A multi-level temperature control safety protection system and equipment for digital power module

Abstract

The invention discloses a multi-level temperature control safety protection system and equipment for a digital power module, comprising a temperature monitoring module, a multi-level temperature control module, a power control module, a database and a display module. The invention belongs to the technical field of power module protection systems. The invention aims to solve the problem that the multi-level cooling module in the prior art always complies with the rule of increasing levels to respond to different protection measures, resulting in failure to cool down in time. The technical effect achieved is: by storing and retrieving temperature data change curves and specific measure records in a database and comparing them with the newly received temperature data change curves, the level of cooling measures required for complete cooling is predicted, and a control signal is directly sent to the multi-level temperature control module to achieve the effect of predicting and skipping the execution of cooling measures, thereby solving the problem of failure to cool down in time, reducing the risk of overheating and damage to the digital power module, and extending the service life of the digital power module.

Description

Technical Field

[0001] The present invention relates to the technical field of power module protection systems, and in particular to a multi-level temperature control safety protection system and equipment for a digital power module. Background Art

[0002] Digital power modules are devices used to provide power supply and are commonly used in various electronic devices, communication systems, and industrial automation. These modules use digital technology to manage and adjust power output to meet the power needs of different devices, and usually have a range of functions and features, such as high efficiency, stability, adjustability, and protection mechanisms.

[0003] The multi-level temperature control safety protection system of the digital power module is a system designed to monitor and control the internal temperature of the digital power module, aiming to prevent the module from being damaged or causing safety risks due to overheating. The multi-level temperature control safety protection system is usually composed of multiple levels of protection measures to deal with temperature problems of different severity; however, there is a delay in the data transmission between the traditional temperature monitoring module and the multi-level cooling module, and the multi-level cooling module always abides by the rule of increasing levels to respond to different protection measures, that is, as the temperature rises, it responds to the first-level, second-level, third-level... protection measures in sequence. When a circuit failure occurs in the digital power module and the temperature rises rapidly, the temperature signal detected in real time by the temperature monitoring module cannot be transmitted to the multi-level cooling module in time, and because the multi-level cooling module cannot start the protection measures across levels, it takes too long to respond to the advanced protection measures. When the temperature rise rate of the digital power module is higher than the response speed of the multi-level cooling module, it may cause the multi-level cooling module to just start the first-level protection measures, while the actual temperature of the digital power module has risen to the third-level standard, resulting in the problem of not being able to cool down in time, greatly increasing the risk of overheating and damage to the digital power module, and affecting the service life of the digital power module. Summary of the invention

[0004] To this end, the present invention provides a multi-level temperature control safety protection system and equipment for a digital power module to solve the problem of overheating and damage of the digital power module in the prior art.

[0005] The present invention provides the following technical solutions:

[0006] According to a first aspect of the present invention, a multi-level temperature control safety protection system and device for a digital power module includes a temperature monitoring module, a multi-level temperature control module, a power control module, a database and a display module. Specifically:

[0007] The temperature monitoring module can be used to monitor the temperature of the digital power module in real time. The temperature monitoring module can be used to analyze the real-time monitored temperature data and send a control signal to the multi-stage temperature control module according to the temperature condition of the digital power module. The temperature monitoring module can send the analysis results of the temperature data and its own response behavior records to the database;

[0008] The multi-stage temperature control module can receive the control signal sent by the temperature monitoring module, and the multi-stage temperature control module can implement different levels of cooling measures on the digital power module according to the control signal sent by the temperature monitoring module. The multi-stage temperature control module can receive the control signal sent by the database, and the multi-stage temperature control module can implement different levels of cooling measures on the digital power module according to the control signal sent by the database;

[0009] The multi-level temperature control module is equipped with a temperature high and low classification module, which divides the temperature into levels from low to high. After the temperature monitoring module sends the control signal to the multi-level temperature control module, the multi-level temperature control module immediately corresponds the received signal to the level interval, and then implements the corresponding level of cooling measures according to the temperature level;

[0010] The power control module can be used to control the total power supply of the digital power module to be turned off, and the power control module can receive a control signal sent by the temperature monitoring module, and the power control module can receive a control signal sent by the database;

[0011] The database can receive and store the analysis results of the temperature data sent by the temperature monitoring module and the behavior records of its own response; the database can compare the analysis results of the temperature data and the response behavior record data, the database can send control signals to the multi-stage temperature control module, and the database can send control signals to the power control module;

[0012] The display module can receive the data signal sent by the database, and can parse the data signal sent by the database into a display data signal and display it.

