JPH1098853A - Molded motor incorporating circuit - Google Patents

Molded motor incorporating circuit

Info

Publication number
JPH1098853A
JPH1098853A JP8271520A JP27152096A JPH1098853A JP H1098853 A JPH1098853 A JP H1098853A JP 8271520 A JP8271520 A JP 8271520A JP 27152096 A JP27152096 A JP 27152096A JP H1098853 A JPH1098853 A JP H1098853A
Authority
JP
Japan
Prior art keywords
substrate
heat sink
motor
premix
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.)
Granted
Application number
JP8271520A
Other languages
Japanese (ja)
Other versions
JP3652455B2 (en
Inventor
Hiroshi Yoshida
洋 吉田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Mechatronics Corp
Original Assignee
Shibaura Engineering Works Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shibaura Engineering Works Co Ltd filed Critical Shibaura Engineering Works Co Ltd
Priority to JP27152096A priority Critical patent/JP3652455B2/en
Publication of JPH1098853A publication Critical patent/JPH1098853A/en
Application granted granted Critical
Publication of JP3652455B2 publication Critical patent/JP3652455B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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  • Motor Or Generator Cooling System (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

PROBLEM TO BE SOLVED: To enhance heat dissipation by making a hole of an arbitrary size in the surface of a substrate tightly touching the surface of a heat sink built in a mold frame thereby enlarging the contact surface between the heat sink and a premix. SOLUTION: In a brushless DC motor incorporating a circuit, a mold frame is formed by molding a stator and a substrate 4 through premix. A power IC 9 is mounted on the substrate 4 and fixed tightly with a heat sink 10. A hole 4a is made through the substrate 4 and and the heat sink 10 is fixed to close the hole 4a. Size of the hole 4a is determined to fix the heat sink 10 to the substrate 4 with such a strength as the heat sink 10 is not stripped off from the substrate 4 by the molding pressure. Since the contact surface between the heat sink and the premix is enlarged, heat dissipation of the heat sink 10 can be enhanced.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】モールドフレーム内に、基板を内
蔵し、この基板に密着してヒートシンクが設けられた回
路内蔵型モールドモータに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit built-in type motor in which a substrate is built in a mold frame and a heat sink is provided in close contact with the substrate.

【0002】[0002]

【従来の技術】従来における回路内蔵型モールドモータ
の一例である回路内蔵型ブラシレスDCモータ(以下B
Lモータという)を図2および図3を用いて説明する。
図2は、従来におけるBLモータの側断面図である。図
3は、図2におけるBLモータ内の基板部の部分拡大断
面図である。
2. Description of the Related Art A built-in circuit type brushless DC motor (hereinafter referred to as B) is an example of a conventional built-in circuit type molded motor.
L motor) will be described with reference to FIGS.
FIG. 2 is a side sectional view of a conventional BL motor. FIG. 3 is a partially enlarged cross-sectional view of a substrate portion in the BL motor in FIG.

【0003】図2において、BLモータ11は、熱硬化
性の樹脂がベースとなったプリミックス2により、固定
子3と基板12とをモールド成形して、筒状に形成され
たモールドフレーム13と、永久磁石14を備えモール
ドフレーム13の内周側に収納された回転子6と、回転
子6を支持して回転子6を回転自在にさせる軸受7と、
軸受7を収納し、モールドフレーム13の開口部に取り
付けられたボールハウジング8とで構成されている。
[0003] In FIG. 2, a BL motor 11 is formed by molding a stator 3 and a substrate 12 with a premix 2 based on a thermosetting resin to form a cylindrical molded frame 13. A rotor 6 provided with a permanent magnet 14 and housed on the inner peripheral side of the mold frame 13, a bearing 7 for supporting the rotor 6 and rotating the rotor 6;
A ball housing 8 accommodates the bearing 7 and is attached to the opening of the mold frame 13.

【0004】固定子3は、積層コア15と、絶縁材16
を介して積層コア15に巻かれた複数個の巻線17とで
構成されている。
The stator 3 includes a laminated core 15 and an insulating material 16.
And a plurality of windings 17 wound around the laminated core 15 through the core.

