JP2585666Y2 - Bobbin structure of sealed coil - Google Patents
Bobbin structure of sealed coilInfo
- Publication number
- JP2585666Y2 JP2585666Y2 JP1992084951U JP8495192U JP2585666Y2 JP 2585666 Y2 JP2585666 Y2 JP 2585666Y2 JP 1992084951 U JP1992084951 U JP 1992084951U JP 8495192 U JP8495192 U JP 8495192U JP 2585666 Y2 JP2585666 Y2 JP 2585666Y2
- Authority
- JP
- Japan
- Prior art keywords
- bobbin
- flange
- coil
- thick portion
- inner hole
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/44—Protection against moisture or chemical attack; Windings specially adapted for operation in liquid or gas
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
- H02K2203/12—Machines characterised by the bobbins for supporting the windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Frames (AREA)
Description
【0001】[0001]
【産業上の利用分野】本考案は、小型モータの封止コイ
ルのボビン構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bobbin structure for a sealed coil of a small motor.
【0002】[0002]
【従来の技術】小型モータにおいてコイル組の強度絶縁
性の向上が要求され、コイル組の強化、封止化が必要と
なってきている。従来の製造技術によると、小型軽量・
薄型化の要求の中で、それらを満たすものが提供できな
かった。その原因として、ボビンの一部の軸受け部の強
度や封止材料注入時における軸受け精度のばらつき、鍔
部のそり等の問題が発生し、結果として封止材料が所定
の量だけ注入できなくなり、狙いの品質が確保できなか
ったことが挙げられる。特に、鍔部を薄くすると、封止
樹脂の注入時に、鍔部が変形し、樹脂が型空間内に完全
に入らないため、充分な封止状態が得られず、製品不良
の発生率が高かった。2. Description of the Related Art In small motors, it is required to improve the strength and insulation of a coil set, and it is necessary to strengthen and seal the coil set. According to conventional manufacturing technology,
Among the demands for thinning, those satisfying them could not be provided. As the cause, the strength of the bearing portion of the bobbin and the variation of the bearing accuracy at the time of injection of the sealing material, problems such as warpage of the flange portion occur, and as a result, the sealing material cannot be injected by a predetermined amount, One reason is that the target quality could not be secured. In particular, when the flange is made thin, the flange is deformed when the sealing resin is injected, and the resin does not completely enter the mold space, so that a sufficient sealing state cannot be obtained, and the incidence of product defects is high. Was.
【0003】[0003]
【考案の目的】本考案の目的は、ボビン全体を薄型化し
ながら、成形時の鍔部の変形を防止しまた鍔の一部で強
い軸受けを精度よく形成できるようにすることである。SUMMARY OF THE INVENTION An object of the present invention is to prevent deformation of a flange portion during molding while reducing the thickness of the entire bobbin, and to form a strong bearing with a part of the flange accurately.
【0004】[0004]
【考案の解決手段】上記目的のもとに、本考案は、筒状
の巻き胴の内部でボビン内孔を形成するとともに、前記
巻き胴の両端部で鍔部を一体形成して、上記巻き胴にコ
イルを巻き付けた封止コイルのボビン構造において、上
記鍔部に上記ボビン内孔から始まる環状の肉厚部を形成
して、鍔部を強化し、さらにボビンの一方の鍔部の外側
面でボビン内孔より先端側に出力軸の軸受け部を有する
封止コイルにおいて、鍔部にボビン内孔から始まり前記
軸受け部の直径の1/2以上にかかる環状の肉厚部を形
成することによって、鍔部および軸受け部を一体化して
強化し、成形時に鍔部や軸受け部の変形を防止し、それ
らを封止材料によって完全に包囲できるようにしてい
る。According to the present invention, a bobbin inner hole is formed inside a cylindrical winding drum, and flanges are integrally formed at both ends of the winding drum. In a bobbin structure of a sealed coil in which a coil is wound around a body, an annular thick portion starting from the bobbin inner hole is formed in the flange to reinforce the flange, and further to the outside of one flange of the bobbin.
