A photovoltaic module and photovoltaic component

Abstract

This application relates to the field of photovoltaic technology, and more particularly to a photovoltaic module and photovoltaic component. The photovoltaic module includes at least one power-generating panel and a junction box, with the junction box connected to the power-generating panel. The junction box includes an upper box, a middle box, and a lower box. The upper and middle boxes are located on one side of the power-generating panel, and the lower box is located on the other side. The upper box and the middle box are snap-fitted together, and there is a receiving space between the middle and lower boxes for accommodating the light-emitting panel. A portion of the lower box can pass through the light-emitting panel and be fixedly connected to the middle box. This application sets the junction box as a three-section structure of upper, middle, and lower boxes, allowing the upper and middle boxes to snap-fit ​​together, and allowing a portion of the lower box to extend into and be fixedly connected to the middle box, thus concealing the connection structure between the upper, middle, and lower boxes, making the photovoltaic module more aesthetically pleasing and cleaner. The power-generating panel is fixed between the lower and middle boxes, achieving a fixed connection between the junction box and the power-generating panel.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to a photovoltaic module and photovoltaic component. Background Technology

[0002] A junction box is a connector between a photovoltaic module and a control device. It is installed on the back of the photovoltaic module and its main function is to connect the photovoltaic module to an external circuit.

[0003] The junction box houses the main board and wiring components, and waterproofing is typically required for outdoor use. Currently, junction boxes are either single-shell or double-shell structures, with the photovoltaic module junction box fixed to the photovoltaic module using adhesive or exposed screws. This type of junction box design carries the risk of detachment, and the exposed screws affect the appearance. Utility Model Content

[0004] This application provides a photovoltaic module and photovoltaic component, which aims to improve the stability of the connection between the junction box and the light-emitting panel by utilizing a three-section structure.

[0005] This application provides a photovoltaic module, the photovoltaic module comprising:

[0006] At least one power generation panel, the power generation panel being used to receive sunlight and convert light energy into electrical energy;

[0007] A junction box, connected to a power generation panel, is used to collect and output the electrical energy generated by the power generation panel. The junction box includes:

[0008] Upper box, middle box, and lower box;

[0009] The upper box and the middle box are located on one side of the power generation panel, and the lower box is located on the other side of the power generation panel;

[0010] The upper box and the middle box are snapped together, and there is a space between the middle box and the lower box for accommodating the power generation panel. A part of the structure of the lower box can pass through the power generation panel and be fixedly connected to the middle box.

[0011] In one possible design, the middle box body is provided with a bottom wall, and the bottom wall is provided with a first connecting part that protrudes toward the interior of the middle box body;

[0012] The lower housing is provided with a second connecting part that protrudes toward the middle housing, and a portion of the structure of the second connecting part can pass through the power generation panel and connect to the first connecting part.

[0013] The photovoltaic module further includes a first fixing member, which connects the first connecting part and the second connecting part.

[0014] In one possible design, the first connecting part is provided with a receiving groove on the side near the lower housing, and a portion of the structure of the second connecting part can extend through the power generation panel into the receiving groove.

[0015] The first connecting part is provided with a first connecting hole, and the second connecting part is provided with a first connecting groove. The first connecting hole and the first connecting groove are arranged opposite to each other, and a part of the structure of the first fastener can pass through the first connecting hole and connect with the first connecting groove.

[0016] In one possible design, the middle box body is provided with a bottom wall, and the bottom wall is provided with a first connecting part that protrudes toward the interior of the middle box body;

[0017] The lower housing is provided with a second connecting part that protrudes toward the middle housing. A portion of the structure of the second connecting part can extend through the power generation panel into the middle housing and be welded and fixed to the first connecting part.

[0018] In one possible design, the middle box body is provided with a first sidewall, and the first sidewall is provided with a snap-fit ​​portion protruding toward the interior of the middle box body;

[0019] The upper box body is provided with a second side wall, and the second side wall is provided with a mating part;

[0020] When the upper box is closed onto the middle box, the snap-fit ​​part engages with the mating part.

[0021] In one possible design, the photovoltaic module further includes a motherboard, which is mounted within the middle housing;

[0022] The middle box body is provided with a bottom wall, and a third connecting part protruding towards the interior of the middle box body is provided on the bottom wall, and the third connecting part is provided with a second connecting groove;

[0023] The photovoltaic module also includes a second fixing member, a portion of which can pass through the main board and connect to the second connecting slot.

