CN114679891A - Solar photovoltaic inverter - Google Patents
Solar photovoltaic inverter Download PDFInfo
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- CN114679891A CN114679891A CN202210373441.0A CN202210373441A CN114679891A CN 114679891 A CN114679891 A CN 114679891A CN 202210373441 A CN202210373441 A CN 202210373441A CN 114679891 A CN114679891 A CN 114679891A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 65
- 230000000712 assembly Effects 0.000 claims abstract description 30
- 238000000429 assembly Methods 0.000 claims abstract description 30
- 230000017525 heat dissipation Effects 0.000 claims abstract description 21
- 238000009423 ventilation Methods 0.000 claims abstract description 12
- 230000033228 biological regulation Effects 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 1
- 230000017105 transposition Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/005—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure requiring successive relative motions to complete the coupling, e.g. bayonet type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
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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
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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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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a solar photovoltaic inverter, which comprises: an outer chassis; a mounting pillar configured in an L-shaped configuration, the mounting pillar being vertically fixed within the outer chassis; the power transmission assemblies are vertically arranged on the mounting support and used for outputting a direct-current power supply generated by the working of the photovoltaic cell panels to provide alternating-current power regulation for the alternating-current power supply; the power input assembly is arranged corresponding to each power transmission assembly, the output end of the power input assembly is electrically connected with the inverter, and the power input assembly can be matched and connected with the power transmission assemblies; and the ventilation and heat dissipation assembly is correspondingly arranged at each power transmission assembly and is used for dissipating the heat generated at the joint of the power input assembly and the power transmission assembly.
Description
Technical Field
The invention belongs to the technical field of photovoltaic inverter equipment, and particularly relates to a solar photovoltaic inverter.
Background
The photovoltaic inverter is an inverter capable of converting variable direct-current voltage generated by the photovoltaic solar panel into alternating current with commercial power frequency, and can feed back the alternating current to a commercial power transmission system or supply the alternating current for an off-grid power grid. Photovoltaic inverters are one of the important system balances in photovoltaic array systems and can be used with equipment that is typically ac powered. When the existing solar photovoltaic inverter is used, because the power output voltages of different solar photovoltaic panels are different, the voltage received by the inverter cannot be detected, and the photovoltaic inverter cannot be controlled to be switched on or switched off under the condition of unstable voltage or overhigh temperature of the inverter, so that internal components are damaged under the influence of unstable voltage. Meanwhile, although the working heat in the working process can be discharged through the heat dissipation device, the working heat is easy to diffuse into the case and is still in a high-heat state outside the working area of the heat dissipation device under the actual high-temperature environment condition, so that the heat dissipation efficiency is low, and therefore, key heating components are easy to damage under long-term use. Accordingly, one skilled in the art provides a solar photovoltaic inverter to solve the problems set forth in the background art.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a solar photovoltaic inverter, comprising:
an outer chassis;
a mounting pillar configured in an L-shaped configuration, the mounting pillar being vertically fixed within the outer chassis;
the power transmission assemblies are vertically arranged on the mounting support and used for outputting a direct-current power supply generated by the working of the photovoltaic cell panels to provide alternating-current power regulation for the alternating-current power supply;
the power input assembly is arranged corresponding to each power transmission assembly, the output end of the power input assembly is electrically connected with the inverter, and the power input assembly can be matched and connected with the power transmission assemblies; and
and the ventilation and heat dissipation assemblies are correspondingly arranged at the power transmission assemblies and are used for dissipating the heat of the work heat generated at the joint of the power input assembly and the power transmission assemblies.
Further, preferably, the power transmitting module includes:
the fixed bracket is transversely fixed in the outer case;
the rotating shaft frame is fixed at one end of the fixed support, and a guide wheel is arranged in the rotating shaft frame in a relatively rotating manner;
the interface devices are vertically arranged, each interface device is transversely fixed on the mounting support, and one end of each interface device is connected with a power supply lead;
the upper guide wheel is erected above one end of the rotating shaft frame in a relatively rotating mode, and one end of the power supply lead is wound on the upper guide wheel and the guide wheel; and
and the integrated circuit is electrically connected with each power supply lead.