[0013] Furthermore, the temperature monitoring module includes a temperature sensor, a temperature early warning unit and a first communication unit, the temperature sensor is electrically connected to the temperature early warning unit, and the temperature early warning unit is electrically connected to the first communication unit; the temperature sensor can monitor the temperature of the digital power module in real time and generate real-time temperature data, the temperature sensor can send the real-time temperature data to the temperature early warning unit, and the temperature early warning unit is prefabricated with four levels of temperature thresholds. If the temperature data received by the temperature early warning unit exceeds the temperature threshold, the temperature early warning unit will send a control signal to the multi-stage temperature control module through the first communication unit, the temperature early warning unit will generate a temperature data change curve based on the real-time temperature data analysis, and the temperature early warning unit will send the temperature data change curve and the specific measures taken by itself to the database through the first communication unit.

[0014] Furthermore, the multi-stage temperature control module includes a cooling unit, a cooling adjustment unit and a second communication unit, the second communication unit is electrically connected to the cooling unit, and the second communication unit is electrically connected to the cooling adjustment unit; the second communication unit can receive control instructions sent by the first communication unit and the database and respond to the corresponding unit. When the second communication unit receives a first-level control instruction, it will respond to the cooling unit. When the second communication unit receives a second-level or third-level control instruction, it will respond to the cooling adjustment unit.

[0015] Furthermore, the power control module includes a power controller and a fourth communication unit, the power controller is electrically connected to the digital power module, and the power controller is electrically connected to the fourth communication unit; the power controller and the fourth communication unit can receive control instructions sent by the first communication unit and the database and respond to the power controller, and the power controller can cut off the total power supply of the digital power module.

[0016] Furthermore, the database includes a data calling unit, a data storage unit and a third communication unit, the data calling unit and the data storage unit are electrically connected, and the data calling unit and the third communication unit are electrically connected; the third communication unit can receive the temperature data change curve and specific measure records sent by the first communication unit, and the data calling unit can send and store the temperature data change curve and specific measure records received by the third communication unit into the data storage unit.

[0017] Furthermore, the data calling unit can retrieve the temperature data change curve and specific measure records stored in the data storage unit and compare them with the newly received temperature data change curve. The data calling unit can send a control signal to the second communication unit or the fourth communication unit through the third communication unit based on the comparison result.

[0018] Furthermore, it includes a shell, and vents are provided on both sides of the outer wall of the shell, the digital power module is installed on one side of the bottom surface of the inner wall of the shell, a display module is installed on one side of the outer wall of the shell, a power interface is provided on the side of the outer wall of the shell away from the display module, the power interface passes through the shell and is electrically connected to the digital power module, the temperature monitoring module is installed on the top surface of the digital power module, the database is installed on the side of the inner wall of the shell close to the display module, the power control module is installed on the outer wall of the shell above the power interface, the multi-stage temperature control module is installed on the side of the inner wall of the shell away from the digital power module, a guide rail is installed on the bottom surface of the inner wall of the shell, a fan is slidably installed on the guide rail, a hydraulic rod is installed between the side of the fan away from the digital power module and the inner wall of the shell, the cooling unit in the multi-stage temperature control module is electrically connected to the fan, and the cooling adjustment unit in the multi-stage temperature control module is electrically connected to the hydraulic rod.

