A solar photovoltaic cable

Abstract

The present invention belongs to the technical field of insulated conductors or cables, and discloses a solar photovoltaic cable, including a cable body, the outside of the cable body is wrapped with a plurality of shells, and the shells are arranged in sequence along the axial direction of the cable body; a connecting column fixed to the cable body is arranged at the top of the inner ring of the shell, and a guide channel is formed between the shell and the cable body; an air guide hole is also arranged at the top of the shell, and an air guide ring is arranged in the air guide hole, and also includes a rotating shaft located in the air guide ring, a mounting block rotatably connected to the rotating shaft is fixed in the air guide ring, one end of the rotating shaft is located in the air guide ring, and the other end is located outside the air guide ring, and a fan blade that can guide the gas in the shell is arranged on one end of the rotating shaft located in the air guide ring, and a blade is arranged on one end of the rotating shaft located in the air guide ring. The present invention solves the problem that the current cable does not have the functions of wear resistance and high temperature resistance, cannot adapt to the use environment of the photovoltaic industry, and leads to a short service life of the cable.

Description

Technical Field

[0001] The invention belongs to the technical field of insulated conductors or cables, and in particular relates to a solar photovoltaic cable. Background Art

[0002] For the sustainable development of mankind, the utilization of sustainable renewable resources has become the current trend of social development. The photovoltaic industry, which relies on the endless and inexhaustible solar energy, is the industry with the most development prospects. Photovoltaic equipment needs to use cables when generating electricity, and photovoltaic panels are usually installed in places with good sunshine in the wild. The environment is relatively harsh, and the surrounding ambient temperature is high. In higher places, the wind is strong, which is very easy to cause wear and tear after the cable is installed. The current cables do not have the functions of wear resistance and high temperature resistance, which will result in a short service life of the cables. Therefore, the present invention provides a solar photovoltaic cable that can be applied to the photovoltaic industry and has a long service life. Summary of the invention

[0003] The present invention is intended to provide a solar photovoltaic cable to solve the problem that the current cables do not have the functions of wear resistance and high temperature resistance and cannot adapt to the use environment of the photovoltaic industry, resulting in a short service life of the cables.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a solar photovoltaic cable, comprising a cable body, the outside of the cable body is wrapped with a plurality of shells, and the shells are arranged in sequence along the axial direction of the cable body; a connecting column fixed to the cable body is arranged at the top of the inner circle of the shell, and a guide channel is formed between the shell and the cable body; an air guide hole is also arranged on the top of the shell, an air guide ring is arranged in the air guide hole, and also includes a rotating shaft located in the air guide ring, a mounting block rotatably connected to the rotating shaft is fixed in the air guide ring, one end of the rotating shaft is located in the air guide ring, and the other end is located outside the air guide ring, a fan blade that can guide the gas in the shell is arranged on the end of the rotating shaft located in the air guide ring, and a blade is arranged on the end of the rotating shaft located in the air guide ring.

[0005] In the above technical solution, the shell is arranged outside the cable body to protect the cable body, so as to prevent the cable from being corroded when used in special environments, thereby improving the protection effect of the cable body. In addition, a guide channel is formed between the cable body and the protective cover, through which gas can flow, so that the cable body can be cooled to reduce the probability of damage to the cable body during use.

[0006] Because the cable is located at high altitude during use, the wind is strong, which will blow the blades to rotate, thereby driving the shaft to rotate and realizing synchronous rotation of the fan blades. The fan blades will generate airflow, which will draw air from the guide channel, so that the gas can flow in the guide channel and complete the cooling of the cable body.

[0007] In a preferred embodiment of the present invention, the connecting column includes a base fixed on the cable body and a connecting rod fixed to the shell, the top of the base is provided with a groove, the bottom of the connecting rod is provided with a suction cup that can cooperate with the groove, the suction cup is provided with a through hole, a flow channel connected to the through hole is provided in the connecting rod, and a guide hole connected to the flow channel is also provided on the connecting rod; a sealing block is vertically slidably connected in the flow channel, and the sealing block is conical; a driving rod for pushing the sealing block to move is threadedly connected to the shell.

[0008] In a preferred embodiment of the present invention, the driving rod is rotatably connected to the sealing block.

[0009] In a preferred embodiment of the present invention, a guide vane is provided on the top of the inner side of the shell.

[0010] In a preferred embodiment of the present invention, a sensor is disposed at the lower portion of the cable, and when the housing rotates, the guide vane comes into contact with the sensor, thereby sending out a signal.

[0011] In another preferred embodiment of the present invention, the housing is rectangular, and a foldable flexible metal is disposed inside the housing.

[0012] In another preferred embodiment of the present invention, magnets that attract each other are arranged on the side surfaces of the shell along the length direction.

[0013] In another preferred embodiment of the present invention, the base includes a lower part and an upper part, the lower part is provided with a sliding groove, the upper part is vertically slidably connected in the lower part, and a spring is provided between the lower part and the bottom of the sliding groove.

[0014] In another preferred embodiment of the present invention, the cable body includes a main core, a filling layer, a supporting structure, a wrapping layer, a shielding layer and a sheath which are arranged in sequence from the inside to the outside. Multiple main cores are arranged and twisted into a cable, and the supporting mechanism is a flexible frame.

[0015] In another preferred embodiment of the present invention, a reinforcement layer is arranged between the wrapping layer and the shielding layer, the reinforcement layer includes a reinforcement core arranged outside the wrapping layer and a wire layer wrapped outside the reinforcement core, the reinforcement core is arranged along the circumference of the wrapping layer, and a strip groove is also arranged outside the wrapping layer for the reinforcement core to be set.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1It is a longitudinal cross-sectional view of an embodiment of the present application.

[0019] Figure 2 It is a transverse cross-sectional view of an embodiment of the present application.

[0020] Figure 3 It is a schematic diagram of the structure of the connecting column in the embodiment of the present application.

[0021] Figure 4 This is a schematic diagram of the structure of the air guide ring in the embodiment of the present application.

[0022] The figure marks in the drawings of the specification include: cable body 1, shell 2, main core 3, filling layer 4, frame 5, wrapping layer 6, shielding layer 7, sheath 8, reinforcing core 9, wire layer 10, guide channel 11, splicing plate 12, air guide ring 13, mounting block 14, protrusion 15, rotating shaft 16, fan blade 17, blade 18, connecting column 19, base 20, connecting rod 21, upper part 22, lower part 23, sliding groove 24, groove 25, suction cup 26, through hole 27, flow channel 28, guide hole 29, sealing block 30, drive rod 31, guide plate 32, sensor 33. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it is to be understood that the terms “longitudinal”, “lateral”, “vertical”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0026] The present invention provides a solar photovoltaic cable, such as Figure 1As shown, in a preferred embodiment of the present invention, it includes a cable body 1 and a shell 2 wrapped outside the cable body 1, combined with Figure 2 As shown, the housing 2 is provided with a plurality of shells, and is arranged in sequence along the axial direction of the cable body 1. The cable body 1 includes a main core 3, a filling layer 4, a supporting structure, a wrapping layer 6, a shielding layer 7 and a sheath 8 arranged in sequence from the inside to the outside. The main core 3 is provided with a plurality of strands, and is twisted into a cable, and the supporting mechanism is a flexible frame 5. A filling layer 4 is provided between the main core 3 and the frame 5 to form a stable structure and reduce the gap between the main core 3 and the frame 5.

[0027] A reinforcement layer is arranged between the wrapping layer 6 and the shielding layer 7. The reinforcement layer includes a reinforcement core 9 arranged outside the wrapping layer 6 and a wire layer 10 wrapped outside the reinforcement core 9. The reinforcement core 9 is arranged along the circumference of the wrapping layer 6, and the reinforcement cores 9 are arranged closely in sequence. A strip groove for setting the reinforcement core 9 is also arranged outside the wrapping layer 6. The wire layer 10 is wound around the reinforcement core 9 to fix the reinforcement core 9.

[0028] The shell 2 is rectangular and can be rolled into a cylindrical shape. Magnets are provided on both sides of the shell 2 that are attached to each other after rolling, and the magnets attract each other, so that the shell 2 can maintain a stable cylindrical structure and wrap around the outer circumference of the cable body 1. A foldable flexible metal is embedded in the shell 2, which can support the shell 2 and keep the shell 2 in a stable cylindrical structure.

[0029] After the shell 2 is wrapped around the cable body 1, a flow guide channel 11 is formed between the shell 2 and the cable body 1. Multiple splicing plates 12 are provided at one end of the shell 2. After the shell 2 is rolled into a cylindrical shape, the splicing plates 12 are spliced ​​to seal one end of the shell 2. An air guide hole is provided on one side of the top of the shell 2 near the sealing end, and an air guide ring 13 is provided in the air guide hole. A mounting block 14 is provided on the air guide ring 13. A protrusion 15 is provided on the outer periphery of the mounting block 14, and the protrusion 15 is fixed to the inner wall of the air guide ring 13.

[0030] Combination Figure 4 As shown, it also includes a rotating shaft 16 that penetrates the mounting block 14 and is rotatably connected to the mounting block 14, one end of the rotating shaft 16 is located in the air guide ring 13, and the other end is located outside the air guide ring 13. A fan blade 17 that can guide the gas in the housing 2 is provided on the end of the rotating shaft 16 located in the air guide ring 13, and a blade 18 is provided on the end of the rotating shaft 16 located in the air guide ring 13.

[0031] The top of the inner circle of the housing 2 is provided with a connecting column 19 which can be fixed to the top of the cable body 1. The connecting column 19 includes a base 20 fixed to the cable body 1 and a connecting rod 21 fixed to the housing 2. Figure 3As shown, the base 20 includes a lower part 23 and an upper part 22. A vertical sliding groove 24 is arranged on the top surface of the lower part 23. The upper part 22 is vertically slidably connected in the lower part 23, and a spring is arranged between the lower part 23 and the bottom of the sliding groove 24. In this embodiment, a compression spring is selected, and the specific model is selected according to actual needs.

[0032] A groove 25 is provided at the top of the base 20, a suction cup 26 that can cooperate with the groove 25 is provided at the bottom of the connecting rod 21, a through hole 27 is provided on the suction cup 26, a flow channel 28 connected to the through hole 27 is provided in the connecting rod 21, and a guide hole 29 connected to the flow channel 28 is also provided on the connecting rod 21. A sealing block 30 is vertically slidably connected in the flow channel 28, and the sealing block 30 is tapered. A driving rod 31 that pushes the sealing block 30 to move is threadedly connected to the housing 2, and the driving rod 31 is rotatably connected to the sealing block 30.

[0033] A guide plate 32 is provided at the top of the inner side of the shell 2, and a sensor 33 is provided at the lower part 23 of the cable. When the shell 2 rotates, the guide plate 32 will come into contact with the sensor 33, thereby sending a signal to prompt that the shell 2 needs to be replaced or maintained.

[0034] The specific implementation process is as follows:

[0035] The support structure and the reinforcement layer provide support during the use of the cable, and make the cable stronger, thereby improving the service life of the cable. The shell 2 is arranged outside the cable body 1 to protect the cable. The shell 2 is fixed to the cable body 1 through the connecting column 19, fixed to the cable body 1 by the base 20, and fixed to the shell 2 by the connecting rod 21.

[0036] During installation, the driving rod 31 is rotated so that the driving rod 31 drives the sealing block 30 to move downward, so that the sealing block 30 slides through the guide hole 29, thereby sealing the flow channel 28. Then, the suction cup 26 is squeezed and fixed on the base 20, completing the fixing of the connecting rod 21 and the base 20, so as to achieve a stable connection between the housing 2 and the cable body 1.

[0037] During use, the temperature and height of the cable are relatively high, so the wind is relatively strong, which will drive the blades 18 to rotate, thereby realizing the rotation of the shaft 16. When the shaft 16 rotates, it will drive the fan blades 17 to rotate synchronously, thereby generating airflow and inhaling air from the air guide ring 13. When inhaling, the gas will be inhaled from the open end of the shell 2, and the gas will flow in the guide channel 11, thereby cooling the cable body 1 and the shell 2 to reduce damage to the cable body 1 and the shell 2 and increase the service life. When the gas flows in the guide channel 11, the guide plate 32 can be used to slow down the gas to reduce the damage to the shell 2 and the outside of the cable caused by the rapid flow of gas.

[0038] When the shell 2 becomes loose, it will rotate under the influence of strong wind at high altitude, so that the guide plate 32 contacts the sensor 33, sending a signal to prompt that the shell 2 needs maintenance. When the shell 2 is maintained, the suction cup 26 is placed in the groove 25 on the base 20, and then the suction cup 26 is pressed, and the guide hole 29 is sealed with the sealing block 30. During regular maintenance, if the shell 2 is damaged and needs to be replaced, the shell 2 is unfolded so that the shell 2 is no longer wrapped outside the cable body 1, and the drive rod 31 is twisted in the opposite direction, so that the sealing block 30 moves up, and the gas enters the suction cup 26 from the guide hole 29, so that the suction cup 26 and the base 20 are loosened, so that the shell 2 can be removed and replaced conveniently.

[0039] In the description of this specification, the description with reference to the terms "preferred embodiment", "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A solar photovoltaic cable, comprising a cable body, characterized in that: The outside of the cable body is wrapped with multiple shells, which are arranged in sequence along the axial direction of the cable body; a connecting column fixed to the cable body is arranged at the top of the inner ring of the shell, and a guide channel is formed between the shell and the cable body; an air guide hole is also arranged on the top of the shell, an air guide ring is arranged in the air guide hole, and also includes a rotating shaft located in the air guide ring, a mounting block rotatably connected to the rotating shaft is fixed in the air guide ring, one end of the rotating shaft is located in the air guide ring, and the other end is located outside the air guide ring, a fan blade that can guide the gas in the shell is arranged on the end of the rotating shaft located in the air guide ring, and a blade is arranged on the end of the rotating shaft located in the air guide ring; The connecting column includes a base fixed on the cable body and a connecting rod fixed to the shell, a groove is arranged on the top of the base, a suction cup which can cooperate with the groove is arranged on the bottom of the connecting rod, a through hole is arranged on the suction cup, a flow channel connected with the through hole is arranged in the connecting rod, and a guide hole connected with the flow channel is also arranged on the connecting rod; a sealing block is vertically slidably connected in the flow channel, and the sealing block is conical; a driving rod for pushing the sealing block to move is threadedly connected to the shell; the driving rod is rotatably connected to the sealing block; a guide plate is arranged on the top inner side of the shell; a sensor is arranged at the lower part of the cable, and when the shell rotates, the guide plate will come into contact with the sensor, thereby sending a signal.

2. A solar photovoltaic cable according to claim 1, characterized in that: The shell is rectangular, and foldable flexible metal is arranged inside the shell.

3. A solar photovoltaic cable according to claim 2, characterized in that: The side surfaces of the shell along the length direction are provided with magnets which attract each other.

4. A solar photovoltaic cable according to claim 3, characterized in that: The base comprises a lower part and an upper part, the lower part is provided with a sliding groove, the upper part is vertically slidably connected in the lower part, and a spring is provided between the lower part and the bottom of the sliding groove.

5. A solar photovoltaic cable according to claim 4, characterized in that: The cable body includes a main core, a filling layer, a supporting structure, a wrapping layer, a shielding layer and a sheath which are arranged in sequence from the inside to the outside. There are multiple main cores which are twisted into a cable, and the supporting structure is a flexible frame.

6. A solar photovoltaic cable according to claim 5, characterized in that: A reinforcement layer is arranged between the wrapping layer and the shielding layer. The reinforcement layer includes a reinforcement core arranged outside the wrapping layer and a wire layer wrapped outside the reinforcement core. The reinforcement core is arranged along the circumference of the wrapping layer. A strip groove for setting the reinforcement core is also arranged outside the wrapping layer.

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