Floating body unit, floating body platform and floating photovoltaic system

Abstract

Disclosed in the present invention are a floating body unit, a floating body platform and a floating photovoltaic system. The floating body unit comprises a floating-body main body, first installation positions and second installation positions, wherein the floating-body main body has a long-end direction and a short-end direction; the first installation positions are disposed on both sides of the floating-body main body in the short-end direction and close to the middle position of the floating-body main body in the long-end direction; the second installation positions are disposed on both sides of the floating-body main body in the short-end direction and close to the positions of two ends of the floating-body main body in the long-end direction; the first installation positions are configured to fit and be connected to a first installation bracket; and the second installation positions are configured to fit and be connected to a second installation bracket. By means of the rational arrangements of the first installation positions and the second installation positions, the floating body unit has the function of carrying a driving mechanism configured to drive a photovoltaic module to track light. In addition, installation requirements of various components of the floating body unit can be better met.

Description

Floating unit, floating platform and water photovoltaic system

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 6, 2023, with application number 202322425687.0 and invention name “A floating unit, a floating platform and an underwater photovoltaic system”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the technical field of water photovoltaic technology, and more particularly to a floating unit, a floating platform and a water photovoltaic system. Background Art

[0003] According to the current application of surface photovoltaic products, most of them currently use fixed-angle brackets to install photovoltaic modules, resulting in relatively low power generation efficiency of photovoltaic modules. In order to improve the power generation efficiency of photovoltaic modules, a common method is to adjust the orientation of the surface photovoltaic array so that the photovoltaic array tracks the sun's radiation, thereby achieving an increase in power generation and power generation efficiency.

[0004] Although ground-based photovoltaic systems that track sunlight are already available on the market, their drive and mounting structures are only suitable for terrestrial environments and are not applicable to water-based photovoltaic systems. This is because many components of water-based photovoltaic systems need to be installed on floating units. Floating units not only need to meet requirements such as connection between floating units, operation and maintenance, and buoyancy, but also need to meet the installation requirements of many components. The structural form of the floating units of the water-based photovoltaic systems currently on the market cannot meet the requirements of water-based photovoltaic systems equipped with a drive mechanism to drive photovoltaic modules to track sunlight.

[0005] In summary, how to enable the floating unit of the water photovoltaic system to have the function of carrying a driving mechanism for driving the photovoltaic components to track sunlight has become a technical problem that needs to be solved urgently by those skilled in the art.

[0006] Summary of the Invention

[0007] In view of this, the present invention provides a floating unit, a floating platform and an aquatic photovoltaic system, so that the floating unit of the aquatic photovoltaic system has the function of carrying a driving mechanism for driving the photovoltaic components to track sunlight.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A floating unit, comprising:

[0010] The floating body has a long end direction and a short end direction;

[0011] The first installation position is arranged on both sides of the floating body along the short end direction and close to the middle position of the floating body along the long end direction;

[0012] The second installation position is provided on both sides of the floating body along the short end direction and is arranged close to the two end positions of the floating body in the long end direction;

[0013] The first mounting position is used for adapting and connecting with a first mounting bracket, and the second mounting position is used for adapting and connecting with a second mounting bracket.

[0014] Optionally, the first mounting bracket is used to mount a rotating shaft, the rotating shaft is rotatably disposed on the first mounting bracket, and a photovoltaic module is mounted on the rotating shaft, and the second mounting bracket is used to mount a driving mechanism, and the driving mechanism is used to drive the rotating shaft to rotate;

[0015] Alternatively, the first mounting bracket and / or the second mounting bracket are used to install electrical equipment of the water photovoltaic system.

[0016] Optionally, both the first installation position and the second installation position are installation holes opened on a rigid structure formed by the inner concave portion of the float body.

[0017] Optionally, a first lug connection portion is provided at one end of the float body along the longitudinal direction, and a second lug connection portion is provided at the other end of the float body along the longitudinal direction;

[0018] The first embracing lug connection portion and the second embracing lug connection portion have a preset height difference, so that when the first embracing lug connection portion of one floating unit is overlapped and connected with the second embracing lug connection portion of another floating unit along the long end direction, the top surfaces of the two overlapping floating units are flush.

