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JP2008002808A - Resolver stator structure - Google Patents

Resolver stator structure Download PDF

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Publication number
JP2008002808A
JP2008002808A JP2006169545A JP2006169545A JP2008002808A JP 2008002808 A JP2008002808 A JP 2008002808A JP 2006169545 A JP2006169545 A JP 2006169545A JP 2006169545 A JP2006169545 A JP 2006169545A JP 2008002808 A JP2008002808 A JP 2008002808A
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Prior art keywords
terminal pin
holding portion
groove
stator structure
stator
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JP5017594B2 (en
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Katsutoshi Toyotake
克年 豊竹
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Tamagawa Seiki Co Ltd
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Tamagawa Seiki Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent an L-type terminal pin from deformation or positional deviation at molding, by making a part of the L-type terminal pin to be insert-molded in the terminal pin holding part exposed, and then making the part to abut against a die. <P>SOLUTION: The constitution of the resolver stator structure includes a groove (20), which is formed on a surface (4b) of a holding part (4) of the terminal pin, while a part (5c) of the L-type terminal pin (5) is exposed inside the groove (20), and the part (5c) is abutted against the die when insert molding the L-type terminal pin (5). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、レゾルバステータ構造に関し、特に、端子ピン保持部にインサート成形するL型端子ピンの一部を露出させ、この一部を金型で当接することにより、成形時のL型端子ピンの変形を防止するための新規な改良に関する。   The present invention relates to a resolver stator structure, and in particular, by exposing a part of an L-shaped terminal pin to be insert-molded to a terminal pin holding portion and contacting the part with a mold, The present invention relates to a novel improvement for preventing deformation.

従来、用いられていたこの種のレゾルバステータ構造としては、例えば、特許文献1に開示されている構成のように、輪状ステータに成形によって絶縁カバーを形成し、この絶縁カバーの一部に端子ピンを一体成形で設ける構造が開示されている。   Conventionally, as this type of resolver stator structure used conventionally, an insulating cover is formed by molding a ring-shaped stator as in the configuration disclosed in Patent Document 1, and a terminal pin is formed on a part of the insulating cover. A structure in which is provided by integral molding is disclosed.

前述の特許文献1に開示された絶縁カバーの一体成形構造を適用した技術が、図4から図6で示されるように社内製品として採用されている。
すなわち、図4から図6において符号1で示されるものは、全体形状が輪状をなす積層型の鉄芯からなる輪状ステータであり、この輪状ステータ1の内面には複数の磁極部2が内方へ突出して一体に形成されている。
The technique to which the insulating cover integral molding structure disclosed in Patent Document 1 described above is applied is adopted as an in-house product as shown in FIGS.
That is, what is denoted by reference numeral 1 in FIGS. 4 to 6 is a ring-shaped stator composed of a laminated iron core having a ring shape as a whole, and a plurality of magnetic pole portions 2 are inwardly formed on the inner surface of the ring-shaped stator 1. Projecting into a single piece.

前記輪状ステータ1の両面には、樹脂一体成形(インサート成形)によって絶縁カバー3が一体に形成され、この絶縁カバー3の一端には端子ピン保持部4が径方向に突出して形成されている。
前記端子ピン保持部4には、L型端子ピン5がインサート成形されている。
An insulating cover 3 is integrally formed on both surfaces of the annular stator 1 by resin integral molding (insert molding), and a terminal pin holding portion 4 is formed at one end of the insulating cover 3 so as to protrude in the radial direction.
An L-shaped terminal pin 5 is insert-molded in the terminal pin holding portion 4.

前記L型端子ピン5は、前記端子ピン保持部4内に成形されており、その一端5aは前記端子ピン保持部4の他面4aから外方へ突出し、その他端5bは前記端子ピン保持部4の前記他面4aと直交する直交面4cから外方へ突出して形成されている。   The L-type terminal pin 5 is formed in the terminal pin holding portion 4, one end 5 a of the terminal pin holding portion 4 projects outward from the other surface 4 a, and the other end 5 b is the terminal pin holding portion. 4 is formed to project outward from an orthogonal surface 4c orthogonal to the other surface 4a.

