JPH09172749A - Molded motor - Google Patents
Molded motorInfo
- Publication number
- JPH09172749A JPH09172749A JP33001895A JP33001895A JPH09172749A JP H09172749 A JPH09172749 A JP H09172749A JP 33001895 A JP33001895 A JP 33001895A JP 33001895 A JP33001895 A JP 33001895A JP H09172749 A JPH09172749 A JP H09172749A
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- printed circuit
- electronic component
- printed board
- protective member
- 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
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/284—Applying non-metallic protective coatings for encapsulating mounted components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/301—Assembling printed circuits with electric components, e.g. with resistor by means of a mounting structure
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は主にエアコンの室内
用ファンなどを駆動するためのモールドモータに関し、
特に固定子に内蔵される電子部品の保護構造に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a molded motor for driving an indoor fan of an air conditioner,
In particular, the present invention relates to a protection structure for electronic components built in a stator.
【0002】[0002]
【従来の技術】近年、家庭用エアコンなど空調機におい
ては、コンプレッサの能力制御をすることが主流になっ
ている。そして、これに対応して熱交換器への送風量も
幅広く多段階に調整することと入力低減が要求され、こ
れら要望を満たすものとして従来から使われてきたファ
ン駆動系として誘導電動機に替わって、速度調整が容易
でかつ高効率である無刷子電動機を直流電源で運転する
方式が採用されている。また、騒音振動の低減という消
費者の要求に対し、従来の鋼板枠に替わって電気絶縁性
を有する熱硬化性樹脂を成形固化してモータ枠を形成す
る、いわゆるモールドモータの需要が増加している。両
者の長所を兼ねそなえたモールドタイプの無刷子電動機
の需要が激増している。その際、駆動回路は前記固定子
に埋設するので熱硬化性樹脂の成形時の流動圧に対して
素子が動くことによって、素子とリードの付け根に損傷
の起きやすい構造の部品、たとえば電解コンデンサ,ト
ランジスタなどを埋設する必要があり保護対策を施さね
ばならない。2. Description of the Related Art In recent years, it has become mainstream to control the capacity of a compressor in an air conditioner such as a home air conditioner. Corresponding to this, it is required to widely adjust the amount of air blown to the heat exchanger in multiple stages and to reduce the input, and instead of the induction motor as the fan drive system that has been conventionally used to satisfy these demands. A method of operating a brushless motor, which is easy to adjust speed and highly efficient, with a DC power supply is adopted. In addition, in response to consumer demand for reduction of noise and vibration, the demand for so-called molded motors, which form a motor frame by molding and solidifying thermosetting resin having electrical insulation instead of the conventional steel plate frame, has increased. There is. Demand for mold-type brushless electric motors, which combine the advantages of both, is increasing rapidly. At this time, since the driving circuit is embedded in the stator, the element moves with respect to the fluid pressure during molding of the thermosetting resin, and thus the root of the element and the lead are easily damaged, for example, an electrolytic capacitor, It is necessary to embed transistors etc. and protect them.
【0003】従来例をアルミ電解コンデンサの保護構造
を代表として図7に保護構造の斜視図を示す。図7にお
いて、プリント基板4にはんだ付けにて装着されたアル
ミ電解コンデンサ12をモータ枠を形成する熱硬化性樹
脂の成形時の約150℃にて軟化しない耐熱性の強い、
かつアルミ電解コンデンサ12を覆うことが可能な粘度
の高いエポキシ系接着剤18にて固定している。FIG. 7 shows a perspective view of a protective structure of a conventional example as a representative of the protective structure of an aluminum electrolytic capacitor. In FIG. 7, the aluminum electrolytic capacitor 12 mounted on the printed circuit board 4 by soldering does not soften at about 150 ° C. during molding of the thermosetting resin forming the motor frame and has high heat resistance,
Moreover, the aluminum electrolytic capacitor 12 is fixed with an epoxy adhesive 18 having a high viscosity capable of covering it.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の構成では、次のような問題点を有していた。However, the above-mentioned conventional configuration has the following problems.
【0005】1.耐熱性の強いかつ粘度の高い接着剤は
一般的に硬化温度が高く生産台数,製品の体格に見合う
乾燥炉などが必要となる。[0005] 1. Adhesives with strong heat resistance and high viscosity generally require a drying oven that has a high curing temperature and is suitable for the number of units produced and the size of the product.
