A microgrid protection monitoring device

Abstract

The utility model provides a kind of micro-grid protection monitoring equipment, it is related to protection monitoring technical field, including temperature insulation sleeve, the one end of temperature insulation sleeve is provided with waterproof sealing pad, the one end fixed mounting of waterproof sealing pad is sealed with the sealing baffle of monitoring shell, the one end fixed mounting of sealing baffle is fastened with the pulling adjustment seat of it.The utility model has the advantages that: in the equipment shell inside for the protection monitoring of micro-grid, temperature insulation sleeve that isolates internal and external temperature is arranged, and sealing baffle that can be opened and closed is arranged on the side of equipment shell, the waterproof sealing pad of one end of sealing baffle and temperature insulation sleeve form temperature insulation waterproof inner space in the inside of equipment shell, the equipment is isolated inside and outside, avoid the environment of outside to cause the influence to the inside of equipment, sealing baffle is fixed tightly using pulling adjustment seat and positioning block, guarantee the sealing property of equipment, improve the stability of equipment in complex environment work.

Description

Technical Field

[0001] This utility model relates to the field of protection and monitoring technology, and in particular to a microgrid protection and monitoring device. Background Technology

[0002] Microgrids are small-scale power systems relative to traditional centralized power grids. They are "localized power ecosystems" that integrate distributed energy resources, energy storage, loads, and control devices, enabling efficient energy utilization, flexible dispatch, and reliable power supply. Against the backdrop of the integrated development of distributed energy resources and smart grids, microgrids, as small-scale power systems integrating distributed power sources (such as photovoltaic, wind power, and energy storage systems), loads, and control devices, have become a core solution for ensuring power supply to remote areas and achieving energy autonomy due to their flexible energy dispatch capabilities and high reliability. Microgrid protection and monitoring equipment is crucial for ensuring its safe and stable operation. By collecting electrical parameters such as voltage, current, and frequency in real time, it monitors abnormal states such as line faults, harmonic pollution, and islanding effects, and triggers protection devices for rapid response, preventing fault propagation and system paralysis.

[0003] However, existing protective monitoring equipment is easily affected by the environment in complex environments (such as high temperature and high humidity), which can easily lead to false alarms or data loss, resulting in poor stability of protective monitoring. Utility Model Content

[0004] Therefore, the purpose of this utility model is to propose a microgrid protection and monitoring device to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, one embodiment of this utility model provides a microgrid protection and monitoring device, including a monitoring housing that protects a data monitoring host for protecting and monitoring the microgrid. The data monitoring host includes a smart meter, a power meter, a frequency / voltage monitor, and a harmonic analyzer, etc., for real-time acquisition of core electrical quantities such as voltage, current, frequency, and power. The monitoring housing is internally equipped with a heat insulation sleeve for high-temperature protection. One end of the heat insulation sleeve is equipped with a waterproof sealing gasket for sealing and waterproofing. One end of the waterproof sealing gasket is fixedly installed with a sealing baffle for sealing the monitoring housing. One end of the sealing baffle is fixedly installed with a pull-adjusting seat for fastening it. The other end of the pull-adjusting seat is fixedly installed with a positioning block for locking it. The bottom of the monitoring housing is equipped with a heat sink assembly made of unidirectional heat-conducting material, and one side of the heat sink assembly is equipped with a protective net for protection.

[0006] Preferably, the bottom of the monitoring housing is provided with a heat dissipation fixing groove for fixing the heat sink assembly, the bottom of the insulation sleeve is provided with a through groove that penetrates the heat sink assembly, and one end of the insulation sleeve is provided with a sealing groove for fastening the waterproof sealing gasket.

[0007] The above technical solution is adopted: the heat dissipation fixing groove at the bottom of the monitoring shell (aluminum alloy material) fixes the heat dissipation fin assembly with bolts to ensure that the heat dissipation components are installed firmly. The bottom through groove of the insulation sleeve (aerogel composite material) (the hole diameter matches the heat dissipation fins) allows the heat dissipation fin assembly to pass through, which does not hinder heat dissipation and maintains the integrity of the insulation. One end of the sealing groove engages with the waterproof sealing gasket to form the first line of sealing defense.

[0008] Preferably, in any of the above embodiments, the size of the waterproof sealing gasket is smaller than the size of the sealing baffle, one end of the waterproof sealing gasket is provided with a sealing ring platform that engages with the thermal insulation sleeve, and both ends of the sealing baffle are provided with connecting grooves to accommodate the pull adjustment seat.

