WO2023020438A1 - 可调节光伏支架 - Google Patents

可调节光伏支架 Download PDF

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Publication number
WO2023020438A1
WO2023020438A1 PCT/CN2022/112520 CN2022112520W WO2023020438A1 WO 2023020438 A1 WO2023020438 A1 WO 2023020438A1 CN 2022112520 W CN2022112520 W CN 2022112520W WO 2023020438 A1 WO2023020438 A1 WO 2023020438A1
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WO
WIPO (PCT)
Prior art keywords
column
sealing ring
inner tube
adjustable photovoltaic
outer tube
Prior art date
Application number
PCT/CN2022/112520
Other languages
English (en)
French (fr)
Inventor
陈佳雨
全鹏
高纪凡
蔡叶超
Original Assignee
天合光能股份有限公司
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Publication date
Application filed by 天合光能股份有限公司 filed Critical 天合光能股份有限公司
Publication of WO2023020438A1 publication Critical patent/WO2023020438A1/zh

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    • 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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • 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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
    • F24S30/425—Horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/20—Arrangements for controlling solar heat collectors for tracking
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • 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
    • H02S20/00—Supporting structures for PV modules
    • H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
    • 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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking
    • 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

Definitions

  • the invention relates to the technical field of photovoltaic processing, in particular to an adjustable photovoltaic support.
  • seasonally adjustable brackets can adjust the mechanical structure to make photovoltaic modules at different inclination angles in the north-south direction, so that photovoltaic modules can receive more radiation in different seasons. Generally, it is designed to be adjusted 2 or 4 times a year according to the demand. According to PVsyst calculation and actual case summary, the power generation of seasonally adjustable supports is about 5% higher than that of fixed supports, the initial investment is increased by 1%, the annual operation and maintenance costs are increased by 15%, and the total return on investment (IRR) is increased by 0.5%. The cost of electricity (LOCE) was reduced by 0.004%.
  • Patent No. CN209805745U discloses a season-adjustable bracket, which has the following defects: (1) the push rod is directly exposed to the air. When the inside of the push rod is adsorbed on the surface of the inner tube, it will destroy the grease in the push rod and increase the wear of the push rod. (2) The adjustment technical scheme of the existing push rod has problems such as uncontrollable adjustment angle, over-travel of the push rod, and inability to synchronize multiple push rods, etc., which require a certain technical threshold for the adjustment operator. (3) With the development of large-scale components and high-power strings, large adjustment forces are required for adjustment, and high-altitude operations are required, causing great safety hazards.
  • the present invention provides a Adjustable photovoltaic support to solve the above problems.
  • an adjustable photovoltaic support including a turning platform and an angle adjustment assembly, the top of the turning platform is suitable for placing photovoltaic modules, and the bottom of the turning platform has a beam;
  • the angle There are two or more sets of adjustment components, and each set of angle adjustment components includes a column, a diagonal strut and a telescopic rod.
  • Tube, outer tube and driving mechanism for driving the inner tube to do telescopic movement one end of the diagonal brace is fixedly connected with the beam, the other end of the diagonal brace is hinged with the inner tube, and the outer tube is hinged with the column; the outer tube is far away from
  • the inner surface of one end of the column has a sealing groove suitable for accommodating the sealing ring, and the pressure plate is detachably fixed on the end of the outer tube so that the sealing ring is axially limited in the sealing groove.
  • the pressing plate has an L-shaped bending structure, and the pressing plate is pressed against the end faces of the outer tube and the sealing ring at the same time.
  • the contact surface between the pressure plate and the sealing ring is an inclined surface, and the inclined surface gradually slopes upward from outside to inside along the radial direction.
  • the angle adjustment assembly further includes a connecting sleeve, a mounting bracket is fixed on the column, one end of the connecting sleeve is hinged to the mounting bracket, and the other end of the connecting sleeve is fixedly connected to the outer tube.
  • the center of the connecting sleeve is rotatably connected with a rotating shaft parallel to the crossbeam;
  • the driving mechanism includes a screw threaded with the inner circumference of the inner tube, a first bevel gear fixedly connected with the rotating shaft, and a screw connected with the wire.
  • the rod is fixedly connected to the second bevel gear, the first bevel gear and the second bevel gear mesh with each other, and both the first bevel gear and the second bevel gear are axially limited in the connecting sleeve, and the inner tube and Outer tube slide connection.
  • a rotating bearing is sheathed on the beam above each column, and the outer ring of the rotating bearing is fixedly connected with the column.
  • the outer surface of the inner tube is provided with scale markings.
  • a connecting rod is connected between the connecting sleeves of two adjacent angle adjustment assemblies, and the connecting rod is connected to the rotating shaft through a universal joint.
  • the column is provided with a plurality of installation holes suitable for fixing the installation bracket along the height direction.
  • a plurality of marking lines are arranged at intervals in the axial direction on the screw rod, the inner tube and the outer tube have a transparent area where the marking lines can be observed, and a shielding sleeve is provided on the inner tube located in the transparent area .
  • the outer tube is arranged at the bottom, and a sealing ring wrapping the inner tube is arranged at the opening above the outer tube, and the sealing ring is pressed by a pressure plate, thereby preventing external impurities from entering the outer tube
  • the gap with the inner tube is also convenient to disassemble and clean the sealing ring, which can effectively avoid the wear of the push rod and achieve the purpose of waterproof and dustproof.
