Cabin main control cabinet heating system

Abstract

The utility model discloses a cabin master control cabinet heating system, which comprises a voltage conversion module, an air circuit breaker, a temperature control switch and a heating device, and is characterized in that the input end of the voltage conversion module is connected with any phase of a cabin three-phase power supply and is used for converting three-phase line voltage into rated working voltage required by the temperature control switch and the heating device; the air circuit breaker is installed over the master control power module, the input end of the air circuit breaker is connected with the output end of the voltage conversion module and used for preventing overcurrent or short circuit of a heating loop, the temperature control switch is installed on the side wall of an air inlet of the master control power module, and the input end of the temperature control switch is connected with the output end of the air circuit breaker and used for regulating and controlling starting and stopping of the heating device. The heating device is installed on the inner side of a cabinet door of the cabin main control cabinet, and the power input end of the heating device is connected with the output end of the temperature control switch and used for heating the environment in the cabinet. According to the system, through precise temperature control, efficient voltage conversion, multi-stage safety protection and scientific installation layout, the real-time performance, accuracy and safety of the heating system are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of wind power generation equipment, and in particular relates to a nacelle main control cabinet heating system. Background Technology

[0002] The existing wind turbine nacelle control cabinet lacks any heating components, resulting in a poor operating environment for the components. During maintenance in low winter temperatures, the main control power module fails to restart automatically after a power outage, and it also fails to restart automatically after a power outage and subsequent restoration. In these situations, maintenance personnel must manually heat the main control power module using a hot air gun, significantly reducing troubleshooting efficiency. More seriously, the harsh operating environment frequently causes power module damage, resulting in substantial power loss and significant economic losses.

[0003] Meanwhile, traditional heating systems suffer from numerous drawbacks. In terms of temperature response, they exhibit significant lag, making it difficult to adjust heating power promptly and accurately according to changes in ambient temperature. This leads to frequent cold starts of the power module, accelerating equipment aging. Defects exist in the voltage conversion stage; the direct voltage reduction method causes severe electromagnetic interference and results in significant energy loss. Safety protection measures are weak, relying solely on a single air switch and lacking multi-level protection mechanisms, making it difficult to ensure the safe and stable operation of the system. Poor installation layout, with heaters too close to the power module, prevents timely heat dissipation, easily leading to localized overheating and further increasing the risk of equipment failure. Therefore, there is an urgent need for a high-efficiency heating solution specifically designed for the main control cabinet of a wind turbine nacelle. Utility Model Content

[0004] The purpose of this utility model is to provide a cabin main control cabinet heating system that solves the technical problems of existing heating systems, such as lag in temperature response, voltage conversion defects, weak safety protection, and unreasonable installation layout, through precise temperature control, efficient voltage conversion, multi-level safety protection, and scientific installation layout.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model provides a cabin main control cabinet heating system, which includes: a voltage conversion module, an air circuit breaker, a temperature control switch and a heating device;

[0007] The input terminal of the voltage conversion module is connected to any one phase of the three-phase power supply in the cabin, and is used to convert the three-phase line voltage into the rated operating voltage required by the temperature control switch and the heating device.

[0008] The air circuit breaker is installed directly above the main control power module, and its input terminal is connected to the output terminal of the voltage conversion module to prevent overcurrent or short circuit in the heating circuit.

[0009] The temperature control switch is installed on the side wall of the air inlet of the main control power module, and its input terminal is connected to the output terminal of the air circuit breaker. It is used to automatically adjust the start and stop of the heating device according to the temperature change inside the cabinet.

[0010] The heating device is installed inside the main control cabinet door of the cabin, and its power input terminal is connected to the output terminal of the temperature control switch to heat the environment inside the cabinet to ensure that the main control power module starts normally.

[0011] In one embodiment of this utility model, the voltage conversion module includes a Boost converter and an LLC resonant converter;

[0012] The input terminal of the Boost unit is connected to any one phase of the three-phase power supply in the cabin, and is used to boost the three-phase line voltage to a preset voltage value.

[0013] The input terminal of the LLC resonant converter is connected to the output terminal of the Boost boost unit, and the output terminal of the LLC resonant converter is connected to the input terminal of the air circuit breaker, for converting the preset voltage value into the rated operating voltage required by the temperature control switch and the heating device.

