Explosion-proof low-voltage power supply equipment capable of automatically cooling

Abstract

The invention provides explosion-proof low-voltage power supply equipment capable of automatically cooling, and belongs to the technical field of power supply equipment. Comprising a mechanical part and an electrical part, the mechanical part comprises a power supply main body, and the electrical part comprises a multifunctional 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 which are arranged in the power supply main body. A partition vertical plate for dividing the interior of the power supply main body into a first mounting area and a second mounting area is arranged in the power supply main body; when the temperature rises, the thermistor triggers the power supply device to work, the power supply device supplies power to the heat dissipation fan for heat dissipation on one hand, the anti-explosion valve can be opened on the other hand, the explosion danger caused by too high temperature can be effectively prevented through the design, and meanwhile explosion propagation is prevented when explosion happens. And the explosion-proof heat dissipation assembly is arranged in the second mounting area, so that the overall heat dissipation is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of power supply equipment, in particular to an explosion-proof low-voltage power supply equipment capable of automatically cooling down. Background Art

[0002] In modern industry, commerce and some special environments (such as places with flammable gases or dust), low-voltage power supply equipment is widely used.

[0003] Low-voltage power supply equipment refers to the device used to convert electrical energy from high-voltage power supply into low-voltage electrical energy and distribute it to various electrical equipment in the power system. These devices usually 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 stable and reliable power supply for power equipment.

[0004] However, there are many problems with the existing low-voltage power supply equipment. On the one hand, from the perspective of explosion-proof performance, many power supply equipment lack effective explosion-proof design. In some environments where flammable and explosive substances may exist, sparks generated by failures in electrical components inside the power supply equipment or explosions caused by overheating of components can easily cause explosion accidents. Once an explosion occurs, due to the lack of an effective barrier structure, the explosion will spread rapidly, which will not only damage the equipment itself, but also pose a serious threat to the surrounding environment and personnel safety. On the other hand, the heat dissipation problem also restricts the performance and safety of low-voltage power supply equipment. With the increase in the power of power supply equipment and the high degree of integration of internal electrical components, the equipment will generate a lot of heat during operation. The heat dissipation methods of traditional power supply equipment are often relatively simple, such as relying solely on natural heat dissipation or simple fan heat dissipation, which has low heat dissipation efficiency. This will not only cause the internal temperature of the equipment to be too high, affecting the performance and service life of electrical components, but also high temperature may cause a series of safety hazards.

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

[0006] In view of the above-mentioned problems, the present invention provides an explosion-proof low-voltage power supply device capable of automatically cooling down.

[0007] The technical solution of the present invention is: an explosion-proof and automatically cool low-voltage power supply device, comprising a mechanical part and an electrical part, wherein the mechanical part comprises a power supply body, and the electrical part comprises a multifunctional 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 arranged in the power supply body, and a partition vertical plate is arranged in the power supply body to divide the inside of the power supply body into a first installation area and a second installation area;

[0008] The multifunctional power analysis module, data acquisition module, matrix converter and intelligent power switch module are centrally installed in the first installation area, and the isolation transformer and the energy storage power supply module are arranged in the second installation area;

[0009] An explosion-proof heat dissipation assembly is provided in each second installation area, and the explosion-proof heat dissipation assembly includes a heat dissipation seat provided in the second installation area and used to place the energy storage power supply module, heat dissipation ports provided in the first installation area, the partition plate and the side wall of the second installation area, a heat dissipation fan provided at the heat dissipation port corresponding to the second installation area, a thermistor provided on the inner wall of the second installation area, a power supply connected to the thermistor through an energized line, and an explosion-proof valve connected to the power supply through an energized line, and the power supply is connected to the heat dissipation fan through an energized line;

[0010] The installation positions of the heat dissipation openings located in the first installation area, the partition vertical plate and the second installation area are distributed at intervals in the upper and lower parts.

[0011] Furthermore, cabinet doors are hingedly connected to the side walls of the first installation area and the second installation area, and transparent observation windows are provided on the cabinet doors.

[0012] Note: The cabinet doors are used to protect the interior of the first installation area and the second installation area, which can prevent external dust, moisture, corrosive gases, etc. from entering the power supply body and protect the internal electrical components from damage, and prevent people from accidentally touching the internal live parts, thereby improving operational safety. A transparent observation window is set on the cabinet door to facilitate and intuitively observe the working status inside the power supply body.

[0013] Furthermore, the shell of the power supply body adopts a double-layer structure, the outer layer is a high-strength metal material, and the inner layer is a fire-proof and explosion-proof material.

