JP5772386B2 - Shield member and shield conductor - Google Patents

Shield member and shield conductor Download PDF

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JP5772386B2
JP5772386B2 JP2011181534A JP2011181534A JP5772386B2 JP 5772386 B2 JP5772386 B2 JP 5772386B2 JP 2011181534 A JP2011181534 A JP 2011181534A JP 2011181534 A JP2011181534 A JP 2011181534A JP 5772386 B2 JP5772386 B2 JP 5772386B2
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cylindrical portion
pair
shield member
walls
curved
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JP2013045557A (en
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昭弘 永渕
昭弘 永渕
梨恵 木村
梨恵 木村
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Description

本発明は、シールド部材及びシールド導電体に関する。   The present invention relates to a shield member and a shield conductor.

従来、電線の周囲をシールド部材で包囲してなるシールド導電体として特許文献１に記載のものが知られている。このシールド導電体の端部にはコネクタが取り付けられている。シールド導電体は、電線と、電線が挿通される筒部を有するシールド部材と、を備える。シールド部材は、電線が挿通される金属製のブラケット（第１シールド部材）と、電線が挿通されると共に端末部が筒部に外嵌される編組線（第２シールド部材）と、ブラケットの筒部に外嵌された編組線を外周側からかしめ付けて固定するカシメリングと、を備える。編組線が筒部の外周に外嵌された状態で、カシメリングで外側からかしめ付けられることにより、ブラケットと編組線とが電気的に接続されている。これにより、ブラケット及び編組線に挿通された電線が電磁的にシールドされる。   Conventionally, the thing of patent document 1 is known as a shield conductor formed by surrounding the circumference of an electric wire with a shield member. A connector is attached to the end of the shield conductor. The shield conductor includes an electric wire and a shield member having a cylindrical portion through which the electric wire is inserted. The shield member includes a metal bracket (first shield member) through which the electric wire is inserted, a braided wire (second shield member) through which the electric wire is inserted and the terminal portion is externally fitted to the cylindrical portion, and a bracket cylinder And caulking for fixing the braided wire externally fitted to the portion by caulking from the outer peripheral side. The bracket and the braided wire are electrically connected to each other by caulking from the outside with caulking while the braided wire is fitted on the outer periphery of the cylindrical portion. Thereby, the electric wire inserted in the bracket and the braided wire is electromagnetically shielded.

特開２００５−２７６５７０号公報JP 2005-276570 A

シールド導電体のシールド性能を向上させるためには、筒部と編組線とを強固に接続することが考えられた。このためには、カシメリングを筒部にかしめ付けた時に、筒部が縮径方向に撓み変形してしまうことを抑制することが望ましいと考えられた。   In order to improve the shielding performance of the shield conductor, it has been considered to firmly connect the tubular portion and the braided wire. For this purpose, it has been considered desirable to suppress the cylindrical portion from being bent and deformed in the diameter reducing direction when the caulking ring is caulked to the cylindrical portion.

そこで、図１３に示すように、筒部１３５のうち編組線（図示せず）が外嵌された端部と反対側の端部に、筒部１３５の径方向外方に突出する突出縁部１３６を、筒部１３５の全周に亘って形成することが考えられた。これにより、筒部１３５にカシメリング１１８をかしめ付けることにより、カシメリング１１８から筒部１３５に対して矢線Ｘで示す方向に力が加えられても、筒部１３５に形成された突出縁部１３６によってこの力が受けられ、筒部１３５が径方向内方に撓み変形することが抑制されると考えられた。   Therefore, as shown in FIG. 13, a protruding edge portion protruding radially outward of the cylindrical portion 135 at the end portion on the opposite side to the end portion of the cylindrical portion 135 on which the braided wire (not shown) is fitted. It has been considered that 136 is formed over the entire circumference of the cylindrical portion 135. As a result, the caulking ring 118 is caulked to the cylindrical portion 135, so that even if a force is applied from the caulking ring 118 to the cylindrical portion 135 in the direction indicated by the arrow X, the protruding edge formed on the cylindrical portion 135 is formed. It is considered that this force is received by 136 and the cylindrical portion 135 is restrained from being bent and deformed radially inward.

しかし、突出縁部１３６を筒部１３５の全周に亘って形成しても、依然として、筒部１３５のうち長径方向の略中央付近において、筒部１３５がその径方向内方（矢線Ｙで示す方向）に撓み変形し勝ちで、その結果、編組線を筒部１３５とカシメリング１１８との間に十分に締め付けることができなかった。   However, even if the protruding edge 136 is formed over the entire circumference of the cylindrical portion 135, the cylindrical portion 135 is still inwardly in the radial direction (in the direction indicated by the arrow Y) in the vicinity of the approximate center in the major axis direction of the cylindrical portion 135. As a result, the braided wire could not be sufficiently tightened between the cylindrical portion 135 and the caulking ring 118.

その理由は、次のようであると推測される。筒部１３５に編組線をカシメリング１１８でかしめ付けると、筒部１３５には縮径されるような力が加わり、その力は筒部１３５に連なる突出縁部１３６によっても受けられる。筒部１３５の小径側の両端部（湾曲壁部分）に加わる強い縮径力は、突出縁部１３６が筒部１３５の全周にわたって連続しているから、筒部１３５のうち小径側の両端部以外の部分（湾曲壁間に位置する一対の対向壁）にも突出縁部１３６から押さえ込まれるような力を受け、結局、筒部１３５の対向壁にも強い力が加えられてしまい、筒部１３５は、その径方向内方（矢線Ｙで示す方向）に撓み変形してしまうのである。   The reason is estimated as follows. When the braided wire is caulked with the caulking ring 118 to the tubular portion 135, a force that reduces the diameter is applied to the tubular portion 135, and the force is also received by the protruding edge 136 that continues to the tubular portion 135. The strong diameter-reducing force applied to both end portions (curved wall portions) on the small-diameter side of the cylindrical portion 135 is such that the projecting edge 136 is continuous over the entire circumference of the cylindrical portion 135. Other parts (a pair of opposing walls located between the curved walls) are also subjected to a force that is pressed from the protruding edge 136, and eventually a strong force is also applied to the opposing wall of the cylindrical part 135, and the cylindrical part 135 is bent and deformed inward in the radial direction (the direction indicated by the arrow Y).