Further, preferably, the power input module includes:
the side bracket is fixed on the upper side of the inner part of the outer case;
the transmission screw is transversely and rotatably arranged on the side bracket, a driving motor is arranged on the side bracket, and the output end of the driving motor is connected with the transmission screw for transmission through the meshing action of a gear;
the guide post is vertically arranged in the outer case, and one end of the guide post is arranged on the transmission screw rod in a sliding manner under the action of thread meshing transmission;
an input terminal fixed at one side of the inner part of the outer case;
the safety protection switch is electrically connected with the input terminal, and each parallel switch of the safety protection switch is connected with an internal connecting wire; and
and the transfer wiring device is fixed on the guide post and is connected with the safety protection switch through the internal wiring.
Further, preferably, the modulation wiring device includes:
an outer torso member;
the two sliding guide frames are arranged up and down, and each sliding guide frame is arranged on the outer body part in a transverse sliding mode;
the support plate is fixed with each sliding guide frame through a support rib;
the plug connectors are arranged in a plurality, the plug connectors are respectively and transversely fixed at the upper end and the lower end of the support plate, and one ends of the plug connectors are correspondingly connected with the inner connecting wires;
the inner driving wheel is arranged in the outer body part in a relatively rotating way; and
and the guide frame rod is constructed into a three-section type telescopic structure, the center of the guide frame rod is fixed on the inner driving wheel, and two ends of the guide frame rod are respectively connected with the sliding guide frame.
Preferably, the plurality of connectors are fixed on the support plates in a transversely staggered manner, so that two power transmission branches are formed in low-power inversion operation.
Further, preferably, the ventilation and heat dissipation assembly includes:
the airflow seat is fixed on one side of the outer case;
the external motor is fixed outside the airflow seat and used for driving the fan blades in the airflow seat to rotate and drain; the dust cover is fixed at the airflow output end of the airflow seat; and
and the drainage inner cylinder is transversely arranged in the outer case.
Further, preferably, the method further comprises: the heat exchange device is sleeved in each power transmission assembly and is used for conducting heat and discharging heat generated by the power transmission assemblies during working in time; the heat exchange device comprises:
the heat conduction ring sleeve is sleeved on the power transmission assembly;
the circulation members are arranged in a plurality, and each circulation member is coaxially sleeved outside the heat-conducting ring sleeve;
the mixed flow bin is coaxially erected outside the heat conduction ring sleeve, hot oil sucking fluid is arranged in the mixed flow bin, a plurality of one-way drainage pipes are correspondingly connected to the mixed flow bin, and one end of each one-way drainage pipe is connected to the circulating member;
the micro pump piece is connected to the one-way drain pipe and used for circularly discharging the heat absorbing oil from the circulation piece to the mixed flow bin; and
an outer cover body coaxially sleeved outside the mixed flow bin
Preferably, the cross sections of the outer cover body and the circulation piece are both in a C-shaped structure, the outer cover body is connected with an airflow external pipe, and the outer wall of the circulation piece is provided with a plurality of radiating fins.
