CN212677069U - High-power photovoltaic group string type inverter - Google Patents
High-power photovoltaic group string type inverter Download PDFInfo
- Publication number
- CN212677069U CN212677069U CN202021814697.3U CN202021814697U CN212677069U CN 212677069 U CN212677069 U CN 212677069U CN 202021814697 U CN202021814697 U CN 202021814697U CN 212677069 U CN212677069 U CN 212677069U
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- circuit board
- printed circuit
- bin
- dissipation area
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model provides a high-power photovoltaic group string inverter, which comprises a case and a circuit component arranged in the case; the case comprises a case body, a surface cover and a rear cover, wherein the case body is divided into a front cavity and a rear cavity, the surface cover covers the front cavity to form an electrical component bin, and the rear cover covers the rear cavity to form a heat dissipation bin; the circuit assembly comprises a plurality of circuit modules, the circuit modules are arranged in the electrical appliance component bin in a laminated mode, power modules in the circuit modules are arranged on the inner layer of the electrical appliance component bin, and the electrical appliance component bin is provided with a plurality of input ports and an output port which are connected with the circuit modules; the heat dissipation cabin is internally provided with a radiator, the radiator is connected with the power module, and the heat dissipation cabin is provided with an air inlet and an air outlet so as to form an air channel in the heat dissipation cabin. The utility model is not only simple in structure, improved space utilization moreover and promoted heat dispersion and convenience.
Description
Technical Field
The utility model relates to a power equipment technical field, concretely relates to high-power photovoltaic group string dc-to-ac converter.
Background
The photovoltaic group string type inverter is mainly an inverter which converts variable direct-current voltage generated by a photovoltaic solar panel into mains frequency voltage. However, the existing photovoltaic string inverter is usually a low-power photovoltaic string inverter, and lacks a high-power photovoltaic string inverter.
At present, the internal layout of the existing high-power photovoltaic string inverter is relatively disordered, and meanwhile, due to the limitation of high heat caused by high power, the power cannot be further improved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high-power photovoltaic group string formula dc-to-ac converter, its simple structure has improved space utilization and heat dispersion, still the cost is reduced.
In a first aspect, the present invention provides a high-power photovoltaic string inverter, which is characterized by comprising a case and a circuit module disposed in the case; the case comprises a case body, a surface cover and a rear cover, wherein the case body is divided into a front cavity and a rear cavity, the surface cover covers the front cavity to form an electrical component bin, and the rear cover covers the rear cavity to form a heat dissipation bin; the circuit assembly comprises a plurality of circuit modules, the circuit modules are arranged in the electrical appliance component bin in a laminated mode, power modules in the circuit modules are arranged on the inner layer of the electrical appliance component bin, and the electrical appliance component bin is provided with a plurality of input ports and an output port which are connected with the circuit modules; the heat dissipation bin is internally provided with a radiator, the radiator is connected with the power module, and the heat dissipation bin is provided with an air inlet and an air outlet so as to form an air channel in the heat dissipation bin, so that heat in the case is taken away.
Further, the plurality of circuit modules comprise an input EMI printed circuit board, an output EMI printed circuit board, a boost printed circuit board, and an inverter printed circuit board; the boosting printed circuit board and the inversion printed circuit board are the power modules, and the boosting printed circuit board and the inversion printed circuit board are arranged side by side and are positioned in the inner layer of the electrical component bin; the input EMI printed circuit board and the output EMI printed circuit board are arranged side by side and are positioned on the outer layer of the electric appliance component bin.
Furthermore, the input ports and the output ports are located on the same side of the box body and respectively correspond to the input EMI printed circuit board and the output EMI printed circuit board, and the output EMI printed circuit board is connected with the output ports through output cables.
Further, the face lid includes main face lid and supplementary face lid, be equipped with control panel on the main face lid, supplementary face lid is located with the position department that the output cable corresponds.
Further, the circuit assembly further comprises a plurality of first inductors; the heat dissipation bin is provided with a first heat dissipation area and a second heat dissipation area, the heat radiator is arranged in the first heat dissipation area, and the plurality of first inductors are arranged in the second heat dissipation area; the air inlet is arranged at the bottom plate of the box body and located in the first heat dissipation area, and the air outlet is arranged at least one side plate of the box body and located in the second heat dissipation area.
