JP3586161B2 - motor - Google Patents

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Publication number
JP3586161B2
JP3586161B2 JP36673599A JP36673599A JP3586161B2 JP 3586161 B2 JP3586161 B2 JP 3586161B2 JP 36673599 A JP36673599 A JP 36673599A JP 36673599 A JP36673599 A JP 36673599A JP 3586161 B2 JP3586161 B2 JP 3586161B2
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JP
Japan
Prior art keywords
housing
motor
fitting portion
yoke housing
yoke
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
Application number
JP36673599A
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Japanese (ja)
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JP2001186712A (en
Inventor
博之 鈴木
忠史 安達
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.)
Asmo Co Ltd
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Asmo 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 Asmo Co Ltd filed Critical Asmo Co Ltd
Priority to JP36673599A priority Critical patent/JP3586161B2/en
Publication of JP2001186712A publication Critical patent/JP2001186712A/en
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Publication of JP3586161B2 publication Critical patent/JP3586161B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、電磁ノイズの発生を防止する回路等を構成するための電子部品をハウジング内に備えたモータに関する。
【0002】
【従来の技術】
この種のモータは、例えば、特開平7−115747号公報や、特開平11−122858号公報に開示されている。該公報のモータは、ブラシとコンミテータとの間で発生する電磁ノイズを抑制するために、該ブラシにコンデンサの一方の接続部が接続され、他方の接続部がアース端子(モータケース接続用ターミナル)を介して金属よりなるハウジング(モータケース)に接地されている。
【0003】
【発明が解決しようとする課題】
ところが、アース端子や、モータケース接続用ターミナルを使用する構成であるため、その分の部品数、組立て工数が増加し、コストが上昇するという問題があった。
【0004】
本発明は、上記問題点を解決するためになされたものであって、その目的は、部品数、組立て工数を低減して、低コスト化を図ることができるモータを提供することにある。
【0005】
【課題を解決するための手段】
上記問題点を解決するため、請求項1に記載の発明は、導電部を有するモータハウジング内に電子部品を備えたモータにおいて、前記電子部品の足を前記導電部に直接接触させて、該導電部と前記電子部品とを電気的に接続し、前記モータハウジングは、前記導電性材料よりなるヨークハウジングと樹脂材料よりなる樹脂ハウジングとからなり、前記ヨークハウジングは筒状に形成され、前記樹脂ハウジングには該ヨークハウジングに内嵌する嵌合部が設けられ、前記電子部品は前記樹脂ハウジング内に配置され、該電子部品の足を前記嵌合部の外側面に延びるようにし、前記嵌合部に、前記電子部品の足の直径より浅く形成されて前記電子部品の足を収容する溝を形成し、前記ヨークハウジングと樹脂ハウジングとの組付け時に、前記電子部品の足がヨークハウジングに接触するようにした。
【0008】
求項に記載の発明は、請求項に記載のモータにおいて、前記溝は、前記嵌合部の外周面に形成され、且つ該嵌合部の開口端部から軸方向に延びるように形成した。
【0009】
請求項に記載の発明は、請求項1または請求項2に記載のモータにおいて、前記電子部品の足は、前記嵌合部と前記ヨークハウジングとが嵌合連結される前の状態では、先端部に向かうほど前記嵌合部の外側面から外側に突出するようにした。
