A photovoltaic module electrical box integrated with multiple fixing structures

Abstract

The present invention provides a photovoltaic module electrical box integrated with multiple fixing structures, which includes a box body, a box cover, and a connector connected to the box body through a cable; the box body includes a box body main body and a fixing structure provided on one side surface, the fixing structure includes a first fixing structure and a second fixing structure, and a clamping component is detachably provided on the second fixing structure; screw fixing hole grooves are provided on the first fixing structure, and screw fixing holes are provided on the second fixing structure; the clamping component is in an S-shaped structure, and the two opening parts are respectively clamped with the second fixing structure and the photovoltaic module frame. The photovoltaic module electrical box integrated with multiple fixing structures of the present invention can not only be fixed to the photovoltaic module by the traditional method of applying glue on the back, but also integrates three fixing structures, which can be flexibly selected by users according to their needs. It is applicable to both pre-installation by component manufacturers, installation during system construction, and installation during the transformation of photovoltaic power generation systems, and the installation method is flexible and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and particularly to a photovoltaic module electrical box integrated with a plurality of fixing structures, which facilitates users to fix the electrical box to the photovoltaic module. Background Art

[0002] A photovoltaic power generation system is a power generation system that uses the photovoltaic effect of photovoltaic cells to directly convert solar radiant energy into electrical energy. While generating clean electricity, it can take into account economic development and ecological protection. Currently, it is widely used in a variety of scenarios and has broad development prospects.

[0003] Photovoltaic modules are the basic power generation units in a photovoltaic power generation system. In order to make the photovoltaic modules form a complete power generation system, some electrical box accessories need to be installed together with the modules. For example, a module junction box that leads the current out of the photovoltaic module and connects the photovoltaic modules into a module string; also, for example, when several photovoltaic modules are connected in series to form a photovoltaic module string with a DC high voltage of more than 1000V, the uncontrollable DC high voltage becomes a safety hazard in the photovoltaic power generation system. Especially in the event of a fire, maintenance, or other emergency situations, it poses a serious obstacle to accident handling and even threatens the personal safety of rescue personnel. In order to eliminate the above safety hazards in the photovoltaic power generation system, a photovoltaic module disconnect junction box that can be quickly turned off needs to be connected to the module. In an emergency or other required situations, the connection of the bus between adjacent modules can be disconnected, and the DC high voltage formed by the series connection of photovoltaic modules can be quickly reduced to a safe voltage; also, for example, an intelligent optimizer that can monitor the power generation status of the module in real time and improve the power generation efficiency of the module. These electrical boxes with different functions generally need to be connected to the module. Some are installed on the module during the production of the photovoltaic module, some are installed during the construction of the photovoltaic power generation system, and some are added when retrofitting existing photovoltaic modules. This has caused the component electrical box to need to adapt to the installation requirements in different usage scenarios, and the current relatively single installation and fixing structure between the electrical box and the module cannot meet the user's usage requirements. Summary of the Invention

[0004] The purpose of the present invention is to solve the different installation requirements of photovoltaic modules in the prior art, and further propose a photovoltaic module electrical box integrated with a plurality of fixing structures, which has a variety of fixing structures, can be suitable for different installation requirements, and has wide applicability.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A photovoltaic module electrical box integrated with multiple fixing structures, the electrical box includes a box body, a box cover snap-fitted and fixed to the box body, and a connector connected to the box body through a cable; the box body includes a box body main body and a fixing structure provided on one side surface of the box body main body, the fixing structure includes a first fixing structure and a second fixing structure, and a clamping member is detachably provided on the second fixing structure; a screw fixing hole groove is provided on the first fixing structure, and a screw fixing hole is provided on the second fixing structure; the clamping member is in an S-shaped structure, and two opening parts are respectively clamped with the second fixing structure and the photovoltaic module frame.

[0007] Preferably, two second fixing structures are provided, and the first fixing structure is provided between the two second fixing structures.