[0024] In one possible design, the first sidewall is further provided with at least a first through hole and a second through hole;

[0025] The photovoltaic module further includes at least a first interface and a second interface, the first interface and the second interface are installed in the middle box, and a portion of the structure of the first interface is exposed through the first through hole, and a portion of the structure of the second interface is exposed through the second through hole;

[0026] The photovoltaic module further includes a first sealing element and a second sealing element, wherein the first sealing element is disposed between the first interface and the first through hole, and the second sealing element is disposed between the second interface and the second through hole.

[0027] In one possible design, the first sidewall is further provided with a groove, and the first through hole and the second through hole are located on the bottom sidewall of the groove;

[0028] The photovoltaic module also includes a cover, which is detachably installed in the groove to cover or open the first interface and the second interface;

[0029] The cover is provided with a first sealing part and a second sealing part, the first sealing part being able to cooperate with the first interface, and the second sealing part being able to cooperate with the second interface.

[0030] In one possible design, the middle housing is provided with a bottom wall, and the bottom wall is provided with a first clearance hole, which is used to prevent the busbar of the power generation panel from extending into the interior of the middle housing and electrically connecting with the main board.

[0031] This application also provides a photovoltaic component, which includes the photovoltaic module described above.

[0032] The beneficial effects of this application embodiment are as follows: The junction box is configured as a three-section structure consisting of an upper box, a middle box, and a lower box. The upper box and the middle box are snap-fitted together, concealing the connection structure between them. A portion of the lower box extends into the middle box and is fixedly connected thereto, further concealing the connection structure between the middle and lower boxes. This makes the junction box of the photovoltaic module more aesthetically pleasing and cleaner. Simultaneously, a portion of the lower box passes through the power generation panel and connects to the middle box, fixing the power generation panel between the lower and middle boxes, thus achieving a fixed connection between the junction box and the power generation panel. Furthermore, the junction box does not require additional connectors or adhesives to connect to the power generation panel, avoiding exposure of connectors and adhesives.

[0033] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0034] Figure 1 This is a structural schematic diagram of the photovoltaic component provided in this application;

[0035] Figure 2 An exploded view of the junction box and part of the power generation panel provided in this application;

[0036] Figure 3 A schematic diagram of the junction box provided in this application;

[0037] Figure 4 This is a structural schematic diagram of the middle box provided in this application;

[0038] Figure 5 for Figure 4 A diagram from another perspective;

[0039] Figure 6 This is a structural schematic diagram of the lower box provided in this application;

[0040] Figure 7 This is a schematic diagram showing the connection between the middle box and the lower box provided in this application;

[0041] Figure 8 for Figure 7 A cross-sectional view;

[0042] Figure 9 This is a schematic diagram showing the connection between the middle housing and the electrical components provided in this application;

[0043] Figure 10 for Figure 9 A cross-sectional view;

[0044] Figure 11 This is a structural schematic diagram of the upper box provided in this application;

[0045] Figure 12 This is a cross-sectional view of the connection between the upper box and the middle box provided in this application;

[0046] Figure 13 A schematic diagram of a portion of the structure of the junction box provided in this application;

[0047] Figure 14 A schematic diagram showing the cable connection between the junction box and the electrical load provided in this application;

[0048] Figure 15 A cross-sectional schematic diagram showing the mating of the first interface and the first through hole provided in this application;

[0049] Figure 16 A cross-sectional view showing the mating of the second interface and the second through hole provided in this application;

[0050] Figure 17 This is a structural schematic diagram of the cover provided in this application.

