Waterproof structure of photovoltaic power cable

Abstract

The utility model provides a photovoltaic power cable waterproof structure which comprises a waterproof cylinder, an arc-shaped groove is formed in the inner end of the waterproof cylinder, a movable arc-shaped plate is arranged at the inner end of the arc-shaped groove, a positioning groove is formed in the outer end of the waterproof cylinder, a fan-shaped groove is formed in the inner end of the positioning groove, a positioning shaft is arranged at the inner end of the fan-shaped groove, and a linkage spring is wound around the outer end of the positioning shaft. A movable triangular block is arranged at the outer end of the linkage spring, an air groove is formed in the inner end of the movable arc-shaped plate, two linkage shafts are arranged at the inner end of the air groove, pushing plates are arranged at the outer ends of the two linkage shafts, an air nozzle is arranged at the outer end of the air groove, and a waterproof outer ring and a waterproof inner ring are arranged at the outer end of the waterproof cylinder and the outer end of the movable arc-shaped plate respectively. The waterproof structure solves the problems that according to cable waterproof design, in the cable waterproof use process, waterproof treatment cannot be carried out according to connecting parts of photovoltaic cables of different specifications, and in the waterproof process, cable short circuit fire cannot be primarily treated through the waterproof structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable waterproof technical field, specifically, relate to photovoltaic power cable's waterproof structure. BACKGROUND

[0002] Photovoltaic cables are usually installed in outdoor environments, which can contain a lot of moisture, such as rain, dew or groundwater. The invasion of moisture can cause the cable insulation performance to decline, increase the risk of short circuit and electric leakage, and even cause a fire in severe cases. Waterproof treatment can effectively prevent moisture from eroding cable materials, slow down the aging process of the cable, and thus prolong the service life of the cable. This is crucial for reducing long-term maintenance costs and maintaining the stable operation of photovoltaic systems. Photovoltaic cables need to work in different climate conditions, including high temperature, low temperature, humidity change, etc. Good waterproof performance helps the cable to maintain stable performance in these changing environments, ensuring the continuity and reliability of power transmission. Some photovoltaic systems may be installed in special environments, such as underwater or humid soil, and these applications have higher requirements for the waterproof performance of the cable. Special design of waterproof photovoltaic cable can meet the needs of these special applications, ensuring the safe and efficient operation of the system.

[0003] In the prior art, the connection part of the photovoltaic cable of different specifications cannot be waterproofed during the use of the cable waterproof, and the short circuit and fire of the cable cannot be preliminarily treated by the waterproof structure during the waterproof process. Therefore, we improve it and propose a waterproof structure for photovoltaic power cable. UTILITY MODEL CONTENT

[0004] The utility model aims at: in view of the design of the cable waterproof at present, the connection part of the photovoltaic cable of different specifications cannot be waterproofed during the use of the cable waterproof, and the short circuit and fire of the cable cannot be preliminarily treated by the waterproof structure during the waterproof process.

[0005] In order to realize the above-mentioned utility model purpose, the utility model provides the following technical scheme:

[0006] The waterproof structure of the photovoltaic power cable is used to improve the above-mentioned problems.

[0007] The application is as follows:

[0008] The utility model provides a waterproof structure of photovoltaic power cable, including waterproof cylinder, the inner end of waterproof cylinder is equipped with arc groove, the inner end of arc groove is equipped with moving arc plate, the outer end of waterproof cylinder is equipped with positioning groove, the inner end of positioning groove is equipped with sector groove, the inner end of sector groove is equipped with positioning shaft, the outer end of positioning shaft is wound with linkage spring, the outer end of linkage spring is equipped with movable triangular block, the inner end of moving arc plate is equipped with air groove, the inner end of air groove is equipped with two groups linkage shaft, the outer end of two groups linkage shaft is equipped with push plate, the outer end of air groove is equipped with air nozzle, and the outer end of waterproof cylinder and moving arc plate is equipped with waterproof outer ring and waterproof inner ring respectively.

[0009] As the preferred technical scheme of the application, the moving arc plate slides along the arc groove, the positioning groove is connected with the outer end of the moving arc plate, the inner end of the positioning groove is connected with the sector groove, and the positioning shaft is fixed at the inner end of the sector groove.

[0010] As the preferred technical scheme of the application, one end of the linkage spring is fixed on the positioning shaft, the other end of the linkage spring is fixed on the inner end of the movable triangular block, and the movable triangular block rotates along the sector groove.

[0011] As the preferred technical scheme of the application, the air groove is embeddedly installed at the inner end of the moving arc plate, the two ends of the air groove are fixedly connected with one group of linkage shafts, the two groups of linkage shafts are movably connected with the two ends of the push plate, and the push plate is made of high-temperature-resistant flexible material.

[0012] As the preferred technical scheme of the application, the edge of the push plate is elastically fixed with the air groove, the outer end of the air groove is connected with the air nozzle in a penetrating mode, and the air nozzle is internally provided with a self-locking mechanism.

