Shielding device and photovoltaic power station

Abstract

The utility model discloses a shielding device and a photovoltaic power station, and belongs to the technical field of photovoltaic power generation. The shielding device is applied to the electrical equipment and comprises a supporting frame which is suitable for being installed on the outer side of the electrical equipment; the rotating shaft is rotatably mounted at the upper end of the supporting frame; the shielding plate is installed on the rotating shaft, and the shielding plate is suitable for being located above the electrical equipment; the output end of the driving device is connected with the rotating shaft, and the driving device is used for driving the rotating shaft to rotate. According to the shielding device provided by the invention, by arranging the rotating shaft, the shielding plate and the driving device, the shielding angle of the shielding plate can be changed along with the change of the sun position, so that sunlight is prevented from directly irradiating the electrical equipment, the loss of the electrical equipment is reduced, and the power generation efficiency and the power generation amount of the electrical equipment are ensured; and meanwhile, the damage of rainwater, hail and other substances to the electrical equipment shell can be avoided, and the service life of the electrical equipment is prolonged.

Description

Technical Field

[0001] The present application belongs to the field of photovoltaic power generation technology, and in particular relates to a shielding device and a photovoltaic power station. Background Art

[0002] At present, the electrical equipment in some photovoltaic power stations needs to be installed in outdoor scenes. When it is a hot and sunny day outdoors, the electrical equipment is directly exposed to the sunlight. The casing of the electrical equipment absorbs solar radiation and heats up, causing the temperature around the electrical equipment to rise synchronously. At this time, in addition to normal operation, the electrical equipment also has additional losses, which can easily lead to reduced efficiency of the electrical equipment and the risk of premature derating, thereby reducing the power generation of the electrical equipment. At the same time, when it is heavy rain or hail outdoors, rain and hail fall directly on the casing of the electrical equipment, which can easily damage the casing of the electrical equipment and reduce the service life of the electrical equipment. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a shielding device and a photovoltaic power station, which can change the shielding angle of the shielding plate with the change of the sun's position, thereby preventing the sun's rays from directly irradiating the electrical equipment, reducing the loss of the electrical equipment, and ensuring the power generation efficiency and power generation of the electrical equipment.

[0004] In a first aspect, the present application provides a shielding device, applied to an electrical device, comprising:

[0005] A support frame, the support frame is suitable for being installed on the outside of the electrical equipment;

[0006] A rotating shaft, the rotating shaft is rotatably mounted on the upper end of the supporting frame;

[0007] A shielding plate, the shielding plate is mounted on the rotating shaft, and the shielding plate is suitable for being located above the electrical equipment;

[0008] A driving device, wherein an output end of the driving device is connected to the rotating shaft and is used for driving the rotating shaft to rotate.

[0009] According to the shielding device provided in the embodiment of the present application, by arranging a rotating shaft, a shielding plate and a driving device, the shielding angle of the shielding plate can be changed with the change of the position of the sun, thereby preventing sunlight from directly irradiating on electrical equipment, reducing the loss of electrical equipment, ensuring the power generation efficiency and power generation of the electrical equipment, and at the same time preventing substances such as rain and hail from damaging the casing of the electrical equipment, thereby extending the service life of the electrical equipment.

[0010] According to one embodiment of the present application, the support frame includes:

[0011] A first support and a second support, wherein the first support and the second support are suitable for being located at two sides of the electrical device respectively, and at least one of the first support and the second support is provided with a mounting bracket, and the driving device is mounted on the mounting bracket.

[0012] By setting the above-mentioned mounting bracket, the stability of the driving device during operation can be improved, and the driving device can be prevented from falling and being damaged and causing harm to nearby personnel.

[0013] According to one embodiment of the present application, it also includes:

[0014] A plurality of light sensors, each of which is mounted at different positions on the upper surface of the shielding plate and is used to collect light intensity at various positions on the upper surface of the shielding plate;

[0015] A first controller is electrically connected to the multiple light sensors and a control end of the driving device, and is used to control a working state of the driving device based on a maximum value of light intensity collected by the multiple light sensors.

[0016] According to one embodiment of the present application, it also includes:

[0017] A second controller is electrically connected to a control end of the driving device and is used to control a working state of the driving device based on daily schedule information.

