CN223745144U - Photovoltaic micro-inverse grid-connected anti-reflux mechanism - Google Patents
Photovoltaic micro-inverse grid-connected anti-reflux mechanismInfo
- Publication number
- CN223745144U CN223745144U CN202520225151.0U CN202520225151U CN223745144U CN 223745144 U CN223745144 U CN 223745144U CN 202520225151 U CN202520225151 U CN 202520225151U CN 223745144 U CN223745144 U CN 223745144U
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- China
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- cabinet body
- liquid cooling
- grid
- cooling
- photovoltaic micro
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model relates to an anti-reflux mechanism for a photovoltaic micro-inversion grid-connected system, which belongs to the technical field of photovoltaic power generation grid-connected systems and comprises a cabinet body, a liquid cooling mechanism, a mounting mechanism, an air supply device, a drying bin and a PLC (programmable logic controller), wherein the cabinet body is provided with a vent hole and a radiating hole, the internal mounting mechanism is used for realizing efficient heat radiation through a liquid cooling groove and a circulating pump, an L-shaped fixed block and a spring are adopted by a clamping mechanism, the installation and the maintenance of an inverter are facilitated, a temperature and humidity sensor is arranged in the drying bin, the internal environment of the cabinet is regulated by matching with the air supply device, the PLC is used for realizing comprehensive control and coordinated operation, and the system stability and the service life are improved through the design of multiple heat radiation and anti-reflux, so that the anti-reflux mechanism is suitable for the photovoltaic micro-inversion grid-connected system.
Description
Technical Field
The utility model belongs to the technical field of photovoltaic power generation grid-connected systems, and particularly relates to an anti-reflux mechanism for photovoltaic micro-inversion grid-connected.
Background
The photovoltaic power generation is widely applied as an efficient and environment-friendly energy utilization mode, and the photovoltaic micro-inversion grid-connected system is used as an important component of the photovoltaic power generation, and can convert direct current generated by a solar panel into alternating current matched with a power grid, so that stable power supply to the power grid is realized. In a photovoltaic micro-inversion grid-connected system, when the electric energy generated by a solar panel exceeds the load demand, the redundant electric energy reversely flows into a power grid through an inverter, and the reverse flow phenomenon not only can lead to the fluctuation of the voltage of the power grid and influence the stable operation of the power grid, but also can damage power grid equipment and user equipment, in addition, the reverse flow phenomenon can lead to the harmonic pollution of the power grid and reduce the electric energy quality. Moreover, photovoltaic micro-inverters can generate a large amount of heat during operation, particularly in high-temperature environments, the heat accumulation can cause the internal temperature of the inverter to rise, and the performance and the service life of the inverter can be influenced by excessive temperature, and even equipment faults can be caused.
The utility model provides a photovoltaic is little contrary for being incorporated into power networks anti-reflux mechanism of bulletin number CN220915248U among the prior art, this mechanism overcomes photovoltaic dc-to-ac converter and produces a large amount of heat's problem in outdoor operation, through setting up installing room and stock solution storehouse in the box inside, utilizes the coolant circulation in the cooling tank, the air-out pump carries air conditioning and radiator unit's air flow, realizes the multiple heat dissipation protection to the dc-to-ac converter to be equipped with temperature sensor and control circuit in order to intelligent regulation and control heat dissipation process. However, the integration and flexibility of the heat dissipation system are insufficient, the overall control of the whole heat dissipation and anti-backflow system is lacking, so that the heat dissipation efficiency and the anti-backflow effect of the heat dissipation system cannot be dynamically optimized and adjusted according to actual operation conditions, and the dual requirements of efficient heat dissipation and accurate anti-backflow of the inverter under complex environment conditions are difficult to meet.
Disclosure of utility model
The utility model solves the technical problem of overcoming the defects in the prior art and providing the anti-countercurrent mechanism for the photovoltaic micro-inversion grid connection.
