JP2010220430A - Drip-proof structure of motor - Google Patents

Drip-proof structure of motor Download PDF

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Publication number
JP2010220430A
JP2010220430A JP2009066047A JP2009066047A JP2010220430A JP 2010220430 A JP2010220430 A JP 2010220430A JP 2009066047 A JP2009066047 A JP 2009066047A JP 2009066047 A JP2009066047 A JP 2009066047A JP 2010220430 A JP2010220430 A JP 2010220430A
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Prior art keywords
motor
drip
lead wire
connector
proof cover
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Japanese (ja)
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Masayuki Nishioka
政之 西岡
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Nidec Shibaura Corp
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Nidec Shibaura Corp
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Priority to JP2009066047A priority Critical patent/JP2010220430A/en
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Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that, conventionally, a connector has been disposed in a downward direction of a motor as a drip-proof structure of a connector section of the motor, however, in the case that a connector of equipment where the motor is mounted is above the motor, routing of a lead wire becomes long. <P>SOLUTION: In a motor wherein a lead wire for connecting the motor to equipment is connected to the motor by using connectors, a connector at the lead wire side is connected to a connector at the motor side and then the lead wire is folded and a drip-proof cover having two connected surfaces unconfined is so installed that the connectors and the lead wire may be stored therein. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明はモータのコネクタ周りの防滴構造に関するものである。   The present invention relates to a drip-proof structure around a motor connector.

固定子を樹脂で一体にモールドし、フレームを形成したモールドモータにおいて、コネクタ周りに防滴カバーを取り付けた構成は従来から知られている。(特許文献1参照)   2. Description of the Related Art Conventionally, in a molded motor in which a stator is molded integrally with a resin and a frame is formed, a configuration in which a drip-proof cover is attached around a connector is known. (See Patent Document 1)

また、固定子を樹脂で一体にモールドし、フレームを形成したモールドモータにおいて、リード線を樹脂フレーム中にインサートして外部へ引き出した構成は従来より知られている。(特許文献2参照)   Further, in a molded motor in which a stator is integrally molded with a resin and a frame is formed, a configuration in which a lead wire is inserted into a resin frame and pulled out to the outside is conventionally known. (See Patent Document 2)

特開平06-327181JP 06-327181 特開平03-218239JP 03-218239

従来、エアコン用の室外機など結露が発生しやすい場所で使うモータで、モータにコネクタを取り付けるタイプの場合、コネクタが外部に露出しているため水滴や埃がかかりやすく、コネクタの端子が漏電する可能性がある。そのため、特許文献1のようにモータを機器に取り付ける場合、コネクタ部分を下方に向けることでモータ本体が上方からの水滴を防ぎ、外側にカバーを設けることで横方向からの水滴を防ぐことで、コネクタの防滴構造としている。   Conventional motors used in locations where condensation is likely to occur, such as outdoor units for air conditioners. When a connector is attached to the motor, the connector is exposed to the outside, so water drops and dust are likely to be applied, and the connector terminals leak. there is a possibility. Therefore, when attaching the motor to the device as in Patent Document 1, the motor body prevents water droplets from above by directing the connector part downward, and by providing a cover on the outside to prevent water droplets from the lateral direction, The connector has a drip-proof structure.

しかしながら、特許文献1の構成は、コネクタが下方に取り付けられているため、リード線の機器取付側がモータより上方にある場合、リード線の引き回しが長くなるという問題がある。特許文献1の構成のモータのコネクタ側を上方に向けた場合、上方にはカバーが設けられていないため防滴構造としては意味をなさない。   However, the configuration of Patent Document 1 has a problem that since the connector is attached below, when the device attachment side of the lead wire is above the motor, the lead wire becomes long. When the connector side of the motor having the configuration of Patent Document 1 is directed upward, it does not make sense as a drip-proof structure because no cover is provided on the upper side.

また、モータに直接取り付けるカバーとは別に、モータを取り付けるモータ取付台から防水壁を設けて防滴構造を設ける方法があるが、防水壁を新たに設けなければならず、また、防水壁にあるところにモータを設置する必要があるため、モータ設置のレイアウトの自由度が低くなる問題がある。   In addition to the cover directly attached to the motor, there is a method of providing a waterproof wall by providing a waterproof wall from the motor mounting base to which the motor is attached. However, a waterproof wall must be newly provided, and there is a waterproof wall. However, since it is necessary to install a motor, there is a problem that the degree of freedom in layout of motor installation is lowered.

