CN113992036A - Photovoltaic inverter aluminum alloy frame structure and mounting method thereof - Google Patents

Photovoltaic inverter aluminum alloy frame structure and mounting method thereof Download PDF

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Publication number
CN113992036A
CN113992036A CN202111310828.3A CN202111310828A CN113992036A CN 113992036 A CN113992036 A CN 113992036A CN 202111310828 A CN202111310828 A CN 202111310828A CN 113992036 A CN113992036 A CN 113992036A
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China
Prior art keywords
frame
heat
braking
clamping
plate
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CN202111310828.3A
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Chinese (zh)
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CN113992036B (en
Inventor
焦兰
卞金欢
程红
夏必胜
王耀宇
严凯
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Zhangjiagang Runsheng Science & Technology Material Co ltd
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Zhangjiagang Runsheng Science & Technology Material Co ltd
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Publication of CN113992036A publication Critical patent/CN113992036A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/003Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30Electrical components
    • H02S40/32Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20909Forced ventilation, e.g. on heat dissipaters coupled to components
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention relates to the technical field of photovoltaic inverters, in particular to an aluminum alloy frame structure of a photovoltaic inverter, which comprises a frame bottom plate and a frame top plate, wherein a bayonet lock braking part is arranged in a rubber clamping head in a sliding mode, a heat exhaust barrel is arranged between a clamping block clamping groove and a clamping block of the bottom frame, a refrigerating sheet assembly is arranged on the heat exhaust barrel and comprises a refrigerating sheet heat absorption surface and a refrigerating sheet heat dissipation surface, and the refrigerating sheet assembly is used for absorbing heat in an inner bin of the inverter. The invention can pull out the braking part of the clamping pin by rotating the braking nut clockwise, so that the rubber clamping head is attached to the clamping groove of the clamping block, the purpose of sealing the frame bottom plate and the frame top plate is achieved, the installation is convenient, the sealing performance is good, the heat exhaust cylinder exhausts the heat absorbed by the refrigerating sheet assembly, the heat in the inner bin of the inverter is reduced, the temperature is reduced under the sealing condition, the protection of components in the inner bin of the inverter is facilitated, and the service life of the components is greatly prolonged.

Description

Photovoltaic inverter aluminum alloy frame structure and mounting method thereof
Technical Field
The invention relates to an aluminum alloy frame structure of a photovoltaic inverter, in particular to an aluminum alloy frame structure of a photovoltaic inverter, and belongs to the technical field of photovoltaic inverters.
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 be used by an off-grid power grid.
The system is one of important system balances in a photovoltaic array system, can be used together with common alternating current power supply equipment, and has the functions of being matched with special functions of a photovoltaic array, such as maximum power point tracking and island effect protection.
Traditional photovoltaic inverter aluminum alloy frame is all made by once punching press, when installing components and parts, it is very inconvenient, still probably cause not equidimension's damage to components and parts, and all be not sealed state, lead to the air to enter into inside, make oxygen in components and parts and the air take place the oxidation, the life of greatly reduced component, and current photovoltaic inverter aluminum alloy frame has certain sealing performance, but have and can't carry out effectual heat dissipation, lead to inside high temperature, seriously influence the normal work of components and parts, shorten the life of components and parts.
Therefore, there is a need for an improved aluminum frame structure of a photovoltaic inverter to solve the above problems.
Disclosure of Invention
The invention aims to provide an aluminum alloy frame structure of a photovoltaic inverter, wherein a braking nut is rotated clockwise to pull out a braking part of a clamping pin, so that a rubber clamping head is attached to a clamping groove of a clamping block, the purpose of sealing a frame bottom plate and a frame top plate is achieved, the mounting is convenient, the sealing performance is good, a heat extraction cylinder exhausts heat absorbed by a refrigeration plate assembly, the heat in an inner bin of the inverter is reduced, the temperature is reduced under the sealing condition, the protection of components in the inner bin of the inverter is facilitated, and the service life of the components is greatly prolonged.