[0019] Optionally, the outer wall of the floating body has a first convex structure along a side of the first lug connection portion facing away from the overlapping mating surface thereof; and / or the outer wall of the floating body has a second convex structure along a side of the second lug connection portion facing away from the overlapping mating surface thereof;

[0020] Wherein, the first convex extension structure and / or the second convex extension structure are integrally formed with the floating body.

[0021] Optionally, a first recessed structure is formed on the outer wall of the float body along the overlapping surface of the first lug connection portion toward the inner side of the float body along the long end direction; and / or a second recessed structure is formed on the outer wall of the float body along the overlapping surface of the second lug connection portion toward the inner side of the float body along the long end direction.

[0022] Optionally, one or more connection holes are provided on the first lug connection portion; and / or one or more connection holes are provided on the second lug connection portion.

[0023] Optionally, both end sides of the floating body along the long end direction are provided with operation and maintenance cutouts which are concave along the short end direction.

[0024] Compared with the background technology introduction, the above-mentioned floating unit includes a floating body, a first mounting position and a second mounting position, wherein the floating body has a long end direction and a short end direction; the first mounting position is arranged on both sides of the floating body along the short end direction and is close to the middle position of the floating body in the long end direction; the second mounting position is arranged on both sides of the floating body along the short end direction and is close to the two end positions of the floating body in the long end direction; and the first mounting position is used to adapt and connect with the first mounting bracket, and the second mounting position is used to adapt and connect with the second mounting bracket. In actual application, the floating unit is designed with a first mounting position and a second mounting position on the floating body, and the first mounting position is adapted to the first mounting bracket, and the second mounting position is adapted to the second mounting bracket. The first mounting bracket can be configured as a mounting bracket for installing a rotating shaft, and the rotating shaft is rotatably mounted on the first mounting bracket, and the photovoltaic component is mounted on the rotating shaft. The first mounting position is designed on both sides of the floating body along the short end direction and is arranged close to the middle position of the floating body in the long end direction. Therefore, not only can the installation of the mounting bracket of the rotating shaft be met, but the photovoltaic component is also in the middle position of the floating body, which can ensure the stability of the overall support of the photovoltaic component. The second mounting bracket can be configured as a driving mechanism for installing the rotating shaft. Since the second mounting position is designed on both sides of the floating body along the short end direction and is arranged close to the two end positions of the floating body in the long end direction, it can avoid the photovoltaic component and does not affect the installation of the photovoltaic component. The driving mechanism can drive the rotating shaft to rotate and drive the photovoltaic component to track sunlight. Therefore, through the rational arrangement of the first and second mounting positions, the floating unit is equipped with a drive mechanism for driving the photovoltaic panels to track sunlight. Furthermore, when the floating unit is used on the edge of a floating platform, the first and second mounting brackets can also be configured as mounting brackets for electrical components of the photovoltaic system, such as a combiner box, to better accommodate the installation requirements of various components of the floating unit.

[0025] The present invention also provides a floating platform comprising a plurality of main floating bodies and equipment floating bodies connected in parallel, wherein the main floating bodies and / or the equipment floating bodies are configured as floating units as described in any of the above-mentioned embodiments. Since the floating units have the above-mentioned technical effects, the floating platform incorporating such floating units should also have corresponding technical effects, which will not be further elaborated here.

[0026] The present invention also provides another floating platform, comprising at least two interconnected square array floats, each of the square array floats comprising a floating unit connected in pairs, the floating unit being the floating unit described in any of the above schemes, the two floating units overlapped along the long end direction being a first floating unit and a second floating unit respectively, the first lug connection portion of the first floating unit overlaps the second lug connection portion of the second floating unit to form overlapping connection holes, the overlapping connection holes comprising a first connection hole and a second connection hole; wherein the first connection hole is used to connect to an adjacent first connection hole on an adjacent square array float along the short end direction through a first connecting member; the second connection hole is used to connect to an adjacent second connection hole on the same square array float along the short end direction through a second connecting member.