[0051] Figure label:

[0052] 1- Junction box;

[0053] 11-Upper box body;

[0054] 11a - Second sidewall;

[0055] 111-Coordination Department;

[0056] 12-Middle box;

[0057] 12a - Bottom wall;

[0058] 121 - First connecting part;

[0059] 121a - Reception slot;

[0060] 121b - First connecting hole;

[0061] 12b - First sidewall;

[0062] 122-Connecting part;

[0063] 123 - Third connecting part;

[0064] 123a - Second connecting groove;

[0065] 124 - First through hole;

[0066] 125 - Second through hole;

[0067] 126 - Groove;

[0068] 127 - First clearance hole;

[0069] 128 - Connection hole;

[0070] 129 - Second clearance hole;

[0071] 12c - Reinforcing rib;

[0072] 13-Lower box;

[0073] 13a - Accommodation space;

[0074] 131 - Second connecting part;

[0075] 131a - First connecting slot;

[0076] 132 - Third clearance hole;

[0077] 14-First fastener;

[0078] 15-Electrical components;

[0079] 151 - Motherboard;

[0080] 152 - First Interface;

[0081] 153 - Second Interface;

[0082] 154 - Indicator Light;

[0083] 16-Second fastener;

[0084] 17 - First seal;

[0085] 18 - Second seal;

[0086] 19-Covering parts;

[0087] 191 - First sealing part;

[0088] 192 - Second sealing part;

[0089] 193 - Connecting part;

[0090] 193a - Coordination segment;

[0091] 193b - Limiting Segment;

[0092] 2- Illuminated panel;

[0093] 21-Busbar;

[0094] 3-First cable;

[0095] 4-Second cable.

[0096] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0097] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0098] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0099] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0100] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0101] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0102] Figure 1 This is a schematic diagram of a photovoltaic (PV) component. The PV component includes a PV module, which includes at least one power generation panel 2 and a junction box 1. The power generation panel is used to receive sunlight and convert light energy into electrical energy. The junction box 1 is connected to the power generation panel and is used to collect and output the electrical energy generated by the power generation panel, and to lead out the current generated by the power generation panel and introduce it into the electrical load.

[0103] Figure 2 This is an exploded schematic diagram of junction box 1 and part of the generator panel 2. Figure 3 This is a schematic diagram of junction box 1. Please refer to it. Figure 2 and Figure 3 The junction box 1 includes an upper box 11, a middle box 12, a lower box 13, and an electrical assembly 15 connected to each other. The upper box 11 and the middle box 12 are connected to form a receiving cavity, and the electrical assembly 15 is installed in the receiving cavity. The electrical assembly 15 is used to electrically connect the generator panel 2 and the electrical load. There is a receiving space 13a between the middle box 12 and the lower box 13, which is used to receive the generator panel 2. The upper box 11 and the middle box 12 are snap-fitted together, and part of the structure of the lower box 13 can pass through the generator panel 2 and be fixedly connected to the middle box 12.

[0104] In this embodiment, the junction box 1 is configured as a three-section structure consisting of an upper box 11, a middle box 12, and a lower box 13. The upper box 11 and the middle box 12 are snap-fitted together, concealing the connection structure between them. A portion of the lower box 13 extends into the middle box 12 and is fixedly connected thereto, further concealing the connection structure between the middle box 12 and the lower box 13. This makes the junction box 1 more aesthetically pleasing and cleaner. Simultaneously, a portion of the lower box 13 passes through the generator panel 2 and connects to the middle box 12, fixing the generator panel 2 between the lower box 13 and the middle box 12, thus achieving a fixed connection between the junction box 1 and the generator panel 2. Furthermore, the junction box 1 does not require additional connectors or adhesives to connect to the generator panel 2, avoiding the exposure of connectors and adhesives.

[0105] Figure 4 This is a structural schematic diagram of the middle box 12. Figure 5 for Figure 4 A diagram from another perspective, Figure 6This is a structural diagram of the lower box 13. Figure 7 This is a schematic diagram showing the connection between the middle box 12 and the lower box 13. Figure 8 for Figure 7 Please refer to the sectional view diagram. Figures 4 to 8 The middle box 12 is provided with a bottom wall 12a, and a first connecting part 121 protruding towards the interior of the middle box 12 is provided on the bottom wall 12a. The lower box 13 is provided with a second connecting part 131 protruding towards the middle box 12. Part of the structure of the second connecting part 131 can pass through the generator panel 2 and connect to the first connecting part 121. The junction box 1 also includes a first fixing member 14, which connects the first connecting part 121 and the second connecting part 131.

[0106] In this embodiment, the second connecting part 131 of the lower box 13 can extend into the middle box 12, so that the first fixing member 14 can connect the first connecting part 121 and the second connecting part 131 inside the middle box 12. This allows the first fixing member 14 to be fixedly connected to the middle box 12 and the lower box 13 inside the middle box 12, thus hiding the first fixing member 14 inside the middle box 12 and preventing the first fixing member 14 from being exposed, ensuring that the junction box 1 has a neat appearance.

