CN113437924A

CN113437924A - Photovoltaic cell assembly

Info

Publication number: CN113437924A
Application number: CN202110530060.4A
Authority: CN
Inventors: 鲍伏节; 谢佳伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-09-24

Abstract

The invention belongs to the technical field of photovoltaics, and particularly relates to a photovoltaic cell assembly which comprises a photovoltaic cell panel and a bracket; the number of the brackets is two; the photovoltaic cell assembly also comprises a first sliding block; the bottom of the bracket is fixedly connected to the water bottom, a water tank is arranged at the bottom of the bracket, and a water flowing hole is formed in the outer wall of the bottom of the bracket and communicated with the water tank; the upper end surface of the bracket is provided with a displacement groove which is communicated with the water tank, and a first sliding block is connected in the displacement groove in a sliding manner; the first sliding block can push the photovoltaic cell panel to move up and down under the buoyancy action of water; according to the photovoltaic cell module, the drain hole is formed in the support and communicated with an external water source, and the drain hole is matched with the first sliding block in the displacement groove in a manner that the first sliding block is influenced by the water level to move up and down, so that the first sliding block drives the photovoltaic cell panel to move up and down, a certain distance is kept between the photovoltaic cell panel and the water surface, the photovoltaic cell panel can stably and normally operate, the working efficiency of the photovoltaic cell module is improved, and the service life of the photovoltaic cell module is prolonged.

Description

Photovoltaic cell assembly

Technical Field

The invention belongs to the technical field of photovoltaics, and particularly relates to a photovoltaic cell assembly.

Background

Because the output voltage of the single solar cell is low and the electrodes of the unpackaged cells are easy to fall off due to the influence of the environment, a certain number of single cells are sealed into the photovoltaic module in a series-parallel connection mode so as to avoid the corrosion of the cell electrodes and interconnection wires; the existing photovoltaic power generation field relates to overwater photovoltaic power generation, the overwater photovoltaic power generation has many advantages, such as the overwater photovoltaic power generation is established on the water surface, land resources are not occupied, land acquisition cost can be reduced, but the defects of the overwater photovoltaic power generation are obvious, the overwater photovoltaic power generation is easily influenced by the water level, the water level is easy to rise to cover a photovoltaic cell panel, water and dirt on the surface of the photovoltaic cell panel can cause PID (proportion integration differentiation) effect and hot spot effect, so that an assembly fails, the glue is easy to age and fail due to the water, and the water directly enters the cell panel to cause damage; in recent years, solutions related to photovoltaic power generation on water are proposed, such as floating photovoltaic cells, but the solutions have a plurality of defects, floating equipment is required for supporting a photovoltaic cell panel in floating photovoltaic on water, and a floating body stand has high requirements on corrosion resistance, low density, frost heaving resistance, wind wave resistance, service life, bearing capacity and the like;

the utility model discloses a photovoltaic cell and subassembly as an application number CN 201911341265.7's chinese patent, including photovoltaic cell board, be used for suppressing the unrestrained magnetism of photovoltaic cell board bottom water to twist and restrain unrestrained mechanism and be used for guiding wind-force to carry out the drainage ventilation mechanism that the narrow and small space in bottom ventilates, photovoltaic cell board includes toughened glass, battery piece and backplate, and the battery piece is located between toughened glass and the backplate, and the backplate is located the top of battery piece, and the backplate is located the below of battery piece, relates to the photovoltaic field. According to the technical scheme, the special mechanism is arranged, the two mechanisms are closely combined and linked together, the height of the photovoltaic on water is effectively reduced, meanwhile, erosion of water waves and water vapor is inhibited, and aging of the photovoltaic cell is delayed, so that the problems that the general photovoltaic cell is easy to age and yellow under the combined action of the water vapor and illumination, the power generation efficiency is gradually reduced, the water vapor on water is large, the illumination reflection is strong, the photovoltaic on water aging speed is high, and the replacement cost is high are effectively solved; however, the technical scheme has obvious defects, the problem that the water level rises to influence the photovoltaic cell panel is not considered, when the water level rises to cover the photovoltaic cell panel, the EVA glue in the cell panel is aged and yellowed after being contacted with water for a long time, the daylighting degree of the cell is directly influenced, and the power generation efficiency of the photovoltaic cell panel is also directly influenced, so that the limitation of the technical scheme is caused.

In view of the above, in order to overcome the above technical problems, the present invention provides a photovoltaic cell assembly, which solves the above technical problems.

Disclosure of Invention

In order to make up for the defects of the prior art, a drain hole is formed in the support and communicated with an external water source, a cavity is formed in the first sliding block, and the first sliding block is matched with the first sliding block in the displacement groove in a vertical displacement mode under the influence of the water level, so that the first sliding block drives the photovoltaic cell panel to move vertically, and the distance between the photovoltaic cell panel and the water surface is guaranteed; meanwhile, the photovoltaic cell panel is hinged with the first sliding block, when the water surface fluctuates, the photovoltaic cell panel can slightly shake, dust and water drops on the surface of the photovoltaic cell panel can shake and slide along with the photovoltaic cell panel, the surface of the photovoltaic cell panel is ensured to be clean, the photovoltaic cell panel can normally operate, and the working efficiency and the service life of a photovoltaic cell module are improved;