本発明は上記のような事情に基づいて完成されたものであって、第１シールド部材と第２シールド部材との接続不良が抑制されたシールド部材及びシールド導電体を提供することを目的とする。   This invention is completed based on the above situations, Comprising: It aims at providing the shield member and shield conductor by which the connection failure of the 1st shield member and the 2nd shield member was suppressed. .

本発明は、互いに対向する一対の対向壁と前記一対の対向壁間を連ねる湾曲した一対の湾曲壁とからなる扁平な形状の筒部に電線が挿通される金属製の第１シールド部材と、前記電線が挿通される編組線からなり端末部が前記筒部の一方の端部を覆った状態で外嵌される第２シールド部材と、前記筒部に外嵌された前記編組線を外周側からかしめ付けて固定するカシメリングとを備えたシールド部材であって、前記筒部の他方の端部のうち、少なくとも前記一対の湾曲壁には前記湾曲壁の肉厚方向の外方に突出する突出縁部が形成されており、前記一対の対向壁には、前記突出縁部が形成されないことにより前記筒部の径方向外方に撓み変形可能な可撓領域が形成されている。   The present invention is a metal first shield member into which an electric wire is inserted into a flat cylindrical portion composed of a pair of opposed walls facing each other and a pair of curved walls connected between the pair of opposed walls, A second shield member that is formed of a braided wire through which the electric wire is inserted and is fitted outside in a state where the terminal portion covers one end of the cylindrical portion; and the braided wire that is externally fitted into the cylindrical portion A shield member including a caulking ring that is caulked and fixed, and at least the pair of curved walls of the other end portion of the cylindrical portion protrudes outward in the thickness direction of the curved walls. Protruding edges are formed, and the pair of opposing walls are formed with flexible regions that can be bent and deformed outward in the radial direction of the cylindrical portion by not forming the protruding edges.

また、本発明は、電線と、互いに対向する一対の対向壁と前記一対の対向壁間を連結する湾曲した一対の湾曲壁とからなる扁平な形状の筒部に前記電線が挿通される金属製の第１シールド部材と、前記電線が挿通される編組線からなり端末部が前記筒部の一方の端部側から外嵌される第２シールド部材と、前記筒部に外嵌された前記編組線を外周側からかしめ付けて固定するカシメリングとを備えたシールド導電体であって、前記筒部の他方の端部のうち、少なくとも前記一対の湾曲壁には前記湾曲壁の肉厚方向の外方に突出する突出縁部が形成されており、前記一対の対向壁には、前記突出縁部が形成されないことにより前記筒部の径方向外方に撓み変形可能な可撓領域が形成されている。   Further, the present invention is a metal product in which the electric wire is inserted into a flat cylindrical portion including an electric wire, a pair of opposing walls facing each other, and a pair of curved walls connecting the pair of opposing walls. A first shield member, a second shield member comprising a braided wire through which the electric wire is inserted, and a terminal portion fitted from one end side of the tube portion, and the braid fitted to the tube portion. And a caulking ring for caulking and fixing the wire from the outer peripheral side, and at least the pair of curved walls of the other end portion of the cylindrical portion has a thickness direction of the curved walls. Protruding edge portions projecting outward are formed, and the pair of opposing walls are formed with a flexible region that can be bent and deformed radially outward of the cylindrical portion by not forming the projecting edge portions. ing.

本発明によれば、可撓領域が筒部の径方向外方に撓み変形することにより、カシメリングと可撓領域との間において第２シールド部材を確実に挟持することができる。これにより、第１シールド部材と第２シールド部材との電気的な接続を確実にすることができる。また、第１シールド部材と第２シールド部材との引っ張り強度を向上させることができる。   According to the present invention, the second shield member can be securely sandwiched between the caulking ring and the flexible region by bending and deforming the flexible region radially outward of the cylindrical portion. Thereby, the electrical connection between the first shield member and the second shield member can be ensured. Further, the tensile strength between the first shield member and the second shield member can be improved.

本発明の実施態様としては以下の態様が好ましい。前記一対の対向壁は、前記筒部の径方向外方について凸形状に湾曲していることが好ましい。   As embodiments of the present invention, the following embodiments are preferable. The pair of opposing walls are preferably curved in a convex shape with respect to the radially outer side of the cylindrical portion.

上記の態様によれば、一対の対向壁は、カシメリングがかしめ付けられたときに、確実に、筒部の径方向外方に撓み変形する。これにより、第１シールド部材と第２シールド部材との電気的な接続及び、引っ張り強度を確実に向上させることができる。   According to the above aspect, when the caulking is caulked, the pair of opposing walls are surely bent and deformed outward in the radial direction of the cylindrical portion. Thereby, the electrical connection between the first shield member and the second shield member and the tensile strength can be reliably improved.

前記一対の対向壁には、前記対向壁の肉厚方向の外方に突出すると共に、前記突出縁部と離間した複数の突出部が互いに間隔を空けて形成されており、複数の前記突出部のうち隣り合う突出部の間には複数の前記可撓領域が形成されており、前記突出部は機器のケースと接触することが好ましい。 The pair of opposing walls protrude outward in the thickness direction of the opposing walls, and a plurality of protrusions spaced apart from the protruding edges are formed at intervals, and the plurality of protrusions It is preferable that a plurality of the flexible regions are formed between adjacent protrusions, and the protrusions are in contact with a case of the device.

上記の態様によれば、突出部が機器のケースと接触することにより、ケースと第１シールド部材との接触面積が増大するので、シールド性能を向上させることができる。また、突出部は突出縁部と離間しているので、筒部を拡径変形させようとする力が、突出部から突出縁部に伝達されて、突出縁部によって受けられることはない。この結果、筒部は容易に拡径変形することができる。   According to said aspect, since a contact area of a case and a 1st shield member increases because a protrusion part contacts with the case of an apparatus, shield performance can be improved. Further, since the projecting portion is separated from the projecting edge portion, the force for expanding and deforming the cylindrical portion is transmitted from the projecting portion to the projecting edge portion and is not received by the projecting edge portion. As a result, the cylindrical portion can be easily expanded in diameter.

本発明によれば、第１シールド部材と第２シールド部材との接続不良を抑制することができる。   According to the present invention, poor connection between the first shield member and the second shield member can be suppressed.

実施形態１に係るコネクタを示す側面図The side view which shows the connector which concerns on Embodiment 1. コネクタを示す側断面図Side sectional view showing the connector ブラケットを示す平面図Top view showing bracket ブラケットを示す背面図Rear view showing bracket ブラケットにカシメリングが取り付けられた状態を示す一部省略背面図Partially omitted rear view showing the caulking ring attached to the bracket コネクタハウジングに対してブラケット及びカシメリングが分離された状態を占める側断面図Side sectional view occupying a state where the bracket and the caulking ring are separated from the connector housing 実施形態２に係るブラケットを示す平面図The top view which shows the bracket which concerns on Embodiment 2. 実施形態２に係るブラケットを示す背面図The rear view which shows the bracket which concerns on Embodiment 2. 実施形態３に係るブラケットを示す平面図The top view which shows the bracket which concerns on Embodiment 3. 実施形態３に係るブラケットを示す背面図The rear view which shows the bracket which concerns on Embodiment 3. 実施形態４に係るブラケットを示す平面図The top view which shows the bracket which concerns on Embodiment 4. 実施形態４に係るブラケットを示す背面図The rear view which shows the bracket which concerns on Embodiment 4. 従来技術に係るブラケットにカシメリングが取り付けられた状態を示す一部省略背面図Partially omitted rear view showing a state in which the caulking ring is attached to the bracket according to the prior art

＜実施形態１＞
本発明に係るシールド部材１０及びシールド導電体１１をコネクタ１２に適用した実施形態１について、図１ないし図６を参照しつつ説明する。シールド導電体１１は、図示しないハイブリッド自動車や電気自動車等の車両において、図示しないインバータ、モータ（ジェネレータ）、バッテリ間等の動力電線として配設される。本実施形態に係るコネクタ１２は、インバータとモータとの間に配設されるシールド導電体１１の端末に取り付けられて、図示しないインバータのケース（図示せず）に組み付けられる。以下では、上下方向については、図１を基準とし、前後方向については、図１の左方を前方、右方を後方として説明する。 <Embodiment 1>
A first embodiment in which a shield member 10 and a shield conductor 11 according to the present invention are applied to a connector 12 will be described with reference to FIGS. 1 to 6. The shield conductor 11 is disposed as a power wire for an inverter, a motor (generator), a battery, or the like (not shown) in a vehicle such as a hybrid car or an electric car (not shown). The connector 12 according to this embodiment is attached to a terminal of a shield conductor 11 disposed between the inverter and the motor, and is assembled to an inverter case (not shown). In the following description, the vertical direction will be described with reference to FIG. 1, and the front-back direction will be described with the left side in FIG. 1 as the front and the right side as the rear.

（コネクタ１２）
コネクタ１２は、合成樹脂製のコネクタハウジング１３の内部に、複数の電線１４の端末に接続された複数の端子金具１５が収容されている。シールド導電体１１は、複数の電線１４と、この電線１４を電磁的にシールドするシールド部材１０と、を備える。シールド部材１０は、電線１４が挿通される金属製のブラケット１６（第１シールド部材に相当）と、電線１４が挿通されることで電線１４を一括して包囲する編組線１７（第２シールド部材に相当）と、編組線１７の端部をブラケット１６との間で加締めて保持するカシメリング１８と、を備える。 (Connector 12)
The connector 12 accommodates a plurality of terminal fittings 15 connected to ends of a plurality of electric wires 14 inside a connector housing 13 made of synthetic resin. The shield conductor 11 includes a plurality of electric wires 14 and a shield member 10 that electromagnetically shields the electric wires 14. The shield member 10 includes a metal bracket 16 (corresponding to a first shield member) through which the electric wire 14 is inserted, and a braided wire 17 (second shield member) that collectively surrounds the electric wire 14 through the insertion of the electric wire 14. And a caulking ring 18 that holds the end of the braided wire 17 by crimping with the bracket 16.

電線１４は、芯線１９の周囲が絶縁被覆２０で覆われてなる被覆電線１４である。芯線１９は、多数の金属素線が撚り合わされてなる撚り線が用いられている。   The electric wire 14 is a covered electric wire 14 in which the periphery of the core wire 19 is covered with an insulating coating 20. The core wire 19 is a stranded wire formed by twisting a large number of metal strands.

