KR101111100B1 - A hi-end sound speaker unit for an earphone - Google Patents

Abstract

Realization of high-quality sound and low distortion of acoustic products that are difficult to reproduce in earphones of the present invention and development of high-quality vibration-integrated speaker units as vibration-sensitive products, reducing production costs and improving productivity, realizing high sound quality To provide a speaker. To this end, in the general earphone speaker, the increase and decrease of the current flowing in the coil in the magnetic field is transmitted to the vibration plate having an elastic force is configured to vibrate up and down by the spring effect. In addition, the up and down vibration of the vibration plate is configured to be transmitted to the vibration plate for generating high and low sound to generate sound waves. When the upper and lower vibration of the vibration plate to directly connect the portion of the vibration plate corresponding to the high band by using a connecting member such as iron wire to the vibration plate for generating a high sound so that the vibration is sufficiently transmitted. The speaker for earphones according to the present invention has an advantage of providing excellent sound quality, which is excellent in outputting both high and low sounds, since the high sound is sufficiently delivered and the distortion is reduced.

Description

Hi-Fi speaker unit for earphone {A HI-END SOUND SPEAKER UNIT FOR AN EARPHONE}

The present invention relates to a speaker unit that can be used, for example, for earphones, and more particularly, to a speaker unit for high sound quality using a new magnetic circuit structure to minimize distortion of sound quality and provide high quality sound.

Typically, small and lightweight sound-related equipment such as portable telephones or MP3 players have generally used earphones that can only listen to sound instead of loud speakers. In addition, recently, the earphone generates a voice signal and vibrates itself, thereby increasing the contact sensitivity of the earphone wearer.

These earphones use a speaker that applies the principle that the coil moves up and down by the electromagnetic field when current flows through the coil in the magnetic field by Fleming's left-hand law. That is, the coil vibrates due to the increase or decrease of the strength of the current flowing through the coil, and a method of transmitting the vibration of the coil to the diaphragm to convert it into a voice signal is adopted.

However, since the speaker for a conventional earphone is directly attached to the coil, the high-band is not sufficiently reproduced due to the weight of the coil, and the high sound is insufficient and the distortion (distortion) is severe, thereby increasing the fatigue of the earphone wearer.

Therefore, there is a need to provide a speaker for earphones capable of mass production at a low manufacturing cost while sufficiently delivering high sound and reducing distortion.

An object of the present invention is to realize a high-quality sound and low distortion acoustic product that is difficult to reproduce in the speaker for earphones and to develop a high-quality vibration integrated speaker unit as a vibration-like product, to reduce production costs, improve productivity, realize high sound quality, It is to develop and provide new magnetic circuit to supply low cost products.

In order to achieve the above object, the high-quality speaker unit according to the present invention is a general earphone speaker, and the increase and decrease of the current flowing in the coil in the magnetic field is directly transmitted to the vibrating plate having elastic force. Is configured to vibrate. In addition, the up and down vibration of the vibration plate is configured to be directly transmitted to the diaphragm to generate a voice signal. Here, the diaphragm for generating a voice signal is configured such that the middle and high sound generating diaphragm and the low sound generating diaphragm have a shape suitable for each voice frequency band, and each of these shapes may be assembled with or integrated with each other. In addition, the vibration plate is configured to directly connect the vibration plate and the vibration plate during the vibration up and down to sufficiently transmit the vibration. Here, in the configuration for directly transmitting the vibration of the vibration plate to the center of the high sound generating diaphragm (high sound generating diaphragm) of the diaphragm, a connecting member is used, such as an iron wire. In addition, one or more connection members may be used to sufficiently transmit the vibration of the voice signal to the diaphragm, and the shape of the connection member may be vertical, oblique, curved, spiral or other shapes. In addition, a variety of materials other than steel may be used for the material of the connection member to sufficiently transmit vibrations of a high quality frequency band.

The configuration of the speaker for earphones according to the present invention can be used by appropriately applying the configuration to the recent voice signal generation and haptic vibration generating earphones.

Since the speaker for earphones according to the present invention sufficiently transmits high treble and has a reduced distortion, there is an advantage of providing excellent sound quality in which both high and low trebles are excellently output.

1 is a view schematically showing a cross section of a vibrating speaker according to one preferred embodiment of the present invention.
FIG. 2 is an exploded view schematically illustrating components used in the speaker illustrated in FIG. 1.
3 is a front view of a vibration plate used in the speaker shown in FIG.
4 is a schematic cross-sectional view of a speaker according to another exemplary embodiment of the present invention.
FIG. 5 is an exploded view schematically illustrating components used in the speaker illustrated in FIG. 4.
6 is a front view of a vibration plate used in the speaker shown in FIG.

Hereinafter, the present invention will be described in detail with reference to the accompanying exemplary drawings.

1 to 3 schematically show a state in which a speaker unit according to one preferred embodiment of the present invention is applied to earphones.

As shown in Figures 1 to 3, the vibration-sensitive high-quality loudspeaker according to an embodiment of the present invention is mounted to the earphone, for example. In other words, it is a vibration-integrated high-quality speaker that is invented to be able to reproduce music with high sound quality as well as listening to music and bodily feeling by vibration.

