Folding photovoltaic frame and storable photovoltaic energy storage station comprising same

Abstract

The invention belongs to the field of photovoltaic technology, and particularly relates to a folding photovoltaic frame and a storable photovoltaic energy storage station comprising the same, the folding photovoltaic frame comprises a photovoltaic panel, a bottom frame, a top frame for placing the photovoltaic panel and a support frame, the support frame comprises a main frame and an auxiliary frame, and a relaxation connecting mechanism is arranged between the main frame and the auxiliary frame; the main frame comprises an upper part and a lower part which are mutually hinged, the upper end of the upper part of the main frame is connected with the side edge of the top frame, and the lower end of the lower part of the main frame is connected with the side edge of the bottom frame; the auxiliary frame comprises an auxiliary frame upper part and an auxiliary frame lower part which are mutually hinged, the upper end of the auxiliary frame upper part is hinged to the main frame upper part, and the lower end of the auxiliary frame lower part is hinged to the main frame lower part; one end of the connecting mechanism is arranged at the hinged part of the upper part and the lower part of the main frame, and the other end is arranged at the hinged part of the upper part and the lower part of the auxiliary frame; the LED lamp is large in illumination area, convenient to store and carry, capable of being rapidly deployed in the outdoor environment and suitable for various field severe environments.

Description

Technical Field

[0001] The present invention belongs to the field of photovoltaic technology, and more specifically, relates to a foldable photovoltaic frame and a retractable photovoltaic energy storage station comprising the foldable photovoltaic frame. Background Art

[0002] At present, energy storage stations are generally constructed in planned plots, which requires civil engineering costs. The construction process involves the transportation and landing of large components, such as containers, refrigeration units, battery cell stacks, photovoltaic panels, brackets, etc., and the installation process is relatively troublesome. Photovoltaic energy storage stations generally separate the photovoltaic panel array from the energy storage facilities, which will occupy some additional land resources or building resources. Photovoltaic arrays with fixed brackets require a stable foundation. Energy storage facilities are usually carried out in cabinets and houses, combined with converters, transformers, switch cabinets, controllers, security equipment, etc. Basically, once invested, they become fixed assets and are not easily moved. At present, photovoltaic energy storage stations are developing towards scale and large capacity, and they serve as facilities such as residential communities, car charging stations and public services. This means that the energy storage stations under construction are mainly used in urban areas, and require more open and flat land, more energy storage carriers and power grid matching.

[0003] For some areas that do not have good civil engineering conditions and are restricted on the ground and aboveground space, such as mountainous areas, valleys, and tidal flats, there is a demand for photovoltaic storage, but it is not convenient to build large and medium-sized energy storage bases on a large scale; in some field environments where special operations are carried out, there is only a short-term demand for energy storage and energy use, and there is also a tendency to use clean photovoltaic resources, but the electricity capacity is not large, the cost of building fixed energy storage stations is too high, and the utilization rate of energy storage stations is low.

[0004] Therefore, the existing energy storage site construction is not suitable for these application scenarios, cannot be quickly deployed, and is difficult to transfer in the face of environmental changes. Summary of the invention

[0005] The present invention aims to overcome at least one of the above-mentioned deficiencies of the prior art and provides a foldable photovoltaic frame and a retractable photovoltaic energy storage station including the same, so as to overcome the problem of the narrow application range of the existing energy storage stations.

[0006] One of the purposes of the present invention is to provide a foldable photovoltaic frame, comprising a photovoltaic panel, a bottom frame, a top frame for placing the photovoltaic panel and a support frame, the support frame is adjustable in height, the support frame comprises a main frame and an auxiliary frame, and a retractable connecting mechanism is arranged between the main frame and the auxiliary frame; the main frame comprises an upper part and a lower part hinged to each other, the upper end of the upper part of the main frame is connected to the side of the top frame, and the lower end of the lower part of the main frame is connected to the side of the bottom frame; the auxiliary frame comprises an upper part of an auxiliary frame and a lower part of an auxiliary frame hinged to each other, the upper end of the upper part of the auxiliary frame is hinged to the upper part of the main frame, and the lower end of the lower part of the auxiliary frame is hinged to the lower part of the main frame; one end of the connecting mechanism is arranged at the hinge of the upper and lower parts of the main frame, and the other end of the connecting mechanism is arranged at the hinge of the upper and lower parts of the auxiliary frame.

[0007] The height-adjustable support frame connects the top frame and the bottom frame. The support frame consists of a main frame and an auxiliary frame, and a retractable connection mechanism is provided between the main frame and the auxiliary frame. The distance between the hinge of the main frame and the hinge of the auxiliary frame is adjusted by the connection mechanism, so that the main frame and the auxiliary frame can be folded down or up, thereby lowering or raising the height of the support frame, so that the photovoltaic frame can achieve a foldable effect.

[0008] Furthermore, the main frame also includes a first hinge device, the upper part of the main frame includes an upper support rod, the lower part of the main frame includes a lower support rod, the tail end of the upper support rod and the head end of the lower support rod are respectively hinged on the first hinge device and rotate relative to the first hinge device; the upper support rod is connected to the side of the top frame, and the lower support rod is connected to the side of the bottom frame;

[0009] The auxiliary frame also includes a second hinge device, the upper part of the auxiliary frame includes an auxiliary upper support rod, and the lower part of the auxiliary frame includes an auxiliary lower support rod. The tail end of the auxiliary upper support rod and the head end of the auxiliary lower support rod are respectively hinged on the second hinge device and rotate relative to the second hinge device; the auxiliary upper support rod is hinged to the upper support rod, and the auxiliary lower support rod is hinged to the lower support rod. A connecting mechanism is provided between the first hinge device and the second hinge device.

[0010] The auxiliary upper support rod and the auxiliary lower support rod are respectively hinged on the second hinge device, and can rotate relative to the second hinge device. The first hinge device and the second hinge device are arranged relatively; when the height needs to be lowered, the distance between the first hinge device and the second hinge device is increased through the connection mechanism, and the support frame is pressed so that the upper and lower support rods and the auxiliary upper and lower support rods are folded downward, thereby reducing the height of the support frame and achieving the folding effect; when the height needs to be increased, the distance between the first hinge device and the second hinge device is reduced through the connection mechanism so that the upper and lower support rods and the auxiliary upper and lower support rods are folded upward, thereby increasing the height of the support frame. The height of the support frame is adjustable, and due to the action of the connection mechanism, the support frame can be fixed at a certain height without the help of external force, which is suitable for a variety of usage scenarios.