In order to achieve the purpose, the invention adopts the main technical scheme that:
the frame comprises a frame bottom plate and a frame top plate rotating on the frame bottom plate, wherein one end of the frame bottom plate is connected with a clamping block clamping groove through a bottom frame clamping block, one end of the frame top plate is connected with a rubber clamping head through a top frame clamping block, the clamping block clamping groove and the rubber clamping head are on the same vertical axis, and the rubber clamping head is connected with the clamping block clamping groove in a clamping manner;
a bottom frame rotating block is fixedly arranged at one end of the frame bottom plate, a top frame rotating block is arranged at one end of the frame top plate, the top frame rotating block and the bottom frame rotating block are on the same vertical axis, the bottom frame rotating block is rotatably connected with the top frame rotating block, and the rotating angle range of the frame top plate is 0-180 degrees;
through the technical scheme, the traditional alloy frame is made by one-time stamping, when the components are installed, the traditional alloy frame is very inconvenient, the components can be damaged in different degrees, and the traditional alloy frame is distinguished;
a bayonet braking piece is arranged in the rubber chuck in a sliding manner, a plurality of uniformly distributed bayonet braking blocks are arranged on the bayonet braking piece, a bayonet braking groove connected with the bayonet braking blocks in a clamping manner is formed in the rubber chuck, braking lead screws are fixedly arranged at two ends of the bayonet braking piece, braking nuts are connected to the braking lead screws through threads, and the bayonet braking piece is used for expanding the diameter of the rubber chuck;
the bayonet lock brake block on the bayonet lock brake part is clamped in a bayonet lock brake groove of the rubber chuck, and in the process of pulling the bayonet lock brake part outwards, the bayonet lock brake block extrudes the bayonet lock brake groove to increase the diameter of the rubber chuck, so that the rubber chuck can be clamped in the clamping groove of the clamping block;
a plurality of frame assembly holes are fixedly formed in the frame bottom plate and the frame top plate, the frame assembly holes are connected with frame port sealing plates through fastening bolts, a plurality of sealing plate assembly holes are formed in the frame port sealing plates, the sealing plate assembly holes correspond to the frame assembly holes, and the fastening bolts penetrate through the sealing plate assembly holes and are fixedly connected with the frame assembly holes;
the clamping pin braking part penetrates through the rubber clamping head and protrudes out of two end faces of the rubber clamping head, the braking screw rod penetrates through the frame port sealing plate and extends to the outer side face of the frame port sealing plate, the braking nut is connected with the braking screw rod in a screwing mode through threads, and the braking nut is arranged on the outer side face of the frame port sealing plate;
according to the technical scheme, after the rubber clamping head on the frame top plate is clamped into the clamping block clamping groove on the frame bottom plate, the frame port sealing plate is fixed on the frame bottom plate and the frame top plate, the brake screw rod on the clamping pin braking piece penetrates through the frame port sealing plate and is fastened through the brake nut, so that the clamping pin braking piece can be pulled out outwards by clockwise rotating the brake nut, and then the clamping pin braking block on the clamping pin braking piece can slide in the clamping pin braking groove, and the purpose of increasing the diameter of the rubber clamping head is achieved;
meanwhile, the tightness of the fit between the rubber clamping head and the clamping block clamping groove is increased, air can be prevented from entering the alloy frame through the clamping block clamping groove, components are oxidized, and the sealing performance of the whole alloy frame is improved;
further, a heat discharge tube is fixedly arranged between the clamping block clamping groove and the bottom frame clamping block, a refrigerating sheet groove is formed in the heat discharge tube, and a refrigerating sheet assembly is arranged inside the refrigerating sheet groove;
the refrigerating piece assembly comprises a refrigerating piece heat absorption surface and a refrigerating piece heat dissipation surface, the refrigerating piece heat absorption surface is arranged on the outer side surface of the heat exhaust cylinder, an inverter inner bin is formed between the frame bottom plate and the frame top plate, the refrigerating piece heat absorption surface is arranged inside the inverter inner bin, the refrigerating piece heat dissipation surface is arranged on the inner side surface of the heat exhaust cylinder, and the refrigerating piece assembly is used for absorbing heat inside the inverter inner bin;