[0018] By setting the above-mentioned light sensor and controller, the shielding angle of the shielding plate can be accurately controlled in real time according to the position of the maximum light intensity on the shielding plate, further preventing sunlight from directly hitting the electrical equipment, and the control accuracy is high.

[0019] By configuring the controller to control the operating state of the drive device based on daily schedule information, the number of components can be reduced, thereby reducing production costs to a certain extent.

[0020] According to one embodiment of the present application, the support frame includes:

[0021] a first column, wherein the upper end of the first column is connected to the rotating shaft;

[0022] The second column is sleeved on the outside of the first column, and the first column and the second column are slidably connected in the axial direction.

[0023] Through the arrangement of the first column and the second column, the support frame can adjust its own height when applied to electrical equipment at different installation heights, thereby avoiding the situation where the support frame is too high and the electrical equipment is too low to effectively block the sun, and avoiding the situation where the support frame is too low and the electrical equipment is too high to make the support frame unable to be installed.

[0024] According to one embodiment of the present application, the support frame includes:

[0025] A first support and a second support, wherein the upper ends of the first support and the second support are rotatably connected to the rotating shaft, and the first support and the second support are suitable for being located at two sides of the electrical equipment respectively.

[0026] According to one embodiment of the present application, it also includes:

[0027] A supporting leg is located on the upper side of the rotating shaft, and two ends of the supporting leg are respectively connected to the shielding plate and the rotating shaft.

[0028] According to an embodiment of the present application, the upper end of the rotating shaft defines a mounting plane, and at least an edge portion of the shielding plate is mounted in close proximity to the mounting plane.

[0029] According to an embodiment of the present application, the electrical equipment is mounted on a column via a hanging bracket, and the lower end of the support frame is mounted on the ground or on the hanging bracket.

[0030] According to one embodiment of the present application, the shielding plate is a planar structure;

[0031] or,

[0032] The shielding plate has a curved surface segment, and the center of curvature of the curved surface segment is located below the shielding plate.

[0033] In a second aspect, the present application provides a photovoltaic power station, the photovoltaic power station comprising:

[0034] A shielding device as described in any one of the above;

[0035] Column;

[0036] The electrical equipment is installed on the column and is located below the shielding plate of the shielding device.

[0037] According to the photovoltaic power station provided in the embodiments of the present application, by adopting a shielding device of any of the above-mentioned embodiments, the shielding angle of the shielding plate can be changed with the change of the position of the sun, thereby preventing sunlight from directly irradiating on electrical equipment, reducing the loss of electrical equipment, ensuring the power generation efficiency and power generation of the electrical equipment, and at the same time preventing substances such as rain and hail from damaging the casing of the electrical equipment, thereby extending the service life of the electrical equipment.

[0038] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0040] Figure 1 It is one of the structural schematic diagrams of the shielding device provided in the embodiment of the present application;

[0041] Figure 2 This is the second structural schematic diagram of the shielding device provided in the embodiment of the present application;

[0042] Figure 3 This is the third structural schematic diagram of the shielding device provided in the embodiment of the present application;

[0043] Figure 4 This is the fourth structural schematic diagram of the shielding device provided in the embodiment of the present application;

[0044] Figure 5 This is the fifth structural schematic diagram of the shielding device provided in the embodiment of the present application.

[0045] Reference numerals:

[0046] Support frame 100, first column 110, second column 120, first support column 130, second support column 140, mounting bracket 150;

[0047] Shielding plate 200, arc surface segment 210;

[0048] Rotating shaft 300, supporting legs 310;

[0049] Driving device 400 , column 500 , mounting bracket 600 , and electrical equipment 700 . DETAILED DESCRIPTION

[0050] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0051] Reference below Figure 1-Figure 5 A shielding device and a photovoltaic power station according to embodiments of the present application are described.

[0052] The present application embodiment provides a shielding device, which is applied to an electrical device 700, such as Figure 1-Figure 5 As shown, the shielding device includes a support frame 100 , a rotating shaft 300 , a shielding plate 200 and a driving device 400 .

[0053] The support frame 100 is suitable for being installed on the outside of the electrical device 700. The support frame 100 can be installed in front of, behind or on both sides of the electrical device 700. Figure 1-Figure 5 As shown, the support frame 100 is installed on both sides of the rear of the electrical device 700.

