JPH0432770A - Manufacture of wheel speed sensor - Google Patents
Manufacture of wheel speed sensorInfo
- Publication number
- JPH0432770A JPH0432770A JP14052490A JP14052490A JPH0432770A JP H0432770 A JPH0432770 A JP H0432770A JP 14052490 A JP14052490 A JP 14052490A JP 14052490 A JP14052490 A JP 14052490A JP H0432770 A JPH0432770 A JP H0432770A
- Authority
- JP
- Japan
- Prior art keywords
- wheel speed
- speed sensor
- resin
- housing
- thermosetting resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 238000000034 method Methods 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 21
- 238000001721 transfer moulding Methods 0.000 claims abstract description 16
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 14
- 239000003822 epoxy resin Substances 0.000 claims abstract description 4
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 4
- 238000001746 injection moulding Methods 0.000 claims description 8
- 229920006015 heat resistant resin Polymers 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 3
- 238000000465 moulding Methods 0.000 abstract description 16
- 238000004804 winding Methods 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
Landscapes
- Regulating Braking Force (AREA)
Abstract
Description
【発明の詳細な説明】
Ｃ産業上の利用分ＩＰ）
この発明は、自動車車輪などの回転体の回転数や回転速
度を検出する車輪速センサの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION C. Industrial Application IP) The present invention relates to a method for manufacturing a wheel speed sensor that detects the number of rotations and rotational speed of a rotating body such as an automobile wheel.
従来車輪速センサとして使用されているものには、例え
ば電磁発電方式、磁気抵抗素子あるいはホール素子を使
用する方式のもの等種々のものが知られているが、−例
として第３図に電磁発電方式のものを示す。Various types of wheel speed sensors are known that have been conventionally used as wheel speed sensors, such as those using an electromagnetic generation method, a magnetic resistance element, or a Hall element. The method is shown below.
図示の車輪速センサは、（ａ）図に示すように、ハウジ
ング１内にヨーク２、磁石３、ボビン４、磁極５、巻線
コイル６、端子７等を入れ、樹脂Ｒで成形したものを、
さらに（ｂＪ図に示すように出力線８のワイヤを端子７
に接続した状態で樹脂Ｒ′で一体に成形される。The illustrated wheel speed sensor has a housing 1 containing a yoke 2, a magnet 3, a bobbin 4, a magnetic pole 5, a winding coil 6, a terminal 7, etc., and molded with resin R, as shown in Figure (a). ,
Furthermore, (as shown in figure bJ) connect the wire of output line 8 to terminal 7.
They are integrally molded with resin R' in a state where they are connected to each other.
この場合、（ａ）図の成形は、ボッティングで樹脂成形
され、ら）図の成形は射出成形により行なわれる。In this case, the molding shown in figure (a) is performed by resin molding by botting, and the molding shown in figure (b) is performed by injection molding.
第４図に示す成形方法では、（ａ）図に示すようにセン
サの機能部品（２〜７）をまずトランスファ成形により
金型内でインサート成形し、これをハウジング１内に入
れ出力線８のワイヤを端子７に接続した状態で（ト））
図のように射出成形により一体に成形する。In the molding method shown in FIG. 4, the functional parts (2 to 7) of the sensor are first insert-molded in a mold by transfer molding as shown in FIG. With the wire connected to terminal 7 (g))
It is integrally molded by injection molding as shown in the figure.
しかしながら、上述したように従来の車輪速センサの成
形方法では、センサの機能部品を一体に成形する段階と
、これに出力線を接続して全体を一体化する段階では異
なる成形方法を用いて２段階に分けて成形していたため
、設備や工数を多く必要とし生産性が悪いという問題が
あった。However, as mentioned above, in the conventional molding method for wheel speed sensors, two different molding methods are used at the stage of integrally molding the functional parts of the sensor and at the stage of connecting the output line to this and integrating the whole. Since molding was performed in stages, there was a problem in that it required a large amount of equipment and man-hours, resulting in poor productivity.
