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CN-121984416-A - Full back contact type hidden crack resistant photovoltaic module structure

CN121984416ACN 121984416 ACN121984416 ACN 121984416ACN-121984416-A

Abstract

The invention discloses a full back contact type hidden crack resistant photovoltaic module structure, and relates to the technical field of photovoltaic equipment. The photovoltaic panel fixing device comprises a supporting frame, wherein a photovoltaic panel is arranged in the supporting frame, a fixing frame is fixedly connected to the surface of the photovoltaic panel, an adjusting assembly is arranged in the supporting frame, and the adjusting assembly comprises a positioning hole formed in the fixing frame and a fixing screw rod penetrating through the bottom of the supporting frame. According to the invention, the photovoltaic panel can be flexibly clamped and position corrected when the support is settled or deformed by arranging the adjusting component, hidden cracking caused by rigid compression is avoided, the cooling component efficiently conducts out heat through the heat conducting silica gel and the circulating water cooling system, thermal stress damage is reduced, the inclination angle of the photovoltaic panel is adjustable by the telescopic component, the power generation efficiency is optimized, structural stress is reduced, the design of the full back contact electrode and the structure without the front grid line are radically reduced, the stress concentration point is reduced, and the hidden cracking resistance, the heat dissipation performance and the long-term running stability of the photovoltaic module under a complex environment are remarkably improved.

Inventors

  • WANG KAI
  • WANG YING

Assignees

  • 江苏实禹光电科技有限公司

Dates

Publication Date
20260505
Application Date
20251229

Claims (10)

  1. 1. The full-back contact type hidden crack resistant photovoltaic module structure comprises a supporting frame (1) and is characterized in that a photovoltaic plate (2) is arranged inside the supporting frame (1), and a fixing frame (3) is fixedly connected to the surface of the photovoltaic plate (2); The photovoltaic panel (2) is characterized in that an adjusting component (4) is arranged in the supporting frame (1), the adjusting component (4) comprises a positioning hole (401) formed in the fixing frame (3), a fixing screw (402) penetrating through the bottom of the supporting frame (1), a top clamping plate (403) in threaded connection with the surface of the fixing screw (402), a bottom clamping plate (404) sleeved on the surface of the fixing screw (402), and a fixing plug (405) arranged on one side opposite to the top clamping plate (403) and the bottom clamping plate (404), and the photovoltaic panel (2) is adjusted and positioned through the adjusting component (4); The cooling device comprises a supporting frame (1), a cooling assembly (5) arranged at the bottom of the supporting frame (1), and a cooling assembly (5) arranged at the bottom of the supporting frame (3), wherein the cooling assembly (5) comprises a heat dissipation shell (501) arranged at the bottom of the fixing frame (3), a heat conduction plate (502) arranged in the heat dissipation shell (501), a circulating pipe (503) arranged at one side of the heat conduction plate (502), a water tank (504) arranged at the bottom of the supporting frame (1), a conveying water pump (505) communicated with the top of the water tank (504), and the cooling assembly (5) is used for accelerating the heat discharge in the photovoltaic panel (2); the support frame (1) bottom is provided with flexible subassembly (6), flexible subassembly (6) are including installing in crossbeam (601) of support frame (1) bottom, install in regulation seat (602) on crossbeam (601) surface, swing joint in telescopic link (603) of regulation seat (602) bottom, and sliding connection is in pillar (604) on telescopic link (603) surface, adjusts the location angle of photovoltaic board (2) through flexible subassembly (6).
  2. 2. The full back contact type hidden crack resistant photovoltaic module structure of claim 1, wherein all positive and negative metal electrodes of the photovoltaic panel (2) are positioned at the bottom, and no metal grid line is arranged on the front surface of the photovoltaic panel (2) so as to reduce stress sources of hidden cracks.
  3. 3. The full back contact type hidden crack resistant photovoltaic module structure according to claim 1, wherein the adjusting assembly (4) further comprises a threaded pipe (406) arranged inside the supporting frame (1), an adjusting screw (407) in threaded connection with the threaded pipe (406), and an adjusting block (408) arranged at the top of the adjusting screw (407).
  4. 4. The full back contact type hidden crack resistant photovoltaic module structure of claim 1, wherein a guide rail plate (7) is fixedly connected to one side of each of the top clamping plate (403) and the bottom clamping plate (404), a sliding groove (8) is formed in the top of the supporting frame (1), and the guide rail plate (7) is slidably connected with the inner wall of the sliding groove (8).
  5. 5. The full back contact type hidden crack resistant photovoltaic module structure according to claim 1, wherein one end of the circulating pipe (503) is communicated with the water tank (504), a water outlet at one side of the conveying water pump (505) is communicated with the circulating pipe (503) through a pipeline, and a connecting pipe (9) is arranged between the two groups of circulating pipes (503).
  6. 6. The full back contact type hidden crack resistant photovoltaic module structure according to claim 5, wherein a positioning shell (10) is movably connected to the surface of the connecting pipe (9), internal threads (11) are formed in the positioning shell (10), and external thread columns (12) are fixedly connected to the surface of the circulating pipe (503).
  7. 7. The full back contact type hidden crack resistant photovoltaic module structure of claim 1, wherein a temperature sensor (13) is fixedly connected inside the heat dissipation shell (501), one side of the heat conduction plate (502) is fixedly connected with heat conduction silica gel (14), and one side of the heat conduction silica gel (14) is in contact with the photovoltaic panel (2).
  8. 8. The full back contact type hidden crack resistant photovoltaic module structure of claim 1, wherein the two sides of the heat dissipation shell (501) are fixedly connected with mounting plates (15), and the mounting plates (15) are fixed with the fixing frame (3) through bolts.
  9. 9. The full back contact type hidden crack resistant photovoltaic module structure of claim 1, wherein an adjusting bolt (16) is arranged on one side of the support column (604) in a penetrating manner, and an adjusting hole (17) is formed on one side of the telescopic rod (603).
  10. 10. The full back contact type hidden crack resistant photovoltaic module structure according to claim 1, wherein the fixing plug (405) is made of rubber, and air holes (18) are formed in the fixing plug (405).

