JPH0655225U - Bobbin for high voltage wire - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent short-circuiting of conductors in high-voltage conductor bobbins as much as possible. In a high-voltage conductor bobbin, a shallow groove 6 that reaches the outermost peripheral surface of the bundle of conductors 4 is provided on the end surface of the collar portion 3, and the circumference of the cylindrical portion 2 on the side of the section 5b adjacent to the groove 6 is provided. A step portion 7 having a supporting surface 7a perpendicular to the flange portion 3 is formed toward the surface, and within a short range in which the winding bundle of the conductor wire 4 of the section portion 5b cannot enter even when expanded. The step 7 was formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bobbin for a high-voltage conductor of the type in which a plurality of flanges are formed on the peripheral surface of a tubular body and a conductor is wound around a section between a pair of flanges.

[0002]

[Prior art]

 A conventional section type bobbin has a plurality of flange portions projecting from the periphery of a tubular body, and a plurality of section portions are formed between a pair of flange portions. A conductor is wrapped around this section, and the collar acts as insulation between sections. In order to guide the conductor from one section to the adjacent section, the collar is provided with a cutout for passing the conductor, and the outermost layer of the conductor in the preceding section to the innermost layer of the adjacent section It is designed to be wound so that the lead wire is guided to the.

[0003]

[Problems to be solved by the device]

 However, according to such a conventional high-voltage wire bobbin, the conductor in the upper layer in a section comes into contact with the conductor in the layer several steps below, or the conductor is passed from one section to the next section through a notch in the collar. When wound, a phenomenon occurs in which the edge of the notch bends toward the side of the section where the conductor is not wound due to the force of expansion of the bundle of conductors. On the other hand, the conductor will cross the conductor diagonally from the outermost layer of the previous section to the innermost layer of the next section, so if you wind the conductor on the adjacent section, It means that it comes into contact with the side surface of the bundle of conductors in the section.

For this reason, the crossover portion of the conductor wire passing from the front section portion to the rear section portion through the notch comes into contact with the outermost layer of the conductor wire bundle up to several layers below the conductor wire bundle. There was a risk that the bundle would short-circuit and melt, or the tension at the time of winding would cause the brim to tilt and the conductor bundle would swell, causing turbulence and wide contact with the crossovers.

[0005]

[The purpose of the device]

 The present invention has been made to solve such a problem, and it is an object of the present invention to prevent the occurrence of a short circuit in the cutout peripheral edge of the collar portion in the bobbin for the high-voltage conductor of the section type.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, a bobbin for a high-voltage conductor according to the present invention is a section in which a plurality of flange portions protruding from the peripheral surface of a tubular body are protruded and a conductor wire is wound between a pair of flange portions. In a high-voltage conductor bobbin that winds a conductor in the previous section and then guides the conductor to an adjacent section where the conductor is not wound, the side of the collar on the side where the conductor is newly wound In addition, a step portion is provided so as to extend from the tip end side of the collar portion toward the rising portion side of the collar portion so as to approach the peripheral surface of the tubular body for a while, and a new section portion is provided through this step portion. It is characterized in that the conductor is guided.

[0007]

[Action]

 According to the high-voltage conductor bobbin of the present invention, if the crossover portion of the conductor wire wound on the outermost layer of the front section is supported by the step portion of the collar portion and guided to the rear section portion, Since the step portion extends from the protruding end of the collar portion toward the rising portion of the collar portion so as to approach the peripheral surface of the tubular body for a while, even if the conductor wire is wound around the rear section portion, the conductor wire bundle of the rear section portion is The side part of does not reach the inside of the step.

Therefore, since the area of the portion where the connecting wire portion between the front section portion and the rear section portion contacts the side surface portion of the conductor wire bundle of the rear section portion is very small, the possibility of causing a short circuit is extremely high. Becomes smaller. Further, by setting the depth of the notch of the collar to the height of the winding thickness of the conductor wire, there is no break in the collar portion and the strength for supporting the conductor wire bundle is greatly increased. Further, since the break of the collar is eliminated, the strength of the collar is maintained, and the collapse of the collar due to the tension of the winding is almost eliminated. For this reason, almost no disturbance of the conductor wire can be seen, the winding structure as designed can be realized, and the strength is increased by minimizing the notch size of the collar portion, which is extremely effective as the conductor wire of the section type bobbin. It will be improved.

[0009]

【Example】

 Hereinafter, a bobbin for a high voltage conductor according to an embodiment of the present invention will be described with reference to the drawings.