[0014] Description: The double-layer shell can provide double protection. The outer layer of high-strength metal material can resist external mechanical impact and physical damage, while the inner layer of fire-proof and explosion-proof composite materials can effectively prevent the spread of flames and explosions when internal failure occurs, protecting the surrounding environment and personnel safety.

[0015] Furthermore, a partitioning transverse plate is provided in the second installation area, the isolation transformer is installed in the second installation area and is located at the upper end of the partitioning transverse plate, the energy storage power supply module is installed in the second installation area and is located at the lower end of the partitioning transverse plate, and the partitioning transverse plate includes an installation outer frame, a plurality of horizontal rotation axes distributed in parallel in the installation outer frame, and a plurality of first heat dissipation fins corresponding one-to-one to the horizontal rotation axes and sleeved on its outer wall.

[0016] Description: By dividing the second installation area into two parts, upper and lower, by a partitioning cross plate, the isolation transformer and the energy storage power supply module are installed separately, which can avoid electrical interference between the two and cause safety hazards. In addition, when the partitioning cross plate is in use, the installation outer frame is fixedly connected to the inner wall of the second installation area. At the same time, a plurality of first heat dissipation fins distributed parallel to each other are arranged in the installation outer frame, so that the isolation transformer and the energy storage power supply module can be installed separately. Through the gap between two adjacent first heat dissipation fins, heat can be exchanged and dissipated between the upper and lower parts where the isolation transformer and the energy storage power supply module are located, and heat accumulation will not be caused by separation, so that the temperature in the entire second installation area is more uniform, local overheating is avoided, and the risk of explosion caused by a sudden increase in internal pressure of the battery caused by local overheating is reduced.

[0017] Furthermore, the outer wall of each of the first heat dissipation fins is evenly provided with a plurality of micro heat dissipation grooves and a plurality of micro heat dissipation protrusions, the plurality of micro heat dissipation grooves and the plurality of micro heat dissipation protrusions are mixedly distributed, and the micro heat dissipation grooves and the micro heat dissipation protrusions are sprayed with a heat dissipation coating.

[0018] Description: The heat dissipation coating is a graphene heat dissipation coating. Graphene has extremely high thermal conductivity and can quickly conduct the heat on the heat dissipation fins to enhance the heat dissipation effect. When the first heat dissipation fin is in use, the surface of the first heat dissipation fin is evenly provided with micro heat dissipation grooves and micro heat dissipation protrusions, which can increase the surface area of ​​the first heat dissipation fin, dissipate heat to the surrounding environment faster, enhance air flow, improve heat dissipation uniformity, and optimize the heat dissipation structure.

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

[0020] Description: The battery pack is used to power external devices, and the charging and discharging safety of the battery pack is protected by the charging and discharging protection system. 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 the power monitoring system to reasonably arrange the power consumption plan.

[0021] Furthermore, the battery pack is composed of multiple batteries, the heat sink is composed of multiple heat dissipation sub-frames corresponding to the batteries one by one, a heat conductive frame is provided at the center of each heat dissipation sub-frame, a plurality of second heat dissipation fins are provided between the outer wall of the heat conductive frame and the inner wall of the corresponding heat dissipation sub-frame, and the second heat dissipation fins are distributed in a divergent shape, an electric cooling sheet is attached to the inner wall of the heat dissipation sub-frame, and the battery is installed inside the heat conductive frame.

[0022] Note: Since the battery pack is located at the lower end of the partition horizontal plate, in order to avoid the bottom of the battery pack directly contacting the bottom of the second installation area and causing local overheating, the batteries are connected one-to-one through the heat conduction frame in the heat dissipation sub-frame, so that the bottom of the battery can be suspended, which is conducive to the flow of air at the bottom of the battery, taking away heat and improving the heat dissipation efficiency. Since the heat conduction frame is made of heat-conducting material, the heat generated by the battery during operation can be conducted to each second heat dissipation fin, and the heat can be dissipated through the gap between two adjacent second heat dissipation fins, so that the temperature in the entire second installation area is more uniform, local overheating is avoided, and the heat dissipation efficiency is improved.

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

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

[0025] Furthermore, a flameproof material layer is sprayed on the surface of the heat sink.

[0026] Note: The surface of the heat sink is sprayed with a flameproof material layer to prevent the explosion from spreading inside the equipment, which has a certain auxiliary effect on heat dissipation and improves the overall safety of the equipment.

