Protective kit for MC4 connector of photovoltaic module
By designing protective kits for the kit body and support frame, combined with mortise and tenon snap-fit structure and drainage grooves, the problem of water accumulation in the MC4 connector of BIPV photovoltaic modules on rainy days was solved, achieving improved waterproof performance and enhanced system stability.
Patent Information
- Application Number
- CN202422878177.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-25
AI Technical Summary
When the MC4 connector of a BIPV photovoltaic module is placed directly on the roof panel during rainy weather, rainwater cannot drain out in time, causing water to accumulate inside the connector, resulting in short circuits and burnout, which affects the stable operation of the photovoltaic power generation system, especially in areas with heavy rainfall.
Design a protective kit that includes a kit body and a support frame. The kit body has a cavity and a drainage groove. The support frame is used to support the MC4 connector and is fixed by a tenon and mortise snap structure. The drainage groove is provided on the kit body to quickly drain accumulated water.
It effectively prevents rainwater from entering the connector, improves waterproof performance, reduces the risk of safety accidents, and enhances the stability and lifespan of the photovoltaic module system.
Smart Images
Figure CN223451287U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of BIPV photovoltaic module MC4 connectors, and in particular to a protection kit for a photovoltaic module MC4 connector. Background Art
[0002] After BIPV panels are installed on metal roof panels, the MC4 connectors are placed directly on the panels. This poses several long-term operational issues, particularly regarding waterproofing. Due to the unique nature of BIPV's unsupported construction, the MC4 connectors are placed directly on the panels. Rainwater cannot drain quickly from the panels during rainy days, causing water to accumulate and the MC4 connectors remain submerged. Although the MC4 connectors themselves feature waterproof seals and other protective features, they cannot completely prevent water from entering the connectors, potentially causing short circuits in the metal wires and damage to the connectors caused by water accumulation. This problem is particularly prominent in areas with heavy rainfall, significantly impacting the stable operation of the photovoltaic power generation system. Utility Model Content
[0003] In response to the technical problems existing in the prior art, the utility model provides a protection kit for the MC4 connector of the photovoltaic module, which can effectively prevent rainwater from entering the internal wire core position of the connector and improve the waterproof performance of the MC4 connector of the photovoltaic module.
[0004] The utility model adopts the following technical solutions:
[0005] A protective kit for an MC4 connector of a photovoltaic module, comprising a kit body and a support frame. The support frame is arranged on the surface of the kit body and is used to support the MC4 connector. The kit body is provided with a cavity running through the kit body from front to back along its length, and the MC4 connector is sleeved in the cavity of the kit body. The kit body is also provided with a drainage groove connected to the cavity for draining accumulated water in the cavity.
[0006] Furthermore, a through opening is provided on the wall of the kit body, and a locking structure is provided at the opening.
[0007] Preferably, the locking structure is a mortise and tenon buckle, which includes a concave buckle arranged on one side of the opening and a convex buckle arranged on the other opposite side. The mortise on the concave buckle and the tenon on the convex buckle form a mortise and tenon joint for closing the opening of the kit body.
[0008] Furthermore, the support frame includes a plurality of annular supports fixed at both ends of the kit body.
[0009] Preferably, the kit body is a cylindrical structure, and four of the annular supports are fixed at two ends of the kit body respectively and are evenly arranged along the circumferential surface of the kit body.
[0010] Preferably, a plurality of the drainage grooves are arranged on the circumferential surface of the kit body, each of the drainage grooves extends along the axial direction of the kit body, and both ends of the drainage groove extend to the inner ends of the annular supports at two ends of the kit body and are located on the same straight line with the gap formed by the two adjacent annular supports.
[0011] Further, a through cavity is formed in the middle part of the annular support and extends along the axial direction of the annular support.
[0012] The technical scheme of the utility model has the following advantages:
[0013] A. The kit body with the cavity and the support frame provided by the utility model are combined, the MC4 connector of the photovoltaic module directly placed on the roof panel can be placed in the cavity for wrapping and supporting, the MC4 connector is prevented from being soaked in water to cause internal water accumulation, meanwhile, the drainage groove is formed on the kit body, internal water can also be quickly drained, and the risk of safety accidents is reduced.
