KR100828646B1 - Coin type vibration motor - Google Patents

Coin type vibration motor Download PDF

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Publication number
KR100828646B1
KR100828646B1 KR1020060004354A KR20060004354A KR100828646B1 KR 100828646 B1 KR100828646 B1 KR 100828646B1 KR 1020060004354 A KR1020060004354 A KR 1020060004354A KR 20060004354 A KR20060004354 A KR 20060004354A KR 100828646 B1 KR100828646 B1 KR 100828646B1
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South Korea
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double
vibration motor
pcb
type vibration
coin
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KR1020060004354A
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Korean (ko)
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KR20070075746A (en
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장동근
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엘지이노텍 주식회사
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • B06B1/045—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism using vibrating magnet, armature or coil system
    • 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
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/14—Casings; Enclosures; Supports
    • 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)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

커버의 저면에 양면 PCB(Printed Circuit Board)를 직접 결합한 코인형 진동 모터가 개시된다. 상기 코인형 진동 모터는 커버의 저면에 베이스의 기능도 하는 양면 PCB가 결합되므로, 종래의 코인형 진동 모터에 비하여 부품수가 감소되고 조립공정이 간단하여 원가가 절감된다. 또한, 양면 PCB가 금속제로 마련되므로 종래의 열특성이 우수한 합성수지제의 베이스에 비하여 경제적이다. 또한, 양면 PCB가 금속제로 마련되므로 종래의 합성수지제의 베이스에 비하여 강도가 향상된다.Disclosed is a coin type vibration motor in which a double sided printed circuit board (PCB) is directly coupled to a bottom of a cover. Since the coin-type vibration motor is coupled to a double-sided PCB which also functions as a base on the bottom of the cover, the number of parts is reduced and the assembly process is simple compared to the conventional coin-type vibration motor, thereby reducing the cost. In addition, since the double-sided PCB is made of metal, it is more economical than the base of synthetic resin having excellent thermal characteristics. In addition, since the double-sided PCB is made of metal, the strength is improved compared to the base of the conventional synthetic resin.

Description

코인형 진동 모터 {COIN TYPE VIBRATION MOTOR}COIN TYPE VIBRATION MOTOR}

도 1은 종래의 코인형 진동 모터의 단면도.1 is a cross-sectional view of a conventional coin-type vibration motor.

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

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

110 : 커버 120 : 양면 PCB110: cover 120: double-sided PCB

121 : 단자 130 : 지지축121: terminal 130: support shaft

150 : 회전자 160 : 코일150: rotor 160: coil

본 발명은 커버의 저면에 양면 PCB(Printed Circuit Board)를 직접 결합한 코인형 진동 모터에 관한 것이다.The present invention relates to a coin type vibration motor that directly couples a double-sided printed circuit board (PCB) to the bottom of the cover.

도 1은 일반적인 코인형 진동 모터의 단면도로써, 이를 설명한다.1 is a cross-sectional view of a general coin-type vibration motor, which will be described.

도시된 바와 같이, 상호 결합되어 내부에 소정 공간을 형성하는 합성수지제의 베이스(11)와 금속제의 커버(13)가 마련된다. 베이스(11) 및 커버(13)에는 지지축(15)의 하단부 및 상단부가 각각 지지되고, 지지축(15)의 외주면에는 베어링(17)이 삽입된다. 베어링(17)의 외주면에는 편심된 회전자(20)가 회전가능하게 설치되 는데, 회전자(20)는 로터요크(21), 로터요크(21)의 저면에 고정된 마그네트(23) 및 웨이트(25)를 가진다.As shown in the drawing, a base 11 made of synthetic resin and a cover 13 made of metal are provided to be bonded to each other to form a predetermined space therein. The lower end and the upper end of the support shaft 15 are respectively supported by the base 11 and the cover 13, and a bearing 17 is inserted into the outer circumferential surface of the support shaft 15. An eccentric rotor 20 is rotatably installed on the outer circumferential surface of the bearing 17. The rotor 20 is a rotor yoke 21, a magnet 23 fixed to the bottom of the rotor yoke 21, and a weight. Has 25.