図２に示すように、金属製の端子金具１５は、インバータ側の相手端子（図示せず）に対して接続可能な機器接続部２１と、電線１４の端末に露出した芯線１９にかしめ付けられるバレル部２２とから構成される。機器接続部２１は、片持ちの板状をなすとともに、その先端部には相手端子に対して固定するためのボルト（図示せず）を挿通可能な貫通孔２３が形成されている。端子金具１５及び電線１４の外側には、合成樹脂でモールド成形されることによりモールド部２４が形成されている。上記した機器接続部２１はモールド部２４から外方に突出されている。   As shown in FIG. 2, the metal terminal fitting 15 is caulked to a device connection portion 21 that can be connected to a counterpart terminal (not shown) on the inverter side and a core wire 19 exposed at the end of the electric wire 14. It is comprised from the barrel part 22. FIG. The device connection portion 21 has a cantilever plate shape, and a through-hole 23 into which a bolt (not shown) for fixing to a mating terminal can be inserted is formed at the tip portion. A molded portion 24 is formed on the outside of the terminal fitting 15 and the electric wire 14 by molding with a synthetic resin. The above-described device connection portion 21 protrudes outward from the mold portion 24.

コネクタハウジング１３は、端子金具１５及び電線１４を保持する合成樹脂製の部材であって、端子金具１５、電線１４、及びモールド部２４が収容されるようになっている。   The connector housing 13 is a synthetic resin member that holds the terminal fitting 15 and the electric wire 14, and accommodates the terminal fitting 15, the electric wire 14, and the molded portion 24.

コネクタハウジング１３の外面には、機器のケースとの間に介在して、コネクタハウジング１３とケースとの間をシールするシールリング２５が取り付けられている。また、電線１４の絶縁被覆２０にはゴム栓２６が外嵌されており、このゴム栓２６は、コネクタハウジング１３の内面と密着することにより、電線１４とコネクタハウジング１３との間をシールするようになっている。ゴム栓２６の後方には、コネクタハウジング１３からゴム栓２６が抜けるのを規制する合成樹脂製のゴム栓保持部材２７が、コネクタハウジング１３に取り付けられている。   A seal ring 25 is attached to the outer surface of the connector housing 13 so as to be interposed between the case of the device and seal between the connector housing 13 and the case. Further, a rubber plug 26 is fitted on the insulating coating 20 of the electric wire 14, and the rubber plug 26 is in close contact with the inner surface of the connector housing 13 so as to seal between the electric wire 14 and the connector housing 13. It has become. A rubber plug holding member 27 made of a synthetic resin that restricts the rubber plug 26 from coming out of the connector housing 13 is attached to the connector housing 13 behind the rubber plug 26.

モールド部２４の前端部には外方側に段差状に張り出す段差部２８が全周に亘って形成されており、この段差部２８にコネクタハウジング１３の前端部が後方から突き当てられる。モールド部２４の上下には、電線１４における径方向の外側へ突出する係止凸部２９がそれぞれ設けられている。   A stepped portion 28 projecting outward in a stepped shape is formed on the front end portion of the mold portion 24 over the entire circumference, and the front end portion of the connector housing 13 is abutted against the stepped portion 28 from the rear. On the upper and lower sides of the mold portion 24, locking projections 29 that protrude outward in the radial direction of the electric wire 14 are respectively provided.

コネクタハウジング１３は、全体として前後に開口した略筒状をなし、モールド部２４に対して電線１４の軸方向に沿って後方から組み付けられるとともに内部に電線１４が挿通可能とされる。コネクタハウジング１３の内面には、モールド部２４の係止凸部２９に係止する係止凹部３０が設けられている。   The connector housing 13 as a whole has a substantially cylindrical shape opened in the front-rear direction. The connector housing 13 is assembled from the rear along the axial direction of the electric wire 14 with respect to the mold portion 24 and the electric wire 14 can be inserted into the inner portion. On the inner surface of the connector housing 13, a locking recess 30 that is locked to the locking projection 29 of the mold portion 24 is provided.

コネクタハウジング１３の前端側の外周面には、シールリング２５が装着されている。コネクタハウジング１３の後端部の内周面には、ゴム栓２６及びゴム栓保持部材２７を装着可能な装着凹部３２が設けられている。ゴム栓保持部材２７には、コネクタハウジング１３の係止孔３３に係止してゴム栓２６を抜け止めする係止爪３４が上下にそれぞれ突設されている。   A seal ring 25 is attached to the outer peripheral surface on the front end side of the connector housing 13. A mounting recess 32 in which the rubber plug 26 and the rubber plug holding member 27 can be mounted is provided on the inner peripheral surface of the rear end portion of the connector housing 13. On the rubber plug holding member 27, locking claws 34 that are locked in the locking holes 33 of the connector housing 13 to prevent the rubber plug 26 from coming off are provided in a protruding manner in the vertical direction.

（シールド部材１０）
金属製のブラケット１６は、コネクタハウジング１３に対して後方から外嵌可能とされており、図３及び図４に示すように、左右方向に細長い扁平な長円形状の筒部３５と、筒部３５の左右両端部から、筒部３５の径方向外方に張り出す突出縁部３６と、を備える。 (Shield member 10)
The metal bracket 16 can be externally fitted to the connector housing 13 from the rear, and as shown in FIGS. 3 and 4, a flat oval cylindrical portion 35 elongated in the left-right direction, and a cylindrical portion A projecting edge portion 36 projecting outward in the radial direction of the cylindrical portion 35 from both left and right end portions of the cylindrical portion 35.

