CN111683483A - Safety protection device for inverter of photovoltaic power station - Google Patents

Safety protection device for inverter of photovoltaic power station Download PDF

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Publication number
CN111683483A
CN111683483A CN202010593606.6A CN202010593606A CN111683483A CN 111683483 A CN111683483 A CN 111683483A CN 202010593606 A CN202010593606 A CN 202010593606A CN 111683483 A CN111683483 A CN 111683483A
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China
Prior art keywords
fixedly connected
cover
inverter
outer shell
damping
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Pending
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CN202010593606.6A
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Chinese (zh)
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夏喜明
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Individual
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Individual
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Priority to CN202010593606.6A priority Critical patent/CN111683483A/en
Publication of CN111683483A publication Critical patent/CN111683483A/en
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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
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • F16F15/085—Use of both rubber and metal springs
    • 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
    • H02M1/00—Details of apparatus for conversion
    • 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
    • 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
    • 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
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • 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
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0234—Feet; Stands; Pedestals, e.g. wheels for moving casing on floor
    • 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
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/03—Covers
    • 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
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/06—Hermetically-sealed casings
    • 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
    • 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)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Inverter Devices (AREA)

Abstract

The invention provides a safety protection device for an inverter of a photovoltaic power station, which comprises an outer shell, a base, an inner shell, side damping seats, a folded plate, a telescopic rod and a through pipe, wherein the side damping seats are arranged on the outer shell; the right side of the outer shell is connected with a right side cover through a hinge joint, and the front side of the right side cover is connected with the front part of the right side of the outer shell through a lock catch; the base is fixedly connected above the outer shell; the folded plates are fixedly connected to the upper surface and the lower surface of the inner part of the outer shell in four places; one end of the telescopic rod is fixedly connected to the upper surface and the lower surface of the interior of the outer shell, and the other end of the telescopic rod is fixedly connected to two ends of the side supporting plate; the side support plate is movably connected to the inner side of the folded plate; the inner shell is connected in the middle opening of the side support plates at two sides in a sliding manner; the anti-seismic performance of the inverter protective shell is improved, the probability that the inverter core assembly is damaged by vibration in the carrying process is reduced, the air flow direction can be limited by the aid of the air flow guide cover, heat dissipation is concentrated, and the heat dissipation effect is further improved.

Description

Safety protection device for inverter of photovoltaic power station
Technical Field
The invention belongs to the technical field of electric power safety protection devices, and particularly relates to a safety protection device for an inverter of a photovoltaic power station.
Background
The inverter converts direct current electric energy into alternating current. It is composed of inverter bridge, control logic and filter circuit. The electric energy conversion device is widely applicable to air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVDs (digital video recorders), VCDs (video compact disks), computers, televisions, washing machines, smoke exhaust ventilators, refrigerators, video recorders, massagers, fans, lighting and the like, in recent years, for advocating new energy power generation, the construction of photovoltaic power stations is more and more extensive, because the electric energy generated by photovoltaic panels is direct current, the electric energy is not convenient to transmit, therefore, the installation inverter can convert the direct current generated by the photovoltaic panels into alternating current, the transmission of the electric energy is convenient, a protective shell is usually arranged outside an inverter in the photovoltaic power stations, and the protection of the inverter.
For example, application No.: the invention discloses a safety protection device for an inverter of a photovoltaic power station, which comprises an inverter circuit, an outdoor protection device and a cooling system applied to a photovoltaic module, wherein the cooling system comprises a power module, a control unit and a cooling device, and the safety protection device comprises: the power module and the control unit are integrated inside the photovoltaic inverter; the cooling device is arranged at the photovoltaic assembly; the power supply module is used for supplying power to the control unit; the control unit transmits analog-digital signals with the photovoltaic module, the inverter circuit and the cooling device.
Based on the retrieval of above-mentioned patent to and the structure discovery among the combination prior art, the dc-to-ac converter in the above-mentioned patent is when using, because the mounted position particularity of photovoltaic board can know, the dc-to-ac converter need expose in the sufficient region of illumination for a long time, makes the temperature rise of inverter, influences the inverter life-span, in the maintenance and the test of carrying out the photovoltaic board, very easily collides with the inverter, can damage the inverter when serious, leads to the unable normal work of photovoltaic power generation equipment.
Disclosure of Invention
In order to solve the technical problems, the invention provides a safety protection device for an inverter of a photovoltaic power station, which aims to solve the problems that when the inverter in the patent is used, the inverter needs to be exposed in a region with sufficient illumination for a long time due to the particularity of the installation position of a photovoltaic panel, the temperature of the inverter is increased, the service life of the inverter is influenced, the inverter is easily collided during the overhaul and test of the photovoltaic panel, and the inverter is damaged seriously, so that the photovoltaic power generation equipment cannot work normally.
The invention relates to a safety protection device for an inverter of a photovoltaic power station, which has the purpose and the effect and is achieved by the following specific technical means:
a safety protection device for an inverter of a photovoltaic power station comprises an outer shell, a base, an inner shell, side damping seats, folded plates, telescopic rods and a through pipe; the right side of the outer shell is connected with a right side cover through a hinge joint, and the front side of the right side cover is connected with the front part of the right side of the outer shell through a lock catch; the base is fixedly connected above the outer shell; the folded plates are fixedly connected to the upper surface and the lower surface of the inner part of the outer shell in four places; one end of the telescopic rod is fixedly connected to the upper surface and the lower surface of the interior of the outer shell, and the other end of the telescopic rod is fixedly connected to two ends of the side supporting plate; the side support plate is movably connected to the inner side of the folded plate; the inner shell is connected in the middle opening of the side support plates at two sides in a sliding manner; the outer surface of the damping outer cylinder outside the side damping seat is fixedly connected to the left side of the inner surface of the shell of the outer shell, the inner side surface of the right side cover is also fixedly connected to the damping outer cylinder of the side damping seat, the side damping seat comprises a damping outer cylinder, a damping inner cylinder and a first spring, the damping outer cylinder is connected with the damping inner cylinder in a sliding mode, two ends of the first spring are fixedly connected to the inside of the damping outer cylinder and the inside of the damping inner cylinder respectively, and one-in-two parts of the first spring are arranged inside the side damping seat; the outer end of the through pipe is welded in the middle of the rear side of the outer shell in a downward inclined mode.
Further, the left side fixedly connected with of shell body goes out the gas hood, and goes out the inside of gas hood and pass through support fixedly connected with radiator fan's the base of giving vent to anger, the surface of gas hood is the downward sloping structure left, and the opening of gas hood is located the inboard, and the opening direction is down.
Further, the right side of the right side cover is fixedly connected with an air inlet cover, and the inside of the air inlet cover is fixedly connected with a base of an air inlet cooling fan through a support; the air inlet cover is designed to be inclined towards the lower right, the opening of the air inlet cover is positioned on the inner side, and the opening direction is downward.
Furthermore, the base comprises a heat insulation layer and a supporting foot seat, the heat insulation layer is fixedly connected to the upper portion of the supporting foot seat, and the heat insulation layer is made of a wooden square plate.
Further, square mounting grooves have been seted up on two front and back surfaces of interior casing, and fixedly connected with heat conduction strip in the mounting groove of interior casing, the fixed connection has air drainage cover on the surface of interior casing, and air drainage cover is the outside of arch parcel at heat conduction strip, the right side of interior casing is connected with the inner cover.
Furthermore, a square hole is formed in the middle of the side supporting plate, and square notches corresponding to the distribution positions of the air drainage covers are formed in the edge of the square hole of the side supporting plate.
Furthermore, the upper side and the lower side of the damping outer cylinder are respectively provided with a limiting groove, the upper surface and the lower surface of the damping inner cylinder are respectively fixedly connected with a limiting rod, and the other end of the damping inner cylinder is fixedly connected with a rubber gasket.
Furthermore, the telescopic rod is made of a cylindrical structure, a cylinder structure is inserted in the cylindrical structure, a second spring is sleeved outside the telescopic rod, and two ends of the second spring are fixedly connected to the inner surface of the outer shell and the upper end surface and the lower end surface of the side supporting plate.
Compared with the prior art, the invention has the following beneficial effects:
through the cooperation of the shell body and the right side cover of this structure, install respectively on shell body and the right side cover and go out the gas hood and admit air the cover, go out the inside of gas hood and admit air the cover and all install radiator fan, the air that the guide is external gets into from admitting air the cover, discharges from left admit air the cover, plays the air drainage effect. The problem of the present photovoltaic inverter that board was used is usually exposed under the illumination easily, make the temperature of dc-to-ac converter rise, can not in time lower the temperature, partial dc-to-ac converter still uses the protection casing as further protection, consequently aggravated the inhomogeneous condition of inverter heat dissipation, lead to the life-span of inverter to shorten easily, the condition that the fault rate risees, additionally, the vent of going out gas hood and inlet hood is all seted up in inboard below, can effectively avoid the rainwater to get into and cause the influence to photovoltaic inverter, moreover, the base that has the temperature shield is still installed to the shell body below, can reduce the high temperature propagation that comes from ground.
Through the cooperation of the inner shell and the side branch plate of the structure, the inner shell is movably connected inside the side branch plates on two sides, the inner shell can slide left and right on the side branch plates, the arrangement of the inner shell improves the sealing performance of the protective device and reduces the risk of rainwater entering, telescopic rods are connected above and below the side branch plates, springs are further sleeved outside the telescopic rods, the damping effect can be achieved, the stability of the protective device is improved, the outer sides of the side branch plates on two sides are respectively communicated with an air inlet area and an air outlet area, an inverter is arranged inside the inner shell and is contacted with heat conducting strips on the inner shell, the outer ends of the heat conducting strips extend to the outer side of the shell of the inner shell, the heat conducting strips are made of metal materials with good heat conducting performance, an air guide cover wraps the outer sides of the heat conducting strips, the air guide cover is connected with the air inlet area and the air outlet area on two sides, and guides air, through fully contacting with the heat conducting strip, the function of heat dissipation is realized, and the effect of restriction air flow direction can be realized to the air flow guide cover, and the heat dissipation is more concentrated.
Through the cooperation of the side cushion socket of this structure and interior casing, when the installation interior casing, the both sides face contact of side cushion socket and interior casing to press from both sides tight interior casing from both sides, the side cushion socket is telescopic machanism, and the internally mounted of side cushion socket has spring one, makes to have absorbing effect behind side cushion socket and the interior casing cooperation, and is more steady when making the dc-to-ac converter transport, reduces the probability that causes the damage because of vibrations destroy inside core assembly.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the base structure of the present invention.
FIG. 3 is a schematic view of a side panel structure according to the present invention.
Fig. 4 is a schematic structural view of the inverter mounted in the inner case of the present invention.
Fig. 5 is a schematic view of the inner structure of the inner case of the present invention.
Fig. 6 is a schematic view of the side mount structure of the present invention.
Figure 7 is a schematic diagram of a harness structure of the present invention.
Fig. 8 is a schematic view of the internal structure of the outer case of the present invention.
Fig. 9 is a partial enlarged view of fig. 2 a of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. an outer housing; 101. an air outlet cover; 1011. an air outlet heat dissipation fan; 2. a right side cover; 201. an air intake hood; 2011. an air intake heat dissipation fan; 3. a base; 301. a thermal insulation layer; 302. a support base; 4. a side support plate; 5. an inner housing; 501. a heat conducting strip; 502. an air-flow-guiding cover; 6. a lateral shock mount; 601. a shock-absorbing outer cylinder; 6011. a limiting groove; 602. a shock-absorbing inner cylinder; 6021. a limiting rod; 6022. a rubber gasket; 603. a first spring; 8. folding the plate; 9. a telescopic rod; 901. a second spring; 10. a through pipe.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in figures 1 to 9:
the invention provides a safety protection device for an inverter of a photovoltaic power station, which comprises an outer shell 1, a base 3, an inner shell 5, a side damping seat 6, a folded plate 8, a telescopic rod 9 and a wire passing pipe 10, wherein the outer shell is provided with a plurality of through holes; the right side of the outer shell 1 is connected with a right side cover 2 through a hinge joint, and the front side of the right side cover 2 is connected with the front part of the right side of the outer shell 1 through a lock catch; the base 3 is fixedly connected above the outer shell 1; the folded plates 8 are fixedly connected to the upper surface and the lower surface of the inner part of the outer shell 1 in four parts; one end of the telescopic rod 9 is fixedly connected to the upper surface and the lower surface of the interior of the outer shell 1, and the other end of the telescopic rod 9 is fixedly connected to two ends of the side supporting plate 4; the side support plate 4 is movably connected to the inner side of the folded plate 8; the inner shell 5 is connected in the middle opening of the side branch plates 4 at the two sides in a sliding way; the outer surface of the outer damping cylinder 601 outside the side damping seat 6 is fixedly connected to the left side of the inner surface of the shell of the outer shell 1, the inner surface of the right side cover 2 is also fixedly connected to the outer damping cylinder 601 of the side damping seat 6, the side damping seat 6 comprises the outer damping cylinder 601, the inner damping cylinder 602 and the first spring 603, the inner damping cylinder 602 is slidably connected to the inner side of the outer damping cylinder 601, two ends of the first spring 603 are respectively fixedly connected to the inner part of the outer damping cylinder 601 and the inner part of the inner damping cylinder 602, the first spring 603 is divided into two parts and arranged in the inner side damping seat 6, the upper and lower sides of the outer damping cylinder 601 are respectively provided with a limiting groove 6011, the upper and lower surfaces of the inner damping cylinder 602 are respectively fixedly connected with a limiting rod 6021, the other end of the inner damping cylinder 602 is fixedly connected with a rubber gasket 6022, the side damping seat 6 of the structure is as shown, the inner shell 5 is clamped from two sides, the side shock absorption seat 6 is a telescopic mechanism, and a first spring 603 is arranged in the side shock absorption seat 6, so that the side shock absorption seat 6 and the inner shell 5 have a shock absorption effect after being matched, the inverter is more stable in transportation, and damage caused by damage to an inner core component due to shock is reduced; the outer end of the vent pipe 10 is welded to the middle of the rear side of the outer case 1 with a downward inclination.
The left side of the outer shell 1 is fixedly connected with an air outlet cover 101, the interior of the air outlet cover 101 is fixedly connected with a base of an air outlet heat radiation fan 1011 through a support, the outer surface of the air outlet cover 101 is of a structure inclining leftwards and downwards, an opening of the air outlet cover 101 is positioned at the inner side, the opening direction faces downwards, the right side of the right side cover 2 is fixedly connected with an air inlet cover 201, and the interior of the air inlet cover 201 is fixedly connected with the base of an air inlet heat radiation fan 2011 through a support; the air inlet cover 201 is the angle design of below slope to the right, and the opening of air inlet cover 201 is located the inboard, and the opening direction is down, and the shell body 1 of this structure is as shown in fig. 8, installs air outlet cover 101 and air inlet cover 201 on shell body 1 and the right side lid 2 respectively, and radiator fan is all installed to the inside of air outlet cover 101 and air inlet cover 201, and the air that the guide is external gets into from air inlet cover 201, discharges from left air inlet cover 201, plays the air drainage effect. The problem of the present inverter for photovoltaic board expose under the illumination easily usually, make the temperature of inverter rise, can not in time lower the temperature, partial inverter still uses the protection casing as further protection, consequently aggravated the inhomogeneous condition of inverter heat dissipation, lead to the life-span of inverter to shorten easily, the condition that the fault rate risees, additionally, the vent of gas outlet cover 101 and inlet hood 201 is all seted up in inboard below, can effectively avoid the rainwater to get into and cause the influence to photovoltaic inverter, base 3 is including heat insulating layer 301 and leg base 302, the top fixedly connected with heat insulating layer 301 of leg base 302, and heat insulating layer 301 is made for wooden plate, base 3 of this structure is as shown in figure 2, base 3 that has the heat insulating plate is still installed to shell body 1 below, can reduce the high temperature propagation from ground.
Wherein, the front and back surfaces of the inner shell 5 are provided with square mounting grooves, and the mounting groove of the inner shell 5 is fixedly connected with a heat conducting strip 501, the surface of the inner shell 5 is fixedly connected with an air guide cover 502, and the air guide cover 502 is wrapped outside the heat conducting strip 501 in an arch shape, the right side of the inner shell 5 is connected with an inner side cover 503, the inner shell 5 of the structure is shown in figure 5, an inverter is installed inside the inner shell 5, the inverter is contacted with the heat conducting strip 501 on the inner shell 5, the outer end of the heat conducting strip 501 extends to the outer side of the shell of the inner shell 5, the heat conducting strip 501 is made of metal material with good heat conducting property, the outer surface of the inner shell 5 and the outer side of the heat conducting strip 501 are wrapped with the air guide cover 502, the air guide cover 502 is connected with the air inlet area and the air outlet area at two sides, the function of heat dissipation is realized, and the air flow direction can be limited by the air flow guide cover 502, so that heat dissipation is more concentrated.
Wherein, the square hole has been seted up in the centre of collateral branch board 4, and collateral branch board 4's square hole edge sets up the square notch that corresponds with air drainage cover 502 distribution position, collateral branch board 4 of this structure is as shown in fig. 3, telescopic link 9 has a cylinder structure to make for the interpolation of drum structure, and telescopic link 9 outside cover has two springs 901, and two ends fixed connection of spring 901 is on the internal surface of shell body 1 and collateral branch board 4's upper and lower both ends face, the telescopic link 9 cooperation side extension board 4 of this structure uses, the top and the below of side extension board 4 all are connected with telescopic link 9, the spring has still been cup jointed in the telescopic link 9 outside, can play absorbing effect, protection device's stability has been improved.
When in use: firstly, the right side cover 2 is opened, the inner shell 5 is drawn out from the side support plate 4, the inner side cover 503 of the inner shell 5 is opened, the inverter is placed in the inner shell 5, the electric connecting wire passes through the wire slot above the inner shell 5 and then passes through the through wire pipe 10 to be connected with the external photovoltaic plate, after the inner side cover 503 is buckled, the inner shell 5 is inserted into the side support plate 4, the right side cover 2 is buckled, the side shock absorbing seats 6 at two sides clamp the inner shell 5 from two sides, the inner shell 5 has the shock absorbing function in the horizontal direction, the upper part and the lower part of the side support plate 4 are both connected with the telescopic rods 9, the outer side of the telescopic rods 9 is sleeved with springs, the shock absorbing function in the vertical direction can be achieved, the shock absorbing performance of the inverter protective shell is improved, the probability that the internal inverter core component is damaged due to the shock generated in the carrying process is, heat conduction strip 501 is made for the metal material that thermal conductivity is good, at the surface of inner casing 5, heat conduction strip 501 outside parcel has air guide cover 502, air guide cover 502 connects the intake zone and the exhaust zone of both sides, the guide air gets into from air guide cover 502's right side, through fully contacting with heat conduction strip 501, carry out the heat exchange of air and fin, realize radiating function, utilize air guide cover 502 can realize the effect of restriction air flow direction, the heat dissipation is more concentrated, further improvement radiating effect, double-deck safety protection structure can further improve the leakproofness, cooperation shock-absorbing structure still can realize absorbing effect, destroy inside core assembly and cause the damage to vibrations when avoiding transportation or installation.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (8)

1. The utility model provides a safety device for photovoltaic power plant inverter which characterized in that: comprises an outer shell (1), a base (3), an inner shell (5), a side shock absorption seat (6), a folded plate (8), a telescopic rod (9) and a wire passing pipe (10); the right side of the outer shell (1) is connected with a right side cover (2) through a hinge, and the front side of the right side cover (2) is connected with the front part of the right side of the outer shell (1) through a lock catch; the base (3) is fixedly connected above the outer shell (1); the folded plates (8) are fixedly connected to the upper surface and the lower surface of the interior of the outer shell (1) in four parts; one end of the telescopic rod (9) is fixedly connected to the upper surface and the lower surface of the interior of the outer shell (1), and the other end of the telescopic rod (9) is fixedly connected to two ends of the side supporting plate (4); the side support plate (4) is movably connected to the inner side of the folded plate (8); the inner shell (5) is connected in the middle opening of the side support plates (4) at two sides in a sliding manner; the outer surface of a damping outer cylinder (601) on the outer side of the side damping seat (6) is fixedly connected to the left side of the inner surface of the shell of the outer shell (1), the inner surface of a right side cover (2) is fixedly connected to the damping outer cylinder (601) of the side damping seat (6), the side damping seat (6) comprises the damping outer cylinder (601), a damping inner cylinder (602) and a first spring (603), the damping inner cylinder (602) is slidably connected to the inside of the damping outer cylinder (601), two ends of the first spring (603) are fixedly connected to the inside of the damping outer cylinder (601) and the inside of the damping inner cylinder (602) respectively, and the first spring (603) is arranged in the side damping seat (6) in two parts; the outer end of the through pipe (10) is welded in the middle of the rear side of the outer shell (1) in a downward inclined mode.
