An explosion-proof and automatically cooling low-voltage power supply device

Abstract

This invention provides an explosion-proof and automatically cooling low-voltage power supply device, belonging to the field of power supply equipment technology. It includes mechanical and electrical components. The mechanical component includes a power supply main body, while the electrical component includes a multi-functional power analysis module, a data acquisition module, a matrix converter, an isolation transformer, an intelligent power switch module, and an energy storage power supply module, all housed within the power supply main body. The power supply main body has a dividing vertical plate that separates its interior into a first installation area and a second installation area. When the temperature rises, a thermistor triggers the power supply to operate. The power supply supplies power to a cooling fan for heat dissipation and simultaneously opens an explosion-proof valve. This design effectively prevents the risk of explosion due to excessive temperature and, in the event of an explosion, inhibits its propagation. An explosion-proof heat dissipation component is installed in the second installation area to facilitate overall heat dissipation.

Description

Technical Field

[0001] This invention belongs to the field of power supply equipment technology, specifically an explosion-proof and automatically cooling low-voltage power supply device. Background Technology

[0002] Low-voltage power supply equipment is widely used in modern industry, commerce, and certain special environments (such as places where flammable gases or dust are present).

[0003] Low-voltage power supply equipment refers to devices in a power system that convert electrical energy from high-voltage power sources to low-voltage electrical energy and distribute it to various electrical devices. These devices typically include transformers, distribution cabinets, distribution boxes, switchgear, protective electrical appliances, measuring instruments, etc. Low-voltage power supply equipment is widely used in buildings, factories, substations, and other places to provide a stable and reliable power supply for electrical equipment.

[0004] However, existing low-voltage power supply equipment has many problems. On the one hand, in terms of explosion-proof performance, many power supply equipment lacks effective explosion-proof design. In environments where flammable and explosive substances may be present, electrical sparks generated by internal electrical component failures or component deflagration due to overheating can easily lead to explosions. Once an explosion occurs, due to the lack of effective containment structures, the explosion will spread rapidly, damaging not only the equipment itself but also posing a serious threat to the surrounding environment and personnel safety. On the other hand, heat dissipation issues also restrict the performance and safety of low-voltage power supply equipment. With the increase in power supply equipment power and the high integration of internal electrical components, the equipment generates a large amount of heat during operation. Traditional heat dissipation methods for power supply equipment are often relatively simple, such as relying solely on natural heat dissipation or simple fan cooling, which is inefficient. This not only leads to excessively high internal temperatures, affecting the performance and lifespan of electrical components, but also high temperatures may cause a series of safety hazards.

[0005] Therefore, there is an urgent need for a low-voltage power supply device that is explosion-proof and can automatically cool down. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides an explosion-proof and automatically cooling low-voltage power supply device.

[0007] The technical solution of the present invention is: an explosion-proof and automatically cooling low-voltage power supply device, comprising a mechanical part and an electrical part. The mechanical part includes a power supply body, and the electrical part includes a multi-functional power analysis module, a data acquisition module, a matrix converter, an isolation transformer, an intelligent power switch module, and an energy storage power supply module disposed within the power supply body. The power supply body is provided with a dividing vertical plate that divides its interior into a first installation area and a second installation area.

[0008] The multi-functional power analysis module, data acquisition module, matrix converter, and intelligent power switch module are centrally installed in the first installation area, while the isolation transformer and the energy storage power supply module are located in the second installation area.

[0009] Each of the second installation areas is equipped with an explosion-proof heat dissipation assembly. The explosion-proof heat dissipation assembly includes a heat sink located in the second installation area for placing the energy storage power supply module, a heat dissipation vent located in the first installation area, the partition plate, and the side wall of the second installation area, a heat dissipation fan located at the corresponding heat dissipation vent in the second installation area, a thermistor located on the inner wall of the second installation area, a power supply connected to the thermistor via a power line, and an explosion-proof valve connected to the power supply via a power line. The power supply is connected to the heat dissipation fan via a power line.

[0010] The heat dissipation vents located in the first installation area, the partition vertical plate, and the second installation area are distributed vertically at intervals.

[0011] Furthermore, both the first and second installation areas have hinged cabinet doors on their side walls, and the cabinet doors are equipped with transparent observation windows.

