Photovoltaic module junction box

Abstract

The utility model belongs to the field of photovoltaic technology, and discloses a photovoltaic module junction box, which comprises a box body. One side face of the box body extends in the first direction and is configured to be connected to the photovoltaic module, a leading-out wire of the bus bar penetrates out of the photovoltaic module, the box body is provided with a wiring groove penetrating in the second direction, one end of the wiring groove is close to the photovoltaic module in the second direction, and the open end of the wiring groove is arranged at the top end of the box body. The outgoing line can penetrate through the wiring groove through the open end, and an included angle is formed between the second direction and the first direction. Through the above arrangement, the photovoltaic module junction box provided by the utility model can facilitate the arrangement of a leading-out wire, and improves the operation efficiency and the gluing effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic technology field especially relates to a photovoltaic module junction box. BACKGROUND

[0002] With the rise of building integrated photovoltaics, photovoltaic applications in the scene of building more and more. Photovoltaic module junction box is the connector between photovoltaic module and control device, its main role is to connect photovoltaic module and external circuit.

[0003] As shown in Figure 1 And Figure 2 As shown in the process of installing photovoltaic module 100 and junction box, because the design size of the mounting surface on the junction box is small, so the area left for the mounting surface to glue is not much. Moreover, the junction box is provided with a through hole for threading the lead-out wire 200 of the busbar, and the mounting surface is easy to block the through hole during the gluing process, thereby affecting the threading of the lead-out wire 200. Therefore, the operator generally uses the segmented gluing method to apply glue to the mounting surface, and the segmented gluing will cause the through hole to have no glue applied near the hole opening, so that a gap is left between the mounting surface and the photovoltaic module 200, thereby causing the subsequent potting glue to leak and requiring a secondary gluing operation, thereby affecting the work efficiency and gluing effect.

[0004] Therefore, there is an urgent need for a photovoltaic module junction box to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a photovoltaic module junction box, which can facilitate the layout of the lead-out wire and improve the work efficiency and gluing effect.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A photovoltaic module junction box comprises:

[0008] A box body, one side of the box body is arranged along a first direction and is configured to be connected to a photovoltaic module, a lead-out wire of a busbar is threaded out of the photovoltaic module, the box body is provided with a wiring slot arranged along a second direction, along the second direction, one end of the wiring slot is arranged close to the photovoltaic module, and the opening end of the wiring slot is arranged at the top end of the box body, the lead-out wire can be threaded in the wiring slot through the opening end, and the second direction is arranged at an angle with the first direction.

[0009] Optionally, when the box body is connected to the photovoltaic module, the position of the groove bottom of the wiring slot is lower than the position of the lead-out wire threaded out of the photovoltaic module.

[0010] Optionally, multiple wiring channels and multiple lead wires are provided, with the multiple wiring channels arranged at intervals on the box body and corresponding one-to-one with the multiple lead wires.

[0011] Optionally, the housing is provided with a connection portion for connecting the photovoltaic module, and along the second direction, the cross-sectional area of ​​the connection portion is larger than the cross-sectional area of ​​the wiring groove.

[0012] Optionally, along the second direction, the cross-section of the box body is U-shaped.

[0013] Optionally, when the lead wire is laid in the wiring groove, the adhesive can fill the wiring groove, and the inner wall of the wiring groove is provided with a buffer part.

[0014] Optionally, a stop is movably installed at the other end of the wiring channel, and the inner wall of the wiring channel and the stop form an injection groove.

[0015] Optionally, a sealing element is provided between the inner wall of the wiring groove and the stop member.

[0016] Optionally, the cross-sectional area of ​​the wiring channel gradually decreases from one end to the other.

[0017] Optionally, the box body has a cubic structure.

[0018] The beneficial effects of this utility model are:

[0019] This utility model provides a photovoltaic module junction box, which includes a box body. One side of the box body extends along a first direction and is configured to connect to the photovoltaic module, ensuring a close fit between the box body and the photovoltaic module, making installation and connection more convenient. The busbar leads pass through the photovoltaic module. The box body has a wiring groove extending along a second direction to facilitate the laying of the leads and prevent bending of the leads within the groove. Along the second direction, one end of the wiring groove is positioned close to the photovoltaic module so that the leads passing through the photovoltaic module can be directly inserted into the wiring groove through the open end. The open end of the wiring groove is located at the top of the box body, allowing operators to directly place the leads into the wiring groove from the open end at the top of the box body. This not only facilitates the laying of the leads but also eliminates the need for segmented adhesive application; the adhesive can be applied directly to the connection between the box body and the photovoltaic module in one go, thereby improving work efficiency and adhesive application effect. Through the above design, the photovoltaic module junction box of this application facilitates the laying of leads and improves work efficiency and adhesive application effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of existing photovoltaic modules and leads;

[0021] Figure 2 This is a schematic diagram of the existing junction box connected to the photovoltaic module;

[0022] Figure 3 This is a schematic diagram of the photovoltaic module junction box provided in an embodiment of the present utility model;

[0023] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0024] Figure 5 This is a side view of the box body provided in an embodiment of the present utility model;

[0025] Figure 6 This is a side view of the box body provided in another embodiment of the present invention.

