Clamp, photovoltaic device and system

Abstract

The utility model relates to a clamp, a photovoltaic device and a system, and relates to the field of photovoltaic power generation, and the clamp comprises a fixed part and two movable parts. Wherein the fixing part is configured to be fixedly connected with a photovoltaic bracket; the movable parts are configured to be fixedly connected with the photovoltaic modules, the movable parts are hinged to the fixed part, the two movable parts rotate to a first position or a second position relative to the fixed part, the first position is the position of the two movable parts when the first photovoltaic module and the second photovoltaic module are parallel, and the second position is the position of the two movable parts when the first photovoltaic module and the second photovoltaic module are parallel. The second position is the position of the two movable parts when the first photovoltaic module is flush with the second photovoltaic module; the first photovoltaic module and the second photovoltaic module are two photovoltaic modules connected with the two movable parts connected with the fixed part. According to the invention, the two movable parts which are hinged to the fixed part and are fixed to the photovoltaic module are used for preassembling the photovoltaic module, so that the photovoltaic module can be conveniently installed on the photovoltaic support in a fixed state.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic power generation, and in particular to a clamp, a photovoltaic device and a system. Background Art

[0002] At present, flexible brackets are a new type of photovoltaic bracket. They do not require on-site leveling during installation. They are mostly used in mountainous areas with complex terrain, high-clearance and large-span farmland pond scenes, or scenes where it is inconvenient for commonly used installation machinery and equipment to enter for construction. Flexible brackets are generally at a high distance from the ground, and the clear ground height is generally more than 2 meters.

[0003] When photovoltaic modules are installed on flexible brackets, they need to be installed with the help of construction platforms, scaffolding or ladders, which makes the installation of photovoltaic modules difficult and the installation efficiency is low. Utility Model Content

[0004] The present application provides a clamp, a photovoltaic device and a system, which facilitate the installation of photovoltaic components on a photovoltaic bracket in a fixed state, thereby reducing the labor and time costs of transporting and installing the photovoltaic components.

[0005] The present application provides a clamp, comprising a fixed part and two movable parts; wherein the fixed part is configured to be fixedly connected to a photovoltaic bracket; the movable part is configured to be fixedly connected to a photovoltaic component, the movable part is hinged to the fixed part, and the two movable parts rotate relative to the fixed part to a first position or a second position, the first position is the position of the two movable parts when the first photovoltaic component and the second photovoltaic component are parallel, and the second position is the position of the two movable parts when the first photovoltaic component and the second photovoltaic component are flush; the first photovoltaic component and the second photovoltaic component are two photovoltaic components connected to the two movable parts connected to the fixed part.

[0006] In the above technical solution, during the transportation of photovoltaic components, the movable part is placed in the first position, at which time two adjacent photovoltaic components connected to the two movable parts are in a folded state, which facilitates the transportation of the photovoltaic components connected by the clamp.

[0007] When installing photovoltaic modules connected using the clamp, it is only necessary to fix one end of the multiple photovoltaic modules to the photovoltaic bracket and pull the other end to drive the multiple photovoltaic modules to move and unfold, thereby speeding up the installation efficiency of the multiple photovoltaic modules on the photovoltaic bracket.

[0008] The photovoltaic components connected by the clamp are particularly suitable for installation on flexible photovoltaic brackets, reducing the use of installation mechanical equipment.

[0009] The present application provides a photovoltaic device, including a first photovoltaic component, a second photovoltaic component and a clamp, wherein the first photovoltaic component and the second photovoltaic component are connected via the clamp.

[0010] In the above technical solution, the photovoltaic device is easy to transport, has high installation efficiency, requires less equipment during installation, and is particularly suitable for installation on a flexible bracket.

[0011] The present application also provides a photovoltaic system, including a photovoltaic bracket and a photovoltaic device, wherein the photovoltaic device is fixed on the photovoltaic bracket in a fixed state.

[0012] In the above technical solution, the photovoltaic system is easy to transport, has high installation efficiency, requires less equipment during installation, and is particularly suitable for use when the bracket is flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of a photovoltaic system in an embodiment;

[0014] Figure 2 is a schematic structural diagram of a photovoltaic device in which two adjacent photovoltaic modules are in parallel in an embodiment;

[0015] Figure 3 is a schematic diagram of the structure of the connection between the clamp, the second photovoltaic module and the steel wire rope in an embodiment;

[0016] Figure 4 is a schematic diagram of the structure of a clamp and a photovoltaic module in an embodiment;

[0017] Figure 5 The diagram is a schematic diagram of the structure of a clamp and a photovoltaic module in an embodiment.