through the technical scheme, the refrigerating sheet assembly is fixedly arranged on one side of the heat extraction cylinder communicated with the inner bin of the inverter, and the refrigerating sheet heat absorption surface on the refrigerating sheet assembly can absorb heat inside the inner bin of the inverter and radiate the heat through the refrigerating sheet heat radiation surface;
meanwhile, a plurality of exhaust grooves which are centrosymmetric are formed in one side surface of the heat exhaust cylinder corresponding to the refrigerating sheet groove, a radiating fan is fixedly arranged at one end inside the heat exhaust cylinder, a radiating cylinder ventilating grid is fixedly arranged at an outer port of the heat exhaust cylinder, a filtering window is fixedly arranged on a frame port sealing plate, and the filtering window is a stainless steel filtering window;
through above technical scheme, after the cooling fin cooling surface discharged the heat into the inside of heat extraction section of thick bamboo, increase the inside air flow rate of heat extraction section of thick bamboo through the inside radiator fan of heat extraction section of thick bamboo to can reduce the inside heat of heat extraction section of thick bamboo, reach the purpose that reduces whole structure temperature, simple structure, convenient to use, the inside entering dust of heat extraction section of thick bamboo can be prevented to filter window and the ventilative bars of heat extraction section of thick bamboo, promote the safety of using and the life-span that radiator fan used.
Through the technical scheme, the copper heat dissipation piece is fixedly arranged on the top frame rotating block;
the copper radiating piece comprises a supporting piece and a radiating piece, the supporting piece is of an arc-shaped structure, the supporting piece is fixedly connected with the radiating piece, the radiating piece penetrates through the top frame rotating block and extends to the outer side face of the top frame rotating block, the copper radiating piece on the top frame rotating block is of an arc-shaped structure, the supporting piece can scatter and dissipate heat inside the inverter inner bin to the outside of the inverter inner bin in a heat transfer mode, therefore, the radiating purpose can be achieved, the cooling piece assembly corresponds to the cooling piece assembly, meanwhile, the inside of the inverter inner bin is cooled, the structure is simple, and the radiating efficiency is greatly improved.
Preferably, the inside of frame bottom plate and frame roof is attached with a plurality of blotter, is provided with on the top frame block and inhales the sound cotton, inhales the sound cotton and be L type structure, can reduce the inside noise of components and parts, in addition owing to inhale the sound cotton loose porous, consequently can also carry out effectual absorption to the inside dust in the interior storehouse of dc-to-ac converter, promotes the life of components and parts greatly.
One side of the rubber chuck is provided with a sealing strip, one end of the sealing strip is fixedly arranged on the top frame clamping block, the other end of the top frame clamping block abuts against the heat extraction cylinder, and the sealing performance of the joint of the clamping block clamping groove and the rubber chuck is improved, so that the sealing performance of the whole device is improved.
Preferably, the side of going up of frame roof has seted up visual window groove, and the fixed visual window that is provided with in inside in visual window groove, visual window pass through the mode and the visual window groove fixed connection of mucilage binding, are convenient for look over the inside in storehouse in the dc-to-ac converter, make things convenient for the maintenance and the management in later stage.
A mounting method of a photovoltaic inverter aluminum alloy frame structure comprises the following steps:
the method comprises the following steps: firstly, taking out a rubber clamping head on a clamping block of a top frame from a clamping block clamping groove on a clamping block of a bottom frame, and clockwise rotating a top plate of a frame by 180 degrees;
step two: installing an electrical element in the inner bin of the inverter, and after the installation is finished, rotating the frame top plate anticlockwise to clamp the rubber clamping head in the clamping block clamping groove;
step three: fixing a frame port sealing plate on a frame bottom plate and a frame top plate through fastening bolts, and extending a brake screw rod out of the outer side surface of the frame port sealing plate after penetrating through the frame port sealing plate;
step four: after the frame port sealing plate is fixed, the braking nut is firstly fastened with one of the braking screw rods, the braking piece of the clamping pin slides in the rubber clamping head, the diameter of the rubber clamping head is increased, the rubber clamping head and the clamping block clamping groove are fastened, and then the other braking screw rod is fixed with the frame port sealing plate.
