A turnover structure for a photovoltaic tracking device and a photovoltaic tracking device

Abstract

The utility model relates to photovoltaic device technical field, concretely relates to a kind of overturning structure and photovoltaic tracking device for photovoltaic tracking device, wherein, a kind of overturning structure for photovoltaic tracking device, comprising: fixed part, for being connected with external support structure, the side surface for being contacted with external support structure in fixed part is first mounting face;First support, one end of first support is hinged on fixed part;Movable part, hinged on one end of fixed part, movable part is used to connect photovoltaic panel, the side surface for being contacted with photovoltaic panel in movable part is second mounting face;Second support, one end of second support is hinged on movable part, first support and second support are hinged between;Push rod, one end of push rod is hinged on fixed part, the other end is hinged on first support and / or second support.The utility model has the advantages that: the versatility of overturning structure is stronger, can drive movable part to rotate larger range relative to fixed part.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic device technology, specifically to a flip structure for a photovoltaic tracking device and a photovoltaic tracking device. Background Technology

[0002] With increasing awareness of environmental protection and growing global demand for clean energy, photovoltaic energy, as a renewable and pollution-free energy source, is receiving more and more attention, and photovoltaic power generation technology is constantly developing.

[0003] Since the power generation of photovoltaic (PV) power is directly proportional to the area of ​​the PV panel receiving sunlight, in order to avoid PV power generation competing with people's production and living space, most existing PV power stations are built in economically underdeveloped and sparsely populated areas, such as deserts and oceans. This, in turn, increases the cost of power transmission. In cities, PV panels are also installed on the rooftops of buildings to generate electricity. However, relative to the overall area of ​​the city, the rooftop area of ​​buildings that can be used to install PV panels to generate electricity is relatively small.

[0004] Therefore, how to enable photovoltaic panels to be installed in more scenarios in order to increase the proportion of clean energy use and reduce carbon emissions is an urgent problem to be solved. Utility Model Content

[0005] The first objective of this invention is to provide a flip structure for a photovoltaic tracking device that enables photovoltaic panels to be installed in more scenarios. The second objective of this invention is to provide a photovoltaic tracking device.

[0006] The present invention is achieved by the following technical solution: As a first aspect of this utility model, a flipping structure for a photovoltaic tracking device includes: A fastener is used to connect with an external support structure, wherein the side of the fastener that contacts the external support structure is a first mounting surface; A first support member, one end of which is hinged to the fixing member; A movable component is hinged to one end of the fixed component. The movable component is used to connect the photovoltaic panel, and the side of the movable component that contacts the photovoltaic panel is a second mounting surface. The second support member has one end hinged to the movable member, and the first support member and the second support member are hinged together. A push rod, one end of which is hinged to the fixing member, and the other end of which is hinged to the first support member and / or the second support member.

[0007] Optionally, the fixing member is provided with a first hinge portion and a second hinge portion in sequence from one end to the other, one end of the second support member is hinged to the first hinge portion, and one end of the push rod is hinged to the second hinge portion.

[0008] Optionally, the fastener has a protrusion on the other side opposite to the first mounting surface for setting the second hinge portion. The protrusion extends horizontally from the fastener toward the side away from the first mounting surface.

[0009] Optionally, the other side of the fastener opposite to the first mounting surface is recessed towards the first mounting surface to form a receiving space for accommodating the push rod, the first support member, and the second support member. And / or, The other side of the movable component opposite to the second mounting surface is recessed into the second mounting surface to form a receiving space for accommodating the fixed component.

[0010] Optionally, the movable component includes a first segment for hinged connection with the fixed component, one end of the first segment having a second segment for connecting the photovoltaic panel, and one end of the second support component being hinged to the first segment or the second segment.

[0011] Optionally, the angle between the first segment and the second segment is an obtuse angle.

[0012] Optionally, the second segment extends along its length.

[0013] Optionally, the distance from the hinge axis between the first support member and the fixed member to the hinge axis between the fixed member and the movable member, plus the distance from the hinge axis between the fixed member and the movable member to the hinge axis between the second support member and the movable member, is the first length. The distance from the hinge axis between the first support member and the fixed member to the hinge axis between the first support member and the second support member, plus the distance from the hinge axis between the fixed member and the movable member to the hinge axis between the second support member and the movable member, constitutes the second length. The first length is less than the second length.