[0018] 1. Fixed part; 11. Connecting groove; 2. Movable part; 21. Supporting part; 22. Pressing part; 221. First step; 222. Second step; 23. Fastener; 24. Connecting part; 3. Steel wire rope; 4. Pressing plate; 5. First photovoltaic module; 6. Second photovoltaic module. DETAILED DESCRIPTION

[0019] The present application is further described in detail below through the accompanying drawings and embodiments. Through these descriptions, the characteristics and advantages of the present application will become clearer and more specific.

[0020] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise noted.

[0021] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0022] The embodiment of the present application discloses a clamp for fixing a photovoltaic module on a photovoltaic support in a photovoltaic system to maintain the stability of the photovoltaic module on the photovoltaic support.

[0023] Reference Figure 1 In this embodiment, the photovoltaic support includes two steel wire ropes 3, both ends of the two steel wire ropes 3 are kept fixed, the two steel wire ropes 3 are parallel to each other, and the two fixed steel wire ropes 3 serve as a photovoltaic support.

[0024] In another embodiment, the number of steel wire ropes 3 can be designed according to needs, such as three or four.

[0025] In another embodiment, the photovoltaic support is a rigid support composed of columns, beams and trusses.

[0026] The placement of the photovoltaic bracket is determined according to needs, such as placing it in mountainous areas, on the ground, on the roof or on the water surface.

[0027] A plurality of photovoltaic modules are fixed on the photovoltaic support, and the plurality of photovoltaic modules are arranged in sequence along the length direction of the steel wire rope 3 .

[0028] For ease of description, any two adjacent photovoltaic modules along the length direction of the steel wire rope 3 are defined as the first photovoltaic module 5 and the second photovoltaic module 6. A first direction, a second direction and a third direction are defined, wherein the first direction is the length direction of the steel wire rope 3, the second direction is the arrangement direction of the two steel wire ropes 3, and the third direction is the thickness direction of the photovoltaic module when the photovoltaic module is installed on the photovoltaic bracket. In the accompanying drawings, the first direction is represented as the X direction, the second direction is represented as the Y direction, and the third direction is represented as the Z direction.

[0029] In this embodiment, when the photovoltaic assembly is installed on the photovoltaic support, the length of the photovoltaic assembly is set along the second direction, and the width is set along the first direction.

[0030] Reference Figure 1 A clamp comprises a fixing part 1 and two movable parts 2. The fixing part 1 is configured to be fixedly connected to a photovoltaic support.

[0031] The movable part 2 is configured to be fixedly connected to the photovoltaic assembly, the movable part 2 is hinged to the fixed part 1, and the two movable parts 2 rotate to the first position or the second position relative to the fixed part 1. The first position is the position of the two movable parts 2 when the first photovoltaic assembly 5 and the second photovoltaic assembly 6 are parallel, and the second position is the position of the two movable parts 2 when the first photovoltaic assembly 5 and the second photovoltaic assembly 6 are flush; the first photovoltaic assembly 5 and the second photovoltaic assembly 6 are two photovoltaic assemblies connected to the two movable parts connected to the fixed part.

[0032] Specifically, the fixing part 1 is a rigid part, and the fixing part 1 is used to be fixedly connected to the photovoltaic bracket in a fixed state. The connection method between the fixing part 1 and the photovoltaic bracket is determined according to design requirements, and can be a detachable connection or a non-detachable connection. The detachable connection method includes bolt connection or clamping, and the non-detachable connection includes riveting or welding.

[0033] A clamp includes two movable parts 2, and the movable parts 2 are fixedly connected to the photovoltaic module, which means that two movable parts 2 are connected to one fixed part 1, and the two movable parts 2 are fixedly connected to two photovoltaic modules in a one-to-one correspondence. The movable part 2 is specifically detachably fixedly connected to the frame of the photovoltaic module, and the movable part 2 is relatively fixed to the photovoltaic module. When the movable part 2 moves, the photovoltaic module moves synchronously.

[0034] The movable part 2 is hingedly connected to the fixed part 1, and the hinge axes of the two movable parts 2 and the fixed part 1 are parallel to each other, and in this embodiment, they are both along the second direction. The two movable parts 2 are respectively located at the two ends of the fixed part 1 along the first direction, and the two movable parts 2 are independent of each other when rotating relative to the fixed part 1.