The invention has at least the following beneficial effects:
1. the bayonet lock brake block joint on the bayonet lock braking part is inside the bayonet lock catch groove of rubber dop, at the in-process of outwards twitching the bayonet lock braking part, the bayonet lock brake block extrudes between the bayonet lock catch groove, makes the diameter increase of rubber dop, and then can make the rubber dop card die in the inside of block draw-in groove, makes rubber dop and block draw-in groove laminating be in the same place, reaches the purpose of sealed frame bottom plate and frame roof, simple to operate and sealing performance are good.
2. The heat exhausting cylinder exhausts the heat absorbed by the refrigerating sheet assembly, and the copper heat radiating piece dissipates the heat inside the inverter inner bin to the outside of the inverter inner bin in a heat transfer mode, so that the heat inside the inverter inner bin is reduced, the temperature is reduced under the sealed condition, the protection of components inside the inverter inner bin is facilitated, and the service life of the components is greatly prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a perspective view of the present invention;
FIG. 4 is a cross-sectional view of a rubber chuck of the present invention;
FIG. 5 is a perspective view of the detent catch of the present invention;
fig. 6 is a perspective view of a copper heat sink of the present invention;
fig. 7 is an enlarged view of a portion a in fig. 1.
In the figure, 1-frame bottom plate, 101-bottom frame rotating block, 102-bottom frame engaging block, 2-frame top plate, 201-top frame rotating block, 202-top frame engaging block, 203-visible window groove, 3-copper heat sink, 301-support plate, 302-heat sink, 4-heat sink, 401-cold sink groove, 402-exhaust groove, 5-cold sink assembly, 501-cold sink heat-absorbing surface, 502-cold sink heat-dissipating surface, 6-engaging block slot, 7-rubber chuck, 701-bayonet catch slot, 8-bayonet catch, 801-bayonet catch brake block, 802-brake screw, 9-radiator fan, 10-buffer pad, 11-frame assembly hole, 12-frame port sealing plate, 13-sealing plate assembly hole, 14-fastening bolt, 15-brake nut, 16-visible window, 17-filtering window, 18-inverter inner bin, 19-radiating cylinder ventilating grid, 20-sound-absorbing cotton and 21-sealing strip.
Detailed Description
Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
As shown in fig. 1 to 7, the aluminum alloy frame structure of the photovoltaic inverter provided by the present embodiment includes a frame bottom plate 1 and a frame top plate 2 rotating on the frame bottom plate 1, one end of the frame bottom plate 1 is connected to a clamping block slot 6 through a bottom frame clamping block 102, one end of the frame top plate 2 is connected to a rubber chuck 7 through a top frame clamping block 202, the clamping block slot 6 and the rubber chuck 7 are on the same vertical axis, and the rubber chuck 7 is connected to the clamping block slot 6 in a clamping manner;
a bottom frame rotating block 101 is fixedly arranged at one end of the frame bottom plate 1, a top frame rotating block 201 is arranged at one end of the frame top plate 2, the top frame rotating block 201 and the bottom frame rotating block 101 are on the same vertical axis, the bottom frame rotating block 101 is rotatably connected with the top frame rotating block 201, and the rotating angle range of the frame top plate 2 is 0-180 degrees;
the traditional alloy frame is made by one-time stamping, when components are installed, the traditional alloy frame is very inconvenient, the components can be damaged in different degrees, and the traditional alloy frame is distinguished, the aluminum alloy frame of the photovoltaic inverter provided by the embodiment is divided into a frame bottom plate 1 and a frame top plate 2, one side of the frame bottom plate 1 is rotatably connected with one side of the frame top plate 2, and the other side of the frame bottom plate is connected with the other side of the frame top plate in a clamping manner, so that the frame top plate 2 can be rotated by 90-180 degrees relative to the frame bottom plate 1, the components can be conveniently installed, on one hand, the installation efficiency is improved, and on the other hand, the components inside the alloy frame can be effectively protected;