The technical scheme adopted by the utility model is as follows:
The utility model discloses a photovoltaic micro-inverse grid-connected anti-reflux mechanism, which comprises a cabinet body, wherein the cabinet body is hinged with a cabinet door, a handle is arranged on the cabinet door, ventilation holes are formed in two sides of the cabinet body, a radiating hole is formed in the back side of the cabinet body, a mounting mechanism is arranged in the cabinet body, liquid cooling mechanisms are arranged on two sides of the mounting mechanism, a partition plate is arranged above the mounting mechanism and the liquid cooling mechanisms, an air supply device and a drying bin are arranged above the partition plate, the air supply device is arranged on inner walls of two sides of the cabinet body, and a drying device is arranged on the inner side of the top of the cabinet body.
Drying holes are formed in two sides of the drying bin, and a temperature and humidity sensor is arranged in the drying bin.
The inside of liquid cooling mechanism is equipped with refrigerating plant, and one side that liquid cooling mechanism is close to installation mechanism is equipped with coolant outlet and coolant inlet, and coolant outlet locates the below of coolant inlet, and coolant outlet is connected with the circulating pump.
The installation mechanism comprises an installation shell, a plurality of clamping mechanisms are arranged in the installation mechanism, and an inverter is installed on the inner side of each clamping mechanism.
The clamping mechanism comprises an L-shaped fixed block, the back side of the fixed block is provided with supporting blocks used in pairs, and one end, far away from the fixed block, of each supporting block is provided with a spring.
The inside of installation shell is equipped with a plurality of mounting holes, and the inside of mounting hole is located to supporting shoe and spring.
The inside liquid cooling groove that is equipped with of casing of installation shell is equipped with S type liquid cooling pipeline in the liquid cooling groove, and circulating pump is connected to the one end of liquid cooling pipeline, and the other end is the liquid outlet, and the liquid outlet is connected the coolant liquid entry on the liquid cooling mechanism.
The air conditioner further comprises a PLC controller, wherein the PLC controller is electrically connected with the air supply device, the drying device, the temperature and humidity sensor, the refrigerating device and the circulating pump.
The utility model has the following beneficial effects:
1. The hinged structure of the cabinet body and the cabinet door and the handle are convenient for operators to maintain and overhaul equipment, meanwhile, the integral structure of the cabinet body enhances the protection performance of the equipment, the interference of the external environment can be effectively resisted, the ventilation holes on the two sides of the cabinet body and the radiating holes on the back side can effectively promote air circulation, heat in the cabinet body is timely discharged, and the equipment is prevented from being overheated due to heat accumulation.
2. The liquid cooling mechanism is tightly combined with the mounting mechanism, so that the space utilization rate is improved, the structural stability of the whole system is enhanced, and the fault risk caused by equipment vibration or external force impact is reduced.
3. The clamping mechanism adopts the L-shaped fixed block, the supporting block and the spring, can be used for quickly fixing and detaching the inverter, simplifies the installation and maintenance processes, reduces the maintenance cost, can adapt to inverters with different sizes, has good universality and adaptability, and meanwhile, the elastic support of the spring can be used for effectively buffering the vibration generated by the inverter in the operation process, so that the operation stability of equipment is improved.
4. The combination of air supply arrangement and dry storehouse can effectively adjust the internal humiture environment of cabinet, and air supply arrangement passes through the supplementary heat dissipation of air flow, and the internal humidity condition of humiture sensor in the dry storehouse can real-time supervision cabinet, ensures that equipment operates under suitable environment, avoids the equipment trouble because of the high humidity leads to.
5. The PLC is electrically connected with the air supply device, the drying device, the temperature and humidity sensor, the refrigerating device and the circulating pump, intelligent control of the whole anti-backflow mechanism is achieved, and through preset control logic, the PLC can automatically adjust the running state of each device according to real-time monitoring data, and the system is ensured to run under the optimal working condition.
Drawings
FIG. 1 is a schematic front view of the present utility model;
FIG. 2 is a schematic back view of the present utility model;
FIG. 3 is a schematic view of the internal structure of the present utility model;
FIG. 4 is a schematic view of the internal structure of the present utility model;
FIG. 5 is a schematic diagram of a drying bin;
FIG. 6 is a schematic view of the internal structure of the present utility model;
FIG. 7 is a schematic view of a clamping mechanism;
FIG. 8 is a schematic view of a mounting mechanism;
FIG. 9 is a schematic view of a mounting mechanism in section;
FIG. 10 is a schematic diagram of a liquid cooling mechanism;
FIG. 11 is a schematic diagram of an electrical connection according to the present utility model.
