JP4514682B2

JP4514682B2 - Rotation detection sensor

Info

Publication number: JP4514682B2
Application number: JP2005288265A
Authority: JP
Inventors: 智也鈴木; 孝伊藤
Original assignee: Sumiden Electronics Ltd
Current assignee: Sumiden Electronics Ltd
Priority date: 2005-09-30
Filing date: 2005-09-30
Publication date: 2010-07-28
Anticipated expiration: 2025-09-30
Also published as: JP2007101231A

Description

この発明は、四輪自動車等におけるＡＢＳ（アンチロック・ブレーキ・システム）等の走行自動制御システムを構成する車輪速センサ等の回転検出センサに関するものである。 The present invention relates to a rotation detection sensor such as a wheel speed sensor constituting an automatic travel control system such as an ABS (anti-lock brake system) in a four-wheeled vehicle or the like.

この種の回転検出センサの１つである車輪速センサＰには、例えば、図７、図８に示すように、磁気変動を検出して電気信号に変換する検出部ａと、車輪速センサＰを自動車ボディ等に取付けるための固定部ｂとから成り、その検出部ａに、ホールＩＣ等の回転検出素子１１にバイアス用磁界を印加する磁石３を設け、回転検出素子１１からリード端子１２を介して出力ケーブル６を引き出したものがある（特許文献１参照）。図中、４は樹脂被覆、５は中継端子、７はホルダー２の蓋、１３はコンデンサである。
特開２００３−３０７５２３号公報 For example, as shown in FIGS. 7 and 8, a wheel speed sensor P that is one of the rotation detection sensors of this type includes a detection unit a that detects a magnetic fluctuation and converts it into an electric signal, and a wheel speed sensor P. And a magnet 3 for applying a bias magnetic field to the rotation detection element 11 such as a Hall IC, and the lead terminal 12 is connected to the rotation detection element 11. In some cases, the output cable 6 is pulled out through the cable (see Patent Document 1). In the figure, 4 is a resin coating, 5 is a relay terminal, 7 is a lid of the holder 2, and 13 is a capacitor.
JP 2003-307523 A

この車輪速センサＰは、図７に示すように回転する被検出体Ｂに対向して設けられ、被検出体Ｂの回転による上記バイアス磁界の変動を回転検出素子１１で検出してデジタル電磁信号に変換し、その電磁信号を出力ケーブル６でもって各種制御器などの外部機器に伝達する。
このバイアス磁界を印加する車輪速センサＰにあっては、被検出体Ｂには、自ら磁気を帯びていない鉄等の強磁性体製エンコーダが使用される。一方、磁石３を有さない車輪速センサＰは、被検出体Ｂに、その外周縁にＳ極とＮ極を周方向に交互に連続するように着磁した磁石製エンコーダを使用し、そのＳ極・Ｎ極からの磁界変動を回転検出素子１１で検出する（特許文献１参照）。 As shown in FIG. 7, the wheel speed sensor P is provided so as to face the rotating detection object B, and the rotation detection element 11 detects a change in the bias magnetic field due to the rotation of the detection object B, thereby generating a digital electromagnetic signal. The electromagnetic signal is transmitted to an external device such as various controllers through the output cable 6.
In the wheel speed sensor P that applies the bias magnetic field, a ferromagnetic encoder such as iron that is not magnetized by itself is used as the detection object B. On the other hand, the wheel speed sensor P that does not have the magnet 3 uses a magnet encoder magnetized so that S poles and N poles are alternately continuously arranged in the circumferential direction on the outer periphery of the body B to be detected. Magnetic field fluctuations from the S and N poles are detected by the rotation detecting element 11 (see Patent Document 1).

今日、この種の車輪速センサＰにおいても小型化の要求がなされ、その小型化の一つの手段として、対のリード端子１２、１２に出力ケーブル６の対の導体６ｂ、６ｂを直接に接続して、車輪速センサＰの長さを短くすることが考えられる。
このとき、その対のリード端子１２、１２と出力ケーブル６の対の導体６ｂ、６ｂとの両接続部において、両接続部間に隔壁を設けて両者の短絡（両導体６ｂ、６ｂの接触）を防止することが行われる。 Today, this type of wheel speed sensor P is also required to be miniaturized, and as one means for miniaturization, the pair of conductors 6b, 6b of the output cable 6 is directly connected to the pair of lead terminals 12, 12. Thus, it is conceivable to shorten the length of the wheel speed sensor P.
At this time, in both connection portions between the pair of lead terminals 12 and 12 and the pair of conductors 6b and 6b of the output cable 6, a partition is provided between both connection portions to short-circuit the two (contact of both conductors 6b and 6b). It is done to prevent.

