Power heating system

Abstract

This disclosure provides a power heating system and relates to the technical field of power safety control. [Solution] The system includes a power supply unit, a heating plate, and an external control unit. The power supply unit is connected to the heating plate, and both the heating plate and the power supply unit are connected to the external control unit. The external control unit monitors the power supply temperature, compares the power supply temperature with a preset temperature threshold, and adjusts the operating state of the heating plate to on or off based on the comparison result. The external control unit intelligently monitors the power supply temperature and adjusts the operating state of the heating plate, effectively preventing DC bus fault trips in low-temperature environments of high-frequency power supply cabinets, improving equipment reliability and stability, and reducing downtime and maintenance costs due to fault trips.

Description

Technical Field

[0001] The present disclosure relates to the technical field of power supply safety control, and particularly to a power supply heating system.

Background Art

[0002] In a low-temperature environment, the DC bus (DC-Link) of a high-frequency power supply cabinet faces the risk of fault tripping. This fault tripping not only affects the normal operation of the equipment, but may also damage the entire system, causing unnecessary downtime and maintenance costs. Therefore, it is particularly important to find an effective method to prevent such fault tripping in a low-temperature environment.

[0003] Currently, in related technologies, in order to solve the problem of fault tripping of a high-frequency power supply cabinet in a low-temperature environment, insulation measures for the equipment itself are often added. However, the insulation measures in related technologies cannot provide sufficient heat to maintain the stable operation of the equipment in a low-temperature environment.

Summary of the Invention

Problems to be Solved by the Invention

[0004] In order to solve the problems in related technologies, the present disclosure provides a power supply heating system that monitors the power supply temperature in real time, compares it with a preset temperature threshold, and smartly adjusts the operating state of the heating plate, thereby improving the reliability and stability of the equipment and reducing the downtime and maintenance costs caused by fault tripping.

Means for Solving the Problems

[0005] According to an embodiment of the first aspect of the present disclosure, a power heating system is proposed, which includes a power supply unit, a heating plate, and an external control unit, wherein the power supply unit is connected to the heating plate, and both the heating plate and the power supply unit are connected to the external control unit, which is used to monitor the power supply temperature, compare the power supply temperature with the magnitude of a preset temperature threshold, and adjust the operating state of the heating plate to on or off based on the comparison result.

[0006] In some embodiments, the power supply unit includes a rectifier transformer, inside which is a coolant chamber, and a heating plate is attached to the outer wall of the rectifier transformer or placed inside the coolant chamber to heat the coolant by heat conduction.

[0007] In some embodiments, a thermally conductive silica gel sheet is provided between the rectifier transformer and the heating plate.

[0008] In some embodiments, the surface of the heating plate is covered with an insulating layer to electrically isolate it from the transformer oil during heating.

[0009] In some embodiments, the external control unit is located inside the rectifier transformer or near the coolant chamber and includes a temperature sensor to monitor temperature information inside the rectifier transformer in real time and to use the temperature information as the power supply temperature.

[0010] In some embodiments, the external control unit further includes a temperature controller that receives the power supply temperature transmitted by a temperature sensor and adjusts the operating state of the heating plate to ON if the power supply temperature is above a preset temperature threshold.

[0011] In some embodiments, the system further includes an overheat protection device connected to a heating plate and a rectifier transformer, which turns off the heating plate when it detects that the heating plate or power supply temperature is above a preset overheating temperature.

[0012] In some embodiments, the system further includes a remote monitoring module that communicates with a temperature controller and acquires and displays the power supply temperature and the operating status of the heating plate.

[0013] In some embodiments, when the rectifier transformer is in a low-load or standby state, the temperature controller is used to adjust the heating plate to a low-power consumption mode.

[0014] In some embodiments, the system further includes an alert unit, each connected to a heating plate, a temperature sensor, and a temperature controller, which identifies whether the operating state of the heating plate and / or the temperature sensor and / or the temperature controller is abnormal, and if the operating state is abnormal, provides an alert push. [Effects of the Invention]

[0015] In summary, the power heating system according to this disclosure includes a power supply unit, a heating plate, and an external control unit. The power supply unit is connected to the heating plate, and both the heating plate and the power supply unit are connected to the external control unit. The external control unit monitors the power supply temperature, compares the power supply temperature with a preset temperature threshold, and adjusts the operating state of the heating plate to on or off based on the comparison result. The external control unit intelligently monitors the power supply temperature and adjusts the operating state of the heating plate, effectively preventing DC bus fault trips in low-temperature environments of high-frequency power supply cabinets, improving equipment reliability and stability, and reducing downtime and maintenance costs due to fault trips.