[0011] Furthermore, it also includes a first connecting member, one end of which is hinged to the upper support rod and the other end is hinged to the auxiliary upper support rod; and / or, it also includes a second connecting member, one end of which is hinged to the lower support rod and the other end is hinged to the auxiliary lower support rod.

[0012] The auxiliary upper support rod is set on the upper support rod, and the auxiliary lower support rod is set on the lower support rod. In the process of adjusting the height of the support frame, the auxiliary upper and lower support rods need to rotate relative to the upper and lower support rods. A connecting piece is set at the connection between the two to reduce wear during relative rotation, increase service life, and also make the connection between the two more stable.

[0013] Further, the top frame includes a first fixed frame and a first telescopic frame, one end of the first telescopic frame is connected to the first fixed frame, and one end is connected to the upper part of the main frame, and one end of the photovoltaic panel on the top frame is arranged on the first telescopic frame to follow the telescopic movement of the first telescopic frame;

[0014] The bottom frame comprises a second fixed frame and a second telescopic frame, the second telescopic frame can adjust the length, one end of the second telescopic frame is connected to the second fixed frame, and the other end is connected to the lower part of the main frame.

[0015] The telescopic part is arranged on the left and right sides of the fixed frame, and the photovoltaic panels are arranged on the fixed frame and the telescopic frame. When the photovoltaic frame is used, the telescopic frame is pulled outward to expand the photovoltaic panels arranged on the telescopic frame to increase the photovoltaic area; when the photovoltaic frame is stored, the telescopic frame is pushed toward the fixed frame to a compressed state for easy storage.

[0016] Furthermore, the telescopic frame includes a telescopic rod and a side rod, one end of the telescopic rod is connected to one side of the fixed frame, and the other end is connected to the side rod, the telescopic rod can telescope relative to the fixed frame, and one end of the photovoltaic panel is arranged on the side rod.

[0017] The telescopic rod telescopically moves relative to the fixed frame, driving one end of the photovoltaic panel arranged on the side rod to telescopically move, thereby increasing or decreasing the area of ​​the photovoltaic panel.

[0018] Furthermore, the photovoltaic panel arranged on the top frame is a flexible photovoltaic panel, a winding mechanism is arranged on the side rod, and one end of the flexible photovoltaic panel is arranged on the winding mechanism.

[0019] The two sides of the flexible photovoltaic panel are respectively arranged on the rolling mechanism, and the rolling mechanism moves with the telescopic frame. When the photovoltaic panel is stored, the rolling mechanism rotates to roll up the photovoltaic panel to prevent the photovoltaic panel from being damaged due to multiple folding.

[0020] The second object of the present invention is to provide a retractable photovoltaic energy storage station, comprising a main unit, at least one extension unit and an energy storage box; the main unit and the extension unit are both the foldable photovoltaic rack, the foldable photovoltaic rack comprises two support racks, the two support racks are arranged opposite to each other along a first direction, and an installation space is formed between the top frame and the bottom frame of the foldable photovoltaic rack;

[0021] At least one extension unit is sequentially provided on both sides of the main unit along a second direction, the second direction is perpendicular to the first direction, the height of the extension unit is lower than the height of the main unit, and the heights of several extension units decrease sequentially from the middle to both sides, and the main unit and the extension unit, as well as the extension units and the extension units are connected by a connecting mechanism, and the connecting mechanism is used to sequentially store the extension units toward the main unit or sequentially release the extension units toward both sides of the main unit; when the extension units are sequentially released toward both sides of the main unit, several installation spaces are connected to form an installation cavity of the photovoltaic energy storage station, and an energy storage box is arranged in the installation cavity, and the energy storage box is used to store the electric energy generated by the photovoltaic panel.

[0022] The present invention provides a retractable photovoltaic energy storage station, the main body of which is a compressible and foldable shed body, the shed body is composed of a main unit and a plurality of extension units arranged outward in sequence, the middle section unit is connected to the extension unit, and the extension units are connected to each other through a connecting mechanism, a flexible photovoltaic panel is arranged on the roof, one end of the flexible photovoltaic panel is arranged on a reeling mechanism, and the reeling mechanism is connected to a telescopic frame. The telescopic frame is initially in a compressed state, and when it is unfolded in the width direction, the reeling mechanism is driven to rotate by the outward stretching movement of the telescopic frame, so that the flexible photovoltaic panel arranged on the reeling mechanism is stretched to increase the light receiving area; in the length direction, a plurality of extension units are stacked under the main unit, and when unfolded, the extension unit is pushed outward from the bottom of the main unit, and each extension unit is in a fully unfolded state, so that the photovoltaic panels of the plurality of extension units can be illuminated, and the light receiving area is increased; when unfolded, a plurality of installation spaces are connected to form an installation cavity of the photovoltaic energy storage station, and the energy storage box is arranged in the installation cavity. The height of the support frames on both sides can be adjusted according to the sunlight conditions of the use site, so that a certain height difference is formed on the support frames on both sides, and the photovoltaic panels arranged on the photovoltaic frames form a certain angle to increase the illumination area.

[0023] Furthermore, the main unit and the extension unit, and the extension units and the extension units are connected by at least two tie mechanisms, the tie mechanisms include a first tie mechanism and a second tie mechanism, the upper end of the first tie mechanism is arranged on the side of the top frame, and the lower end is connected to the upper part of the main frame, and the upper end of the second tie mechanism is arranged on the side of the bottom frame, and the lower end extends toward the lower side of the bottom frame;

[0024] The first linkage mechanism includes a top side frame, a slide groove and a slider, wherein the slide groove is arranged on the top side frame of the main unit and each extension unit, one end of the slider is arranged inside the slide groove, and the other end is slidably arranged in the slide groove of the adjacent extension unit, the upper end of the top side frame is connected to the side of the top frame, and the lower end is connected to the upper part of the main frame;

[0025] The second connecting mechanism includes a bottom side frame, a slide groove and a slider. The slide groove is arranged on the bottom side frame of the main unit and each extension unit. One end of the slider is arranged on the inner side of the slide groove, and the other end is slidably arranged in the slide groove of the adjacent extension unit. The upper end of the bottom side frame is connected to the side of the bottom frame.