Furthermore, a partition plate is arranged in the heat dissipation bin, the partition plate divides the heat dissipation bin into the first heat dissipation area and the second heat dissipation area, and a communication port for communicating the first heat dissipation area with the second heat dissipation area is formed in the partition plate; the upper cover of the radiator is provided with a radiating air duct cover, the inlet of the radiating air duct cover is aligned with the air inlet, and the outlet of the radiating air duct cover is aligned with the communicating opening on the partition plate; and an air outlet is also formed in the position, corresponding to the second heat dissipation area, of the rear cover.
Furthermore, the circuit assembly further comprises at least one second inductor, the at least one second inductor is arranged in the first heat dissipation area and located on at least one side of the heat radiator, and a ventilation opening is formed in the first heat dissipation area and close to the second inductor.
Further, the inductor is provided with an aluminum die-casting shell, and the inductor is formed by filling and sealing heat-conducting glue.
Furthermore, a plurality of fans are arranged on the outer side of the bottom plate of the box body, and the fans are arranged at the air inlets side by side.
Further, the input ports and the output ports are also arranged on the bottom plate of the box body, and the input ports are arranged in multiple rows.
The utility model discloses a high-power photovoltaic group string formula dc-to-ac converter is through cutting apart into electrical components storehouse and heat dissipation storehouse with the quick-witted case, is connected the radiator in electrical components storehouse and the power module that will give out heat greatly with the heat dissipation storehouse in order to solve its heat dissipation problem with a plurality of circuit module through the stromatolite setting, the utility model discloses an overall arrangement of quick-witted incasement has not only been improved to the dc-to-ac converter, has promoted space utilization, has still improved heat dispersion, can satisfy the demand of higher power, in addition, can make the electrical components storehouse of acceping main circuit module realize higher protection level based on this design, and the range of application is more extensive.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a perspective view of a high-power photovoltaic string inverter according to an embodiment of the present invention;
FIG. 2 is an exploded perspective view of the high power photovoltaic string inverter of FIG. 1 showing the internal structure of the electrical component compartment;
fig. 3 is another exploded perspective view of the high power pv string inverter of fig. 1, showing the internal structure of the heat sink.
Reference numerals: 1. a box body; 2. a face cover; 3. a rear cover; 4. an electrical component bin; 5. a heat dissipation bin; 6. an input port; 7. an output port; 8. a heat sink; 9. an air inlet; 10. an air outlet; 11. inputting an EMI printed circuit board; 12. outputting the EMI printed circuit board; 13. a boosted printed circuit board; 14. an inverted printed circuit board; 15. a main face cover; 16. an auxiliary surface cover; 17. a control panel; 18. a first inductor; 19. a heat dissipation air duct cover; 20. a second inductor; 21. and a vent.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In addition, the directional terms of the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", and the like, refer to the attached drawings and the direction of the usage of the product. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention. Further, in the drawings, structures that are similar or identical are denoted by the same reference numerals.
Referring to fig. 1 to fig. 3, an embodiment of a high power pv string inverter 100 according to the present invention is shown. As shown, the high-power pv string inverter 100 includes a chassis and a circuit module disposed in the chassis. The case comprises a case body 1, a face cover 2 and a rear cover 3. The box body 1 is divided into a front cavity and a rear cavity. The face cover 2 covers the front cavity to form an electrical component bin 4. The rear cover 3 covers the rear cavity to form a heat dissipation chamber 5. The circuit assembly comprises a plurality of circuit modules, the circuit modules are arranged in the electrical appliance component bin 4 in a laminated mode, and power modules in the circuit modules are arranged on the inner layer of the electrical appliance component bin 4; the electrical component bin 4 is provided with a plurality of input ports 6 and an output port 7 which are connected with the circuit module; a radiator 8 is arranged in the heat dissipation bin 5, and the radiator 8 is connected with the power module; an air inlet 9 and an air outlet 10 are arranged on the heat dissipation bin 5 to form an air channel in the heat dissipation bin 5, so that heat in the case is taken away.
It should be noted that, the high-power pv string inverter 100 shown in fig. 1 to fig. 3 is not in practical use, when in practical use, the front cover 1 is located at the front side of the inverter, the rear cover 3 is located at the rear side of the inverter, the plurality of input ports 6 and the output port 7 are located at the bottom of the high-power pv string inverter 100, and the front, rear, left, right, and the like are described in a state where the high-power pv string inverter 100 is actually used.