[0014] In one embodiment of this utility model, the voltage conversion module has a built-in active power filter, which is used to detect and compensate for output current harmonics in real time.

[0015] In one embodiment of this utility model, the contacts of the air circuit breaker are in a closed state under normal operating conditions. When an overcurrent or short circuit occurs in the heating circuit, the contacts are automatically opened to cut off the current path.

[0016] In one embodiment of this utility model, the temperature control switch has a built-in temperature sensor. The temperature sensor is used to detect the temperature inside the cabinet and compare the detected temperature inside the cabinet with a preset temperature range. Based on the comparison result, the working mode of the heating device is determined.

[0017] In one embodiment of this utility model, the outer surface of the heating device is covered with a nano-level ceramic insulating coating, which is used to block the high-voltage leakage path to prevent arc discharge.

[0018] In one embodiment of this utility model, the core area of ​​the heating device consists of several independent heating modules and standardized guide rail connectors. Each heating module is mechanically fixed to the outer shell of the heating device through a standardized guide rail connector.

[0019] In one embodiment of the present invention, a high thermal conductivity inhibiting silicone heat insulation pad is provided between the core area of ​​the heating device and the outer shell. The high thermal conductivity inhibiting silicone heat insulation pad is used to block heat conduction between the core area of ​​the heating device and the outer shell, so as to reduce the surface temperature of the outer shell.

[0020] In one embodiment of this utility model, the system further includes a multi-channel high-precision temperature sensing module, which consists of three sets of NTC thermistor arrays. The three sets of NTC thermistor arrays are respectively installed along the axial direction of the heating device at the surface monitoring point of the heating device, the monitoring point of the main control power module housing, and the monitoring point of the rear cabinet surface.

[0021] In one embodiment of this utility model, the system further includes a three-dimensional adjustable bracket. The bottom of the three-dimensional adjustable bracket is fixedly installed inside the cabinet door of the cabin control cabinet. The main body of the three-dimensional adjustable bracket is detachably connected to the heating device, so that the heating device can achieve multi-degree-of-freedom angle adjustment to ensure that the target heating area is heated evenly.

[0022] As described above, this utility model provides a cabin main control cabinet heating system, including a voltage conversion module, an air circuit breaker, a temperature control switch, and a heating device. The input terminal of the voltage conversion module is connected to any one phase of the cabin's three-phase power supply to convert the three-phase line voltage into the rated operating voltage required by the temperature control switch and the heating device. The air circuit breaker is installed directly above the main control power module, and its input terminal is connected to the output terminal of the voltage conversion module to prevent overcurrent or short circuit in the heating circuit. The temperature control switch is installed on the side wall of the air inlet of the main control power module, and its input terminal is connected to the output terminal of the air circuit breaker to automatically adjust the start and stop of the heating device according to changes in the cabinet temperature. The heating device is installed inside the cabinet door of the cabin main control cabinet, and its power input terminal is connected to the output terminal of the temperature control switch to heat the environment inside the cabinet, ensuring the normal start-up of the main control power module. This system achieves real-time monitoring and precise control of the ambient temperature, ensuring that the heating power can be automatically adjusted according to temperature changes, avoiding temperature response lag problems. Furthermore, the voltage conversion process is optimized by employing a high-efficiency power conversion module to reduce electromagnetic interference, improve energy conversion efficiency, and minimize power loss. Moreover, a multi-level protection mechanism is implemented, including overcurrent protection, overvoltage protection, and leakage protection, to ensure safe and stable operation of the system under various abnormal conditions. Additionally, the installation locations of the heater and power module are rationally planned to ensure timely heat dissipation and prevent localized overheating. Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above simultaneously. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a cabin control cabinet heating system provided for an exemplary embodiment of this application.

[0025] Figure 2 A schematic diagram of the thermistor array layout of a multi-channel high-precision temperature sensing module provided for an exemplary embodiment of this application.