the technical scheme adopted by the invention for solving the technical problems is as follows: a photovoltaic cell assembly comprises a photovoltaic cell panel and a bracket; the number of the brackets is two; the method is characterized in that: the photovoltaic cell assembly also comprises a first sliding block; the bottom of the bracket is fixedly connected to the water bottom, a water tank is arranged at the bottom of the bracket, and a water flowing hole is formed in the outer wall of the bottom of the bracket and communicated with the water tank; the upper end surface of the bracket is provided with a displacement groove which is communicated with the water tank, and a first sliding block is connected in the displacement groove in a sliding manner; the upper end surface of the first sliding block is hinged with the back of the photovoltaic cell panel, the back of the photovoltaic cell panel is provided with a sliding groove, and the hinged part is in sliding connection in the sliding groove; a cavity is arranged in the first sliding block, and the cross section of the cavity is rectangular; the reverse sides of the opposite surfaces of the two sliding blocks are provided with air inflation holes; the first sliding block can push the photovoltaic cell panel to move up and down under the buoyancy action of water;

when in work; the photovoltaic cell on water is easily influenced by the water level, the photovoltaic cell panel is easily covered by the rising of the water level to cause PID effect and hot spot effect, so that the assembly is invalid, the glue is easily aged and invalid by the water, and the water directly enters the cell panel to cause damage; the floating photovoltaic cell needs floating equipment to support the photovoltaic cell panel, and the floating body stand has higher requirements on corrosion resistance, low density, frost heaving resistance, wind wave resistance, service life, bearing capacity and the like;

therefore, the photovoltaic cell is irradiated by sunlight, and the sunlight irradiates on a semiconductor p-n junction in the cell panel to form a new hole-electron pair; under the action of a p-n junction electric field, holes flow from the n region to the p region, electrons flow from the p region to the n region, and current is formed after a circuit is switched on; in order to ensure smooth power generation of the photovoltaic cell, inert gas is injected into a cavity of the first sliding block in a pressurizing mode, and the sectional area of the first sliding block is 40 cm-40 cm; the cavity in the first sliding block is pressurized and injected with inert gas through the inflation hole, and then the inflation hole is blocked; the density of the inert gas is less than that of air, air buoyancy can be generated, and the buoyancy larger than 0.1N can be generated due to the large volume of the cavity; the first sliding block is made of PA66 material, the density of the first sliding block is low, the photovoltaic cell panel is a semi-flexible photovoltaic cell panel, and the weight of the first sliding block is 1 kg; when the difference between the water level inside and outside the bracket reaches 1m, the water buoyancy can support the sliding block to rise; when the water level rises, the difference between the water level inside and outside the bracket reaches 1m, and because the water level is higher than the water flowing holes, water outside the bracket flows into the water tank through the water flowing holes according to the principle of the communicating vessel, the water level inside the water tank rises and enters the displacement tank, and the volume of the water inside the displacement tank is increased; the pressure intensity of the bottom surface of the first sliding block is increased, and the first sliding block slowly rises under the action of buoyancy, so that the hinged photovoltaic cell panel is driven to rise, and the photovoltaic cell panel is ensured not to be in contact with the water surface;

according to the invention, the drain hole is arranged in the bracket and communicated with an external water source, the cavity is arranged in the first sliding block, and the first sliding block is matched with the first sliding block in the displacement groove in an up-and-down displacement manner under the influence of the water level, so that the first sliding block drives the photovoltaic cell panel to move up and down, and the distance between the photovoltaic cell panel and the water surface is ensured; meanwhile, the photovoltaic cell panel is hinged with the first sliding block, when the water surface fluctuates, the photovoltaic cell panel can slightly shake, dust and water drops on the surface of the photovoltaic cell panel can shake and slide along with the photovoltaic cell panel, the surface of the photovoltaic cell panel is ensured to be clean, the photovoltaic cell panel can normally operate, and the working efficiency and the service life of a photovoltaic cell module are improved;

preferably, the photovoltaic cell assembly further comprises a displacement sensor and a controller; the displacement sensor is embedded in the lower end face of the first sliding block, and a pull rope of the displacement sensor is fixedly connected to the bottom of the displacement groove; the opposite side surfaces of the two brackets are provided with a first groove, and a sliding plate is arranged between the two brackets; two ends of the sliding plate are in sliding connection in corresponding grooves of the bracket, the sliding plate covers the water tank in an initial state, and a displacement part is fixedly arranged on the upper surface of the sliding plate; the side surface of one of the brackets is fixedly connected with a first electric push rod; a waterproof shell is arranged outside the first electric push rod, and an output shaft of the first electric push rod is fixedly connected with a displacement part; a second groove is formed in the inner part of the surface, opposite to the first sliding block, of the first sliding block, a second electric push rod is fixedly installed in the second groove, and an output shaft of the second electric push rod is fixedly connected with the bottom of the first sliding block; the first electric push rod is used for pushing the sliding plate to control the opening and closing of the joint of the water tank and the displacement tank; the displacement sensor is used for sensing the distance from the first sliding block to the bottom of the displacement groove; the controller is used for controlling the photovoltaic cell assembly to automatically operate;

