Mistaken wiring prevention color code terminal strip device

By establishing a hierarchical color identification system and an asymmetrical mechanical guiding structure on the terminal block, the problems of visual error and identification wear in complex industrial electrical wiring of existing terminal blocks are solved, achieving the effect of high recognition and low risk of incorrect wiring.

CN121440221APending Publication Date: 2026-01-30CHINA HUANENG RENEWABLES CORP LTD HUBEI
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Patent Information

Application Number
CN202511857025.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-10
Publication Date
2026-01-30

AI Technical Summary

Technical Problem

Existing terminal blocks rely on single-color or numerical markings in complex industrial electrical wiring, leading to visual errors, marking wear and light interference, and the risk of incorrect wiring. Their reliability is insufficient, especially in high-density wiring and vibration environments.

Method used

A hierarchical color identification system is established using a standardized color code module. It combines a permanent background color with a raised color code to form a composite identification structure. Physical interlocking is achieved through an asymmetric mechanical guide structure. It is equipped with topological visual enhancement and reliability verification modules to form a closed-loop system.

Benefits of technology

It improves the identification and wear resistance of terminal blocks in complex environments, reduces the risk of incorrect wiring, and ensures the accuracy of wiring and the reliability of the system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of electrical wiring, in particular to an anti-miswiring color code terminal strip device which comprises a standardized color code coding module, a composite identification forming module, a mechanical anti-misplug configuration module and a reliability collaborative verification module. The standardized color code coding module establishes a hierarchical color identification system based on electrical loop function classification; the composite identification forming module forms a composite identification structure on the terminal strip body according to the color identification system, wherein the composite identification structure combines the permanent ground color and the protruding color code. The mechanical anti-misplug configuration module configures an asymmetric mechanical guide structure on a plugging interface to realize unique physical interlocking with a corresponding plug; and the reliability collaborative verification module performs integrated verification on the color consistency of the composite identification structure and the plugging reliability of the mechanical guiding structure. According to the invention, through the multi-layer anti-misconnection design, the problem of misconnection caused by visual error, identification wear or light interference of the existing terminal strip is effectively solved, and the wiring accuracy and the system reliability are remarkably improved.
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Description

Technical Field

[0001] This invention relates to the field of electrical wiring technology, and in particular to a color-coded terminal block device for preventing miswiring. Background Technology

[0002] Existing terminal block connection technology suffers from the following technical challenges: Firstly, current terminal blocks primarily rely on a single-color coating or engraved numbers for circuit identification. In high-density wiring scenarios within industrial automation electrical control cabinets, the densely packed terminals make it difficult for maintenance personnel to quickly and accurately distinguish between different functional circuits. Secondly, in power distribution boxes in wind farms or photovoltaic power plants, long-term operation can cause wear and tear on the markings, and insufficient lighting or strong light reflection can also lead to visual reading difficulties. For instance, during photovoltaic inverter wiring maintenance, if the markings on the DC side and control circuit terminals are unclear, it is highly likely that incorrect positive and negative connections or mixing of signal and power lines will occur, potentially causing equipment failure or safety risks. This highlights the unreliability of existing marking methods in complex electrical environments. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a color-coded terminal block device to prevent miswiring. This solves the technical problem that existing terminal blocks rely on a single color or number for identification, which can easily lead to visual errors, wear and tear of the markings, or light interference in complex industrial electrical wiring, resulting in a high risk of miswiring and reduced system reliability.

[0004] To solve the above-mentioned technical problems, the specific contents of the present invention are as follows: The color-coded terminal block device for preventing miswiring provided by the present invention includes a standardized color-coded module for establishing a hierarchical color identification system based on the functional classification of electrical circuits; The composite marking module is used to form a composite marking structure combining a permanent background color and a raised color mark on the terminal block body based on the color marking system output by the standardized color mark encoding module. A mechanical anti-misinsertion configuration module is used to configure an asymmetrical mechanical guide structure at the insertion interface of the terminal block body according to the color identification system. The outline of the mechanical guide structure is configured to achieve unique physical interlock with the corresponding type of plug. The reliability collaborative verification module is used to perform integrated verification of the color consistency of the composite marking structure and the insertion and removal reliability of the mechanical guide structure.