【0006】2.硬化時間の短い前記接着剤は、使用可
能時間が短く、接着剤の廃棄分が多くなりコスト高とな
る。[0006] 2. The adhesive having a short curing time has a short usable time, a large amount of the adhesive is discarded, and the cost is high.
【0007】3.接着剤の塗布,乾燥時間を要し、生産
性,作業性が悪い。 4.接着剤を一様に塗布できないので他の構造部品と干
渉する危険性があり、またそれを避けるためにあらかじ
め大きなプリント基板スペースを取る必要があるために
モータ形状が大きくなる。[0007] 3. Adhesive application and drying time are required, resulting in poor productivity and workability. 4. Since the adhesive cannot be applied uniformly, there is a risk of interfering with other structural parts, and in order to avoid it, it is necessary to take a large printed circuit board space in advance, resulting in a large motor shape.
【0008】本発明は上記従来の問題点を解決するもの
で、熱硬化性樹脂の成形時の流動圧から、駆動回路部品
を容易に保護できるモールドモータを提供することを目
的とする。SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a molded motor which can easily protect drive circuit components from a fluid pressure during molding of a thermosetting resin.
【0009】[0009]
【課題を解決するための手段】この目的を達成するため
に本発明は、プリント基板に装着される電子部品と概略
同形状の凹部を持ちプリント基板との位置決め、および
取り付け固定用の突起を有する電子部品保護部材を介し
て電子部品をプリント基板に固定する構造とする。In order to achieve this object, the present invention has a projection having a recess having substantially the same shape as that of an electronic component mounted on a printed circuit board, positioning the printed circuit board, and mounting and fixing the same. The electronic component is fixed to the printed circuit board via the electronic component protection member.
【0010】[0010]
【発明の実施の形態】本発明の請求項1に記載の発明
は、固定子鉄心と、前記固定子鉄心に絶縁層を介して巻
装された巻線と、位置センサおよび駆動回路用部品を実
装したプリント基板をそなえ、前記各部を電気絶縁性を
有する熱硬化性樹脂で一般的に成形固化し、前記樹脂中
に埋没してなるモールドモータにおいて、前記プリント
基板に装着された電子部品を略同形状の凹部を有する電
気部品保護部材を介してプリント基板に固定したもので
あり、絶縁層を介して巻線が巻装された固定子鉄心と、
位置センサおよび駆動回路用部品を実装したプリント基
板とを電気絶縁性を有する熱硬化性樹脂で一体的に成形
する際に、熱硬化性樹脂の流動による圧力で電子部品が
移動することを防止できるので電子部品のリード線の付
根近くを損傷から保護できるという作用を有する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention comprises a stator core, a winding wound around the stator core via an insulating layer, a position sensor and a drive circuit component. In a molded motor having a mounted printed circuit board, each of the parts is generally molded and solidified with a thermosetting resin having electrical insulation, and embedded in the resin, an electronic component mounted on the printed circuit board is substantially omitted. It is fixed to a printed circuit board via an electric component protection member having a recess of the same shape, and a stator core in which windings are wound via an insulating layer,
When integrally molding a position sensor and a printed circuit board on which a drive circuit component is mounted with a thermosetting resin having electrical insulation properties, it is possible to prevent electronic components from moving due to pressure caused by the flow of the thermosetting resin. Therefore, the vicinity of the root of the lead wire of the electronic component can be protected from damage.
【0011】請求項2に記載の発明は、請求項1に記載
の発明において電子部品保護部材はプリント基板との位
置決めおよび固定用突起を複数個有する構成としたもの
であり、電子部品保護部材を簡単にプリント基板に位置
決め固定できるという作用を有する。According to a second aspect of the present invention, in the first aspect of the invention, the electronic component protection member has a plurality of projections for positioning and fixing to the printed circuit board. It has an effect that it can be easily positioned and fixed to the printed circuit board.
【0012】請求項3に記載の発明は、請求項1に記載
の発明において電子部品保護部材の突起を金属ピンにて
構成したものであり、金属の材質を銅,真鍮,錫メッキ
材などのはんだ付け可能な材質とすることで、電子部品
の端子をはんだによりプリント基板に接続する際に同時
に電子部品保護部材もプリント基板に固定できるという
作用を有する。According to a third aspect of the present invention, in the first aspect of the invention, the projection of the electronic component protecting member is formed by a metal pin, and the metal material is copper, brass, tin-plated material, or the like. The use of a solderable material has the effect that the electronic component protection member can be fixed to the printed circuit board at the same time when the terminals of the electronic component are connected to the printed circuit board by soldering.
