Photovoltaic module and photovoltaic power generation system

Abstract

The utility model discloses a photovoltaic module and a photovoltaic power generation system, which relate to the field of photovoltaics. The photovoltaic module comprises a stacked main body and two frames, one of the two frames is connected to one side edge of the stacked main body, the other frame is connected to the other side edge of the stacked main body, and a gap for sewage discharge is formed between the two frames. The photovoltaic module provided by the utility model can prevent dust from accumulating around the stacked main body, avoiding power generation loss and hot spot problems.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaics, and in particular to a photovoltaic component and a photovoltaic power generation system. Background Art

[0002] Photovoltaic modules are composed of a frame and a stacked body, which is formed by stacking cells, front glass, back glass and adhesive film in sequence.

[0003] At present, the frames of photovoltaic modules on the market fully surround the periphery of the stacked body. In actual applications, due to the full surrounding effect of the frame, dust will accumulate along the periphery of the stacked body, and when it comes into contact with water, mud and dirt will form and adhere to the stacked body, causing loss of power generation of the stacked body and triggering hot spot effect. Utility Model Content

[0004] The utility model aims to provide a photovoltaic component, which can prevent dust accumulation around the periphery of the non-stacked main body, thereby avoiding power generation loss and hot spot problems.

[0005] Another object of the utility model is to provide a photovoltaic power generation system, which can prevent dust accumulation around the non-stacked main body, thereby avoiding power generation loss and hot spot problems.

[0006] The embodiment of the utility model provides a technical solution:

[0007] A photovoltaic component comprises a stacked body and two frames, one of the two frames is connected to one side edge of the stacked body, the other frame is connected to the other side edge of the stacked body, and a gap for sewage discharge is formed between the two frames.

[0008] In an optional embodiment, the two long sides of the stacked body are respectively connected to the two frame frames.

[0009] In an optional embodiment, surface A of the frame has concave-convex anti-slip patterns.

[0010] In an optional embodiment, the raised portion of the concave-convex anti-slip pattern is rounded.

[0011] In an optional embodiment, the B surface of the frame has concave-convex reinforcement lines, and / or,

[0012] The thickness of the B surface of the frame is between 1.5 mm and 2.0 mm.

[0013] In an optional embodiment, the photovoltaic assembly further includes a corner guard, wherein the corner guard is disposed at an end portion of the frame in a length direction, and the corner guard protrudes from an end wall corresponding to one end of the frame.

[0014] In an optional embodiment, the frame includes a mounting groove and a corner code cavity, an angle cavity is formed between the B surface and the C surface of the frame, and the corner protector is plugged into at least one of the mounting groove, the corner code cavity and the angle cavity.

[0015] In an optional embodiment, the corner guard comprises a body, and a first sealing plug, a second sealing plug and a third sealing plug protruding from the same side surface of the body, wherein the first sealing plug, the second sealing plug and the third sealing plug are arranged at intervals from each other;

[0016] The first sealing plug is plugged into one end of the installation groove, the second sealing plug is plugged into one end of the angle code cavity, and the first sealing plug is plugged into one end of the angle cavity.

[0017] In an optional embodiment, the frame has a mounting groove, the mounting groove is plugged into a side edge of the stacked body, and a sealant is filled between the stacked body and the groove wall of the mounting groove;

[0018] A glue overflow groove is provided on at least one side groove wall of the installation groove.

[0019] The utility model also provides a photovoltaic power generation system, including the photovoltaic module. The photovoltaic module includes a stacked body and two frames, one of the two frames is connected to one side edge of the stacked body, the other frame is connected to the other side edge of the stacked body, and a gap for sewage discharge is formed between the two frames.