[0005] Furthermore, in the anti-miswiring color code terminal block device of the present invention, the standardized color code encoding module includes: The primary color mapping unit is used to assign a unique primary color to electrical circuits of different functional categories; An auxiliary color difference unit is used to generate auxiliary color identifiers with differences in brightness or saturation for different wire cores in the same functional category circuit, based on the main color tone.

[0006] Furthermore, in the color code terminal block device for preventing miswiring described in this invention, the main color mapping unit is configured to perform main color calibration using international standard color card encoding.

[0007] Furthermore, in the anti-miswiring color-coded terminal block device of the present invention, the composite marking forming module includes: An electrostatic spraying unit is used to spray a base coat onto the surface of the terminal block body. A laser engraving unit is used to etch defined color mark areas on the base color coating; A raised configuration unit is used to form a raised structure on the color mark area.

[0008] Furthermore, in the anti-miswiring color mark terminal block device of the present invention, the composite marking forming module further includes a wear-resistant reinforcement unit for covering the surface of the raised structure with a transparent wear-resistant coating.

[0009] Furthermore, in the color-coded terminal block device for preventing miswiring described in this invention, the mechanical anti-misinsertion configuration module includes: An asymmetric guide groove configuration unit is used to process an asymmetric positioning guide groove at the insertion interface; A plug profile matching unit is used to give different types of plugs an irregular profile that uniquely matches the asymmetric positioning guide groove.

[0010] Furthermore, in the anti-miswiring color mark terminal block device of the present invention, the asymmetrical positioning guide groove of the asymmetrical guide groove configuration unit adopts a tapered progressive design.

[0011] Furthermore, the anti-miswiring color mark terminal block device of the present invention further includes a topology vision enhancement module, the topology vision enhancement module comprising: Interleaved layout unit, used to arrange terminal block units in an interleaved manner; An adaptive supplemental lighting unit is used to activate lateral supplemental lighting when the ambient illuminance is below a threshold.

[0012] Furthermore, in the anti-miswiring color-coded terminal block device of the present invention, the reliability collaborative verification module includes: A color difference quantization detection unit is used to detect the color difference of the composite marking structure; The insertion / removal life simulation unit is used to perform insertion / removal life tests under simulated vibration environments.

[0013] Furthermore, in the anti-miswiring color mark terminal block device of the present invention, the reliability collaborative verification module further includes an environmental adaptability verification unit, which is used to verify the performance stability of the composite marking structure and the mechanical guiding structure through high and low temperature alternating tests.

[0014] Beneficial effects of this invention; The color-coded terminal block device for preventing miswiring provided by this invention establishes a hierarchical color identification system through a standardized color coding module, enabling terminal blocks of different functional circuits to have highly recognizable color codes, effectively overcoming the visual error problem of existing single-marker devices in dense wiring scenarios. The composite marking module constructs a composite marking structure on the terminal block body, combining a permanent background color with raised color marks. Its wear-resistant coating and three-dimensional design significantly improve the marking's wear resistance and light adaptability, maintaining clear readability even in vibration environments or low-light conditions. The asymmetrical mechanical guiding structure of the mechanical anti-misinsertion configuration module prevents plug misinsertion through a physical interlocking mechanism, reducing the risk of wiring errors at the source. The topology vision enhancement module optimizes terminal arrangement and supplementary lighting functions, further improving operational visibility. The reliability collaborative verification module performs integrated testing on color consistency and mechanical durability, ensuring long-term stable operation of the device in complex industrial environments. All modules collaborate based on the color identification system, forming a closed-loop system from coding design to verification and evaluation, comprehensively improving wiring accuracy, operational safety, and system reliability. Attached Figure Description

[0015] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on the accompanying drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the device architecture of the color-coded terminal block device for preventing miswiring according to the present invention. Detailed Implementation

[0017] To make the technical solution of the present invention clearer, the present invention will be clearly and completely described below with reference to specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The present invention provided by various embodiments will be described in detail below with reference to the accompanying drawings. To better understand the purpose of the present invention, the present invention will be described in further detail below.