[0026] The attached figures are labeled as follows:

[0027] 1. Cabin Main Control Cabinet

[0028] 2 Voltage Conversion Modules

[0029] 3 air circuit breakers

[0030] 4 Main Control Power Module

[0031] 5 Temperature control switches

[0032] 6 Heating devices

[0033] 7-dimensional adjustable support

[0034] 8-thermistor array Detailed Implementation

[0035] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0036] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0037] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, publicly known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0038] To address the technical problems of existing heating systems, such as lag in temperature response, voltage conversion defects, weak safety protection, and unreasonable installation layout, this invention proposes a nacelle main control cabinet heating system for wind power generation. This system aims to ensure that the temperature inside the control cabinet is consistently maintained at no less than 5°C through innovative modifications to the nacelle main control cabinet heating system. This significantly improves the operating environment of components within the cabinet, effectively reducing performance degradation and failure risks caused by low temperatures, thereby extending their service life. During routine maintenance, when operation of the power module is required, the system ensures that the power module can be powered on smoothly and start automatically, avoiding startup failures due to low temperatures and improving the efficiency and reliability of maintenance work. In winter, when power is restored after a power outage, the system can automatically restart the power module within 30 minutes, ensuring that the wind turbine can resume normal operation promptly, minimizing the impact of power outages and low temperatures on power generation, and maximizing power output.

[0039] Please see Figure 1 As shown in an exemplary embodiment of this application, the cabin main control cabinet heating system includes a voltage conversion module 2, an air circuit breaker 3, a temperature control switch 5, and a heating device 6. The input terminal of the voltage conversion module 2 is connected to any one phase of the cabin's three-phase power supply to convert the three-phase line voltage into the rated operating voltage required by the temperature control switch 5 and the heating device 6. The air circuit breaker 3 is installed directly above the main control power module 4, and its input terminal is connected to the output terminal of the voltage conversion module 2 to prevent overcurrent or short circuit in the heating circuit. The temperature control switch 5 is installed on the side wall of the air inlet of the main control power module 4, and its input terminal is connected to the output terminal of the air circuit breaker 3 to automatically adjust the start and stop of the heating device 6 according to the temperature change inside the cabinet. The heating device 6 is installed inside the cabinet door of the cabin main control cabinet 1, and its power input terminal is connected to the output terminal of the temperature control switch 5 to heat the environment inside the cabinet to ensure the normal start-up of the main control power module 4.

[0040] It should be noted that the main control power module 4 is a 24V rated switching power supply module with a built-in low-temperature protection function. This low-temperature protection function has real-time temperature monitoring capabilities. When the ambient temperature is detected to be lower than the normal operating range, a delayed start strategy is automatically activated. Before the ambient temperature rises to a suitable range, this function effectively prevents the power module from performing a power-on start-up operation, thereby avoiding current surges and component damage caused by cold starts. In this embodiment, the heating device 6 is installed in the lower middle section inside the cabinet door of the main control cabinet 1. When the cabinet door is closed, the heating device 6 is positioned directly opposite the main control power module 4. This arrangement allows the heating device 6 to directly transfer heat to the main control power module 4, effectively heating it, improving its operating environment in low-temperature conditions, and ensuring its normal start-up and operation. It is worth noting that in this embodiment, the heating device 6 is a heater with a maximum output power of 800W and an integrated axial fan. With its high power output, this heater can provide sufficient heat to the main control cabinet 1 in the cabin in a short time, effectively meeting the rapid heating requirements in low-temperature environments.

[0041] In an exemplary embodiment of this application, the voltage conversion module 2 includes a Boost boost unit and an LLC resonant converter. The input terminal of the Boost boost unit is connected to any one phase of the three-phase power supply in the cabin, and is used to boost the three-phase line voltage to a preset voltage value. The input terminal of the LLC resonant converter is connected to the output terminal of the Boost boost unit, and the output terminal of the LLC resonant converter is connected to the input terminal of the air circuit breaker 3, and is used to convert the preset voltage value into the rated operating voltage required by the temperature control switch 5 and the heating device 6.