FIGS. 1, 2 and 3 are enlarged views of the structure of the collar portion of the bobbin for a high-voltage conductor according to the embodiment of the present invention. Reference numeral 1 indicates the entire bobbin and reference numeral 2 indicates the bobbin. 1 shows a cylindrical portion of 1. A plurality of collar portions 3 are formed on the circumferential surface of the cylindrical portion 2 of the bobbin 1, and between the collar portions 3 and 3, there are formed section portions 5a, 5b, ... The conductive wire 4 is wound in one direction from one end of the bobbin 1 to the other end, and when the conductive wire 4 is wound up to the height of the brim 3 in the front section 5a, The conductor wire 4 is started to be wound around the peripheral surface of the cylindrical portion 2 of the rear section portion 5b.

In this embodiment, as shown in FIG. 1, a shallow groove 6 is formed at the projecting end portion of the collar portion 3, and the step portion 7 extends from the shallow groove 6 toward the peripheral surface of the cylindrical portion 2. It is shaped like an arc. The depth of the shallow groove 6 is such that the outermost peripheral surface of the bundle around which the conductor wire 4 is wound is located at the bottom of the groove 6, and the collar portion 3 that supports the wound bundle of conductor wires 4 is formed. Is formed so as not to decrease by forming the groove 6. The surface 7a supporting the connecting wire portion 4a of the step portion 7 extends substantially at right angles to the brim portion 3 so that the connecting wire portion 4a does not drop to the peripheral surface side of the cylindrical portion 2. In this embodiment, the stepped portion 7 is formed as small as possible on a part of the circumference of the collar portion 3, and the winding bundle of the conductor wire 4 is provided on the crossover portion 4a supported by the stepped portion 7. Even if it expands to the 7 side, it does not come into contact with the crossover portion 4a.

Although the groove 6 is not always essential in the present invention, it is preferable that the groove 6 is formed in order to guide the connecting wire portion 4 a of the conductive wire 4 to the step portion 7. However, when the conductive wire 4 is wound up to the height of the collar portion 3, it is conceivable that the step portion 7 is formed so as to start from the outer peripheral end surface 3a of the collar portion 3.

According to the bobbin for a high-voltage conductor described in this embodiment, a shallow groove 6 that reaches the outermost peripheral surface portion of the bundle of conductor wires 4 wound around the end surface portion of the collar portion 3 is provided, and from this groove 6 A step portion 7 having a supporting surface 7a perpendicular to the collar portion 3 is formed toward the peripheral surface of the cylindrical portion 2 on the side of the adjacent section portion 5b, and the step portion 7 forms the conductor 4 of the section portion 5b. Since it is formed within a short range such that the winding bundle of the wire can not enter even if it expands, the section 5b of the section 5b is connected to the crossover 4a of the conductor 4 guided to the supporting surface 7a of the step 7. The contact of the winding bundle of the conductor wire 4 is prevented as much as possible. Therefore, it is possible to prevent the short circuit of the section type high-voltage conducting wire bobbin as much as possible.

[0014]

【effect】

 According to the high-voltage conductor bobbin of the present invention, if the crossover portion of the conductor wire wound on the outermost layer of the front section is supported by the step portion of the collar portion and guided to the rear section portion, Since the step portion extends from the protruding end of the collar portion toward the rising portion of the collar portion so as to approach the peripheral surface of the tubular body for a while, even if the conductor wire is wound around the rear section portion, the conductor wire bundle of the rear section portion is The side part of does not reach the inside of the step. Therefore, the area where the crossovers between the front section and the rear section come into contact with the side surface of the conductor wire bundle in the rear section is very small, and the possibility of a short circuit is very small. Become.

[Brief description of drawings]

FIG. 1 is an enlarged view of a collar portion of a bobbin for a high voltage wire according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a winding state of a collar portion, a conductor wire, and a crossover portion shown in FIG.

3 is an enlarged view of the introduction state of the crossover portion in the groove portion and the step portion shown in FIG.

[Explanation of symbols]

 1 Bobbin 2 Cylindrical part 3 Collar part 4 Conductor wire 4a Crossover part 5a Front section part 5b Rear section part 6 Shallow groove 7 Step part 7a Supporting surface

Claims (1)

[Scope of utility model registration request] 1. A plurality of brim portions projectingly provided on a peripheral surface of a tubular body are projected to form a section portion around which a conductor wire is wound between a pair of collar portions, and a conductor wire is wound at a front section portion. In a bobbin for a high-voltage conductor that guides and winds a conducting wire to an adjacent section where the conducting wire is not wound later, a side portion of the collar portion on which the conducting wire is newly wound, a rising portion of the collar portion from the protruding end side of the collar portion. A bobbin for a high-voltage conductor, characterized in that a step portion is provided so as to extend toward a side so as to approach the peripheral surface of the tubular body for a while, and the conductor wire is guided to a new section portion via the step portion.