[0026] One end of the slider is arranged on the slide groove and slides along the inner wall of the slide groove. One end of the side frame is arranged on the top side rod. When multiple units are connected, the slider is embedded in the adjacent slide groove, so that the adjacent photovoltaic racks can slide along the slide groove. Preferably, both ends of the slide groove are closed to limit the slider arranged in the slide groove. The top side frame and the bottom side frame have a certain length downward, leaving a storage height for the extended unit, which is convenient for the photovoltaic station to store.

[0027] Furthermore, it also includes side photovoltaic panels, which are arranged on the top side frames.

[0028] The side photovoltaic panels are arranged on the top side frames. When in use, the side photovoltaic panels are flipped outwards and laid flat to increase the photovoltaic area.

[0029] Furthermore, it also includes a cleaning felt strip, the upper end of which is arranged on the lower surface of the top frame, and the height of the cleaning felt strip does not exceed the height difference of adjacent units.

[0030] The cleaning felt strips are arranged on the lower surface of the top frame. When the adjacent extending units are retracted, the dust on the lower photovoltaic panels can be scraped off by the cleaning felt strips. Meanwhile, the cleaning felt strips can also play a role of buffer protection and reduce the loss of the photovoltaic panels.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The photovoltaic energy storage station designed by the present invention is a foldable shed body with compressed height, length and width, which is easy to store and carry, can be quickly deployed in outdoor environments, and is suitable for a variety of occasions including rugged ground. In areas far away from the urban power grid, outdoor camps, etc., solar energy can be used with low investment to store electricity for production and life needs, which is convenient for some field operations and reduces the consumption of fossil fuels.

[0033] 2. When encountering adverse weather conditions or needing to relocate the work site, the entire set of equipment of the present invention can be quickly changed from the use state to the storage state, and the volume occupied is much smaller than that of the existing photovoltaic energy storage station of the same capacity, which is convenient for transfer, storage or transportation.

[0034] 3. The support frame of the present invention that supports the height of the shed can be adjusted in height as needed, and the heights of both sides can be adjusted to form a certain height difference, so that the photovoltaic panels on the top can form a certain angle to adapt to the incident angle of sunlight, so as to obtain a longer lighting time and increase photovoltaic power generation.

[0035] 4. The present invention arranges side photovoltaic panels, which increase the photovoltaic area on the basis of the original top photovoltaic panel, thereby increasing the overall light-receiving area and light power generation.

[0036] 5. The present invention provides cleaning felt strips on the lower surface of the top frame. During the retraction of adjacent extending units, the dust accumulated on the lower photovoltaic panels can be scraped off by the cleaning felt strips. Meanwhile, the cleaning felt strips can also play a role of buffer protection and reduce the loss of the photovoltaic panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the partial structure of the photovoltaic rack according to Example 1 of the present invention.

[0038] Figure 2 This is a schematic diagram of the structure of the support frame of Example 1 of the present invention.

[0039] Figure 3 It is a schematic diagram of the partial structure of two adjacent extension units according to Example 1 of the present invention.

[0040] Figure 4 It is a schematic diagram of the local structure of Example 1 of the present invention.

[0041] Figure 5 It is a schematic diagram of the partial structure of the bottom frame of Example 1 of the present invention.

[0042] Figure 6 This is a schematic diagram of the unfolded use state of Example 2 of the present invention.

[0043] Figure 7 This is a schematic diagram of the internal structure of the expanded state of Example 2 of the present invention.

[0044] Figure 8 This is a cross-sectional view of the extension unit in the folded state of Example 2 of the present invention.

[0045] Marking description: 101-top fixed frame, 102-bottom fixed frame, 201-top telescopic frame, 202-bottom telescopic frame, 3-top side frame, 4-side photovoltaic panel, 5-support frame, 501-upper support rod, 502-lower support rod, 503-auxiliary upper support rod, 504-auxiliary lower support rod, 505-first hinge device, 506-retractor, 507-wire rope, 508-second hinge device, 509-first connecting piece, 510- The second connecting piece, 6-structural stabilizing rod, 7-bottom side frame, 8-castor, 9-tie mechanism, 901-slider, 902-slide, 10-reel, 11-flexible photovoltaic panel, 12-pressure wheel, 13-cleaning felt strip, 14-flat plate, 15-additional plate, 16-transition plate, 17-lightweight panel assembly, 18-side photovoltaic panel stabilizing rod, 19-ventilator, 20-wind guide component, 21-energy storage box, 22-power transmission box, 23-control box. DETAILED DESCRIPTION

[0046] The drawings of the present invention are only for illustrative purposes and should not be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it is understandable to those skilled in the art that some well-known structures and their descriptions in the drawings may be omitted.

[0047] Example 1

[0048] A foldable photovoltaic frame comprises a photovoltaic panel 11, a bottom frame, a top frame for placing the photovoltaic panel 11, and a support frame. When the number of support frames 5 is set to one, the support frame 5 comprises a main frame and an auxiliary frame, and a retractable connecting mechanism is arranged between the main frame and the auxiliary frame; the main frame comprises an upper part and a lower part hinged to each other, the upper end of the upper part of the main frame is connected to the side of the top frame, and the lower end of the lower part of the main frame is connected to the side of the bottom frame; the auxiliary frame comprises an upper part and a lower part of an auxiliary frame hinged to each other, the upper end of the upper part of the auxiliary frame is hinged to the upper part of the main frame, and the lower end of the lower part of the auxiliary frame is hinged to the lower part of the main frame; one end of the connecting mechanism is arranged at the hinge of the upper and lower parts of the main frame, and the other end of the connecting mechanism is arranged at the hinge of the upper and lower parts of the auxiliary frame.