[0013] As the preferred technical scheme of the application, the outer ends of the waterproof cylinder and the moving arc plate are fixedly connected with the waterproof outer ring and the waterproof inner ring respectively, the outer ends of the waterproof outer ring and the waterproof inner ring are in contact with each other, and the waterproof outer ring and the waterproof inner ring are made of high-temperature-resistant flexible material.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] In the scheme of the application:

[0016] By wrapping the waterproof cylinder around the outer end of the photovoltaic power cable and pushing the moving arc plate, when the tail end of the moving arc plate is clamped into the positioning groove, the movable triangular block is elastically pushed by the linkage spring at the outer end of the positioning shaft, and is clamped into a part of the sector groove at the tail end of the moving arc plate, so that the positioning between the moving arc plate and the waterproof cylinder is realized.

[0017] By clamping the external air pump on the air nozzle and injecting gas into the air groove, the push plate is inflated, and after the photovoltaic power cable is connected, it is fixed in the waterproof cylinder, so that the waterproof effect is not affected by movement.

[0018] At the same time, the gas injected into the gas groove can be fireproof cooling gas, which can be used for preliminary emergency treatment before the maintenance personnel rush to repair when the cable is short-circuited. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The overall structure schematic diagram of the waterproof structure of the photovoltaic power cable is provided in the application;

[0020] Figure 2 The arc-shaped groove side sectional structure diagram of the waterproof structure of the photovoltaic power cable is provided in the application;

[0021] Figure 3 The positioning groove sectional structure schematic diagram of the waterproof structure of the photovoltaic power cable is provided in the application;

[0022] Figure 4 The waterproof cylinder sectional structure schematic diagram of the waterproof structure of the photovoltaic power cable is provided in the application; Figure 2 The enlarged structure schematic diagram of the waterproof structure of the photovoltaic power cable is provided in the application;

[0023] Figure 5 The waterproof cylinder sectional structure schematic diagram of the waterproof structure of the photovoltaic power cable is provided in the application;

[0024] Figure 6 The waterproof structure of the photovoltaic power cable is provided in the application; Figure 3 The enlarged structure schematic diagram of the waterproof structure of the photovoltaic power cable is provided in the application.

[0025] Indicated in the figure:

[0026] 1, waterproof cylinder; 2, moving arc-shaped plate; 3, arc-shaped groove; 4, positioning groove; 5, gas groove; 6, push plate; 7, linkage shaft; 8, air nozzle; 9, linkage spring; 10, positioning shaft; 11, movable triangular block; 12, fan-shaped groove; 13, waterproof inner ring; 14, waterproof outer ring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0028] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but only represents some embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. It should be noted that the embodiments in the present application and the features and technical schemes in the embodiments can be combined with each other without conflict.

[0029] It should be noted that like reference numerals and letters refer to like items throughout the several views, and once an item is defined in one view, it should not require further defining and explaining in the subsequent views.

[0030] As shown in the drawings, Figures 1-6 The waterproof structure of the photovoltaic power cable is provided, which comprises a waterproof cylinder 1, an arc-shaped groove 3 is arranged at the inner end of the waterproof cylinder 1, a movable arc-shaped plate 2 is arranged at the inner end of the arc-shaped groove 3, a positioning groove 4 is arranged at the outer end of the waterproof cylinder 1, a sector-shaped groove 12 is arranged at the inner end of the positioning groove 4, a positioning shaft 10 is arranged at the inner end of the sector-shaped groove 12, a linkage spring 9 is wound at the outer end of the positioning shaft 10, a movable triangular block 11 is arranged at the outer end of the linkage spring 9, an air groove 5 is arranged at the inner end of the movable arc-shaped plate 2, two groups of linkage shafts 7 are arranged at the inner end of the air groove 5, a push plate 6 is arranged at the outer end of the two groups of linkage shafts 7, an air nozzle 8 is arranged at the outer end of the air groove 5, and a waterproof outer ring 14 and a waterproof inner ring 13 are arranged at the outer ends of the waterproof cylinder 1 and the movable arc-shaped plate 2 respectively.

[0031] The movable arc-shaped plate 2 slides in and out of the arc-shaped groove 3, the positioning groove 4 is clamped and connected with the outer end of the movable arc-shaped plate 2, the inner end of the positioning groove 4 is through-connected with the sector-shaped groove 12, and the positioning shaft 10 is fixed at the inner end of the sector-shaped groove 12.

[0032] One end of the linkage spring 9 is fixed on the positioning shaft 10, the other end of the linkage spring 9 is fixed on the inner end of the movable triangular block 11, and the movable triangular block 11 rotates in and out of the sector-shaped groove 12.

[0033] When the tail end of the movable arc-shaped plate 2 is clamped into the positioning groove 4, the movable triangular block 11 follows the elastic movement of the linkage spring 9 at the outer end of the positioning shaft 10 and is clamped into a part of the sector-shaped groove 12 at the tail end of the movable arc-shaped plate 2, so as to realize the positioning between the movable arc-shaped plate 2 and the waterproof cylinder 1.