when the water-saving device works, the bracket is placed in water, and the water level is always higher than the position of the first electric push rod; according to the influence of water level, the controller controls the first electric push rod to push the sliding plate to move, when the joint of one bracket water tank and the displacement tank is opened under the action of the movement of the sliding plate, the joint of the other bracket water tank and the displacement tank is closed under the action of the sliding plate, the water level in the bracket at the joint is opened to rise, the first sliding block in the bracket rises under the action of buoyancy of water, the first sliding block in the other bracket is fixed, the two first sliding blocks are not positioned on the same horizontal line, and the photovoltaic cell panel is inclined; the displacement sensor measures the linear displacement of the pull rope, so that the distance from the first sliding block to the bottom of the displacement groove is measured, and meanwhile, the sliding plate does not block the movement of the pull rope when moving; when one first sliding block moves for a certain distance, the displacement sensor transmits information to the controller, the controller drives the sliding plate to close the joint of the support, so that the joint of the other support is opened, water enters the displacement groove from the water tank, and the first sliding block of the support rises under the action of buoyancy, so that the photovoltaic cell panel rises alternately; the second electric push rod is arranged for pushing the first sliding block to ascend when the buoyancy of water is insufficient to support the first sliding block; when the two sliding blocks rise to the same height, the controller controls the first electric push rod to push the sliding plate to close the joint of the two brackets; when the water level is completely reduced and the original water level is recovered, the controller controls the first electric push rod to push the sliding plate to respectively open the connecting parts of the two supports, so that the photovoltaic cell panel is alternately reduced and is not influenced by slight water level fluctuation; the photovoltaic cell panel is inclined in the alternate rising process, and impurities on the surface fall off; according to the photovoltaic cell module, the sliding plate is arranged between the two supports and is matched with the controller to drive the first electric push rod to push the sliding plate to move, so that the supports can alternately ascend, the photovoltaic cell panel can alternately ascend, moisture and impurities on the surface of the photovoltaic cell panel can be more effectively removed, the hot spot effect is caused to damage the safety of the module, and the stable work of the photovoltaic cell module is ensured.

Preferably, the opposite side walls of the photovoltaic cell panel are provided with a third groove, and the third groove is connected with a second sliding block in a sliding manner; a sliding strip is arranged on the surface of the photovoltaic cell panel, which is far away from the first sliding block; the end part of the sliding strip is fixedly connected with two corresponding second sliding blocks; when the photovoltaic cell panel lifting mechanism works, the second sliding block moves along the third groove under the influence of gravity in the process that the photovoltaic cell panel alternately rises; the sliding strip synchronously moves along with the second sliding block to wipe off dust and water drops on the surface of the photovoltaic cell panel, so that the effect of cleaning the surface of the photovoltaic cell panel is achieved; according to the photovoltaic cell module, the second sliding block and the sliding strip are arranged on the surface of the photovoltaic cell panel and are matched with the photovoltaic cell panel in an alternately ascending and descending manner, so that the effect that the sliding strip scrapes on the surface of the photovoltaic cell panel is achieved, the surface of the photovoltaic cell panel is cleaned, the photovoltaic cell panel is prevented from generating a hot spot effect, and the stable working efficiency of the photovoltaic cell module is improved.

Preferably, the cross section of the sliding strip is concave, the inside of the sliding strip is hollow, and a spring is arranged on the surface of a concave part of the sliding strip; one end of the spring is fixedly connected to the bottom surface of the concave part of the sliding strip, the other end of the spring is fixedly connected with the cleaning block, and two inner walls of the concave part of the sliding strip are in sliding connection with the cleaning block; when the cleaning device works, the sliding strip is scraped on the surface of the photovoltaic cell panel, the cleaning block slides up and down on the inner wall of the concave part of the sliding strip, and the cleaning block is close to the surface of the photovoltaic cell panel under the action of the spring force, so that the surface of the photovoltaic cell panel is not extruded and damaged due to overlarge force while the surface of the photovoltaic cell panel is close to the surface of the photovoltaic cell panel, and the cleaning effect is not reduced due to the reduction of the force; meanwhile, when the spring is extruded, force is transferred to the cleaning block, so that the cleaning block can be reset; according to the invention, the spring is arranged on the concave surface of the slide bar and is matched with the cleaning block, so that the cleaning block can be ensured to be tightly close to the surface of the photovoltaic cell panel without gaps, and the surface damage of the photovoltaic cell panel caused by the overlarge pressure of the cleaning block on the surface of the photovoltaic cell panel is avoided, thereby ensuring the cleaning efficiency of the slide bar and improving the stable working efficiency of the photovoltaic cell module.

Preferably, the contact surface of the cleaning block and the photovoltaic cell panel is arc-shaped; the outer side surface of the sliding strip is provided with a cleaning hole which is communicated with the inside of the sliding strip; the sliding strip is made of flexible materials, synthetic rubber is preferably selected, the performance of the synthetic rubber meets the requirements of the cleaning block on the performance of the cleaning block, and the materials can ensure that the cleaning block can be used for a long time; when the device works, impurities are fixed on the surface of the photovoltaic cell panel to form an uneven surface, when the cleaning block is in contact with the surface, the arc shape can be better extruded by the impurities, so that the spring is compressed, the spring transmits force to the surface of the slide bar to extrude the slide bar, the slide bar is deformed, the internal volume of the slide bar is reduced, the total amount of air is unchanged, the internal gas pressure of the slide bar is increased, finally, gas is sprayed out through cleaning holes in the surface of the slide bar to impact the surface of the photovoltaic cell panel, and dirt of the photovoltaic cell panel is impacted to fall off; according to the invention, the contact surface of the cleaning block and the photovoltaic cell panel is set to be arc-shaped, and then the cleaning block is matched with the cleaning hole arranged on the surface of the slide bar, so that firm dirt on the surface of the photovoltaic cell panel is cleaned, the cleaning efficiency is further improved, and the working efficiency of the photovoltaic cell panel is further improved.