[0009] The above technical solution is adopted: the waterproof sealing gasket (nitrile rubber) sealing ring is embedded in the sealing groove of the heat insulation sleeve, and its size is smaller than that of the sealing baffle (stainless steel material), so that the baffle can apply uniform pressure to the sealing gasket when it is closed, thus improving the sealing stability. The connecting grooves at both ends of the sealing baffle accommodate the pull adjustment seat, preventing the adjustment parts from protruding and affecting the sealing surface fit, and further blocking water vapor and dust.

[0010] Preferably, in any of the above embodiments, the pull adjustment seat includes a fastening spring that provides tension and a pull seat that provides support. The fastening spring is fixedly installed inside the monitoring housing, and one end of the fastening spring is fixedly installed with the pull seat that moves inside the monitoring housing.

[0011] The above technical solution is adopted: the fastening spring is fixed inside the monitoring housing. Under normal conditions, the pull seat (ABS material) is pushed to drive the sealing baffle to press the waterproof sealing gasket. When the sealing baffle is closed, the spring force continues to act to compensate for the deformation of the components caused by temperature changes, ensuring long-term reliable sealing. The pull seat slides along the inner wall of the housing, which facilitates the smooth opening and closing of the baffle.

[0012] Preferably, in any of the above embodiments, the positioning block includes a positioning spring for support and a locking rod for engaging and positioning the pull seat. The positioning spring is fixedly installed inside the pull seat, and one end of the positioning spring is fixedly installed with a locking rod that moves inside the pull seat.

[0013] The above technical solution is adopted: the positioning spring pushes the locking rod (nylon material) to extend out of the pull seat and lock into the positioning hole of the monitoring shell to lock the sealing baffle and prevent accidental opening. When it is necessary to open, press the locking rod to compress the spring, so that it is disengaged from the positioning hole. After unlocking, the pull seat drives the baffle to open under the action of the fastening spring. The operation is convenient and the positioning is accurate.

[0014] Preferably, in any of the above embodiments, the heat sink assembly includes a heat-conducting plate with a large contact area for heat dissipation and several heat dissipation fins for multi-point heat dissipation. The heat-conducting plate is located inside the insulation sleeve, and several heat dissipation fins penetrating the insulation sleeve and the monitoring shell are fixedly installed at one end of the heat-conducting plate.

[0015] The above technical solution is adopted: the heat-conducting plate (copper-aluminum composite material) is attached to the monitoring host inside the insulation sleeve to quickly absorb the heat of the equipment operation. One end of the heat dissipation fin penetrates through the insulation sleeve and the monitoring shell, and the heat is discharged through air convection. The use of unidirectional heat-conducting material allows only internal heat to be transferred to the outside, preventing external high temperature from entering the insulation sleeve and ensuring that the host operates in the optimal temperature range.

[0016] Preferably, the top of the protective net is provided with a magnetic sheet that provides magnetic attraction, and the protective net is fixed to the bottom of the monitoring housing by magnetic attraction. The bottom of the protective net is provided with a number of ventilation slots.

[0017] The above technical solution is adopted: the magnetic piece (neodymium iron boron material) at the top of the protective mesh (stainless steel wire mesh) is attached to the bottom of the monitoring shell, which can be disassembled and installed without tools, making it easy to clean the dust on the mesh surface. The ventilation slots at the bottom ensure air circulation, which does not affect heat dissipation while blocking foreign objects of particle size and preventing the heat dissipation fins from being blocked.

[0018] The monitoring casing's internal insulation sleeve blocks external high temperatures, and its sealing groove engages with the waterproof sealing gasket. The sealing baffle, pushed by the tightening spring of the pull adjustment seat, presses the sealing gasket to form a seal. When the pull seat closes the baffle, the positioning spring of the positioning block pushes the locking rod into the positioning hole of the casing to achieve locking. Pressing the locking rod unlocks the casing. The heat-conducting plates of the heat sink assembly absorb internal heat and conduct it out through the heat dissipation fins. The unidirectional heat conduction characteristic prevents external heat from intruding. The protective net is attached to the bottom of the casing by magnetic sheets, blocking dust while ensuring ventilation.

