JPH03117763U - - Google Patents
Info
- Publication number
- JPH03117763U JPH03117763U JP2700190U JP2700190U JPH03117763U JP H03117763 U JPH03117763 U JP H03117763U JP 2700190 U JP2700190 U JP 2700190U JP 2700190 U JP2700190 U JP 2700190U JP H03117763 U JPH03117763 U JP H03117763U
- Authority
- JP
- Japan
- Prior art keywords
- coil device
- flange
- moisture
- forming body
- circuit forming
- 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.)
- Granted
Links
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 4
- 238000000576 coating method Methods 0.000 claims 4
- 238000007789 sealing Methods 0.000 claims 4
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第1図は本考案の第1の実施例に係わる速度セ
ンサを示す中央縦断面図、第2図は第1図の速度
センサの平面図、第3図は第1図の速度センサの
ボビンを示す正面図、第4図及び第5図は第2及
び第3の実施例の速度センサの中央縦断面図、第
6図は第5図の速度センサのボビンを示す正面図
、第7図、第8図、第9図、第10図、第11図
、第12図及び第13図は第4、第5、第6、第
7、第8、第9及び第10の実施例の速度センサ
を夫々示す中央縦断面図、第14図は永久磁石の
変形例を示す斜視図である。
2……ボビン、3……コイル、4……磁気回路
形成体、5……樹脂包囲体、6……接着材、6a
……Oリング、7……中央部、8……第1の鍔部
、9……第2の鍔部、10……孔、11……コア
、12……永久磁石。
FIG. 1 is a central vertical cross-sectional view showing a speed sensor according to a first embodiment of the present invention, FIG. 2 is a plan view of the speed sensor shown in FIG. 1, and FIG. 3 shows a bobbin of the speed sensor shown in FIG. 4 and 5 are central vertical sectional views of the speed sensors of the second and third embodiments, FIG. 6 is a front view showing the bobbin of the speed sensor of FIG. 5, and FIG. 8, 9, 10, 11, 12 and 13 are speed sensors of the fourth, fifth, sixth, seventh, eighth, ninth and tenth embodiments. FIG. 14 is a central vertical sectional view showing a modification of the permanent magnet. 2... Bobbin, 3... Coil, 4... Magnetic circuit forming body, 5... Resin enclosure, 6... Adhesive material, 6a
... O-ring, 7 ... Central part, 8 ... First flange, 9 ... Second flange, 10 ... Hole, 11 ... Core, 12 ... Permanent magnet.
Claims (1)
た第1及び第2の鍔部8,9とを有し、且つ前記
第2の鍔部9を貫通しないように前記第1の鍔部
8の中央から前記第2の鍔部9に向つて延びてい
る孔10を有している絶縁性ボビン2と、 少なくとも一部が前記孔10の内に配置されて
いる磁気回路形成体4と、 前記ボビン2の前記中央部7に巻き回されてい
るコイル3と、 少なくとも前記第1の鍔部8と前記第2の鍔部
9との間は覆うが、前記磁気回路形成体4の先端
面は覆わないように配設され、且つ前記第1の鍔
部8に対して水密的に接している防湿被覆手段と から成るコイル装置。 (2) 前記磁気回路形成体4は、磁気コア11と
、この磁気コア11の頂面に配置された永久磁石
12とから成ることを特徴とする請求項1記載の
コイル装置。 (3) 前記磁気コア11が前記ボビン2に一体成
形されていることを特徴とする請求項2記載のコ
イル装置。 (4) 前記防湿被覆手段は、モールド成形された
樹脂包囲体5であることを特徴とする請求項1又
は2又は3記載のコイル装置。 (5) 前記防湿被覆体は、更に、前記第1の鍔部
8と前記樹脂包囲体5との間に水密シール部材を
有することを特徴とする請求項4記載のコイル装
置。 (6) 前記シール部材は接着剤6である請求項5
記載のコイル装置。 (7) 前記シール部材は弾性を有するO形リング
6aである請求項5記載のコイル装置。 (8) 前記防湿被覆手段は、前記磁気回路形成体
4の先端面を露出するための開口を底面に有した
コツプ状防湿ハウジング5aと、前記コツプ状ハ
ウジング5aと前記第1の鍔部8との間をシール
するシール部材6又は6aとから成るものである
請求項1記載のコイル装置。[Claims for Utility Model Registration] (1) A utility model having a central portion 7 and first and second flange portions 8 and 9 disposed on both sides of the central portion 7, and the second flange portion 9 an insulating bobbin 2 having a hole 10 extending from the center of the first flange 8 toward the second flange 9 so as not to penetrate therethrough; The arranged magnetic circuit forming body 4, the coil 3 wound around the central part 7 of the bobbin 2, and at least the space between the first collar part 8 and the second collar part 9 are covered. However, the coil device comprises a moisture-proof coating means disposed so as not to cover the distal end surface of the magnetic circuit forming body 4 and in contact with the first flange 8 in a watertight manner. (2) The coil device according to claim 1, wherein the magnetic circuit forming body 4 comprises a magnetic core 11 and a permanent magnet 12 arranged on the top surface of the magnetic core 11. (3) The coil device according to claim 2, wherein the magnetic core 11 is integrally molded with the bobbin 2. (4) The coil device according to claim 1, 2 or 3, wherein the moisture-proof coating means is a molded resin envelope 5. (5) The coil device according to claim 4, wherein the moisture-proof coating further includes a watertight seal member between the first collar portion 8 and the resin enclosure 5. (6) Claim 5, wherein the sealing member is an adhesive 6.
