JP4698492B2

JP4698492B2 - motor

Info

Publication number: JP4698492B2
Application number: JP2006162111A
Authority: JP
Inventors: 憲二河野
Original assignee: Sanyo Electric Co Ltd; Sanyo Seimitsu Co Ltd
Current assignee: Sanyo Electric Co Ltd; Nidec Seimitsu Corp
Priority date: 2006-06-12
Filing date: 2006-06-12
Publication date: 2011-06-08
Anticipated expiration: 2026-06-12
Also published as: JP2007336616A

Description

本発明は、振動モータ等のモータに関し、特にその給電端子構造に関する。 The present invention relates to a motor such as a vibration motor, and more particularly to a power supply terminal structure thereof.

特開２００１−３７１５０において、振動モータの給電端子は、モータ本体の端蓋側のモータ端子に半田付けされて端面に沿うように径方向に延びた取付け部分と、この取付け部分からモータ本体の前端側へ向けて直角に折り曲げられた第１の部分と、この第１の部分からＵ字状の折り曲げ部位を介して第１の部分に略平行に後方へ延在する第２の部分と、第２の部分から外方に向け湾曲突出させて導通接触部が形成された第３の部分とを備えている。第２の部分が第１の部分からＵ字状の折り曲げ部位を介して後方へ折り返されているため、振動モータを基板上に押え込む際は第３の部分の導通接触部がモータの出力軸に対して略直交する方向でモータ本体側に弾力的に接近するので、モータを基板上に安定して載置することができる。
特開２００１−３７１５０（図１） In Japanese Patent Application Laid-Open No. 2001-37150, a power supply terminal of a vibration motor is soldered to a motor terminal on the end cover side of the motor body and extends in a radial direction along the end face, and the front end of the motor body from this mounting part A first portion bent at a right angle toward the side, a second portion extending rearward substantially parallel to the first portion from the first portion via a U-shaped bent portion, And a third portion in which a conductive contact portion is formed by projecting outwardly from the portion 2. Since the second portion is folded backward from the first portion through a U-shaped bent portion, when the vibration motor is pressed onto the substrate, the conductive contact portion of the third portion is the output shaft of the motor. Therefore, the motor can be placed on the substrate stably.
JP 2001-37150 (FIG. 1)

しかしながら、上記の給電端子はＵ字状の折り曲げ部位を有しているため、第３の部分の導通接触部がモータ本体側に接近する程、このＵ字状の折り曲げ部位に過度なストレスが生じ、板ばねとしてのへたりを招き、導通接触部の基板上への圧接度合いが次第に低下する。また、Ｕ字状の折り曲げ部位の平行間隔だけモータ本体と基板との距離が長くなる分、振動モータの基板上での実装高さが高くなる。 However, since the power supply terminal has a U-shaped bent portion, the U-shaped bent portion becomes excessively stressed as the conductive contact portion of the third portion approaches the motor body side. As a result, sag as a leaf spring is caused, and the degree of pressure contact of the conductive contact portion on the substrate gradually decreases. In addition, the mounting height of the vibration motor on the substrate increases as the distance between the motor main body and the substrate increases by the parallel distance of the U-shaped bent portion.

そこで上記問題点に鑑み、本発明の課題は、Ｕ字状の折り曲げ部位を持たない給電端子を用いることにより、基板上に安定して載置できるモータを提供することにある。 In view of the above problems, an object of the present invention is to provide a motor that can be stably placed on a substrate by using a power supply terminal that does not have a U-shaped bent portion.

本発明に係るモータは、後方へ突出するモータ端子を備えてモータケースの後端開口を塞ぐ端蓋部及びこのモータケースの後端側下部に臨む端子支持部を一体的に有する樹脂製ブラケットと、モータ端子に電気的に接続してモータ軸に対する径方向の下方へ延在する径方向部分及びこの径方向部分の下端から折曲してモータ軸と略平行で前方へ延在する軸方向部分を有する中継端子と、基板上に圧接すべき第１の圧接部分を自由端側に持つばね状端子とを有し、端子支持部は、自由端側を後方へ向けた状態でばね状端子の固定端側をモールドした片持ち支持部と、軸方向部分が重なる受け止め支持部とを一体的に有し、軸方向部分の先端側は受け止め支持部とばね状端子の第２の圧接部分との間に挟着されて成り、自由端側は軸方向部分の真下で第２の圧接部分から斜め下方に向けた中間部分を介して形成されていることを特徴とする。 A motor according to the present invention includes a resin-made bracket that integrally includes an end lid portion that includes a motor terminal that protrudes rearward and closes the rear end opening of the motor case, and a terminal support portion that faces the lower rear side of the motor case. A radial portion that is electrically connected to the motor terminal and extends downward in the radial direction relative to the motor shaft, and an axial portion that is bent from the lower end of the radial portion and extends forward substantially parallel to the motor shaft And a spring-like terminal having a first press-contact portion to be press-contacted on the substrate on the free end side, and the terminal support portion of the spring-like terminal with the free end side facing rearward. The cantilevered support portion molded on the fixed end side and the receiving support portion with the axial portion overlapping each other are integrally formed, and the distal end side of the axial direction portion is formed between the receiving support portion and the second pressure contact portion of the spring-like terminal. The free end is the true part of the axial part. Characterized in that the in the second pressing parts are formed via an intermediate portion obliquely downward.