[0034] The air groove 5 is embeddedly installed at the inner end of the movable arc-shaped plate 2, the two ends of the air groove 5 are fixedly connected with one group of linkage shafts 7 respectively, the two groups of linkage shafts 7 are movably connected with the two ends of the push plate 6 respectively, and the material of the push plate 6 is high-temperature-resistant flexible material.

[0035] The edge of the push plate 6 is elastically fixed with the air groove 5, the outer end of the air groove 5 is through-connected with the air nozzle 8, and the air nozzle 8 is internally provided with a self-locking mechanism.

[0036] In the present application, the specific structure of the self-locking mechanism of the air nozzle 8 is not specially limited, as long as it can realize the injection of gas and self-locking after injection, and according to the specific use scene, a self-locking joint and a quick joint can be used to realize self-locking.

[0037] After the drain cylinder is installed, high temperature resistant and cooling gas is injected into the air nozzle 8 to inflate the push plate 6. After the photovoltaic power cable is connected, it is wrapped in a fixed position in the waterproof cylinder 1 to avoid movement affecting the waterproof effect.

[0038] The outer ends of the waterproof tube 1 and the movable arc plate 2 are fixedly connected to the waterproof outer ring 14 and the waterproof inner ring 13 respectively. The outer ends of the waterproof outer ring 14 and the waterproof inner ring 13 are in contact with the photovoltaic power cables respectively. The material of the waterproof outer ring 14 and the waterproof inner ring 13 is a high-temperature resistant flexible material.

[0039] When the present application is in use: by wrapping the waterproof cylinder 1 around the outer end of the photovoltaic power cable and pushing the movable arc plate 2 at the same time, when the tail end of the movable arc plate 2 is stuck in the positioning groove 4, the movable triangular block 11 follows the elasticity of the linkage spring 9 at the outer end of the positioning shaft 10 and is stuck in a part of the fan-shaped groove 12 at the tail end of the movable arc plate 2, thereby realizing the positioning between the movable arc plate 2 and the waterproof cylinder 1; the external air pump is clamped on the air nozzle 8, and gas is injected into the air groove 5 to make the push plate 6 swell. After the photovoltaic power cable is connected, it is wrapped in a fixed position in the waterproof cylinder 1 to avoid movement affecting the waterproof effect.

[0040] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention are included in the scope of the claims of the present invention.

Claims

1. Waterproof structure of a photovoltaic power cable comprising a waterproof tube (1), characterized in that, The inner end of the waterproof cylinder (1) is provided with an arc groove (3), the inner end of the arc groove (3) is provided with a movable arc plate (2), the outer end of the waterproof cylinder (1) is provided with a positioning groove (4), the inner end of the positioning groove (4) is provided with a fan-shaped groove (12), the inner end of the fan-shaped groove (12) is provided with a positioning shaft (10), the outer end of the positioning shaft (10) is wound with a linkage spring (9), the outer end of the linkage spring (9) is provided with a movable triangular block (11), the inner end of the movable arc plate (2) is provided with an air groove (5), the inner end of the air groove (5) is provided with two groups of linkage shafts (7), the outer ends of the two groups of linkage shafts (7) are provided with push plates (6), the outer end of the air groove (5) is provided with an air nozzle (8), the outer ends of the waterproof cylinder (1) and the movable arc plate (2) are respectively provided with a waterproof outer ring (14) and a waterproof inner ring (13).

2. The waterproof structure of a photovoltaic power cable according to claim 1, characterized in that, The movable arc plate (2) slides inward and outward along the arc groove (3); the positioning groove (4) is engaged with the outer end of the movable arc plate (2); the inner end of the positioning groove (4) is connected to the fan-shaped groove (12); and the positioning shaft (10) is fixed to the inner end of the fan-shaped groove (12).

3. The waterproof structure of a photovoltaic power cable according to claim 2, characterized in that, One end of the linkage spring (9) is fixed on the positioning shaft (10), and the other end of the linkage spring (9) is fixed on the inner end of the movable triangular block (11). The movable triangular block (11) rotates inward and outward along the fan-shaped groove (12).

4. The waterproof structure of a photovoltaic power cable according to claim 3, characterized in that, The air groove (5) is embedded in the inner end of the movable arc plate (2), and the two ends of the air groove (5) are fixedly connected to a group of linkage shafts (7), and the two groups of linkage shafts (7) are movably connected to the two ends of the push plate (6), respectively. The material of the push plate (6) is a high-temperature resistant flexible material.

5. The waterproof structure of a photovoltaic power cable according to claim 4, characterized in that, The edge of the push plate (6) is elastically fixed to the air groove (5), the outer end of the air groove (5) is connected to the air nozzle (8), and a self-locking mechanism is provided in the air nozzle (8).

6. The waterproof structure of a photovoltaic power cable according to claim 5, characterized in that, The outer ends of the waterproof cylinder (1) and the movable arc plate (2) are fixedly connected to the waterproof outer ring (14) and the waterproof inner ring (13), respectively. The outer ends of the waterproof outer ring (14) and the waterproof inner ring (13) are in contact with the photovoltaic power cables, respectively. The material of the waterproof outer ring (14) and the waterproof inner ring (13) is a high-temperature resistant flexible material.

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