Bundle wire instrument

Abstract

To provide a bundle wire instrument capable of suppressing reduction of allowable current due to heat generation of energization parts.SOLUTION: In a bundle wire instrument 100, one end is joined to a corresponding head part 3 in a plurality of head parts 3 and the other end is inserted into the corresponding head part 3, a corresponding energization part 4 in the plurality of energization parts 4 is fixed in a wound state in each of a plurality of fixing parts 1, one end of a corresponding energization part separation distance maintenance part 2 in the plurality of energization part separation distance maintenance parts 2 is joined to each of the plurality of head parts 3 and the other end of the energization part separation distance maintenance part 2 adjacent to the corresponding energization part separation distance maintenance part 2 is inserted into each of the plurality of head parts. Thus, the plurality of energization part separation distance maintenance parts 2 maintain a state in which the plurality of energization parts 4 are kept away from each other.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a wire bundling device.

Background Art

[0002] A switchboard for controlling electricity is composed of a main circuit for supplying power and a control circuit for controlling the on / off of the main circuit. Conductors and electric wires are used as the energized parts in the main circuit. Generally, in a low-voltage switchboard, the required insulation distance between devices is shorter than that in a high-voltage or extra-high-voltage switchboard. In this case, more devices can be installed in the low-voltage switchboard. Therefore, in a low-voltage switchboard, the use ratio of electric wires, whose shape can be changed more easily than that of conductors, is high, and a plurality of insulated electric wires are bundled to form an electric circuit.

[0003] Also, when current flows through the main circuit, the temperature of the electric wire rises due to Joule heat generated by the resistance. Then, the electric wire deteriorates due to the temperature rise. The maximum value of the current that can flow through an electric wire for a certain wire size is called the allowable current. The allowable current is preset within a range that can tolerate the deterioration of the electric wire due to the temperature rise. Since the allowable current varies depending on the type and size of the electric wire, it is necessary to select an electric wire of the appropriate type and size according to the current value flowing through the electric wire. The same also applies to a cable, which is also a linear energized part.

[0004] For example, in the invention described in Patent Document 1, a multi-conductor cable with a plurality of cables per phase is arranged so that the theoretical values of the impedances between the cables of the same phase are equal. Also, the arrangement of a three-phase nine-wire multi-conductor cable is in a stack of 4 wires in the first layer, 2 wires excluding the center in the second layer, 2 wires in the third layer, and 1 wire in the fourth layer. By adopting the above configuration, the current imbalance between the cables of the same phase can be suppressed, and the temperature rise of the cable caused by the current imbalance can be suppressed.

Prior Art Documents

Patent Documents

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2018-023245 [Summary of the Invention] [Problems to be Solved by the Invention]

[0006] However, in the invention described in Patent Document 1, a plurality of cables, which are current-carrying parts, are bundled together while being in contact with each other. In this case, since the heat dissipation of the cables deteriorates, the allowable current of the cables decreases compared to when the plurality of cables are not in contact with each other. At this time, in order to maintain the allowable current of the cables, it is necessary to increase the size of the cables. Also, increasing the size increases the bending radius of the cables. As a result, a wider wiring space is required when wiring the cables. Thus, there has been a problem that when the size of the cables is increased to maintain the allowable current of the cables, the workability when bundling the cables deteriorates.

[0007] The present disclosure has been made to solve the above-described problems, and an object thereof is to provide a bundling device capable of suppressing a decrease in the allowable current caused by heat generation between current-carrying parts. [Means for Solving the Problems]

[0008] The wire bundling device according to the present disclosure includes a plurality of strip-shaped fixing parts provided corresponding to each of a plurality of linear current-carrying parts, a plurality of head parts provided corresponding to each of the plurality of fixing parts, and a plurality of strip-shaped current-carrying part separation distance maintaining parts provided corresponding to each of the plurality of head parts. Each of the plurality of fixing parts has one end joined to the corresponding head part among the plurality of head parts, and the other end inserted into the corresponding head part to fix the corresponding current-carrying part in a wound state. The plurality of current-carrying part separation distance maintaining parts are joined at one end of the corresponding current-carrying part separation distance maintaining part among the plurality of current-carrying part separation distance maintaining parts to each of the plurality of head parts, and the other end of the corresponding current-carrying part separation distance maintaining part and the other end of the adjacent current-carrying part separation distance maintaining part are inserted, thereby maintaining the separated state of the plurality of current-carrying parts.