[0014] As a second aspect of this utility model, a photovoltaic tracking device includes: a support structure and at least one photovoltaic panel; It also includes the flipping structure as described above, with each photovoltaic panel having at least one set of the flipping structure, the fixing member being connected to the support structure, and the movable member being connected to the photovoltaic panel.

[0015] Optionally, the number of photovoltaic panels is two, and the two photovoltaic panels are respectively disposed on both sides of the supporting structure.

[0016] The advantages of this utility model are: strong versatility, applicable to more scenarios; shortened total effective stroke of the push rod, reducing cost; and closer proximity of the photovoltaic panel connected to the moving part to the support structure, improving the stability of the photovoltaic tracking device and reducing space occupation.

[0017] First, by connecting to the external support structure through the fixing component, the flip structure proposed in this utility model can be connected to various scenarios such as walls, balconies, roofs, and utility poles. When the photovoltaic panel connected to the movable component needs to work, the movable component only needs to be driven by the push rod, so that the light-receiving surface of the photovoltaic panel is as perpendicular to the sunlight as possible. When people's production and daily life may interfere with the photovoltaic panel connected to the movable component in its working state, the photovoltaic panel can be driven by the push rod to keep the photovoltaic panel as vertical as possible, avoiding interference with people's production and daily life. Therefore, the flip structure proposed in this utility model can be applied to more scenarios and has strong versatility.

[0018] Secondly, by hinged connection between the fixed and movable parts, and the first support on the fixed part and the second support rod on the movable part, the quadrilateral formed by the fixed part, movable part, first support rod and second support rod is deformed by the push rod, thereby realizing the rotation of the movable part relative to the fixed part. Especially when the push rod is directly connected to the first support rod, when the push rod drives the first support rod to rotate around the fixed part by a certain angle, under the action of the first support rod and the second support rod, the angle of rotation of the movable part relative to the fixed part can be greater than the angle of rotation of the first support rod around the fixed part. That is, when the maximum angle of rotation of the photovoltaic panel is the same, the total effective stroke of the push rod is shortened, thereby reducing the cost.

[0019] Third, the movable component of this utility model connects to the photovoltaic panel via the second mounting surface. Different lengths of movable components can be selected based on the size of the connected photovoltaic panel. When using the photovoltaic tracking device of this utility model, the back of the photovoltaic panel can be connected to the movable component, bringing the center of gravity of the photovoltaic panel closer to the movable component. In traditional tracking photovoltaic devices or foldable photovoltaic tracking devices, the photovoltaic panel needs to be rotated, and the connection method of the photovoltaic panel is usually that the side of the photovoltaic panel is connected to the corresponding bracket. Therefore, compared with the traditional connection method, the connection method in this utility model significantly shortens the distance between the location used for connection to the bracket and the center of gravity of the photovoltaic panel, enhancing the stability of the photovoltaic tracking device.

[0020] Fourth, the other side of the fixing member of this utility model is recessed towards the first mounting surface to form a receiving space for accommodating the push rod, the first support member and the second support member. The other side of the movable member is recessed towards the second mounting surface to form a receiving space for accommodating the fixing member. When the movable member rotates relative to the fixing member and folds towards the fixing member, that is, when the photovoltaic tracking device is in the folded state, the push rod, the first support member and the second support member can be folded into the receiving space, thereby making the photovoltaic tracking device using the flip structure proposed in this utility model occupy less space overall. Attached Figure Description

[0021] The following accompanying drawings describe in detail the exemplary embodiments disclosed in this application. The same reference numerals denote similar structures in several views of the drawings. Those skilled in the art will understand that these embodiments are non-limiting and exemplary, and the drawings are for illustrative purposes only and are not intended to limit the scope of this application. Other embodiments may similarly fulfill the intent of this application. It should be understood that the drawings are not drawn to scale. Wherein: Figure 1 This is a schematic diagram of the flip structure from a first-view perspective in an embodiment of this application; Figure 2 This is a schematic diagram of the flipped structure from a second perspective in an embodiment of this application; Figure 3 This is a schematic diagram of the first state of the photovoltaic tracking device in the embodiments of this application; Figure 4 This is a schematic diagram of the second state of the photovoltaic tracking device in the embodiments of this application; Figure 5 This is a schematic diagram of the third state of the photovoltaic tracking device in the embodiments of this application.