しかし、出力ケーブル６は、図７に示すように、対の絶縁芯線６ａ、６ａを外皮６ｃで被覆したものであり、対のリード端子１２、１２との接続は、その絶縁芯線６ａ、６ａの絶縁被覆を剥いだ導体６ｂ、６ｂでもって行う。このため、出力ケーブル６が隔壁を通る部分においては、出力ケーブル６は対の絶縁芯線６ａ、６ａになってその隔壁によって隔離されるようになっていなければならず、その後、導体６ｂ、６ｂとなってリード端子１２、１２に接続される態様となる（図１の符号２２と符号６ａ、６ｂの位置関係参照）。 However, as shown in FIG. 7, the output cable 6 is formed by covering a pair of insulated core wires 6a and 6a with a sheath 6c, and connecting the pair of lead terminals 12 and 12 to the insulated core wires 6a and 6a. This is done with the conductors 6b and 6b from which the insulation coating has been peeled off. For this reason, in the part where the output cable 6 passes through the partition wall, the output cable 6 must be a pair of insulated core wires 6a and 6a and be separated by the partition wall, and then the conductors 6b and 6b and Thus, the lead terminals 12 and 12 are connected (see the positional relationship between the reference numeral 22 and the reference numerals 6a and 6b in FIG. 1).

このとき、図９に示すように、両絶縁芯線６ａ、６ａは隔壁２２によって広げられ、その広がりは先に行くにつれて徐々に大きくなるため、導体６ｂ、６ｂのリード端子１２、１２との接続部においては、対のリード端子１２、１２の間隔に比べ、導体６ｂ、６ｂの間隔が広くなりがちである。
その状態で、対のリード端子１２、１２と対の導体６ｂ、６ｂを、半田付け、抵抗溶接等により接続しようとすると、リード端子１２、１２と導体６ｂ、６ｂの接触面積が少なくなって、有効な接続強度を得られない。このため、対のリード端子１２、１２と対の導体６ｂ、６ｂを一致させる治具が必要であるとともに、その治具による導体６ｂの位置決め作用が必要となり、コスト面及び作業性の点で問題となる。 At this time, as shown in FIG. 9, both insulating core wires 6a and 6a are widened by the partition wall 22, and the spread gradually increases as they go forward. Therefore, the connecting portions of the conductors 6b and 6b to the lead terminals 12 and 12 are connected. In FIG. 5, the distance between the conductors 6b and 6b tends to be larger than the distance between the pair of lead terminals 12 and 12.
In this state, if the pair of lead terminals 12 and 12 and the pair of conductors 6b and 6b are to be connected by soldering, resistance welding, or the like, the contact area between the lead terminals 12 and 12 and the conductors 6b and 6b is reduced. An effective connection strength cannot be obtained. For this reason, a jig for matching the pair of lead terminals 12, 12 and the pair of conductors 6b, 6b is necessary, and the positioning operation of the conductor 6b by the jig is necessary, which is problematic in terms of cost and workability. It becomes.

この発明は、出力ケーブル６の両絶縁芯線６ａ、６ａの隔壁２２による広がりを少なくすることを課題とする。 This invention makes it a subject to reduce the expansion by the partition 22 of both the insulated core wires 6a and 6a of the output cable 6. FIG.

上記課題を達成するために、この発明は、その隔壁の上縁を出力ケーブルに向かって下り勾配に傾斜させるとともに、その隔壁の厚みを出力ケーブルに向かって徐々に薄くして、出力ケーブルの絶縁芯線をその下り勾配の上縁を通って接続部に導いたのである。 In order to achieve the above object, the present invention inclines the upper edge of the partition wall toward the output cable in a downward slope, and gradually decreases the thickness of the partition wall toward the output cable to insulate the output cable. The core wire was led to the connecting portion through the upper edge of the descending slope.

