Power cable with double right-angle bending units

Abstract

The invention belongs to the technical field of electric power, and discloses a power cable with double-right-angle bending units, the power cable is provided with an outer sheath and a cable core, the cable core comprises four same double-right-angle bending units, the outer edges of all the double-right-angle bending units in the cable core extend to form a rectangular cross section, and the outer sheath wraps the cable core; the double-right-angle bending unit is composed of a double-folding sheath and a transmission component located in the double-folding sheath, the double-folding sheath is formed by sequentially connecting a first vertical sleeve, a horizontal sleeve and a second vertical sleeve, the first vertical sleeve is parallel to the second vertical sleeve, the first vertical sleeve is perpendicular to the horizontal sleeve, one ends of the vertical sleeves are located on the two sides of the horizontal sleeve respectively, and the other ends of the horizontal sleeve are perpendicular to the first vertical sleeve. The transmission part is provided with two right-angle bends; in the cable core, the four double-right-angle bending units have two implementation states. Compared with the prior art, the cable has the main beneficial technical effects that the use flexibility is improved, the requirements of different power capacities can be met, the cable stripping is more convenient and faster, the heat dissipation is better, and the construction efficiency is higher.

Description

Technical Field

[0001] The present invention belongs to the field of electric power technology, and in particular relates to a power cable with double right-angle bending units. Background Art

[0002] Power systems rely heavily on cables, and with the promotion and widespread adoption of new energy sources, the demand for cables is increasing. Consequently, flexible cable insulation is often required. Different cable specifications are required based on the number of phases and power capacity requirements, increasing the workload during installation and construction. This also increases inventory and stockpiling, taking up significant warehouse space and land.

[0003] CN104021729A discloses a cabinet control cable number plate hanging bracket, comprising a vertical plate and a flat plate that are rotatably mounted by hinges, a pin shaft provided on the left and right sides of the vertical plate, a swing arm rotatably mounted on the pin shaft, an insertion shaft provided on the left and right sides of the flat plate, and a plurality of plug strips each consisting of four expansion sleeves provided on the flat plate. The vertical plate and the flat plate are unfolded into a right-angle arrangement by hinges, and then the swing arm is swung, and the circular hole at its lower end is inserted into the insertion shaft, thereby achieving the fixation of the vertical plate and the flat plate. The cable number plates are then hung on the expansion sleeves on each group of plug strips through the circular holes on the four corners, so that each number plate is uniformly hung and fixed to the vertical plate, thus being beautiful and not messy, and easy to find. After use, the swing arm is removed from the insertion shaft, and the flat plate is rotated to be parallel to the vertical plate by the hinge to achieve folding and storage, making it convenient to carry.

[0004] CN116609905A discloses a four-unit butterfly-shaped optical cable having four butterfly-shaped introduction units and an outer sheath; it also comprises a frame assembly, wherein the frame assembly is composed of four frame components and a reinforcement component, each frame component being bent to form a square cavity, the butterfly-shaped introduction units being located in the square cavity, and each square cavity having only one butterfly-shaped introduction unit; the outer sheath is wrapped around the frame assembly.

[0005] It cannot meet the requirements of flexible use, and the cable stripping speed is slow and the construction efficiency is low. Summary of the Invention

[0006] In order to solve the above problems, the purpose of the present invention is to disclose a power cable with double right-angle bending units, which is achieved by adopting the following technical solutions.

[0007] A power cable with double right-angle bend units comprises an outer sheath and a cable core. The cable core contains four identical double right-angle bend units. The outer edges of all the double right-angle bend units in the cable core are extended to form a rectangular cross-section. The outer sheath encloses the cable core. The double right-angle bend units are composed of a double-fold sheath and third and fourth transmission components located within the double-fold sheath. The double-fold sheath is composed of a first vertical sheath, a horizontal sheath, and a second vertical sheath connected in sequence. The first and second vertical sheaths are parallel, the first vertical sheath is perpendicular to the horizontal sheath, the other end of the first vertical sheath is connected to one end of the horizontal sheath, and the other end of the second vertical sheath is connected to the other end of the horizontal sheath. One end of each of the two vertical sheaths is located on either side of the horizontal sheath. The third and fourth transmission components are parallel to each other and each has two right-angle bends distributed within the double-fold sheath. In the cable core, the four double right-angle bend units have two implementation states; in the first implementation state, one end of the first vertical sleeve of the four double right-angle bend units is respectively located at the four corners of the cable core, and the first and second rectangular cavities are respectively formed between the first vertical sleeves of the two double right-angle bend units in the first and second groups; a third rectangular cavity is formed between the lower edge of the horizontal sleeve of the first double right-angle bend unit in the first group of double right-angle bend units and the lower edge of the horizontal sleeve of the first double right-angle bend unit in the second group of double right-angle bend units; a fourth rectangular cavity is formed between the lower edge of the horizontal sleeve of the second double right-angle bend unit in the first group of double right-angle bend units and the lower edge of the horizontal sleeve of the second double right-angle bend unit in the second group of double right-angle bend units; in the second implementation state, the first vertical sleeves of all double right-angle bend units and the upper edges of the horizontal sleeves of all double right-angle bend units together form a fifth rectangular cavity located in the center, and an external space located at the corner of the cable core is formed outside the lower edge of the horizontal sleeve of each double right-angle bend unit.

[0008] In the above-mentioned power cable with double right-angle bending units, the third transmission component is composed of a third transmission body and a third protective sheath wrapped around the third transmission body, and the fourth transmission component is composed of a fourth transmission body and a fourth protective sheath wrapped around the fourth transmission body.