Preferably, two arc-shaped heat collecting grooves are further arranged on one side, far away from the outer cover body, of the drainage inner cylinder.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, a plurality of power transmission assemblies and power input assemblies are arranged between the photovoltaic cell panel and the inverter, the power transmission assemblies and the power input assemblies can be matched and connected to adjust the alternating current power of an alternating current power supply, and the ventilation and heat dissipation assemblies are arranged at the power transmission assemblies and can correspondingly and intensively discharge the working heat generated by the power transmission assemblies during working, so that heat flow diffusion is effectively avoided, and the heat dissipation protection effect is improved;
2. in the invention, each power input assembly is provided with a transfer wiring device which can drive each plug connector to be synchronously and slidably matched in each interface device, and particularly under the conditions of high-heat environment, unstable voltage or overhigh temperature of an inverter and the like, the transfer wiring device can control the alternately arranged plug connectors to alternately work in low-power inversion, thereby avoiding the damage caused by overhigh working heat of the plug connectors;
3. in the invention, the heat exchange device can also be used for carrying out contact heat conduction on the power transmission assembly during working, so that working heat flow is intensively diffused into the drainage inner cylinder and is discharged from the drainage inner cylinder to the outside, the heat flow diffusion is effectively avoided, and the heat dissipation effect is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the power transmission assembly according to the present invention;
FIG. 3 is a schematic structural diagram of a power input assembly according to the present invention;
FIG. 4 is a schematic structural diagram of a modulation wiring device according to the present invention;
FIG. 5 is a schematic view of the ventilation and heat dissipation assembly of the present invention;
FIG. 6 is a schematic view of the heat exchanger apparatus of the present invention;
FIG. 7 is a schematic structural diagram of a curved heat collecting slot according to the present invention;
in the figure: the device comprises an outer case 1, a mounting support 2, a power transmission assembly 3, a fixing support 31, a rotating shaft support 32, a guide wheel 33, an upper guide wheel 34, an interface device 35, a ventilation heat dissipation assembly 4, an airflow seat 41, an external motor 42, a dustproof cover 43, an exhaust inner cylinder 44, a power input assembly 5, a side support 51, a transmission screw 52, a guide column 53, a safety protection switch 54, an input terminal 55, a transfer wiring device 6, an outer component 61, a sliding guide frame 62, a support plate 63, a plug-in connector 64, an inner driving wheel 65, a guide frame rod 66, a heat exchange device 7, a heat conduction ring sleeve 71, a circulation component 72, a mixed flow bin 73, a one-way exhaust pipe 74, a micro-pump component 75, an outer cover 76, an airflow external pipe 77 and an arc-shaped heat collection groove 8.
Detailed Description
Referring to fig. 1, in an embodiment of the present invention, a solar photovoltaic inverter includes:
an outer case 1;
a mounting pillar 2 configured in an L-shaped structure, the mounting pillar 2 being vertically fixed within the outer casing 1;
the power transmission assemblies 3 are arranged in a plurality and connected with a plurality of photovoltaic cell panels (not shown in the figure), and the power transmission assemblies 3 are vertically arranged on the mounting support 2 and used for outputting a direct-current power supply generated by the operation of the photovoltaic cell panels to provide alternating-current power regulation of an alternating-current power supply;
a power input module 5, which is arranged corresponding to each power transmission module 3, wherein an output end of the power input module 5 is electrically connected with an inverter (not shown in the figure), and the power input module 5 can be adapted to and connected with the power transmission module 3; and
and the ventilation and heat dissipation assemblies 4 are correspondingly arranged at the power transmission assemblies 3 and are used for dissipating heat of working heat generated at joints of the power input assembly 5 and the power transmission assemblies 3, wherein the ventilation and heat dissipation assemblies can dissipate the working heat generated in the power transmission assemblies in a centralized manner, and heat flow is prevented from being diffused into an external box.
In this embodiment, the power transmission module 3 includes:
a fixed bracket 31 transversely fixed in the outer case 1;
a rotating shaft frame 32 fixed at one end of the fixed bracket 31, wherein a guide wheel 33 is arranged in the rotating shaft frame 32 in a relatively rotatable manner;
a plurality of interface devices 35 are vertically arranged, each interface device 35 is transversely fixed on the mounting pillar 2, and one end of each interface device 35 is connected with a power supply lead;
an upper guide wheel 34 rotatably mounted above one end of the shaft bracket 32, one end of the power supply lead being wound around the upper guide wheel 34 and the guide wheel 33; and
and the integrated circuit (not shown in the figure) is electrically connected with each power supply lead, and the other end of the integrated circuit is respectively connected with the power supply end of each photovoltaic cell panel.
As a preferred embodiment, the power input assembly 5 includes:
a side bracket 51 fixed to an upper side of the inside of the outer cabinet 1;
the transmission screw rod 52 is transversely and rotatably arranged on the side bracket 51, a driving motor is arranged on the side bracket 51, and the output end of the driving motor is connected with the transmission screw rod 52 for transmission through a gear meshing effect;
the guide post 53 is vertically arranged in the outer case 1, and one end of the guide post 53 is arranged on the transmission screw rod 52 in a sliding manner through the thread meshing transmission function;
an input terminal 55 fixed to one side of the inside of the outer case 1;
a safety switch 54 electrically connected to the input terminal 55, wherein an internal connection is connected to each parallel switch of the safety switch 54; especially, in a high heat environment, the plurality of safety protection switches can alternately work in an interval switch mode, so that the high concentration of work heat in the outer box is avoided, the integral temperature in the outer box is effectively reduced, meanwhile, the high heat condition of a certain input terminal under the long-term work condition can be avoided, the power supply safety is improved, and
and a switching wiring device 6 fixed to the guide post 53 and connected to the safety switch 54 through the inner wiring.