【0005】また、固定子3に隣接して基板12が固定
子3に取り付けられている。そして、基板12の端部に
は、巻線17の端末が接続されている(図示しない)。
そして、この巻線17の巻かれた基板12の端部には、
各巻線17間を接続するためのパターン(図示しない)
が設けられている。
[0005] A board 12 is attached to the stator 3 adjacent to the stator 3. An end of the winding 17 is connected to an end of the substrate 12 (not shown).
Then, at the end of the substrate 12 on which the winding 17 is wound,
Pattern (not shown) for connecting between each winding 17
Is provided.

【0006】回転子6は、シャフト18と、シャフト1
8の外周に固着されたヨーク19と、ヨーク19の外周
に固着された永久磁石14とで構成されている。
[0006] The rotor 6 comprises a shaft 18 and the shaft 1.
The yoke 19 is fixed to the outer periphery of the yoke 19 and the permanent magnet 14 is fixed to the outer periphery of the yoke 19.

【0007】図3において、基板12上には、BLモー
タ11を駆動・制御するための各種電子部品が搭載され
ている。これら電子部品の中で発熱量が多く、各巻線1
7間に流す電流の切り替えを行っているパワーIC9に
は、ヒートシンク10がパワーIC9に密着して取り付
けられ、パワーIC9より発生する熱を放散する役割を
果たしている。また、ヒートシンク10は、基板12面
上にも密着して取り付けられており、モールド成形時に
おけるモールド圧でヒートシンク10が移動し基板12
より取り外れないように取り付けられている。
In FIG. 3, various electronic components for driving and controlling the BL motor 11 are mounted on a substrate 12. Among these electronic components, a large amount of heat is generated.
A heat sink 10 is attached to the power IC 9 that switches the current flowing between the power ICs 7 in close contact with the power IC 9 and plays a role of dissipating heat generated from the power IC 9. Further, the heat sink 10 is also mounted on the surface of the substrate 12 in close contact with the substrate 12.
It is attached so that it cannot be removed.

【0008】[0008]

【発明が解決しようとする課題】回路内蔵型のモールド
モータは、エアコンなどのファンモータとして使用され
ることが多いが、近年、エアコンの小型化により、ファ
ンモータにおいても、小型化が要求されてきている。
A molded motor with a built-in circuit is often used as a fan motor for an air conditioner or the like. In recent years, the miniaturization of the air conditioner has required a smaller fan motor. ing.

【0009】この対策の一つとして、モールドフレーム
内に内蔵されているヒートシンクの容量を小さくして、
モータを小型化する方法があるが、パワーICの発熱量
の関係で、ヒートシンクの容量を小さくするには限界が
あった。
One of the measures is to reduce the capacity of the heat sink built in the mold frame,
Although there is a method of reducing the size of the motor, there is a limit to reducing the capacity of the heat sink due to the heat generation amount of the power IC.

【0010】[0010]

【課題を解決するための手段】そこで、本発明によれ
ば、ヒートシンクの面が密着している基板面に任意の大
きさの孔を設けたことを特徴とする回路内蔵型モールド
モータを提供する。
According to the present invention, there is provided a molded motor with a built-in circuit, wherein a hole of an arbitrary size is provided on a substrate surface on which a heat sink surface is in close contact. .

【0011】[0011]

【作用】基板上に取り付けられたパワーICに、ヒート
シンクを固着する。そして、このヒートシンクを基板面
上に密着して取り付ける。この時、基板に設けられた孔
をヒートシンクで塞ぐようにして取り付ける。
The heat sink is fixed to the power IC mounted on the substrate. Then, this heat sink is attached in close contact with the substrate surface. At this time, the mounting is performed so that the hole provided in the substrate is closed with a heat sink.

【0012】そして、この基板をモールド成形してプリ
ミックスによりヒートシンクが覆われると、基板に設け
られた孔の大きさだけ、ヒートシンクとプリミックスと
の接触面積が広くなり、ヒートシンクの放熱性が向上す
る。
When this substrate is molded and the heat sink is covered with the premix, the contact area between the heat sink and the premix is increased by the size of the hole provided in the substrate, and the heat dissipation of the heat sink is improved. I do.

【0013】[0013]

【実施例】本発明における実施例を図1を用いて説明す
る。図1は、本発明におけるBLモータ内に内蔵された
基板部の拡大部分断面図である。
An embodiment of the present invention will be described with reference to FIG. FIG. 1 is an enlarged partial cross-sectional view of a substrate portion incorporated in a BL motor according to the present invention.

【0014】図1において、BLモータ1は、従来例で
説明したBLモータと同様に、プリミックス2により、
固定子3と基板4とをモールド成形して形成されたモー
ルドフレーム5と、回転子6と、軸受7と、ボールハウ
ジング8とで構成されている。基板4上には、従来例と
同様に、パワーIC9が搭載されており、また、このパ
ワーIC9に密着して、ヒートシンク10が取り付けら
れている。基板4には、孔4aが設けられており、この
孔4aを塞ぐようにして、ヒートシンク10が取り付け
られている。
In FIG. 1, a BL motor 1 is formed by a premix 2 similarly to the BL motor described in the conventional example.
It comprises a mold frame 5 formed by molding the stator 3 and the substrate 4, a rotor 6, a bearing 7, and a ball housing 8. A power IC 9 is mounted on the substrate 4 as in the conventional example, and a heat sink 10 is attached in close contact with the power IC 9. The substrate 4 is provided with a hole 4a, and a heat sink 10 is attached so as to close the hole 4a.

【0015】基板4の孔4aの大きさは、モールド成形
時におけるモールド圧により、ヒートシンク10が基板
4から剥離しない強度で取り付けることができりよう
に、基板4の孔4aの大きさを決定する。
The size of the hole 4a of the substrate 4 is determined by the molding pressure during molding so that the heat sink 10 can be attached with a strength that does not peel off from the substrate 4. .

【0016】また、プリミックス2の熱伝導率は、2.
8〜3.5×10-3cal/cm・s℃であり、基板4の熱伝導
率は、9〜11×10-4cal/cm・s℃である。つまり、プ
リミックス2は、基板4と比較して、より熱を放散する
ことができる。従って、ヒートシンク10とプリミック
ス2との接触面積を広くすることにより、ヒートシンク
10の放熱性が向上する。
The thermal conductivity of the premix 2 is 2.
8 to 3.5 × 10 −3 cal / cm · s ° C., and the thermal conductivity of the substrate 4 is 9 to 11 × 10 −4 cal / cm · s ° C. That is, the premix 2 can dissipate more heat than the substrate 4. Therefore, by increasing the contact area between the heat sink 10 and the premix 2, the heat radiation of the heat sink 10 is improved.

【0017】以上のように、ヒートシンク10の放熱性
が向上することにより、ヒートシンクの容量を小さくす
ることができ、回路内蔵型モールドモータの小型化を行
うことができる。または、回路内蔵型モールドモータの
出力を上げて、パワーICにかかる負荷を多くしてもヒ
ートシンクの容量を大きくする必要がない。
As described above, by improving the heat radiation of the heat sink 10, the capacity of the heat sink can be reduced, and the size of the circuit-integrated molded motor can be reduced. Alternatively, it is not necessary to increase the capacity of the heat sink even if the output of the molded motor with a built-in circuit is increased to increase the load applied to the power IC.

【0018】[0018]

【発明の効果】本発明によれば、ヒートシンクの容量を
小さくすることにより、回路内蔵型モールドモータの小
型化を行うことができる。
According to the present invention, by reducing the capacity of the heat sink, it is possible to reduce the size of the circuit built-in type molded motor.

【0019】[0019]

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明におけるBLモータ内に内蔵された基板
部の拡大部分断面図。
FIG. 1 is an enlarged partial cross-sectional view of a substrate unit built in a BL motor according to the present invention.

【図2】従来おけるBLモータの側断面図。FIG. 2 is a side sectional view of a conventional BL motor.

【図3】図2におけるBLモータ内に内蔵された基板部
の拡大部分断面図。
FIG. 3 is an enlarged partial cross-sectional view of a board portion built in the BL motor in FIG. 2;

【符号の説明】[Explanation of symbols]

1、11…BLモータ(回路内臓型ブラシレスDCモー
タ) 2…プリミックス 3…固定子 4、12…基板 5…モールドフレーム 6…回転子 7…軸受 8…ボールハウジング 9…パワーIC 10…ヒートシンク 13…モールドフレーム 14…永久磁石 15…積層コア 16…絶縁材 17…巻線 18…シャフト 19…ヨーク
1, 11: BL motor (brushless DC motor with built-in circuit) 2: Premix 3: Stator 4, 12: Substrate 5: Mold frame 6: Rotor 7: Bearing 8: Ball housing 9: Power IC 10: Heat sink 13 ... mold frame 14 ... permanent magnet 15 ... laminated core 16 ... insulating material 17 ... winding 18 ... shaft 19 ... yoke

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】モールドフレーム内に、基板を内蔵し、こ
の基板に密着してヒートシンクが設けられた回路内蔵型
モールドモータにおいて、 前記ヒートシンクの面が密着している前記基板面に任意
の大きさの孔を設けたことを特徴とする回路内蔵型モー
ルドモータ。
1. A circuit built-in type motor in which a substrate is incorporated in a mold frame and a heat sink is provided in close contact with the substrate, wherein the heat sink surface has an arbitrary size on the substrate surface in close contact with the substrate. A molded motor with a built-in circuit, characterized by having holes.
JP27152096A 1996-09-20 1996-09-20 Built-in mold motor Expired - Fee Related JP3652455B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27152096A JP3652455B2 (en) 1996-09-20 1996-09-20 Built-in mold motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27152096A JP3652455B2 (en) 1996-09-20 1996-09-20 Built-in mold motor

Publications (2)

Publication Number Publication Date
JPH1098853A true JPH1098853A (en) 1998-04-14
JP3652455B2 JP3652455B2 (en) 2005-05-25

Family

ID=17501220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27152096A Expired - Fee Related JP3652455B2 (en) 1996-09-20 1996-09-20 Built-in mold motor

Country Status (1)

Country Link
JP (1) JP3652455B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108604847A (en) * 2016-02-04 2018-09-28 标立电机有限公司 For fluid pump electro-motor, be used to form different fluid pumps modular motor race with multiple this electro-motors and manufacturing method
US10291097B2 (en) 2015-05-21 2019-05-14 Canon Kabushiki Kaisha Brushless motor and apparatus using the same
US20190348892A1 (en) * 2017-01-20 2019-11-14 Mitsubishi Electric Corporation Electric motor, air conditioner, and method for producing electric motor
US10848034B2 (en) 2016-09-19 2020-11-24 Black & Decker Inc. Control and power module for brushless motor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011109861A (en) * 2009-11-19 2011-06-02 Nidec Shibaura Corp Molded motor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10291097B2 (en) 2015-05-21 2019-05-14 Canon Kabushiki Kaisha Brushless motor and apparatus using the same
CN108604847A (en) * 2016-02-04 2018-09-28 标立电机有限公司 For fluid pump electro-motor, be used to form different fluid pumps modular motor race with multiple this electro-motors and manufacturing method
JP2019506124A (en) * 2016-02-04 2019-02-28 ビューラー モーター ゲゼルシャフト ミット ベシュレンクテル ハフツング Electric motor for fluid pump, modular motor family and forming method for forming various fluid pumps having a plurality of such electric motors
US10848034B2 (en) 2016-09-19 2020-11-24 Black & Decker Inc. Control and power module for brushless motor
US10873244B2 (en) 2016-09-19 2020-12-22 Black & Decker Inc. Control and power module for brushless motor
US20190348892A1 (en) * 2017-01-20 2019-11-14 Mitsubishi Electric Corporation Electric motor, air conditioner, and method for producing electric motor
US11817740B2 (en) * 2017-01-20 2023-11-14 Mitsubishi Electric Corporation Electric motor, air conditioner, and method for producing electric motor

Also Published As

Publication number Publication date
JP3652455B2 (en) 2005-05-25

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