[0009] The power cable with double right-angle bending units described above, in the first implementation state, In the first group of double right-angle bend units: the right edges of the two second vertical sleeves are aligned and tightly attached to each other, the surfaces of one end of the two second vertical sleeves are located in the first plane, and a first rectangular cavity is formed above the upper edges of the two horizontal sleeves; In the second group of double right-angle bend units: the right edges of the two second vertical sleeves are aligned and tightly attached to each other, the surfaces of one end of the two second vertical sleeves are located in the second plane, and a second rectangular cavity is formed below the upper edges of the two horizontal sleeves; The surface of one end of the second vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units is aligned with and in close contact with the surface of one end of the second vertical sleeve of the first double right-angle bend unit in the second group of double right-angle bend units; the surface of one end of the second vertical sleeve of the second double right-angle bend unit in the first group of double right-angle bend units is aligned with and in close contact with the surface of one end of the second vertical sleeve of the second double right-angle bend unit in the second group of double right-angle bend units; the first plane coincides with the second plane; A third rectangular cavity is formed between the lower edge of the horizontal sleeve of the first double right-angle bend unit in the first group of double right-angle bend units and the lower edge of the horizontal sleeve of the first double right-angle bend unit in the second group of double right-angle bend units; A fourth rectangular cavity is formed between the lower edge of the horizontal sleeve of the second double right-angle bend unit in the first group of double right-angle bend units and the lower edge of the horizontal sleeve of the second double right-angle bend unit in the second group of double right-angle bend units.

[0010] The above-mentioned power cable with double right-angle bending units also has two first transmission units and two second transmission units. The first transmission unit is composed of a first transmission body and a first protective cover, and the first protective cover covers the first transmission body; the second transmission unit is composed of a second transmission body and a second protective cover, and the second protective cover covers the second transmission body; one first transmission unit is located in the first rectangular cavity, another first transmission unit is located in the second rectangular cavity, one second transmission unit is located in the third rectangular cavity, and another second transmission unit is located in the fourth rectangular cavity.

[0011] The power cable with double right-angle bending units described above, in the second implementation state, In the first group of double right-angle bend units: the right edges of the two second vertical sleeves are aligned and in close contact, the surfaces of one ends of the two second vertical sleeves are located in the third plane, the right edge of the second vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units lies in the ninth plane, the left edge of the first vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units lies in the tenth plane, the left edge of the first vertical sleeve of the second double right-angle bend unit in the first group of double right-angle bend units lies in the eleventh plane, and the upper surface of one end of the first vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units lies in the twelfth plane. In the second group of double right-angle bend units: the right edges of the two second vertical sleeves are aligned and in close contact, the surfaces of one ends of the two second vertical sleeves are located in the fourth plane, the third plane, the fourth plane, and the twelfth plane are parallel, the tenth plane and the eleventh plane are parallel, and the third plane is perpendicular to the tenth plane. The surface of one end of the first vertical sleeve of the first double right-angle bend unit in the first group is aligned with and in close contact with the surface of one end of the first vertical sleeve of the first double right-angle bend unit in the second group; the surface of one end of the first vertical sleeve of the second double right-angle bend unit in the first group is aligned with and in close contact with the surface of one end of the first vertical sleeve of the second double right-angle bend unit in the second group; The upper edges of the horizontal sleeves of the two double right-angle bend units in the first group of double right-angle bend units are in the fifth plane, the upper edges of the horizontal sleeves of the two double right-angle bend units in the second group of double right-angle bend units are in the sixth plane, the right side edge of the first vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units and the right side edge of the first vertical sleeve of the first double right-angle bend unit in the second group of double right-angle bend units are in the seventh plane, the right side edge of the first vertical sleeve of the second double right-angle bend unit in the first group of double right-angle bend units and the right side edge of the first vertical sleeve of the second double right-angle bend unit in the second group of double right-angle bend units are in the eighth plane, the fifth plane is parallel to the sixth plane, the seventh plane is parallel to the eighth plane, the fifth plane is perpendicular to the seventh plane, and the fifth to eighth planes form a fifth rectangular cavity; The third plane is parallel to the fifth plane, and the tenth plane is parallel to the seventh plane; The sixth plane, the seventh plane, the ninth plane, and the twelfth plane form a first internal space, the sixth plane, the eighth plane, the ninth plane, and the twelfth plane form a second internal space, the fifth plane, the eighth plane, the ninth plane, and the twelfth plane form a third internal space, the fifth plane, the seventh plane, the ninth plane, and the twelfth plane form a fourth internal space, and the first internal space, the second internal space, the third internal space, and the fourth internal space constitute a fifth rectangular cavity; The fourth plane, the tenth plane, the lower edge of the horizontal sleeve of the first double right-angle bend unit in the second group of double right-angle bend units, and the left edge of the second vertical sleeve of the first double right-angle bend unit in the second group of double right-angle bend units form a first external space; the fourth plane, the eleventh plane, the lower edge of the horizontal sleeve of the second double right-angle bend unit in the second group of double right-angle bend units, and the left edge of the second vertical sleeve of the second double right-angle bend unit in the second group of double right-angle bend units form a second external space; the third plane, the tenth plane, the lower edge of the horizontal sleeve of the first double right-angle bend unit in the first group of double right-angle bend units, and the left edge of the second vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units form a third external space; the third plane, the eleventh plane, the lower edge of the horizontal sleeve of the second double right-angle bend unit in the first group of double right-angle bend units, and the left edge of the second vertical sleeve of the second double right-angle bend unit in the first group of double right-angle bend units form a fourth external space.