前記端子ピン保持部4の一面4bには、図6で示されるように、後述のステータコイル6をL型端子ピン5の一端5aにからげる時のたるみ取りを行うたるみ取り用ピン(図示せず)を挿入して取付けるためのピン穴7が形成されている。
前記ピン穴7は、この端子ピン保持部4を厚さ方向に貫通して形成され、このたるみ取り用ピンは前記一端5a側に突出して設けられ、ステータコイル6の端線を前記一端5aにからげる際に前記たるみ取り用ピンを介してたるみを無くした状態でからげ、からげ終了後にこのたるみ取り用ピンをピン穴7から抜くと、ステータコイル6の端線にはたるみが形成され、熱衝撃によるステータコイル6の断線等を防止できるように構成されている。
As shown in FIG. 6, on one surface 4 b of the terminal pin holding portion 4, a sag removing pin (see FIG. 6) that sags when a later-described stator coil 6 is tangled to one end 5 a of the L-type terminal pin 5. A pin hole 7 is formed for inserting and attaching it (not shown).
The pin hole 7 is formed so as to penetrate the terminal pin holding portion 4 in the thickness direction, the slack removing pin is provided to protrude toward the one end 5a, and the end line of the stator coil 6 is connected to the one end 5a. When the sag is removed, the sag is removed through the sag removal pin, and when the sag removal pin is removed from the pin hole 7 after the sag is finished, a sag is formed at the end line of the stator coil 6. The stator coil 6 can be prevented from being disconnected due to thermal shock.

米国特許第6873074号明細書US Pat. No. 6,873,074

従来のレゾルバステータ構造は、以上のように構成されていたため、次のような課題が存在していた。
すなわち、輪状ステータに対して絶縁カバーを一体成形する場合、端子ピン保持部にL型端子ピンを成形する時に、この端子ピン保持部4の肉厚内にL型端子ピン5をインサート成形する状態となり、L型端子ピン5の一端5aと他端5bが金型に接するのみで、L型端子ピン5の一部(中央部分)が金型に接していないが故に成形圧によりL型端子ピンの変形や位置ずれが発生していた。
Since the conventional resolver stator structure is configured as described above, the following problems exist.
That is, when the insulating cover is integrally formed with the ring-shaped stator, the L-type terminal pin 5 is insert-molded within the thickness of the terminal pin holding portion 4 when the L-type terminal pin is formed in the terminal pin holding portion. Therefore, only one end 5a and the other end 5b of the L-type terminal pin 5 are in contact with the mold, and a part (center portion) of the L-type terminal pin 5 is not in contact with the mold. Deformation and misalignment occurred.

そのため、成形後に、各L型端子ピン5間、及び、輪状ステータ1とL型端子ピン5間の短絡が発生することがあり、製品歩留まりを向上させることが困難であった。
また、端子ピン保持部の肉厚が厚いために、成形後のヒケにより寸法変化を起こすことがあった。
また、ステータコイルをL型端子ピンにからげた後に、ステータコイルをワニスで固定する場合、ワニスがたるみ取り用ピンを抜いた後のピン穴を介して反対面に流れて垂れることになっていた。
Therefore, a short circuit may occur between the L-shaped terminal pins 5 and between the ring-shaped stator 1 and the L-shaped terminal pins 5 after molding, and it is difficult to improve the product yield.
Further, since the thickness of the terminal pin holding portion is large, there is a case where a dimensional change occurs due to sink marks after molding.
In addition, when the stator coil is fixed with varnish after the stator coil is entangled with the L-shaped terminal pin, the varnish was supposed to flow and hang down to the opposite surface through the pin hole after the sag removing pin was pulled out. .

