CN218831158U - Power energy storage equipment with good heat dissipation performance - Google Patents
Power energy storage equipment with good heat dissipation performance Download PDFInfo
- Publication number
- CN218831158U CN218831158U CN202320068389.8U CN202320068389U CN218831158U CN 218831158 U CN218831158 U CN 218831158U CN 202320068389 U CN202320068389 U CN 202320068389U CN 218831158 U CN218831158 U CN 218831158U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- mounting panel
- accommodation space
- energy storage
- heat dissipation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The application relates to a power energy storage device with good heat dissipation performance, and relates to the technical field of power energy storage. Including power supply housing, fan assembly, the UPS circuit board, the dc-to-ac converter circuit board, BMS circuit board and energy storage battery, be formed with first accommodation space in the power supply housing, the accommodation space has set gradually first mounting panel and second mounting panel from top to bottom, form the second accommodation space between first mounting panel and the second mounting panel, the second mounting panel forms the third accommodation space with power supply housing, energy storage battery installs in the third accommodation space, fan assembly is located the second accommodation space, the UPS circuit board is installed at the second mounting panel with the dc-to-ac converter circuit board, the BMS circuit board is installed at first mounting panel, inlet port and venthole have been seted up respectively to the relative both sides wall in second accommodation space, the poor problem of power energy storage equipment thermal diffusivity has been alleviated.
Description
Technical Field
The utility model belongs to the technical field of the power energy storage technique and specifically relates to a good heat dissipation's power energy storage equipment is related to.
Background
In daily life, when the power energy storage device is used, the energy storage power supply and the circuit board in the power energy storage device can change part of energy into heat energy to be dissipated into air.
In power energy storage equipment, calorific capacity is the biggest mainly in the circuit board, and when most current power energy storage equipment was carrying out inside heat dissipation, mostly only install radiator fan or heat dissipation frame additional in power energy storage equipment and come the whole heat dissipation of power energy storage equipment, but so heat dissipation, because the heat dissipation space too can lead to the radiating effect not good greatly.
In view of the above-mentioned related art, there is a problem that the heat dissipation of the power energy storage device is poor.
SUMMERY OF THE UTILITY MODEL
In order to alleviate the poor problem of power energy storage equipment thermal diffusivity, this application provides a good heat dissipation's power energy storage equipment.
The application provides a good heat dissipation's power energy storage equipment adopts following technical scheme: a power supply energy storage device with good heat dissipation performance comprises a power supply shell, a fan assembly, a UPS circuit board, an inverter circuit board, a BMS circuit board and an energy storage battery, wherein a first accommodating space is formed in the power supply shell, a first mounting plate and a second mounting plate are sequentially arranged in the accommodating space, a second accommodating space is formed between the first mounting plate and the second mounting plate, a third accommodating space is formed between the second mounting plate and the power supply shell, the energy storage battery is mounted on the bottom wall of the third accommodating space, the fan assembly is mounted in the second accommodating space, the UPS circuit board and the inverter circuit board are mounted on the second mounting plate, the BMS circuit board is mounted on the first mounting plate, the UPS circuit board, the inverter circuit board and the face of an electronic element mounted on the BMS circuit board face towards the second accommodating space, air inlet holes and air outlet holes are respectively formed in two opposite side walls of the second accommodating space, and the fan assembly comprises an exhaust fan and an air inlet fan, wherein the exhaust fan is used for exhausting hot air generated in the second accommodating space from the air outlet holes and used for sucking the air into the second accommodating space through the air inlet holes.
Through adopting above-mentioned technical scheme, because inverter circuit board, UPS circuit board and BMS circuit board calorific capacity are the biggest, inverter circuit board, the heat that UPS circuit board and BMS circuit board produced is most concentrated in the second accommodation space, start fan assembly, the fan that admits air rotates, inhale the second accommodation space with the air in the external world through the inlet port, come to concentrate the cooling to the heat that inverter circuit board, UPS circuit board and BMS circuit board produced, the air discharge fan rotates, the steam that produces inverter circuit board, UPS circuit board and BMS circuit board discharges the external world in order to realize the cooling through the venthole. The circulation of the inside and the external world of power energy storage equipment has been realized in above operation, has improved the radiating effect, has alleviated the poor problem of power energy storage equipment thermal diffusivity.