[0012] The above-mentioned power cable with double right-angle bending units has a third transmission unit in the first external space, the second external space, the third external space, the fourth external space, the first internal space, the second internal space, the third internal space, and the fourth internal space; the third transmission unit is composed of a transmission body and a protective body, and the protective body covers the transmission body; the cross-section of the third transmission unit is rectangular.

[0013] This application has the following main beneficial technical effects: improved flexibility of use, adaptability to different power capacity requirements, more convenient and faster cable stripping, better heat dissipation, and higher construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure after dissection of the first implementation state of this application.

[0015] Figure 2 for Figure 1 Schematic diagram of the enlarged cross-section structure.

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of a section of the third transmission component used in this application after dissection.

[0017] Figure 4 for Figure 3 Schematic diagram of the enlarged cross-section structure.

[0018] Figure 5 for Figure 4 Schematic diagram of the dimensioning structure.

[0019] Figure 6This is a schematic diagram of the cross-sectional structure of the third transmission component after assembly in the second implementation state of the present application.

[0020] Figure 7 for Figure 7 Schematic diagram of a cross-section structure with further reference numerals. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand and implement this patent, the marks in the drawings are now explained in detail in conjunction with the drawings in the specification.

[0022] In the figure: 1—outer sheath, 2—first transmission unit, 3—second transmission unit, 4—double right-angle bending unit, 21—first transmission body, 22—first protective cover, 31—second transmission body, 32—second protective cover, 41—third transmission body, 42—third protective cover, 43—fourth transmission body, 44—fourth protective cover, 45—double folded sheath, W1—first width, W2—second width, W3—third width, W4—fourth width, H1—first height, H2—second height, H3—third height, H4—fourth height, 51—first external space, 52—second external space, 53—third external space, 54—fourth external space, 55—first internal space, 56—second internal space, 57—third internal space, 58—fourth internal space, 5—outer edge of cable core cross section.

[0023] Please see Figures 1 to 7 A power cable with double right-angle bend units comprises an outer sheath 1 and a cable core. The cable core comprises four identical double right-angle bend units 4. The outer edges of all the double right-angle bend units 4 in the cable core are extended to form a rectangular cross-section. The outer sheath 1 covers the cable core. In the cable core, the four double right-angle bend units 4 have two implementation states. The double right-angle bend units 4 are composed of a first vertical sleeve, a horizontal sleeve, and a second vertical sleeve connected in sequence. The first vertical sleeve is parallel to the second vertical sleeve, the first vertical sleeve is perpendicular to the horizontal sleeve, and the first vertical sleeve is parallel to the second vertical sleeve. The other end of the sleeve is connected to one end of the horizontal sleeve, the other end of the second vertical sleeve is connected to the other end of the horizontal sleeve, one end of the first vertical sleeve and one end of the second vertical sleeve are respectively located on both sides of the horizontal sleeve, and the double right-angle bending unit 4 has a third transmission body 41 and a fourth transmission body 43 inside. The third transmission body 41 is covered with a third protective cover 42, and the fourth transmission body 43 is covered with a fourth protective cover 44. The third transmission body 41 and the fourth transmission body 43 are parallel to each other and are distributed with two right-angle bends in the double-folded cover 45.

[0024] Please see Figure 5In the above-mentioned power cable with double right-angle bending units, the width of one end of the first vertical sleeve is a first width W1, the height of the left edge of the first vertical sleeve is a first height H1, and the height of the right edge of the first vertical sleeve is a second height H2; the width of one end of the second vertical sleeve is a third width W3, the height of the right edge of the second vertical sleeve is a third height H3, and the height of the left edge of the second vertical sleeve is a fourth height H4; the width of the upper edge of the horizontal sleeve is the second width W2, and the width of the lower edge of the horizontal sleeve is a fourth width W4.

[0025] Furthermore, in the above-mentioned power cable with double right-angle bending units, H1=H3, H2=H4, W1=W3, W2=W4.

[0026] The power cable with double right-angle bending units described above, in the first implementation state, In the first group of double right-angle bend units: the right edges of the two second vertical sleeves are aligned and tightly attached to each other, the surfaces of one end of the two second vertical sleeves are located in the first plane, and a first rectangular cavity is formed above the upper edges of the two horizontal sleeves; In the second group of double right-angle bend units: the right edges of the two second vertical sleeves are aligned and tightly attached to each other, the surfaces of one end of the two second vertical sleeves are located in the second plane, and a second rectangular cavity is formed below the upper edges of the two horizontal sleeves; The surface of one end of the second vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units is aligned with and in close contact with the surface of one end of the second vertical sleeve of the first double right-angle bend unit in the second group of double right-angle bend units; the surface of one end of the second vertical sleeve of the second double right-angle bend unit in the first group of double right-angle bend units is aligned with and in close contact with the surface of one end of the second vertical sleeve of the second double right-angle bend unit in the second group of double right-angle bend units; the first plane coincides with the second plane; A third rectangular cavity is formed between the lower edge of the horizontal sleeve of the first double right-angle bend unit in the first group of double right-angle bend units and the lower edge of the horizontal sleeve of the first double right-angle bend unit in the second group of double right-angle bend units; A fourth rectangular cavity is formed between the lower edge of the horizontal sleeve of the second double right-angle bend unit in the first group of double right-angle bend units and the lower edge of the horizontal sleeve of the second double right-angle bend unit in the second group of double right-angle bend units.

[0027] Furthermore, the above-mentioned power cable with double right-angle bending units also has two first transmission units 2 and two second transmission units 3. The first transmission unit 2 is composed of a first transmission body 21 and a first protective cover 22, and the first protective cover 22 covers the first transmission body 21; the second transmission unit 3 is composed of a second transmission body 31 and a second protective cover 32, and the second protective cover 32 covers the second transmission body 31; one first transmission unit 2 is located in the first rectangular cavity, another first transmission unit 2 is located in the second rectangular cavity, one second transmission unit 3 is located in the third rectangular cavity, and another second transmission unit 3 is located in the fourth rectangular cavity.

[0028] The first transmission unit can also be equally divided into two first transmission sub-units. The first transmission sub-unit is composed of a first sub-transmission body and a first sub-protection cover. The first sub-protection cover covers the first sub-transmission body.

[0029] Preferably, the cross-section of the first transmission unit is rectangular, filling the first rectangular cavity and the second rectangular cavity; when the first transmission unit is composed of two first transmission sub-units, they are preferably placed in parallel rather than stacked. When stacked, the lower one is close to the upper edge of the horizontal sleeve, and the lower one needs to be taken out before the upper one can be taken out.

[0030] Furthermore, the second transmission unit can be equally divided into two second transmission sub-units. The second transmission sub-unit is composed of a second sub-transmission body and a second sub-protective cover, and the second sub-protective cover covers the second sub-transmission body.

[0031] Preferably, the cross-section of the second transmission unit is rectangular, filling the third rectangular cavity and the fourth rectangular cavity; when the second transmission unit is composed of two second transmission sub-units, it is preferably stacked up and down, not horizontally. When placed horizontally, the inner one is close to the right edge of the first vertical sleeve, and the inner one needs to be taken out after the outer one is taken out.

[0032] The two first transmission units 2, the two second transmission units 3, and the four double right-angle bending units 4 form a cable core with a rectangular cross section, and the cross section of the outer sheath 1 is a rectangular that matches the core.

[0033] The power cable with double right-angle bending units described above, in the second implementation state, In the first group of double right-angle bend units: the right edges of the two second vertical sleeves are aligned and in close contact, the surfaces of one ends of the two second vertical sleeves are located in the third plane, the right edge of the second vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units lies in the ninth plane, the left edge of the first vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units lies in the tenth plane, the left edge of the first vertical sleeve of the second double right-angle bend unit in the first group of double right-angle bend units lies in the eleventh plane, and the upper surface of one end of the first vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units lies in the twelfth plane. In the second group of double right-angle bend units: the right edges of the two second vertical sleeves are aligned and in close contact, the surfaces of one ends of the two second vertical sleeves are located in the fourth plane, the third plane, the fourth plane, and the twelfth plane are parallel, the tenth plane and the eleventh plane are parallel, and the third plane is perpendicular to the tenth plane. The surface of one end of the first vertical sleeve of the first double right-angle bend unit in the first group is aligned with and in close contact with the surface of one end of the first vertical sleeve of the first double right-angle bend unit in the second group; the surface of one end of the first vertical sleeve of the second double right-angle bend unit in the first group is aligned with and in close contact with the surface of one end of the first vertical sleeve of the second double right-angle bend unit in the second group; The upper edges of the horizontal sleeves of the two double right-angle bend units in the first group of double right-angle bend units are in the fifth plane, the upper edges of the horizontal sleeves of the two double right-angle bend units in the second group of double right-angle bend units are in the sixth plane, the right side edge of the first vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units and the right side edge of the first vertical sleeve of the first double right-angle bend unit in the second group of double right-angle bend units are in the seventh plane, the right side edge of the first vertical sleeve of the second double right-angle bend unit in the first group of double right-angle bend units and the right side edge of the first vertical sleeve of the second double right-angle bend unit in the second group of double right-angle bend units are in the eighth plane, the fifth plane is parallel to the sixth plane, the seventh plane is parallel to the eighth plane, the fifth plane is perpendicular to the seventh plane, and the fifth to eighth planes form a fifth rectangular cavity; The third plane is parallel to the fifth plane, the tenth plane is parallel to the seventh plane, The sixth plane, the seventh plane, the ninth plane, and the twelfth plane form a first internal space 55, the sixth plane, the eighth plane, the ninth plane, and the twelfth plane form a second internal space 56, the fifth plane, the eighth plane, the ninth plane, and the twelfth plane form a third internal space 57, and the fifth plane, the seventh plane, the ninth plane, and the twelfth plane form a fourth internal space 58. The first internal space 55, the second internal space 56, the third internal space 57, and the fourth internal space 58 constitute a fifth rectangular cavity. The fourth plane, the tenth plane, the lower edge of the horizontal sleeve of the first double right-angle bend unit in the second group of double right-angle bend units, and the left edge of the second vertical sleeve of the first double right-angle bend unit in the second group of double right-angle bend units form a first external space 51; the fourth plane, the eleventh plane, the lower edge of the horizontal sleeve of the second double right-angle bend unit in the second group of double right-angle bend units, and the left edge of the second vertical sleeve of the second double right-angle bend unit in the second group of double right-angle bend units form a second external space 52; the third plane, the tenth plane, the lower edge of the horizontal sleeve of the first double right-angle bend unit in the first group of double right-angle bend units, and the left edge of the second vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units form a third external space 53; the third plane, the eleventh plane, the lower edge of the horizontal sleeve of the second double right-angle bend unit in the first group of double right-angle bend units, and the left edge of the second vertical sleeve of the second double right-angle bend unit in the first group of double right-angle bend units form a fourth external space 54.