a bayonet braking piece 8 is arranged in the rubber chuck 7 in a sliding manner, a plurality of bayonet braking blocks 801 uniformly distributed are arranged on the bayonet braking piece 8, a bayonet braking groove 701 connected with the bayonet braking blocks 801 in a clamping manner is arranged in the rubber chuck 7, braking screw rods 802 are fixedly arranged at two ends of the bayonet braking piece 8, braking nuts 15 are connected to the braking screw rods 802 through threads, and the bayonet braking piece 8 is used for enlarging the diameter of the rubber chuck 7;
the bayonet lock brake block 801 on the bayonet lock brake member 8 is clamped inside the bayonet lock brake groove 701 of the rubber chuck 7, and in the process of drawing the bayonet lock brake member 8 outwards, the bayonet lock brake block 801 extrudes the bayonet lock brake groove 701 to increase the diameter of the rubber chuck 7, so that the rubber chuck 7 can be clamped inside the clamping groove 6 of the clamping block;
a plurality of frame assembly holes 11 are fixedly formed in the frame bottom plate 1 and the frame top plate 2, the frame assembly holes 11 are connected with a frame port sealing plate 12 through fastening bolts 14, a plurality of sealing plate assembly holes 13 are formed in the frame port sealing plate 12, the sealing plate assembly holes 13 correspond to the frame assembly holes 11, and the fastening bolts 14 penetrate through the sealing plate assembly holes 13 and are fixedly connected with the frame assembly holes 11;
the bayonet lock braking piece 8 penetrates through the rubber clamping head 7 and protrudes out of two end faces of the rubber clamping head 7, the braking screw rod 802 penetrates through the frame port sealing plate 12 and extends to the outer side face of the frame port sealing plate 12, the braking nut 15 is connected with the braking screw rod 802 in a screwing mode through threads, and the braking nut 15 is arranged on the outer side face of the frame port sealing plate 12;
after the rubber clamping head 7 on the frame top plate 2 is clamped into the clamping block clamping groove 6 on the frame bottom plate 1, the frame port sealing plate 12 is fixed on the frame bottom plate 1 and the frame top plate 2, the brake screw rod 802 on the bayonet lock braking part 8 penetrates through the frame port sealing plate 12 and is fastened through the brake nut 15, so that the bayonet lock braking part 8 can be pulled out by rotating the brake nut 15 clockwise, and the bayonet lock braking block 801 on the bayonet lock braking part 8 can slide in the bayonet lock braking groove 701, so that the purpose of increasing the diameter of the rubber clamping head 7 is achieved;
meanwhile, the tightness of the fit between the rubber clamping head 7 and the clamping block clamping groove 6 is increased, air can be prevented from entering the alloy frame through the clamping block clamping groove 6, components are oxidized, and the sealing performance of the whole alloy frame is improved;
further, a heat exhaust tube 4 is fixedly arranged between the clamping block slot 6 and the bottom frame clamping block 102, a refrigerating sheet groove 401 is formed in the heat exhaust tube 4, and a refrigerating sheet assembly 5 is arranged inside the refrigerating sheet groove 401;
the refrigeration piece assembly 5 comprises a refrigeration piece heat absorption surface 501 and a refrigeration piece heat dissipation surface 502, the refrigeration piece heat absorption surface 501 is arranged on the outer side surface of the heat dissipation cylinder 4, an inverter inner bin 18 is formed between the frame bottom plate 1 and the frame top plate 2, the refrigeration piece heat absorption surface 501 is arranged inside the inverter inner bin 18, the refrigeration piece heat dissipation surface 502 is arranged on the inner side surface of the heat dissipation cylinder 4, and the refrigeration piece assembly 5 is used for absorbing heat inside the inverter inner bin 18;
the side, communicated with the inverter inner bin 18, of the heat exhaust cylinder 4 is fixedly provided with the refrigerating sheet assembly 5, the refrigerating sheet heat absorption surface 501 on the refrigerating sheet assembly 5 can absorb heat inside the inverter inner bin 18 and dissipate the heat through the refrigerating sheet heat dissipation surface 502, the structure is simple, the heat inside the inverter inner bin 18 can be exhausted to the outside of an alloy frame, the heat inside the inverter inner bin 18 is reduced, components inside the inverter inner bin 18 can be protected, and the service life of the components is greatly prolonged;
