KR20080074330A - Bar type vibration motor - Google Patents

Bar type vibration motor Download PDF

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Publication number
KR20080074330A
KR20080074330A KR1020070013229A KR20070013229A KR20080074330A KR 20080074330 A KR20080074330 A KR 20080074330A KR 1020070013229 A KR1020070013229 A KR 1020070013229A KR 20070013229 A KR20070013229 A KR 20070013229A KR 20080074330 A KR20080074330 A KR 20080074330A
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KR
South Korea
Prior art keywords
fixed
coil
weight
magnet
vibration motor
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Application number
KR1020070013229A
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Korean (ko)
Inventor
김상진
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엘지이노텍 주식회사
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Priority to KR1020070013229A priority Critical patent/KR20080074330A/en
Publication of KR20080074330A publication Critical patent/KR20080074330A/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/065—Electromechanical oscillators; Vibrating magnetic drives
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/04—Commutators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/54—Disc armature motors or generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/075—Means for converting reciprocating motion into rotary motion or vice versa using crankshafts or eccentrics

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

A bar type vibration motor is provided to prevent a coil from being disconnected by fixing a weight for generating a vibration to a supporting member which is fixed on a rotation axis. A bar type vibration motor includes a housing(110), a rotation axis(150), a magnet(135), a coil(170), a commutator(181), and a weight. The rotation axis is rotatably installed inside the housing. The magnet is fixed inside the housing to cover the rotation axis. The supporting member is fixed on the rotation axis. The coil is fixed on the supporting member, covers the magnet, and is rotated by the action with the magnet. The commutator is fixed on the supporting member. A side of the commutator is coupled to the coil. The other side of the commutator is coupled to an external power. The weight is fixed on the supporting member, and generates a vibration if the rotation axis rotates.

Description

바형 진동 모터 {BAR TYPE VIBRATION MOTOR}Bar Type Vibration Motor {BAR TYPE VIBRATION MOTOR}

도 1은 종래의 바형 진동 모터의 단면도.1 is a cross-sectional view of a conventional bar vibration motor.

도 2는 본 발명의 일 실시예에 따른 바형 진동 모터의 단면도.2 is a cross-sectional view of a bar-shaped vibration motor according to an embodiment of the present invention.

도 3은 도 2에 도시된 웨이트의 저면을 보인 사시도.3 is a perspective view showing the bottom of the weight shown in FIG.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

110 : 하우징 120 : 베이스110 housing 120 base

131 : 요크 135 : 마그네트131: York 135: magnet

140 : 베어링 150 : 회전축140: bearing 150: rotating shaft

160 : 지지부재 170 : 코일160: support member 170: coil

190 : 웨이트190 weight

본 발명은 바형 진동 모터에 관한 것이다.The present invention relates to a bar type vibration motor.

일반적으로, 이동통신기기 등에는 착신신호로 진동을 발생하기 위한 진동 모터가 내장된다. 진동 모터에는 편평형 및 바형 진동 모터 등이 있고, 바형 진동 모터에는 분동 내장형 및 분동 외장형 바형 진동 모터가 있다.In general, a mobile communication device or the like includes a vibration motor for generating vibration as an incoming signal. Vibration motors include flat type and bar type vibration motors, and bar type vibration motors include weight built-in type and weight external type bar type vibration motors.

도 1은 종래의 바형 진동 모터의 단면도이다.1 is a cross-sectional view of a conventional bar vibration motor.

도시된 바와 같이, 하우징(11)이 마련된다. 하우징(11)의 일측면에는 요크(13)의 일측 외주면이 결합되고, 개방된 타측면에는 베이스(15)가 결합된다. 요크(13)의 일측 내주면에 베어링(17)이 고정되고, 하우징(11)의 내부에 위치된 타측 외주면에는 링형상의 마그네트(19)가 고정된다.As shown, the housing 11 is provided. One outer side of the yoke 13 is coupled to one side of the housing 11, and the base 15 is coupled to the other open side. The bearing 17 is fixed to one inner circumferential surface of the yoke 13, and a ring-shaped magnet 19 is fixed to the other outer circumferential surface positioned inside the housing 11.

