Waterproof photovoltaic connector protection device

Abstract

The utility model relates to a waterproof photovoltaic connector protection device, which comprises a main body sealing element and a waterproof element, the main body sealing element comprises a lower shell and an upper shell, the lower shell and the upper shell are buckled and matched to form an inner cavity for placing a photovoltaic connector, and the waterproof element is arranged between the matching surfaces of the lower shell and the upper shell and is used for preventing water from entering the inner cavity. The two side edges of the lower shell are provided with open grooves, one end of each open groove is provided with a buckling piece, the two side edges of the upper shell are provided with buckling piece holes, and each buckling piece comprises an upper convex buckle, a middle buckle and a lower convex buckle. After the upper protruding buckle penetrates through the buckle piece hole, one side of the upper protruding buckle protrudes out of the buckle piece hole, one side, close to the inner cavity, of the middle buckle is clamped in the buckle piece hole, the lower protruding buckle is located below the buckle piece hole, and one side, away from the inner cavity, of the lower protruding buckle protrudes out of the buckle piece hole. By adopting a multi-sealing structure design, reliable sealing is ensured after the photovoltaic connector is butted, water is prevented from entering from a butting gap, the stability of a photovoltaic system is further improved, the failure rate caused by a humid environment is reduced, and the service life of the connector is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic connectors, in particular to a waterproof photovoltaic connector protection device. Background Art

[0002] When photovoltaic power stations are set up outdoors, extremely high requirements are placed on the waterproof performance of electrical connectors. Existing photovoltaic connectors are prone to poor contact and even serious problems such as short circuits under long-term rain erosion and high humidity environments. Therefore, it is particularly important to design a photovoltaic connector waterproof protection device that can effectively prevent moisture penetration and ensure stable electrical contact. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to provide a waterproof photovoltaic connector protection device in order to overcome the deficiencies in the prior art.

[0004] The utility model solves the technical problem by adopting a technical solution: a waterproof photovoltaic connector protection device, comprising a main body sealing member and a waterproof member,

[0005] The main body seal comprises a lower shell and an upper shell that are snap-fitted to each other, and the lower shell and the upper shell are snap-fitted to form an inner cavity for placing the photovoltaic connector.

[0006] The waterproof member is arranged between the mating surfaces of the lower shell and the upper shell to prevent moisture from entering the inner cavity.

[0007] The two sides of the lower shell and the upper shell are snap-fitted with each other and are provided with slots, one end of the slot close to the inner cavity is provided with a snap-fit ​​piece extending upward, and the two sides of the upper shell are provided with snap-fitting holes that snap-fit ​​with the snap-fit ​​piece.

[0008] The buckle comprises an upper buckle, a middle buckle and a lower buckle. The upper buckle passes through the buckle hole and one side protrudes out of the buckle hole. The middle buckle is clamped in the buckle hole on one side close to the inner cavity. The lower buckle is located below the buckle hole and protrudes out of the buckle hole on one side away from the inner cavity.

[0009] Furthermore, the fasteners are provided in odd number, with one fastener each at the ends of both side edges of the lower shell body, one side edge is provided with n fasteners, and the other side edge is provided with n+1 fasteners, and except for the ends, the fasteners on both side edges are cross-arranged to form a "W"-shaped structure, wherein n is a natural number ≥4.

[0010] Furthermore, the waterproof component includes a port waterproof ring and a waterproof clamp ring.

[0011] The port waterproof ring comprises an upper port waterproof ring and a lower port waterproof ring. The two ends of the lower shell body are provided with a port lower groove adapted to the lower port waterproof ring, and the two ends of the upper shell body are provided with a port upper groove adapted to the upper port waterproof ring.

[0012] The waterproof clamp ring adopts a rectangular structure with chamfers, and the two sides of the lower shell are provided with lower grooves of the clamp ring that are adapted to the two long sides of the waterproof clamp ring.

[0013] Furthermore, the lower port waterproof ring and the waterproof clamp ring in the lower shell are connected as a whole.

[0014] Furthermore, the upper port waterproof ring and the lower port waterproof ring are assembled with each other up and down to form a through hole that allows the two connecting ends of the photovoltaic connector to pass through tightly.

[0015] Furthermore, lower positioning posts are provided on the upper end surfaces on both sides of the lower shell body that are snap-fitted with the upper shell body, and positioning post holes that are tightly plugged in with the lower positioning posts are provided on both side edges of the upper shell body.

[0016] Furthermore, the outer surface of the main body seal is provided with chamfers and protrusion structures for buffering.

[0017] Furthermore, the main body seal is made of PPO. It is made of special materials that are corrosion-resistant, anti-aging and have high mechanical strength to resist corrosion and wear in harsh sea conditions. PPO (Polyphenylene Oxide) is a high-performance engineering plastic with excellent heat resistance, mechanical strength, dimensional stability and good electrical insulation properties.