[0022] The markings in the diagram are as follows: 1. Flip-over structure; 11. Fixing component; 111. Protrusion; 112. First mounting surface; 113. First receiving space; 12. Movable component; 121. First section; 122. Second section; 123. Second receiving space; 124. Second mounting surface; 13. First support component; 14. Second support component; 15. Push rod; 2. Supporting structure; 3. Photovoltaic panels. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the described embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It is understood that, without conflict, some technical means of the various embodiments described herein can be substituted for or combined with each other.

[0024] In the description of this application, the terms "first," "second," etc., are used only to distinguish the described objects and have no sequential or technical meaning. Therefore, objects specified with "first," "second," etc., may explicitly or implicitly include one or more of those objects. Furthermore, the words "one" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one, while "multiple" indicates at least two.

[0025] In the description of this application, the terms "connection," "abutment," "installation," "fixation," "contact," "support," and "reception," etc., should be interpreted broadly. For example, "connection" can be a split connection or a one-piece connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a non-detachable connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can also refer to the internal communication of two components or the interaction between two components. As another example, "abutment" can be a direct abutment or an indirect abutment through an intermediate medium. Furthermore, "reception" does not necessarily mean complete containment of the entire component; this concept also includes the containment of a portion that protrudes externally. Those skilled in the art can understand the specific meaning of the aforementioned terms in this application according to the specific circumstances.

[0026] In the description of this application, if there are terms such as "A is connected to B in a rotatable manner", it means that A and B are directly or indirectly connected, and A is able to rotate relative to B.

[0027] In the description of this application, references to "one embodiment" or "some embodiments" mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0028] The first aspect of this embodiment is as follows: Figures 1 to 4As shown, a flip structure 1 for a photovoltaic tracking device includes: The fastener 11 is used to connect with the external support structure 2, and the side of the fastener 11 that is in contact with the external support structure 2 is the first mounting surface 112; A first support member 13, one end of which is hinged to the fixing member 11; The movable part 12 is hinged to one end of the fixed part 11. The movable part 12 is used to connect the photovoltaic panel 3. The side of the movable part 12 that is in contact with the photovoltaic panel 3 is the second mounting surface 124. The second support member 14 has one end hinged to the movable member 12, and the first support member 13 and the second support member 14 are hinged together. Push rod 15, one end of which is hinged to the fixing member 11, and the other end of which is hinged to the first support member 13 and / or the second support member 14.

[0029] It should be noted that, in this embodiment, the push rod 15 refers to a mechanical device that can adjust its overall length along its length direction under the action of power. Mechanical devices that can be used as push rod 15 include: pneumatic push rod 15, electric push rod 15, or hydraulic push rod 15, etc.

[0030] It should be noted that in this embodiment, the fastener 11 is used to connect with the external support structure 2, which can be a wall, balcony, roof, or utility pole, etc. Therefore, the flip structure 1 can be connected to the external support structure 2 such as the wall, balcony, roof, or utility pole through the fastener 11.

[0031] It should be noted that, in this embodiment, as Figures 1 to 4 As shown, the fixed member 11, the movable member 12, the first support member 13 and the second support member 14 form a quadrilateral. The fixed member 11 is connected to the external support structure 2. In order to drive the movable member 12 to rotate relative to the fixed member 11, the quadrilateral needs to be deformed. Therefore, a push rod 15 is added. The other end of the push rod 15 is hinged to the first support member 13 and / or the second support member 14. The push rod 15 drives the quadrilateral to deform, thereby driving the movable member 12 to rotate relative to the fixed member 11.

[0032] Furthermore, in this embodiment, the other end of the push rod 15 being hinged to the first support member 13 and / or the second support member 14 means that the other end of the push rod 15 can also be hinged to the first support member 13, or to the second support member 14, or at the hinge point of the first support member 13 and the second support member 14.