[0054] The rotating shaft 300 is rotatably mounted on the upper end of the support frame 100. The rotating shaft 300 can be directly supported on the upper end of the support frame 100, or a mounting hole can be set on the support frame 100, and the rotating shaft 300 can be mounted in the mounting hole of the support frame 100, and the rotating shaft 300 can rotate in the mounting hole, for example, Figure 1-Figure 5 As shown, the rotating shaft 300 is directly installed on the upper end of the supporting frame 100, and the installation method is simple, which can improve the installation efficiency.

[0055] like Figure 1-Figure 5 As shown, the shielding plate 200 is installed on the rotating shaft 300, and the shielding plate 200 can be connected to the rotating shaft 300 by a connector, welding, a snap-fit ​​or other methods.

[0056] like Figure 1-Figure 5 As shown, the shielding plate 200 is suitable for being located above the electrical device 700. When the shielding plate 200 is in a horizontal state, the projection of the shielding plate 200 on the horizontal plane covers the projection of the electrical device 700 on the horizontal plane.

[0057] The output end of the driving device 400 is connected to the rotating shaft 300 for driving the rotating shaft 300 to rotate. The driving device 400 drives the rotating shaft 300 by means including but not limited to hydraulic drive, pneumatic drive or other methods, for example, Figure 1-Figure 5 As shown, the driving device 400 is a motor, the output shaft of the motor is connected to the rotating shaft 300, and the rotating shaft 300 is directly driven to rotate by the motor. It has a simple structure and high driving efficiency, and can reduce production costs to a certain extent.

[0058] The rotating shaft 300 can be arranged along the north-south direction, and the rotating shaft 300 and the shielding plate 200 can be rotated in the east-west direction, so that the shielding plate 200 can face the sun to block the sunlight.

[0059] In the actual implementation process, when the electrical device 700 is in sunny weather, the driving device 400 can drive the rotating shaft 300 to drive the shielding plate 200 to rotate to a position facing the sun according to the position of the sun. For example, when the sun is directly above the electrical device 700, the driving device 400 drives the rotating shaft 300 to drive the shielding plate 200 to rotate to a horizontal position; when the sun is behind the electrical device 700, the driving device 400 drives the rotating shaft 300 to drive the shielding plate 200 to rotate toward the rear of the electrical device 700. , until the sunlight shines vertically on the shielding plate 200; when the sun is in front of the electrical equipment 700, the driving device 400 drives the rotating shaft 300 to drive the shielding plate 200 to rotate toward the front of the electrical equipment 700, until the sunlight shines vertically on the shielding plate 200, that is, the sunlight and the normal of the shielding plate 200 are always in a parallel state; when the electrical equipment 700 is in heavy rain or hail weather, the driving device 400 can drive the rotating shaft 300 to drive the shielding plate 200 to rotate to a horizontal position to shield rain and hail.

[0060] It should be noted that the normal of the shielding plate 200 may also be set to have a certain angle with the sunlight.

[0061] By providing a rotating shaft 300, a shielding plate 200 and a driving device 400, the driving device 400 can be used to drive the rotating shaft 300 to drive the shielding plate 200 to rotate, so that the orientation of the shielding plate 200 changes with the position of the sun, so that the shielding plate 200 absorbs part of the energy of the sun's rays and reflects the sun's rays to other positions, thereby preventing the sun's rays from directly irradiating the electrical equipment 700. At the same time, the shielding plate 200 can be used to block rain, hail and other substances that can cause direct damage to the casing of the electrical equipment 700.

[0062] According to the shielding device provided in the embodiment of the present application, by setting the rotating shaft 300, the shielding plate 200 and the driving device 400, the shielding angle of the shielding plate 200 can be changed with the change of the position of the sun, so as to avoid the direct exposure of sunlight to the electrical equipment 700, reduce the loss of the electrical equipment 700, ensure the power generation efficiency and power generation of the electrical equipment 700, and at the same time avoid the damage to the casing of the electrical equipment 700 by substances such as rain and hail, thereby extending the service life of the electrical equipment 700.

[0063] In some embodiments, Figure 4 and Figure 5 As shown, the support frame 100 includes a first support column 130 and a second support column 140 , which are suitable for being located on both sides of the electrical device 700 , respectively. One of the first support column 130 and the second support column 140 is provided with a mounting bracket 150 , and the driving device 400 is supported on the mounting bracket 150 .