Wherein, 1, a cabinet body; 2, a cabinet door, 3, a handle, 4, a vent hole, 5, a heat dissipation hole, 6, a mounting mechanism, 7, a liquid cooling mechanism, 8, an air supply device, 9, a drying bin, 10, a drying device, 11, a drying hole, 12, a temperature and humidity sensor, 13, a refrigerating device, 14, a cooling liquid outlet, 15, a cooling liquid inlet, 16, a circulating pump, 17, a clamping mechanism, 18, an inverter, 19, a fixed block, 20, a supporting block, 21, a spring, 22, a mounting hole, 23, a liquid cooling groove, 24, a liquid cooling pipeline, 25 and a liquid outlet.
Detailed Description
As shown in figures 1 to 11, the photovoltaic micro-inverse grid-connected anti-reflux mechanism comprises a cabinet body 1, wherein the cabinet body 1 is hinged with a cabinet door 2, a handle 3 is arranged on the cabinet door 2, ventilation holes 4 are formed in two sides of the cabinet body 1, a heat dissipation hole 5 is formed in the back side of the cabinet body 1, a mounting mechanism 6 is arranged in the cabinet body 1, liquid cooling mechanisms 7 are arranged on two sides of the mounting mechanism 6, a partition plate is arranged above the mounting mechanism 6 and the liquid cooling mechanisms 7, an air supply device 8 and a drying bin 9 are arranged above the partition plate, the air supply device 8 is arranged on inner walls of two sides of the cabinet body 1, and a drying device 10 is arranged on the inner side of the top of the cabinet body 1.
Drying holes 11 are formed in two sides of the drying bin 9, and a temperature and humidity sensor 12 is arranged in the drying bin 9.
The inside of the liquid cooling mechanism 7 is provided with a refrigerating device 13, one side of the liquid cooling mechanism 7 close to the mounting mechanism 6 is provided with a cooling liquid outlet 14 and a cooling liquid inlet 15, the cooling liquid outlet 14 is arranged below the cooling liquid inlet 15, and the cooling liquid outlet 14 is connected with a circulating pump 16.
The mounting mechanism 6 comprises a mounting shell, a plurality of clamping mechanisms 17 are arranged in the mounting mechanism 6, and an inverter 18 is arranged on the inner side of the clamping mechanisms 17.
The clamping mechanism 17 comprises an L-shaped fixed block 19, a pair of supporting blocks 20 are arranged on the back side of the fixed block 19, and a spring 21 is arranged at one end, far away from the fixed block, of the supporting blocks 20.
The inside of the installation shell is provided with a plurality of installation holes 22, and the supporting blocks 20 and the springs 21 are arranged in the installation holes 22.
The inside liquid cooling groove 23 that is equipped with of casing of installation shell is equipped with S type liquid cooling pipeline 24 in the liquid cooling groove 23, and circulating pump 16 is connected to the one end of liquid cooling pipeline 24, and the other end is liquid outlet 25, and liquid outlet 25 connects the coolant inlet 15 on the liquid cooling mechanism 7.
The air supply device comprises an air supply device 8, a drying device 10, a temperature and humidity sensor 12, a refrigerating device 13 and a circulating pump 16.
The cabinet body 1 is made of metal materials and has good protective performance, the ventilation holes 4 are formed in two sides of the cabinet body 1, the heat dissipation holes 5 are formed in the back side of the cabinet body, the ventilation holes 4 and the heat dissipation holes 5 can effectively promote air circulation in the cabinet body, timely discharge heat and prevent equipment from overheating, the cabinet body 1 is provided with the cabinet door 2 in a hinged mode, the cabinet door 2 is provided with the handle 3, and an operator can conveniently open the cabinet door to install, maintain and overhaul the equipment.
