An intelligent power grid low-carbon power storage cabinet capable of preventing overheating

Abstract

The application discloses an anti-overheating intelligent power grid low-carbon electric power energy storage cabinet, and relates to the technical field of energy storage cabinet heat dissipation appliances, which comprises a box body; the application introduces multiple-dimensional influence factors such as an air medium vertical temperature drop coefficient, a device self-heating increment, an adjacent device thermal interference increment and a local airflow cooling capacity through a cooling determination unit, constructs an actual temperature calculation model corresponding to a layer placement point, breaks through the limitation of traditional direct measurement relying on a single-point sensor only, realizes high-precision dynamic inversion of the real working temperature of an energy storage device on an arbitrary layer placement board, constructs a comprehensive fault index, normalizes and fuses multiple heterogeneous parameters into a single quantitative index, realizes continuous quantitative evaluation of the health state of a cooling system, triggers an early warning signal at a fault precursor stage, avoids the defects that a single threshold determination is prone to missing reports and delayed reports, significantly improves the sensitivity and accuracy of fault prediction, effectively reduces the risk of unplanned shutdown, and prolongs the service life of the device.

Description

Technical Field

[0001] This invention relates to the field of heat dissipation equipment for energy storage cabinets, and in particular to a low-carbon power energy storage cabinet for smart grids that is protected against overheating. Background Technology

[0002] As the global energy structure transitions towards a low-carbon model, the large-scale development of smart grids, as the core carrier for new energy consumption and energy optimization, places higher demands on the reliability, safety, and low-carbon nature of power storage equipment. Power storage cabinets, as key equipment for energy storage and release in smart grids, are widely used in distributed photovoltaic, wind power-supported energy storage systems, grid peak shaving and valley filling, emergency power supply, and other scenarios. Their operational stability directly affects the power supply quality and safety efficiency of smart grids. However, existing power storage cabinets still face many technical bottlenecks in practical applications, especially in terms of temperature control and low-carbon energy saving, where their shortcomings are becoming increasingly prominent.

[0003] Low heat dissipation efficiency and insufficient temperature control precision: Traditional energy storage cabinets mostly use natural heat dissipation or a single forced air cooling structure. The heat dissipation method is passive and inefficient. When the battery modules and electronic control components inside the energy storage cabinet are running under high load for a long time, the large amount of heat generated is difficult to dissipate quickly, which can easily lead to local temperature accumulation. This will not only reduce the charging and discharging efficiency and cycle life of the energy storage equipment, but also cause thermal runaway in severe cases, resulting in safety accidents such as battery fire and explosion. At the same time, the existing heat dissipation devices lack intelligent control mechanisms and cannot dynamically adjust the heat dissipation power according to the real-time temperature inside the energy storage cabinet. Either the heat dissipation is excessive, resulting in energy waste, or the heat dissipation is insufficient and cannot meet the cooling requirements, making it difficult to maintain the constant temperature environment required for the optimal operation of the energy storage equipment (usually 15-35℃).

[0004] Therefore, the above-mentioned problems need to be addressed and improved. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an overheat-resistant smart grid low-carbon power storage cabinet.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an overheat-proof smart grid low-carbon power storage cabinet, comprising a cabinet, wherein a partition is installed inside the cabinet, the partition dividing the cabinet into a storage cavity and a cooling cavity, wherein a cooling mechanism for ensuring a constant temperature inside the cabinet is installed in the storage cavity and the cooling cavity, and a first inspection door and a second inspection door are respectively hinged to the front end of the storage cavity and the cooling cavity;

[0007] The enclosure contains a control module, which includes a cooling detection unit and a fault warning unit.

[0008] The cooling determination unit, combining the vertical temperature drop coefficient of the air medium, the vertical distance between the mounting plate and the sensor, the temperature increment of the equipment's own heating, the temperature increment of thermal interference from adjacent equipment, and the local airflow cooling amount, constructs the first... Actual temperature calculation model of energy storage device placement point on shelf. Based on the calculation With preset temperature threshold If a comparison is made, If so, it is determined that cooling operation is required;

[0009] The fault early warning unit monitors and identifies faults in real time the multi-dimensional operating parameters of the core components of the cooling mechanism, and constructs a comprehensive fault index. ,when Exceeding the preset threshold The system can detect early signs of a fault and trigger a fault warning signal.

