WO2024127642A1 - Polymer-type lightning arrestor - Google Patents

Polymer-type lightning arrestor Download PDF

Info

Publication number
WO2024127642A1
WO2024127642A1 PCT/JP2022/046439 JP2022046439W WO2024127642A1 WO 2024127642 A1 WO2024127642 A1 WO 2024127642A1 JP 2022046439 W JP2022046439 W JP 2022046439W WO 2024127642 A1 WO2024127642 A1 WO 2024127642A1
Authority
WO
WIPO (PCT)
Prior art keywords
insulating tape
polymer
laminate
type lightning
tape portion
Prior art date
Application number
PCT/JP2022/046439
Other languages
French (fr)
Japanese (ja)
Inventor
成彦 後藤
富和 安食
智基 千葉
靖宣 春日
孝人 深野
Original Assignee
株式会社 東芝
東芝エネルギーシステムズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社 東芝, 東芝エネルギーシステムズ株式会社 filed Critical 株式会社 東芝
Priority to PCT/JP2022/046439 priority Critical patent/WO2024127642A1/en
Publication of WO2024127642A1 publication Critical patent/WO2024127642A1/en

Links

Images

Definitions

  • An embodiment of the present invention relates to a polymer lightning arrester.
  • Lightning arresters are installed to protect equipment from abnormal voltages (surges) caused by lightning strikes and other events.
  • Lightning arresters have an internal element in which a pair of electrodes are arranged to sandwich multiple non-linear resistors, the main component of which is zinc oxide.
  • the non-linear resistors are insulating when a normal voltage is applied, but when an abnormal voltage is applied, the resistance value drops and they become conductive.
  • Known types of lightning arresters include ceramic insulator type and polymer type.
  • a porcelain insulator type surge arrester In a porcelain insulator type surge arrester, the internal elements, including a non-linear resistor, are enclosed in a porcelain insulator tube. In a porcelain insulator type surge arrester, the inside of the porcelain insulator tube must be made airtight to prevent deterioration of the internal elements, so the number of parts is large. In addition, the manufacturing lead time for porcelain insulator tubes is long.
  • a polymer-type surge arrester has an outer casing made of polymer resin that encases the internal elements, including the nonlinear resistor.
  • the outer casing is formed by molding a polymer resin such as silicone rubber.
  • Polymer-type lightning arresters require weak points with low mechanical strength to be formed in the outer casing in order to release the internal pressure that occurs during a failure, but the outer casing must be formed so that it has the mechanical strength to withstand external forces such as wind pressure. In order to maintain mechanical strength, polymer-type lightning arresters require a large outer diameter. For this reason, the manufacturing costs of polymer-type lightning arresters may increase in order to obtain sufficient mechanical strength.
  • the problem that this invention aims to solve is to provide a polymer-type lightning arrester that has sufficient mechanical strength even if it has weak points, and that can reduce manufacturing costs.
  • the polymer type lightning arrester of the embodiment includes an internal element and an outer cover.
  • the internal element includes a laminate in which a pair of electrodes are arranged in the axial direction to sandwich at least one non-linear resistor, and the non-linear resistor and the pair of electrodes that constitute the laminate are fastened using a fastening member.
  • the outer cover is formed of a polymer resin so as to cover the periphery of the internal element.
  • the fastening member includes a plurality of first insulating tape portions and a second insulating tape portion. The plurality of first insulating tape portions are attached to the periphery of the laminate so as to extend in the axial direction.
  • the second insulating tape portion is wound in the circumferential direction of the laminate so as to include a portion that is attached to the periphery of the laminate via the plurality of first insulating tape portions.
  • the plurality of first insulating tape portions are attached to the periphery of the laminate so as to be lined up with gaps in the circumferential direction.
  • FIG. 1 is a cross-sectional view showing an entire polymer-type lightning arrester 1 according to an embodiment of the present invention.
  • FIG. 2 is a diagram showing a cross section of an internal element 200 in the polymer-type lightning arrester 1 according to the embodiment.
  • FIG. 3 is a diagram showing the outer peripheral surface of the internal element 200 in the polymer-type lightning arrester 1 according to the embodiment.
  • FIG. 4 is a diagram showing the outer peripheral surface of the internal element 200 in the polymer-type lightning arrester 1 according to the first modified embodiment.
  • FIG. 5 is a diagram showing the outer peripheral surface of the internal element 200 in the polymer-type lightning arrester 1 according to the second modified embodiment.
  • FIG. 1 is a cross-sectional view showing the entire polymer-type surge arrester 1 according to the embodiment.
  • the polymer lightning arrester 1 comprises an internal element 200 and an outer shell 201.
  • the internal element 200 includes a laminate 100 and a fastening member 40.
  • the laminate 100 includes a non-linear resistor 11 and an electrode 31.
  • nonlinear resistors 11 There are multiple nonlinear resistors 11, and the multiple nonlinear resistors 11 are stacked in the axial direction AX (vertical direction in Figure 1).
  • the nonlinear resistors 11 are, for example, disk-shaped sintered bodies whose main component is zinc oxide, and are insulating when a normal voltage is applied, but when an abnormal voltage higher than the normal voltage is applied, the resistance value drops and the resistors become conductive.
  • the electrodes 31 are a pair, and are arranged in the axial direction AX so that the pair of electrodes 31 sandwich the multiple non-linear resistors 11. In other words, the pair of electrodes 31 are stacked coaxially with the multiple non-linear resistors 11.
  • the electrode 31 is cylindrical and made of a conductive material such as metal.
  • the electrode 31 is formed with a female thread to which a male screw is attached.
  • the female thread is formed on the surface of the electrode 31 opposite to the surface on which the non-linear resistors 11 are located.
  • the electrode 31 is also formed with a recess T31 in a portion located at the center of the outer circumferential surface in the axial direction AX.
  • the fastening member 40 is provided on the outer peripheral surface of the laminate 100 to fasten the nonlinear resistors 11 between each other and between the nonlinear resistors 11 and the electrodes 31.
  • the fastening member 40 is provided across the recess T31 of the electrode 31 located at one end (the upper end in FIG. 1) of the pair of electrodes 31 and the recess T31 of the electrode 31 located at the other end (the lower end in FIG. 1).
  • a fixing tape is wound around the recess T31 formed in each of the pair of electrodes 31 so as to cover the fastening member 40, thereby fixing the fastening member 40 to the laminate 100. Details of the fastening member 40 in this embodiment will be described later.
  • the outer cover 201 is formed of a polymer resin so as to directly cover the periphery of the internal element 200.
  • the outer cover 201 functions as an insulating container that houses the internal element 200 therein, and is made of an insulating polymer resin such as silicone rubber.
  • Figure 2 is a diagram showing a cross section of the internal element 200 in the polymer-type lightning arrester 1 according to the embodiment.
  • Figure 2 shows the A-A portion in Figure 1, of the plane perpendicular to the axial direction AX (the vertical direction in Figure 1) in the internal element 200.
  • Figure 3 is a diagram showing the outer peripheral surface of the internal element 200 in the polymer-type lightning arrester 1 according to the embodiment.
  • the vertical direction corresponds to the axial direction AX of the internal element 200
  • the horizontal direction corresponds to the circumferential direction CR (see Figure 2) of the internal element 200.
  • Figure 3 shows the outer peripheral surface of part B surrounded by a dashed line in Figure 1, where the electrode 31 and the non-linear resistor 11 are laminated in the internal element 200.
  • the fastening member 40 of this embodiment includes a first insulating tape portion 41 and a second insulating tape portion 42.
  • the first insulating tape portion 41 and the second insulating tape portion 42 are formed, for example, using insulating tape having an adhesive layer provided on one side of a resin film substrate.
  • FIG. 3 shows the outer peripheral surface of the internal element 200, and does not show a cross section of the internal element 200, but hatching is applied to distinguish the nonlinear resistor 11, the electrode 31, and the first insulating tape portion 41.
  • the end portion of the second insulating tape portion 42 is shown by a thick dashed line.
  • the first insulating tape portion 41 and the second insulating tape portion 42 that make up the fastening member 40 will be described in turn.
