KR20110042666A - Vibration motor - Google Patents

Vibration motor Download PDF

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Publication number
KR20110042666A
KR20110042666A KR1020090099444A KR20090099444A KR20110042666A KR 20110042666 A KR20110042666 A KR 20110042666A KR 1020090099444 A KR1020090099444 A KR 1020090099444A KR 20090099444 A KR20090099444 A KR 20090099444A KR 20110042666 A KR20110042666 A KR 20110042666A
Authority
KR
South Korea
Prior art keywords
circuit board
printed circuit
coil
vibration motor
rotating body
Prior art date
Application number
KR1020090099444A
Other languages
Korean (ko)
Inventor
이경용
Original Assignee
자화전자(주)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 자화전자(주) filed Critical 자화전자(주)
Priority to KR1020090099444A priority Critical patent/KR20110042666A/en
Publication of KR20110042666A publication Critical patent/KR20110042666A/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
    • 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
    • H02K7/061—Means for converting reciprocating motion into rotary motion or vice versa using rotary unbalanced masses
    • H02K7/063—Means for converting reciprocating motion into rotary motion or vice versa using rotary unbalanced masses integrally combined with motor parts, e.g. motors with eccentric rotors
    • 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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/03—Machines characterised by the wiring boards, i.e. printed circuit boards or similar structures for connecting the winding terminations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
    • H02K2211/03—Machines characterised by circuit boards, e.g. pcb
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • H04M19/047—Vibrating means for incoming calls

Abstract

PURPOSE: A vibration motor is provided to shorten proves for coupling a coil and a printed circuit board. CONSTITUTION: A vibration motor comprises: a bearing(141) inserted to the center of a rotator(121); a weight body(122) for generating vibration by being inserted to one side of the rotator; a coil(131) forming magnetic filed according to the authorized power; a first printed circuit board(132) which is integrally formed with the coil; and a brush(160) for authorizing power to the first printed circuit board.

Description

Vibration Motors {VIBRATION MOTOR}

The present invention relates to a vibration motor, and more particularly, to a small vibration motor including a weight body.

The vibration motor is used to cause vibration as one of means for informing a user when a signal is received by the portable communication terminal. However, recently, in addition to signal reception, portable digital terminals, particularly digital terminals providing game functions, have been used for increasing the immersion of games by causing vibration to the user.

The vibration motor described above is required to be miniaturized due to the characteristics of portable devices that are being miniaturized.

The present invention is to provide a miniaturized vibration motor as an invention for solving the problems of the prior art as described above.

Vibration motor according to the present invention,

Bearings;

A rotating body rotatably inserted into the center of the bearing;

A weight body inserted into one side of the rotating body to generate vibration;

A first printed circuit board inserted into the rotating body and forming a magnetic field according to the applied power, and applying power to the coil and integrally formed with the coil;

Brackets;

A second printed circuit board mounted on the bracket;

A magnetic material positioned on the second printed circuit board; A brush positioned between the second printed circuit board and the magnetic material to apply power to the first printed circuit board;

A shaft inserted in the center of the bearing,

As the coil, a MEMS coil integrally formed on the first printed circuit board is used.

The vibration motor according to the present invention can increase the amount of the coil to be mounted by using a MEMS coil as a coil. In addition, since the present invention can be formed directly on the printed circuit board, a space for embedding a separate coil is not required, so that a thinner vibration motor can be provided.

In particular, the present invention can shorten the process for joining the coil and the printed circuit board by integrally forming the coil and the printed circuit board, and compared to the conventional vibration motor that combines the coil and the printed circuit board by soldering or the like. There is an advantage that can minimize the occurrence of defects such as separation between the substrates.

Hereinafter, a flat vibration motor according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is an exploded perspective view of a vibration motor. Referring to FIG. 1, the vibration motor 100 according to the present invention includes a bearing 141, a rotating body 121 rotatably inserted into the center of the bearing 141, and one side of the rotating body 121. A weight body 122 inserted into the vibration body and a coil 131 inserted into the rotating body 121 to form a magnetic field according to an applied power and power applied to the coil 131 and the coil 131 The first printed circuit board 132 formed integrally with the second printed circuit board 132, the bracket 180, the second printed circuit board 170 seated on the bracket 180, and the second printed circuit board 170. A magnetic body (150) positioned at a position between the second printed circuit board (170) and the magnetic body (150) and a brush (160) for applying power to the first printed circuit board (132); The shaft 142 is inserted into the center of the bearing 141.

2 is an exploded perspective view illustrating only the coil 122, the first printed circuit board 131, and the rotor 121 according to the present invention. Referring to FIG. 2, the coil 122 uses a MEMS coil integrally formed on the first printed circuit board 131, and a Ni material is formed on one side of the first printed circuit board 131. Plated layer 132a is formed.

The weight body 122 includes a protrusion 122a protruding toward the first printed circuit board 131, and the first printed circuit board 131 includes a groove into which the protrusion is inserted.

1 is an exploded perspective view of the vibration motor,

Figure 2 is an exploded perspective view showing only the coil, the printed circuit board and the rotating body according to the present invention.

Claims (6)

In vibration motor, Bearings; A rotating body rotatably inserted into the center of the bearing; A weight body inserted into one side of the rotating body to generate vibration; And a coil inserted into the rotating body to form a magnetic field according to the applied power, and a first printed circuit board integrally formed with the coil to apply electric power to the coil. According to claim 1, wherein the vibration motor, Brackets; A second printed circuit board mounted on the bracket; A magnetic material positioned on the second printed circuit board; A brush positioned between the second printed circuit board and the magnetic material to apply power to the first printed circuit board; Vibration motor, characterized in that it further comprises a shaft inserted in the center of the bearing. According to claim 1, The coil is a vibration motor, characterized in that using the MEMS coil formed integrally with the first printed circuit board. The method of claim 3, Vibration motor, characterized in that the plated layer of Ni material is formed on one side of the first printed circuit board. According to claim 1, And the weight body includes a protrusion projecting toward the first printed circuit board. 6. The method of claim 5, The first printed circuit board is a vibration motor, characterized in that the protrusion includes a groove that can be inserted.
KR1020090099444A 2009-10-19 2009-10-19 Vibration motor KR20110042666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090099444A KR20110042666A (en) 2009-10-19 2009-10-19 Vibration motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090099444A KR20110042666A (en) 2009-10-19 2009-10-19 Vibration motor

Publications (1)

Publication Number Publication Date
KR20110042666A true KR20110042666A (en) 2011-04-27

Family

ID=44048040

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090099444A KR20110042666A (en) 2009-10-19 2009-10-19 Vibration motor

Country Status (1)

Country Link
KR (1) KR20110042666A (en)

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A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application