[0019] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0020] 1. An insulating sleeve is installed inside the casing of the equipment used for microgrid protection and monitoring to isolate internal and external temperatures. A closable sealing baffle is installed on one side of the equipment casing. The waterproof sealing gasket at one end of the sealing baffle and the insulating sleeve form an insulating and waterproof inner space inside the equipment casing, isolating the equipment from the outside and preventing the external environment from affecting the internal structure of the equipment. At the same time, the sealing baffle is tightened and fixed by pulling the adjustment seat and positioning block to ensure the sealing performance of the equipment and improve the stability of the equipment in complex environments.

[0021] 2. A unidirectional heat sink assembly is installed inside the equipment for protecting and monitoring the microgrid, penetrating the insulation sleeve and the monitoring shell. The unidirectional heat dissipation of the heat sink assembly dissipates the heat inside the equipment to the outside while preventing the outside temperature from being conducted into the equipment, thus ensuring the stability of the equipment operation.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic diagram of the structure according to an embodiment of the present utility model;

[0025] Figure 2 This is a cross-sectional structural diagram of the monitoring shell according to an embodiment of the present utility model;

[0026] Figure 3 This is a cross-sectional structural diagram of the sealing baffle according to an embodiment of the present utility model;

[0027] Figure 4 This is a cross-sectional structural diagram of the pull adjustment seat according to an embodiment of the present utility model;

[0028] Figure 5 According to the embodiments of this utility model Figure 2 Enlarged structural diagram at point A;

[0029] The components are: 1-monitoring shell, 2-insulation sleeve, 3-waterproof sealing gasket, 4-sealing baffle, 5-pull adjustment seat, 51-fastening spring, 52-pull seat, 6-positioning block, 61-positioning spring, 62-clamping rod, 7-heat sink assembly, 71-heat conduction plate, 72-heat dissipation fins, 8-protective net, 9-magnetic sheet. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0031] like Figure 1-5As shown in the figure, a microgrid protection and monitoring device according to an embodiment of the present invention includes a monitoring housing 1 for protecting the data monitoring host for protecting and monitoring the microgrid. The data monitoring host includes a smart meter, a power meter, a frequency / voltage monitor, and a harmonic analyzer, etc., for real-time acquisition of core electrical quantities such as voltage, current, frequency, and power. The monitoring housing 1 is provided with a heat insulation sleeve 2 for high-temperature protection. One end of the heat insulation sleeve is provided with a waterproof sealing gasket 3 for sealing and waterproofing. One end of the waterproof sealing gasket 3 is fixedly installed with a sealing baffle 4 for sealing the monitoring housing. One end of the sealing baffle 4 is fixedly installed with a pull adjustment seat 5 for fastening. The other end of the pull adjustment seat 5 is fixedly installed with a positioning block 6 for locking. The bottom of the monitoring housing 1 is provided with a heat sink assembly 7 made of unidirectional heat conduction material. One side of the heat sink assembly 7 is provided with a protective net 8 for protecting it.

[0032] Preferably, the bottom of the monitoring housing 1 is provided with a heat dissipation fixing groove for fixing the heat sink assembly 7, the bottom of the insulation sleeve 2 is provided with a through groove for penetrating the heat sink assembly 7, and one end of the insulation sleeve 2 is provided with a sealing groove for engaging and securing the waterproof sealing gasket 3.

[0033] The above technical solution is adopted: the heat dissipation fixing groove at the bottom of the monitoring shell 1 (aluminum alloy material) fixes the heat dissipation fin group 7 with bolts to ensure that the heat dissipation component is installed firmly. The bottom through groove of the insulation sleeve 2 (aerogel composite material) (the hole diameter matches the heat dissipation fin 72) allows the heat dissipation fin group to pass through, which does not hinder heat dissipation and maintains the integrity of heat insulation. One end of the sealing groove engages with the waterproof sealing gasket 3 to form the first sealing line.

[0034] Preferably, in any of the above schemes, the size of the waterproof sealing gasket 3 is smaller than the size of the sealing baffle 4, one end of the waterproof sealing gasket 3 is provided with a sealing ring platform that engages with the heat insulation sleeve 2, and both ends of the sealing baffle 4 are provided with connecting grooves to accommodate the pull adjustment seat 5.