本発明によるレゾルバステータ構造は、内方へ向けて突出する複数の磁極部を有する輪状ステータと、前記輪状ステータに設けられL型端子ピンを金型によるインサート成形にて有する端子ピン保持部を一体に有する絶縁カバーと、前記各磁極部に前記絶縁カバーを介して巻付けられたステータコイルと、からなるレゾルバステータ構造において、前記端子ピン保持部の一面に形成された溝を有し、前記L型端子ピンの一部は前記溝内に露出し、前記L型端子ピンのインサート成形時に前記一部は前記金型に当接するようにした構成であり、また、前記L型端子ピンの一端は前記端子ピン保持部の前記一面とは反対の他面から外方へ突出し、前記L型端子ピンの他端は前記端子ピン保持部の前記一面に対して直交する直交面から外方へ突出している構成であり、また、前記他面には、前記金型の複数の突部が当接して形成された複数の凹部が形成されている構成であり、また、前記溝内には、たるみ取り用ピンを着脱自在に設けるためのピン穴が形成されている構成である。   The resolver stator structure according to the present invention integrally includes a ring-shaped stator having a plurality of magnetic pole portions protruding inward and a terminal pin holding portion provided on the ring-shaped stator and having an L-shaped terminal pin by insert molding using a mold. And a stator coil wound around each of the magnetic pole portions via the insulating cover, and having a groove formed on one surface of the terminal pin holding portion, and the L A part of the mold terminal pin is exposed in the groove, and the part is in contact with the mold when the L-type terminal pin is insert-molded, and one end of the L-type terminal pin is The terminal pin holding portion protrudes outward from the other surface opposite to the one surface, and the other end of the L-shaped terminal pin protrudes outward from an orthogonal surface orthogonal to the one surface of the terminal pin holding portion. Further, the other surface is formed with a plurality of recesses formed by abutting the plurality of protrusions of the mold, and a slack removal is provided in the groove. It is the structure in which the pin hole for providing the pin for attachment so that attachment or detachment is possible is formed.

本発明によるレゾルバステータ構造は、以上のように構成されているため、次のような効果を得ることができる。
すなわち、端子ピン保持部の一面に溝が形成され、成形時にL型端子ピンの一部を金型で固定することができ、L型端子ピンの変形や位置ずれを防止し、輪状ステータとL型端子ピンとの短絡等を防止することができる。
また、前記溝により、たるみ取り用ピンを着脱自在とするピン穴から垂れたワニスを受けることができ、この溝により肉厚を薄くできるため成形による樹脂のヒケによる寸法変化を小さく抑えることができる。
また、端子ピン保持部の他面には、金型の突部が当接して凹部が形成されているため、成形時のL型端子ピンの位置固定を容易化し、成形歩留まりを向上させることができる。
Since the resolver stator structure according to the present invention is configured as described above, the following effects can be obtained.
That is, a groove is formed on one surface of the terminal pin holding portion, and a part of the L-type terminal pin can be fixed with a mold at the time of molding, so that deformation and displacement of the L-type terminal pin can be prevented. Short-circuiting with the mold terminal pins can be prevented.
Further, the groove can receive a varnish drooping from a pin hole that allows the slack removal pin to be detachable, and the thickness can be reduced by the groove, so that a dimensional change due to resin sink due to molding can be suppressed to a small level. .
In addition, the other side of the terminal pin holding portion has a concave portion formed by abutment with the protruding portion of the mold, facilitating the fixing of the position of the L-type terminal pin during molding and improving the molding yield. it can.

本発明は、端子ピン保持部にインサート成形するL型端子ピンの一部を露出させ、この一部を金型で当接する等により、成形時のL型端子ピンの変形を防止するようにしたレゾルバステータ構造を提供することを目的とする。 In the present invention, a part of the L-shaped terminal pin to be insert-molded is exposed to the terminal pin holding portion, and a part of the L-shaped terminal pin is brought into contact with the mold to prevent the deformation of the L-shaped terminal pin during molding. An object is to provide a resolver stator structure.