[0018] Please see Figure 1The color-coded terminal block device for preventing miswiring provided by the present invention includes a standardized color-coded module for establishing a hierarchical color identification system based on electrical circuit function classification; The composite marking module is used to form a composite marking structure combining a permanent background color and a raised color mark on the terminal block body based on the color marking system output by the standardized color mark encoding module. A mechanical anti-misinsertion configuration module is used to configure an asymmetrical mechanical guide structure at the insertion interface of the terminal block body according to the color identification system. The outline of the mechanical guide structure is configured to achieve unique physical interlock with the corresponding type of plug. The reliability collaborative verification module is used to perform integrated verification of the color consistency of the composite marking structure and the insertion and removal reliability of the mechanical guide structure.

[0019] The color-coded terminal block device for preventing miswiring integrates multiple functional modules to address the risk of miswiring in industrial electrical wiring. This is especially important in high-density wiring scenarios such as new energy power plants, where the existing single-marking method of terminal blocks is susceptible to vibration, wear, or light interference. The standardized color-coded module first establishes a hierarchical color identification system. This module includes a primary color mapping unit and an auxiliary color difference unit. The primary color mapping unit assigns a unique primary color to electrical circuits of different functional categories, for example, using international standard color card coding. The auxiliary color difference unit generates auxiliary color identifiers based on differences in brightness or saturation of the primary color to distinguish different wire cores within the same circuit, thus forming a systematic foundation for color management.

[0020] The composite marking module is based on the color marking system output by the standardized color code encoding module and implements a composite marking structure on the terminal block body. Specifically, a permanent base color coating is formed on the surface of the terminal block by an electrostatic spraying unit, and then the color mark area is etched and defined by a laser engraving unit. Subsequently, a raised structure unit forms a raised structure on the color mark area. In order to improve durability, a wear-resistant reinforcement unit can cover the surface of the raised structure with a transparent wear-resistant coating. This design that combines the base color and the raised color mark enhances visual recognition and can still be clearly read in low-light environments such as photovoltaic inverter wiring.

[0021] The mechanical anti-misinsertion configuration module features an asymmetrical mechanical guide structure at the terminal block interface based on a color-coding system. The asymmetrical guide groove configuration unit is machined to form an asymmetrical positioning guide groove, and adopts a tapered progressive design to simplify insertion and removal operations. At the same time, the plug profile matching unit ensures that different types of plugs have uniquely matched irregular profiles, achieving physical interlocking. For example, in a wind turbine cabinet, the asymmetrical structure can prevent plug misinsertion under vibration conditions, improving wiring safety.

[0022] The reliability collaborative verification module performs integrated verification of the composite marking structure and the mechanical guidance structure; the color difference quantification detection unit detects the color consistency of the composite marking structure; the insertion and removal life simulation unit performs insertion and removal life tests under simulated vibration environment; and the environmental adaptability verification unit verifies performance stability through high and low temperature alternating tests. This collaborative verification process ensures the reliability of the device under complex working conditions, such as maintaining its function after long-term operation in an industrial automation control cabinet.

[0023] The topology vision enhancement module further optimizes the user experience. The staggered layout unit arranges the terminal block units in an interlaced manner, increasing wiring space and heat dissipation efficiency. The adaptive supplementary lighting unit activates lateral supplementary lighting when the ambient illuminance is below the threshold, solving the visual interpretation difficulties caused by strong light reflection or shadows. Each module is interconnected through a color identification system. The output of the standardized color code coding module drives the formation of composite marks and mechanical anti-misinsertion configuration, while the reliability collaborative verification module provides feedback to optimize the design, forming a closed-loop system that ultimately improves wiring accuracy and efficiency in electrical operations.

[0024] The standardized color coding module assigns differentiated primary colors to power circuits, control circuits, and signal circuits through a primary color mapping unit. For example, red is used for power circuits to comply with general safety specifications. The auxiliary color difference unit generates auxiliary color identifiers based on the primary colors, using brightness gradients to distinguish live, neutral, and ground wires within the same circuit, forming a color hierarchy in the DC side wiring of photovoltaic power plants. The combination of primary and auxiliary colors establishes scalable coding rules, providing standard input for subsequent marking processes.