[0049] The height-adjustable support frame connects the top frame and the bottom frame. The support frame consists of a main frame and an auxiliary frame. A retractable connecting mechanism is provided between the main frame and the auxiliary frame. The distance between the hinge of the main frame and the hinge of the auxiliary frame is adjusted through the connecting mechanism, so that the main frame and the auxiliary frame can be folded downward or upward, thereby lowering or raising the height of the support frame, so that the photovoltaic frame can achieve a foldable effect.

[0050] This embodiment provides a foldable photovoltaic frame. Figure 1As shown, it includes a photovoltaic panel 11, a bottom frame, a top frame for placing the photovoltaic panel and two support frames 5, the support frames 5 are adjustable in height, the support frames 5 include a main frame and an auxiliary frame, and a retractable connecting mechanism is arranged between the main frame and the auxiliary frame; the main frame includes an upper part and a lower part hinged to each other, the upper end of the upper part of the main frame is connected to the side of the top frame, and the lower end of the lower part of the main frame is connected to the side of the bottom frame; the auxiliary frame includes an upper part of an auxiliary frame and a lower part of an auxiliary frame hinged to each other, the upper end of the upper part of the auxiliary frame is hinged to the upper part of the main frame, and the lower end of the lower part of the auxiliary frame is hinged to the lower part of the main frame; one end of the connecting mechanism is arranged at the hinge of the upper and lower parts of the main frame, and the other end of the connecting mechanism is arranged at the hinge of the upper and lower parts of the auxiliary frame.

[0051] The height-adjustable support frame 5 is arranged on both sides of the top frame and the bottom frame to connect the top frame and the bottom frame. The support frame 5 consists of a main frame and an auxiliary frame. A retractable connecting mechanism is arranged between the main frame and the auxiliary frame. The distance between the main frame and the auxiliary frame is adjusted by the connecting mechanism so that the main frame and the auxiliary frame are folded downward, thereby reducing the height of the support frame 5 and making the photovoltaic frame foldable. The height of the support frames 5 on both sides can be adjusted. The height of the support frames 5 on both sides can be adjusted according to the sunlight conditions of the use site, so that the flexible photovoltaic panels 11 arranged on the photovoltaic frame form a certain angle to increase the illumination area.

[0052] like Figure 2 As shown, the main frame includes an upper support rod 501, a lower support rod 502 and a first hinge device 505. The tail end of the upper support rod 501 and the head end of the lower support rod 502 are respectively hinged on the inner plane of the first hinge device 505. The upper support rod 501 and the lower support rod 502 can rotate inward and outward relative to the first hinge device 505. The upper support rod 501 is connected to the side of the top frame, and the lower support rod 502 is connected to the side of the bottom frame.

[0053] The auxiliary frame includes an auxiliary upper support rod 503, an auxiliary lower support rod 504 and a second hinge device 508. The tail end of the auxiliary upper support rod 503 and the head end of the auxiliary lower support rod 504 are respectively hinged on the inner plane of the second hinge device 508. The first hinge device 505 and the second hinge device 508 are arranged opposite to each other. The auxiliary upper support rod 503 and the auxiliary lower support rod 504 can rotate relative to the second hinge device; the auxiliary upper support rod 503 is hinged on the upper support rod 501, and the auxiliary lower support rod 504 is hinged on the lower support rod 502. A connecting mechanism is arranged between the first hinge device 505 and the second hinge device 508.

[0054] Preferably, it also includes a first connecting member 509, one end of which is hinged to the upper support rod 501 and the other end is hinged to the auxiliary upper support rod 503, and also includes a second connecting member 510, one end of which is hinged to the lower support rod 502 and the other end is hinged to the auxiliary lower support rod 504.

[0055] The auxiliary upper support rod 503 is arranged on the upper support rod 501, and the auxiliary lower support rod 504 is arranged on the lower support rod 502. In the process of adjusting the height of the support frame, the auxiliary upper and lower support rods need to rotate relative to the upper and lower support rods. By arranging a connecting piece at the connection between the two, the sliding wear during relative rotation is reduced, the service life is increased, and the connection between the two is also made more stable. Preferably, the first connecting piece 509 and the second connecting piece 510 are arranged as shaft sleeve connecting pieces.

[0056] The connection mechanism of the present invention may be a slide rail, an elastic rope, a telescopic rod, etc. In this embodiment, the connection mechanism is composed of a steel wire rope 507 and a wire take-up device 506. The wire take-up device 506 is arranged on the second hinge device 508, and the wire rope 507 arranged on the first hinge device 505 passes through the second hinge device 508 to connect the wire take-up device 506. When it is necessary to lower the height, the length of the wire rope 507 is extended, and the main frame and the auxiliary frame are folded downward due to the gravity of the top frame, and the height of the support frame 5 is reduced. When the required height is reached, the length of the wire rope 507 is fixed by the wire take-up device 506, and the wire rope 507 provides an inward pulling force for the two hinge devices, so that the support frame 5 can be fixed at a certain height, so that the photovoltaic frame can achieve a foldable effect; when it is necessary to raise the height, the length of the wire rope 507 is reduced by the wire take-up device 506, and the main frame and the auxiliary frame are folded upward due to the pulling force of the wire rope 507, thereby increasing the height of the support frame 5; the support frames 5 on both sides can adjust the height, and the height of the support frames 5 on both sides can be adjusted according to the sunlight conditions of the use site, so that the flexible photovoltaic panels 11 arranged on the photovoltaic frame form a certain inclination angle, thereby increasing the illuminated area.

[0057] like Figure 3 As shown, the top frame includes a first fixed frame 101 and a second telescopic frame 201, one end of the first telescopic frame 201 is connected to the first fixed frame 101, and one end is connected to the upper part of the main frame, and one end of the flexible photovoltaic panel 11 is arranged on the first telescopic frame 201 to follow the telescopic movement of the first telescopic frame 201;

[0058] The bottom frame includes a second fixed frame 102 and a second telescopic frame 202. The second telescopic frame 202 can adjust the length. One end of the second telescopic frame 202 is connected to the first fixed frame 201, and the other end is connected to the lower part of the main frame.

