JP2008209198A - Rotation detection sensor - Google Patents

Rotation detection sensor Download PDF

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JP2008209198A
JP2008209198A JP2007045409A JP2007045409A JP2008209198A JP 2008209198 A JP2008209198 A JP 2008209198A JP 2007045409 A JP2007045409 A JP 2007045409A JP 2007045409 A JP2007045409 A JP 2007045409A JP 2008209198 A JP2008209198 A JP 2008209198A
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relay terminal
terminal
lead terminal
lead
holder
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JP4781297B2 (en
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Kyungwoo Kim
京佑 金
Tadashi Hattori
服部　　正
Takayuki Suzuki
崇之 鈴木
Shigenobu Okusaka
茂宣 奥坂
Yasuo Hashimoto
康生 橋本
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Sumiden Electronics Ltd
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Sumiden Electronics Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent a lead terminal and a relay terminal from bending, in resistance weld connection between the lead terminal 12 and the relay terminal 5. <P>SOLUTION: This rotation detection sensor P is used for detecting magnetic field fluctuation owing to the rotation of a detected body B, converting it into an electric signal, and outputting it. At a connection part between the lead terminal 12 of a detection part (a) and the relay terminal 5, the relay terminal is supported/fixed with the both sides thereof embedded in holders 2 (2b and 2e). When the both sides of the relay terminal are supported/fixed, a both-end supported beam state is brought about and the bending of the relay terminal is far smaller than in a cantilever beam state. Assuming that a lengthwise rib is formed in at least either the lead terminal or the relay terminal, its lengthwise flexural resistance is improved while the relay terminal, etc. are furthermore prevented from bending. The prevention of the bending prevents, to the utmost, the lead terminal and the relay terminal from making contact with each other at parts other than the connection part (projection 9). The resistance weld connection can be performed with electric current concentrated on the projection 9, making it possible to obtain sufficient connection strength. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、自動車の車輪速センサ、エンジン回転数センサなど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 an automobile wheel speed sensor or an engine speed sensor.

例えば、車輪速センサＰの一例として、図５に示すように、その検出部ａが樹脂製ホルダー２に取付けられ（設けられ）、有蓋筒状ケーシング１内にその開口１ａからホルダー２を挿入して検出部ａを実装するとともに、そのホルダー２の基部２ａをケーシング開口部１ａに嵌合し、検出部ａから対の中継端子５を前記ホルダー基部２ａ端面から導出してケーブル６に接続し、ケーシング開口部１ａとホルダー露出部の全周を両者に亘り前記中継端子５及びケーブル６の一部を埋設して樹脂被覆４した構成のものがある（特許文献１ 図２等参照）。
特開２００６−３００７５号公報 For example, as an example of the wheel speed sensor P, as shown in FIG. 5, the detection portion a is attached (provided) to the resin holder 2, and the holder 2 is inserted into the covered cylindrical casing 1 from the opening 1 a. Mounting the detection part a, fitting the base 2a of the holder 2 to the casing opening 1a, connecting the pair of relay terminals 5 from the detection part a from the end face of the holder base 2a and connecting to the cable 6, There is a configuration in which a part of the relay terminal 5 and the cable 6 are embedded in the casing opening 1a and the entire exposed portion of the holder so that the resin coating 4 is embedded (see, for example, FIG. 2 of Patent Document 1).
JP 2006-30075 A