Preferably, the back of the photovoltaic cell panel is provided with a heat dissipation plate; the heat dissipation plate is fixedly connected with the back of the photovoltaic cell panel, the cross section of the heat dissipation plate is arc-shaped, and the end part of the heat dissipation plate is fixedly connected with the collecting plate; when the photovoltaic solar panel alternately ascends, water inside the heat dissipation plate rolls, heat is transferred to the heat dissipation plate through the back of the photovoltaic cell panel and then transferred to the water from the heat dissipation plate; the phenomenon that the temperature of the photovoltaic cell panel is too high to influence the transmission current of an internal element, so that hot spot effect and PID effect are easily caused and the element is damaged is prevented; according to the invention, the heat dissipation plate is arranged on the back surface of the photovoltaic cell panel and is matched with the collection plates fixedly connected with the two sides of the heat dissipation plate, so that water drops on the surface of the photovoltaic cell panel are collected, the heat dissipation plate performs water cooling heat dissipation, the heat dissipation effect is further enhanced, and the photovoltaic cell panel is prevented from generating PID effect, thereby causing component failure.

The invention has the following beneficial effects:

1. according to the photovoltaic cell assembly, the drain hole is formed in the support and communicated with an external water source, the cavity is formed in the first sliding block, and the first sliding block is matched with the first sliding block in the displacement groove in a vertical displacement mode under the influence of the water level, so that the first sliding block drives the photovoltaic cell panel to move vertically, and the distance between the photovoltaic cell panel and the water surface is guaranteed; meanwhile, the photovoltaic cell panel is hinged to the first sliding block, when the water surface fluctuates, the photovoltaic cell panel can slightly shake, dust and water drops on the surface of the photovoltaic cell panel can shake and slide along with the water drops, the surface of the photovoltaic cell panel is clean, the photovoltaic cell panel can normally operate, and the working efficiency and the service life of a photovoltaic cell module are improved.

2. According to the photovoltaic cell assembly, the sliding plate is arranged between the two supports and is matched with the controller to drive the first electric push rod to push the sliding plate to move, so that the supports can alternately ascend, the photovoltaic cell panel can alternately ascend, moisture and impurities on the surface of the photovoltaic cell panel can be effectively removed, the safety of the assembly is damaged by a hot spot effect, and the stable working efficiency of the photovoltaic cell assembly is ensured.

3. According to the photovoltaic cell assembly, the second sliding block and the sliding strip are arranged on the surface of the photovoltaic cell panel and are matched with the photovoltaic cell panel in an alternately ascending mode, so that the effect that the sliding strip scrapes the surface of the photovoltaic cell panel is achieved, the surface of the photovoltaic cell panel is cleaned, the photovoltaic cell panel is prevented from generating hot spot effect, and the stable working efficiency of the photovoltaic cell assembly is further improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a block diagram of the present invention;

FIG. 3 is a cross-sectional view of a stent;

FIG. 4 is a side cross-sectional view of a slide and cleaning block;

FIG. 5 is a sectional view taken along line B-B of FIG. 4;

FIG. 6 is a cross-sectional view of the present invention;

in the figure: 1. a photovoltaic cell panel; 2. a support; 21. a first sliding block; 211. a cavity; 212. an inflation hole; 22. a displacement sensor; 221. pulling a rope; 23. a first groove; 24. a water tank; 241. a water flowing hole; 25. a displacement slot; 26. a slide plate; 261. a displacement part; 262. an electric push rod; 11. a groove III; 12. a second sliding block; 13. a slide bar; 131. a recess; 132. a spring; 133. a cleaning block; 134. cleaning the hole; 14. a heat dissipation plate; 15. a collection plate; 16. a chute; 17. a second groove; 171. no. two electric putter.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, a photovoltaic cell module according to the present invention includes a photovoltaic cell panel 1 and a support 2; the number of the brackets 2 is two; the method is characterized in that: the photovoltaic cell assembly further comprises a first sliding block 21; the bottom of the support 2 is fixedly connected to the water bottom, the bottom of the support 2 is provided with a water tank 24, the outer wall of the bottom of the support 2 is provided with a water flowing hole 241, and the water flowing hole 241 is communicated with the water tank 24; a displacement groove 25 is formed in the upper end face of the support 2, the displacement groove 25 is communicated with the water groove 24, and the first sliding block 21 is connected in the displacement groove 25 in a sliding mode; the upper end surface of the first sliding block 21 is hinged with the back of the photovoltaic cell panel 1, the back of the photovoltaic cell panel 1 is provided with a sliding groove 16, and the hinged part is in sliding connection with the sliding groove 16; a cavity 211 is formed in the first sliding block 21, and the cross section of the cavity 211 is rectangular; the reverse side of the opposite surfaces of the two sliding blocks is provided with an air inflation hole 212; the first sliding block 21 can push the photovoltaic cell panel 1 to move up and down under the buoyancy action of water;

when the photovoltaic module works, the photovoltaic cell on water is easily influenced by the water level, the photovoltaic cell panel 1 is easily covered by the rising of the water level to cause PID effect and hot spot effect, so that the module is ineffective, the glue is easily aged and ineffective by the water, and the water directly enters the cell panel to cause damage; the floating photovoltaic cell needs floating equipment to support the photovoltaic cell panel 1, and the floating body stand has high requirements on corrosion resistance, low density, frost heaving resistance, wind wave resistance, service life, bearing capacity and the like;