In this embodiment, the transfer wiring device 6 includes:
an outer torso member 61;
two sliding guides 62 arranged vertically, each sliding guide 62 being arranged on the outer body 61 in a sliding manner;
a support plate 63 fixed to each of the slide guides 62 by a stay bar;
the plug-in connectors 64 are arranged in a plurality, the plug-in connectors 64 are respectively transversely fixed at the upper end and the lower end of the support plate 63, and one end of each plug-in connector 64 is correspondingly connected with the corresponding inner connecting wire;
an inner drive wheel 65 relatively rotatably disposed within the outer body member 61; and
and a frame bar 66 configured as a three-segment telescopic structure, wherein the center of the frame bar 66 is fixed on the inner driving wheel 65, and two ends of the frame bar 66 are respectively connected with the sliding guide frame 62, wherein the inner driving wheel can perform reverse or forward rotation motion, so that the connectors on the two support plates can alternately work.
In this embodiment, the plurality of plugs 63 are fixed on each of the support plates 63 in a laterally staggered manner, so as to form two power transmission branches in low-power inversion operation, and particularly, in the alternate operation of the plugs, enough space can be left for the staggered plugs to fully diffuse the working heat to the drainage inner cylinder, thereby avoiding the over-high internal environment temperature caused by high concentration of heat.
In this embodiment, the ventilation and heat dissipation assembly 4 includes:
an airflow seat 41 fixed on one side of the outer case 1;
the external motor 42 is fixed outside the airflow seat 41 and is used for driving the fan blades in the airflow seat 41 to rotate and discharge;
a dust cover 43 fixed at the airflow output end of the airflow seat 41; and
and the drainage inner cylinder 44 is transversely arranged in the outer machine case 1.
As a preferred embodiment, the method further comprises the following steps: the heat exchange device 7 is sleeved in each power transmission assembly 3, and is used for timely conducting heat and discharging heat generated by the power transmission assemblies 3 during working; the heat exchanging device 7 includes:
a heat-conducting ring sleeve 71 sleeved on the power transmission assembly 3;
a plurality of circulation members 72 are arranged, and each circulation member 72 is coaxially sleeved outside the heat-conducting ring sleeve 71;
the mixed flow bin 73 is coaxially erected outside the heat conduction ring sleeve 71, heat absorbing oil is arranged in the mixed flow bin 73, a plurality of one-way discharge pipes 74 are correspondingly connected to the mixed flow bin 73, and one end of each one-way discharge pipe 74 is connected to the circulating current piece 72;
a micro-pump element 75 connected to the one-way drain pipe 74 for circularly discharging the heat-drawing fluid from the circulation element 72 to the mixing chamber 73; the micro pump piece can convey the heat-drawing oil in the circulating piece to the mixed flow bin in a one-way mode, and the mixed flow bin discharges the heat-drawing oil into the circulating piece through the one-way drainage pipe located below the mixed flow bin, so that the circulating flow of the heat-drawing oil is realized; and
the outer cover body 76 is coaxially sleeved outside the mixed flow bin 73, and particularly can intensively discharge diffused heat flow of the mixed flow bin.
In this embodiment, the cross sections of the outer cover body 76 and the circulation member are both in a C-shaped structure, the outer cover body 76 is connected with an external airflow pipe 77, the outer wall of the circulation member 72 is provided with a plurality of heat dissipation fins, the cross sections of the outer cover body 76 and the circulation member are both in a C-shaped structure, the outer cover body 76 is connected with an external airflow pipe 77, and the outer wall of the circulation member 72 is provided with a plurality of heat dissipation fins (not shown), wherein it should be noted that one end of the outer cover body close to the external airflow pipe is in a closed state, so that the heat dissipated from the mixed flow bin can be concentrated and discharged through the other port of the outer cover body.
