Special photovoltaic connector for offshore photovoltaic power plant

Abstract

The utility model discloses a special photovoltaic connector for an offshore photovoltaic power plant, relates to the technical field of photovoltaic connectors, and solves the problem that the design of a traditional connector often does not fully consider the safety and the convenience of offshore operation so that the on-site construction difficulty is large. The two ends of the shell are each provided with a shrinkage sleeve used for inserting a cable, the interior of each shrinkage sleeve is fixedly connected with an electrode plate, the inner circumference of each shrinkage sleeve abuts against a waterproof rubber ring, the exterior of each shrinkage sleeve is in threaded connection with a locking nut, and the side wall of each shrinkage sleeve is provided with a shrinkage opening. When the cable connector is used for connecting cables, only the end parts of two cables to be connected need to be respectively inserted into the telescopic sleeves at the two ends of the shell, then the shell can be held, the locking nuts are screwed by hands, and the waterproof rubber rings are compressed and deformed to tightly wrap the cables, so that the intrusion can be prevented, and the convenience and the safety of cable connection are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic connector technical field especially is related to a photovoltaic connector special for offshore photovoltaic power plant. BACKGROUND

[0002] With the global energy crisis and environmental pollution problem increasingly serious, the development and utilization of clean energy have been widely valued, wherein solar energy as a kind of clean, renewable resources, in the power generation field has great development potential.In recent years, offshore photovoltaic power generation gradually becomes a research hotspot because of its vast sea area and sufficient sunshine time.However, the marine environment is complex and changeable, humidity is high, salt fog corrosion is serious, and the traditional photovoltaic connector used on land is difficult to meet the demand of long-term stable work, which limits the widespread application and development of offshore photovoltaic power station.

[0003] Before, aiming at the electrical connection problem of offshore photovoltaic power station, the industry usually adopts the traditional connector with enhanced corrosion resistance or specially designed waterproof sealing joint, the former improves the corrosion resistance through surface treatment, and the latter realizes the moisture-proof effect through complex sealing structure.But the design of traditional connector often does not fully consider the safety and convenience of offshore operation, which leads to great difficulty in field construction.

[0004] Therefore, the present application provides a photovoltaic connector special for offshore photovoltaic power plant. UTILITY MODEL CONTENT

[0005] In order to improve the problem that the design of traditional connector often does not fully consider the safety and convenience of offshore operation, which leads to great difficulty in field construction, the utility model provides a photovoltaic connector special for offshore photovoltaic power plant.

[0006] The utility model provides a photovoltaic connector special for offshore photovoltaic power plant adopts the following technical scheme:

[0007] A photovoltaic connector special for offshore photovoltaic power plant, comprising a shell, the both ends of the shell are provided with shrink sleeves for inserting cables, the inside of the shrink sleeve is fixedly connected with an electrode sheet, the inner circumference of the shrink sleeve is abutted with a waterproof rubber ring, the outside of the shrink sleeve is screw-connected with a locking nut, and the side wall of the shrink sleeve is provided with a shrink opening.

[0008] The shell is composed of two mutually butted shells, the mutually close ends of the two shells are respectively provided with a matched butt joint and a butt joint groove, the outer wall of the butt joint is provided with a clamping groove, the inner wall of the butt joint groove is provided with a cavity, and the cavity is provided with a clamping assembly.

[0009] By adopting the technical scheme, when connecting cables, only the ends of two cables to be connected are inserted into the shrink sleeves at the two ends of the shell respectively, the cable cores are ensured to be in contact with the electrode sheets, then the shell is held to hand-tighten the locking nuts, the locking nuts slide along the shrink sleeves, the shrink sleeves are extruded, the shrink sleeves gradually shrink, the shrink sleeves compress the waterproof rubber rings in the process of shrinking, the waterproof rubber rings are compressed and deformed, tightly wrap the cables, the waterproof rubber rings are tightly attached to the cable skins, thereby preventing invasion and improving the convenience and safety of cable connection, the shell is installed by clamping two shell bodies, the connector is conveniently assembled and disassembled, and a worker can complete the operation manually, and convenience is further improved.

[0010] Optionally, the two electrode sheets are electrically connected through the conductive columns.

[0011] By adopting the technical scheme, the two cables can be electrically connected through the electrode sheets and the conductive columns.