[0019] The present invention has the following advantages: four levels of temperature thresholds are set in the temperature monitoring module. First, under the operation of the temperature monitoring module and the multi-level temperature control module, different levels of cooling measures will be started in sequence according to the real-time temperature rise of the digital power module, and the temperature monitoring module will analyze the temperature data change curve and specific measure records in this cooling action, and send them to the database for storage; after the database stores sufficient data, the temperature data change curve and specific measure records are retrieved through the database storage and compared with the newly received temperature data change curve, the level of cooling measures required for complete cooling is predicted, and a control signal is directly sent to the multi-level temperature control module to achieve the effect of predicting and skipping the execution of cooling measures, thereby solving the problem of failure to cool down in time, reducing the risk of overheating and damage of the digital power module, and extending the service life of the digital power module. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A framework diagram of a multi-level temperature control safety protection system for a digital power module provided by the present invention.

[0021] Figure 2 A system diagram of a multi-level temperature control safety protection system for a digital power module provided by the present invention.

[0022] Figure 3 A flowchart of a database storing temperature variation curves and specific measures records of a multi-level temperature control safety protection system for a digital power module provided by the present invention.

[0023] Figure 4 A flowchart of executing a skip-level temperature reduction instruction in a database of a cross-sectional diagram of a multi-level temperature control safety protection system of a digital power module provided by the present invention.

[0024] Figure 5A front view of a multi-stage temperature control safety protection device for a digital power module provided by the present invention.

[0025] Figure 6 This is a rear view of a multi-stage temperature control safety protection device for a digital power module provided by the present invention.

[0026] Figure 7 A schematic diagram of the internal structure of a multi-stage temperature control safety protection device for a digital power module provided by the present invention.

[0027] In the figure: 11. shell, 12. vent, 13. display module, 14. power interface, 15. digital power module, 16. temperature monitoring module, 17. multi-stage temperature control module, 18. hydraulic rod, 19. fan, 20. guide rail, 21. database, 22. power control module. DETAILED DESCRIPTION

[0028] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1

[0030] like Figures 1 to 4 As shown, a multi-stage temperature control safety protection system and device for a digital power module in an embodiment of the first aspect of the present invention includes a temperature monitoring module 16, a multi-stage temperature control module 17, a power control module 22, a database 21 and a display module 13, specifically:

[0031] The temperature monitoring module 16 can be used to monitor the temperature of the digital power module 15 in real time. The temperature monitoring module 16 can be used to analyze the temperature data monitored in real time and send a control signal to the multi-stage temperature control module 17 according to the temperature of the digital power module 15. The temperature monitoring module 16 can send the analysis results of the temperature data and its own response behavior records to the database 21;

[0032] The multi-stage temperature control module 17 can receive the control signal sent by the temperature monitoring module 16, and the multi-stage temperature control module 17 can implement different levels of cooling measures on the digital power module 15 according to the control signal sent by the temperature monitoring module 16. The multi-stage temperature control module 17 can receive the control signal sent by the database 21, and the multi-stage temperature control module 17 can implement different levels of cooling measures on the digital power module 15 according to the control signal sent by the database 21;

[0033] The multi-level temperature control module 17 is provided with a temperature high and low classification module, which is used to classify the temperature from low to high. After the control signal sent by the temperature monitoring module 16 is sent to the multi-level temperature control module 17, the multi-level temperature control module 17 immediately corresponds the received signal to the level interval, and then implements the corresponding level of cooling measures according to the temperature level;

[0034] The power control module 22 can be used to control the shut down of the total power supply of the digital power module 15, and the power control module 22 can receive the control signal sent by the temperature monitoring module 16, and the power control module 22 can receive the control signal sent by the database 21;

[0035] The database 21 can receive and store the analysis results of the temperature data sent by the temperature monitoring module 16 and the behavior records of its own response; the database 21 can compare the analysis results of the temperature data and the response behavior record data, the database 21 can send control signals to the multi-stage temperature control module 17, and the database 21 can send control signals to the power control module 22;

[0036] The display module 13 can receive the data signal sent by the database 21, and the display module 13 can parse the data signal sent by the database 21 into a display data signal and display it;

