Energy storage cabinet control cabinet convenient for heat dissipation and control system thereof

Abstract

The invention relates to the technical field of energy storage cabinet control cabinets, and discloses an energy storage cabinet control cabinet convenient for heat dissipation and a control system thereof, and the energy storage cabinet control cabinet comprises a data collection module and a parameter setting module. The integrated sensor is used for collecting temperature parameters at four monitoring points in the control cabinet body; the data collection module is used for collecting the state of charge of the control cabinet, the energy conversion efficiency in the charging and discharging process and the voltage difference parameter between the capacitors. And the main control computer is used for analyzing and judging that the control cabinet adopts the cooling fan to dissipate heat inwards or outwards according to parameter information of the integrated sensor and the data collection module. The temperature distribution condition of the control cabinet is detected through four monitoring points at different positions in the control cabinet, and according to the temperature distribution condition and the pressure bearing degree of the control cabinet, the control cabinet is analyzed and judged to adopt the design that the cooling fan dissipates heat inwards or outwards; according to the heat dissipation control scheme, the problem of heat accumulation in the control cabinet can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage cabinet control cabinets, and particularly relates to an energy storage cabinet control cabinet convenient for heat dissipation and its control system. Background Art

[0002] The energy storage cabinet control cabinet is one of the core components in the energy storage system, and it is responsible for managing, monitoring, and protecting each part in the energy storage system. The functions of the control cabinet are very extensive, covering multiple aspects such as battery management, energy regulation, safety monitoring, and communication. However, after the energy storage cabinet control cabinet continuously works, its own electronic components will also have heat accumulation problems.

[0003] Electronic devices need to work properly under certain environmental conditions. In terms of temperature, the normal operating temperature range of electronic devices is generally -5 to +65 degrees Celsius. Beyond this range, the performance of electronic components will significantly decline, and they cannot work stably, thus affecting the stability and reliability of the system operation.

[0004] A prior patent discloses an electrical control system for a liquid-cooled energy storage box (CN221748820U), belonging to the technical field of liquid-cooled energy storage boxes; it includes an energy storage box body and a control cabinet. The control cabinet is located inside the energy storage box body. An explosion-proof emergency lighting lamp is provided at the top end inside the energy storage box body, and the explosion-proof emergency lighting lamp is used for internal lighting work in the energy storage box body in case of emergency. An LED explosion-proof fluorescent lamp is provided at the top end inside the energy storage box body. In the technology disclosed in this patent, it is easy to have the phenomenon of dust accumulation in the heat dissipation grid due to the single running direction of the internal cooling fan.

[0005] A prior patent discloses an immersion liquid-cooled server integrated with photovoltaic energy storage and a circulating heat dissipation system for a swimming pool in the technical field of server cooling (CN117042389A), including photovoltaic modules, energy storage modules, power grid modules, inverter modules, power control cabinets, containers, liquid-cooled cabinets, current-sharing plates, baffles, servers, heat exchangers, swimming pools, valves, pumps. In the technology disclosed in this patent, when the control cabinet is indoors in summer with air conditioning, cold air sinks and accumulates in the lower area of the control cabinet, while heat accumulates in the upper area inside the control cabinet. At this time, a heat dissipation fan can be used to dissipate heat outward. However, when it is in winter or rainy season, it is easy to have moisture accumulation in the lower area of the control cabinet. At this time, if the heat dissipation fan is used to dissipate heat outward again, it will accelerate the aging speed of the internal electronic components of the control cabinet. Summary of the Invention

[0006] The main technical problem to be solved by the present invention is to provide an energy storage cabinet control cabinet convenient for heat dissipation and its control system, which solves the problems in the above background art.

[0007] To solve the above technical problems, according to one aspect of the present invention, more specifically, it is a control cabinet for an energy storage cabinet that facilitates heat dissipation, including a control cabinet body, a trigger switch, a main control computer, an isolation power supply module, an air switch module, and an integrated sensor; the integrated sensor further includes four monitoring points arranged inside the control cabinet body; Radiating fans are provided on both the front and rear sides of the upper region of the control cabinet body, and radiating grilles are provided on both the front and rear sides of the lower region of the control cabinet body; The trigger switch is fixedly installed at the inner bottom end of the control cabinet body, and the main control computer and the isolation power supply module are installed side by side on the top of the trigger switch, and the air switch module is located between the radiating fans on the front and rear sides.

[0008] Furthermore, the main control computer further includes a feature extraction module and a data analysis module.