[0042] It should be noted that in this embodiment, the line voltage of the three-phase power supply in the cabin is 400V AC, while the rated operating voltage of the air circuit breaker 3, the temperature control switch 5, and the heating device 6 is 230V AC. The preset boost voltage value of the Boost unit in voltage conversion module 2 is 650V. It is worth noting that the LLC resonant converter used in this embodiment is a half-bridge LLC resonant converter structure. Specifically, the Boost unit first boosts the 400V AC of the cabin three-phase power supply to 650V, and then the half-bridge LLC resonant converter efficiently converts this 650V voltage to 230V AC to meet the operating voltage requirements of the air circuit breaker 3, the temperature control switch 5, and the heating device 6. Compared to traditional heating systems that directly step down the three-phase line voltage to the rated voltage required by the module, the voltage conversion method of stepping up and then stepping down adopted in this embodiment effectively reduces electromagnetic interference, improves the electromagnetic compatibility of the system, significantly reduces energy loss, and improves the energy conversion efficiency of the system, thereby enhancing the performance and reliability of the entire cabin main control cabinet heating system.

[0043] In an exemplary embodiment of this application, the voltage conversion module 2 incorporates an active power filter, which is used to detect and compensate for harmonics in the output current in real time. The compensated total harmonic distortion of current (THDi) is <5%, where the total harmonic distortion of current is an important indicator for measuring the degree of distortion of the current waveform, representing the ratio of the harmonic content in the current to the effective value of the fundamental component.

[0044] In an exemplary embodiment of this application, the air circuit breaker 3 has its contacts in a closed state under normal operating conditions. When an overcurrent or short circuit occurs in the heating circuit, the contacts are automatically opened to cut off the current path.

[0045] It should be noted that in this embodiment, the air circuit breaker 3 is installed directly above the main control power module 4, and its capacity is 5A. When the current in the heating circuit exceeds 5A, the air circuit breaker will automatically trip and cut off the circuit, thereby playing the role of overcurrent protection and short circuit protection.

[0046] In an exemplary embodiment of this application, the temperature control switch 5 has a built-in temperature sensor, which is used to detect the temperature inside the cabinet and compare the detected temperature inside the cabinet with a preset temperature range, and determine the working mode of the heating device 6 based on the comparison result.

[0047] It should be noted that traditional heating systems typically rely on temperature control switches with fixed thresholds. However, this control method suffers from significant response lag, with temperature control errors reaching ±5℃. This can easily lead to frequent cold starts in the power module, potentially causing equipment damage. In this embodiment, the temperature control switch 5 employs a dual-threshold logic control strategy of -10℃ / 5℃. When the internal temperature is less than or equal to -10℃, the temperature control switch 5 will respond quickly and control the heating device 6 to start the high-speed heating mode. In this mode, the heating device 6 operates at full power of 800W. When the internal temperature is greater than -10℃ but less than or equal to 5℃, the temperature control switch 5 will automatically adjust the control strategy to switch the heating device 6 to the normal heating mode. This mode allows for flexible adjustment of the heating power according to actual needs. When the internal temperature is greater than 5℃ but less than or equal to 10℃, the temperature control switch 5 will control the heating device 6 to enter the constant temperature maintenance mode. In this mode, the heating device 6 operates at 400W. When the internal temperature is greater than 10℃, to avoid adverse effects on the equipment due to excessive temperature, the temperature control switch 5 will promptly control the heating device 6 to stop heating, achieving energy saving and equipment protection.

[0048] In an exemplary embodiment of this application, the outer surface of the heating device 6 is covered with a nano-scale ceramic insulating coating, which is used to block high-voltage leakage paths to prevent arc discharge.

[0049] In an exemplary embodiment of this application, the core area of ​​the heating device 6 consists of several independent heating modules and standardized guide rail connectors, and each heating module is mechanically fixed to the outer shell of the heating device through the standardized guide rail connectors.

[0050] It should be noted that the heating device 6 adopts a drawer-type heating unit design. This drawer-type heating unit is modularly constructed in accordance with the IP67 protection standard. The drawer-type heating unit supports hot-swappable replacement. Each heating module is connected to the control bus via a standardized guide rail connector. The application of standardized guide rail connectors makes the installation and disassembly of the heating modules simpler and faster, while ensuring the stability and reliability of the connection.

[0051] In an exemplary embodiment of this application, a high thermal conductivity inhibiting silicone heat insulation pad is provided between the core area of ​​the heating device 6 and the outer shell. The high thermal conductivity inhibiting silicone heat insulation pad is used to block heat conduction between the core area of ​​the heating device and the outer shell, so as to reduce the surface temperature of the outer shell.

