JPH0736586U - Bearing device for brushless motor - Google Patents
Bearing device for brushless motorInfo
- Publication number
- JPH0736586U JPH0736586U JP6890893U JP6890893U JPH0736586U JP H0736586 U JPH0736586 U JP H0736586U JP 6890893 U JP6890893 U JP 6890893U JP 6890893 U JP6890893 U JP 6890893U JP H0736586 U JPH0736586 U JP H0736586U
- Authority
- JP
- Japan
- Prior art keywords
- bearing holder
- stator base
- bearing
- brushless motor
- bearing device
- 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
Landscapes
- Brushless Motors (AREA)
- Motor Or Generator Frames (AREA)
Abstract
(57)【要約】
【目的】 高強度が得られ、コスト低減と軸垂度のよい
軸受け装置の提供。
【構成】 ステータベース２０に軸受けホルダ３０を一
体化するにあたって、該軸受けホルダ３０を樹脂でステ
ータベース２０の一部が補強手段となるように成形す
る。この補強手段として軸受けホルダ３０支持部３２の
内部で橋絡するか、および（または）ステータベース２
０から切り起こした突起２２を軸受けホルダ３０の立ち
上げ部３１に食い込ませた。
(57) [Summary] [Purpose] To provide a bearing device that achieves high strength, reduces cost, and has a high degree of axial suspension. [Structure] When the bearing holder 30 is integrated with the stator base 20, the bearing holder 30 is molded of resin so that a part of the stator base 20 serves as a reinforcing means. As the reinforcing means, the bearing holder 30 is bridged inside the supporting portion 32 and / or the stator base 2
The protrusion 22 cut and raised from 0 was made to bite into the rising portion 31 of the bearing holder 30.
Description
【０００１】[0001]
この考案は、ヘッドホンステレオプレーヤー等に用いられるブラシレスモータ の軸受け装置に関する。 The present invention relates to a bearing device for a brushless motor used in a headphone stereo player or the like.
【０００２】[0002]
従来のブラシレスモータの軸受け装置としては図４に示すように電気亜鉛メッ キ鋼板からなるステータベース１のほぼ中央に軸受けホルダ装着孔２を穿設し、 これに黄銅製の軸受けホルダ３を嵌着し、底部４をかしめることによって一体化 したものが知られている。 図中、５はプーリでステータベース１の外周の立ち上げ部１ａに配したステー タ６をわずかな空隙を介して挟んだ回転ヨーク７、マグネット８を載置した回転 ケース９がそれぞれ取り付けられ、シャフト１０に圧入されている。このシャフ ト１０は、軸受け１１、１２を介して当て板１３にピボット支承されると共に受 け板１４で保持される。このようにして回転ヨーク型ブラシレスモータを構成し ている。 As a conventional brushless motor bearing device, as shown in FIG. 4, a stator holder 1 made of electro-zinc plated steel plate is provided with a bearing holder mounting hole 2 at substantially the center thereof, and a brass bearing holder 3 is fitted therein. However, it is known that the bottom part 4 is integrated by caulking. In the figure, reference numeral 5 is a pulley, and a rotating yoke 7 in which a stator 6 arranged on a rising portion 1a on the outer periphery of the stator base 1 is sandwiched with a slight gap, and a rotating case 9 on which a magnet 8 is mounted are attached. It is press-fitted onto the shaft 10. The shaft 10 is pivotally supported by a backing plate 13 via bearings 11 and 12, and is held by a receiving plate 14. Thus, the rotary yoke type brushless motor is constructed.
【０００３】[0003]
ところが、上記の軸受けホルダ３は快削黄銅を切削加工して形成するため、部 品コストが高く、当て板１２、受け板１３等の部品点数も多くなり、しかも、ス テータベースに嵌着するのにかしめによっているので、受け板１２と共にダブル かしめが必要となり加工コストが高くなるし、軸垂度が出にくく、かしめ強度が 大きく得られない問題があり、ヘッドホンステレオプレーヤのように落下しやす い機器に搭載する場合、衝撃によって軸が曲がりロータ部（マグネット８や回転 ヨーク７）がステータ６に当接してしまうおそれがあった。 However, since the bearing holder 3 is formed by cutting free-cutting brass, the component cost is high, the number of parts such as the backing plate 12 and the receiving plate 13 is large, and the bearing holder 3 is fitted to the stator base. Since it uses the caulking method, it requires double caulking together with the backing plate 12, which increases the processing cost. It also has a problem that the axial sag is difficult to obtain, and the caulking strength cannot be increased. When it is mounted on a new device, there is a risk that the shaft may bend due to impact and the rotor portion (magnet 8 or rotating yoke 7) may come into contact with the stator 6.