Description

Full back contact type hidden crack resistant photovoltaic module structure Technical Field The invention belongs to the technical field of photovoltaic equipment, and particularly relates to a full back contact type hidden crack resistant photovoltaic module structure. Background The photovoltaic module, commonly called a solar panel, is a core component of a solar power generation system. The solar energy direct conversion device is used for directly converting solar energy into direct-current electric energy. The photovoltaic module is mainly formed by serially or parallelly packaging a plurality of photovoltaic cells, is externally protected by high-light-transmittance toughened glass, waterproof sealing adhesive films and weather-proof backboard, is provided with an aluminum alloy frame, has the advantages of no noise, no pollution, simplicity in maintenance, long service life (usually more than 25 years) and the like, is extremely wide in application, and is integrated from a household roof distributed power station, an industrial and commercial factory building to a large-scale ground photovoltaic power station, a photovoltaic building, a space spacecraft and an off-grid power supply system, the conversion efficiency of the module is continuously improved, the cost is continuously reduced, the reliability is increasingly enhanced, and solar power generation is being promoted to occupy more and more important positions in a global energy structure. In the long-term outdoor operation of the existing photovoltaic module, uneven subsidence of supporting points can be caused by ground subsidence and deformation of a support structure, integral or local bending of the module is caused, concentrated tensile or shearing stress can be generated on an internal battery piece by macroscopic bending of a plate, the macroscopic bending of the plate becomes a direct mechanical cause for inducing hidden cracks, on the other hand, cyclic thermal stress is generated by materials of each layer of the module due to difference of thermal expansion coefficients due to temperature difference between day and night and seasons, and the battery piece is easy to fatigue hidden cracks due to long-term action. Therefore, we provide a full back contact type anti-hidden crack photovoltaic module structure for solving the above problems. Disclosure of Invention The invention aims to provide a full back contact type hidden crack resistant photovoltaic module structure, which solves the problems that after a photovoltaic module in the prior art is used for a long time, a bracket can sink to cause bending of a plate and hidden crack of a photovoltaic panel can be accelerated after heat is accumulated in the plate through structural cooperation of an adjusting module, a cooling module and a telescopic module. In order to solve the technical problems, the invention is realized by the following technical scheme. The invention discloses a full back contact type hidden crack resistant photovoltaic module structure, which comprises a supporting frame, wherein a photovoltaic plate is arranged in the supporting frame, a fixing frame is fixedly connected to the surface of the photovoltaic plate, an adjusting assembly is arranged in the supporting frame and comprises a positioning hole formed in the fixing frame, a fixing screw rod penetrating through the bottom of the supporting frame, a top clamping plate connected to the surface of the fixing screw rod in a threaded manner, a bottom clamping plate sleeved on the surface of the fixing screw rod, a fixing plug arranged on the opposite side of the top clamping plate and the bottom clamping plate and used for adjusting and positioning the photovoltaic plate through the adjusting assembly, a cooling assembly is arranged at the bottom of the supporting frame and comprises a heat dissipation shell arranged at the bottom of the fixing frame, a heat conducting plate arranged in the heat conducting shell, a circulating pipe arranged at one side of the heat conducting plate, a water tank arranged at the bottom of the supporting frame and a conveying water pump communicated with the top of the water tank, a telescopic assembly is arranged at the bottom of the supporting frame and used for accelerating heat discharge of the photovoltaic plate through the cooling assembly, and comprises a cross beam arranged at the bottom of the supporting frame, an adjusting seat arranged on the surface of the fixing screw rod, a fixing plug arranged on the surface of the fixing screw rod and a telescopic assembly. The invention further provides that all the positive and negative metal electrodes of the photovoltaic panel are positioned at the bottom, and the front surface of the photovoltaic panel is free of metal grid lines, so that hidden crack stress sources are reduced. The invention further provides that the adjusting assembly further comprises a threaded pipe arranged in the supporting frame, an adjusting screw ro