【0010】
請求項に記載の発明によれば、電子部品の足が導電部に直接接触して、該導電部と電子部品とが電気的に接続される。従って、電子部品を導電部に電気的接続を行うためのターミナル等の部品を必要としないないので、部品数、組立て工数が低減される。
【0011】
また、導電性材料よりなるヨークハウジングと樹脂ハウジングとの組付け時に、電子部品の足がヨークハウジングに接触する。従って、電子部品の足をヨークハウジングに接触させるための工程が必要ない。
【0012】
また、樹脂ハウジングには筒状のヨークハウジングに内嵌する嵌合部が設けられ、電子部品はその足が嵌合部の外側面に延びるように樹脂ハウジング内に配置される。従って、嵌合部とヨークハウジングとを嵌合連結するだけで、電子部品の足がヨークハウジングの内側面に接触するので、該足を接触するための工程が必要ない。
【0013】
また、電子部品の足は、嵌合部に形成された溝に収容される。従って、電子部品の足が嵌合部とヨークハウジングとの嵌合連結に悪影響を与えない。
【0016】
【発明の実施の形態】
以下、本発明を具体化した一実施の形態を図面に従って説明する。
図1は、本実施形態の減速機構付きモータを示す。同図に示すように、減速機構付きモータ1の駆動源としてのモータ部2は、金属材料よりなるヨークハウジング3、回転軸4を有する回転子5、マグネット6、ブラシ7a,7bを支持するブラシホルダ7等を備えている。ヨークハウジング3は有底筒状に形成され、該ハウジング3の底部には軸受8が固定される。軸受8は、その中心軸線がヨークハウジング3のそれと一致するように配置されている。そして、この軸受8は、回転軸4の基端部(図1における下端部)を回転可能に支持する。
【0017】
ヨークハウジング3の開口部3aには、突出した回転軸4を覆うように樹脂材料よりなる樹脂ハウジング9がネジ10により組付けられ、両ハウジング3,9によりモータハウジングが構成される。樹脂ハウジング9には、ヨークハウジング3の開口部3aに内嵌する筒状の嵌合部9aが形成される。この嵌合部9aには前記ブラシホルダ7が嵌挿され固定される。このブラシホルダ7にて支持されるブラシ7a,7bは、前記回転子5の開口部3a側に設けられるはコンミテータ5aに摺接する。
【0018】
樹脂ハウジング9内は、その内部に配置される回転軸4の一部及びウォームホイール11等を収容可能な所定形状に形成される。樹脂ハウジング9内には2つの軸受12,13が固定される。軸受12,13は、その中心軸線が嵌合部9aのそれと一致するように配置されている。この軸受12,13は、回転軸4の中央部及び先端部(図1における上端部)を回転可能に支持する。そして、回転軸4の軸受12,13間にはウォーム4aが形成され、このウォーム4aとウォームホイール11とが噛合うことにより、回転軸4と直交する方向に回転力を伝達する減速機構が構成されている。
【0019】
又、樹脂ハウジング9の嵌合部9a内には、図1及び図2に示すように、回路基板14が収容されている。回路基板14には、図5に示すように、ブラシ7a,7bとコンミテータ5aとの間での電磁ノイズの発生を防止するノイズ防止回路15が構成されている。即ち、ノイズ防止回路15は、2つの抵抗16,17及び2つのコンデンサ18,19とから構成された一般に公知の回路である。各ブラシ7a,7bは、抵抗16,17を介して電源供給を受けるための電源端子20,21に接続される。各電源端子20,21と抵抗16,17との間のノードN1,N2は、コンデンサ18,19を介してヨークハウジング3に接地される。そして、コンデンサ18,19は、ブラシ7a,7bがコンミテータ5aに摺接する際の大きな電圧変化を抑制して、該ブラシ7a,7bとコンミテータ5aとの間で電源ノイズが発生しないようにしている。
【0020】
このようなコンデンサ18,19は、それぞれ2本の線状の足18a,18b,19a,19bを備えている。尚、図3には、コンデンサ18を代表して示している。コンデンサ18,19は、回路基板14が樹脂ハウジング9の嵌合部9a内に取り付けられた時に、該嵌合部9aの内周面に近接した位置に配置される。コンデンサ18,19の一方の足18a,19aは回路基板14にそれぞれはんだ付けされ、他方の足18b,19bは嵌合部9aの内側面、開口端部及び外側面に沿って略コ字状に折り曲げられている。このとき、この他方の足18b,19bの嵌合部9aの外側面に配置される部分を接触部18c,19cとし、該接触部18c,19cは、図3に示すように、ヨークハウジング3の組付け前の状態では、先端部に向かうほど外側面から外側に突出し、弾性力を有している。
【0021】
これに対し、図4に示すように、嵌合部9aの外周面には、その開口端部から軸方向にのびる2つの溝9b,9cが形成されている。この溝9b,9cは、径方向の断面が略半円状で、その深さが前記コンデンサ18,19の足18b,19b(接触部18c,19c)の直径と等しくなるように形成されている。