Optionally, the exhaust fan is provided with a plurality of towards the gas outlet hole is evenly arranged.
Through adopting above-mentioned technical scheme, the air discharge fan is provided with a plurality ofly towards venthole align to grid, and the air discharge fan during simultaneous operation can discharge the heat that produces in more second accommodation spaces, has improved power energy storage equipment's radiating efficiency.
Optionally, the first mounting panel is close to one side of inlet port and the mounting panel is close to one side of venthole is provided with the fixed plate, the air discharge fan with be close to venthole one side fixed plate bolted connection, the air inlet fan with be close to inlet port one side fixed plate bolted connection.
Through adopting above-mentioned technical scheme, the air discharge fan with be close to the fixed plate bolted connection of venthole one side, the air inlet fan with be close to the fixed plate bolted connection of inlet port one side, when radiator fan used the trouble for a long time, be convenient for dismantle and change radiator fan.
Optionally, the UPS circuit board and the electronic component on the inverter circuit board are arranged on the UPS circuit board and the inverter circuit board to form a heat dissipation air duct, an inlet of the heat dissipation air duct is located on one side of the air inlet, and an outlet of the heat dissipation air duct is located on one side of the air outlet.
By adopting the technical scheme, the external air enters from the air inlet fan, the electronic elements are arranged to form the heat dissipation air channel, when the external air can pass through the heat dissipation air channel, the external air can fully cool each electronic element, and the heat generated by each electronic element can be dissipated to the heat dissipation air channel and then discharged through the air outlet hole by the air exhaust fan, so that the overall heat dissipation efficiency of the power energy storage device is improved.
Optionally, a first through groove is formed in the first mounting plate, bolt posts are arranged around the first through groove, the BMS circuit board is in bolt fit with the bolt posts, and a gap is formed between the BMS circuit board and the first mounting plate.
Through adopting above-mentioned technical scheme, BMS circuit board and the bolt stud cooperation of setting on first mounting panel make to form the space between BMS circuit board and the first mounting panel, when the external air enters through the inlet port, the external air not only can pass through from the second accommodation space, can also pass through from the space that forms between first mounting panel and the BMS circuit board. The in-process that the external air passed through from the space that forms between the BMS circuit board, because the space is little, air flow rate is fast, can accelerate the heat dissipation of BMS circuit board.
Optionally, a second through groove used for communicating the third accommodating space with the second accommodating space is formed in the second mounting plate.
Through adopting above-mentioned technical scheme, because the in-process of energy storage battery work also can produce the heat, the second leads to groove and communicates second accommodation space and third accommodation space, and the heat that energy storage battery work produced like this can lead to the groove through the second and enter into in the second accommodation space to the external world is discharged, to the heat dissipation that realizes energy storage battery.
Optionally, the power supply shell is a cuboid as a whole, and the air inlet hole and the air outlet hole are respectively formed in two opposite side walls with the shortest distance from the power supply shell.
By adopting the technical scheme, the air inlet hole and the air outlet hole are respectively arranged on the two opposite side walls with the shortest distance from the power supply shell, so that the heat dissipation air channel is short and smooth, the heat dissipation efficiency is ensured, the wind resistance is small, and the wind noise is small.
Optionally, a lifting handle convenient to extract is arranged at the top of the power supply shell.