[0010] Preferably, the data processing steps of the cooling determination unit are as follows:

[0011] H1: Based on engineering heat conduction and convection heat transfer theory, construct the first... Actual temperature calculation model of energy storage device placement point on shelf. , The temperature is monitored in real time by the temperature sensor on the top surface of enclosure 1. The coefficient of temperature drop in the vertical direction of the air medium. For the first The actual vertical distance between the shelf and the temperature sensor. The temperature increase due to the heat generated by the equipment itself. This refers to the temperature increase caused by the difference in thermal conductivity between adjacent devices or in a localized area. The amount of temperature reduction caused by local airflow;

[0012] H2: Based on calculations With preset temperature threshold If a comparison is made, If the system detects a problem, it will determine that a cooling operation is needed and generate control commands for the variable frequency chiller and cooling fan.

[0013] Preferably, the data processing steps of the fault early warning unit are as follows:

[0014] L1: Real-time acquisition of multi-dimensional operating parameters of the core components of the cooling mechanism, and fault diagnosis based on the acquired parameters;

[0015] L2: Overall Failure Index , For the first The weight of each monitoring parameter, For the first Real-time monitoring values ​​of each monitoring parameter The median value within the normal range; when When a fault is detected, a fault warning signal is triggered and sent to the control terminal or the work background.

[0016] Preferably, the cooling mechanism includes multiple storage plates equidistantly installed in the storage cavity and a temperature sensor installed on the top surface inside the box. A cooling box is installed at the bottom of the cooling cavity, a liquid level sensor is installed inside the cooling box, and a first water pump is connected to the rear end of the cooling box.

[0017] Preferably, the upper end of the first water pump is connected to a variable frequency chiller, the front end of the variable frequency chiller is equipped with a control terminal, and the upper end of the variable frequency chiller is connected to a second water pump.

[0018] Preferably, the multiple storage panels are equipped with interconnected cooling pipes, one end of which is connected to a second water pump, and the other end of which is connected to a cooling tank.

[0019] Preferably, the lower end of the first inspection door and one side of the box are provided with multiple heat dissipation holes, and the box is a double-layer structure with a sandwich layer, and a heat insulation layer is installed in the sandwich layer.

[0020] Preferably, a fixing frame is installed on the inner side of the first inspection door, and two sets of cooling fans and two drive motors for driving the cooling fans to rotate are installed on the fixing frame.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. By combining temperature sensors with control terminals, the temperature inside the storage chamber is monitored in real time and the operating power of the variable frequency chiller is intelligently adjusted, which facilitates precise control of the cooling effect, improves the efficiency of temperature regulation, and enables the maintenance of a constant temperature environment. This ultimately solves the problem of uncontrollable heat dissipation efficiency and temperature of traditional energy storage cabinets.

[0023] 2. By introducing multi-dimensional influencing factors such as the vertical temperature drop coefficient of the air medium, the increase in self-heating of the equipment, the increase in thermal interference of adjacent equipment, and the local airflow cooling amount through the cooling judgment unit, a real temperature calculation model for the corresponding number of layers is constructed. This breaks through the limitations of traditional methods that rely solely on direct measurement by single-point sensors, and achieves high-precision dynamic inversion of the actual operating temperature of energy storage equipment on any layer of the shelf. At the same time, the model has strong physical interpretability and engineering adaptability, and can effectively sense the temperature distribution changes caused by factors such as differences in equipment layout, uneven heat conduction, and changes in local airflow. This significantly improves the spatial resolution and real-time performance of temperature monitoring, providing a reliable decision-making basis for the precise coordinated control of the variable frequency chiller and the cooling fan, and ultimately achieving the forward-looking maintenance and active thermal management of the constant temperature environment inside the energy storage cabinet.