The case 1 is designed to be wide, so as to meet the requirements of a large number of input terminals, a large amount of heat generation, and a need of a plurality of fans for heat dissipation of the high-power photovoltaic string inverter 100 (for convenience of description, hereinafter referred to as inverter 100). The electrical component bin 4 is used for controlling the inverter 100 and power conversion, so that the requirement of the electrical component bin 4 on the protection level is high, the heat dissipation bin 5 reduces the heat generated by the electrical component bin 4 to ensure that the electrical component bin 4 can normally operate, therefore, the requirement of the heat dissipation bin 5 on the protection level is low, in order to simultaneously meet the requirements of heat dissipation and the normal operation of the inverter 100, in the application, the case is divided into a front cavity (not marked in the figure) and a rear cavity (not marked in the figure), the electrical component bin 4 with a high protection level requirement is arranged in the front cavity, and the heat dissipation bin 5 with a low protection level requirement is arranged in the rear cavity.
The circuit assembly (not shown) is mainly used for controlling the inverter 100 and realizing power conversion, and includes a plurality of main circuit modules (not shown), wherein the circuit module provided with power devices such as IGBTs is called a power module (not shown), the heat generation amount of the power module is generally high, so the power module is arranged at the bottom layer of the electrical component bin 4 to be closer to the heat dissipation bin 5, thereby improving the heat dissipation of the power module, meanwhile, the plurality of input ports 6 may be PV input ports, and the output port 7 may be an AC output port for connecting the circuit module in the electrical component bin 4 with the outside.
The power module is arranged at the bottom layer of the electrical component bin 4, so that the radiator 8 is conveniently connected with the power module, and the heat dissipation bin 5 is also internally provided with the air inlet 9 and the air outlet 10, so that the heat dissipation performance of the radiator 8 is further improved.
In some embodiments, such as the present embodiment, the plurality of circuit modules includes an input EMI printed circuit board 11, an output EMI printed circuit board 12, a boost printed circuit board 13, and an inverter printed circuit board 14; the boosting printed circuit board 13 and the inverting printed circuit board 14 are the power modules, and the boosting printed circuit board 13 and the inverting printed circuit board 14 are arranged side by side and are positioned on the inner layer of the electrical component bin 4; the input EMI printed circuit board 11 and the output EMI printed circuit board 12 are arranged side by side and located at the outer layer of the electrical component compartment 4.
Wherein, the electrical component chamber 4 realizes the control of the inverter 100 and the function of power conversion through the circuit module comprising the input EMI printed circuit board 11, the output EMI printed circuit board 12, the voltage boosting printed circuit board 13 and the inversion printed circuit board 14, the laminated design of the printed circuit boards is realized by arranging the input EMI printed circuit board 11 and the output EMI printed circuit board 12 side by side on the outer layer of the electrical component compartment 4 and arranging the booster printed circuit board 13 and the inverter printed circuit board 14 side by side and on the inner layer of the electrical component compartment 4, thereby allowing the input EMI printed circuit board 11 and the output EMI printed circuit board 12 to be easily connected with the outside and allowing the boosting printed circuit board 13 and the inverting printed circuit board 14 to be directly connected with the heat sink 8, so that it can satisfy both the connection with the outside and the requirement for heat dissipation performance.
In a further embodiment, the input ports 6 and the output ports 7 are located on the same side of the housing 1 and correspond to the input EMI printed circuit board 11 and the output EMI printed circuit board 12, respectively, and the output EMI printed circuit board 12 is connected to the output ports 7 through output cables.
Wherein, the input port 6 and the output port 7 are arranged on the same side, which facilitates the connection with the input EMI printed circuit board 11 and the output EMI printed circuit board 12, and further improves the space utilization.
In some embodiments, such as the present embodiment, the face cover 2 includes a main face cover 15 and an auxiliary face cover 16, the main face cover 12 is provided with a control panel 17, and the auxiliary face cover 16 is provided at a position corresponding to the output cable.