  • the adjustable photovoltaic support of the present invention ensures that the staff can observe the extension length of the push rod in real time through the scale mark or marking line, so as to quickly and conveniently confirm the real-time angle of the photovoltaic module and realize the visualization function of adjusting the angle.
  • the extension length of the telescopic rod is adjusted through the rotating shaft coaxial with the connecting rod, and each push rod can be pushed by only rotating the rotating shaft at one end, thus realizing single-person The purpose of adjusting the whole bracket, high-efficiency adjustment.
  • Fig. 1 is a perspective view of a specific embodiment of an adjustable photovoltaic support according to the present invention
  • Fig. 2 is a side view of the adjustable photovoltaic support of the present invention
  • Fig. 3 is the seal schematic diagram of inner pipe and outer pipe among the present invention.
  • Fig. 4 is an enlarged view of place a in Fig. 1;
  • Figure 5 is an enlarged view at b in Figure 1;
  • Fig. 6 is the front view of telescoping rod among the present invention.
  • Fig. 7 is the A-A direction sectional view of Fig. 6;
  • Figure 8 is an enlarged view at c in Figure 7;
  • Fig. 9 is a perspective view of the adapter in the present invention.
  • Fig. 10 is a schematic diagram of the positional relationship between the screw rod with the marking line and the shielding sleeve in the present invention.
  • an adjustable photovoltaic support includes an overturning platform 1 and an angle adjustment assembly 2.
  • the top of the overturning platform 1 is a platform suitable for placing photovoltaic components 3, and the bottom of the overturning platform 1 has a beam 103.
  • the crossbeam 103 is used to connect with the angle adjustment assembly 2.
  • the top platform 101 of the turning platform 1 is composed of multiple rods vertically and horizontally spliced to form a frame structure, but the embodiment of the present application is not limited thereto.
  • the top platform 101 also Lightweight plate-like structures can be used.
  • the beam 103 is arranged at the bottom of the top platform 101 along the longitudinal center of the top platform 101 , and extends along the transverse direction of the top platform 101 .
  • a fixed rod 102 is respectively connected to the top platform 101 on both lateral sides of the beam 103.
  • the fixed rods 102 on both sides form a triangular structure with the multi-bars extending longitudinally of the top platform 101, and the beam 103 is fixed at the center of the triangular structure.
  • multiple sets of fixing rods 102 can be provided to form multiple triangular structures.
  • each set of angle adjustment assemblies 2 includes a column 201 and a diagonal brace 202.
  • telescopic rod 203 column 201 is placed on the ground, and the top of column 201 is connected with crossbeam 103 rotations, is used for supporting turning table 1, and telescopic rod 203 comprises inner tube 2032, outer tube 2031 and driving inner tube 2032 of inner and outer sleeves as The drive mechanism for telescopic movement, the two ends of the diagonal brace 202 are respectively connected with the beam 103 and the inner tube 2032, specifically, one end of the diagonal brace 202 is fixedly connected with the beam 103, and the other end of the diagonal brace 202 is connected with the inner tube 2032 Hinged, the outer tube 2031 is hinged with the column 201, the diagonal strut 202, the column 201 and the telescopic rod 203 form a triangular structure, when the driving mechanism drives the inner tube 2032 to expand and contract, the inner tube 2032 drives one end of the diagonal strut 202 to move to make the diagonal strut 202 rotates around the beam 103, thereby driving the photovoltaic module 3 to
  • the telescopic rod 203 in this embodiment can be an electric push rod, and the driving mechanism is a driving motor at this time.
  • the column 201 is made of section steel, the bottom of the column 201 can be provided with a base plate 204, and the right-angled connection between the base plate 204 and the column 201 is provided with a reinforcing rib 205 to improve structural stability.
  • the column 201 in this embodiment is made of H-shaped steel, and it can also be A column 201 with a C-shaped, rectangular, circular or other shape in cross section is used.
  • the angle adjustment assembly 2 also includes a connecting sleeve 207 , and the column 201 is fixed with a mounting bracket 206 .
  • One end of the connecting sleeve 207 is hinged to the mounting bracket 206 , and the other end of the connecting sleeve 207 is fixedly connected to the outer tube 2031 .
  • two lugs 2061 are provided on the mounting bracket 206, and a hinge column 210 suitable for being inserted between the two lugs 2061 is provided on the connecting sleeve 207 towards the end of the column 201, and the lug 2061 and the hinge column 210 has an axially through shaft hole, that is, the shaft hole on the lug 2061 and the hinge column 210 is coaxially arranged so that the fixed shaft 208 passes through the shaft hole, and the two ends of the fixed shaft 208 pass through the pin shaft 209.
  • the connecting sleeve 207 can rotate around the fixed shaft 208.
  • One end of the connecting sleeve 207 facing the outer tube 2031 is sleeved on the outer periphery of the outer tube 2031 and fixed with the outer tube 2031 .
  • a mounting hole 2011 is provided on the column 201 for fixing with the mounting bracket 206 .