[0024] 3. The fault early warning unit performs real-time monitoring of multi-dimensional operating parameters of core cooling components such as water pumps, variable frequency chillers, and compressors. It sets multiple fine-grained fault discrimination thresholds, including overload, jamming, idling, pipe blockage, overheating, decreased cooling efficiency, abnormal compressor current, and evaporator overheating, forming a diagnostic rule base covering multiple fault modes such as electrical, mechanical, and thermal faults. It innovatively constructs a comprehensive fault index, normalizing and integrating multiple heterogeneous parameters into a single quantitative indicator, enabling continuous quantitative assessment of the cooling system's health status and triggering early warning signals at the pre-fault stage. This avoids the shortcomings of single-threshold judgments, which are prone to missed or delayed reporting, significantly improving the sensitivity and accuracy of fault prediction, effectively reducing the risk of unplanned downtime, extending equipment lifespan, and ensuring the long-term stable operation of the energy storage cabinet under complex operating conditions. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0026] Figure 1 This is a schematic diagram of the overall appearance of the device proposed in this invention;

[0027] Figure 2 This is a top view of the overall cross-sectional structure of the device proposed in this invention;

[0028] Figure 3 This is a schematic diagram of the insulation board structure proposed in this invention;

[0029] Figure 4 This is a schematic diagram of the internal structure of the device proposed in this invention;

[0030] Figure 5 This is a schematic diagram of the box structure proposed in this invention;

[0031] Figure 6 This is a schematic diagram of the first inspection door structure proposed in this invention;

[0032] Figure 7 This is a flowchart of the system proposed in this invention.

[0033] The numbers in the diagram are as follows: 1. Enclosure; 2. First inspection door; 3. Second inspection door; 4. Insulation layer; 5. Partition; 6. Shelf; 7. Temperature sensor; 8. Variable frequency chiller; 9. Cooling tank; 10. First water pump; 11. Second water pump; 12. Cooling pipe; 13. Control terminal; 14. Heat dissipation hole; 15. Fixing frame; 16. Cooling fan; 17. Drive motor. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Example 1: See Figures 1 to 6 This invention discloses an overheat-resistant smart grid low-carbon power storage cabinet, comprising a housing 1. A partition 5 is installed inside the housing 1 to separate the energy storage device from the electrical components in the cooling mechanism, preventing the heat emitted by both from accumulating and causing overheating of the energy storage box. The partition 5 divides the interior of the housing 1 into a storage chamber and a cooling chamber. Cooling mechanisms are installed in both chambers to maintain a constant temperature inside the housing 1. These mechanisms automatically adjust the temperature of the coolant based on the internal temperature of the housing 1, preventing overheating of the energy storage device due to excessive heat and underheating due to excessively low temperatures, thus ensuring the energy storage device remains at a constant temperature. This design maximizes the energy storage efficiency of the energy storage device. The storage chamber and cooling chamber are respectively hinged with a first inspection door 2 and a second inspection door 3, facilitating maintenance and repair of the electrical components inside the enclosure 1. The cooling mechanism includes multiple storage plates 6 equidistantly installed in the storage chamber and a temperature sensor 7 installed on the top surface inside the enclosure 1. The storage plates 6 are made of a fast heat-conducting material, achieving cooling by accelerating the removal of heat from the energy storage device. The temperature sensor 7 facilitates coordination with the variable frequency chiller 8, allowing for appropriate adjustments to the temperature of the cooling pipe 12 based on the internal temperature of the enclosure 1. A cooling chamber is installed at the bottom. Cooling tank 9 is used to store some coolant, preventing coolant loss during circulation and cooling, which could lead to insufficient coolant over time. It also incorporates an internal level sensor. When the coolant level is low, the sensor transmits a signal to the control terminal 13, which then sends an alarm to the backend to remind maintenance personnel to add coolant. Cooling tank 9 is equipped with a level sensor and is connected to a first water pump 10 at its rear. The first water pump 10 pumps the coolant from cooling tank 9 to the variable frequency chiller 8. The variable frequency chiller 8 uses temperature feedback from temperature sensor 7 to... The system adjusts the coolant temperature. A variable frequency chiller 8 is connected to the upper end of the first water pump 10. A control terminal 13 is installed at the front end of the variable frequency chiller 8, which is connected to all electrical appliances. A second water pump 11 is also connected to the upper end of the variable frequency chiller 8, allowing the treated coolant to be pumped to the cooling pipe 12. Multiple storage plates 6 have interconnected cooling pipes 12 installed inside. The cooling pipes 12 are in direct contact with the storage plates 6, which have extremely high thermal conductivity, allowing for rapid absorption of the energy storage unit's temperature. One end of the cooling pipe 12 is connected to the second water pump 11, and the other end is connected to the cooling tank 9.

