JP6524303B1 - Stranded conductor - Google Patents

Abstract

An object of the present invention is to provide a stranded wire conductor which is easy to manufacture and in which the cross sectional shape of the stranded wire conductor is close to a perfect circle. An inner layer (16) is formed by providing two layers on a center line (11) and an outer peripheral portion of the center line (11), all of which are formed of the same first component line (2). Six large diameter lines composed of the constituent line 2 and the six second constituent lines 3 having a diameter smaller than the diameter of the first constituent line 2 and the outermost layer 15 having a diameter larger than the diameter of the first constituent line 2 4 and 18 small diameter wires 5 and 6 each having a diameter smaller than the diameter of the first constituent line 2, and the first constituent line 2 is at the apex 13A of the outermost inner layer 13 located on the outermost side of the inner layer. Two first constituent lines 2, 2 are provided between the second constituent lines 3, 3 disposed at the outer side of the first constituent line 2A located and located at the closest distance in the circumferential direction of the first outer layer 14. The large diameter wires 4 are disposed in the valley portions 18 of the adjacent first constituent wires 2 and 2, and the large diameter wires 4 and 4 positioned at the closest distance in the circumferential direction of the outermost layer 15 are provided. To were provided with three thin lines 5,6,5. [Selected figure] Figure 1

Description

  The present invention relates to a stranded conductor.

  Conventionally, each of the strands constituting the stranded conductor used for the electric wire or the like is generally a round wire having a circular cross section and the same diameter. A copper wire is mainly used as the wire, and the copper wire plated with tin, nickel, silver, aluminum, or various alloys is used.

  Generally, as shown in FIG. 3, a stranded wire conductor composed of 61 strands is constructed using all the same strands 102, and one strand at the center of the stranded wire conductor 101. Six wires 102 surround the wire 102 as a core to form a first inner layer 103, and further, 12 wires 102 surround an outer periphery thereof to form a second inner layer 104, 18 strands 102 surround and form a first outer layer 105, and 24 strands 102 surround and form an outermost layer 106, which are twisted in the same direction. It is formed. This stranded wire conductor 101 is referred to as prior art 1.

  Since all the strands 102 of the stranded wire conductor 101 are circular in cross section and formed with the same diameter, the strands 102 are arranged in a standard conductor arrangement and stranded. When the conductor 101 is formed, its outer peripheral shape becomes a shape approximate to a hexagonal shape as shown in FIG. 3 and does not become a shape approximate to a round shape.

  In general, the stranded wire conductor 101 is used as a wire or the like (coated wire) after the outer peripheral portion is coated with an insulating material. The cross-sectional shape of the coated wire is desired to be substantially a perfect circle. On the other hand, it is desirable that the insulating material be substantially uniformly coated on the outer peripheral portion of the stranded conductor from the viewpoint of pressure resistance characteristics. From the viewpoint of effective use of resources and weight reduction of the coated wire, it is desirable that the cross-sectional shape of the stranded conductor is a perfect circle.

  In addition, by making the cross-sectional shape of the stranded wire conductor a perfect circle, it is possible to be flexible and excellent in flexibility.

  As described above, among those in which the cross-sectional shape is formed into a true circular shape without compression or at a low compression rate, for example, as shown in FIG. A plurality of strands 211 to 217 having different diameters except the innermost layer 202 is provided as a stranded wire conductor 210 provided with four layers 202 to 205 around the lines and composed of a total of 61 strands. The constituted stranded wire conductor 210 is known (for example, refer to patent documents 1). This stranded wire conductor 210 is referred to as prior art 2.

JP, 2016-207345, A

  In the stranded wire conductor 210 of the prior art 2 described above, the layers 203 to 205 other than the layer 202 positioned at the innermost side are constituted by a plurality of strands 211 to 217 having different diameters, Are difficult to arrange in a predetermined position, and it is difficult to stably manufacture the stranded conductor 210.

  Therefore, an object of the present invention is to provide a stranded wire conductor which is easier to manufacture than the stranded wire conductor 210 of the prior art 2 and in which the cross-sectional shape of the stranded wire conductor is close to a perfect circle. It is.

In order to solve the above-mentioned problems, the invention according to claim 1 comprises an outermost layer, an outer layer formed of a first outer layer provided inside the outermost layer, and an inner layer provided inside the outer layer. Have
The inner layer is formed by arranging two layers of a center line and a layer in which strands are arranged in the circumferential direction around the center line, and all the strands forming the inner layer are the same. Composed of 1 configuration line,
The first outer layer is configured of twelve first constituent lines and six second constituent lines having a diameter smaller than the diameter of the first constituent lines;
The outermost layer is constituted by six large diameter lines having a diameter larger than the diameter of the first constituent line and eighteen small diameter lines having a diameter smaller than the diameter of the first constituent line,
The second constituent line is disposed on the outermost side of the outermost layer located on the outermost side of the inner layer, outside the first constituent line located at the apex on the outermost side in the radial direction, and the periphery of the first outer layer Two first component lines are disposed between the second component lines located at the closest distance in the direction;
The large diameter lines are disposed in the valleys of the adjacent first constituent lines, and the three narrow diameter lines are disposed between the large diameter lines located at the closest distance in the circumferential direction of the outermost layer. It is characterized by the fact that

The invention according to claim 2 is characterized in that, in the invention according to claim 1, the thin wire is constituted by a first thin wire and a second thin wire thinner than the diameter of the first thin wire.
The two first small diameter lines are disposed apart from each other between the large diameter lines located at the closest distance in the circumferential direction of the outermost layer, and the second small diameter line is arranged between the two first small diameter lines. A radial line is provided.

  The invention according to claim 3 is characterized in that, in the invention according to claim 1, the narrow diameter lines are all formed to have the same diameter and are formed thicker than the diameter of the second constituent line.

  The invention according to claim 4 is characterized in that in the invention according to any one of claims 1 to 3, the strands constituting the outermost layer are compressively deformed from the outside.

  The invention according to claim 5 is characterized in that in the invention according to any one of claims 1 to 3, the strands constituting the outermost layer are not compressively deformed from the outside.

  The stranded conductor according to the present invention is composed of the outer layer and the inner layer provided inside the outer layer, and the inner layer is composed of the same first construction line, whereby the position of the strands of the outer layer is disposed at a predetermined position. The manufacturing is easier, the yield is higher, and the manufacturing cost can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS The cross-sectional view of the strand wire conductor which concerns on Example 1 of this invention. The cross-sectional view of the strand wire conductor which concerns on Example 2 of this invention. The cross-sectional view of the strand wire conductor which concerns on prior art 1. FIG. The cross-sectional view of an example of the twisted line | wire conductor which concerns on prior art 2. FIG.

Example 1
FIG. 1 is a schematic cross-sectional view cut in a direction orthogonal to the axial direction of the stranded wire conductor 1 in Example 1 of the present invention, in which the cross-sectional shape of the wire as a base of each wire and the cross-sectional shape of the wire are the same. It is a schematic diagram at the time of having. In addition, in order to avoid the complication of a figure, the oblique line which shows the cross section of each strand was omitted.

  The stranded wire conductor 1 is formed by axially twisting a total of 61 strands arranged as shown in FIG. This element wire includes a first component line (element wire) 2, a second component line (element wire) 3, a large diameter line (element wire) 4, a first small diameter line (element wire) 5, and a first There are five types of two thin diameter wires (strands) 6.

  In addition, the stranded conductor 1 includes a central line 11 constituted by a single first constituent line 2 located at the center, and six first constituent lines disposed so as to cover the outer periphery of the central line 11. And an outermost inner layer 13 constituted by 12 first constituent lines 2 disposed so as to surround the outer periphery of the first inner layer 12, and the outermost inner layer 13 A first outer layer 14 constituted by a total of 18 consisting of 12 first component lines 2 disposed so as to cover the outer periphery and 6 second component lines 3, and the outer periphery of the first outer layer 14 The outermost layer 15 formed by a total of 24 lines consisting of six large diameter lines 4 arranged so as to surround the two, twelve first small diameter lines 5 and six second small diameter lines 6 It consists of Further, an inner layer 16 is constituted by the center line 11, the first inner layer 12 and the outermost inner layer 13, and an outer layer 17 is constituted by the first outer layer 14 and the outermost layer 15.

  The first component wire 2, the second component wire 3, the large diameter wire 4, the first small diameter wire 5, and the second small diameter wire 6 are wire members of circular cross section (round shape) different in diameter. It is formed on the basis of As these wires, a copper wire or a copper wire plated with tin, nickel, silver, an aluminum wire, various alloy wires or the like can be used as in the prior art.

The diameter d ₁ of the second thin line 6 is smallest formed in five strands, the diameter d ₂ of the second configuration line 3 is greater than the diameter d ₁ of the second thin line 6 , the diameter _{d 3} of the first thin line 5 is larger than the diameter _{d 2} of the second configuration line 3, the diameter _{d 4} of the first configuration line 2 is greater than the diameter _{d 3} of the first thin line 5 is formed, the diameter d ₅ of the thick diameter line 4 is larger than the first configuration line 2 having a diameter d _4. The first small diameter wire 5 and the second small diameter wire 6 are small diameter wires whose diameters d ₃ and d ₁ are smaller than the diameter d _{5 of the} large diameter wire 4.

  The center line 11, the first inner layer 12, and the outermost inner layer 13 constituting the inner layer 16 are all configured by the same first component line 2, and the inner layer 16 has a total of 19 first component lines 2 in a standard core arrangement The outer shape of the inner layer 16 is formed in a substantially hexagonal shape, as shown in FIG.

  The second component line 3 forming the first outer layer 14 is positioned farthest from the center A of the center line 11 among the first component lines 2 constituting the outermost inner layer 13 as shown in FIG. It is disposed on the outside of the first constituent line 2A constituting the apex 13A of the outermost inner layer 13 and on a line connecting the center of the center line 11 and the first constituent line 2A constituting the apex 13A. ing. Further, as shown in FIG. 1, the second component lines 3 forming the first outer layer 14 are provided apart in the circumferential direction.

  As shown in FIG. 1, two first constituent lines 2 constituting the first outer layer 14 are disposed in the circumferential direction between the second constituent lines 3 and 3 disposed at the closest position in the circumferential direction. ing.

  As shown in FIG. 1, one large diameter wire 4 constituting the outermost layer 15 is disposed outside the valley portion 18 formed between the first component lines 2 and 2 adjacent in the circumferential direction.

As shown in FIG. 1, the first small diameter wire 5 constituting the outermost layer 15 is one outside the valley portion 19 formed between the first component line 2 and the second component line 3 adjacent in the circumferential direction. It is arranged. That is, in the outermost layer 15, the two first small diameter wires 5, 5 are separated in the circumferential direction between the two large diameter wires 4, 4 located at the closest positions in the circumferential direction. It is arranged.
As shown in FIG. 1, one second thin wire 6 constituting the outermost layer 15 is disposed between two first thin wires 5 and 5 located at the closest position in the circumferential direction. There is.

That is, in the outermost layer 15, three small diameter wires 5, 6, 5 are disposed between the two large diameter wires 4, 4 located at the closest positions in the circumferential direction.
Then, the outer periphery of the stranded wire conductor 1 formed as described above is covered with an insulating material and can be used for a wire or the like.

  According to the above-described configuration, the external shape of the stranded wire conductor 1 can be made a shape close to a substantially perfect circular shape. That is, the distance L1 from the center A of the center line 11 to the outermost end B of the thick line 4 forming the outermost layer 15 and the second thin line 6 forming the outermost layer 15 from the center A of the center line 11 The distance L2 to the outermost edge C is formed to be substantially the same. That is, the outermost edges B and C of all the large diameter lines 4 and the first small diameter lines 5 and the second small diameter lines 6 which form the outermost layer 15 are the center A of the center line 11 as shown in FIG. It is formed so that it may be located near a perfect circle whose radius is the distance L1 from the point to the outermost end B of the large diameter line 4.

For example,
d ₁ = 0.74 d ₄ (3)
d ₂ = 0.81 d ₄ (4)
d ₃ = 0.92 d ₄ (5)
d ₅ = 1.07 d ₄ (6)
By setting so as to satisfy the following relational expression, even if the stranded wire conductor 1 is formed without compression, the distance L1 from the center point A of the stranded wire conductor 11 to the outermost end B of the large diameter wire 4; The distance L2 from the center point A to the outermost end C of the second small diameter wire 6 is substantially the same, and the respective strands can be brought into contact with substantially all the neighboring strands.
The stranded conductor 1 according to the first embodiment has the above-described structure, and thus exhibits the following operation and effects.

  Without compressing the external shape of the stranded wire conductor 1, it can be made into a substantially perfect circular shape, and the strands 2 to 6 can be in contact with substantially all the adjacent strands 2 to 6.

  The outer shape of the stranded wire conductor 1 is substantially circular, and the coating of the insulating material can be made thin and substantially uniform over the entire outer periphery, and the amount of the insulating material can be reduced and the cost can be reduced. .

  The core wire 11, the first inner layer 12, and the outermost inner layer 13 constituting the inner layer 16 are all constituted by the same first constituent line, and a part of the strands constituting the first outer layer 14 is also constituted by the first constituent line As a result, the types of the strands 2 to 6 constituting the stranding conductor 1 can be reduced compared to the stranding conductor 210 of the prior art 2, and the disposition of the strands 2 to 6 is easy, While manufacture of the wire conductor 1 is easy, quality can be stabilized.

In addition, it is assumed that the positional relationship between the first outer layer 14 and the outermost inner layer 13 is deviated in the circumferential direction during manufacturing of the stranded wire conductor 1 by forming the inner layer 16 with the same first configuration line. Also, the influence on the production of the stranded conductor 1 is small, and the stranded conductor 1 can be produced easily and stably as compared with the stranded conductor 210 of the prior art 2 described above.