[0107] Furthermore, the first connecting part 121 is a protruding structure on the middle box 12, and the second connecting part 131 is a protruding structure on the lower box 13. The first fixing member 14 connects the first connecting part 121 and the second connecting part 131 to fix the middle box 12 and the lower box 13, thereby improving the connection strength between the middle box 12 and the lower box 13 and ensuring the stability of the connection between the lower box 13, the power generation panel 2 and the lower box 13.

[0108] Please continue to refer to this. Figure 4 The middle box 12 is also provided with a reinforcing rib 12c, which is connected to the first connecting part 121 to enhance the structural strength of the first connecting part 121, thereby further improving the stability of the connection between the lower box 13, the power generation panel 2 and the lower box 13.

[0109] Please continue to refer to the reference. Figures 4 to 8 The first connecting part 121 has a receiving groove 121a on the side near the lower housing 13, and a portion of the structure of the second connecting part 131 can extend through the power generation panel 2 into the receiving groove 121a. The first connecting part 121 has a first connecting hole 121b, and the second connecting part 131 has a first connecting groove 131a. The first connecting hole 121b and the first connecting groove 131a are opposite to each other, and a portion of the fastener can pass through the first connecting hole 121b and connect to the first connecting groove 131a.

[0110] Specifically, the first connecting portion 121 can be a columnar structure protruding inward along the bottom wall 12a of the middle box 12. A receiving groove 121a is provided on the bottom wall 12a of the middle box 12 opposite to the first connecting portion 121. The receiving groove 121a extends toward the side of the first connecting portion 121, and the first connecting hole 121b passes through the receiving groove 121a. The second connecting portion 131 can be a columnar structure protruding along the side of the lower box 13 near the middle box 12. A first connecting groove 131a is provided in the second connecting portion 131, and the opening of the first connecting groove 131a is opposite to the opening of the receiving groove 121a.

[0111] The inner wall of the first connecting hole 121b and the inner wall of the first connecting groove 131a are both provided with threads. The first fixing member 14 can be a screw, stud, or other component. One end of the first fixing member 14 passes through the first connecting hole 121b and is threadedly connected to the first connecting groove 131a.

[0112] In this embodiment, a receiving groove 121a is provided on the bottom wall 12a of the middle box 12, and a portion of the structure of the second connecting part 131 extends into the receiving groove 121a, thus concealing the second connecting part 131 and preventing it from being exposed, ensuring a neat appearance for the junction box 1. Simultaneously, the receiving groove 121a can position the second connecting part 131, thereby positioning the first connecting part 121 and the second connecting part 131, enabling the first fixing member 14 to quickly connect the second connecting part 131 and the first connecting part 121.

[0113] In some embodiments, at least three first connecting portions 121 are provided, such as three, four, or five. Correspondingly, at least three second connecting portions 131 are provided, such as three, four, or five. Correspondingly, at least three first fixing members 14 are provided, such as three, four, or five. The specific number of first connecting portions 121, second connecting portions 131, and first fixing members 14 can be set according to actual conditions, and this embodiment does not limit this.

[0114] This embodiment uses the example of setting three of each of the first connecting part 121, the second connecting part 131, and the first fixing member 14 to ensure a stable connection between the middle box 12 and the lower box 13 while reducing the space occupied by the middle box 12.

[0115] Alternatively, in some embodiments, a portion of the lower housing 13 may extend into the middle housing 12 and be welded and fixed thereto. Specifically, the middle housing 12 is provided with a bottom wall 12a, on which a first connecting portion 121 protrudes toward the interior of the middle housing 12. The lower housing 13 is provided with a second connecting portion 131 protruding toward the middle housing 12. A portion of the second connecting portion 131 can pass through the power generation panel 2 and extend into the middle housing 12 to be welded and fixed thereto.

[0116] In this embodiment, a portion of the structure of the second connecting part 131 extends into the middle box 12 and is welded to the first connecting part 121 to achieve a fixed connection between the middle box 12 and the lower box 13. At the same time, the connection position between the second connecting part 131 and the first connecting part 121 is hidden inside the middle box 12, ensuring that the junction box 1 has a neat appearance.