In this embodiment, two arc heat collecting grooves 8 are further disposed on the side of the drainage inner cylinder 44 away from the outer cover 76, wherein the heat discharging ports of the two outer covers staggered at the upper end are aligned with the arc heat collecting grooves at the upper end, and the heat discharging ports of the two outer covers staggered at the lower end are aligned with the arc heat collecting grooves at the lower end, and especially in the low-power inversion operation of the modulation and wiring device, the working heat generated by each power transmission branch can be relatively concentrated, so as to improve the heat dissipation and delivery efficiency and avoid heat diffusion.
Specifically, when the solar photovoltaic inverter is used, the photovoltaic panels are respectively connected with the power transmission assembly, the inverter is correspondingly connected with the power input assembly, and the power transmission assembly and the power input assembly can be matched and connected to provide alternating current power regulation for an alternating current power supply; the overall working power of the solar photovoltaic inverter is specifically adjusted according to the temperature of the external environment, on one hand, the guide column can drive all the plug connectors in the transfer wiring device to be electrically connected with the interface device under the condition of transverse displacement, and on the other hand, after the guide column is displaced to the distance range of one end of the mounting support column, the plug connectors which are arranged in a staggered mode in the transfer wiring device alternately work in low-power inversion, so that the damage caused by overhigh working heat of the plug connectors is avoided; meanwhile, the ventilation and heat dissipation assembly can be used for intensively discharging working heat generated by the power transmission assembly in work, so that heat flow diffusion is avoided, and the internal temperature of the outer box is further reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent substitutions or changes according to the technical solution and the inventive concept of the present invention should be covered by the scope of the present invention.
Claims (9)
1. A solar photovoltaic inverter is characterized in that: it includes:
an outer case (1);
a mounting strut (2) configured in an L-shaped structure, the mounting strut (2) being vertically fixed within the outer chassis (1);
the power transmission assemblies (3) are arranged in a plurality and are connected with a plurality of photovoltaic cell panels, and the power transmission assemblies (3) are vertically arranged on the mounting support columns (2) and are used for outputting a direct-current power supply generated by the operation of the photovoltaic cell panels to provide alternating-current power regulation of the alternating-current power supply;
the power input assembly (5) is arranged corresponding to each power transmission assembly (3), the output end of the power input assembly (5) is electrically connected with the inverter, and the power input assembly (5) can be matched and connected with the power transmission assemblies (3); and
and the ventilation and heat dissipation assemblies (4) are correspondingly arranged at the power transmission assemblies (3) and are used for performing heat dissipation treatment on working heat generated at the joint of the power input assembly (5) and the power transmission assemblies (3).
2. The solar photovoltaic inverter according to claim 1, wherein: the power transmission assembly (3) includes:
the fixed bracket (31) is transversely fixed in the outer case (1);
the rotating shaft frame (32) is fixed at one end of the fixed support (31), and a guide wheel (33) is arranged in the rotating shaft frame (32) in a relatively rotating manner;
the connector device comprises a plurality of connector devices (35) which are vertically arranged, each connector device (35) is transversely fixed on the mounting support column (2), and one end of each connector device (35) is connected with a power supply lead;
the upper guide wheel (34) is erected above one end of the rotating shaft frame (32) in a relatively rotating mode, and one end of the power supply lead wire is wound on the upper guide wheel (34) and the guide wheel (33); and
and the integrated circuit is electrically connected with each power supply lead.
3. The solar photovoltaic inverter according to claim 1, wherein: the power input assembly (5) comprises:
a side bracket (51) fixed on the inner upper side of the outer case (1);
the transmission screw rod (52) is transversely and rotatably arranged on the side bracket (51), a driving motor is arranged on the side bracket (51), and the output end of the driving motor is connected with the transmission screw rod (52) for transmission through a gear meshing effect;
the guide post (53) is vertically arranged in the outer case (1), and one end of the guide post (53) is arranged on the transmission screw rod (52) in a sliding manner through the thread meshing transmission effect;
an input terminal (55) fixed to one side of the inside of the outer case (1);
a safety protection switch (54) electrically connected to the input terminal (55), wherein an inner connection wire is connected to each parallel switch of the safety protection switch (54); and
and the transfer wiring device (6) is fixed on the guide post (53) and is connected with the safety protection switch (54) through the internal wiring.