[0059] The telescopic frame 2 is arranged on the left and right sides of the fixed frame 1, and the photovoltaic panel 11 is arranged on the fixed frame 1 and the telescopic frame 2. When the photovoltaic frame is used, the telescopic frame 2 is pulled to the left and right to expand the flexible photovoltaic panel 11 arranged on the telescopic frame 2 to increase the photovoltaic area; when the photovoltaic frame is stored, the telescopic frame 2 is retracted to a compressed state for easy storage. Preferably, a pressing wheel 12 is also arranged on the photovoltaic panel to press and guide the photovoltaic panel 11 to prevent the photovoltaic panel 11 from curling up.

[0060] In specific implementation, the telescopic frame includes a telescopic rod and a side rod. One end of the telescopic rod is connected to one side of the fixed frame 1, and the other end is connected to the side rod. The telescopic rod can telescope relative to the fixed frame 1.

[0061] The telescopic rod telescopically moves relative to the fixed frame 1, driving one end of the flexible photovoltaic panel 11 arranged on the side rod to telescopically move, thereby increasing or decreasing the area of ​​the flexible photovoltaic panel.

[0062] In order to save materials and make the frame structure light, the present embodiment specifically sets the frame of the fixing frame 1 to be hollow, and an opening is provided at the connection between the fixing frame 1 and the telescopic rod; when folding, the side rods on the left and right sides are pushed toward the fixing frame 1 so that the telescopic rod is stored in the fixing frame 1, and the area of ​​the telescopic frame 2 is reduced. At this time, the length of the photovoltaic panel needs to be adaptively reduced; when unfolding, the side rods on both sides are pulled away from the fixing frame 1 so that the telescopic rod is pulled out of the fixing frame 1 and extends to both sides of the fixing frame 1, and the area of ​​the telescopic frame 2 is increased.

[0063] During specific implementation, a rolling mechanism is provided on the side rods, and both ends of the flexible photovoltaic panel 11 on the top frame are respectively provided on the rolling mechanisms on both sides.

[0064] The winding mechanism is set as a reel 10, and the two sides of the flexible photovoltaic panel 11 are respectively set on the reel 10; the reel 10 moves with the telescopic frame 1, and when the flexible photovoltaic panel 11 is stored, the reel 10 rotates to roll up the photovoltaic panel 11 to prevent the photovoltaic panel 11 from being damaged due to multiple folding.

[0065] Preferably, there is a spring inside the reel 10 to help the automatic reset and rotation during the storage process.

[0066] Preferably, it further comprises a moving device, which is arranged at the lower end of the bottom side frame.

[0067] The moving device is arranged at the lower end of the bottom frame, and the foldable photovoltaic support frame can be moved to a desired location by using the moving device, thereby increasing the usage scenarios. Preferably, the moving device is arranged as a caster 8 in this embodiment.

[0068] The working method of this embodiment is as follows: in the width direction, the edges at both ends of the flexible photovoltaic panel 11 are respectively connected to the reels 10 of the side frames on both sides. When the flexible photovoltaic panel 11 is stored, the side rods on the left and right sides are pushed toward the fixed frame 1 to shrink the telescopic rods, and the area of ​​the telescopic frame 2 is reduced. At this time, the length of the flexible photovoltaic panel 11 needs to be adaptively reduced, and the excess flexible photovoltaic panel 11 is rolled up by the reel 10 to achieve the effect of storing the flexible photovoltaic panel 11; when the flexible photovoltaic panel 11 is unfolded, the side rods on both sides are pulled away from the fixed frame 1 to extend the telescopic rods to both sides of the fixed frame 1, and the area of ​​the telescopic frame 2 is increased. The flexible photovoltaic panel 11 is unwound by the rotation of the reel 10 until the telescopic rod is extended to the maximum length. At this time, the area of ​​the flexible photovoltaic panel 11 reaches the maximum and is completely laid on the surface of the frame structure composed of the fixed frame 1 and the telescopic frame 2.

[0069] In the height direction, when the height needs to be lowered, the length of the steel wire rope 507 is extended, and the main frame and the auxiliary frame are folded downward due to the gravity of the top frame, and the height of the support frame is reduced. When the required height is reached, the length of the steel wire rope 507 is fixed by the wire take-up device 506, and the steel wire rope 507 provides an inward pulling force for the two fixing devices, so that the support frame can be fixed at a certain height, so that the photovoltaic frame can achieve a foldable effect; when the height needs to be raised, the length of the steel wire rope 507 is reduced by the wire take-up device 506, and the main frame and the auxiliary frame are folded upward due to the pulling force of the steel wire rope 507, thereby increasing the height of the support frame 5; the support frames 5 on both sides can be adjusted in height, and the height of the support frames 5 on both sides can be adjusted according to the sunlight conditions of the use site, so that the flexible photovoltaic panels 11 arranged on the photovoltaic frame form a certain inclination angle, thereby increasing the illuminated area.

[0070] Example 2

[0071] This embodiment provides a retractable photovoltaic energy storage station, such as Figure 6 As shown, it includes a main unit, at least one extension unit and an energy storage box 21; the main unit and the extension unit are both the foldable photovoltaic rack, and the foldable photovoltaic rack includes two support frames 5, the two support frames 5 are arranged opposite to each other along a first direction, and an installation space is formed between the top frame and the bottom frame of the foldable photovoltaic rack;

[0072] At least one extension unit is sequentially provided on both sides of the main unit along the second direction, the second direction is perpendicular to the first direction, the height of the extension unit is lower than the height of the main unit, and the heights of several extension units decrease sequentially from the middle to both sides, and the main unit and the extension unit, and the extension units and the extension units are connected by a connecting mechanism 9, and the connecting mechanism 9 is used to sequentially store the extension units toward the main unit or sequentially release the extension units toward both sides of the main unit; when the extension units are sequentially released toward both sides of the main unit, several installation spaces are connected to form an installation cavity of the photovoltaic energy storage station, and an energy storage box 21 is arranged in the installation cavity, and the energy storage box 21 is used to store the electric energy generated by the photovoltaic panel 11.