Wherein, the main panel is provided with a control panel 17 for controlling the working state of the inverter 100; and the auxiliary panel is used for dismounting and maintaining cables. Divide into main face lid 15 and supplementary face lid 16 with face lid 2, can make things convenient for subsequent maintenance, when the dismouting that needs carry out the circuit cable with maintain only need open alone supplementary panel 16 can, can not influence the use to control panel 17 on main face lid 15. In some embodiments, an LCD screen may be further disposed on the control panel 17, and may display the operating state of the inverter 100.
In some embodiments, such as the present embodiment, the circuit assembly further includes a plurality of first inductors 18; the heat dissipation bin 5 is provided with a first heat dissipation area (not marked in the figure) and a second heat dissipation area (not marked in the figure); the radiator 8 is arranged in the first heat dissipation area, and the plurality of first inductors 18 are arranged in the second heat dissipation area; the air inlet 9 is arranged at the bottom plate of the box body 1 and located in the first heat dissipation area, and the air outlet 10 is arranged at least one side plate of the box body 1 and located in the second heat dissipation area.
The air inlet 9 is arranged in the first heat dissipation area, so that wind entering from the air inlet 9 can dissipate heat of the radiator 8 in the first heat dissipation area at the first time, and the heat dissipation performance is improved; the first inductor 18 is also one of the main heat generating elements, and therefore, it is disposed in the second heat dissipating area next to the first heat dissipating area, so as to further enhance the heat dissipating performance; the heat sink 8 is mainly used for dissipating heat of the power module, so that after the air from the air inlet 9 passes through the heat sink 8 and the first inductor 18 in sequence, most of the main components in the chassis are already dissipated, and therefore, in order to exhaust the heat out of the chassis as soon as possible, the air outlet 10 is arranged at the side plate of the second heat dissipation area.
In some embodiments, for example, in the present embodiment, a partition (not shown in the drawings) is disposed in the heat dissipation bin 5, the partition divides the heat dissipation bin 5 into the first heat dissipation area and the second heat dissipation area, and a communication port for communicating the first heat dissipation area and the second heat dissipation area is formed in the partition; a heat dissipation air duct cover 19 is arranged on the radiator 8 in a covering manner, the inlet of the heat dissipation air duct cover 19 is aligned with the air inlet 9, and the outlet of the heat dissipation air duct cover 19 is aligned with the communication opening on the partition plate; an air outlet 10 is also formed in the position, corresponding to the second heat dissipation area, of the rear cover 3.
The heat dissipation bin 5 is partitioned by the partition board, the communication port is formed in the partition board, and the heat dissipation air duct cover 19 is matched, so that air entering from the air inlet 9 cannot pass through other places, but sequentially passes through the heat dissipater 8 and the communication port to reach the first inductor 18, and is finally discharged through the air outlet 10, the heat dissipation performance is further improved, and in order to better enable the wind energy to be discharged from the case, the air outlet 10 can also be arranged at the position, corresponding to the second heat dissipation area, on the rear cover 3 and mainly corresponding to the first inductor 18, and the size of the rear cover can be adjusted along with the number of the first inductors 18.
In some embodiments, such as this embodiment, the circuit assembly further includes at least one second inductor 20, the at least one second inductor 20 is disposed in the first heat dissipation area and located on at least one side of the heat sink 8, and a vent 21 is disposed in the first heat dissipation area and close to the second inductor 20.
The second inductor 20 usually generates much less heat than the first inductor 18 relative to the first inductor 18, and for these inductors, it may not be disposed in the second heat dissipation area, but disposed on both sides of the heat sink 8 in the first heat dissipation area; specifically, the air vents 21 are arranged on the side plates of the first heat dissipation area near the position of the second inductor 20, and the air vents 21 are arranged on the side plates of the first heat dissipation area near the position of the second inductor 20, so that the second inductor 20 cannot dissipate heat for the second inductor 20 due to the fact that the second inductor 20 is arranged on the two sides of the heat sink 8, and therefore the air vents 21 can be arranged near the second inductor 20, and natural heat dissipation is achieved. For better heat dissipation performance, the ventilation opening 21 may also be provided at a position corresponding to the second inductor 20 on the rear cover 3.
In a further embodiment, the inductor is provided with an aluminum die-cast housing, and the inductor is encapsulated by a heat-conducting glue. The shell formed by encapsulating the inductor through the heat-conducting glue has stronger heat-conducting property, and the heat-radiating performance of the inductor can be further improved.