センサの機能部品を一体に成形する場合は、巻線コイル
のワイヤが細く切れ易いため、成形圧が低圧で樹脂注入
時の抵抗も小さいことが望ましく、そこでボッティング
や低圧のトランスファ成形法が用いられている。射出成
形法では流動抵抗も大きく、又成形圧が高い（例えば５
００〜１００１００Ｏ／ｃ（）ためワイヤの断線やハウ
ジングその他の部品の変形が起り、従ってこの方法を採
用することはできない。When molding the functional parts of a sensor into one piece, it is desirable that the molding pressure is low and the resistance during resin injection is low, as the wire of the winding coil is easily cut into thin pieces, so botting or low-pressure transfer molding methods are used. It is being In the injection molding method, the flow resistance is large and the molding pressure is high (for example, 5
00 to 100100 O/c (), wire breakage and deformation of the housing and other parts occur, so this method cannot be adopted.
ハウジングを含みセンサの機能部品と出力線のワイヤハ
ーネスを一体化する場合は、電線の耐熱性が低いためト
ランスファ成形を採用することができず、ナイロン樹脂
等の射出成形法が用いられている。これは、射出成形法
では金型温度が７０〜８０°Ｃであるのに対して、トラ
ンスファ成形法では金型温度は１５０〜１８０°Ｃであ
り、これを３分程度保持する必要があるからである。When integrating the functional parts of the sensor, including the housing, and the wire harness for the output line, transfer molding cannot be used due to the low heat resistance of the electric wire, so injection molding of nylon resin or the like is used. This is because in injection molding, the mold temperature is 70 to 80°C, while in transfer molding, the mold temperature is 150 to 180°C, and it is necessary to maintain this temperature for about 3 minutes. It is.
又、ボッティング成形によりセンサの機能部品を一体化
し、さらにハウジングを含めて出力線と全体をこの方法
により一体化することも考えられるが、この場合は高温
で樹脂を硬化させると電線の劣化や変形（曲りぐせ）が
起り、常温で硬化させると硬化時間が長くなって生産性
が悪くなるため、このような方法が採用されたことはな
い。It is also possible to integrate the functional parts of the sensor by botting molding, and then integrate the entire output line including the housing using this method, but in this case, curing the resin at high temperatures may cause deterioration of the wires and This method has never been used because deformation occurs and curing at room temperature increases curing time and reduces productivity.
この発明は、上述した従来の車輪速センサの製造方法に
おける種々の問題点に鑑みてなされたものであり、その
目的は車輪速センサのハウジング、機能部品、出力線な
どを予め組立てておきこれを金型内に入れて低圧のトラ
ンスファ成形法により一工程で車輪速センサを成形する
方法を提供するにある。This invention was made in view of the various problems in the conventional wheel speed sensor manufacturing method described above, and its purpose is to assemble the housing, functional parts, output wires, etc. of the wheel speed sensor in advance. The object of the present invention is to provide a method for molding a wheel speed sensor in one step by placing it in a mold and using a low-pressure transfer molding method.
そこでこの発明では上記課題を解決するための手段とし
て、車輪速センサの機能部品をハウジング内に入れ、端
部付近にハーネスシールを設けた出力線を前記機能部品
の端子に接続して全体を組立ててこれを金型に入れ、熱
硬化性樹脂を用いて上記組立体を低圧のトランスファ成
形により成形する車輪速センサの製造方法を採用したの
である。Therefore, in this invention, as a means to solve the above problem, the functional parts of the wheel speed sensor are placed in a housing, and the output line with a harness seal provided near the end is connected to the terminal of the functional part, and the whole is assembled. A method of manufacturing a wheel speed sensor was adopted in which the assembly was placed in a mold and molded by low-pressure transfer molding using a thermosetting resin.
前記熱硬化性樹脂は、エポキシ樹脂、不飽和ポリエステ
ル樹脂、フェノール樹脂のいずれかとすることができる
。The thermosetting resin may be an epoxy resin, an unsaturated polyester resin, or a phenol resin.
又、前記ハーネスシールはポリエステル等の耐熱樹脂を
用いて射出成形により予め出力線の端部付近に成形する
のが好ましい。Further, it is preferable that the harness seal is formed in advance near the end of the output line by injection molding using a heat-resistant resin such as polyester.
上述したこの発明による製造方法は、車輪速センサの種
々の形式のいずれにも適用される。The manufacturing method according to the invention described above can be applied to any of the various types of wheel speed sensors.
従って、上記機能部品という用語は、例えば磁気発電方
式のものでは、ヨーク、磁石、ボビン、磁極（ポールピ
ース）、巻線コイル、端子などを意味し、磁気抵抗素子
型のものでは４Ｂ、気抵抗素子、磁石、電気回路、端子
などを言う。その他の形式のものでは上記部品に相当す
るものである。Therefore, the term "functional parts" mentioned above means, for example, a yoke, a magnet, a bobbin, a magnetic pole piece, a winding coil, a terminal, etc. for a magnetic power generating type, and a 4B, a magnetic resistance for a magnetic resistance element type. Refers to elements, magnets, electric circuits, terminals, etc. Other types of parts correspond to the above parts.
機能部品、ハウジング、出力線等は所定の状態に組立ら
れ、その状態で金型に入れて全体を一回のトランスファ
成形により成形されるから、工数、設備の減少が図られ
る。The functional parts, housing, output wires, etc. are assembled in a predetermined state, and then put into a mold in that state and molded as a whole by one transfer molding, which reduces the number of man-hours and equipment.
又、２０〜５０ｋｇ／ａ＋１程度の低圧でトランスファ
成形されるから、巻線の断線やハウジング、その他の部
品の変形は生じない。Further, since transfer molding is performed at a low pressure of about 20 to 50 kg/a+1, breakage of the windings and deformation of the housing and other parts will not occur.
ハーネスシールで出力線を保持することによってトラン
スファ成形時には直接出力線に金型の熱が伝達されるの
が防止される。金型においても当接部分に断熱材を使用
することによって電線の劣化が防止される。By holding the output wire with a harness seal, heat from the mold is prevented from being directly transferred to the output wire during transfer molding. Deterioration of the wire can also be prevented by using a heat insulating material in the contact portion of the mold.
以下この発明の実施例について添付図を参照して説明す
る。Embodiments of the present invention will be described below with reference to the accompanying drawings.
第１図は電磁発電方式の車輪速センサをこの発明による
製造方法を用いて成形したものを示す。FIG. 1 shows an electromagnetic generation type wheel speed sensor molded using the manufacturing method according to the present invention.
車輪速センサは、従来のものと同様な構成部材から成り
、図示のようにハウジング１内にヨーク２、磁石３、ボ
ビン４、磁極（ポールピース）５、巻線コイル６、端子
７等を備えている。The wheel speed sensor is composed of the same components as conventional ones, and includes a yoke 2, a magnet 3, a bobbin 4, a magnetic pole (pole piece) 5, a winding coil 6, a terminal 7, etc. in a housing 1 as shown in the figure. ing.
上記機能部品（２〜７）に対してその端子７を介して出
力線８が接続され、出力線８にはその端部付近にハーネ
スシール９が設けられている。An output line 8 is connected to the functional parts (2 to 7) via their terminals 7, and the output line 8 is provided with a harness seal 9 near its end.
このような機能部品（２〜７）、ハウジング１、出力線
８（バー７スシール９含む）を図示のような状態に組立
てておき、その組立体を金型内に入れ、ハウジング１内
から出力線８までの間のスペースに熱硬化性樹脂Ｘを低
圧のトランスファ成形により注入し７て車輪速センサを
形成する。The functional parts (2 to 7), the housing 1, and the output line 8 (including the bar 7 and the seal 9) are assembled in the state shown in the figure, and the assembly is placed in a mold and the output is output from inside the housing 1. Thermosetting resin X is injected into the space up to line 8 by low pressure transfer molding 7 to form a wheel speed sensor.
上記トランスファ成形では２０〜５０ ｋｇ ｆ ／ｃ
ｊの低圧が用いられる。In the above transfer molding, 20 to 50 kg f/c
A low pressure of j is used.
熱硬化性樹脂Ｘとしては、エポキシ樹脂、不飽和ポリエ
ステル樹脂、フェノール樹脂のいずれかが用いられる。As the thermosetting resin X, any one of an epoxy resin, an unsaturated polyester resin, and a phenol resin is used.
ハーネスシール９はポリエステル等の耐熱樹脂を用いて
射出成形により予め出力線８の端部付近に成形しておく
。The harness seal 9 is formed in advance near the end of the output line 8 by injection molding using a heat-resistant resin such as polyester.