[0036] In this invention, multiple heat dissipation holes 14 are provided through the lower end of the first inspection door 2 and one side of the box body 1. The two sets of heat dissipation holes 14 facilitate the tiered discharge of temperature from the two chambers, thereby improving the heat dissipation speed. The box body 1 is a double-layer structure with a sandwich layer. An insulation layer 4 made of foam is installed inside the sandwich layer to separate the internal and external temperatures of the box body 1, so that the external temperature does not affect the internal temperature of the box body 1. A fixing frame 15 is installed on the inner side of the first inspection door 2. Two sets of cooling fans 16 and two drive motors 17 that drive the cooling fans 16 to rotate are installed on the fixing frame 15.

[0037] Working Principle: When using this invention, the operator first places the energy storage device on the storage plate 6 inside the storage cavity, closes the first inspection door 2 and the second inspection door 3. After the energy storage cabinet starts operating, the temperature sensor 7 on the top surface inside the cabinet 1 monitors the temperature inside the storage cavity in real time and transmits the temperature data to the control terminal 13. The control terminal 13 analyzes the data according to the preset temperature threshold. If the temperature inside the storage cavity rises to the set upper limit, the control terminal 13 immediately starts the cooling mechanism. At this time, the first water pump 10 starts working, which... The coolant in the cooling tank 9 is extracted and transported to the variable frequency chiller 8. The variable frequency chiller 8 precisely cools the coolant based on real-time temperature information from the temperature sensor 7, bringing it to a temperature suitable for the current environment. Then, the second water pump 11 pumps the cooled coolant into the interconnected cooling pipes 12 inside the storage plate 6. Because the storage plate 6 uses a high-conductivity material and is in direct contact with the cooling pipes 12, it can quickly absorb the heat generated by the energy storage device and carry it away through the coolant in the cooling pipes 12. The coolant then flows back to the cooling tank 9, forming a highly efficient circulating cooling system. At the same time, the control terminal 13 will also start the drive motor 17 on the fixing bracket 15 inside the first inspection door 2, driving the two sets of cooling fans 16 to rotate, accelerating the airflow in the storage cavity. In conjunction with the multiple heat dissipation holes 14 opened at the lower end of the first inspection door 2 and on one side of the tank body 1, the hot air in the storage cavity is discharged out of the tank in time, further enhancing the heat dissipation effect. The double-layer sandwich structure adopted by the tank body 1 and the foam insulation layer 4 installed inside can effectively block the temperature exchange between the inside and outside of the tank, avoiding the interference of the external ambient temperature on the constant temperature state inside the tank body 1. When the liquid level sensor in the cooling tank 9 detects that the coolant is insufficient, it will immediately send a signal to the control terminal 13. The control terminal 13 will then send an alarm message to the work background to remind the maintenance personnel to add coolant in time to ensure the continuous and stable operation of the cooling system. Through the synergistic effect of the above-mentioned multiple cooling measures, the internal temperature of the tank body 1 can always be maintained within the constant temperature range suitable for the operation of the energy storage device, avoiding overload damage to the energy storage device due to excessive temperature.

[0038] Example 2: See Figure 7The control module is installed inside the housing 1, and the control module is equipped with a cooling determination unit and a fault early warning unit.

[0039] The cooling determination unit, combining the vertical temperature drop coefficient of the air medium, the vertical distance between the mounting plate and the sensor, the temperature increment of the equipment's own heating, the temperature increment of thermal interference from adjacent equipment, and the local airflow cooling amount, constructs the first... Actual temperature calculation model of energy storage device placement point on shelf. Based on the calculation With preset temperature threshold If a comparison is made, If so, it is determined that cooling operation is required;

[0040] The fault early warning unit monitors and identifies faults in real time the multi-dimensional operating parameters of the core components of the cooling mechanism, and constructs a comprehensive fault index. ,when Exceeding the preset threshold The system detects early signs of a fault and triggers a fault warning signal.