2. The safety protection device for the inverter of the photovoltaic power station as claimed in claim 1, wherein: the left side fixedly connected with air outlet cover (101) of shell body (1), and the inside of air outlet cover (101) is through the base of support fixedly connected with air outlet radiator fan (1011), the surface of air outlet cover (101) is the structure that inclines down left, and the opening of air outlet cover (101) is located the inboard, and the opening direction is down.
3. The safety protection device for the inverter of the photovoltaic power station as claimed in claim 1, wherein: the right side of the right side cover (2) is fixedly connected with an air inlet cover (201), and the inside of the air inlet cover (201) is fixedly connected with a base of an air inlet cooling fan (2011) through a support; the air inlet cover (201) is designed in an angle inclined towards the lower right, the opening of the air inlet cover (201) is positioned on the inner side, and the opening direction is downward.
4. The safety protection device for the inverter of the photovoltaic power station as claimed in claim 1, wherein: the base (3) comprises a heat insulation layer (301) and a supporting foot seat (302), the heat insulation layer (301) is fixedly connected to the upper portion of the supporting foot seat (302), and the heat insulation layer (301) is made of a wooden square plate.
5. The safety protection device for the inverter of the photovoltaic power station as claimed in claim 1, wherein: the utility model discloses a heat conduction device, including interior casing (5), the front and back of interior casing (5) have seted up square mounting groove on two surfaces, and fixedly connected with heat conduction strip (501) in the mounting groove of interior casing (5), the fixed connection has air drainage cover (502) on the surface of interior casing (5), and air drainage cover (502) are the outside of arch parcel in heat conduction strip (501), the right side of interior casing (5) is connected with inner cover (503).
6. The safety protection device for the inverter of the photovoltaic power station as claimed in claim 1, wherein: the middle of the side supporting plate (4) is provided with a square hole, and the edge of the square hole of the side supporting plate (4) is provided with a square notch corresponding to the distribution position of the air drainage cover (502).
7. The safety protection device for the inverter of the photovoltaic power station as claimed in claim 1, wherein: the upper side and the lower side of the shock absorption outer cylinder (601) are respectively provided with a limiting groove (6011), the upper surface and the lower surface of the shock absorption inner cylinder (602) are respectively fixedly connected with a limiting rod (6021), and the other end of the shock absorption inner cylinder (602) is fixedly connected with a rubber gasket (6022).
8. The safety protection device for the inverter of the photovoltaic power station as claimed in claim 1, wherein: the telescopic rod (9) is made of a cylindrical structure, a cylinder structure is inserted in the cylindrical structure, a second spring (901) is sleeved outside the telescopic rod (9), and two ends of the second spring (901) are fixedly connected to the inner surface of the outer shell (1) and the upper end surface and the lower end surface of the side supporting plate (4).
CN202010593606.6A 2020-06-27 2020-06-27 Safety protection device for inverter of photovoltaic power station Pending CN111683483A (en)

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