ここで、隔壁に至る前に、絶縁芯線の被覆を剥いで導体を露出させておけば、導体の径は絶縁芯線に比べてかなり小さい（細い）ため、接続部における導体の広がりも小さいが、その隔壁に至る前での導体同士の接触の恐れがあって、その隔壁に至る前に、絶縁芯線の被覆を剥いで導体を露出させておくことは好ましくない。
一方、絶縁芯線は、絶縁被覆の厚さ分、導体に比べて太いため、その対の絶縁芯線を隔壁で単に区画しただけであれば、その先（接続部）では、対の導体が大きく広がって上記の問題が生じる。 Here, if the conductor is exposed by stripping the insulation core wire before reaching the partition wall, the conductor diameter is considerably smaller (thin) compared to the insulation core wire, so the spread of the conductor at the connection portion is also small, There is a fear of contact between the conductors before reaching the partition wall, and it is not preferable that the conductor is exposed by stripping the insulation core wire before reaching the partition wall.
On the other hand, since the insulation core wire is thicker than the conductor by the thickness of the insulation coating, if the pair of insulation core wires is simply partitioned by a partition wall, the pair of conductors greatly expands beyond that (connection portion). This causes the above problems.

これに対し、その隔壁の上縁を出力ケーブルに向かって下り勾配に傾斜させるとともに、出力ケーブルの絶縁芯線をその下り勾配の上縁を通って接続部に導けば、絶縁芯線に隔壁が広がり作用を及ぼすのは、その絶縁芯線の最外径部分が隔壁に触れた後であり、隔壁の上縁が出力ケーブルに向かって下り勾配に傾斜し、かつその厚みが出力ケーブルに向かって徐々に薄くなっておれば、その隔壁が絶縁芯線の最外径部分に触れる位置は接続部に近づき、絶縁芯線の無理のない安定した軌跡を得ることができ、対の導体の広がりも抑えられる（図４（ａ）参照）。 On the other hand, if the upper edge of the partition wall is inclined downward toward the output cable, and the insulation core wire of the output cable is led to the connection portion through the upper edge of the downward slope, the partition wall spreads to the insulation core wire. It is after the outermost diameter part of the insulation core wire touches the partition wall, the upper edge of the partition wall is inclined downward toward the output cable, and the thickness gradually decreases toward the output cable. In this case, the position where the partition wall touches the outermost diameter portion of the insulated core wire approaches the connecting portion, and a reasonable and stable trajectory of the insulated core wire can be obtained, and the spread of the pair of conductors can be suppressed (FIG. 4). (See (a)).

一方、隔壁の長さ（図４の左右方向長さ）を短くすれば、対の導体の広がりは抑えられるが、隔壁が短い分、絶縁芯線の被覆の剥ぎ長さ（露出導体長さ）の制約が生じ、例えば、隔壁が短くなれば、対の導体の接触を防ぐ必要から、露出導体長さはその隔壁長さより長くすることができない。通常、露出導体の長さが長いと、絶縁芯線の導体がリード端子に単に臨んでいる（対向している）だけで十分な接触長さを確保できるが、露出導体の長さが短いと、両者が単に臨んでいるだけでは、その十分な接触長さを確保できず、その十分な接触長さを得るために、導体とリード端子の正確な位置合わせの作業が必要となる等の接続作業が煩雑になったり、その位置合わせが不十分であると、接続強度が弱くなったりする等の問題が生じる。 On the other hand, if the length of the partition wall (the length in the left-right direction in FIG. 4) is shortened, the spread of the pair of conductors can be suppressed, but the length of the insulation core wire coating stripped length (exposed conductor length) is reduced due to the shorter partition wall For example, if the partition wall is shortened, the exposed conductor length cannot be longer than the partition wall length because it is necessary to prevent contact between the pair of conductors. Usually, when the length of the exposed conductor is long, a sufficient contact length can be ensured by simply facing (opposing) the conductor of the insulated core wire to the lead terminal, but when the length of the exposed conductor is short, Connection work such as the need for accurate alignment of conductors and lead terminals to obtain sufficient contact length is not possible if both sides are merely facing. However, if the positioning becomes inadequate or the alignment is insufficient, problems such as weak connection strength may occur.