[0033] It should be noted that since the push rod 15 does not directly act on the movable part 12, but drives the movable part 12 to rotate with the assistance of the first support 13 and the second support 14, the deformation of the movable part 12 relative to the fixed part 11 can be increased under the action of the first support 13 and the second support 14. Therefore, when the drive stroke and drive range of the push rod 15 reach the limit position, the movable part 12 can be driven to rotate a larger range relative to the fixed part 11 under the action of the first support 13 and the second support 14, so that the photovoltaic panel 3 connected to the movable part 12 can track the sunlight more comprehensively and ensure the power generation efficiency of the photovoltaic tracking device. Meanwhile, since the deformation of the moving part 12 relative to the fixed part 11 can be increased by the action of the first support member 13 and the second support member 14, the driving stroke of the push rod 15 is shortened when the photovoltaic panel 3 rotates by the same angle, thereby directly reducing the requirements on the push rod 15.

[0034] It should be noted that, in this embodiment, in order to increase the stability of the first support member 13 and the second support member 14, two first support members 13 and two second support members 14 can be provided. Both first support members 13 are hinged to the fixed member 11, and both second support members 14 are hinged to the movable member 12. The other end of the push rod 15 is provided with a hinge shaft, and both ends of the hinge shaft are simultaneously hinged to one first support member 13 and one second support member 14.

[0035] It should be noted that, in this embodiment, to ensure that the deformation of the movable part 12 relative to the fixed part 11 can be increased under the action of the first support member 13 and the second support member 14, the distance from the hinge axis of the first support member 13 and the fixed part 11 to the hinge axis of the fixed part 11 and the movable part 12 plus the distance from the hinge axis of the fixed part 11 and the movable part 12 to the hinge axis of the second support member 14 and the movable part 12 is the first length; the distance from the hinge axis of the first support member 13 and the fixed part 11 to the hinge axis of the first support member 13 and the second support member 14 plus the distance from the hinge axis of the fixed part 11 and the movable part 12 to the hinge axis of the second support member 14 and the movable part 12 is the second length; wherein the first length is less than the second length.

[0036] It should be noted that the first length being less than the second length can specifically include the following situations: In the first case, the distance between the hinge axis of the first support member 13 on the fixed member 11 and the hinge axis between the fixed member 11 and the movable member 12 is less than the distance between the hinge axis of the first support member 13 on the fixed member 11 and the hinge axis between the first support member 13 and the second support member 14.

[0037] In the second case, the distance between the hinge axis of the second support member 14 on the fixed member 11 and the hinge axis between the fixed member 11 and the movable member 12 is less than the distance between the hinge axis of the second support member 14 on the fixed member 11 and the hinge axis between the first support member 13 and the second support member 14.

[0038] Thirdly, the distance between the hinge axis of the first support member 13 on the fixed member 11 and the hinge axis between the fixed member 11 and the movable member 12 is less than the distance between the hinge axis of the first support member 13 on the fixed member 11 and the hinge axis between the first support member 13 and the second support member 14. At the same time, the distance between the hinge axis of the second support member 14 on the fixed member 11 and the hinge axis between the fixed member 11 and the movable member 12 is less than the distance between the hinge axis of the second support member 14 on the fixed member 11 and the hinge axis between the first support member 13 and the second support member 14.

[0039] It should be noted that, in this embodiment, in order for the push rod 15 to move at the hinge joint between the first support member 13 and the second support member 14, the second support member 14 and the push rod 15 need to be connected at different positions on the fixing member 11, and the connection method is as follows: like Figures 1 to 4 As shown, the fixing member 11 has a first hinge portion and a second hinge portion sequentially provided from one end to the other end. One end of the second support member 14 is hinged to the first hinge portion, and one end of the push rod 15 is hinged to the second hinge portion; or, one end of the push rod 15 is hinged to the first hinge portion, and one end of the second support member 14 is hinged to the second hinge portion.

[0040] It should be noted that the hinge portion mentioned above and the hinge in this embodiment can be implemented by any means such as a hinge, a pin or a hinge shaft, or it can be a hinge protrusion 111 formed by itself.