[0027] In addition, the present invention also provides a water photovoltaic system including a floating platform, wherein the floating platform is the floating platform described in the above solution. Since the floating platform has the aforementioned technical effects, the water photovoltaic system having the floating platform should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] FIG1 is a schematic diagram of a top view of a floating unit provided in an embodiment of the present invention;

[0030] FIG2 is a schematic diagram of the main structure of a floating unit provided in an embodiment of the present invention;

[0031] FIG3 is a bottom view schematic diagram of the floating unit provided in an embodiment of the present invention;

[0032] 4 is a schematic structural diagram of a first mounting position and a second mounting position of a floating unit provided by an embodiment of the present invention, wherein a first mounting bracket and a second mounting bracket are installed respectively;

[0033] FIG5 is a schematic structural diagram of two floating bodies provided by an embodiment of the present invention that are overlapped and connected along the long end direction;

[0034] FIG6 is a schematic structural diagram of an array of floating bodies provided by an embodiment of the present invention connected by a first connecting member and a second connecting member;

[0035] FIG. 7 is a schematic structural diagram of two adjacent array floats connected by a second connecting member according to an embodiment of the present invention.

[0036] FIG8 is a schematic structural diagram of a floating unit provided by an embodiment of the present invention applied to a photovoltaic power generation system.

[0037] Among them, in Figures 1 to 8: the floating body 1, the first mounting position 11, the second mounting position 12; the first ear connection part 2, the first convex structure 21, the first concave structure 22; the second ear connection part 3, the second convex structure 31, the second concave structure 32; the first connecting member 4; the second connecting member 5; the operation and maintenance cutout 6; the main floating body 7; the equipment floating body 8; the photovoltaic module 9; the long end direction A; the short end direction B; the rotating shaft 100, the driving mechanism 101, the first mounting bracket 102, the second mounting bracket 103; the first array floating body 200, the second array floating body 201. DETAILED DESCRIPTION

[0038] The core of the present invention is to provide a floating unit, a floating platform and an aquatic photovoltaic system, so that the floating unit of the aquatic photovoltaic system has the function of carrying a driving mechanism for driving the photovoltaic components to track sunlight.

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Referring to Figures 1 to 3, the present invention provides a floating unit, including a floating body 1, a first mounting position 11 and a second mounting position 12, wherein the floating body 1 has a long end direction A and a short end direction B. It should be noted that the long end direction A specifically refers to the length direction of the floating body 1, and the short end direction B specifically refers to the width direction of the floating body 1; the first mounting position 11 is arranged on both sides of the floating body 1 along the short end direction B and is close to the middle position of the floating body A in the long end direction A; the second mounting position 12 is arranged on both sides of the floating body 1 along the short end direction B and is close to the two end positions of the floating body 1 in the long end direction A; in addition, the first mounting position 11 is used to adapt and connect with the first mounting bracket 102, and the second mounting position 12 is used to adapt and connect with the second mounting bracket 103.

[0041] In actual application, the floating unit, as shown in Figures 1 to 4, is designed with a first mounting position 11 and a second mounting position 12 on the floating body 1, and the first mounting position 11 is adapted to the first mounting bracket 102, and the second mounting position 12 is adapted to the second mounting bracket 103. The first mounting bracket 11 can be configured as a mounting bracket for mounting the rotating shaft 100, and the rotating shaft 100 is rotatably mounted on the first mounting bracket 102, and the photovoltaic module 9 is mounted on the rotating shaft 100, and the first mounting position 11 is designed on both sides of the floating body 1 along the short end direction B and close to the middle position of the floating body 1 in the long end direction A. The arrangement not only satisfies the need for mounting the mounting bracket for the rotating shaft 100, but also positions the photovoltaic assembly 9 in the center of the float body 1, ensuring the overall stability of the support for the photovoltaic assembly 9. The second mounting bracket 103 can be configured to house the drive mechanism 101 that drives the rotating shaft 100. Since the second mounting positions 12 are located on either side of the float body 1 along the short-end direction B and near both ends of the float body 1 along the long-end direction A, they avoid the photovoltaic assembly 9, thus not affecting its installation. Furthermore, the drive mechanism 101 can drive the rotating shaft 100 to rotate and drive the photovoltaic assembly 9 to track sunlight. Therefore, through the rational arrangement of the first mounting position 11 and the second mounting position 12, the float unit is equipped with a drive mechanism for driving the photovoltaic assembly to track sunlight. Furthermore, when the float unit is used on the frame of a floating platform, the first mounting bracket 102 and the second mounting bracket 103 can also be configured as mounting brackets for electrical components of the photovoltaic system, such as a combiner box, to better accommodate the installation requirements of various components of the float unit.