The described coil device. (7) The coil device according to claim 5, wherein the sealing member is an elastic O-ring 6a. (8) The moisture-proof coating means includes a pot-shaped moisture-proof housing 5a having an opening on the bottom surface for exposing the tip end surface of the magnetic circuit forming body 4, and the tip-shaped housing 5a and the first flange portion 8. 2. The coil device according to claim 1, further comprising a sealing member 6 or 6a for sealing between the coils.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990027001U JPH0754861Y2 (en) | 1990-03-16 | 1990-03-16 | Coil device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990027001U JPH0754861Y2 (en) | 1990-03-16 | 1990-03-16 | Coil device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03117763U true JPH03117763U (en) | 1991-12-05 |
JPH0754861Y2 JPH0754861Y2 (en) | 1995-12-18 |
Family
ID=31529876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990027001U Expired - Lifetime JPH0754861Y2 (en) | 1990-03-16 | 1990-03-16 | Coil device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0754861Y2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04322148A (en) * | 1991-04-18 | 1992-11-12 | Meidensha Corp | Fabrication of high voltage stator coil |
JP2001215132A (en) * | 2000-02-01 | 2001-08-10 | Ntn Corp | Bearing for wheel |
JP2002024776A (en) * | 2000-07-07 | 2002-01-25 | Nippon Signal Co Ltd:The | Ic card reader/writer |
JP2010027515A (en) * | 2008-07-23 | 2010-02-04 | Panasonic Electric Works Co Ltd | Proximity sensor |
JP2011180132A (en) * | 2010-02-26 | 2011-09-15 | Guangyang Ind Co Ltd | Speed detection device of vehicle |
JP2018179901A (en) * | 2017-04-20 | 2018-11-15 | 多摩川精機株式会社 | Linear differential transformer structure |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60127508U (en) * | 1984-02-07 | 1985-08-27 | カルソニックカンセイ株式会社 | rotation sensor |
JPS61140912U (en) * | 1985-02-22 | 1986-09-01 | ||
JPS6250621A (en) * | 1985-08-24 | 1987-03-05 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Induction type signal generator |
-
1990
- 1990-03-16 JP JP1990027001U patent/JPH0754861Y2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60127508U (en) * | 1984-02-07 | 1985-08-27 | カルソニックカンセイ株式会社 | rotation sensor |
JPS61140912U (en) * | 1985-02-22 | 1986-09-01 | ||
JPS6250621A (en) * | 1985-08-24 | 1987-03-05 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Induction type signal generator |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04322148A (en) * | 1991-04-18 | 1992-11-12 | Meidensha Corp | Fabrication of high voltage stator coil |
JP2001215132A (en) * | 2000-02-01 | 2001-08-10 | Ntn Corp | Bearing for wheel |
JP2002024776A (en) * | 2000-07-07 | 2002-01-25 | Nippon Signal Co Ltd:The | Ic card reader/writer |
JP2010027515A (en) * | 2008-07-23 | 2010-02-04 | Panasonic Electric Works Co Ltd | Proximity sensor |
JP4702413B2 (en) * | 2008-07-23 | 2011-06-15 | パナソニック電工株式会社 | Proximity sensor |
JP2011180132A (en) * | 2010-02-26 | 2011-09-15 | Guangyang Ind Co Ltd | Speed detection device of vehicle |
JP2018179901A (en) * | 2017-04-20 | 2018-11-15 | 多摩川精機株式会社 | Linear differential transformer structure |
Also Published As
Publication number | Publication date |
---|---|
JPH0754861Y2 (en) | 1995-12-18 |
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