베이스(11)의 상면에는 PCB(Printed Circuit Board)(30)가 고정되고, 마그네트(23)와 대향하는 PCB(30)의 부위에는 권선된 코일(40)이 고정된다. 그리고, 베이스(11)에는 단자(31)가 삽입되어 PCB(30)와 접속된다. 그리하여, 외부의 전원이 단자(31)를 통하여 코일(40)로 공급되면, 코일(40)과 마그네트(23)의 상호 작용에 의하여 회전자(20)가 회전하면서 진동을 발생하는 것이다. PCB(30)는 에폭시 PCB 또는 플렉시블 PCB이다.A printed circuit board (PCB) 30 is fixed to an upper surface of the base 11, and a coiled coil 40 is fixed to a portion of the PCB 30 opposite to the magnet 23. The terminal 31 is inserted into the base 11 and connected to the PCB 30. Thus, when external power is supplied to the coil 40 through the terminal 31, the rotor 20 rotates by the interaction of the coil 40 and the magnet 23 to generate vibration. PCB 30 is an epoxy PCB or a flexible PCB.

상기와 같은 종래의 코인형 진동 모터는 베이스(11)와 단자(31)를 별도로 제작하여, 단자(31)를 베이스(11)에 삽입하여야 하므로, 그 제조공정이 복잡하여 원가가 상승하는 단점이 있다.In the conventional coin-type vibration motor as described above, since the base 11 and the terminal 31 are manufactured separately, the terminal 31 must be inserted into the base 11, and thus, the manufacturing process is complicated and the cost increases. have.

그리고, 조립이 완료된 코인형 진동 모터는 리플로(Reflow) 공정에 투입되어 이동통신기기 등과 같은 제품에 조립된다. 상기 리플로공정 중에는 단자(31)를 상기 제품의 전원측과 접속하기 위한 납땜공정이 있는데, 상기 납땜공정은 260℃의 고온에서 수행된다.In addition, the coin-type vibration motor after the assembly is completed is put into a reflow process and assembled in a product such as a mobile communication device. During the reflow process, there is a soldering process for connecting the terminal 31 to the power supply side of the product. The soldering process is performed at a high temperature of 260 ° C.

이로인해, 상기와 같은 종래의 코인형 진동 모터의 베이스(11)는 고온의 환경에서도 견딜수 있는 열특성이 우수한 고가의 합성수지제가 사용된다. 이로인해, 코인형 진동 모터의 원가가 더욱 상승하는 단점이 있다.For this reason, as the base 11 of the conventional coin-type vibration motor as described above, an expensive synthetic resin having excellent thermal characteristics that can withstand a high temperature environment is used. As a result, the cost of the coin-type vibration motor is further increased.

또한, 합성수지제의 베이스(11)를 코킹(Caulking)하여 금속제의 커버(13)에 결합하는데, 베이스(11)의 낙하 강도 및 파괴 강도가 약한 단점이 있다.In addition, although the base 11 made of synthetic resin is caulked to be bonded to the metal cover 13, there is a disadvantage in that the drop strength and the breaking strength of the base 11 are weak.

본 발명은 상기와 같은 종래 기술의 문제점을 해소하기 위하여 안출된 것으로, 본 발명의 목적은 원가를 절감할 수 있는 코인형 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 to provide a coin-type vibration motor that can reduce the cost.

본 발명의 다른 목적은 낙하 강도 및 파괴 강도를 향상시킬 수 있는 코인형 진동 모터를 제공함에 있다.Another object of the present invention to provide a coin-type vibration motor that can improve the falling strength and breaking strength.

상기 목적을 달성하기 위한 본 발명에 따른 코인형 진동 모터는, 저면이 개방된 커버; 상기 커버의 저면에 결합된 양면 PCB(Printed Circuit Board); 상기 커버 및 상기 양면 PCB에 상단부측 및 하단부측이 각각 지지된 지지축; 상기 지지축에 회전가능하게 설치되어 진동을 발생하는 편심된 회전자; 상기 회전자와 대향되게 상기 PCB에 고정되어 외부의 전원측과 접속되며, 상기 회전자와의 작용에 의하여 상기 회전자를 회전시키는 코일을 구비한다.Coin-type vibration motor according to the present invention for achieving the above object, the bottom is open cover; A double-sided printed circuit board (PCB) coupled to the bottom of the cover; A support shaft having an upper end side and a lower end side supported on the cover and the double-sided PCB, respectively; An eccentric rotor rotatably installed on the support shaft to generate vibration; The coil is fixed to the PCB so as to face the rotor and is connected to an external power supply side, and has a coil for rotating the rotor by the action of the rotor.