【0022】
このように構成されたモータ1では、ヨークハウジング3に嵌合部9aを嵌挿する際に、コンデンサ18,19の接触部18c,19cは、先端部に向かうほど外側面から外側に突出していることから、該ハウジング3の内側面に圧接した状態で接触し、電気的に接続状態になる。このようにコンデンサ18,19の足18b,19b(接触部18c,19c)は、直接、ヨークハウジング3に接地される。
【0023】
又、このとき、接触部18c,19cは溝9b,9c内に収容される。そのため、ヨークハウジング3と嵌合部9aとの間のクリアランスを大きくする必要がないので、両ハウジング3,9が回転軸4の径方向にずれることはない。つまり、軸受8と軸受12,13との中心軸線が一致した状態で、両ハウジング3,9が組付けられる。
【0024】
上記したように、本実施の形態によれば、以下の効果を有する。
(1)コンデンサ18,19の足18b,19bがヨークハウジング3に直接接触して、該ハウジング3とコンデンサ18,19とが電気的に接続される。従って、コンデンサ18,19をヨークハウジング3に電気的接続を行うためのターミナル等の部品を必要としないので、部品数、組立て工数を低減することができる。そのため、低コスト化を図ることができる。
【0025】
(2)コンデンサ18,19の足18b,19bは、ヨークハウジング3に内嵌する嵌合部9aの外側面に延びるている。そのため、嵌合部9aとヨークハウジング3とを嵌合連結するだけで、コンデンサ18,19の足18b,19bがヨークハウジング3の内側面に接触する。従って、コンデンサ18,19の足18b,19bをヨークハウジング3に接触させるための工程が必要ないので、組立て工数を低減することができる。
【0026】
(3)接触部18c,19cは嵌合部9aの外側面に形成した溝9b,9c内に収容される。そのため、ヨークハウジング3と嵌合部9aとの間のクリアランスを大きくする必要がないので、両ハウジング3,9が回転軸4の径方向にずれることはない。従って、軸受8と軸受12,13との中心軸線が一致した状態で両ハウジング3,9を組付けることができるので、その組付けに悪影響を及ぼすことはない。
【0027】
(4)コンデンサ18,19の足18b,19bは、嵌合部9aとヨークハウジング3とが嵌合連結された時、該ハウジング3に圧接する。従って、コンデンサ18,19は、確実にヨークハウジング3に対して電気的に接続することができる。
【0028】
尚、本発明の実施の形態は、以下のように変更してもよい。
○上記実施の形態では、コンデンサ18,19の足18b,19bは線状であったが、その他の形状、例えば板状であってもよい。
【0029】
○上記実施の形態では、溝9b,9cの位置、数、断面形状は、上記実施形態に限定されるものではない。例えば、溝9b,9cの深さをコンデンサ18,19の足18b,19bの直径と等しくする必要はなく、その直径より溝を浅くしてもよい。このようにしても、コンデンサ18,19の足18b,19bは、ヨークハウジング3に圧接する。又、溝9b,9cを省略してもよい。
【0030】
○上記実施の形態では、コンデンサ18,19の足18b,19bをヨークハウジング3に接地するようにしたが、これ以外に導電部に接地するようにしてもよい。例えば、ネジ10が接地されていれば、そのネジ10にコンデンサ18,19の足18b,19bを接触するようにしてもよい。
【0031】
○上記実施の形態では、モータ1におけるコンデンサ18,19の接地を行ったが、例えば、チョークコイルや抵抗等のその他の電子部品を備えたモータにおいて、その電子部品の接地を行う場合に実施してもよい。つまり、モータは、ブラシを有するモータに限るものではない。又、ヨークハウジング3以外に導電部を有するモータハウジングを持ったモータであってもよい。更に、減速機構は特に備えている必要はない。
【0032】
【発明の効果】
以上詳述したように、本発明によれば、部品数、組立て工数を低減して、低コスト化を図ることができるモータを提供することができる。
【図面の簡単な説明】
【図1】本実施形態のモータの一部を切り欠いた平面図である。
【図2】図1のA−A断面図である。
【図3】モータ組付け前の要部拡大図である。
【図4】嵌合部の斜視図である。
【図5】ノイズ防止回路の回路図である。
【符号の説明】
3…導電部としてのヨークハウジング、5a…コンミテータ、7a,7b…ブラシ、9…樹脂ハウジング、9a…嵌合部、9b,9c…溝、18,19…電子部品としてのコンデンサ、18b,19b…足。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a motor including an electronic component in a housing for forming a circuit or the like for preventing generation of electromagnetic noise.