[0008] More preferably, the first fixing structure is connected to the second fixing structure through an integrally formed rib plate.

[0009] More preferably, the screw fixing hole groove on the first fixing structure is a strip-shaped screw hole with an opening on one side.

[0010] More preferably, the side of the second fixing structure in contact with the component is a flat structure, and the opposite back side is an inclined surface structure.

[0011] More preferably, the back side of the second fixing structure includes limiting columns and guiding rib plates provided on both sides, a first slope surface and a second slope surface for guiding the buckle part of the clamping member to be installed with the second fixing part.

[0012] More preferably, the second slope surface is formed by the surfaces of at least two rib plates.

[0013] More preferably, on the back side of the second fixing structure, a slot part cooperating with the buckle part of the clamping member is formed between the transverse rib plate and multiple vertical rib plates.

[0014] More preferably, the screw fixing hole on the second fixing structure is provided at the middle position of the second fixing part, between the first slope surface and the second slope surface.

[0015] More preferably, the first fixing structure, the second fixing structure and the box body main body are of an integrally formed structure.

[0016] More preferably, the opening height of the opening part of the clamping member is less than the height of the corresponding bending part.

[0017] More preferably, on the side of the clamping member corresponding to the installation of the component frame, a barb structure bent towards the frame is provided.

[0018] More preferably, a connector cable outlet hole is further provided on the side surface of the box body, and the outlet hole is arranged on the side surface opposite to the fixing structure or on the other two side surfaces.

[0019] More preferably, the electrical box is a junction box, an intelligent optimizer or a disconnector.

[0020] Compared with the prior art, the beneficial effect of the present invention is that the box body of the photovoltaic module electrical box integrated with a variety of fixing structures can be fixed to the photovoltaic module not only by the traditional method of applying glue on the back, but also integrates three fixing structures, which can be flexibly selected by users according to needs. Whether it is for pre-installation by component manufacturers, installation during system construction or installation during the transformation of the photovoltaic power generation system, it is applicable, and the installation method is flexible and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 The following shows a schematic structural diagram of a photovoltaic module electrical box integrated with a variety of fixing structures according to an embodiment of the present invention;

[0023] Figure 2 The following shows Figure 1 A schematic explosion structure diagram (one side) of the box body of the photovoltaic module electrical box (removing the upper cover and internal components);

[0024] Figure 3 The following shows Figure 2 A schematic explosion structure diagram (the other side) of the box body of the photovoltaic module electrical box;

[0025] Figure 4 The following shows Figure 2 A schematic assembly structure diagram of the clamping component and the second fixing structure of the box body of the photovoltaic module electrical box;

[0026] Figure 5 The following shows Figure 2 A detailed structural diagram of the second fixing structure of the box body of the photovoltaic module electrical box;

[0027] Figure 6 The following shows a schematic structural diagram of the clamping component in FIG. 2. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To further understand the purpose, structure, features, and functions of the present invention, the following is a detailed description in conjunction with embodiments.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0030] Refer to Figure 1 The structural schematic diagram of a photovoltaic module electrical box integrated with multiple fixing structures according to an embodiment of the present invention is shown. The electrical box includes a box body 100, a box cover 200 fixedly buckled with the box body, and a connector 300 connected to the box body through a cable 40; the electrical box can be a junction box, an intelligent optimizer, a disconnector, etc.

[0031] With reference to Figures 2 to 4 The structural schematic diagram of the box body 100 of the photovoltaic module electrical box of this embodiment is shown (the components in the box body such as circuit boards, terminal blocks, etc. are not shown). The box body 100 includes a box body main body 10 and a fixing structure provided on one side surface of the box body main body 10. The fixing structure includes a first fixing structure 11 and a second fixing structure 12. A clamping member 13 is detachably provided on the second fixing structure 12; a screw fixing hole groove 110 is provided on the first fixing 11, and a screw fixing hole 121 is provided on the second fixing structure 12; the clamping member 13 is generally in an S-shaped structure, and the two openings are respectively clamped with the second fixing structure 12 and the photovoltaic module frame.