受け止め支持部に重なる軸方向部分の先端側が受け止め支持部とばね状端子の第２の圧接部分との間に挟着されているため、ばね状端子は第２の圧接部分で中継端子に導通しており、しかも、ばね状端子が中継端子の軸方向部分に対し後方へ配向しているため、モータを基板上に安定して載置できる。ばね状端子はＵ字状の折り曲げ部位を持たないので、ばね状端子としてのへたりを防止でき、またモータの基板上での実装高さを低くできる。給電端子としては中継端子とばね状端子との２部品となるが、モータ端子に対して半田接続等の取り付けが容易な中継端子を選択でき、ばね幅等を最適化したばね状端子を用いることができる。 Since the tip end side of the axial portion that overlaps the receiving support portion is sandwiched between the receiving support portion and the second pressure contact portion of the spring-like terminal, the spring-like terminal is electrically connected to the relay terminal at the second pressure contact portion. Moreover, since the spring-like terminal is oriented rearward with respect to the axial portion of the relay terminal, the motor can be stably placed on the substrate. Since the spring-like terminal does not have a U-shaped bent portion, it is possible to prevent the spring-like terminal from being sagged and to reduce the mounting height of the motor on the substrate. The power supply terminal consists of two parts: a relay terminal and a spring-like terminal. A relay terminal that can be easily attached to the motor terminal, such as solder connection, can be selected, and a spring-like terminal with an optimized spring width and the like should be used. Can do.

受け止め支持部としては、端蓋部の後方から軸方向部分を差し込み規制する案内溝を有することが望ましい。端蓋部の後方から軸方向部分を案内溝に沿って差し込むと、片持ち支持部にモールド支持されたばね状端子の第２の圧接部分と受け止め支持部との間に、軸方向部分の先端側が差し込まれて固定されるので、中継端子とばね状端子とが導通するから、中継端子の径方向部分をモータ端子に取り付けるための作業で済ませることができる。 The receiving support part preferably has a guide groove for inserting and restricting the axial part from the rear of the end cover part. When the axial part is inserted along the guide groove from the rear of the end cover part, the tip side of the axial part is located between the second press-contact part of the spring-like terminal molded and supported by the cantilever support part and the receiving support part. Since it is inserted and fixed, the relay terminal and the spring-like terminal are electrically connected, so that the work for attaching the radial portion of the relay terminal to the motor terminal can be completed.

第２の圧接部分の形状としては、例えば、受け止め支持部側に膨出した折り曲げ部分であれば好く、ばね状端子の成形を簡略化できる。 As the shape of the second pressure contact portion, for example, a bent portion that bulges toward the receiving support portion is preferable, and the formation of the spring-like terminal can be simplified.

本発明によれば、エンドブラケットは中継端子とばね状端子とを支持して両者を電気的に接続する端子支持部を一体的に有しているため、ばね状端子はＵ字状の折り曲げ部位を持たないので、基板上に安定して載置できることは勿論、ばね状端子としてのへたりを防止でき、またモータの基板上での実装高さを低くできる。 According to the present invention, since the end bracket integrally has a terminal support portion that supports the relay terminal and the spring-like terminal and electrically connects them, the spring-like terminal has a U-shaped bent portion. Therefore, it is possible not only to be stably placed on the substrate but also to prevent the spring-like terminal from being sagged and to reduce the mounting height of the motor on the substrate.