[0018] Preferably, the main body seal is equipped with a dynamic drainage channel and a salt spray intrusion prevention design to ensure that even if there is water vapor or a small amount of accumulated water, it can be quickly discharged without affecting the safety of the circuit.

[0019] When applied, the waterproof protection device is directly integrated into the design and production of the photovoltaic connector, or installed on an existing connector as an external accessory.

[0020] The beneficial effects of the utility model are as follows: a multiple sealing structure design is adopted to ensure that a reliable seal is formed after the photovoltaic connector is docked, and moisture is prevented from entering through the docking gap, thereby improving the stability of the photovoltaic system, reducing the failure rate caused by a humid environment, and extending the service life of the connector; the adopted snap-fit ​​fittings meet the project requirements after sealing and aging tests, and the snap-fit ​​design does not require auxiliary accessories such as bolts, making the design simpler and cost-saving; the outer surface of the main seal is provided with a chamfer and a raised structure for buffering, which is beneficial to improving the impact resistance of the protective cover; the structure is simple and easy to assemble and disassemble, and is equipped with a status indication function, which is convenient for on-site operators to conduct regular inspections and replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the lower shell of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the upper shell of the utility model;

[0025] Figure 4 This utility model Figure 1 A cross-sectional view of

[0026] Figure 5 It is a structural schematic diagram of the waterproof component of the utility model.

[0027] Numbers in the figure: 1-main body seal,

[0028] 11-lower housing, 111-lower positioning column, 112-fastener, 1121-upper convex buckle, 1122-middle buckle, 1123-lower convex buckle, 113-slot, 114-lower groove of the clamp ring, 115-lower groove of the port;

[0029] 12-upper housing, 121-positioning column hole, 122-fastener hole, 123-port upper groove;

[0030] 2- waterproof part, 21- port waterproof ring, 22- waterproof clamp ring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Figure 1-Figure 5 The waterproof photovoltaic connector protection device shown in the figure comprises a main body sealing member 1 and a waterproof member 2.

[0033] The main sealing member 1 comprises a lower shell 11 and an upper shell 12 which are snap-fitted to each other. The lower shell 11 and the upper shell 12 are snap-fitted to each other to form an inner cavity for placing the photovoltaic connector.

[0034] The waterproof member 2 is disposed between the mating surfaces of the lower shell 11 and the upper shell 12 to prevent moisture from entering the inner cavity.

[0035] Slots 113 are provided on both sides of the lower shell 11 and the upper shell 12 for snap fit. An end of the slot 113 close to the inner cavity is provided with a snap fit piece 112 extending upward. Both sides of the upper shell 12 are provided with snap fit piece holes 122 for snap fit with the snap fit piece 112.

[0036] The fastener 112 includes an upper protrusion 1121, a middle protrusion 1122 and a lower protrusion 1123. The upper protrusion 1121 passes through the fastener hole 122 and protrudes out of the fastener hole 122 on one side. The middle protrusion 1122 is clamped in the fastener hole 122 on one side close to the inner cavity. The lower protrusion 1123 is located below the fastener hole 122 and protrudes out of the fastener hole 122 on the side away from the inner cavity.

[0037] There are an odd number of snap fasteners 112, with one snap fastener at each end of both side edges of the lower shell 11, four snap fasteners 112 on one side, and five snap fasteners 112 on the other side. Except for the ends, the snap fasteners 112 on both side edges are cross-arranged to form a "W"-shaped structure.

[0038] The waterproof part includes a port waterproof ring 21 and a waterproof clamp ring 22.

[0039] The port waterproof ring 21 includes an upper port waterproof ring and a lower port waterproof ring. The lower shell 11 is provided with a lower port groove 115 adapted to the lower port waterproof ring at both ends, and the upper shell 12 is provided with an upper port groove 123 adapted to the upper port waterproof ring at both ends.

[0040] The waterproof collar 22 has a chamfered rectangular structure, and collar lower grooves 114 adapted to the two long sides of the waterproof collar 22 are provided on both sides of the lower shell 11 .

[0041] The lower port waterproof ring in the lower shell 11 is connected with the waterproof clamping ring 22 as a whole.

[0042] The upper port waterproof ring and the lower port waterproof ring are assembled with each other up and down to form a through hole that allows two connecting ends of the photovoltaic connector to pass through tightly.

[0043] Lower positioning posts 111 are provided on the upper end surfaces of both sides of the lower shell 11 and the upper shell 12 , and positioning post holes 121 that are tightly plugged with the lower positioning posts 111 are provided on both sides of the upper shell 12 .

[0044] The outer surface of the main seal 1 is provided with chamfers and convex structures for buffering.