[0042] It should be noted that those skilled in the art should be able to understand that multiple floating units can be connected to form a floating platform, and the floating platform is used to carry a photovoltaic power generation system. In actual application, according to the different layout positions of the floating units, the above-mentioned first mounting bracket 102 and the second mounting bracket 103 can be specifically installed with different components. For example, the first mounting bracket 102 can be used to install the rotating shaft 100, which is rotatably arranged on the first mounting bracket 102, and a photovoltaic component 9 is installed on the rotating shaft 100. The second mounting bracket 103 is used to install the driving mechanism 101, and the driving mechanism 101 is used to drive the rotating shaft 100 to rotate. By driving the rotating shaft 100 to rotate by the driving mechanism 101, the photovoltaic component 9 on the rotating shaft 100 can be driven to adjust the angle. For the specific structural form of the driving mechanism 100, it can be but not limited to a linear push rod mechanism driving a multi-link mechanism to drive the rotating shaft 100 to rotate, or a reducer driving the rotating shaft 100 to rotate through a transmission mechanism, so that the photovoltaic component 9 can track sunlight. This is the basic structural form of a long-row flat single-axis to achieve sunlight tracking, and will not be described in more detail here. For another example, the first mounting bracket 102 and / or the second mounting bracket 103 can be used to install electrical equipment such as junction boxes and inverters on water photovoltaic systems, and the specific installation components can be selected and configured according to actual needs.

[0043] In some specific embodiments, referring to Figures 1-3 in conjunction with Figure 4 , the first mounting position 11 and the second mounting position 12 can be configured as mounting holes formed on a rigid structure formed within the concave portion of the float body. This design allows the mounting holes to be shallower, making it easier to connect the first mounting bracket 102 and the second mounting bracket 103 using fasteners. It will be understood that the aforementioned mounting hole configuration is merely an example of an embodiment of the present invention, and in actual applications, other configurations may be employed, such as a support column disposed within the float body, with mounting holes formed through the support column. However, this configuration is inconvenient to manufacture and install, requiring the use of extended bolts.

[0044] In some specific embodiments, referring to Figures 1-4 and in conjunction with Figure 5 , the float body 1 may be provided with a first lug connection 2 at one end along the longitudinal direction A, and a second lug connection 3 at the other end along the longitudinal direction A. The first lug connection 2 and the second lug connection 3 have a predetermined height difference, so that when the first lug connection 2 of one float unit overlaps the second lug connection 2 of another float unit along the longitudinal direction A, the top surfaces of the two overlapping float units are flush. The design of the first lug connection 2 and the second lug connection 3 facilitates the connection between the two float units, allowing for an overlapped connection followed by fasteners, resulting in a more stable and reliable structure. In addition, since the first lug connection portion 2 and the second lug connection portion 3 have a preset height difference, the first lug connection portion 2 of one of the two floating units can be overlapped and connected with the second lug connection portion 2 of the other floating unit along the long end direction A, thereby ensuring the flatness of the top surface of the two floating units after connection. Ultimately, it can be ensured that the top surface of the floating platform formed by splicing and connecting multiple floating units is flatter, which makes it more convenient to install and arrange the photovoltaic modules 9.

[0045] In some more specific embodiments, as shown in Figures 1-5 , the outer wall of the float body 1 may be designed with a first protruding structure 21 along the side of the first lug connection 2 facing away from the overlapping surface. This first protruding structure 21 may be a protruding structure extending toward the corresponding end of the float body 1 along the longitudinal direction A. This first protruding structure 21 helps improve the strength of the first lug connection 2. It should be noted that this first protruding structure 21 is preferably designed as an integrally molded structure with the float body 1, which is more convenient to manufacture and has higher stability. Similarly, the outer wall of the float body 1 may be designed with a second protruding structure 31 along the side of the second lug connection 3 facing away from the overlapping surface. This second protruding structure 31 may be a protruding structure extending toward the corresponding end of the float body 1 along the longitudinal direction A. This second protruding structure 31 helps improve the strength of the second lug connection 2. It should also be noted that the second convex extension structure 31 is preferably designed to be an integrally formed structure with the floating body 1. This structure is more convenient to process and has higher stability.