トランスファ成形時には出力線８をこのハーネスシール
の部分で保持するようにする。又、出力線やハーネスシ
ール９を保持する金型の部分には断熱材を使用して出力
線８に熱が加えられるのを防止するのがよい。During transfer molding, the output line 8 is held by this harness seal. Further, it is preferable to use a heat insulating material in the part of the mold that holds the output line and the harness seal 9 to prevent heat from being applied to the output line 8.
第２図は磁気抵抗素子型の車輪速センサをこの発明によ
る製造方法を用いて成形したものを示す。FIG. 2 shows a magnetoresistive element type wheel speed sensor molded using the manufacturing method according to the present invention.
この車輪速センサも、従来例と同様にハウジング１１、
機能部品として磁気抵抗素子１２、磁石１３、電気回路
部１４゛、端子１５を備え、出力線１６がハーネスシー
ル１７を介して端子１５に接続されている。１８は取付
用のブラケットである。This wheel speed sensor also includes a housing 11,
It includes a magnetic resistance element 12, a magnet 13, an electric circuit section 14', and a terminal 15 as functional parts, and an output line 16 is connected to the terminal 15 via a harness seal 17. 18 is a mounting bracket.
上記のように、第１図の実施例の実施例とはその構成が
異なるが、ハウジング１内から出力線１６までのスペー
スには熱硬化性樹脂Ｘを注入して全体を成形する方法は
原則として同しように適用できる。As mentioned above, the structure is different from that of the embodiment shown in FIG. 1, but in principle the method is to inject thermosetting resin The same can be applied as
以上詳細に説明したように、この発明による車輪速セン
サの製造方法ではハウジング内に機能部品を組込んでこ
れに出力線を接続したもののハウジング内から出力線ま
でのスペースに、熱硬化性樹脂を低圧のトランスファ成
形により注入して全体を一回の成形］］程で成形するよ
うにしたから、設備や成形工程が減少しコスト低減を図
ることができ、かつ低圧のトランスファ成形であるため
ハウジングその他の機能部品が変形することが防止され
ると共に従来端子に付着した成形樹脂のハリ取りが不要
になるという種々の利点が得られる。As explained in detail above, in the method for manufacturing a wheel speed sensor according to the present invention, a functional component is assembled in a housing and an output line is connected to it, but a thermosetting resin is used in the space between the inside of the housing and the output line. Since the entire body is injected using low-pressure transfer molding and molded in one step, it is possible to reduce equipment and molding processes and reduce costs. Various advantages can be obtained, such as preventing the functional parts of the terminal from being deformed and eliminating the need to remove the firmness of the molded resin that has conventionally adhered to the terminal.
第１図はこの発明による製造方法で成形された車輪速セ
ンサの主要断面図、第２図は別の構成のセンサにこの発
明の製造方法を用いて成形したものの主要断面図、第３
図は従来例の製造方法を説明する図、第４図は従来例の
もう１つの製造方法を説明する図である。
１．１１・・・・・・ハウジング、２・・・・・・ヨー
ク、３．１３・・・・・・磁石、 ４・・・・・・
ボビン、５・・・・・磁極、 ６・・・−
・・巻線コイル、７．１５・・・・・端子、 ８．
１６・・・・・・出力線、９．１７・・・・・ハーネス
シール、
１２・・・・・・磁気抵抗素子、 １４・・・・・・
電気回路、１８・・・・・・ブラケット、 Ｘ・・
・・・・熱硬化性樹脂。
特許出願人 住友電気工業株式会社同 代理人
鎌
田
文FIG. 1 is a main cross-sectional view of a wheel speed sensor molded using the manufacturing method according to the present invention, FIG. 2 is a main cross-sectional view of a sensor with a different configuration molded using the manufacturing method of the present invention, and FIG.
The figure is a diagram for explaining a conventional manufacturing method, and FIG. 4 is a diagram for explaining another conventional manufacturing method. 1.11...Housing, 2...Yoke, 3.13...Magnet, 4...
Bobbin, 5...Magnetic pole, 6...-
...Winding coil, 7.15...Terminal, 8.
16...Output line, 9.17...Harness seal, 12...Magnetic resistance element, 14...
Electric circuit, 18... Bracket, X...