また、出力ケーブルの絶縁芯線をリード端子にセットする際、通常、隔壁の上方から隔壁を境にしてリード端子に絶縁芯線を接触させるようにするが、その際、隔壁の出力ケーブル側の端が出ていると（図９（ｂ）の符号ｅのように突出していると）、その突部が絶縁芯線の案内の邪魔となって作業性が悪い。
これに対し、隔壁の上縁が出力ケーブルに向かって下り勾配に傾斜しておれば、その突部もなく、その傾斜した上縁がその絶縁芯線の案内機能をなすため、絶縁芯線をリード端子に円滑にセットできる（図４（ｂ）参照）。なお、図１、図２、図４（ｂ）、図９（ｂ）では、隔壁２２の上縁は下側となっている。 Also, when setting the insulation core wire of the output cable to the lead terminal, the insulation core wire is usually brought into contact with the lead terminal from above the partition wall with the partition wall as a boundary. If it protrudes (if it protrudes as indicated by symbol e in FIG. 9B), the protruding portion interferes with the guidance of the insulating core wire, resulting in poor workability.
On the other hand, if the upper edge of the partition wall is inclined downward toward the output cable, there is no protrusion, and the inclined upper edge functions as a guide for the insulated core wire. Can be set smoothly (see FIG. 4B). In addition, in FIG.1, FIG.2, FIG.4 (b) and FIG.9 (b), the upper edge of the partition 22 is a lower side.

この発明は、以上のようにして、出力ケーブルの対の導体の広がりを抑制したので、対のリード端子と対の導体の接続において、リード端子と導体の接触面積を十分に確保でき、有効な接続強度を得られる。また、出力ケーブルの絶縁芯線をリード端子に円滑にセットできる。 Since the present invention suppresses the spread of the pair of conductors of the output cable as described above, a sufficient contact area between the lead terminal and the conductor can be secured in the connection between the pair of lead terminals and the pair of conductors. Connection strength can be obtained. In addition, the insulated core wire of the output cable can be set smoothly on the lead terminal.

この発明の実施形態としては、被検出体の回転による磁界変動を検出し電気信号に変換する回転検出素子をホルダーに取付け、前記回転検出素子からその回転検出素子の対のリード端子を介して出力ケーブルを引き出した回転検出センサにおいて、前記対のリード端子と出力ケーブルの対の導体の両接続部における前記ホルダーに前記両接続部を隔てる隔壁を形成し、その隔壁の上縁を前記出力ケーブルに向かって下り勾配に傾斜させるとともに、その隔壁の厚みを出力ケーブルに向かって徐々に薄くして、出力ケーブルの絶縁芯線をその下り勾配の上縁を通って前記接続部に導いた構成を採用することができる。
その傾斜度合は、隔壁の絶縁性や沿面絶縁距離等を考慮して適宜に設定する。 As an embodiment of the present invention, a rotation detection element that detects a magnetic field variation due to rotation of a detected object and converts it into an electrical signal is attached to a holder, and output from the rotation detection element via a pair of lead terminals of the rotation detection element In the rotation detection sensor from which the cable is pulled out, a partition wall is formed in the holder in both connection portions of the pair of lead terminals and the conductor of the output cable pair, and an upper edge of the partition wall is formed on the output cable. Adopting a structure in which the partition wall is gradually decreased toward the output cable, and the insulation core of the output cable is led to the connecting portion through the upper edge of the downward gradient. be able to.
The degree of inclination is appropriately set in consideration of the insulating properties of the partition walls, the creeping insulation distance, and the like.

この構成において、上記接続部における上記対の導体のそれぞれの側方のホルダーに、前記導体の側方への移動を阻止する側壁を形成すれば、その側壁により、対の導体の移動は規制されるため、導体の位置決めを確実にでき、リード端子と導体の接触面積を確実に確保できる。 This configuration smell Te, the respective side of the holder conductor of the pair in the upper Symbol connecting portion, by forming the side walls preventing movement of the side of the conductor, by its sidewall, the movement of the pair of conductors Since it is regulated, the positioning of the conductor can be ensured, and the contact area between the lead terminal and the conductor can be reliably ensured.

一実施例を図１乃至図３に示し、この実施例の車輪速センサＰは、図７、図８に示した車輪速センサＰと同様に、検出部ａを、磁界変動を検出するホールＩＣ１１から平行にリード片（リード端子）１２を導出し、その両リード片１２、１２間にコンデンサ等の電子部品１３を設けたものであり、上述と同一符号は同一物を示す。 1 to FIG. 3, the wheel speed sensor P of this embodiment is similar to the wheel speed sensor P shown in FIG. 7 and FIG. A lead piece (lead terminal) 12 is led out in parallel, and an electronic component 13 such as a capacitor is provided between the two lead pieces 12, 12.