therefore, the photovoltaic cell is irradiated by sunlight, and the sunlight irradiates on a semiconductor p-n junction in the cell panel to form a new hole-electron pair; under the action of a p-n junction electric field, holes flow from the n region to the p region, electrons flow from the p region to the n region, and current is formed after a circuit is switched on; in order to ensure smooth power generation of the photovoltaic cell, inert gas is injected into the cavity 211 of the first sliding block 21 in a pressurizing mode, and the sectional area of the first sliding block 21 is 40 cm-40 cm; because the water level is higher than the water flowing hole 241, according to the principle of the communicating vessel, the water outside the bracket 2 flows into the water tank 24 through the water flowing hole 241, the water level inside the water tank 24 rises to enter the displacement tank 25, and the volume of the water inside the displacement tank 25 is increased; the pressure intensity of the water on the bottom surface of the first sliding block 21 is increased, and the first sliding block 21 slowly rises under the action of buoyancy, so that the hinged photovoltaic cell panel 1 is driven to rise, and the photovoltaic cell panel 1 is ensured not to contact the water surface;

according to the invention, the drain hole 241 is arranged in the support 2 and communicated with an external water source, the cavity 211 is arranged in the first sliding block 21 and is matched with the first sliding block 21 in the displacement groove 25 in a vertical displacement manner under the influence of the water level, so that the first sliding block 21 drives the photovoltaic cell panel 1 to move vertically, and the distance between the photovoltaic cell panel 1 and the water surface is ensured; meanwhile, the photovoltaic cell panel 1 is hinged with the first sliding block 21, when the water surface fluctuates, the photovoltaic cell panel 1 can slightly shake, dust and water drops on the surface of the photovoltaic cell panel 1 can shake and slide along with the photovoltaic cell panel, the surface of the photovoltaic cell panel 1 is ensured to be clean, the photovoltaic cell panel 1 can normally operate, the working efficiency of a photovoltaic cell assembly is improved, and the service life of the photovoltaic cell assembly is prolonged;

preferably, the photovoltaic cell assembly further comprises a displacement sensor 22 and a controller; the displacement sensor 22 is embedded in the lower end face of the first sliding block 21, and a pull rope 221 of the displacement sensor 22 is fixedly connected to the bottom of the displacement groove 25; the opposite side surfaces of the two brackets 2 are respectively provided with a first groove 23, and a sliding plate 26 is arranged between the two brackets 2; two ends of the sliding plate 26 are connected in a sliding way in corresponding grooves of the bracket 2, the sliding plate 26 covers the water tank 24 in an initial state, and a displacement part 261 is fixedly arranged on the upper surface of the sliding plate 26; a first electric push rod 262 is fixedly connected to the side surface of one of the brackets 2; a waterproof shell is arranged outside the first electric push rod 262, and an output shaft of the first electric push rod 262 is fixedly connected with a displacement part 261; a second groove 17 is formed in the inner part of the surface, opposite to the first sliding block 21, of the second groove 17, a second electric push rod 171 is fixedly installed in the second groove 17, and an output shaft of the second electric push rod 171 is fixedly connected with the bottom of the first sliding block 21; the first electric push rod 262 is used for pushing the sliding plate 26 to control the opening and closing of the joint of the water tank 24 and the displacement tank 25; the displacement sensor 22 is used for sensing the distance from the first sliding block 21 to the bottom of the displacement groove 25; the controller is used for controlling the photovoltaic cell assembly to automatically operate;

when the water-saving water dispenser works, the bracket 2 is placed in water, and the water level is always higher than the position of the first electric push rod 262; according to the influence of water level, the controller controls the first electric push rod 262 to push the sliding plate 26 to move, when the joint of the water tank 24 of one support 2 and the displacement tank 25 is opened under the moving action of the sliding plate 26, the joint of the water tank 24 of the other support 2 and the displacement tank 25 is closed under the action of the sliding plate 26, the water level in the support 2 at the opened joint is raised, the first slide block 21 in the support 2 is raised under the buoyancy action of water, the first slide block 21 in the other support 2 is not moved, the two first slide blocks 21 are not positioned on the same horizontal line, and the photovoltaic cell panel 1 is inclined; the displacement sensor 22 measures the linear displacement of the pull rope 221, so that the distance from the first slide block 21 to the bottom of the displacement groove 25 is measured, and the slide plate 26 does not obstruct the movement of the pull rope 221 when moving; when two first sliding blocks 21 do not ascend simultaneously, after one first sliding block 21 displaces for a certain distance, the displacement sensor 22 transmits information to the controller, the controller drives the sliding plate 26 to close the joint of the support 2, so that the joint of the other support 2 is opened, water enters the displacement groove 25 from the water groove 24, and the first sliding block 21 of the support 2 ascends under the action of buoyancy, so that the photovoltaic cell panel 1 ascends alternately; the second electric push rod 171 is arranged for pushing the first slide block 21 to ascend when the buoyancy of water is insufficient to support the first slide block 21; when the two first sliding blocks 21 rise to the same height, the controller controls the first electric push rod 262 to push the sliding plate 26 to close the joint of the two brackets 2; when the water level is completely reduced and the original water level is recovered, the controller controls the first electric push rod 262 to push the sliding plate 26 to open the joints of the two brackets 2 respectively, so that the photovoltaic cell panel 1 is alternately reduced, and the hinged joints are in sliding connection with the sliding grooves 16, and the alternate ascending of the photovoltaic cell panel 1 is not influenced; the photovoltaic cell panel 1 is inclined in the alternate rising process, and impurities on the surface fall off; according to the invention, the sliding plate 26 is arranged between the two supports 2, and the controller drives the first electric push rod 262 to push the sliding plate 26 to move and cooperate, so that the supports 2 can alternately ascend, and further the photovoltaic cell panel 1 can alternately ascend, so that the photovoltaic cell panel 1 can more effectively drop moisture and impurities on the surface, the hot spot effect is caused to damage the safety of the assembly, and the stable work of the photovoltaic cell assembly is ensured.