[0073] The retractable photovoltaic energy storage station has a main body which is a compressible and foldable shed body. The shed body consists of a main unit and a number of extending units arranged outward in sequence. The main unit is connected to the extending unit, and the extending units are connected to each other through a connecting mechanism 9. A flexible photovoltaic panel 11 is arranged on the roof. The two ends of the flexible photovoltaic panel 11 are respectively arranged on the reels 10 on both sides, and the reels 10 are connected to the telescopic frame 2. In the width direction, the telescopic frame 2 is initially in a compressed state. When unfolded, the reel 10 is driven to rotate by the stretching movement of the telescopic frame 2, so that the flexible photovoltaic panel 11 arranged on the reel 10 is stretched to increase the light receiving area. In the length direction, a number of extending units are stacked under the main unit. When unfolded, the extending unit is pushed out from under the main unit by the moving device 8, and each extending unit is in a fully unfolded state, so that the photovoltaic panels of the several extending units can be exposed to light, thereby increasing the light receiving area. When unfolded, a number of installation spaces are connected to form an installation cavity of the photovoltaic energy storage station. The energy storage box 21 is arranged in the installation cavity. The flexible photovoltaic panel 11 can convert solar energy into electrical energy and store it in the energy storage box 21.

[0074] In a specific implementation, the main unit and the extension unit, and the extension units and the extension units are connected by at least two tie mechanisms, the tie mechanisms include a first tie mechanism and a second tie mechanism, the upper end of the first tie mechanism is arranged on the side of the top frame, and the lower end is connected to the upper part of the main frame, and the upper end of the second tie mechanism is arranged on the side of the bottom frame, and the lower end extends toward the lower side of the bottom frame;

[0075] The first linkage mechanism includes a top side frame 3, a slide groove 902 and a slider 901. The slide groove 902 is arranged on the top side frame 3 of the main unit and each extension unit. One end of the slider 901 is arranged inside the slide groove 902, and the other end is slidably arranged in the slide groove 902 of the adjacent extension unit. The upper end of the top side frame 3 is connected to the side rod of the top frame, and the lower end is connected to the upper part of the main frame.

[0076] The second connecting mechanism includes a bottom side frame 7, a slide groove 902 and a slider 901. The slide groove 902 is arranged on the bottom side frame 7 of the main unit and each extending unit. One end of the slider 901 is arranged on the inner side of the slide groove 902, and the other end is slidably arranged in the slide groove 902 of the adjacent extending unit. The upper end of the bottom side frame 7 is connected to the side rod of the bottom frame.

[0077] Preferably, the two casters 8 are hinged at two ends of the bottom side frame 7 respectively, and grooves for accommodating the casters 8 are provided at two ends of the side edges 7 of the bottom side frame.

[0078] One end of the slider 901 is arranged on the slide groove 902 and slides along the inner wall of the slide groove 902. When multiple photovoltaic racks are connected, the protrusion of the slider 901 is embedded in the slide groove 902 of the adjacent photovoltaic rack, so that the adjacent photovoltaic racks can slide along the slide groove 902; preferably, both ends of the slide groove 902 are closed to limit the slider 901 arranged in the slide groove 902. The slide groove 902 is arranged on the side frame, and the top side frame 3 and the bottom side frame 7 have a certain length downward, leaving a storage height for the extension unit, which is convenient for the photovoltaic station to store.

[0079] During specific implementation, it also includes side photovoltaic panels 4 , which are arranged on the top side frame 3 .

[0080] A flip shaft is provided at the bottom of the top side frame 3, and the shaft is connected to one side of the side photovoltaic panel 4. In the storage state, the side photovoltaic panel 4 flips inwards with the light-receiving surface facing downwards, and in the unfolded state, the side photovoltaic panel 4 flips outwards with the light-receiving surface facing upwards, which can increase the overall light-induced power generation. Preferably, in order to enhance the stability of the side photovoltaic panel 4, the side photovoltaic panel 4 is hinged with a side photovoltaic panel stabilizing rod 18 on both sides, and the other end of the stabilizing rod 18 is hinged to the upper support rod 501.

[0081] In a specific implementation, it also includes a cleaning felt strip 13, which is arranged on the lower surface of the top frame, and the height of the cleaning felt strip 13 does not exceed the height difference of adjacent units.

[0082] The cleaning felt strips 13 are arranged on the lower surface of the top frame. When the adjacent extending units below are retracted, the dust accumulated on the lower photovoltaic panels 11 can be scraped off by the cleaning felt strips 13 . At the same time, they can also play a role of buffering protection and reduce the loss of the photovoltaic panels 11 .

[0083] The working method of this embodiment is as follows:

[0084] When there is an extension unit, the slide groove 902 of the extension unit and the main unit are at the same height, the top side frame 3 of the extension unit is lower than the main unit, and the slider 901 of the main unit is embedded in the slide groove 902 of the extension unit, so that the extension unit is slidably connected to the main unit; when storing, push the extension unit to slide under the main unit to complete the storage, and when unfolding, pull out the extension unit so that the extension unit is fully extended and unfolded to the use length.

[0085] When there are two extension units and they are respectively located on both sides of the main unit, the slide grooves 902 of the extension units and the main unit are located on the same horizontal line, the side frame heights 3 of the two extension units are lower than the main unit, the top frame width of the main unit is greater than twice that of the adjacent extension units, and the main unit is provided with two sliders 901, which are respectively embedded in the slide grooves 902 of the two extension units, so that the two extension units are respectively slidably connected to the main unit; when storing, the two extension units are respectively pushed from both sides to slide under the main unit to complete the storage, and when unfolding, the extension units are respectively pulled out on both sides so that the extension units are fully extended and unfolded to the use length.

[0086] In this embodiment, a main unit is set, named as segment M, and there are 4 segments on each side of the front and back of the main unit, for a total of 9 segments. The width of the main unit is more than twice that of the adjacent protruding unit. In the initial storage state, the 4 protruding units on each side are folded in a nested manner. The protruding unit with the smallest cross-sectional size is located at the innermost, named A4. A3 is one circle larger than A4 in cross-section and surrounds A4; A2 is one circle larger than A3 in cross-section and surrounds A3; A1 is one circle larger than A2 in cross-section and surrounds A2; M is one circle larger than A1 in cross-section and surrounds A1, that is, the main unit. Symmetrically, the subsequent segments starting from segment M are segment B1, B2, B3, and B4 in sequence. Looking from the front, the flexible photovoltaic panels and frames on the top are stacked one layer on top of another, and the bottom frame is also stacked one layer on top of another.