  • First insulating tape portion 41 2 and 3, the first insulating tape portion 41 is attached to the periphery of the laminate 100 (see FIG. 1) in which a plurality of non-linear resistors 11 and pairs of electrodes 31 are laminated so as to extend in the axial direction AX.
  • the first insulating tape portion 41 is formed, for example, using an insulating tape having an adhesive layer provided on one surface of a resin film base material.
  • each of the multiple first insulating tape portions 41 is attached so as to be lined up in the circumferential direction CR with a gap G1 between them.
  • Second insulating tape portion 42 2 and 3 the second insulating tape portion 42 is wound in the circumferential direction CR of the laminate 100 so as to include a portion attached to the periphery of the laminate 100 via a plurality of first insulating tape portions 41.
  • the second insulating tape portion 42 is configured using, for example, an insulating tape made of the same material as the first insulating tape portion 41.
  • the second insulating tape portion 42 having a width HA0 is wound in a spiral shape at an equal pitch and attached to the outer peripheral surface of the laminate 100.
  • the width HA0 of the second insulating tape portion 42 having a width HA0 may be the same as the width HC0 of the first insulating tape portion 41, or may be different.
  • the second insulating tape portion 42 is spirally wound so that the second insulating tape portion 42 is aligned flush in the axial direction AX on the outer circumferential surface of the laminate 100. That is, in this embodiment, one side end (the lower side end in FIG. 3) of the first wound second insulating tape portion 42 contacts the other side end (the upper side end in FIG. 3) of the second wound second insulating tape portion 42, with no gap between them. Also, there is no overlap in the axial direction AX between one side end (the lower side end in FIG. 3) of the first wound second insulating tape portion 42 and the other side end (the upper side end in FIG. 3) of the second wound second insulating tape portion 42.
  • the internal element 200 is first produced.
  • a laminate 100 is produced by stacking a plurality of nonlinear resistors 11 and a pair of electrodes 31.
  • a fastening member 40 including a first insulating tape portion 41 and a second insulating tape portion 42 is provided on the outer peripheral surface of the laminate 100, thereby fastening the multiple nonlinear resistors 11 and the pair of electrodes 31 together.
  • the multiple first insulating tape portions 41 are attached to the outer peripheral surface of the laminate 100 so that the multiple first insulating tape portions 41 extend in the axial direction AX around the laminate 100 and are aligned in the circumferential direction CR with gaps G1 between them.
  • the second insulating tape portion 42 is wound in the circumferential direction CR of the laminate 100 so that the second insulating tape portion 42 includes a portion attached around the laminate 100 with the multiple first insulating tape portions 41 between them (see Figures 2 and 3).
  • a fixing tape (not shown) is wrapped around the recesses T31 (see FIG. 1) formed in each of the pair of electrodes 31 so as to cover the fastening member 40 including the first insulating tape portion 41 and the second insulating tape portion 42. This fixes the fastening member 40 to the laminate 100.
  • the outer skin 201 is created so that the outer skin 201 directly surrounds the inner element 200.
  • the outer skin 201 is created by molding an insulating polymer resin such as silicone rubber.
  • the polymer lightning arrester 1 is completed.
  • the fastening member 40 includes a plurality of first insulating tape portions 41 and a second insulating tape portion 42.
  • Each of the plurality of first insulating tape portions 41 is attached to the periphery of the laminate 100 so as to extend in the axial direction AX, and a gap G1 is interposed in the circumferential direction CR.
  • the second insulating tape portion 42 is spirally wound in the circumferential direction CR of the laminate 100, via the plurality of first insulating tape portions 41, so as to include the portion attached to the periphery of the laminate 100.
  • the portion where the gap G1 between the multiple first insulating tape portions 41 is located has a smaller mechanical strength than the portion where the first insulating tape portion 41 and the second insulating tape portion 42 are laminated. Therefore, the portion where the gap G1 is located in the fastening member 40 functions as a weak point of the polymer-type lightning arrester 1, so that the internal pressure generated when the polymer-type lightning arrester 1 breaks down can be effectively released from the gap G1.
  • the second insulating tape portion 42 is wrapped around the laminate 100 via the multiple first insulating tape portions 41, so that the polymer-type lightning arrester 1 of this embodiment can easily obtain sufficient mechanical strength to withstand external forces such as wind pressure.
  • the polymer lightning arrester of this embodiment is able to obtain sufficient mechanical strength even if it has weak points, and it is possible to reduce manufacturing costs.
  • the second insulating tape portion 42 is wound in a spiral shape around the outer circumferential surface of the laminate 100, but the present invention is not limited to this.
  • FIG. 4 is a diagram showing the outer surface of the internal element 200 in the polymer-type lightning arrester 1 according to the first modified embodiment. As in FIG. 3, FIG. 4 shows part B surrounded by a dashed line in FIG. 1.
  • the second insulating tape portion 42 may be wrapped around the outer circumferential surface of the laminate 100 so that the extension direction of the second insulating tape portion 42 is aligned with the circumferential direction CR of the laminate 100. Even in this case, the same effect as in the above embodiment can be achieved.
  • FIG. 5 is a diagram showing an outer peripheral surface of the internal element 200 in the polymer-type lightning arrester 1 according to the modified example 2 of the embodiment.
  • Fig. 5 shows the part B surrounded by the dashed line in Fig. 1, similar to Fig. 4.
  • a gap G2 of width HA1 may be interposed between the second insulating tape portions 42 aligned in the axial direction AX of the laminate 100.
  • a gap G2 of width HA1 may be interposed between the second insulating tape portions 42 aligned in the axial direction AX. Even in this case, the same effect as in the above embodiment can be achieved.
  • the width HA1, which is the gap G2 is, for example, 5 mm or less, taking into account the restraining force on the first insulating tape 41.
  • the second insulating tape portions 42 may be wound so as to include overlapping portions between the second insulating tape portions 42 aligned in the axial direction AX.
  • the fastening member 40 has been described with respect to a case where both the first insulating tape portion 41 and the second insulating tape portion 42 are configured using insulating tapes made of the same material. That is, in the above embodiment, the case where both the first insulating tape portion 41 and the second insulating tape portion 42 have the same tensile strength has been described. However, this is not limited to this. It is preferable that the fastening member 40 is configured so that the tensile strength of the first insulating tape portion 41 is higher than the tensile strength of the second insulating tape portion 42.
  • both the first insulating tape portion 41 and the second insulating tape portion 42 are configured using insulating tapes made of the same material, it is preferable that the number of laminations of the insulating tapes constituting the first insulating tape portion 41 is greater than the number of laminations of the insulating tapes constituting the second insulating tape portion 42.
  • the first insulating tape portion 41 and the second insulating tape portion 42 may be configured with insulating tapes made of different materials so that the tensile strength of the first insulating tape portion 41 is higher than the tensile strength of the second insulating tape portion 42. This makes it possible to obtain sufficient mechanical strength even if weak points are present.
  • the number of first insulating tape portions 41 arranged side by side in the circumferential direction CR is described as three, but this is not limited to this.
  • the number of first insulating tape portions 41 arranged side by side in the circumferential direction CR may be more than one, but considering the assembly of the laminate 100, it is preferable that the number be three or more and five or less.
  • the width HC1 of the gap G1 between the first insulating tape portions 41 aligned in the circumferential direction CR is 5% or more and 10% or less of the outer periphery HC of the laminate 100 (5% ⁇ 100*HC1/HC ⁇ 10%).
  • each part may be configured as described above.