この車輪速センサＰは、その検出部ａが、磁気検出用ホールＩＣ１１及びそのリード端子１２等から成り（詳細は、本願の実施形態の図１〜２及び特許文献１参照）、回転する被検出体Ｂに対向して取付金具１０を介して車両の取付部材に取付けられ（設置され）、被検出体Ｂの回転による磁界変動を検出部ａで検出して電気信号に変換し、その信号は、中継端子５、ケーブル６を介して外部の制御機器に伝えられる。被検出体Ｂには、周縁部に歯車状の歯を設けた強磁性体パルサーリングや、周縁部表面にＳ極とＮ極が周方向に交互に連続して現れるように着磁された磁石パルサーリングが使用される。   In the wheel speed sensor P, the detection part a includes a magnetic detection Hall IC 11 and a lead terminal 12 thereof (for details, refer to FIGS. 1 and 2 of the embodiment of the present application and Patent Document 1), and is to be detected. It is mounted (installed) on the mounting member of the vehicle through the mounting bracket 10 so as to face the body B, and the magnetic field fluctuation due to the rotation of the detected body B is detected by the detection unit a and converted into an electrical signal. The signal is transmitted to an external control device via the relay terminal 5 and the cable 6. The detected body B has a ferromagnetic pulsar ring provided with gear-like teeth at the peripheral edge, or a magnet magnetized so that S and N poles appear alternately and continuously on the peripheral surface. Pulsar ring is used.

この車輪速センサＰにおいて、その検出部ａのリード端子１２と中継端子５との接続は、通常、図６に示すように、上記ホルダー２の開口する空洞部３において、片状リード端子１２と片状中継端子５のそれぞれの接続部を重ねた状態（対向させた状態）とし、その重なった両接続部を溶接することによって行われ、その溶接接続に抵抗溶接を採用する場合がある。   In this wheel speed sensor P, the connection between the lead terminal 12 of the detection part a and the relay terminal 5 is normally connected to the piece-like lead terminal 12 in the hollow part 3 where the holder 2 is opened as shown in FIG. The connecting portions of the piece-like relay terminals 5 are overlapped (opposed), and the overlapping connecting portions are welded, and resistance welding may be employed for the welding connection.

この抵抗溶接は、同図に示すように、片状リード端子１２と片状中継端子５の重なった接続部の両側面（上下面）から対の電極Ｄ、Ｄを押し付け、両電極Ｄ、Ｄ間に電流を流して、リード端子１２と中継端子５の接点部をその電気抵抗熱で溶かして接続する。
このとき、円滑な抵抗溶接を行うためには、その接続部に高い電流密度を確保する必要がある。このため、図７に示すように、リード端子１２と中継端子５の一方、例えば、中継端子５に突起（プロジェクション）９を形成し、この突起９とリード端子１２を点接触させて高い電流密度を得るようにしている。 In this resistance welding, as shown in the figure, the pair of electrodes D, D are pressed from both side surfaces (upper and lower surfaces) of the connecting portion where the piece-like lead terminal 12 and the piece-like relay terminal 5 overlap each other. A current is passed between them, and the contact portions of the lead terminal 12 and the relay terminal 5 are melted and connected by the electric resistance heat.
At this time, in order to perform smooth resistance welding, it is necessary to ensure a high current density at the connecting portion. For this reason, as shown in FIG. 7, a projection (projection) 9 is formed on one of the lead terminal 12 and the relay terminal 5, for example, the relay terminal 5, and the projection 9 and the lead terminal 12 are brought into point contact so as to have a high current density. Like to get.

しかしながら、車輪速センサＰの小型化に伴い、リード端子１２や中継端子５に０．３ｍｍ厚以下の金属片が使用されるようになり、その薄い金属片からなるリード端子１２及び中継端子５であると、図７に示すように、両電極Ｄ、Ｄによってその接続部を挟んだ際、リード端子１２及び中継端子５の一方又は両者が撓んで、一方の電極Ｄ側に傾く場合がある。
このように傾くと、突起９以外の部分、例えば、同図のｃ点においても、リード端子１２と中継端子５とが接触し、その接触部ｃからも電流が流れることとなって、接続部９の電流密度が高くならない。このため、安定した抵抗溶接がなされず、十分な接続強度が得られない恐れがある。 However, with the miniaturization of the wheel speed sensor P, a metal piece having a thickness of 0.3 mm or less is used for the lead terminal 12 and the relay terminal 5, and the lead terminal 12 and the relay terminal 5 made of the thin metal piece are used. As shown in FIG. 7, when the connecting portion is sandwiched between the electrodes D and D, one or both of the lead terminal 12 and the relay terminal 5 may bend and tilt toward one electrode D side.
When tilted in this way, the lead terminal 12 and the relay terminal 5 come into contact with each other at a portion other than the protrusion 9, for example, point c in FIG. The current density of 9 does not increase. For this reason, stable resistance welding is not performed, and sufficient connection strength may not be obtained.