[0037] The technical effect achieved by the above embodiment is as follows: the temperature monitoring module 16 is provided with four levels of temperature thresholds. First, under the operation of the temperature monitoring module 16 and the multi-stage temperature control module 17, different levels of cooling measures will be started in sequence according to the real-time temperature rise of the digital power module 15, and the temperature monitoring module 16 will analyze the temperature data change curve and specific measures record in this cooling action, and send them to the database 21 for storage; after the database 21 stores sufficient data, the temperature data change curve and specific measures record are retrieved through the database 21 storage and compared with the newly received temperature data change curve, and the level of cooling measures required for complete cooling is predicted, and a control signal is directly sent to the multi-stage temperature control module 17 to achieve the effect of predicting and skipping the execution of cooling measures, thereby solving the problem of failure to cool down in time, reducing the risk of overheating and damage of the digital power module, and extending the service life of the digital power module.

[0038] Example 2

[0039] like Figures 1 to 4As shown, a multi-level temperature control safety protection system and device for a digital power module includes all the contents of Example 1. In addition, the temperature monitoring module 16 includes a temperature sensor, a temperature early warning unit and a first communication unit. The temperature sensor is electrically connected to the temperature early warning unit, and the temperature early warning unit is electrically connected to the first communication unit; the temperature sensor can monitor the temperature of the digital power module 15 in real time and generate real-time temperature data, and the temperature sensor can send the real-time temperature data to the temperature early warning unit. The temperature early warning unit is prefabricated with four levels of temperature thresholds. If the temperature data received by the temperature early warning unit exceeds the temperature threshold, the temperature early warning unit will send a control signal to the multi-level temperature control module 17 through the first communication unit, and the temperature early warning unit will generate a temperature data change curve according to the real-time temperature data analysis. The temperature early warning unit will send the temperature data change curve and the specific measures taken by itself to the database 21 through the first communication unit; the multi-level temperature control module 17 includes a cooling unit, a cooling adjustment unit and a second communication unit, the second communication unit is electrically connected to the cooling unit, and the second communication unit is electrically connected to the cooling adjustment unit; the second communication unit can receive the control instructions sent by the first communication unit and the database 21 and respond to the corresponding single element, when the second communication unit receives the first-level control instruction, it will respond to the cooling unit, and when the second communication unit receives the second-level and third-level control instructions, it will respond to the cooling adjustment unit; the power control module 22 includes a power controller and a fourth communication unit, the power controller is electrically connected to the digital power module 15, and the power controller is electrically connected to the fourth communication unit; the power controller and the fourth communication unit can receive the control instructions sent by the first communication unit and the database 21 and respond to the power controller, and the power controller can cut off the total power of the digital power module 15; the database 21 includes a data calling unit, a data storage unit and a third communication unit, the data calling unit is electrically connected to the data storage unit, and the data calling unit is electrically connected to the third communication unit; the third communication unit can receive the temperature data change curve and specific measure record sent by the first communication unit, and the data calling unit can send and store the temperature data change curve and specific measure record received by the third communication unit into the data storage unit; the data calling unit can retrieve the temperature data change curve and specific measure record stored in the data storage unit and compare them with the newly received temperature data change curve, and the data calling unit can send a control signal to the second communication unit or the fourth communication unit through the third communication unit according to the comparison result;

[0040] The technical effects achieved by the above embodiments are:

[0041] First, the temperature sensor monitors the temperature of the digital power module 15 in real time, and sends the real-time temperature data to the temperature warning unit. The temperature warning unit receives and analyzes the real-time temperature data, and makes decisions in sequence as the real-time temperature rises. If the temperature data is higher than the first-level temperature threshold, the first communication unit sends a first-level measure signal to the second communication unit, and the second communication unit sends an opening instruction to the cooling unit; if the temperature continues to rise and is higher than the second-level temperature threshold, the first communication unit sends a second-level measure signal to the second communication unit, and the second communication unit sends a half-process instruction to the cooling adjustment unit; if the temperature continues to rise and is higher than the third-level temperature threshold, the first communication unit sends a third-level measure signal to the second communication unit, and the second communication unit sends a full-process instruction to the cooling adjustment unit; if the temperature still cannot be relieved and continues to rise above the fourth-level temperature threshold, the first communication unit sends a fourth-level measure signal to the fourth communication unit. The fourth communication unit sends a shutdown command to the power controller to cut off the power supply of the digital power module 15; during the whole process, the temperature sensor monitors the temperature of the digital power module in real time, and sends the real-time temperature data to the temperature early warning unit. The temperature early warning unit analyzes the real-time temperature data and draws the conclusion that the real-time temperature drops to a normal value. After that, the temperature early warning unit obtains the temperature data change curve of the equipment and the specific measures taken through data analysis. The first communication unit sends the temperature data change curve of the equipment and the specific measures taken to the third communication unit. The third communication unit receives the temperature data change curve and the specific measures taken and sends them to the data calling unit. The data calling unit sends the temperature data change curve and the specific measures taken to the data storage unit for storage. At this point, the storage of the temperature data change curve and the specific measures taken for a cooling operation is completed.

[0042] After the data storage unit stores enough temperature data change curves and records of specific measures taken, if the digital power module 15 overheats again, the temperature sensor will monitor the temperature of the digital power module in real time and send the real-time temperature data to the temperature warning unit. The temperature warning unit receives and analyzes the real-time temperature data to obtain the temperature data change curve. The first communication unit sends the temperature data change curve data to the third communication unit. The third communication unit receives the temperature data change curve data and sends it to the data calling unit. The data calling unit retrieves the specific measure records corresponding to the temperature data change curve from the data storage unit. The data calling unit predicts the level of measures required for complete cooling based on previous specific measure records. Finally, the third communication unit sends a corresponding control signal to the second communication unit or the fourth communication unit according to the predicted level of measures to respond to the cooling measures of the corresponding level to achieve a rapid cooling effect.

[0043] Example 3

[0044] like Figures 5 to 7As shown, a multi-stage temperature control safety protection system and device for a digital power module includes all the contents of Example 2, and in addition, includes a shell 11, the outer wall of the shell 11 is provided with vents 12 on both sides, the digital power module 15 is installed on one side of the bottom surface of the inner wall of the shell 11, the outer wall of the shell 11 is provided with a display module 13, the outer wall of the shell 11 is provided with a power interface 14 on the side away from the display module 13, the power interface 14 penetrates the shell 11 and is electrically connected to the digital power module 15, the temperature monitoring module 16 is installed on the top surface of the digital power module 15, and the database 21 is installed on the shell 11 The power control module 22 is installed on the outer wall of the shell 11 above the power interface 14 on the side of the inner wall close to the display module 13, the multi-stage temperature control module 17 is installed on the side of the inner wall of the shell 11 away from the digital power module 15, the bottom surface of the inner wall of the shell 11 is installed with a guide rail 20, a fan 19 is slidably installed on the guide rail 20, a hydraulic rod 18 is installed between the side of the fan 19 away from the digital power module 15 and the inner wall of the shell 11, the cooling unit in the multi-stage temperature control module 17 is electrically connected to the fan 19, and the cooling adjustment unit in the multi-stage temperature control module 17 is electrically connected to the hydraulic rod 18;

[0045] The technical effects achieved by the above embodiments are as follows: when the second communication unit sends an opening instruction to the cooling unit, the cooling unit starts the fan 19; when the second communication unit sends a half-process instruction to the cooling adjustment unit, the cooling adjustment unit starts the hydraulic rod 18 to extend half the distance; when the second communication unit sends a full-process instruction to the cooling adjustment unit, the cooling adjustment unit starts the hydraulic rod 18 to extend the full distance; when the fourth communication unit sends a closing instruction to the power controller, the power controller cuts off the power supply to the digital power module 15, so as to achieve the effect of responding to different levels of cooling measures.