[0064] Among them, Figure 4and Figure 5 As shown, the first pillar 130 and the second pillar 140 are respectively located on both sides of the rear of the electrical equipment 700, and the first pillar 130 and the second pillar 140 are arranged in parallel. The upper ends of the first pillar 130 and the second pillar 140 are both connected to the rotating shaft 300. The upper ends of the first pillar 130 and the second pillar 140 can be connected to the two ends of the rotating shaft 300, or to the middle position or other positions of the rotating shaft 300. For example, as shown in the figure, the upper ends of the first pillar 130 and the second pillar 140 are connected to the two ends of the rotating shaft 300, which can improve the stability of supporting the rotating shaft 300.

[0065] One of the first support 130 and the second support 140 is provided with a mounting bracket 150, such as Figure 4 and Figure 5 As shown, a mounting bracket 150 is disposed on the first pillar 130 , and the mounting bracket 150 is disposed at the upper end of the first pillar 130 , so that the mounting bracket 150 is close to the rotating shaft 300 , reducing the overall volume of the mounting bracket 150 , thereby reducing the production cost.

[0066] The mounting bracket 150 may include a base plate and a connecting rod. The base plate may be a circular structure, a trapezoidal structure or other shapes, such as Figure 4 and Figure 5 As shown, the base plate is a rectangular structure.

[0067] like Figure 4 and Figure 5 As shown, the two ends of the connecting rod are respectively connected to the first pillar 130 and the lower surface of the base plate, and the connecting rod, the base plate and the first pillar 130 form a triangular structure, which can improve the stability of the mounting bracket 150, prevent the driving device 400 from falling from the mounting bracket 150 and being damaged or causing harm to nearby personnel during operation, and improve the safety of the shielding device during use.

[0068] By disposing the mounting bracket 150, the stability of the driving device 400 during operation can be improved, thereby preventing the driving device 400 from falling and being damaged and causing harm to nearby personnel.

[0069] In some embodiments, the shielding device further comprises a plurality of light sensors and a first controller.

[0070] Among them, multiple light sensors are respectively installed at different positions on the upper surface of the shielding plate 200, and are used to collect the light intensity at various positions on the upper surface of the shielding plate 200. For example, multiple light sensors are arranged at intervals along the east-west direction, and the multiple light sensors respectively collect the light intensity at various positions on the upper surface of the shielding plate 200 in the east-west direction.

[0071] The first controller is electrically connected to the plurality of light sensors and the control end of the driving device 400 , and is used to control the working state of the driving device 400 based on the maximum value of the light intensity collected by the plurality of light sensors.

[0072] During the actual implementation process, the multiple light sensors on the upper surface of the shielding plate 200 collect the light intensity of the sun shining on the shielding plate 200 in real time, and the first controller compares the light intensities collected by the multiple light sensors, and controls the working state of the driving device 400 based on the position of the light sensor that collects the maximum light intensity. For example, when the initial state of the shielding plate 200 is horizontal and the light intensity collected by the light sensor located in the middle of the upper surface of the shielding plate 200 is the maximum value, the first controller controls the driving device 400 to remain in a stopped state; when the light intensity collected by the light sensor located on the rear side of the upper surface of the shielding plate 200 is the maximum value, the first controller controls the driving device 400 to remain in a stopped state. When the light intensity is at its maximum value, the first controller controls the driving device 400 to drive the rotating shaft 300 to drive the baffle plate 200 to rotate backward until the light sensor located in the middle of the upper surface of the baffle plate 200 is at the position with the maximum light intensity, and the first controller controls the driving device 400 to stop; when the light intensity collected by the light sensor located on the front side of the upper surface of the baffle plate 200 is at its maximum value, the first controller controls the driving device 400 to drive the rotating shaft 300 to drive the baffle plate 200 to rotate forward until the light sensor located in the middle of the upper surface of the baffle plate 200 is at the position with the maximum light intensity, and the first controller controls the driving device 400 to stop.

[0073] It should be noted that, when the driving device 400 drives the rotating shaft 300 to drive the shielding plate 200 to rotate to other designated positions, the first controller may control the driving device 400 to stop.