[0026] In the picture:

[0027] 100. Photovoltaic module; 200. Lead wire; 1. Box; 11. Wiring trough; 111. Open end; 12. Connecting part. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] With the rise of building-integrated photovoltaics (BIPV), photovoltaics are being applied to more and more building applications. A photovoltaic module junction box is a connector between the photovoltaic module 100 and the control device; its main function is to connect the photovoltaic module 100 to external circuits.

[0033] like Figure 1 and Figure 2 As shown, during the installation of the photovoltaic module 100 and the junction box, the mounting surface of the junction box has a small design size, leaving limited area for applying adhesive. Furthermore, the junction box has perforations for the lead wires 200 to pass through the busbars. During adhesive application, the adhesive can easily clog these perforations, affecting the insertion of the lead wires 200. Therefore, workers typically apply adhesive to the mounting surface in sections. However, this sectioning method results in insufficient adhesive near the perforations, leaving gaps between the mounting surface and the photovoltaic module 100. This can lead to adhesive leakage during subsequent potting, requiring a second application, thus impacting work efficiency and adhesive application effectiveness.

[0034] Therefore, there is an urgent need for a photovoltaic module junction box to solve the above-mentioned technical problems.

[0035] like Figures 3-6 As shown, this embodiment provides a photovoltaic module junction box, which includes a box body 1. One side of the box body 1 extends along a first direction and is configured to be connected to the photovoltaic module 100. The lead wire 200 of the busbar passes through the photovoltaic module 100. The box body 1 has a wiring groove 11 that extends along a second direction. Along the second direction, one end of the wiring groove 11 is located close to the photovoltaic module 100. The opening end 111 of the wiring groove 11 is located at the top of the box body 1. The lead wire 200 can pass through the opening end 111 and pass through the wiring groove 11. The second direction is set at an angle to the first direction.

[0036] In this embodiment, one side of the housing 1 extends along a first direction and is configured to connect to the photovoltaic module 100, ensuring a close fit between the housing 1 and the photovoltaic module 100 at the connection point, making installation and connection more convenient. The busbar lead wire 200 passes through the photovoltaic module 100. The housing 1 has a wiring groove 11 that runs through it along a second direction. The wiring groove 11 facilitates the laying of the lead wire 200 and prevents the lead wire 200 from bending in the wiring groove 11. Along the second direction, one end of the wiring groove 11 is located close to the photovoltaic module 100 so that the lead wire 200 passing through the photovoltaic module 100 can directly pass through the opening end 111 into the wiring groove 11. The opening end 111 of the wiring trough 11 is located at the top of the box body 1, allowing operators to directly place the lead wire 200 into the wiring trough 11 from the opening end 111 at the top of the box body 1. This not only facilitates the laying of the lead wire 200 but also eliminates the need for segmented adhesive application; the adhesive can be applied directly and in one go at the connection between the box body 1 and the photovoltaic module 100, thereby improving work efficiency and adhesive application effect. Through the above design, the photovoltaic module junction box of this application facilitates the laying of the lead wire 200 and improves work efficiency and adhesive application effect.

[0037] It should be noted that in this embodiment, the first direction and the second direction are horizontal directions that are perpendicular to each other. In other embodiments, the first direction and the second direction can be adjusted according to the installation requirements between the photovoltaic module 100 and the box 1, which will not be explained in detail here.

[0038] The specific structure of the photovoltaic module junction box is explained below:

[0039] Specifically, such as Figures 3-6 As shown, when the box 1 is connected to the photovoltaic module 100, the bottom of the wiring groove 11 is lower than the position where the lead wire 200 passes through from one side of the photovoltaic module 100, which ensures that the lead wire 200 can smoothly enter the wiring groove 11, improves the convenience of operation, and ensures that the lead wire 200 will not be obstructed due to improper position.

[0040] More specifically, multiple wiring channels 11 and multiple lead wires 200 are provided. Multiple wiring channels 11 are arranged at intervals on the box body 1 and are set one-to-one with multiple lead wires 200, so that the junction box can be used for photovoltaic modules 100 of different quantities and specifications, thereby improving the versatility and flexibility of the junction box.

[0041] It should be noted that those skilled in the art are familiar with the specific structure and working principle of the photovoltaic module 100, and therefore will not elaborate further here.