Specifically, the cabinet body 1 is internally provided with a mounting mechanism 6, two sides of the mounting mechanism 6 are provided with liquid cooling mechanisms 7, the mounting mechanism 6 comprises a mounting shell, a plurality of clamping mechanisms 17 are arranged in the mounting shell and are used for fixing the inverter 18, the clamping mechanisms 17 are L-shaped fixing blocks 19, the back sides of the fixing blocks 19 are provided with supporting blocks 20 used in pairs, and one ends of the supporting blocks 20, far away from the fixing blocks 19, are provided with springs 21, so that the inverter 18 can be quickly fixed and detached, and meanwhile, the mounting structure is suitable for inverters of different sizes and has good universality and stability.
Specifically, a refrigerating device 13 is arranged in the liquid cooling mechanism 7, a cooling liquid outlet 14 and a cooling liquid inlet 15 are arranged on one side, close to the mounting mechanism 6, of the liquid cooling mechanism, the cooling liquid outlet 14 is connected with a circulating pump 16, a liquid cooling groove 23 is arranged in a shell of the mounting shell, an S-shaped liquid cooling pipeline 24 is arranged in the liquid cooling groove 23, one end of the liquid cooling pipeline 24 is connected with the circulating pump 16, the other end of the liquid cooling pipeline is a liquid outlet 25, the liquid outlet 25 is connected with the cooling liquid inlet 15 on the liquid cooling mechanism 7, and through the functions of the refrigerating device 13 and the circulating pump 16, cooling liquid circularly flows in the liquid cooling pipeline 24, absorbs heat generated by the inverter 18 and discharges the heat, so that efficient heat dissipation is achieved.
Specifically, a partition plate is arranged above the mounting mechanism 6 and the liquid cooling mechanism 7, an air supply device 8 and a drying bin 9 are arranged above the partition plate, the air supply device 8 is arranged on the inner walls of two sides of the cabinet body 1, heat dissipation is assisted through air flow, the temperature in the cabinet body is further reduced, drying holes 11 are formed in two sides of the drying bin 9, a temperature and humidity sensor 12 is arranged in the drying bin, the humidity condition in the cabinet body can be monitored in real time, and the temperature and humidity environment in the cabinet body can be effectively regulated through the cooperation of the air supply device 8 and the drying bin 9, so that equipment faults caused by overhigh humidity are prevented.
Specifically, a drying device 10 is arranged on the inner side of the top of the cabinet body 1 and used for drying the interior of the cabinet body in a humid environment to further ensure the running environment of equipment, and in addition, the cabinet also comprises a PLC (programmable logic controller) which is electrically connected with the air supply device 8, the drying device 10, the temperature and humidity sensor 12, the refrigerating device 13 and the circulating pump 16. Through intelligent control of the PLC controller, the running state of each device can be automatically adjusted according to real-time monitoring data, and the system is ensured to run under the optimal working condition.
Specifically, in actual operation, the inverter 18 is installed in the clamping mechanism 17 of the installation mechanism 6, the refrigerating device 13 in the liquid cooling mechanism 7 is started, the cooling liquid enters the liquid cooling pipeline 24 through the cooling liquid outlet 14 under the driving of the circulating pump 16, after absorbing heat generated by the inverter 18, the cooling liquid returns to the liquid cooling mechanism 7 from the liquid outlet 25 to complete a cycle, the air supply device 8 operates according to instructions of the PLC controller to assist in heat dissipation through air flow, the temperature and humidity sensor 12 monitors the humidity condition in the cabinet in real time, the drying device 10 is started to perform drying treatment in the cabinet when the humidity exceeds a set value, and the PLC controller automatically adjusts the operation states of the refrigerating device 13, the circulating pump 16, the air supply device 8 and the drying device 10 according to feedback signals of the sensors to ensure stable and efficient operation of the whole system.
Specifically, the air supply device 8, the drying device 10, the refrigerating device 13 and the circulating pump 16 are all arranged in pairs, under the control of the PLC controller, reasonable work distribution can be performed according to the overall situation, for example, a temperature threshold is set through the PLC controller, when a temperature signal detected by the temperature and humidity sensor 12 is lower than the set threshold, the PLC controller controls the refrigerating device 13 and the circulating pump 16 on one side to work, when a temperature signal detected by the temperature and humidity sensor 12 is higher than the set threshold, the PLC controller controls the refrigerating device 13 and the circulating pump 16 on two sides to work, and when humidity is detected, the same mode is used for controlling the air supply device 8 and the drying device 10, so that a double-layer redundancy mechanism can be provided to ensure the stable operation of equipment, and energy consumption can be saved under the corresponding situation.