[0074] By setting the above-mentioned light sensor and the first controller, the shielding angle of the shielding plate 200 can be accurately controlled in real time according to the position of the maximum light intensity on the shielding plate 200, further preventing sunlight from directly hitting the electrical equipment 700, and the control accuracy is high.

[0075] In some other embodiments, the shielding device further includes a second controller, which is electrically connected to the control end of the driving device 400 and is used to control the working state of the driving device 400 based on the daily schedule information.

[0076] The daily schedule information can be input into the second controller, and the second controller can obtain the position information of the sun at each time of the day according to the daily schedule information, and control the driving device 400 to drive the rotating shaft 300 to drive the shielding plate 200 to rotate to the specified position according to the information.

[0077] By configuring the second controller to control the working state of the driving device 400 based on daily schedule information, the number of components can be reduced, thereby reducing production costs to a certain extent.

[0078] In some embodiments, Figure 1-Figure 3 As shown, the first pillar 130 and the second pillar 140 each include a first pillar 110 and a second pillar 120 .

[0079] The first column 110 and the second column 120 may be one or more, for example, Figure 1-Figure 3 As shown, there are two first columns 110 and two second columns 120, the upper ends of the two first columns 110 are respectively connected to the two ends of the rotating shaft 300, and the lower ends of the two first columns 110 are respectively connected to the two second columns 120, the second columns 120 are sleeved on the outside of the first columns 110, and the first columns 110 and the second columns 120 are slidably connected in the axial direction, that is, the first column 110 can move in the axial direction relative to the second column 120, one group of the first columns 110 and the second columns 120 form a first pillar 130, and the other group of the first columns 110 and the second columns 120 form a second pillar 140.

[0080] like Figure 1-Figure 3 As shown, the first column 110 and the second column 120 can be limited by snap fasteners, bonding or other limiting structures, so that the relative positions of the first column 110 and the second column 120 can be temporarily fixed.

[0081] During the actual implementation process, since the installation heights of different electrical equipment 700 outdoors may be different, when the installation height of the electrical equipment 700 is low, the first column 110 can be moved downward to a suitable height relative to the second column 120, and the first column 110 and the second column 120 can be fixed by a limiting structure; when the installation height of the electrical equipment 700 is high, the first column 110 can be moved upward to a suitable height relative to the second column 120, and the first column 110 and the second column 120 can be fixed by a limiting structure.

[0082] By setting the above-mentioned first column 110 and second column 120, the support frame 100 can adjust its own height when applied to electrical equipment 700 with different installation heights, thereby avoiding the situation that the support frame 100 is too high and the electrical equipment 700 is too low to effectively block the sun, and avoiding the situation that the support frame 100 is too low and the electrical equipment 700 is too high to make the support frame 100 unable to be installed.

[0083] In some embodiments, Figure 2 and Figure 3 As shown, the shielding device further includes a support leg 310 , which is located on the upper side of the rotating shaft 300 , and two ends of the support leg 310 are respectively connected to the shielding plate 200 and the rotating shaft 300 .

[0084] There are multiple legs 310, and the multiple legs 310 are respectively located at both ends of the rotating shaft 300, for example, Figure 2 and Figure 3 As shown, two legs 310 are provided at both ends of the rotating shaft 300, and the two ends of the legs 310 are respectively connected to the lower surface of the shielding plate 200 and the rotating shaft 300, and the two legs 310 at each end are respectively located on both sides of the axis of the rotating shaft 300, and the legs 310 are inclined between the shielding plate 200 and the rotating shaft 300, that is, the two legs 310 located at the same end of the rotating shaft 300 present an inverted eight shape.

[0085] like Figure 2 and Figure 3 As shown, the leg 310 and the shielding plate 200 can be connected by means including but not limited to welding, snaps, threaded connection or other connection methods; the leg 310 and the rotating shaft 300 can be connected by means including but not limited to welding, snaps, threaded connection or other connection methods.

[0086] like Figure 2 and Figure 3 As shown, the shaft 300 can be located in the middle of the shielding plate 200, or at the side or other positions of the shielding plate 200. For example, as shown in the figure, the shaft 300 is located in the middle of the shielding plate 200, and the support legs 310 are supported in the middle of the shielding plate 200 to make the overall force of the shielding plate 200 uniform, thereby improving the stability of the shielding plate 200.