この発明は、以上の実情に鑑み、リード端子と中継端子の溶接接続において、そのリード端子と中継端子の撓みを抑制することを課題とする。   This invention makes it a subject to suppress the bending of the lead terminal and a relay terminal in the welding connection of a lead terminal and a relay terminal in view of the above situation.

上記課題を達成するために、この発明の一手段は、上記接続部の両側において、中継端子、リード端子をホルダーでもって支持固定することとしたのである。
中継端子等の両側がホルダーに支持固定されておれば、両持ち梁状となって、図５〜図７に示す片持ち梁状に比べれば、中継端子の撓みは遙かに小さい（少ない）。このため、中継端子とリード端子は接続部以外の接触が極力抑制され、安定した溶接接続を行うことができる。 In order to achieve the above object, one means of the present invention is to support and fix the relay terminal and the lead terminal with a holder on both sides of the connecting portion.
If both sides of the relay terminal and the like are supported and fixed to the holder, it becomes a doubly-supported beam shape, and the deflection of the relay terminal is much smaller (less) compared to the cantilever shape shown in FIGS. . For this reason, contact between the relay terminal and the lead terminal is suppressed as much as possible, and a stable welding connection can be performed.

この手段の発明の構成としては、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して出力する検出部と、その検出部を取り付けたホルダーと、前記検出部の片状リード端子に接続されて前記ホルダーに支持された片状中継端子と、その中継端子に接続されて外部に導出されたケーブルとからなる回転検出センサにおいて、前記リード端子と中継端子はホルダーの開口する空洞部において溶接接続され、中継端子はその空洞部の両側のホルダーに埋設されて支持固定されている構成を採用する。   As a configuration of the invention of this means, a detection unit that detects a magnetic field variation due to rotation of the detected object, converts it into an electric signal and outputs it, a holder attached with the detection unit, and a piece-like lead terminal of the detection unit In a rotation detection sensor comprising a piece-like relay terminal connected and supported by the holder and a cable connected to the relay terminal and led out to the outside, the lead terminal and the relay terminal are in a hollow portion where the holder opens. A configuration is adopted in which the relay terminal is embedded by welding and supported and fixed in holders on both sides of the cavity.

この構成において、中継端子の空洞部両側の支持固定は、埋設に拘わらず、他の手段、例えば嵌め込み等を採用することができる。また、中継端子に代えて、又は中継端子と共に、リード端子を上記空洞部の両側のホルダーに埋設支持したり、他の支持手段によって支持固定したりすることもできる。   In this configuration, other means, such as fitting, can be employed for supporting and fixing the both sides of the hollow portion of the relay terminal regardless of the embedding. Further, instead of the relay terminal or together with the relay terminal, the lead terminal can be embedded and supported in holders on both sides of the hollow portion, or can be supported and fixed by other support means.