[0009] Further, the wire bundling device according to the present disclosure includes a current-carrying part separation distance maintaining part that holds a plurality of linear current-carrying parts while maintaining a separated state from each other, a strip-shaped fixing part that fixes the plurality of current-carrying parts in a separated state to the current-carrying part separation distance maintaining part in a wound state around the plurality of current-carrying parts and the current-carrying part separation distance maintaining part, and a head part to which a part of the current-carrying part separation distance maintaining part is joined, one end of the fixing part is joined, and the other end of the fixing part is inserted.

Effects of the Invention

[0010] According to the present disclosure, the wire bundling device includes a current-carrying part separation distance maintaining part that maintains the separated state of a plurality of linear current-carrying parts from each other. Thereby, since the separated state of the plurality of current-carrying parts is maintained, it is possible to provide a wire bundling device capable of suppressing a decrease in the allowable current due to heat generation between the current-carrying parts.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0012] Hereinafter, the wire bundling device according to the embodiment will be described with reference to the drawings. The following embodiments are merely examples, and it is possible to appropriately combine the embodiments and appropriately change each embodiment. In the figures, the same reference numerals are given to the same configurations. Note that in each drawing, the relative dimensional relationships or shapes of the respective constituent members may be different from the actual ones.

[0013] Embodiment 1. The bundling tool 100 in the first embodiment will be described with reference to Figs. 1, 2, and 3. Fig. 1 is a schematic diagram of the bundling tool 100 in the first embodiment. As shown in Fig. 1, the bundling tool 100 in the first embodiment includes a fixing part 1, a current-carrying part distance maintaining part 2, and a head part 3. Fig. 2 is a schematic diagram of the bundling tool 100 in the first embodiment attached to three current-carrying parts 4. Fig. 3 is a schematic diagram of the bundling tool 100 in the first embodiment attached to three current-carrying parts 4 having a larger diameter than the current-carrying parts 4 in Fig. 2. In the following, the current-carrying parts 4 will be described as electric wires or cables, but are not limited thereto. That is, the current-carrying parts 4 have the same effect as long as they are linear and generate heat when current is applied.

[0014] The fixing part 1 is belt-shaped and is wound around the current-carrying part 4 to fix it. In the wire binding device 100 of the first embodiment, a plurality of fixing parts 1 are provided corresponding to the plurality of current-carrying parts 4, respectively. One end of each of the plurality of fixing parts 1 is joined to a corresponding one of the plurality of head parts 3. The other end of each of the plurality of fixing parts 1 is inserted into a corresponding one of the plurality of head parts 3. In this way, each of the plurality of fixing parts 1 fixes a corresponding one of the plurality of current-carrying parts 4 in a wound state.

[0015] The current-carrying-part separation distance maintaining portion 2 is strip-shaped and maintains the plurality of current-carrying parts 4 in a spaced-apart state. In the wire bundling device 100 of the first embodiment, the plurality of current-carrying-part separation distance maintaining portions 2 are provided corresponding to the plurality of head portions 3, respectively. Moreover, one end of a corresponding current-carrying-part separation distance maintaining portion 2 among the plurality of current-carrying-part separation distance maintaining portions 2 is joined to each of the plurality of head portions 3. Moreover, the other end of a current-carrying-part separation distance maintaining portion 2 adjacent to the corresponding current-carrying-part separation distance maintaining portion 2 among the plurality of current-carrying-part separation distance maintaining portions 2 is inserted into each of the plurality of head portions 3. In this way, the current-carrying-part separation distance maintaining portion 2 maintains the plurality of fixed current-carrying parts 4 in a spaced-apart state.

[0016] In addition, the plurality of energization part separation distance maintaining parts 2 can adjust the separation distance between the plurality of energization parts 4 that are separated from each other according to the length of the other end of the corresponding energization part separation distance maintaining part 2 that is inserted into each of the plurality of head parts 3 and is adjacent to the energization part separation distance maintaining part 2. That is, the longer the length of the other end of the corresponding energization part separation distance maintaining part 2 that is inserted into each of the plurality of head parts 3 and is adjacent to the energization part separation distance maintaining part 2, the shorter the separation distance between the plurality of energization parts 4 will be.