[0087] It should be noted that the support leg 310 may also be connected between the shielding plate 200 and the rotating shaft 300 in other ways, and the support leg 310 may also be connected to the middle part of the rotating shaft 300 .

[0088] Since the outer wall of the rotating shaft 300 is an arc-shaped structure, a support leg 310 is provided between the shielding plate 200 and the rotating shaft 300, which can improve the supporting stability of the shielding plate 200 by the rotating shaft 300, avoid the shielding plate 200 falling due to the unstable connection between the shielding plate 200 and the rotating shaft 300, and improve the safety of the shielding device.

[0089] In some embodiments, Figure 4 and Figure 5 As shown, the upper end of the rotating shaft 300 defines a mounting plane, and at least a portion of the shielding plate 200 is mounted in contact with the mounting plane.

[0090] Among them, Figure 4 and Figure 5 As shown, the rotating shaft 300 is a semi-cylindrical structure as a whole, and the planar section of the rotating shaft 300 is arranged toward the shielding plate 200. The planar section is the installation plane of the rotating shaft 300. At least a part of the lower surface of the shielding plate 200 is a planar section, and the planar section of the shielding plate 200 is installed on the installation plane of the rotating shaft 300.

[0091] like Figure 4 and Figure 5 As shown, the plane section of the shielding plate 200 is arranged to fit the installation plane of the rotating shaft 300, and the plane section of the shielding plate 200 and the installation plane of the rotating shaft 300 can be connected by welding, bonding, threaded connection or other connection methods.

[0092] By defining a mounting plane on the rotating shaft 300 and mounting at least a portion of the shielding plate 200 on the mounting plane, the contact area between the shielding plate 200 and the rotating shaft 300 can be increased, thereby improving the connection stability between the shielding plate 200 and the rotating shaft 300.

[0093] In some embodiments, Figure 1-Figure 5 As shown, the electrical device 700 is installed on the column 500 through the hanging bracket 600, and the lower end of the support frame 100 is supported on the ground or the hanging bracket 600.

[0094] Wherein, in one embodiment, Figure 1-Figure 3 As shown, the lower end of the support frame 100 is supported on the hanging bracket 600, and the lower end of the support frame 100 can be connected to the hanging bracket 600 by means including but not limited to welding, bonding, snap fasteners, threaded connection or other methods to fix the support frame 100 on the hanging bracket 600.

[0095] like Figure 1-Figure 3 As shown, since the electrical equipment 700 is installed on the column 500 through the hanging bracket 600, that is, the installation height of the electrical equipment 700 is the same as the installation height of the hanging bracket 600, at this time, the height of the support frame 100 relative to the ground changes with the height of the hanging bracket 600 relative to the ground, and the height difference between the upper end of the support frame 100 and the upper end of the electrical equipment 700 is a fixed value, so the support frame 100 may include a first pillar 130 and a second pillar 140 with a fixed length, and the lower ends of the first pillar 130 and the second pillar 140 are both supported on the hanging bracket 600.

[0096] By supporting the support frame 100 on the hanging bracket 600, the overall height of the support frame 100 can be shortened, the material usage can be reduced, and thus the production cost can be reduced. Moreover, there is no need to change the height of the support frame 100, and the installation operation is simple.

[0097] In another embodiment, Figure 4 and Figure 5 As shown, the lower end of the support frame 100 is supported on the ground, and the lower end of the support frame 100 can be installed on the ground by means including but not limited to bonding, snap fasteners, threaded connection or other methods.

[0098] Since the height difference between the upper end of the electrical device 700 and the upper end of the support frame 100 changes with the height of the electrical device 700 relative to the ground, the support frame 100 may include a first column 110 and a second column 120 connected in an axial sliding manner so that the height of the support frame 100 can change with the height of the electrical device 700.

[0099] By supporting the support frame 100 on the ground, the stability of the support frame 100 can be improved, and the ground can be used to provide sufficient supporting force for the support frame 100.

[0100] In some embodiments, Figure 1-Figure 3 As shown, the shielding plate 200 is a planar structure.

[0101] Among them, Figure 1-Figure 3 As shown, the shielding plate 200 is a planar structure as a whole, and has a simple structure, which can reduce the cost of producing molds, shorten processing time, and improve production efficiency.

[0102] In other embodiments, Figure 4 and Figure 5 As shown, the shielding plate 200 has a curved surface segment 210 , and the center of curvature of the curved surface segment 210 is located below the shielding plate 200 .