베어링(17) 및 베이스(15)에는 회전축(21)의 일단부측 및 타단부측이 지지되어 회전가능하게 설치되고, 요크(13)와 베이스(15) 사이의 회전축(21)에는 지지부재(23)가 고정된다. 지지부재(23)의 일측 외주면에는 코일(25)이 고정되어 마그네트(19)를 감싸고, 타측에는 코일(25)과 접속된 정류자(27)가 고정된다.One end and the other end side of the rotating shaft 21 are supported and rotatably installed on the bearing 17 and the base 15, and the supporting member 23 is provided on the rotating shaft 21 between the yoke 13 and the base 15. ) Is fixed. The coil 25 is fixed to one side outer circumferential surface of the support member 23 to surround the magnet 19, and the other side of the support member 23 is fixed to the commutator 27 connected to the coil 25.

그리고, 베이스(15)에는 상호 접속된 브러쉬(31)와 단자(33)가 각각 설치되는데, 브러쉬(31)는 정류자(27)와 접촉되고 단자(33)는 외부의 전원측과 접속된다.The base 15 is provided with a brush 31 and a terminal 33 interconnected with each other. The brush 31 is in contact with the commutator 27 and the terminal 33 is connected with an external power supply side.

그리하여, 외부의 전원이 단자(33)→브러쉬(31)→정류자(27)를 통하여 코일(25)로 공급되면, 코일(25)과 마그네트(19) 사이에 형성되는 전자기력에 의하여 마그네트(19)가 회전한다. 그러면, 코일(25)의 외주면에 접착된 웨이트(35)에 의하여 진동이 발생하는 것이다.Thus, when external power is supplied to the coil 25 through the terminal 33 → brush 31 → commutator 27, the magnet 19 is formed by the electromagnetic force formed between the coil 25 and the magnet 19. Rotates. Then, vibration is generated by the weight 35 adhered to the outer circumferential surface of the coil 25.

상기와 같은 종래의 바형 진동 모터는 코일(25)의 외주면에 웨이트(35)가 접착된다. 이로인해, 낙하 충격 시험시 웨이트(35)의 이탈에 의하여 웨이트(35)와 접착된 코일(25)의 부위가 단선되는 단점이 있다.In the conventional bar type vibration motor as described above, the weight 35 is adhered to the outer circumferential surface of the coil 25. Due to this, there is a disadvantage in that the portion of the coil 25 adhered to the weight 35 is disconnected due to the detachment of the weight 35 during the drop impact test.

본 발명은 상기와 같은 종래 기술의 문제점을 해소하기 위하여 안출된 것으 로, 본 발명의 목적은 웨이트로 인해 코일이 단선되는 것을 방지할 수 있는 바형 진동 모터를 제공함에 있다.The present invention has been made to solve the problems of the prior art as described above, an object of the present invention is to provide a bar-type vibration motor that can prevent the coil is disconnected due to the weight.

상기 목적을 달성하기 위한 본 발명에 따른 바형 진동 모터는, 하우징;Bar-type vibration motor according to the present invention for achieving the above object, the housing;

상기 하우징의 내부에 회전가능하게 설치된 회전축; 상기 회전축을 감싸는 형태로 상기 하우징의 내부에 고정된 마그네트; 상기 회전축에 고정된 지지부재; 상기 지지부재에 고정되어 상기 마그네트를 감싸며 상기 마그네트와의 작용에 의하여 회전하는 코일; 상기 지지부재에 고정되며, 일측은 상기 코일과 접속되고 타측은 외부의 전원과 접속되는 정류자; 상기 지지부재에 고정되며 상기 회전축이 회전하면 진동을 발생하는 웨이트를 포함한다.A rotating shaft rotatably installed in the housing; A magnet fixed to the inside of the housing in a form surrounding the rotating shaft; A support member fixed to the rotating shaft; A coil fixed to the support member to surround the magnet and rotate by the action of the magnet; A commutator fixed to the support member, the one side of which is connected to the coil and the other side of which is connected to an external power source; It is fixed to the support member and includes a weight for generating a vibration when the rotating shaft rotates.