In some embodiments, for example, in this embodiment, a plurality of fans are disposed on the outer side of the bottom plate of the box body 1, and the fans are disposed side by side at the air inlet 9.
The fan is designed outside the box body 1, and is specifically embedded outside the box body 1. When the fan needs to be maintained, the fan can be disassembled and assembled without opening the interior of the inverter 100; the side-by-side arrangement of the fans can adapt to the wide design of the box body, so that the function expansion is facilitated; meanwhile, the fan is arranged at the bottom of the box body 1, so that the fan can be protected from being interfered by dust and weather, and damage is caused.
In some embodiments, such as this embodiment, the input ports 6 and the output ports 7 are also provided at the bottom plate of the box 1, and the input ports are arranged in multiple rows.
The input port 6 and the output port 7 are disposed at the electrical component bin 4 and are susceptible to the influence of the dust layer and the weather, so that the input port 6 and the output port 7 are also disposed at the bottom of the box body 1, thereby avoiding the influence of the dust layer and the weather and further protecting the inside of the box body 1.
The utility model discloses a high-power photovoltaic group string formula is through being cut apart into electrical components storehouse 4 and heat dissipation storehouse 5 with the quick-witted case, will input EMI printed circuit board 11 and output EMI printed circuit board 12 and set up at the skin in electrical components storehouse 4 and will step up printed circuit board 13 and contravariant printed circuit board 14 and set up the inlayer in electrical components storehouse 4 so that be connected with radiator 8 to make radiator 8 can dispel the heat for calorific capacity great step up printed circuit board 13 and contravariant printed circuit board 14 fast. In order to further improve heat dissipation, the inductor with larger heat productivity is arranged in the first heat dissipation area and the second heat dissipation area, so that the layout in the case is improved, the space utilization rate is improved, the heat dissipation performance is improved, the requirement of higher power can be met, meanwhile, the electrical component bin achieves higher protection level, and the application range is wider.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A high-power photovoltaic group string inverter is characterized by comprising a case and a circuit assembly arranged in the case;
the case comprises a case body, a surface cover and a rear cover, wherein the case body is divided into a front cavity and a rear cavity, the surface cover covers the front cavity to form an electrical component bin, and the rear cover covers the rear cavity to form a heat dissipation bin;
the circuit assembly comprises a plurality of circuit modules, the circuit modules are arranged in the electrical appliance component bin in a laminated mode, power modules in the circuit modules are arranged on the inner layer of the electrical appliance component bin, and the electrical appliance component bin is provided with a plurality of input ports and an output port which are connected with the circuit modules;
the heat dissipation bin is internally provided with a radiator, the radiator is connected with the power module, and the heat dissipation bin is provided with an air inlet and an air outlet so as to form an air channel in the heat dissipation bin, so that heat in the case is taken away.
2. The high power pv string inverter as set forth in claim 1, wherein said plurality of circuit modules includes an input EMI printed circuit board, an output EMI printed circuit board, a boost printed circuit board, and an inverter printed circuit board;
the boosting printed circuit board and the inversion printed circuit board are the power modules, and the boosting printed circuit board and the inversion printed circuit board are arranged side by side and are positioned in the inner layer of the electrical component bin;
the input EMI printed circuit board and the output EMI printed circuit board are arranged side by side and are positioned on the outer layer of the electric appliance component bin.
3. The high power pv string inverter as set forth in claim 2, wherein said plurality of input ports and said plurality of output ports are located on the same side of said housing and correspond to said input EMI printed circuit board and said output EMI printed circuit board, respectively, said output EMI printed circuit board being connected to said output ports by output cables.
4. The high power pv string inverter as claimed in claim 3, wherein the front cover comprises a main front cover on which the control panel is disposed and a sub-front cover disposed at a position corresponding to the output cable.
5. The high power pv string inverter as set forth in claim 1, wherein said circuit assembly further comprises a plurality of first inductors; the heat dissipation bin is provided with a first heat dissipation area and a second heat dissipation area, the heat radiator is arranged in the first heat dissipation area, and the plurality of first inductors are arranged in the second heat dissipation area; the air inlet is arranged at the bottom plate of the box body and located in the first heat dissipation area, and the air outlet is arranged at least one side plate of the box body and located in the second heat dissipation area.