[0045] During assembly, first put the lower port waterproof ring and the waterproof collar 22 into the lower shell 11, and the upper port waterproof ring into the upper shell 12, then put the photovoltaic connector into the inner cavity of the lower shell 11, and then snap-fit ​​the upper shell 12 with the lower shell 11. The snap-fit ​​is specifically as follows: first insert the positioning column hole 121 of the upper shell 12 into the lower positioning column 111 of the lower shell 11, and at the same time, the upper convex buckle 1121 of the fastener 112 is compressed by the side wall of the fastener hole 122 in the horizontal direction by the chamfered structure, driving the middle buckle 1122 to undergo a certain deformation and then pass through the fastener hole 122, and then the fastener 112 recovers its deformation, and the upper convex buckle 1121 is compressed by the side wall of the fastener hole 122 in the horizontal direction ... pass through the fastener hole 122, and then the fastener 112 recovers its deformation, and the upper convex buckle 1121 is compressed by the side wall of the fastener hole 122 in the horizontal direction, driving the middle buckle 1122 to undergo a certain deformation and pass through the fastener hole 122, and then the fastener 112 recovers its deformation, One side of 121 protrudes from the fastener hole 122, the side of the middle fastener 1122 close to the inner cavity is clamped in the fastener hole 122, and the lower convex buckle 1123 is located below the fastener hole 122 and protrudes from the fastener hole 122 on the side away from the inner cavity; after the fastener is engaged, the upper port waterproof ring and the lower port waterproof ring are assembled with each other up and down to form a through hole that allows the two connecting ends of the photovoltaic connector to pass tightly through. At the same time, since there is no groove for the waterproof clamping ring 22 in the upper shell 12, the upper shell 12 and the waterproof clamping ring 22 are tightly matched under the fastener, even if the fastener 112 is translated in the vertical direction, the upper shell 12 and the lower shell 11 are still sealed.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waterproof photovoltaic connector protection device, characterized in that: It comprises a main body sealing member (1) and a waterproof member (2), The main body seal (1) comprises a lower shell (11) and an upper shell (12) which are snap-fitted to each other, and the lower shell (11) and the upper shell (12) are snap-fitted to form an inner cavity for placing a photovoltaic connector. The waterproof member (2) is arranged between the mating surfaces of the lower shell (11) and the upper shell (12) to prevent moisture from entering the inner cavity. The lower shell (11) and the upper shell (12) are provided with slots (113) on both sides thereof where they are snap-fitted, and an end of the slot (113) close to the inner cavity is provided with a snap-fitting piece (112) extending upward, and the upper shell (12) is provided with snap-fitting piece holes (122) snap-fitted with the snap-fitting piece (112), The buckle (112) comprises an upper convex buckle (1121), a middle buckle (1122) and a lower convex buckle (1123); the upper convex buckle (1121) passes through the buckle hole (122) and one side thereof protrudes out of the buckle hole (122); the side of the middle buckle (1122) close to the inner cavity is clamped in the buckle hole (122); and the lower convex buckle (1123) is located below the buckle hole (122) and the side away from the inner cavity protrudes out of the buckle hole (122).

2. A waterproof photovoltaic connector protection device according to claim 1, characterized in that: An odd number of the snap fasteners (112) are provided, one of which is provided at each end of both side edges of the lower shell (11), one side edge is provided with n snap fasteners (112), and the other side edge is provided with n+1 snap fasteners (112). Except for the end edges, the snap fasteners (112) on both side edges are cross-arranged to form a "W"-shaped structure, wherein n is a natural number ≥4.

3. A waterproof photovoltaic connector protection device according to claim 1, characterized in that: The waterproof component comprises a port waterproof ring (21) and a waterproof clamping ring (22). The port waterproof ring (21) comprises an upper port waterproof ring and a lower port waterproof ring. The lower shell (11) has lower port grooves (115) adapted to the lower port waterproof ring at both ends, and the upper shell (12) has upper port grooves (123) adapted to the upper port waterproof ring at both ends. The waterproof clamp ring (22) adopts a rectangular structure with chamfered corners, and the two side edges of the lower shell (11) are provided with clamp ring lower grooves (114) adapted to the two long side edges of the waterproof clamp ring (22).

4. A waterproof photovoltaic connector protection device according to claim 3, characterized in that: The lower port waterproof ring in the lower shell (11) is integrally connected with the waterproof clamping ring (22).

5. A waterproof photovoltaic connector protection device according to claim 3, characterized in that: The upper port waterproof ring and the lower port waterproof ring are assembled with each other up and down to form a through hole that allows the two connecting ends of the photovoltaic connector to pass through tightly.

6. A waterproof photovoltaic connector protection device according to claim 1, characterized in that: Lower positioning columns (111) are provided on the upper end surfaces on both sides of the lower shell (11) and the upper shell (12) where the lower shell (11) is snap-fitted, and positioning column holes (121) which are tightly plugged with the lower positioning columns (111) are provided on both side edges of the upper shell (12).

7. A waterproof photovoltaic connector protection device according to claim 1, characterized in that: The outer surface of the main body seal (1) is provided with a chamfer and a protrusion structure for buffering.

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