[0020] Compared with the related art, the photovoltaic module provided by this embodiment has only two frames connected to the two side edges of the stacked body, and a gap is formed between the two frames, so that dust falling on the surface of the stacked body can leave through the gap, avoiding dust accumulation around the edge of the stacked body, thereby solving the problem of power generation loss and hot spots. Therefore, the beneficial effects of the photovoltaic module provided by the utility model include: being able to prevent dust from accumulating around the stacked body, avoiding power generation loss and hot spot problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of the structure of a photovoltaic module provided in an embodiment of the utility model;

[0023] Figure 2An exploded schematic diagram of a photovoltaic module provided in an embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the connection between the frame and the stacked body;

[0025] Figure 4 It is a schematic diagram of a part of the structure of the frame;

[0026] Figure 5 for Figure 2 A magnified schematic diagram of the middle D area;

[0027] Figure 6 It is a schematic diagram of the structure of the corner protector in the first perspective;

[0028] Figure 7 It is a schematic diagram of the structure of the corner protector under the second viewing angle.

[0029] Icons: 100-photovoltaic module; 110-stacked body; 111-back panel glass; 112-adhesive film; 113-battery cell; 114-front glass; 115-junction box; 116-bus bar; 120-frame; 121-concave-convex anti-slip pattern; 122-concave-convex reinforcement pattern; 123-installation slot; 124-corner code cavity; 125-sealant; 126-overflow glue groove; 1271-outer plate; 1272-top plate; 1273-middle partition; 1274-bottom plate; 1275-inner plate; 128-angle cavity; 130-gap; 140-corner guard; 141-first sealing plug; 1415-horizontal gap; 142-second sealing plug; 1425-vertical gap; 143-third sealing plug; 144-body. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships that are usually understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0034] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings.

[0037] Example

[0038] Please refer to Figure 1 and Figure 2 , Figure 1 FIG. 1 is a schematic diagram of the structure of a photovoltaic module 100 provided in this embodiment. Figure 2 FIG. 1 is an exploded schematic diagram of a photovoltaic module 100 .

[0039] The photovoltaic assembly 100 provided in this embodiment includes a stacking body 110 and two frames 120, one of the two frames 120 is connected to one side edge of the stacking body 110, and the other frame 120 is connected to the other side edge of the stacking body 110, and a gap 130 for sewage discharge is formed between the two frames 120.

[0040] The stacked body 110 includes a stacked back glass 111, an adhesive film 112, a battery cell 113 and a front glass 114, etc., and also includes components such as a junction box 115 and a bus bar 116 for establishing electrical connections, which are not further described in this embodiment.

[0041] It is understandable that, since the two frames 120 are correspondingly connected to the two side edges of the periphery of the stacked body 110, that is, the remaining multi-side edges of the periphery of the stacked body 110 are exposed, and the exposed multi-side edges correspond to the gap 130. In practical applications, dust falling on the stacked body 110 can leave the photovoltaic module 100 through the exposed edges, that is, leave the photovoltaic module 100 through the gap 130.

[0042] It can be seen that the photovoltaic assembly 100 provided in this embodiment can prevent dust from accumulating on the surface of the stacked body 110 and can achieve self-cleaning of surface dust, thereby avoiding power generation loss and hot spot problems.

[0043] In order to ensure that the two frames 120 stably and reliably support the stacked body 110, the two frames 120 can be connected to the two opposite edges of the stacked body 110. It can be understood that the photovoltaic module 100 in this embodiment does not limit the surface shape of the stacked body 110, that is, does not limit the large surface shape of the stacked body 110.

[0044] Preferably, the stacking body 110 in this embodiment is rectangular, and the two opposite side edges of the stacking body 110 in the width direction are respectively connected to the two frames 120. In other words, the two long sides of the large surface of the stacking body 110 are respectively connected to the two frames 120, that is, the two frames 120 are actually long side frames 120.

[0045] It can be seen that compared with the rectangular frame that surrounds the periphery of the stacking body 110 commonly used in the related art, the photovoltaic component 100 provided in this embodiment is only connected to the long side frame 120 at the two long sides of the stacking body 110, and the two short sides of the stacking body 110 are exposed.

[0046] That is, in this embodiment, two gaps 130 are formed at the corresponding ends of the two frames 120, and the two gaps 130 correspond to the two short sides of the stacking body 110. The dust on the surface of the stacking body 110 can leave through the two exposed short sides of the stacking body 110, avoiding dust accumulation and achieving self-cleaning of surface dust.