[0032] Refer to Figure 2 and Figure 3 In a preferred embodiment, two second fixing structures 12 are provided, and the first fixing structure 11 is arranged between the two second fixing structures 12; with reference to Figure 3 and Figure 5 The first fixing structure 11 is connected to the second fixing structure 12 through an integrally formed rib plate 112. Such a design can make the structural strength of the first fixing structure better and avoid structural deformation; in another preferred embodiment, the screw fixing hole groove 110 on the first fixing structure 11 is a long strip-shaped screw hole with an opening on one side. In this way, on the one hand, it is convenient for the screw to be inserted during fixation, and on the other hand, it is also convenient to adjust the installation position of the box body and the component frame during installation.

[0033] See Figure 2 and Figure 5, one side of the second fixing structure 12 that abuts against the component is a planar structure, and the opposite dorsal side is an inclined surface structure; specifically, referring to Figure 5 , for the convenience of description, the installation direction of the clamping component, that is, the arrow direction in the figure, is defined as the vertical direction, and the direction perpendicular to the vertical direction is defined as the horizontal direction. The dorsal side of the second fixing structure 12 includes limiting columns 120 arranged on both sides and a vertical guiding rib plate 122 perpendicular to the frame, guiding the buckling part 132 of the clamping component (see Figure 5 ) to the first slope surface 123 and the second slope surface 124 for installation with the second fixing part. The second slope surface 124 is formed by the surfaces of at least two first vertical rib plates 124; a groove part 126 that cooperates with the buckling part 132 of the clamping component is formed between the horizontal rib plate 125 and a plurality of second vertical rib plates 127. When the clamping component 13 is installed with the second fixing structure 12, the lateral installation position of the clamping component 13 is restricted by the limiting columns 120, and the guiding rib plate 122, the first slope surface 123, and the second slope surface 124 respectively guide the clamping component and the buckling part 132 on the clamping component to be snapped into the second fixing structure along the installation direction. When the buckling part 132 enters the groove part 126, the clamping component 13 is installed in place. The screw fixing hole 121 is arranged at the middle position of the second fixing part 12, between the first slope surface 123 and the second slope surface 124. When in use, the user can choose to install the box body and the photovoltaic component by screwing or clamping with the clamping component.

[0034] In this embodiment, the first fixing structure and the second fixing structure are mainly formed by rib plate structures. Compared with the plate-shaped structure, they have higher structural strength and save materials.

[0035] In a preferred implementation manner, the first fixing structure, the second fixing structure, and the box body are of an integrally formed structure.

[0036] Referring to Figure 5 , the clamping component 13 is in an S-shaped configuration, and the two openings respectively correspond to the installation of the second fixing part and the component frame. For example, as shown in the figure, the first opening A corresponds to the installation of the second fixing part 12, and the second opening B corresponds to the installation of the component frame; in order to ensure the effect of interference fit, the opening height of the opening is less than the height of the corresponding bending part, that is, the opening height c of the first opening A is less than the height d of the corresponding bending part, and the opening height a of the second opening B is less than the height b of the corresponding bending part. In another preferred implementation manner, referring to Figure 5 , in order to ensure the fixing effect of the clamping component (together with the box body) and the component frame, on one side of the clamping component 13 corresponding to the installation of the component frame, there is a barb structure 131 bent towards the frame, firmly fixing the clamping component (together with the box body) on the component frame.

[0037] Referring to Figure 1 andFigure 2 , a connector cable outlet hole 16 is further provided on the side surface of the box body. The outlet hole can be arranged on the side surface opposite to the fixing structure, or can be arranged on the other two side surfaces; one outlet hole 16 can lead out a set of positive and negative cables, or one outlet hole can only lead out one cable, and more than one outlet hole can be provided.