[0012] Explanation: The cabinet doors protect the interior of the first and second installation areas, preventing external dust, moisture, corrosive gases, etc., from entering the power supply unit and protecting the internal electrical components from damage. They also prevent personnel from accidentally touching the internal live parts, improving operational safety. A transparent observation window is installed on the cabinet door for easy and intuitive observation of the working status inside the power supply unit.

[0013] Furthermore, the outer shell of the power supply unit adopts a double-layer structure, with the outer layer being a high-strength metal material and the inner layer being a fireproof and explosion-proof material.

[0014] Note: The double-layered shell provides dual protection. The outer layer, made of high-strength metal, can withstand external mechanical impacts and physical damage, while the inner layer, made of fireproof and explosion-proof composite material, can effectively prevent the spread of flames and explosions in the event of an internal malfunction, protecting the surrounding environment and personnel safety.

[0015] Furthermore, a partition plate is provided in the second installation area. The isolation transformer is installed in the second installation area and located at the upper end of the partition plate. The energy storage power supply module is installed in the second installation area and located at the lower end of the partition plate. The partition plate includes an outer frame, multiple horizontal rotating shafts distributed parallel to each other in the outer frame, and multiple first heat dissipation fins corresponding to the horizontal rotating shafts and sleeved on its outer wall.

[0016] Explanation: The second installation area is divided into upper and lower parts by a partition plate, allowing for separate installation of the isolation transformer and the energy storage power supply module. This avoids electrical interference between the two components, preventing potential safety hazards. Furthermore, since the partition plate is fixedly connected to the inner wall of the second installation area, and several parallel heat dissipation fins are installed within the frame, the isolation transformer and energy storage power supply module can dissipate heat through the gaps between adjacent fins. This allows heat to exchange and dissipate between the upper and lower sections, preventing heat accumulation due to the partition. This results in a more uniform temperature throughout the second installation area, avoiding localized overheating and reducing the risk of explosion due to a sudden increase in internal battery pressure caused by localized overheating.

[0017] Furthermore, each of the first heat dissipation fins has a plurality of micro heat dissipation slots and a plurality of micro heat dissipation protrusions uniformly distributed on its outer wall. The plurality of micro heat dissipation slots and the plurality of micro heat dissipation protrusions are mixed and distributed, and the micro heat dissipation slots and the micro heat dissipation protrusions are all coated with a heat dissipation coating.

[0018] Note: The heat dissipation coating is a graphene heat dissipation coating. Graphene has extremely high thermal conductivity, which can quickly conduct heat away from the heat dissipation fins and enhance the heat dissipation effect. When the first heat dissipation fin is in use, the surface of the first heat dissipation fin is uniformly decorated with micro heat dissipation grooves and micro heat dissipation protrusions, which can increase the surface area of ​​the first heat dissipation fin, allowing heat to be dissipated into the surrounding environment more quickly, enhancing air flow, improving heat dissipation uniformity, and optimizing the heat dissipation structure.

[0019] Furthermore, the energy storage power supply module includes a battery pack, a charge-discharge protection system connected to the battery pack and used to protect the charging and discharging safety of the battery pack, an intelligent charge-discharge control system connected to the battery pack and used to control the charging and discharging rate of the battery pack, and a power monitoring system connected to the battery pack and used to monitor the remaining power of the battery pack. The charge-discharge protection system, the intelligent charge-discharge control system, and the power monitoring system are located in the first installation area.

[0020] Description: External devices are powered by a battery pack. The charging and discharging protection system protects the charging and discharging safety of the battery pack. The intelligent charging and discharging control system flexibly adjusts the charging and discharging rate of the battery pack according to actual needs, optimizes its performance, and ensures its service life. The remaining power of the battery pack is monitored by a power monitoring system to facilitate reasonable power usage planning.

[0021] Furthermore, the battery pack is composed of multiple batteries, and the heat sink is assembled from multiple heat sink sub-frames corresponding to each battery. Each heat sink sub-frame has a heat-conducting frame at its center. Multiple second heat sink fins are provided between the outer wall of the heat-conducting frame and the inner wall of the corresponding heat sink sub-frame, and the second heat sink fins are distributed in a divergent manner. An electric cooling fin is attached to the inner wall of the heat sink sub-frame, and the battery is installed inside the heat-conducting frame.