As an embodiment of the invention, the opposite side walls of the photovoltaic cell panel 1 are provided with a third groove 11, and the third groove 11 is connected with a second sliding block 12 in a sliding manner; a sliding strip 13 is arranged on the surface of the photovoltaic cell panel 1, which is far away from the first sliding block 21; the end part of the slide bar 13 is fixedly connected with two corresponding second sliding blocks 12; during working, in the process that the photovoltaic cell panel 1 alternately rises, the second sliding block 12 moves along the third groove 11 under the influence of gravity; the sliding strip 13 synchronously moves along with the second sliding block 12 to wipe off dust and water drops on the surface of the photovoltaic cell panel 1, so that the effect of cleaning the surface of the photovoltaic cell panel 1 is achieved; according to the photovoltaic cell module, the second sliding block 12 and the sliding strip 13 are arranged on the surface of the photovoltaic cell panel 1 and are matched with the photovoltaic cell panel 1 in an alternately ascending and descending manner, so that the effect that the sliding strip 13 scrapes the surface of the photovoltaic cell panel 1 is achieved, the surface of the photovoltaic cell panel 1 is further cleaned, the photovoltaic cell panel 1 is prevented from generating a hot spot effect, and the stable working efficiency of the photovoltaic cell module is further improved;

as an embodiment of the present invention, the cross-sectional shape of the slide bar 13 is concave, the interior of the slide bar 13 is hollow, and the surface of the recess 131 of the slide bar 13 is provided with a spring 132; one end of the spring 132 is fixedly connected to the bottom surface of the recess 131 of the slide bar 13, the other end of the spring is fixedly connected to the cleaning block 133, and two inner walls of the recess 131 of the slide bar 13 are slidably connected with the cleaning block 133; when the cleaning device works, the sliding strip 13 is scraped on the surface of the photovoltaic cell panel 1, the cleaning block 133 slides up and down on the inner wall of the concave part 131 of the sliding strip 13, and the cleaning block 133 is close to the surface of the photovoltaic cell panel 1 under the action of the spring 132 force, so that when the cleaning block is close to the surface of the photovoltaic cell panel 1, on one hand, the surface of the photovoltaic cell panel 1 is not extruded and damaged due to overlarge force, and on the other hand, the cleaning effect is not reduced due to the reduction of; meanwhile, when the spring 132 is extruded, force is transmitted to the cleaning block 133, so that the cleaning block 133 can be reset; according to the invention, the spring 132 is arranged on the surface of the concave 131 of the sliding strip 13 and is matched with the cleaning block 133, so that the cleaning block 133 can be ensured to be tightly close to the surface of the photovoltaic cell panel 1 without gaps, and the surface of the photovoltaic cell panel 1 is prevented from being damaged due to the fact that the cleaning block 133 presses the surface of the photovoltaic cell panel 1 too much, so that the cleaning efficiency of the sliding strip 13 is ensured, and the stable working efficiency of the photovoltaic cell assembly is improved;

as an embodiment of the present invention, the contact surface of the cleaning block 133 and the photovoltaic cell panel 1 is arc-shaped; the outer side surface of the slide bar 13 is provided with a cleaning hole 134, and the cleaning hole 134 is communicated with the inside of the slide bar 13; the sliding strip 13 is made of flexible materials, synthetic rubber is preferred, the performance of the synthetic rubber meets the requirements of the cleaning block 133 on the performance of the cleaning block, and the materials can ensure that the cleaning block can be used for a long time; during operation, impurities are fixed on the surface of the photovoltaic cell panel 1 to form an uneven surface, when the cleaning block 133 is in contact with the surface, the arc shape can be better extruded by the impurities, so that the spring 132 is compressed, the spring 132 transmits force to the surface of the slide bar 13 to extrude the slide bar 13, the slide bar 13 is deformed, the internal volume of the slide bar 13 is reduced, the total air amount is unchanged, the internal gas pressure of the slide bar 13 is increased, finally, gas is sprayed out through the cleaning holes 134 on the surface of the slide bar 13 to impact the surface of the photovoltaic cell panel 1, and dirt of the photovoltaic cell panel 1 is impacted to fall off; according to the invention, the contact surface of the cleaning block 133 and the photovoltaic cell panel 1 is set to be arc-shaped, and then is matched with the cleaning hole 134 arranged on the surface of the slide bar 13, so that dirt on the surface of the photovoltaic cell panel 1 is cleaned firmly, the cleaning efficiency is further improved, and the working efficiency of the photovoltaic cell panel 1 is further improved;

as an embodiment of the invention, the back of the photovoltaic cell panel 1 is provided with a heat dissipation plate 14; the heat dissipation plate 14 is fixedly connected with the back of the photovoltaic cell panel 1, the cross section of the heat dissipation plate 14 is arc-shaped, and the end part of the heat dissipation plate 14 is fixedly connected with the collecting plate 15; when the photovoltaic solar panel is in work, the sliding strips 13 move on the surface of the photovoltaic cell panel 1, water drops on the surface of the photovoltaic cell panel 1 are scraped to the two sides of the photovoltaic cell panel 1 by the sliding strips 13, the water drops fall into the collecting plate 15 under the action of the thrust of the sliding strips 13 and the self gravity and then flow into the heat dissipation plate 14, when the photovoltaic cell panel 1 rises alternately, water in the heat dissipation plate 14 rolls, and heat is transferred to the heat dissipation plate 14 through the back of the photovoltaic cell panel 1 and then is transferred into the water from the heat dissipation plate 14; the phenomenon that the temperature of the photovoltaic cell panel 1 is too high, so that the transmission current of an internal element is influenced, and the hot spot effect and the PID effect are easily caused to cause element damage is prevented; according to the invention, the heat dissipation plate 14 is arranged on the back surface of the photovoltaic cell panel 1 and is matched with the collection plate 15 fixedly connected with the two sides of the heat dissipation plate 14, so that water drops on the surface of the photovoltaic cell panel 1 are collected, the heat dissipation plate 14 performs water-cooling heat dissipation, the heat dissipation effect is further enhanced, and the photovoltaic cell panel 1 is prevented from generating a PID effect, so that the assembly is not effective;