次に、本発明の実施形態を添付図面に基づいて説明する。図１は本発明の実施例に係る電磁振動体を示す斜視図、図２は同電磁振動体の側面図、図３は同電磁振動体から弾性外囲体を取り外した振動モータを示す斜視図、図４は同振動モータを一部切断した状態を示す側面図、図５は同振動モータにおけるエンドブラケットを示す斜視図、図６は同エンドブラケットを切断した状態を示す断面図、図７は同振動モータに用いる一対の中継端子を示す斜視図である。 Next, embodiments of the present invention will be described with reference to the accompanying drawings. 1 is a perspective view showing an electromagnetic vibrating body according to an embodiment of the present invention, FIG. 2 is a side view of the electromagnetic vibrating body, and FIG. 3 is a perspective view showing a vibration motor with an elastic enclosure removed from the electromagnetic vibrating body. 4 is a side view showing a state in which the vibration motor is partially cut, FIG. 5 is a perspective view showing an end bracket in the vibration motor, FIG. 6 is a sectional view showing a state in which the end bracket is cut, and FIG. It is a perspective view which shows a pair of relay terminal used for the vibration motor.

本例の電磁振動体１は振動モータ２の胴部に弾性外囲体３を被せて成る。振動モータ２は、図３及び図４に示す如く、ロータ（図示せず）を内蔵したモータケース１０と、このモータケース１０の前方へ突出したモータ軸（図示せず）に取着した偏心錘２０と、モータケース１０の後端開口を塞ぐ端蓋部３１を持つ樹脂製のエンドブラケット３０とを有する。 The electromagnetic vibrating body 1 of this example is formed by covering the body of a vibration motor 2 with an elastic envelope 3. 3 and 4, the vibration motor 2 includes an eccentric weight attached to a motor case 10 including a rotor (not shown) and a motor shaft (not shown) protruding forward of the motor case 10. 20 and a resin end bracket 30 having an end lid portion 31 that closes the rear end opening of the motor case 10.

端蓋部３１は後方へ突出する一対のモータ端子２ａ，２ａを備えており、モータ端子２ａ，２ａはブラシ対（図示せず）に電気的に接続している。エンドブラケット３０は、端蓋部３１と一体的な端子支持部３２を併有している。この端子支持部３２はモータケース１０の後端下部に臨んでいる。 The end cover part 31 is provided with a pair of motor terminals 2a and 2a protruding rearward, and the motor terminals 2a and 2a are electrically connected to a brush pair (not shown). The end bracket 30 has a terminal support portion 32 integral with the end lid portion 31. The terminal support portion 32 faces the lower rear end of the motor case 10.

本例の給電端子はモータ端子２ａ，２ａに半田等で取り付けられる中継端子４０と基板上に圧接して導電接続するための板ばね状端子５０とから成る。中継端子４０は、図７に示すＬ字状片であり、端蓋部３１の端面に重なりモータ端子２ａ，２ａに電気的に接続してモータ軸（図示せず）に対する径方向の下方へ延在する径方向部分４１とこの下端から折曲してモータ軸と略平行で前方へ延在する軸方向部分４２とから成る。一方、板ばね状端子５０は自由端側５１に基板（図示せず）上に圧接すべき第１の圧接部分５１ａを有し、固定端側５２は端子支持部３２の片持ち支持部３２ａにて自由端側５１を後方へ向けた状態でモールド固定されている。中継端子４０の軸方向部分４２は端子支持部３２の受け止め支持部３２ｂに重なっており、軸方向部分４２の先端側は受け止め支持部３２ｂと板ばね状端子５０の第２の圧接部分５０ａとの間に挟着されている。本例の第２の圧接部分５０ａは受け止め支持部３２ｂ寄りに膨出した折り曲げ部分として形成されている。受け止め支持部３２ｂは端蓋部３１の後方から軸方向部分４２を差し込み規制する案内溝Ａを有している。板ばね状端子５０の自由端側５１は軸方向部分４２の真下で位置し、第２の圧接部分５０ａから斜め下方に向けた中間部分５３を介して形成されている。 The power supply terminal of this example includes a relay terminal 40 attached to the motor terminals 2a and 2a by solder or the like and a leaf spring-like terminal 50 for press-contacting on the substrate for conductive connection. The relay terminal 40 is an L-shaped piece shown in FIG. 7 and overlaps the end surface of the end cover 31 and is electrically connected to the motor terminals 2a and 2a to extend downward in the radial direction with respect to the motor shaft (not shown). It consists of an existing radial portion 41 and an axial portion 42 that is bent from the lower end and extends forward in parallel with the motor shaft. On the other hand, the leaf spring-like terminal 50 has a first press-contact portion 51 a to be pressed on a substrate (not shown) on the free end side 51, and the fixed end 52 is connected to the cantilever support portion 32 a of the terminal support portion 32. The mold is fixed with the free end 51 facing rearward. The axial portion 42 of the relay terminal 40 overlaps the receiving support portion 32 b of the terminal support portion 32, and the distal end side of the axial portion 42 is between the receiving support portion 32 b and the second pressure contact portion 50 a of the leaf spring-like terminal 50. It is sandwiched between them. The second press-contact portion 50a in this example is formed as a bent portion that bulges toward the receiving support portion 32b. The receiving support portion 32 b has a guide groove A that inserts and restricts the axial portion 42 from the rear of the end lid portion 31. The free end side 51 of the leaf spring-shaped terminal 50 is located directly below the axial portion 42, and is formed via an intermediate portion 53 that faces obliquely downward from the second pressure contact portion 50a.