【0013】以下本発明の一実施の形態について、図面
を参照しながら説明する。図1は、本発明の無刷子電動
機の固定子巻線組立図である。図1において固定子鉄心
1は鉄板の積層で構成され、鉄心絶縁2が固定子鉄心1
との一体成形または成形品の鉄心への挿入により形成さ
れている。鉄心絶縁2の施された固定子鉄心1の歯部1
aに対して巻線3が巻装されている。この時、鉄心絶縁
2のシュラウド部2a,2bが巻線3が崩れるのを防止
し、同時にシュラウド部2aの内径面にはセンサ固定台
8挿入のための溝2cが設けられている。一方プリント
基板4はその外周に巻線引掛溝4aや巻線端巻付け突起
4bを有しながらも略ドーナツ状に形成してあり、これ
に対してドライバーIC5,パワートランジスタアレー
6aおよび6bの主要3部品が略等分ピッチでかつ略放
射状に配置されている。An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an assembly diagram of a stator winding of a brushless motor of the present invention. In FIG. 1, the stator core 1 is composed of laminated iron plates, and the core insulation 2 is the stator core 1.
It is formed by integral molding with or by inserting the molded product into the iron core. Tooth portion 1 of stator iron core 1 provided with iron core insulation 2
The winding 3 is wound around a. At this time, the shroud portions 2a and 2b of the iron core insulation 2 prevent the winding 3 from collapsing, and at the same time, the inner surface of the shroud portion 2a is provided with a groove 2c for inserting the sensor fixing base 8. On the other hand, the printed circuit board 4 is formed in a substantially donut shape while having a winding hooking groove 4a and a winding end winding protrusion 4b on the outer periphery thereof, while the main parts of the driver IC 5, power transistor arrays 6a and 6b are formed. The three parts are arranged in a substantially equal pitch and in a substantially radial pattern.
【0014】ホール素子を利用した位置センサ7は、電
気角120度のピッチとなるよう成形されたセンサ固定
台8に挿入され、センサ固定台8とともにプリント基板
4に装着される。また、小信号トランジスタ9や固定抵
抗器10,ジャンパー線11もそれぞれプリント基板4
に装着される。また、アルミ電解コンデンサ12はアル
ミ電解コンデンサ12の外径と概略同じ大きさの凹部を
有する樹脂成形品でかつ金属ピン13a2本を有する電
子部品保護部材13とともにプリント基板4に装着され
る。さらにプリント基板4には樹脂成形時に金型内でプ
リント基板4を定位置に保持するとともに、成形後の電
動機組立時に通しボルトあるいはリベットなどを挿通す
るための穴を成形する金属ピンを挿通するための穴4c
が設けてある。The position sensor 7 using a hall element is inserted into a sensor fixing base 8 formed to have an electrical angle of 120 degrees, and is mounted on the printed circuit board 4 together with the sensor fixing base 8. In addition, the small signal transistor 9, the fixed resistor 10 and the jumper wire 11 are also respectively provided on the printed circuit board 4
Attached to. Further, the aluminum electrolytic capacitor 12 is a resin molded product having a recess having substantially the same size as the outer diameter of the aluminum electrolytic capacitor 12, and is mounted on the printed circuit board 4 together with the electronic component protection member 13 having two metal pins 13a. Further, in order to hold the printed circuit board 4 in a fixed position in the mold at the time of resin molding and to insert a metal pin for forming a hole for inserting a through bolt or a rivet at the time of assembling the electric motor after molding, the printed circuit board 4 is inserted. Hole 4c
Is provided.
【0015】さらにプリント基板4には電源供給のため
のリード線群14も取り付けられており、樹脂成形時に
リード線群14を熱と圧力から保護するための口出ブッ
シュ15がリード線群14に固定される。この時鉄心絶
縁2との位置決め用穴4dも設けられる。Further, a lead wire group 14 for supplying power is attached to the printed circuit board 4, and a lead bush 15 for protecting the lead wire group 14 from heat and pressure during resin molding is attached to the lead wire group 14. Fixed. At this time, a positioning hole 4d for the core insulation 2 is also provided.