[0012] Optionally, the clamping assembly comprises a fixed shaft fixedly connected in the cavity, a connecting rod hinged to the fixed shaft, a clamping block and a button slidably connected at two ends of the connecting rod respectively, springs abutting between the clamping block and the button and the inner wall of the cavity, the clamping block slidingly extending to the inner wall of the butt joint groove, and the button slidingly extending to the outer wall of the shell.

[0013] By adopting the technical scheme, when assembling the connector, the butt joint part of one shell body is inserted into the butt joint groove of the other shell body, when the butt joint part is completely inserted into the butt joint groove, the two conductive columns contact each other, and the clamping block is aligned with the clamping groove, at this time, the spring is elastically reset to push the clamping block into the clamping groove, thereby fixing the butt joint part in the butt joint groove and completing the connection of the two shell bodies, when disassembling the connector, only the button needs to be pressed to drive the clamping block to retract into the cavity through the connecting rod, and the butt joint part can be pulled out, thereby facilitating the assembly and disassembly of the connector.

[0014] Optionally, the clamping block is provided with an inclined surface facing the opening of the butt joint groove.

[0015] By adopting the technical scheme, in the process of inserting the butt joint part into the butt joint groove, the inclined surface of the clamping block contacts the outer wall of the butt joint part, the clamping block is extruded to retract into the cavity, and the spring is compressed, so that the butt joint part can be smoothly inserted into the butt joint groove.

[0016] Optionally, the clamping block and the button are fixedly connected with telescopic rods between the inner wall of the cavity and the telescopic rods are arranged to penetrate the inside of the spring.

[0017] By adopting the technical scheme, the spring can be limited and supported, and the spring can be prevented from being skewed.

[0018] Optionally, one end of each of the two housings abuts against a first sealing ring.

[0019] By adopting the technical scheme, the sealing and waterproof effect of the butt joint surface of the two housings can be improved.

[0020] Optionally, a second sealing ring is clamped between the outer circumference of the butt joint portion and the inner circumference of the butt joint groove.

[0021] By adopting the technical scheme, the sealing and waterproof effect between the butt joint portion and the butt joint groove can be improved.

[0022] Optionally, a third sealing ring is abutted between one end of the butt joint portion and the inner wall of the butt joint groove.

[0023] By adopting the technical scheme, the sealing and waterproof effect inside the two housings can be improved.

[0024] In summary, the utility model has the following beneficial effects:

[0025] 1. The utility model discloses a shell, a contraction sleeve, an electrode piece, a waterproof rubber ring and a locking nut are arranged, when connecting the cable, only the end of two cables to be connected is inserted into the contraction sleeve at the both ends of the shell respectively, the cable core is guaranteed to contact with the electrode piece, then the locking nut can be hand-tightened by holding the shell, the locking nut slides along the contraction sleeve, the contraction sleeve is extruded, the contraction sleeve gradually contracts, the waterproof rubber ring is compressed during the contraction process of the contraction sleeve, the waterproof rubber ring is deformed by compression, tightly wraps the cable, the waterproof rubber ring is closely attached to the cable skin, thereby can prevent the invasion, improves the convenience and safety of cable connection.

[0026] 2. The utility model discloses a shell is installed by the clamping of two housings, is convenient for assembling and splitting of the connector, and the staff can complete the operation by hand, further increases the convenience. DRAWINGS

[0027] Figure 1 It is the overall structure schematic diagram of the utility model.

[0028] Figure 2 It is the structure schematic diagram of the utility model housing.

[0029] Figure 3 It is the section structure schematic diagram of the utility model.

[0030] Figure 4 It is the structure schematic diagram of the utility model. Figure 3 It is the structure enlarged view of A place in the utility model.