Landscapes

  • Thermistors And Varistors (AREA)

Abstract

Provided is a polymer-type lightning arrestor that can obtain sufficient mechanical strength even while having a weak section, and achieve a reduction in manufacturing costs. In the polymer-type lightning arrestor according to an embodiment, an internal element includes a layered body in which a pair of electrodes are disposed in an axial direction so as to sandwich a nonlinear resistance body, and the nonlinear resistance body and the pair of electrodes that constitute the layered body are fastened using a fastening member. The fastening member includes a plurality of first insulating tape sections and a second insulating tape section. The plurality of first insulating tape sections are adhered around the layered body so as to extend in the axial direction. The second insulating tape section is wound in the circumferential direction of the layered body so as to include a portion adhered around the layered body with the plurality of first insulating tape sections therebetween. Here, the plurality of first insulating tape sections are adhered around the layered body so as to be arranged side by side with a gap therebetween in the circumferential direction.

Description

ポリマー形避雷器Polymer type surge arrester
　本発明の実施形態は、ポリマー形避雷器に関する。 An embodiment of the present invention relates to a polymer lightning arrester.
　電力系統においては、落雷などによる異常電圧（サージ）から設備を保護するために、避雷器が設置されている。避雷器は、たとえば、酸化亜鉛を主成分とした複数の非直線抵抗体を挟むように一対の電極が配置された内部要素を備えている。内部要素において、非直線抵抗体は、正常な電圧が作用したときには絶縁性であり、異常電圧が作用したときには抵抗値が低下して導電性になる。 In power systems, lightning arresters are installed to protect equipment from abnormal voltages (surges) caused by lightning strikes and other events. Lightning arresters have an internal element in which a pair of electrodes are arranged to sandwich multiple non-linear resistors, the main component of which is zinc oxide. In the internal element, the non-linear resistors are insulating when a normal voltage is applied, but when an abnormal voltage is applied, the resistance value drops and they become conductive.
　避雷器として、磁器碍子形避雷器およびポリマー形避雷器等が知られている。 　Known types of lightning arresters include ceramic insulator type and polymer type.
　磁器碍子形避雷器は、非直線抵抗体を含む内部要素が磁器碍管に封入されている。磁器碍子形避雷器は、内部要素の劣化を防ぐために磁器碍管の内部を気密にすることが必要であるため、部品点数が多くなる。また、磁器碍管の製造リードタイムが長い。 　In a porcelain insulator type surge arrester, the internal elements, including a non-linear resistor, are enclosed in a porcelain insulator tube. In a porcelain insulator type surge arrester, the inside of the porcelain insulator tube must be made airtight to prevent deterioration of the internal elements, so the number of parts is large. In addition, the manufacturing lead time for porcelain insulator tubes is long.
　これに対して、ポリマー形避雷器は、非直線抵抗体を含む内部要素の周囲がポリマー樹脂の外皮で覆われている。ポリマー形避雷器において、外皮は、シリコーンゴムなどのポリマー樹脂をモールドすることによって形成されている。このため、ポリマー形避雷器は、磁器碍子形避雷器よりも部品点数が少なく、製造リードタイムが短い利点を有する。 In contrast, a polymer-type surge arrester has an outer casing made of polymer resin that encases the internal elements, including the nonlinear resistor. In a polymer-type surge arrester, the outer casing is formed by molding a polymer resin such as silicone rubber. For this reason, a polymer-type surge arrester has the advantage of having fewer parts than a porcelain insulator-type surge arrester, and a shorter manufacturing lead time.
特開昭５９－６６０９１号公報Japanese Patent Application Laid-Open No. 59-66091 特開２０１４－２２６３２号公報JP 2014-22632 A 特開２００３－７５１３号公報JP 2003-7513 A 特許３６６５４１６号Patent No. 3665416
　ポリマー形避雷器は、故障時に生ずる内部圧力を放出するために、機械的強度が小さい弱点部を外皮に形成する必要があるが、風圧などの外力に耐える機械的強度を有するように外皮を形成する必要がある。ポリマー形避雷器は、機械的強度を保持するために、外径を大きくする必要がある。このため、ポリマー形避雷器は、十分な機械的強度を得るために、製造コストが増大する場合がある。 Polymer-type lightning arresters require weak points with low mechanical strength to be formed in the outer casing in order to release the internal pressure that occurs during a failure, but the outer casing must be formed so that it has the mechanical strength to withstand external forces such as wind pressure. In order to maintain mechanical strength, polymer-type lightning arresters require a large outer diameter. For this reason, the manufacturing costs of polymer-type lightning arresters may increase in order to obtain sufficient mechanical strength.
　したがって、本発明が解決しようとする課題は、弱点部を備えていても十分な機械的強度を得ることが可能であって、製造コストの低減を実現可能な、ポリマー形避雷器を提供することである。 The problem that this invention aims to solve is to provide a polymer-type lightning arrester that has sufficient mechanical strength even if it has weak points, and that can reduce manufacturing costs.
　実施形態のポリマー形避雷器は、内部要素と外皮とを備える。内部要素は、少なくとも１つの非直線抵抗体を挟むように一対の電極が軸方向に配置された積層体を含み、積層体を構成する非直線抵抗体と一対の電極とが締結部材を用いて締結されている。外皮は、内部要素の周囲を覆うようにポリマー樹脂で形成されている。締結部材は、複数の第１絶縁テープ部と第２絶縁テープ部とを含む。複数の第１絶縁テープ部は、軸方向に延在するように積層体の周囲に貼り付けられている。第２絶縁テープ部は、複数の第１絶縁テープ部を介して積層体の周囲に貼り付けられた部分を含むように、積層体の周方向に巻かれている。ここでは、複数の第１絶縁テープ部が周方向において隙間を介して並ぶように積層体の周囲に貼り付けられている。 The polymer type lightning arrester of the embodiment includes an internal element and an outer cover. The internal element includes a laminate in which a pair of electrodes are arranged in the axial direction to sandwich at least one non-linear resistor, and the non-linear resistor and the pair of electrodes that constitute the laminate are fastened using a fastening member. The outer cover is formed of a polymer resin so as to cover the periphery of the internal element. The fastening member includes a plurality of first insulating tape portions and a second insulating tape portion. The plurality of first insulating tape portions are attached to the periphery of the laminate so as to extend in the axial direction. The second insulating tape portion is wound in the circumferential direction of the laminate so as to include a portion that is attached to the periphery of the laminate via the plurality of first insulating tape portions. Here, the plurality of first insulating tape portions are attached to the periphery of the laminate so as to be lined up with gaps in the circumferential direction.
図１は、実施形態に係るポリマー形避雷器１の全体を示す断面図である。FIG. 1 is a cross-sectional view showing an entire polymer-type lightning arrester 1 according to an embodiment of the present invention. 図２は、実施形態に係るポリマー形避雷器１において、内部要素２００の断面を示す図である。FIG. 2 is a diagram showing a cross section of an internal element 200 in the polymer-type lightning arrester 1 according to the embodiment. 図３は、実施形態に係るポリマー形避雷器１において、内部要素２００の外周面を示す図である。FIG. 3 is a diagram showing the outer peripheral surface of the internal element 200 in the polymer-type lightning arrester 1 according to the embodiment. 図４は、実施形態の変形例１に係るポリマー形避雷器１において、内部要素２００の外周面を示す図である。FIG. 4 is a diagram showing the outer peripheral surface of the internal element 200 in the polymer-type lightning arrester 1 according to the first modified embodiment. 図５は、実施形態の変形例２に係るポリマー形避雷器１において、内部要素２００の外周面を示す図である。FIG. 5 is a diagram showing the outer peripheral surface of the internal element 200 in the polymer-type lightning arrester 1 according to the second modified embodiment.
［Ａ］ポリマー形避雷器１の構成
　図１は、実施形態に係るポリマー形避雷器１の全体を示す断面図である。 [A] Configuration of Polymer-Type Surge Arrester 1 FIG. 1 is a cross-sectional view showing the entire polymer-type surge arrester 1 according to the embodiment.