[0046] In a further embodiment, referring to Figures 1 to 5, a first recessed structure 22 may be formed on the outer wall of the above-mentioned floating body 1 along the overlapping surface of the first lug connection part 2 toward the inner side of the floating body 1 along the long end direction A. By designing the first recessed structure 22, a convex-concave matching structure can be formed with the second convex extension structure 31 on the second lug connection part 3, thereby realizing a fool-proof function during the splicing connection and greatly reducing the probability of reverse installation; similarly, a second recessed structure 32 may be formed on the outer wall of the floating body 1 along the overlapping surface of the second lug connection part 3 toward the inner side of the floating body along the long end direction A. By designing the second recessed structure 32, a convex-concave matching structure can be formed with the first convex extension structure 21 on the first lug connection part 2, thereby also realizing a fool-proof function during the splicing connection and reducing the probability of reverse installation.

[0047] It should be noted that, referring to Figures 1 to 5, the first lug connection portion 2 may be provided with one connection hole or multiple connection holes. The present invention preferably designs multiple connection holes on the first lug connection portion 2, so that the stability after connection by fasteners is higher; similarly, the second lug connection portion 3 may be provided with one connection hole or multiple connection holes. The present invention preferably designs multiple connection holes on the second lug connection portion 3, which can also improve the stability after connection by fasteners.

[0048] In some more specific embodiments, referring to Figures 1-3 in conjunction with Figure 7 , both ends of the floating body 1 along the long end direction A may be provided with an operation and maintenance notch 6 that is concave along the short end direction B. The design of the operation and maintenance notch 6 makes it easier to assemble and disassemble the connection between the two floating bodies 1.

[0049] The present invention also provides a floating platform, as shown in FIG8 , comprising a plurality of main floats 7 and equipment floats 8 connected in parallel. The main floats 7 and / or the equipment floats 8 are configured as the floating units described in any of the above-mentioned schemes. The main floats 7 are primarily used to provide buoyancy for the floating platform, and the equipment floats 8 are primarily used to provide installation space for electrical equipment of the water-based photovoltaic system. They are generally designed at the edge of the floating platform, for example, to install ancillary products such as injection junction boxes and inverters. Since the aforementioned floating units have the above-mentioned technical effects, a floating platform equipped with such floating units should also have corresponding technical effects, which will not be elaborated here.

[0050] In addition, the present invention also provides a floating platform, as shown in Figures 5 to 8, comprising at least two interconnected array floats, each array float comprising a pair of connected float units, the float units being the float units described in the above scheme, wherein the two float units overlapped along the long end direction A are defined as a first float unit and a second float unit, respectively, the first lug connection portion 2 of the first float unit overlaps the second lug connection portion 3 of the second float unit and forms an overlapping connection hole position, the first lug connection portion 2 and the second lug connection portion 3 can be fixedly connected by fasteners in conjunction with the overlapping connection hole position. In addition, the overlapping connection hole position can specifically include a first connection hole position and a second connection hole position; wherein the first connection hole position is used to connect to an adjacent first connection hole position on an adjacent array float along the short end direction B through a first connection member 4; the second connection hole position is used to connect to an adjacent second connection hole position on the same array float along the short end direction B through a second connection member 5. By designing the overlapping connection holes into the structural form of the above-mentioned first connection holes and the second connection holes, and cooperating with the first connection member 4 and the second connection member 5, not only can two adjacent floating units of the same array of floats in the short end direction B be realized, but also two adjacent floating units of two adjacent arrays of floats in the short end direction B can be realized, making the entire connection structure of the floating platform more stable and reliable, and the connection more convenient.

[0051] In order for those skilled in the art to better understand the specific connection method of the first connecting member 4 and the second connecting member 5, a brief description is given below in conjunction with Figures 6 and 7:

[0052] The two adjacent array floats on the floating platform are defined as the first array float 200 and the second array float 201. The two second connection holes adjacent to each other along the short end direction B in the first array float 200 are connected by a second connection member 5, and the two first connection holes adjacent to each other along the short end direction B between the first array float 200 and the second array float 201 are connected by a first connection member 4, thereby realizing the connection of the entire floating platform.

[0053] In addition, the present invention also provides a water photovoltaic system including a floating platform, wherein the floating platform is the floating platform described in the above solution. Since the floating platform has the aforementioned technical effects, the water photovoltaic system having the floating platform should also have corresponding technical effects.

[0054] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0055] As used in this application and the claims, unless the context clearly indicates an exception, the terms "a," "an," "an," and / or "the" are not intended to refer to the singular and may include the plural, unless the context clearly indicates otherwise. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements. The phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, product, or apparatus that includes the elements.