[0016] Please understand that the above general explanation and the detailed explanation below are illustrative and interpretive and do not limit this disclosure. [Brief explanation of the drawing]

[0017] The drawings herein are incorporated into and constitute part of the specification, illustrate embodiments conforming to the disclosure, and are used together with the specification to interpret the principles of the disclosure, and do not constitute an inappropriate limitation to the disclosure.

[0018] [Figure 1] This is a schematic diagram of a power heating system based on an example of application of this disclosure. [Figure 2] This is a schematic flowchart of a power heating method according to an example of application of this disclosure. [Figure 3] This is a schematic diagram of a power heating device according to an example of application of this disclosure. [Figure 4] This is a schematic diagram of the configuration of an electronic device based on an example of application of this disclosure. [Modes for carrying out the invention]

[0019] The embodiments of this disclosure are described in detail below. Examples of embodiments are shown in the drawings, and the same or similar reference numerals from beginning to end represent the same or similar elements, or elements having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and are intended to be interpretable as part of this disclosure, but not to be understood as limitations thereto.

[0020] In low-temperature environments, the DC-Link of high-frequency power cabinets faces the risk of failure tripping. This failure tripping not only affects the normal operation of the equipment but can also damage the entire system, leading to unnecessary downtime and maintenance costs. Therefore, finding effective methods to prevent failure tripping in such low-temperature environments is particularly important.

[0021] Currently, related technologies often involve adding thermal insulation measures to the equipment itself to solve the problem of DC bus fault tripping in low-temperature environments of high-frequency power supply cabinets. However, these thermal insulation measures cannot provide enough heat to maintain stable operation of the equipment in low-temperature environments, affecting the equipment's performance and efficiency.

[0022] Regarding the problems of the above related technologies, the power heating system of the present disclosure monitors the power supply temperature in real time and compares it with a preset temperature threshold, and smartly adjusts the operating state of the heating plate, thereby effectively preventing DC-Link fault trips in the low-temperature environment of the high-frequency power supply cabinet. This system not only improves the reliability and stability of the equipment, but also reduces the downtime and maintenance costs caused by fault trips. Furthermore, this system has advantages such as a simple structure, easy implementation and maintenance, and provides an effective solution for operation in the low-temperature environment of the high-frequency power supply cabinet.

[0023] Hereinafter, in combination with the drawings, the implementation of the power heating system, method, device, electronic device and medium according to the present disclosure will be described in detail.

[0024] FIG. 1 is a schematic diagram of a power heating system according to an embodiment of the present disclosure. As shown in FIG. 1, this system includes a power supply unit, a heating plate and an external control unit, the power supply unit is connected to the heating plate, and both the heating plate and the power supply unit are connected to the external control unit, the external control unit is used to monitor the power supply temperature, compare the magnitude of the power supply temperature with a preset temperature threshold, and adjust the operating state of the heating plate to on or off based on the comparison result.

[0025] Among them, the power supply unit is directly connected to the heating plate and is used to provide a stable power supply to ensure that the heating plate operates normally. The heating plate is used to generate heat when necessary to increase the power supply temperature. The external control unit is used to monitor the temperature of the power supply unit and control the operating state of the heating plate based on a preset temperature threshold. When the power supply temperature is lower than the preset temperature threshold, the heating plate is turned on to increase the temperature, but when the power supply temperature is above the preset temperature threshold, the heating plate is turned off to prevent overheating.

[0026] To ensure clarity, this disclosure assumes that the initial operating state of the heating plate is set to the off state, at which time the power supply temperature is within the normal range. The external control unit continuously monitors the power supply temperature and compares the monitored temperature with a preset temperature threshold. If the power supply temperature is lower than the preset temperature threshold, the external control unit sends a corresponding control signal to the heating plate, causing it to start operating and generate heat. However, if the power supply temperature is above the preset temperature threshold, the heating plate remains off.

[0027] In some embodiments, the power supply unit includes a rectifier transformer, inside which is a coolant chamber, and a heating plate is attached to the outer wall of the rectifier transformer or placed inside the coolant chamber to heat the coolant by heat conduction.

[0028] A rectifier transformer is a critical component in a power supply unit, responsible for converting incoming alternating current (AC) electricity into direct current (DC) electricity, or for adjusting the voltage level to accommodate different power demands. Inside the rectifier transformer is a coolant chamber designed to effectively dissipate heat and prevent damage from overheating. The coolant chamber is located inside the rectifier transformer and is used to contain coolant. The coolant circulates during the transformer's operation, absorbing and removing the generated heat, thereby maintaining the transformer's temperature within a safe range. The coolant may be water, oil, or other suitable heat transfer medium.

[0029] The heating plate may be a component mounted on the outer wall of the rectifier transformer or placed inside the coolant chamber to heat the coolant by heat conduction. When the power supply unit needs to preheat or maintain a constant operating temperature, the heating plate turns on and generates heat. This heat is transferred to the coolant by heat conduction, thereby heating the entire power supply unit.

[0030] The mounting position of the heating plates is adjustable, and the position and number of heating plates can be flexibly adjusted based on the specific structure and cooling requirements of the rectifier transformer in order to achieve optimal heating effect and temperature distribution.

[0031] In some embodiments, a thermally conductive silica gel sheet is provided between the rectifier transformer and the heating plate.

[0032] A thermally conductive silica gel sheet may be provided between the rectifier transformer and the heating plate. The thermally conductive silica gel sheet is a highly efficient heat-conducting material that can uniformly transfer the heat generated on the heating plate to the rectifier transformer or the coolant in the coolant chamber. In this disclosure, providing a thermally conductive silica gel sheet helps to improve heat conduction efficiency and ensures that the heat generated on the heating plate can be rapidly and uniformly distributed throughout the coolant chamber.

[0033] In some embodiments, the surface of the heating plate is covered with an insulating layer to electrically isolate it from the transformer oil during heating.

[0034] The surface of the heating plate is coated with an insulating layer to ensure electrical isolation from the transformer oil (or any other electrical medium that may be present) during heating. The insulating layer prevents current from flowing directly into the transformer oil through the heating plate, thereby avoiding potential safety hazards such as electrical short circuits and fires. The insulating layer is generally manufactured from insulating materials that can withstand high temperatures and high voltages in order to maintain stable electrical isolation performance during heating.

[0035] In some embodiments, the external control unit is located inside the rectifier transformer or near the coolant chamber and includes a temperature sensor to monitor temperature information inside the rectifier transformer in real time and to use the temperature information as the power supply temperature.

[0036] The temperature sensor in this disclosure is installed inside the rectifier transformer or adjacent to the coolant chamber, thereby ensuring that temperature information inside the rectifier transformer can be accurately captured. The temperature sensor monitors the temperature inside the rectifier transformer in real time and transmits this temperature information as power supply temperature data to the temperature controller in the external control unit.

[0037] In some embodiments, the external control unit further includes a temperature controller that receives the power supply temperature transmitted by a temperature sensor and adjusts the operating state of the heating plate to ON if the power supply temperature is above a preset temperature threshold.

[0038] The temperature controller in this disclosure can receive power supply temperature data from a temperature sensor and compare it with a preset temperature threshold. Based on the comparison result, the temperature controller intelligently adjusts the operating state of the heating plate. If the power supply temperature is lower than the preset temperature threshold, the temperature controller sends a signal to turn on the heating plate and raise the temperature, and if the power supply temperature is equal to or above the preset temperature threshold, it sends a signal to turn off the heating plate to prevent overheating.

[0039] In some embodiments, the system further includes an overheat protection device connected to a heating plate and a rectifier transformer, which turns off the heating plate when it detects that the heating plate or power supply temperature is above a preset overheating temperature.

[0040] The overheat protection device is a safety protection wire of the system and is tightly connected to the heating plate and rectifier transformer. If the heating plate or power supply temperature is detected to have reached or exceeded a preset overheating temperature, the overheat protection device will immediately activate and turn off the heating plate to prevent potential overheating damage or safety accidents.

[0041] In some embodiments, the system further includes a remote monitoring module that communicates with a temperature controller and acquires and displays the power supply temperature and the operating status of the heating plate.