[0034] The above-mentioned power cable with double right-angle bending units, the first external space 51, the second external space 52, the third external space 53, the fourth external space 54, the first internal space 55, the second internal space 56, the third internal space 57, and the fourth internal space 58 all have a third transmission unit.

[0035] The third transmission unit is composed of a transmission body and a protection body, and the protection body covers the transmission body.

[0036] In the present application, the cross section of the third transmission unit is rectangular.

[0037] In this application, four third transmission units fill the fifth rectangular cavity; the four third transmission units and four double right-angle bending units 4 on the four outer corners constitute a cable core with a rectangular cross-section, and the cross-section of the outer sheath 1 is a matching rectangle.

[0038] In the present application, in the first implementation state, any surface of the outer sheath 1 has parts of two double right-angle bend units, parts of a first transmission unit 2 or parts of a second transmission unit 3, so that all transmission units and double right-angle bend units can be easily stripped and taken out without disassembling the cable core, which greatly improves the construction efficiency and ensures the integrity and stability of the structure.

[0039] In this application, in the second implementation state, the third transmission units at the four corners and the four double right-angle bending units 4 are very easy to take and place, and also have high construction efficiency. The four internal third transmission units only need to be separated downward in the center of the four sides of the cable core to be easily taken out, which plays a protective role for the internal third transmission units.

[0040] In the present application, in a first embodiment, the first transmission units 2 are configured as one or two groups (when equipped with sub-transmission units), and the second transmission units 3 are configured as one or two groups (when equipped with sub-transmission units). Furthermore, the first transmission units 2 and second transmission units 3 can be combined into one. For example, when the first transmission body 21 and the second transmission body 31 are conductors, two first transmission units 2 can be used to transmit one-phase power; two second transmission units 3 can be used to transmit another-phase power; two first sub-transmission units can be used to transmit one-phase power; four first sub-transmission units can be used to transmit two-phase power or for three-phase four-wire transmission or three-phase transmission with an additional ground wire. The same applies to the second transmission units. A single double right-angle bend unit 4 can transmit one-phase power. When used for power transmission, the third and fourth transmission bodies 41 and 43 with double right-angle bends extend the length of the conductors, allowing for thinner designs and improved heat dissipation while transmitting the same amount of power. When the first and second transmission bodies 2 and 3 are not present, the double right-angle bend units 4 can support each other, further facilitating heat dissipation within the first to fourth rectangular cavities.

[0041] In the present application, in the second implementation state, when the third transmission unit is not provided, the double right-angle bending units 4 can also support each other, and the fifth rectangular cavity, the first external space 51, the second external space 52, the third external space 53, and the fourth external space 54 are more conducive to heat dissipation, so that both sides of the double right-angle bending unit 4 can dissipate heat.

[0042] A power cable with double right-angle bend units comprises an outer sheath and a cable core. The cable core contains four identical double right-angle bend units. The outer edges of all the double right-angle bend units in the cable core are extended to form a rectangular cross-section. The outer sheath encloses the cable core. The double right-angle bend units are composed of a double-fold sheath and third and fourth transmission components located within the double-fold sheath. The double-fold sheath is composed of a first vertical sheath, a horizontal sheath, and a second vertical sheath connected in sequence. The first and second vertical sheaths are parallel, the first vertical sheath is perpendicular to the horizontal sheath, the other end of the first vertical sheath is connected to one end of the horizontal sheath, and the other end of the second vertical sheath is connected to the other end of the horizontal sheath. One end of each of the two vertical sheaths is located on either side of the horizontal sheath. The third and fourth transmission components are parallel to each other and each has two right-angle bends distributed within the double-fold sheath. In the cable core, the four double right-angle bend units have two implementation states; in the first implementation state, one end of the first vertical sleeve of the four double right-angle bend units is respectively located at the four corners of the cable core, and the first and second rectangular cavities are respectively formed between the first vertical sleeves of the two double right-angle bend units in the first and second groups; a third rectangular cavity is formed between the lower edge of the horizontal sleeve of the first double right-angle bend unit in the first group of double right-angle bend units and the lower edge of the horizontal sleeve of the first double right-angle bend unit in the second group of double right-angle bend units; a fourth rectangular cavity is formed between the lower edge of the horizontal sleeve of the second double right-angle bend unit in the first group of double right-angle bend units and the lower edge of the horizontal sleeve of the second double right-angle bend unit in the second group of double right-angle bend units; in the second implementation state, the first vertical sleeves of all double right-angle bend units and the upper edges of the horizontal sleeves of all double right-angle bend units together form a fifth rectangular cavity located in the center, and an external space located at the corner of the cable core is formed outside the lower edge of the horizontal sleeve of each double right-angle bend unit.

[0043] In the above-mentioned power cable with double right-angle bending units, the third transmission component is composed of a third transmission body and a third protective sheath wrapped around the third transmission body, and the fourth transmission component is composed of a fourth transmission body and a fourth protective sheath wrapped around the fourth transmission body.

[0044] The material of the outer sheath 1 described in this application is plastic, preferably cross-linked polyethylene insulation material.

[0045] The material of the first transmission body 21 described in this application is aluminum alloy or copper.

[0046] The material of the second transmission body 31 described in this application is aluminum alloy or copper.

[0047] The material of the third transmission body 41 described in this application is aluminum alloy or copper.

