High-power load equipment temperature protection device and method

Abstract

The invention relates to the field of equipment temperature protection, in particular to a high-power load equipment temperature protection device and method. The high-power load equipment comprises a heat insulation plate used for isolating heat generated by the load equipment and a resistance tape arranged on one side of the heat insulation plate, through holes are formed in the two ends of the heat insulation plate and serve as insertion holes for fixing the resistance tape, and the high-power load equipment is characterized in that the heat insulation plate is provided with a straight notch used for installing a temperature control plate (2); the temperature control plate (2) is arranged in a straight notch formed in the heat insulation plate; the radiation temperature controller is fixedly connected to the temperature control board; the radiation temperature controller comprises a connecting piece connected to the temperature control board, a switch arranged in the middle of the connecting piece and used for controlling power-on and power-off of the high-power load equipment and an arc-shaped metal sheet arranged above the switch, a trigger column is arranged in the center of the switch, and the arc-shaped concave inner side of the arc-shaped metal sheet is connected to the trigger column in a buckled mode. According to the invention, the monitoring accuracy and response speed are improved, and equipment damage and safety accidents caused by overheating are avoided.

Description

Technical Field

[0001] The present invention relates to the field of equipment temperature protection, and in particular to a high-power load equipment temperature protection device and method. Background Art

[0002] During the operation of high-power load equipment, the load resistor will generate a lot of heat due to long-term operation. If this heat cannot be dissipated in time, the temperature of the load resistor will be too high, which may burn the equipment and cause safety hazards to the working environment and personnel. Therefore, a heat dissipation device is needed to dissipate the heat generated by the load resistor to keep the equipment temperature within the normal range. At the same time, installing a temperature protection device can quickly take protective action when the load resistor temperature is abnormal to avoid accidents.

[0003] In the prior art, for example, patent CN202872334U "Manual reset overload and overtemperature early warning protection device" discloses an early warning and manual reset protection device, which can send out an early warning signal when the electrical equipment is overloaded and overheated, and keep the power off before the fault is eliminated to ensure the safety of the equipment. However, this device is mainly aimed at small electrical equipment, and its protection mechanism may not be fast and accurate enough for the specific needs of high-power load equipment and high-temperature environments.

[0004] In addition, patent CN213519756U "temperature measurement and temperature control protection device" provides a dual-circuit protection mechanism for temperature measurement and temperature control, which controls the contact assembly to cut off or energize the power through a bimetallic strip to ensure the safety of electricity use. Although this device improves the temperature measurement accuracy and adopts dual-circuit protection, its structural complexity may limit its application in high-power load equipment, especially in situations requiring fast response and high reliability.

[0005] The technical solution of the present application aims to solve the limitations of the prior art, especially in high-power load equipment, the existing over-temperature protection switch has a large hysteresis in the collected temperature due to the large heat capacity of the metal box wall, and often cannot give a protection signal in time, which may lead to further expansion of equipment failures and even accidents such as fire. Therefore, the present application provides a temperature protection device for high-power load equipment. Summary of the invention

[0006] The present invention provides a temperature protection device and method for high-power load equipment, aiming to solve the problem in the prior art that, due to the large heat capacity of the metal box wall, the temperature collected by the over-temperature protection switch has a large hysteresis and cannot give a protection signal in time, resulting in further expansion of equipment failure and even accidents such as fire.

[0007] To achieve the above purpose, the following technical solution is adopted.

[0008] A temperature protection device for a high-power load device, wherein the high-power load device comprises a heat insulation board for isolating the heat generated by the load device and a resistance belt arranged on one side of the heat insulation board, through holes are opened at both ends of the heat insulation board as fixed insertion holes of the resistance belt, and the temperature protection device for a high-power load device comprises: the heat insulation board is opened with a straight slot for installing a temperature control board;

[0009] A temperature control plate is arranged in the straight slot opened on the heat insulation plate;

[0010] A radiation thermostat, fixedly connected to the temperature control board;

[0011] The radiation temperature controller includes a connector connected to the temperature control board, a switch arranged in the middle of the connector for controlling the power on and off of the high-power load equipment, and an arc-shaped metal sheet arranged above the switch. A trigger column is arranged at the center of the switch, and the inner side of the arc-shaped recess of the arc-shaped metal sheet is buckled on the trigger column. One end of the arc-shaped metal sheet is fixedly connected to one side of the switch, and the other end of the arc-shaped metal sheet is connected to the other side of the switch through an external contact.

[0012] Optionally, a plurality of straight slots are arranged in an array on the heat insulation board, each of the straight slots is provided with a temperature control board and a radiation temperature controller fixed on the temperature control board, and the switches are connected in series. When the arc-shaped metal sheet is bent by the temperature, one of the trigger columns is driven to disconnect the corresponding switch, and the high-power load equipment is powered off.

[0013] Optionally, the arc-shaped metal sheet is formed by stacking and pressing at least two metal layers with different thermal expansion coefficients, wherein at least one metal layer has a higher thermal expansion coefficient than other layers.

[0014] Optionally, a central area of ​​the arc-shaped metal sheet is preliminarily a weak area, and the weak area bends first when the temperature rises.

[0015] Optionally, the outer surface of the arc-shaped metal sheet is anodized or coated with a black heat-absorbing material to enhance the absorption efficiency of thermal radiation.