[0087] In the longitudinal expansion stage, the casters 8 folded in the bottom side frame 7 are pulled out and folded down to touch the ground. At this time, the bottom layer of units, i.e., A4 and B4 segments, are pulled out to a distance of about the width of a single photovoltaic panel. Due to the existence of the tie mechanism 9, the A4 and B4 segments automatically pull out the layer above them to move, and then bring out the layers above them one by one, from A4 to A1, from B4 to B1. Each segment is fully extended and expanded to the usable length of the shed.

[0088] In the lateral extension stage, starting from the M section, the two ends of the flexible photovoltaic panel 5 are respectively connected to the reels 10 of the side frames on both sides. When unfolding, the side rods on both sides are pulled away from the fixed frame 1, so that the telescopic rod is pulled out of the fixed frame 1 and extends to both sides of the fixed frame 1, the area of ​​the telescopic frame 2 increases, and the flexible photovoltaic panel 11 is unwound by the rotation of the reel 10 until the telescopic rod is extended to the maximum length. At this time, the area of ​​the flexible photovoltaic panel 11 reaches the maximum and is completely laid on the surface of the frame structure composed of the fixed frame 1 and the telescopic frame 2. Since the shapes of the slider 901 and the slide groove 902 of the tie mechanism 9 have a pulling effect, the lateral extension of the M section will pull A1 and B1, A1 will pull A2, B1 will pull B2, and so on. The lateral extension of each extension unit makes each other close to synchronous and flat to unfold outward. When all sections have reached the widest lateral state, the casters 8 of each section are pressed and braked to realize the position of the shed body.

[0089] In the vertical expansion stage, Figure 8 As shown, the support frame 5 is gradually opened by the wire take-up device 506, so that the shed body is lifted to a predetermined height. Due to the linkage mechanism between the units through the slider 901 and the slide 902, when the lifting starts from the M section, A1 and B1 will also rise accordingly, thereby driving other units such as A2 and B2 to rise synchronously. This process requires precise coordination of the vertical extension amplitude of each unit. The wire take-up device 506 ensures that the wire rope 507 maintains appropriate tension to prevent it from retracting, thereby maintaining the expansion angle and height of the support frame 5, and facilitating the synchronous control of the vertical expansion of each unit segment. The height of the support frame 5 can be set at different levels to ensure that the top photovoltaic panel reaches a preset angle of inclination, which is determined based on the complementary angle of the statistical average value of the solar altitude angle in the application area. In this embodiment, a structural stabilizing rod 6 is also introduced, one end of which is connected to the lower part of the lower support rod 501 by a hinge, and the other end is connected to the long side of the bottom frame to further enhance the stability of the support frame 5.

[0090] When implementing it, Figure 5 As shown, a steel plate is arranged on the bottom frame, which is composed of a flat plate 14 fixed in the middle, an additional plate 16 connected by hinges on the wide side of the flat plate, and a transition plate 15 connected by the long side, which is convenient for the installation of various equipment in the shed and suitable for various harsh environments. In the storage state, the additional plates 16 on both sides are flipped and folded to cover the flat plate 14 in the middle. The upper edge of the transition plate 15 is connected to the outward edge of the middle flat plate 15. When each unit is longitudinally unfolded, the transition plate 15 is placed on the upper layer of the flat plate 14 below, so that the wheeled box can be pushed in without jamming.

[0091] After the shed is fully unfolded, the steel plates laid on the bottom frame are pulled out layer by layer, and the additional plate 16 is turned upward so that the plate surface is connected into one piece. In the specific implementation, it also includes a control box 23 and a power transmission box 22. The energy storage box 21, the control box 23, and the power transmission box 22 are provided with casters 8, which can roll on the plate surface to facilitate moving the box to a designated position. Figure 7 The photovoltaic panel and the control box 23 are provided with wires. The control box 23 is connected to each energy storage box 21 with wires, and the transmission line of the energy storage box 21 is connected to the transmission box 22. The transmission box 22 is also controlled by the control box 23 wiring, and outputs controllable electric energy to the outside. The control box 23, the energy storage box 21, and the transmission box 22 all have independent cooling fans. In the specific implementation, according to the characteristics of rising hot air, an upward air guide component 20 can be designed to facilitate the discharge of heat in the shed.

[0092] Preferably, if Figure 6 As shown, the fully expanded shed is covered with a lightweight panel assembly 17 to protect the equipment inside the shed. The panel assembly under the front and rear shed roofs is embedded with a ventilator 19, and the fan motor can be set to turn according to the wind direction of the external environment, so that fresh air can enter and hot air can be discharged.

[0093] When it is necessary to remove this site, personnel enter the interior of the shed, shut down each box, disconnect the cable contact, remove the air guide component 20 installed on the box, move the box out of the shed, and remove the peripheral panel assembly 17. Flip the additional plate 16 so that it is stacked on the flat plate 14. Fold the stabilizing rod 18 of the side photovoltaic panel 4 back to its original position. Flip the side photovoltaic panel 4 downward and turn it inward to reset. From then on, start folding and compressing the shed, increase the length of the steel wire rope 507 of the first hinge device 505 and the second hinge device 508, and due to the gravity of the flexible photovoltaic panel 11 on the top frame, the main frame and the auxiliary frame automatically have the potential to fold inward, and the height of the shed is reduced.

[0094] Lower to the storage height, lift the wheel brakes of each section of casters 8 to allow them to roll freely. Starting from section M, retract the top and bottom telescopic frames 2 of each unit laterally. During the lateral retraction process, the reel 10 rotates, and a part of the left and right sides of the flexible photovoltaic panel 11 on the roof are rolled back onto the reel 10. Then push each unit back longitudinally, from A4 to A1, from B4 to B1. When each section is retracted to the previous section, be sure to fold the casters 8 back into the grooves set in the bottom side frame 7. The cleaning felt strips 13 fixed under the long side of the top frame scrape off the dust on the lower flexible photovoltaic panel 11 during the retraction of the lower layer of units, and also play a role of buffering protection. Each unit segment is re-nested under section M to obtain the initial storage state.