[0047] Please refer to Figure 3 , Figure 3 It is a schematic structural diagram showing the connection between the frame 120 and the stacked body 110 .

[0048] The two frames 120 each have a mounting groove 123, which is plugged into one side edge of the stacking body 110. The mounting grooves 123 of the two frames 120 are opposite to each other, that is, the two long sides of the stacking body 110 are respectively embedded in the mounting grooves 123 of the two frames 120, and the two frames 120 provide horizontal support for the stacking body 110.

[0049] In order to protect the stacked body 110 from being damaged by the frame 120, in this embodiment, a sealant 125 is filled between the stacked body 110 and the groove wall of the installation groove 123, and a glue overflow groove 126 is opened on at least one side of the groove wall of the installation groove 123. Preferably, in this embodiment, the sealant 125 is silica gel, and in other embodiments, the material of the sealant 125 can also be adjusted according to actual application conditions.

[0050] In order to increase the friction between adjacent photovoltaic modules 100 when multiple photovoltaic modules 100 are stacked and ensure stable stacking, in this embodiment, the surfaces of the A surfaces of the two frames 120 facing away from the mounting grooves 123 both have concave-convex anti-slip patterns 121 .

[0051] Furthermore, in order to prevent the concave-convex wrinkles on the A surface from scratching the oxide film on the surface of the adjacent stacked frame 120, in this embodiment, the chamfered corners of the raised portion of the concave-convex anti-slip pattern 121 are set so that a smooth transition is made between the broken wall and the side wall of the raised portion of the concave-convex anti-slip pattern 121.

[0052] In order to increase the installation load of the frame 120, in this embodiment, the outer surfaces of the B surfaces of the two frames 120 are provided with concave-convex reinforcement lines 122. In addition, in this embodiment, the thickness of the B surface of the frame 120 is between 1.5 mm and 2.0 mm, which is 1.0 mm to 1.3 mm thick compared to the traditional frame, so that the strength of the frame 120 is further improved, ensuring stable and reliable support for the stacked body 110.

[0053] Please refer to Figure 4 , Figure 4 FIG. 1 is a schematic diagram of a partial structure of the frame 120 .

[0054] In fact, the frame 120 includes an outer plate 1271, a top plate 1272, a middle partition plate 1273, a bottom plate 1274 and an inner plate 1275. The top plate 1272, the middle partition plate 1273 and the bottom plate 1274 are vertically arranged on the same side surface of the outer plate 1271, and are spaced apart and arranged relatively in sequence on the surface of the outer plate 1271. The inner plate 1275 is vertically arranged between the middle partition plate 1273 and the bottom plate 1274, and is opposite to and spaced apart from the outer plate 1271.

[0055] The A side of the frame 120 refers to the side wall of the photovoltaic module 100 that receives sunlight in actual application, that is, the top plate 1272, and the concave-convex anti-slip pattern 121 is arranged on the side surface of the top plate 1272 away from the middle partition plate 1273; the B side of the frame 120 refers to the lateral wall that provides lateral support and heat dissipation for the stacked body 110, that is, the outer plate 1271, and the concave-convex reinforcement pattern 122 is arranged on the side surface of the outer plate 1271 away from the inner plate 1275; the C side of the frame 120 refers to the bottom surface that provides bottom support, that is, the bottom end plate 1274.

[0056] The mounting groove 123 is surrounded by the top plate 1272, the outer plate 1271 and the middle plate 1273, and its opening is away from the outer plate 1271. In this embodiment, the overflow groove 126 is opened on the side surface of the top plate 1272 close to the middle plate 1273. The middle plate 1273, the outer plate 1271, the bottom plate 1274 and the inner plate 1275 also jointly surround the corner code cavity 124. It can be understood that the mounting groove 123 and the corner code cavity 124 both penetrate the frame 120 along the length direction.

[0057] Please refer to Figure 5 , Figure 5 Shown Figure 2 A magnified schematic diagram of region D in the middle.