[0022] Explanation: Since the battery pack is located at the lower end of the partition plate, to avoid localized overheating caused by direct contact between the bottom of the battery pack and the bottom of the second mounting area, a heat-conducting frame within the heat dissipation sub-frame connects the batteries one-to-one. This allows the bottom of the batteries to be suspended, facilitating airflow at the bottom of the batteries, carrying away heat, and improving heat dissipation efficiency. Because the heat-conducting frame is made of thermally conductive material, it can conduct the heat generated by the batteries during operation to each of the second heat dissipation fins. The heat is also dissipated through the gaps between adjacent second heat dissipation fins, making the temperature in the entire second mounting area more uniform, avoiding localized overheating, and improving heat dissipation efficiency.

[0023] Furthermore, the bottom of the second installation area is provided with a barrier support frame, which includes a lower support plate, a support vertical rod disposed on the upper end of the lower support plate and located between two adjacent heat dissipation sub-frames, and a support strip disposed on the upper end of the support vertical rod and located at the joint of two adjacent heat dissipation sub-frames.

[0024] Note: Since the bottom of the battery is suspended, in order to improve the installation reliability of the heat sink, a support vertical rod is provided at the upper end of the lower support plate installed at the bottom of the second installation area, located between two adjacent heat sink sub-frames. A support strip is provided at the upper end of each support vertical rod to support the joint between the two adjacent heat sink sub-frames. This improves the installation reliability of the heat sink. The stable installation can ensure that the heat sink can continuously and effectively dissipate heat from the battery, improve the heat dissipation efficiency of the entire system, and avoid battery performance degradation or safety hazards caused by heat dissipation problems.

[0025] Furthermore, the surface of the heat sink is coated with an explosion-proof material layer.

[0026] Note: The surface of the heat sink is coated with an explosion-proof material layer, which can prevent the spread of explosions inside the equipment, and has a certain auxiliary effect on heat dissipation, thus improving the overall safety of the equipment.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] The explosion-proof and automatically cooling low-voltage power supply equipment of this invention features a multi-functional power analysis module, data acquisition module, matrix converter, and intelligent power switch module centrally installed in the first installation area, while the isolation transformer and energy storage power supply module are located in the second installation area. The isolation transformer and energy storage power supply module are separated in the second installation area by a partition plate, preventing electrical interference and potential safety hazards. When the temperature rises, a thermistor triggers the power supply unit to operate. The power supply unit powers a cooling fan for heat dissipation and simultaneously opens the explosion-proof valve. This design effectively prevents explosions caused by excessive temperature and also prevents the propagation of an explosion in the event of one. The main body of the power supply unit has a double-layer structure: the outer layer is made of high-strength metal to resist external mechanical impact and physical damage, while the inner layer is made of fire-resistant and explosion-proof material. In the event of an internal fault, this effectively prevents the spread of flames and explosions, protecting the surrounding environment and personnel safety.

[0029] An explosion-proof heat dissipation assembly, including a heat sink, heat vents, and cooling fans, is installed in the second installation area. The heat vents are distributed vertically in the first installation area, the partition vertical plate, and the second installation area, which is conducive to the overall heat dissipation. Multiple first heat dissipation fins are installed on the partition horizontal plate. The first heat dissipation fins are equipped with micro-heat dissipation grooves and micro-heat dissipation protrusions and are coated with a heat dissipation coating. This makes the heat exchange and dissipation in the area where the isolation transformer and energy storage power supply module are located more uniform and avoids local overheating. The battery pack in the energy storage power supply module dissipates heat through a heat dissipation sub-frame, a heat conduction frame, and second heat dissipation fins. The inner wall of the heat dissipation sub-frame is attached with an electric cooling fin, and the design of the heat sink allows the bottom of the battery to be suspended, which facilitates airflow to remove heat. These designs make the temperature in the entire second installation area more uniform and improve the heat dissipation efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall internal structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the overall external structure of the present invention;

[0032] Figure 3 This is a top view of the isolation transformer of the present invention mounted on the partition plate;

[0033] Figure 4 This is a schematic diagram of the structure of the first heat dissipation fin of the present invention;

[0034] Figure 5 This is a top view of the heat sink of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the heat dissipation subframe of the present invention;

[0036] Figure 7This is a schematic diagram of the installation structure of the barrier support frame and heat sink of the present invention.