樹脂成型品のホルダー２０は、図２、図３に示すように、本体を成す基部２０ａと蓋部２０ｂとからなり、その基部２０ａにホールＩＣ１１の嵌合溝１４が形成されている。リード片１２の嵌合溝も形成することができる。そのホールＩＣ用嵌合溝１４は、ホールＩＣ１１に嵌合によるストレスが生じないように、僅かな間隙をもってホールＩＣ１１が嵌る。蓋部２０ｂは、基部２０ａのフック２１ａが嵌合孔２１ｂに嵌ることによって基部２０ａに取付けられる。 As shown in FIGS. 2 and 3, the resin molded product holder 20 includes a base portion 20a and a lid portion 20b constituting a main body, and a fitting groove 14 for the Hall IC 11 is formed in the base portion 20a. A fitting groove of the lead piece 12 can also be formed. The Hall IC fitting groove 14 fits the Hall IC 11 with a slight gap so that stress due to fitting does not occur in the Hall IC 11. The lid portion 20b is attached to the base portion 20a by fitting the hook 21a of the base portion 20a into the fitting hole 21b.

上記フック２１ａはホルダー基部２０ａの後方の片状部に形成されており、その基部２０ａに検出部ａが実装されると、ホールＩＣ１１からの対のリード片１２、１２間に前記片状部が位置してその両リード片１２、１２の隔壁２２となり、この隔壁２２の両側がリード片１２、１２への出力ケーブル６の対の可撓導体６ｂ、６ｂの接続部９、９となる。
その隔壁２２は、その上縁（図１において下縁）が出力ケーブル６に向かって下り勾配の傾斜をしているとともに、同方向に向かって徐々に薄くなっている。 The hook 21a is formed in a piece on the rear side of the holder base 20a. When the detection part a is mounted on the base 20a, the piece is formed between the pair of lead pieces 12 and 12 from the Hall IC 11. It becomes the partition 22 of both the lead pieces 12 and 12 and the both sides of this partition 22 become the connection parts 9 and 9 of the pair of flexible conductors 6b and 6b of the output cable 6 to the lead pieces 12 and 12.
The upper edge (lower edge in FIG. 1) of the partition wall 22 is inclined downward toward the output cable 6 and gradually becomes thinner in the same direction.

この隔壁２２により区画された接続部９、９は、出力ケーブル６の各絶縁芯線６ａ、６ａがその下り勾配の上縁２２ａを通って接続部に導かれた後、その絶縁芯線６ａ、６ａの絶縁被覆が剥がされて露出した可撓導体６ｂ、６ｂが半田付け、抵抗溶接等によりそれぞれリード片１２、１２に接続される。 The connection portions 9 and 9 partitioned by the partition wall 22 are connected to the insulation core wires 6a and 6a after the insulation core wires 6a and 6a of the output cable 6 are guided to the connection portion through the upper edge 22a of the downward gradient. The flexible conductors 6b and 6b exposed by peeling off the insulation coating are connected to the lead pieces 12 and 12 by soldering, resistance welding or the like, respectively.

このように、出力ケーブル６の絶縁芯線６ａ、６ａをその下り勾配の上縁２２ａを通って接続部９、９に導けば、絶縁芯線６ａ、６ａに隔壁２２が広がり作用を及ぼすのは、その絶縁芯線６ａ、６ａの最外径部分が隔壁２２に触れた後であり、図４（ｂ）に示すように、隔壁２２の上縁２２ａが出力ケーブル６に向かって下り勾配に傾斜しておれば、その隔壁２２が絶縁芯線６ａ、６ａの最外径部分に触れる位置は接続部９に近づき、同図（ａ）に示すように対の可撓導体６ｂ、６ｂの広がりも抑えられる。このため、対のリード片１２、１２と対の可撓導体６ｂ、６ｂの接続において、リード片１２、１２と可撓導体６ｂ、６ｂの接触面積を十分に確保でき、有効な接続強度を得られる。 Thus, if the insulating core wires 6a and 6a of the output cable 6 are led to the connecting portions 9 and 9 through the upper edge 22a of the descending slope, the partition wall 22 spreads and acts on the insulating core wires 6a and 6a. After the outermost diameter portion of the insulating core wires 6a, 6a touches the partition wall 22, the upper edge 22a of the partition wall 22 is inclined downward toward the output cable 6 as shown in FIG. 4 (b). For example, the position where the partition wall 22 touches the outermost diameter portion of the insulating core wires 6a and 6a approaches the connecting portion 9, and the spread of the pair of flexible conductors 6b and 6b is suppressed as shown in FIG. Therefore, in the connection between the pair of lead pieces 12 and 12 and the pair of flexible conductors 6b and 6b, a sufficient contact area between the lead pieces 12 and 12 and the flexible conductors 6b and 6b can be secured, and an effective connection strength can be obtained. It is done.