Through adopting above-mentioned technical scheme, power casing top sets up the handle of carrying that draws, is convenient for draw the removal to power energy storage equipment.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the utility model discloses a heat dissipation wind channel, the heat that UPS circuit board and BMS circuit board produced concentrates on the second accommodation space, outside air enters into in the second accommodation space under the effect of the fan that admits air, to the inverter circuit board, UPS circuit board and BMS circuit board cool down, discharge from the air discharge fan at last, outside air can pass the heat dissipation wind channel of arranging the formation by the electronic component on inverter circuit board and the UPS circuit board at the in-process of the inside cooling of power casing, when outside air can pass from the heat dissipation wind channel, can make outside air realize abundant cooling to every electronic component, and the heat that every electronic component produced also can give off on the heat dissipation wind channel after discharge through the venthole by the air discharge fan, the holistic radiating efficiency of power energy storage equipment has been improved, the poor problem of power energy storage equipment thermal diffusivity has been alleviated.
2. The heat generated by the energy storage battery enters the second accommodating space through the second through groove and is finally brought to the outside, and the heat dissipation of the energy storage battery is realized.
3. When the external air entered through the inlet port, the external air not only can pass through from the second accommodation space, but also can pass through from the space that forms between first mounting panel and the BMS circuit board. The in-process that the external air passed through from the space that forms between the BMS circuit board, because the space is little, air flow rate is fast, can accelerate the heat dissipation of BMS circuit board.
Drawings
Fig. 1 is a schematic overall structure diagram of a power energy storage device with good heat dissipation performance in an embodiment of the present application.
Fig. 2 is a schematic diagram of an internal structure of a power energy storage device with good heat dissipation performance in an embodiment of the present application.
Fig. 3 is an exploded view of the internal structure of a power storage device with good heat dissipation in the embodiment of the present application.
Description of reference numerals: 1. a power supply housing; 11. a first mounting plate; 111. a fixing plate; 112. a first through groove; 113. a bolt column; 12. a second mounting plate; 121. a second through groove; 13. an air inlet; 14. an air outlet; 15. connecting columns; 16. lifting the handle; 2. a fan assembly; 21. an exhaust fan; 22. an air inlet fan; 3. a UPS circuit board; 4. an inverter circuit board; 41. an electronic component; 411. a heat dissipation air duct; 5. a BMS circuit board; 6. an energy storage battery.
Detailed Description
The present application is described in further detail below with reference to the attached drawing figures.
The embodiment of the application discloses good heat dissipation's power energy storage equipment.
Referring to fig. 1 and 2, a power energy storage device with good heat dissipation performance includes a power housing 1, a fan assembly 2, a UPS circuit board 3, an inverter circuit board 4, a BMS circuit board 5, and an energy storage battery 6, a first accommodating space is formed in the power housing 1, the accommodating space is sequentially provided with a first mounting plate 11 and a second mounting plate 12 from top to bottom, a second accommodating space is formed between the first mounting plate 11 and the second mounting plate 12, a third accommodating space is formed between the second mounting plate 12 and the power housing 1, the energy storage battery 6 is installed in the third accommodating space, the fan assembly 2 is located in the second accommodating space, the UPS circuit board 3 and the inverter circuit board 4 are installed on the second mounting plate 12, the BMS circuit board 5 is installed on the first mounting plate 11, the UPS circuit board 3, the inverter circuit board 4, and the BMS circuit board 5 are welded with one side of an electronic component 41 facing the second accommodating space, and the second accommodating space is relatively provided with two side walls 13 and an air outlet 14. The fan assembly 2 includes an exhaust fan 21 for exhausting hot air generated in the second accommodating space from the air outlet hole 14 and an intake fan 22 for sucking external air into the second accommodating space through the air inlet hole 13. Two lifting handles 16 are fixed on the top of the power supply shell 1 for easy extraction.
Start fan unit 2, air inlet fan 22 rotates, and in inhaling the second accommodation space with the air of external through inlet port 13, come to concentrate the heat dissipation to the heat that inverter circuit board 4, UPS circuit board 3 and BMS circuit board 5 produced, exhaust fan 21 rotates, discharges the heat that inverter circuit board 4, UPS circuit board 3 and BMS circuit board 5 produced to the external world through venthole 14 in order to realize the cooling. Above operation has realized the inside and external circulation of power energy storage equipment, concentrates the heat dissipation to the heat that inverter circuit board 4, UPS circuit board 3 and BMS circuit board 5 produced, has improved the radiating effect, has alleviated the poor problem of power energy storage equipment thermal diffusivity.