the specific working process is as follows:

therefore, the photovoltaic cell is irradiated by sunlight, and the sunlight irradiates on a semiconductor p-n junction in the cell panel to form a new hole-electron pair; under the action of a p-n junction electric field, holes flow from the n region to the p region, electrons flow from the p region to the n region, and current is formed after a circuit is switched on; in order to ensure smooth power generation of the photovoltaic cell, inert gas is injected into the cavity 211 of the first sliding block 21 in a pressurizing mode, and the sectional area of the first sliding block 21 is 40 cm-40 cm; according to the invention, the cavity 211 in the first sliding block 21 is pressurized and injected with inert gas through the inflation hole 212, and then the inflation hole 212 is blocked; the density of the inert gas is smaller than that of air, air buoyancy can be generated, and the buoyancy larger than 0.1N can be generated due to the large volume of the cavity 211; the first sliding block 21 is made of PA66 material, the density of the first sliding block is low, the photovoltaic cell panel 1 is a semi-flexible photovoltaic cell panel 1, and the weight of the first sliding block is 1 kg; when the difference between the water level inside and outside the bracket 2 reaches 1m, the water buoyancy can support the sliding block to rise; when the water level rises, the difference between the water level inside and outside the bracket 2 reaches 1m, and because the water level is higher than the water flowing hole 241, the water outside the bracket 2 flows into the water tank 24 through the water flowing hole 241 according to the principle of a communicating vessel, the water level inside the water tank 24 rises to enter the displacement tank 25, and the volume of the water inside the displacement tank 25 is increased; the pressure intensity of the water on the bottom surface of the first sliding block 21 is increased, and the first sliding block 21 slowly rises under the action of buoyancy, so that the hinged photovoltaic cell panel 1 is driven to rise, and the photovoltaic cell panel 1 is ensured not to contact the water surface; when the water-saving water dispenser works, the bracket 2 is placed in water, and the water level is always higher than the position of the first electric push rod 262; according to the influence of water level, the controller controls the first electric push rod 262 to push the sliding plate 26 to move, when the joint of the water tank 24 of one support 2 and the displacement tank 25 is opened under the moving action of the sliding plate 26, the joint of the water tank 24 of the other support 2 and the displacement tank 25 is closed under the action of the sliding plate 26, the water level in the support 2 at the opened joint is raised, the first slide block 21 in the support 2 is raised under the buoyancy action of water, the first slide block 21 in the other support 2 is not moved, the two first slide blocks 21 are not positioned on the same horizontal line, and the photovoltaic cell panel 1 is inclined; the displacement sensor 22 measures the linear displacement of the pull rope 221, so that the distance from the first slide block 21 to the bottom of the displacement groove 25 is measured, and the slide plate 26 does not obstruct the movement of the pull rope 221 when moving; when two first sliding blocks 21 do not ascend simultaneously, after one first sliding block 21 displaces for a certain distance, the displacement sensor 22 transmits information to the controller, the controller drives the sliding plate 26 to close the joint of the support 2, so that the joint of the other support 2 is opened, water enters the displacement groove 25 from the water groove 24, and the first sliding block 21 of the support 2 ascends under the action of buoyancy, so that the photovoltaic cell panel 1 ascends alternately; when the two sliding blocks rise to the same height, the controller controls the first electric push rod 262 to push the sliding plate 26 to close the joint of the two brackets 2; when the water level is completely reduced and the original water level is recovered, the controller controls the first electric push rod 262 to push the sliding plate 26 to respectively open the connecting parts of the two brackets 2, so that the photovoltaic cell panel 1 is alternately reduced and is not influenced by slight water level fluctuation; the photovoltaic cell panel 1 is inclined in the alternate rising process, and impurities on the surface fall off; during working, in the process that the photovoltaic cell panel 1 alternately rises, the second sliding block 12 moves along the third groove 11 under the influence of gravity; the sliding strip 13 synchronously moves along with the second sliding block 12 to wipe off dust and water drops on the surface of the photovoltaic cell panel 1, so that the effect of cleaning the surface of the photovoltaic cell panel 1 is achieved; when the cleaning device works, the sliding strip 13 is scraped on the surface of the photovoltaic cell panel 1, the cleaning block 133 slides up and down on the inner wall of the concave part 131 of the sliding strip 13, and the cleaning block 133 is close to the surface of the photovoltaic cell panel 1 under the action of the spring 132 force, so that when the cleaning block is close to the surface of the photovoltaic cell panel 1, on one hand, the surface of the photovoltaic cell panel 1 is not extruded and damaged due to overlarge force, and on the other hand, the cleaning effect is not reduced due to the reduction of the force; meanwhile, when the spring 132 is extruded, force is transmitted to the cleaning block 133, so that the cleaning block 133 can be reset; during operation, impurities are fixed on the surface of the photovoltaic cell panel 1 to form an uneven surface, when the cleaning block 133 is in contact with the surface, the arc shape can be better extruded by the impurities, so that the spring 132 is compressed, the spring 132 transmits force to the surface of the slide bar 13 to extrude the slide bar 13, the slide bar 13 is deformed, the internal volume of the slide bar 13 is reduced, the total air amount is unchanged, the internal gas pressure of the slide bar 13 is increased, finally, gas is sprayed out through the cleaning holes 134 on the surface of the slide bar 13 to impact the surface of the photovoltaic cell panel 1, and dirt of the photovoltaic cell panel 1 is impacted to fall off; when the photovoltaic solar panel is in work, the sliding strips 13 move on the surface of the photovoltaic cell panel 1, water drops on the surface of the photovoltaic cell panel 1 are scraped to the two sides of the photovoltaic cell panel 1 by the sliding strips 13, the water drops fall into the collecting plate 15 under the action of the thrust of the sliding strips 13 and the self gravity and then flow into the heat dissipation plate 14, when the photovoltaic cell panel 1 rises alternately, water in the heat dissipation plate 14 rolls, and heat is transferred to the heat dissipation plate 14 through the back of the photovoltaic cell panel 1 and then is transferred into the water from the heat dissipation plate 14; the phenomenon that the temperature of the photovoltaic cell panel 1 is too high, so that the transmission current of an internal element is influenced, and the hot spot effect and the PID effect are easily caused to cause element damage is prevented;

the foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A photovoltaic cell assembly comprising a photovoltaic cell panel (1) and a support (2); the number of the brackets (2) is two; the method is characterized in that: the photovoltaic cell assembly also comprises a first sliding block (21); the bottom of the support (2) is fixedly connected to the water bottom, a water tank (24) is arranged at the bottom of the support (2), a water flowing hole (241) is arranged on the outer wall of the bottom of the support (2), and the water flowing hole (241) is communicated with the water tank (24); a displacement groove (25) is formed in the upper end face of the support (2), the displacement groove (25) is communicated with the water tank (24), and a first sliding block (21) is connected in the displacement groove (25) in a sliding mode; the upper end surface of the first sliding block (21) is hinged with the back of the photovoltaic cell panel (1), the back of the photovoltaic cell panel (1) is provided with a sliding groove (16), and the hinged part is in sliding connection in the sliding groove (16); a cavity (211) is formed in the first sliding block (21), and the cross section of the cavity (211) is rectangular; the reverse sides of the opposite surfaces of the two sliding blocks are provided with air inflation holes (212); the first sliding block (21) can push the photovoltaic cell panel (1) to move up and down under the buoyancy action of water.

2. The photovoltaic cell assembly of claim, wherein: the photovoltaic cell assembly further comprises a displacement sensor (22) and a controller; the displacement sensor (22) is embedded in the lower end face of the first sliding block (21), and a pull rope (221) of the displacement sensor (22) is fixedly connected to the bottom of the displacement groove (25); a first groove (23) is formed in the opposite side faces of the two brackets (2), and a sliding plate (26) is arranged between the two brackets (2); two ends of the sliding plate (26) are connected in a sliding way in corresponding grooves of the bracket (2), the sliding plate (26) covers the water tank (24) in an initial state, and a displacement part (261) is fixedly arranged on the upper surface of the sliding plate (26); the side surface of one bracket (2) is fixedly connected with a first electric push rod (262); a waterproof shell is arranged outside the first electric push rod (262), and an output shaft of the first electric push rod (262) is fixedly connected with a displacement part (261); a second groove (17) is formed in the inner part of the surface, opposite to the first sliding block (21), of the first groove (17), a second electric push rod (171) is fixedly installed in the second groove (17), and an output shaft of the second electric push rod (171) is fixedly connected with the bottom of the first sliding block (21); the first electric push rod (262) is used for pushing the sliding plate (26) to control the opening and closing of the joint of the water tank (24) and the displacement tank (25); the displacement sensor (22) is used for sensing the distance from the first sliding block (21) to the bottom of the displacement groove (25); the controller is used for controlling the photovoltaic cell assembly to automatically operate.

3. The photovoltaic cell assembly of claim, wherein: the photovoltaic cell panel (1) is characterized in that the opposite side walls are provided with a third groove (11), and the third groove (11) is connected with a second sliding block (12) in a sliding manner; a sliding strip (13) is arranged on the surface, far away from the first sliding block (21), of the photovoltaic cell panel (1); the end part of the slide bar (13) is fixedly connected with two corresponding second sliding blocks (12).

4. The photovoltaic cell assembly of claim, wherein: the cross section of the sliding strip (13) is concave, the interior of the sliding strip is hollow, and a spring (132) is arranged on the surface of a concave part (131) of the sliding strip (13); one end of the spring (132) is fixedly connected to the bottom surface of the recess (131) of the sliding strip (13), the other end of the spring is fixedly connected with the cleaning block (133), and two inner walls of the recess (131) of the sliding strip (13) are slidably connected with the cleaning block (133).

5. The photovoltaic cell assembly of claim, wherein: the contact surface of the cleaning block (133) and the photovoltaic cell panel (1) is arc-shaped; the outer side surface of the slide bar (13) is provided with a cleaning hole (134); the cleaning hole (134) is communicated with the inside of the slide bar (13); the sliding strip (13) is made of flexible materials.

6. The photovoltaic cell assembly of claim, wherein: the back of the photovoltaic cell panel (1) is provided with a heat dissipation plate (14); the heat dissipation plate (14) is fixedly connected with the back of the photovoltaic cell panel (1), the cross section of the heat dissipation plate (14) is arc-shaped, and the end part of the heat dissipation plate (14) is fixedly connected with the collecting plate (15).