[0048] The material of the fourth transmission body 43 described in this application is aluminum alloy or copper.

[0049] The material of the protective sleeve described in this application is plastic, preferably cross-linked polyethylene insulation material.

[0050] The material of the double-fold sheath 45 described in this application is plastic, preferably cross-linked polyethylene insulation material.

[0051] The cable in this application can have an aluminum alloy conductor, so it can be called an aluminum alloy power cable. Due to the effective electrical isolation of the protective sheath, etc., it can transmit very high power levels, so it can also be called a high-voltage or ultra-high-voltage cable; the cable in this application can be used in smart grids, and the materials of the container and / or the protective sheath can be cross-linked polyethylene insulation material, so it can also be called a cross-linked polyethylene insulated power cable.

[0052] In the present application, the third transmission body 41 and the fourth transmission body 43 are parallel to each other and are both distributed with two right-angle bends in the double-fold sheath 45, which means that the third transmission body 41 is composed of three sections, namely the first section, the second section, and the third section. The first section is located in the first vertical sleeve and is parallel to the first vertical sleeve, the second section is located in the horizontal sleeve and is parallel to the horizontal sleeve, and the third section is located in the second vertical sleeve and is parallel to the second vertical sleeve. The first section, the second section, and the third section are connected in sequence. The fourth transmission body 43 is composed of three sections, namely the fourth section, the fifth section, and the sixth section. The fourth section is located in the first vertical sleeve and is parallel to the first vertical sleeve. The fifth section is located in the horizontal sleeve and is parallel to the horizontal sleeve. The sixth section is located in the second vertical sleeve and is parallel to the second vertical sleeve. The fourth, fifth, and sixth sections are connected in sequence. The fourth paragraph is to the right of the first paragraph, the fifth paragraph is above the second paragraph, and the sixth paragraph is to the right of the third paragraph; Preferably, the third protective cover 42 and the fourth protective cover 44 do not contact each other; The double-folded sheath 45 is composed of a first vertical sheath, a horizontal sheath, and a second vertical sheath.

[0053] In the first usage state of the present application, the first transmission unit 2 is composed of a single unit, and can also be composed of multiple units, such as two, three, etc., which are placed in parallel in the first rectangular cavity and the second rectangular cavity, and can transmit different power. Similarly, the second transmission unit can also be divided into one or more units, stacked and placed in the third rectangular cavity and the fourth rectangular cavity, and can transmit different power; the first transmission unit can be easily taken out from the top of the first rectangular cavity and the bottom of the second rectangular cavity; similarly, the second transmission unit can be easily taken out from the left side of the third rectangular cavity and the right side of the fourth rectangular cavity; the four double right-angle bending units can be easily peeled off at the four corners, so it is very convenient to take and place, which improves construction efficiency.

[0054] In the second embodiment, the third transmission units are placed in the outer cavities at the four corners, which can be easily taken in, placed in, and peeled off; and the third transmission units in the fifth rectangular cavity are effectively protected and closed by double right-angle bending units; of course, the four third transmission units can also be two, that is, placed horizontally and parallel, formed by vertically merging the two above-mentioned third transmission units, or can be stacked and formed by horizontally merging the two above-mentioned third transmission units, thereby expanding the transmission area.

[0055] In the present application, the double right-angle bend structure of the third transmission body 41 and the fourth transmission body 43 allows them to be dispersed, and when they are conductors, they can be thinner and have better heat dissipation. When transmitting the same amount of power, due to the large area of heat dissipation, compared with the circular shape in the prior art, they can withstand higher power and dissipate heat quickly without affecting electrical performance when the same area is used.

[0056] In this application, the double right-angle bending units can be identical in a group of two, that is, not completely identical; for example, Figure 6 The heights of the second vertical sleeves of the two upper right-angle bending units are equal, and the heights of the second vertical sleeves of the two lower right-angle bending units are equal, but the heights of the second vertical sleeves of the upper right-angle bending unit are not equal to the heights of the second vertical sleeves of the lower right-angle bending unit. Similarly, Figure 6 In the embodiment, the heights of the second vertical sleeves of the two upper double right-angle bend units may be equal, and the heights of the second vertical sleeves of the two lower double right-angle bend units may be equal, but the heights of the second vertical sleeves of the upper double right-angle bend unit may be different from the heights of the second vertical sleeves of the lower double right-angle bend unit.

[0057] In the present application, a cable core with a rectangular or, more specifically, a square cross-section can be formed. The double right-angle bending unit and the transmission unit are easy to store. The simplest structure is that the double right-angle bending units are the same and the structure of the transmission units is the same. In this way, fewer specifications can be produced, but they can be assembled and applied, which improves the flexibility of use and can adapt to the needs of different power capacities. The cable stripping is more convenient and faster, the heat dissipation is better, and the construction efficiency is higher.

[0058] In this application, it can be used after production is completed, and it can also be assembled on site for use; the so-called on-site assembly and use means that each component is produced and sold separately. For example, when necessary, it can be assembled on site into any implementation state with an outer sheath, a double right-angle bending unit, and a transmission unit. It can be used after assembly is completed.

[0059] In the present application, the transmission component can be used to transmit electric power or optical signals. When transmitting optical signals, the interior is an optical fiber ribbon, etc. Since it is electrically insulated, it can play a good isolation role. For example, the first transmission component transmits electricity, the second transmission component transmits electricity, and the double right-angle bending unit contains a bent optical fiber ribbon. In this way, in the first embodiment, the double right-angle bending unit isolates the upper and lower first transmission components from transmitting electricity, and the double right-angle bending unit isolates the left and right second transmission components from transmitting electricity; it plays a better insulation role; at the same time, since the power transmission is located outside, the heat dissipation performance is better; different first transmission components, second transmission components, and double right-angle bending units can be different or not completely the same colors, which makes it easy to distinguish all components.