Specifically, as shown in fig. 2 and 3, the power supply housing 1 is a cuboid, the energy storage battery 6 is fixed on the bottom wall of the power supply housing 1 through bolts, the second mounting plate 12 is mounted above the energy storage battery 6, and the second mounting plate 12 is fixedly connected around the side wall of the power supply housing 1 through bolts. The middle position of the second mounting plate 12 is provided with a second through groove 121 which is convenient for heat generated by stored energy electricity to enter the second accommodating space, and the second through groove 121 is square as a whole. The connecting columns 15 are fixed on the top wall of the power supply shell 1, the connecting columns 15 are arranged around the peripheral edge of the first mounting plate 11, and the first mounting plate 11 is fixedly connected with the bottoms of the connecting columns 15 through bolts.
Referring to fig. 2, the inverter circuit board 4 and the UPS circuit board 3 are mounted on the upper surface of the second mounting plate 12, the peripheries of the inverter circuit board 4 and the UPS circuit board 3 are both fixedly connected to the second mounting plate 12 by bolts, and a gap is left between the inverter circuit board 4 and the UPS circuit board 3 by the bolt support.
Referring to fig. 2 and 3, a first through groove 112 is formed in the middle of the first mounting plate 11, the first through groove 112 is square as a whole, a bolt column 113 is fixed to the upper surface of the first mounting plate 11, the bolt column 113 is arranged at four corners of the first through groove 112, the BMS circuit board 5 is fixed to the first through groove 112 through bolt fitting with the bolt column 113, and a gap is formed between the BMS circuit board 5 and the first through groove 112.
Referring to fig. 1 and 2, since the electronic components 41 on the UPS circuit board 3, the inverter circuit board 4, and the BMS circuit board 5 are the main heat sources of the power storage device, a large amount of heat is generated during operation, if the distance between the air inlet 13 and the air outlet 14 is too long, when the external air just enters from the air inlet 13, the heat dissipation effect on the place where the air inlet 13 enters is high, and the heat dissipation effect on the place where the air outlet 14 is close to is low due to temperature rise in the process that the external air continues to move toward the air outlet 14, the air inlet 13 and the air outlet 14 are respectively arranged on the two opposite side walls of the power housing 1 with the shortest distance, and the air inlet 13 and the air outlet 14 are located at the height of the second accommodating space. The air inlet hole 13 and the air outlet hole 14 are arranged opposite to the second accommodating space. In order to improve the heat dissipation efficiency, the air inlet holes 13 and the air outlet holes 14 are formed in dense square areas, and the side walls of the second accommodating space are fully paved in the square areas.
Referring to fig. 1, fig. 2 and fig. 3, a fixing plate 111 for fixing the fan assembly 2 is disposed on one side of the first mounting plate 11 close to the side of the power supply housing 1 with the side wall of the air inlet 13 and one side of the power supply housing 1 with the side wall of the air outlet 14, so that the wind generated by the fan assembly 2 fixed on the fixing plate 111 can be directly opposite to the side wall of the power supply housing 1, thereby improving the heat dissipation efficiency, each fixing plate 111 is perpendicular to the first mounting plate 11, and one side of the power supply housing 1 with the side wall of the air inlet 13 and one side of the power supply housing 1 with the side wall of the air outlet 14 are parallel.