  • a plurality of installation holes 2011 suitable for fixing the installation bracket 206 are provided on the column 201 along the height direction. Mounting holes 2011 of different heights can be selected to fix the mounting bracket 206 according to needs, thereby improving the applicability and flexibility of the embodiment of the present application.
  • the outer tube 2031 is located at the bottom, and the inner tube 2032 faces upwards. Because the inner tube 2032 needs to do telescopic movement in the outer tube 2031, a transition fit is generally used, and the waterproof and dustproof level is not enough: generally speaking, water or sand and dust are easily adsorbed on The inner pipe 2032 enters the outer pipe 2031 through expansion and contraction, destroys the grease in the outer pipe 2031, increases the wear and tear of the telescopic rod 203, and affects the service life.
  • the present invention carries out following dustproof and waterproof design for this reason: on the outer tube 2031, the inner surface of one end away from the column 201 has a sealing groove 20311 suitable for accommodating the sealing ring 2033, and the pressing plate 2034 is detachably fixed on the end of the outer tube 2031, so that The sealing ring 2033 is axially limited in the sealing groove 20311 .
  • the sealing ring 2033 is wrapped around the outer circumference of the inner tube 2032, the outer circumference of the sealing ring 2033 fits the inner circumference of the outer tube 2031, that is, the inner circumference of the sealing groove 20311 fits, and the pressure plate 2034 is fixed on the outer tube 2031 by screws
  • the end of the seal ring 2033 is easily disassembled by adopting a detachable fixing method, and the seal ring 2033 can be cleaned and replaced regularly.
  • the pressing plate 2034 In order to press the sealing ring 2033 into the sealing groove 20311 , the pressing plate 2034 has an L-shaped bending structure, and the pressing plate 2034 is against the end surfaces of the outer tube 2031 and the sealing ring 2033 at the same time.
  • the pressure plate 2034 is ring-shaped as a whole, and the inner edge extends downwards to form a sleeve structure, so that the cross-sectional shape of the pressure plate 2034 is an L-shaped bending structure.
  • the pressure plate 2034 is sleeved on the outer periphery of the inner tube 2032, and the radial The plate covers the end of the outer tube 2031 and is detachably connected to the outer tube 2031 by screws; the axial plate of the pressure plate 2034 is pressed against the end surface of the sealing ring 2033 for compressing the sealing ring 2033 .
  • the diagonal strut 202 can be fixed with the crossbeam 103 by the clip 211, which is convenient for disassembly.
  • the column 201 is fixedly connected.
  • the crossbeam 103 is preferably a square beam.
  • the rotating bearing 212 adopts a bearing with an outer circle and an inner square to cooperate with the crossbeam 103.
  • Column 201 is fixed.
  • the embodiments of the present application do not limit the shapes of the crossbeam 103 and the rotating bearing 212.
  • the crossbeam 103 can also be a circular beam, and the diagonal brace 202 and the crossbeam 103 can be fixedly connected. That's it.
  • the contact surface between the pressure plate 2034 and the sealing ring 2033 is set as an inclined surface, and the inclined surface gradually slopes upward from outside to inside along the radial direction.
  • the pressure of the pressure plate 2034 on the sealing ring 2033 has a component force towards the surface of the inner tube 2032, thereby pushing the sealing ring 2033 to the direction of the inner tube 2032 to ensure that the sealing ring 2033 is attached to the inner tube 2032 , while the L-shaped structure of the pressure plate 2034 can protect and shield the contact gap between the sealing ring 2033 and the outer tube 2031 .
  • the contact surface of the sealing ring 2033 and the pressure plate 2034 is correspondingly set as an inclined surface, so as to further improve the sealing effect between the sealing ring 2033 and the inner tube 2032 .
  • This embodiment is different from the driving mechanism in the above-mentioned embodiments.
  • the center of the connecting sleeve 207 is rotationally connected with a rotating shaft 214 parallel to the beam 103;
  • the second bevel gears 2037 are axially limited in the connecting sleeve 207 , and the inner tube 2032 is slidably connected to the outer tube 2031 .
  • the screw rod 2035 is sleeved on the inner circumference of the inner tube 2032, and a nut 2038 is fixed on the inner circumference of the inner tube 2032.
  • the second bevel gear 2037 is sleeved on the outer periphery of the screw mandrel 2035, and the rotating shaft 214 and the screw mandrel 2035 are vertically arranged.
  • the meshing effect makes the rotation movement, because the inner tube 2032 is slidingly connected with the outer tube 2031, so the inner tube 2032 can only do linear telescopic movement, when the screw rod 2035 rotates, the inner tube 2032 is driven to move in a straight line under the action of the nut 2038.
  • the rotating shaft 214 can be driven by an electric wrench or a rocker to rotate.
  • the telescopic rod 203 can form a self-lock, so that the photovoltaic module 3 can be maintained at a specified angle, thereby achieving low input torque and high holding force. Effect. Because the part that drives the telescopic rod 203 to lift is located below, a reasonable working height is ensured and high-altitude operations are avoided.
  • this embodiment is further improved as follows: as shown in Figure 1 and Figure 5, a connecting rod 215 is connected between the connecting sleeves 207 of two adjacent angle adjustment assemblies 2, and the connecting rod 215 passes through
  • the universal joint 216 is connected to the rotating shaft 214 .