[0060] In the present application, the double right-angle bend unit is not limited to having only the third transmission body and the fourth transmission body. There can be only one third transmission body or only one fourth transmission body, or there can be multiple transmission bodies with the same shape. The transmission bodies in the same double right-angle bend unit are parallel, preferably identical, or similar. Figure 4 In the example, the same structure is placed in a different direction.

[0061] In this application, the outer edge 5 of the cable core cross section is rectangular, or in a special case is square, Figure 2 Although no extension line is drawn, the outer edge of the double right-angle bend unit is indeed extended to the middle of the outer edge of each side of the cable core to form a rectangle; Figure 7 In the embodiment, the outer edge of the double right-angle bending unit is extended to both sides of the outer edge of each side of the cable core to form a rectangle.

[0062] This application has the following main beneficial technical effects: improved flexibility of use, adaptability to different power capacity requirements, more convenient and faster cable stripping, better heat dissipation, and higher construction efficiency.

[0063] The cable in this application can have an aluminum alloy conductor, so it can be called an aluminum alloy power cable. Due to the effective electrical isolation of the main body in the container, it can transmit very high power levels, so it can also be called a high-voltage or ultra-high-voltage cable. The cable in this application can be used in smart grids, and the material of the container and / or protective sheath can be cross-linked polyethylene insulation material, so it can also be called a cross-linked polyethylene insulated power cable.

[0064] The scope of protection of the present invention shall be the technical solutions described in the claims, including equivalent replacement solutions of the technical features in the technical solutions described in the claims. In other words, equivalent replacement improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A power cable with double right-angle bend units, comprising an outer sheath and a cable core, wherein the cable core includes four identical double right-angle bend units, wherein the outer edges of all the double right-angle bend units in the cable core are extended to form a rectangular cross-section, and the outer sheath encases the cable core; characterized in that: The double right-angle bending unit is composed of a double-fold sleeve and third and fourth transmission components located within the double-fold sleeve. The double-fold sleeve is composed of a first vertical sleeve, a horizontal sleeve, and a second vertical sleeve connected in sequence. The first and second vertical sleeves are parallel, the first vertical sleeve is perpendicular to the horizontal sleeve, the other end of the first vertical sleeve is connected to one end of the horizontal sleeve, and the other end of the second vertical sleeve is connected to the other end of the horizontal sleeve. One end of the two vertical sleeves is located on both sides of the horizontal sleeve, respectively. The third and fourth transmission components are parallel to each other and have two right-angle bends distributed within the double-fold sleeve. In the cable core, the four double right-angle bend units have two implementation states; in the first implementation state, one end of the first vertical sleeve of the four double right-angle bend units is respectively located at the four corners of the cable core, and the first and second rectangular cavities are respectively formed between the first vertical sleeves of the two double right-angle bend units in the first and second groups; a third rectangular cavity is formed between the lower edge of the horizontal sleeve of the first double right-angle bend unit in the first group of double right-angle bend units and the lower edge of the horizontal sleeve of the first double right-angle bend unit in the second group of double right-angle bend units; a fourth rectangular cavity is formed between the lower edge of the horizontal sleeve of the second double right-angle bend unit in the first group of double right-angle bend units and the lower edge of the horizontal sleeve of the second double right-angle bend unit in the second group of double right-angle bend units; in the second implementation state, the first vertical sleeves of all double right-angle bend units and the upper edges of the horizontal sleeves of all double right-angle bend units together form a fifth rectangular cavity located in the center, and an external space located at the corner of the cable core is formed outside the lower edge of the horizontal sleeve of each double right-angle bend unit.

2. The power cable with double right-angle bending units according to claim 1, characterized in that: The third transmission component is composed of a third transmission body and a third protective cover wrapped around the third transmission body. The fourth transmission component is composed of a fourth transmission body and a fourth protective cover wrapped around the fourth transmission body.

3. The power cable with double right-angle bending units according to claim 1 or claim 2, characterized in that: The first rectangular cavity has a first transmission unit, the second rectangular cavity has a first transmission unit, The third rectangular cavity has a second transmission unit therein, and the fourth rectangular cavity has a second transmission unit therein.

4. The power cable with double right-angle bending units according to claim 1 or claim 2, characterized in that: There are four third transmission units in the fifth rectangular cavity, and there is one third transmission unit in each external space.

5. The power cable with double right-angle bending units according to claim 2, characterized in that: In the first implementation state, In the first group of double right-angle bend units: the right edges of the two second vertical sleeves are aligned and tightly attached to each other, the surfaces of one end of the two second vertical sleeves are located in the first plane, and a first rectangular cavity is formed above the upper edges of the two horizontal sleeves; In the second set of double right-angle bend units: the right edges of the two second vertical sleeves are aligned and tightly attached to each other, the surfaces of one end of the two second vertical sleeves are located in the second plane, and a second rectangular cavity is formed below the upper edges of the two horizontal sleeves; The surface of one end of the second vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units is aligned with and in close contact with the surface of one end of the second vertical sleeve of the first double right-angle bend unit in the second group of double right-angle bend units; the surface of one end of the second vertical sleeve of the second double right-angle bend unit in the first group of double right-angle bend units is aligned with and in close contact with the surface of one end of the second vertical sleeve of the second double right-angle bend unit in the second group of double right-angle bend units; the first plane coincides with the second plane; A third rectangular cavity is formed between the lower edge of the horizontal sleeve of the first double right-angle bend unit in the first group of double right-angle bend units and the lower edge of the horizontal sleeve of the first double right-angle bend unit in the second group of double right-angle bend units; A fourth rectangular cavity is formed between the lower edge of the horizontal sleeve of the second double right-angle bend unit in the first group of double right-angle bend units and the lower edge of the horizontal sleeve of the second double right-angle bend unit in the second group of double right-angle bend units.

