# US 11,909,349 B2 · Main beam and application thereof, and photovoltaic tracking support > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,909,349 B2 - Document ID: US11909349B2 - Status: Granted - Kind: B2 - Application number: 17/286,881 - Filed: 2020-01-17 - Published: 2021-12-09 - Granted: 2024-02-20 - Earliest claimed: 2019-02-28 - Assignees: Arctech Solar Holding Co., Ltd. - Applicants: Arctech Solar Holding Co., Ltd. - Inventors: Shitao Wang; Pengxiao Yu; Jianmin Li - Web page: https://patentgrep.com/patent/US11909349B2 ## CPC - H02S 30/10: Frame structures - F24S 25/00: Arrangement of stationary mountings or supports for solar heat collector modules - F24S 25/60: Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules - F24S 25/70: with means for adjusting the final position or orientation of supporting elements in relation to each other or to a mounting surface; with means for compensating mounting tolerances - F24S 30/40: for rotary movement - H02S 20/32: specially adapted for solar tracking - H02S 40/22: Light-reflecting or light-concentrating means (directly associated with the PV cell or integrated with the PV cell H10F77/42) - Y02E 10/47: Mountings or tracking - Y02E 10/50: Photovoltaic [PV] energy - Y02E 10/52: PV systems with concentrators - H02S: GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES (obtaining electrical energy from radioactive sources G21H1/12; light sensitive inorganic semiconductor devices H10F; light sensitive organic semiconductor devices H10K30/00; thermoelectric devices H10N10/00; pyroelectric devices H10N15/00) - F24S: SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS (for producing mechanical power from solar energy F03G6/00) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract Disclosed are a main beam and a use thereof and a photovoltaic tracking bracket, wherein the main beam includes a flat plate and an elliptical curved plate, each of both ends of the flat plate are respectively fixedly connected to a corresponding end of the elliptical curved plate to form a ring shape, and a plane where the flat plate is located is perpendicular to a long axis of an ellipse where the elliptical curved plate is located. Also provided is the use of the main beam in the photovoltaic tracking bracket. The photovoltaic tracking bracket includes the main beam; a stand column; and a bearing seat comprising a bearing ring, a Z-shaped support plate and a bottom plate connected sequentially from top to bottom, wherein the Z-shaped support plate has a Z-shaped cross section, the main beam is installed inside the bearing ring, the flat plate of the main beam faces a photovoltaic assembly, and the bottom plate is connected to the stand column. Under the premise of ensuring the same thickness, the main beam of the present invention improves the resistance moment of the lateral cross section and saves costs, and when applied to the photovoltaic tracking bracket, the main beam can slow down the hot spot effect of the double-sided photovoltaic assembly and prolong the service life of the same. ## Claims ### Claim 1 A photovoltaic tracking bracket for use with a photovoltaic assembly, the photovoltaic tracking bracket comprising: a main beam comprising a flat plate; a stand column; a bearing seat comprising a bearing ring, a Z-shaped support plate and a bottom plate connected sequentially from top to bottom, the Z-shaped support plate having a Z-shaped cross section in a horizontal direction, the main beam being installed inside the bearing ring, the flat plate of the main beam configured to face the photovoltaic assembly, and the bottom plate being connected to the stand column; and a stand column top seat comprising a first connecting plate, wherein: both ends of the first connecting plate extend towards the stand column to form a second connecting plate, the second connecting plate is connected to the stand column, the first connecting plate is perforated with a first horizontal adjustment waist hole, the bottom plate is perforated with a second horizontal adjustment waist hole corresponding to the first horizontal adjustment waist hole, the first horizontal adjustment waist hole and the second horizontal adjustment waist hole are locked via a bolt, a long axis of the first horizontal adjustment waist hole and a long axis of the second horizontal adjustment waist hole are perpendicular to each other, and the long axis of the first horizontal adjustment waist hole is parallel or perpendicular to an extension direction of the main beam. ### Claim 2 (depends on 1) The photovoltaic tracking bracket according to claim 1, wherein two of the first horizontal adjustment waist holes are provided and symmetrical about a center of the first connecting plate, two of the second horizontal adjustment waist holes are provided and symmetrical about a center of the bottom plate. ### Claim 3 (depends on 1) The photovoltaic tracking bracket according to claim 1, wherein each of the second connecting plates is provided with a vertical adjustment waist hole and a vertical fixing hole, the stand column is provided with a stand column adjustment waist hole corresponding to the vertical adjustment waist hole, the stand column is provided with a stand column fixing hole corresponding to the vertical fixing hole, a long axis of the vertical adjustment waist hole and a long axis of the stand column adjustment waist hole are perpendicular to each other, the stand column adjustment waist hole and the vertical adjustment waist hole are fastened via a bolt, the stand column fixing hole and the vertical fixing hole are fastened via a bolt. ### Claim 4 (depends on 1) The photovoltaic tracking bracket according to claim 1, wherein: a first end of the main beam is a shrinkable pipe section formed by extruding the first end of the main beam, an inner surface of the shrinkable pipe section is welded or riveted with a locking nut; and the shrinkable pipe section of the main beam extends into a second end of an adjacent main beam, a locking bolt sequentially passes through the second end of the adjacent main beam and the shrinkable pipe section of the main beam and is fastened by screwing to a corresponding locking nut. ### Claim 5 (depends on 4) The photovoltaic tracking bracket according to claim 4, wherein a plurality of locking nuts are provided and are evenly arranged on the inner surface of the shrinkable pipe section of the main beam, the locking nuts are the locking bolts are provided in one-to-one correspondence. ### Claim 6 (depends on 1) The photovoltaic tracking bracket according to claim 1, wherein, the main beam further comprises an elliptical curved plate, each of both ends of the flat plate being respectively fixedly connected to a corresponding end of the elliptical curved plate to form a ring shape, and a plane where the flat plate is located being perpendicular to a long axis of an ellipse where the elliptical curved plate is located. ### Claim 7 (depends on 6) The photovoltaic tracking bracket according to claim 6, wherein, a transition section is provided between the flat plate and the elliptical curved plate, and an outer surface of the transition section is smooth. ### Claim 8 (depends on 7) The photovoltaic tracking bracket according to claim 7, wherein, a reflective layer is provided on an outer surface of the flat plate and the transition section. ### Claim 9 (depends on 1) A method of using a photovoltaic tracking bracket with a photovoltaic assembly, comprising providing the photovoltaic tracking bracket as defined in claim 1, wherein the photovoltaic tracking bracket is installed with a double-sided photovoltaic assembly.