[0103] Among them, Figure 4 and Figure 5 As shown, the shielding plate 200 has a flat section on the side close to the rotating shaft 300 in the width direction, and has a curved section 210 on the side away from the rotating shaft 300 in the width direction. The curved section 210 is arched upward relative to the horizontal plane, that is, the center of curvature of the curved section 210 is located below the shielding plate 200.

[0104] By setting the arc segment 210 , the effective area of ​​the shielding plate 200 for shielding sunlight can be increased, so that the shielding plate 200 can shield more sunlight, further improving the shielding effect of the shielding plate 200 .

[0105] The present application also provides a photovoltaic power station. Figure 1-Figure 5 As shown, the photovoltaic power station includes a shielding device as in any of the above embodiments, a column 500 and an electrical device 700, the electrical device 700 is installed on the column 500, the electrical device 700 is installed on the column 500 through a hanging bracket 600, and the electrical device 700 is located below the shielding plate 200 of the shielding device.

[0106] According to the photovoltaic power station provided by the embodiment of the present application, by adopting the shielding device of any of the above-mentioned embodiments, the shielding angle of the shielding plate 200 can be changed with the change of the position of the sun, thereby preventing sunlight from directly irradiating on the electrical equipment 700, reducing the loss of the electrical equipment 700, ensuring the power generation efficiency and power generation of the electrical equipment 700, and at the same time preventing substances such as rain and hail from damaging the casing of the electrical equipment 700, thereby extending the service life of the electrical equipment 700.

[0107] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0108] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0109] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0110] In the description of the present application, “plurality” means two or more.

[0111] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0112] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0113] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0114] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A shielding device, applied to electrical equipment, characterized in that: include: A support frame, the support frame is suitable for being installed on the outside of the electrical equipment; A rotating shaft, the rotating shaft is rotatably mounted on the upper end of the supporting frame; A shielding plate, the shielding plate is mounted on the rotating shaft, and the shielding plate is suitable for being located above the electrical equipment; A driving device, wherein an output end of the driving device is connected to the rotating shaft and is used for driving the rotating shaft to rotate.

2. The shielding device according to claim 1, characterized in that: The support frame comprises: A first support and a second support, wherein the first support and the second support are suitable for being located at two sides of the electrical device respectively, and at least one of the first support and the second support is provided with a mounting bracket, and the driving device is mounted on the mounting bracket.

3. The shielding device according to claim 2, characterized in that: The first pillar and the second pillar both include: a first column, wherein the upper end of the first column is connected to the rotating shaft; The second column is sleeved on the outside of the first column, and the first column and the second column are slidably connected in the axial direction.

4. The shielding device according to any one of claims 1 to 3, characterized in that: Also includes: A plurality of light sensors, each of which is mounted at different positions on the upper surface of the shielding plate and is used to collect light intensity at various positions on the upper surface of the shielding plate; A first controller is electrically connected to the multiple light sensors and a control end of the driving device, and is used to control a working state of the driving device based on a maximum value of light intensity collected by the multiple light sensors.

5. The shielding device according to any one of claims 1 to 3, characterized in that: Also includes: A second controller is electrically connected to a control end of the driving device and is used to control a working state of the driving device based on daily schedule information.

6. The shielding device according to any one of claims 1 to 3, characterized in that: Also includes: A supporting leg is located on the upper side of the rotating shaft, and two ends of the supporting leg are respectively connected to the shielding plate and the rotating shaft.

7. The shielding device according to any one of claims 1 to 3, characterized in that: The upper end of the rotating shaft defines a mounting plane, and at least a portion of the shielding plate is mounted in close contact with the mounting plane.

8. The shielding device according to any one of claims 1 to 3, characterized in that: The electrical equipment is installed on the column through a hanging bracket, and the lower end of the support frame is installed on the ground or on the hanging bracket.

9. The shielding device according to any one of claims 1 to 3, characterized in that: The shielding plate is a planar structure; or, The shielding plate has a curved surface segment, and the center of curvature of the curved surface segment is located below the shielding plate.

10. A photovoltaic power station, characterized in that: include: The shielding device according to any one of claims 1 to 9; Column; The electrical equipment is installed on the column and is located below the shielding plate of the shielding device.

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