[0025] The primary color mapping unit uses international standard color chart codes for color calibration, such as the Pantone color system, to ensure consistency in color codes for terminal blocks across different production batches. Standard color chart codes provide a color matching benchmark, maintaining color recognition consistency when terminal blocks are used across different devices and avoiding wiring ambiguities due to color differences.

[0026] The electrostatic spraying unit of the composite marking module forms a uniform base coat on the surface of the terminal block body. The coating material is an epoxy resin-based paint to enhance adhesion. The laser engraving unit etches the outline of the marking area on the base coat, and the engraving depth is controlled to ensure the sharpness of the marking. The raised configuration unit forms a hemispherical protrusion in the marking area through mold injection molding. The protrusion edge is designed with drainage grooves to prevent dust accumulation from affecting visibility.

[0027] The wear-resistant reinforcement unit is coated with a transparent polyurethane coating on the surface of the raised structure using a spin-coating process. The coating thickness is evenly distributed to maintain optical transparency. The transparent coating and the raised structure form a physical barrier, reducing color mark wear and extending the life of the markings under vibration conditions in wind turbine enclosures.

[0028] The asymmetric guide groove configuration unit of the mechanical anti-misinsertion module processes a combination of trapezoidal and semi-circular guide grooves at the insertion interface, with the guide groove depth gradually changing to form a guide slope. The plug contour matching unit generates irregular plug contours according to the color identification system; for example, power circuit plugs are limited to a trapezoidal contour to achieve physical interlocking.

[0029] The asymmetrical positioning guide groove features a tapered progressive design with a 15-degree inclination angle, and a rounded transition at the groove entrance reduces insertion and extraction resistance. The tapered structure guides the plug into the correct position during the initial insertion phase, and the irregular design of the plug contour matching unit enables blind insertion and error prevention.

[0030] The staggered layout of the topology vision enhancement module uses Z-shaped terminal block units, with the unit spacing set according to the standard tool operating space. The adaptive supplementary lighting unit integrates a photosensor to monitor ambient illuminance. When the illuminance is below a threshold, it triggers a side LED light source. The color temperature of the light source matches standard white light to reduce color distortion.

[0031] The color difference quantification detection unit of the reliability collaborative verification module uses a spectrophotometer to scan the composite marking structure and compares the detection data with standard samples. The insertion / removal life simulation unit uses a pneumatic device to simulate the field vibration frequency for cyclic testing and records the structural deformation and electrical connection stability data.

[0032] The environmental adaptability verification unit places the terminals in a high and low temperature alternating test chamber to simulate temperature cycling conditions and evaluate color stability. During the test, the insertion and extraction torque changes of the mechanical guide structure are monitored simultaneously to verify the reliability of the physical interlock function under temperature stress.

[0033] The specific implementation of the color-coded terminal block device for preventing miswiring involves high-density wiring scenarios such as industrial automation electrical control cabinets and power distribution boxes in new energy power plants. Addressing the issues of easily worn terminal block markings and difficulties in visual interpretation, this implementation plan constructs a complete solution to prevent miswiring through multi-layered technical means.

[0034] The standardized color coding module first establishes a color identification system based on the functions of electrical circuits. The primary color mapping unit assigns red to power circuits, blue to control circuits, and green to signal circuits, achieving color standardization by referencing international standard color charts. The auxiliary color difference unit generates auxiliary color identifiers within the same circuit category based on differences in brightness. For example, in a power circuit, the live wire uses a high-saturation red, the neutral wire uses a light red tone, and the ground wire is distinguished by black stripes. This hierarchical color management provides standardized input for subsequent labeling processes.

[0035] The composite marking module implements a dual composite marking process on the surface of the terminal block body. An electrostatic spraying unit forms an epoxy resin base coat on the terminal block substrate surface, followed by laser engraving of the color marking area outline on the coating. A raised configuration unit uses injection molding to form a hemispherical raised structure in the color marking area, with drainage grooves designed at the edges to prevent dust accumulation. For vibration environments such as wind turbine cabinets, the wear-resistant reinforcement unit uses a spin-coating process to cover the raised surface with a transparent, wear-resistant polyurethane coating, effectively resisting marking wear caused by long-term operation.