meanwhile, a plurality of centrosymmetric exhaust grooves 402 are formed in one side surface of the heat extraction cylinder 4 corresponding to the refrigerating sheet groove 401, a heat dissipation fan 9 is fixedly arranged at one end inside the heat extraction cylinder 4, a heat dissipation cylinder ventilating grid 19 is fixedly arranged at an outer port of the heat extraction cylinder 4, a filtering window 17 is fixedly arranged on a frame port sealing plate 12, and the filtering window 17 is a stainless steel filtering window;
after the cooling fin cooling surface 502 discharges the heat into the inside of the heat discharging cylinder 4, the air flow rate inside the heat discharging cylinder 4 is increased through the cooling fan 9 inside the heat discharging cylinder 4, so that the heat inside the heat discharging cylinder 4 can be reduced, the purpose of reducing the temperature of the whole structure is achieved, the structure is simple, the use is convenient, the filtering window 17 and the cooling cylinder ventilating grid 19 can prevent the inside of the heat discharging cylinder 4 from entering dust, and the use safety and the service life of the cooling fan 9 are improved.
Furthermore, the top frame rotating block 201 is fixedly provided with a copper heat sink 3;
copper radiating piece 3 includes support piece 301 and fin 302, support piece 301 is the arc structure, support piece 301 and fin 302 fixed connection, fin 302 runs through a frame turning block 201 and extends to the lateral surface of a frame turning block 201, copper radiating piece 3 on a frame turning block 201 is the arc structure, support piece 301 can scatter and disappear the outside of storehouse 18 in the inverter to the heat in storehouse 18 in the inverter through the mode of heat transfer in can with the inverter, consequently, can reach radiating purpose, corresponding with refrigeration piece subassembly 5, simultaneously dispel the heat to the inside in storehouse 18 in the inverter, moreover, the steam generator is simple in structure, greatly improve radiating efficiency.
In this embodiment, as shown in fig. 2, a plurality of cushion pads 10 are attached to the inside of the frame bottom plate 1 and the frame top plate 2, sound-absorbing cotton 20 is arranged on the top frame engaging block 202, the sound-absorbing cotton 20 is of an L-shaped structure, so that the noise inside the component can be reduced, and in addition, the sound-absorbing cotton 20 is loose and porous, so that the dust inside the inverter inner bin 18 can be effectively absorbed, and the service life of the component can be greatly prolonged.
One side of the rubber chuck 7 is provided with a sealing strip 21, one end of the sealing strip 21 is fixedly arranged on the top frame clamping block 202, the other end of the top frame clamping block 202 abuts against the heat exhaust tube 4, and the sealing performance of the joint of the clamping block clamping groove 6 and the rubber chuck 7 is improved, so that the sealing performance of the whole device is improved.
In this embodiment, as shown in fig. 3, a visible window groove 203 is opened on the upper side surface of the frame top plate 2, a visible window 16 is fixedly arranged inside the visible window groove 203, and the visible window 16 is fixedly connected with the visible window groove 203 in an adhesive manner, so that the inside of the inverter inner bin 18 can be conveniently checked, and later maintenance and management are facilitated.
As shown in fig. 1 to 7, the method for installing an aluminum alloy frame structure of a photovoltaic inverter provided in this embodiment includes the following steps:
the method comprises the following steps: firstly, taking out the rubber clamp 7 on the top frame clamping block 202 from the clamping block clamping groove 6 on the bottom frame clamping block 102, and clockwise rotating the frame top plate 2 by 180 degrees;
step two: installing electrical components inside the inverter inner bin 18, and after the installation is finished, rotating the frame top plate 2 anticlockwise to clamp the rubber clamping head 7 in the clamping block clamping groove 6;
step three: fixing a frame port sealing plate 12 on a frame bottom plate 1 and a frame top plate 2 through fastening bolts 14, and extending a brake screw 802 out of the outer side surface of the frame port sealing plate 12 after penetrating through the frame port sealing plate 12;
step four: after the frame port sealing plate 12 is fixed, the brake nut 15 is firstly fastened with one brake screw 802, the bayonet lock brake part 8 slides in the rubber chuck 7, the diameter of the rubber chuck 7 is increased, the rubber chuck 7 and the clamping block clamping groove 6 are fastened, and then the other brake screw 802 is fixed with the frame port sealing plate 12.
