A new energy photovoltaic smart power cable

Abstract

This invention belongs to the field of power cable technology, specifically a new energy photovoltaic smart power cable, including an outer protective layer. Inside the outer protective layer, a positioning cylinder and multiple conductors are arranged. The positioning cylinder is located at the center of the outer protective layer, and the multiple conductors surround the positioning cylinder. A fastening mechanism is provided between the positioning cylinder and the conductors; the fastening mechanism is used to fix the multiple conductors around the periphery of the positioning cylinder. A limit plate is provided on the positioning cylinder, and the limit plate and the fastening mechanism cooperate to fix the conductors. A heat dissipation mechanism is also provided between the positioning cylinder and the conductors. The heat dissipation mechanism includes multiple mounting rings and heat dissipation rings. The heat dissipation rings are mounted on the mounting rings, and the multiple mounting rings are fixedly connected by ventilation pipes. The ventilation pipes have heat dissipation grooves, and the positioning cylinder has strip grooves. Through the above structural combination, rapid heat dissipation and excellent tensile strength can be achieved.

Description

Technical Field

[0001] This invention belongs to the field of power cable technology, specifically a new energy photovoltaic smart power cable. Background Technology

[0002] New energy photovoltaic smart power cable is a type of power cable with intelligent characteristics applied in the field of new energy photovoltaic power generation. It is characterized by high conductivity, good insulation performance, intelligent detection function and strong anti-electromagnetic interference capability. Power cables are generally divided into single-core cables and multi-core cables. Multi-core cables refer to cables with more than one insulated core, which reduces the skin effect of the cable and thus reduces line loss.

[0003] The specific structure of a multi-core cable includes multiple coaxially arranged inner covers, inside which the cable cores are placed. The outer surfaces of the multiple inner covers are covered by a protective outer sheath. In the prior art, the multiple inner covers are usually set independently and lack a positioning structure between them. When subjected to external forces such as traction, compression and torsion, the inner covers are prone to detach from the protective outer sheath, which makes the multiple inner covers non-concentric, resulting in uneven electric field distribution of the cable and affecting its heat dissipation performance.

[0004] Existing cables typically use internal heat-dissipating materials to dissipate heat and exhaust heat through ventilation holes. However, after prolonged use, these ventilation holes are prone to blockage, which affects heat dissipation performance. In addition, outdoor cables, due to their high location, are easily subjected to wind pulls, which can cause cable damage.

[0005] Therefore, the present invention provides a new energy photovoltaic smart power cable. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A new energy photovoltaic smart power cable of this invention includes an outer protective layer. Inside the outer protective layer, a positioning cylinder and multiple conductors are arranged. The positioning cylinder is located at the center of the outer protective layer, and the multiple conductors surround the positioning cylinder. A fastening mechanism is provided between the positioning cylinder and the conductors. The fastening mechanism is used to fix the multiple conductors around the periphery of the positioning cylinder. A limiting plate is provided on the positioning cylinder, and the limiting plate and the fastening mechanism cooperate to fix the conductors. A heat dissipation mechanism is also provided between the positioning cylinder and the conductors. The heat dissipation mechanism includes multiple mounting rings and heat dissipation rings. The heat dissipation rings are mounted on the mounting rings, and the multiple mounting rings are fixedly connected by a ventilation pipe. A heat dissipation groove is formed on the ventilation pipe, and a strip groove is formed on the positioning cylinder. The heat dissipation groove and the strip groove cooperate to form convection. An air bladder is provided on the inner wall of the outer protective layer, and a transmission mechanism is provided between the air bladder and the ventilation pipe. The transmission mechanism is used to unclog the dirt on the heat dissipation groove.

[0008] Preferably, the fastening mechanism includes a threaded sleeve and a conical ring, the threaded sleeve and the conical ring are fixedly connected, the conical ring is connected to one of the mounting rings, the conical ring has multiple gaps, and a conical cover is threadedly connected to the threaded sleeve, the conical cover and the conical ring cooperate.

[0009] Preferably, a limiting ring is slidably connected between the conical rings, and the inner wall of the conical cover is provided with a thread that mates with the threaded sleeve. The conical part of the conical cover corresponds to the conical ring.

[0010] Preferably, the mounting ring is connected to the positioning cylinder, the heat dissipation ring is disposed on the front and rear sides of the mounting ring, the conductor passes through the heat dissipation ring, the two mounting rings form a group, and the two mounting rings are located between the strip grooves, that is, the two ends of the strip grooves are outside the two mounting rings.

[0011] Preferably, the transmission mechanism includes a positioning ring, the positioning ring having a hollow structure inside, the positioning ring being located in the middle of the heat dissipation groove, and an air pipe connecting the airbag and the positioning ring.

[0012] Preferably, the two ends of the positioning ring are slidably connected to slip rings, a first spring is connected between the two slip rings, a connecting rod is fixedly connected to the slip ring, the connecting rod extends to the outside of the positioning ring and is fixedly connected to a moving block, and the moving block is slidably connected to the heat dissipation groove.

[0013] Preferably, the conductor consists of an inner cable core and an outer shell. The outer shell consists of a flame-retardant layer, an inner shielding layer, an insulation layer, and an outer shielding layer from the inside out. The cable core is wrapped inside the outer shell and has multiple cable cores.

[0014] Preferably, an anti-stretching mechanism is provided between the two threaded sleeves. The anti-stretching mechanism includes multiple connecting plates and a movable plate. The connecting plates are connected to the mounting ring, and the multiple connecting plates and movable plates are interconnected. A fixing ring is provided between the two limiting rings. The fixing ring divides the multiple connecting plates and movable plates into two groups, and the connecting plate near the fixing ring is slidably connected to the fixing ring.

[0015] Preferably, the connecting plate is a hollow structure, and a second spring is provided inside the connecting plate, the second spring being connected to the movable plate.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. The new energy photovoltaic smart power cable of the present invention, through the cooperation of the positioning cylinder and the fastening mechanism, can fix multiple conductors on the positioning cylinder, preventing the internal conductors and other components from separating when the cable is stretched or dragged, while improving the concentricity of the conductors, thereby improving the electrical performance and insulation performance of the conductors.

[0018] 2. The new energy photovoltaic smart power cable of the present invention, in which the heat dissipation mechanism and the positioning cylinder are combined, can not only dissipate heat, but also support and position multiple conductors through multiple mounting rings and heat dissipation rings. The heat dissipation rings directly cover the outer surface of the conductors, and part of the heat is directly transferred to the heat dissipation rings, while the other part of the heat is dissipated to the outside of the positioning cylinder through the strip grooves on the positioning cylinder. At the same time, the ventilation pipes provided on the heat dissipation rings can also transfer heat to other mounting rings, and the heat dissipation grooves provided on the ventilation pipes can also form convection with the strip grooves opened on the positioning cylinder, thereby improving the heat dissipation efficiency.

[0019] 3. The new energy photovoltaic smart power cable of the present invention, with the cooperation of the transmission mechanism and the air bag, can not only buffer the cable when it is squeezed and stretched, converting the impact force into the elastic potential energy of the air bag, but also use the gas inside the air bag to drive the transmission mechanism to move, thereby scraping off the dust and dirt on the heat dissipation groove, thus avoiding the blockage of the heat dissipation groove and the resulting deterioration of the heat dissipation effect.

[0020] 4. The new energy photovoltaic smart power cable of the present invention, through the set tensioning mechanism, when the cable is pulled by wind in the air, the relative movement of the connecting plate and the moving plate stretches the second spring, thereby converting the tension into elastic potential energy, thus reducing the damage of the tension force to the cable. At the same time, since multiple connecting plates and moving plates are relatively independent and slide connected to each other, they are more likely to deform, further offsetting the tension force, thereby protecting the conductor from damage. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the conductor structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the anti-stretching mechanism in this invention;

[0025] Figure 4 This is a schematic diagram of the fastening mechanism structure in this invention;

[0026] Figure 5 This is a cross-sectional view of the fastening mechanism in this invention;

[0027] Figure 6 This is a schematic diagram of the heat dissipation mechanism in this invention;

[0028] Figure 7 This is a schematic diagram of the heat dissipation mechanism and the positioning cylinder in this invention;

[0029] Figure 8 This is a schematic diagram of the transmission mechanism in this invention;

[0030] Figure 9 This is the present invention. Figure 8 Enlarged view of point A in the middle;

[0031] Figure 10 This is a sectional view of the positioning ring in the transmission mechanism of this invention;

[0032] Figure 11 This is a schematic diagram of the anti-stretching mechanism in this invention.

[0033] In the diagram: 1. Outer protective layer; 2. Positioning cylinder; 21. Limiting plate; 22. Strip groove; 3. Conductor; 31. Outer shielding layer; 32. Insulation layer; 33. Inner shielding layer; 34. Flame retardant layer; 4. Fastening mechanism; 41. Threaded sleeve; 42. Conical ring; 43. Gap; 44. Limiting ring; 45. Conical cover; 5. Heat dissipation mechanism; 51. Mounting ring; 52. Heat dissipation ring; 53. Ventilation pipe; 54. Heat dissipation groove; 6. Transmission mechanism; 61. Positioning ring; 62. Air pipe; 63. Moving block; 64. Slip ring; 65. Connecting rod; 66. First spring; 7. Anti-stretching mechanism; 71. Connecting plate; 72. Moving plate; 73. Fixing ring; 74. Second spring; 8. Airbag. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] Example 1: As Figures 1 to 6As shown in the figure, a new energy photovoltaic smart power cable according to an embodiment of the present invention includes an outer protective layer 1. A positioning cylinder 2 and multiple conductors 3 are disposed inside the outer protective layer 1. The positioning cylinder 2 is located at the center of the outer protective layer 1, and the multiple conductors 3 surround the positioning cylinder 2. A fastening mechanism 4 is provided between the positioning cylinder 2 and the conductors 3. The fastening mechanism 4 is used to fix the multiple conductors 3 to the periphery of the positioning cylinder 2. The conductors 3 consist of an inner cable core and an outer shell. The outer shell, from the inside out, consists of a flame-retardant layer 34, an inner shielding layer 33, an insulation layer 32, and an outer shielding layer 31. The cable core is wrapped inside the outer shell and multiple conductors are disposed therein. The cable core has a positioning cylinder 2 with a limiting plate 21. The limiting plate 21 and the fastening mechanism 4 work together to fix the conductor 3. The fastening mechanism 4 includes a threaded sleeve 41 and a conical ring 42. The threaded sleeve 41 and the conical ring 42 are fixedly connected. The conical ring 42 is connected to one of the mounting rings 51. The conical ring 42 has multiple gaps 43. The threaded sleeve 41 is threaded with a conical cover 45. The conical cover 45 and the conical ring 42 work together. The conical rings 42 are slidably connected with a limiting ring 44. The inner wall of the conical cover 45 is provided with threads that work with the threaded sleeve 41. The conical part of the conical cover 45 corresponds to the conical ring 42.

[0036] The above-mentioned technical solution uses a fastening mechanism 4 to fix multiple conductors 3 around the positioning cylinder 2. The limiting plate 21 on the positioning cylinder 2 works in conjunction with the fastening mechanism 4 to fix multiple conductors 3 on the positioning cylinder 2, preventing the conductors 3 from separating from other components when the cable is stretched or dragged. At the same time, it improves the concentricity of the conductors 3, thereby improving the electrical performance of the conductors 3. The working process of the fastening mechanism 4 is as follows: first, the conical cover 45 is rotated, and the conical cover 45 moves on the threaded sleeve 41 until the conical part of the conical cover 45 gradually squeezes the conical ring 42, thereby deforming the conical ring 42 and squeezing the outer shell of the conductor 3. The conductor 3 and the limiting plate 21 on the positioning cylinder 2 are engaged.

[0037] like Figures 6 to 7 As shown, a heat dissipation mechanism 5 is also provided between the positioning cylinder 2 and the conductor 3. The heat dissipation mechanism 5 includes multiple mounting rings 51 and heat dissipation rings 52. The heat dissipation rings 52 are mounted on the mounting rings 51. The multiple mounting rings 51 are fixedly connected by ventilation pipes 53. The ventilation pipes 53 are provided with heat dissipation grooves 54. The positioning cylinder 2 is provided with strip grooves 22. The heat dissipation grooves 54 and strip grooves 22 cooperate to form convection. The mounting rings 51 are connected to the positioning cylinder 2. The heat dissipation rings 52 are located on the front and rear sides of the mounting rings 51. The conductor 3 passes through the heat dissipation rings 52. Two mounting rings 51 form a group, and the two mounting rings 51 are located between the strip grooves 22, that is, the two ends of the strip grooves 22 are outside the two mounting rings 51.

[0038] The heat dissipation mechanism 5 and the positioning cylinder 2 work together to dissipate heat from the conductor 3 when it gets too hot. At the same time, multiple mounting rings 51 and heat dissipation rings 52 can support and position multiple conductors 3. The heat dissipation rings 52 directly cover the outer surface of the conductor 3. Some of the heat is directly transferred to the heat dissipation rings 52, and the other part of the heat is dissipated to the outside of the positioning cylinder 2 through the strip grooves 22 on the positioning cylinder 2. Meanwhile, the ventilation pipes 53 on the heat dissipation rings 52 can also transfer heat to other mounting rings 51. Furthermore, the heat dissipation grooves 54 on the ventilation pipes 53 can also form convection with the strip grooves 22 on the positioning cylinder 2, thereby increasing the heat dissipation efficiency.

[0039] Example 2: Figures 8 to 10 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: an airbag 8 is provided on the inner wall of the outer protective layer 1, and a transmission mechanism 6 is provided between the airbag 8 and the ventilation pipe 53. The transmission mechanism 6 is used to unclog the dirt on the heat dissipation groove 54. The transmission mechanism 6 includes a positioning ring 61, which has a hollow structure inside. The positioning ring 61 is located in the middle of the heat dissipation groove 54. An air pipe 62 is connected between the airbag 8 and the positioning ring 61. Slip rings 64 are slidably connected to both ends of the positioning ring 61. A first spring 66 is connected between the two slip rings 64. A connecting rod 65 is fixedly connected to the slip ring 64. The connecting rod 65 extends to the outside of the positioning ring 61 and is fixedly connected to a moving block 63. The moving block 63 is slidably connected to the heat dissipation groove 54.

[0040] The coordinated operation of the transmission mechanism 6 and the airbag 8 not only buffers the cable when it is compressed or stretched, converting the impact force into the elastic potential energy of the airbag 8, but also causes the gas inside the airbag 8 to expand due to compression. The expanded gas enters the positioning ring 61 through the air pipe 62, thereby compressing the slip ring 64 inside the positioning ring 61. The slip ring 64 synchronously drives the connecting rod 65 and the moving block 63 to move. At the same time, the first spring 66 is stretched. As the moving block 63 slides in the heat dissipation groove 54, it scrapes off the dust and dirt on the heat dissipation groove 54, thereby preventing the heat dissipation groove 54 from becoming blocked and thus reducing the heat dissipation effect.

[0041] like Figure 3 and Figure 11 As shown, an anti-stretch mechanism 7 is provided between the two threaded sleeves 41. The anti-stretch mechanism 7 includes multiple connecting plates 71 and a movable plate 72. The connecting plates 71 are connected to the mounting ring 51. The multiple connecting plates 71 and the movable plate 72 are connected to each other. A fixing ring 73 is provided between the two limiting rings 44. The fixing ring 73 divides the multiple connecting plates 71 and the movable plate 72 into two groups. The connecting plates 71 near the fixing ring 73 are slidably connected to the fixing ring 73. The connecting plates 71 are hollow structures. A second spring 74 is provided inside the connecting plates 71. The second spring 74 is connected to the movable plate 72.

[0042] The anti-stretching mechanism 7 is composed of multiple connecting plates 71 and movable plates 72. Since the connecting plates 71 and movable plates 72 are slidably connected, when the cable is pulled by wind in the air, the connecting plates 71 and movable plates 72 can move relative to each other. The second spring 74 installed in the connecting plate 71 converts the tension into elastic potential energy, thereby reducing the damage of the tensile force to the cable. At the same time, since the multiple connecting plates 71 and movable plates 72 are relatively independent and slidably connected to each other, they are more likely to deform, further offsetting the tensile force and thus protecting the conductor 3 from damage.

[0043] Working principle: The fastening mechanism 4 and positioning cylinder 2 can position the conductor 3 and its internal cable wires, preventing the conductor 3 from separating from other parts when pulled or dragged. This also improves the concentricity of multiple conductors 3, thereby enhancing the cable's electrical and insulation performance. Simultaneously, the heat dissipation mechanism 5 not only improves heat dissipation through the large-area heat dissipation ring 52 and convection with the positioning cylinder 2, but also works with the positioning cylinder 2 to support and position the conductor 3, preventing relative movement between multiple conductors 3. The airbag 8 and transmission mechanism 6 not only... The airbag 8 can provide cushioning when the cable is squeezed or stretched. When the airbag 8 is squeezed, the gas inside enters the positioning ring 61 through the air pipe 62. The gas pushes the slip ring 64, connecting rod 65 and moving block 63 to move. As the moving block 63 slides, it cleans the dust and dirt in the heat dissipation groove 54 connected to it, avoiding blockage and affecting heat dissipation performance. The anti-stretching mechanism 7, through the cooperation of multiple connecting plates 71 and moving plates 72, can effectively deform and convert tensile force into elastic potential energy, thereby protecting the conductor 3 from damage.

[0044] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0045] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new energy photovoltaic smart power cable, comprising an outer protective layer (1), characterized in that: The outer protective layer (1) is provided with a positioning cylinder (2) and multiple conductors (3) inside. The positioning cylinder (2) is located at the center of the outer protective layer (1), and the multiple conductors (3) surround the positioning cylinder (2). A fastening mechanism (4) is provided between the positioning cylinder (2) and the conductors (3). The fastening mechanism (4) is used to fix multiple conductors (3) around the periphery of the positioning cylinder (2). The positioning cylinder (2) is provided with a limiting plate (21). The limiting plate (21) and the fastening mechanism (4) cooperate to fix the conductors (3). A heat dissipation mechanism (5) is also provided between the positioning cylinder (2) and the conductor (3). The heat dissipation mechanism (5) includes multiple mounting rings (51) and heat dissipation rings (52). The heat dissipation rings (52) are mounted on the mounting rings (51). The multiple mounting rings (51) are fixedly connected to each other through ventilation pipes (53). The ventilation pipes (53) are provided with heat dissipation grooves (54). The positioning cylinder (2) is provided with strip grooves (22). The heat dissipation grooves (54) and strip grooves (22) cooperate to form convection. An airbag (8) is provided on the inner wall of the outer protective layer (1), and a transmission mechanism (6) is provided between the airbag (8) and the ventilation pipe (53). The transmission mechanism (6) is used to unclog the dirt on the heat dissipation groove (54). The fastening mechanism (4) includes a threaded sleeve (41) and a conical ring (42). The threaded sleeve (41) and the conical ring (42) are fixedly connected. The conical ring (42) is connected to one of the mounting rings (51). The conical ring (42) has multiple gaps (43). A conical cover (45) is threaded onto the threaded sleeve (41). The conical cover (45) and the conical ring (42) cooperate with each other. The mounting ring (51) is connected to the positioning cylinder (2), the heat dissipation ring (52) is set on the front and rear sides of the mounting ring (51), the conductor (3) passes through the heat dissipation ring (52), the two mounting rings (51) are a group, and the two mounting rings (51) are located between the strip groove (22), that is, the two ends of the strip groove (22) are outside the two mounting rings (51); The transmission mechanism (6) includes a positioning ring (61), which has a hollow structure inside. The positioning ring (61) is located in the middle of the heat dissipation groove (54), and an air pipe (62) connects the airbag (8) and the positioning ring (61). The two ends of the positioning ring (61) are slidably connected to slip rings (64), and a first spring (66) is connected between the two slip rings (64). A connecting rod (65) is fixedly connected to the slip ring (64). The connecting rod (65) extends to the outside of the positioning ring (61) and is fixedly connected to a moving block (63). The moving block (63) is slidably connected to the heat dissipation groove (54).

2. The new energy photovoltaic smart power cable according to claim 1, characterized in that: Limiting rings (44) are slidably connected between the conical rings (42), and the inner wall of the conical cover (45) is provided with threads that cooperate with the threaded sleeve (41). The conical part of the conical cover (45) corresponds to the conical rings (42).

3. The new energy photovoltaic smart power cable according to claim 1, characterized in that: The conductor (3) consists of an inner cable core and an outer shell. The outer shell consists of a flame-retardant layer (34), an inner shielding layer (33), an insulation layer (32), and an outer shielding layer (31) from the inside out. The cable core is wrapped inside the outer shell and has multiple cable cores.

4. A new energy photovoltaic smart power cable according to claim 2, characterized in that: An anti-stretch mechanism (7) is provided between the two threaded sleeves (41). The anti-stretch mechanism (7) includes multiple connecting plates (71) and a moving plate (72). The connecting plates (71) are connected to the mounting ring (51). The multiple connecting plates (71) and the moving plate (72) are connected to each other. A fixing ring (73) is provided between the two limiting rings (44). The fixing ring (73) divides the multiple connecting plates (71) and the moving plate (72) into two groups. The connecting plates (71) and the fixing ring (73) near the fixing ring (73) are slidably connected.

5. A new energy photovoltaic smart power cable according to claim 4, characterized in that: The connecting plate (71) is a hollow structure, and a second spring (74) is provided inside the connecting plate (71). The second spring (74) is connected to the moving plate (72).

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