shorter wiring distance reduces the risk of signal attenuation and distortion during transmission, improves the quality and transmission speed of communication signals, and ensures timely and accurate information exchange between the elevator control system and the monitoring center, further enhancing the elevator's operating efficiency and intelligent management level.

[0034] In summary, the modular elevator communication unit traveling cable of this utility model, with its significant advantages in versatility, production efficiency, ease of installation, electromagnetic compatibility, optical cable protection, and wiring methods, provides the elevator industry with a more advanced, reliable, and cost-effective traveling cable solution, possessing extremely high practical value and broad market application prospects. Attached Figure Description

[0035] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0036] Figure 1 This is a schematic diagram of the structure of the traveling cable of a modular elevator communication unit according to this utility model;

[0037] Figure 2 This is one of the structural schematic diagrams of the communication unit of this utility model;

[0038] Figure 3 This is the second schematic diagram of the communication unit of this utility model;

[0039] Figure 4 This is a schematic diagram of the superimposed structure between the traveling cables of the modular elevator communication unit of this utility model;

[0040] Figure 5 This is a schematic diagram showing the distribution of the traveling cable of the modular elevator communication unit of this utility model inside the elevator;

[0041] Figure 6 This is a schematic diagram of the existing elevator traveling cable structure;

[0042] Figure 7 Wiring diagram for an elevator without additional functions;

[0043] Figure 8When an elevator needs to be equipped with a monitoring system, video broadcasting system or other communication equipment, an additional communication unit is required for signal transmission from the elevator car to the customer monitoring center. In this case, a structural diagram of adding a communication unit to the traveling cable is required.

[0044] Figure 9 Wiring diagram for adding monitoring, video and other communication equipment to an existing elevator.

[0045] In the attached diagram: 100 - Modular elevator communication unit traveling cable; 1 - Outer sheath; 2 - Tension-bearing element; 3 - Communication unit; 4 - Elevator car; 5 - Monitoring center; 6 - Middle of the shaft; 7 - Control system; 31 - Conductor 1; 32 - Conductor 2; 33 - Fiber optic core 1; 34 - Fiber optic core 2; 35 - Inner insulation layer; 36 - Shielding layer; 37 - Inner sheath layer; 301 - Twisted pair 1; 302 - Twisted pair 2; 303 - Fiber optic cable 1; 304 - Fiber optic cable 2. Detailed Implementation

[0046] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0047] It should be noted that all directional indicators (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0048] In this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this utility model.

[0050] The present invention will be further described in detail below with reference to the accompanying drawings.

[0051] Please see Figures 1 to 5 This utility model provides a technical solution: a modular elevator communication unit traveling cable 100, which includes an outer sheath 1, a tension element 2, and a communication unit 3; the tension element 2 is symmetrically arranged at the left and right ends of the outer sheath 1; multiple communication units 3 are provided and arranged in the middle of the outer sheath 1; each communication unit 3 is a composite structure of various communication lines; the modular elevator communication unit traveling cables 100 can be stacked and connected.

[0052] It should be noted that the traveling cable 100 of the modular elevator communication unit is designed as a fixed dual-array configuration for the communication unit:

[0053] a) This addresses the issue of cable installation convenience; cables can be used in combination as needed during installation.

[0054] b) Separating the elevator's power supply line and communication line into two different cables in the traveling cable helps isolate electromagnetic interference and avoids communication signal interference.

[0055] c) It solves the problem that the complex and variable hybrid structure of the accompanying cable leads to different equipment (molds) used in production, which makes mass production impossible, and greatly improves efficiency;

[0056] d) To solve the problem of repeatedly designing and producing cable suspension components according to changes in the accompanying cable assembly structure, a fixed number of communication units 3 are provided, which have high versatility and flexibility.

[0057] Reference Figure 2Specifically, in this embodiment, the communication unit 3 includes twisted pair cable 301, twisted pair cable 302, optical fiber cable 303, optical fiber cable 304, shielding layer 36, and inner sheath layer 37; the twisted pair cable 301, twisted pair cable 302, optical fiber cable 303, and optical fiber cable 304 are twisted together and then covered by the shielding layer 36; the inner sheath layer 37 wraps around the shielding layer 36.