[0041] The acquired temperature data is preprocessed, and the preprocessed data is recorded as valid data.

[0042] Preprocessing: The collected data is sorted according to the collection time, and corresponding items collected at the same time are processed. averaging the data and standard deviation The calculation, and the mean obtained from the calculation. and standard deviation Collect data fluctuation range for corresponding items The system is configured to compare the collected data for a given item with its fluctuation range, mark data outside the fluctuation range as outliers, and record the number of outliers. ,like If the collected data is abnormal, the data will be re-tested; if If outliers are removed, the mean of the remaining corresponding test data after outlier removal is calculated. The calculation, and the mean obtained from the calculation. As the corresponding data detected at the corresponding time;

[0043] No. Actual temperature at the placement point of the layered energy storage device , The temperature is monitored in real time by the temperature sensor on the top surface of enclosure 1. The coefficient of temperature drop in the vertical direction of the air medium. For the first The actual vertical distance between the shelf and the temperature sensor. The temperature increase due to the heat generated by the equipment itself. This refers to the temperature increment caused by the difference in thermal conductivity between adjacent devices / local areas. The amount of temperature reduction caused by local airflow;

[0044] In an unloaded, constant-temperature environment, place the device on shelf 6 and record the initial temperature. Start the equipment at its rated power and run it until the temperature stabilizes. Then record the surface temperature of the equipment. ,but ;

[0045] A single device was placed and its stable temperature was measured. Arrange them on the same shelf 6 according to their actual density. For the first device The temperature increment generated by adjacent devices on the target device , The thermal interference coefficient is... For the first Stable temperature of adjacent equipment, For individual devices and the first The distance between adjacent devices; when there is When two adjacent devices are used, the total temperature change of the target device In the normal contact area of ​​shelf 6, the stable temperature of the equipment was measured. In the abnormal area of ​​shelf 6, the same device was placed and the stable temperature was measured. Then, due to localized poor thermal conductivity ;

[0046] Using an anemometer, the local airflow velocity at different speeds of the cooling fan was measured at the equipment placement location. In a windless environment, the measured stable temperature of the equipment Turn the fan to a certain speed and wait for the temperature to stabilize before measuring the actual temperature of the equipment. The corresponding flow rate Temperature drop ;

[0047] Based on engineering heat conduction and convection heat transfer theories, and combined with the simplified operating conditions of the energy storage cabinet's small space and steady-state thermal environment, the temperature drop coefficient of the air medium in the vertical direction is... , It is the basic temperature drop constant (a fixed value calibrated experimentally). This is the cabinet airtightness correction factor. The density of the air inside the cavity. The specific heat capacity of air at constant pressure. The thermal conductivity of shelf 6 is given. This is the airflow velocity correction factor. The air velocity inside the cavity;

[0048] Based on the actual temperature of the placement point To determine the temperature of energy storage devices in real time, if If so, it is determined that a cooling operation should be performed. This is the preset temperature threshold.

[0049] Operating current of the water pump Rated current Rotation speed Rated speed Inlet and outlet pressure difference Rated differential pressure Pump body temperature and temperature threshold To acquire, when When the pump is overloaded, it is determined that the pump has an overload fault; when At that time, it was determined that the water pump had a jamming fault; when When the water pump is running dry, it is determined that there is a problem; when the pipeline flow rate is... At that time, it was determined that the water pump had a pipeline blockage fault. For rated flow rate; when At that time, it was determined that the water pump had an overheating fault;

[0050] Calculate the cooling efficiency of a variable frequency chiller ,when When the compressor current decreases, it is determined that the cooling efficiency has decreased; when the compressor current decreases... or evaporator temperature At that time, it was determined that the compressor was faulty. This is the compressor's rated current. This refers to the evaporator temperature threshold.

[0051] In summary, the comprehensive failure index , For the first The weight of each monitoring parameter, For the first Real-time monitoring values ​​of each monitoring parameter The median value within the normal range; when When a fault is detected, a fault warning is triggered.