4. The solar photovoltaic inverter according to claim 3, wherein: the transposition wiring device (6) comprises:
an outer body member (61);
two sliding guide frames (62) are arranged up and down, and each sliding guide frame (62) is arranged on the outer body part (61) in a transverse sliding mode;
a support plate (63) fixed to each of the slide guides (62) by a brace;
the plug connectors (64) are arranged in a plurality, the plug connectors (64) are respectively transversely fixed at the upper end and the lower end of the support plate (63), and one end of each plug connector (64) is correspondingly connected with the corresponding inner connecting wire;
an inner drive wheel (65) rotatably disposed within the outer body member (61); and
and the guide frame rod (66) is constructed into a three-section type telescopic structure, the center of the guide frame rod (66) is fixed on the inner driving wheel (65), and two ends of the guide frame rod are respectively connected with the sliding guide frame (62).
5. The solar photovoltaic inverter according to claim 3, wherein: the plurality of plug connectors (63) are fixed on the support plates (63) in a transversely staggered mode so as to form two power transmission branches in low-power inversion operation.
6. The solar photovoltaic inverter according to claim 1, wherein: the ventilation and heat dissipation assembly (4) comprises:
the airflow seat (41) is fixed on one side of the outer case (1);
the external motor (42) is fixed outside the airflow seat (41) and is used for driving the fan blades in the airflow seat (41) to rotate and discharge;
a dust cover (43) fixed at the airflow output end of the airflow seat (41); and
and the drainage inner cylinder (44) is transversely arranged in the outer case (1).
7. The solar photovoltaic inverter according to claim 6, wherein: further comprising: the heat exchange device (7) is sleeved in each power transmission assembly (3) and is used for conducting heat and discharging heat generated by the power transmission assemblies (3) during working in time; the heat exchange device (7) comprises:
the heat conduction ring sleeve (71) is sleeved on the power transmission assembly (3);
the circulation members (72) are arranged in a plurality, and each circulation member (72) is coaxially sleeved outside the heat-conducting ring sleeve (71);
the mixed flow bin (73) is coaxially erected outside the heat conduction ring sleeve (71), hot oil sucking fluid is arranged in the mixed flow bin (73), a plurality of one-way discharge pipes (74) are correspondingly connected to the mixed flow bin (73), and one end of each one-way discharge pipe (74) is connected to the circulating member (72);
the micro pump piece (75) is connected to the one-way drain pipe (74) and is used for circularly discharging the heat-drawing oil from the circulating piece (72) to the mixed flow bin (73); and
and the outer cover body (76) is coaxially sleeved outside the mixed flow bin (73).
8. The solar photovoltaic inverter according to claim 7, wherein: the cross sections of the outer cover body (76) and the circulation piece are both in a C-shaped structure, an airflow external connection pipe (77) is connected to the outer cover body (76), and a plurality of radiating fins are arranged on the outer wall of the circulation piece (72).
9. The solar photovoltaic inverter according to claim 8, wherein: and two arc-shaped heat collecting grooves (8) are also formed in one side of the drainage inner cylinder (44) far away from the outer cover body (76).
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011126346A2 (en) * | 2010-04-08 | 2011-10-13 | 플러스이앤지 주식회사 | Solar photovoltaic device and a control method therefor |
| US20140265585A1 (en) * | 2013-03-15 | 2014-09-18 | Technology Research Corporation | Interface for renewable energy system |
| CN108123615A (en) * | 2016-11-29 | 2018-06-05 | 辽宁东鹰新能源科技股份有限公司 | A kind of solar photovoltaic inverter |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011126346A2 (en) * | 2010-04-08 | 2011-10-13 | 플러스이앤지 주식회사 | Solar photovoltaic device and a control method therefor |
| US20140265585A1 (en) * | 2013-03-15 | 2014-09-18 | Technology Research Corporation | Interface for renewable energy system |
| CN108123615A (en) * | 2016-11-29 | 2018-06-05 | 辽宁东鹰新能源科技股份有限公司 | A kind of solar photovoltaic inverter |
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