[0035] Reference Figure 1 FIG. 4 shows two movable parts 2 in the second position, where the first photovoltaic component 5 and the second photovoltaic component 6 connected to the two movable parts 2 are flush with each other.

[0036] Reference Figure 4 FIG. 4 shows two movable parts 2 at a first position, where a first photovoltaic component 5 and a second photovoltaic component 6 connected to the two movable parts 2 are parallel to each other.

[0037] The installation of the photovoltaic system is described as follows:

[0038] Step 1: Fix the first photovoltaic assembly 5 and the second photovoltaic assembly 6 with a clamp in advance, and make the movable part 2 in the first position. At this time, the first photovoltaic assembly 5 and the second photovoltaic assembly 6 are parallel to each other and in a folded state.

[0039] Step 2: transport the photovoltaic assembly connected to the clamp to the installation site, fix the two ends of the steel wire rope 3, place the fixed part 1 between the folded first photovoltaic assembly 5 and the second photovoltaic assembly 6 on the steel wire rope 3, rotate the first photovoltaic assembly 5, and make the movable part 2 fixedly connected to the first photovoltaic assembly 5 rotate relative to the fixed part 1 until the first photovoltaic assembly 5 is placed flat on the steel wire rope 3. At this time, the thickness of the first photovoltaic assembly 5 is along the third direction.

[0040] Step 3: fix the end of the first photovoltaic assembly 5 away from the movable part 2 with the steel wire rope 3 using a fixing device.

[0041] Step 4: Pull one end of the second photovoltaic component 6 away from the first photovoltaic component 5 and slide it along the first direction, so that the movable part 2 fixedly connected to the second photovoltaic component 6 rotates relative to the fixed part 1 until the second photovoltaic component 6 is placed flat on the wire rope 3. At this time, the thickness of the second photovoltaic component 6 is along the third direction, and the two movable parts 2 are in the second position.

[0042] Step 5. When the end of the second photovoltaic component 6 away from the first photovoltaic component 5 is not connected to other photovoltaic components, fix the end of the second photovoltaic component 6 away from the first photovoltaic component 5 to the steel wire rope 3 using a fixing device; when the end of the second photovoltaic component 6 away from the first photovoltaic component 5 is connected to other photovoltaic components, after all the photovoltaic components are placed flat on the steel wire rope 3, fix the end of the photovoltaic component farthest from the first photovoltaic component 5 away from the first photovoltaic component 5 using a fixing device and the steel wire rope 3.

[0043] Step 6: Fix the fixing part 1 and the steel wire rope 3 together.

[0044] During the transportation of the photovoltaic modules, the two movable parts 2 are in the first position, and at this time, two adjacent photovoltaic modules are in a folded state, which facilitates the transportation of the photovoltaic modules.

[0045] Compared with the prior art, in which individual photovoltaic modules are fixed one by one on the photovoltaic bracket, the clamp in this embodiment can install multiple photovoltaic modules on the photovoltaic bracket by only fixing one end of the multiple photovoltaic modules to the photovoltaic bracket and pulling the other end to drive the multiple photovoltaic modules to move and unfold, thereby speeding up the installation efficiency of multiple photovoltaic modules on the photovoltaic bracket.

[0046] Furthermore, the use of the clamp is particularly suitable for flexible photovoltaic brackets, such as using a fixed steel wire rope 3 as the installation of the photovoltaic bracket. In scenes where mechanical equipment is installed and the bracket is inconvenient to enter, such as hills or mountainous areas, the use of the clamp can further reduce the use of mechanical equipment for installation.

[0047] Reference Figure 4 As an optional solution, the two movable parts 2 are located on the same side of the fixed part 1 when in the first position, and the first photovoltaic component 5 and the second photovoltaic component 6 are both located on the same side of the fixed part 1 when in a parallel state.

[0048] Specifically, Figure 4 The movable part 2 is shown in a first position, at which the first photovoltaic component 5 and the second photovoltaic component 6 connected to the two movable parts 2 are parallel to each other and located on the same side of the fixed part 1 .

[0049] In another embodiment, Figure 5The movable part 2 is shown in the first position, at which time the two photovoltaic components connected to the two movable parts 2 are parallel to each other, and two partially adjacent photovoltaic components are located on the same side of the fixed part 1, and two partially adjacent photovoltaic components are located on both sides of the fixed part 1.