[0117] In this embodiment, at least three first connecting parts 121 are provided, and correspondingly at least three second connecting parts 131 are provided, so as to ensure that the middle box 12 and the lower box 13 are firmly connected while reducing the space occupied by the middle box 12.

[0118] Figure 9 This is a schematic diagram showing the connection between the middle box 12 and the electrical assembly 15. Figure 10 for Figure 9 Please refer to the sectional view diagram. Figure 7 , Figure 9 and Figure 10 The electrical component 15 also includes a main board 151, which is installed inside the middle housing 12. The middle housing 12 has a bottom wall 12a, on which a third connecting portion 123 protrudes towards the interior of the middle housing 12, and the third connecting portion 123 has a second connecting groove 123a. The junction box 1 also includes a second fixing member 16, a portion of which can pass through the main board 151 and connect to the second connecting groove 123a.

[0119] Specifically, the third connecting part 123 can be a columnar structure protruding inward along the bottom wall 12a of the middle box 12. The second connecting groove 123a is formed on the third connecting part 123, and the groove opening of the second connecting groove 123a is opposite to the main board 151. The inner sidewall of the second connecting groove 123a is provided with threads. The second fixing member 16 can be a screw, stud, or other component. One end of the second fixing member 16 passes through the main board 151 and is threadedly connected to the second connecting groove 123a.

[0120] In this embodiment, the third connecting part 123 is a protruding structure on the middle box 12. The second fixing member 16 is connected to the third connecting part 123 through the main board 151, fixing the main board 151 inside the middle box 12 and improving the connection strength between the main board 151 and the middle box 12. At the same time, the third connecting part 123 is at a certain height from the bottom wall 12a, which restricts the second fixing member 16 from penetrating the bottom wall 12a and from penetrating the bottom wall 12a to connect with the power generation panel 2, thereby preventing damage to the structure of the power generation panel 2.

[0121] Please refer to the reference. Figure 2 and Figure 4 The bottom wall 12a is provided with a first clearance hole 127, which is used to allow the busbar 21 of the power generation panel 2 to extend into the interior of the middle box 12 and connect to the main board 151. That is to say, the busbar 21 leading out from the power generation panel 2 between the lower box 13 and the middle box 12 can enter the middle box 12 through the first clearance hole 127 and connect to the electrical components 15 inside the middle box 12.

[0122] Understandably, two first clearance holes 127 can be provided on the bottom wall 12a, and the positive and negative busbars 21 led out from the power generation panel 2 can enter the interior of the middle box 12 according to the corresponding first clearance holes 127.

[0123] Please refer to the reference. Figure 3 , Figure 4 and Figure 6 The bottom wall 12a of the middle box 12 is also provided with a second clearance hole 129, and the lower box 13 is also provided with a third clearance hole 132. Part of the structure of the indicator light 154 of the electrical component 15 can be exposed through the second clearance hole 129 and the third clearance hole 132 so that the staff can check the working status of the photovoltaic module according to the indicator light 154.

[0124] Figure 11 This is a structural schematic diagram of the upper box 11. Figure 12 This is a cross-sectional view showing the connection between the upper box 11 and the middle box 12. Please refer to the reference. Figure 4 , Figure 11 and Figure 12 The middle box 12 is provided with a first side wall 12b connected to the bottom wall 12a, and the first side wall 12b is provided with a snap-fit ​​part 122 protruding towards the interior of the middle box 12. The upper box 11 is provided with a second side wall 11a, and the second side wall 11a is provided with a mating part 111. When the upper box 11 is closed on the middle box 12, the snap-fit ​​part 122 and the mating part 111 snap-fit ​​together.

[0125] In this embodiment, when the upper box 11 covers the middle box 12, the second side wall 11a extends into the inner side of the first side wall 12b, and the snap-fit ​​part 122 and the mating part 111 are arranged opposite to each other, so that the snap-fit ​​part 122 can extend into the mating part 111. The upper box 11 and the middle box 12 are connected through the engagement of the snap-fit ​​part 122 and the mating part 111.

[0126] In this embodiment, the snap-fit ​​part 122 of the middle box 12 is located inside the middle box 12, and the second side wall 11a of the upper box 11 extends into the interior of the middle box 12, so that the snap-fit ​​part 122 and the mating part 111 are mated, thus hiding the connection position of the upper box 11 and the middle box 12 and ensuring that the junction box 1 has a neat appearance.