[0041] Furthermore, in this embodiment, when one end of the push rod 15 is hinged to the second hinge axis, the push rod 15 is driven, causing the hinge joint between the first support member 13 and the second support member 14 to move. During this process, the push rod 15 will rotate around the second hinge axis. To increase the rotation range of the push rod 15 and avoid the fixing member 11 restricting the rotation of the push rod 15, such as... Figures 1 to 4 As shown, a protrusion 111 for setting the second hinge portion is provided on the fixing member 11. The protrusion 111 extends horizontally from the fixing member 11 towards the moving member 12, that is, towards the side away from the first mounting surface 112.

[0042] It should be noted that, in this embodiment, in order for the movable part 12 of the folding structure to rotate relative to the fixed part 11 and fold towards the fixed part 11, that is, when the photovoltaic tracking device is in the folded state, there is a receiving space between the movable part 12 and the fixed part 11 to accommodate the push rod 15, the first support 13 and the second support 14. The arrangement of the receiving space includes, but is not limited to, the following: In the first embodiment, the other side of the fixing member 11 opposite to the first mounting surface 112 is recessed towards the first mounting surface 112 to form a first receiving space 113 for accommodating the push rod 15, the first support member 13, and the second support member 14; when the movable member 12 is folded towards the fixing member 11, the push rod 15, the first support member 13, and the second support member 14 are folded into the first receiving space 113 within the fixing member 11.

[0043] In the second embodiment, the other side of the movable member 12 opposite to the second mounting surface 124 is recessed into the second mounting surface 124 to form a second receiving space 123 for accommodating the fixed member 11; when the movable member 12 is folded toward the fixed member 11, the push rod 15, the first support member 13 and the second support member 14 are folded between the fixed member 11 and the movable member 12, and the receiving space on the movable member 12 simultaneously encloses the push rod 15, the first support member 13 and the second support member 14, as well as the other side of the fixed member 11.

[0044] In the third configuration, the other side of the fixing member 11 opposite to the first mounting surface 112 is recessed towards the first mounting surface 112 to form a first receiving space 113, and the other side of the movable member 12 opposite to the second mounting surface 124 is recessed towards the second mounting surface 124 to form a second receiving space 123. When the movable member 12 is folded towards the fixing member 11, the push rod 15, the first support member 13 and the second support member 14 are folded into the first receiving space 113, while the second receiving space 123 covers the other side of the fixing member 11.

[0045] By using the above methods, when not generating electricity or in severe weather, the photovoltaic tracking device is in a folded state, which can prevent damage caused by the push rod 15, the first support 13 and the second support 14 coming into contact with the outside world, thereby increasing the service life of the folding structure.

[0046] Furthermore, in this embodiment, to ensure that the folding structure is in the folded state and that the accommodating space is large enough to accommodate the push rod 15, the first support member 13, and the second support member 14, as follows: Figures 1 to 4 As shown, the movable member 12 includes a first segment 121, which is hinged to one end of the second support member 14. One end of the first segment 121 is provided with a second segment 122 for mounting the photovoltaic panel 3. The included angle between the first segment 121 and the second segment 122 is an obtuse angle.

[0047] Furthermore, in this embodiment, the movable component 12 is used to connect the photovoltaic panel 3, and the second segment 122 extends along its length. Therefore, depending on the size of the photovoltaic panel 3 to be connected, different lengths of movable components 12 are selected. When connecting the photovoltaic panel 3, the back of the photovoltaic panel 3 can be connected to the movable component 12, so that the center of gravity of the photovoltaic panel 3 is closer to the movable component 12. In traditional tracking photovoltaic devices or foldable photovoltaic tracking devices, it is necessary to drive the photovoltaic panel 3 to rotate. The connection method of the photovoltaic panel 3 is usually that the side of the photovoltaic panel 3 is connected to the corresponding bracket. Therefore, compared with the traditional connection method, the connection method in this embodiment significantly shortens the distance between the position used to connect to the bracket and the center of gravity of the photovoltaic panel 3, enhancing the stability of the photovoltaic tracking device.