[0050] In this embodiment, the two photovoltaic modules are located on the same side of the fixing portion 1 when in a parallel state, which can facilitate the transportation of the photovoltaic modules and the folding or unfolding operation of multiple photovoltaic modules.

[0051] Reference Figure 2 As an optional solution, a connecting groove 11 is provided on the fixing part 1, and the connecting groove 11 is arranged on the side of the fixing part 1 away from the movable part 2, and the connecting groove 11 is used to accommodate the part of the photovoltaic bracket in a fixed state for connecting with the fixing part 1.

[0052] Specifically, the connection groove 11 is arranged along the first direction and passes through both ends of the fixing part 1 along the first direction. The connection groove 11 can accommodate the part of the photovoltaic bracket in a fixed state for connecting with the fixing part 1. In this embodiment, the connection groove 11 can accommodate the steel wire rope 3. The cross-sectional shape of the connection groove 11 is determined according to design requirements. In this embodiment, the cross-sectional shape of the connection groove 11 is semicircular; optionally, the cross-sectional shape of the connection groove 11 is elliptical or trapezoidal.

[0053] The connecting groove 11 with a semicircular cross section can facilitate the insertion of the steel wire rope 3, and the force between the steel wire rope 3 and the connecting groove 11 along the second direction is more uniform.

[0054] When the clamp is placed on the photovoltaic bracket, the connection groove 11 can cooperate with the part of the photovoltaic bracket used to connect with the fixing part 1, which is convenient for positioning the fixing part 1, and the sliding of the fixing part 1 on the photovoltaic bracket in step two during installation is more stable.

[0055] After the fixing part 1 is connected and fixed to the photovoltaic bracket, part of the force acting between the fixing part 1 and the photovoltaic bracket along the second direction is converted into pressure between the fixing part 1 and the photovoltaic bracket, which can improve the stability of the connection between the fixing part 1 and the photovoltaic bracket.

[0056] Reference Figure 3 As an optional solution, the clamp also includes a pressing plate 4, which is detachably fixedly connected to the fixing part 1, and the pressing plate 4 is configured to press and fix the part of the photovoltaic bracket in a fixed state that is used to be connected to the fixing part 1 to the fixing part 1.

[0057] Specifically, the pressing plate 4 and the fixing part 1 are detachably fixedly connected by a bolt and nut assembly. The portion of the photovoltaic bracket in a fixed state that is used to connect with the fixing part 1 is located between the pressing plate 4 and the fixing part 1. In this embodiment, the steel wire rope 3 is located between the pressing plate 4 and the fixing part 1; two groups of bolt and nut assemblies are provided, and the steel wire rope 3 is configured to be located between the two groups of bolt and nut assemblies.

[0058] Furthermore, the pressing plate 4 has a semicircular curved portion, which is used to correspond to the steel wire rope 3, thereby improving the uniformity of the pressing force of the pressing plate 4 on the steel wire rope 3 and the stability of the connection between the pressing plate 4 and the fixing part 1.

[0059] In another embodiment, the clamp may also be fixedly connected to the portion of the photovoltaic support in a fixed state that is used to connect with the fixing portion 1 through other structures.

[0060] Reference Figure 2 As an optional solution, the movable part 2 includes a supporting member 21 , a pressing member 22 and a fastening member 23 .

[0061] The supporting member 21 is hinged to the fixing portion 1. The pressing member 22 is fixedly connected to the supporting member 21. A gap is formed between the supporting member 21 and the pressing member 22 for accommodating the frame of the photovoltaic module to extend therein.

[0062] The fastener 23 connects the supporting member 21 and the pressing member 22 and is configured to press and fix the supporting member 21 , the connecting frame and the pressing member 22 . The connecting frame is a frame in the photovoltaic module that can extend between the supporting member 21 and the pressing member 22 .

[0063] Specifically, the supporting member 21 is hinged to the fixing portion 1 , the pressing member 22 is fixedly connected to the supporting member 21 , and the fastening member 23 connects and presses the pressing member 22 and the supporting member 21 .

[0064] When the supporting member 21 rotates relative to the fixing portion 1 , the pressing member 22 and the fastening member 23 move synchronously with the supporting member 21 .

[0065] The connection method between one end of the pressing piece 22 and the supporting piece 21 is determined according to design requirements. For example, the pressing piece 22 and the supporting piece 21 are integrally formed. Optionally, the pressing piece 22 and the supporting piece 21 are welded and fixed. There is a gap between the other end of the pressing piece 22 and the supporting piece 21, and the gap can accommodate the frame of the photovoltaic module. The fastener 23 is a bolt and nut assembly in this embodiment.