また、図４（ａ）に示すように、隔壁２２の厚みは出力ケーブル６に向かって徐々に薄くなっているため（両側面２２ｂが出力ケーブル６に向かって徐々に近づく傾斜面となっているため）、両絶縁芯線６ａ、６ａの広がり度合もより抑制され、リード片１２、１２と可撓導体６ｂ、６ｂの接触面積をより十分に確保でき、有効な接続強度を得られる。 Further, as shown in FIG. 4A, the thickness of the partition wall 22 gradually decreases toward the output cable 6 (both side surfaces 22b are inclined surfaces that gradually approach toward the output cable 6. For this reason, the degree of spread of both the insulated core wires 6a and 6a is further suppressed, the contact area between the lead pieces 12 and 12 and the flexible conductors 6b and 6b can be sufficiently secured, and an effective connection strength can be obtained.

さらに、接続部９、９における対の可撓導体６ｂ、６ｂのそれぞれの側方のホルダー２０には側壁２３がそれぞれ設けられており、この側壁２３により、対の可撓導体６ｂ、６ｂの側方（図４（ａ）における上方又は下方）への移動は規制され、可撓導体６ｂ、６ｂの位置決めが確実になされて、リード片１２、１２と可撓導体６ｂ、６ｂの接触面積は確実に確保される。 Further, a side wall 23 is provided on each side holder 20 of the pair of flexible conductors 6b and 6b in the connecting portions 9 and 9, and the side wall 23 allows the side of the pair of flexible conductors 6b and 6b. Movement (upward or downward in FIG. 4A) is restricted, the positioning of the flexible conductors 6b and 6b is ensured, and the contact area between the lead pieces 12 and 12 and the flexible conductors 6b and 6b is reliable. Secured.

また、出力ケーブル６の両絶縁芯線６ａ、６ａをリード片１２、１２にセットする際、まず、両絶縁芯線６ａ、６ａ先端の露出可撓導体６ｂ、６ｂを側壁２３で形成されるポケット部（側壁２３と隔壁２２で囲まれたスペース）に挿し込んで位置決めし、その後、絶縁芯線６ａ、６ａを隔壁２２を挟むようにその隔壁２２に沿わせる。
その露出可撓導体６ｂ、６ｂの先端をポケット部に挿し込む作用と、絶縁芯線６ａ、６ａの間に隔壁２２が入り込む（絶縁芯線６ａ、６ａの間に隔壁２２を挟む）作用は殆ど時間差なく連続して行われる。このため、図９に示す隔壁２２の形状（突部ｅを有する形状）であると、両者の作用が殆ど同時になされることとなるため、露出可撓導体６ｂ、６ｂの先端がポケット部から外れて、隔壁２２により絶縁芯線６ａ、６ａが大きく広がる恐れが多い。 When setting both insulated core wires 6a, 6a of the output cable 6 to the lead pieces 12, 12, first, the exposed flexible conductors 6b, 6b at the ends of the insulated wires 6a, 6a are pocket portions formed by the side wall 23 ( And inserted into a space surrounded by the side wall 23 and the partition wall 22, and then the insulating core wires 6 a and 6 a are placed along the partition wall 22 so as to sandwich the partition wall 22.
The effect of inserting the tips of the exposed flexible conductors 6b and 6b into the pocket portion and the effect of the partition wall 22 entering between the insulated core wires 6a and 6a (with the partition wall 22 sandwiched between the insulated core wires 6a and 6a) have almost no time difference. It is done continuously. For this reason, if the shape of the partition wall 22 (the shape having the protrusions e) shown in FIG. 9 is used, the actions of both are performed almost simultaneously, so that the tips of the exposed flexible conductors 6b and 6b come off the pocket portion. Therefore, the insulating core wires 6a and 6a are likely to be greatly expanded by the partition wall 22.