[0046] Working principle: First, the temperature sensor monitors the temperature of the digital power module 15 in real time, and sends the real-time temperature data to the temperature warning unit. The temperature warning unit receives and analyzes the real-time temperature data, and makes decisions in sequence as the real-time temperature rises. If the temperature data is higher than the first-level temperature threshold, the first communication unit sends a first-level measure signal to the second communication unit, and the second communication unit sends an opening instruction to the cooling unit; if the temperature continues to rise and is higher than the second-level temperature threshold, the first communication unit sends a second-level measure signal to the second communication unit, and the second communication unit sends a half-process instruction to the cooling adjustment unit; if the temperature continues to rise and is higher than the third-level temperature threshold, the first communication unit sends a third-level measure signal to the second communication unit, and the second communication unit sends a full-process instruction to the cooling adjustment unit; if the temperature still cannot be alleviated and continues to rise above the fourth-level temperature threshold, the first communication unit sends a fourth communication unit. The fourth communication unit sends a four-level measure signal, and the fourth communication unit sends a shutdown command to the power controller to cut off the power supply of the digital power module 15; during the whole process, the temperature sensor monitors the temperature of the digital power module in real time, and sends the real-time temperature data to the temperature early warning unit. The temperature early warning unit analyzes the real-time temperature data and draws the conclusion that the real-time temperature drops to a normal value. After that, the temperature early warning unit obtains the temperature data change curve of the equipment and the specific measures taken through data analysis. The first communication unit sends the temperature data change curve of the equipment and the specific measures taken to the third communication unit. The third communication unit receives the temperature data change curve and the specific measures taken and sends them to the data calling unit. The data calling unit sends the temperature data change curve and the specific measures taken to the data storage unit for storage. At this point, the storage of the temperature data change curve and the specific measures taken for a cooling operation is completed.

[0047] After the data storage unit stores enough temperature data change curves and records of specific measures taken, if the digital power module 15 overheats again, the temperature sensor will monitor the temperature of the digital power module in real time and send the real-time temperature data to the temperature warning unit. The temperature warning unit receives and analyzes the real-time temperature data to obtain the temperature data change curve. The first communication unit sends the temperature data change curve data to the third communication unit. The third communication unit receives the temperature data change curve data and sends it to the data calling unit. The data calling unit retrieves the specific measure records corresponding to the temperature data change curve from the data storage unit. The data calling unit predicts the level of measures required for complete cooling based on previous specific measure records. Finally, the third communication unit sends a corresponding control signal to the second communication unit or the fourth communication unit according to the predicted level of measures to respond to the cooling measures of the corresponding level to achieve a rapid cooling effect.

Claims

1. A multi-stage temperature control safety protection system for a digital power module, comprising a temperature monitoring module (16), a multi-stage temperature control module (17), a power control module (22), a database (21) and a display module (13), specifically: The temperature monitoring module (16) is used to monitor the temperature of the digital power module (15) in real time, the temperature monitoring module (16) is used to analyze the temperature data monitored in real time, and send a control signal to the multi-stage temperature control module (17) according to the temperature condition of the digital power module (15), and the temperature monitoring module (16) sends the analysis result of the temperature data and the behavior record of its own response to the database (21); It is characterized in that The multi-stage temperature control module (17) receives a control signal sent by the temperature monitoring module (16), and the multi-stage temperature control module (17) implements different levels of cooling measures on the digital power module (15) according to the control signal sent by the temperature monitoring module (16); the multi-stage temperature control module (17) receives a control signal sent by the database (21), and the multi-stage temperature control module (17) implements different levels of cooling measures on the digital power module (15) according to the control signal sent by the database (21); A temperature high and low classification module is provided in the multi-level temperature control module (17), and the temperature is classified into grades from low to high. After the control signal sent by the temperature monitoring module (16) is sent to the multi-level temperature control module (17), the multi-level temperature control module (17) immediately corresponds the received signal to the grade interval, and then implements the corresponding grade of cooling measures according to the temperature grade; The power control module (22) is used to control the shutting down of the total power supply of the digital power supply module (15), the power control module (22) receiving a control signal sent by the temperature monitoring module (16), and the power control module (22) receiving a control signal sent by the database (21); The database (21) receives and stores the analysis results of the temperature data sent by the temperature monitoring module (16) and the behavior record of its own response; the database (21) compares the analysis results of the temperature data and the response behavior record data, the database (21) sends a control signal to the multi-stage temperature control module (17), and the database (21) sends a control signal to the power control module (22); The display module (13) is capable of receiving a data signal sent by a database (21), and the display module (13) parses the data signal sent by the database (21) into a display data signal and displays it. The temperature monitoring module (16) comprises a temperature sensor, a temperature warning unit and a first communication unit, the temperature sensor is electrically connected to the temperature warning unit, and the temperature warning unit is electrically connected to the first communication unit; the temperature sensor monitors the temperature of the digital power module (15) in real time and generates real-time temperature data, and the temperature sensor sends the real-time temperature data to the temperature warning unit. The temperature warning unit is prefabricated with four levels of temperature thresholds. If the temperature When the temperature data received by the temperature warning unit exceeds the temperature threshold, the temperature warning unit will send a control signal to the multi-stage temperature control module (17) through the first communication unit. The temperature warning unit will generate a temperature data change curve based on the real-time temperature data analysis. The temperature warning unit will send the temperature data change curve and the specific measures taken by itself to the database (21) through the first communication unit. The multi-stage temperature control module (17) includes a cooling unit, a cooling adjustment unit and a second communication unit. The second communication unit is electrically connected to the cooling unit. The second communication unit is electrically connected to the cooling adjustment unit. The second communication unit receives the first communication unit and the database (21). ) and respond to the corresponding unit; when the second communication unit receives the first-level control instruction, it will respond to the cooling unit; when the second communication unit receives the second-level and third-level control instructions, it will respond to the cooling adjustment unit; the power control module (22) includes a power controller and a fourth communication unit; the power controller is electrically connected to the digital power module (15); the power controller is electrically connected to the fourth communication unit; the power controller and the fourth communication unit can receive the control instructions sent by the first communication unit and the database (21) and respond to the power controller; the power controller cuts off the main power supply of the digital power module (15); the database (21) includes a data calling unit and a data storage unit And the third communication unit, the data calling unit and the data storage unit are electrically connected, and the data calling unit and the third communication unit are electrically connected; the third communication unit receives the temperature data change curve and the specific measure record sent by the first communication unit, the data calling unit sends the temperature data change curve and the specific measure record received by the third communication unit and stores them in the data storage unit, the data calling unit retrieves the temperature data change curve and the specific measure record stored in the data storage unit and compares them with the newly received temperature data change curve, and the data calling unit sends a control signal to the second communication unit or the fourth communication unit through the third communication unit according to the comparison result.

2. A device using a multi-level temperature control safety protection system for a digital power module as claimed in claim 1, characterized in that: The invention comprises a shell (11), the outer wall of the shell (11) is provided with vents (12) on both sides, the digital power module (15) is installed on one side of the bottom surface of the inner wall of the shell (11), the outer wall of the shell (11) is provided with a display module (13), the outer wall of the shell (11) is provided with a power interface (14) on the side away from the display module (13), the power interface (14) penetrates the shell (11) and is electrically connected to the digital power module (15), the temperature monitoring module (16) is installed on the top surface of the digital power module (15), the database (21) is installed on the inner wall of the shell (11) on the side close to the display module (13), and the power control module (16) is installed on the upper surface of the digital power module (15). The block (22) is mounted on the outer wall of the shell (11) above the power interface (14); the multi-stage temperature control module (17) is mounted on the inner wall of the shell (11) on a side away from the digital power module (15); a guide rail (20) is mounted on the bottom surface of the inner wall of the shell (11); a fan (19) is slidably mounted on the guide rail (20); a hydraulic rod (18) is mounted between the side of the fan (19) away from the digital power module (15) and the inner wall of the shell (11); a cooling unit in the multi-stage temperature control module (17) is electrically connected to the fan (19); and a cooling adjustment unit in the multi-stage temperature control module (17) is electrically connected to the hydraulic rod (18).

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