[0038] The box body of the photovoltaic module electrical box integrated with a variety of fixing structures of the present invention can be fixed to the photovoltaic module by the traditional method of applying glue on the back in addition to integrating three fixing structures, which can be flexibly selected by users according to their needs. It is applicable whether it is for pre-installation by component manufacturers, installation during system construction, or installation during the transformation of the photovoltaic power generation system. The installation method is flexible and convenient.

[0039] The present invention has been described by the above related embodiments. However, the above embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and refinements made without departing from the spirit and scope of the present invention fall within the scope of patent protection of the present invention.

Claims

1. A photovoltaic module electrical box integrated with multiple fixing structures, Characterized in that, The electrical box includes a box body, a box cover snap-fitted and fixed to the box body, and a connector connected to the box body through a cable; the box body includes a box body main body and a fixing structure provided on one side surface of the box body main body, the fixing structure includes a first fixing structure and a second fixing structure, and a clamping component is detachably provided on the second fixing structure; screw fixing hole grooves are provided on the first fixing structure, screw fixing holes are provided on the second fixing structure, and the back side of the second fixing structure includes limiting columns and guiding rib plates provided on both sides, guiding the first slope surface and the second slope surface where the buckle part of the clamping component is installed with the second fixing part. On the back side of the second fixing structure, a slot part matching with the buckle part of the clamping component is formed between the transverse rib plate and multiple vertical rib plates; the clamping component is of an S-shaped structure, and the two opening parts are respectively clamped with the second fixing structure and the photovoltaic module frame, and the opening height of the opening part of the clamping component is less than the height of the corresponding bending part; when the clamping component is installed with the second fixing structure, the transverse installation position of the clamping component is limited by the limiting columns, and the guiding rib plates, the first slope surface and the second slope surface respectively guide the clamping component and the buckle part on the clamping component to be clamped into the second fixing structure along the installation direction. When the buckle part enters the slot part, the clamping component is installed in place; on the side of the clamping component corresponding to the installation of the module frame, a barbed structure bent towards the frame is provided.

2. A photovoltaic module electrical box integrated with multiple fixing structures according to claim 1, Characterized in that, Two second fixing structures are provided, and the first fixing structure is arranged between the two second fixing structures.

3. A photovoltaic module electrical box integrated with multiple fixing structures according to claim 1 or 2, Characterized in that, The first fixing structure is connected to the second fixing structure through an integrally formed rib plate.

4. A photovoltaic module electrical box integrated with multiple fixing structures according to claim 3, Characterized in that, The screw fixing hole groove on the first fixing structure is a strip-shaped screw hole with an opening on one side.

5. A photovoltaic module electrical box integrated with multiple fixing structures according to claim 3, Characterized in that, The side of the second fixing structure in contact with the module is a flat structure, and the opposite back side is an inclined surface structure.

6. A photovoltaic module electrical box integrated with multiple fixing structures according to claim 5, Characterized in that, The second slope surface is formed by the surfaces of at least two rib plates.

7. A photovoltaic module electrical box integrated with multiple fixing structures according to claim 5, Characterized in that, The screw fixing hole on the second fixing structure is arranged at the middle position of the second fixing part, between the first slope surface and the second slope surface.

8. A photovoltaic module electrical box integrated with multiple fixing structures according to claim 3, Characterized in that, The first fixing structure, the second fixing structure and the box body main body are of an integrally formed structure.

9. A photovoltaic module electrical box integrated with multiple fixing structures according to claim 1 or 2, Characterized in that, A connector cable outlet hole is also provided on the side surface of the box body, and the outlet hole is provided on the side surface opposite to the fixing structure or on the other two side surfaces.

10. A photovoltaic module electrical box integrated with multiple fixing structures as described in claim 1, characterized in that the electrical box is a junction box, an intelligent optimizer or a disconnector.

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