また、特許文献2の構成のようにリード線を樹脂フレーム中にインサートして外部へ引き出す構成の場合、コネクタ端子が露出していないため水滴がかかることによる漏電の問題は無いが、リード線をフレーム中にインサートしているためリード線を傷付けてしまう問題がある。特に樹脂で固定子を覆ってフレームを形成するモールドモータの場合、成形時の熱でリード線に傷がつきやすい。   Further, in the case of the configuration in which the lead wire is inserted into the resin frame and pulled out to the outside as in the configuration of Patent Document 2, there is no problem of electric leakage due to water drops because the connector terminal is not exposed. There is a problem that the lead wire is damaged because it is inserted in the frame. In particular, in the case of a molded motor in which a stator is covered with a resin to form a frame, the lead wire is easily damaged by heat during molding.

本発明は、上記従来の問題を鑑みて、リード線をコネクタで接続するモータの防滴構造において、リード線の取り回しの短い構造を提供するものである。   In view of the above-described conventional problems, the present invention provides a drip-proof structure for a motor in which lead wires are connected by a connector, with a short lead wire handling structure.

請求項1の発明は、機器接続用のリード線をコネクタにより接続するモータにおいて、前記リード線側コネクタをモータ側コネクタに接続後、リード線を折り曲げ、連接する2面が開放された防滴カバーを前記コネクタ及びリード線が収納されるように取り付けたことを特徴とするモータを提供する。   According to a first aspect of the present invention, in the motor in which the lead wire for connecting the device is connected by the connector, the lead wire side connector is connected to the motor side connector, the lead wire is bent, and the drip-proof cover in which the two surfaces connected are opened. A motor is provided in which the connector and lead wires are accommodated.

請求項2の発明は、前記防滴カバーの1面は半開放とし、前記リード線は山谷状に折り曲げられ、前記半開放面からリード線が導出されることを特徴とする請求項1記載のモータを提供する。   The invention according to claim 2 is characterized in that one surface of the drip-proof cover is semi-opened, the lead wire is bent in a mountain-like shape, and the lead wire is led out from the semi-open surface. Provide a motor.

請求項3の発明は、前記モータは固定子を樹脂で覆ったモールドモータである請求項1或いは2記載のモータを提供する。   A third aspect of the present invention provides the motor according to the first or second aspect, wherein the motor is a molded motor having a stator covered with resin.

請求項4の発明は、前記モータフレームに防滴カバー取付口を形成し、前記防滴カバーを該取付口に取り付けたことを特徴とする請求項1乃至3記載のモータを提供する。   According to a fourth aspect of the present invention, there is provided the motor according to any one of the first to third aspects, wherein a drip-proof cover attaching port is formed in the motor frame, and the drip-proof cover is attached to the attaching port.

本発明のモータであると、リード線をコネクタで接続する方法のモータにおいて、コネクタ周りの防滴を図ることができると同時に、リード線の取り回しを短くすることができる。また、モータにカバーを取り付ける方法であるため、取付台に防滴構造を設ける必要がないため部材費が低減できると共に、取付台の防滴構造によらずにモータを配置できるためレイアウトの自由度が高い設計ができる。   In the motor of the present invention, in the motor in which the lead wire is connected by the connector, drip-proofing around the connector can be achieved, and at the same time, the handling of the lead wire can be shortened. In addition, since it is a method of attaching a cover to the motor, it is not necessary to provide a drip-proof structure on the mounting base, so that the material cost can be reduced, and the motor can be arranged without depending on the drip-proof structure of the mounting base, so the degree of freedom in layout High design is possible.

本発明の実施例1のモータの断面図である。It is sectional drawing of the motor of Example 1 of this invention. 本発明の実施例1のモータの正面図である。It is a front view of the motor of Example 1 of the present invention. 本発明の実施例1の防滴カバーの取り付け前を示した図である。It is the figure which showed the state before attachment of the drip-proof cover of Example 1 of this invention. 本発明の実施例1の防滴カバーの取り付け後を示した図である。It is the figure which showed the attachment after the drip-proof cover of Example 1 of this invention. 本発明の実施例2のモータの断面図である。It is sectional drawing of the motor of Example 2 of this invention. 本発明の実施例2のモータの正面図である。It is a front view of the motor of Example 2 of the present invention. 本発明の実施例2の防滴カバーの取り付け前を示した図である。It is the figure which showed the state before attachment of the drip-proof cover of Example 2 of this invention. 本発明の実施例2の防滴カバーの取り付け後を示した図である。It is the figure which showed the attachment after the drip-proof cover of Example 2 of this invention.