[0066] When the movable part 2 is pre-assembled with the photovoltaic module, the connecting frame is moved between the pressing piece 22 and the supporting piece 21, and the fastener 23 is used to connect and press the pressing piece 22 and the supporting piece 21, so that the pressing piece 22 and the supporting piece 21 are deformed and pressed and fixed with the connecting frame.

[0067] Reference Figure 2 As an optional solution, the movable part 2 further includes a connecting member 24, and the connecting member 24 connects the supporting member 21 and the connecting frame; the supporting member 21 is used for the side of the photovoltaic component facing the photovoltaic bracket.

[0068] Specifically, there is a gap in some areas between the back plate and the connection frame on the photovoltaic module. The connector 24 includes a bolt and nut assembly, and through holes are provided on the supporting member 21 and the connection frame. The bolt and nut assembly connects the supporting member 21 and the connection frame. The supporting member 21 is located on the side of the photovoltaic module facing the steel wire rope 3 along the third direction.

[0069] The provision of the connecting member 24 further improves the stability of the connection between the movable part 2 and the connecting frame, thereby improving the stability of the connection between the clamp and the photovoltaic module.

[0070] The supporting member 21 is located on the side of the photovoltaic component facing the photovoltaic support, which can keep the surface of the photovoltaic component unobstructed and reduce the situation where the connecting member 24 blocks light from irradiating the photovoltaic component.

[0071] Reference Figure 2 As an optional solution, the pressing member 22 includes a first step 221 and a second step 222. The first step 221 is fixedly connected to the second step 222, and the first step 221 is fixedly connected to the supporting member 21 through a fastener 23; the second step 222 is pressed and fixed to the end of the connecting frame away from the supporting member 21.

[0072] Specifically, the pressing member 22 further includes a first vertical plate and a second vertical plate, the first vertical plate, the first step 221, the second vertical plate and the second step 222 are connected end to end in sequence, and one end of the first vertical plate away from the first step 221 is fixedly connected to the supporting member 21. The first vertical plate and the second vertical plate are parallel to each other, the first step 221 and the second step 222 are parallel to each other, the first vertical plate and the first step 221 are perpendicular to each other, and the first step 221 and the supporting member 21 are parallel to each other.

[0073] The first step 221 and the supporting member 21 are both provided with corresponding through holes along the thickness direction of the first step 221, and the fastener 23 connects and presses the first step 221 and the supporting member 21. The second step 222 and the supporting member 21 are respectively pressed and fixed to the two ends of the connection frame along the first direction in a one-to-one correspondence.

[0074] Reference Figure 4 The present application also discloses a photovoltaic device, including a first photovoltaic component 5, a second photovoltaic component 6 and a clamp. The first photovoltaic component 5 and the second photovoltaic component 6 are connected by the clamp.

[0075] Specifically, Figure 4 FIG. 4 shows the state of two movable parts 2 in the first position on the same fixed part 1 , at which time the first photovoltaic component 5 and the second photovoltaic component 6 are parallel to each other.

[0076] This embodiment only illustrates the connection between three photovoltaic modules through two sets of clamps, and one set of clamps includes two clamps. The number of photovoltaic modules in the photovoltaic device is determined according to design requirements. Optionally, the photovoltaic device includes three photovoltaic modules or four photovoltaic modules, wherein any two adjacent photovoltaic modules can be the first photovoltaic module 5 and the second photovoltaic module 6.

[0077] The photovoltaic device using the clamp in the present application can facilitate the folding, placement and transportation of the photovoltaic device. When the photovoltaic device needs to be installed on the photovoltaic bracket, multiple photovoltaic components can be placed on the photovoltaic bracket at the same time, and then the fixing part 1 and the photovoltaic bracket are installed and fixed to achieve the fixation of multiple photovoltaic components on the photovoltaic bracket. The photovoltaic device is easy to transport, quick to install, and requires less installation equipment.

[0078] Reference Figure 1 The present application also discloses a photovoltaic system, including a photovoltaic bracket and a photovoltaic device, wherein the photovoltaic device is fixed on the photovoltaic bracket in a fixed state.

[0079] Specifically, the fixing part 1 of the clamp in the photovoltaic device is fixed on the photovoltaic support. The photovoltaic support can be a rigid support structure or a flexible support structure.