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] 1, housing; 11, shell; 12, butt joint; 13, butt joint groove; 14, clamping groove; 15, clamping assembly; 151, connecting rod; 152, clamping block; 153, button; 154, spring; 155, telescopic rod; 16, first sealing ring; 17, second sealing ring; 18, third sealing ring; 2, shrink sleeve; 3, electrode sheet; 31, conductive column; 4, waterproof rubber ring; 5, locking nut. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with drawings of the embodiments of the utility model. Figures 1-4 It is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] Please refer to Figures 1-3 A special photovoltaic connector for offshore photovoltaic power plant, comprising a housing 1, both ends of the housing 1 are provided with a shrink sleeve 2 for inserting cables, the inside of the shrink sleeve 2 is fixedly connected with an electrode sheet 3, the two electrode sheets 3 are electrically connected through a conductive column 31, the inner circumference of the shrink sleeve 2 is abutted with a waterproof rubber ring 4, the outside of the shrink sleeve 2 is threadedly connected with a locking nut 5, the side wall of the shrink sleeve 2 is provided with a shrinkage opening, the outer circumference of the shrink sleeve 2 is provided with an outer thread matched with the locking nut 5, through the arrangement of the housing 1, the shrink sleeve 2, the electrode sheet 3, the waterproof rubber ring 4 and the locking nut 5, when connecting the cables, only the ends of the two cables to be connected are inserted into the shrink sleeves 2 at both ends of the housing 1 respectively, the cable core is ensured to be in contact with the electrode sheet 3, then the locking nut 5 can be screwed by hand, the locking nut 5 slides along the shrink sleeve 2, the shrink sleeve 2 is extruded, the shrink sleeve 2 gradually shrinks, in the process of shrinking the shrink sleeve 2, the shrink sleeve 2 compresses the waterproof rubber ring 4, the waterproof rubber ring 4 is compressed and deformed, tightly wraps the cable, the waterproof rubber ring 4 tightly adheres to the cable skin, thereby preventing the invasion and improving the convenience and safety of the cable connection.

[0035] Refer to Figures 2-4The shell 1 is composed of two mutually abutting shells 11, and the mutually close ends of the two shells 11 are respectively provided with mutually matched abutting portions 12 and abutting grooves 13. The outer wall of the abutting portion 12 is provided with a clamping groove 14, the inner wall of the abutting groove 13 is provided with a cavity, and the cavity is provided with a clamping assembly 15. The shell 1 is clamped and installed by two shells 11, which facilitates the assembly and disassembly of the connector, and the operation can be completed manually by the staff, thereby further increasing the convenience.

[0036] Specifically, the clamping assembly 15 includes a fixed shaft fixedly connected in the cavity, a connecting rod 151 hinged to the fixed shaft, clamping blocks 152 and buttons 153 slidingly connected at both ends of the connecting rod 151, guide blocks provided on the side surfaces of the clamping blocks 152 and the buttons 153, guide grooves provided at both ends of the connecting rod 151, the guide blocks sliding in the guide grooves, springs 154 abutting between the clamping blocks 152 and the buttons 153 and the inner wall of the cavity, the clamping blocks 152 slidingly extending to the inner wall of the abutting groove 13, the clamping blocks 152 being provided with inclined surfaces facing the opening direction of the abutting groove 13, and the buttons 153 slidingly extending to the outer wall of the shell 11. Through the arrangement of the clamping assembly 15, when the connector is assembled, the abutting portion 12 of one shell 11 can be inserted into the abutting groove 13 of the other shell 11. During the insertion of the abutting portion 12 into the abutting groove 13, the inclined surface of the clamping block 152 contacts the outer wall of the abutting portion 12, the clamping block 152 is extruded and retracted into the cavity, and the spring 154 is compressed, so that the abutting portion 12 can be smoothly inserted into the abutting groove 13. When the abutting portion 12 is completely inserted into the abutting groove 13, the two conductive columns 31 contact each other, and the clamping block 152 is aligned with the clamping groove 14. At this time, the spring 154 is elastically reset to push the clamping block 152 into the clamping groove 14, thereby fixing the abutting portion 12 in the abutting groove 13, completing the connection of the two shells 11. When the connector is disassembled, the abutting portion 12 can be pulled out by only pressing the button 153 to make the button 153 drive the clamping block 152 to retract into the cavity through the connecting rod 151, thereby facilitating the assembly and disassembly of the connector.

[0037] The clamping block 152 and the button 153 are fixedly connected with the telescopic rod 155 between the inner wall of the cavity, and the telescopic rod 155 penetrates the inside of the spring 154. Through the arrangement of the telescopic rod 155, the spring 154 can be limited and supported, and the spring 154 can be prevented from being skewed.

[0038] Refer to Figures 2-4The outer circumferences of the abutting portions 12 and the inner circumferences of the abutting grooves 13 are clamped with the second sealing rings 17, and the ends of the abutting portions 12 and the inner walls of the abutting grooves 13 abut with the third sealing rings 18, so that the sealing property between the two housings 11 is improved, and the waterproof effect of the connector is ensured.