6. The high power pv string inverter as claimed in claim 5, wherein a partition is disposed in the heat dissipation compartment, the partition dividing the heat dissipation compartment into the first heat dissipation area and the second heat dissipation area, the partition being provided with a communication port for communicating the first heat dissipation area with the second heat dissipation area;
the upper cover of the radiator is provided with a radiating air duct cover, the inlet of the radiating air duct cover is aligned with the air inlet, and the outlet of the radiating air duct cover is aligned with the communicating opening on the partition plate;
and an air outlet is also formed in the position, corresponding to the second heat dissipation area, of the rear cover.
7. The high power pv string inverter as set forth in claim 6, wherein said circuit assembly further comprises at least one second inductor disposed in said first heat dissipation area and on at least one side of said heat sink, said first heat dissipation area having a vent disposed therein proximate to said second inductor.
8. The high power pv string inverter as claimed in claim 7, wherein the inductor has an aluminum die-cast housing, and the inductor is encapsulated by a thermally conductive adhesive.
9. The string-type high-power pv inverter as claimed in claim 1, wherein a plurality of fans are disposed outside the bottom plate of the casing, and are disposed side by side at the air inlet.
10. The high power pv string inverter as set forth in claim 1, wherein said plurality of input ports and said plurality of output ports are also provided at a bottom plate of said tank, said plurality of input ports being arranged in a plurality of rows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021814697.3U CN212677069U (en) | 2020-08-26 | 2020-08-26 | High-power photovoltaic group string type inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021814697.3U CN212677069U (en) | 2020-08-26 | 2020-08-26 | High-power photovoltaic group string type inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212677069U true CN212677069U (en) | 2021-03-09 |
Family
ID=74821687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021814697.3U Active CN212677069U (en) | 2020-08-26 | 2020-08-26 | High-power photovoltaic group string type inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212677069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113543545A (en) * | 2021-06-29 | 2021-10-22 | 中国铁路兰州局集团有限公司 | Unpowered marshalling test power module of 160 kilometer power centralized motor train unit |
-
2020
- 2020-08-26 CN CN202021814697.3U patent/CN212677069U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113543545A (en) * | 2021-06-29 | 2021-10-22 | 中国铁路兰州局集团有限公司 | Unpowered marshalling test power module of 160 kilometer power centralized motor train unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9585293B2 (en) | Power conversion apparatus | |
| EP2225923B1 (en) | Inverter | |
| CN104638944B (en) | A kind of inverter | |
| US20220123580A1 (en) | Charging pile and charging unit thereof | |
| US10720880B2 (en) | Photovoltaic inverter | |
| US20220118867A1 (en) | Charging pile | |
| CN212677069U (en) | High-power photovoltaic group string type inverter | |
| CN209283106U (en) | Power-supply controller of electric | |
| CN111385985A (en) | Integrated controller of electric vehicle | |
| CN216357975U (en) | Photovoltaic inverter | |
| CN203301924U (en) | Layout structure of high-power electric-power electronic equipment | |
| CN212034484U (en) | Integrated controller of electric vehicle | |
| CN208836465U (en) | A kind of high-power low pressure inverter structure | |
| CN220123302U (en) | Mobile power supply inverter with air duct heat radiation structure | |
| CN219287381U (en) | Inverter cabinet body, inverter and inversion boosting all-in-one machine | |
| CN221409351U (en) | Control device, propeller and movable equipment in water area | |
| CN206878697U (en) | A kind of high-power purification isolation DC/DC converters | |
| CN214338264U (en) | Active power filter device for photovoltaic power distribution network | |
| CN220173091U (en) | Frequency converter | |
| CN218276488U (en) | Frequency converter | |
| CN211930510U (en) | Power module and inverter | |
| CN211089975U (en) | Power amplifier | |
| CN215773978U (en) | Power cabinet | |
| CN221408665U (en) | Modularized energy storage converter | |
| CN220156912U (en) | Heat radiation structure and inverter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High power photovoltaic series inverter Effective date of registration: 20211230 Granted publication date: 20210309 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: INVT SOLAR TECHNOLOGY (SHENZHEN) CO.,LTD. Registration number: Y2021980017219 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220415 Granted publication date: 20210309 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: INVT SOLAR TECHNOLOGY (SHENZHEN) CO.,LTD. Registration number: Y2021980017219 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |