Power cable capable of being flexibly assembled

Abstract

The invention belongs to the technical field of electric power, and discloses a power cable capable of being flexibly assembled, which is provided with a cable core and a sheath layer coated outside the cable core, the cable core is formed by splicing a first power transmission unit, two same second power transmission units, two same third power transmission units and two same fourth power transmission units, and the cross section of the cable core is rectangular; the cable core is characterized in that the cross section of the first power transmission unit is rectangular, the cross sections of the second power transmission unit, the third power transmission unit and the fourth power transmission unit are L-shaped, every two of the second power transmission unit, the third power transmission unit and the fourth power transmission unit are not equal, and ten methods for splicing all the power transmission units into the cable core with the rectangular cross section exist. And the lengths and the widths of the rectangular cross section cable cores spliced by the ten methods are correspondingly equal. The invention has the main beneficial technical effects of high space utilization rate, suitability for pipelines with rectangular cross sections, and more convenience and flexibility in assembly.

Description

Technical Field

[0001] The invention belongs to the field of electric power technology, and in particular relates to a flexibly assembled power cable. Background Art

[0002] In the prior art, cables are usually laid after being formed, and the transmission unit in the cable is usually a circular structure. This structure results in a large gap in the cable core space, resulting in a waste of space, especially when laid in square or rectangular pipes. The space cannot be effectively utilized. As the transmission density and communication density increase, the pipeline rental fee becomes more and more expensive.

[0003] In actual use, different users generally have different demands for power capacity. Therefore, when power supply companies open the power supply for users, they provide meters and wires according to the load requirements; that is, the effective cross-sectional area of ​​the power supply wires will be different. In the prior art, using cables of the same specifications for different users obviously increases the burden of power supply companies. On the other hand, in the prior art, when using transmission lines of different specifications in the same cable, it will cause waste of space and waste of raw materials. For example, circular transmission lines and circular outer sheaths are often used. When multiple circular transmission lines are placed in the same circular outer sheath, if the diameters of the transmission lines are different, the space utilization rate in the outer sheath is very low. When using transmission lines of the same diameter, it causes waste of materials for users with different needs. For this reason, suppliers and the industry are in great need of cables that can make full use of space resources and allocate the needs of different electricity users.

[0004] CN213521141U discloses an underground assembled cable conduit, which is composed of a plurality of branch conduits, each of which is a long strip of conduits with a square cross section, and each of which has four corner surfaces that are quarter-cylindrical surfaces extending radially along the branch conduit, and each of which has the same radius of the quarter-cylindrical surfaces on the four corner surfaces, and each of which has four sides of two ends of the branch conduit that are provided with grooves distributed along the circumference of the branch conduit, and each of which has the same length. It also cannot solve the above-mentioned problem. Summary of the invention

[0005] In order to solve the above problems, the purpose of the present invention is to disclose a power cable that can be flexibly assembled, which is achieved by adopting the following technical solutions.

[0006] A flexibly assembled power cable comprises a cable core and a sheath layer covering the cable core; the cable core is composed of a first power transmission unit, two identical second power transmission units, two identical third power transmission units and two identical fourth power transmission units, and the cross section of the cable core is a rectangle; the characteristics are as follows: the cross section of the first power transmission unit is a rectangle, the cross sections of the second power transmission unit, the third power transmission unit and the fourth power transmission unit are all L-shaped, and the second power transmission unit, the third power transmission unit and the fourth power transmission unit are not equal to each other, there are ten methods for assembling all the power transmission units into a rectangular cross section cable core, and the lengths and widths of the rectangular cross section cable cores assembled by the ten methods are all correspondingly equal.

[0007] A flexibly assembled power cable comprises a cable core and a sheath layer covering the cable core; the cable core is composed of a first power transmission unit, two identical second power transmission units, two identical third power transmission units, and two identical fourth power transmission units, and the cross section of the cable core is a rectangle; the characteristics are: The first power transmission unit is composed of a first power transmission component and a first insulating sleeve, the first insulating sleeve covers the first power transmission component, and the cross section of the first insulating sleeve is rectangular; The second power transmission unit is composed of a second power transmission component and a second insulating sleeve, the second insulating sleeve covers the second power transmission component, the second power transmission component is composed of a second paired power transmission component and a second matching power transmission component, the cross-sections of the second paired power transmission component and the second matching power transmission component are both right-angled trapezoids, and the non-right-angled waist of the second paired power transmission component is aligned with the non-right-angled waist of the second matching power transmission component and is tightly combined; the second insulating sleeve is composed of a second paired insulating sleeve and a second matching insulating sleeve, the cross-sections of the second paired insulating sleeve and the second matching insulating sleeve are both right-angled trapezoids, and the non-right-angled waist of the second paired insulating sleeve is aligned with the non-right-angled waist of the second matching insulating sleeve and is tightly combined; the second paired power transmission component is located in the second paired insulating sleeve, and the second matching power transmission component is located in the second matching insulating sleeve; The third power transmission unit is composed of a third power transmission component and a third insulating sleeve, the third insulating sleeve covers the third power transmission component, the third power transmission component is composed of a third paired power transmission component and a third matching power transmission component, the cross-sections of the third paired power transmission component and the third matching power transmission component are both right-angled trapezoids, and the non-right-angled waist of the third paired power transmission component is aligned with and tightly combined with the non-right-angled waist of the third matching power transmission component; the third insulating sleeve is composed of a third paired insulating sleeve and a third matching insulating sleeve, the cross-sections of the third paired insulating sleeve and the third matching insulating sleeve are both right-angled trapezoids, and the non-right-angled waist of the third paired insulating sleeve is aligned with and tightly combined with the non-right-angled waist of the third matching insulating sleeve; the third paired power transmission component is located in the third paired insulating sleeve, and the third matching power transmission component is located in the third matching insulating sleeve; The fourth power transmission unit is composed of a fourth power transmission component and a fourth insulating sleeve, the fourth insulating sleeve covers the fourth power transmission component, the fourth power transmission component is composed of a fourth paired power transmission component and a fourth matching power transmission component, the cross-sections of the fourth paired power transmission component and the fourth matching power transmission component are both right-angled trapezoids, and the non-right-angle waist of the fourth paired power transmission component is aligned with and tightly combined with the non-right-angle waist of the fourth matching power transmission component; the fourth insulating sleeve is composed of a fourth paired insulating sleeve and a fourth matching insulating sleeve, the cross-sections of the fourth paired insulating sleeve and the fourth matching insulating sleeve are both right-angled trapezoids, and the non-right-angle waist of the fourth paired insulating sleeve is aligned with and tightly combined with the non-right-angle waist of the third matching insulating sleeve; the fourth paired power transmission component is located in the fourth paired insulating sleeve, and the fourth matching power transmission component is located in the fourth matching insulating sleeve; There are ten methods for splicing all the transmission units into a rectangular cross-section cable core, and the lengths and widths of the rectangular cross-section cable cores spliced ​​by the ten methods are correspondingly equal.

[0008] The above-mentioned power cable that can be flexibly assembled is characterized in that the cable core with a rectangular cross-section is divided into five rows in the horizontal direction and six columns in the vertical direction, which are respectively: The first to sixth columns of the first row horizontally are called R1C1, R1C2, R1C3, R1C4, R1C5, and R1C6 respectively; The first to sixth columns of the second horizontal row are called R2C1, R2C2, R2C3, R2C4, R2C5, and R2C6 respectively; The first to sixth columns of the third horizontal row are called R3C1, R3C2, R3C3, R3C4, R3C5, and R3C6 respectively; The first to sixth columns of the fourth horizontal row are called R4C1, R4C2, R4C3, R4C4, R4C5, and R4C6 respectively; The first to sixth columns of the fifth horizontal row are called R5C1, R5C2, R5C3, R5C4, R5C5, and R5C6 respectively.

[0009] The present invention has the following major beneficial technical effects: high space utilization, suitable for pipes with rectangular cross-sections, and more convenient and flexible assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Schematic diagram of the cross-sectional structure of the first power transmission unit used in the present invention.

[0011] Figure 2 Schematic diagram of the cross-sectional structure of the second power transmission unit used in the present invention.

[0012] Figure 3 Schematic diagram of the cross-sectional structure of the third power transmission unit used in the present invention.

[0013] Figure 4 Schematic diagram of the cross-sectional structure of the fourth power transmission unit used in the present invention.

[0014] Figure 5 This is a schematic diagram of the cross-sectional structure of implementation example 1.

[0015] Figure 6 This is a schematic diagram of the cross-sectional structure of implementation example 2.

[0016] Figure 7 This is a schematic diagram of the cross-sectional structure of implementation example 3.

[0017] Figure 8 This is a schematic diagram of the cross-sectional structure of implementation example 4.

[0018] Fig. 9 This is a schematic diagram of the cross-sectional structure of implementation example 5.

[0019] Fig.10 This is a schematic diagram of the cross-sectional structure of implementation example 6.

[0020] Fig.11 This is a schematic diagram of the cross-sectional structure of implementation example 7.

[0021] Fig.12 This is a schematic diagram of the cross-sectional structure of implementation example 8.

[0022] Fig.13 This is a schematic diagram of the cross-sectional structure of Example 9.

[0023] Fig.14 This is a schematic diagram of the cross-sectional structure of implementation example 10.

[0024] Fig.15 It is a schematic cross-sectional structure diagram of another first power transmission unit used in the present invention.

[0025] Fig.16 A schematic diagram of the regional division of the cross section of the cable core in the present invention. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand and implement this patent, the marks in the drawings are now described in detail in conjunction with the drawings in the specification.

[0027] In the figure: 1—first transmission unit, 2—second transmission unit, 3—third transmission unit, 4—fourth transmission unit, 11—first transmission component, 12—first insulating sleeve, 111—first sub-transmission component, 112—second sub-transmission component, 113—third sub-transmission component, L1—length of the first insulating sleeve, W1—width of the first insulating sleeve, 21—second transmission component, 22—second insulating sleeve, 211—second paired transmission component, 212—second paired transmission component electrical component, 221—second paired insulating sleeve, 222—second matching insulating sleeve, L21—upper bottom length of the second paired insulating sleeve, L22—lower bottom length of the second paired insulating sleeve, L23—upper bottom length of the second paired insulating sleeve, L24—lower bottom length of the second paired insulating sleeve, W21—right-angle waist length of the second paired insulating sleeve, W22—right-angle waist length of the second matching insulating sleeve, 31—third power transmission component, 32—third insulating sleeve, 311—third paired Transmission component, 312—third matching transmission component, 321—third matching insulating sleeve, 322—third matching insulating sleeve, L31—upper bottom length of the third matching insulating sleeve, L32—lower bottom length of the third matching insulating sleeve, L33—upper bottom length of the third matching insulating sleeve, L34—lower bottom length of the third matching insulating sleeve, W31—right-angle waist length of the third matching insulating sleeve, W32—right-angle waist length of the third matching insulating sleeve, 41—fourth transmission component, 42— The fourth insulating sleeve, 411—the fourth paired power transmission component, 412—the fourth matching power transmission component, 421—the fourth paired insulating sleeve, 422—the fourth matching insulating sleeve, L41—the upper bottom length of the fourth paired insulating sleeve, L42—the lower bottom length of the fourth paired insulating sleeve, L43—the upper bottom length of the fourth paired insulating sleeve, L44—the lower bottom length of the fourth paired insulating sleeve, W41—the right-angle waist length of the fourth paired insulating sleeve, W42—the right-angle waist length of the fourth matching insulating sleeve.

[0028] Implementation Example 1: Please see Figures 1 to 5 and Fig.16 , a flexibly assembled power cable, comprising a cable core and a sheath layer covering the cable core; the cable core is composed of a first power transmission unit 1, two identical second power transmission units 2, two identical third power transmission units 3, and two identical fourth power transmission units 4, and the cross section of the cable core is rectangular; the characteristics are: The first power transmission unit 1 is composed of a first power transmission component 11 and a first insulating sleeve 12. The first insulating sleeve 12 covers the first power transmission component 11. The cross section of the first insulating sleeve 12 is rectangular. The length of the first insulating sleeve is L1, and the width of the first insulating sleeve is W1. The second power transmission unit 2 is composed of a second power transmission component 21 and a second insulating sleeve 22. The second insulating sleeve 22 covers the second power transmission component 21. The second power transmission component 21 is composed of a second matching power transmission component 211 and a second matching power transmission component 212. The cross-sections of the second matching power transmission component 211 and the second matching power transmission component 212 are both right-angled trapezoids. The non-right-angle waist of the second matching power transmission component 211 is aligned with the non-right-angle waist of the second matching power transmission component 212 and is tightly combined. The second insulating sleeve 22 is composed of a second matching insulating sleeve 221 and a second matching insulating sleeve 222. The cross-sections of the second paired insulating sleeve 222 are all right-angled trapezoids, the non-right-angle waist of the second paired insulating sleeve 221 is aligned with the non-right-angle waist of the second matching insulating sleeve 222 and is tightly combined; the second paired power transmission component 211 is located in the second paired insulating sleeve 221, and the second matching power transmission component 212 is located in the second matching insulating sleeve 222; the upper bottom length of the second paired insulating sleeve is L21, the lower bottom length of the second paired insulating sleeve is L22, the upper bottom length of the second paired insulating sleeve is L23, the lower bottom length of the second paired insulating sleeve is L24, the right-angle waist length of the second paired insulating sleeve is W21, and the right-angle waist length of the second matching insulating sleeve is W22; The third power transmission unit 3 is composed of a third power transmission component 31 and a third insulating sleeve 32. The third insulating sleeve 32 covers the third power transmission component 31. The third power transmission component 31 is composed of a third paired power transmission component 311 and a third matching power transmission component 312. The cross-sections of the third paired power transmission component 311 and the third matching power transmission component 312 are both right-angled trapezoids. The non-right-angle waist of the third paired power transmission component 311 is aligned with the non-right-angle waist of the third matching power transmission component 312 and is tightly combined. The third insulating sleeve 32 is composed of a third paired insulating sleeve 321 and a third matching insulating sleeve 322. The cross-sections of the third paired insulating sleeve 322 are all right-angled trapezoids, the non-right-angle waist of the third paired insulating sleeve 321 is aligned with the non-right-angle waist of the third matching insulating sleeve 322 and is tightly combined; the third paired power transmission component 311 is located in the third paired insulating sleeve 321, and the third matching power transmission component 312 is located in the third matching insulating sleeve 322; the upper bottom length of the third paired insulating sleeve is L31, the lower bottom length of the third paired insulating sleeve is L32, the upper bottom length of the third paired insulating sleeve is L33, the lower bottom length of the third paired insulating sleeve is L34, the right-angle waist length of the third paired insulating sleeve is W31, and the right-angle waist length of the third matching insulating sleeve is W32; The fourth power transmission unit 4 is composed of a fourth power transmission component 41 and a fourth insulating sleeve 42. The fourth insulating sleeve 42 covers the fourth power transmission component 41. The fourth power transmission component 41 is composed of a fourth paired power transmission component 411 and a fourth matching power transmission component 412. The cross-sections of the fourth paired power transmission component 411 and the fourth matching power transmission component 412 are both right-angled trapezoids. The non-right-angle waist of the fourth paired power transmission component 411 is aligned with the non-right-angle waist of the fourth matching power transmission component 412 and is tightly combined. The fourth insulating sleeve 42 is composed of a fourth paired insulating sleeve 421 and a fourth matching insulating sleeve 422. The fourth paired insulating sleeve 421 and the fourth matching insulating sleeve The cross sections of the fourth matching insulating sleeve 422 are all right-angled trapezoids, the non-right-angle waist of the fourth matching insulating sleeve 421 is aligned with the non-right-angle waist of the third matching insulating sleeve 322 and is tightly combined; the fourth matching power transmission component 411 is located in the fourth matching insulating sleeve 421, and the fourth matching power transmission component 412 is located in the fourth matching insulating sleeve 422; the upper bottom length of the fourth matching insulating sleeve is L41, the lower bottom length of the fourth matching insulating sleeve is L42, the upper bottom length of the fourth matching insulating sleeve is L43, the lower bottom length of the fourth matching insulating sleeve is L44, the right-angle waist length of the fourth matching insulating sleeve is W41, and the right-angle waist length of the fourth matching insulating sleeve is W42; The cable core with a rectangular cross section is divided into five rows horizontally and six columns vertically. The first to sixth columns of the first row horizontally are called R1C1, R1C2, R1C3, R1C4, R1C5, and R1C6 respectively; The first to sixth columns of the second horizontal row are called R2C1, R2C2, R2C3, R2C4, R2C5, and R2C6 respectively; The first to sixth columns of the third horizontal row are called R3C1, R3C2, R3C3, R3C4, R3C5, and R3C6 respectively; The first to sixth columns of the fourth horizontal row are called R4C1, R4C2, R4C3, R4C4, R4C5, and R4C6 respectively; The first to sixth columns of the fifth horizontal row are called R5C1, R5C2, R5C3, R5C4, R5C5, and R5C6 respectively; In this implementation example: The first transmission unit 1 occupies the following positions: R1C1, R1C2, R1C3, R2C1, R2C2, R2C3. The first second transmission unit 2 occupies: R1C4, R2C4, R3C4, R4C4, R4C5, The second second transmission unit 2 occupies: R2C6, R3C6, R4C6, R5C5, R5C6, The first third transmission unit 3 occupies: R1C5, R1C6, R2C5, R3C5, The second third transmission unit 3 occupies: R3C3, R4C3, R5C3, R5C4, The first fourth transmission unit 4 occupies: R3C1, R3C2, R4C2, The second fourth power transmission unit 4 occupies the following positions: R4C1, R5C1, R5C2.

[0029] Implementation Example 2: Please see Figure 6 , and refer to Figures 1 to 4 , a flexibly assembled power cable, which is basically the same as the implementation example 1, except that: The first transmission unit 1 occupies: R1C4, R1C5, R1C6, R2C4, R2C5, R2C6, The first second transmission unit 2 occupies: R4C1, R5C1, R5C2, R5C3, R5C4, The second second transmission unit 2 occupies: R4C2, R4C3, R4C4, R4C5, R3C5, The first third transmission unit 3 occupies: R1C1, R2C1, R3C1, R3C2, The second third transmission unit 3 occupies: R3C6, R4C6, R5C5, R5C6, The first fourth transmission unit 4 occupies: R1C2, R1C3, R2C2, The second fourth transmission unit 4 occupies the following positions: R2C3, R3C3, R3C4.

[0030] Implementation Example 3: Please see Figure 7 , and refer to Figures 1 to 4 , a flexibly assembled power cable, which is basically the same as implementation example 1, except that:

[0031] The first transmission unit 1 occupies: R4C1, R4C2, R4C3, R5C1, R5C2, R5C3, The first second transmission unit 2 occupies: R3C1, R3C2, R3C3, R3C4, R2C4, The second second transmission unit 2 occupies: R1C6, R2C6, R3C6, R4C5, R4C6, The first third transmission unit 3 occupies: R1C4, R1C5, R2C5, R3C5, The second third transmission unit 3 occupies: R4C4, R5C4, R5C5, R5C6, The first fourth transmission unit 4 occupies: R1C1, R1C2, R2C1, The second fourth transmission unit 4 occupies the following positions: R1C3, R2C2, R2C3.

[0032] Implementation Example 4: Please see Figure 8 , and refer to Figures 1 to 4 , a flexibly assembled power cable, which is basically the same as implementation example 1, except that:

[0033] The first transmission unit 1 occupies: R2C3, R2C4, R2C5, R3C3, R3C4, R3C5, The first second transmission unit 2 occupies: R1C2, R1C3, R1C4, R1C5, R2C2, The second second transmission unit 2 occupies: R1C6, R2C6, R3C6, R4C5, R4C6, The first third transmission unit 3 occupies: R1C1, R2C1, R3C1, R3C2, The second third transmission unit 3 occupies: R4C4, R5C4, R5C5, R5C6, The first fourth transmission unit 4 occupies: R4C1, R4C2, R5C1, The second fourth transmission unit 4 occupies the following positions: R4C3, R5C2, R5C3.

[0034] Implementation Example 5: Please see Fig. 9 , and refer to Figures 1 to 4 , a flexibly assembled power cable, which is basically the same as implementation example 1, except that:

[0035] The first transmission unit 1 occupies: R4C4, R4C5, R4C6, R5C4, R5C5, R5C6, The first second transmission unit 2 occupies: R1C1, R1C2, R1C3, R1C4, R2C1, The second second transmission unit 2 occupies: R2C2, R2C3, R2C4, R2C5, R3C5, The first third transmission unit 3 occupies: R1C5, R1C6, R2C6, R3C6, The second third transmission unit 3 occupies: R3C3, R3C4, R4C3, R5C3, The first fourth transmission unit 4 occupies: R3C1, R3C2, R4C2, The second fourth power transmission unit 4 occupies the following positions: R4C1, R5C1, R5C2.

[0036] Implementation Example 6: Please see Fig.10 , and refer to Figures 1 to 4, a flexibly assembled power cable, which is basically the same as the implementation example 1, except that: The first transmission unit 1 occupies: R1C4, R1C5, R1C6, R2C4, R2C5, R2C6, The first second transmission unit 2 occupies: R1C1, R1C2, R2C1, R3C1, R4C1, The second second transmission unit 2 occupies: R3C2, R3C3, R3C4, R3C5, R4C2, The first third transmission unit 3 occupies: R5C1, R5C2, R5C3, R4C3, The second third transmission unit 3 occupies: R3C6, R4C6 R5C5, R5C6, The first fourth transmission unit 4 occupies: R1C3, R2C2, R2C3, The second fourth transmission unit 4 occupies the following positions: R4C4, R4C5, R5C4.

[0037] Implementation Example 7: Please see Fig.11 , and refer to Figures 1 to 4 , a flexibly assembled power cable, which is basically the same as the implementation example 1, except that: The first transmission unit 1 occupies: R2C4, R2C5, R3C4, R3C5, R4C4, R4C5, The first second transmission unit 2 occupies: R1C1, R1C2, R1C3, R1C4, R2C1, The second second transmission unit 2 occupies: R4C1, R5C1, R5C2, R5C3, R5C4, The first third transmission unit 3 occupies: R1C5, R1C6, R2C6, R3C6, The second third transmission unit 3 occupies: R2C3, R3C3, R4C2, R4C3, The first fourth transmission unit 4 occupies: R2C2, R3C1, R3C2, The second fourth transmission unit 4 occupies: R4C6, R5C5, R5C.

[0038] Implementation Example 8: Please see Fig.12 , and refer to Figures 1 to 4 , a flexibly assembled power cable, which is basically the same as the implementation example 1, except that: The first transmission unit 1 occupies: R3C5, R3C6, R4C5, R4C6, R5C5, R5C6, The first second transmission unit 2 occupies: R1C3, R2C3, R3C3, R4C2, R4C3, The second second transmission unit 2 occupies: R2C1, R3C1, R4C1, R5C1, R5C2, The first third transmission unit 3 occupies: R1C1, R1C2, R2C2, R3C2, The second third transmission unit 3 occupies: R1C4, R1C5, R3C4, R4C4, The first fourth transmission unit 4 occupies: R1C6, R2C5, R2C6, The second fourth transmission unit 4 occupies: R4C4, R5C3, R5C4.

[0039] Implementation Example 9: Please see Fig.13 , and refer to Figures 1 to 4 , a flexibly assembled power cable, which is basically the same as the implementation example 1, except that: The first transmission unit 1 occupies: R1C1, R1C2, R2C1, R2C2, R3C1, R3C2, The first second transmission unit 2 occupies: R1C3, R1C4, R1C5, R1C6, R2C3, The second second transmission unit 2 occupies: R2C6, R3C6, R4C6, R5C5, R5C6, The first third transmission unit 3 occupies: R2C4, R2C5, R3C5, R4C5, The second third transmission unit 3 occupies: R3C4, R4C4, R5C3, R5C4, The first fourth transmission unit 4 occupies: R3C3, R4C2, R4C3, The second fourth transmission unit 4 occupies the following positions: R4C1, R5C1, R5C2.

[0040] Implementation Example 10: Please see Fig.14 , and refer to Figures 1 to 4 , a flexibly assembled power cable, which is basically the same as the implementation example 1, except that: The first transmission unit 1 occupies: R1C5, R1C6, R2C5, R2C6, R3C5, R3C6, The first second transmission unit 2 occupies: R1C1, R1C2, R1C3, R1C4, R2C4, The second second transmission unit 2 occupies: R2C1, R3C1, R4C1, R5C1, R5C2, The first third transmission unit 3 occupies: R2C2, R2C3, R3C2, R4C2, The second third transmission unit 3 occupies: R3C3, R4C3, R5C3, R5C4, The first fourth transmission unit 4 occupies: R3C4, R4C4, R4C5, The second fourth transmission unit 4 occupies the following positions: R4C6, R5C5, R5C6.

[0041] Please see Fig.15 The first power transmission component 11 inside the first power transmission unit 1 can also be composed of a first sub-power transmission component 111, a second sub-power transmission component 112, and a third sub-power transmission component 113, which are arranged in sequence and insulated from each other, and can be used in any of the above-mentioned implementation examples. The advantage is: three sub-power transmission components are formed, which can be used in conjunction with the second power transmission unit 2, the third power transmission unit 3, and the fourth power transmission unit 4 to form three three-phase transmissions, or used as ground wires respectively.

[0042] In the present application, the relationship between the length and width of each transmission unit can be: L1=W31+L42, L1=W31+W42+L41, L32=W41+L44, L32=W32+L31, L34=W31+L33, L21=L32, L22=W1+L44, L22=L21+W22, L24=W21+L23, L24=W21+W31, L31=L44, L24=L23+L33, L21=L31+W22, L32=L31+W32, L33=W21, L34=W21+W31, L34=L33+W31, L41=W42, L44=W 41+L43,L42=W42+L41,W22=W32,W22=L43,W1=L42,L1+W21=L42+L34; also, R1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R2C1, R2C2, R2C3, R2C4, R2C5, R2C6, R3C1, R3C2, R3C3, R3C4, R3C5, R3C6, R4C1, R4C2, R4C3, R4C4, R4C5, R4C6, R5C1, R5C2, R5C3, R5C4, R5C5, R5C6; each small grid is a small square structure or a small rectangular structure.

[0043] A flexibly assembled power cable described in the present application comprises a cable core and a sheath layer covering the cable core; the cable core is composed of a first power transmission unit, two identical second power transmission units, two identical third power transmission units, and two identical fourth power transmission units, and the cross-section of the cable core is rectangular; the characteristics are as follows: the cross-section of the first power transmission unit is rectangular, the cross-sections of the second power transmission unit, the third power transmission unit, and the fourth power transmission unit are all L-shaped, and the second power transmission unit, the third power transmission unit, and the fourth power transmission unit are not equal to each other, there are ten methods for assembling all the power transmission units into a rectangular cross-section cable core, and the lengths and widths of the rectangular cross-section cable cores assembled by the ten methods are correspondingly equal.

[0044] In the present application, the first sub-power transmission component 111 , the second sub-power transmission component 112 , and the third sub-power transmission component 113 are all insulated wires, with conductors inside and insulating layers outside.

[0045] In the present application, the materials of the first power transmission component 11, the second power transmission component 21, the third power transmission component 31, and the fourth power transmission component 41 are all conductors that can transmit power, such as copper or aluminum or copper alloy or aluminum alloy; and they are all integrated structures.

[0046] In the present application, the materials of the second paired power transmission component 211, the second matching power transmission component 212, the third paired power transmission component 311, the third matching power transmission component 312, the fourth paired power transmission component 411, and the fourth matching power transmission component 412 are all conductors that can transmit electricity, such as copper or aluminum or copper alloy or aluminum alloy.

[0047] In the present application, the first insulating sleeve 12 , the second insulating sleeve 22 , the third insulating sleeve 32 , and the fourth insulating sleeve 42 are all integral structures, and the materials are all plastic.

[0048] In the present application, the materials of the second paired insulating sleeve 221, the second matching insulating sleeve 222, the third paired insulating sleeve 321, the sleeve insulating sleeve 322, the fourth paired insulating sleeve 421, and the fourth matching insulating sleeve 422 are all plastic.

[0049] In the present application, seven transmission conductors are used to realize the allocation of three specifications of transmission lines in the same cable, which can be suitable for users with different power capacity requirements and make full use of space resources. The cross-section of the cable core is rectangular and is fully used without gaps; at the same time, space consumption is saved, which is very suitable for rectangular pipelines; and the pipeline rental cost is reduced; the present invention has a variety of assembly methods, so the assembly is flexible, the cable core can be assembled on-site and during production, and different molds can be used, so that the transmission line can be formed by passing through the mold; compared with only one assembly method, the present application is more flexible, reliable, convenient and fast.

[0050] The present invention has the following major beneficial technical effects: high space utilization, suitable for pipes with rectangular cross-sections, and more convenient and flexible assembly.

[0051] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A flexibly assembled power cable, comprising a cable core and a sheath layer covering the cable core; the cable core is composed of a first power transmission unit, two identical second power transmission units, two identical third power transmission units, and two identical fourth power transmission units, and the cross section of the cable core is a rectangle; the characteristics are: The cross section of the first transmission unit is rectangular, the cross sections of the second transmission unit, the third transmission unit and the fourth transmission unit are all L-shaped, and the second transmission unit, the third transmission unit and the fourth transmission unit are not equal to each other. There are ten methods for splicing all the transmission units into a rectangular cross-section cable core, and the lengths and widths of the rectangular cross-section cable cores obtained by the ten methods are correspondingly equal.

2. A flexibly assembled power cable, comprising a cable core and a sheath layer covering the cable core; the cable core is composed of a first power transmission unit, two identical second power transmission units, two identical third power transmission units, and two identical fourth power transmission units, and the cross section of the cable core is a rectangle; characterized in that: The first power transmission unit is composed of a first power transmission component and a first insulating sleeve, the first insulating sleeve covers the first power transmission component, and the cross section of the first insulating sleeve is rectangular; The second power transmission unit is composed of a second power transmission component and a second insulating sleeve, the second insulating sleeve covers the second power transmission component, the second power transmission component is composed of a second paired power transmission component and a second matching power transmission component, the cross-sections of the second paired power transmission component and the second matching power transmission component are both right-angled trapezoids, and the non-right-angled waist of the second paired power transmission component is aligned with the non-right-angled waist of the second matching power transmission component and is tightly combined; the second insulating sleeve is composed of a second paired insulating sleeve and a second matching insulating sleeve, the cross-sections of the second paired insulating sleeve and the second matching insulating sleeve are both right-angled trapezoids, and the non-right-angled waist of the second paired insulating sleeve is aligned with the non-right-angled waist of the second matching insulating sleeve and is tightly combined; the second paired power transmission component is located in the second paired insulating sleeve, and the second matching power transmission component is located in the second matching insulating sleeve; The third power transmission unit is composed of a third power transmission component and a third insulating sleeve, the third insulating sleeve covers the third power transmission component, the third power transmission component is composed of a third paired power transmission component and a third matching power transmission component, the cross-sections of the third paired power transmission component and the third matching power transmission component are both right-angled trapezoids, and the non-right-angled waist of the third paired power transmission component is aligned with and tightly combined with the non-right-angled waist of the third matching power transmission component; the third insulating sleeve is composed of a third paired insulating sleeve and a third matching insulating sleeve, the cross-sections of the third paired insulating sleeve and the third matching insulating sleeve are both right-angled trapezoids, and the non-right-angled waist of the third paired insulating sleeve is aligned with and tightly combined with the non-right-angled waist of the third matching insulating sleeve; the third paired power transmission component is located in the third paired insulating sleeve, and the third matching power transmission component is located in the third matching insulating sleeve; The fourth power transmission unit is composed of a fourth power transmission component and a fourth insulating sleeve, the fourth insulating sleeve covers the fourth power transmission component, the fourth power transmission component is composed of a fourth paired power transmission component and a fourth matching power transmission component, the cross-sections of the fourth paired power transmission component and the fourth matching power transmission component are both right-angled trapezoids, and the non-right-angle waist of the fourth paired power transmission component is aligned with and tightly combined with the non-right-angle waist of the fourth matching power transmission component; the fourth insulating sleeve is composed of a fourth paired insulating sleeve and a fourth matching insulating sleeve, the cross-sections of the fourth paired insulating sleeve and the fourth matching insulating sleeve are both right-angled trapezoids, and the non-right-angle waist of the fourth paired insulating sleeve is aligned with and tightly combined with the non-right-angle waist of the third matching insulating sleeve; the fourth paired power transmission component is located in the fourth paired insulating sleeve, and the fourth matching power transmission component is located in the fourth matching insulating sleeve; There are ten methods for splicing all the transmission units into a rectangular cross-section cable core, and the lengths and widths of the rectangular cross-section cable cores spliced ​​by the ten methods are correspondingly equal.

3. A flexibly assembled power cable according to claim 1 or claim 2, characterized in that: The cable core with a rectangular cross-section is divided into five rows horizontally and six columns vertically, which are: The first to sixth columns of the first row horizontally are called R1C1, R1C2, R1C3, R1C4, R1C5, and R1C6 respectively; The first to sixth columns of the second horizontal row are called R2C1, R2C2, R2C3, R2C4, R2C5, and R2C6 respectively; The first to sixth columns of the third horizontal row are called R3C1, R3C2, R3C3, R3C4, R3C5, and R3C6 respectively; The first to sixth columns of the fourth horizontal row are called R4C1, R4C2, R4C3, R4C4, R4C5, and R4C6 respectively; The first to sixth columns of the fifth horizontal row are called R5C1, R5C2, R5C3, R5C4, R5C5, and R5C6 respectively.

4. A flexibly assembled power cable according to claim 3, characterized in that: The ten methods of splicing all transmission units into a rectangular cross-section cable core are: The first type: the first transmission unit 1 occupies the following positions: R1C1, R1C2, R1C3, R2C1, R2C2, R2C3; the first second transmission unit 2 occupies the following positions: R1C4, R2C4, R3C4, R4C4, R4C5; the second second transmission unit 2 occupies the following positions: R2C6, R3C6, R4C6, R5C5, R5C6; the first third transmission unit 3 occupies the following positions: R1C5, R1C6, R2C5, R3C5; the second third transmission unit 3 occupies the following positions: R3C3, R4C3, R5C3, R5C4; the first fourth transmission unit 4 occupies the following positions: R3C1, R3C2, R4C2; the second fourth transmission unit 4 occupies the following positions: R4C1, R5C1, R5C2; The second type: The first transmission unit 1 occupies: R1C4, R1C5, R1C6, R2C4, R2C5, R2C6, the first second transmission unit 2 occupies: R4C1, R5C1, R5C2, R5C3, R5C4, The second second transmission unit 2 occupies the following positions: R4C2, R4C3, R4C4, R4C5, R3C5; the first third transmission unit 3 occupies the following positions: R1C1, R2C1, R3C1, R3C2; the second third transmission unit 3 occupies the following positions: R3C6, R4C6, R5C5, R5C6; the first fourth transmission unit 4 occupies the following positions: R1C2, R1C3, R2C2; the second fourth transmission unit 4 occupies the following positions: R2C3, R3C3, R3C4; The third type: The first transmission unit 1 occupies: R4C1, R4C2, R4C3, R5C1, R5C2, R5C3, the first second transmission unit 2 occupies: R3C1, R3C2, R3C3, R3C4, R2C4, The second second transmission unit 2 occupies the following positions: R1C6, R2C6, R3C6, R4C5, R4C6; the first third transmission unit 3 occupies the following positions: R1C4, R1C5, R2C5, R3C5; the second third transmission unit 3 occupies the following positions: R4C4, R5C4, R5C5, R5C6; the first fourth transmission unit 4 occupies the following positions: R1C1, R1C2, R2C1; the second fourth transmission unit 4 occupies the following positions: R1C3, R2C2, R2C3; The fourth type: The first transmission unit 1 occupies: R2C3, R2C4, R2C5, R3C3, R3C4, R3C5, the first second transmission unit 2 occupies: R1C2, R1C3, R1C4, R1C5, R2C2, The second second transmission unit 2 occupies the following positions: R1C6, R2C6, R3C6, R4C5, R4C6; the first third transmission unit 3 occupies the following positions: R1C1, R2C1, R3C1, R3C2; the second third transmission unit 3 occupies the following positions: R4C4, R5C4, R5C5, R5C6; the first fourth transmission unit 4 occupies the following positions: R4C1, R4C2, R5C1; the second fourth transmission unit 4 occupies the following positions: R4C3, R5C2, R5C3; The fifth type: The first transmission unit 1 occupies: R4C4, R4C5, R4C6, R5C4, R5C5, R5C6, the first second transmission unit 2 occupies: R1C1, R1C2, R1C3, R1C4, R2C1, The second second transmission unit 2 occupies the following positions: R2C2, R2C3, R2C4, R2C5, R3C5; the first third transmission unit 3 occupies the following positions: R1C5, R1C6, R2C6, R3C6; the second third transmission unit 3 occupies the following positions: R3C3, R3C4, R4C3, R5C3; the first fourth transmission unit 4 occupies the following positions: R3C1, R3C2, R4C2; the second fourth transmission unit 4 occupies the following positions: R4C1, R5C1, R5C2; Type 6: The first transmission unit 1 occupies: R1C4, R1C5, R1C6, R2C4, R2C5, R2C6, the first second transmission unit 2 occupies: R1C1, R1C2, R2C1, R3C1, R4C1, The second second transmission unit 2 occupies the following positions: R3C2, R3C3, R3C4, R3C5, R4C2; the first third transmission unit 3 occupies the following positions: R5C1, R5C2, R5C3, R4C3; the second third transmission unit 3 occupies the following positions: R3C6, R4C6 R5C5, R5C6; the first fourth transmission unit 4 occupies the following positions: R1C3, R2C2, R2C3; the second fourth transmission unit 4 occupies the following positions: R4C4, R4C5, R5C4; The seventh type: The first transmission unit 1 occupies: R2C4, R2C5, R3C4, R3C5, R4C4, R4C5, the first second transmission unit 2 occupies: R1C1, R1C2, R1C3, R1C4, R2C1, The second second transmission unit 2 occupies the following positions: R4C1, R5C1, R5C2, R5C3, R5C4, the first third transmission unit 3 occupies the following positions: R1C5, R1C6, R2C6, R3C6, the second third transmission unit 3 occupies the following positions: R2C3, R3C3, R4C2, R4C3, the first fourth transmission unit 4 occupies the following positions: R2C2, R3C1, R3C2, the second fourth transmission unit 4 occupies the following positions: R4C6, R5C5, R5C; The eighth type: The first transmission unit 1 occupies: R3C5, R3C6, R4C5, R4C6, R5C5, R5C6, The first second transmission unit 2 occupies the following positions: R1C3, R2C3, R3C3, R4C2, R4C3; the second second transmission unit 2 occupies the following positions: R2C1, R3C1, R4C1, R5C1, R5C2; the first third transmission unit 3 occupies the following positions: R1C1, R1C2, R2C2, R3C2; the second third transmission unit 3 occupies the following positions: R1C4, R1C5, R3C4, R4C4; the first fourth transmission unit 4 occupies the following positions: R1C6, R2C5, R2C6; the second fourth transmission unit 4 occupies the following positions: R4C4, R5C3, R5C4; Ninth type: The first transmission unit 1 occupies: R1C1, R1C2, R2C1, R2C2, R3C1, R3C2, the first second transmission unit 2 occupies: R1C3, R1C4, R1C5, R1C6, R2C3, The second second transmission unit 2 occupies the following positions: R2C6, R3C6, R4C6, R5C5, R5C6; the first third transmission unit 3 occupies the following positions: R2C4, R2C5, R3C5, R4C5; the second third transmission unit 3 occupies the following positions: R3C4, R4C4, R5C3, R5C4; the first fourth transmission unit 4 occupies the following positions: R3C3, R4C2, R4C3; the second fourth transmission unit 4 occupies the following positions: R4C1, R5C1, R5C2; The tenth type: The first transmission unit 1 occupies: R1C5, R1C6, R2C5, R2C6, R3C5, R3C6, the first second transmission unit 2 occupies: R1C1, R1C2, R1C3, R1C4, R2C4, The second second transmission unit 2 occupies the positions: R2C1, R3C1, R4C1, R5C1, R5C2, the first third transmission unit 3 occupies the positions: R2C2, R2C3, R3C2, R4C2, the second third transmission unit 3 occupies the positions: R3C3, R4C3, R5C3, R5C4, the first fourth transmission unit 4 occupies the positions: R3C4, R4C4, R4C5, and the second fourth transmission unit 4 occupies the positions: R4C6, R5C5, R5C6.

5. A flexibly assembled power cable according to claim 1 or claim 2, characterized in that: The first power transmission component inside the first power transmission unit is composed of a first sub-power transmission component, a second sub-power transmission component, and a third sub-power transmission component. The first to third sub-power transmission components are arranged in sequence, and their cross-sections are all rectangular. The three sub-power transmission components are insulated from each other.

6. A flexibly assembled power cable according to claim 5, characterized in that: The first sub-transmission component, the second sub-transmission component and the third sub-transmission component are all insulated wires, with conductors inside and insulating layers outside.

7. The flexibly assembled power cable according to claim 2, characterized in that: The materials of the first power transmission component, the second power transmission component, the third power transmission component and the fourth power transmission component are all conductors capable of transmitting electric power, and are all integral structures.

8. The flexibly assembled power cable according to claim 2, characterized in that: The materials of the second paired power transmission component, the second matching power transmission component, the third paired power transmission component, the third matching power transmission component, the fourth paired power transmission component, and the fourth matching power transmission component are all conductors that can transmit electric power.

9. According to the flexibly assembled power cable of claim 2, the first insulating sleeve, the second insulating sleeve, the third insulating sleeve, and the fourth insulating sleeve are all integrated structures, and the materials are all plastic.

10. The flexibly assembled power cable according to claim 2, wherein the second paired insulating sleeve, the second matching insulating sleeve, the third paired insulating sleeve, the sleeve insulating sleeve, the fourth paired insulating sleeve, and the fourth matching insulating sleeve are all made of plastic.

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