[0009] Furthermore, the feature extraction module is used to extract the parameter information of the temperature in the signals collected by the integrated sensor.

[0010] Furthermore, the data analysis module is used to determine whether to dissipate heat inward or outward by the radiating fan according to the temperatures monitored at the four monitoring points and the pressure-bearing degree of the control cabinet.

[0011] A control system for a control cabinet of an energy storage cabinet that facilitates heat dissipation includes a data collection module; The integrated sensor is used to collect the temperature parameters at four monitoring points inside the control cabinet body; The data collection module is used to collect the state of charge of the control cabinet, the energy conversion efficiency during the charging and discharging processes, and the voltage difference parameters between capacitors; The main control computer is used to analyze and determine whether to dissipate heat inward or outward by the radiating fan according to the parameter information of the integrated sensor and the data collection module.

[0012] Furthermore, the control system further includes a parameter setting module and a signal filtering module; The parameter setting module is used to configure and adjust the working parameters and operating power of the radiating fan; The signal filtering module is used to remove noise, interference, and unnecessary components from the original signals.

[0013] Furthermore, the main control computer determines whether to adjust the heat dissipation mode of the radiating fan according to the temperature distribution in the control cabinet and the pressure-bearing degree of the control cabinet, then there is:

[0014] In the formula, represents the comprehensive condition coefficient for adjusting the radiating fan, Indicates the deviation temperature in the area above the isolated power supply module in the control cabinet. Indicates the deviation temperature in the area below the isolated power supply module in the control cabinet. Indicates the pressure-bearing degree coefficient of the control cabinet.

[0015] Furthermore, the main control computer estimates the pressure-bearing degree of the control cabinet according to the internal resistance change amount of the control cabinet, the energy conversion efficiency, and the voltage difference parameter between capacitors. Then, there is:

[0016] In the formula, Indicates the pressure-bearing degree coefficient of the control cabinet. Indicates the internal resistance change amount of the control cabinet. Indicates the energy conversion efficiency during the charging and discharging processes of the energy storage cabinet. Indicates the voltage difference parameter between the same capacitors in the energy storage cabinet.

[0017] Furthermore, when it indicates that the cooling fan needs to be changed to dissipate heat outward. When it indicates that the current heat dissipation method of the cooling fan is maintained. When it indicates that the cooling fan needs to be changed to dissipate heat inward.

[0018] Furthermore, thermoelectric generators are installed in the heat dissipation channels of both the cooling fan and the heat dissipation grille, and the thermoelectric generators are used to assist in powering the monitoring points.

[0019] Furthermore, a humidity sensor is additionally installed outside the control cabinet body to monitor environmental parameters in real time, and the current seasonal characteristics are judged based on the matching degree of the monitoring parameters of the humidity sensor with historical data and real-time environmental parameters.

[0020] An energy storage cabinet control cabinet and its control system that are convenient for heat dissipation provided by the present invention, compared with the prior art, the effects obtained by this method are: 1. The present invention detects the temperature distribution of the control cabinet through four monitoring points at different positions in the control cabinet, and analyzes and judges the design of the cooling fan to dissipate heat inward or outward according to the temperature distribution and pressure-bearing degree of the control cabinet. This heat dissipation control scheme can effectively solve the problem of heat accumulation in the control cabinet.

[0021] 2. By adopting the heat dissipation scheme of the cooling fan blowing inwards or outwards, when the cooling fan blows inwards, it can blow away the dust accumulated at the lower heat dissipation grid, and when the cooling fan blows outwards, it can blow away the dust accumulated at the upper heat dissipation grid. In this way, it can effectively avoid the problem that the heat dissipation efficiency is reduced due to the single air duct direction of the heat dissipation grid, resulting in dust accumulation on one side.

[0022] 3. According to the deviation temperature in the upper area of the isolated power supply module in the control cabinet, the deviation temperature in the lower area of the isolated power supply module in the control cabinet, and the pressure-bearing degree of the control cabinet, the comprehensive condition coefficient for adjusting the cooling fan can be simply and conveniently calculated. And based on this comprehensive condition coefficient, it can be intuitively judged whether the cooling fan blows inwards or outwards.