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

[0028] When the explosion-proof and automatically cooling low-voltage power supply equipment of the present invention is used, the multifunctional power analysis module, the data acquisition module, the matrix converter and the intelligent power switch module are centrally installed in the first installation area, the isolation transformer and the energy storage power supply module are arranged in the second installation area, and the isolation transformer and the energy storage power supply module are installed separately in the second installation area by a partitioning cross plate, so as to avoid electrical interference between the two and cause safety hazards; when the temperature rises, the thermistor triggers the power supply to work, and the power supply can supply power to the cooling fan for heat dissipation on the one hand, and open the explosion-proof valve on the other hand. This design can effectively prevent the explosion hazard caused by excessive temperature, and prevent the spread of the explosion when the explosion occurs; the power supply body shell adopts a double-layer structure, the outer layer is a high-strength metal material to resist external mechanical impact and physical damage, and the inner layer is a fireproof and explosion-proof material, which can effectively prevent the spread of flames and explosions when an internal fault occurs, and protect the surrounding environment and personnel safety;

[0029] An explosion-proof heat dissipation component is arranged in the second installation area, including a heat dissipation seat, a heat dissipation port, a heat dissipation fan, etc., and the heat dissipation port is distributed in the first installation area, the partition vertical plate and the second installation area at intervals, which is beneficial to the overall heat dissipation; a plurality of first heat dissipation fins are arranged on the partition horizontal plate, and the first heat dissipation fins are provided with micro heat dissipation grooves, micro heat dissipation protrusions and sprayed with a heat dissipation coating, which can make the heat exchange and dissipation in the area where the isolation transformer and the energy storage power supply module are located more uniform, and avoid local overheating; the battery pack in the energy storage power supply module is cooled by the heat dissipation sub-frame, the heat conduction frame and the second heat dissipation fins, the inner wall of the heat dissipation sub-frame is affixed with an electric cooling plate, and the design of the heat dissipation seat makes the bottom end of the battery suspended in the air, which is beneficial to the air flow to carry away the heat. These designs make the temperature in the entire second installation area more uniform and improve the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

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

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

[0037] Among them, 1-power supply body, 10-first installation area, 11-second installation area, 110-partition horizontal plate, 111-installation outer frame, 112-horizontal rotation axis, 113-first heat dissipation fins, 1130-micro heat dissipation slots, 1131-micro heat dissipation protrusions, 12-partition vertical plates, 13-explosion-proof heat dissipation components, 130-heat dissipation seat, 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 fins, 139-electric cooling fins, 14-cabinet doors, 140-transparent observation windows, 15-barrier support frames, 150-lower support plates, 151-support vertical rods, 152-support bars, 2-multi-function power analysis modules, 3-data acquisition modules, 4-matrix converters, 5-isolation transformers, 6-intelligent power switch modules, 7-energy storage power supply modules, 70-battery packs, 700-batteries, 71-charge and discharge protection systems, 72-intelligent charge and discharge control systems, 73-power monitoring systems. DETAILED DESCRIPTION

[0038] In order to further understand the content of the present invention, the present invention is described in detail by way of examples below.

[0039] Example 1: Figure 1 , 2 As shown, an explosion-proof and automatically cool low-voltage power supply equipment includes a mechanical part and an electrical part, wherein the mechanical part includes a power supply body 1, and the electrical part includes a multifunctional 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 arranged in the power supply body 1. The power supply body 1 is provided with a partition vertical plate 12 for dividing the interior thereof into a first installation area 10 and a second installation area 11, wherein the multifunctional 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 multifunctional power analysis module 2 can adopt a multifunctional power analysis module of model EDA9111A, the data acquisition module 3 can adopt an ABB CI627A 3BSE017457R1 data acquisition module, the matrix converter 4 can adopt a DVI matrix switcher, the isolation transformer 5 can adopt a Satons-STS-SG series isolation transformer, and the intelligent power switch module 6 can adopt a Huarun Micro CS5755MTO intelligent power switch module;

[0040] The multifunctional power analysis module 2, the data acquisition module 3, the matrix converter 4 and the 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 arranged in the second installation area 11;