In a sealed coil having a bearing portion of an output shaft on the front end side of a bobbin inner hole in a surface, an annular thick portion starting from the bobbin inner hole and extending to a half or more of a diameter of the bearing portion is formed in a flange portion. Thereby, the flange portion and the bearing portion are integrated and strengthened, the deformation of the flange portion and the bearing portion during molding is prevented, and they can be completely surrounded by the sealing material.
【0005】[0005]
【実施例】図1は、封止コイル1を示しており、また図
2および図3は、ボビン2の構成を示している。封止コ
イル1は、ボビン2、コイル3およびそれらを包みこむ
封止材料4によって構成されている。1 shows a sealed coil 1, and FIGS. 2 and 3 show the structure of a bobbin 2. FIG. The sealing coil 1 is composed of a bobbin 2, a coil 3, and a sealing material 4 surrounding them.
【0006】ボビン2は、例えば66ナイロンなどによ
って成形されており、筒状の巻き胴5の内部でボビン内
孔7を形成し、また巻き胴5の両端部で鍔部6を一体的
に形成している。これらの鍔部6は、鍔部6の外側面に
おいて、ボビン内孔7の外周部分で環状の肉厚部9を一
体的に形成し、さらに必要に応じ、肉厚部9の外側で環
状の肉厚部10を適当な間隔をおいて形成している。The bobbin 2 is made of, for example, nylon 66, and has a bobbin inner hole 7 formed inside the cylindrical winding drum 5 and a flange 6 integrally formed at both ends of the winding drum 5. doing. These flanges 6 are provided on the outer surface of the flange 6.
In addition , an annular thick portion 9 is integrally formed at an outer peripheral portion of the bobbin inner hole 7, and an annular thick portion 10 is formed at an appropriate interval outside the thick portion 9 as necessary. doing.
【0007】そして、一方の鍔部6は、その外側面にお
いて、ボビン内孔7よりも鍔部6の先端(外周)側で軸
受け部8および端子台11を一体的に形成している。肉
厚部9は、ボビン内孔7から始まり、軸受け部8の直径
の1/2以上にかかった状態となっている。この結果、
軸受け部8は、中心側の肉厚部9の一部にかかってお
り、軸受け部8および肉厚部9は、肉厚部分によって一
体化している。なお、ボビン内孔7の部分に後述の極歯
22を固定するための突起12が適当な間隔をおいて例
えば4個形成されている。[0007] One of the flanges 6 has an outer surface.
In addition, the bearing portion 8 and the terminal block 11 are integrally formed on the front end (outer peripheral) side of the flange portion 6 with respect to the bobbin inner hole 7 . The thick portion 9 starts from the bobbin inner hole 7 and extends over half of the diameter of the bearing portion 8. As a result,
The bearing portion 8 covers a part of the thick portion 9 on the center side.
Thus, the bearing portion 8 and the thick portion 9 are integrated by a thick portion. In addition, for example, four protrusions 12 for fixing pole teeth 22 described later are formed at an appropriate interval in the portion of the bobbin inner hole 7.
【0008】このボビン2にコイル3が巻き付けられ、
その端部が端子台11に取り付けられた端子13に接続
されている。この状態で、図3に示すように、ボビン2
およびコイル3が成形型14の内部に収められ、注入口
15から樹脂などの封止材料4が注入される。このとき
封止材料4は、ボビン2およびコイル3の外部を包み込
み、防水・絶縁機能を高めるために、それらを封止状態
とする。このとき、軸受け部8および肉厚部9が成形型
14の内面に接しているため、これらの端面は、封止材
料4の表面と同じ高さの面となっている。またボビン内
孔7の内面や端子13の先端は、封止材料4によって被
覆されない。A coil 3 is wound around the bobbin 2,
Its end is connected to a terminal 13 attached to a terminal block 11. In this state, as shown in FIG.
The coil 3 is housed inside the mold 14, and a sealing material 4 such as resin is injected from an injection port 15. At this time, the sealing material 4 wraps the outside of the bobbin 2 and the coil 3 and puts them in a sealed state in order to enhance the waterproof / insulating function. At this time, since the bearing portion 8 and the thick portion 9 are in contact with the inner surface of the molding die 14, their end surfaces are at the same height as the surface of the sealing material 4. The inner surface of the bobbin inner hole 7 and the tip of the terminal 13 are not covered with the sealing material 4.
【0009】鍔部6がその中心側の部分で肉厚部9によ
って充分に補強されているため、封止材料4の注入過程
で、鍔部6は、内側面から注入圧を受けても、外側にそ
り返らず、ほとんど変形しない。このため、封止材料4
は、成形型14の内部空間に充分に行き渡り、特に鍔部
6の外側面で注入不良の状態とならない。そして、この
成形後に、外側の環状の肉厚部10は、封止材料4から
露出せず、その内周面に対して凹凸によって結合し、ま
た肉厚部9と成形後の封止材料4との隙間から内部のコ
イル3に至るまでの沿面距離をかせぐことにより、防水
効果および絶縁効果を高めている。Since the flange 6 is sufficiently reinforced at its central portion by the thick portion 9, even if the flange 6 receives the injection pressure from the inner surface during the injection of the sealing material 4, It does not bend outward and hardly deforms. Therefore, the sealing material 4
Is sufficiently distributed in the internal space of the molding die 14, and the injection failure is not particularly caused on the outer surface of the flange 6. After this molding, the outer annular thick portion 10 is not exposed from the sealing material 4, but is bonded to the inner peripheral surface thereof by unevenness, and the thick portion 9 and the molded sealing material 4 are not exposed. The waterproof effect and the insulating effect are enhanced by increasing the creepage distance from the gap to the inner coil 3.
【0010】次に、図4は、この封止コイル1を減速機
付の小型モータ20に組み込んだ例を示している。封止
コイル1は、キャップ状のモータケース21の内部に収
められる。このとき、モータケース21によって形成さ
れた極歯22は、ボビン内孔7の内部で、突起12の間
にあって、永久磁石性のロータ23の外周面と対向して
いる。そして、モータケース21の内部にコア24がは
め込まれ、このコア24とエンドキャップ25との間
に、複数のギヤ26、27が組み込まれている。Next, FIG. 4 shows an example in which the sealed coil 1 is incorporated in a small motor 20 with a speed reducer. The sealing coil 1 is housed in a cap-shaped motor case 21. At this time, the pole teeth 22 formed by the motor case 21 are located between the protrusions 12 inside the bobbin inner hole 7 and face the outer peripheral surface of the permanent magnet rotor 23. The core 24 is fitted into the motor case 21, and a plurality of gears 26 and 27 are incorporated between the core 24 and the end cap 25.
【0011】ロータ23の回転は、ロータ軸28に固定
されたピニオン29によって、ギヤ26に伝達され、さ
らに図示しない複数のギヤによって出力側のギヤ27に
伝達される。ギヤ27は、出力軸30と一体となってお
り、出力軸30の小さな軸31は、前記軸受け部8の内
部にはまっており、また大きな軸32は、エンドキャッ
プ25に形成された軸受け部33によって支持されてい
る。ここで、軸受け部8は、肉厚部9と一体化すること
により、充分に補強されているため、エンドキャップ2
5の軸受け部33とともに、出力軸30を回転自在の状
態で安定に支えている。The rotation of the rotor 23 is transmitted to a gear 26 by a pinion 29 fixed to a rotor shaft 28, and further transmitted to an output gear 27 by a plurality of gears (not shown). The gear 27 is integral with the output shaft 30, and the small shaft 31 of the output shaft 30 fits inside the bearing 8, and the large shaft 32 is a bearing 33 formed on the end cap 25. Supported by Here, since the bearing portion 8 is sufficiently reinforced by being integrated with the thick portion 9, the end cap 2
The output shaft 30 is stably supported in a rotatable state together with the fifth bearing portion 33.
【0012】[0012]
【考案の効果】本考案では、次の効果がある。請求項1
によれば、鍔部の内周すなわち根元部分がボビン内孔か
ら始まる環状の肉厚部によって補強されているため、鍔
部の強度が増し、封止材料の注入時に、そり返りなどの
変形がなく、寸法的な精度が出し易く、封止材料の注入
口の位置や形状が自由に選定でき、成形条件にも自由度
が得られ、成形過程でのリード線の断線や樹脂材料の選
定などの点から成形が容易となる。しかも、ボビン内孔
から始まる環状の肉厚部から鍔部の先端側までが前記封
止材料によって封止され、前記肉厚部より薄く形成した
薄肉部が鍔全周に渡り連続して形成されているため、鍔
部と封止材料との接合面により、沿面距離が長くなり、
しかも成形後において薄い鍔部のそりなどの変形がなく
なる。[Effects of the Invention] The present invention has the following effects. Claim 1
According to, for the inner circumferential i.e. root portion of the flange portion is reinforced by the thick portion of the annular starting from bobbin bore, the flange
The strength of the part is increased, there is no deformation such as warping when the sealing material is injected, dimensional accuracy is easily obtained, and the injection of the sealing material
The position and shape of the mouth can be freely selected, and the molding conditions are also flexible
And lead wire breakage during the molding process and resin material selection
Molding becomes easy from the point of constant. Moreover, bobbin inner hole
From the annular thick part starting from
Sealed with a stopper material and formed thinner than the thick part
Since the thin part is formed continuously over the entire circumference of the collar,
Due to the joint surface between the part and the sealing material, the creepage distance becomes longer,
Moreover , deformation such as warpage of the thin flange after molding is eliminated.
【0013】また、請求項2によれば、環状の肉厚部が
軸受け部に対し直径1/2以上かかって一体化している
ので、軸受け部が強化され、回転軸の支持が安定化す
る。 According to the second aspect , since the annular thick portion is integrated with the bearing portion with a diameter of 1/2 or more, the bearing portion is strengthened and the support of the rotating shaft is stabilized.
【0014】さらに、請求項3によれば、ボビン内孔か
ら始まる環状の肉厚部の外側に所定の間隔をおいて環状
の肉厚部が形成されているので、それらの肉厚部による
凹凸により、肉厚部と封止材料との結合が強くなり、し
かも沿面距離をさらにかせぐことで、防水・絶縁効果が
高められる。Further, according to the third aspect, since the annular thick portions are formed at predetermined intervals outside the annular thick portions starting from the bobbin inner holes, the irregularities due to those thick portions are formed. Thereby, the connection between the thick portion and the sealing material is strengthened, and the creepage distance is further increased, whereby the waterproofing / insulating effect is enhanced.
【図1】封止コイルの平面図である。FIG. 1 is a plan view of a sealing coil.
【図2】ボビンの平面図である。FIG. 2 is a plan view of a bobbin.
【図3】封止樹脂の注入時の断面図である。FIG. 3 is a cross-sectional view when a sealing resin is injected.
【図4】封止コイルを小型モータに組み込んだ状態の拡
大断面図である。FIG. 4 is an enlarged sectional view showing a state in which a sealing coil is incorporated in a small motor.
1 封止コイル 2 ボビン 3 コイル 4 封止材料 5 巻き胴 6 鍔部 7 ボビン内孔 8 軸受け部 9 肉厚部 10 肉厚部 DESCRIPTION OF SYMBOLS 1 Sealing coil 2 Bobbin 3 Coil 4 Sealing material 5 Winding cylinder 6 Flange part 7 Bobbin inner hole 8 Bearing part 9 Thick part 10 Thick part
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6,DB名) H02K 3/30 - 3/52 H02K 5/08──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) H02K 3/30-3/52 H02K 5/08
Claims (3)
するとともに、前記巻き胴の両端部で鍔部を一体成形し
て、上記巻き胴にコイルを巻き付け、このコイルの外周
および上記両鍔部の外側部分を封止材料により包み込む
封止コイルにおいて、 上記鍔部は上記ボビン内孔から始まり、このボビン内孔
に沿って全周に渡り形成されており、上記ボビン内孔の
周囲で外側に突出した環状の肉厚部を有し、この肉厚部
より鍔部の先端側には、前記封止材料によって封止され
前記肉厚部より薄く形成した薄肉部が鍔全周に渡り連続
して形成されていることを特徴とする封止コイルのボビ
ン構造。1. A bobbin inner hole is formed inside a cylindrical winding drum, and a flange is integrally formed at both ends of the winding drum, and a coil is wound around the winding drum. In a sealed coil enclosing outer portions of both flange portions with a sealing material, the flange portion starts from the bobbin inner hole, and is formed over the entire circumference along the bobbin inner hole. in has a thick portion of the annular projecting outward, this on the distal end side of the flange portion from the thick portion is thin portion that the sealed by the sealing material is formed thinner than <br/> the thick portion Are formed continuously over the entire circumference of the collar, and the bobbin structure of the sealing coil.
孔より先端側に、出力軸用の軸受け部を有する封止コイ
ルのボビン構造において、前記鍔部にボビン内孔から始
まり、前記軸受け部の直径の1/2以上までにわたる環
状の肉厚部を一体的に形成したことを特徴とする請求項
1記載の封止コイルのボビン構造。2. The bobbin has an outer surface formed on one side of the bobbin.
In the bobbin structure of the sealed coil having a bearing portion for the output shaft on the tip side from the hole , the flange portion has an annular thick portion starting from the bobbin inner hole and extending up to 1/2 or more of the diameter of the bearing portion. The bobbin structure for a sealed coil according to claim 1, wherein the bobbin structure is formed integrally.
の肉厚部を間隔をおいて形成したことを特徴とする請求
項1または請求項2記載の封止コイルのボビン構造。3. The bobbin structure of a sealed coil according to claim 1 , wherein an annular thick portion outside the thick portion is formed at intervals on the flange portion.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1992084951U JP2585666Y2 (en) | 1992-11-17 | 1992-11-17 | Bobbin structure of sealed coil |
CN93114700A CN1045506C (en) | 1992-11-17 | 1993-11-16 | Coil frame structure for packaging of coil |
KR1019930024438A KR940012755A (en) | 1992-11-17 | 1993-11-17 | Bobbin structure of sealing coil |
KR2019980003135U KR0131659Y1 (en) | 1992-11-17 | 1998-03-05 | Coil frame structure for packaging of coil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1992084951U JP2585666Y2 (en) | 1992-11-17 | 1992-11-17 | Bobbin structure of sealed coil |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0644357U JPH0644357U (en) | 1994-06-10 |
JP2585666Y2 true JP2585666Y2 (en) | 1998-11-25 |
Family
ID=13844949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1992084951U Expired - Fee Related JP2585666Y2 (en) | 1992-11-17 | 1992-11-17 | Bobbin structure of sealed coil |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2585666Y2 (en) |
KR (2) | KR940012755A (en) |
CN (1) | CN1045506C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103310940B (en) * | 2012-03-06 | 2018-02-02 | 浙江三花智能控制股份有限公司 | Magnet coil and its skeleton |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6155448U (en) * | 1984-09-13 | 1986-04-14 | ||
JPS61126756U (en) * | 1985-01-28 | 1986-08-08 | ||
JPS62290332A (en) * | 1986-06-05 | 1987-12-17 | Sankyo Seiki Mfg Co Ltd | Two-layer motor |
DE3639004A1 (en) * | 1986-11-14 | 1988-05-26 | Licentia Gmbh | CONNECTOR FOR SMALL MOTOR |
JPH074053B2 (en) * | 1988-04-13 | 1995-01-18 | 株式会社日立製作所 | Charging circuit |
-
1992
- 1992-11-17 JP JP1992084951U patent/JP2585666Y2/en not_active Expired - Fee Related
-
1993
- 1993-11-16 CN CN93114700A patent/CN1045506C/en not_active Expired - Fee Related
- 1993-11-17 KR KR1019930024438A patent/KR940012755A/en not_active Application Discontinuation
-
1998
- 1998-03-05 KR KR2019980003135U patent/KR0131659Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1088365A (en) | 1994-06-22 |
CN1045506C (en) | 1999-10-06 |
KR940012755A (en) | 1994-06-24 |
JPH0644357U (en) | 1994-06-10 |
KR0131659Y1 (en) | 1999-10-01 |
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