[0017] The head part 3 has a hollow shape into which the other end of the fixing part 1 and the other end of the energization part separation distance maintaining part 2 are inserted. In the wire bundling device 100 of Embodiment 1, a plurality of head parts 3 are provided corresponding to the plurality of fixing parts 1 respectively. Further, the head part 3 includes an insertion inlet on the side where the other end of the fixing part 1 and the other end of the energization part separation distance maintaining part 2 are inserted, and an insertion outlet from which the other end of the fixing part 1 and the other end of the energization part separation distance maintaining part 2 are drawn out. Here, the direction from the insertion inlet to the insertion outlet of the head part 3 is defined as the insertion forward direction 8, and the direction from the insertion outlet to the insertion inlet of the head part 3 is defined as the insertion reverse direction 7. The head part 3 has a structure that prevents the other end of the fixing part 1 and the other end of the energization part separation distance maintaining part 2 inserted from the insertion inlet from being pulled out in the insertion reverse direction 7. The specific structure will be described with reference to FIGS. 4 to 6.

[0018] FIG. 4 is a schematic cross-sectional view taken along line P-P of the head part 3 of Embodiment 1. The head part 3 shown in FIG. 4 is obtained by cutting the head part 3 shown in FIG. 1 along line segment P-P and viewing it in the direction of the arrow. FIG. 5 is a schematic cross-sectional view taken along line Q-Q when pulling out the other end of the fixing part 1 and the other end of the energization part separation distance maintaining part 2 from the head part 3 of Embodiment 1 in the insertion reverse direction 7. FIG. 6 is a schematic cross-sectional view taken along line Q-Q when pulling out the other end of the fixing part 1 and the other end of the energization part separation distance maintaining part 2 from the head part 3 of Embodiment 1 in the insertion forward direction 8. The head parts 3 shown in FIGS. 5 and 6 are obtained by cutting the head part 3 shown in FIG. 4 along line segment Q-Q and viewing it in the direction of the arrow.

[0019] The head portion 3 includes a head main body 3A, a head main body cutout portion 3B, and a head claw portion 3C. The head claw portion 3C is joined to the head main body 3A and has a fulcrum 9 at the joint with the head main body 3A. Also, due to the presence of the head main body cutout portion 3B, the head claw portion 3C can bend starting from the fulcrum 9. The head claw portion 3C has a plurality of protruding portions in a triangular shape on the surface that contacts the other end of the fixing portion 1 and the other end of the energizing portion separation distance maintaining portion 2. Further, the other end of the fixing portion 1 has a plurality of protruding portions 1A on the surface that contacts the head claw portion 3C, and the shape of the protruding portions 1A fits with the protruding portions of the head claw portion 3C. Also, the other end of the energizing portion separation distance maintaining portion 2 has a plurality of protruding portions 2A on the surface that contacts the head claw portion 3C, and the shape of the protruding portions 2A fits with the protruding portions of the head claw portion 3C.

[0020] In FIG. 5, when pulling out the other end of the fixing portion 1 and the other end of the energizing portion separation distance maintaining portion 2 from the head portion 3 in the reverse insertion direction 7, a force acts to push back the protruding portions of the head claw portion 3C in the forward insertion direction 8 of the protruding portions 1A and the protruding portions 2A. Thereby, it is possible to prevent the other end of the fixing portion 1 and the other end of the energizing portion separation distance maintaining portion 2 from being pulled out from the head portion 3.

[0021] Also, in FIG. 6, when pulling out the other end of the fixing portion 1 and the other end of the energizing portion separation distance maintaining portion 2 from the head portion 3 in the forward insertion direction 8, the head claw portion 3C bends starting from the fulcrum 9. Thereby, the protruding portions 1A and the protruding portions 2A are not pushed back by the protruding portions of the head claw portion 3C, and the other end of the fixing portion 1 and the other end of the energizing portion separation distance maintaining portion 2 can be pulled out from the head portion 3.

[0022] As described above, one end of the fixing portion 1 and one end of the energizing portion separation distance maintaining portion 2 are each joined to the corresponding head portion 3. Here, the corresponding fixing portion 1, the energizing portion separation distance maintaining portion 2, and the head portion 3 may be integrated. That is, there may be no joint portion between one end of the fixing portion 1, one end of the energizing portion separation distance maintaining portion 2, and the head portion 3. For example, the fixing portion 1, the energizing portion separation distance maintaining portion 2, and the head portion 3 may be manufactured by integral molding to form one wire bundling device 100. Thereby, since it is not necessary to join the fixing portion 1, the energizing portion separation distance maintaining portion 2, and the head portion 3, the manufacturing cost can be reduced. Further, the elimination of the joint portion improves the strength of the wire bundling device 100.