Referring to fig. 1, 2 and 3, the exhaust fan 21 is bolted to a fixing plate 111 near the side wall of the power supply casing 1 where the air outlet 14 is formed. The air inlet fan 22 is fixed on a fixing plate 111 close to the side wall of the power supply housing 1 with the air inlet 13. Exhaust fan 21 and air inlet fan 22 set up relatively, air inlet fan 22 is from the external air intake to UPS circuit board 3, electronic component 41 on inverter circuit board 4 and the BMS circuit board 5 cools down, exhaust fan 21 is again with UPS circuit board 3, the heat that electronic component 41 on inverter circuit board 4 and the BMS circuit board 5 produced is discharged to the external world, the circulation of air has been realized, and exhaust fan 21 and air inlet fan 22 set up relatively, can reach concentrated radiating effect, further improvement power energy storage equipment's radiating efficiency. In order to discharge more heat generated inside the power supply housing 1 and improve the heat dissipation efficiency of the power supply energy storage device when the power supply energy storage device works, three exhaust fans 21 and three fixing plates 111 for mounting the exhaust fans 21 are uniformly arranged on one side of the first mounting plate 11 facing the side wall of the power supply housing 1, where the air outlet 14 is formed.
Referring to fig. 1 and 2, the electronic components 41 soldered on the UPS circuit board 3 and the inverter circuit board 4 are sequentially arranged on the UPS circuit board 3 and the inverter circuit board 4 to form a plurality of heat dissipating air ducts 411, wherein inlets of the heat dissipating air ducts 411 are located at one side of the air inlet 13, and outlets of the heat dissipating air ducts 411 are located at one side of the air outlet 14.
The power energy storage equipment with good heat dissipation performance in the embodiment of the application has the implementation principle that: when the power energy storage device works, the exhaust fan 21 and the intake fan 22 start to operate, the electronic components 41 on the inverter circuit board 4, the UPS circuit board 3 and the BMS circuit board 5 start to generate heat, most of the generated heat is collected in the second accommodating space, the outside air enters the second accommodating space through the air inlet 13 under the action of the intake fan 22 to perform centralized heat dissipation on the inverter circuit board 4, the UPS circuit board 3 and the BMS circuit board 5, and finally is exhausted from the air outlet 14 through the exhaust fan 21, the outside air can pass through the heat dissipation air duct 411 formed by the arrangement of the electronic components 41 on the inverter circuit board 4 and the UPS circuit board 3 in the process of cooling the inside of the power supply housing 1, when the outside air can pass through the heat dissipation air duct 411, the outside air can fully cool each electronic component 41, and the heat generated by each electronic component 41 can also be exhausted through the air outlet 14 after reaching the heat dissipation air duct 411, so that the overall heat dissipation efficiency of the power energy storage device is improved, and the problem of poor heat dissipation of the power energy storage device is solved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a good heat dissipation's power energy storage equipment which characterized in that: including power supply housing (1), fan unit (2), UPS circuit board (3), inverter circuit board (4), BMS circuit board (5) and energy storage battery (6), be formed with first accommodation space in power supply housing (1), the accommodation space has set gradually first mounting panel (11) and second mounting panel (12), first mounting panel (11) with form the second accommodation space between second mounting panel (12), second mounting panel (12) with power supply housing (1) forms the third accommodation space, energy storage battery (6) are installed third accommodation space diapire, fan unit (2) are installed in the second accommodation space, UPS circuit board (3) with inverter circuit board (4) are installed second mounting panel (12), BMS circuit board (5) are installed first mounting panel (11), UPS circuit board (3), inverter circuit board (4) with the one side wall of BMS circuit board (5) installation electronic component (41) all faces the second accommodation space, relative air inlet hole (13) and air outlet hole (14) have been seted up respectively to the second accommodation space (14) be used for fan unit (14) to produce the air outlet hole (14) from second air outlet hole (14) the second accommodation space (14) and air outlet hole (14) are used for the air outlet hole (14) to the second accommodation space An air supply fan (22) in the compartment.
2. The power storage device of claim 1, wherein: the exhaust fans (21) are uniformly arranged towards the air outlet holes (14).