[0016] Optionally, the switch includes a fixed base and at least one movable contact, and the trigger column is slidably arranged on the fixed base;

[0017] The movable contact is elastic, one end of which is connected to the trigger column, and the other end of which is connected to the output end of the switch;

[0018] When the bimetallic strip is heated, the inner side of the arc-shaped recess exerts force on the trigger column, causing the trigger column to move, thereby disconnecting the movable contact from the output end, and the switch is disconnected; the output end of the switch is connected to the power line of a high-power load device to control the power on and off of the device;

[0019] When the bimetallic strip cools down and returns to its initial state, the trigger column automatically returns to its initial position, causing the movable contact to contact the output end again, restoring the switch to a closed state.

[0020] Optionally, there are multiple groups of radiation thermostats, each corresponding to different temperature thresholds, and the radiation thermostats of corresponding specifications are replaced according to the type of high-power load.

[0021] Optionally, it further includes an intelligent control unit, the intelligent control unit including:

[0022] A data collection module, used to collect disconnection times and position information of each of the radiation thermostats, and transmit the information to the intelligent control unit in real time via the wireless communication module;

[0023] Position monitoring module, used to accurately determine the location of temperature changes and identify areas with higher risk of overheating through statistical analysis of disconnection times;

[0024] Historical data analysis module, used to store and analyze historical disconnection data, predict overheating trends through historical data analysis, and propose corresponding preventive measures;

[0025] Fault diagnosis module, used to analyze the cause of temperature rise based on the collected data, provide fault diagnosis results, and recommend solutions;

[0026] Early warning and alarm module: When abnormal disconnection times or location information is detected, early warning and alarm are automatically triggered and notifications are sent to maintenance personnel.

[0027] A high-power load temperature protection method comprises the following steps:

[0028] Install the heat insulation board on the high-power load equipment. There are through holes at both ends of the heat insulation board. Pass the resistance belt through the through holes and fix it;

[0029] Fix the temperature control board in the straight groove opened on the insulation board;

[0030] Select a radiation thermostat with a corresponding temperature threshold according to the type of high-power load, and install the selected radiation thermostat on the temperature control board;

[0031] A plurality of straight slots are arranged on the heat insulation board, each straight slot is equipped with a temperature control plate and a radiation temperature controller, and the switches are connected in series to form an array of a plurality of temperature control units;

[0032] When the temperature of the high-power load device rises above the threshold, the arc-shaped metal sheet of the radiation thermostat bends to a preset degree due to the heat, driving the trigger column to disconnect the corresponding switch, cutting off the power supply of the high-power load device;

[0033] When the temperature of the high-power load device drops, the arc-shaped metal sheet cools down and returns to its initial state, and the trigger column automatically returns to its initial position, closing the switch and restoring power to the high-power load device.

[0034] Optionally, the method further includes the following steps: collecting the disconnection times and position information of each radiation thermostat in real time through a data collection module in the intelligent control unit;

[0035] Use the location monitoring module to accurately determine the location of temperature changes based on the collected data, and identify areas with a higher risk of overheating through statistical analysis of the number of disconnections;

[0036] Use the historical data analysis module to store and analyze historical disconnection data, predict overheating trends through historical data analysis, and propose corresponding preventive measures;

[0037] According to the analysis of the fault diagnosis module, determine the cause of the temperature increase, provide fault diagnosis results, and recommend solutions;

[0038] When the early warning and alarm module of the intelligent control unit detects abnormal disconnection times or location information, it automatically triggers early warning and alarm, and sends a notification to the maintenance personnel;

[0039] Formulate maintenance plans and perform maintenance operations based on data and diagnostic results provided by the intelligent control unit;

[0040] The intelligent control unit adjusts the warning threshold and fault diagnosis algorithm based on the results of the maintenance operation and subsequent temperature change data.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] The present application provides a temperature protection device for high-power load equipment, which effectively solves the limitations of traditional contact temperature sensors in installation, response speed and durability through a non-contact temperature monitoring method. Specifically, the device in the present application adopts a radiation thermostat, which uses the sensitivity of the arc-shaped metal sheet (bimetallic strip) to thermal radiation to directly monitor the heat generated by the high-power load equipment, thereby realizing real-time monitoring of the equipment temperature. When the temperature of the equipment exceeds the preset threshold, the arc-shaped metal sheet bends due to the heat, quickly disconnects the switch, and cuts off the power supply of the equipment, thereby avoiding equipment damage and safety accidents caused by overheating. This non-contact temperature monitoring method not only improves the accuracy and response speed of monitoring, but also reduces maintenance costs and complexity, and improves the reliability and safety of the equipment.

[0043] The device of the present application forms an array of multiple temperature control units by setting multiple straight slots on the insulation board, each of which is equipped with a temperature control board and a radiation thermostat. This design allows each temperature control unit to independently monitor and manage the temperature of the corresponding area, improving the accuracy and flexibility of temperature monitoring. When the temperature of any area exceeds the threshold, the corresponding radiation thermostat quickly disconnects the power supply, thereby avoiding damage to the entire device due to local overheating and enhancing the safety and reliability of the device.

[0044] The device of the present application uses a curved metal sheet that is pressed and formed by stacking metal layers with different thermal expansion coefficients, and presets different temperature thresholds, so that the device can replace the corresponding radiation thermostat according to different high-power load equipment, thereby improving the applicability and flexibility of the device. The central area of ​​the curved metal sheet is preset as a weak area, ensuring that it bends first when the temperature rises and responds quickly to temperature changes. The anodizing treatment or coating of the black heat-absorbing material on the outer surface of the curved metal sheet enhances the absorption efficiency of thermal radiation and improves the monitoring sensitivity. The design of the switch is such that when the curved metal sheet cools and returns to its initial state, the trigger column automatically returns to the initial position, closing the switch and restoring the power supply of the high-power load equipment, thereby realizing the automatic reset function of the device.