[0042] Specifically, the housing 1 is provided with a connecting portion 12 for connecting the photovoltaic module 100. Along the second direction, the cross-sectional area of ​​the connecting portion 12 is larger than the cross-sectional area of ​​the wiring groove 11. Through the above arrangement, a larger contact area is provided at the connection between the housing 1 and the photovoltaic module 100, thereby enhancing the connection stability between the junction box and the photovoltaic module 100. In this embodiment, the connecting portion 12 is a side surface of the housing 1 extending along the first direction, which is used to adhere to the photovoltaic module 100.

[0043] Specifically, such as Figure 6 As shown, along the second direction, the cross-section of the box 1 is U-shaped, that is, the box 1 has only one wiring groove 11, which not only facilitates the processing and manufacturing of the box 1, but also makes the width of the wiring groove 11 wider, thereby facilitating the arrangement of the lead wire 200 and the filling of glue.

[0044] Specifically, when the lead wire 200 is laid in the wiring groove 11, the adhesive can fill the wiring groove 11. The inner wall of the wiring groove 11 is provided with a buffer part, so that the adhesive can move slowly and evenly in the wiring groove 11 to achieve full filling.

[0045] More specifically, in this embodiment, the inner wall of the wiring groove 11 is provided with protrusions, which are buffer parts, and multiple protrusions are provided. The multiple protrusions are spaced apart along the second direction to ensure that the glue is fully filled.

[0046] Specifically, a stop is movably installed at the other end of the wiring channel 11. The inner wall of the wiring channel 11 and the stop form an adhesive injection groove, thereby preventing adhesive from flowing out from the other end of the wiring channel 11 and improving the adhesive application effect. The stop is a stop plate or stop block, which is connected to the box 1 by plugging or snapping. The specific structure of the stop is not limited here, as long as it can achieve the above-mentioned functions.

[0047] Specifically, a sealing element is sandwiched between the inner wall of the wiring groove 11 and the stop, thereby enhancing the sealing performance between the wiring groove 11 and the stop and preventing glue leakage and the entry of external impurities. The sealing element can be a rubber ring or a silicone gasket; the specific structure of the sealing element is not specified here.

[0048] Specifically, the cross-sectional area of ​​the wiring groove 11 gradually decreases from one end to the other, which can guide the glue to flow smoothly and reduce the generation of air bubbles, thereby improving the glue application quality.

[0049] Specifically, the box body 1 has a cubic structure, which facilitates processing, manufacturing, and installation positioning, improving the production efficiency and installation convenience of the junction box. Furthermore, in this embodiment, the photovoltaic module junction box also includes a cover, which is placed on the box body 1 to protect it.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A photovoltaic module junction box, characterized by, The utility model relates to a kind of photovoltaic module cable box, including: Box (1), one side of the box (1) is arranged along the first direction and is configured to be connected to a photovoltaic module (100), the lead-out wire (200) of busbar is drawn from the photovoltaic module (100), the box (1) is provided with a wiring slot (11) penetrating along the second direction, along the second direction, one end of the wiring slot (11) is arranged close to the photovoltaic module (100), the opening end (111) of the wiring slot (11) is placed at the top end of the box (1), the lead-out wire (200) can be arranged in the wiring slot (11) through the opening end (111), and the second direction is arranged at an angle with the first direction.

2. The photovoltaic module junction box of claim 1, wherein, When the box (1) is connected to the photovoltaic module (100), the position of the groove bottom of the wiring slot (11) is lower than the position of the lead-out wire (200) drawn from one side of the photovoltaic module (100).

3. The photovoltaic module junction box of claim 1, wherein, The wiring slot (11) and the lead-out wire (200) are respectively provided with a plurality of wiring slots (11) and a plurality of lead-out wires (200), and the plurality of wiring slots (11) are arranged on the box (1) in a spaced manner and are arranged in one-to-one correspondence with the plurality of lead-out wires (200).

4. The photovoltaic assembly junction box of claim 3, wherein, The box (1) is provided with a connecting portion (12) for connecting the photovoltaic module (100), and along the second direction, the cross-sectional area of the connecting portion (12) is greater than the cross-sectional area of the wiring slot (11).

5. The photovoltaic module junction box of claim 1, wherein, Along the second direction, the cross section of the box (1) is in the shape of U.

6. The photovoltaic module junction box of claim 1, wherein, When the lead-out wire (200) is arranged in the wiring slot (11), glue can be filled in the wiring slot (11), and the inner wall of the wiring slot (11) is provided with a buffer portion.

7. The photovoltaic module junction box of claim 1, wherein, The other end of the wiring slot (11) is movably mounted with a stopper, and the inner wall of the wiring slot (11) and the stopper form a glue injection groove.

8. The photovoltaic module junction box of claim 7, wherein, A sealing element is clamped between the inner wall of the wiring slot (11) and the stopper.

9. The photovoltaic module junction box of claim 1, wherein, From one end to the other end of the wiring slot (11), the cross-sectional area of the wiring slot (11) gradually decreases.

10. The photovoltaic module junction box according to any of claims 1-9, characterized in that, The box (1) is in the shape of a cube.

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