이하, 첨부한 도면을 참조하여 본 발명의 일 실시예에 따른 바형 진동 모터를 상세히 설명한다.Hereinafter, a bar type vibration motor according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 일 실시예에 따른 바형 진동 모터의 단면도이고, 도 3은 도 2에 도시된 웨이트의 저면을 보인 사시도이다.2 is a cross-sectional view of a bar-shaped vibration motor according to an embodiment of the present invention, Figure 3 is a perspective view showing the bottom of the weight shown in FIG.

도시된 바와 같이, 바형 진동 모터는 일측면에는 결합관(113)이 형성되고 타측면은 개방된 하우징(110)을 가지고, 하우징(110)의 개방된 타측면에는 베이스(120)가 결합된다.As shown, the bar-shaped vibration motor has a coupling pipe 113 is formed on one side and the other side has an open housing 110, the base 120 is coupled to the other open side of the housing 110.

하우징(110)의 결합관(113)에는 원통형의 요크(131)의 일측이 삽입 고정되고, 하우징(110)의 내부에 위치된 요크(131)의 타측 외주면에는 링형상의 마그네트(135)가 고정된다. 돌출된 결합관(113)에 요크(131)가 결합되므로, 하우징(110) 에 견고하게 결합되는 것이다.One side of the cylindrical yoke 131 is inserted and fixed to the coupling tube 113 of the housing 110, and a ring-shaped magnet 135 is fixed to the outer peripheral surface of the other side of the yoke 131 located inside the housing 110. do. Since the yoke 131 is coupled to the protruding coupling tube 113, it is firmly coupled to the housing 110.

요크(131)의 일측 내주면에는 베어링(140)이 고정되고, 베어링(140) 및 베이스(120)에는 회전축(150)의 일단부측 및 타단부측이 각각 지지되어 회전가능하게 설치된다.The bearing 140 is fixed to one side inner circumferential surface of the yoke 131, and one end side and the other end side of the rotation shaft 150 are rotatably installed on the bearing 140 and the base 120, respectively.

요크(131)의 타측과 베이스(120) 사이의 회전축(150) 외주면에는 원통형상의 지지부재(160)가 고정된다.The cylindrical support member 160 is fixed to the outer circumferential surface of the rotation shaft 150 between the other side of the yoke 131 and the base 120.

지지부재(160)의 외주면 일측에는 코일(170)이 고정되는데, 코일(170)은 마그네트(135)를 감싸는 형태로 배치된다. 지지부재(170)의 타측에는 코일(170)과 접속된 정류자(181)와 진동을 발생하는 웨이트(190)가 고정된다.The coil 170 is fixed to one side of the outer circumferential surface of the support member 160, and the coil 170 is disposed in a form surrounding the magnet 135. The other side of the support member 170 is fixed to the commutator 181 connected to the coil 170 and the weight 190 for generating vibration.

그리고, 베이스(120)에는 상호 접속된 브러쉬(183)와 단자(185)가 설치되는데, 브러쉬(183)는 정류자(181)와 접속되고 단자(185)는 외부의 전원측과 접속된다. 그리하여, 외부의 전원이 단자(185)→브러쉬(183)→정류자(181)를 통하여 코일(170)로 공급되면, 코일(170)과 마그네트(135) 사이에 형성되는 전자기력에 의하여 코일(170)이 회전하면서 지지부재(160), 회전축(150) 및 웨이트(190)를 회전시킨다. 그러면, 웨이트(190)에 의하여 진동이 발생하는 것이다.The base 120 is provided with a brush 183 and a terminal 185 interconnected with each other. The brush 183 is connected with a commutator 181 and the terminal 185 is connected with an external power supply side. Thus, when the external power is supplied to the coil 170 through the terminal 185 → brush 183 → commutator 181, the coil 170 by the electromagnetic force formed between the coil 170 and the magnet 135 While rotating, the support member 160, the rotation shaft 150, and the weight 190 are rotated. Then, vibration is generated by the weight 190.