これに対し、隔壁２３の上縁２２ａが出力ケーブル６に向かって下り勾配に傾斜していると（図９（ｂ）の突部ｅの形状でないと）、露出可撓導体６ｂ、６ｂの先端をポケット部に挿し込む作用と、絶縁芯線６ａ、６ａの間に隔壁２２が入り込む（絶縁芯線６ａ、６ａの間に隔壁２２を挟む）作用は、図９の態様に比べれば、かなりの時間差を持ってなされ、露出可撓導体６ｂ、６ｂの先端がポケット部に挿し込まれて安定した後、絶縁芯線６ａ、６ａの間に隔壁２２が入り込むこととなり、絶縁芯線６ａ、６ａの広がりも極力抑えられる。また、隔壁２２の傾斜した上縁２２ａがその絶縁芯線６ａ、６ａの案内機能を行うため（絶縁芯線６ａをガイドするため）、その絶縁芯線６ａ、６ａの間に隔壁２２が入り込む作用も円滑になされる。
このように、絶縁芯線６ａ、６ａの広がりが極力抑制されて隔壁２２を挟むようにリード片１２、１２の上にセットされれば、露出可撓導体６ｂ、６ｂとリード片１２、１２の接触面積も広くなり、安定した接続作業を行うことができる。 On the other hand, when the upper edge 22a of the partition wall 23 is inclined downward toward the output cable 6 (unless the shape of the protrusion e in FIG. 9B), the tips of the exposed flexible conductors 6b and 6b. 9 and the operation of inserting the partition wall 22 between the insulating core wires 6a and 6a (with the partition wall 22 sandwiched between the insulating core wires 6a and 6a) have a considerable time difference compared to the embodiment of FIG. Then, after the tips of the exposed flexible conductors 6b and 6b are inserted into the pocket portion and stabilized, the partition wall 22 enters between the insulated core wires 6a and 6a, and the spread of the insulated core wires 6a and 6a is suppressed as much as possible. It is done. Further, since the inclined upper edge 22a of the partition wall 22 performs a function of guiding the insulated core wires 6a and 6a (to guide the insulated core wire 6a), the function of the partition wall 22 entering between the insulated core wires 6a and 6a is also smooth. Made.
As described above, if the insulating core wires 6a and 6a are set on the lead pieces 12 and 12 so that the spreading of the insulating core wires 6a and 6a is suppressed as much as possible, the contact between the exposed flexible conductors 6b and 6b and the lead pieces 12, 12 The area is increased, and stable connection work can be performed.

ホルダー２０にセットされた検出部ａのリード片１２、１２に出力ケーブル６が接続されれば、図１に示すように、固定ブラケット１０を埋設してホルダー２０、検出部ａ、出力ケーブル６の一部を樹脂被覆４して、車輪速センサＰを得る。
この車輪速センサＰは、磁石３を有さないため、被検出体Ｂには、その外周縁にＳ極とＮ極を周方向に交互に連続するように着磁した磁石製エンコーダを使用する。 If the output cable 6 is connected to the lead pieces 12 and 12 of the detection unit a set in the holder 20, as shown in FIG. 1, the fixing bracket 10 is embedded and the holder 20, the detection unit a and the output cable 6 are connected. A part is resin-coated 4 to obtain a wheel speed sensor P.
Since the wheel speed sensor P does not have the magnet 3, a magnetic encoder magnetized so that the S pole and the N pole are alternately continued in the circumferential direction on the outer peripheral edge thereof is used for the detection object B. .

ホルダー２０への検出部ａの取付け態様としては、図５、図６に示すように、リード片１２が真っ直ぐなどと、この発明が採用できる限りにおいて任意である。 As shown in FIGS. 5 and 6, the detection part a can be attached to the holder 20 as long as the lead piece 12 is straight as long as the present invention can be adopted.

なお、実施例は、ホルダー２０全体を直接に樹脂被覆４をした車輪速センサＰであるが、図７に示すように、ホルダー２０をケーシング１に嵌めて樹脂被覆４したものにおいても、この発明は採用できる。また、実施例は車輪速センサであったが、他の回転検出センサにおいても、この発明を採用し得ることは勿論である。 The embodiment is a wheel speed sensor P in which the entire holder 20 is directly coated with the resin coating 4. However, as shown in FIG. Can be adopted. In addition, although the embodiment is a wheel speed sensor, it is needless to say that the present invention can be adopted in other rotation detection sensors.