筒部３５は、互いに上下に対向配置された一対の対向壁３７，３７と、これら一対の対向壁３７，３７の両側で一対の対向壁３７，３７の間を連ねる湾曲した一対の湾曲壁３８，３８とからなる。   The cylindrical portion 35 includes a pair of opposing walls 37 and 37 that are arranged to face each other vertically, and a pair of curved walls 38 that are connected between the pair of opposing walls 37 and 37 on both sides of the pair of opposing walls 37 and 37. , 38.

一対の対向壁３７，３７は、ほぼ一定の間隔を空けて左右方向に略水平に延びている。詳細に説明すると、一対の対向壁３７，３７は、筒部３５の径方向外方について僅かに凸形状に湾曲して形成されている。   The pair of opposing walls 37, 37 extend substantially horizontally in the left-right direction with a substantially constant interval. If it demonstrates in detail, a pair of opposing walls 37 and 37 will be slightly curved and formed in the radial direction outer side of the cylinder part 35. As shown in FIG.

湾曲壁３８は、半円筒形状（半円形状）であって、左右方向に膨らむようにほぼ一定の曲率でＵ字状に湾曲している。   The curved wall 38 has a semi-cylindrical shape (semi-circular shape), and is curved in a U shape with a substantially constant curvature so as to swell in the left-right direction.

突出縁部３６は、筒部３５の前端部のうち、一対の湾曲壁３８，３８が形成された領域に、湾曲壁３８の肉厚方向外方に突出して形成されている。突出縁部３６は、機器のケースに取り付けられるようになっている。突出縁部３６には、円形の取り付け孔３９が貫通形成されており、ボルト等をケースのねじ孔に挿通することにより、突出縁部３６とケースとを一体に固定するようになっている。   The protruding edge portion 36 is formed to protrude outward in the thickness direction of the curved wall 38 in the region where the pair of curved walls 38, 38 are formed in the front end portion of the cylindrical portion 35. The protruding edge 36 is attached to the case of the device. A circular attachment hole 39 is formed through the protruding edge 36, and the protruding edge 36 and the case are fixed integrally by inserting a bolt or the like into the screw hole of the case.

編組線１７は、銅にスズメッキが施された複数本の金属細線を編み込んで構成されている。編組線１７は、複数の電線１４を一括して包囲することが可能な横長な筒状に形成されており、電線１４の軸方向に沿って延出されている。編組線１７は、ブラケット１６の筒部３５に対して筒部３５の後端部側から外嵌されるようになっている。筒部３５の後端部は編組線１７によって覆われている。   The braided wire 17 is configured by braiding a plurality of fine metal wires in which tin plating is applied to copper. The braided wire 17 is formed in a horizontally long cylindrical shape that can collectively surround the plurality of electric wires 14, and extends along the axial direction of the electric wires 14. The braided wire 17 is externally fitted to the tubular portion 35 of the bracket 16 from the rear end side of the tubular portion 35. The rear end portion of the cylindrical portion 35 is covered with the braided wire 17.

カシメリング１８は金属製であって、例えばアルミニウムやアルミニウム合金からなる。カシメリング１８は略筒状をなしており、カシメ前においては、ブラケット１６の筒部３５よりもやや大きい長円形状をなし、治具等を用いてかしめ付けられた後は、筒部３５の外周の全体に密着するとともに、周径の余った部分は、図５に示すように、２重に重なった折り返し部４０として左右にそれぞれ水平に突出する。折り返し部４０は、筒部３５の湾曲壁３８に対応する位置に形成される。   The caulking ring 18 is made of metal and is made of, for example, aluminum or an aluminum alloy. The caulking ring 18 has a substantially cylindrical shape. Before the caulking, the caulking ring 18 has an oval shape slightly larger than the cylindrical portion 35 of the bracket 16, and after being caulked using a jig or the like, As shown in FIG. 5, the part with the excessive outer diameter is in close contact with the entire outer periphery and protrudes horizontally to the left and right as a folded portion 40 that overlaps with each other. The folded portion 40 is formed at a position corresponding to the curved wall 38 of the cylindrical portion 35.

図５に示すように、筒部３５のうち一対の対向壁３７，３７が形成された領域には、突出縁部３６は形成されていない。これにより、対向壁３７のうち突出縁部３６が形成されていない領域は、筒部３５の径方向外方（図５における矢線Ａで示す方向）について撓み変形可能な可撓領域とされる。なお、図５には、ブラケット１６とカシメリング１８以外の構成については省略して記載してある。   As shown in FIG. 5, the protruding edge portion 36 is not formed in the region where the pair of opposing walls 37, 37 are formed in the cylindrical portion 35. Thereby, the area | region in which the protrusion edge part 36 is not formed among the opposing walls 37 is made into the flexible area | region which can bend and deform | transform about the radial direction outer side (direction shown by the arrow A in FIG. 5) of the cylinder part 35. . In FIG. 5, configurations other than the bracket 16 and the caulking ring 18 are omitted.

（組み付け工程）
続いて、本実施形態に係るコネクタ１２の組み付け工程について説明する。なお、組み付け工程は、以下の説明に限定されない。 (Assembly process)
Then, the assembly | attachment process of the connector 12 which concerns on this embodiment is demonstrated. The assembly process is not limited to the following description.

まず、電線１４の端末に端子金具１５を圧着接続し、それらの接続部分の周りにモールド部２４をモールド成形する。また、各電線１４にコネクタハウジング１３、ゴム栓２６、ブラケット１６、編組線１７及びカシメリング１８を先通ししておき、コネクタハウジング１３をモールド部２４に対して後方から組み付ける。   First, the terminal metal fitting 15 is crimped and connected to the end of the electric wire 14, and the molding part 24 is molded around those connecting parts. In addition, the connector housing 13, the rubber plug 26, the bracket 16, the braided wire 17 and the caulking ring 18 are passed through the electric wires 14 in advance, and the connector housing 13 is assembled to the mold portion 24 from the rear.