本例の振動モータ２の組み付けにおいては、モータケース１０の後端開口をエンドブラケット３０の端蓋部３１で塞いだ後、中継端子４０の軸方向部分４２を端蓋部３１の後方から案内溝Ａに沿って差し込むと、片持ち支持部３２ａにモールド支持された板ばね状端子５０の第２の圧接部分５０ａと受け止め支持部３２ｂとの間に、軸方向部分４２の先端側が差し込まれて固定されるので、中継端子４０と板ばね状端子５０とが導通するから、中継端子４０の径方向部分４１をモータ端子２ａに取り付けるための作業で済ませることができる。 In assembling the vibration motor 2 of this example, the rear end opening of the motor case 10 is closed by the end lid portion 31 of the end bracket 30, and then the axial portion 42 of the relay terminal 40 is guided from the rear of the end lid portion 31 to the guide groove. When inserted along A, the distal end side of the axial portion 42 is inserted and fixed between the second press-contact portion 50a of the leaf spring-like terminal 50 molded and supported by the cantilever support portion 32a and the receiving support portion 32b. Therefore, since the relay terminal 40 and the leaf spring-shaped terminal 50 are electrically connected, the work for attaching the radial portion 41 of the relay terminal 40 to the motor terminal 2a can be completed.

受け止め支持部３２ｂ上に重なる軸方向部分４２の先端側が受け止め支持部３２ｂと板ばね状端子５０の折り曲げ状の第２の圧接部分５０ａとの間に挟着されているため、板ばね状端子５０は第２の圧接部分５０ａで中継端子４０に導通している。板ばね状端子５０が中継端子４０の前方に延びる軸方向部分４２に対し後方へ配向しているため、振動モータ２を基板上に安定して載置できる。板ばね状端子５０はＵ字状の折り曲げ部位を持たないので、板ばね状端子５０としてのへたりを防止でき、また振動モータ２の基板上での実装高さを低くできる。本例では給電端子としては中継端子４０と板ばね状端子５０との２部品となるが、板ばね状端子５０はインサート成形によりエンドブラケット３０に組み込み固定されており、モータ端子２ａに対して半田接続等の取り付けが容易な中継端子４０を選択でき、また、ばね幅等を最適化した板ばね状端子５０を用いることができるメリットもある。 Since the distal end side of the axial portion 42 that overlaps the receiving support portion 32b is sandwiched between the receiving support portion 32b and the bent second press-contact portion 50a of the leaf spring-like terminal 50, the leaf spring-like terminal 50 Is electrically connected to the relay terminal 40 at the second pressure contact portion 50a. Since the leaf spring-like terminal 50 is oriented rearward with respect to the axial portion 42 extending forward of the relay terminal 40, the vibration motor 2 can be stably placed on the substrate. Since the leaf spring-like terminal 50 does not have a U-shaped bent portion, it is possible to prevent the leaf spring-like terminal 50 from sagging and to reduce the mounting height of the vibration motor 2 on the substrate. In this example, the power supply terminal is composed of two parts, ie, the relay terminal 40 and the leaf spring-like terminal 50. The leaf spring-like terminal 50 is incorporated and fixed in the end bracket 30 by insert molding, and is soldered to the motor terminal 2a. There is an advantage that the relay terminal 40 which can be easily attached such as connection can be selected, and the leaf spring-like terminal 50 having an optimized spring width and the like can be used.

本発明の実施例に係る電磁振動体を示す斜視図である。It is a perspective view which shows the electromagnetic vibrating body which concerns on the Example of this invention. 同電磁振動体の側面図である。It is a side view of the same electromagnetic vibrating body. 同電磁振動体から弾性外囲体を取り外した振動モータを示す斜視図である。It is a perspective view which shows the vibration motor which removed the elastic enclosure from the electromagnetic vibrating body. 同振動モータを一部切断した状態を示す側面図である。It is a side view showing the state where a part of the vibration motor was cut. 同振動モータにおけるエンドブラケットを示す斜視図である。It is a perspective view which shows the end bracket in the vibration motor. 同エンドブラケットを切断した状態を示す断面図である。It is sectional drawing which shows the state which cut | disconnected the end bracket. 図７は同振動モータに用いる一対の中継端子を示す斜視図である。FIG. 7 is a perspective view showing a pair of relay terminals used in the vibration motor.

符号の説明Explanation of symbols

１…電磁振動体
２…振動モータ
２ａ…モータ端子
３…弾性外囲体
１０…モータケース
２０…偏心錘
３０…エンドブラケット
３１…端蓋部
３２…端子支持部
３２ａ…片持ち支持部
３２ｂ…受け止め支持部
４０…中継端子
４１…径方向部分
４２…軸方向部分
５０…板ばね状端子
５０ａ…第２の圧接部分
５１…自由端側
５１ａ…第１の圧接部分
５２…固定端側
５３…中間部分
Ａ…案内溝 DESCRIPTION OF SYMBOLS 1 ... Electromagnetic vibrating body 2 ... Vibration motor 2a ... Motor terminal 3 ... Elastic enclosure 10 ... Motor case 20 ... Eccentric weight 30 ... End bracket 31 ... End cover part 32 ... Terminal support part 32a ... Cantilever support part 32b ... Receiving Support portion 40 ... Relay terminal 41 ... Radial portion 42 ... Axial portion 50 ... Leaf spring-like terminal 50a ... Second press contact portion 51 ... Free end side 51a ... First press contact portion 52 ... Fixed end side 53 ... Intermediate portion A ... Guide groove

Claims

後方へ突出するモータ端子を備えてモータケースの後端開口を塞ぐ端蓋部及び前記モータケースの後端側下部に臨む端子支持部を一体的に有する樹脂製ブラケットと、前記モータ端子に電気的に接続してモータ軸に対する径方向の下方へ延在する径方向部分及びこの径方向部分の下端から折曲して前記モータ軸と略平行で前方へ延在する軸方向部分を有する中継端子と、基板上に圧接すべき第１の圧接部分を自由端側に持つばね状端子とを有し、前記端子支持部は、前記自由端側を後方へ向けた状態で前記ばね状端子の固定端側をモールドした片持ち支持部と、前記軸方向部分が重なる受け止め支持部と一体的に有し、前記軸方向部分の先端側は前記受け止め支持部と前記ばね状端子の第２の圧接部分との間に挟着されて成り、前記自由端側は前記軸方向部分の真下で前記第２の圧接部分から斜め下方に向けた中間部分を介して形成されていることを特徴とするモータ。 A resin bracket having a motor terminal protruding rearward and closing a rear end opening of the motor case, and a terminal support portion facing the lower end of the rear end of the motor case, and an electrical connection to the motor terminal And a relay terminal having a radial portion extending downward in the radial direction with respect to the motor shaft and an axial portion bent from the lower end of the radial portion and extending forward in parallel with the motor shaft. A spring-like terminal having a first press-contact portion to be press-contacted on the substrate on a free end side, and the terminal support portion is a fixed end of the spring-like terminal with the free end side facing rearward. A cantilever support portion molded on the side, and a receiving support portion where the axial portion overlaps, and a distal end side of the axial direction portion includes the receiving support portion and a second pressure contact portion of the spring-like terminal The free end side is sandwiched between Motor, characterized in that it is formed through an intermediate portion obliquely downward from the second pressing portion in beneath the axial portion.

請求項１に記載のモータにおいて、前記受け止め支持部は、前記端蓋部の後方から前記軸方向部分を差し込み規制する案内溝を有することを特徴とするモータ。 2. The motor according to claim 1, wherein the receiving support portion includes a guide groove for inserting and restricting the axial portion from the rear of the end cover portion.

請求項１又は請求項２に記載のモータにおいて、前記第２の圧接部分は前記受け止め支持部側に膨出した折り曲げ部分であることを特徴とするモータ。 3. The motor according to claim 1, wherein the second pressure contact portion is a bent portion that bulges toward the receiving support portion.