[0041] The second installation area 11 is provided with an explosion-proof heat dissipation assembly 13, which includes a heat dissipation seat 130 provided in the second installation area 11 and used to place the energy storage power supply module 7, a heat dissipation port 131 provided 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 provided at the heat dissipation port 131 corresponding to the second installation area 11, a thermistor 133 provided on the inner wall of the second installation area 11, a power supply 134 connected to the thermistor 133 through an energized line, and a An explosion-proof valve 135 connected to a power supply 134, wherein the power supply 134 is connected to a cooling fan 132 through an electric line, wherein the cooling fan 132, the thermistor 133, the power supply 134 and the explosion-proof valve 135 all adopt existing technologies, for example, the cooling fan 132 may adopt a cooling fan of model S12038-8K, the thermistor 133 may adopt a MF58 series thermistor, and the explosion-proof valve 135 may adopt an explosion-proof valve of model WDYFA06-AB3-G24 / L15-Z104;

[0042] The heat dissipation openings 131 located on the first installation area 10, the partition vertical plate 12 and the second installation area 11 are installed at intervals in the upper and lower parts;

[0043] The side walls of the first installation area 10 and the second installation area 11 are both hinged with a cabinet door 14, and a transparent observation window 140 is provided on the cabinet door 14. The cabinet door 14 protects the interior of the first installation area 10 and the second installation area 11, which can prevent external dust, moisture, corrosive gas, etc. from entering the power supply body 1, protect the internal electrical components from damage, and prevent personnel from accidentally touching the internal live parts, thereby improving operational safety. The transparent observation window 140 is provided on the cabinet door 14, so that the working status inside the power supply body 1 can be observed intuitively and conveniently;

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

[0045] 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 charge and discharge 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 charge and discharge 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 arranged in the first installation area 10, and the external device is powered by the battery pack 70, and the charge and discharge protection system 71 protects the charge and discharge of the battery pack 70. Electricity safety, the intelligent charge and discharge control system 72 flexibly adjusts the charge and discharge 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, so as to reasonably arrange the electricity plan. Among them, the charge and discharge protection system 71, the intelligent charge and discharge control system 72 and the power monitoring system 73 all adopt existing technologies. For example, the charge and discharge protection system 71 can adopt a charge and discharge protector of model MAX1665S / V / X, the intelligent charge and discharge control system 72 can adopt an STM32 core controller, and the power monitoring system 73 can adopt an XJ261C 450V / 5A power monitoring meter;

[0046] like Figure 5 , 6 As shown, the battery pack 70 is composed of 9 batteries 700, and the heat sink 130 is composed of 9 heat sink sub-frames 136 corresponding to the batteries 700. A heat conduction frame 137 is provided at the center of each heat sink sub-frame 136. 50 second heat sink fins 138 are provided between the outer wall of the heat conduction 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 shape. The inner wall of the heat sink sub-frame 136 is affixed with an electric cooling sheet 139. The battery 700 is installed inside the heat conduction frame 137. Since the battery pack 70 is located at the lower end of the partition horizontal plate 110, in order to avoid the bottom of the battery pack 70 directly contacting the bottom of the second installation area 11 to cause a local The heat conducting frame 137 in the heat dissipation subframe 136 is used to connect the storage battery 700 one by one, so that the bottom of the storage battery 700 can be suspended, which is conducive to the flow of air at the bottom of the storage battery, taking away the heat and improving the heat dissipation efficiency. Since the heat conducting frame 137 is made of heat conducting material, the heat generated by the storage battery 700 during operation can be conducted to each second heat dissipation fin 138, and the gap between two adjacent second heat dissipation fins 138 can be penetrated for heat dissipation, so that the temperature in the entire second installation area 11 is more uniform, avoiding local overheating and improving the heat dissipation efficiency. Among them, the storage battery 700 adopts the existing technology, for example, the storage battery 700 can adopt a lead-acid battery;

[0047] The surface of the heat sink 130 is sprayed with a flameproof material layer, which can prevent the explosion from spreading inside the device, has a certain auxiliary effect on heat dissipation, and improves the overall safety of the device. The flameproof material layer can be made of polyolefin polymer materials, such as polyethylene and polypropylene.

[0048] Embodiment 2: This embodiment records a method for using an explosion-proof and automatically cooling low-voltage power supply device in Embodiment 1, comprising the following steps:

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

[0050] S2. During normal power supply, the intelligent charge and discharge control system 72 controls the charging process of the battery pack 70 according to the state of the battery pack 70 and the external power supply. The charge and discharge protection system 71 constantly monitors and protects the charge and discharge safety of the battery pack 70 to prevent overcharge, overdischarge, etc. The power monitoring system 73 monitors the remaining power of the battery pack 70 in real time to arrange the power consumption plan reasonably.