[0037] Among them, 1-Power supply main body, 10-First installation area, 11-Second installation area, 110-Divider horizontal plate, 111-Installation outer frame, 112-Horizontal rotation shaft, 113-First heat dissipation fin, 1130-Miniature heat dissipation slot, 1131-Miniature heat dissipation protrusion, 12-Divider vertical plate, 13-Explosion-proof heat dissipation component, 130-Heat dissipation base, 131-Heat dissipation port, 132-Heat dissipation fan, 133-Thermistor, 134-Power supply, 135-Explosion-proof valve, 136-Heat dissipation sub-frame, 137-Heat conduction frame, 13... 8-Second heat dissipation fin, 139-Electric cooling plate, 14-Cabinet door, 140-Transparent observation window, 15-Barrier support frame, 150-Lower support plate, 151-Supporting vertical rod, 152-Supporting bar, 2-Multi-functional power analysis module, 3-Data acquisition module, 4-Matrix converter, 5-Isolation transformer, 6-Intelligent power switch module, 7-Energy storage power supply module, 70-Battery pack, 700-Battery, 71-Charging and discharging protection system, 72-Intelligent charging and discharging control system, 73-Power monitoring system. Detailed Implementation

[0038] To further understand the content of the present invention, the present invention will be described in detail below through embodiments.

[0039] Example 1: As Figure 1 , 2 As shown, an explosion-proof and automatically cooling low-voltage power supply device includes a mechanical part and an electrical part. The mechanical part includes a power supply body 1, and the electrical part includes a multi-functional power analysis module 2, a data acquisition module 3, a matrix converter 4, an isolation transformer 5, an intelligent power switch module 6, and an energy storage power supply module 7, all housed within the power supply body 1. The power supply body 1 is provided with a dividing vertical plate 12 that divides its interior into a first installation area 10 and a second installation area 11. The multi-functional power analysis module 2, the data acquisition module 3, the matrix converter 4, the isolation transformer 5, and the intelligent power switch module 6 all adopt existing technologies. For example, the multi-functional power analysis module 2 can be a multi-functional power analysis module of model EDA9111A, the data acquisition module 3 can be an ABB CI627A 3BSE017457R1 data acquisition module, the matrix converter 4 can be a DVI matrix switcher, the isolation transformer 5 can be a Satons-STS-SG series isolation transformer, and the intelligent power switch module 6 can be a CR Micro CS5755MTO intelligent power switch module.

[0040] The multi-functional power analysis module 2, data acquisition module 3, matrix converter 4, and intelligent power switch module 6 are centrally installed in the first installation area 10, while the isolation transformer 5 and energy storage power supply module 7 are located in the second installation area 11.

[0041] Each of the second installation areas 11 is equipped with an explosion-proof heat dissipation assembly 13. The explosion-proof heat dissipation assembly 13 includes a heat sink 130 located in the second installation area 11 for placing the energy storage power supply module 7, a heat dissipation vent 131 located in the first installation area 10, the partition plate 12, and the side wall of the second installation area 11, a heat dissipation fan 132 located at the corresponding heat dissipation vent 131 in the second installation area 11, a thermistor 133 located on the inner wall of the second installation area 11, a power supply 134 connected to the thermistor 133 via a power line, and a power supply 134 connected to the thermistor 133 via a power line. The explosion-proof valve 135 is connected to the power supply 134. The power supply 134 is connected to the cooling fan 132 through the power supply line. The cooling fan 132, thermistor 133, power supply 134 and explosion-proof valve 135 all adopt existing technologies. For example, the cooling fan 132 can be a cooling fan of model S12038-8K, the thermistor 133 can be an MF58 series thermistor, and the explosion-proof valve 135 can be an explosion-proof valve of model WDYFA06-AB3-G24 / L15-Z104.

[0042] The heat dissipation vents 131 located in the first installation area 10, the partition vertical plate 12, and the second installation area 11 are distributed vertically at intervals.