[0023] 4. By installing thermoelectric power generation chips in the heat dissipation channels of both the cooling fan and the heat dissipation grid, the thermoelectric power generation chips adopt a "sandwich" structure in the air flow channel of the heat dissipation grid, and the power supply end of the thermoelectric power generation chip is connected to the monitoring point through a capacitor for auxiliary power supply to the monitoring point, thereby recovering the energy in the heat dissipation process by using the thermoelectric effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the front internal structure of the control cabinet of the energy storage cabinet in the present invention; Figure 2 is a schematic diagram of the back internal structure of the control cabinet of the energy storage cabinet in the present invention; Figure 3 is a side sectional view of the control cabinet of the energy storage cabinet in the present invention; Figure 4 is a schematic diagram of the control system in the present invention; Figure 5 is a schematic diagram of the position of the monitoring point in the present invention; Figure 6 In [the figure], a is a schematic diagram of the cooling fan blowing inwards, and b is a schematic diagram of the cooling fan blowing outwards; Figure 7 is the comprehensive condition coefficient w and the deviation temperature in the present invention and the model diagram of the pressure-bearing degree s.

[0025] In the figure: 1. Control cabinet body; 2. Trigger switch; 3. Main control computer; 4. Isolated power supply module; 5. Air switch module; 6. Cooling fan; 7. Integrated sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] To make the technical solution of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.

[0027] Embodiment 1 As Figure 1As shown in Fig. - 3, according to one aspect of the present invention, a control cabinet for an energy storage cabinet facilitating heat dissipation is provided, which is characterized by including a control cabinet body 1, a trigger switch 2, a main control computer 3, an isolation power module 4, an air switch module 5, a cooling fan 6, and an integrated sensor 7. The isolation power module 4 is used for isolating the power supply, performing switching operations, and connecting and disconnecting small current circuits. The working logic of the trigger switch 2 is as follows: 1) When a short circuit or severe overload occurs in the circuit, the armature of the overcurrent release is attracted, causing the free release mechanism to act, and the main contacts disconnect the main circuit.

[0028] 2) When the circuit is overloaded, the heating element of the thermal release heats up, causing the bimetallic strip to bend upwards, pushing the free release mechanism to act, and the main contacts disconnect the main circuit.

[0029] 3) When the circuit is under-voltage, the armature of the under-voltage release is released, also causing the free release mechanism to act, and the main contacts disconnect the main circuit.

[0030] 4) When the shunt release button is pressed, the armature of the shunt release is attracted, causing the free release mechanism to act, and the main contacts disconnect the main circuit.

[0031] Embodiment 2 As Figure 1-6 shown, a control system for a control cabinet of an energy storage cabinet facilitating heat dissipation includes a data collection module and a parameter setting module; the integrated sensor 7 is used to collect temperature parameters at four monitoring points inside the control cabinet body 1; the data collection module is used to collect the state of charge of the control cabinet, the energy conversion efficiency during charging and discharging, and the voltage difference parameters between capacitors; the main control computer 3 is used to analyze and judge whether the control cabinet uses the cooling fan 6 to dissipate heat inward or outward according to the parameter information of the integrated sensor 7 and the data collection module. The control system also includes a parameter setting module and a signal filtering module; the parameter setting module is used to configure and adjust the working parameters and operating power of the cooling fan 6; the signal filtering module is used to remove noise, interference, and unnecessary components from the original signal.

[0032] Among them, the parameter setting module is used to configure and adjust the working parameters (such as start-stop thresholds, speed gears) and operating power (such as high / medium / low gear power output) of the cooling fan, and supports dynamic adjustment of the heat dissipation strategy, for example, switching the heat dissipation direction (inward or outward) of the fan according to the real-time temperature or seasonal characteristics (judged by a humidity sensor).

[0033] The parameter setting module inputs preset parameters through the software interface of the main control computer or remote instructions, such as temperature thresholds (such as triggering high-speed heat dissipation at 65°C) and power gears (such as 50% power for low load).

[0034] The signal filtering module is used to remove invalid components such as noise and electromagnetic interference from the raw signals (such as temperature, voltage, humidity) collected by the integrated sensor, ensure data accuracy, and support the normalization processing of multi-source signals (such as the temperature differences at four monitoring points).

[0035] The signal filtering module processes real-time signals using digital filtering algorithms (such as Kalman filtering or low-pass filtering), combines hardware designs (such as shielded cables and ground protection) to reduce external interference, and smooths or eliminates abnormal data (such as sudden temperature jumps).

[0036] The main control computer 3 also includes a feature extraction module and a data analysis module. The feature extraction module is used to extract the parameter information of the temperature in the signals collected by the integrated sensor 7. The data analysis module is used to determine whether to analyze the heat dissipation of the control cabinet by the cooling fan 6 inward or outward according to the temperatures monitored at four monitoring points and the pressure-bearing degree of the control cabinet. Through the monitoring points at four different positions in the control cabinet, the temperature distribution of the control cabinet is detected, and according to the temperature distribution and pressure-bearing degree of the control cabinet, it is analyzed and judged whether the control cabinet uses the cooling fan 6 to dissipate heat inward or outward. This heat dissipation control scheme can effectively solve the problem of heat accumulation in the control cabinet.