3. The power storage device of claim 1, wherein: first mounting panel (11) are close to one side of inlet port (13) and the mounting panel is close to one side of venthole (14) is provided with fixed plate (111), air discharge fan (21) with be close to venthole (14) one side fixed plate (111) bolted connection, air discharge fan (22) with be close to inlet port (13) one side fixed plate (111) bolted connection.
4. A heat dissipating power storage device in accordance with claim 1, wherein: UPS circuit board (3) with electronic component (41) on the inverter circuit board (4) are in UPS circuit board (3) with arrange on inverter circuit board (4) and form heat dissipation wind channel (411), heat dissipation wind channel (411) import is located one side of inlet port (13), the export in heat dissipation wind channel (411) is located one side of venthole (14).
5. The power storage device of claim 1, wherein: seted up first logical groove (112) on first mounting panel (11), around first logical groove (112) are provided with bolt post (113) all around, BMS circuit board (5) with bolt post (113) bolt fit, BMS circuit board (5) with be formed with the space between first mounting panel (11).
6. A heat dissipating power storage device in accordance with claim 1, wherein: and a second through groove (121) for communicating the third accommodating space with the second accommodating space is formed in the second mounting plate (12).
7. A heat dissipating power storage device in accordance with claim 1, wherein: the power supply shell (1) is integrally a cuboid, and the air inlet holes (13) and the air outlet holes (14) are respectively formed in two opposite side walls with the shortest distance from the power supply shell (1).
8. The power storage device of claim 1, wherein: the top of the power supply shell (1) is provided with a lifting handle (16) convenient to extract.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320068389.8U CN218831158U (en) | 2023-01-10 | 2023-01-10 | Power energy storage equipment with good heat dissipation performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320068389.8U CN218831158U (en) | 2023-01-10 | 2023-01-10 | Power energy storage equipment with good heat dissipation performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218831158U true CN218831158U (en) | 2023-04-07 |
Family
ID=87262578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320068389.8U Active CN218831158U (en) | 2023-01-10 | 2023-01-10 | Power energy storage equipment with good heat dissipation performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218831158U (en) |
-
2023
- 2023-01-10 CN CN202320068389.8U patent/CN218831158U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108448017B (en) | Control method of battery box of electric vehicle | |
| CN203180757U (en) | Radiation device for cutterhead frequency conversion cabinet of shield tunneling machine | |
| CN210840503U (en) | Improved heat dissipation device for power controller | |
| CN201682702U (en) | Direct ventilation heat radiation cabinet | |
| CN201813311U (en) | Megawatt wind energy converter device with air-cooled radiating structure | |
| CN210509384U (en) | Low-noise container type diesel generator set for data center | |
| CN218831158U (en) | Power energy storage equipment with good heat dissipation performance | |
| CN215898271U (en) | Charger heat dissipation device | |
| CN206820091U (en) | Solar telephone battery water cooling, the integral heat abstractor of air cooling | |
| CN212541264U (en) | Heat radiator for computer power module | |
| CN215073490U (en) | Photovoltaic inverter | |
| CN214479625U (en) | Active power filter structure | |
| CN211809137U (en) | Charging station wisdom cloud platform based on big data | |
| CN211378618U (en) | Fin structure for air-cooled radiator | |
| CN212626574U (en) | Heat radiator for electronic and electrical equipment | |
| CN210072533U (en) | Drainage heat dissipation device for standard case | |
| CN218109636U (en) | Electric welding machine shell with good heat dissipation performance | |
| CN214125027U (en) | Forced heat-extraction cooling device for synchronous motor | |
| CN219107128U (en) | UPS uninterrupted power source device | |
| CN218449104U (en) | Air cooling screen cabinet for heat dissipation of multiple heat sources | |
| CN209822837U (en) | Lithium battery heat radiation structure | |
| CN216278305U (en) | Radiating device of wind driven generator unit | |
| CN220123302U (en) | Mobile power supply inverter with air duct heat radiation structure | |
| CN214164744U (en) | New energy automobile battery package bottom layer board | |
| CN215582429U (en) | Photovoltaic inverter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |