Power unit transmission cable

Abstract

The utility model relates to the technical field of cables, in particular to a transmission cable for a power unit, which comprises an aluminum core conductor, a copper cladding layer fixedly connected to the outer surface of the aluminum core conductor, a shielding transmission layer structure fixedly connected to the outer surface of the copper cladding layer, and an armored reinforcing layer structure fixedly connected to the outer surface of the shielding transmission layer structure. The outer surface of the armored reinforcing layer structure is fixedly connected with an outer protection layer structure. According to the transmission cable for the power unit, electromagnetic interference can be effectively shielded through the shielding transmission layer structure, the stability of current transmission is ensured, the electric energy loss is reduced, the mechanical strength of the cable is enhanced through the armored reinforcing layer structure, the cable can resist external force damage, and finally, the transmission cable can be used for the power unit. The arranged outer protection layer structure can prevent the cable from being corroded by external environment factors such as high temperature, moisture and chemical corrosion, the insulation performance of the cable is prevented from being reduced, and the transmission efficiency and the safety of the cable are comprehensively improved.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a power unit transmission cable. Background Technology

[0002] In modern power systems, power transmission cables are a crucial component, widely used in power plants, substations, and various industrial power applications. They bear the heavy responsibility of efficiently and stably transmitting the electrical energy generated by power units to various power-consuming terminals. Whether it's the operation of large industrial equipment or the use of lighting and household appliances in daily life, the electrical energy transmitted by power transmission cables is indispensable. However, existing power transmission cables have many shortcomings. On the one hand, in terms of transmission efficiency, due to the inherent resistance characteristics of the cables, significant energy loss occurs during long-distance transmission, resulting in a large waste of electrical energy and increasing power generation costs. On the other hand, in terms of safety, some cables have limited insulation performance and are easily affected by environmental factors such as high temperature, humidity, and chemical corrosion, leading to safety accidents such as leakage and short circuits, posing a serious threat to the safety of personnel and equipment. Utility Model Content

[0003] The main purpose of this utility model is to provide a power unit transmission cable that can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A power unit transmission cable includes an aluminum core conductor, a copper cladding layer fixedly connected to the outer surface of the aluminum core conductor, a shielding transmission layer structure fixedly connected to the outer surface of the copper cladding layer, an armored reinforcement layer structure fixedly connected to the outer surface of the shielding transmission layer structure, and an outer protective layer structure fixedly connected to the outer surface of the armored reinforcement layer structure.

[0006] The shielded transmission layer structure includes an ethylene propylene rubber sheath, with a through hole at the upper center of the ethylene propylene rubber sheath. A metal shielding sheath is fixedly connected to the outer surface of the ethylene propylene rubber sheath, and a polypropylene rope is filled between the metal shielding sheath and the ethylene propylene rubber sheath.

[0007] Preferably, the inner diameter area of ​​the perforation is equal to the sum of the diameter areas of the copper cladding and the aluminum core conductor, and the ethylene propylene rubber sheath is fixedly connected to the copper cladding through the perforation.

[0008] By adopting the above technical solution: the aluminum core conductor serves as the main conductive body to transmit electrical energy, the outer copper cladding layer enhances conductivity, the ethylene propylene rubber sheath provides insulation, waterproofing, and moisture protection, protecting the internal structure, the perforation facilitates the copper cladding layer and aluminum core conductor to pass through and connect tightly, ensuring overall stability, the metal shielding sheath shields against external electromagnetic interference, ensuring stable signal transmission, and the polypropylene rope filling the space makes the structure compact, buffers external forces, and comprehensively improves the cable performance.

[0009] Preferably, the armor reinforcement layer structure includes a copper strip armor layer, the inner wall of the copper strip armor layer is fixedly connected to the outer surface of the metal shielding sleeve layer, and a plurality of reinforcing steel wires are fixedly connected to the outer surface of the copper strip armor layer. A plurality of steel ring reinforcing ribs are embedded and fixedly connected to the ends of the plurality of reinforcing steel wires away from the copper strip armor layer.

[0010] By adopting the above technical solution: the copper strip armor layer outside the metal shielding layer can resist certain external pressure, the reinforcing steel wire enhances the tensile strength, and the steel ring reinforcing rib further improves the overall structural stability. The three work together to provide reliable mechanical protection for the cable, enabling it to adapt to complex and harsh operating environments.

[0011] Preferably, the reinforcing steel wires are arranged in a ring array, and the reinforcing steel rings are distributed at equal intervals.

[0012] By adopting the above technical solution, the reinforcing steel wires distributed in a ring array provide tensile support in all directions, and the steel ring reinforcing ribs distributed at equal intervals evenly disperse stress, thus jointly enhancing the strength of the cable structure and ensuring the stable operation of the cable.

[0013] Preferably, the outer protective layer structure includes an outer sheath, the inner wall of which has a plurality of steel wire grooves arranged in a ring array, and a plurality of reinforcing rib slots are formed between the plurality of steel wire grooves from top to bottom. The outer surface of the outer sheath is fixedly connected to an anti-rodent and anti-ant gnawing layer, and the outer surface of the anti-rodent and anti-ant gnawing layer is coated with an anti-corrosion coating.

[0014] By adopting the above technical solutions: the outer sheath provides basic protection for the cable, the steel wire groove and the reinforcing steel wire work together, the reinforcing rib slot is adapted to the steel ring reinforcing rib to stabilize the structure, the anti-rodent and anti-ant gnawing layer prevents rodent and ant damage, and the anti-corrosion coating isolates external corrosive substances. The multi-layer protection extends the service life of the cable and ensures the normal operation of the cable.

[0015] Preferably, the inner wall of the outer sheath is fixedly connected to the outer surface of the copper strip armor layer, the plurality of steel wire grooves are respectively engaged with a plurality of reinforcing steel wires, and the plurality of steel ring reinforcing ribs are respectively engaged with a plurality of reinforcing rib grooves.

[0016] By adopting the above technical solution: the outer sheath is tightly connected to the copper tape armor layer to form a stable whole; the steel wire groove and reinforcing steel wire, the reinforcing rib groove and the steel ring reinforcing rib are connected and matched to accurately position and strengthen the connection of each component, improve the strength of the cable structure, enable it to withstand greater external forces, and ensure the stable operation of the cable.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In this utility model, the EPDM rubber sheath is tightly connected to the copper cladding and aluminum core conductor through perforation, which reduces contact resistance and reduces additional power loss caused by poor contact. The EPDM rubber sheath, as an insulating material, can prevent current leakage and ensure that electrical energy is concentrated in the conductor for transmission. The metal shielding sheath can isolate external electromagnetic interference, ensure current stability, and avoid power loss caused by interference. The polypropylene rope filling makes the structure compact, maintains the relative position stability of each part, and avoids resistance changes and transmission instability caused by structural loosening. This comprehensively reduces power loss and power generation costs.

[0019] 2. In this utility model, the copper strip armor layer provides basic protection against external pressure and puncture. The ring-shaped reinforcing steel wires and the equidistantly arranged steel ring reinforcing ribs enhance the overall structural strength and stability, preventing the cable from being damaged by external deformation and internal insulation. The outer sheath of the outer protective layer fits tightly with the reinforcing layer through the steel wire groove and reinforcing rib groove, further reinforcing the structure. The rodent-proof layer prevents rodents from damaging the cable sheath. The anti-corrosion coating resists chemical corrosion and humid environments, reducing the risk of insulation performance degradation due to environmental factors and reducing the occurrence of accidents such as leakage and short circuits, thereby ensuring the safety of personnel and equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a power unit transmission cable according to the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the shielding transmission layer of a power unit transmission cable according to the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of the armored reinforcement layer of a power unit transmission cable according to the present invention;

[0023] Figure 4 This is a schematic diagram of the overall structure of the outer protective layer of a power unit transmission cable according to the present invention.

[0024] In the diagram: 1. Aluminum core conductor; 2. Copper cladding; 3. Shielding transmission layer structure; 4. Armored reinforcement layer structure; 5. Outer protective layer structure; 31. EPDM rubber sheath; 32. Perforation; 33. Metal shielding sheath; 34. Polypropylene rope; 41. Copper strip armor layer; 42. Reinforcing steel wire; 43. Steel ring reinforcing rib; 51. Outer sheath; 52. Steel wire groove; 53. Reinforcing rib groove; 54. Rodent and ant gnaw prevention layer; 55. Anti-corrosion coating. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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 limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figure 1-4 This utility model provides a technical solution:

[0029] A power transmission cable includes an aluminum core conductor 1, a copper cladding layer 2 fixedly connected to the outer surface of the aluminum core conductor 1, a shielded transmission layer structure 3 fixedly connected to the outer surface of the copper cladding layer 2, an armored reinforcement layer structure 4 fixedly connected to the outer surface of the shielded transmission layer structure 3, and an outer protective layer structure 5 fixedly connected to the outer surface of the armored reinforcement layer structure 4.

[0030] In this embodiment, the shielding transmission layer structure 3 includes an ethylene propylene rubber sheath 31. A through hole 32 is opened in the middle of the upper end of the ethylene propylene rubber sheath 31. A metal shielding sheath 33 is fixedly connected to the outer surface of the ethylene propylene rubber sheath 31. A polypropylene rope 34 is filled between the metal shielding sheath 33 and the ethylene propylene rubber sheath 31. The inner diameter area of ​​the through hole 32 is equal to the sum of the diameter areas of the copper cladding layer 2 and the aluminum core conductor 1. The ethylene propylene rubber sheath 31 is fixedly connected to the copper cladding layer 2 through the through hole 32.

[0031] The above scheme uses an aluminum core conductor 1 as the main conductor, covered with a copper cladding layer 2. Utilizing the excellent conductivity of copper, the overall resistance is reduced, thus minimizing power loss. An ethylene propylene rubber sheath 31 is fixedly connected to the copper cladding layer 2 through a perforation 32. The inner diameter of the perforation 32 is adapted to both the copper cladding layer 2 and the aluminum core conductor 1, ensuring a tight and stable connection and reducing contact resistance. A metal shielding sheath 33 isolates external electromagnetic interference, allowing for more stable current transmission and reducing additional losses caused by interference. A polypropylene rope 34 is placed between the two, making the structure compact and preventing transmission instability caused by a loose structure. This comprehensive approach ensures efficient power transmission and reduces power generation costs.

[0032] In this embodiment, the armor reinforcement layer structure 4 includes a copper strip armor layer 41. The inner wall of the copper strip armor layer 41 is fixedly connected to the outer surface of the metal shielding sleeve layer 33. A plurality of reinforcing steel wires 42 are fixedly connected to the outer surface of the copper strip armor layer 41. A plurality of steel ring reinforcing ribs 43 are embedded and fixedly connected to the ends of the plurality of reinforcing steel wires 42 away from the copper strip armor layer 41. The plurality of reinforcing steel wires 42 are arranged in a ring array, and the plurality of steel ring reinforcing ribs 43 are distributed at equal intervals. The outer protective layer structure 5 includes an outer sheath 51. The inner wall of the outer sheath 51 has a ring array of several wire grooves 52, and several reinforcing rib slots 53 are formed between the several wire grooves 52 from top to bottom. The outer surface of the outer sheath 51 is fixedly connected to an anti-rodent and anti-ant chewing layer 54, and the outer surface of the anti-rodent and anti-ant chewing layer 54 is coated with an anti-corrosion coating 55. The inner wall of the outer sheath 51 is fixedly connected to the outer surface of the copper strip armor layer 41. The several wire grooves 52 are respectively engaged with several reinforcing wires 42, and the several steel ring reinforcing ribs 43 are respectively engaged with several reinforcing rib slots 53.

[0033] Through the above scheme: the metal shielding sleeve 33 is fixedly connected to the copper strip armor layer 41 to provide mechanical protection and electromagnetic shielding for the interior; the reinforcing steel wires 42 are distributed in a ring array; the steel ring reinforcing ribs 43 are equidistantly embedded to enhance the overall structural strength and resist external impact; the outer sheath 51 is connected to the copper strip armor layer 41; the steel wire groove 52 is engaged with the reinforcing steel wires 42; the reinforcing rib slot 53 is engaged with the steel ring reinforcing ribs 43 to further stabilize the structure; the rodent-proof layer 54 prevents rodent damage; the anti-corrosion coating 55 resists chemical corrosion; multiple protections reduce the risk of leakage and short circuit, and ensure the safety of personnel and equipment.

[0034] It should be noted that this utility model is a power unit transmission cable. During use, firstly, the aluminum core conductor 1 is covered with a copper cladding layer 2. The aluminum core provides basic conductivity, while the copper cladding layer 2 reduces resistance and minimizes power loss during long-distance transmission. The ethylene propylene rubber sheath 31 is tightly connected to the copper cladding layer 2 through perforations 32, ensuring stable contact and further reducing contact resistance. The metal shielding sheath 33 prevents external electromagnetic interference, ensuring stable current transmission and reducing additional losses caused by interference. The ethylene propylene rubber sheath 31 serves as an insulation layer to prevent leakage. The copper tape armor... Layer 41 is connected to the metal shielding layer 33, providing mechanical protection. The reinforcing steel wires 42 distributed in a ring array and the steel ring reinforcing ribs 43 distributed at equal intervals enhance the structural strength and resist external impact. The outer sheath 51 is connected to the reinforcing steel wires 42 through the steel wire groove 52 and the reinforcing rib slots 53 and the steel ring reinforcing ribs 43, further stabilizing the structure. The rodent and ant gnawing layer 54 prevents rodent and ant damage, and the anti-corrosion coating 55 resists chemical corrosion, reduces the risk of leakage and short circuit, and ensures the safety of personnel and equipment. Therefore, the various structures of each cable cooperate with each other to effectively improve transmission efficiency and safety.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A power unit transmission cable, comprising an aluminum core conductor (1), characterized in that: The outer surface of the aluminum core conductor (1) is fixedly connected to a copper cladding layer (2), the outer surface of the copper cladding layer (2) is fixedly connected to a shielding transmission layer structure (3), the outer surface of the shielding transmission layer structure (3) is fixedly connected to an armor reinforcement layer structure (4), and the outer surface of the armor reinforcement layer structure (4) is fixedly connected to an outer protective layer structure (5). The shielding transmission layer structure (3) includes an ethylene propylene rubber sheath (31), with a through hole (32) in the middle of the upper end of the ethylene propylene rubber sheath (31), and a metal shielding sheath (33) is fixedly connected to the outer surface of the ethylene propylene rubber sheath (31). A polypropylene rope (34) is filled between the metal shielding sheath (33) and the ethylene propylene rubber sheath (31).

2. The power unit transmission cable according to claim 1, characterized in that: The inner diameter area of ​​the perforation (32) is equal to the sum of the diameter areas of the copper cladding (2) and the aluminum core conductor (1), and the ethylene propylene rubber sheath (31) is fixedly connected to the copper cladding (2) through the perforation (32).

3. The power unit transmission cable according to claim 1, characterized in that: The armor reinforcement layer structure (4) includes a copper strip armor layer (41), the inner wall of the copper strip armor layer (41) is fixedly connected to the outer surface of the metal shielding sleeve layer (33), and a number of reinforcing steel wires (42) are fixedly connected to the outer surface of the copper strip armor layer (41). A number of steel ring reinforcing ribs (43) are embedded and fixedly connected to one end of the number of reinforcing steel wires (42) away from the copper strip armor layer (41).

4. The power unit transmission cable according to claim 3, characterized in that: Several of the reinforcing steel wires (42) are arranged in a ring array, and several of the steel ring reinforcing ribs (43) are distributed at equal intervals.

5. A power unit transmission cable according to claim 3, characterized in that: The outer protective layer structure (5) includes an outer sheath (51). The inner wall of the outer sheath (51) has a number of wire grooves (52) arranged in a ring. A number of reinforcing rib slots (53) are opened between the wire grooves (52) from top to bottom. The outer surface of the outer sheath (51) is fixedly connected with a rodent-proof layer (54). The outer surface of the rodent-proof layer (54) is coated with an anti-corrosion coating (55).

6. A power unit transmission cable according to claim 5, characterized in that: The inner wall of the outer sheath (51) is fixedly connected to the outer surface of the copper strip armor layer (41), and several steel wire grooves (52) are respectively engaged with several reinforcing steel wires (42), and several steel ring reinforcing ribs (43) are respectively engaged with several reinforcing rib grooves (53).

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