[0023] A mounting method for mounting the wire bundling device 100 of Embodiment 1 on the energizing portion 4 will be described. FIGS. 2 and 3 show the mounting state of the wire bundling device 100 when bundling three energizing portions 4. As shown in FIGS. 2 and 3, when mounting the wire bundling device 100 on three energizing portions 4, first, the other ends of the three respective fixing portions 1 that are not joined to the head portion 3 are inserted from the insertion inlet of the head portion 3 in the insertion forward direction 8. Thereby, the three fixing portions are in a state of being wound around each of the three energizing portions 4, and each of the energizing portions 4 is fixed by the fixing portion 1.

[0024] Further, the other end of the energizing portion separation distance maintaining portion 2 that is not joined to the head portion 3 is inserted into another adjacent head portion 3 that is separate from the head portion 3 to which one end is joined. At this time, the other end of the energizing portion separation distance maintaining portion 2 is inserted from the insertion inlet of the other adjacent head portion 3 in the insertion forward direction 8. Thereby, the energizing portion separation distance maintaining portion 2 can bundle the energizing portions 4 while maintaining the separated state of the plurality of energizing portions 4 fixed to the fixing portion 1.

[0025] After the above operation is performed on all the energizing parts 4 bundled in the energizing part 4, the surplus length 6 of the fixing part 1 and the energizing part separation distance maintaining part 2 is cut at the cutting part 5. FIG. 7 is a schematic view when a plurality of bundling devices 100 are attached to the energizing part 4 to bundle the energizing part 4. As shown in FIG. 7, the plurality of bundling devices 100 are attached to the energizing part 4 at regular intervals to fix the energizing part 4. Thereby, even in the portion where the bundling device 100 is not attached, the state where the energizing parts 4 are separated from each other is maintained, so that the heat dissipation property of the energizing part 4 is improved. Further, when it is necessary to bend the energizing part 4, since the bundling device 100 is partially attached, the energizing part 4 can be easily bent. Thereby, the bundling device 100 can improve the workability during bundling of the energizing part 4.

[0026] Note that the interval for attaching the bundling device 100 to the energizing part 4 is appropriately changed according to the size of the energizing part 4, the number of the energizing parts 4, the wiring path, and the like. For example, in FIG. 7, when the size of the energizing part 4 is 100 SQ and the number of the energizing parts 4 is 3, the width of the bundling device 100 is about 10 mm, and the interval for attaching the bundling device 100 is set to about 300 mm. Further, for example, when the outer diameter and the separation distance of the energizing part 4 are enlarged equally, if the size of the energizing part 4 is 100 SQ, the separation distance between the energizing parts 4 is about 20 mm. The above-described separation distance between the energizing parts 4 is merely an example and is appropriately set according to each condition.

[0027] Further, as described above, the energizing part separation distance maintaining part 2 can adjust the separation distance between the plurality of energizing parts 4 separated from each other according to the length of the other end of the energizing part separation distance maintaining part 2 adjacent to the corresponding energizing part separation distance maintaining part 2 inserted into each of the plurality of head parts 3. That is, the energizing part separation distance maintaining part 2 can be adjusted to an appropriate separation distance according to the type and size of the energizing part 4 used.

[0028] For example, FIG. 3 shows the mounting state of the bundling device 100 when bundling the current-carrying portions 4 with a larger diameter compared to FIG. 2. In FIG. 3, when the length at which the other ends of the corresponding current-carrying portion separation distance maintaining portions 2 adjacent to the current-carrying portion separation distance maintaining portion 2 are inserted into each of the plurality of head portions 3 is made the same as that in FIG. 2, the separation distance between the current-carrying portions 4 becomes shorter compared to FIG. 2. Therefore, in FIG. 3, by making the length at which the other ends of the corresponding current-carrying portion separation distance maintaining portion 2 and the adjacent current-carrying portion separation distance maintaining portion 2 are inserted into each of the plurality of head portions 3 shorter than that in FIG. 2, the separation distance between the current-carrying portions 4 can be made the same as that in FIG. 2. As a result, for the plurality of types and sizes of current-carrying portions 4, the separation distance between the current-carrying portions 4 can be maintained by one type of bundling device 100.

[0029] As described above, in the bundling device 100 according to the first embodiment, one end of the corresponding current-carrying portion separation distance maintaining portion 2 among the plurality of current-carrying portion separation distance maintaining portions 2 is joined to each of the plurality of head portions 3, and the other end of the current-carrying portion separation distance maintaining portion 2 adjacent to the corresponding current-carrying portion separation distance maintaining portion 2 is inserted, so that the bundling device 100 includes a plurality of current-carrying portion separation distance maintaining portions 2 that maintain the separated state of the plurality of current-carrying portions 4. With the above configuration, the plurality of current-carrying portions 4 do not come into contact with each other and the separated state is maintained. Therefore, the heat dissipation performance of the current-carrying portions 4 is improved compared to the case where the current-carrying portions 4 are in contact with each other. As a result, the bundling device 100 can suppress a decrease in the allowable current due to heat generation between the current-carrying portions 4. Therefore, it is not necessary to increase the size of the current-carrying portion 4 to maintain the allowable current.