[0037] Embodiment 3 Such as Figure 5 、 6 As shown in 7, the main control computer 3 determines whether to adjust the heat dissipation mode of the cooling fan 6 according to the temperature distribution in the control cabinet and the pressure-bearing degree of the control cabinet. Then there is:

[0038] In the formula, represents the comprehensive condition coefficient for adjusting the cooling fan 6, represents the deviation temperature in the area above the isolated power supply module 4 in the control cabinet, represents the deviation temperature in the area below the isolated power supply module 4 in the control cabinet, represents the pressure-bearing degree coefficient of the control cabinet.

[0039] The main control computer 3 estimates the pressure-bearing degree of the control cabinet according to the internal resistance change amount of the control cabinet, the energy conversion efficiency, and the voltage difference parameter between capacitors. Then there is:

[0040] In the formula, represents the pressure-bearing degree coefficient of the control cabinet, represents the internal resistance change amount of the control cabinet, represents the energy conversion efficiency during the charging and discharging processes of the energy storage cabinet, Indicates the voltage difference parameter between the same capacitors in the energy storage cabinet.

[0041] Among them, the bearing capacity coefficient of the control cabinet for any time is calculated. The change in the internal resistance of the control cabinet takes (Change in internal resistance = Initial capacitance, battery internal resistance ÷ Increase in capacitance, battery internal resistance × 100%). The energy conversion efficiency during the charging and discharging process of the energy storage cabinet takes (Energy conversion efficiency = Energy actually released by the capacitor or battery ÷ Energy actually input into the capacitor or battery × 100%). The voltage difference parameter between the same capacitors in the energy storage cabinet takes (Unit: V). Then there is:

[0042] It can be known from the above calculations that the bearing capacity coefficient of the control cabinet this time is . Among them, the larger the bearing capacity coefficient of the control cabinet, the greater the operating pressure borne by the control cabinet of the energy storage cabinet.

[0043] Moreover, when calculating the comprehensive condition coefficient for adjusting the cooling fan 6 this time. The deviation temperature in the area above the isolated power supply module 4 in the control cabinet takes , and the deviation temperature in the area below the isolated power supply module 4 in the control cabinet takes (Unit: °C) , , where represents the real-time temperature at monitoring point 1, represents the real-time temperature at monitoring point 2, represents the real-time temperature at monitoring point 3, represents the real-time temperature at monitoring point 4. Then there is:

[0044] It can be known from the above calculations that the comprehensive condition coefficient for adjusting the cooling fan 6 this time is , then it means that the cooling fan 6 needs to be changed to inward cooling.

[0045] Embodiment 4 As Figure 6 , 7 shown, when judging whether the control cabinet uses the cooling fan 6 inward or the control cabinet uses the cooling fan 6 outward for the heat dissipation mode, there is: Table 1 Partial implementation parameters and fan adjustment status It can be known from the data in Table 1 that when the sample data tends to infinity, there will be a dividing line for dividing whether to adjust the fan state by the comprehensive condition coefficient. That is, when When it is [a certain condition], it means that the cooling fan 6 needs to be changed to dissipate heat outward; when it is [another certain condition], it means to maintain the current heat dissipation method of the cooling fan 6; when it is [yet another certain condition], it means that the cooling fan 6 needs to be changed to dissipate heat inward.

[0046] Embodiment 5 As Figure 5 shown, thermoelectric generators are installed in the heat dissipation channels of both the cooling fan and the heat dissipation grille, and the thermoelectric generators are used to assist in powering the monitoring points.

[0047] In the airflow channel of the heat dissipation grille, a "sandwich" structure is adopted, and the structure is: outer grille - middle thermoelectric generator - inner heat dissipation fins. The power supply end of the thermoelectric generator is connected to the monitoring point through a capacitor for assisting in powering the monitoring point, thereby recovering the energy in the heat dissipation process by using the thermoelectric effect.

[0048] Embodiment 6 A humidity sensor is additionally installed outside the control cabinet 1 to monitor the environmental parameters in real time. Based on the matching degree between the monitored parameters of the humidity sensor and the historical data and the real-time environmental parameters, the current seasonal characteristics are judged. Through the output probability matching of the LSTM time series classification model, there are: Table 2 Matching Degree between Parameters of Some Embodiments and Historical Data From the data in Table 2 above, it can be shown that by only setting a humidity sensor in the cabinet, the current seasonal characteristics can be quickly judged. Through this seasonal characteristic, the adjustment of the heat dissipation method of the cabinet can be assisted.