[0052] It should be noted that in this embodiment, the heating device 6 adopts a double insulation protection design to effectively ensure the operational safety of maintenance personnel and avoid potential safety hazards caused by touching the heating device. The outer shell surface of the heating device 6 is coated with a nano-level ceramic insulating coating. This coating has excellent insulation performance, which can significantly inhibit the accumulation and conduction of charge on the surface, greatly improving the insulation level of the heating device shell. In addition, a high thermal conductivity inhibiting silicone heat insulation gasket is set between the core area of ​​the heating device 6 and the outer shell. This gasket not only has good heat insulation performance, which can effectively reduce the conduction of heat from the core area of ​​the heating device to the outer shell, lower the temperature of the outer shell surface, and prevent maintenance personnel from being burned by contact with the high-temperature outer shell, but its high thermal conductivity inhibiting characteristics can also further prevent current from being transferred from the core area to the outer shell through heat conduction, playing an additional insulating protection role.

[0053] Please see Figure 2 As shown, in an exemplary embodiment of this application, the system further includes a multi-channel high-precision temperature sensing module, which consists of three sets of NTC thermistor arrays 8. The three sets of NTC thermistor arrays 8 are respectively installed along the axial direction of the heating device at the surface monitoring point of the heating device 6, the outer casing monitoring point of the main control power module 4, and the surface monitoring point of the rear cabinet.

[0054] It should be noted that a set of NTC thermistors 8 at the surface monitoring points of the heating device 6 is used to monitor the surface temperature of the heating device 6 to prevent it from being damaged due to overheating. A set of NTC thermistors 8 at the outer casing monitoring points of the main control power module 4 is used to monitor whether the heat generated by the heating device 6 is effectively transferred, and to prevent the main control power module 4 from malfunctioning due to localized high temperatures by monitoring the casing temperature. A set of NTC thermistors 8 at the surface monitoring points of the rear cabinet is used to monitor the overall thermal environment inside the cabinet, which helps to evaluate the system's heat dissipation performance, detect problems such as poor heat dissipation in a timely manner, and ensure that the system maintains a good working condition under various operating conditions.

[0055] Please see Figure 1 As shown, in an exemplary embodiment of this application, the system further includes a three-dimensional adjustable bracket 7. The bottom of the three-dimensional adjustable bracket 7 is fixedly installed on the inside of the cabinet door of the cabin control cabinet 1. The main body of the three-dimensional adjustable bracket is detachably connected to the heating device 6, so that the heating device 6 can achieve multi-degree-of-freedom angle adjustment to ensure that the target heating area is heated evenly.

[0056] It should be noted that the heating device 6 is positioned by the three-dimensional adjustable bracket 7. When the cabinet door is closed, the heating device 6 can be precisely positioned directly opposite the main control power module 4 and maintain an appropriate distance from it to prevent local overheating caused by the heating device 6 being too close to the main control power module 4.

[0057] In summary, please refer to Figure 1 As shown, this utility model provides a cabin main control cabinet heating system, including a voltage conversion module 2, an air circuit breaker 3, a temperature control switch 5, and a heating device 6. The input terminal of the voltage conversion module 2 is connected to any one phase of the cabin's three-phase power supply to convert the three-phase line voltage into the rated operating voltage required by the temperature control switch 5 and the heating device 6. The air circuit breaker 3 is installed directly above the main control power module 4, and its input terminal is connected to the output terminal of the voltage conversion module 2 to prevent overcurrent or short circuit in the heating circuit. The temperature control switch 5 is installed on the side wall of the air inlet of the main control power module 4, and its input terminal is connected to the output terminal of the air circuit breaker 3 to automatically adjust the start and stop of the heating device 6 according to the temperature change inside the cabinet. The heating device 6 is installed inside the cabinet door of the cabin main control cabinet 1, and its power input terminal is connected to the output terminal of the temperature control switch 5 to heat the environment inside the cabinet to ensure the normal start-up of the main control power module 4. This system enables real-time monitoring and precise control of ambient temperature, ensuring that the heating power automatically adjusts according to temperature changes and avoiding temperature response lag. Furthermore, the voltage conversion process is optimized using a high-efficiency power conversion module to reduce electromagnetic interference, improve energy conversion efficiency, and minimize power loss. Moreover, a multi-level protection mechanism is implemented, including overcurrent protection, overvoltage protection, and leakage protection, ensuring safe and stable operation under various abnormal conditions. Additionally, the installation positions of the heating device 6 and the power module 4 are rationally planned to ensure timely heat dissipation and prevent localized overheating.