上記課題を達成するためのこの発明の他の手段は、上記リード端子と中継端子の少なくとも一方を、その長さ方向のリブが形成されたものとしたのである。
長さ方向のリブを有すれば、その長さ方向における耐屈曲性が向上するため、図５〜図７に示す、リブを有しない片持ち梁状に比べれば、中継端子等の撓みは遙かに小さい（少ない）。このため、同様に、中継端子とリード端子は接続部以外の接触が極力抑制され、安定した溶接接続を行うことができる。
そのリブには、突条（図４ａ参照）のみならず、長さ方向に亘って屈曲させた場合のその屈曲条（同図ｂ、ｃ参照）も含む。 Another means of the present invention for achieving the above object is that at least one of the lead terminal and the relay terminal is formed with a rib in its length direction.
If the rib in the length direction is provided, the bending resistance in the length direction is improved. Therefore, the bending of the relay terminal or the like is less than the cantilever shape having no rib shown in FIGS. It is small (less). For this reason, similarly, contact other than a connection part is suppressed as much as possible between the relay terminal and the lead terminal, and stable welding connection can be performed.
The rib includes not only the protrusion (see FIG. 4a) but also the bending line (see FIGS. B and c) when bent over the length direction.

この手段の発明の構成としては、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して出力する検出部と、その検出部を取り付けたホルダーと、検出部のリード端子に接続されてホルダーに支持された中継端子と、その中継端子に接続されて外部に導出されたケーブルとからなる回転検出センサＰにおいて、前記リード端子と中継端子の少なくとも一方には、その長さ方向のリブが形成されている構成を採用する。
このリブを有するリード端子、中継端子は、その両端をホルダーに支持固定する上記構成の車輪速センサにも採用することができる。 As a configuration of the invention of this means, a detection unit that detects a magnetic field variation due to rotation of the detected object, converts it into an electric signal and outputs it, a holder attached with the detection unit, and a lead terminal of the detection unit are connected. In the rotation detection sensor P including a relay terminal supported by the holder and a cable connected to the relay terminal and led to the outside, at least one of the lead terminal and the relay terminal has a rib in the length direction. The formed configuration is adopted.
The lead terminal and the relay terminal having the rib can also be employed in the wheel speed sensor having the above-described configuration in which both ends thereof are supported and fixed to the holder.

上記のこの発明の各手段は、リード端子と中継端子がそれぞれ０．３ｍｍ厚以下の金属片からなっている場合に有効である。
０．３ｍｍ厚以下の金属片は撓み易いため、その金属片をリード端子、中継端子に採用すると、溶接時に撓んで、溶接不良が生じやすいため、その撓みを防止する点から有効だからである。特に、抵抗溶接においては、その接続部が点接触で行う必要があるため、さらに有効な手段となる。このとき、そのリード端子と中継端子の接続部の一方に突起を設け、この突起でもって点接触させてその抵抗溶接時の電流密度を高めるためことが好ましい。 Each means of the present invention described above is effective when the lead terminal and the relay terminal are made of metal pieces each having a thickness of 0.3 mm or less.
This is because a metal piece having a thickness of 0.3 mm or less is easy to bend, and if the metal piece is used as a lead terminal or a relay terminal, it is bent at the time of welding and easily causes poor welding. In particular, resistance welding is a more effective means because the connecting portion needs to be point-contacted. At this time, it is preferable to provide a protrusion on one of the connecting portions of the lead terminal and the relay terminal, and to make point contact with the protrusion to increase the current density during resistance welding.

この発明は、以上のように構成して、リード端子と中継端子の少なくとも一方を撓み難くしたので、そのリード端子と中継端子の溶接接続を安定して行うことができ、十分な接続強度を得ることができる。   Since the present invention is configured as described above and makes it difficult for at least one of the lead terminal and the relay terminal to bend, the welding connection between the lead terminal and the relay terminal can be stably performed, and sufficient connection strength is obtained. be able to.

一実施形態を図１乃至図３に示し、この実施形態の車輪速センサＰは、従来と同様に、検出部ａを、磁界変動を検出するホールＩＣ等の回転検出子１１から平行にリード片（片状リード端子）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。リード片１２は０．２ｍｍ厚のＫ６２（Ｃ１８０９０）製金属片、中継端子５は０．３ｍｍ厚の同Ｃ２６００製金属片からなる。図中、ＥはホールＩＣ１１にバイアス用磁界を印加する磁石である。   1 to 3 show a wheel speed sensor P according to this embodiment, in which a detecting element a is connected in parallel with a rotation detector 11 such as a Hall IC for detecting a magnetic field variation in the same manner as in the prior art. A (single lead terminal) 12 is derived, and an electronic component 13 such as a capacitor is provided between the two lead pieces 12, 12. The lead piece 12 is a 0.2 mm thick K62 (C18090) metal piece, and the relay terminal 5 is a 0.3 mm thick C2600 metal piece. In the figure, E is a magnet for applying a bias magnetic field to the Hall IC 11.

ホルダー２は樹脂成型品であって、上記検出部ａの取付部２ｂの後方（図１の右側）に上下に開口する空洞部３を有する。この空洞部３において、後述のリード片１２と中継端子５の抵抗溶接が行われる（図６参照）。中継端子５はそのホルダー２の樹脂成形時にインサートされて、前記空洞部３の両側がホルダー２（取付部２ｂ、支柱部２ｅ）に埋設して支持固定される。
検出部ａは、その回転検出子１１がホルダー２の孔２ｃに嵌められるとともに、両リード片１２、１２間にホルダーの突起２ｄが嵌って、ホルダー２内に位置決めされる。 The holder 2 is a resin molded product, and has a hollow portion 3 that opens up and down behind the attachment portion 2b of the detection portion a (right side in FIG. 1). In the hollow portion 3, resistance welding of a lead piece 12 and a relay terminal 5 described later is performed (see FIG. 6). The relay terminal 5 is inserted at the time of resin molding of the holder 2, and both sides of the hollow portion 3 are buried and supported and fixed in the holder 2 (attachment portion 2 b, post portion 2 e).
The detection part a is positioned in the holder 2 with the rotation detector 11 fitted in the hole 2 c of the holder 2 and the protrusion 2 d of the holder fitted between the lead pieces 12 and 12.

この位置決めがなされると、検出部ａのリード片１２と中継端子５は空洞部３において重なり合い（対向し）、その重なり部（接続部）において、図３に示すように、従来と同様に、対の電極Ｄ、Ｄでもって抵抗溶接によるスポット溶接により接続される。
このとき、中継端子５の空洞部（接続部）３両側がホルダー２（取付部２ｂ、支柱部２ｅ）に埋設されて支持固定されているため、大きく撓むことが無く、図７に示す従来のように、突起９以外の部分ｃにおいて両者１２、５が接することがない。このため、突起（接続部）９に電流が集中して、電流密度の高い抵抗溶接がなされて、十分な接続強度の接続がなされる。 When this positioning is performed, the lead piece 12 and the relay terminal 5 of the detection part a overlap (oppose) in the cavity part 3, and in the overlap part (connection part), as shown in FIG. The pair of electrodes D and D are connected by spot welding by resistance welding.
At this time, since both sides of the hollow portion (connecting portion) 3 of the relay terminal 5 are embedded and supported and fixed in the holder 2 (attachment portion 2b, post portion 2e), there is no significant deflection, and the conventional structure shown in FIG. Thus, the parts 12 and 5 do not contact each other at the portion c other than the protrusion 9. For this reason, current concentrates on the protrusion (connection part) 9, resistance welding with high current density is performed, and connection with sufficient connection strength is made.

ホルダー２には、合成樹脂製の蓋７が上記検出部ａの嵌め込み孔（開口）から嵌め込まれて検出部ａの適宜個所を押圧して、その検出部ａがホルダー２に取り付けられる。このとき、蓋７は突起８を有して、その突起８が両中継端子５、５間に嵌って、中継端子５、５及びリード片１２、１２を確実に離して短絡を確実に防止するとともに、その嵌合がなされない場合は、検出部ａが正しい位置にセッティングされていないこととなるため、不良品の発見がなされる。   A synthetic resin lid 7 is fitted into the holder 2 from the fitting hole (opening) of the detection part a and presses an appropriate part of the detection part a, and the detection part a is attached to the holder 2. At this time, the lid 7 has a projection 8, and the projection 8 fits between the relay terminals 5, 5, and the relay terminals 5, 5 and the lead pieces 12, 12 are securely separated to prevent short circuit. At the same time, when the fitting is not performed, the detection unit a is not set at the correct position, and therefore a defective product is found.

この検出部ａ付きホルダー２を、従来と同様に、金属製円筒形ケーシング１に挿入して、その検出部ａをケーシング１内に実装するとともに、そのホルダー２の基部２ａをケーシング開口部１ａに嵌合し、中継端子５のホルダー基部２ａ端面からの導出端にケーブル６を接続した後、ケーシング１に取付金具１０を嵌め、ケーシング開口部１ａとホルダー露出部２ａの全周を両者に亘り前記中継端子５及びケーブル６の一部を埋設して樹脂被覆４して車輪速センサＰを得る。   The holder 2 with the detection part a is inserted into the metal cylindrical casing 1 and the detection part a is mounted in the casing 1 as in the prior art, and the base 2a of the holder 2 is inserted into the casing opening 1a. After fitting and connecting the cable 6 to the lead-out end from the end surface of the holder base 2a of the relay terminal 5, the fitting 10 is fitted to the casing 1, and the entire circumference of the casing opening 1a and the holder exposed portion 2a is extended over both. A part of the relay terminal 5 and the cable 6 is embedded and the resin coating 4 is applied to obtain the wheel speed sensor P.

上記実施形態は、中継端子５の空洞部３の両側を支持固定したが、検出部ａのリード片１２の先端（図１において左端）をホルダー２の中継端子５の支柱部２ｅの孔に嵌め込むことによる等によって、そのリード片１２の空洞部３の両側を支持固定するようにもし得る。このとき、その他端（支柱部２ｅの支持端の反対端）の支持固定は、ホールＩＣ１１の嵌め込みによったり、ホールＩＣ１１又はリード片１２のフック爪内への嵌め込み等によったりして行う。   In the above embodiment, both sides of the hollow portion 3 of the relay terminal 5 are supported and fixed, but the tip of the lead piece 12 (the left end in FIG. 1) of the detection portion a is fitted into the hole of the support portion 2e of the relay terminal 5 of the holder 2. It is also possible to support and fix both sides of the hollow portion 3 of the lead piece 12 by, for example, insertion. At this time, the other end (the opposite end of the support end of the support column 2e) is fixed by, for example, fitting the Hall IC 11 or by fitting the Hall IC 11 or the lead piece 12 into the hook claw.

また、図４ａ〜ｃに示すように、中継端子５にその長さ方向のリブ５ａを形成してその長さ方向における耐屈曲性を向上させ、その向上によって、上記溶接時の撓みを抑制するようにすることもできる。このリブ５ａは、上記両端支持固定の実施形態に併用することができる。
リブ５ａの態様としては、同図４ａに示す突条のみならず、長さ方向に亘って屈曲させた場合のその屈曲条（同図ｂ、ｃ）等の種々のものが考えられる。 Moreover, as shown in FIGS. 4a to 4c, the rib 5a in the length direction is formed on the relay terminal 5 to improve the bending resistance in the length direction, and the bending is suppressed by the improvement. It can also be done. The rib 5a can be used in combination with the above-described embodiment where both ends are supported and fixed.
As the form of the rib 5a, not only the protrusion shown in FIG. 4a but also various ones such as a bent line (b and c in the figure) when bent over the length direction are conceivable.