In addition, the strand which comprises the twisted line | wire conductor 1 of the said Example 1 makes the diameter d1 of the 2nd small diameter wire 6 smallest among five types of strands, and the diameter d2 of the 2nd structure wire 3 The diameter d3 of the first thin wire 5 is larger than the diameter d2 of the second constituent wire 3 and the diameter d4 of the first constituent wire 2 is the first thin wire As long as the diameter d3 of the large diameter wire 4 is larger than the diameter d3 of the large diameter wire 4 and the diameter d4 of the large diameter wire 4 is larger than the diameter d4 of the first component wire 2, it has an arbitrary diameter other than the wire having the diameter described above. The stranded wire conductor 1 can be configured using a strand of wire.
Alternatively, the stranded wire conductor 1 may be formed by compressing the outer peripheral portion of the outermost layer 15 with a compression die or the like. By this compression, the outer peripheral portions of the strands 4, 5 and 6 forming the outermost layer 15 are compressed and deformed, and the outer shape of the stranded conductor can be made closer to a true circle. The compression by a compression die or the like may be performed when manufacturing the stranded wire conductor 1 or may be performed after manufacturing the stranded wire conductor 1. The compression rate is arbitrarily set.

Example 2
FIG. 2 shows Example 2 of the present invention.

  In the first embodiment, although the small diameter wire is constituted by the two types of the first small diameter wire 5 and the second small diameter wire 6, the small diameter wire is constituted by one kind of small diameter wire 25. Even if three small diameter wires 25, 25, 25 are disposed between the two large diameter wires 4, 4 located at the closest positions in the circumferential direction, the twisted wire conductor 21 is configured. Good.

The diameter d ₁₃ of the small diameter wire 25 is larger than the diameter d ₂ of the second component wire 3 and smaller than the diameter d ₄ of the first component wire 2.

For example,
d ₂ = 0.68 d ₄ (7)
d ₁₃ = 0.90 d ₄ (8)
d ₅ = 1.04 d ₄ (9)
By setting so as to satisfy the following relational expression, even if the stranded wire conductor 21 is formed without compression, the distance L1 from the center point A of the stranded wire conductor 21 to the outermost end B of the large diameter wire 4; The distance L3 from the center point A to the outermost end D of the small diameter line 25 can be substantially the same.

  Since the configuration other than the above is the same as that of the first embodiment, the same reference numerals as those of the first embodiment are given and the description thereof is omitted.

  In the second embodiment, the same operation and effect as the first embodiment can be obtained.

1, 21 twisted conductor 2 first component wire 3 second component wire 4 large diameter wire 5 first small diameter wire (small diameter wire)
6 Second diameter wire (small diameter wire)
11 centerline 14 first outer layer 15 outermost layer 16 inner layer 17 outer layer 25 fine diameter wire

Claims (5)

An outer layer comprising an outermost layer, a first outer layer provided on the inner side of the outermost layer, and an inner layer provided on the inner side of the outer layer;
The inner layer is formed by arranging two layers of a center line and a layer in which strands are arranged in the circumferential direction around the center line, and all the strands forming the inner layer are the same. Composed of 1 configuration line,
The first outer layer is configured of twelve first constituent lines and six second constituent lines having a diameter smaller than the diameter of the first constituent lines;
The outermost layer is constituted by six large diameter lines having a diameter larger than the diameter of the first constituent line and eighteen small diameter lines having a diameter smaller than the diameter of the first constituent line,
The second constituent line is disposed on the outermost side of the outermost layer located on the outermost side of the inner layer, outside the first constituent line located at the apex on the outermost side in the radial direction, and the periphery of the first outer layer Two first component lines are disposed between the second component lines located at the closest distance in the direction;
The large diameter lines are disposed in the valleys of the adjacent first constituent lines, and the three narrow diameter lines are disposed between the large diameter lines located at the closest distance in the circumferential direction of the outermost layer. A stranded conductor characterized in that The thin wire is composed of a first thin wire and a second thin wire thinner than the diameter of the first thin wire,
The two first small diameter lines are disposed apart from each other between the large diameter lines located at the closest distance in the circumferential direction of the outermost layer, and the second small diameter line is arranged between the two first small diameter lines. The stranded wire conductor according to claim 1, characterized in that a diameter wire is disposed.   The stranded wire conductor according to claim 1, wherein the small diameter wires are all formed to have the same diameter and are formed thicker than the diameter of the second component wire.   The stranded wire conductor according to any one of claims 1 to 3, wherein the strands constituting the outermost layer are compressively deformed from the outside.   The strand which comprises the said outermost layer is not compressively deformed from the outer side, The strand wire conductor in any one of the Claims 1 thru | or 3 characterized by the above-mentioned.

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