[0049] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. An energy storage cabinet control cabinet that is easy to dissipate heat, characterized in that: It comprises a control cabinet (1), a trigger switch (2), a main control computer (3), an isolation power supply module (4), an air switch module (5), and an integrated sensor (7); the integrated sensor (7) comprises four monitoring points arranged inside the control cabinet (1); The front and rear sides of the upper area of ​​the control cabinet (1) are both provided with cooling fans (6), and the front and rear sides of the lower area of ​​the control cabinet (1) are both provided with cooling grilles; The trigger switch (2) is fixedly mounted at the bottom of the control cabinet (1), and the main control computer (3) and the isolation power supply module (4) are mounted in parallel on the top of the trigger switch (2), and the air switch module (5) is located between the cooling fans (6) on the front and rear sides.

2. The energy storage cabinet control cabinet for facilitating heat dissipation according to claim 1, characterized in that: The main control computer (3) also includes: a feature extraction module and a data analysis module; The feature extraction module is used to extract parameter information of temperature from the signal collected by the integrated sensor (7); The data analysis module is used to determine whether the control cabinet uses a cooling fan (6) to dissipate heat inwardly or outwardly based on the temperatures monitored at the four monitoring points and the pressure bearing level of the control cabinet.

3. A control system for a heat dissipation energy storage cabinet control cabinet, characterized in that: The control cabinet applied to any one of claims 1-2, wherein the control system comprises a data collection module; The data collection module is used to collect the state of charge of the control cabinet, the energy conversion efficiency during charging and discharging, and the voltage difference parameters between capacitors; The main control computer (3) is used to analyze and determine whether the control cabinet uses the cooling fan (6) to dissipate heat inwardly or outwardly according to parameter information of the integrated sensor (7) and the data collection module; The integrated sensor (7) is used to collect temperature parameters at four monitoring points in the control cabinet (1).

4. The control system of the heat dissipation energy storage cabinet control cabinet according to claim 3 is characterized in that: The control system also includes a parameter setting module and a signal filtering module; The parameter setting module is used to configure and adjust the working parameters and operating power of the cooling fan (6); The signal filtering module is used to remove noise, interference and unnecessary components from the original signal.

5. The control system of the heat dissipation energy storage cabinet control cabinet according to claim 3 is characterized in that: The main control computer (3) determines whether to adjust the heat dissipation mode of the heat dissipation fan (6) according to the temperature distribution in the control cabinet and the pressure bearing degree of the control cabinet. Then: ； In the formula, represents the comprehensive condition coefficient for adjusting the cooling fan (6), Indicates the deviation temperature of the area above the isolated power module (4) in the control cabinet, Indicates the deviation temperature of the area below the isolated power module (4) in the control cabinet, Indicates the pressure-bearing coefficient of the control cabinet; when , it indicates that the cooling fan (6) needs to be changed to dissipate heat outwards; when , it means that the current cooling mode of the cooling fan (6) is maintained; when , it indicates that the cooling fan (6) needs to be changed to dissipate heat inwards.

6. The control system of the energy storage cabinet control cabinet for heat dissipation according to claim 5 is characterized in that: The main control computer (3) estimates the pressure resistance of the control cabinet according to the change in the internal resistance of the control cabinet, the energy conversion efficiency, and the voltage difference parameter between the capacitors. Then: ； In the formula, Indicates the pressure-bearing coefficient of the control cabinet. Indicates the change in internal resistance of the control cabinet. Indicates the energy conversion efficiency during the charging and discharging process of the energy storage cabinet. It is a parameter that indicates the voltage difference between the same capacitors in the energy storage cabinet.

7. The control system of the energy storage cabinet control cabinet for heat dissipation according to claim 3 is characterized in that: Thermoelectric generating sheets are installed in the heat dissipation channels of the heat dissipation fan and the heat dissipation grid, and the thermoelectric generating sheets are used to provide auxiliary power supply to the monitoring point.

8. The control system of the heat dissipation energy storage cabinet control cabinet according to claim 3 is characterized in that: A humidity sensor is also provided outside the control cabinet (1) for real-time monitoring of environmental parameters, and the current season characteristics are judged based on the matching degree between the parameters monitored by the humidity sensor and historical data and real-time environmental parameters.

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