[0080] Reference Figure 1 As an optional solution, the photovoltaic support includes a flexible steel wire rope 3 in a fixed state, and the fixing part 1 is fixedly connected to the steel wire rope 3 .

[0081] Specifically, the fixing part 1 is fixedly connected to the steel wire rope 3 using a clamping plate. Two steel wire ropes 3 are arranged at intervals along the second direction, and the two steel wire ropes 3 are fixedly arranged at both ends along the first direction to form a photovoltaic bracket in a fixed state for installing a photovoltaic device. The fixing plate is placed on the steel wire rope 3, and the clamping plate is connected to the fixing plate, and the steel wire rope 3 is pressed and fixed between the clamping plate and the fixing plate to achieve the connection and fixation between the fixing part 1 and the photovoltaic device.

[0082] The "parallel" and "perpendicular" mentioned in this application can not only be completely parallel or perpendicular, but also can have a certain error; for example, if the angle between the two is greater than or equal to 0° and less than or equal to 5°, the two are considered to be parallel to each other; if the angle between the two is greater than or equal to 85° and less than or equal to 95°, the two are considered to be perpendicular to each other.

[0083] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships in the working state of the present application. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present application.

[0084] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect" and "connect" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0085] The present application has been described above in conjunction with preferred embodiments, but these embodiments are only exemplary and serve only as an illustration. On this basis, various replacements and improvements may be made to the present application, all of which fall within the scope of protection of the present application.

Claims

1. A clamp, characterized in that: It includes a fixed part and two movable parts; wherein, The fixing portion is configured to be fixedly connected to the photovoltaic bracket; The movable part is configured to be fixedly connected to the photovoltaic component, the movable part is hinged to the fixed part, and the two movable parts rotate relative to the fixed part to a first position or a second position, the first position is the position of the two movable parts when the first photovoltaic component and the second photovoltaic component are parallel, and the second position is the position of the two movable parts when the first photovoltaic component and the second photovoltaic component are flush; the first photovoltaic component and the second photovoltaic component are two photovoltaic components connected to the two movable parts connected to the fixed part.

2. The clamp according to claim 1, characterized in that: The two movable parts are located on the same side of the fixed part when they are in the first position, and the first photovoltaic component and the second photovoltaic component are both located on the same side of the fixed part when they are in a parallel state.

3. The clamp according to claim 2, characterized in that: The fixing part is provided with a connecting groove, which is arranged on a side of the fixing part away from the movable part, and is used to accommodate a part of the photovoltaic bracket in the fixed state that is used to be connected with the fixing part.

4. The clamp according to claim 1, characterized in that: It also includes a pressing plate, which is detachably fixedly connected to the fixing part, and the pressing plate is configured to press and fix the part of the photovoltaic bracket in the fixed state that is used to be connected to the fixing part to the fixing part.

5. The clamp according to any one of claims 1 to 4, characterized in that: The movable part includes a supporting member, a pressing member and a fastening member; wherein, The supporting member is hinged to the fixing portion; The pressing member is fixedly connected to the supporting member; A gap is constructed between the supporting member and the pressing member for accommodating the frame of the photovoltaic assembly to extend therein; The fastener connects the supporting member and the pressing member, and is configured to compress and fix the supporting member, the connecting frame and the pressing member. The connecting frame is a frame in the photovoltaic component that can extend between the supporting member and the pressing member.

6. The clamp according to claim 5, characterized in that The movable part further comprises a connecting member, and the connecting member connects the supporting member and the connecting frame; The supporting member is used for the side of the photovoltaic component facing the photovoltaic support.

7. The clamp according to claim 5, characterized in that: The pressing member includes a first step and a second step; wherein, The first step is fixedly connected to the second step, and the first step is fixedly connected to the supporting member via the fastener; The second step is pressed and fixed to an end of the connecting frame away from the supporting member.

8. A photovoltaic device, characterized in that: The invention comprises a first photovoltaic component, a second photovoltaic component and a clamp as claimed in any one of claims 1 to 7; wherein: The first photovoltaic component and the second photovoltaic component are connected via the clamp.

9. A photovoltaic system, characterized in that: The invention comprises a photovoltaic support and the photovoltaic device described in claim 8, wherein the photovoltaic device is fixed on the photovoltaic support in a fixed state.

10. The photovoltaic system according to claim 9, characterized in that: The photovoltaic support comprises a flexible steel wire rope in a fixed state, and the fixing portion is fixedly connected to the steel wire rope.

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