[0002]
[Prior art]
This type of motor is disclosed in, for example, JP-A-7-115747 and JP-A-11-122858. In the motor disclosed in this publication, one of the connection portions of a capacitor is connected to the brush and the other connection portion is a ground terminal (terminal for connecting the motor case) in order to suppress electromagnetic noise generated between the brush and the commutator. Through a metal housing (motor case).
[0003]
[Problems to be solved by the invention]
However, since the configuration uses the ground terminal and the motor case connection terminal, there is a problem that the number of parts and the number of assembling steps are increased and the cost is increased.
[0004]
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a motor capable of reducing the number of parts and the number of assembling steps to reduce the cost.
[0005]
[Means for Solving the Problems]
In order to solve the above problem, the invention according to claim 1 is directed to a motor provided with an electronic component in a motor housing having a conductive portion, wherein a foot of the electronic component is brought into direct contact with the conductive portion, and A motor housing comprising a yoke housing made of the conductive material and a resin housing made of a resin material, wherein the yoke housing is formed in a cylindrical shape, and the resin housing Is provided with a fitting portion which is fitted in the yoke housing, the electronic component is disposed in the resin housing, and a foot of the electronic component extends to an outer surface of the fitting portion. to the at electronic component is shallower than the diameter of the legs to form a groove for accommodating the legs of the electronic component, assembly of said yoke housing and the resin housing, the electronic Goods of the foot is in contact with the yoke housing.
[0008]
The invention described in Motomeko 2 is the motor of claim 1, wherein the groove is the formed on the outer peripheral surface of the fitting portion, and so as to extend axially from the open end of the fitting portion Formed.
[0009]
According to a third aspect of the present invention, in the motor according to the first or second aspect , the foot of the electronic component has a tip in a state before the fitting portion and the yoke housing are fitted and connected. The outer portion of the fitting portion protrudes outward toward the portion.
[0010]
According to the invention described in the claims, the legs of the electronic components in direct contact with the conductive portion, the conductive portion and the electronic component are electrically connected. Therefore, since there is no need for a component such as a terminal for electrically connecting the electronic component to the conductive portion, the number of components and the number of assembling steps are reduced.
[0011]
Also , when the yoke housing made of a conductive material and the resin housing are assembled, the foot of the electronic component comes into contact with the yoke housing. Therefore, there is no need for a step for bringing the feet of the electronic component into contact with the yoke housing.
[0012]
Further , the resin housing is provided with a fitting portion that fits inside the cylindrical yoke housing, and the electronic component is arranged in the resin housing so that its feet extend to the outer surface of the fitting portion. Therefore, only by fittingly connecting the fitting portion and the yoke housing, the foot of the electronic component comes into contact with the inner surface of the yoke housing, so that a step for contacting the foot is not required.
[0013]
Also , the feet of the electronic component are accommodated in grooves formed in the fitting portion. Therefore, the foot of the electronic component does not adversely affect the fitting connection between the fitting portion and the yoke housing.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 shows a motor with a speed reduction mechanism of the present embodiment. As shown in FIG. 1, a motor unit 2 as a drive source of a motor 1 with a speed reduction mechanism includes a yoke housing 3 made of a metal material, a rotor 5 having a rotating shaft 4, a magnet 6, and brushes for supporting brushes 7a and 7b. It has a holder 7 and the like. The yoke housing 3 is formed in a bottomed cylindrical shape, and a bearing 8 is fixed to the bottom of the housing 3. The bearing 8 is arranged so that its central axis coincides with that of the yoke housing 3. The bearing 8 rotatably supports the base end (the lower end in FIG. 1) of the rotating shaft 4.
[0017]
A resin housing 9 made of a resin material is attached to the opening 3a of the yoke housing 3 by a screw 10 so as to cover the protruding rotary shaft 4, and the two housings 3 and 9 constitute a motor housing. The resin housing 9 is formed with a cylindrical fitting portion 9a that fits inside the opening 3a of the yoke housing 3. The brush holder 7 is fitted and fixed to the fitting portion 9a. The brushes 7a and 7b supported by the brush holder 7 are in sliding contact with a commutator 5a provided on the opening 3a side of the rotor 5.
[0018]
The inside of the resin housing 9 is formed in a predetermined shape capable of accommodating a part of the rotating shaft 4 and the worm wheel 11 disposed therein. Two bearings 12 and 13 are fixed in the resin housing 9. The bearings 12 and 13 are arranged such that the center axis thereof coincides with that of the fitting portion 9a. The bearings 12 and 13 rotatably support a central portion and a tip portion (an upper end portion in FIG. 1) of the rotating shaft 4. A worm 4a is formed between the bearings 12 and 13 of the rotary shaft 4, and the worm 4a meshes with the worm wheel 11 to form a speed reduction mechanism that transmits a rotational force in a direction orthogonal to the rotary shaft 4. Have been.
[0019]
Further, a circuit board 14 is accommodated in the fitting portion 9a of the resin housing 9 as shown in FIGS. As shown in FIG. 5, a noise prevention circuit 15 for preventing generation of electromagnetic noise between the brushes 7a and 7b and the commutator 5a is formed on the circuit board 14. That is, the noise prevention circuit 15 is a generally known circuit including two resistors 16 and 17 and two capacitors 18 and 19. The brushes 7a and 7b are connected to power terminals 20 and 21 for receiving power supply via resistors 16 and 17, respectively. Nodes N1 and N2 between the power terminals 20 and 21 and the resistors 16 and 17 are grounded to the yoke housing 3 via capacitors 18 and 19. The capacitors 18 and 19 suppress a large voltage change when the brushes 7a and 7b are in sliding contact with the commutator 5a, so that power supply noise is not generated between the brushes 7a and 7b and the commutator 5a.
[0020]
Such capacitors 18 and 19 have two linear legs 18a, 18b, 19a and 19b, respectively. FIG. 3 shows the capacitor 18 as a representative. When the circuit board 14 is mounted in the fitting portion 9a of the resin housing 9, the capacitors 18 and 19 are arranged at positions near the inner peripheral surface of the fitting portion 9a. One foot 18a, 19a of each of the capacitors 18, 19 is soldered to the circuit board 14, and the other foot 18b, 19b is substantially U-shaped along the inner surface, the opening end, and the outer surface of the fitting portion 9a. It is bent. At this time, portions of the other feet 18b, 19b disposed on the outer surface of the fitting portion 9a are referred to as contact portions 18c, 19c, and the contact portions 18c, 19c are, as shown in FIG. In a state before the assembling, the elastic member protrudes outward from the outer surface toward the distal end, and has an elastic force.
[0021]
On the other hand, as shown in FIG. 4, two grooves 9b and 9c are formed on the outer peripheral surface of the fitting portion 9a so as to extend in the axial direction from the opening end. The grooves 9b and 9c are formed such that the cross section in the radial direction is substantially semicircular and the depth thereof is equal to the diameter of the feet 18b and 19b (contact portions 18c and 19c) of the capacitors 18 and 19. .
[0022]
In the motor 1 configured as described above, when the fitting portion 9a is fitted into the yoke housing 3, the contact portions 18c and 19c of the capacitors 18 and 19 protrude outward from the outer surface toward the tip. Therefore, the housing 3 comes into contact with the inner surface of the housing 3 while being pressed against the inner surface of the housing 3 and is electrically connected. In this way, the feet 18b, 19b (contact portions 18c, 19c) of the capacitors 18, 19 are directly grounded to the yoke housing 3.
[0023]
At this time, the contact portions 18c, 19c are accommodated in the grooves 9b, 9c. Therefore, there is no need to increase the clearance between the yoke housing 3 and the fitting portion 9a, so that the two housings 3, 9 do not shift in the radial direction of the rotating shaft 4. That is, the two housings 3 and 9 are assembled in a state where the center axes of the bearing 8 and the bearings 12 and 13 are aligned.
[0024]
As described above, the present embodiment has the following effects.
(1) The feet 18b and 19b of the capacitors 18 and 19 are in direct contact with the yoke housing 3, and the housing 3 and the capacitors 18 and 19 are electrically connected. Therefore, since components such as terminals for electrically connecting the capacitors 18 and 19 to the yoke housing 3 are not required, the number of components and the number of assembling steps can be reduced. Therefore, cost reduction can be achieved.
[0025]
(2) The feet 18b and 19b of the capacitors 18 and 19 extend to the outer surface of the fitting portion 9a that fits inside the yoke housing 3. Therefore, the legs 18b and 19b of the capacitors 18 and 19 contact the inner surface of the yoke housing 3 only by fitting and connecting the fitting portion 9a and the yoke housing 3. Therefore, since a step for bringing the feet 18b, 19b of the capacitors 18, 19 into contact with the yoke housing 3 is not required, the number of assembling steps can be reduced.
[0026]
(3) The contact portions 18c, 19c are accommodated in grooves 9b, 9c formed on the outer surface of the fitting portion 9a. Therefore, there is no need to increase the clearance between the yoke housing 3 and the fitting portion 9a, so that the two housings 3, 9 do not shift in the radial direction of the rotating shaft 4. Therefore, the housings 3 and 9 can be assembled in a state where the center axes of the bearings 8 and the bearings 12 and 13 coincide with each other, so that the assembly is not adversely affected.
[0027]
(4) The feet 18b, 19b of the capacitors 18, 19 are pressed against the housing 3 when the fitting portion 9a and the yoke housing 3 are fitted and connected. Therefore, the capacitors 18 and 19 can be reliably electrically connected to the yoke housing 3.
[0028]
Note that the embodiment of the present invention may be modified as follows.
In the above embodiment, the legs 18b and 19b of the capacitors 18 and 19 are linear, but may have other shapes, for example, plate shapes.
[0029]
In the above embodiment, the positions, the numbers, and the cross-sectional shapes of the grooves 9b and 9c are not limited to the above embodiment. For example, the depth of the grooves 9b, 9c need not be equal to the diameter of the feet 18b, 19b of the capacitors 18, 19, and the grooves may be shallower than the diameter. Even in this case, the feet 18b and 19b of the capacitors 18 and 19 are pressed against the yoke housing 3. Further, the grooves 9b and 9c may be omitted.
[0030]
In the above embodiment, the feet 18b and 19b of the capacitors 18 and 19 are grounded to the yoke housing 3, but may be grounded to a conductive part. For example, if the screw 10 is grounded, the feet 18b and 19b of the capacitors 18 and 19 may be brought into contact with the screw 10.
[0031]
In the above embodiment, the capacitors 18 and 19 of the motor 1 are grounded. However, for example, in a motor having other electronic components such as a choke coil and a resistor, the motor 1 is grounded when the electronic components are grounded. You may. That is, the motor is not limited to a motor having a brush. Further, a motor having a motor housing having a conductive portion other than the yoke housing 3 may be used. Further, the speed reduction mechanism does not need to be particularly provided.
[0032]
【The invention's effect】
As described in detail above, according to the present invention, it is possible to provide a motor that can reduce the number of parts and the number of assembling steps, and can reduce the cost.