[0036] The mechanical anti-misconnection module constructs an asymmetric mechanical guiding structure at the terminal block interface. The asymmetric guide groove configuration unit processes a positioning guide groove combining trapezoidal and semi-circular shapes, with a gradually changing groove depth forming a tapered progressive structure. The plug contour matching unit generates irregular contours for different plug types based on a color-coding system, ensuring that red plugs correspond to the trapezoidal guide groove and blue plugs match the semi-circular guide groove. This physical interlocking design effectively prevents incorrect positive and negative connections during photovoltaic inverter wiring and maintenance.

[0037] The topology-based visual enhancement module employs a Z-shaped arrangement of terminal block units in a staggered layout, with unit spacing determined based on standard tool operating space. The adaptive supplementary lighting unit integrates a photosensor that automatically activates lateral LED light sources when ambient illuminance falls below a threshold. The light source's color temperature matches standard white light to reduce color distortion. This design is particularly suitable for wiring scenarios inside electrical cabinets where lighting is insufficient.

[0038] The reliability co-verification module performs integrated verification of the entire system. The color difference quantification detection unit uses a spectrophotometer to scan the composite marking structure and compares the color difference data with standard samples. The insertion / extraction life simulation unit uses a pneumatic device to simulate on-site vibration frequencies for cyclic testing and records the durability data of the mechanical structure. The environmental adaptability verification unit places the terminal block in a high and low temperature alternating test chamber, simultaneously monitoring color stability and insertion / extraction torque changes to verify performance reliability under extreme temperature conditions.

[0039] The modules are closely linked through a color-coding system. The output of the standardized color-coding module drives the operation of the composite marking module and the mechanical anti-misconnection configuration module, while the test results of the reliability co-verification module are fed back to optimize the system's design parameters. This closed-loop design enables the device to maintain stable anti-misconnection performance in complex industrial environments, significantly improving the safety and reliability of electrical wiring operations.

[0040] This invention addresses the limitations of existing terminal block marking schemes in complex industrial environments by proposing an integrated solution. Traditional terminal blocks, installed in cabinets within photovoltaic power plants or wind farms, are prone to wear and tear or visual misinterpretation due to factors such as vibration, light variations, and high-density wiring. This solution employs a multi-layered anti-misconnection design, systematically innovating from color coding and physical structure to verification processes.

[0041] The standardized color coding module establishes a hierarchical color identification system based on the functional classification of electrical circuits. The primary color mapping unit assigns a unique primary color to different functional circuits; for example, power circuits use red, control circuits use blue, and signal circuits use green, coded according to standard color charts to ensure accurate color labeling. The auxiliary color difference unit, based on the primary color, generates auxiliary color identifiers by adjusting brightness or saturation to distinguish different wires within the same circuit; for example, live wires use high-saturation red, and neutral wires use a light red tone. This hierarchical color management provides a standardized and scalable input foundation for subsequent modules.

[0042] The composite marking module transforms the color system into highly durable physical markings. An electrostatic spraying unit first forms an epoxy resin base coat on the terminal block surface, followed by a laser engraving unit that precisely etches the outline of the marking area. Then, a raised configuration unit uses a mold to injection mold a hemispherical raised structure onto the marking area. To cope with vibration environments, a wear-resistant reinforcement unit covers the raised surface with a transparent, wear-resistant polyurethane coating. This design, combining the base color with the raised markings, not only enhances visual contrast but also provides tactile assistance for identification, maintaining clear visibility even in low-light or high-reflection environments.

[0043] The mechanical anti-misinsertion configuration module transforms color coding into a physical error-proofing mechanism. The asymmetrical guide groove configuration unit processes asymmetrical positioning guide grooves combining trapezoidal and semi-circular shapes at the terminal block interface, employing a tapered progressive design. The guide groove inlet features a rounded corner transition to reduce insertion and removal resistance. The plug profile matching unit generates a unique profile for each type of plug based on the color coding system. For example, red power plugs can only be matched with trapezoidal guide grooves, while blue control plugs correspond to semi-circular guide grooves, preventing misinsertion at its source through physical interlocking.