[0014] B. The utility model only needs to put the MC4 connector into the cavity of the kit body, and then the mortise and tenon joint buckle is buckled, so that the structure is simple, the installation operation is convenient, the original component device is not damaged, the water accumulation phenomenon of the photovoltaic module joint in rainy weather is effectively prevented, and the stability and service life of the photovoltaic module system are improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the specific embodiment of the utility model, the drawings needed in the specific embodiment will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can also be obtained according to the drawings for those skilled in the art without creative labor.
[0016] Figure 1 is a schematic view of the multi-annular support kit structure provided by the utility model;
[0017] Figure 2 is Figure 1 the bottom view of the mortise and tenon joint buckle and the overall view of the drainage groove;
[0018] Figure 3 is Figure 2 the detailed position schematic view of the drainage groove opening.
[0019] The symbols in the drawings are as follows:
[0020] 1 - Set body, 1a - Cavity, 1b - Drainage groove, 1c - Opening
[0021] 2 - Support frame, 2a - Through cavity
[0022] 3 - Locking structure
[0023] 31 - Concave buckle, 311 - Mortise
[0024] 32 - Convex buckle, 321 - Tenon DETAILED DESCRIPTION
[0025] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0026] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0028] As Figure 1 , Figure 2 and Figure 3As shown, the present invention provides a protective kit for MC4 connectors of photovoltaic modules, including a kit body 1 and a support frame 2, which is an integrally formed structure. The support frame 2 is arranged on the surface of the kit body 1 and is used to erect the MC4 connector and remove it from the roof. A cavity 1a is provided in the kit body 1, which runs through the length of the kit body 1 from front to back. The MC4 connector is mounted in the cavity 1a of the kit body 1. The kit body 1 is also provided with a drainage groove 1b connected to the cavity 1a. The accumulated water entering the cavity 1a can be drained through the drainage groove 1b. The preferred kit body of the present invention is a cylindrical structure. Of course, it can also be a structure of other shapes, which will not be repeated here. The kit body 1 and the support frame 2 are preferably made of plates. The kit body 1 forms a cavity 1a, and a through cavity 2a running through the kit body 1 from front to back is formed between the support frame 2 and the surface of the kit body 1.
[0029] To facilitate placement of the MC4 connector within cavity 1a of the kit body 1, the present invention further incorporates an openable design into the kit body 1, with a full-length opening 1c defined in the wall of the kit body 1 and a locking structure 3 positioned within opening 1c. Simply opening locking structure 3 and then slightly opening opening 1c allows the MC4 connector to be easily positioned from one end of the kit body 1 into cavity 1a. Closing locking structure 3 secures the MC4 connector within cavity 1a. A drainage groove 1b is provided in the wall of the kit body 1, allowing any accumulated water in cavity 1a to drain quickly through the groove 1b.
[0030] The locking structure 3 preferably used in the present invention is a mortise and tenon buckle, which includes a concave buckle 31 disposed on one side of the opening 1c and a convex buckle 32 disposed on the opposite side. The concave buckle 31 is provided with a mortise groove 311, and the convex buckle 32 is provided with a tenon 321. When the mortise groove 311 and the tenon 321 form a mortise and tenon joint, the opening 1c of the kit body 1 is closed. Of course, the present invention is not limited to the mortise and tenon buckle structure described above, and a chain connection method or the like may also be used, which will not be described in detail here.
[0031] The support frame 2 in the present invention includes a plurality of annular supports, which are fixed at both ends of the kit body 1, such as Figure 2 As shown, four annular brackets are fixed at both ends of the kit body 1, and the four annular brackets are evenly arranged along the circumference of the kit body 1, that is, 8 annular brackets are arranged on the kit body 1. In addition, the utility model sets a plurality of drainage grooves 1b on the circumference of the kit body 1, and the drainage grooves 1b adopt a rectangular structure, such as Figure 2 As shown, three rectangular drainage grooves 1b are provided to drain the accumulated water in the kit body 1 .