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to achieve the technical effect basically.
It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or system in which the element is included.
The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The photovoltaic inverter aluminum alloy frame structure comprises a frame bottom plate (1) and a frame top plate (2) rotating on the frame bottom plate (1), and is characterized in that one end of the frame bottom plate (1) is connected with a clamping block clamping groove (6) through a bottom frame clamping block (102), one end of the frame top plate (2) is connected with a rubber clamping head (7) through a top frame clamping block (202), the clamping block clamping groove (6) and the rubber clamping head (7) are on the same vertical axis, and the rubber clamping head (7) is clamped and connected with the clamping block clamping groove (6);
a bayonet braking piece (8) is arranged in the rubber clamping head (7) in a sliding mode, a plurality of uniformly distributed bayonet braking blocks (801) are arranged on the bayonet braking piece (8), a bayonet braking groove (701) connected with the bayonet braking blocks (801) in a clamping mode is arranged in the rubber clamping head (7), two ends of the bayonet braking piece (8) are fixedly provided with a braking screw rod (802), the braking screw rod (802) is connected with a braking nut (15) through threads, and the bayonet braking piece (8) is used for enlarging the diameter of the rubber clamping head (7);
a heat discharge barrel (4) is fixedly arranged between the clamping block clamping groove (6) and the bottom frame clamping block (102), a refrigerating sheet groove (401) is formed in the heat discharge barrel (4), and a refrigerating sheet assembly (5) is arranged in the refrigerating sheet groove (401);
refrigerating plate subassembly (5) are including refrigerating plate heat-absorbing surface (501) and refrigerating plate cooling surface (502), refrigerating plate heat-absorbing surface (501) set up the lateral surface of a heat extraction section of thick bamboo (4), frame bottom plate (1) with storehouse (18) in the inverter is formed between frame roof (2), just refrigerating plate heat-absorbing surface (501) set up the inside in storehouse (18) in the inverter, refrigerating plate cooling surface (502) set up the medial surface of a heat extraction section of thick bamboo (4), refrigerating plate subassembly (5) are used for absorbing the inside heat in storehouse (18) in the inverter.
2. The aluminum alloy frame structure of the photovoltaic inverter as recited in claim 1, wherein: a plurality of frame assembling holes (11) are fixedly arranged on the frame bottom plate (1) and the frame top plate (2), the frame assembling holes (11) are connected with a frame port sealing plate (12) through fastening bolts (14), a plurality of sealing plate assembling holes (13) are formed in the frame port sealing plate (12), the sealing plate assembling holes (13) correspond to the frame assembling holes (11), and the fastening bolts (14) penetrate through the sealing plate assembling holes (13) and are fixedly connected with the frame assembling holes (11);
the clamping pin braking part (8) penetrates through the rubber clamping head (7) and protrudes out of two end faces of the rubber clamping head (7), the braking screw rod (802) penetrates through the frame port sealing plate (12) and extends to the outer side face of the frame port sealing plate (12), the braking nut (15) is connected with the braking screw rod (802) in a screwing mode through threads, and the braking nut (15) is arranged on the outer side face of the frame port sealing plate (12).
3. The aluminum alloy frame structure of the photovoltaic inverter as recited in claim 1, wherein: the fixed underframe turning block (101) that is provided with of one end of frame bottom plate (1), the one end of frame roof (2) is provided with top frame turning block (201), top frame turning block (201) with underframe turning block (101) are on same vertical axis, just underframe turning block (101) with top frame turning block (201) rotate to be connected, frame roof (2) pivoted angular range is 0-180.