[0127] In some embodiments, the mating part 111 can be a hole structure formed in the second side wall 11a, or the mating part 111 can be a groove structure formed in the second side wall 11a. The specific configuration can be set according to the actual situation, and this embodiment does not limit it here.

[0128] In some embodiments, at least four snap-fit ​​portions 122 are provided, such as four, six, eight, etc. Correspondingly, at least four mating portions 111 are provided, such as four, six, eight, etc. The specific number of snap-fit ​​portions 122 and mating portions 111 can be set according to the actual situation, and this embodiment does not limit it.

[0129] This embodiment uses six snap-fit ​​parts 122 and six mating parts 111 as an example to ensure the stability of the connection between the upper box 11 and the middle box 12.

[0130] Figure 13 This is a schematic diagram of part of the structure of junction box 1. Please refer to the reference. Figure 4 and Figure 13 The first sidewall 12b is also provided with at least a first through hole 124 and a second through hole 125. The electrical component 15 also includes at least a first interface 152 and a second interface 153 connected to the motherboard 151. The first interface 152 and the second interface 153 are installed inside the middle box 12, and part of the structure of the first interface 152 is exposed through the first through hole 124, and part of the structure of the second interface 153 is exposed through the second through hole 125.

[0131] The first interface 152 and the second interface 153 can have different models. For example, the first interface 152 can be USB-C, and the second interface 153 can be USB-A. Alternatively, the first interface 152 and the second interface 153 can have the same model. For example, both the first interface 152 and the second interface 153 can be USB-C. The specific configuration can be determined according to the actual situation, and this embodiment does not impose any limitations.

[0132] Understandably, the first sidewall 12b may also be provided with a third through hole, a fourth through hole, etc., and the electrical component 15 may also include a third interface, a fourth interface, etc., with the third interface partially exposed through the third through hole, and the fourth interface partially exposed through the fourth through hole. The number of through holes and interfaces on the first sidewall 12b can be set according to the actual situation, and this embodiment does not limit it.

[0133] Figure 14 This diagram illustrates the cable connection between junction box 1 and the electrical load, which includes first cable 3 and second cable 4. Please refer to the reference diagram. Figure 13 and Figure 14 When the junction box 1 is connected to the electrical load, the first cable 3 is connected to the first interface 152 and the second cable 4 is connected to the second interface 153, so that the junction box 1 can conduct the current on the generator panel 2 into the electrical load.

[0134] In this embodiment, the junction box 1 also needs to be potted with adhesive. The interior of the middle box 12 needs to be filled with waterproof silicone, and the waterproof silicone needs to cover the electrical components 15 to ensure the sealing effect of the junction box 1.

[0135] Figure 15 This is a cross-sectional view showing the mating of the first interface 152 and the first through hole 124. Figure 16 This is a cross-sectional view showing the mating of the second interface 153 and the second through hole 125. Please refer to the following diagram. Figure 13 , Figure 15 and Figure 16 To reduce the leakage of waterproof silicone from the gap between the first interface 152 and the first through hole 124 and the gap between the second interface 153 and the second through hole 125, the junction box 1 also includes a first sealing element 17 and a second sealing element 18. The first sealing element 17 is disposed between the first interface 152 and the first through hole 124, and the second sealing element 18 is disposed between the second interface 153 and the second through hole 125.

[0136] In this embodiment, a first sealing element 17 is provided between the first interface 152 and the first through hole 124 to seal the gap between the first interface 152 and the first through hole 124, thereby reducing the risk of waterproof silicone injected into the middle box 12 overflowing from the gap between the first interface 152 and the first through hole 124, and thus ensuring the sealing effect of the junction box 1. Similarly, a second sealing element 18 is provided between the second interface 153 and the second through hole 125 to seal the gap between the second interface 153 and the second through hole 125, thereby reducing the risk of waterproof silicone injected into the middle box 12 overflowing from the gap between the second interface 153 and the second through hole 125, and thus ensuring the sealing effect of the junction box 1.

[0137] In some embodiments, the first seal 17 can be a silicone ring, and the second seal 18 can be a silicone ring.