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

도 2는 본 발명의 일 실시예에 따른 코인형 진동 모터의 단면도이다.2 is a cross-sectional view of a coin-type vibration motor according to an embodiment of the present invention.

도시된 바와 같이, 저면이 개방된 금속제의 커버(110)가 마련되고, 커버(110)의 저면에는 양면 PCB(Printed Circuit Board)(120)가 결합된다. 이때, 양면 PCB(120)의 상면 및 하면에 설치된 부품들은 상호 전기적으로 통전되게 설계된다.As shown, a metal cover 110 having an open bottom is provided, and a double-sided printed circuit board (PCB) 120 is coupled to the bottom of the cover 110. At this time, the components installed on the upper and lower surfaces of the double-sided PCB 120 are designed to be electrically connected to each other.

커버(110) 및 양면 PCB(120)에는 지지축(130)의 상단부측 및 하단부측이 각각 지지되고, 지지축(130)의 외주면에는 베어링(140)이 삽입되어 설치된다.The upper end side and the lower end side of the support shaft 130 are supported on the cover 110 and the double-sided PCB 120, respectively, and the bearing 140 is inserted into the outer circumferential surface of the support shaft 130.

베어링(140)의 외주면에는 편심된 회전자(150)가 회전가능하게 마련된다. 회전자(150)는 베어링(140)의 외주면에 회전가능하게 설치되며 편심된 자성체의 로터요크(151), 로터요크(151)의 저면에 고정되어 자기장을 발생하는 마그네트(153) 및 로터요크(151)의 저면에 고정되어 회전자(150)가 큰 진동을 가지게 하는 웨이트(155)를 가진다.An eccentric rotor 150 is rotatably provided on an outer circumferential surface of the bearing 140. The rotor 150 is rotatably installed on the outer circumferential surface of the bearing 140 and is fixed to the lower surface of the rotor yoke 151 and the rotor yoke 151 of the eccentric magnetic body and the magnet 153 and the rotor yoke (generating a magnetic field) The weight 155 is fixed to the bottom of the 151 to cause the rotor 150 to have a large vibration.

마그네트(153) 하측의 양면 PCB(120)의 상면에는 권선된 코일(160)이 접착 등에 의하여 고정된다. 그리하여, 외부의 전원이 양면 PCB(120)를 통하여 코일(160)에 공급되면, 코일(160)과 마그네트(153)의 작용에 의하여 회전자(150)가 회전하면서 진동을 발생하는 것이다. 이때, 양면 PCB(120)의 저면에는 외부의 전원측과 접속되어 외부의 전원을 코일(160)로 공급하기 위한 단자(121)가 마련된다.The wound coil 160 is fixed to the upper surface of the double-sided PCB 120 under the magnet 153 by adhesion or the like. Thus, when external power is supplied to the coil 160 through the double-sided PCB 120, the rotor 150 rotates by the action of the coil 160 and the magnet 153 to generate vibration. At this time, the bottom surface of the double-sided PCB 120 is provided with a terminal 121 connected to the external power supply side for supplying external power to the coil 160.

본 실시예에 따른 코인형 진동 모터는 커버(110)의 저면에 양면 PCB(120)가 결합된다. 즉, 양면 PCB(120)가 종래의 코인형 진동 모터의 베이스(11)(도 1참조) 기능을 하므로, 종래의 코인형 진동 모터에 비하여 부품 수가 줄어들고 조립 공정이 간단하여 원가가 절감된다.Coin-type vibration motor according to this embodiment is a double-sided PCB 120 is coupled to the bottom of the cover 110. That is, since the double-sided PCB 120 functions as the base 11 (see FIG. 1) of the conventional coin-type vibration motor, the number of parts is reduced and the assembly process is simple compared to the conventional coin-type vibration motor, thereby reducing the cost.