...Thermosetting resin. Patent applicant Sumitomo Electric Industries Co., Ltd. Agent Fumi Kamata
Claims (5)
端部付近にハーネスシールを設けた出力線を前記機能部
品の端子に接続して全体を組立ててこれを金型に入れ、
熱硬化性樹脂を用いて上記組立体を低圧のトランスファ
成形により成形することを特徴とする車輪速センサの製
造方法。(1) Put the functional parts of the wheel speed sensor into the housing,
Connect the output wire with a harness seal near the end to the terminal of the functional component, assemble the whole thing, and put it into a mold.
A method for manufacturing a wheel speed sensor, characterized in that the assembly is molded by low-pressure transfer molding using a thermosetting resin.
徴とする請求項１に記載の車輪速センサの製造方法。(2) The method for manufacturing a wheel speed sensor according to claim 1, wherein the thermosetting resin is an epoxy resin.
たことを特徴とする請求項１に記載の車輪速センサの製
造方法。(3) The method for manufacturing a wheel speed sensor according to claim 1, wherein the thermosetting resin is an unsaturated polyester resin.
特徴とする請求項１に記載の車輪速センサの製造方法。(4) The method for manufacturing a wheel speed sensor according to claim 1, wherein the thermosetting resin is a phenol resin.
を用いて射出成形により予め出力線の端部付近に成形し
たことを特徴とする請求項１に記載の車輪速センサの製
造方法。(5) The method for manufacturing a wheel speed sensor according to claim 1, wherein the harness seal is formed in advance near the end of the output line by injection molding using a heat-resistant resin such as polyester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14052490A JPH0432770A (en) | 1990-05-29 | 1990-05-29 | Manufacture of wheel speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14052490A JPH0432770A (en) | 1990-05-29 | 1990-05-29 | Manufacture of wheel speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0432770A true JPH0432770A (en) | 1992-02-04 |
Family
ID=15270675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14052490A Pending JPH0432770A (en) | 1990-05-29 | 1990-05-29 | Manufacture of wheel speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0432770A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100858624B1 (en) * | 2006-12-15 | 2008-09-17 | 한국하니웰 주식회사 | Speed sensor and its manufacturing method |
-
1990
- 1990-05-29 JP JP14052490A patent/JPH0432770A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100858624B1 (en) * | 2006-12-15 | 2008-09-17 | 한국하니웰 주식회사 | Speed sensor and its manufacturing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5073735A (en) | Stepping motor having a molded housing | |
| EP2983277B1 (en) | Electromagnetic drive coil unit and molding method thereof | |
| US8610527B2 (en) | Field coil assembly of electromagnetic clutch for a compressor | |
| JP2014529288A (en) | Electric blower assembly and method of manufacturing electric blower assembly | |
| WO2007089788A2 (en) | Transmission sensor with overmolding and method of manufacturing the same | |
| JPH0432770A (en) | Manufacture of wheel speed sensor | |
| KR100763805B1 (en) | Molded electromagnetic coil and process for producing the same | |
| JPS6476704A (en) | Solenoid device | |
| JP3358219B2 (en) | Resin sealing method for bobbin coil | |
| US6737947B1 (en) | Assembly for sealing electrical leads to internal electrical device | |
| JP2912234B2 (en) | Electromagnetic relay | |
| KR19990000264U (en) | Field coil for electromagnetic clutch | |
| JPH099550A (en) | Molded electric apparatus | |
| US20070176593A1 (en) | Transmission sensor with overmolding and method of manufacturing the same | |
| JPH06102054A (en) | Magnetic rotation sensor | |
| JP2003207369A (en) | Stator structure for rotation sensor | |
| JP5311250B2 (en) | Linear motor mover and method of manufacturing the same | |
| JP2758696B2 (en) | Stator of linear pulse motor and method of manufacturing the same | |
| JPH04191662A (en) | Wheel speed sensor and manufacture thereof | |
| JPH04206705A (en) | Inductor and its manufacture | |
| JP3702557B2 (en) | Resin mold motor and manufacturing method thereof | |
| JP2934079B2 (en) | Manufacturing method of sealed coil | |
| JPH08264315A (en) | Support body for coil which can be brought into magnetism and/or magnetized | |
| JPH033308A (en) | Ignition coil for internal combustion engine | |
| CN116525236A (en) | Coil component, processing die for coil component, and processing technique for coil component |