[0043] Both the first installation area 10 and the second installation area 11 are hinged to cabinet doors 14. Each cabinet door 14 has a transparent observation window 140. The cabinet doors 14 protect the interior of the first installation area 10 and the second installation area 11, preventing external dust, moisture, corrosive gases, etc. from entering the power supply unit 1 and protecting the internal electrical components from damage. They also prevent personnel from accidentally touching the internal live parts, thus improving operational safety. The transparent observation window 140 on the cabinet door 14 allows for convenient and intuitive observation of the working status inside the power supply unit 1.

[0044] The outer shell of the power supply unit 1 adopts a double-layer structure. The outer layer is made of high-strength metal material, such as nickel-based alloy, steel, aluminum alloy, etc., and the inner layer is made of fireproof and explosion-proof material, such as fireproof rock wool. The double-layer structure can provide double protection. The high-strength metal material outer layer can resist external mechanical impact and physical damage, while the fireproof and explosion-proof composite material inner layer can effectively prevent the spread of flames and explosions in the event of an internal failure, thus protecting the surrounding environment and personnel safety.

[0045] The energy storage power supply module 7 includes a battery pack 70, a charge / discharge protection system 71 connected to the battery pack 70 and used to protect the charging and discharging safety of the battery pack 70, an intelligent charge / discharge control system 72 connected to the battery pack 70 and used to control the charging and discharging rate of the battery pack 70, and a power monitoring system 73 connected to the battery pack 70 and used to monitor the remaining power of the battery pack 70. The charge / discharge protection system 71, the intelligent charge / discharge control system 72, and the power monitoring system 73 are located in the first installation area 10. The battery pack 70 supplies power to external devices, and the charge / discharge protection system 71 protects the battery pack 70 during charging and discharging. For electrical safety, the intelligent charging and discharging control system 72 flexibly adjusts the charging and discharging rate of the battery pack 70 according to actual needs, optimizes its performance, and ensures its service life. The remaining power of the battery pack 70 is monitored by the power monitoring system 73 to make reasonable arrangements for power consumption. The charging and discharging protection system 71, the intelligent charging and discharging control system 72, and the power monitoring system 73 all adopt existing technologies. For example, the charging and discharging protection system 71 can use a charging and discharging protector of model MAX1665S / V / X, the intelligent charging and discharging control system 72 can use an STM32 core controller, and the power monitoring system 73 can use an XJ261C 450V / 5A power monitoring meter.

[0046] like Figure 5 , 6 As shown, the battery pack 70 consists of nine batteries 700. The heat sink 130 is composed of nine heat sink sub-frames 136, each corresponding to a battery 700. Each heat sink sub-frame 136 has a heat-conducting frame 137 at its center. Fifty second heat sink fins 138 are arranged between the outer wall of the heat-conducting frame 137 and the inner wall of the corresponding heat sink sub-frame 136, and these second heat sink fins 138 are distributed in a radiating pattern. An electric cooling fin 139 is attached to the inner wall of the heat sink sub-frame 136. The batteries 700 are installed inside the heat-conducting frame 137. Since the battery pack 70 is located below the partition plate 110, to avoid direct contact between the bottom of the battery pack 70 and the bottom of the second mounting area 11, which could lead to localized damage... To prevent overheating, the battery 700 is connected to the heat-conducting frame 137 within the heat dissipation sub-frame 136, allowing the bottom of the battery 700 to be suspended, which facilitates airflow at the bottom of the battery, carrying away heat and improving heat dissipation efficiency. Since the heat-conducting frame 137 is made of a thermally conductive material, the heat generated by the battery 700 during operation can be conducted to each of the second heat dissipation fins 138, and the gaps between adjacent second heat dissipation fins 138 can be connected for heat dissipation, making the temperature in the entire second mounting area 11 more uniform, avoiding local overheating and improving heat dissipation efficiency. The battery 700 adopts existing technology, such as a lead-acid battery.

[0047] The surface of the heat sink 130 is coated with an explosion-proof material layer, which can prevent the spread of explosion inside the equipment, and has a certain auxiliary effect on heat dissipation, thereby improving the overall safety of the equipment. The explosion-proof material layer can be made of polyolefin polymer materials, such as polyethylene or polypropylene.

[0048] Example 2: This example describes the method of using an explosion-proof and automatically cooling low-voltage power supply device as described in Example 1, including the following steps:

[0049] S1. First, the matrix converter 4 converts the input external electrical energy. According to the requirements of different components inside the equipment for electrical parameters such as voltage and frequency, the input electrical energy is adjusted to a suitable form. The isolation transformer 5 plays the role of electrical isolation to prevent electrical interference from propagating inside the equipment, while ensuring that the electrical energy is safely transmitted to the subsequent components. The intelligent power switch module 6 controls the power supply to the energy storage power supply module 7 and the multi-functional power analysis module 2, data acquisition module 3 and matrix converter 4 in the first installation area 10 according to the operating requirements of the equipment, such as changes in load.

[0050] S2. Under normal power supply, the intelligent charging and discharging control system 72 controls the charging process of the battery pack 70 according to the status of the battery pack 70 and the external power supply. The charging and discharging protection system 71 monitors and protects the charging and discharging safety of the battery pack 70 at all times to prevent overcharging, over-discharging and other situations. The power monitoring system 73 monitors the remaining power of the battery pack 70 in real time so as to make reasonable arrangements for power consumption plans.

[0051] S3. When power is needed to power external devices, the battery pack 70 outputs the stored electrical energy or the converted electrical energy directly input from the outside to the external devices through its own output circuit. During this process, the intelligent charging and discharging control system 72 adjusts the discharge rate of the battery pack 70 according to the power demand of the external devices to ensure stable power supply while optimizing the performance of the battery pack 70.

[0052] S4. When the external power supply fails, the power monitoring system 73 detects the power status of the battery pack 70. If the battery pack 70 has sufficient power, the intelligent charging and discharging control system 72 will quickly switch the power supply mode, and the battery pack 70 will provide power support to the internal multi-functional power analysis module 2, data acquisition module 3, matrix converter 4, isolation transformer 5, intelligent power switch module 6 and externally connected equipment.

[0053] During operation, the heat generated by the S5, multi-functional power analysis module 2, data acquisition module 3, matrix converter 4, isolation transformer 5, intelligent power switch module 6, and energy storage power supply module 7 will be dissipated into the first installation area 10 and the second installation area 11. Since the installation positions of the heat dissipation vents 131 on the first installation area 10, the partition vertical plate 12, and the second installation area 11 are distributed vertically, the heat can flow in the first installation area 10 and the second installation area 11. At this time, the temperature in the second installation area 11 is detected by the thermistor 133. When the preset value is reached, the heat is extracted from the first installation area 10 and the second installation area 11 by the cooling fan 132. At the same time, cold air from outside flows in through the heat dissipation vents 131 on the side wall of the first installation area 10 for heat dissipation. When the internal pressure of the power supply main body 1 exceeds the set value, the explosion-proof valve 135 will automatically open to release the internal pressure, thereby protecting the safety of the equipment and personnel.

[0054] Example 3: This example differs from Example 1 in that:

[0055] like Figure 3 As shown, a partition plate 110 is provided in the second installation area 11. The isolation transformer 5 is installed in the second installation area 11 and located at the upper end of the partition plate 110. The energy storage power supply module 7 is installed in the second installation area 11 and located at the lower end of the partition plate 110. The partition plate 110 includes an outer frame 111, multiple horizontal rotating shafts 112 parallel to each other within the outer frame 111, and multiple first heat dissipation fins 113 corresponding to the horizontal rotating shafts 112 and fitted onto its outer wall. The partition plate 110 divides the second installation area 11 into upper and lower parts, allowing the isolation transformer 5 and the energy storage power supply module 7 to be installed separately, thus avoiding electrical interference between the two and preventing potential safety hazards. Furthermore, since the partition plate 110 is fixedly connected to the inner wall of the second installation area 11 when in use, and several first heat dissipation fins 113 are arranged in parallel within the partition plate 111, the isolation transformer 5 and the energy storage power supply module 7 can dissipate heat through the gap between two adjacent first heat dissipation fins 113, even though they are installed separately. Heat can be exchanged and dissipated between the upper and lower parts where the isolation transformer 5 and the energy storage power supply module 7 are located, and heat will not accumulate due to the partition. This makes the temperature in the entire second installation area 11 more uniform, avoids local overheating, and reduces the risk of explosion caused by a sudden increase in internal battery pressure due to local overheating.

[0056] like Figure 4As shown, each first heat dissipation fin 113 has a plurality of micro heat dissipation grooves 1130 and 20 micro heat dissipation protrusions 1131 uniformly arranged on its outer wall. The 50 micro heat dissipation grooves 1130 and the plurality of micro heat dissipation protrusions 1131 are mixed and distributed. The micro heat dissipation grooves 1130 and the micro heat dissipation protrusions 1131 are all coated with a heat dissipation coating. The heat dissipation coating is a graphene heat dissipation coating. Graphene has extremely high thermal conductivity and can quickly conduct heat away from the heat dissipation fins, thereby enhancing the heat dissipation effect. When the first heat dissipation fin 113 is in use, the surface area of ​​the first heat dissipation fin 113 is increased due to the uniform arrangement of micro heat dissipation grooves 1130 and micro heat dissipation protrusions 1131 on its surface. This allows heat to be dissipated into the surrounding environment more quickly, enhances airflow, improves heat dissipation uniformity, and optimizes the heat dissipation structure.

[0057] like Figure 7 As shown, a barrier support frame 15 is provided at the bottom of the second installation area 11. The barrier support frame 15 includes a lower support plate 150, a support vertical rod 151 located on the upper end of the lower support plate 150 and between two adjacent heat dissipation sub-frames 136, and a support strip 152 located on the upper end of the support vertical rod 151 and at the joint of the two adjacent heat dissipation sub-frames 136. Since the bottom of the battery 700 is suspended, in order to improve the installation reliability of the heat dissipation base 130, a support vertical rod 151 located between two adjacent heat dissipation sub-frames 136 is provided on the upper end of the lower support plate 150 installed at the bottom of the second installation area 11, and a support strip 152 for supporting the joint of the two adjacent heat dissipation sub-frames 136 is provided on the upper end of each support vertical rod 151. This improves the installation reliability of the heat dissipation base 130. The stable installation can ensure that the heat dissipation base 130 can continuously and effectively dissipate heat from the battery 700, improve the heat dissipation efficiency of the entire system, and avoid the performance degradation of the battery 700 or the occurrence of safety hazards due to heat dissipation problems.

[0058] Example 4: This example differs from Example 2 in that:

[0059] In step S5, when the partition plate 110 is in use, the mounting frame 111 is fixedly connected to the inner wall of the second mounting area 11. At the same time, several first heat dissipation fins 113 are arranged in parallel within the mounting frame 111, so that the isolation transformer 5 and the energy storage power supply module 7 can dissipate heat through the gap between two adjacent first heat dissipation fins 113, on the basis of separate installation. Heat can be exchanged and dissipated between the upper and lower parts where the isolation transformer 5 and the energy storage power supply module 7 are located. When the first heat dissipation fins 113 are in use, the surface of the first heat dissipation fins 113 is uniformly provided with micro heat dissipation grooves 1130 and micro heat dissipation protrusions 1131, which can increase the surface area of ​​the first heat dissipation fins 113, so that heat can be dissipated to the surrounding environment more quickly.

Claims

1. An explosion-proof and automatically cooling low-voltage power supply device, comprising a mechanical part and an electrical part, wherein the mechanical part includes a power supply body (1), and the electrical part includes a multi-functional power analysis module (2), a data acquisition module (3), a matrix converter (4), an isolation transformer (5), an intelligent power switch module (6), and an energy storage power supply module (7) disposed within the power supply body (1), characterized in that, The power supply unit (1) is provided with a dividing vertical plate (12) that divides its interior into a first installation area (10) and a second installation area (11); The multifunctional power analysis module (2), data acquisition module (3), matrix converter (4) and intelligent power switch module (6) are centrally installed in the first installation area (10), and the isolation transformer (5) and the energy storage power supply module (7) are located in the second installation area (11). Each of the second installation areas (11) is equipped with an explosion-proof heat dissipation assembly (13). The explosion-proof heat dissipation assembly (13) includes a heat sink (130) located in the second installation area (11) and used to place the energy storage power supply module (7), a heat dissipation port (131) located in the first installation area (10), the partition vertical plate (12) and the side wall of the second installation area (11), a heat dissipation fan (132) located at the corresponding heat dissipation port (131) in the second installation area (11), a thermistor (133) located on the inner wall of the second installation area (11), a power supply (134) connected to the thermistor (133) through a power line, and an explosion-proof valve (135) connected to the power supply (134) through a power line. The power supply (134) is connected to the heat dissipation fan (132) through a power line. The heat dissipation vents (131) located in the first installation area (10), the partition vertical plate (12), and the second installation area (11) are installed at intervals between the top and bottom.