上記実施形態は、リード片１２と中継端子５を抵抗溶接で接合したが、その他の溶接接続においても、そのリード片１２等が動くことは接続強度の低下を招くため好ましくない。この発明は、そのリード片１２等が動くことを抑制するものであるため、抵抗溶接に限らず他の溶接接続においても採用できることは明らかである。また、車輪速センサＰ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。
このように、今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきであり、本発明の範囲は、上記した意味ではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 In the above embodiment, the lead piece 12 and the relay terminal 5 are joined by resistance welding. However, even in other welding connections, movement of the lead piece 12 and the like is not preferable because the connection strength is lowered. Since the present invention suppresses movement of the lead piece 12 and the like, it is obvious that the present invention can be adopted not only in resistance welding but also in other welding connections. In addition, although the wheel speed sensor P is used, the present invention can be applied to other rotation detection sensors.
Thus, it should be considered that the embodiment disclosed this time is illustrative and not restrictive in all respects, and the scope of the present invention is not limited to the above meaning, but is defined by the scope of the claims. And all modifications within the meaning and scope equivalent to the terms of the claims are intended to be included.

一実施形態の切断正面図Cut front view of one embodiment 同実施形態のホルダー部分の分解斜視図The exploded perspective view of the holder part of the embodiment 同実施形態のリード片と中継端子の接続作用図Connection diagram of lead piece and relay terminal of the same embodiment 他の実施形態の中継端子の各例の部分斜視図The fragmentary perspective view of each example of the relay terminal of other embodiment 従来例の切断正面図Cutting front view of conventional example 同従来例のリード片と中継端子の接続作用図Connection diagram of lead piece and relay terminal of the conventional example 図６の要部拡大図Enlarged view of the main part of FIG.

符号の説明Explanation of symbols

１ ケーシング
１ａ ケーシング開口部
２ ホルダー
２ｂ ホルダーのホールＩＣ取付部
２ｅ ホルダーの中継端子支柱部
３ 空洞部
４ 樹脂被覆
５ 中継端子
６ ケーブル
９ 溶接用突起
１０ 取付金具
１１ ホールＩＣ（回転検出子）
１２ リード片（リード端子）
ａ 検出部
Ｐ 車輪速センサ
Ｂ 被検出体
Ｄ 抵抗溶接用電極 DESCRIPTION OF SYMBOLS 1 Casing 1a Casing opening part 2 Holder 2b Hall IC attachment part 2e Holder relay terminal support | pillar part 3 Cavity part 4 Resin coating 5 Relay terminal 6 Cable 9 Welding protrusion 10 Mounting bracket 11 Hall IC (rotation detector)
12 Lead piece (Lead terminal)
a Detector P Wheel speed sensor B Detected object D Resistance welding electrode

Claims (4)