[0045] The device of the present application further includes an intelligent control unit, which realizes intelligent monitoring and management of the temperature of high-power load equipment through a data collection module, a position monitoring module, a historical data analysis module, a fault diagnosis module and an early warning alarm module. This intelligent design not only improves the accuracy and response speed of temperature monitoring, but also provides a scientific basis for equipment maintenance and optimization through historical data analysis and fault diagnosis, greatly reducing the failure rate and maintenance cost of the equipment.

[0046] The method of the present invention can quickly cut off the power supply of a high-power load device when the temperature rises above a preset threshold, thereby preventing damage caused by overheating of the device. When the temperature of the device drops to a safe range, the device in the method can automatically reset and restore the power supply of the device, ensuring the continuous operation and production efficiency of the equipment. By providing a plurality of straight notches on the insulation board and assembling a temperature control unit, the method realizes the modularization of temperature monitoring and improves the flexibility and scalability of the system. The array design of multiple temperature control units allows for distributed protection of different parts of the device, improving the accuracy and reliability of the protection. Since the method can quickly cut off the power supply when overheating is detected and automatically restore the power supply after the temperature drops, the downtime caused by overheating protection is reduced.

[0047] The method of the present invention uses a data collection module of an intelligent control unit, and the method can collect and analyze the disconnection times and position information of each radiation thermostat in real time, thereby improving the intelligent level of monitoring. Using a position monitoring module, the method can accurately determine the location of temperature changes, quickly identify areas with higher overheating risks, and provide accurate guidance for maintenance and overhaul. The use of a historical data analysis module enables the method to predict overheating trends through historical data and propose preventive measures, thereby realizing predictive maintenance and reducing unexpected downtime. The method provides fault diagnosis results and solutions through a fault diagnosis module, thereby improving the efficiency and accuracy of fault handling. The early warning and alarm module of the intelligent control unit can automatically trigger early warnings and alarms when abnormal conditions are detected, and promptly notify maintenance personnel, thereby improving the ability to respond to emergencies. Based on the data and diagnostic results provided by the intelligent control unit, the method supports the formulation of scientific maintenance plans and the execution of maintenance operations, thereby improving the efficiency and effectiveness of maintenance work. The intelligent control unit can adjust the early warning threshold and the fault diagnosis algorithm according to the results of the maintenance operation and the subsequent temperature change data, thereby making the protection method adaptive and being able to optimize performance according to actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a three-dimensional structural schematic diagram of an example of the present invention;

[0049] Figure 2 It is a three-dimensional structural schematic diagram of a heat insulation board according to an embodiment of the present invention;

[0050] Figure 3 This is a three-dimensional structural schematic diagram of a temperature control board according to an embodiment of the present invention;

[0051] Figure 4 It is a three-dimensional structural schematic diagram of a radiation temperature controller according to an embodiment of the present invention;

[0052] Figure 5 This is a flowchart of an example of the present invention.

[0053] Among them: 1. heat insulation board; 11. square hole; 12. straight slot; 13. first circular hole; 2. temperature control board; 21. second circular hole; 22. third circular hole; 3. radiation temperature controller; 31. connector; 32. external contact; 33. switch; 34. arc-shaped metal sheet; 4. resistance belt; 5. mica scale strip. DETAILED DESCRIPTION

[0054] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0055] The following detailed description is an exemplary description, which is intended to provide further detailed description of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present application belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit exemplary embodiments according to the present invention.

[0056] like Figure 1 As shown, a temperature protection device for high-power load equipment is designed for high-power load equipment, and its main components include a heat insulation board 1, a resistance belt 4, a temperature control board 2 and a radiation thermostat 3. The function of the heat insulation board 1 is to isolate the heat generated by the load equipment, and through holes are provided at both ends of the heat insulation board 1. These through holes are used to fix and insert the resistance belt 4 to monitor the temperature of the load equipment. Straight slots 12 are opened on the heat insulation board 1. These straight slots 12 are used to install the temperature control board 2. The temperature control board 2 is fixed in the straight slots 12 and is tightly combined with the heat insulation board 1.

[0057] The temperature control board 2 is fixedly connected with a radiation thermostat 3, which is the core component of the device and includes a connector 31, a switch 33 and an arc-shaped metal sheet 34. The connector 31 fixes the radiation thermostat 3 on the temperature control board 2, and the switch 33 is arranged in the middle of the connector 31 to control the power on and off of the high-power load equipment. A trigger column is arranged in the center of the switch 33, and the arc-shaped metal sheet 34 is located above the switch 33, and the inner side of the arc-shaped recess is buckled with the trigger column. One end of the arc-shaped metal sheet 34 is fixedly connected to one side of the switch 33, and the other end is connected to the other side of the switch 33 through the external contact 32.

[0058] Under normal working conditions, the arc-shaped metal sheet 34 is in the initial position, the contacts are closed, and the high-power load device is powered on. When the load device generates excessive heat, the heat is transferred to the resistor belt 4 through the heat insulation board 1, thereby heating the arc-shaped metal sheet 34. Since the arc-shaped metal sheet 34 is formed by stacking and pressing at least two metal layers with different thermal expansion coefficients, at least one layer of metal has a higher thermal expansion coefficient than the other layers, it will bend when heated. When the temperature rises to a certain level, the arc-shaped metal sheet 34 bends to a preset degree, and the inner side of the arc-shaped recess exerts force on the trigger column, causing the trigger column to move, thereby disconnecting the movable contact from the output end, and the switch 33 is disconnected, cutting off the power supply of the high-power load device to achieve overheating protection.

[0059] The central area of ​​the arc-shaped metal sheet 34 is preset as a weak area to ensure that it bends first when the temperature rises and responds quickly to temperature changes. The outer surface of the arc-shaped metal sheet 34 is anodized or coated with a black heat-absorbing material to enhance the absorption efficiency of heat radiation and improve the sensitivity of temperature monitoring.

[0060] When the temperature of the high-power load device drops, the arc-shaped metal sheet 34 cools down and returns to its initial state, the trigger column automatically returns to its initial position, the movable contact re-contacts the output terminal, the switch 33 closes, and the power supply of the high-power load device is restored.

[0061] The specific implementation of the device provides an efficient and reliable high-power load equipment temperature protection solution, which ensures the safety and stability of the equipment through non-contact temperature monitoring and rapid response mechanism. The design of the device allows the replacement of the corresponding specification of the radiation thermostat 3 according to different high-power load equipment and different temperature protection requirements to adapt to different application scenarios.

[0062] As a preferred example, the device is specially designed with a plurality of straight slots 12 on the heat insulation board 1, which are arranged in an array, and each straight slot 12 is used to install a temperature control board 2. The temperature control board 2 is fixed in the straight slots 12 of the heat insulation board 1, forming a tight structure with the heat insulation board 1. On each temperature control board 2, a radiation thermostat 3 is fixedly connected. The radiation thermostat 3 includes a connector 31, a switch 33 and an arc-shaped metal sheet 34, wherein the connector 31 fixes the radiation thermostat 3 on the temperature control board 2, and the switch 33 is arranged in the middle of the connector 31, which is used to control the power on and off of the high-power load equipment.

[0063] The key feature of the device is the series connection of switches 33. The switches 33 of all radiation thermostats 3 are connected in series to form a continuous circuit. This design allows any radiation thermostat 3 to bend its arc-shaped metal sheet 34 due to heat when it detects an overheat condition, driving the trigger column to disconnect the corresponding switch 33, thereby cutting off the power supply of the entire high-power load device and achieving a rapid temperature protection response.

[0064] As a preferred example, the arc-shaped metal sheet 34 of the device is a composite material formed by stacking and pressing at least two metal layers with different thermal expansion coefficients. Specifically, at least one of the metal layers has a higher thermal expansion coefficient than the other layers. This design enables the arc-shaped metal sheet 34 to react sensitively to temperature changes. Under normal working conditions, the arc-shaped metal sheet 34 maintains its initial shape, so that the trigger column contacts the movable contact, thereby maintaining the closed state of the switch 33, allowing the high-power load device to be powered on.

[0065] When the high-power load device generates excessive heat, the arc-shaped metal sheet 34 will bend when heated due to the difference in thermal expansion coefficients of its different metal layers. The active layer with a higher expansion coefficient will expand faster than the passive layer with a lower expansion coefficient, causing the arc-shaped metal sheet 34 to bend toward the passive layer as a whole. This bending action causes the inner side of the arc-shaped depression of the arc-shaped metal sheet 34 to apply force to the trigger column, pushing the trigger column to move, thereby disconnecting the movable contact from the output end, causing the switch 33 to be disconnected, cutting off the power supply of the high-power load device, and achieving overheating protection.

[0066] In a specific implementation, the active layer of the arc-shaped metal sheet 34 can be made of nickel-chromium-iron alloy or nickel-manganese-iron alloy, and the passive layer can be made of nickel-iron alloy. The selection of these materials is based on their thermal expansion coefficient characteristics and reliability and durability in practical applications. By accurately controlling the thickness and proportion of these metal layers, the thermal response characteristics of the arc-shaped metal sheet 34 can be adjusted to adapt to different temperature protection requirements.

[0067] When the temperature of the high-power load device drops, the arc-shaped metal sheet 34 cools and returns to its initial state, and the trigger column automatically returns to its initial position, so that the movable contact re-contacts the output terminal, and the switch 33 is restored to the closed state, allowing the high-power load device to be reconnected to the power supply.

[0068] As a preferred example, in a specific implementation, the weak design of the central area of ​​the arc-shaped metal sheet 34 can be achieved in a variety of ways. For example, one or more locally thinned portions can be formed in the central area of ​​the arc-shaped metal sheet 34 by processes such as stamping, corrosion, or laser cutting. These thinned portions will first lose their original strength and rigidity when heated, causing the arc-shaped metal sheet 34 to bend first in this area. This design not only improves the response speed of the device, but also improves its sensitivity to temperature changes.

[0069] As a preferred example, the arc-shaped metal sheet 34 in the device is specially designed with an outer surface treatment to enhance the absorption efficiency of thermal radiation. Specifically, the outer surface of the arc-shaped metal sheet 34 is anodized or coated with a black heat-absorbing material. Anodizing is an electrochemical process that forms an oxide film on the metal surface, which not only enhances the corrosion resistance of the metal, but also absorbs more thermal radiation. In addition, the coated black heat-absorbing material is a specially selected high-absorption material that can efficiently absorb radiant heat energy in the solar spectrum.

[0070] In the implementation process, the outer surface of the curved metal sheet 34 is first cleaned and prepared for anodizing. After anodizing, a uniform oxide film is formed on the surface of the metal sheet, which not only improves the durability of the metal sheet, but also increases the absorption capacity of thermal radiation. Next, a suitable black heat-absorbing material, such as nano black chromium or other highly selective heat-absorbing materials, is selected and coated on the outer surface of the curved metal sheet 34. This material is selected for its high absorptivity and low reflectivity, which can effectively capture heat energy and transfer it to the curved metal sheet 34.

[0071] Through this double treatment, the arc-shaped metal sheet 34 can respond to temperature changes more quickly when heated. When the heat generated by the high-power load device increases, the arc-shaped metal sheet 34 quickly heats up due to its enhanced heat absorption capacity, causing the metal sheet to bend and the trigger column to move accordingly, thereby disconnecting the switch 33 and cutting off the power supply of the high-power load device to achieve overheat protection.

[0072] After the temperature drops, the arc-shaped metal sheet 34 cools and returns to its initial state, and the trigger column automatically returns to its initial position, closing the switch 33 and restoring the power supply to the high-power load device. This design not only improves the response speed of the device, but also improves its sensitivity and accuracy to temperature changes.

[0073] In summary, the device significantly improves the absorption efficiency of the arc-shaped metal sheet 34 to heat radiation through the dual effects of anodizing and coating with black heat-absorbing material, thereby improving the performance and reliability of the entire temperature protection device.

[0074] As a specific example, the switch 33 is designed to include a fixed base and at least one movable contact, and a trigger column is slidably arranged on the fixed base. The movable contact is elastic, one end of which is connected to the trigger column, and the other end is connected to the output end of the switch 33. This design enables the switch 33 to respond to the position change of the trigger column, thereby controlling the on and off of the circuit.

[0075] Under normal working conditions, the arc-shaped metal sheet 34 bimetallic strip, due to its initial state, makes the trigger column contact with the movable contact, keeps the switch 33 closed, allows current to pass, and thus the high-power load device is powered on. When the heat generated by the high-power load device causes the arc-shaped metal sheet 34 to heat up, the inner side of the arc-shaped concave exerts force on the trigger column, causing the trigger column to move, thereby disconnecting the movable contact from the output end, and the switch 33 is disconnected, cutting off the power supply of the high-power load device, and achieving overheat protection.

[0076] In a specific implementation, the material selection and design of the arc-shaped metal sheet 34 enable it to produce a predetermined bending behavior when heated. When the temperature rises, the weak area of ​​the arc-shaped metal sheet 34 bends first, and this design improves the response speed and sensitivity of the device. The movement of the trigger column directly causes the state of the movable contact to change, thereby quickly cutting off the power supply and protecting the device from overheating damage.

[0077] When the temperature of the high-power load device drops, the arc-shaped metal sheet 34 cools and returns to its initial state, and the trigger column automatically returns to its initial position, so that the movable contact re-contacts the output terminal, and the switch 33 is restored to the closed state, allowing the high-power load device to be reconnected to the power supply.

[0078] As a specific example, the device includes multiple groups of radiation thermostats 3, each group of radiation thermostats 3 is designed to respond to different temperature thresholds. This design allows the device to flexibly replace the radiation thermostats 3 with corresponding temperature settings according to the specific thermal protection requirements of the high-power load equipment. The device provides 3 groups of radiation thermostats, each of which includes an arc-shaped metal sheet 34, which corresponds to a specific temperature threshold according to its material properties and design. These metal sheets can be made of different materials or metal layers of different thicknesses to ensure that they bend at a predetermined temperature, thereby triggering the switch 33 to operate.

[0079] Each set of radiation thermostats 3 can be preset with different temperature thresholds according to the working characteristics and safety requirements of the high-power load equipment. For example, some equipment may need to disconnect the power supply when the temperature reaches 150°C, while other equipment may need to disconnect the power supply at 200°C. By replacing the radiation thermostats 3 with different temperature threshold settings, the device can adapt to these different needs.

[0080] The design of the radiation thermostat 3 allows for quick replacement to meet the temperature protection requirements of different high-power load devices. When replacing, simply install the radiation thermostat 3 with the corresponding temperature threshold onto the corresponding temperature control board 2 to achieve temperature protection for the device.

[0081] Since the device can replace the corresponding radiation thermostat 3 according to the type of high-power load, it has high adaptability. Whether in industrial motors, transformers or other large electrical equipment, effective temperature protection can be achieved by selecting a suitable radiation thermostat 3.

[0082] By configuring a dedicated radiation thermostat 3 for different temperature thresholds, the device can provide more accurate and reliable overheating protection, which reduces the risk of equipment damage and safety accidents caused by overheating and improves the safety and reliability of the equipment.

[0083] The device realizes customized temperature protection for high-power load equipment by providing multiple groups of radiation thermostats 3 corresponding to different temperature thresholds. This design not only improves the accuracy of protection, but also enhances the versatility and applicability of the device, making it widely applicable to the thermal protection needs of various high-power load equipment.

[0084] Example 2

[0085] like Figure 1-Figure 5 As shown, a temperature protection device for high-power load equipment includes: a heat insulation board 1, the heat insulation board 1 is fixedly connected to a temperature control board 2 and a resistance belt 4, the temperature control board 2 is fixedly connected to a radiation thermostat 3, the radiation thermostat 3 includes a connector 31, an external contact 32, a switch 33, and an arc-shaped metal sheet 34, and the resistance belt 4 is fixedly connected to a mica scale strip 5. The arc-shaped metal sheet 34 is a bimetallic sheet.

[0086] Square holes 11 are provided at both ends of the insulation board 1 as insertion holes for fixing the resistance belt 4. A straight slot 12 is provided at the center of the insulation board 1 for placing the radiation thermostat 3. Two first circular holes 13 are provided at both ends of the straight slot 12 for fixing and connecting the temperature control board 2.

[0087] Two second circular holes 21 are provided at both ends of the temperature control plate 2 to be fixedly connected to the heat insulation plate 1 ; two third circular holes 22 are provided at the center of the temperature control plate 2 to fit with the connecting piece 31 of the radiation thermostat 3 to be fixedly connected to the radiation thermostat 3 .

[0088] The mica scale strip 5 is provided with evenly arranged grooves corresponding to the bends of the resistance belt 4 one by one, and is used to fix the resistance belt 4.

[0089] This application is an electrical component for monitoring temperature, which controls the on and off of the circuit when the device exceeds the preset temperature value to avoid damage to the device, improve the performance of the device, and ensure the safety, stability and reliability of the device operation.

[0090] During use, the top of the radiation thermostat 3 uses an exposed bimetallic strip coated with black anodizing to directly monitor the temperature by absorbing the heat radiation generated by the heating resistor. Since the heat capacity of the bimetallic strip is very small, the hysteresis of the collected temperature is very low and does not rely on the medium to conduct the temperature. Compared with the existing over-temperature protection technology, the present invention directly monitors the temperature of the load resistor through space radiation, avoids the time delay caused by indirect temperature monitoring, and solves the problem of electrical insulation between the load resistor and the thermostat.

[0091] The radiation thermostat 3 monitors the real-time temperature of the load resistor. When the temperature of the load resistor is lower than the set value of the radiation thermostat 3, the thermostat is closed; when the temperature of the load resistor is higher than the set value of the radiation thermostat 3, the thermostat will quickly disconnect and transmit an electrical signal to the control circuit. The control circuit will trigger the sound and light alarm and cut off the load power supply in time, thereby protecting the high-power load equipment.

[0092] The top of the radiation thermostat 3 of the present invention uses an exposed bimetallic strip coated with black anodizing to directly monitor the temperature by absorbing the heat radiation generated by the heating resistor. Since the heat capacity of the bimetallic strip is very small, the hysteresis of the collected temperature is very low and does not rely on the medium to conduct the temperature. Compared with the existing over-temperature protection technology, the present invention directly monitors the temperature of the load resistor through space radiation, avoids the time delay caused by indirect temperature monitoring, and solves the problem of electrical insulation between the load resistor and the thermostat.

[0093] The present invention is provided with a radiation thermostat 3 to monitor the real-time temperature of the load resistor. When the temperature of the load resistor is lower than the set value of the radiation thermostat 3, the thermostat is closed; when the temperature of the load resistor is higher than the set value of the radiation thermostat 3, the thermostat will be quickly disconnected and transmit an electrical signal to the control circuit. The control circuit will trigger the sound and light alarm and cut off the load power supply in time, thereby protecting the high-power load equipment.

[0094] Example 3

[0095] The device includes an intelligent control unit that integrates multiple key modules to achieve efficient temperature protection for high-power load equipment.

[0096] Data collection module: responsible for collecting the disconnection times and position information of each radiation thermostat 3 in real time. By installing sensors on each radiation thermostat 3, this information is automatically recorded and transmitted to the intelligent control unit. The sensors can be temperature sensors or pressure sensors, which can detect changes in the thermostat state and convert them into electrical signals.

[0097] Wireless communication module: The data collection module transmits the collected data to the intelligent control unit in real time through the wireless communication module. This module can use existing wireless communication technologies, such as Wi-Fi, Bluetooth, ZigBee, etc., to achieve wireless transmission of data.

[0098] Location Monitoring Module: This module uses the information received from the Data Collection Module to pinpoint the location of temperature changes. By statistically analyzing the number of disconnects, the module is able to identify areas with a higher risk of overheating, providing a basis for further analysis and response.

[0099] Historical data analysis module: This module is responsible for storing and analyzing historical disconnection data. By analyzing historical data, this module can predict overheating trends and propose corresponding preventive measures, thereby improving the prediction accuracy and response efficiency of the system.

[0100] Fault diagnosis module: This module analyzes the cause of the temperature increase based on the collected data, provides fault diagnosis results, and recommends solutions. This module can use machine learning algorithms to automatically diagnose faults and propose solutions by learning historical data and current data.

[0101] When the warning and alarm module of the intelligent control unit detects abnormal disconnection times or location information, it will automatically trigger a warning and alarm and send a notification to the maintenance personnel. The module can integrate SMS, email or mobile application notification functions to ensure that maintenance personnel can receive alerts in time.

[0102] Through the above implementation, the intelligent control unit can achieve temperature protection for high-power load equipment and improve the safety and reliability of the equipment. The design of the unit enables it to adapt to different application scenarios and can be customized and expanded according to actual needs. By integrating advanced sensor technology, network communication technology and intelligent algorithms, the device can achieve automatic monitoring, regulation and control to meet the needs of modern industry for efficient temperature protection.

[0103] Example 4

[0104] A high-power load temperature protection method, the specific steps are as follows:

[0105] First, the heat insulation board 1 is installed and fixed on the high-power load device. If the high-power load device is equipped with the heat insulation board 1, no additional installation is required. The heat insulation board 1 is designed to isolate the heat generated by the load device. Through holes are provided at both ends of the heat insulation board 1. These through holes are used to fix the resistance belt 4. Specifically, the resistance belt 4 passes through the through holes at both ends of the heat insulation board 1 and is fixed on the outside to ensure that the resistance belt 4 is stably installed on the heat insulation board 1.

[0106] Next, the temperature control board 2 is fixed in the straight slot 12 opened on the insulation board 1. The temperature control board 2 is provided for installing the radiation thermostat 3. The design of the straight slot 12 can ensure that the temperature control board 2 is tightly combined with the insulation board 1, thereby ensuring the stability and structural integrity of the entire device.

[0107] According to the specific type and use conditions of the high-power load equipment, a radiation thermostat 3 with a corresponding temperature threshold is selected. The selection of the radiation thermostat 3 is based on the specific temperature range that it can withstand and respond to, so as to ensure that the power supply can be disconnected in time in the event of overheating to protect the load equipment from damage. The selected radiation thermostat 3 is installed on the temperature control board 2 and matches the straight slot 12 to ensure that the thermostat can accurately sense temperature changes.

[0108] A plurality of straight slots 12 are provided on the heat insulation board 1, and a temperature control board 2 and a radiation thermostat 3 are installed in each straight slot 12. The switches 33 are connected in series to form an array of multiple temperature control units. This design allows temperature monitoring of different parts of the load equipment, improving the comprehensiveness and reliability of temperature monitoring.

[0109] When the temperature of the high-power load device rises above a preset threshold, the arc-shaped metal sheet 34 in the radiation thermostat 3 will bend to a preset degree due to the heat. This bending action will drive the trigger column to disconnect the corresponding switch 33, thereby cutting off the power supply of the high-power load device to prevent the device from being damaged by overheating.

[0110] When the temperature of the high-power load device drops to a normal range and the arc-shaped metal sheet 34 cools down and returns to its initial state, the trigger column automatically returns to its initial position, closing the switch 33, thereby restoring the power supply to the high-power load device.

[0111] Through the above steps, the high-power load temperature protection method of the present invention can ensure that when the load device is overheated, the power supply can be cut off in time to avoid equipment damage and safety accidents. At the same time, when the temperature returns to the normal range, the power supply can be automatically restored to ensure the continuous and stable operation of the equipment. The method has high operability and practicality and can be widely used in temperature control protection of various high-power load devices.

[0112] As a preferred example, the following steps are further included to achieve intelligent temperature monitoring and protection:

[0113] The disconnection times and location information of each radiation thermostat 3 are collected in real time through the data collection module in the intelligent control unit. This step involves connecting each radiation thermostat 3 to the intelligent control unit so that it can monitor and record each time the thermostat disconnects due to temperature exceeding the threshold, and accurately mark the location where these events occur.

[0114] Using the location monitoring module, the location of the temperature change is precisely determined based on the collected data. Statistical analysis of the number of disconnections is used to identify areas with a higher risk of overheating. This step involves analyzing the collected data to determine which areas have thermostats that trigger disconnections more frequently, indicating potential overheating problem areas.

[0115] Use the historical data analysis module to store and analyze historical disconnection data. Predict overheating trends through historical data analysis and propose corresponding preventive measures. This step involves using past disconnection event data to identify the frequency and pattern of overheating in order to predict future periods of overheating and develop preventive measures accordingly.

[0116] Based on the analysis of the fault diagnosis module, the cause of the temperature increase is determined, the fault diagnosis results are provided, and solutions are recommended. This step involves using the algorithms and logic of the intelligent control unit to determine the specific cause of the overheating and propose solutions based on the diagnosis results.

[0117] When the early warning and alarm module of the intelligent control unit detects abnormal disconnection times or location information, it automatically triggers early warning and alarm, and sends a notification to maintenance personnel. This step ensures that when overheating occurs, relevant personnel can be notified in time and take necessary countermeasures.

[0118] Planning and executing maintenance actions based on data and diagnostics provided by the intelligent control unit. This step involves developing specific maintenance plans to address identified issues based on the analysis results from the intelligent control unit and executing those plans to prevent future overheating events.

[0119] The intelligent control unit adjusts the warning threshold and fault diagnosis algorithm based on the results of the maintenance operation and the subsequent temperature change data. This step ensures that the intelligent control unit can continuously optimize its performance based on the latest data and maintenance results, improving the accuracy and efficiency of the early warning system.

[0120] Through the above steps, the high-power load temperature protection method of the present invention can not only monitor and protect the high-power load equipment from overheating damage in real time, but also predict and prevent overheating events in advance through intelligent analysis and early warning systems, thereby greatly improving the safety and reliability of the equipment. In addition, the method can also continuously optimize itself according to actual conditions to ensure long-term efficient operation.

[0121] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A temperature protection device for a high-power load device, the high-power load device comprising a heat insulation board (1) for isolating heat generated by the load device and a resistance belt (4) arranged on one side of the heat insulation board (1), the heat insulation board (1) having through holes at both ends, the through holes serving as fixed insertion holes for the resistance belt (4), characterized in that: The heat insulation board (1) is provided with a straight slot (12); A temperature control plate (2) is arranged in a straight slot (12) provided in the heat insulation plate (1); A radiation temperature controller (3) fixedly connected to the temperature control plate (2); The radiation temperature controller (3) comprises a connecting piece (31) connected to the temperature control board (2), a switch (33) arranged in the middle of the connecting piece (31) for controlling the power on and off of the high-power load device, and an arc-shaped metal sheet (34) arranged above the switch (33); a trigger column is arranged at the center of the switch (33); the inner side of the arc-shaped recess of the arc-shaped metal sheet (34) is buckled on the trigger column; one end of the arc-shaped metal sheet (34) is fixedly connected to one side of the switch (33); and the other end of the arc-shaped metal sheet (34) is connected to the other side of the switch (33) through an external contact (32).

2. A high-power load equipment temperature protection device according to claim 1, characterized in that: The heat insulation board (1) is provided with a plurality of straight slots (12) in an array, each of the straight slots (12) being provided with a temperature control board (2) and a radiation temperature controller (3) fixed on the temperature control board (2), the switches (33) being connected in series, and when the arc-shaped metal sheet (34) is bent by the temperature, one of the triggering columns is driven to disconnect the corresponding switch (33), thereby cutting off the power supply of the high-power load equipment.

3. A high-power load equipment temperature protection device according to claim 1, characterized in that: The arc-shaped metal sheet (34) is formed by stacking and pressing at least two metal layers with different thermal expansion coefficients, wherein at least one metal layer has a higher thermal expansion coefficient than the other metal layers.

4. A high-power load equipment temperature protection device according to claim 1, characterized in that: The central area of ​​the arc-shaped metal sheet (34) is preliminarily a weak area, and the weak area bends first when the temperature rises.

5. A high-power load equipment temperature protection device according to claim 1, characterized in that: The outer surface of the arc-shaped metal sheet (34) is anodized or coated with a black heat-absorbing material to enhance the absorption efficiency of heat radiation.

6. A high-power load equipment temperature protection device according to claim 1, characterized in that: The switch (33) comprises a fixed base and at least one movable contact, and the trigger column is slidably arranged on the fixed base; The movable contact is elastic, one end of which is connected to the trigger column, and the other end of which is connected to the output end of the switch (33); When the arc-shaped metal sheet (34) is heated, the inner side of the arc-shaped recess exerts a force on the trigger column, causing the trigger column to move, thereby disconnecting the movable contact from the output end, and the switch (33) is disconnected; the output end of the switch (33) is connected to the power supply line of a high-power load device to control the power on and off of the device; When the arc-shaped metal sheet (34) cools and returns to its initial state, the trigger column automatically returns to its initial position, causing the movable contact to contact the output end again, thereby restoring the switch (33) to a closed state.

7. A high-power load equipment temperature protection device according to claim 1, characterized in that: There are multiple groups of the radiation thermostats (3), each corresponding to a different temperature threshold, and the radiation thermostats (3) of corresponding specifications are replaced according to the type of high-power load.

8. A high-power load equipment temperature protection device according to claim 1, characterized in that: It also includes an intelligent control unit, which includes: A data collection module, used to collect the disconnection times and position information of each of the radiation thermostats (3), and transmit the information to the intelligent control unit in real time via the wireless communication module; Position monitoring module, used to accurately determine the location of temperature changes and identify areas with higher risk of overheating through statistical analysis of disconnection times; Historical data analysis module, used to store and analyze historical disconnection data, predict overheating trends through historical data analysis, and propose corresponding preventive measures; Fault diagnosis module, used to analyze the cause of temperature rise based on the collected data, provide fault diagnosis results, and recommend solutions; Early warning and alarm module: When abnormal disconnection times or location information is detected, early warning and alarm are automatically triggered and notifications are sent to maintenance personnel.

9. A high-power load temperature protection method, based on a high-power load equipment temperature protection device according to any one of claims 1 to 8, characterized in that: The following steps are included: The heat insulation board (1) is installed on the high-power load device. Through holes are opened at both ends of the heat insulation board (1). The resistance belt (4) is passed through the through holes and fixed; The temperature control plate (2) is fixed in the straight slot (12) provided in the heat insulation plate (1); Selecting a radiation thermostat (3) with a corresponding temperature threshold according to the type of high-power load, and installing the selected radiation thermostat (3) on the temperature control board (2); A plurality of straight slots (12) are arranged on the heat insulation board (1), a temperature control plate (2) and a radiation temperature controller (3) are installed in each straight slot (12), and the switches (33) are connected in series to form an array of a plurality of temperature control units; When the temperature of the high-power load device rises above a threshold value, the arc-shaped metal sheet (34) of the radiation thermostat (3) is bent to a preset degree by the heat, driving the trigger column to disconnect the corresponding switch (33), thereby cutting off the power supply of the high-power load device; When the temperature of the high-power load device drops, the arc-shaped metal sheet (34) cools down and returns to its initial state, and the trigger column automatically returns to its initial position, closing the switch (33) and restoring the power supply of the high-power load device.

10. A high-power load temperature protection method according to claim 9, characterized in that: The method further comprises the following steps: collecting the disconnection times and position information of each radiation thermostat (3) in real time through a data collection module in the intelligent control unit; Use the location monitoring module to accurately determine the location of temperature changes based on the collected data, and identify areas with a higher risk of overheating through statistical analysis of the number of disconnections; Use the historical data analysis module to store and analyze historical disconnection data, predict overheating trends through historical data analysis, and propose corresponding preventive measures; According to the analysis of the fault diagnosis module, the cause of the temperature rise is determined, the fault diagnosis results are provided, and solutions are recommended; when the early warning and alarm module of the intelligent control unit detects abnormal disconnection times or location information, the early warning and alarm are automatically triggered, and a notification is sent to the maintenance personnel; Formulate maintenance plans and perform maintenance operations based on data and diagnostic results provided by the intelligent control unit; The intelligent control unit adjusts the warning threshold and fault diagnosis algorithm based on the results of the maintenance operation and subsequent temperature change data.

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