[0056] In the description of the embodiments of this application, unless otherwise specified, " / " represents "or." For example, A / B can represent A or B. "And / or" in this document is merely a description of an association relationship between associated objects, indicating that three relationships can exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, in the description of the embodiments of this application, "plurality" refers to two or more than two.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0058] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A floating unit, characterized in that: include: The floating body (1) has a long end direction (A) and a short end direction (B); A first installation position (11) is arranged on both sides of the floating body (1) along the short end direction (B) and close to the middle position of the floating body (A) in the long end direction (A); The second installation position (12) is arranged on both sides of the floating body (1) along the short end direction (B) and is arranged close to the two end positions of the floating body (1) in the long end direction (A); The first mounting position (11) is used for adapting and connecting with a first mounting bracket (102), and the second mounting position (12) is used for adapting and connecting with a second mounting bracket (103).

2. The floating unit according to claim 1, characterized in that: The first mounting bracket (102) is used to mount a rotating shaft (100), the rotating shaft (100) is rotatably arranged on the first mounting bracket (102), and a photovoltaic assembly (9) is mounted on the rotating shaft (100), and the second mounting bracket (103) is used to mount a driving mechanism (101), and the driving mechanism (101) is used to drive the rotating shaft (100) to rotate; Alternatively, the first mounting bracket (102) and / or the second mounting bracket (103) are used to install electrical equipment of the water photovoltaic system.

3. The floating unit according to claim 1, characterized in that: The first mounting position (11) and the second mounting position (12) are both mounting holes opened on a rigid structure formed by the inner concave portion of the floating body (1).

4. The floating unit according to claim 1, characterized in that: A first lug connection portion (2) is provided at one end of the floating body (1) along the long end direction (A), and a second lug connection portion (3) is provided at the other end of the floating body (1) along the long end direction (A); The first embracing ear connection part (2) and the second embracing ear connection part (3) have a preset height difference, so that the first embracing ear connection part (2) of one floating unit and the second embracing ear connection part (3) of another floating unit are When the ear connection parts (2) are overlapped and connected along the long end direction (A), the top surfaces of the two overlapping floating units are flush.

5. The floating unit according to claim 4, characterized in that: The outer wall of the floating body (1) has a first convex structure (21) along a side of the first lug connection portion (2) away from its overlapping matching surface; and / or the outer wall of the floating body (1) has a second convex structure (31) along a side of the second lug connection portion (3) away from its overlapping matching surface; Wherein, the first convex extension structure (21) and / or the second convex extension structure (31) are integrally formed with the floating body (1).

6. The floating unit according to claim 5, characterized in that: The outer wall of the floating body (1) is formed with a first recessed structure (22) along the overlapped surface of the first lug connection portion (2) toward the inner side of the floating body (1) along the long end direction (A); and / or the outer wall of the floating body (1) is formed with a second recessed structure (32) along the overlapped surface of the second lug connection portion (3) toward the inner side of the floating body along the long end direction (A).

7. The floating unit according to claim 4, characterized in that: The first ear connection portion (2) is provided with one or more connection holes; and / or the second ear connection portion (3) is provided with one or more connection holes.

8. The floating unit according to claim 1, characterized in that: Both end sides of the floating body (1) along the long end direction (A) are provided with operation and maintenance cutouts (6) which are concave along the short end direction (B).

9. A floating platform, comprising a plurality of main floating bodies (7) and equipment floating bodies (8) connected in parallel, characterized in that: The main floating body (7) and / or the equipment floating body (8) are configured as a floating body unit according to any one of claims 1-8.

10. A floating platform, characterized in that: The invention comprises at least two mutually connected square array floating bodies, each of the square array floating bodies comprises floating body units connected in pairs, the floating body units are the floating body units according to any one of claims 1 to 8, the two floating body units overlapped and connected along the long end direction (A) are respectively a first floating body unit and a second floating body unit, the first embracing ear connection part (2) of the first floating body unit overlaps with the second embracing ear connection part (3) of the second floating body unit to form an overlapping connection hole position, and the overlapping connection hole position comprises a first connection hole position and a second connection hole position; Wherein, the first connection hole position is used to connect to an adjacent first connection hole position on an adjacent array float along the short end direction (B) through a first connection member (4); and the second connection hole position is used to connect to an adjacent second connection hole position on the same array float along the short end direction (B) through a second connection member (5).

11. A water photovoltaic system, comprising a floating platform, characterized in that: The floating platform is the floating platform as claimed in claim 9 or 10.

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