그리고, 커버(110)가 금속제이므로, 커버(110)의 저면에 결합되는 양면 PCB(120)도 금속제로 마련되는 것이 강도의 측면에서 바람직하다. 또한, 종래의 코인형 진동 모터의 베이스(11)(도 1참조)는 열특성이 우수한 고가의 합성수지제인 반면, 본 실시예에 따른 양면 PCB(120)는 금속제이므로 더욱 원가가 절감된다.In addition, since the cover 110 is made of metal, it is preferable that the double-sided PCB 120 coupled to the bottom of the cover 110 also be made of metal in terms of strength. In addition, while the base 11 of the conventional coin-type vibration motor (see FIG. 1) is an expensive synthetic resin having excellent thermal characteristics, the double-sided PCB 120 according to the present embodiment is made of metal, thereby further reducing costs.

이상에서 설명한 바와 같이, 본 발명에 따른 코인형 진동 모터는 커버의 저 면에 베이스의 기능도 하는 양면 PCB가 결합되므로, 종래의 코인형 진동 모터에 비하여 부품수가 감소되고 조립공정이 간단하여 원가가 절감된다.As described above, since the coin-type vibration motor according to the present invention has a double-sided PCB which also functions as a base on the bottom of the cover, the number of parts is reduced and the assembly process is simpler than the conventional coin-type vibration motor. Savings.

또한, 양면 PCB가 금속제로 마련되므로 종래의 열특성이 우수한 합성수지제의 베이스에 비하여 경제적이다.In addition, since the double-sided PCB is made of metal, it is more economical than the base of synthetic resin having excellent thermal characteristics.

또한, 양면 PCB가 금속제로 마련되므로 종래의 합성수지제의 베이스에 비하여 강도가 향상된다.In addition, since the double-sided PCB is made of metal, the strength is improved compared to the base of the conventional synthetic resin.

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 (3)

저면이 개방된 금속제의 커버;A metal cover with an open bottom surface; 상기 커버의 저면에 결합된 금속제의 양면 PCB(Printed Circuit Board);A metal double-sided printed circuit board (PCB) bonded to the bottom of the cover; 상기 커버 및 상기 양면 PCB에 상단부측 및 하단부측이 각각 지지된 지지축;A support shaft having an upper end side and a lower end side supported on the cover and the double-sided PCB, respectively; 상기 지지축에 회전가능하게 설치되어 진동을 발생하는 편심된 회전자;An eccentric rotor rotatably installed on the support shaft to generate vibration; 상기 회전자와 대향되게 상기 PCB에 고정되어 외부의 전원측과 접속되며, 상기 회전자와의 작용에 의하여 상기 회전자를 회전시키는 코일을 구비하는 것을 특징으로 하는 코인형 진동 모터.And a coil fixed to the PCB so as to face the rotor and connected to an external power supply side, the coil rotating the rotor by the action of the rotor. 삭제delete 제 1 항에 있어서,The method of claim 1, 상기 양면 PCB의 저면에는 상기 외부의 전원측과 접속되어 상기 외부의 전원을 상기 코일로 공급하기 위한 단자가 마련된 것을 특징으로 하는 코인형 진동 모터.Coin-type vibration motor is provided on the bottom surface of the double-sided PCB is connected to the external power supply side for supplying the external power to the coil.
KR1020060004354A 2006-01-16 2006-01-16 Coin type vibration motor KR100828646B1 (en)

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KR1020060004354A KR100828646B1 (en) 2006-01-16 2006-01-16 Coin type vibration motor

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KR100828646B1 true KR100828646B1 (en) 2008-05-09

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000007642A (en) * 1998-07-06 2000-02-07 이형도 Single side type vibration motor
KR20000044149A (en) * 1998-12-30 2000-07-15 이형도 Drum motor
KR20040110835A (en) * 2003-06-20 2004-12-31 삼성전기주식회사 Vibration motor
KR20050067497A (en) * 2003-12-29 2005-07-05 삼성전기주식회사 Vibration motor with easy assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000007642A (en) * 1998-07-06 2000-02-07 이형도 Single side type vibration motor
KR20000044149A (en) * 1998-12-30 2000-07-15 이형도 Drum motor
KR20040110835A (en) * 2003-06-20 2004-12-31 삼성전기주식회사 Vibration motor
KR20050067497A (en) * 2003-12-29 2005-07-05 삼성전기주식회사 Vibration motor with easy assembly

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