[0058] In order to prevent the photovoltaic assembly 100 from being damaged by collision during transportation, the photovoltaic assembly 100 provided in this embodiment further includes a corner protector 140. The corner protectors 140 are provided at both ends of the frame 120 in the length direction, and the corner protectors 140 protrude from the end wall of the corresponding end of the frame 120. That is, any frame 120 is located between two corner protectors 140. Specifically, the end of the mounting groove 123 that is the same as the corner code cavity 124 is plugged into one corner protector 140, and the other end of the mounting groove 123 that is the same as the corner code cavity 124 is plugged into the other corner protector 140.

[0059] It is understandable that, since the corner guards 140 are provided at both ends of the frame 120, the corner guards 140 can play an anti-collision effect during the transportation of the photovoltaic assembly 100, preventing the photovoltaic assembly 100 from directly colliding with the outside world. Moreover, after the photovoltaic assembly 100 is installed, the corner guards 140 can also continue to provide protection for the photovoltaic assembly 100.

[0060] Considering the buffering effect of the corner protector 140, it can be made of a material with a certain elastic deformation ability, such as rubber. In another embodiment, the corner protector 140 can also be made of a material with greater rigidity, such as PPO, to enhance the strength of the frame 120. When the PPO material is used, the corner protector 140 also has the advantages of good heat resistance and non-flammability, and has higher safety.

[0061] Please refer to Figure 6 and Figure 7 , Figure 6 FIG. 1 is a schematic diagram of the structure of the corner protector 140 at a first viewing angle. Figure 7 FIG. 1 is a schematic structural diagram of the corner protector 140 at a second viewing angle.

[0062] In this embodiment, the corner protector 140 has a body 144 and a first sealing plug 141, a second sealing plug 142 and a third sealing plug 143 protruding from the same side surface of the body 144. The first sealing plug 141, the second sealing plug 142 and the third sealing plug 143 are arranged at intervals from each other.

[0063] In this embodiment, when the assembly is completed, the first sealing plug 141 is plugged into one end of the mounting groove 123 of the frame 120 to achieve the blocking of the mounting groove 123 and improve the strength of the mounting groove 123. In order to improve the blocking effect, the surface of the first sealing plug 141 is also provided with a step structure corresponding to the overflowing glue groove 126; the second sealing plug 142 is plugged into one end of the corner code cavity 124 of the frame 120 to achieve the blocking of the corner code cavity 124 and improve the strength of the corner code cavity 124; and the width of the bottom end plate 1274 is greater than the width of the middle partition plate 1273, and the middle partition plate 1273, the inner side plate 1275 and the bottom end plate 1274 together form an angle cavity 128 that is narrow at the top and wide at the bottom, and the third sealing plug 143 is plugged into the angle cavity 128 to achieve the blocking of the angle cavity 128 and improve the strength of the bottom end plate 1274.

[0064] It can be seen that in this embodiment, the corner guard 140 is plugged into the installation groove 123, the corner code cavity 124 and the angle cavity 128, thereby achieving comprehensive support for the outer plate 1271, the top plate 1272, the middle partition plate 1273, the bottom plate 1274 and the inner plate 1275 of the frame 120, thereby maximizing the structural strength and stability of the frame 120.

[0065] In another embodiment, according to the actual structure of the frame 120, the corner protector 140 can be plugged into only one of the installation slot 123, the corner code cavity 124 and the angle cavity 128, or it can be plugged into two of the installation slot 123, the corner code cavity 124 and the angle cavity 128, so as to achieve the effect of targeted reinforcement of specific parts.

[0066] It can be understood that, since the first sealing plug 141, the second sealing plug 142 and the third sealing plug 143 are arranged at intervals from each other, during the assembly process, the horizontal gap 1415 between the first sealing plug 141 and the second sealing plug 142 is used to make way for the middle partition plate 1273, and the vertical gap 1425 between the second sealing plug 142 and the third sealing plug 143 is used to make way for the inner side plate 1275. In other words, when the assembly is completed, the middle partition plate 1273 is embedded in the horizontal gap 1415 between the first sealing plug 141 and the second sealing plug 142, and the inner side plate 1275 is embedded in the vertical gap 1425 between the second sealing plug 142 and the third sealing plug 143.