以下、図1〜8を用いて、本発明の実施の形態について詳細に説明する。   Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS.

図1より、本発明のモータ1は、抜き板を積層した鉄心2に巻線3を巻装した固定子4を、モールド樹脂で覆って、モータフレーム5と一体に形成したものである。また、ブラシレスモータ等の制御基板を必要とするモータでは、制御基板も樹脂で覆われている。制御基板からはフレーム外へとリード線6が延びている。   As shown in FIG. 1, a motor 1 according to the present invention is formed integrally with a motor frame 5 by covering a stator 4 in which a winding 3 is wound around an iron core 2 in which punched plates are laminated with a mold resin. In a motor that requires a control board such as a brushless motor, the control board is also covered with resin. Lead wires 6 extend from the control board to the outside of the frame.

本発明のモータは、固定子をモールド樹脂で覆ってフレームと一体に形成したモールドモータを例に説明するが、フレームが鋼板性のモータに対して本発明の防滴カバーを用いても良い。また、ACモータなど制御基板を必要としないモータについては、固定子の端末線から直接リード線が延びるようにしても良い。   The motor of the present invention will be described by taking as an example a molded motor in which the stator is covered with a mold resin and formed integrally with the frame. However, the drip-proof cover of the present invention may be used for a motor having a steel plate frame. For motors that do not require a control board such as an AC motor, the lead wires may extend directly from the terminal wires of the stator.

図1,2より、本発明のモータ1の側面にはコネクタ7aの一部がモータフレーム5に埋設され、リード線6が圧着等で取り付けられている。一方、機器(図示せず)からのリード線8の先端にはコネクタ7bが圧着等で取り付けられている。この両コネクタが接続されることにより、機器とモータ1が電気的に接続することになる。   1 and 2, a part of the connector 7a is embedded in the motor frame 5 on the side surface of the motor 1 of the present invention, and the lead wire 6 is attached by crimping or the like. On the other hand, a connector 7b is attached to the tip of a lead wire 8 from a device (not shown) by crimping or the like. By connecting both the connectors, the device and the motor 1 are electrically connected.

本発明の防滴カバー9aは箱型の形状で、連接する2面が開放した形状となっている。本発明の防滴カバー9aの材質としては、絶縁性、防滴性、生産性からプラスチックなどの合成樹脂材が適している。一方、図3より、前記コネクタ7aの周りにはコの字形状のカバー取付溝10がモータフレーム5に形成されている。   The drip-proof cover 9a of the present invention has a box shape and has a shape in which two connected surfaces are open. As a material of the drip-proof cover 9a of the present invention, a synthetic resin material such as plastic is suitable from the viewpoint of insulation, drip-proof property, and productivity. On the other hand, as shown in FIG. 3, a U-shaped cover mounting groove 10 is formed in the motor frame 5 around the connector 7a.

図3,4を用いて本発明の取付に関する説明をする。まず、本発明のコネクタ7bのリード線8をクランク状に折り曲げる。そして、コネクタ7bを覆うように前記防滴カバー9aをカバー取付溝10に嵌合する。そして、前記リード線8は防滴カバー9aの開放口11aから導出される。   The attachment of the present invention will be described with reference to FIGS. First, the lead wire 8 of the connector 7b of the present invention is bent into a crank shape. Then, the drip-proof cover 9a is fitted into the cover mounting groove 10 so as to cover the connector 7b. The lead wire 8 is led out from the opening 11a of the drip-proof cover 9a.

上記のような防滴構造は従来の構成よりも安価なものであり、また、モータにカバーを取り付ける構造であるため、モータ取付台に防滴構造を設ける必要がないため、取付台の防滴構造によらずにモータを配置できるためレイアウトの自由度が高い設計ができる。   The drip-proof structure as described above is less expensive than the conventional structure, and since the cover is attached to the motor, it is not necessary to provide a drip-proof structure on the motor mount. Since the motor can be arranged regardless of the structure, it is possible to design with a high degree of freedom in layout.

図7,8より、実施例2の防滴カバー9bは開放する2面のうち1面が半開放としている。そして、リード線8を山谷折りにしてから、コネクタ7bを覆うように防滴カバー9bを全開放面を底面にしてカバー取付溝10に取り付ける。そして、リード線8はカバー口11bから導出される。   7 and 8, the drip-proof cover 9b according to the second embodiment has one half of the two surfaces to be opened half open. Then, after the lead wire 8 is folded in a valley, the drip-proof cover 9b is attached to the cover attachment groove 10 so as to cover the connector 7b with the fully open surface as the bottom surface. The lead wire 8 is led out from the cover port 11b.