[0035] The above technical solution is adopted: the waterproof sealing gasket 3 (nitrile rubber) sealing ring is embedded in the sealing groove of the heat insulation sleeve 2, and its size is smaller than that of the sealing baffle 4 (stainless steel material), so that the baffle can apply uniform pressure to the sealing gasket when it is closed, thus improving the sealing stability. The connecting grooves at both ends of the sealing baffle 4 accommodate the pull adjustment seat 5, preventing the adjustment parts from protruding and affecting the sealing surface fit, and further blocking water vapor and dust.

[0036] Preferably, in any of the above embodiments, the pull adjustment seat 5 includes a fastening spring 51 that provides tension and a pull seat 52 that provides support. The fastening spring 51 is fixedly installed inside the monitoring housing 1, and one end of the fastening spring 51 is fixedly installed with the pull seat 52 that moves inside the monitoring housing 1.

[0037] The above technical solution is adopted: the fastening spring 51 is fixed inside the monitoring housing 1. Under normal conditions, the pull seat 52 (ABS material) is pushed to drive the sealing baffle 4 to press the waterproof sealing gasket 3. When the sealing baffle is closed, the spring force continues to act to compensate for the deformation of the components caused by temperature changes, ensuring long-term reliable sealing. The pull seat slides along the inner wall of the housing, which facilitates the smooth opening and closing of the baffle.

[0038] Preferably, in any of the above embodiments, the positioning block 6 includes a positioning spring 61 for support and a locking rod 62 for engaging and positioning the pull seat 52. The positioning spring 61 is fixedly installed inside the pull seat 52, and one end of the positioning spring 61 is fixedly installed with the locking rod 62 that moves inside the pull seat 52.

[0039] The above technical solution is adopted: the positioning spring 61 pushes the locking rod 62 (nylon material) to extend out of the pull seat 52 and lock into the positioning hole of the monitoring shell 1 to lock the sealing baffle 4 and prevent accidental opening. When it is necessary to open, press the locking rod to compress the spring, so that it is disengaged from the positioning hole. After unlocking, the pull seat drives the baffle to open under the action of the fastening spring. The operation is convenient and the positioning is accurate.

[0040] Preferably, in any of the above schemes, the heat sink assembly 7 includes a heat-conducting plate 71 with a large contact area for heat dissipation and a plurality of heat dissipation fins 72 for multi-point heat dissipation. The heat-conducting plate 71 is located inside the insulation sleeve 2, and a plurality of heat dissipation fins 72 that penetrate the insulation sleeve 2 and the monitoring shell 1 are fixedly installed at one end of the heat-conducting plate 71.

[0041] The above technical solution is adopted: the heat-conducting plate 71 (copper-aluminum composite material) is attached to the monitoring host inside the insulation sleeve 2 to quickly absorb the heat of the equipment operation. One end of its heat dissipation fin 72 penetrates through the insulation sleeve and the monitoring shell, and conducts heat out through air convection. The use of unidirectional heat-conducting material allows only internal heat to be transferred to the outside, preventing external high temperature from entering the insulation sleeve and ensuring that the host operates in the optimal temperature range.

[0042] Preferably, the top of the protective net 8 is provided with a magnetic piece 9 that provides magnetic attraction, and the protective net 8 is fixed to the bottom of the monitoring housing 1 by magnetic attraction through the magnetic piece 9. The bottom of the protective net 8 is provided with several ventilation slots.

[0043] The above technical solution is adopted: the top magnet 9 (neodymium iron boron material) of the protective net 8 (stainless steel wire mesh) is attached to the bottom of the monitoring shell 1, which can be disassembled without tools, making it easy to clean the dust on the mesh surface. The bottom ventilation slots ensure air circulation, which does not affect heat dissipation while blocking foreign objects of particle size and preventing the heat dissipation fins from being blocked.

[0044] The working principle of this microgrid protection and monitoring device is as follows:

[0045] When the equipment is working, the monitoring shell 1 and the insulation sleeve 2 form an internal and external isolation. The insulation sleeve 2 blocks the external high temperature. The sealing baffle 4 is pressed against the waterproof sealing gasket 3 by the spring force of the pulling adjustment seat 5. It is locked in conjunction with the positioning block 6 to achieve waterproof and dustproof. The internal heat is absorbed by the heat conduction fins 71 of the heat sink assembly 7 and discharged by the heat dissipation fins 72. The one-way heat conduction characteristic prevents the intrusion of external heat. The protective net 8 blocks dust while ensuring ventilation. When maintenance is required, press the positioning block to unlock and pull the baffle to open. After maintenance, close the baffle to automatically lock and seal. It is suitable for stable operation in complex environments throughout the process.