[0067] In order to reduce the overall weight of the photovoltaic assembly 100 , in this embodiment, the second sealing plug 142 and the third sealing plug 143 are both hollow structures.

[0068] In summary, the photovoltaic assembly 100 provided in this embodiment can prevent dust accumulation around the non-stacking body 110, avoid power generation loss and hot spot problems. In addition, the photovoltaic assembly 100 also has the characteristics of greater load, more stable stacking and greater safety.

[0069] In addition, this embodiment further provides a photovoltaic power generation system, which includes the aforementioned photovoltaic assembly 100. The photovoltaic power generation system can be an independent system, a grid-connected system, a hybrid system, etc.

[0070] The photovoltaic power generation system provided in this embodiment is easy to install and compatible with fixed brackets and tracking brackets. In addition, both ends of the components can achieve self-cleaning and have automatic sewage discharge function, which can fundamentally solve the dust accumulation problem and hot spot problem, so that the power generation and service life are significantly improved.

[0071] Benefiting from the beneficial effects of the photovoltaic power generation system, the photovoltaic building integrated with the building (BIPV) also has the characteristics of easy maintenance, high power generation and long service life.

[0072] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A photovoltaic module, characterized in that: The invention comprises a stacking body (110) and two frames (120), one of the two frames (120) being connected to one side edge of the stacking body (110), and the other frame (120) being connected to the other side edge of the stacking body (110), and a gap (130) for sewage discharge is formed between the two frames (120).

2. The photovoltaic module according to claim 1, characterized in that: The two long sides of the stacked body (110) are respectively connected to the two frame frames (120).

3. The photovoltaic module according to claim 1, characterized in that: Surface A of the frame (120) has concave-convex anti-slip patterns (121).

4. The photovoltaic module according to claim 3, characterized in that: The raised portion of the concave-convex anti-slip pattern (121) is rounded.

5. The photovoltaic module according to claim 1, characterized in that: The B surface of the frame (120) has concave-convex reinforcement lines (122), and / or, The thickness of the B surface of the frame (120) is between 1.5 mm and 2.0 mm.

6. The photovoltaic module according to claim 1, characterized in that: The photovoltaic assembly (100) further comprises a corner protector (140), wherein the corner protector (140) is arranged at an end portion of the frame (120) in the length direction, and the corner protector (140) protrudes from an end wall corresponding to one end of the frame (120).

7. The photovoltaic module according to claim 6, characterized in that: The frame (120) comprises a mounting groove (123) and an angle code cavity (124); an angle cavity (128) is formed between the B surface and the C surface of the frame (120); and the corner protector (140) is plugged into at least one of the mounting groove (123), the angle code cavity (124) and the angle cavity (128).

8. The photovoltaic module according to claim 7, characterized in that: The corner protector (140) comprises a body (144), and a first sealing plug (141), a second sealing plug (142) and a third sealing plug (143) protruding from the same side surface of the body (144), wherein the first sealing plug (141), the second sealing plug (142) and the third sealing plug (143) are arranged at intervals from each other; The first sealing plug (141) is plugged into one end of the installation groove (123), the second sealing plug (142) is plugged into one end of the angle code cavity (124), and the first sealing plug (141) is plugged into one end of the angle cavity (128).

9. The photovoltaic module according to claim 1 or 6 or 7 or 8, characterized in that: The frame (120) has a mounting groove (123), the mounting groove (123) is plugged into a side edge of the stacked body (110), and a sealant (125) is filled between the stacked body (110) and the groove wall of the mounting groove (123); A glue overflow groove (126) is provided on at least one side groove wall of the installation groove (123).

10. A photovoltaic power generation system, characterized in that: The photovoltaic module (100) comprises the photovoltaic module (100) according to any one of claims 1 to 9.

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