　ポリマー形避雷器１は、図１に示すように、内部要素２００と外皮２０１とを備える。 As shown in FIG. 1, the polymer lightning arrester 1 comprises an internal element 200 and an outer shell 201.
［Ａ－１］内部要素２００
　ポリマー形避雷器１において、内部要素２００は、積層体１００と締結部材４０とを有する。内部要素２００において、積層体１００は、非直線抵抗体１１と電極３１とを含む。 [A-1] Internal element 200
In the polymer-type surge arrester 1, the internal element 200 includes a laminate 100 and a fastening member 40. In the internal element 200, the laminate 100 includes a non-linear resistor 11 and an electrode 31.
　非直線抵抗体１１は、複数であって、複数の非直線抵抗体１１が軸方向ＡＸ（図１では、縦方向）に積み重ねられている。ここでは、非直線抵抗体１１は、例えば、酸化亜鉛を主成分とする円板状の焼結体であって、正常な電圧が作用したときには絶縁性であり、正常な電圧よりも高い異常電圧が作用したときには抵抗値が低下して導電性になる。 There are multiple nonlinear resistors 11, and the multiple nonlinear resistors 11 are stacked in the axial direction AX (vertical direction in Figure 1). Here, the nonlinear resistors 11 are, for example, disk-shaped sintered bodies whose main component is zinc oxide, and are insulating when a normal voltage is applied, but when an abnormal voltage higher than the normal voltage is applied, the resistance value drops and the resistors become conductive.
　電極３１は、一対であって、一対の電極３１が複数の非直線抵抗体１１を挟むように軸方向ＡＸに配置されている。つまり、一対の電極３１は、複数の非直線抵抗体１１と同軸に積み重ねられている。電極３１は、円柱形状であって、金属などの導電材料で形成されている。電極３１には、雄ネジが取り付けられる雌ネジが形成されている。電極３１において、雌ネジは、非直線抵抗体１１が位置する側の面とは、反対側の面に形成されている。そして、電極３１は、軸方向ＡＸにおいて外周面の中央に位置する部分に、凹部Ｔ３１が形成されている。 The electrodes 31 are a pair, and are arranged in the axial direction AX so that the pair of electrodes 31 sandwich the multiple non-linear resistors 11. In other words, the pair of electrodes 31 are stacked coaxially with the multiple non-linear resistors 11. The electrode 31 is cylindrical and made of a conductive material such as metal. The electrode 31 is formed with a female thread to which a male screw is attached. The female thread is formed on the surface of the electrode 31 opposite to the surface on which the non-linear resistors 11 are located. The electrode 31 is also formed with a recess T31 in a portion located at the center of the outer circumferential surface in the axial direction AX.
　締結部材４０は、複数の非直線抵抗体１１の間、および、非直線抵抗体１１と電極３１との間を締結するために、積層体１００の外周面に設けられている。ここでは、締結部材４０は、一対の電極３１のうち、一端（図１では上端）に位置する電極３１の凹部Ｔ３１と、他端（図１では下端）に位置する電極３１の凹部Ｔ３１との間に渡って設けられている。図示を省略しているが、一対の電極３１のそれぞれに形成された凹部Ｔ３１では、締結部材４０を覆うように、固定テープが巻かれており、これにより、締結部材４０が積層体１００に固定されている。本実施形態の締結部材４０の詳細については、後述する。 The fastening member 40 is provided on the outer peripheral surface of the laminate 100 to fasten the nonlinear resistors 11 between each other and between the nonlinear resistors 11 and the electrodes 31. Here, the fastening member 40 is provided across the recess T31 of the electrode 31 located at one end (the upper end in FIG. 1) of the pair of electrodes 31 and the recess T31 of the electrode 31 located at the other end (the lower end in FIG. 1). Although not shown, a fixing tape is wound around the recess T31 formed in each of the pair of electrodes 31 so as to cover the fastening member 40, thereby fixing the fastening member 40 to the laminate 100. Details of the fastening member 40 in this embodiment will be described later.
［Ａ－２］外皮２０１
　ポリマー形避雷器１において、外皮２０１は、内部要素２００の周囲を直接覆うようにポリマー樹脂で形成されている。外皮２０１は、内部要素２００を内部に収容する絶縁容器として機能し、シリコーンゴムなどの絶縁性のポリマー樹脂からなる。 [A-2] Outer skin 201
In the polymer-type lightning arrester 1, the outer cover 201 is formed of a polymer resin so as to directly cover the periphery of the internal element 200. The outer cover 201 functions as an insulating container that houses the internal element 200 therein, and is made of an insulating polymer resin such as silicone rubber.
［Ｂ］締結部材４０の詳細構成
　ポリマー形避雷器１（図１参照）を構成する締結部材４０の詳細構成に関して、図２および図３を用いて説明する。 [B] Detailed Configuration of Fastening Member 40 The detailed configuration of fastening member 40 constituting polymer-type lightning arrester 1 (see FIG. 1) will be described with reference to FIG. 2 and FIG. 3. FIG.
　図２は、実施形態に係るポリマー形避雷器１において、内部要素２００の断面を示す図である。図２では、内部要素２００において軸方向ＡＸ（図１では、縦方向）が直交する面のうち、図１のＡ－Ａ部分を示している。 Figure 2 is a diagram showing a cross section of the internal element 200 in the polymer-type lightning arrester 1 according to the embodiment. Figure 2 shows the A-A portion in Figure 1, of the plane perpendicular to the axial direction AX (the vertical direction in Figure 1) in the internal element 200.
　図３は、実施形態に係るポリマー形避雷器１において、内部要素２００の外周面を示す図である。図３では、縦方向は、内部要素２００の軸方向ＡＸに相当し、横方向は、内部要素２００の周方向ＣＲ（図２参照）に相当する。図３では、図１において破線で囲ったＢ部分であって、内部要素２００において電極３１と非直線抵抗体１１とが積層された部分の外周面を示している。 Figure 3 is a diagram showing the outer peripheral surface of the internal element 200 in the polymer-type lightning arrester 1 according to the embodiment. In Figure 3, the vertical direction corresponds to the axial direction AX of the internal element 200, and the horizontal direction corresponds to the circumferential direction CR (see Figure 2) of the internal element 200. Figure 3 shows the outer peripheral surface of part B surrounded by a dashed line in Figure 1, where the electrode 31 and the non-linear resistor 11 are laminated in the internal element 200.
　図２および図３に示すように、本実施形態の締結部材４０は、第１絶縁テープ部４１と第２絶縁テープ部４２とを含む。図示を省略しているが、第１絶縁テープ部４１および第２絶縁テープ部４２は、例えば、樹脂フィルムの基材の一方の面に接着層が設けられた絶縁テープを用いて構成されている。なお、図３は、内部要素２００の外周面を示し、内部要素２００の断面を示していないが、非直線抵抗体１１と電極３１と第１絶縁テープ部４１とを識別するためにハッチングを付している。そして、図３では、図示の都合により、第２絶縁テープ部４２に関して、端部を太い破線で示している。 2 and 3, the fastening member 40 of this embodiment includes a first insulating tape portion 41 and a second insulating tape portion 42. Although not shown, the first insulating tape portion 41 and the second insulating tape portion 42 are formed, for example, using insulating tape having an adhesive layer provided on one side of a resin film substrate. Note that FIG. 3 shows the outer peripheral surface of the internal element 200, and does not show a cross section of the internal element 200, but hatching is applied to distinguish the nonlinear resistor 11, the electrode 31, and the first insulating tape portion 41. In FIG. 3, for convenience of illustration, the end portion of the second insulating tape portion 42 is shown by a thick dashed line.
　締結部材４０を構成する第１絶縁テープ部４１および第２絶縁テープ部４２について、順次、説明する。 The first insulating tape portion 41 and the second insulating tape portion 42 that make up the fastening member 40 will be described in turn.
［Ｂ－１］第１絶縁テープ部４１
　第１絶縁テープ部４１は、図２および図３に示すように、軸方向ＡＸに延在するように、複数の非直線抵抗体１１と一対の電極３１とが積層された積層体１００（図１参照）の周囲に貼り付けられている。図示を省略しているが、第１絶縁テープ部４１は、例えば、樹脂フィルムの基材の一方の面に接着層が設けられた絶縁テープを用いて構成されている。 [B-1] First insulating tape portion 41
2 and 3, the first insulating tape portion 41 is attached to the periphery of the laminate 100 (see FIG. 1) in which a plurality of non-linear resistors 11 and pairs of electrodes 31 are laminated so as to extend in the axial direction AX. Although not shown in the drawings, the first insulating tape portion 41 is formed, for example, using an insulating tape having an adhesive layer provided on one surface of a resin film base material.
　ここでは、第１絶縁テープ部４１は、複数であって、複数の第１絶縁テープ部４１のそれぞれが周方向ＣＲにおいて隙間Ｇ１が介在して並ぶように貼り付けられている。本実施形態では、図３に示すように、幅ＨＣ０の第１絶縁テープ部４１が、例えば、３本であって、３本の第１絶縁テープ部４１が、幅ＨＣ１の隙間Ｇ１を介して周方向ＣＲに等しいピッチで並んでいる。 Here, there are multiple first insulating tape portions 41, and each of the multiple first insulating tape portions 41 is attached so as to be lined up in the circumferential direction CR with a gap G1 between them. In this embodiment, as shown in FIG. 3, there are, for example, three first insulating tape portions 41 with a width HC0, and the three first insulating tape portions 41 are lined up at an equal pitch in the circumferential direction CR with a gap G1 of width HC1 between them.