  • the universal joint 216 is an existing technology, which can adjust the coaxiality of each connecting rod 215, and is convenient for on-site installation and stable operation during angle adjustment.
  • each rotating shaft 214 is connected by a connecting rod 215, as long as the rotating shaft 214 at one end is rotated, each angle adjustment assembly 2 can be rotated by a specified angle at the same time, thereby realizing single-person operation and improving the efficiency of angle adjustment.
  • a scale mark is provided on the outer surface of the inner tube 2032, and the scale mark usually refers to a digital scale line.
  • the scale mark needs to be exposed to the outside, and is easy to be worn away. Therefore, this embodiment is improved to the following structure: a plurality of marking lines 20351 are arranged at intervals in the axial direction on the screw rod 2035, and the inner tube 2032 and the outer tube 2031 There is a transparent area on which the marking line 20351 can be observed, and a shielding sleeve 2039 is provided on the inner tube 2032 located in the transparent area.
  • the transparent area can be located in some areas of the inner tube 2032 and the outer tube 2031, or the inner tube 2032 and the outer tube 2031 can be made of transparent material as a whole.
  • the setting of the transparent area can facilitate the observation of the marking line 20351 and the
  • the relative position of the shielding sleeve 2039, the shielding sleeve 2039 is made of a non-transparent material, as shown in Figure 10, three marking lines 20351 are arranged in an array on the screw mandrel 2035, and each marking line 20351 can adopt a different color, or can be placed on the marking line. Different scale marks are drawn on the line 20351.
  • the distance between the hinged holes at both ends of the telescopic rod 203 is 910mm.
  • the distance between the hinged holes at both ends of the telescopic rod 203 is 1125mm.
  • the distance between the hinged holes at both ends is 1420mm, and this embodiment can be adjusted to three designated angles. Ensure that the staff can quickly adjust to the specified angle and realize the visualization function of angle adjustment.
  • the stroke scale design on the screw rod 2035 not only avoids the risk of over-travel of the telescopic rod 203, but also reduces the need to adjust the angle of the photovoltaic module 3 Angle 2 This verification work greatly improves the security and convenience of the system.
  • the embodiment of the present application does not limit the distance between the hinge holes at both ends of the telescopic rod 203 corresponding to the marking line 20351 , and those skilled in the art can adjust the setting according to the actual situation.
  • the adapter 217 is a U-shaped structure, the two arms of the adapter 217 are fixed to both sides of the column 201, and the arms are provided with The middle hole 2171 and two or more than two adjustment holes 2172 arranged in an array centered on the middle hole 2171, two fixing holes are arranged on the column 201, and the middle hole 2171 is fixed with one of the fixing holes, according to the upper surface plane of the column 201 Select the appropriate adjustment hole 2172 to be fixed with another fixing hole on the column 201, so that the upper surface of the adapter 217 is kept as horizontal as possible, and the adaptability of the support to the slope ground is increased.
  • the adjustment hole 2172 can be a waist circular hole. Increase the adjustment error of foundation construction.

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Abstract

本发明公开了一种可调节光伏支架，包括翻转台和角度调节组件，翻转台的顶部适于放置光伏组件，翻转台的底部具有横梁；所述角度调节组件包括立柱、斜撑杆和伸缩杆，所述立柱适于支撑翻转台并与横梁转动连接，所述伸缩杆包括内外套接的内管、外管和驱动内管作伸缩运动的驱动机构，所述斜撑杆的一端与横梁固定连接，斜撑杆的另一端与内管铰接，外管与立柱铰接；所述外管上远离立柱的一端内表面具有适于容纳密封圈的密封槽，压板可拆卸固定于外管的端部，以使密封圈轴向限位于密封槽内。本发明在外管上方的开口处设置包裹内管的密封圈，并通过压板压紧密封圈，从而避免外界杂质进入外管与内管的间隙，实现防水和防尘的目的。

Description

可调节光伏支架 技术领域
本发明涉及光伏加工技术领域，尤其涉及一种可调节光伏支架。
背景技术
相比于固定支架，季节可调支架可以通过调整机械结构使光伏组件在南北向上处于不同的倾斜角度，以便在不同季节，使光伏组件能够接收更多辐照。一般根据需求设计成一年可以调2次或者4次。根据PVsyst计算和实际案例总结显示，季节可调支架比固定支架发电量提升约5％，初设投资增加1％，每年运维费用提升15％，全投资收益率(IRR)提升0.5％，度电成本(LOCE)降低0.004％。
专利号CN209805745U中公开了一种季节可调支架，该支架具有如下缺陷：(1)推杆直接暴露于空气中，由于推杆具有相对运动的内管和外管，当雨水或者沙尘进入到推杆内部并吸附在内管表面时，会破坏推杆内的油脂，加大推杆的磨损。(2)现有推杆的调节技术方案，存在调节角度不可控，推杆使用超行程，多个推杆无法同步等问题，对调节操作人员要有一定的技术门槛。(3)随着组件大尺寸化，组串大功率化的发展，调节时所需调节力大，且需在高空作业，造成了很大的安全隐患。
发明内容
为了解决现有技术中的季节可调支架暴露于外部环境中时，推杆容易受到雨水或者沙尘的侵蚀，导致推杆磨损，影响推杆的正常伸缩的技术问题，本发明提供了一种可调节光伏支架来解决上述问题。
本发明解决其技术问题所采用的技术方案是：一种可调节光伏支架，包括翻转台和角度调节组件，所述翻转台的顶部适于放置光伏组件，翻转台的底部具有横梁；所述角度调节组件设有两组或者两组以上，每组角度调节组件包括立柱、斜撑杆和伸缩杆，所述立柱适于支撑翻转台并与横梁转动连接，所述伸缩杆包括内外套接的内管、外管和驱动内管作伸缩运动的驱动机构，所述斜撑杆的一端与横梁固定连接，斜撑杆的另一端与内管铰接，外管与立柱铰接；所述外管上远离立柱的一端内表面具有适于容纳密封圈的密封槽，压板可拆卸固定于外管的端部，以使密封圈轴向限位于密封槽内。
进一步的，所述压板为L形折弯结构，压板同时抵在外管和密封圈的端面。
进一步的，所述压板与密封圈的接触面为斜面，且所述斜面沿径向由外至内逐渐向上倾斜。
进一步的，所述角度调节组件还包括连接套筒，立柱上固定有安装支架，连接套筒的一端与安装支架铰接，连接套筒的另一端与外管固定连接。
进一步的，所述连接套筒的中心转动连接有与横梁平行的转动轴；所述驱动机构包括与内管的内周螺纹连接的丝杆、与转动轴固定连接的第一伞齿轮和与丝杆固定连接的第二伞齿轮，所述第一伞齿轮和第二伞齿轮相互啮合、且第一伞齿轮和第二伞齿轮均轴向限位于所述连接套筒内，所述内管与外管滑动连接。
进一步的，位于每个立柱上方的横梁上套设有转动轴承，所述转动轴承的外圈与立柱固定连接。
进一步的，所述内管的外表面设置有刻度标识。
进一步的，相邻两个所述角度调节组件的连接套筒之间连接有连杆，所述连杆通过万向节与转动轴连接。
进一步的，所述立柱上沿高度方向设有多个适于固定安装支架的安装 孔。
进一步的，所述丝杆上轴向间隔布置有多个标线，所述内管和外管上具有能够观察所述标线的透明区域，位于所述透明区域的内管上设有遮挡套。
本发明的有益效果是：
(1)本发明所述的可调节光伏支架，将外管设置于下方，并在外管上方的开口处设置包裹内管的密封圈，并通过压板压紧密封圈，从而避免外界杂质进入外管与内管的间隙，也便于拆卸清洗密封圈，有效避免推杆的磨损，实现防水和防尘的目的。
(2)本发明所述的可调节光伏支架，通过刻度标识或者标线保证工作人员可以实时观察到推杆的伸出长度，从而快速便捷地确认光伏组件的实时角度，实现调节角度可视化功能。
(3)本发明所述的可调节光伏支架，相邻角度调节组件通过连杆连接，可以实现每个角度调节组件同步调节的效果。
(4)本发明所述的可调节光伏支架，伸缩杆通过与连杆同轴的转动轴调节伸出长度，只需要旋转一端的转动轴，即可推动每个推杆，从而实现了单人调节整个支架、高效率调节的目的。
附图说明
下面结合附图和实施例对本发明进一步说明。
图1是本发明所述的可调节光伏支架的具体实施方式的立体图；
图2是本发明所述的可调节光伏支架的侧视图；
图3是本发明中内管与外管的密封示意图；
图4是图1中a处放大图；
图5是图1中b处放大图；
图6是本发明中伸缩杆的主视图；
图7是图6的A-A向剖视图；
图8是图7中c处放大图；
图9是本发明中所述转接件的立体图；
图10是本发明中带有标线的丝杆与遮挡套的位置关系示意图。
图中，1、翻转台，101、顶部平台，102、固定杆，103、横梁，2、角度调节组件，201、立柱，2011、安装孔，202、斜撑杆，203、伸缩杆，2031、外管，20311、密封槽，2032、内管，2033、密封圈，2034、压板，2035、丝杆，20351、标线，2036、第一伞齿轮，2037、第二伞齿轮，2038、螺母，2039、遮挡套，204、底板，205、加强筋，206、安装支架，2061、支耳，207、连接套筒，208、固定轴，209、销轴，210、铰接柱，211、卡箍，212、转动轴承，213、轴承安装座，214、转动轴，215、连杆，216、万向节，217、转接件，2171、中间孔，2172、调节孔，3、光伏组件。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
实施例一
如图1-图5所示，一种可调节光伏支架，包括翻转台1和角度调节组件2，翻转台1的顶部为适于放置光伏组件3的平台，翻转台1的底部具有横梁103，横梁103用于与角度调节组件2连接，本实施例中，翻转台1的顶部平台101由多杆纵横拼接组成框形结构，但是本申请实施例并不以此为限，例如顶部平台101也可以采用轻量化的板状结构。横梁103沿顶部平台101的纵向中心设置于顶部平台101的底部，并且沿顶部平台101的横向延 伸设置。位于横梁103的横向两侧的顶部平台101上分别连接一固定杆102，两侧的固定杆102与顶部平台101的沿纵向延伸的多杆组成三角形结构，横梁103固定于所述三角形结构的中心，由于横梁103的尺寸较长，因此可以设置多组固定杆102形成多个三角形结构。
角度调节组件2设有两组或者两组以上，具体数量根据光伏组件3的尺寸设置，本实施例中角度调节组件2设有四组，每组角度调节组件2包括立柱201、斜撑杆202和伸缩杆203，立柱201放置在地面上，立柱201的顶部与横梁103转动连接，用于支撑翻转台1，伸缩杆203包括内外套接的内管2032、外管2031和驱动内管2032作伸缩运动的驱动机构，斜撑杆202的两端分别与横梁103及内管2032连接，具体来说，斜撑杆202的一端与横梁103固定连接，斜撑杆202的另一端与内管2032铰接，外管2031与立柱201铰接，斜撑杆202、立柱201和伸缩杆203组成三角形结构，当驱动机构驱动内管2032伸缩时，内管2032带动斜撑杆202的一端运动使斜撑杆202绕横梁103旋转，从而带动光伏组件3倾斜，由于斜撑杆202旋转过程中，伸缩杆203与立柱201的夹角会产生变化，因此外管2031与立柱201铰接，且外管2031与立柱201的铰接轴与横梁103平行。本实施例中的伸缩杆203可以为电动推杆，此时驱动机构为驱动电机。
立柱201采用型钢制成，立柱201的底部可以设置底板204，底板204和立柱201的直角连接处设置加强筋205，提高结构稳定性，本实施例中的立柱201采用H型钢制成，也可以采用横截面为C形、矩形、圆形或者其他形状的立柱201。
立柱201与伸缩杆203的铰接方式为：角度调节组件2还包括连接套筒207，立柱201上固定有安装支架206。连接套筒207的一端与安装支架206铰接，连接套筒207的另一端与外管2031固定连接。如图5所示，安装支架206上设有两个支耳2061，连接套筒207上朝向立柱201的一端设置适 于插入两个支耳2061之间的铰接柱210，支耳2061和铰接柱210上具有轴向贯通的轴孔，即支耳2061及铰接柱210上的轴孔同轴设置，以便于固定轴208穿过轴孔，并在固定轴208的两端通过销轴209进行轴向限位，避免固定轴208与支耳2061及铰接柱210的轴孔脱落，从而提高连接的稳定性，连接套筒207则可以绕固定轴208旋转。连接套筒207上朝向外管2031的一端套在外管2031的外周并与外管2031固定。如图5所示，立柱201上设置安装孔2011，用于与安装支架206固定。为了能够根据实际情况调节伸缩杆203的安装高度，作为优选的，立柱201上沿高度方向设有多个适于固定安装支架206的安装孔2011。可以根据需要选择不同高度的安装孔2011固定安装支架206，从而提高本申请实施例的适用性及灵活性。
本实施例中外管2031位于下方，内管2032朝上，因内管2032需要在外管2031内做伸缩运动，一般采用过渡配合，防水和防尘等级不够：通常来说水或沙尘易吸附在内管2032上，通过伸缩进入外管2031内，破坏外管2031内的油脂，加大了伸缩杆203的磨损，影响使用寿命。为此本发明进行如下防尘和防水设计：外管2031上远离立柱201的一端内表面具有适于容纳密封圈2033的密封槽20311，压板2034可拆卸固定于外管2031的端部，以使密封圈2033轴向限位于密封槽20311内。如图3所示，密封圈2033包裹于内管2032外周，密封圈2033的外周与外管2031的内周贴合，即与密封槽20311的内周贴合，压板2034通过螺钉固定在外管2031的端部，采用可拆卸固定方式便于密封圈2033的拆装，可以定期清洗和更换密封圈2033。为了使密封圈2033压紧在密封槽20311内，压板2034为L形折弯结构，压板2034同时抵在外管2031和密封圈2033的端面。进一步的，压板2034整体为环形，且内缘向下延伸为套筒结构，以使压板2034的截面形状为L形折弯结构，压板2034套设于内管2032的外周，压板2034的径向板盖合于外管2031的端部，并且与外管2031通过螺钉可拆卸连接；压板2034 的轴向板顶抵于密封圈2033的端面上，以用于压紧密封圈2033。
如图2及图4所示，斜撑杆202可以通过卡箍211与横梁103固定，便于拆卸，位于每个立柱201上方的横梁103上套设有转动轴承212，转动轴承212的外圈与立柱201固定连接。为了避免两者斜撑杆202与横梁103相对旋转，横梁103优选采用方形梁，此时转动轴承212采用外圆内方的轴承，用于与横梁103配合，转动轴承212通过轴承安装座213与立柱201固定。但是本申请实施例并不限定横梁103及转动轴承212的形状，例如横梁103也可以采用圆形梁，斜撑杆202与横梁103采用固定连接方式即可，转动轴承212对应横梁103的形状设置即可。
实施例二
为了使密封圈2033更加贴合内管2032，提高防尘防水效果，本实施例将压板2034与密封圈2033的接触面设置为斜面，且所述斜面沿径向由外至内逐渐向上倾斜。当压板2034压紧密封圈2033时，压板2034对密封圈2033的压力具有朝向内管2032表面的分力，从而将密封圈2033推向内管2032方向，保证密封圈2033与内管2032贴合，而压板2034的L形结构则可以对密封圈2033与外管2031的接触间隙起到保护遮挡作用。进一步的，密封圈2033的与压板2034的接触面对应设置为斜面，从而进一步提高密封圈2033与内管2032之间的密封效果。
实施例三
本实施例与上述实施例中的驱动机构不同，具体的，连接套筒207的中心转动连接有与横梁103平行的转动轴214；所述驱动机构包括与内管2032的内周螺纹连接的丝杆2035、与转动轴214固定连接的第一伞齿轮2036和与丝杆2035固定连接的第二伞齿轮2037，第一伞齿轮2036和第二伞齿轮2037相互啮合、且第一伞齿轮2036和第二伞齿轮2037均轴向限位于连接套筒207内，内管2032与外管2031滑动连接。如图6-图8所示，丝杆2035 套设在内管2032的内周，内管2032的内周固定一螺母2038，螺母2038与丝杆2035螺纹配合，第一伞齿轮2036套在转动轴214外周，第二伞齿轮2037套在丝杆2035外周，并且转动轴214和丝杆2035垂直布置，当旋转转动轴214时，丝杆2035通过第一伞齿轮2036和第二伞齿轮2037的啮合作用进行旋转运动，由于内管2032与外管2031滑动连接，因此内管2032仅能作直线伸缩运动，当丝杆2035旋转时，在螺母2038作用下内管2032被带动作直线运动。
本实施例中转动轴214可以采用电动扳手或者摇杆驱动旋转，转动轴214不旋转时，伸缩杆203可以形成自锁，使光伏组件3维持在指定角度，从而达到低输入扭矩，高保持力的效果。由于驱动伸缩杆203升降的部位位于下方，保证了合理的作业高度，避免高空作业。
实施例四
在实施例三的基础上，本实施例作如下进一步改进：如图1和图5所示，相邻两个角度调节组件2的连接套筒207之间连接有连杆215，连杆215通过万向节216与转动轴214连接。万向节216为现有技术，可以调节每个连杆215的同轴度，方便现场安装和角度调节时运行平稳。并且由于每个转动轴214通过连杆215连接，因此只要旋转位于一端的转动轴214即可使每个角度调节组件2同时旋转指定角度，从而实现单人操作，提高角度调节的效率。
实施例五
为了能够实时观察内管2032的伸出长度，避免伸缩杆203使用超行程，本实施例在内管2032的外表面设置有刻度标识，所述刻度标识通常指数字刻度线。
实施例六
在实施例五中，刻度标识需要暴露在外部，容易被磨损消失，为此本实 施例改进为如下结构：丝杆2035上轴向间隔布置有多个标线20351，内管2032和外管2031上具有能够观察标线20351的透明区域，位于所述透明区域的内管2032上设有遮挡套2039。所述透明区域可以位于内管2032和外管2031的部分区域，也可以将内管2032和外管2031整体采用透明材质制成，透明区域的设置可以便于观察丝杆2035上的标线20351与遮挡套2039的相对位置，遮挡套2039采用非透明材质制成，如图10所示，丝杆2035上阵列布置有三个标线20351，每个标线20351可以采用不同的颜色，也可以在标线20351上划上不同的刻度标记，当遮挡套2039的左端与左数第一个标线20351的右端对齐时，伸缩杆203的两端铰接孔的距离为910mm，当遮挡套2039的左端与左数第二个标线20351的右端对齐时，伸缩杆203的两端铰接孔的距离为1125mm，当遮挡套2039的左端与左数第三个标线20351的右端对齐时，伸缩杆203的两端铰接孔的距离为1420mm，该实施例可以进行三个指定角度的调节。保证工作人员可以快速调节到指定角度，实现角度调节的可视化功能，丝杆2035上的行程刻度设计，既避免了伸缩杆203的超行程风险，又减少了角度调节时需要对光伏组件3角度二次验证的工作，大大提高系统的安全性和便捷性。但是本申请实施例并不限定标线20351对应的伸缩杆203的两端铰接孔的距离，本领域技术人员可以根据实际情况自行调整设置。
实施例七
当工作场地不平整时，立柱201的上表面会有一定倾斜，为了使轴承与立柱201的安装面尽量保持平行，本实施例作如下改进，立柱201的轴承安装座213之间还连接有转接件217，如图2、图4及图9所示，转接件217为U形结构，转接件217的两个臂部与立柱201的两侧固定，并且所述臂部上设置有中间孔2171和以中间孔2171为中心阵列布置的两个或者两个以上的调节孔2172，立柱201上设置两个固定孔，中间孔2171与其中一个固 定孔固定，根据立柱201的上表面平面度选择适当的调节孔2172与立柱201上的另一个固定孔固定，使转接件217的上表面尽量保持水平，增加支架对坡度地面的自适应性，调节孔2172可以为腰圆形孔，增加基础施工的调节误差。
在本发明的描述中，需要理解的是，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本说明书中，对所述术语的示意性表述不一定指的是相同的实施例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例中以合适的方式结合。