[0052] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A low-carbon power storage cabinet for smart grids with overheat protection, comprising a housing (1), characterized in that: The box (1) is equipped with a partition (5), which divides the inside of the box (1) into a storage chamber and a cooling chamber. The storage chamber and the cooling chamber are equipped with cooling mechanisms to ensure a constant temperature inside the box (1). The front ends of the storage chamber and the cooling chamber are respectively hinged with a first inspection door (2) and a second inspection door (3). The enclosure (1) is equipped with a control module, which includes a cooling judgment unit and a fault early warning unit. The cooling determination unit, combining the vertical temperature drop coefficient of the air medium, the vertical distance between the mounting plate and the sensor, the temperature increment of the equipment's own heating, the temperature increment of thermal interference from adjacent equipment, and the local airflow cooling amount, constructs the first... Actual temperature calculation model of energy storage device placement point on shelf. Based on the calculation With preset temperature threshold If a comparison is made, If so, it is determined that cooling operation is required; The fault early warning unit monitors and identifies faults in real time the multi-dimensional operating parameters of the core components of the cooling mechanism, and constructs a comprehensive fault index. ,when Exceeding the preset threshold The system can detect early signs of a fault and trigger a fault warning signal.

2. The overheat-resistant smart grid low-carbon power storage cabinet according to claim 1, characterized in that: The data processing steps of the cooling determination unit are as follows: H1: Based on engineering heat conduction and convection heat transfer theory, construct the first... Actual temperature calculation model of energy storage device placement point on shelf. , The temperature is monitored in real time by the temperature sensor on the top surface of enclosure 1. The coefficient of temperature drop in the vertical direction of the air medium. For the first The actual vertical distance between the shelf and the temperature sensor. The temperature increase due to the heat generated by the equipment itself. This refers to the temperature increase caused by the difference in thermal conductivity between adjacent devices or in a localized area. The amount of temperature reduction caused by local airflow; H2: Based on calculations With preset temperature threshold If a comparison is made, If the system detects a problem, it will determine that a cooling operation is needed and generate control commands for the variable frequency chiller and cooling fan.

3. The overheat-resistant smart grid low-carbon power storage cabinet according to claim 1, characterized in that: The data processing steps of the fault early warning unit are as follows: L1: Real-time acquisition of multi-dimensional operating parameters of the core components of the cooling mechanism, and fault diagnosis based on the acquired parameters; L2: Overall Failure Index , For the first The weight of each monitoring parameter, For the first Real-time monitoring values ​​of each monitoring parameter The median value within the normal range; when When a fault is detected, a fault warning signal is triggered and sent to the control terminal or the work background.

4. The overheat-resistant smart grid low-carbon power storage cabinet according to claim 1, characterized in that: The cooling mechanism includes multiple storage plates (6) installed at equal intervals in the storage cavity and a temperature sensor (7) installed on the top surface inside the box (1). A cooling box (9) is installed at the bottom of the cooling cavity. A liquid level sensor is installed inside the cooling box (9), and a first water pump (10) is connected to the rear end of the cooling box (9).

5. The overheat-resistant smart grid low-carbon power storage cabinet according to claim 4, characterized in that: The first water pump (10) is connected to a variable frequency chiller (8) at its upper end. A control terminal (13) is installed at the front end of the variable frequency chiller (8), and a second water pump (11) is connected to the upper end of the variable frequency chiller (8).

6. The overheat-resistant smart grid low-carbon power storage cabinet according to claim 5, characterized in that: Multiple storage panels (6) are equipped with interconnected cooling pipes (12). One end of the cooling pipe (12) is connected to the second water pump (11), and the other end of the cooling pipe (12) is connected to the cooling box (9).

7. The overheat-resistant smart grid low-carbon power storage cabinet according to claim 1, characterized in that: The first inspection door (2) has multiple heat dissipation holes (14) through it at the lower end and on one side of the box (1). The box (1) is a double-layer structure with a sandwich layer, and a heat insulation layer (4) is installed in the sandwich layer.

8. The overheat-resistant smart grid low-carbon power storage cabinet according to claim 1, characterized in that: The first inspection door (2) has a fixed frame (15) installed on its inner side. The fixed frame (15) is equipped with two sets of cooling fans (16) and two drive motors (17) that drive the cooling fans (16) to rotate.

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