【０００４】 このコスト対策としては、ステータベースに軸受けホルダを樹脂で一体成形し てしまう構造が考えられるが、この考案はこのような構造に工夫を加えて高強度 が得られ、コスト低減と軸垂度のよい軸受け装置を提供しようとするものである 。As a measure against this cost, a structure in which a bearing holder is integrally molded with a resin on a stator base is conceivable. However, this invention has been devised in such a structure to obtain high strength, thereby reducing the cost and the shaft. The purpose of the present invention is to provide a bearing device with a high degree of droop.
【０００５】[0005]
この考案は、このような軸受けホルダをステータベースの一部が補強手段とな るように樹脂で一体成形したものであり、好ましくは補強手段の少なくとも一つ が軸受けホルダの支持部を内部で橋絡するようにしたものかあるいは（さらに） 軸受けホルダの立ち上げ部に食い込ませた突起であるものがよい。 In this invention, such a bearing holder is integrally molded with resin so that a part of the stator base serves as a reinforcing means. Preferably, at least one of the reinforcing means bridges the support portion of the bearing holder inside. It may be entangled or (further) a protrusion that digs into the start-up of the bearing holder.
【０００６】[0006]
軸受けホルダの受け部の内部を橋絡した補強手段はシャフトでピボット支承部 の補強となり、シャフトの出力端への衝撃に耐える。 軸受けホルダの立ち上げ部に突起を食い込ませた補強手段は軸受けホルダの横 方向からの衝撃に耐えられるし、ステータベースを全型のパーティング面とする ことにより軸垂度の寸法安定性が得られるようになる。 The reinforcing means bridging the inside of the bearing part of the bearing holder reinforces the pivot bearing part by the shaft and withstands the impact on the output end of the shaft. The reinforcement means with the protrusions biting into the start-up part of the bearing holder can withstand the impact from the lateral direction of the bearing holder. Will be available.
【０００７】[0007]
図１は本考案のブラシレスモータの軸受け装置の要部断面図で、ステータベー ス２０のほぼ中央に、図２に示すように３個の透孔２１を設けると共に、透孔２ １の間より３個の突起２２を突き出す。３０はガラス繊維強度ポリアミド樹脂か らなる軸受けホルダで、前記透孔２１を介して突起２２がホルダ立ち上げ部３１ の内部に食いこまされるように、かつ、上面に立ち上げ部３１、下面に支持部３ ２が出るように前記ベース２０にアウトサート成形される。 FIG. 1 is a cross-sectional view of a main part of a bearing device for a brushless motor according to the present invention. As shown in FIG. 2, three through holes 21 are provided in a substantially central portion of a stator base 20, and three holes 21 are provided between the holes 21. Stick out the individual protrusions 22. Reference numeral 30 is a bearing holder made of glass fiber strength polyamide resin, and the projection 22 is bitten into the inside of the holder rising part 31 through the through hole 21, and the rising part 31 is formed on the upper surface and the lower part is formed on the lower surface. The base 20 is outsert-molded so that the supporting portion 32 is exposed.
【０００８】 したがって、ステータベース２０を全型のパーティング面にすることにより良 好な軸垂度が得られ、シャフト１０をピボット支承する支持部３２の内部にはス テータベース２０の一部が、橋絡するように残り軸方向の補強手段となるので、 高強度が得られる。また、突起２２は立ち上げ部３１の補強手段となる。図中図 ４の従来と同様なものは同一符号は付記してその説明は省略する。Therefore, by forming the stator base 20 as a parting surface of all types, a good axial descent is obtained, and a part of the stator base 20 is provided inside the support portion 32 that supports the shaft 10. Since it becomes a reinforcing means in the remaining axial direction so that it bridges, high strength can be obtained. Further, the protrusion 22 serves as a reinforcing means for the rising portion 31. In the figure, those similar to the conventional one in FIG. 4 are denoted by the same reference numerals, and the description thereof will be omitted.
【０００９】 なお、上記では、ステータベースの支持部３２が下面に突き出ている構成を例 示したが、下面に支持部が出てはいけない場合は、図３に示すように、橋絡部分 が上方にふくらませるとよい。この場合支持部３はステータベースの下面に出な くなるので、取り付け等の体裁がよい。In the above description, the structure in which the support portion 32 of the stator base is projected to the lower surface is shown as an example. However, when the support portion should not be projected to the lower surface, as shown in FIG. You should inflate it upwards. In this case, since the supporting portion 3 does not protrude from the lower surface of the stator base, the appearance of the attachment or the like is good.
【００１０】 また、上記実施例では当て板を省略して直接ピボット支承するものを示したが 、耐摩耗性の、たとえばフッ素樹脂板からなる当て板を装着してピボット支承さ せてもよい。Further, in the above-mentioned embodiment, although the contact plate is omitted and the pivot is directly supported, it is also possible to mount the wear-resistant contact plate made of, for example, a fluororesin plate to support the pivot.
【００１１】[0011]
この考案は、上記のようにステータベースの一部が補強手段となるようにアウ トサート成形した樹脂ホルダからなる軸受け装置にしたので、高強度が得られ、 部品点数、部品コストの削減と良好な軸垂度が得られる。 In this invention, since the bearing device is composed of the resin holder that is outer-sert-molded so that a part of the stator base serves as the reinforcing means as described above, high strength can be obtained, and the number of parts and the cost of parts can be reduced and excellent. Axiality is obtained.
【００１２】[0012]
【図１】本考案のブラシレスモータの軸受け装置の実施
例の要部断面図である。FIG. 1 is a cross-sectional view of essential parts of an embodiment of a bearing device for a brushless motor according to the present invention.
【図２】同装置を構成するステータベースの要部斜視図
である。FIG. 2 is a perspective view of a main part of a stator base that constitutes the same device.
【図３】同軸受け装置の他の実施例の要部断面図であ
る。FIG. 3 is a cross-sectional view of the main parts of another embodiment of the coaxial receiver.
【図４】従来のブラシレスモータの軸受け装置の要部断
面図である。FIG. 4 is a sectional view of a main part of a conventional bearing device for a brushless motor.
２０ ステータベース ２１ 透孔 ２２ 突起 ３０ 軸受けホルダ ３１ 立ち上げ部 ３２ 支持部 20 stator base 21 through hole 22 protrusion 30 bearing holder 31 start-up part 32 support part
Claims (3)
化したものであって、該軸受けホルダをステータベース
の一部が補強手段となるように樹脂で一体成形したブラ
シレスモータの軸受け装置。1. A bearing device for a brushless motor, wherein a bearing holder is integrated with a stator base, and the bearing holder is integrally molded with resin so that a part of the stator base serves as a reinforcing means.
ダの支持部を内部で橋絡するようにしたものである請求
項１記載のブラシレスモータの軸受け装置。2. The bearing device for a brushless motor according to claim 1, wherein at least one of the reinforcing means is configured to bridge the support portion of the bearing holder inside.
ダの立ち上げ部に食い込ませた突起である請求項１また
は２記載のブラシレスモータの軸受け装置。3. A bearing device for a brushless motor according to claim 1, wherein at least one of the reinforcing means is a protrusion that is engaged with the rising portion of the bearing holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993068908U JP2605609Y2 (en) | 1993-11-30 | 1993-11-30 | Bearing device for brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993068908U JP2605609Y2 (en) | 1993-11-30 | 1993-11-30 | Bearing device for brushless motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0736586U true JPH0736586U (en) | 1995-07-04 |
| JP2605609Y2 JP2605609Y2 (en) | 2000-07-31 |
Family
ID=13387228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993068908U Expired - Fee Related JP2605609Y2 (en) | 1993-11-30 | 1993-11-30 | Bearing device for brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2605609Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4747754B2 (en) * | 2005-09-16 | 2011-08-17 | 日本電産株式会社 | motor |
| JP2012200129A (en) * | 2011-03-18 | 2012-10-18 | Taida Electronic Ind Co Ltd | Fan and motor of the same |
| KR20140078798A (en) * | 2012-12-17 | 2014-06-26 | 엘지이노텍 주식회사 | Motor housing |
| JP2015216713A (en) * | 2014-05-07 | 2015-12-03 | 日本電産株式会社 | Motor |
| JP2015214890A (en) * | 2014-05-07 | 2015-12-03 | 日本電産株式会社 | Casing and air blower |
-
1993
- 1993-11-30 JP JP1993068908U patent/JP2605609Y2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4747754B2 (en) * | 2005-09-16 | 2011-08-17 | 日本電産株式会社 | motor |
| JP2012200129A (en) * | 2011-03-18 | 2012-10-18 | Taida Electronic Ind Co Ltd | Fan and motor of the same |
| KR20140078798A (en) * | 2012-12-17 | 2014-06-26 | 엘지이노텍 주식회사 | Motor housing |
| JP2015216713A (en) * | 2014-05-07 | 2015-12-03 | 日本電産株式会社 | Motor |
| JP2015214890A (en) * | 2014-05-07 | 2015-12-03 | 日本電産株式会社 | Casing and air blower |
| US9856880B2 (en) | 2014-05-07 | 2018-01-02 | Nidec Corporation | Motor and blower |
| US10054126B2 (en) | 2014-05-07 | 2018-08-21 | Nidec Corporation | Casing and blower |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2605609Y2 (en) | 2000-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
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|
| R250 | Receipt of annual fees |
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|
| R250 | Receipt of annual fees |
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| LAPS | Cancellation because of no payment of annual fees |