[0095] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the technical solution of the present invention, and are not intended to limit the specific implementation methods of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A foldable photovoltaic rack, characterized in that: It includes a photovoltaic panel, a bottom frame, a top frame for placing the photovoltaic panel and a support frame, the support frame is adjustable in height, the support frame includes a main frame and an auxiliary frame, and a retractable connecting mechanism is arranged between the main frame and the auxiliary frame; the main frame includes an upper part and a lower part hinged to each other, the upper end of the upper part of the main frame is connected to the side of the top frame, and the lower end of the lower part of the main frame is connected to the side of the bottom frame; the auxiliary frame includes an upper part and a lower part of the auxiliary frame hinged to each other, the upper end of the upper part of the auxiliary frame is hinged to the upper part of the main frame, and the lower end of the lower part of the auxiliary frame is hinged to the lower part of the main frame; one end of the connecting mechanism is arranged at the hinge of the upper and lower parts of the main frame, and the other end of the connecting mechanism is arranged at the hinge of the upper and lower parts of the auxiliary frame.

2. A foldable photovoltaic rack according to claim 1, characterized in that: The main frame also includes a first hinge device, the upper part of the main frame includes an upper support rod, the lower part of the main frame includes a lower support rod, the tail end of the upper support rod and the head end of the lower support rod are respectively hinged on the first hinge device and rotate relative to the first hinge device; the upper support rod is connected to the side of the top frame, and the lower support rod is connected to the side of the bottom frame; The auxiliary frame also includes a second hinge device, the upper part of the auxiliary frame includes an auxiliary upper support rod, and the lower part of the auxiliary frame includes an auxiliary lower support rod. The tail end of the auxiliary upper support rod and the head end of the auxiliary lower support rod are respectively hinged on the second hinge device and rotate relative to the second hinge device; the auxiliary upper support rod is hinged to the upper support rod, and the auxiliary lower support rod is hinged to the lower support rod. A connecting mechanism is provided between the first hinge device and the second hinge device.

3. A foldable photovoltaic rack according to claim 2, characterized in that: It also includes a first connecting member, one end of which is hinged to the upper support rod and the other end is hinged to the auxiliary upper support rod; and / or, it also includes a second connecting member, one end of which is hinged to the lower support rod and the other end is hinged to the auxiliary lower support rod.

4. The foldable photovoltaic rack according to claim 1, characterized in that: The top frame includes a first fixed frame and a first telescopic frame, one end of the first telescopic frame is connected to the first fixed frame, and the other end is connected to the upper part of the main frame, and one end of the photovoltaic panel on the top frame is arranged on the first telescopic frame to follow the telescopic movement of the first telescopic frame; The bottom frame comprises a second fixed frame and a second telescopic frame, the second telescopic frame can adjust the length, one end of the second telescopic frame is connected to the second fixed frame, and the other end is connected to the lower part of the main frame.

5. A foldable photovoltaic rack according to claim 4, characterized in that: The telescopic frame includes a telescopic rod and a side rod. One end of the telescopic rod is connected to one side of the fixed frame, and the other end is connected to the side rod. The telescopic rod can move telescopically relative to the fixed frame, and one end of the photovoltaic panel is arranged on the side rod.

6. A foldable photovoltaic rack according to claim 5, characterized in that: The photovoltaic panel arranged on the top frame is a flexible photovoltaic panel, a winding mechanism is arranged on the side rod, and one end of the flexible photovoltaic panel is arranged on the winding mechanism.

7. A retractable photovoltaic energy storage station, characterized in that: It comprises a main unit, at least one extension unit and an energy storage box; the main unit and the extension unit are both foldable photovoltaic racks as described in any one of claims 1 to 6, the foldable photovoltaic rack comprises two support racks, the two support racks are arranged opposite to each other along a first direction, and an installation space is formed between the top frame and the bottom frame of the foldable photovoltaic rack; At least one extension unit is sequentially provided on both sides of the main unit along a second direction, the second direction is perpendicular to the first direction, the height of the extension unit is lower than the height of the main unit, and the heights of several extension units decrease sequentially from the middle to both sides, and the main unit and the extension unit, as well as the extension units and the extension units are connected by a connecting mechanism, and the connecting mechanism is used to sequentially store the extension units toward the main unit or sequentially release the extension units toward both sides of the main unit; when the extension units are sequentially released toward both sides of the main unit, several installation spaces are connected to form an installation cavity of the photovoltaic energy storage station, and an energy storage box is arranged in the installation cavity, and the energy storage box is used to store the electric energy generated by the photovoltaic panel.

8. The retractable photovoltaic energy storage station according to claim 7, characterized in that: The main unit and the extension unit, and the extension units and the extension units are connected by at least two tie mechanisms, the tie mechanisms include a first tie mechanism and a second tie mechanism, the upper end of the first tie mechanism is arranged on the side of the top frame, and the lower end is connected to the upper part of the main frame, and the upper end of the second tie mechanism is arranged on the side of the bottom frame, and the lower end extends toward the lower side of the bottom frame; The first linkage mechanism includes a top side frame, a slide groove and a slider, wherein the slide groove is arranged on the top side frame of the main unit and each extension unit, and one end of the slider is arranged inside the slide groove, and the other end is slidably arranged in the slide groove of the adjacent extension unit; The second linkage mechanism includes a bottom side frame, a slide groove and a slider. The slide groove is arranged on the bottom side frame of the main unit and each extension unit. One end of the slider is arranged inside the slide groove, and the other end is slidably arranged in the slide groove of the adjacent extension unit.

9. The retractable photovoltaic energy storage station according to claim 8, characterized in that: It also includes side photovoltaic panels, which are arranged on the top side frames.

10. The retractable photovoltaic energy storage station according to claim 7, characterized in that: It also includes a cleaning felt strip, which is arranged on the lower surface of the top frame, and the height of the cleaning felt strip does not exceed the height difference of adjacent units.

Images