2. The explosion-proof and automatically cooling low-voltage power supply equipment according to claim 1, characterized in that, Both the first installation area (10) and the second installation area (11) have cabinet doors (14) hinged to their side walls, and the cabinet doors (14) are provided with transparent observation windows (140).

3. The explosion-proof and automatically cooling low-voltage power supply equipment according to claim 1, characterized in that, The outer shell of the power supply unit (1) adopts a double-layer structure, with the outer layer being a high-strength metal material and the inner layer being a fireproof and explosion-proof material.

4. The explosion-proof and automatically cooling low-voltage power supply equipment according to claim 1, characterized in that, The second installation area (11) is provided with a partition plate (110). The isolation transformer (5) is installed in the second installation area (11) and located at the upper end of the partition plate (110). The energy storage power supply module (7) is installed in the second installation area (11) and located at the lower end of the partition plate (110). The partition plate (110) includes an installation frame (111), a plurality of horizontal rotating shafts (112) distributed in parallel within the installation frame (111), and a plurality of first heat dissipation fins (113) corresponding one-to-one with the horizontal rotating shafts (112) and sleeved on its outer wall.

5. The explosion-proof and automatically cooling low-voltage power supply equipment according to claim 4, characterized in that, Each of the first heat dissipation fins (113) has a plurality of micro heat dissipation grooves (1130) and a plurality of micro heat dissipation protrusions (1131) uniformly arranged on its outer wall. The plurality of micro heat dissipation grooves (1130) and the plurality of micro heat dissipation protrusions (1131) are mixed and distributed, and a heat dissipation coating is sprayed on both the micro heat dissipation grooves (1130) and the micro heat dissipation protrusions (1131).

6. The explosion-proof and automatically cooling low-voltage power supply equipment according to claim 1, characterized in that, The energy storage power supply module (7) includes a battery pack (70), a charge and discharge protection system (71) connected to the battery pack (70) and used to protect the charging and discharging safety of the battery pack (70), an intelligent charge and discharge control system (72) connected to the battery pack (70) and used to control the charging and discharging rate of the battery pack (70), and a power monitoring system (73) connected to the battery pack (70) and used to monitor the remaining power of the battery pack (70). The charge and discharge protection system (71), the intelligent charge and discharge control system (72), and the power monitoring system (73) are located in the first installation area (10).

7. The explosion-proof and automatically cooling low-voltage power supply equipment according to claim 6, characterized in that, The battery pack (70) is composed of multiple batteries (700), and the heat sink (130) is composed of multiple heat sink sub-frames (136) that correspond one-to-one with the batteries (700). Each heat sink sub-frame (136) has a heat-conducting frame (137) at its center. Multiple second heat sink fins (138) are provided between the outer wall of the heat-conducting frame (137) and the inner wall of the corresponding heat sink sub-frame (136), and the second heat sink fins (138) are distributed in a divergent manner. An electric cooling plate (139) is attached to the inner wall of the heat sink sub-frame (136), and the batteries (700) are installed inside the heat-conducting frame (137).

8. The explosion-proof and automatically cooling low-voltage power supply equipment according to claim 7, characterized in that, The second installation area (11) is provided with a barrier support frame (15) at the bottom. The barrier support frame (15) includes a lower support plate (150), a support rod (151) located at the upper end of the lower support plate (150) and between two adjacent heat dissipation sub-frames (136), and a support strip (152) located at the upper end of the support rod (151) and at the joint of two adjacent heat dissipation sub-frames (136).

9. The explosion-proof and automatically cooling low-voltage power supply equipment according to claim 1, characterized in that, The surface of the heat sink (130) is coated with an explosion-proof material layer.

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