[0044] The topology vision enhancement module further optimizes the user experience in cabling environments. The staggered layout unit uses a Z-shaped arrangement of terminal block units to reasonably increase the operating spacing; the adaptive supplementary lighting unit monitors ambient illuminance through a photosensor and automatically activates side LEDs for supplementary lighting when light is insufficient, with the light source color temperature calibrated to reduce color distortion. This design is particularly suitable for maintenance work in space-constrained electrical control cabinets.

[0045] The reliability collaborative verification module forms a quality closed loop. The color difference quantification detection unit uses a spectrophotometer to detect the color consistency of the composite marking structure; the insertion and removal life simulation unit conducts repeated insertion and removal tests under vibration using a pneumatic device; and the environmental adaptability verification unit uses a high and low temperature alternating test chamber to verify the performance stability under extreme temperature conditions. Test data is fed back to the design end to continuously optimize the parameters of each module.

[0046] This invention integrates visual identification, mechanical interlocking, and environmental adaptability through a standardized color-coded system. In photovoltaic inverter wiring scenarios, maintenance personnel can quickly locate DC-side terminals using color hierarchy and avoid incorrect positive and negative connections thanks to asymmetrical guide channels. This closed-loop design from coding to verification significantly improves wiring accuracy and system reliability in high-density electrical wiring scenarios.

[0047] The standardized color coding module assigns highly distinctive primary colors to electrical circuits of different functional categories through a primary color mapping unit. For example, in industrial control cabinets, power circuits uniformly use red tones, control circuits use blue tones, and signal circuits use green tones. This color allocation follows general electrical industry standards. The primary color mapping unit uses international standard color card coding to perform color calibration, ensuring color code consistency across different batches of terminal blocks. The auxiliary color difference unit generates auxiliary color identifiers based on the primary colors, achieving hierarchical differentiation by adjusting color brightness or saturation. Taking the DC side wiring of a photovoltaic power station as an example, the live wire in the power circuit uses a high-saturation red, the neutral wire uses a relatively bright light red, and the ground wire is combined with black stripe markings, forming an intuitive wire core identification system.

[0048] The electrostatic spraying unit of the composite marking module forms an epoxy resin base coat on the surface of the terminal block body, with the coating thickness controlled uniformly through an electrostatic adsorption process. The laser engraving unit uses a CNC laser to etch the outline of the color mark area onto the base coat, with precise control over the engraving depth to ensure the clarity of the pattern edges. The raised configuration unit uses a precision injection molding process to form a hemispherical raised structure in the color mark area, with radial drainage grooves designed on the raised surface to prevent dust accumulation. For the vibration environment of wind turbine enclosures, the wear-resistant reinforcement unit uses a spin coating process to cover the surface of the raised structure with a transparent polyurethane wear-resistant coating, maintaining optical transparency while improving the wear resistance index.

[0049] The asymmetric guide groove configuration unit of the mechanical anti-misinsertion module processes asymmetric positioning guide grooves combining trapezoidal and semi-circular shapes at the insertion interface. The depth of the guide grooves adopts a tapered progressive design to form a guiding slope. The plug contour matching unit generates irregular plug contours according to the color identification system. For example, red power plugs match trapezoidal guide grooves, and blue control plugs match semi-circular guide grooves. The tapered progressive design of the asymmetric positioning guide grooves features rounded corners at the groove entrance, and blind insertion positioning is achieved through the sloped guidance during the insertion process.

[0050] The staggered layout of the topology vision enhancement module uses a Z-shaped arrangement of terminal block units, with the unit spacing set according to the operating space of standard wiring tools. The adaptive supplementary lighting unit integrates a photosensor to monitor ambient illuminance in real time. When the illuminance is below a set threshold, it automatically activates the side LED supplementary lighting source, with the light source's color temperature matched to standard white light to reduce color distortion. This layout is particularly suitable for wiring scenarios inside electrical control cabinets with limited space.

