JP4324604B2 - Inductor type motor with reverse rotation pawl - Google Patents

Inductor type motor with reverse rotation pawl Download PDF

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Publication number
JP4324604B2
JP4324604B2 JP2006142460A JP2006142460A JP4324604B2 JP 4324604 B2 JP4324604 B2 JP 4324604B2 JP 2006142460 A JP2006142460 A JP 2006142460A JP 2006142460 A JP2006142460 A JP 2006142460A JP 4324604 B2 JP4324604 B2 JP 4324604B2
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Prior art keywords
gear
claw
wheel
tooth
reverse rotation
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JP2006142460A
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JP2007014188A (en
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敏夫 前原
栄治 黒田
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Nidec Advanced Motor Corp
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Nidec Servo Corp
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Description

本発明は逆転防止爪車付きインダクタ型モータ、特に、自動製氷装置などに利用する逆転防止爪車付きインダクタ型モータに関する。   The present invention relates to an inductor type motor with an anti-reverse pawl wheel, and more particularly to an inductor type motor with an anti-reverse pawl wheel used for an automatic ice making device or the like.

現在の自動製氷装置用のモータは、交流駆動式単相ヒステリシス型モータを使用しているが、出力効率が約1〜2%と極めて低く、入力の殆どが損失になっていること、また効率が悪いためモータの小型化が出来ず、コストを下げることができなかった。また同じ交流式単相モータとして、インダクタ型があり、ヒステリシス型より約10倍の出力効率があるが、単相のため逆転する懸念があった。   Current motors for automatic ice making machines use AC-driven single-phase hysteresis type motors, but the output efficiency is extremely low, about 1-2%, and most of the input is lost, and the efficiency However, the motor could not be miniaturized and the cost could not be reduced. As the same AC single-phase motor, there is an inductor type, which has about 10 times the output efficiency of the hysteresis type, but there is a concern that it will reverse because of the single phase.

インダクタ型であれば、出力効率が良い分、モータの小型化によりコスト低減が出来るので、逆転を如何に防止するかという課題がある。   If the inductor type is used, the cost can be reduced by downsizing the motor as the output efficiency is good, so there is a problem of how to prevent reverse rotation.

このような、モータの逆転を防止する装置としては例えば特許文献1に記載のものがある。
特開平3−198639号公報
An example of such an apparatus for preventing reverse rotation of the motor is disclosed in Patent Document 1.
Japanese Patent Laid-Open No. 3-198639

然しながら、上記従来の逆転を防止する装置は、歯車の軸部に摩擦摺動自在に結合した逆転防止レバーやバネ板を用いるものであり機構が複雑である。   However, the conventional device for preventing reverse rotation uses a reverse rotation preventing lever or a spring plate that is frictionally slidably coupled to the shaft portion of the gear, and has a complicated mechanism.

本発明は上記の欠点を除くようにしたものである。   The present invention eliminates the above-mentioned drawbacks.

本発明の逆転防止爪車付きインダクタ型モータは、インダクタ型モータと、このモータの出力軸と、この出力軸に連結された歯車と、これらを含むケーシングと、このケーシングによって回転自在に支持される、爪を有する爪車と、この爪車から爪車の半径方向に延びる爪と、上記歯車の逆転を阻止するため上記爪車の爪の先端面が、上記歯車の逆転方向に面する歯面に対接するよう上記爪車を抑制するための押圧手段とより成り、上記歯車の歯の中心線と、この歯車の歯面に接する上記爪の先端面によって形成される角(接触角)が、上記歯車の歯が上記爪の先端面に接する点における接線と上記歯車の歯の中心線とのなす角(圧力角)と互いに等しいことを特徴とする。 An inductor type motor with a reverse rotation pawl wheel according to the present invention is supported rotatably by an inductor type motor, an output shaft of the motor, a gear connected to the output shaft , a casing including them, and a casing. a ratchet wheel to have a pawl, the pawl extending from the ratchet wheel in the radial direction of the ratchet wheel, the distal end surface of the claw of the ratchet wheel to prevent reverse rotation of the gear faces in the reverse direction of the gear teeth A pressing means for restraining the claw wheel to come into contact with the surface, and an angle (contact angle) formed by the center line of the tooth of the gear and the tip surface of the claw in contact with the tooth surface of the gear. The angle between the tangent line at the point where the tooth of the gear contacts the tip end surface of the claw and the center line of the tooth of the gear is equal to the angle (pressure angle) .

また、本発明の上記爪の先端面の内側の角は、歯車の歯底に向って突出しており、上記歯車が逆転したとき、上記爪の先端面の内側の角が上記歯車の歯面から外れないようになることを特徴とする。 In addition, the inner corner of the claw tip surface of the present invention protrudes toward the tooth bottom of the gear, and when the gear is reversed, the inner corner of the claw tip surface is separated from the gear tooth surface. The feature is that it will not come off .

本発明においては、製氷装置用のモータをヒステリシス型から出力効率の良いインダクタ型にしたので、出力効率が良い分、モータの小型化ができ、例えば、モータの重さを160gから80gに半減することができる。また、これによりコストの低減のみならず、消費電力の低減、使用資源の抑制といった環境への有益性も向上するようになる。爪と歯面との接触角を歯車の圧力角と同等にしたので歯車が逆転し歯車の歯面が爪の先端面と接触する際に爪の先端面は歯車の歯面の中央部分に接触する。また歯車からの荷重が爪の先端面に垂直にかかるようになる。このため爪の先端面の両端の低強度部分への負荷が小さくなるために爪先端部分の強度を必要以上に上げなくて済み、爪を小型化出来るメリットがある。またさらに爪先端を歯底方向に突出させることにより逆転防止効果を確実にする。 In the present invention, since the motor for the ice making device is changed from the hysteresis type to the inductor type having high output efficiency, the motor can be miniaturized by the amount of good output efficiency. For example, the weight of the motor is reduced by half from 160 g to 80 g. be able to. This not only reduces costs, but also improves environmental benefits such as power consumption and resource use. Since the contact angle between the claw and the tooth surface is the same as the pressure angle of the gear, when the gear reverses and the gear tooth surface comes into contact with the claw tip surface, the claw tip surface contacts the center part of the gear tooth surface. To do. Further, the load from the gear is applied perpendicularly to the tip surface of the claw. For this reason, since the load to the low-strength portions at both ends of the tip surface of the nail is reduced, it is not necessary to increase the strength of the tip portion of the nail more than necessary, and there is an advantage that the nail can be downsized. The Further claw end to secure the reverse rotation preventing effect by protruding the tooth bottom direction.

以下図面によって本発明の実施例を説明する。   Embodiments of the present invention will be described below with reference to the drawings.

本発明の逆転防止爪車付きインダクタ型モータは図1及び図2に示すように、ケーシング1と、上記ケーシング1内に設けた交流式単相インダクタ型モータ(図示せず)と、このモータの出力軸2に連結した歯車列3と、上記ケーシング1に回動自在に設けた爪車5と、上記爪車5からその半径方向に延びる爪6の先端面6aを常時、上記歯車列3のうちの任意の歯車4の上記爪6の先端面6aに接する逆転方向を向く歯面4aに対接せしめるよう抑制するバネ7とよりなる。 As shown in FIGS. 1 and 2, an inductor type motor with a reverse rotation pawl wheel of the present invention includes a casing 1, an AC single-phase inductor type motor (not shown) provided in the casing 1, A gear train 3 connected to the output shaft 2, a claw wheel 5 rotatably provided on the casing 1, and a tip surface 6 a of a claw 6 extending from the claw wheel 5 in the radial direction are always provided on the gear train 3. It comprises a spring 7 that restrains it from coming into contact with the tooth surface 4a facing in the reverse direction contacting the tip surface 6a of the claw 6 of the arbitrary gear 4.

本発明の逆転防止爪車付きインダクタ型モータは上記のような構成であるから、モータ正転時は正転方向に移動する歯車4の歯によって上記爪車5の爪6がバネ7に抗して上記歯車4の歯面4aから外れる方向に移動され、モータは正転できるが、逆回転時には上記歯車4の歯面4aに上記爪車5の爪6の先端面6aが掛合したままとなり、モータの逆回転が防止されるようになる。   Since the inductor type motor with a reverse rotation pawl wheel according to the present invention is configured as described above, the pawl 6 of the pinion wheel 5 resists the spring 7 by the teeth of the gear 4 that moves in the forward rotation direction during the forward rotation of the motor. The gear 4 is moved in a direction away from the tooth surface 4a of the gear 4, and the motor can rotate forward, but at the time of reverse rotation, the tooth surface 4a of the gear 4 remains engaged with the tip surface 6a of the claw 6 of the claw wheel 5, The reverse rotation of the motor is prevented.

また、本発明の逆転防止爪車付きインダクタ型モータにおいては図2に示すように、上記歯車4の歯の中心線と、この歯の歯面4aに接する上記爪6の先端面6aとのなす角、即ち、接触角を、上記歯車4の歯が上記爪の先端面に接する点における接線と上記歯車の歯の中心線とのなる角、即ち、圧力角Aと同等になるように定める。 Moreover, in the inductor type motor with a reverse rotation pawl wheel of the present invention, as shown in FIG. 2, the center line of the tooth of the gear 4 and the tip surface 6a of the claw 6 in contact with the tooth surface 4a of the tooth are formed. The angle, that is, the contact angle , is determined so as to be equal to the angle between the tangent line at the point where the tooth of the gear 4 contacts the tip surface of the claw and the center line of the tooth of the gear, that is, the pressure angle A.

また、本発明の第の実施例においては、更に図3に示すように爪先端を歯底に向って突出させることにより逆転時の爪の先端面6aと歯面4aとの接触を確実にし逆転防止を図る。 In the second embodiment of the present invention, to ensure contact between the distal end surface 6a and the tooth surface 4a of the nail during the reverse rotation by protruding further toward the tooth bottom of the nail tip as shown in FIG. 3 To prevent reverse rotation.

上記爪車5と上記バネ7とは別体であっても、一体であってもよい。   The claw wheel 5 and the spring 7 may be separate or integrated.

本発明の逆転防止爪車付きインダクタ型モータの縦断側面図である。It is a vertical side view of the inductor type motor with a reverse rotation pawl wheel of the present invention. 図1の要部の動作説明図である。It is operation | movement explanatory drawing of the principal part of FIG. 本発明の他の実施例を示す説明図である。It is explanatory drawing which shows the other Example of this invention.

1 ケーシング
2 出力軸
3 歯車列
4 歯車
4a 歯面
5 爪車
6 爪
6a 先端面
7 バネ
DESCRIPTION OF SYMBOLS 1 Casing 2 Output shaft 3 Gear train 4 Gear 4a Tooth surface 5 Claw wheel 6 Claw 6a Tip surface 7 Spring

Claims (2)

インダクタ型モータと、このモータの出力軸と、この出力軸に連結された歯車と、これらを含むケーシングと、このケーシングによって回転自在に支持される、爪を有する爪車と、この爪車から爪車の半径方向に延びる爪と、上記歯車の逆転を阻止するため上記爪車の爪の先端面が、上記歯車の逆転方向に面する歯面に対接するよう上記爪車を抑制するための押圧手段とより成り、上記歯車の歯の中心線と、この歯車の歯面に接する上記爪の先端面によって形成される角(接触角)が、上記歯車の歯が上記爪の先端面に接する点における接線と上記歯車の歯の中心線とのなす角(圧力角)と互いに等しいことを特徴とする逆転防止爪車付きインダクタ型モータ。 And inductor motor, an output shaft of the motor, a gear connected to the output shaft, a casing containing these, are rotatably supported by the casing, a ratchet wheel to have a nail, from the ratchet wheel A claw for restraining the claw wheel so that a claw extending in the radial direction of the claw wheel and a front end surface of the claw wheel of the claw wheel to prevent a reverse rotation of the gear are in contact with a tooth surface facing the reverse direction of the gear . An angle (contact angle) formed by the center line of the tooth of the gear and the tip surface of the claw in contact with the tooth surface of the gear is in contact with the tip surface of the claw. An inductor type motor with an anti-reverse pawl wheel, characterized in that an angle (pressure angle) formed between a tangent line at a point and a center line of a tooth of the gear is equal to each other . 上記爪の先端面の内側の角が、上記歯車の歯底に向って突出し、上記歯車が逆転したとき上記爪の先端面の内側の角が上記歯車の歯面から外れないようになることを特徴とする請求項1記載の逆転防止爪車付きインダクタ型モータ。 Inner corner of the front end surface of the pawl protrudes toward the tooth bottom of the gear, Rukoto inner corner of the front end surface of the pawl when the wheel is reversed, such as do not depart from the tooth surface of the gear The inductor-type motor with a reverse rotation preventing claw wheel according to claim 1.
JP2006142460A 2005-05-31 2006-05-23 Inductor type motor with reverse rotation pawl Expired - Fee Related JP4324604B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006142460A JP4324604B2 (en) 2005-05-31 2006-05-23 Inductor type motor with reverse rotation pawl

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005159036 2005-05-31
JP2006142460A JP4324604B2 (en) 2005-05-31 2006-05-23 Inductor type motor with reverse rotation pawl

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JP2007014188A JP2007014188A (en) 2007-01-18
JP4324604B2 true JP4324604B2 (en) 2009-09-02

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WO2017126066A1 (en) * 2016-01-21 2017-07-27 プラトー株式会社 Speed reducer, and motor with speed reducer
CN113472140B (en) * 2021-08-16 2023-03-21 广东敏卓机电股份有限公司 Synchronous motor

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