一実施例の要部切断正面図Main part cutting front view of one embodiment 同実施例の検出部の分解斜視図The exploded perspective view of the detection part of the embodiment 同ホルダーの分解斜視図Exploded perspective view of the holder 同実施例の作用図であり、（ａ）は平面図、（ｂ）は正面図It is an effect | action figure of the Example, (a) is a top view, (b) is a front view 他の実施例の分解斜視図Exploded perspective view of another embodiment 他の実施例の斜視図Perspective view of another embodiment 従来例の要部切断正面図Cutaway front view of the main part of the conventional example 同従来例の検出部の分解斜視図The exploded perspective view of the detection part of the conventional example 同従来例の作用図であり、（ａ）は平面図、（ｂ）は正面図It is an operation view of the conventional example, (a) is a plan view, (b) is a front view

符号の説明Explanation of symbols

２、２０ホルダー
４樹脂被覆
６出力ケーブル
６ａ出力ケーブルの絶縁芯線
６ｂ出力ケーブルの可撓導体
９回転検出素子のリード端子と出力ケーブルの可撓導体との接続部
１０固定ブラケット
１１回転検出素子（ホールＩＣ）
１２リード端子（リード片）
１３電子部品
１４ホールＩＣの嵌合溝
ａ検出部
Ｐ車輪速センサ
Ｂ被検出体 2, 20 Holder 4 Resin coating 6 Output cable 6a Insulated core 6b of output cable Flexible conductor 9 of output cable Connection portion 10 between lead terminal of rotation detecting element and flexible conductor of output cable 10 Fixing bracket 11 Rotation detecting element (hole) IC)
12 Lead terminal (lead piece)
13 Electronic component 14 Hall IC fitting groove a Detector P Wheel speed sensor B Detected object

Claims

被検出体（Ｂ）の回転による磁界変動を検出して電気信号に変換する回転検出素子（１１）をホルダー（２０）に取付け、前記回転検出素子（１１）からその回転検出素子（１１）の対のリード端子（１２、１２）を介して出力ケーブル（６）を引き出した回転検出センサ（Ｐ）において、
上記対のリード端子（１２、１２）と出力ケーブル（６）の対の導体（６ｂ、６ｂ）との両接続部（９、９）における上記ホルダー（２０）に、前記両接続部（９、９）を隔てる隔壁（２２）を形成し、その隔壁（２２）の上縁（２２ａ）を前記出力ケーブル（６）に向かって下り勾配に傾斜させるとともに、その隔壁（２２）の厚みが前記出力ケーブル（６）に向かって徐々に薄くなっており、前記出力ケーブル（６）の絶縁芯線（６ａ、６ａ）をその下り勾配の上縁（２２ａ）を通って前記接続部（９、９）に導いたことを特徴とする回転検出センサ。 A rotation detection element (11) that detects a magnetic field variation due to rotation of the detection object (B) and converts it into an electric signal is attached to a holder (20), and the rotation detection element (11) is connected to the rotation detection element (11). In the rotation detection sensor (P) that has pulled out the output cable (6) through the pair of lead terminals (12, 12),
The two connection portions (9, 9) are connected to the holder (20) in both connection portions (9, 9) between the pair of lead terminals (12, 12) and the pair of conductors (6b, 6b) of the output cable (6). 9) is formed, and the upper edge (22a) of the partition wall (22) is inclined downward toward the output cable (6), and the thickness of the partition wall (22) is set to the output power. The insulation core wire (6a, 6a) of the output cable (6) is gradually thinned toward the cable (6) and passes through the upper edge (22a) of the descending slope to the connection portion (9, 9). A rotation detection sensor characterized by being guided.

上記両接続部（９、９）における上記対の導体（６ｂ、６ｂ）のそれぞれの側方のホルダー（２０）に、前記導体（６ｂ、６ｂ）の側方への移動を阻止する側壁（２３、２３）を設けたことを特徴とする請求項１に記載の回転検出センサ。 Side walls (23) that prevent lateral movement of the conductors (6b, 6b) are placed on the respective side holders (20) of the pair of conductors (6b, 6b) in the connection portions (9, 9). 23). The rotation detection sensor according to claim 1, wherein the rotation detection sensor is provided.