[0138] It is understood that the electrical component 15 may also include devices such as diodes, connectors, and terminals, which can be set according to the actual situation. This embodiment does not limit this.

[0139] Please continue to refer to this. Figure 13 The first sidewall 12b is also provided with a groove 126, and the first through hole 124 and the second through hole 125 are located on the bottom sidewall of the groove 126. Please refer to the reference. Figure 3 and Figure 14 The junction box 1 also includes a cover 19, which is detachably mounted in the recess 126 to cover or open the first interface 152 and the second interface 153.

[0140] In other words, when the electrical load is electrically connected to the junction box 1, the cover 19 can be opened to disengage it from the recess 126, thereby opening the first interface 152 and the second interface 153. The first cable 3 of the electrical load can then be connected to the first interface 152, and the second cable 4 can be connected to the second interface 153. When the electrical load is not electrically connected to the junction box 1, the cover 19 can be closed and fastened into the recess 126 to seal the first interface 152 and the second interface 153, reducing the risk of dust and liquid entering the first interface 152 and the second interface 153.

[0141] Figure 17 This is a structural schematic diagram of the cover 19. Please refer to the reference diagram. Figures 15 to 17 The cover 19 is provided with a first sealing part 191 and a second sealing part 192. The first sealing part 191 can cooperate with the first interface 152, and the second sealing part 192 can cooperate with the second interface 153.

[0142] In other words, when junction box 1 is not electrically connected to the electrical load, cover 19 seals the groove 126. At this time, the first sealing part 191 is inserted into the first interface 152, and the second sealing part 192 is inserted into the second interface 153, further improving the sealing effect on the first interface 152 and the second interface 153. When junction box 1 is electrically connected to the electrical load, cover 19 can be opened. At this time, the first sealing part 191 is disengaged from the first interface 152, and the second sealing part 192 is disengaged from the second interface 153. The first cable 3 and the second cable 4 of the electrical load can be inserted into the first interface 152 and the second interface 153 respectively.

[0143] Please continue to refer to this. Figure 17The cover 19 also includes a connecting part 193. The first side wall 12b is provided with a connecting hole 128. The connecting part 193 cooperates with the connecting hole 128. Furthermore, the connecting part 193 can move relative to the connecting hole 128 so that the connecting part 193 remains in cooperation with the connecting hole 128 when the cover 19 is fastened in the groove 126 or when the cover 19 is removed from the groove 126. This ensures that when the cover 19 is removed from the groove 126, it can still be hung on the first side wall 12b through the connecting part 193 without falling off, making it convenient for workers to use.

[0144] Specifically, the connecting part 193 can be a cylindrical structure. The connecting part 193 is provided with a mating section 193a and a limiting section 193b. The diameter of the mating section 193a is smaller than the diameter of the connecting hole 128, and the diameter of the limiting section 193b is larger than the diameter of the connecting hole 128. When assembling the connecting part 193 and the connecting hole 128, the inner wall of the connecting hole 128 presses against the limiting section 193b, causing the limiting section 193b to pass through the connecting hole 128, and the mating section 193a mates with the connecting hole 128. Because the diameter of the limiting section 193b is larger than the diameter of the connecting hole 128, the limiting section 193b can prevent the mating section 193a from disengaging from the connecting hole 128, thus ensuring that the cover 19 always remains connected to the first sidewall 12b.

[0145] In some embodiments, the cover 19 can be made of an elastic material to improve the sealing performance of the first sealing part 191 to the first interface 152, improve the sealing performance of the second sealing part 192 to the second interface 153, and prevent the cover 19 from damaging the first interface 152 and the second interface 153. The cover 19 can be made of a dustproof silicone cover or other suitable materials. The specific material of the cover 19 can be set according to the actual situation, and this embodiment does not limit it.

[0146] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A photovoltaic module, characterized by, include: At least one power generation panel (2) is used to receive sunlight and convert light energy into electrical energy; A junction box (1) is connected to the power generation panel (2). The junction box (1) is used to collect and output the electrical energy generated by the power generation panel (2). The junction box (1) includes: Upper box (11), middle box (12) and lower box (13); The upper box (11) and the middle box (12) are located on one side of the power generation panel (2), and the lower box (13) is located on the other side of the power generation panel (2). The upper box (11) is snapped into the middle box (12), and there is a receiving space (13a) between the middle box (12) and the lower box (13) for accommodating the power generation panel (2). Part of the structure of the lower box (13) can pass through the power generation panel (2) and be fixedly connected to the middle box (12).