次に、図６に示すように、コネクタハウジング１３に対して後方（矢線Ｃで示す方向）からブラケット１６を組み付け、編組線１７の前端部を筒部３５に対して後方から外嵌させるとともに、その編組線１７の前端部に対してカシメリング１８を後方から外嵌させる。   Next, as shown in FIG. 6, the bracket 16 is assembled to the connector housing 13 from the rear (in the direction indicated by the arrow C), and the front end portion of the braided wire 17 is externally fitted to the cylindrical portion 35 from the rear. The caulking ring 18 is externally fitted to the front end portion of the braided wire 17 from behind.

そして、編組線１７の前端部を筒部３５とカシメリング１８との間に介在させた状態で、カシメリング１８を外部から治具を使って全周に亘ってかしめ付けると、カシメリング１８の左右両側が折り重なって折り返し部４０として突出し、筒部３５の外周の全周に亘って編組線１７が筒部３５とカシメリング１８との間で挟持される。   Then, when the caulking ring 18 is caulked from the outside using a jig with the front end portion of the braided wire 17 interposed between the cylindrical portion 35 and the caulking ring 18, The left and right sides are folded and protruded as a folded portion 40, and the braided wire 17 is sandwiched between the cylindrical portion 35 and the crimping ring 18 over the entire outer periphery of the cylindrical portion 35.

（作用、効果）
続いて、本実施形態の作用、効果について説明する。まず、従来技術における問題点について図１３を参照して説明する。従来技術に係るシールド部材においては、ブラケット１１６の筒部１３５には、筒部１３５の全周に亘って、筒部１３５の径方向外方に突出する突出縁部１３６が形成されている。この突出縁部１３６の筒部１３５に編組線をカシメリング１１８でカシメ付けると、筒部１３５には縮径される方向（図１３における矢線Ｘで示す方向）の力が加わり、その力は筒部１３５に連なる突出縁部１３６によっても受けられる。筒部１３５の小径側の両端部（湾曲壁部分）に加わる強い縮径力は、突出縁部１３６が筒部１３５の全周にわたって連続しているから、筒部１３５のうち小径側の両端部以外の部分（湾曲壁間に位置する一対の対向壁）にも突出縁部１３６から押さえ込まれるような力を受け、結局、筒部１３５の対向壁にも強い力が加えられてしまい、筒部１３５は、その径方向内方（矢線Ｙで示す方向）に撓み変形してしまうと考えられる。 (Function, effect)
Then, the effect | action and effect of this embodiment are demonstrated. First, problems in the prior art will be described with reference to FIG. In the shield member according to the prior art, a protruding edge portion 136 protruding outward in the radial direction of the cylindrical portion 135 is formed on the cylindrical portion 135 of the bracket 116 over the entire circumference of the cylindrical portion 135. When the braided wire is crimped to the cylindrical portion 135 of the protruding edge 136 with the caulking ring 118, a force in the direction of reducing the diameter (the direction indicated by the arrow X in FIG. 13) is applied to the cylindrical portion 135. It is also received by the protruding edge 136 that continues to the tube part 135. The strong diameter-reducing force applied to both end portions (curved wall portions) on the small-diameter side of the cylindrical portion 135 is such that the projecting edge 136 is continuous over the entire circumference of the cylindrical portion 135. Other parts (a pair of opposing walls located between the curved walls) are also subjected to a force that is pressed from the protruding edge 136, and eventually a strong force is also applied to the opposing wall of the cylindrical part 135, and the cylindrical part No. 135 is considered to be bent and deformed radially inward (direction indicated by arrow Y).

これに対し本実施形態によれば、ブラケット１６の筒部３５にカシメリング１８がかしめ付けられ、折り返し部４０が湾曲壁３８に対応する領域に形成されると、湾曲部に対しては、カシメリング１８から、筒部３５の径方向内方（図５における矢線Ｂで示す方向）に圧縮する力が加えられる。すると、筒部３５のうち対向壁３７については、その反作用によって拡径方向（図５における矢線Ａで示す方向）の力が加えられる。本実施形態においては、一対の対向壁３７，３７には突出縁部３６が形成されていないことにより、撓み変形可能な可撓領域が形成されている。この可撓領域が筒部３５の径方向外方に撓み変形するということは、筒部３５とカシメリング１８との隙間が一層小さくなることを意味する。これにより、カシメリング１８と可撓領域との隙間間において編組線１７を確実に挟持することができる。これにより、ブラケット１６と編組線１７との電気的な接続を確実にすることができる。また、ブラケット１６と編組線１７との引っ張り強度を向上させることができる。   On the other hand, according to the present embodiment, when the caulking ring 18 is caulked to the cylindrical portion 35 of the bracket 16 and the folded portion 40 is formed in a region corresponding to the curved wall 38, the caulking portion is not caulked. A force is applied from the ring 18 to compress the tube portion 35 inward in the radial direction (the direction indicated by the arrow B in FIG. 5). Then, with respect to the opposing wall 37 in the cylindrical portion 35, a force in the diameter increasing direction (direction indicated by arrow A in FIG. 5) is applied by the reaction. In this embodiment, the pair of opposing walls 37, 37 are not formed with the protruding edge 36, thereby forming a flexible region that can be bent and deformed. That the flexible region is bent and deformed radially outward of the cylindrical portion 35 means that the gap between the cylindrical portion 35 and the caulking ring 18 is further reduced. Thereby, the braided wire 17 can be reliably clamped between the gaps between the crimping ring 18 and the flexible region. Thereby, the electrical connection between the bracket 16 and the braided wire 17 can be ensured. Further, the tensile strength between the bracket 16 and the braided wire 17 can be improved.