[0030] When the size of the current-carrying portion 4 is increased, not only does the bending radius of the current-carrying portion 4 increase, but also the bundling interval needs to be shortened due to an increase in the force applied to the current-carrying portion 4, so the number of locations where the current-carrying portion 4 is bundled increases. Therefore, when the size of the current-carrying portion 4 is increased, the workability during bundling deteriorates. In the bundling device 100 according to the first embodiment, since it is not necessary to increase the size of the current-carrying portion 4, deterioration of workability during bundling can be suppressed. Also, generally, the larger the size of the current-carrying portion 4, the higher the cost. Therefore, the bundling device 100 can reduce the cost compared to the case where the size of the current-carrying portion 4 is increased.

[0031] Further, the energized portion separation distance maintaining portion 2 can adjust the separation distance between a plurality of energized portions 4 that are separated from each other by the length of the other end of the corresponding energized portion separation distance maintaining portion 2 adjacent to the energized portion separation distance maintaining portion 2 inserted into each of the plurality of head portions 3. With the above configuration, in the bundling device 100, the longer the separation distance between the energized portions 4, the larger the allowable current. Therefore, the separation distance between the energized portions 4 can be adjusted so as to obtain an appropriate allowable current according to the type and size of the energized portions 4 to be used. Thus, the bundling device 100 does not need to increase the size of the energized portions 4 to maintain the allowable current, and thus can suppress the deterioration of workability during bundling.

[0032] Also, the bundling device 100 can maintain the separation distance between the energized portions 4 with one type of bundling device 100 for a plurality of types and sizes of energized portions 4 by sufficiently taking the length of the other end of the fixing portion 1 inserted into the head portion 3 and the energized portion separation distance maintaining portion 2. Thereby, since the number of types of the necessary bundling devices 100 can be reduced, the cost of manufacturing the bundling devices 100 can be reduced.

[0033] Further, in the bundling device 100, each of the plurality of fixing portions 1, each of the plurality of energized portion separation distance maintaining portions 2 corresponding to each of the plurality of fixing portions 1, and each of the head portions 3 corresponding to each of the plurality of energized portion separation distance maintaining portions 2 may be integrated. Thereby, since it is not necessary to join the fixing portion 1, the energized portion separation distance maintaining portion 2, and the head portion 3, the manufacturing cost can be reduced. Further, the elimination of the joint portion improves the strength of the bundling device 100.

[0034] Note that, although the mounting state of the bundling device 100 when bundling three energized portions 4 has been described, the present invention is not limited thereto. That is, the bundling device 100 has the same effect that the energized portions 4 can be bundled while maintaining the separation distance between the energized portions 4 as long as the number of energized portions 4 to be bundled is two or more.

[0035] Also, although the wire bundling device 100 has been described by taking the case of bundling the energized portion 4 in the switchboard as an example, it is not limited thereto. That is, if the energized portion 4 itself generates heat and the energized portion 4 is to be bundled, the wire bundling device 100 can be applied.

[0036] Further, in FIG. 5, although each of the other end of the fixing portion 1 and the other end of the energized portion separation distance maintaining portion 2 has been described as having a plurality of protrusions 1A and 2A shaped to fit with the protrusions of the head claw portion 3C, it is not limited thereto. For example, each of the other ends of the plurality of fixing portions 1 inserted into the corresponding head portion 3 and the other end of the energized portion separation distance maintaining portion 2 adjacent to the energized portion separation distance maintaining portion 2 inserted into each of the plurality of head portions 3 may have a shape that fits with each other. In this case, the head claw portion 3C has a shape that can fit with the fixing portion 1 and the energized portion separation distance maintaining portion 2 that are fitted with each other. Thereby, the other end of the fixing portion 1 and the other end of the energized portion separation distance maintaining portion 2 can be simultaneously pulled out from the head portion 3. Therefore, since the wire bundling device 100 can simultaneously adjust the lengths of the other end of the fixing portion 1 and the other end of the energized portion separation distance maintaining portion 2, workability can be improved.

[0037] Also, for the material of the wire bundling device 100, for example, plastics such as nylon, polypropylene, or polyvinyl chloride are used. Also, for the material of the wire bundling device 100, for example, metals such as stainless steel may be used.

[0038] Embodiment 2. The wire bundling device 101 in Embodiment 2 will be described with reference to FIGS. 8, 9, and 10. FIG. 8 is a schematic diagram of the wire bundling device 101 of Embodiment 2. FIG. 9 is a schematic diagram when the wire bundling device 101 of Embodiment 2 is attached to three current-carrying portions 4. FIG. 10 is a schematic diagram when the wire bundling device 101 of Embodiment 2 is attached to four current-carrying portions 4. The wire bundling device 100 of Embodiment 1 is characterized in that one end of the corresponding current-carrying portion separation distance maintaining portion 2 among the plurality of current-carrying portion separation distance maintaining portions 2 is joined to each of the plurality of head portions 3, and the other end of the current-carrying portion separation distance maintaining portion 2 adjacent to the corresponding current-carrying portion separation distance maintaining portion 2 is inserted, so as to include a plurality of current-carrying portion separation distance maintaining portions 2 that maintain the separated state of the plurality of current-carrying portions 4. The wire bundling device 101 in Embodiment 2 is different from the wire bundling device 100 in Embodiment 1 in that it includes one current-carrying portion separation distance maintaining portion 2 that holds the plurality of current-carrying portions 4 while maintaining the separated state of the plurality of current-carrying portions 4. The same components as those in Embodiment 1 are denoted by the same reference numerals. Also, a detailed description of the same components as those in Embodiment 1 will be omitted, and mainly the components different from those in Embodiment 1 will be described.

[0039] As shown in FIG. 8, the wire bundling device 101 of Embodiment 2 includes a fixing portion 1, a current-carrying portion separation distance maintaining portion 2, and a head portion 3. Since the structure for preventing the other end of the fixing portion 1 inserted from the insertion inlet of the head portion 3 in Embodiment 2 from being pulled out in the reverse insertion direction 7 is the same as that in Embodiment 1, a detailed description thereof will be omitted.

[0040] In Embodiment 2, the energized portion separation distance maintaining portion 2 includes a number of energized portion holding portions 10 corresponding to the number of the energized portions 4 to be bundled. The energized portion holding portion 10 has a shape that fits the diameter of the energized portion 4, and the energized portion 4 can be held by fitting the energized portion 4 therein. That is, one energized portion separation distance maintaining portion 2 can hold a plurality of energized portions 4 while maintaining a state of being separated from each other. Since the energized portion holding portions 10 are integrated with each other, one energized portion separation distance maintaining portion 2 can hold a plurality of energized portions 4 collectively. Thereby, when the energized portion 4 is fitted to the energized portion holding portion 10, the energized portion separation distance maintaining portion 2 can maintain the separation distance between the energized portions 4. The shape of the energized portion separation distance maintaining portion 2 is designed such that the separation distance between the plurality of energized portions 4 to be bundled is suitable for the type and size of the energized portions 4 to be used. Also, a part of the energized portion separation distance maintaining portion 2 is joined to the head portion 3.

[0041] The fixing portion 1 is in a band shape, and one end of the fixing portion 1 is joined to the head portion 3 to which a part of the energized portion separation distance maintaining portion 2 is joined. Also, the other end of the fixing portion 1 is inserted into the head portion 3 in a state where the fixing portion 1 is wound around the plurality of energized portions 4 and the energized portion separation distance maintaining portion 2 that holds the plurality of energized portions 4. That is, the fixing portion 1 fixes the plurality of energized portions 4 held by the energized portion separation distance maintaining portion 2 in a state of being separated from each other to the energized portion separation distance maintaining portion 2.

[0042] A mounting method for mounting the bundling device 101 of Embodiment 2 on the energized portion 4 will be described. FIG. 9 shows a mounted state of the bundling device 101 when bundling three energized portions 4. As shown in FIG. 9, when mounting the bundling device 101 on three energized portions 4, first, all three energized portions 4 are fitted to the energized portion holding portion 10. Then, with the other end of the fixing portion 1 wound around the entire plurality of energized portions 4 and the energized portion separation distance maintaining portion 2 so as to go around the energized portion separation distance maintaining portion 2 that holds the plurality of energized portions 4, it is inserted from the insertion inlet of the head portion 3 in the insertion forward direction 8. Thereby, the three energized portions 4 are fixed to the energized portion separation distance maintaining portion 2 by the fixing portion 1.