[0058] Reference Figure 3 Specifically, in this embodiment, the communication unit 3 includes a first conductor 31, a second conductor 32, a first optical fiber core 33, a second optical fiber core 34, an inner insulation layer 34, a shielding layer 36, and an inner sheath layer 37; the first conductor 31, the second conductor 32, the first optical fiber core 33, and the second optical fiber core 34 are all integrated on the inner insulation layer 34; the shielding layer 36 covers the inner insulation layer 34; and the inner sheath layer 37 wraps around the inner insulation layer 34.

[0059] Reference Figure 5 Specifically, in this embodiment, one end of the modular elevator communication unit traveling cable 100 is electrically connected to the elevator car 4, and the other end is electrically connected to the monitoring center 5; the middle part of the modular elevator communication unit traveling cable 100 is suspended in the middle of the shaft 6.

[0060] Specifically, in this embodiment, when the cable requires greater tensile strength, the twisted pair and optical cable in the communication unit 3 are twisted together with the tension-bearing element 2.

[0061] The modular elevator communication unit traveling cable 100 of this utility model consists of a communication unit 3, an outer cable sheath 1, and a tensile element 2. The communication unit 3 is a relatively independent unit of the modular cable, and it is a composite structure of various communication lines, such as twisted pair + optical fiber, network cable + optical fiber, and coaxial cable + optical fiber. One composite structure includes twisted pair 301, twisted pair 302, optical fiber 303, and optical fiber 304, which are attached together by twisting, covered by a metal shielding layer 36, and then wrapped by an inner sheath layer 37. Twisted pair has a certain degree of bending and tensile strength, and the attachment and twisting of the optical fiber with the twisted pair gives the optical fiber the same bending and tensile strength as the twisted pair. When the cable requires greater tensile strength, the twisted pair, optical fiber, and tensile element can also be twisted together to achieve a good tensile effect. Alternatively, the twisted-pair cable and optical fiber can be directly transformed into an integrated structure where the insulation layers of the twisted-pair cable and optical fiber are still twisted, providing excellent resistance to bending and tension. The modular elevator communication unit's traveling cable 100 is designed with a fixed double array of communication units. During installation, it can be stacked according to specific needs. This separates the elevator's power supply line and communication line into two different cables, facilitating electromagnetic interference isolation and preventing communication signal interference. It solves the problem of complex and variable hybrid structures in traveling cables, which hinders mass production due to different equipment (molds), significantly improving efficiency. It also eliminates the need for repeated design and production of cable suspension components based on variations in the traveling cable's structure. The fixed number of communication units 3 offers high versatility and flexibility. When used in elevators, the cable does not need to be routed to the control system 7 for connection or intermediate conversion, and then routed to the monitoring center 5. Only the length required for the car's vertical movement (suspended in the middle of the shaft) needs to be reserved before direct connection to the monitoring center 5, significantly reducing wiring distance.

[0062] Specifically, in the implementation of the modular elevator communication unit traveling cable 100 of this utility model, a rigorous and efficient process is followed to ensure the high-quality production and installation of the product.

[0063] In the manufacturing process, the specific composite structure of communication unit 3 is first determined precisely based on the specific elevator project requirements and performance standards. For example, if the elevator has high requirements for data transmission rate and anti-interference capability, a composite structure of network cable + optical fiber can be preferred. After determining the structure, for the composite structure containing twisted pair 301, twisted pair 302, optical fiber 303, and optical fiber 304, professional stranding equipment is used to tightly strand them together according to precise stranding pitch and angle, ensuring that the relative positions of each cable are stable and the force is uniform. After stranding, an advanced metal shielding layer covering process is used, such as using high-conductivity metal foil or braided mesh, to tightly cover the outer layer of the stranded cable, effectively blocking external electromagnetic interference. Subsequently, a dedicated inner sheath extrusion device is used to evenly wrap the appropriate inner sheath material on the metal shielding layer, forming a secondary protection for the internal cables.

[0064] When cables require stronger tensile strength, carefully selected tension-bearing elements 2, such as high-strength steel wire or fiber rope, are simultaneously twisted with the twisted pair and optical fiber during the aforementioned twisting process. This ensures a tight bond between the tension-bearing elements 2 and the cable, allowing the tensile force to be evenly distributed across all components. For the twisted pair and optical fiber insulation layers in the communication unit 3, a pre-designed integrated insulation material is molded in a specific mold using a precision injection molding process. The twisting action is performed during the molding process, ensuring the integrity and stability of the integrated structure.