[0051] The color difference quantification detection unit of the reliability co-verification module uses a spectrophotometer to detect the color consistency of the composite marking structure and compares the measurement data with standard color card samples for analysis. The insertion / extraction life simulation unit uses a pneumatic device to simulate on-site vibration frequencies to conduct cyclic insertion / extraction tests and records the durability data of the mechanical structure. The environmental adaptability verification unit places the terminal arrangement in a high-low temperature alternating test chamber, simultaneously monitoring the color stability of the composite marking structure and the changes in the insertion / extraction torque of the mechanical guide structure, verifying the device's performance reliability under extreme temperature conditions.

[0052] A collaborative working mechanism is established between the modules through a color-coding system. The color specifications output by the standardized color code encoding module directly drive the spraying parameter settings of the composite marking module, while also guiding the guide groove contour design of the mechanical anti-misconnection configuration module. The test results of the reliability collaborative verification module are fed back to the standardized color code encoding module to optimize the contrast parameters of the color system, forming a closed-loop quality control process from design to verification. In complex scenarios such as photovoltaic inverter wiring, this multi-module collaborative design can achieve rapid visual recognition through color hierarchy and prevent physical misconnection through mechanical interlocking mechanisms, comprehensively improving the accuracy and safety of wiring operations.

Claims

1. A miswire prevention color-coded terminal block apparatus, characterized by, The standardized color code module is configured to establish a hierarchical color identification system based on a functional classification of electrical circuits. The composite identification forming module is configured to form a composite identification structure combining a permanent base color and a raised color code on the terminal block body based on the color identification system output by the standardized color code module. The mechanical anti-misplug configuration module is configured to configure an asymmetric mechanical guide structure on the terminal block body at the interface of the terminal block body based on the color identification system, and the profile of the mechanical guide structure is configured to complete physical interlocking with the plug of the corresponding category. The reliability verification module is configured to verify the color consistency of the composite identification structure and the plugging of the mechanical guide structure.

2. The miswire prevention color coded terminal block assembly of claim 1, wherein, The standardized color code module comprises: A main color mapping unit configured to assign a unique main color to different functional categories of electrical circuits. An auxiliary color difference division unit configured to generate auxiliary color codes with differences in lightness or saturation for different cores in the same functional category of circuits based on the main color.

3. The miswire prevention color coded terminal block assembly of claim 2, wherein, The main color mapping unit is configured to perform main color calibration using an international standard color card code.

4. The miswire prevention color coded terminal block assembly of claim 3 wherein, The composite identification forming module comprises: An electrostatic spraying unit configured to spray a base color coating on the surface of the terminal block body. A laser engraving unit configured to etch a color code area on the base color coating. A raised configuration unit configured to form a raised structure on the color code area.

5. The miswire prevention color coded terminal block assembly of claim 4 wherein, The composite identification forming module further comprises a wear-resistant enhancement unit configured to cover the surface of the raised structure with a transparent wear-resistant coating.

6. The miswire prevention color coded terminal block assembly of claim 5, wherein, The mechanical anti-misplug configuration module comprises: An asymmetric guide groove configuration unit configured to form an asymmetric positioning guide groove on the interface. A plug profile matching unit configured to make plugs of different categories have a special-shaped profile that uniquely matches the asymmetric positioning guide groove.

7. The miswire prevention color coded terminal block assembly of claim 6 wherein, The asymmetric positioning guide groove configured by the asymmetric guide groove configuration unit adopts a tapering design.

8. The miswire prevention color coded terminal block assembly of claim 7, wherein, The topological visual enhancement module comprises: An interleaved layout unit configured to arrange terminal block units in an interleaved manner. An adaptive light supplement unit configured to activate lateral light supplement when ambient illumination is below a threshold.

9. The miswire prevention color coded terminal block assembly of claim 8, wherein, The reliability verification module comprises: A color difference quantification detection unit configured to detect the color difference of the composite identification structure. A plug-in life simulation unit configured to perform plug-in life tests in a simulated vibration environment.

10. The miswire prevention color coded terminal block assembly of claim 9, wherein, The reliability verification module further comprises an environmental adaptability verification unit configured to verify the performance stability of the composite identification structure and the mechanical guide structure through high-low temperature alternating tests.