以下、図面と共に本発明によるレゾルバステータ構造の好適な実施の形態について説明する。
尚、従来例と同一又は同等部分には、同一符号を付して説明する。
図1から図3において符号1で示されるものは、全体形状が輪状をなす積層型の鉄芯からなる輪状ステータであり、この輪状ステータ1の内面には複数の磁極部2が内方へ突出して一体に形成されている。
Hereinafter, preferred embodiments of a resolver stator structure according to the present invention will be described with reference to the drawings.
In addition, the same code | symbol is attached | subjected and demonstrated to a part the same as that of a prior art example, or an equivalent part.
In FIG. 1 to FIG. 3, a reference numeral 1 denotes a ring-shaped stator composed of a laminated iron core having a ring shape as a whole, and a plurality of magnetic pole portions 2 project inwardly on the inner surface of the ring-shaped stator 1. Are integrally formed.

前記輪状ステータ1の両面には、樹脂一体成形(インサート成形)によって絶縁カバー3が一体に形成され、この絶縁カバー3の一端には端子ピン保持部4が径方向に突出して形成されている。
前記端子ピン保持部4には、L型端子ピン5がインサート成形されている。
An insulating cover 3 is integrally formed on both surfaces of the annular stator 1 by resin integral molding (insert molding), and a terminal pin holding portion 4 is formed at one end of the insulating cover 3 so as to protrude in the radial direction.
An L-shaped terminal pin 5 is insert-molded in the terminal pin holding portion 4.

前記L型端子ピン5は、前記端子ピン保持部4内に成形されており、その一端5aは前記端子ピン保持部4の他面4aから外方へ突出し、その他端5bは前記端子ピン保持部4の前記他面4a直交する直交面4cから外方へ突出して形成されている。   The L-type terminal pin 5 is formed in the terminal pin holding portion 4, one end 5 a of the terminal pin holding portion 4 projects outward from the other surface 4 a, and the other end 5 b is the terminal pin holding portion. 4 is formed to project outward from the orthogonal surface 4c orthogonal to the other surface 4a.

前記端子ピン保持部4の前記一面4bには、その肉厚方向に窪む形状の溝20が形成され、この一面4bの肉厚は従来の図5に示される肉厚よりも約半分位薄く形成され、成形時の樹脂のヒケによる変形を防止できるように構成されている。   The one surface 4b of the terminal pin holding portion 4 is formed with a groove 20 that is recessed in the thickness direction. The thickness of the one surface 4b is about half thinner than the thickness shown in FIG. It is formed and configured to prevent deformation due to resin sink marks during molding.

前記一面4bに溝20が形成されていることにより、前記一体成形時に、図示しない金型内にL型端子ピン5を保持した場合、このL型端子ピン5の一部5cがこの溝20内で露出した状態で金型に当接した状態で定位置に一体成形され、成形時の射出樹脂の圧力によっても、L型端子ピン5の変形や位置ずれを効果的に防止し、輪状ステータ1との短絡等も防止することができる。   Since the groove 20 is formed on the one surface 4b, when the L-type terminal pin 5 is held in a mold (not shown) during the integral molding, a part 5c of the L-type terminal pin 5 is in the groove 20 And is integrally molded at a fixed position while being in contact with the mold in an exposed state, and the L-shaped terminal pin 5 is effectively prevented from being deformed and displaced even by the pressure of the injection resin during molding, and the annular stator 1 It is also possible to prevent a short circuit with.

前記端子ピン保持部4の前記一面4bに対抗する他面4aの前記L型端子ピン5の一端5aの近傍位置には、複数の凹部21が形成されている。
前記各凹部21は、金型によって前記端子ピン保持部4を一体成形する時に、この金型に形成された複数の凸部(図示せず)によって形成され、一体成形時における端子ピン保持部4の位置決めを行う作用を有している。
A plurality of recesses 21 are formed in the vicinity of the one end 5a of the L-type terminal pin 5 on the other surface 4a facing the one surface 4b of the terminal pin holding portion 4.
Each of the concave portions 21 is formed by a plurality of convex portions (not shown) formed in the mold when the terminal pin holding portion 4 is integrally molded by a mold, and the terminal pin holding portion 4 at the time of integral molding. It has the effect | action which performs positioning.

前記端子ピン保持部4の前記一面4bには、図6で示されるように、後述のステータコイル6をL型端子ピン5の一端5aにからげる時のたるみ取りを行うたるみ取り用ピン(図示せず)を挿入して取付けるためのピン穴7が形成されている。   As shown in FIG. 6, the one surface 4 b of the terminal pin holding portion 4 has a sag removing pin (a sag removing pin that sags when a stator coil 6 described later is bent on one end 5 a of the L-type terminal pin 5 ( A pin hole 7 is formed for inserting and attaching it (not shown).

前記各ピン穴7は、前記一面4bに形成された各溝20内に形成されてその厚さ方向に貫通して形成され、このたるみ取り用ピンは前記一端5a側に突出して設けられ、ステータコイル6の端線を前記一端5aにからげる際に前記たるみ取り用ピンを介してたるみを無くした状態でからげ、からげ終了後にこのたるみ取り用ピンをピン穴7から抜くと、ステータコイル6の端線にはたるみが形成され、外部衝撃によるステータコイル6の端線の断線等を防止している。   Each pin hole 7 is formed in each groove 20 formed in the one surface 4b and penetrates in the thickness direction thereof, and the sag removing pin is provided so as to protrude toward the one end 5a. When the end line of the coil 6 is tangled to the one end 5a, the sag is removed through the sag removing pin, and after the sag is finished, the sag removing pin is removed from the pin hole 7, and the stator 6 A slack is formed in the end line of the coil 6 to prevent disconnection of the end line of the stator coil 6 due to an external impact.

前記L型端子ピン5の一端5aにからげられたステータコイル6の端線は、図示しないワニス等のポッティング処理によって前記一端5aに固定され、この時のワニス等の余り分は、前記たるみ取り用ピンの抜かれたピン穴7を介して前記他面4a側から溝20内に流れて固化する。   The end line of the stator coil 6 tangled to the one end 5a of the L-shaped terminal pin 5 is fixed to the one end 5a by a potting process such as varnish (not shown). It flows into the groove 20 from the side of the other surface 4a through the pin hole 7 from which the working pin is removed and is solidified.

前記溝20内へのワニス等の流入固化により、この溝20によって肉厚が薄くなっている部分の強度の補強に寄与することができる。   By solidifying the inflow of varnish or the like into the groove 20, it is possible to contribute to reinforcing the strength of the portion where the thickness is reduced by the groove 20.

本発明によるレゾルバステータ構造を示す正面図である。It is a front view which shows the resolver stator structure by this invention. 図1の断面図である。It is sectional drawing of FIG. 図1の背面図である。It is a rear view of FIG. 従来のレゾルバステータ構造の正面図である。It is a front view of the conventional resolver stator structure. 図4の断面図である。FIG. 5 is a cross-sectional view of FIG. 4. 図4の背面図である。FIG. 5 is a rear view of FIG. 4.

符号の説明Explanation of symbols

1 輪状ステータ
2 磁極部
3 絶縁カバー
4 端子ピン保持部
4a 他面
4b 一面
4c 直交面
5 L型端子ピン
5a 一端
5b 他端
5c 一部
6 ステータコイル
7 ピン穴
20 溝
21 凹部
DESCRIPTION OF SYMBOLS 1 Ring-shaped stator 2 Magnetic pole part 3 Insulation cover 4 Terminal pin holding | maintenance part 4a Other side 4b One side 4c Right-angled side 5 L-type terminal pin 5a One end 5b The other end 5c Part 6 Stator coil 7 Pin hole 20 Groove 21 Recess

Claims (4)

内方へ向けて突出する複数の磁極部(2)を有する輪状ステータ(1)と、前記輪状ステータに設けられL型端子ピンを金型によるインサート成形にて有する端子ピン保持部(4)を一体に有する絶縁カバー(3)と、前記各磁極部(2)に前記絶縁カバー(3)を介して巻付けられたステータコイル(6)と、からなるレゾルバステータ構造において、
前記端子ピン保持部(4)の一面(4b)に形成された溝(20)を有し、前記L型端子ピン(5)の一部(5c)は前記溝(20)内に露出し、前記L型端子ピン(5)のインサート成形時に前記一部(5c)は前記金型に当接するように構成されていることを特徴とするレゾルバステータ構造。
An annular stator (1) having a plurality of magnetic pole portions (2) projecting inward, and a terminal pin holding portion (4) having an L-shaped terminal pin provided in the annular stator by insert molding using a mold In a resolver stator structure consisting of an insulating cover (3) integrally having and a stator coil (6) wound around each magnetic pole part (2) via the insulating cover (3),
A groove (20) formed on one surface (4b) of the terminal pin holding portion (4), a part (5c) of the L-type terminal pin (5) is exposed in the groove (20); A resolver stator structure characterized in that the part (5c) is configured to abut against the mold during insert molding of the L-shaped terminal pin (5).
前記L型端子ピン(5)の一端(5a)は前記端子ピン保持部(4)の前記一面(4b)とは反対の他面(4a)から外方へ突出し、前記L型端子ピン(5)の他端(4a)は前記端子ピン保持部(4)の前記一面(4b)に対して直交する直交面(4c)から外方へ突出していることを特徴とする請求項1記載のレゾルバステータ構造。   One end (5a) of the L-shaped terminal pin (5) protrudes outward from the other surface (4a) opposite to the one surface (4b) of the terminal pin holding portion (4), and the L-shaped terminal pin (5 2. The resolver according to claim 1, wherein the other end (4 a) of the terminal pin holding portion (4) protrudes outward from an orthogonal surface (4 c) orthogonal to the one surface (4 b). Stator structure. 前記他面(4a)には、前記金型の複数の突部が当接して形成された複数の凹部(21)が形成されていることを特徴とする請求項1又は2記載のレゾルバステータ構造。   The resolver stator structure according to claim 1 or 2, wherein a plurality of recesses (21) formed by contacting a plurality of protrusions of the mold are formed on the other surface (4a). . 前記溝(20)内には、たるみ取り用ピンを着脱自在に設けるためのピン穴(7)が形成されていることを特徴とする請求項1ないし3の何れかに記載のレゾルバステータ構造。   The resolver stator structure according to any one of claims 1 to 3, wherein a pin hole (7) for detachably providing a sag removing pin is formed in the groove (20).
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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN104682601A (en) * 2009-10-14 2015-06-03 大星电机工业株式会社 Resolver of driving motor for vehicle
WO2016120996A1 (en) * 2015-01-27 2016-08-04 三菱電機株式会社 Coil device and method for manufacturing same
JP2019213359A (en) * 2018-06-06 2019-12-12 愛三工業株式会社 Stepper motor

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WO2006038693A1 (en) * 2004-10-07 2006-04-13 Tamagawa Seiki Kabushiki Kaisha Resolver external conductor fixing structure
JP2006223059A (en) * 2005-02-10 2006-08-24 Tamagawa Seiki Co Ltd Terminal connection structure of resolver

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WO2006038693A1 (en) * 2004-10-07 2006-04-13 Tamagawa Seiki Kabushiki Kaisha Resolver external conductor fixing structure
JP2006223059A (en) * 2005-02-10 2006-08-24 Tamagawa Seiki Co Ltd Terminal connection structure of resolver

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104682601A (en) * 2009-10-14 2015-06-03 大星电机工业株式会社 Resolver of driving motor for vehicle
EP2490324A4 (en) * 2009-10-14 2017-06-14 Daesung Electric Co., Ltd. Resolver for a driving motor of a vehicle
WO2016120996A1 (en) * 2015-01-27 2016-08-04 三菱電機株式会社 Coil device and method for manufacturing same
JPWO2016120996A1 (en) * 2015-01-27 2017-04-27 三菱電機株式会社 Coil device and manufacturing method thereof
CN107112843A (en) * 2015-01-27 2017-08-29 三菱电机株式会社 Coil device and its manufacture method
JP2019213359A (en) * 2018-06-06 2019-12-12 愛三工業株式会社 Stepper motor
JP7002409B2 (en) 2018-06-06 2022-01-20 愛三工業株式会社 Step motor

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