[0042] The remote monitoring module is connected to the temperature controller and is used to acquire power supply temperature and heating plate operating status in real time. The remote monitoring module has a display function that shows this important information on the user interface, allowing the operator to understand the system's operating status at any time and perform necessary monitoring and management.

[0043] In some embodiments, when the rectifier transformer is in a low-load or standby state, the temperature controller is used to adjust the heating plate to a low-power consumption mode.

[0044] This disclosure further allows for the use of a temperature controller to adjust the heating plate to a low power consumption mode, thereby reducing unnecessary energy consumption.

[0045] In some embodiments, the system further includes an alert unit, each connected to a heating plate, a temperature sensor, and a temperature controller, which identifies whether the operating state of the heating plate and / or the temperature sensor and / or the temperature controller is abnormal, and if the operating state is abnormal, provides an alert push.

[0046] The alert unit is tightly connected to the heating plate, temperature sensor, and temperature controller. The alert unit can identify whether the operating status of these components is abnormal. If an abnormal condition is detected, such as a failure of the heating plate, a malfunction of the temperature sensor, or a malfunction of the temperature controller, the alert unit will immediately issue an alert push, notifying the operator to take immediate action to investigate and repair the problem.

[0047] As described above, this system intelligently monitors the power supply temperature and adjusts the operating status of the heating plate via an external control unit, effectively preventing DC bus fault trips in low-temperature environments of high-frequency power supply cabinets, improving equipment reliability and stability, reducing downtime and maintenance costs due to fault trips, and significantly improving system reliability and safety through the addition of a remote monitoring module and alert unit.

[0048] Figure 2 is a schematic flowchart of a power heating method according to an embodiment of the present disclosure. As shown in Figure 2, this method includes the following steps.

[0049] Step 101 is to obtain the power supply temperature.

[0050] In the embodiments of this disclosure, a temperature sensor in an external control unit can acquire temperature information of a rectifier transformer in a power supply unit in real time, and transmit this temperature information as the power supply temperature to a temperature controller in the external control unit.

[0051] Step 102 compares the power supply temperature with the magnitude of a preset temperature threshold, and based on the comparison result, adjusts the operating state of the heating plate to on or off, thereby raising or lowering the battery temperature.

[0052] In the embodiments of this disclosure, when the temperature controller receives the power supply temperature transmitted by the temperature sensor, it compares the power supply temperature with a preset temperature threshold and can intelligently adjust the operating state of the heating plate based on the comparison result. If the power supply temperature is lower than the preset temperature threshold, the temperature controller sends a signal to turn on the heating plate and raise the temperature, and if the power supply temperature is equal to or greater than the preset temperature threshold, it sends a signal to turn off the heating plate to prevent overheating.

[0053] Furthermore, this disclosure allows for the real-time display of power supply temperature and heating plate operating status, enabling operators to understand the system's operating status at any time and perform necessary monitoring and management.

[0054] Furthermore, this disclosure monitors the power supply temperature and the heating plate temperature in real time, and prevents potential overheating damage and safety accidents by turning off the heating plate if the power supply temperature monitored in real time is above a first preset overheating temperature or the heating plate temperature is above a second preset overheating temperature. The first preset overheating temperature and the second preset overheating temperature may be the same or different, and are set according to the actual demand, and are not limited in the embodiments of this disclosure.

[0055] This disclosure makes it possible to determine in real time whether the operating status of the heating plate and / or the temperature sensor and / or temperature controller is abnormal, and if the operating status of any one of the heating plate, temperature sensor, and temperature controller is abnormal, an alert push can be immediately issued. The alert push may be a pop-up alert on the user interface or an audio alert, and is not limited in the embodiments of this disclosure.

[0056] The alert unit is tightly connected to the heating plate, temperature sensor, and temperature controller. The alert unit can identify whether the operating status of these components is abnormal. If an abnormal condition is detected, such as a failure of the heating plate, a malfunction of the temperature sensor, or a malfunction of the temperature controller, the alert unit will immediately issue an alert push, notifying the operator to take immediate action to investigate and repair the problem.

[0057] It should be noted that when the rectifier transformer is in a low-load or standby state, the heating plate can be adjusted to a low-power consumption mode to reduce energy loss.