[0043] After the above operation is performed, the excess length 6 of the fixing part 1 is cut at the cutting part 5. Then, as in the first embodiment, a plurality of wire bundling devices 101 are attached to the energizing part 4 at regular intervals to fix the energizing part 4. As a result, even in a portion where the wire bundling device 101 is not mounted, the state where the energizing parts 4 are separated from each other is maintained, so that the heat dissipation property of the energizing part 4 is improved. Further, when it is necessary to bend the energizing part 4, since the wire bundling device 101 is partially mounted, the energizing part 4 can be easily bent. Thereby, the wire bundling device 101 can improve the workability during wire bundling of the energizing part 4.

[0044] Further, the fixing part 1, the energizing part separation distance maintaining part 2, and the head part 3 may be integrated. That is, there may be no joint part at one end of the fixing part 1, a part of the energizing part separation distance maintaining part 2, and the head part 3. For example, the fixing part 1, the energizing part separation distance maintaining part 2, and the head part 3 may be manufactured by integral molding to form one wire bundling device 101.

[0045] As described above, the wire bundling device 101 in the second embodiment includes an energizing part separation distance maintaining part 2 that holds a plurality of energizing parts 4 while maintaining a state of being separated from each other. With the above configuration, the plurality of energizing parts 4 do not come into contact with each other and are maintained in a separated state, so that the heat dissipation property of the energizing parts 4 is enhanced as compared with the case where the energizing parts 4 are in contact with each other. Thereby, the wire bundling device 101 can suppress a decrease in the allowable current due to heat generation between the energizing parts 4. Therefore, since it is not necessary to increase the size of the energizing part 4 to maintain the allowable current, the wire bundling device 101 can suppress a deterioration in workability during wire bundling. Further, the wire bundling device 101 can reduce the cost as compared with the case where the size of the energizing part 4 is increased.

[0046] Further, the wire bundling device 101 in the second embodiment can hold a plurality of energizing parts 4 collectively with one energizing part separation distance maintaining part 2. As a result, it is not necessary to attach the wire bundling device 101 for each energizing part 4, so that the workability is improved. Further, since the separation distance between the energizing parts 4 is predetermined, it is not necessary to adjust the separation distance between the energizing parts 4, and the workability is improved.

[0047] Further, the fixing part 1, the energizing part separation distance maintaining part 2, and the head part 3 may be integrated. Thereby, since it is not necessary to join the fixing part 1, the energizing part separation distance maintaining part 2, and the head part 3, the manufacturing cost can be reduced. Further, the elimination of the joint part improves the strength of the wire bundling device 101.

[0048] Note that, regarding the wire bundling device 101 of the second embodiment, the mounting state of the wire bundling device 101 when bundling three energizing parts 4 has been described, but the present invention is not limited to this. That is, the wire bundling device 101 has the same effect of being able to bundle the energizing parts 4 while maintaining the separation distance between the energizing parts 4 as long as there are two or more energizing parts 4 to be bundled. For example, as shown in FIG. 10, four energizing parts 4 may be bundled. Even in this case, the bundling is performed in the same procedure as when there are three energizing parts 4. Further, at this time, the shape of the energizing part separation distance maintaining part 2 is designed such that the separation distance between the plurality of energizing parts 4 to be bundled is suitable for the type and size of the energizing part 4 to be used.

[0049] Note that, in the wire bundling device 101 in the second embodiment, since the energizing part separation distance maintaining part 2 is not inserted into the head part 3, the head part 3 may have a shape into which at least the other end of the fixing part 1 is inserted.