[0051] S3. When power is required for external devices, the battery pack 70 outputs the stored electric energy or the converted electric energy directly input from the outside to the external devices through its own output circuit. In this process, the intelligent charge and discharge 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 charge and discharge control system 72 will quickly switch the power supply mode, and the battery pack 70 will provide power support for the multifunctional power analysis module 2, data acquisition module 3, matrix converter 4, isolation transformer 5, intelligent power switch module 6 and external connected devices in the device;

[0053] During the operation of S5, the multifunctional power analysis module 2, the data acquisition module 3, the matrix converter 4, the isolation transformer 5, the intelligent power switch module 6 and the energy storage power supply module 7, the heat generated will be dissipated to the first installation area 10 and the second installation area 11. Since the installation positions of the heat dissipation ports 131 on the first installation area 10, the partition vertical plate 12 and the second installation area 11 are distributed in upper and lower intervals, 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 in the first installation area 10 and the second installation area 11 is extracted by the heat dissipation fan 132. At the same time, the external cold air flows in through the heat dissipation ports 131 on the side wall of the first installation area 10 for heat dissipation. When the internal pressure of the power supply body 1 exceeds the set value, the explosion-proof valve 135 will automatically open to release the internal pressure, thereby protecting the safety of equipment and personnel.

[0054] Embodiment 3: This embodiment differs from Embodiment 1 in that:

[0055] like Figure 3 As shown, a partitioning transverse plate 110 is provided in the second installation area 11, the isolation transformer 5 is installed in the second installation area 11 and is located at the upper end of the partitioning transverse plate 110, the energy storage power supply module 7 is installed in the second installation area 11 and is located at the lower end of the partitioning transverse plate 110, the partitioning transverse plate 110 includes an installation outer frame 111, a plurality of horizontal rotation axes 112 parallel to the installation outer frame 111, and a plurality of first heat dissipation fins 113 corresponding to the horizontal rotation axes 112 and sleeved on its outer wall. The second installation area 11 is divided into an upper and lower part by the partitioning transverse plate 110, and the isolation transformer 5 and the energy storage power supply module 7 are installed separately, so as to avoid electrical interference between the two and cause safety hazards. In addition, when the partition cross 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, a plurality of first heat dissipation fins 113 are arranged in parallel with each other in the mounting frame 111, so that the isolation transformer 5 and the energy storage power supply module 7 can be separately installed and dissipated through the gap between two adjacent first heat dissipation fins 113. 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 accumulation will not be caused by separation, so that the temperature in the entire second mounting area 11 is more uniform, local overheating is avoided, and the risk of explosion caused by a sudden increase in internal pressure of the battery caused by local overheating is reduced;

[0056] like Figure 4As shown, the outer wall of each first heat dissipation fin 113 is evenly provided with a plurality of micro heat dissipation grooves 1130 and 20 micro heat dissipation protrusions 1131, 50 micro heat dissipation grooves 1130 and a plurality of micro heat dissipation protrusions 1131 are mixedly distributed, and the micro heat dissipation grooves 1130 and the micro heat dissipation protrusions 1131 are sprayed with a heat dissipation coating, and the heat dissipation coating is a graphene heat dissipation coating. Graphene has extremely high thermal conductivity and can quickly conduct the heat on the heat dissipation fins to enhance the heat dissipation effect. When the first heat dissipation fin 113 is in use, since the micro heat dissipation grooves 1130 and the micro heat dissipation protrusions 1131 are evenly provided on its surface, the surface area of ​​the first heat dissipation fin 113 can be increased, so that the heat is dissipated to the surrounding environment faster, the air flow is enhanced, the heat dissipation uniformity is improved, and the heat dissipation structure is optimized;

[0057] like Figure 7 As shown, a blocking support frame 15 is provided at the bottom end of the second installation area 11, and the blocking support frame 15 includes a lower support plate 150, a support vertical rod 151 provided at the upper end of the lower support plate 150 and located between two adjacent heat dissipation sub-frames 136, and a support bar 152 provided at the upper end of the support vertical rod 151 and located at the joint of two adjacent heat dissipation sub-frames 136. Since the bottom end of the battery 700 is suspended, in order to improve the installation reliability of the heat dissipation seat 130, a support vertical rod 151 located between two adjacent heat dissipation sub-frames 136 is provided at the upper end of the lower support plate 150 installed at the bottom end of the second installation area 11, and a support bar 152 for supporting the joint of two adjacent heat dissipation sub-frames 136 is provided at the upper end of each support vertical rod 151, thereby improving the installation reliability of the heat dissipation seat 130. The stable installation can ensure that the heat dissipation seat 130 continuously and effectively dissipates the heat of the battery 700, thereby improving the heat dissipation efficiency of the entire system and avoiding the performance degradation of the battery 700 or safety hazards caused by heat dissipation problems.