[0048] The second aspect of this embodiment is as follows: Figures 2 to 4 As shown, a photovoltaic tracking device includes: a support structure 2 and at least one photovoltaic panel 3; It also includes the flip structure 1 as described above, with each photovoltaic panel 3 having at least one set of the flip structure 1, the fixing member 11 being connected to the support structure 2, and the movable member 12 being connected to the photovoltaic panel 3.

[0049] It should be noted that, in this embodiment, in order to increase the utilization rate of the support structure 2 in the photovoltaic tracking device, the two photovoltaic panels 3 are respectively arranged on both sides of the support structure 2.

[0050] It should be noted that the photovoltaic tracking device in this embodiment has three states: In the first state, the photovoltaic tracking device generates photovoltaic power by using the flipping structure 1 to adjust the tilt angle of the photovoltaic panel 3 so that the light-receiving surface of the photovoltaic panel 3 faces the light. In the second state, during photovoltaic power generation, the flipping structure 1 drives the photovoltaic panels 3 on both sides to remain in a horizontal state; In the third state, during idle periods when photovoltaic power generation is not being performed, the flipping structure 1 causes both photovoltaic panels 3 on both sides to fold downwards until the two photovoltaic panels 3 are parallel and as close as possible to the supporting structure 2. In this state, the windward area of ​​the photovoltaic panels 3 can be reduced, thereby improving the stability of the photovoltaic tracking device.

[0051] The advantages of this embodiment are: it makes the flip structure 1 more versatile, can drive the movable part 12 to rotate a larger range relative to the fixed part 11, reduces the requirements on the push rod 15, increases the service life of the flip structure 1, and at the same time improves the power generation efficiency of the photovoltaic tracking device and enhances the stability of the photovoltaic tracking device.

[0052] First, in this embodiment, the first mounting surface 112 of the fastener 11 is attached to the external support structure 2, and the flip structure 1 is connected to the external support structure 2 such as a wall, balcony, roof and utility pole through the fastener 11. The photovoltaic panel 3 is connected through the movable part 12, so that the photovoltaic panel 3 can achieve photovoltaic tracking under the action of the flip structure 1. Under the action of this structure, the photovoltaic panel 3 can be conveniently and quickly connected to more scenarios to drive the photovoltaic panel 3 to perform photovoltaic tracking. The flip structure 1 has stronger versatility.

[0053] Second, in this embodiment, the fixed member 11 is hinged to the movable member 12, and the first support member 13 on the fixed member 11 is also hinged to the second support rod on the movable member 12. The quadrilateral formed by the fixed member 11, the movable member 12, the first support member 13, and the second support member 14 is driven by the push rod 15, causing the quadrilateral formed by the fixed member 11, the movable member 12, the first support member 13, and the second support member 14 to deform, thereby causing the movable member 12 to rotate relative to the fixed member 11. Since the push rod 15 does not directly act on the movable member 12, but rather on the second support member 12, the quadrilateral formed by the fixed member 11, the movable member 12, the first support member 13, and the second support member 14 is driven by the push rod 15. With the assistance of the first support member 13 and the second support member 14, the movable member 12 is driven to rotate. Under the action of the first support member 13 and the second support member 14, the deformation of the movable member 12 relative to the fixed member 11 driven by the push rod 15 can be increased. Therefore, when the drive stroke and drive range of the push rod 15 reach the limit position, under the action of the first support member 13 and the second support member 14, the movable member 12 can be driven to rotate a larger range relative to the fixed member 11, so that the photovoltaic panel 3 connected to the movable member 12 can track the sunlight more comprehensively and ensure the power generation efficiency of the photovoltaic tracking device. Meanwhile, since the deformation of the moving part 12 relative to the fixed part 11 can be increased by the action of the first support member 13 and the second support member 14, the driving stroke of the push rod 15 is shortened when the photovoltaic panel 3 rotates by the same angle, thereby directly reducing the requirements on the push rod 15.