[0050] (Appendix 1) A plurality of strip-shaped fixing parts provided corresponding to each of the plurality of linear energizing parts, A plurality of head parts provided corresponding to each of the plurality of fixing parts, A plurality of strip-shaped energizing part separation distance maintaining parts provided corresponding to each of the plurality of head parts, and Each of the plurality of fixing parts has one end joined to the corresponding head part among the plurality of head parts, and the other end is inserted into the corresponding head part to fix the corresponding energizing part among the plurality of energizing parts in a wound state. The plurality of energized portion separation distance maintaining portions maintain the separated state of the plurality of energized portions by having one end of the corresponding energized portion separation distance maintaining portion joined to each of the plurality of head portions and the other end of the energized portion separation distance maintaining portion adjacent to the corresponding energized portion separation distance maintaining portion inserted therein. A wire bundling device characterized by the above. (Appendix 2) A plurality of linear energized portions, an energized portion separation distance maintaining portion that holds the plurality of energized portions while maintaining a separated state from each other, A strip-shaped fixing portion that fixes the plurality of energized portions in a state of being wound around the plurality of energized portions and the energized portion separation distance maintaining portion while maintaining the separated state of the plurality of energized portions from each other, A head portion to which a part of the energized portion separation distance maintaining portion is joined, one end of the fixing portion is joined, and the other end of the fixing portion is inserted, A wire bundling device comprising: (Appendix 3) The plurality of energized portion separation distance maintaining portions adjust the separation distance of the plurality of energized portions separated from each other according to the length of the other end of the energized portion separation distance maintaining portion adjacent to the corresponding energized portion separation distance maintaining portion, which is inserted into each of the plurality of head portions. The wire bundling device according to Appendix 1. (Appendix 4) Each of the other ends of the plurality of fixing portions inserted into the corresponding head portions and the other ends of the energized portion separation distance maintaining portions adjacent to the corresponding energized portion separation distance maintaining portions inserted into each of the plurality of head portions have a shape that fits together. The wire bundling device according to Appendix 1 or Appendix 3. (Appendix 5) Each of the plurality of fixing portions, each of the plurality of energized portion separation distance maintaining portions corresponding to each of the plurality of fixing portions, and each of the head portions corresponding to each of the plurality of energized portion separation distance maintaining portions are integral. The wire bundling device according to Appendix 1, Appendix 3, or Appendix 4. (Appendix 6) The energized portion separation distance maintaining portion, the fixing portion, and the head portion are integral. The wire bundling device described in Supplementary Note 2.

Explanation of symbols

[0051] 100, 101 wire bundling devices, 1 fixing part, 1A protrusion at the other end of the fixing part, 2 energizing part separation distance maintaining part, 2A protrusion at the other end of the energizing part separation distance maintaining part, 3 head part, 3A head body, 3B head body cutout part, 3C head claw part, 4 energizing part, 5 cutting part, 6 extra length, 7 reverse insertion direction, 8 forward insertion direction, 9 fulcrum, 10 energizing part holding part

Claims

1. A plurality of strip-shaped fixing parts provided corresponding to each of a plurality of linear current-carrying parts, A plurality of head parts provided corresponding to each of the plurality of fixing parts, A plurality of strip-shaped current-carrying part separation distance maintaining parts provided corresponding to each of the plurality of head parts, and comprising: Each of the plurality of fixing parts has one end joined to the corresponding head part among the plurality of head parts, and the other end is inserted into the corresponding head part to fix the corresponding current-carrying part among the plurality of current-carrying parts in a wound state, Each of the plurality of current-carrying part separation distance maintaining parts has one end of the corresponding current-carrying part separation distance maintaining part joined to each of the plurality of head parts, and the other end of the current-carrying part separation distance maintaining part adjacent to the corresponding current-carrying part separation distance maintaining part is inserted, thereby maintaining the state in which the plurality of current-carrying parts are separated from each other A wire bundling device characterized by the above.

2. A current-carrying part separation distance maintaining part that holds a plurality of linear current-carrying parts while maintaining a state of being separated from each other, A strip-shaped fixing part that fixes the plurality of current-carrying parts to the current-carrying part separation distance maintaining part in a state of being separated from each other while being wound around the plurality of current-carrying parts and the current-carrying part separation distance maintaining part, A head part to which a part of the current-carrying part separation distance maintaining part is joined, one end of the fixing part is joined, and the other end of the fixing part is inserted, A wire bundling device comprising:

3. The plurality of current-carrying part separation distance maintaining parts adjust the separation distance of the plurality of current-carrying parts separated from each other according to the length of the other end of the current-carrying part separation distance maintaining part adjacent to the corresponding current-carrying part separation distance maintaining part, which is inserted into each of the plurality of head parts The wire bundling device according to Claim 1.

4. The other end of each of the plurality of fixing parts inserted into the corresponding head part, and the other end of the energization part separation distance maintaining part adjacent to the corresponding energization part separation distance maintaining part inserted into each of the plurality of head parts have a shape that fits together with each other. The wire bundling device according to claim 1.

5. Each of the plurality of fixing parts, each of the plurality of energization part separation distance maintaining parts corresponding to each of the plurality of fixing parts, and each of the head parts corresponding to each of the plurality of energization part separation distance maintaining parts are integral. The wire bundling device according to claim 1.

6. The energization part separation distance maintaining part, the fixing part, and the head part are integral. The wire bundling device according to claim 2.

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