［Ｂ－２］第２絶縁テープ部４２
　第２絶縁テープ部４２は、図２および図３に示すように、複数の第１絶縁テープ部４１を介して、積層体１００の周囲に貼り付けられた部分を含むように、積層体１００の周方向ＣＲに巻かれている。図示を省略しているが、第２絶縁テープ部４２は、例えば、第１絶縁テープ部４１と同じ材料で形成された絶縁テープを用いて構成されている。 [B-2] Second insulating tape portion 42
2 and 3 , the second insulating tape portion 42 is wound in the circumferential direction CR of the laminate 100 so as to include a portion attached to the periphery of the laminate 100 via a plurality of first insulating tape portions 41. Although not shown in the drawings, the second insulating tape portion 42 is configured using, for example, an insulating tape made of the same material as the first insulating tape portion 41.
　ここでは、図３に示すように、幅ＨＡ０の第２絶縁テープ部４２が積層体１００の外周面においてスパイラル状に等しいピッチで巻かれて貼り付けられている。幅ＨＡ０の第２絶縁テープ部４２の幅ＨＡ０は、第１絶縁テープ部４１の幅ＨＣ０と同じでもよく、異なっていてもよい。 Here, as shown in FIG. 3, the second insulating tape portion 42 having a width HA0 is wound in a spiral shape at an equal pitch and attached to the outer peripheral surface of the laminate 100. The width HA0 of the second insulating tape portion 42 having a width HA0 may be the same as the width HC0 of the first insulating tape portion 41, or may be different.
　本実施形態では、第２絶縁テープ部４２が積層体１００の外周面において軸方向ＡＸに面一で並ぶように、第２絶縁テープ部４２がスパイラル状に巻かれている。つまり、本実施形態では、先に巻かれた第２絶縁テープ部４２のうち一方の側端（図３では下側の側端）が、次に巻かれた第２絶縁テープ部４２の他方の側端（図３では上側の側端）に接し、両者の間に隙間が介在していない。また、先に巻かれた第２絶縁テープ部４２のうち一方の側端（図３では下側の側端）と、次に巻かれた第２絶縁テープ部４２の他方の側端（図３では上側の側端）とが軸方向ＡＸにおいて重複する部分がない。 In this embodiment, the second insulating tape portion 42 is spirally wound so that the second insulating tape portion 42 is aligned flush in the axial direction AX on the outer circumferential surface of the laminate 100. That is, in this embodiment, one side end (the lower side end in FIG. 3) of the first wound second insulating tape portion 42 contacts the other side end (the upper side end in FIG. 3) of the second wound second insulating tape portion 42, with no gap between them. Also, there is no overlap in the axial direction AX between one side end (the lower side end in FIG. 3) of the first wound second insulating tape portion 42 and the other side end (the upper side end in FIG. 3) of the second wound second insulating tape portion 42.
［Ｃ］ポリマー形避雷器１の製造方法
　上記のポリマー形避雷器１（図１参照）を製造する方法に関して説明する。 [C] Manufacturing Method of Polymer-Type Surge Arrester 1 A method of manufacturing the above-mentioned polymer-type surge arrester 1 (see FIG. 1) will be described.
　上記のポリマー形避雷器１を製造する際には、まず、内部要素２００を作製する。内部要素２００の作製では、複数の非直線抵抗体１１と一対の電極３１とを積層することで積層体１００を作製する。 When manufacturing the above-mentioned polymer-type lightning arrester 1, the internal element 200 is first produced. In producing the internal element 200, a laminate 100 is produced by stacking a plurality of nonlinear resistors 11 and a pair of electrodes 31.
　そして、第１絶縁テープ部４１および第２絶縁テープ部４２を含む締結部材４０を積層体１００の外周面に設けることで、複数の非直線抵抗体１１と一対の電極３１との間を締結状態にする。 Then, a fastening member 40 including a first insulating tape portion 41 and a second insulating tape portion 42 is provided on the outer peripheral surface of the laminate 100, thereby fastening the multiple nonlinear resistors 11 and the pair of electrodes 31 together.
　本実施形態では、上述したように、積層体１００の周囲において複数の第１絶縁テープ部４１が軸方向ＡＸに延在し、複数の第１絶縁テープ部４１が隙間Ｇ１を介して周方向ＣＲに並ぶように、複数の第１絶縁テープ部４１を積層体１００の外周面に貼り付ける。そして、上述したように、第２絶縁テープ部４２が複数の第１絶縁テープ部４１を介して積層体１００の周囲に貼り付けられた部分を含むように、第２絶縁テープ部４２を積層体１００の周方向ＣＲに巻く（図２，図３参照）。 In this embodiment, as described above, the multiple first insulating tape portions 41 are attached to the outer peripheral surface of the laminate 100 so that the multiple first insulating tape portions 41 extend in the axial direction AX around the laminate 100 and are aligned in the circumferential direction CR with gaps G1 between them. Then, as described above, the second insulating tape portion 42 is wound in the circumferential direction CR of the laminate 100 so that the second insulating tape portion 42 includes a portion attached around the laminate 100 with the multiple first insulating tape portions 41 between them (see Figures 2 and 3).
　そして、一対の電極３１のそれぞれに形成された凹部Ｔ３１（図１参照）において、第１絶縁テープ部４１および第２絶縁テープ部４２を含む締結部材４０を覆うように、固定テープ（図示省略）を巻く。これにより、締結部材４０が積層体１００に固定される。 Then, a fixing tape (not shown) is wrapped around the recesses T31 (see FIG. 1) formed in each of the pair of electrodes 31 so as to cover the fastening member 40 including the first insulating tape portion 41 and the second insulating tape portion 42. This fixes the fastening member 40 to the laminate 100.
　その後、外皮２０１が内部要素２００の周囲を直接覆うように、外皮２０１の作製を行う。外皮２０１の作製は、シリコーンゴムなどの絶縁性のポリマー樹脂をモールドすることによって実行される。 Then, the outer skin 201 is created so that the outer skin 201 directly surrounds the inner element 200. The outer skin 201 is created by molding an insulating polymer resin such as silicone rubber.
　上記のように各部を設けることで、ポリマー形避雷器１を完成させる。 By providing each part as described above, the polymer lightning arrester 1 is completed.
［Ｄ］まとめ
　以上のように、本実施形態のポリマー形避雷器１において、締結部材４０は、複数の第１絶縁テープ部４１と第２絶縁テープ部４２とを含む。複数の第１絶縁テープ部４１のそれぞれは、軸方向ＡＸに延在するように積層体１００の周囲に貼り付けられており、かつ、周方向ＣＲにおいて隙間Ｇ１が介在している。第２絶縁テープ部４２は、複数の第１絶縁テープ部４１を介して、積層体１００の周囲に貼り付けられた部分を含むように、積層体１００の周方向ＣＲへスパイラル状に巻かれている。 [D] Summary As described above, in the polymer-type lightning arrester 1 of this embodiment, the fastening member 40 includes a plurality of first insulating tape portions 41 and a second insulating tape portion 42. Each of the plurality of first insulating tape portions 41 is attached to the periphery of the laminate 100 so as to extend in the axial direction AX, and a gap G1 is interposed in the circumferential direction CR. The second insulating tape portion 42 is spirally wound in the circumferential direction CR of the laminate 100, via the plurality of first insulating tape portions 41, so as to include the portion attached to the periphery of the laminate 100.
　本実施形態のポリマー形避雷器１を構成する締結部材４０において、複数の第１絶縁テープ部４１の間に介在する隙間Ｇ１が位置する部分は、第１絶縁テープ部４１と第２絶縁テープ部４２とが積層された部分よりも、機械的強度が小さい。このため、締結部材４０において隙間Ｇ１が位置する部分は、ポリマー形避雷器１の弱点部として機能するので、ポリマー形避雷器１が故障した時に生ずる内部圧力を隙間Ｇ１から効果的に放出可能である。また、本実施形態の締結部材４０においては、複数の第１絶縁テープ部４１の他に、第２絶縁テープ部４２が複数の第１絶縁テープ部４１を介して積層体１００の周囲に巻かれているので、本実施形態のポリマー形避雷器１は、風圧などの外力に耐える十分な機械的強度を容易に得ることができる。 In the fastening member 40 constituting the polymer-type lightning arrester 1 of this embodiment, the portion where the gap G1 between the multiple first insulating tape portions 41 is located has a smaller mechanical strength than the portion where the first insulating tape portion 41 and the second insulating tape portion 42 are laminated. Therefore, the portion where the gap G1 is located in the fastening member 40 functions as a weak point of the polymer-type lightning arrester 1, so that the internal pressure generated when the polymer-type lightning arrester 1 breaks down can be effectively released from the gap G1. In addition, in the fastening member 40 of this embodiment, in addition to the multiple first insulating tape portions 41, the second insulating tape portion 42 is wrapped around the laminate 100 via the multiple first insulating tape portions 41, so that the polymer-type lightning arrester 1 of this embodiment can easily obtain sufficient mechanical strength to withstand external forces such as wind pressure.