4. The aluminum alloy frame structure of the photovoltaic inverter as recited in claim 3, wherein: a copper heat dissipation piece (3) is fixedly arranged on the top frame rotating block (201);
copper heat sink (3) are including backing sheet (301) and fin (302), backing sheet (301) are the arc structure, backing sheet (301) with fin (302) fixed connection, fin (302) run through top frame turning block (201) and extend to the lateral surface of top frame turning block (201).
5. The aluminum alloy frame structure of the photovoltaic inverter as recited in claim 1, wherein: a plurality of centrosymmetric exhaust grooves (402) are formed in one side face, corresponding to the refrigerating sheet groove (401), of the heat exhaust cylinder (4), a heat radiation fan (9) is fixedly arranged at one end inside the heat exhaust cylinder (4), and a heat radiation cylinder ventilating grid (19) is fixedly arranged at an outer port of the heat exhaust cylinder (4).
6. The aluminum alloy frame structure of the photovoltaic inverter as recited in claim 1, wherein: and a filtering window (17) is fixedly arranged on the frame port sealing plate (12), and the filtering window (17) is a stainless steel filtering window.
7. The aluminum alloy frame structure of the photovoltaic inverter as recited in claim 1, wherein: frame bottom plate (1) with the inside of frame roof (2) is attached with a plurality of blotter (10), be provided with on top frame block (202) and inhale sound cotton (20), inhale sound cotton (20) and be L type structure.
8. The aluminum alloy frame structure of the photovoltaic inverter as recited in claim 1, wherein: one side of rubber dop (7) is provided with sealing strip (21), the fixed setting of one end of sealing strip (21) is in on top frame block (202), the other end of top frame block (202) with heat removal section of thick bamboo (4) offset.
9. The aluminum alloy frame structure of the photovoltaic inverter as recited in claim 1, wherein: visual window groove (203) have been seted up to the side of going up of frame roof (2), the inside fixed visual window (16) that is provided with in visual window groove (203), visual window (16) through the mode of cementing with visual window groove (203) fixed connection.
10. A mounting method of a photovoltaic inverter aluminum alloy frame structure comprises the following steps:
the method comprises the following steps: firstly, taking out a rubber clamping head on a clamping block of a top frame from a clamping block clamping groove on a clamping block of a bottom frame, and clockwise rotating a top plate of a frame by 180 degrees;
step two: installing an electrical element in the inner bin of the inverter, and after the installation is finished, rotating the frame top plate anticlockwise to clamp the rubber clamping head in the clamping block clamping groove;
step three: fixing a frame port sealing plate on a frame bottom plate and a frame top plate through fastening bolts, and extending a brake screw rod out of the outer side surface of the frame port sealing plate after penetrating through the frame port sealing plate;
step four: after the frame port sealing plate is fixed, the braking nut is firstly fastened with one of the braking screw rods, the braking piece of the clamping pin slides in the rubber clamping head, the diameter of the rubber clamping head is increased, the rubber clamping head and the clamping block clamping groove are fastened, and then the other braking screw rod is fixed with the frame port sealing plate.
CN202111310828.3A 2021-11-08 2021-11-08 Photovoltaic inverter aluminum alloy frame structure and installation method thereof Active CN113992036B (en)

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CN106449837A (en) * 2016-12-16 2017-02-22 许昌学院 Air-cooling photovoltaic cell module
CN209994284U (en) * 2019-07-01 2020-01-24 广东招阳光伏科技发展有限公司 Photovoltaic inverter with safety performance
CN213342143U (en) * 2020-11-06 2021-06-01 深圳市鑫瑞盈电子有限公司 Photovoltaic inverter clamping structure and photovoltaic inverter
CN216086497U (en) * 2021-11-08 2022-03-18 张家港润盛科技材料有限公司 Photovoltaic inverter aluminum alloy frame structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150236599A1 (en) * 2014-02-19 2015-08-20 Lg Electronics Inc. Power conversion apparatus and photovoltaic module
CN106449837A (en) * 2016-12-16 2017-02-22 许昌学院 Air-cooling photovoltaic cell module
CN209994284U (en) * 2019-07-01 2020-01-24 广东招阳光伏科技发展有限公司 Photovoltaic inverter with safety performance
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