2. The photovoltaic module of claim 1, wherein, The middle box (12) is provided with a bottom wall (12a), and a first connecting part (121) protruding towards the interior of the middle box (12) is provided on the bottom wall (12a). The lower box (13) is provided with a second connecting part (131) protruding toward the middle box (12), and part of the structure of the second connecting part (131) can pass through the power generation panel (2) and connect with the first connecting part (121); The photovoltaic module further includes a first fixing member (14), which connects the first connecting part (121) and the second connecting part (131).

3. The photovoltaic module of claim 2, wherein, The first connecting part (121) is provided with a receiving groove (121a) on the side near the lower box (13), and a part of the structure of the second connecting part (131) can extend into the receiving groove (121a) through the power generation panel (2). The first connecting part (121) is provided with a first connecting hole (121b), and the second connecting part (131) is provided with a first connecting groove (131a). The first connecting hole (121b) and the first connecting groove (131a) are arranged opposite to each other. Part of the structure of the first fastener (14) can pass through the first connecting hole (121b) and connect with the first connecting groove (131a).

4. The photovoltaic module according to claim 1, characterized in that, The middle box (12) is provided with a bottom wall (12a), and a first connecting part (121) protruding towards the interior of the middle box (12) is provided on the bottom wall (12a). The lower box (13) is provided with a second connecting part (131) protruding toward the middle box (12). Part of the structure of the second connecting part (131) can pass through the power generation panel (2) and extend into the middle box (12) to be welded and fixed to the first connecting part (121).

5. The photovoltaic module according to claim 1, characterized in that, The middle box (12) is provided with a first side wall (12b), and the first side wall (12b) is provided with a snap-fit ​​part (122) protruding towards the inside of the middle box (12). The upper box body (11) is provided with a second side wall (11a), and the second side wall (11a) is provided with a mating part (111). When the upper box (11) covers the middle box (12), the snap-fit ​​part (122) engages with the mating part (111).

6. The photovoltaic module according to any one of claims 1 to 5, characterized in that, The photovoltaic module also includes a main board (151), which is installed inside the middle box (12); The middle box (12) is provided with a bottom wall (12a), and a third connecting part (123) protruding towards the interior of the middle box (12) is provided on the bottom wall (12a), and the third connecting part (123) is provided with a second connecting groove (123a). The photovoltaic module also includes a second fixing member (16), a portion of which is able to pass through the main board (151) and connect to the second connecting groove (123a).

7. The photovoltaic module according to claim 5, characterized in that, The first sidewall (12b) is also provided with at least a first through hole (124) and a second through hole (125); The photovoltaic module also includes at least a first interface (152) and a second interface (153), the first interface (152) and the second interface (153) are installed in the middle box (12), and a part of the structure of the first interface (152) is exposed through the first through hole (124), and a part of the structure of the second interface (153) is exposed through the second through hole (125); The photovoltaic module further includes a first sealing element (17) and a second sealing element (18), wherein the first sealing element (17) is disposed between the first interface (152) and the first through hole (124), and the second sealing element (18) is disposed between the second interface (153) and the second through hole (125).

8. The photovoltaic module according to claim 7, characterized in that, The first sidewall (12b) is also provided with a groove (126), and the first through hole (124) and the second through hole (125) are located on the bottom sidewall of the groove (126); The photovoltaic module also includes a cover (19), which is detachably installed in the groove (126) to cover or open the first interface (152) and the second interface (153). The cover (19) is provided with a first sealing part (191) and a second sealing part (192). The first sealing part (191) can cooperate with the first interface (152), and the second sealing part (192) can cooperate with the second interface (153).

9. The photovoltaic module according to any one of claims 1 to 5, characterized in that, The middle box (12) is provided with a bottom wall (12a), and the bottom wall (12a) is provided with a first clearance hole (127). The first clearance hole (127) is used to avoid the busbar (21) of the power generation panel (2) from extending into the interior of the middle box (12) and electrically connecting with the main board (151).

10. A photovoltaic component, characterized in that, The photovoltaic component includes the photovoltaic module as described in any one of claims 1 to 9.

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