　したがって、本実施形態のポリマー形避雷器は、弱点部を備えていても十分な機械的強度を得ることが可能であって、製造コストの低減を実現可能である。 Therefore, the polymer lightning arrester of this embodiment is able to obtain sufficient mechanical strength even if it has weak points, and it is possible to reduce manufacturing costs.
［Ｄ］変形例
　上記実施形態の変形例について説明する。 [D] Modifications Modifications of the above embodiment will now be described.
［Ｄ－１］変形例１
　上記の実施形態では、第２絶縁テープ部４２がスパイラル状に積層体１００の外周面に巻かれる場合について示したが、これに限らない。 [D-1] Modification 1
In the above embodiment, the second insulating tape portion 42 is wound in a spiral shape around the outer circumferential surface of the laminate 100, but the present invention is not limited to this.
　図４は、実施形態の変形例１に係るポリマー形避雷器１において、内部要素２００の外周面を示す図である。図４では、図３と同様に、図１において破線で囲ったＢ部分を示している。 FIG. 4 is a diagram showing the outer surface of the internal element 200 in the polymer-type lightning arrester 1 according to the first modified embodiment. As in FIG. 3, FIG. 4 shows part B surrounded by a dashed line in FIG. 1.
　図４に示すように、第２絶縁テープ部４２の延在方向が積層体１００の周方向ＣＲに沿うように、第２絶縁テープ部４２を積層体１００の外周面に巻いてもよい。この場合であっても、上記実施形態と同様な効果を奏することができる。 As shown in FIG. 4, the second insulating tape portion 42 may be wrapped around the outer circumferential surface of the laminate 100 so that the extension direction of the second insulating tape portion 42 is aligned with the circumferential direction CR of the laminate 100. Even in this case, the same effect as in the above embodiment can be achieved.
［Ｄ－２］変形例２
　図５は、実施形態の変形例２に係るポリマー形避雷器１において、内部要素２００の外周面を示す図である。図５では、図４と同様に、図１において破線で囲ったＢ部分を示している。 [D-2] Modification 2
Fig. 5 is a diagram showing an outer peripheral surface of the internal element 200 in the polymer-type lightning arrester 1 according to the modified example 2 of the embodiment. Fig. 5 shows the part B surrounded by the dashed line in Fig. 1, similar to Fig. 4.
　図５に示すように、積層体１００の軸方向ＡＸに並ぶ第２絶縁テープ部４２の間に、幅ＨＡ１の隙間Ｇ２が介在してもよい。図示を省略しているが、上記実施形態（図３参照）のように、第２絶縁テープ部４２がスパイラル状に積層体１００の外周面に巻かれる場合においても、軸方向ＡＸに並ぶ第２絶縁テープ部４２の間に、幅ＨＡ１の隙間Ｇ２が介在してもよい。この場合であっても、上記実施形態と同様な効果を奏することができる。なお、隙間Ｇ２である幅ＨＡ１は、例えば、第１絶縁テープ４１への拘束力を考慮すると、５ｍｍ以下である。 As shown in FIG. 5, a gap G2 of width HA1 may be interposed between the second insulating tape portions 42 aligned in the axial direction AX of the laminate 100. Although not shown, even when the second insulating tape portion 42 is wound spirally around the outer circumferential surface of the laminate 100 as in the above embodiment (see FIG. 3), a gap G2 of width HA1 may be interposed between the second insulating tape portions 42 aligned in the axial direction AX. Even in this case, the same effect as in the above embodiment can be achieved. The width HA1, which is the gap G2, is, for example, 5 mm or less, taking into account the restraining force on the first insulating tape 41.
　この他に、軸方向ＡＸに並ぶ第２絶縁テープ部４２の間において、一部が重複する部分を含むように、第２絶縁テープ部４２が巻かれてもよい。 In addition, the second insulating tape portions 42 may be wound so as to include overlapping portions between the second insulating tape portions 42 aligned in the axial direction AX.
［Ｄ－３］その他の変形例
　上記の実施形態では、締結部材４０において、第１絶縁テープ部４１と第２絶縁テープ部４２との両者が、同じ材料で形成された絶縁テープを用いて構成されている場合について説明した。つまり、上記の実施形態では、第１絶縁テープ部４１と第２絶縁テープ部４２との両者の引張強度が同じ場合について説明した。しかし、これに限らない。第１絶縁テープ部４１の引張強度が第２絶縁テープ部４２の引張強度よりも高くなるように締結部材４０が構成されていることが好ましい。例えば、第１絶縁テープ部４１と第２絶縁テープ部４２との両者に関して、同じ材料で形成された絶縁テープを用いて構成する場合には、第１絶縁テープ部４１を構成する絶縁テープの積層数が、第２絶縁テープ部４２を構成する絶縁テープの積層数よりも多くすることが好ましい。その他、第１絶縁テープ部４１の引張強度が第２絶縁テープ部４２の引張強度よりも高くなるように、第１絶縁テープ部４１と第２絶縁テープ部４２とを互いに異なる材料で形成された絶縁テープを用いて構成してもよい。これにより、弱点部を備えていても、更に十分な機械的強度を得ることができる。 [D-3] Other Modifications In the above embodiment, the fastening member 40 has been described with respect to a case where both the first insulating tape portion 41 and the second insulating tape portion 42 are configured using insulating tapes made of the same material. That is, in the above embodiment, the case where both the first insulating tape portion 41 and the second insulating tape portion 42 have the same tensile strength has been described. However, this is not limited to this. It is preferable that the fastening member 40 is configured so that the tensile strength of the first insulating tape portion 41 is higher than the tensile strength of the second insulating tape portion 42. For example, when both the first insulating tape portion 41 and the second insulating tape portion 42 are configured using insulating tapes made of the same material, it is preferable that the number of laminations of the insulating tapes constituting the first insulating tape portion 41 is greater than the number of laminations of the insulating tapes constituting the second insulating tape portion 42. In addition, the first insulating tape portion 41 and the second insulating tape portion 42 may be configured with insulating tapes made of different materials so that the tensile strength of the first insulating tape portion 41 is higher than the tensile strength of the second insulating tape portion 42. This makes it possible to obtain sufficient mechanical strength even if weak points are present.
　また、上記の実施形態では、周方向ＣＲに並んで設けられる第１絶縁テープ部４１の本数が３本である場合について説明したが、これに限らない。周方向ＣＲに並んで設けられる第１絶縁テープ部４１の本数は、複数であればよいが、積層体１００の組立性を考慮すると３本以上、５本以下であることが好ましい。 In addition, in the above embodiment, the number of first insulating tape portions 41 arranged side by side in the circumferential direction CR is described as three, but this is not limited to this. The number of first insulating tape portions 41 arranged side by side in the circumferential direction CR may be more than one, but considering the assembly of the laminate 100, it is preferable that the number be three or more and five or less.
　上記の実施形態では、周方向ＣＲに並ぶ第１絶縁テープ部４１の間に介在する隙間Ｇ１の幅ＨＣ１について特に言及していないが、周方向ＣＲに並ぶ第１絶縁テープ部４１の間に介在する隙間Ｇ１の幅ＨＣ１は、内部圧力の放出と機械的強度の観点を考慮し、積層体１００の外周ＨＣに対して、５％以上、１０％以下であること（５％≦１００＊ＨＣ１／ＨＣ≦１０％）が好ましい。 In the above embodiment, no particular reference is made to the width HC1 of the gap G1 between the first insulating tape portions 41 aligned in the circumferential direction CR. However, taking into consideration the release of internal pressure and mechanical strength, it is preferable that the width HC1 of the gap G1 between the first insulating tape portions 41 aligned in the circumferential direction CR is 5% or more and 10% or less of the outer periphery HC of the laminate 100 (5%≦100*HC1/HC≦10%).
　上記の実施形態では、非直線抵抗体１１を複数積層する場合について説明したが、これに限定されない。たとえば、非直線抵抗体１１が１枚の場合に、上記のように各部を構成してもよい。 In the above embodiment, a case where multiple non-linear resistors 11 are stacked is described, but this is not limited to this. For example, when there is a single non-linear resistor 11, each part may be configured as described above.
＜その他＞
　本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 ＜Other＞
Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims.
１：ポリマー形避雷器、１１：非直線抵抗体、３１：電極、４０：締結部材、４１：第１絶縁テープ部、４２：第２絶縁テープ部、１００：積層体、２００：内部要素、２０１：外皮、ＡＸ：軸方向、ＣＲ：周方向、Ｇ１：隙間、Ｇ２：隙間、Ｔ３１：凹部 1: Polymer type lightning arrester, 11: Non-linear resistor, 31: Electrode, 40: Fastening member, 41: First insulating tape part, 42: Second insulating tape part, 100: Laminate, 200: Internal element, 201: Outer cover, AX: Axial direction, CR: Circumferential direction, G1: Gap, G2: Gap, T31: Recess