また、本実施形態においては、一対の対向壁３７，３７は、筒部３５の径方向外方について凸形状に湾曲している。これにより、一対の対向壁３７，３７は、カシメリング１８がかしめ付けられたときに、確実に、筒部３５の径方向外方に撓み変形する。これにより、ブラケット１６と編組線１７との電気的な接続及び、引っ張り強度を確実に向上させることができる。この結果、ブラケット１６と編組線１７との接続不良を抑制することができる。   In the present embodiment, the pair of opposing walls 37, 37 are curved in a convex shape with respect to the radially outer side of the cylindrical portion 35. As a result, the pair of opposing walls 37, 37 are surely bent and deformed radially outward of the cylindrical portion 35 when the caulking ring 18 is caulked. Thereby, the electrical connection between the bracket 16 and the braided wire 17 and the tensile strength can be reliably improved. As a result, poor connection between the bracket 16 and the braided wire 17 can be suppressed.

＜実施形態２＞
次に、本発明の実施形態２について図７ないし図８を参照しつつ説明する。本実施形態においては、突出縁部４６の上下方向の高さ寸法は、湾曲壁３８の上下方向の高さ寸法を略同じに設定されている。 <Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to FIGS. In the present embodiment, the vertical dimension of the protruding edge 46 is set to be substantially the same as the vertical dimension of the curved wall 38.

上記以外の構成については、実施形態１と略同様なので、同一部材については同一符号を付し、重複する説明を省略する。   Since the configuration other than the above is substantially the same as that of the first embodiment, the same members are denoted by the same reference numerals, and redundant description is omitted.

本実施形態によれば、ブラケット４５の高さ寸法を小さくすることができるので、シールド部材１０及びシールド導電体１１を全体として小型化することができる。   According to this embodiment, since the height dimension of the bracket 45 can be reduced, the shield member 10 and the shield conductor 11 can be downsized as a whole.

＜実施形態３＞
次に、本発明の実施形態３について図９ないし図１０を参照しつつ説明する。本実施形態においては、ブラケット５５の突出縁部５６の上下方向の高さ寸法は、一対の対向壁３７，３７の外面における上下方向の高さ寸法と略同じに形成されている。これにより、一対の対向壁３７，３７に形成された可撓領域Ｑの左右方向の幅寸法は、比較的に狭くなっている。 <Embodiment 3>
Next, a third embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the vertical dimension of the protruding edge portion 56 of the bracket 55 is formed to be substantially the same as the vertical dimension of the outer surfaces of the pair of opposing walls 37, 37. Thereby, the width dimension of the left-right direction of the flexible area | region Q formed in a pair of opposing walls 37 and 37 is comparatively narrow.

上記以外の構成については、実施形態１と略同様なので、同一部材については同一符号を付し、重複する説明を省略する。   Since the configuration other than the above is substantially the same as that of the first embodiment, the same members are denoted by the same reference numerals, and redundant description is omitted.

＜実施形態４＞
次に、本発明の実施形態４について図１１ないし図１２を参照しつつ説明する。本実施形態においては、一対の対向壁３７，３７には、対向壁３７の肉厚方向の外方に突出する複数の突出部６０が、互いに間隔を空けて形成されている。突出部６０は突出縁部３６とは離間して形成されている。突出部６０は、ブラケット６５がケースに取り付けられた状態で、ケースと接触するようになっている。 <Embodiment 4>
Next, a fourth embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a plurality of projecting portions 60 projecting outward in the thickness direction of the opposing wall 37 are formed on the pair of opposing walls 37, 37 at intervals. The protrusion 60 is formed away from the protrusion edge 36. The protruding portion 60 comes into contact with the case in a state where the bracket 65 is attached to the case.

本実施形態においては、隣り合う突出部６０の間に、複数の可撓領域Ｒが形成されている。複数の可撓領域Ｒは、互いに突出部６０によって分断されているが、全体として対向壁３７を撓み変形可能にしている。   In the present embodiment, a plurality of flexible regions R are formed between adjacent protrusions 60. The plurality of flexible regions R are separated from each other by the protruding portion 60, but the opposing wall 37 is bent and deformed as a whole.

上記以外の構成については、実施形態１と略同様なので、同一部材については同一符号を付し、重複する説明を省略する。   Since the configuration other than the above is substantially the same as that of the first embodiment, the same members are denoted by the same reference numerals, and redundant description is omitted.

本実施形態によれば、突出部６０が機器のケースと接触することにより、ケースとブラケット６５との接触面積が増大するので、シールド性能を向上させることができる。また、突出部６０は突出縁部３６と離間しているので、筒部３５を拡径変形させようとする力が、突出部６０から突出縁部３６に伝達されて、突出縁部３６によって受けられることはない。この結果、筒部３５は容易に拡径変形することができる。   According to the present embodiment, the contact area between the case and the bracket 65 increases when the projecting portion 60 comes into contact with the case of the device, so that the shielding performance can be improved. Further, since the projecting portion 60 is separated from the projecting edge portion 36, a force for expanding and deforming the cylindrical portion 35 is transmitted from the projecting portion 60 to the projecting edge portion 36 and received by the projecting edge portion 36. It will never be done. As a result, the cylindrical portion 35 can be easily deformed to expand its diameter.

＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
（１）本実施形態においては、一対の対向壁３７，３７は、筒部３５の径方向外方について凸形状に僅かに湾曲する形状としたが、これに限られず、一対の対向壁３７，３７は、平坦な形状としてもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the present embodiment, the pair of opposed walls 37, 37 are slightly curved in a convex shape with respect to the outer side in the radial direction of the cylindrical portion 35, but the present invention is not limited to this, and the pair of opposed walls 37, 37 37 may have a flat shape.