[0039] The utility model discloses the implementation principle is: through the setting of shell 1, contraction sleeve 2, electrode piece 3, waterproof rubber ring 4 and lock nut 5, when connecting cable, only need to insert the end of two cables needing connecting into the contraction sleeve 2 of shell 1 two ends respectively, ensure that cable core is contacted with electrode piece 3 completely, then can hold shell 1 and twist lock nut 5, make lock nut 5 slide along contraction sleeve 2, extrude contraction sleeve 2, make contraction sleeve 2 gradually contract, in the contraction process of contraction sleeve 2, contraction sleeve 2 will compress waterproof rubber ring 4, make waterproof rubber ring 4 compression deformation, tightly wrap cable, and waterproof rubber ring 4 is closely attached cable skin, thereby can prevent invasion, improve the convenience and security of cable connection. Through the setting of clamping assembly 15, when assembling the connector, the abutting portion 12 of one of the housings 11 can be inserted into the abutting groove 13 of the other housing 11, in the process of inserting the abutting portion 12 into the abutting groove 13, the inclined surface of the clamping block 152 contacts the outer wall of the abutting portion 12, the clamping block 152 is extruded and retracts into the cavity, and the spring 154 is compressed, so that the abutting portion 12 can be smoothly inserted into the abutting groove 13, when the abutting portion 12 is completely inserted into the abutting groove 13, the two conductive columns 31 contact each other, and the clamping block 152 is aligned with the clamping groove 14, at this time, the spring 154 is elastically reset to push the clamping block 152 into the clamping groove 14, so as to fix the abutting portion 12 in the abutting groove 13, and the connection of the two housings 11 is completed, when disassembling the connector, only need to press the button 153, make the button 153 drive the clamping block 152 to retract into the cavity through the connecting rod 151, the abutting portion 12 can be pulled out, which facilitates the assembly and disassembly of the connector.

[0040] The above only is the preferred embodiment of the utility model, and does not use for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiment, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical feature. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A marine photovoltaic power plant dedicated photovoltaic connector comprising a housing (1), characterized in that: Both ends of the shell (1) are provided with a shrink sleeve (2) for inserting a cable, the inside of the shrink sleeve (2) is fixedly connected with an electrode sheet (3), the inner circumference of the shrink sleeve (2) is abutted with a waterproof rubber ring (4), the outside of the shrink sleeve (2) is threadedly connected with a locking nut (5), and the side wall of the shrink sleeve (2) is provided with a shrinkage opening. The shell (1) is composed of two mutually abutting shells (11), and the mutually close ends of the two shells (11) are respectively provided with a matched abutting part (12) and an abutting groove (13), the outer wall of the abutting part (12) is provided with a clamping groove (14), the inner wall of the abutting groove (13) is provided with a cavity, and the cavity is provided with a clamping assembly (15).

2. A marine photovoltaic power plant dedicated photovoltaic connector according to claim 1, characterized in that: The two electrode sheets (3) are electrically connected through a conductive column (31).

3. A marine photovoltaic power plant dedicated photovoltaic connector according to claim 1, characterized in that: The clamping assembly (15) comprises a fixed shaft fixedly connected in the cavity, a connecting rod (151) hinged on the fixed shaft, clamping blocks (152) and buttons (153) slidably connected at both ends of the connecting rod (151), springs (154) abutting between the clamping blocks (152) and the buttons (153) and the inner wall of the cavity, the clamping blocks (152) slidingly extending to the inner wall of the abutting groove (13), and the buttons (153) slidingly extending to the outer wall of the shell (11).

4. A marine photovoltaic power plant dedicated photovoltaic connector according to claim 3, characterized in that: The clamping blocks (152) are provided with inclined surfaces facing the direction of the opening of the abutting groove (13).

5. A marine photovoltaic plant dedicated photovoltaic connector according to claim 3, characterized in that: The clamping blocks (152) and the buttons (153) are fixedly connected with telescopic rods (155) between the inner wall of the cavity, and the telescopic rods (155) penetrate the inside of the springs (154).

6. A marine photovoltaic plant dedicated connector according to claim 1, characterized in that: The mutually close ends of the two shells (11) are abutted with first sealing rings (16).

7. A marine photovoltaic power plant dedicated photovoltaic connector according to claim 1, characterized in that: The outer circumference of the abutting part (12) and the inner circumference of the abutting groove (13) are clamped with second sealing rings (17).

8. A marine photovoltaic power plant dedicated photovoltaic connector according to claim 1, characterized in that: The end of the abutting part (12) and the inner wall of the abutting groove (13) are abutted with third sealing rings (18).

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