Claims (3)

  1. 　少なくとも１つの非直線抵抗体を挟むように一対の電極が軸方向に配置された積層体を含み、前記積層体を構成する前記非直線抵抗体と前記一対の電極とが締結部材を用いて締結されている内部要素と、
    　前記内部要素の周囲を覆うようにポリマー樹脂で形成されている外皮と
    　を備える、
    　ポリマー形避雷器であって、
    　前記締結部材は、
    　前記軸方向に延在するように前記積層体の周囲に貼り付けられている複数の第１絶縁テープ部と、
    　前記複数の第１絶縁テープ部を介して前記積層体の周囲に貼り付けられた部分を含むように、前記積層体の周方向に巻かれている第２絶縁テープ部と
    　を含み、
    　前記複数の第１絶縁テープ部が前記周方向において隙間を介して並ぶように前記積層体の周囲に貼り付けられている、
    　ポリマー形避雷器。     an internal element including a stack in which a pair of electrodes are axially disposed so as to sandwich at least one non-linear resistor, the non-linear resistor constituting the stack and the pair of electrodes being fastened together using a fastening member;
    and an outer skin formed of a polymer resin so as to surround the inner element.
    A polymer type lightning arrester,
    The fastening member is
    a plurality of first insulating tape portions attached to a periphery of the laminate so as to extend in the axial direction;
    a second insulating tape portion wound in a circumferential direction of the laminate so as to include a portion attached to the periphery of the laminate via the plurality of first insulating tape portions,
    the plurality of first insulating tape portions are attached to the periphery of the laminate so as to be aligned with gaps in the circumferential direction;
    Polymer type lightning arrester.
  2. 　前記第２絶縁テープ部は、スパイラル状に巻かれている、
    　請求項１に記載のポリマー形避雷器。     The second insulating tape portion is wound in a spiral shape.
    2. The polymer type lightning arrester according to claim 1.
  3. 　前記複数の第１絶縁テープ部のそれぞれの引張強度は、前記第２絶縁テープ部の引張強度よりも高い、
    　請求項１または２に記載のポリマー形避雷器。     The tensile strength of each of the plurality of first insulating tape portions is higher than the tensile strength of the second insulating tape portion.
    3. A polymer type lightning arrester according to claim 1 or 2.
PCT/JP2022/046439 2022-12-16 2022-12-16 Polymer-type lightning arrestor WO2024127642A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/046439 WO2024127642A1 (en) 2022-12-16 2022-12-16 Polymer-type lightning arrestor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/046439 WO2024127642A1 (en) 2022-12-16 2022-12-16 Polymer-type lightning arrestor