6. The power cable with double right-angle bending units according to claim 5, characterized in that: It also has two first transmission units and two second transmission units. The first transmission unit is composed of a first transmission body and a first protective cover, and the first protective cover covers the first transmission body; the second transmission unit is composed of a second transmission body and a second protective cover, and the second protective cover covers the second transmission body; one first transmission unit is located in the first rectangular cavity, another first transmission unit is located in the second rectangular cavity, one second transmission unit is located in the third rectangular cavity, and another second transmission unit is located in the fourth rectangular cavity.

7. The power cable with double right-angle bending units according to claim 5, characterized in that: In the second implementation state, In the first group of double right-angle bend units: the right edges of the two second vertical sleeves are aligned and in close contact, the surfaces of one ends of the two second vertical sleeves are located in the third plane, the right edge of the second vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units lies in the ninth plane, the left edge of the first vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units lies in the tenth plane, the left edge of the first vertical sleeve of the second double right-angle bend unit in the first group of double right-angle bend units lies in the eleventh plane, and the upper surface of one end of the first vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units lies in the twelfth plane. In the second group of double right-angle bend units: the right edges of the two second vertical sleeves are aligned and in close contact, the surfaces of one ends of the two second vertical sleeves are located in the fourth plane, the third plane, the fourth plane, and the twelfth plane are parallel, the tenth plane and the eleventh plane are parallel, and the third plane is perpendicular to the tenth plane. The surface of one end of the first vertical sleeve of the first double right-angle bend unit in the first group is aligned with and in close contact with the surface of one end of the first vertical sleeve of the first double right-angle bend unit in the second group; the surface of one end of the first vertical sleeve of the second double right-angle bend unit in the first group is aligned with and in close contact with the surface of one end of the first vertical sleeve of the second double right-angle bend unit in the second group; The upper edges of the horizontal sleeves of the two double right-angle bend units in the first group of double right-angle bend units are in the fifth plane, the upper edges of the horizontal sleeves of the two double right-angle bend units in the second group of double right-angle bend units are in the sixth plane, the right side edge of the first vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units and the right side edge of the first vertical sleeve of the first double right-angle bend unit in the second group of double right-angle bend units are in the seventh plane, the right side edge of the first vertical sleeve of the second double right-angle bend unit in the first group of double right-angle bend units and the right side edge of the first vertical sleeve of the second double right-angle bend unit in the second group of double right-angle bend units are in the eighth plane, the fifth plane is parallel to the sixth plane, the seventh plane is parallel to the eighth plane, the fifth plane is perpendicular to the seventh plane, and the fifth to eighth planes form a fifth rectangular cavity; The third plane is parallel to the fifth plane, and the tenth plane is parallel to the seventh plane; The sixth plane, the seventh plane, the ninth plane, and the twelfth plane form a first internal space, the sixth plane, the eighth plane, the ninth plane, and the twelfth plane form a second internal space, the fifth plane, the eighth plane, the ninth plane, and the twelfth plane form a third internal space, the fifth plane, the seventh plane, the ninth plane, and the twelfth plane form a fourth internal space, and the first internal space, the second internal space, the third internal space, and the fourth internal space constitute a fifth rectangular cavity; The fourth plane, the tenth plane, the lower edge of the horizontal sleeve of the first double right-angle bend unit in the second group of double right-angle bend units, and the left edge of the second vertical sleeve of the first double right-angle bend unit in the second group of double right-angle bend units form a first external space; the fourth plane, the eleventh plane, the lower edge of the horizontal sleeve of the second double right-angle bend unit in the second group of double right-angle bend units, and the left edge of the second vertical sleeve of the second double right-angle bend unit in the second group of double right-angle bend units form a second external space; the third plane, the tenth plane, the lower edge of the horizontal sleeve of the first double right-angle bend unit in the first group of double right-angle bend units, and the left edge of the second vertical sleeve of the first double right-angle bend unit in the first group of double right-angle bend units form a third external space; the third plane, the eleventh plane, the lower edge of the horizontal sleeve of the second double right-angle bend unit in the first group of double right-angle bend units, and the left edge of the second vertical sleeve of the second double right-angle bend unit in the first group of double right-angle bend units form a fourth external space.

8. The power cable with double right-angle bending units according to claim 7, characterized in that: The first external space, the second external space, the third external space, the fourth external space, the first internal space, the second internal space, the third internal space, and the fourth internal space all have a third transmission unit; the third transmission unit is composed of a transmission body and a protective body, and the protective body covers the transmission body; the cross-section of the third transmission unit is rectangular.

9. The power cable with double right-angle bending units according to claim 8, characterized in that: The material of the transmission body is aluminum alloy or copper.

10. The power cable with double right-angle bending units according to claim 1 or claim 2, characterized in that: The material of the outer sheath is cross-linked polyethylene insulation material; the material of the double-folded sheath is cross-linked polyethylene insulation material.

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