[0046] Compared with the prior art, the present invention has the following advantages:

[0047] 1. An insulating sleeve 2 is installed inside the casing of the equipment used for the protection and monitoring of the microgrid to isolate the internal and external temperatures. A sealing baffle 4 that can be opened and closed is installed on one side of the equipment casing. The waterproof sealing gasket 3 at one end of the sealing baffle 4 and the insulating sleeve 2 form an insulating and waterproof inner space inside the equipment casing, isolating the equipment from the outside and preventing the external environment from affecting the inside of the equipment. At the same time, the sealing baffle 4 is tightened and fixed by the pull adjustment seat 5 and the positioning block 6 to ensure the sealing of the equipment and improve the stability of the equipment in complex environments.

[0048] 2. A unidirectional heat sink group 7 is installed inside the equipment for protecting and monitoring the microgrid, which penetrates the insulation sleeve 2 and the monitoring shell 1. The unidirectional heat dissipation of the heat sink group 7 is used to dissipate the heat inside the equipment to the outside while preventing the outside temperature from being conducted into the equipment, thus ensuring the stability of the equipment operation.

Claims

1. A microgrid protection and monitoring device, comprising a monitoring housing (1) for protecting a data monitoring host for protecting and monitoring a microgrid, characterized in that: The monitoring housing (1) is provided with a heat insulation sleeve (2) for high-temperature protection. One end of the heat insulation sleeve is provided with a waterproof sealing gasket (3) for sealing and waterproofing. One end of the waterproof sealing gasket (3) is fixedly installed with a sealing baffle (4) for sealing the monitoring housing. One end of the sealing baffle (4) is fixedly installed with a pull adjustment seat (5) for fastening. The other end of the pull adjustment seat (5) is fixedly installed with a positioning block (6) for locking. The bottom of the monitoring housing (1) is provided with a heat sink assembly (7) made of unidirectional heat conduction material. One side of the heat sink assembly (7) is provided with a protective net (8) for protecting it.

2. The microgrid protection and monitoring device as described in claim 1, characterized in that: The bottom of the monitoring housing (1) is provided with a heat dissipation fixing groove for fixing the heat sink assembly (7), the bottom of the insulation sleeve (2) is provided with a through groove that passes through the heat sink assembly (7), and one end of the insulation sleeve (2) is provided with a sealing groove for engaging and securing the waterproof sealing gasket (3).

3. The microgrid protection and monitoring device as described in claim 2, characterized in that: The size of the waterproof sealing gasket (3) is smaller than that of the sealing baffle (4). One end of the waterproof sealing gasket (3) is provided with a sealing ring platform that engages with the heat insulation sleeve (2). Both ends of the sealing baffle (4) are provided with connecting grooves to accommodate the pull adjustment seat (5).

4. The microgrid protection and monitoring device as described in claim 3, characterized in that: The pull adjustment seat (5) includes a fastening spring (51) that provides tension and a pull seat (52) that provides support. The fastening spring (51) is fixedly installed inside the monitoring housing (1), and one end of the fastening spring (51) is fixedly installed with the pull seat (52) that moves inside the monitoring housing (1).

5. A microgrid protection and monitoring device as described in claim 4, characterized in that: The positioning block (6) includes a positioning spring (61) for support and a locking rod (62) for engaging and positioning the pull seat (52). The positioning spring (61) is fixedly installed inside the pull seat (52), and one end of the positioning spring (61) is fixedly installed with a locking rod (62) that moves inside the pull seat (52).

6. The microgrid protection and monitoring device as described in claim 5, characterized in that: The heat sink assembly (7) includes a heat-conducting plate (71) with a large contact heat dissipation area and several heat dissipation fins (72) for multi-point heat dissipation. The heat-conducting plate (71) is located inside the insulation sleeve (2). Several heat dissipation fins (72) that penetrate the insulation sleeve (2) and the monitoring shell (1) are fixedly installed at one end of the heat-conducting plate (71).

7. A microgrid protection and monitoring device as described in claim 6, characterized in that: The top of the protective net (8) is provided with a magnetic piece (9) that provides magnetic attraction. The protective net (8) is attached to the bottom of the monitoring shell (1) by the magnetic piece (9). The bottom of the protective net (8) is provided with several ventilation slots.

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