[0058] In summary, the power supply heating method according to the embodiment of this disclosure acquires the power supply temperature, compares the power supply temperature with the magnitude of a preset temperature threshold, and adjusts the operating state of the heating plate to on or off based on the comparison result, thereby raising or lowering the battery temperature. This enables smart monitoring of the power supply temperature and adjustment of the operating state of the heating plate, effectively preventing DC bus fault trips in low-temperature environments of power supply cabinets, improving the reliability and stability of the equipment, and reducing downtime and maintenance costs due to fault trips.

[0059] To realize the power heating method according to the embodiments of this disclosure, the embodiments of this disclosure further provide a power heating device. As shown in Figure 3, the power heating device 300 is An acquisition unit 310 for obtaining the power supply temperature, The system includes a control unit 320 that compares the power supply temperature with a preset temperature threshold, adjusts the operating state of the heating plate to on or off based on the comparison result, and raises or lowers the battery temperature.

[0060] Those skilled in the art should understand that the functions of each unit in the power heating device 300 shown in Figure 3 can be understood by referring to the description of the power heating method described above. The functions of each unit in the power heating device 300 shown in Figure 3 may be realized by a program running on a processor, or by a specific logic circuit. In the power heating device 300 according to the above embodiment, only the division of each program unit is given as an example when performing power heating, but in actual applications, the above processing can be assigned to different program units and completed as needed, that is, the internal structure of the system can be divided into different program units to complete all or part of the above processing. Furthermore, the power heating device 300 according to the above embodiment belongs to the same concept as the embodiment of the power heating method, and its specific implementation process will not be explained further here, referring to the embodiment of the method.

[0061] Based on the hardware implementation of the program unit in the power heating device 400 of the present disclosure, the present disclosure further provides an electronic device 400 for implementing the power heating method according to an embodiment of the present disclosure. As shown in Figure 4, Figure 4 is a schematic diagram of the configuration of an electronic device according to an embodiment of the present disclosure, and the electronic device 400 includes a processor 401 for calling and operating a computer program stored in memory 402 and executing the steps of the power heating method according to an embodiment of the present disclosure, and memory 402 for storing the computer program.

[0062] In practical applications, as shown in Figure 4, each component in the electronic device 400 is connected via a bus module 403. To understand this, the bus module 403 is used to enable communication between these components. In addition to the data bus, the bus module 403 further includes a power bus, a control bus, and a status signal bus. However, for clarity, in Figure 4, the various buses are denoted as the bus module 403.

[0063] Embodiments of the present disclosure further provide a non-temporary computer-readable storage medium in which computer instructions are stored. When the computer instructions are executed by a computer, the steps of the power heating method according to embodiments of the present disclosure are realized.

[0064] In some embodiments, the computer-readable storage medium may be a memory such as ferromagnetic random access memory (FRAM), read-only memory (ROM), programmable read-only memory (PROM), eraseable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM), or it may be a variety of devices containing one or any combination of the above memories.

[0065] In some embodiments, computer instructions can be written in any form of programming language (including compiled or interpreted languages, or declarative or process languages) in the form of programs, software, software modules, scripts, or code, and can be deployed in any form, including being deployed in a standalone program, or in a module, component, subroutine, or other unit suitable for use in a computing environment. For example, computer instructions may or may not correspond to files in a file system, may be stored in part of a file that stores other programs or data, for example, in one or more scripts of a Hyper Text Markup Language (HTML) document, may be stored in a single file dedicated to the program being discussed, or may be stored in multiple collaborative files (e.g., files storing one or more modules, subroutines, or code sections). For example, computer instructions can be deployed to run on a single computing device, or on multiple computing devices in one location, or on multiple computing devices distributed across multiple locations and interconnected via a communication network.

[0066] Furthermore, the terms “First,” “Second,” etc., used in the specification and claims of this disclosure and in the drawings above are for distinguishing similar objects and are not necessary to describe a specific order or priority. It should be understood that the data used in this manner are interchangeable where appropriate so that the embodiments of this disclosure described herein may be carried out in any order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments are not representative of all embodiments consistent with this disclosure. In contrast, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure, which are described in detail in the appended claims.

[0067] In this specification, any reference to terms such as “one embodiment,” “several embodiments,” “exemplary embodiment,” “example,” “specific example,” or “several examples” means that the specific features, structures, materials, or properties described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the general expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or properties described may be combined in appropriate ways in any one or more embodiments or examples.