[0032] like Figure 3As shown, the rectangular drainage groove 1b extends along the axial direction of the kit body 1, and the two ends of the drainage groove 1b extend to the inner ends of the annular supports at the two ends of the kit body 1 and are located on the same straight line with the gap formed by the two adjacent annular supports. The short side size of the rectangular drainage groove 1b is determined according to the distance between the inner surfaces of the two adjacent annular supports, so as to drain the rainwater in the kit body 1 and prevent the rainwater from entering the MC4 connector.
[0033] Figure 1 The cavity 1a is formed in the middle of the kit body 1 and penetrates front and back, and the MC4 connector is completely wrapped therein. The cavity 2a is formed in the middle of the eight annular supports and penetrates front and back, so as to support the MC4 connector and keep it away from water, and the surface of the annular support is smooth and not easy to scratch.
[0034] The mortise and tenon buckle 3 comprises two parts, namely a concave buckle 31 and a convex buckle 32. The concave buckle 31 is connected with the convex buckle 32 to form an integral whole. In order to improve the biting force of the mortise and tenon buckle 3, the inner side surface of the mortise groove 311 and the tenon 321 are slightly recessed, so that the connection is more firm, and the kit body 1 is effectively prevented from loosening. The MC4 connector is placed in the cavity 1a formed in the middle of the kit body 1, and then the concave buckle 31 and the convex buckle 32 are connected to form an integral whole, so that the MC4 connector is completely wrapped in the kit body 1, and the MC4 connector is protected from being soaked in water to cause internal wire core water accumulation and short circuit.
[0035] The unmentioned part of the utility model is applicable to the prior art.
[0036] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.
Claims
1. A MC4 connector protection kit for photovoltaic modules, characterized in that: The protective kit comprises a kit body (1) and a support frame (2), wherein the support frame (2) is arranged on the surface of the kit body (1) and is used to support the MC4 connector; the kit body (1) is provided with a cavity (1a) running through the kit body along its length, and the MC4 connector is sleeved in the cavity (1a) of the kit body (1); the kit body (1) is also provided with a drainage groove (1b) connected to the cavity (1a) and is used to drain the accumulated water in the cavity (1a).
2. The MC4 connector protection kit for photovoltaic modules according to claim 1, characterized in that: A through-length opening (1c) is also provided on the wall of the kit body (1), and a locking structure (3) is provided at the opening (1c).
3. The MC4 connector protection kit for photovoltaic modules according to claim 2, characterized in that: The locking structure (3) is a mortise and tenon buckle, which includes a concave buckle (31) arranged at one side of the opening (1c) and a convex buckle (32) arranged at another opposite side. The mortise groove (311) on the concave buckle (31) and the tenon (321) on the convex buckle (32) form a mortise and tenon joint for closing the opening (1c) of the kit body (1).
4. The MC4 connector protection kit for photovoltaic modules according to any one of claims 1 to 3, characterized in that: The support frame (2) comprises a plurality of annular supports, which are fixed at both ends of the kit body (1).
5. The MC4 connector protection kit for photovoltaic modules according to claim 4, characterized in that: The kit body (1) is a cylindrical structure, with four annular supports fixed at both ends, and the four annular supports are evenly arranged along the circumferential surface of the kit body (1).
6. The MC4 connector protection kit for photovoltaic modules according to claim 5, characterized in that: A plurality of drainage grooves (1b) are provided on the circumferential surface of the kit body (1), and each drainage groove (1b) extends along the axial direction of the kit body (1). Both ends of the drainage groove (1b) extend to the inner ends of the annular brackets at both ends of the kit body (1), and are located on the same straight line as the gap formed by two adjacent annular brackets.
7. The MC4 connector protection kit for photovoltaic modules according to claim 5, characterized in that: A through cavity (2a) is formed in the middle of the annular support and runs through the annular support in an axial direction.