Publications (1)

Publication Number Publication Date
WO2024127642A1 true WO2024127642A1 (en) 2024-06-20

Family

ID=91484672

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/046439 WO2024127642A1 (en) 2022-12-16 2022-12-16 Polymer-type lightning arrestor

Country Status (1)

Country Link
WO (1) WO2024127642A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07312131A (en) * 1994-03-24 1995-11-28 Ngk Insulators Ltd Arrester and arc horn
JP2000021609A (en) * 1998-06-29 2000-01-21 Toshiba Corp Lightning arrester
JP2000512074A (en) * 1996-03-01 2000-09-12 クーパー インダストリーズ，インコーポレイティド Self-compressible surge arrester module and method of manufacturing the same
JP2001015304A (en) * 1999-06-30 2001-01-19 Toshiba Corp Polymer-type arrester
JP2006525670A (en) * 2003-04-30 2006-11-09 アーべーべー・テヒノロギー・リミテッド Surge arrester

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07312131A (en) * 1994-03-24 1995-11-28 Ngk Insulators Ltd Arrester and arc horn
JP2000512074A (en) * 1996-03-01 2000-09-12 クーパー インダストリーズ，インコーポレイティド Self-compressible surge arrester module and method of manufacturing the same
JP2000021609A (en) * 1998-06-29 2000-01-21 Toshiba Corp Lightning arrester
JP2001015304A (en) * 1999-06-30 2001-01-19 Toshiba Corp Polymer-type arrester
JP2006525670A (en) * 2003-04-30 2006-11-09 アーべーべー・テヒノロギー・リミテッド Surge arrester

Similar Documents

Publication Publication Date Title
US5608597A (en) Surge arrester
JP2007019235A (en) Dry capacitor
CA2560027A1 (en) Ceramic polymer capacitor
WO2024127642A1 (en) Polymer-type lightning arrestor
JP2010225502A (en) Polymer lightening arrestor
JP2013247144A (en) Capacitor unit and gas insulation breaker
JP5546967B2 (en) Piezoelectric multilayer element
JP2012033676A (en) Polymer arrester
JP2000021609A (en) Lightning arrester
KR20180064778A (en) Electrode assembly
JP5274416B2 (en) Insulated operation rod
WO2021024565A1 (en) Film capacitor
EP1730750B1 (en) Station class surge arrester
JP2013239651A (en) Arrester
JP6454511B2 (en) Lightning arrestor
JP2013247160A (en) Arrestor
JP2003297609A (en) Arrester
US11380464B2 (en) Surge arrester and associated manufacturing method
JP2009054400A (en) Capacitor unit and sealed switching device
JPH0520947A (en) Polymer insulator type lightning arrester
JP2012099616A (en) Arrester and manufacturing method thereof
JP2591068B2 (en) Surge arrester
JP2003297607A (en) Arrester
JP2002075709A (en) Arrester
JP6519116B2 (en) Ignition coil for internal combustion engine