（２）本実施形態においては、第１シールド部材としてブラケット１６を用いたが、これに限られず、例えば、第１シールド部材として、コネクタハウジング１３の外側を包囲するように取り付けられて、コネクタハウジング１３を電磁的にシールドするシールドシェルを用いてもよい。   (2) In the present embodiment, the bracket 16 is used as the first shield member. However, the present invention is not limited to this. For example, the first shield member is attached so as to surround the outer side of the connector housing 13, and the connector housing. A shield shell that electromagnetically shields 13 may be used.

１０…シールド部材
１１…シールド導電体
１４…電線
１６，４５，５５，６５…ブラケット（第１シールド部材）
１７…編組線（第２シールド部材）
１８…カシメリング
３５…筒部
３６，４６，５６…突出縁部
３７…対向壁
３８…湾曲壁
６０…突出部
Ｐ，Ｑ，Ｒ…可撓領域 DESCRIPTION OF SYMBOLS 10 ... Shield member 11 ... Shield conductor 14 ... Electric wire 16, 45, 55, 65 ... Bracket (1st shield member)
17 ... Braided wire (second shield member)
DESCRIPTION OF SYMBOLS 18 ... Caulking 35 ... Tube part 36,46,56 ... Projection edge part 37 ... Opposite wall 38 ... Curved wall 60 ... Projection part P, Q, R ... Flexible area | region

Claims (4)

互いに対向する一対の対向壁と前記一対の対向壁間を連ねる湾曲した一対の湾曲壁とからなる扁平な形状の筒部に電線が挿通される金属製の第１シールド部材と、
前記電線が挿通される編組線からなり端末部が前記筒部の一方の端部を覆った状態で外嵌される第２シールド部材と、
前記筒部に外嵌された前記編組線を外周側からかしめ付けて固定するカシメリングとを備えたシールド部材であって、
前記筒部の他方の端部のうち、少なくとも前記一対の湾曲壁には前記湾曲壁の肉厚方向の外方に突出する突出縁部が形成されており、
前記一対の対向壁には、前記突出縁部が形成されないことにより前記筒部の径方向外方に撓み変形可能な可撓領域が形成されているシールド部材。 A metal first shield member into which an electric wire is inserted into a flat cylindrical portion composed of a pair of opposed walls facing each other and a curved pair of curved walls connecting between the pair of opposed walls;
A second shield member that is formed of a braided wire through which the electric wire is inserted and that is externally fitted in a state in which the terminal portion covers one end of the cylindrical portion;
A caulking ring that caulks and fixes the braided wire that is externally fitted to the cylindrical portion from the outer peripheral side;
Of the other end of the cylindrical portion, at least the pair of curved walls are formed with protruding edges that protrude outward in the thickness direction of the curved walls,
A shield member in which a pair of opposing walls is formed with a flexible region that can be bent and deformed radially outward of the cylindrical portion by not forming the protruding edge portion. 前記一対の対向壁は、前記筒部の径方向外方について凸形状に湾曲している請求項１に記載のシールド部材。   2. The shield member according to claim 1, wherein the pair of opposed walls are curved in a convex shape with respect to a radially outer side of the cylindrical portion. 前記一対の対向壁には、前記対向壁の肉厚方向の外方に突出すると共に、前記突出縁部と離間した複数の突出部が互いに間隔を空けて形成されており、複数の前記突出部のうち隣り合う突出部の間には複数の前記可撓領域が形成されており、前記突出部は機器のケースと接触する請求項１または請求項２に記載のシールド部材。 The pair of opposing walls protrude outward in the thickness direction of the opposing walls, and a plurality of protrusions spaced apart from the protruding edges are formed at intervals, and the plurality of protrusions The shield member according to claim 1 , wherein a plurality of the flexible regions are formed between adjacent protrusions, and the protrusions are in contact with a case of the device. 電線と、
互いに対向する一対の対向壁と前記一対の対向壁間を連結する湾曲した一対の湾曲壁とからなる扁平な形状の筒部に前記電線が挿通される金属製の第１シールド部材と、
前記電線が挿通される編組線からなり端末部が前記筒部の一方の端部側から外嵌される第２シールド部材と、
前記筒部に外嵌された前記編組線を外周側からかしめ付けて固定するカシメリングとを備えたシールド導電体であって、
前記筒部の他方の端部のうち、少なくとも前記一対の湾曲壁には前記湾曲壁の肉厚方向の外方に突出する突出縁部が形成されており、
前記一対の対向壁には、前記突出縁部が形成されないことにより前記筒部の径方向外方に撓み変形可能な可撓領域が形成されているシールド導電体。 Electric wires,
A first shield member made of metal through which the electric wire is inserted into a flat cylindrical portion composed of a pair of opposed walls facing each other and a pair of curved walls connecting between the pair of opposed walls;
A second shield member comprising a braided wire through which the electric wire is inserted and having a terminal portion fitted from one end side of the cylindrical portion;
A shield conductor including a caulking ring that is fixed by caulking the braided wire externally fitted to the cylindrical portion from the outer peripheral side;
Of the other end of the cylindrical portion, at least the pair of curved walls are formed with protruding edges that protrude outward in the thickness direction of the curved walls,
The shield conductor in which the said pair of opposing wall is formed with the flexible area | region which can bend and deform in the radial direction outward of the said cylinder part by not forming the said protrusion edge part.
JP2011181534A 2011-08-23 2011-08-23 Shield member and shield conductor Expired - Fee Related JP5772386B2 (en)

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