[0058] Embodiment 4: This embodiment differs from Embodiment 2 in that:

[0059] In step S5, since the partition cross plate 110 is in use, the mounting frame 111 is fixedly connected to the inner wall of the second mounting area 11, and at the same time, a plurality of first heat dissipation fins 113 distributed parallel to each other are arranged in the mounting frame 111, so that the isolation transformer 5 and the energy storage power supply module 7 can be separately installed and heat is dissipated through the gap between two adjacent first heat dissipation fins 113, and 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, since the micro heat dissipation grooves 1130 and micro heat dissipation protrusions 1131 are evenly arranged on the surface thereof, the surface area of ​​the first heat dissipation fins 113 can be increased, so that heat can be dissipated to the surrounding environment faster.

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 comprises a power supply body (1), and the electrical part comprises a multifunctional 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) arranged in the power supply body (1), characterized in that: A partition vertical plate (12) is provided inside the power supply body (1) for dividing the interior of the power supply body into a first installation area (10) and a second installation area (11); The multifunctional power analysis module (2), the data acquisition module (3), the matrix converter (4) and the 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 arranged in the second installation area (11); An explosion-proof heat dissipation assembly (13) is provided in each of the second installation areas (11), the explosion-proof heat dissipation assembly (13) comprising a heat dissipation seat (130) provided in the second installation area (11) and used for placing an energy storage power supply module (7), a heat dissipation port (131) provided 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) provided at the heat dissipation port (131) corresponding to the second installation area (11), a thermistor (133) provided on the inner wall of the second installation area (11), a power supply (134) connected to the thermistor (133) via an energized circuit, and an explosion-proof valve (135) connected to the power supply (134) via an energized circuit, wherein the power supply (134) is connected to the heat dissipation fan (132) via an energized circuit; The installation positions of the heat dissipation openings (131) located on the first installation area (10), the partition vertical plate (12) and the second installation area (11) are distributed at intervals up and down.

2. The explosion-proof and automatically cooling low-voltage power supply device according to claim 1, characterized in that: The side walls of the first installation area (10) and the second installation area (11) are both hingedly connected with cabinet doors (14), 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 body (1) adopts a double-layer structure, the outer layer is made of high-strength metal material, and the inner layer is made of fireproof and explosion-proof material.

4. The explosion-proof and automatically cooling low-voltage power supply device according to claim 1, characterized in that: A partitioning transverse plate (110) is provided in the second installation area (11), the isolation transformer (5) is installed in the second installation area (11) and is located at the upper end of the partitioning transverse plate (110), the energy storage power supply module (7) is installed in the second installation area (11) and is located at the lower end of the partitioning transverse plate (110), and the partitioning transverse plate (110) comprises an installation outer frame (111), a plurality of horizontal rotation axes (112) distributed in parallel in the installation outer frame (111), and a plurality of first heat dissipation fins (113) corresponding one-to-one to the horizontal rotation axes (112) and sleeved on the outer wall thereof.

5. The explosion-proof and automatically cooling low-voltage power supply equipment according to claim 4, characterized in that: The outer wall of each of the first heat dissipation fins (113) is evenly provided with a plurality of micro heat dissipation grooves (1130) and a plurality of micro heat dissipation protrusions (1131); the plurality of micro heat dissipation grooves (1130) and the plurality of micro heat dissipation protrusions (1131) are mixedly distributed, and the micro heat dissipation grooves (1130) and the micro heat dissipation protrusions (1131) are sprayed with a heat dissipation coating.

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) comprises a battery pack (70), a charge and discharge protection system (71) connected to the battery pack (70) and used to protect the charge and discharge 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 charge and discharge rate of the battery pack (70), and an electric quantity monitoring system (73) connected to the battery pack (70) and used to monitor the remaining electric quantity of the battery pack (70); the charge and discharge protection system (71), the intelligent charge and discharge control system (72), and the electric quantity monitoring system (73) are arranged 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 a plurality of batteries (700); the heat sink (130) is formed by splicing a plurality of heat sink sub-frames (136) corresponding to the batteries (700) one by one; a heat conduction frame (137) is provided at the center of each heat sink sub-frame (136); a plurality of second heat sink fins (138) are provided between the outer wall of the heat conduction 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 sheet (139) is attached to the inner wall of the heat sink sub-frame (136); and the batteries (700) are installed inside the heat conduction frame (137).

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

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