実施例2のような構造であると、防滴カバーの側面が半開放としているので、側面から水滴が浸入しにくくなる。また、リード線が山谷折りにして収納されているため、リード線を伝わって水が浸入してきても谷の部分で水滴が落ちるので、コネクタの根元に水がかかることがなくなる。よって、より防水性の優れた構造となる。   In the structure as in the second embodiment, the side surface of the drip-proof cover is half open, so that it is difficult for water droplets to enter from the side surface. Further, since the lead wire is housed in a fold-and-valley manner, even if water enters through the lead wire, a water droplet falls at the valley portion, so that the base of the connector is not splashed with water. Thus, the structure is more waterproof.

上記構成の防滴カバーの取り付け方法として、カバー取付溝10にカバー9を嵌合しているが、カバー取付溝10に接着剤を塗布して取り付ければ、防滴カバー9が確実に固着されることとなる。   As a method of attaching the drip-proof cover having the above-described configuration, the cover 9 is fitted in the cover-attaching groove 10, but if the adhesive is applied to the cover-attaching groove 10, the drip-proof cover 9 is securely fixed. It will be.

本発明の防滴カバーを用いたモータであれば、空調機の室外機や洗濯機、あるいはポンプなど水気の多い場所での使用において、有効なものである。   The motor using the drip-proof cover of the present invention is effective when used in a humid place such as an outdoor unit, a washing machine, or a pump of an air conditioner.

1 モータ
2 鉄心
3 巻線
4 固定子
5 モータフレーム
6、8 リード線
7 コネクタ
9 防滴カバー
10 カバー取付溝
1 Motor 2 Iron core 3 Winding 4 Stator 5 Motor frame 6, 8 Lead wire 7 Connector 9 Drip-proof cover 10 Cover mounting groove

Claims (4)

機器接続用のリード線をコネクタにより接続するモータにおいて、
前記リード線側コネクタをモータ側コネクタに接続後、リード線を折り曲げ、連接する2面が開放された防滴カバーを前記コネクタ及びリード線が収納されるように取り付けたことを特徴とするモータ。
In motors that connect lead wires for device connection with connectors,
A motor comprising: a drip-proof cover having two open surfaces connected to each other and attached to the connector and the lead wire so as to be accommodated after the lead wire side connector is connected to the motor side connector.
前記防滴カバーの1面は半開放とし、前記リード線は山谷状に折り曲げられ、前記半開放面からリード線が導出されることを特徴とする請求項1記載のモータ。   2. The motor according to claim 1, wherein one surface of the drip-proof cover is semi-open, the lead wire is bent in a mountain-valley shape, and the lead wire is led out from the semi-open surface. 前記モータは固定子を樹脂で覆ったモールドモータである請求項1或いは2記載のモータ。   The motor according to claim 1, wherein the motor is a molded motor having a stator covered with resin. 前記モータフレームに防滴カバー取付溝を形成し、前記防滴カバーを該取付溝に取り付けたことを特徴とする請求項1乃至3記載のモータ。   4. The motor according to claim 1, wherein a drip-proof cover mounting groove is formed in the motor frame, and the drip-proof cover is mounted in the mounting groove.
JP2009066047A 2009-03-18 2009-03-18 Drip-proof structure of motor Pending JP2010220430A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105637746A (en) * 2013-10-22 2016-06-01 三菱电机株式会社 Molded stator, molded electric motor, and air conditioner
WO2018096706A1 (en) * 2016-11-23 2018-05-31 日本電産株式会社 Motor and electric power steering device
EP3587822A1 (en) * 2018-06-29 2020-01-01 LG Electronics Inc. Drain pump

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105637746A (en) * 2013-10-22 2016-06-01 三菱电机株式会社 Molded stator, molded electric motor, and air conditioner
US10084357B2 (en) 2013-10-22 2018-09-25 Mitsubishi Electric Corporation Molded stator, molded electric motor, and air conditioner
WO2018096706A1 (en) * 2016-11-23 2018-05-31 日本電産株式会社 Motor and electric power steering device
JPWO2018096706A1 (en) * 2016-11-23 2019-10-17 日本電産株式会社 Motor and electric power steering device
US10958131B2 (en) 2016-11-23 2021-03-23 Nidec Corporation Motor and electric power steering device
EP3587822A1 (en) * 2018-06-29 2020-01-01 LG Electronics Inc. Drain pump
US11028852B2 (en) 2018-06-29 2021-06-08 Lg Electronics Inc. Drain pump

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