【0016】図2および図3に一実施の形態の電子部品
保護構造の状態図を示す。図2においてプリント基板4
にはアルミ電解コンデンサ12のリード用とは別に電子
部品保護部材13の取り付け用穴が2ヶ所設けられてお
り、図3においてプリント基板4へははんだ17にて固
定される。2 and 3 are state diagrams of an electronic component protection structure according to one embodiment. In FIG. 2, the printed circuit board 4
In addition to the lead for the aluminum electrolytic capacitor 12, two mounting holes for the electronic component protection member 13 are provided, and they are fixed to the printed circuit board 4 with solder 17 in FIG.
【0017】以上のように構成した巻線済の固定子鉄心
1と部品装着済のプリント基板4は、図4の巻線完成側
面図に示すようにシュラウド部2a,2bと隣のシュラ
ウド部との間にドライバーIC5やパワートランジスタ
アレー6a,6bが位置し、シュラウド部の軸方向先端
がプリント基板面に当接されるように組合されて固定子
巻線完成品16となる。The stator core 1 with windings and the printed circuit board 4 with components mounted as described above have shroud portions 2a and 2b and adjacent shroud portions as shown in the side view of completed winding in FIG. The driver IC 5 and the power transistor arrays 6a and 6b are located between the two, and they are combined so that the axial end of the shroud portion is brought into contact with the printed circuit board surface to form the stator winding completed product 16.
【0018】図5はこの状態の斜視図で、巻線端3aは
プリント基板4の巻線引掛溝4aに引掛けた後、巻線端
巻付突起4bに巻き付けられ、はんだなどで通電固定さ
れている。FIG. 5 is a perspective view of this state. The winding end 3a is hooked in the winding hooking groove 4a of the printed circuit board 4, then wound around the winding end winding protrusion 4b, and fixed by energizing with solder or the like. ing.
【0019】図5においてはプリント基板面のプリント
配線および駆動回路用部品リード穴などは図示していな
い。以上のように構成された固定子巻線完成品16を樹
脂成形する。In FIG. 5, printed wiring on the surface of the printed circuit board and lead holes for drive circuit parts are not shown. The stator winding finished product 16 configured as described above is resin-molded.
【0020】なお、電子部品保護部材13の金属ピン1
3aを樹脂成形物とする場合は、熱圧着などによりプリ
ント基板4と固定でき、図6のごとく電子部品保護構造
が得られる。また電子部品保護部材13を金属にて構成
しても同様の効果が得られる。The metal pin 1 of the electronic component protection member 13
When 3a is a resin molded product, it can be fixed to the printed circuit board 4 by thermocompression bonding or the like, and an electronic component protection structure can be obtained as shown in FIG. The same effect can be obtained even if the electronic component protection member 13 is made of metal.
【0021】[0021]
【発明の効果】以上のように本発明の構成とすることに
より次のような効果が得られる。As described above, the following effects can be obtained by the configuration of the present invention.
【0022】1.安価なアルミ電解コンデンサが損傷な
く使用できる。 2.保護部材のプリント基板への固定がはんだ付け、あ
るいは熱圧着により容易にでき生産性,作業性が向上す
る。1. Inexpensive aluminum electrolytic capacitors can be used without damage. 2. The protection member can be easily fixed to the printed circuit board by soldering or thermocompression bonding, which improves productivity and workability.
【0023】3.保護部材の固定に関して、作業上のば
らつきがなくなり品質が向上する。3. Regarding the fixing of the protective member, there is no variation in work, and the quality is improved.
【図1】本発明の一実施の形態における固定子巻線組立
の分解斜視図FIG. 1 is an exploded perspective view of a stator winding assembly according to an embodiment of the present invention.
【図2】本発明の一実施の形態におけるアルミ電解コン
デンサの保護構造を示す分解斜視図FIG. 2 is an exploded perspective view showing a protective structure for an aluminum electrolytic capacitor according to an embodiment of the present invention.
【図3】本発明の一実施の形態におけるアルミ電解コン
デンサの電子部品保護構造の断面図FIG. 3 is a sectional view of an electronic component protection structure for an aluminum electrolytic capacitor according to an embodiment of the present invention.
【図4】本発明の一実施の形態における固定子巻線組立
の側面図FIG. 4 is a side view of the stator winding assembly according to the embodiment of the present invention.
【図5】本発明の一実施の形態における図4の固定子巻
線組立の斜視図5 is a perspective view of the stator winding assembly of FIG. 4 according to one embodiment of the present invention.
【図6】本発明の第2の実施の形態のアルミ電解コンデ
ンサ保護構造の断面図FIG. 6 is a sectional view of an aluminum electrolytic capacitor protection structure according to a second embodiment of the present invention.
【図7】従来の電子部品保護構造の斜視図FIG. 7 is a perspective view of a conventional electronic component protection structure.
1 固定子鉄心 1a 歯部 2 鉄心絶縁 2a,2b シュラウド部 2c 溝 3 巻線 4 プリント基板 4a 巻線引掛溝 4b 巻線端巻付け突起 4c 穴 4d 位置決め用穴 5 ドライバーIC 6a,6b パワートランジスタアレー 7 位置センサ 8 センサ固定台 9 小信号トランジスタ 10 固定抵抗器 11 ジャンパー線 12 アルミ電解コンデンサ 13 電子部品保護部材 13a 金属ピン 14 リード線群 15 口出ブッシュ 16 固定子巻線完成品 17 はんだ 18 接着剤 1 Stator Iron Core 1a Tooth Part 2 Iron Core Insulation 2a, 2b Shroud Part 2c Groove 3 Winding 4 Printed Circuit Board 4a Winding Hooking Groove 4b Winding End Winding Protrusion 4c Hole 4d Positioning Hole 5 Driver IC 6a, 6b Power Transistor Array 7 Position sensor 8 Sensor fixing base 9 Small signal transistor 10 Fixed resistor 11 Jumper wire 12 Aluminum electrolytic capacitor 13 Electronic component protection member 13a Metal pin 14 Lead wire group 15 Output bush 16 Stator winding finished product 17 Solder 18 Adhesive
Claims (3)
介して巻装された巻線と、位置センサおよび電動回路用
部品を実装したプリント基板をそなえ、前記各部を電気
絶縁性を有する熱硬化性樹脂で一体的に成形固化し、前
記樹脂中に埋設してなるモールドモータにおいて、前記
プリント基板に装着された電子部品を略同形状の凹部を
有する電子部品保護部材を介してプリント基板に固定し
てなるモールドモータ。1. A stator core, a winding wound around the stator core via an insulating layer, a printed circuit board on which a position sensor and components for an electric circuit are mounted, and each of the parts is electrically insulated. In a mold motor integrally molded and solidified with a thermosetting resin, and embedded in the resin, an electronic component mounted on the printed circuit board is printed through an electronic component protection member having a recess of substantially the same shape. Molded motor fixed to the board.
置決めおよび固定用突起を複数個有する請求項1記載の
モールドモータ。2. The molded motor according to claim 1, wherein the electronic component protection member has a plurality of projections for positioning and fixing to the printed circuit board.
成した請求項1記載のモールドモータ。3. The molded motor according to claim 1, wherein the projection of the electronic component protection member is composed of a metal pin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33001895A JPH09172749A (en) | 1995-12-19 | 1995-12-19 | Molded motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33001895A JPH09172749A (en) | 1995-12-19 | 1995-12-19 | Molded motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH09172749A true JPH09172749A (en) | 1997-06-30 |
Family
ID=18227858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP33001895A Pending JPH09172749A (en) | 1995-12-19 | 1995-12-19 | Molded motor |
Country Status (1)
Country | Link |
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JP (1) | JPH09172749A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100368856B1 (en) * | 1998-06-01 | 2003-12-31 | 삼성광주전자 주식회사 | Protector fixing structure of resin pack motor |
JP2006034094A (en) * | 2004-07-13 | 2006-02-02 | Minebea Co Ltd | Isolator of stator slot |
JP2007124792A (en) * | 2005-10-27 | 2007-05-17 | Mitsuba Corp | Electric motor |
CN105680659A (en) * | 2014-12-03 | 2016-06-15 | 日本电产高科电机株式会社 | Motor and manufacturing method of same |
-
1995
- 1995-12-19 JP JP33001895A patent/JPH09172749A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100368856B1 (en) * | 1998-06-01 | 2003-12-31 | 삼성광주전자 주식회사 | Protector fixing structure of resin pack motor |
JP2006034094A (en) * | 2004-07-13 | 2006-02-02 | Minebea Co Ltd | Isolator of stator slot |
JP2007124792A (en) * | 2005-10-27 | 2007-05-17 | Mitsuba Corp | Electric motor |
CN105680659A (en) * | 2014-12-03 | 2016-06-15 | 日本电产高科电机株式会社 | Motor and manufacturing method of same |
JP2016111765A (en) * | 2014-12-03 | 2016-06-20 | 日本電産テクノモータ株式会社 | Motor and manufacturing method of the same |
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