以上述依据本发明的理想实施例为启示，通过上述的说明内容，相关工作人员完全可以在不偏离本项发明技术思想的范围内，进行多样的变更以及修改。本项发明的技术性范围并不局限于说明书上的内容，必须要根据权利要求范围来确定其技术性范围。

Claims (10)

  1. 一种可调节光伏支架，其特征在于，包括：
    翻转台(1)，所述翻转台(1)的顶部适于放置光伏组件(3)，翻转台(1)的底部具有横梁(103)；
    角度调节组件(2)，所述角度调节组件(2)设有两组或者两组以上，每组角度调节组件(2)包括立柱(201)、斜撑杆(202)和伸缩杆(203)，所述立柱(201)适于支撑翻转台(1)并与横梁(103)转动连接，所述伸缩杆(203)包括内外套接的内管(2032)、外管(2031)和驱动内管(2032)作伸缩运动的驱动机构，所述斜撑杆(202)的一端与横梁(103)固定连接，斜撑杆(202)的另一端与内管(2032)铰接，外管(2031)与立柱(201)铰接；
    所述外管(2031)上远离立柱(201)的一端内表面具有适于容纳密封圈(2033)的密封槽(20311)，压板(2034)可拆卸固定于外管(2031)的端部，以使密封圈(2033)轴向限位于密封槽(20311)内。
  2. 根据权利要求1所述的可调节光伏支架，其特征在于：所述压板(2034)为L形折弯结构，压板(2034)同时抵在外管(2031)和密封圈(2033)的端面。
  3. 根据权利要求2所述的可调节光伏支架，其特征在于：所述压板(2034)与密封圈(2033)的接触面为斜面，且所述斜面沿径向由外至内逐渐向上倾斜。
  4. 根据权利要求1所述的可调节光伏支架，其特征在于：所述角度调节组件(2)还包括连接套筒(207)，立柱(201)上固定有安装支架(206)， 连接套筒(207)的一端与安装支架(206)铰接，连接套筒(207)的另一端与外管(2031)固定连接。
  5. 根据权利要求4所述的可调节光伏支架，其特征在于：所述连接套筒(207)的中心转动连接有与横梁(103)平行的转动轴(214)；
    所述驱动机构包括与内管(2032)的内周螺纹连接的丝杆(2035)、与转动轴(214)固定连接的第一伞齿轮(2036)和与丝杆(2035)固定连接的第二伞齿轮(2037)，所述第一伞齿轮(2036)和第二伞齿轮(2037)相互啮合、且第一伞齿轮(2036)和第二伞齿轮(2037)均轴向限位于所述连接套筒(207)内，所述内管(2032)与外管(2031)滑动连接。
  6. 根据权利要求1所述的可调节光伏支架，其特征在于：位于每个立柱(201)上方的横梁(103)上套设有转动轴承(212)，所述转动轴承(212)的外圈与立柱(201)固定连接。
  7. 根据权利要求1所述的可调节光伏支架，其特征在于：所述内管(2032)的外表面设置有刻度标识。
  8. 根据权利要求5所述的可调节光伏支架，其特征在于：相邻两个所述角度调节组件(2)的连接套筒(207)之间连接有连杆(215)，所述连杆(215)通过万向节(216)与转动轴(214)连接。
  9. 根据权利要求4所述的可调节光伏支架，其特征在于：所述立柱(201)上沿高度方向设有多个适于固定安装支架(206)的安装孔(2011)。
  10. 根据权利要求5所述的可调节光伏支架，其特征在于：所述丝杆 (2035)上轴向间隔布置有多个标线(20351)，所述内管(2032)和外管(2031)上具有能够观察所述标线(20351)的透明区域，位于所述透明区域的内管(2032)上设有遮挡套(2039)。
PCT/CN2022/112520 2021-08-17 2022-08-15 可调节光伏支架 WO2023020438A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110168241A1 (en) * 2008-12-18 2011-07-14 Et Energy Company Limited Photo-Voltaic Power Generation Equipment that Can Automatically Track the Sun
CN106655999A (zh) * 2016-12-26 2017-05-10 北京天诚同创电气有限公司 光伏支架及光伏电池板清洁机试验台
CN210780650U (zh) * 2019-10-11 2020-06-16 上海能耀新能源科技有限公司 一种含动态三角形跟踪支撑结构的光伏跟踪支架及其系统
CN211791384U (zh) * 2020-03-24 2020-10-27 东莞市帕瓦莱斯智能科技有限公司 多推杆同步驱动的光伏跟踪支架
CN112564603A (zh) * 2020-12-17 2021-03-26 上海能耀新能源科技有限公司 一种副横梁及其与主梁的连接结构以及光伏跟踪支架

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110168241A1 (en) * 2008-12-18 2011-07-14 Et Energy Company Limited Photo-Voltaic Power Generation Equipment that Can Automatically Track the Sun
CN106655999A (zh) * 2016-12-26 2017-05-10 北京天诚同创电气有限公司 光伏支架及光伏电池板清洁机试验台
CN210780650U (zh) * 2019-10-11 2020-06-16 上海能耀新能源科技有限公司 一种含动态三角形跟踪支撑结构的光伏跟踪支架及其系统
CN211791384U (zh) * 2020-03-24 2020-10-27 东莞市帕瓦莱斯智能科技有限公司 多推杆同步驱动的光伏跟踪支架
CN112564603A (zh) * 2020-12-17 2021-03-26 上海能耀新能源科技有限公司 一种副横梁及其与主梁的连接结构以及光伏跟踪支架

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