被検出体（Ｂ）の回転による磁界変動を検出し電気信号に変換して出力する検出部（ａ）と、その検出部（ａ）を取り付けたホルダー（２）と、前記検出部（ａ）の片状リード端子（１２）に接続されて前記ホルダー（２）に支持された片状中継端子（５）と、その中継端子（５）に接続されて外部に導出されたケーブル（６）とからなる回転検出センサ（Ｐ）において、
上記リード端子（１２）と中継端子（５）は上記ホルダー（２）の開口する空洞部（３）において溶接接続され、前記リード端子（１２）と中継端子（５）の少なくとも一方はその空洞部（３）の両側のホルダー（２ｂ、２ｅ）に支持固定されていることを特徴とする回転検出センサ。 A detection unit (a) that detects a magnetic field variation due to rotation of the detection object (B), converts it into an electrical signal and outputs it, a holder (2) to which the detection unit (a) is attached, and the detection unit (a) A piece-like relay terminal (5) connected to the piece-like lead terminal (12) and supported by the holder (2), and a cable (6) connected to the relay terminal (5) and led to the outside In the rotation detection sensor (P) consisting of
The lead terminal (12) and the relay terminal (5) are connected by welding in a cavity (3) opened in the holder (2), and at least one of the lead terminal (12) and the relay terminal (5) is a cavity. A rotation detection sensor, characterized in that it is supported and fixed to holders (2b, 2e) on both sides of (3). 上記リード端子（１２）と中継端子（５）は、それぞれ０．３ｍｍ厚以下の金属片からなって、その少なくとも一方には、その長さ方向のリブが形成されてその長さ方向における耐屈曲性の向上が図られていることを特徴とする請求項１に記載の回転検出センサ。   The lead terminal (12) and the relay terminal (5) are each made of a metal piece having a thickness of 0.3 mm or less, and at least one of the lead terminal (12) and the relay terminal (5) is formed with a rib in the length direction thereof, and is bent in the length direction. The rotation detection sensor according to claim 1, wherein an improvement in performance is achieved. 被検出体（Ｂ）の回転による磁界変動を検出し電気信号に変換して出力する検出部（ａ）と、その検出部（ａ）を取り付けたホルダー（２）と、前記検出部（ａ）のリード端子（１２）に接続されて前記ホルダー（２）に埋設支持された中継端子（５）と、その中継端子（５）に接続されて外部に導出されたケーブル（６）とからなる回転検出センサ（Ｐ）において、
上記リード端子（１２）と中継端子（５）は、それぞれ０．３ｍｍ厚以下の金属片からなって上記ホルダー（２）の開口する空洞部（３）において溶接接続され、前記リード端子（１２）と中継端子（５）の少なくとも一方には、その長さ方向のリブ（５ａ）が形成されてその長さ方向における耐屈曲性の向上が図られていることを特徴とする回転検出センサ。 A detection unit (a) that detects a magnetic field variation due to rotation of the detection object (B), converts it into an electrical signal and outputs it, a holder (2) to which the detection unit (a) is attached, and the detection unit (a) A relay terminal (5) connected to the lead terminal (12) and embedded and supported in the holder (2), and a cable (6) connected to the relay terminal (5) and led to the outside In the detection sensor (P),
The lead terminal (12) and the relay terminal (5) are each made of a metal piece having a thickness of 0.3 mm or less and are welded to each other in the hollow portion (3) opened in the holder (2), so that the lead terminal (12) A rotation detection sensor, wherein a rib (5a) in the length direction is formed on at least one of the relay terminal (5) to improve the bending resistance in the length direction. 上記リード端子（１２）と中継端子（５）の接続が抵抗溶接により行われ、その上記リード端子（１２）と中継端子（５）の接続部の一方に抵抗溶接時の電流密度を高めるための突起（９）が設けられていることを特徴とする請求項１乃至３の何れかに記載の回転検出センサ。   The lead terminal (12) and the relay terminal (5) are connected by resistance welding, and one of the connecting portions of the lead terminal (12) and the relay terminal (5) is for increasing the current density during resistance welding. The rotation detection sensor according to any one of claims 1 to 3, wherein a protrusion (9) is provided.
JP2007045409A 2007-02-26 2007-02-26 Rotation detection sensor Expired - Fee Related JP4781297B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015010913A (en) * 2013-06-28 2015-01-19 日本精機株式会社 Liquid level detector
JP2017526917A (en) * 2014-09-08 2017-09-14 ヴアブコ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツングＷＡＢＣＯ ＧｍｂＨ Holder for sensor element, assembly of parts and rotational speed sensor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006030075A (en) * 2004-07-20 2006-02-02 Sumiden Electronics Kk Rotation detection sensor
WO2006080197A1 (en) * 2005-01-26 2006-08-03 Aisin Seiki Kabushiki Kaisha Rotation sensor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006030075A (en) * 2004-07-20 2006-02-02 Sumiden Electronics Kk Rotation detection sensor
WO2006080197A1 (en) * 2005-01-26 2006-08-03 Aisin Seiki Kabushiki Kaisha Rotation sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015010913A (en) * 2013-06-28 2015-01-19 日本精機株式会社 Liquid level detector
JP2017526917A (en) * 2014-09-08 2017-09-14 ヴアブコ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツングＷＡＢＣＯ ＧｍｂＨ Holder for sensor element, assembly of parts and rotational speed sensor

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