[0054] Third, in this embodiment, the movable component 12 is connected to the photovoltaic panel 3 via the second mounting surface 124. Different lengths of the movable component 12 can be selected according to the size of the connected photovoltaic panel 3. When using the photovoltaic tracking device of this embodiment, the back of the photovoltaic panel 3 can be connected to the movable component 12, so that the center of gravity of the photovoltaic panel 3 is closer to the movable component 12. In traditional tracking photovoltaic devices or foldable photovoltaic tracking devices, it is necessary to drive the photovoltaic panel 3 to rotate. The connection method of the photovoltaic panel 3 is usually that the side of the photovoltaic panel 3 is connected to the corresponding bracket. Therefore, compared with the traditional connection method, the connection method in this embodiment significantly shortens the distance between the position used to connect to the bracket and the center of gravity of the photovoltaic panel 3, thereby enhancing the stability of the photovoltaic tracking device.

[0055] Fourth, in this embodiment, the other side of the fixing member 11 is recessed toward the first mounting surface 112 to form a receiving space for accommodating the push rod 15, the first support member 13, and the second support member 14. The other side of the movable member 12 is recessed toward the second mounting surface 124 to form a receiving space for accommodating the fixing member 11. When the movable member 12 rotates relative to the fixing member 11 and folds toward the fixing member 11, that is, when the photovoltaic tracking device is in the folded state, the push rod 15, the first support member 13, and the second support member 14 can be folded into the receiving space. When not generating electricity or in bad weather, the photovoltaic tracking device is in the folded state, which can avoid damage caused by the push rod 15, the first support member 13, and the second support member 14 coming into contact with the outside world, thereby increasing the working life of the folding structure.

Claims

1. A flipping structure for a photovoltaic tracking device, characterized in that, include: A fastener is used to connect with an external support structure, wherein the side of the fastener that contacts the external support structure is a first mounting surface; A first support member, one end of which is hinged to the fixing member; A movable component is hinged to one end of the fixed component. The movable component is used to connect the photovoltaic panel, and the side of the movable component that contacts the photovoltaic panel is a second mounting surface. The second support member has one end hinged to the movable member, and the first support member and the second support member are hinged together. A push rod, one end of which is hinged to the fixing member, and the other end of which is hinged to the first support member and / or the second support member.

2. The flipping structure as described in claim 1, characterized in that, The fixing member is provided with a first hinge portion and a second hinge portion in sequence from one end to the other. One end of the second support member is hinged to the first hinge portion, and one end of the push rod is hinged to the second hinge portion.

3. The flipping structure as described in claim 2, characterized in that, The fastener has a protrusion on the side opposite to the first mounting surface for setting the second hinge portion. The protrusion extends horizontally from the fastener toward the side away from the first mounting surface.

4. The flipping structure as described in claim 1, characterized in that, The other side of the fastener opposite to the first mounting surface is recessed towards the first mounting surface to form a receiving space for accommodating the push rod, the first support member, and the second support member. And / or, The other side of the movable component opposite to the second mounting surface is recessed into the second mounting surface to form a receiving space for accommodating the fixed component.

5. The flipping structure as described in claim 1, characterized in that, The movable component includes a first segment for hinged connection with the fixed component, and a second segment for connecting a photovoltaic panel is provided at one end of the first segment.

6. The flipping structure as described in claim 5, characterized in that, The angle between the first segment and the second segment is an obtuse angle.

7. The flipping structure as described in claim 6, characterized in that, The second segment extends along its length.

8. The flipping structure as described in any one of claims 1-7, characterized in that, The distance from the hinge axis between the first support member and the fixed member to the hinge axis between the fixed member and the movable member, plus the distance from the hinge axis between the fixed member and the movable member to the hinge axis between the second support member and the movable member, constitutes the first length. The distance from the hinge axis between the first support member and the fixed member to the hinge axis between the first support member and the second support member, plus the distance from the hinge axis between the fixed member and the movable member to the hinge axis between the second support member and the movable member, constitutes the second length. The first length is less than the second length.

9. A photovoltaic tracking device, characterized in that, include: The flip structure as described in any one of claims 1-8; A supporting structure, wherein the fastener is connected to the supporting structure; as well as, A photovoltaic panel connected to the movable component.

10. The photovoltaic tracking device as described in claim 9, characterized in that, The number of the flipping structure is at least two sets, and multiple sets of the flipping structure are respectively arranged on both sides of the support structure; At least one photovoltaic panel is connected to the movable component of the flipping structure on either side of the support structure.

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