[0058] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A cabin main control cabinet heating system, characterized in that, include: Voltage conversion module, air circuit breaker, temperature control switch and heating device; The input terminal of the voltage conversion module is connected to any one phase of the three-phase power supply in the cabin, and is used to convert the three-phase line voltage into the rated operating voltage required by the temperature control switch and the heating device. The air circuit breaker is installed directly above the main control power module, and its input terminal is connected to the output terminal of the voltage conversion module to prevent overcurrent or short circuit in the heating circuit. The temperature control switch is installed on the side wall of the air inlet of the main control power module, and its input terminal is connected to the output terminal of the air circuit breaker. It is used to automatically adjust the start and stop of the heating device according to the temperature change inside the cabinet. The heating device is installed inside the main control cabinet door of the cabin, and its power input terminal is connected to the output terminal of the temperature control switch to heat the environment inside the cabinet to ensure that the main control power module starts normally.

2. The cabin main control cabinet heating system according to claim 1, characterized in that, The voltage conversion module includes a Boost converter and an LLC resonant converter. The input terminal of the Boost unit is connected to any one phase of the three-phase power supply in the cabin, and is used to boost the three-phase line voltage to a preset voltage value. The input terminal of the LLC resonant converter is connected to the output terminal of the Boost boost unit, and the output terminal of the LLC resonant converter is connected to the input terminal of the air circuit breaker, for converting the preset voltage value into the rated operating voltage required by the temperature control switch and the heating device.

3. The cabin main control cabinet heating system according to claim 2, characterized in that, The voltage conversion module has a built-in active power filter, which is used to detect and compensate for output current harmonics in real time.

4. The cabin main control cabinet heating system according to claim 1, characterized in that, The air circuit breaker has its contacts closed under normal operating conditions. When an overcurrent or short circuit occurs in the heating circuit, the contacts will automatically open to cut off the current path.

5. The cabin main control cabinet heating system according to claim 1, characterized in that, The temperature control switch has a built-in temperature sensor, which is used to detect the temperature inside the cabinet and compare the detected temperature with a preset temperature range. Based on the comparison result, the working mode of the heating device is determined.

6. The cabin main control cabinet heating system according to claim 1, characterized in that, The outer shell of the heating device is covered with a nano-level ceramic insulating coating, which is used to block the high-voltage leakage path to prevent arc discharge.

7. The cabin main control cabinet heating system according to claim 1, characterized in that, The core area of ​​the heating device consists of several independent heating modules and standardized guide rail connectors. Each heating module is mechanically fixed to the outer shell of the heating device through a standardized guide rail connector.

8. The cabin main control cabinet heating system according to claim 1, characterized in that, A high thermal conductivity inhibiting silicone heat insulation pad is provided between the core area of ​​the heating device and the outer shell. The high thermal conductivity inhibiting silicone heat insulation pad is used to block heat conduction between the core area of ​​the heating device and the outer shell, so as to reduce the surface temperature of the outer shell.

9. The cabin main control cabinet heating system according to claim 1, characterized in that, The system also includes a multi-channel high-precision temperature sensing module, which consists of three NTC thermistor arrays. The three NTC thermistor arrays are respectively installed along the axial direction of the heating device at the surface monitoring point of the heating device, the monitoring point of the main control power module housing, and the monitoring point of the rear cabinet surface.

10. The cabin main control cabinet heating system according to claim 1, characterized in that, The system also includes a three-dimensional adjustable bracket, the bottom of which is fixedly installed inside the cabinet door of the cabin control cabinet. The main body of the three-dimensional adjustable bracket is detachably connected to the heating device, enabling the heating device to achieve multi-degree-of-freedom angle adjustment to ensure uniform heating of the target heating area.

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