[0068] Any description of a process or method shown in a flowchart or otherwise described herein may be understood to represent a module, segment, or portion of code of an executable instruction that includes one or more steps for realizing a particular logical function or process. Furthermore, the scope of preferred embodiments of the present invention includes additional realizations in which functions can be performed substantially concurrently or in reverse order based on the relevant functions, not in the order illustrated or described, which should be understood by those skilled in the art to which embodiments of the present invention belong.

[0069] The logic and / or steps shown in the flowchart or otherwise described herein may be, for example, considered as a sequence of executable instructions for implementing a particular logical function, and specifically may be implemented on any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including processing modules, or other systems that can extract and execute instructions from an instruction execution system, device or apparatus), or for use in conjunction with such instruction execution systems, devices or apparatus.

[0070] It should be understood that each part of the embodiments of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the embodiments described above, several steps or methods can be implemented using software or firmware stored in memory and executed by an appropriate instruction execution system. For example, when implemented in hardware, as in other embodiments, it can be implemented using one or a combination of any of the technologies well known in the art, such as discrete logic circuits having logic gates for realizing logic functions in data signals, dedicated integrated circuits with appropriate logic gates, programmable gate arrays (PGAs), and field-programmable gate arrays (FPGAs).

[0071] Those skilled in the art will understand that all or part of the steps included in the methods of the embodiments described above can be performed by issuing instructions to the relevant hardware through a program. The program can be stored in a computer-readable storage medium, and when the program is executed, it performs a process that includes one or a combination of the steps in the embodiments of the method.

[0072] Furthermore, each functional unit in each embodiment of the present invention may be integrated into a single processing module, each unit may exist physically independently, or two or more units may be integrated into a single module. The integrated module may be implemented in hardware form or in the form of a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium. The storage medium mentioned above may be read-only memory, a magnetic disk, or an optical disk, etc.

[0073] Although embodiments of the present invention have been described above, these embodiments are illustrative and should not be understood as limitations on the present invention. Those skilled in the art can modify, alter, substitute, and transform these embodiments within the scope of the present invention.

Claims

1. A power heating system, Includes a power supply unit, a heating plate, and an external control unit. The power supply unit is connected to the heating plate, and both the heating plate and the power supply unit are connected to the external control unit. The power heating system is characterized in that the external control unit is used to monitor the power supply temperature, compare the power supply temperature with the magnitude of a preset temperature threshold, and adjust the operating state of the heating plate to on or off based on the comparison result.

2. The power supply unit includes a rectifier transformer, A cooling liquid chamber is provided inside the rectifier transformer. The system according to claim 1, characterized in that the heating plate is attached to the outer wall of the rectifier transformer or placed inside the coolant chamber in order to heat the coolant by heat conduction.

3. The system according to claim 2, characterized in that a heat-conductive silica gel sheet is provided between the rectifier transformer and the heating plate.

4. The system according to claim 2, characterized in that the surface of the heating plate is covered with an insulating layer for electrically separating it from the transformer oil during heating.

5. The aforementioned external control unit is The system according to claim 2, further comprising a temperature sensor provided inside the rectifier transformer or near the coolant chamber, which monitors the temperature information inside the rectifier transformer in real time and uses the temperature information as the power supply temperature.

6. The aforementioned external control unit is The system according to claim 5, further comprising a temperature controller for receiving the power supply temperature transmitted by the temperature sensor and adjusting the operating state of the heating plate to ON if the power supply temperature is equal to or greater than the preset temperature threshold.

7. The aforementioned system, The system according to claim 6, further comprising an overheat protection device connected to the heating plate and the rectifier transformer, which turns off the heating plate when it detects that the heating plate or the power supply temperature is above a preset overheat temperature.

8. The aforementioned system, The system according to claim 6, further comprising a remote monitoring module that is connected to the temperature controller for communication and for acquiring and displaying the power supply temperature and the operating status of the heating plate.

9. The system according to claim 6, characterized in that when the rectifier transformer is in a low-load or standby state, the temperature controller is used to adjust the heating plate to a low-power consumption mode.

10. The aforementioned system, The system according to claim 6, further comprising an alert unit connected to the heating plate, the temperature sensor, and the temperature controller, respectively, for identifying whether the operating state of the heating plate and / or the temperature sensor and / or the temperature controller is abnormal, and for issuing an alert push if the operating state is abnormal.

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