[Brief description of the drawings]
FIG. 1 is a plan view in which a part of a motor according to an embodiment is cut away.
FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is an enlarged view of a main part before assembling the motor.
FIG. 4 is a perspective view of a fitting portion.
FIG. 5 is a circuit diagram of a noise prevention circuit.
[Explanation of symbols]
3 ... Yoke housing as conductive part, 5a ... commutator, 7a, 7b ... brush, 9 ... resin housing, 9a ... fitting part, 9b, 9c ... groove, 18, 19 ... capacitors as electronic parts, 18b, 19b ... leg.

Claims (3)

導電部(3)を有するモータハウジング内に電子部品(18,19)を備えたモータにおいて、
前記電子部品(18,19)の足(18b,19b)を前記導電部(3)に直接接触させて、該導電部(3)と前記電子部品(18,19)とを電気的に接続し、
前記モータハウジングは、導電性材料よりなるヨークハウジング(3)と樹脂材料よりなる樹脂ハウジング(9)とからなり、
前記ヨークハウジング(3)は筒状に形成され、前記樹脂ハウジング(9)には該ヨークハウジング(3)に内嵌する嵌合部(9a)が設けられ、
前記電子部品(18,19)は前記樹脂ハウジング(9)内に配置され、該電子部品(18,19)の足(18b,19b)を前記嵌合部(9a)の外側面に延びるようにし、前記嵌合部(9a)に、前記電子部品(18,19)の足(18b,19b)の直径より浅く形成されて前記電子部品(18,19)の足(18b,19b)を収容する溝(9b,9c)を形成し、
前記ヨークハウジング(3)と樹脂ハウジング(9)との組付け時に、前記電子部品(18,19)の足(18b,19b)がヨークハウジング(3)に接触するようにしたことを特徴とするモータ。
In a motor provided with electronic components (18, 19) in a motor housing having a conductive portion (3),
The feet (18b, 19b) of the electronic components (18, 19) are brought into direct contact with the conductive portion (3) to electrically connect the conductive portion (3) and the electronic components (18, 19). ,
The motor housing includes a yoke housing (3) made of a conductive material and a resin housing (9) made of a resin material.
The yoke housing (3) is formed in a tubular shape, and the resin housing (9) is provided with a fitting portion (9a) that fits inside the yoke housing (3),
The electronic components (18, 19) are arranged in the resin housing (9) so that the feet (18b, 19b) of the electronic components (18, 19) extend to the outer surface of the fitting portion (9a). The foot (18b, 19b) of the electronic component (18, 19) is formed in the fitting portion (9a) to be shallower than the diameter of the foot (18b, 19b) of the electronic component (18, 19). Forming grooves (9b, 9c),
When the yoke housing (3) and the resin housing (9) are assembled, the feet (18b, 19b) of the electronic components (18, 19) come into contact with the yoke housing (3). motor.
請求項1に記載のモータにおいて、
前記溝(9b,9c)は、前記嵌合部(9a)の外周面に形成され、且つ該嵌合部(9a)の開口端部から軸方向に延びるように形成したことを特徴とするモータ。
The motor according to claim 1,
The motor is characterized in that the grooves (9b, 9c) are formed on the outer peripheral surface of the fitting part (9a) and extend in the axial direction from the open end of the fitting part (9a). .
請求項1または請求項2に記載のモータにおいて、
前記電子部品(18,19)の足(18b,19b)は、前記嵌合部(9a)と前記ヨークハウジング(3)とが嵌合連結される前の状態では、先端部に向かうほど前記嵌合部(9a)の外側面から外側に突出するようにしたことを特徴とするモータ。
In the motor according to claim 1 or 2,
In a state before the fitting portion (9a) and the yoke housing (3) are fitted and connected, the foot (18b, 19b) of the electronic component (18, 19) becomes closer to the distal end portion. A motor characterized in that it protrudes outward from the outer surface of the joint (9a) .
JP36673599A 1999-12-24 1999-12-24 motor Expired - Fee Related JP3586161B2 (en)

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