본 실시예에 따른 바형 진동 모터는 웨이트(190)로 인해 코일(170)이 단선되는 것을 방지하기 위하여 웨이트(190)가 지지부재(160)에 결합된다. 상세히 설명하면, 웨이트(190)는 코일(170)의 외주면과 대응되는 곡률로 마련되어 코일(170)의 대략 반을 감싸는 몸체(191)와 몸체(191)의 일단부에서 연장 형성되여 지지부재(160)의 타측 외주면에 고정되는 고정편(195)을 가진다. 즉, 웨이트(190)의 고정 편(195)이 지지부재(160)에 고정되므로, 웨이트(190)가 이탈하여도 웨이트(190)로 인하여 코일(170)이 손상되지 않는다.In the bar type vibration motor according to the present embodiment, the weight 190 is coupled to the support member 160 to prevent the coil 170 from being disconnected due to the weight 190. In detail, the weight 190 is formed with a curvature corresponding to the outer circumferential surface of the coil 170 and extends from one end of the body 191 and the body 191 to cover approximately half of the coil 170 to support the member 160. And a fixing piece 195 fixed to the other outer circumferential surface thereof. That is, since the fixing piece 195 of the weight 190 is fixed to the support member 160, even if the weight 190 is separated, the coil 170 is not damaged by the weight 190.

이상에서 설명한 바와 같이, 본 발명에 따른 바형 진동 모터는 진동을 발생하는 웨이트가 회전축에 고정된 지지부재에 고정된다. 그러므로, 낙하 충격 시험 등에 의하여 웨이트가 이탈되어도 코일은 웨이트의 영향을 전혀 받지 않으므로, 단선되지 않는 것이다.As described above, the bar-shaped vibration motor according to the present invention is fixed to a support member having a weight for generating vibration fixed to the rotating shaft. Therefore, even if the weight is separated by the drop impact test or the like, the coil is not affected by the weight at all, and thus the wire is not disconnected.

이상에서는, 본 발명의 일 실시예에 따라 본 발명을 설명하였지만, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 변경 및 변형한 것도 본 발명에 속함은 당연하다.In the above, the present invention has been described in accordance with one embodiment of the present invention, but those skilled in the art to which the present invention pertains have been changed and modified without departing from the spirit of the present invention. Of course.

Claims (2)

하우징;housing; 상기 하우징의 내부에 회전가능하게 설치된 회전축;A rotating shaft rotatably installed in the housing; 상기 회전축을 감싸는 형태로 상기 하우징의 내부에 고정된 마그네트;A magnet fixed to the inside of the housing in a form surrounding the rotating shaft; 상기 회전축에 고정된 지지부재;A support member fixed to the rotating shaft; 상기 지지부재에 고정되어 상기 마그네트를 감싸며 상기 마그네트와의 작용에 의하여 회전하는 코일;A coil fixed to the support member to surround the magnet and rotate by the action of the magnet; 상기 지지부재에 고정되며, 일측은 상기 코일과 접속되고 타측은 외부의 전원과 접속되는 정류자;A commutator fixed to the support member, the one side of which is connected to the coil and the other side of which is connected to an external power source; 상기 지지부재에 고정되며 상기 회전축이 회전하면 진동을 발생하는 웨이트를 포함하는 바형 진동 모터.A bar-type vibration motor fixed to the support member and comprising a weight for generating a vibration when the rotating shaft rotates. 제 1 항에 있어서,The method of claim 1, 상기 웨이트는 상기 코일의 외주면 일측을 감싸는 몸체와 상기 몸체에서 연장 형성되어 상기 지지부재에 고정되는 고정편을 가지는 특징으로 하는 바형 진동 모터.The weight is a bar-type vibration motor having a body surrounding one side of the outer circumferential surface of the coil and a fixed piece extending from the body and fixed to the support member.
KR1020070013229A 2007-02-08 2007-02-08 Bar type vibration motor KR20080074330A (en)

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