[0065] When assembling the modular elevator communication unit traveling cable 100, the manufactured communication units 3 are placed in an orderly manner within a specially designed cable outer sheath forming mold, and the tensioning element 2 (if any) is positioned according to design requirements. Then, through an automated outer sheath 1 extrusion production line, the outer sheath 1 material, such as wear-resistant and weather-resistant rubber or plastic, meeting the requirements of the elevator operating environment, is evenly wrapped around the communication units 3 and the tensioning element 2 (if any), forming a complete cable structure. Throughout the entire production process, strict quality control standards are implemented, and each production stage is monitored and inspected in real time to ensure that all performance indicators of the product meet design requirements.

[0066] During elevator installation, installers first meticulously plan the laying path of the traveling cable based on the elevator shaft layout and the car's running trajectory. The elevator's power supply lines and communication lines within the traveling cable are strictly laid separately in different cable trays or cable ducts according to design requirements, ensuring sufficient safety distance between them to achieve effective electromagnetic interference isolation. For the modular elevator communication unit traveling cable 100, where communication unit 3 is fixed as a double array, the cable stacking method and quantity are rationally determined based on the actual conditions such as car load, running speed, and shaft height. For example, in high-rise high-speed elevators, multi-layer horizontal stacking can be used to increase the cable's current carrying capacity and stability; in elevator shafts with special spatial layout requirements, longitudinal stacking or double-cable twisting can be used to meet different installation needs.

[0067] After determining the cable laying method and stacking quantity, one end of the cable is connected to the corresponding interface at the bottom of the car, ensuring a secure connection and good electrical contact. Then, the cable is laid along the planned path and suspended at a suitable location in the middle of the hoistway. The selection of the suspension point is precisely calculated to ensure the cable is under reasonable stress during the car's up-and-down movement, preventing damage due to excessive stretching or bending. The other end of the cable is directly connected to the communication interface of the monitoring center 5, eliminating the need for cumbersome intermediate conversions or splicing operations. Throughout the installation process, installers strictly adhere to installation specifications and safety standards, using professional installation tools and equipment to ensure the quality and precision of the cable installation. After installation, comprehensive system debugging and testing are conducted, including communication signal quality testing, power supply line stability checks, and overall elevator performance evaluation, ensuring the stable and efficient operation of the modular elevator communication unit's traveling cable 100 within the elevator system, providing a reliable guarantee for the safe and comfortable operation of the elevator.

[0068] This utility model has the following beneficial effects:

[0069] First, it represents a qualitative leap in versatility and flexibility. By designing the ordinary conductors and communication units of the traveling cable separately, and adopting a unique architecture where the communication units are fixed in double arrays and can be stacked, the problem of redesigning and manufacturing due to changes in the structure of the conductors and communication units is effectively solved. Whether it is the ordinary conductors or the communication units, when adjusting the quantity and structure, only the corresponding modules need to be flexibly combined or replaced, without the need for large-scale redesign and manufacturing of the entire cable system. This greatly improves design efficiency and can quickly adapt to the diverse changes in different elevator models and functional requirements, providing elevator manufacturers with a more convenient and efficient product customization solution.

[0070] Secondly, it achieves remarkable results in production efficiency and cost control. Its fixed structural design allows for a high degree of standardization in the production process, enabling large-scale mass production with only one or a few sets of general-purpose equipment (molds). Compared to the traditional, complex, and ever-changing production model for mobile cables, it significantly reduces investment in production equipment, mold development and management costs, and the time and manpower wasted due to frequent adjustments to production processes. Simultaneously, the stable and efficient production process ensures consistent and reliable product quality, effectively reducing the defect rate, further lowering production costs, and enhancing the product's price competitiveness in the market.

[0071] Furthermore, from an engineering installation perspective, it offers significant advantages in terms of convenience. Its compact design allows for smaller and lighter traveling cables for the modular elevator communication unit. In the narrow and relatively complex space of the elevator shaft, installers can more easily and conveniently lay and secure the cables, effectively reducing the manpower, time costs, and labor intensity required for installation. In addition, the lighter cable weight puts less stress on the elevator's suspension system, which helps extend the service life of suspension components and reduces the maintenance costs and frequency of the elevator system.