Claims (8)
1. The photovoltaic micro-inverse grid-connected anti-countercurrent mechanism comprises a cabinet body (1), and is characterized in that the cabinet body (1) is hinged with a cabinet door (2), a handle (3) is arranged on the cabinet door (2), ventilation holes (4) are formed in two sides of the cabinet body (1), heat dissipation holes (5) are formed in the back side of the cabinet body (1), a mounting mechanism (6) is arranged in the cabinet body (1), liquid cooling mechanisms (7) are arranged on two sides of the mounting mechanism (6), a partition plate is arranged above the mounting mechanism (6) and the liquid cooling mechanisms (7), an air supply device (8) and a drying bin (9) are arranged above the partition plate, the air supply device (8) is arranged on the inner walls of two sides of the cabinet body (1), and a drying device (10) is arranged on the inner side of the top of the cabinet body (1).
2. The photovoltaic micro-inversion grid-connected anti-reflux mechanism according to claim 1, wherein drying holes (11) are formed in two sides of the drying bin (9), and a temperature and humidity sensor (12) is arranged in the drying bin (9).
3. The photovoltaic micro-inversion grid-connected anti-reflux mechanism according to claim 2, wherein a refrigerating device (13) is arranged in the liquid cooling mechanism (7), a cooling liquid outlet (14) and a cooling liquid inlet (15) are arranged on one side, close to the installation mechanism, of the liquid cooling mechanism (7), the cooling liquid outlet (14) is arranged below the cooling liquid inlet (15), and the cooling liquid outlet (14) is connected with a circulating pump (16).
4. The photovoltaic micro-inversion grid-connected anti-reflux mechanism according to claim 3, wherein the installation mechanism (6) comprises an installation shell, a plurality of clamping mechanisms (17) are arranged inside the installation mechanism (6), and an inverter (18) is installed on the inner side of the clamping mechanisms (17).
5. The photovoltaic micro-inverse grid-connected anti-reflux mechanism according to claim 4, wherein the clamping mechanism (17) comprises an L-shaped fixed block (19), a pair of supporting blocks (20) are arranged on the back side of the fixed block (19), and a spring (21) is arranged at one end, far away from the fixed block (19), of the supporting blocks (20).
6. The photovoltaic micro-grid-connected anti-reflux mechanism according to claim 5, wherein a plurality of mounting holes (22) are formed in the mounting housing, and the supporting blocks (20) and the springs (21) are arranged in the mounting holes (22).
7. The photovoltaic micro-inverse grid-connected anti-reflux mechanism according to claim 4, wherein a liquid cooling groove (23) is formed in the shell of the installation shell, an S-shaped liquid cooling pipeline (24) is arranged in the liquid cooling groove (23), one end of the liquid cooling pipeline (24) is connected with a circulating pump (16), the other end of the liquid cooling pipeline is provided with a liquid outlet (25), and the liquid outlet (25) is connected with a cooling liquid inlet (15) on the liquid cooling mechanism (7).
8. The photovoltaic micro-inversion grid-connected anti-reflux mechanism according to claim 3, further comprising a PLC controller, wherein the PLC controller is electrically connected with the air supply device (8), the drying device (10), the temperature and humidity sensor (12), the refrigerating device (13) and the circulating pump (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520225151.0U CN223745144U (en) | 2025-02-12 | 2025-02-12 | Photovoltaic micro-inverse grid-connected anti-reflux mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520225151.0U CN223745144U (en) | 2025-02-12 | 2025-02-12 | Photovoltaic micro-inverse grid-connected anti-reflux mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223745144U true CN223745144U (en) | 2025-12-30 |
Family
ID=98171864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520225151.0U Active CN223745144U (en) | 2025-02-12 | 2025-02-12 | Photovoltaic micro-inverse grid-connected anti-reflux mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223745144U (en) |
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2025
- 2025-02-12 CN CN202520225151.0U patent/CN223745144U/en active Active
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