[0072] Fourth, it excels in electromagnetic interference isolation. Innovatively, the elevator's power supply and communication lines are separated into two different cables within the traveling cable, effectively blocking the electromagnetic coupling path between them from a physical structural perspective. This design greatly minimizes the impact of electromagnetic interference from the power supply line on the communication signal, ensuring stable and reliable communication signal transmission quality. It significantly reduces the elevator malfunction rate caused by electromagnetic interference, such as communication interruptions and misoperations, effectively guaranteeing the safety and stability of elevator operation and improving the overall performance and passenger comfort.

[0073] Fifth, the composite structure inside the communication unit provides the optical cable with excellent bending and tensile protection. By rationally twisting the twisted pair with the optical cable, or using an integrated insulation layer twisting structure, the bending and tensile properties of the twisted pair are fully utilized, effectively distributing the external forces borne by the optical cable during elevator operation. This composite structure design effectively solves the problem of core breakage caused by the susceptibility to bending and tension in traditional optical fiber units, significantly improving the reliability and durability of the communication unit, ensuring the long-term stable operation of the elevator communication system, reducing elevator maintenance and repair work caused by optical fiber failures, and lowering elevator operating costs and downtime.

[0074] Finally, the unique wiring method brings significant cost reduction and performance improvement to the elevator system. When the modular elevator communication unit's traveling cable is installed on the elevator, it eliminates the need for traditional cables to be first routed to the control system and then connected or converted before being routed to the monitoring center 5. Instead, it only requires reserving enough length for the car's vertical movement and hanging it in the middle of the hoistway 6 before directly connecting to the monitoring center 5. This simple and efficient wiring method significantly shortens the wiring distance of the communication unit, reduces the amount of cable material used, and thus effectively reduces cable procurement and installation costs. At the same time, the shorter wiring distance reduces the risk of signal attenuation and distortion during transmission, improves the quality and transmission speed of communication signals, and ensures timely and accurate information exchange between the elevator control system and the monitoring center 5, further improving the elevator's operating efficiency and intelligent management level.

[0075] In summary, the modular elevator communication unit traveling cable of this utility model, with its significant advantages in versatility, production efficiency, ease of installation, electromagnetic compatibility, optical cable protection, and wiring methods, provides the elevator industry with a more advanced, reliable, and cost-effective traveling cable solution, possessing extremely high practical value and broad market application prospects.

[0076] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A modular elevator communication unit traveling cable, characterized by: The modular elevator communication unit travelling cable comprises an outer sheath, a tensile element and communication units; the tensile element is symmetrically arranged at the left and right ends of the outer sheath; the communication units are arranged in the middle part of the outer sheath; each of the communication units is a composite structure of communication lines; the modular elevator communication unit travelling cables can be connected in a superimposed manner.

2. A modular elevator communication unit traveling cable according to claim 1, characterized in that: The communication unit comprises twisted pair one, twisted pair two, optical cable one, optical cable two, a shielding layer and an inner sheath layer; the twisted pair one, the twisted pair two, the optical cable one and the optical cable two are covered by the shielding layer after being twisted and attached together; the inner sheath layer wraps the shielding layer.

3. A modular elevator communication unit traveling cable according to claim 1, characterized in that: The communication unit comprises wire conductor one, wire conductor two, optical fiber core one, optical fiber core two, an inner insulation layer, a shielding layer and an inner sheath layer; the wire conductor one, the wire conductor two, the optical fiber core one and the optical fiber core two are integrated on the inner insulation layer; the shielding layer covers the inner insulation layer; the inner sheath layer wraps the inner insulation layer.

4. A modular elevator communication unit travel cable according to claim 1, wherein: One end of the modular elevator communication unit travelling cable is electrically connected with an elevator car, and the other end is electrically connected with a monitoring center; the middle part of the modular elevator communication unit travelling cable is suspended in the middle part of a hoistway.

5. A modular elevator communication unit travel cable according to claim 1, wherein: When the cable needs to have tensile capacity, the twisted pair and the optical cable in the communication unit are twisted together with the tensile element.

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