Referring to FIG. 1, a coil 105 protrudes in an inner direction of the case 109 from the bottom of the case 109 and is disposed in a circumferential shape. The yoke 101 surrounds the coil 105 in a hat shape and is disposed above the coil 105 to form a space spaced vertically and horizontally from the coil 105. The inside of the yoke 101 having a hat shape is attached to the yoke 101 in the direction of the coil 105 and protrudes into the inner space of the coil 105 having a columnar shape to affect the coil 105. The magnet 102 is disposed. The plate 103 is disposed below the magnet 102.

The yoke 101 vibrates up and down under the force of Fleming's left-hand rule when the current flowing through the coil 105 increases or decreases under the influence of a magnetic field. At this time, in order to prevent the plate 103 from impacting the bottom of the case 109, a shock absorbing material 115 such as a nonwoven fabric may be attached to the case.

When the yoke 101 vibrates up and down, a vibration plate (vibration spring plate) 104 having an elasticity such as a spring plate is disposed around the yoke 101 so that the yoke 101 vibrates smoothly. . The vibrating plate 104 is fixed to the case 109.

On the yoke 101, a low sound generating diaphragm 106 and a high sound generating diaphragm 107 are disposed. The low sound generating diaphragm 106 and the high sound generating diaphragm 107 have a shape suitable for generating optimum sound in each sound wave band, and generally have a dome shape. The low sound generating diaphragm 106 and the high sound generating diaphragm 107 may be connected to each other to be integrally formed. In this embodiment, the treble generating diaphragm 107 is arranged in the center above the yoke 101 and the bass generating diaphragm 106 is arranged around the treble generating diaphragm 107. However, it may be arranged in various forms by those skilled in the art.

The low noise generating diaphragm 106 or the high sound generating diaphragm 107 is connected by the connecting member 108 so that the vibration of the yoke 101 is smoothly transmitted. One or more connecting members 108 may be used. In this embodiment, one connecting member 108 is shown connected to the center of the yoke 101 and the treble generating diaphragm 107. The connecting member 108 may generally be a steel core, but any material may be used in which the vibration of the yoke 101 may be sufficiently transmitted to the diaphragm.

A PCB 112 is disposed below the case 109. The case 109 surrounds and fixes the integral structure of the coil 105, the vibration plate 104, the high sound generating diaphragm 107, and the low sound generating diaphragm 106 and the cap 111.

Figure 2 is a development of each component of the vibration-sensitive high-quality speaker for earphone shown in Figure 1, showing how each component is assembled.

3 is a front view of a vibrating plate 104 that may be used in the embodiment of FIG. 1. Referring to FIG. 3, an opening is formed in the vibrating plate 104 to have a shape that can be fitted into the yoke 101. The vibration plate 104 has an elastic action such as a leaf spring so that the vibration of the yoke 101 can be made smoothly, and may be manufactured in various shapes such that the elastic action smoothly works.

4 to 6 schematically show a state in which a speaker unit according to another exemplary embodiment of the present invention is applied to earphones.

4 is an assembled cross-sectional view of a high-quality earphone speaker according to another embodiment of the present invention. Referring to FIG. 4, the PCB 211 is disposed at the lowermost end, the yoke 201 is disposed at the upper end thereof, the mark net 202 is disposed at the center of the upper end of the yoke 201, and the mark net ( The plate 203 is disposed on the top of the 202. The PCB 211, the yoke 201, the magnet 202, and the plate 203 have a through opening in the center, and are fitted into the I-LET 212 in the through opening and fixed to each other.

A fixing ring 213 is disposed at an edge of the yoke 201, and a vibration plate (vibration spring plate) 204 is disposed on the fixing ring 213 to be spaced apart from the yoke 201. As a result, a spaced space is formed between the yoke 201 and the vibration plate 204, and the vibration plate 204 protrudes in the vertical direction toward the yoke 201 and is horizontally spaced apart from the plate 203 and the magnet 202. Coil 205 is arranged.

On the vibration plate 204, the low noise generating diaphragm 206 and the high sound generating diaphragm 207 are arranged integrally. The center of the low noise generating diaphragm 207 and the center of the vibrating plate 204 are connected to the iron core 208 and transmitted to the low sound generating diaphragm 206 and the high sound generating diaphragm 207 having the vibration of the vibrating plate 204 integrally formed. do. The cap 210 is disposed on a spaced apart position on the low sound generating diaphragm 206 and the high sound generating diaphragm 207 integrally formed to protect the diaphragms 206 and 207. A case 209 is disposed at the edges of the cap 210, the integral structure of the diaphragms 206 and 207, the vibration plate 204, the fixing ring 213, and the yoke 201 to fix and protect the components.

FIG. 5 is an exploded view schematically illustrating components used in the speaker illustrated in FIG. 4. Referring to FIG. 5, the order of arrangement may be readily understood before assembling the components shown in FIG. 4. First, the I-LET 212 is disposed on the leftmost side, the yoke 201, the magnet 202, the plate 203, the fixing ring 213, the coil 205, the vibration plate 204, the case on the right side It can be seen that 209, iron core 208, unitary assembly of diaphragms 206 and 207, and cap 210 are disposed.

6 shows an example of a vibration plate 204 used in the speaker of FIG. 4 which is another embodiment of the present invention. The vibration plate 204 shown in FIG. 6 is filled in the center so as to be connected to the iron core 208 at the center, and has a structure that can be smoothly shaken around the center. Since the configuration shown in FIG. 6 is an embodiment of the present invention, it may have a modified structure that is connected to the iron core 208 at the center and that vibrations can be made smoothly.

101, 201: York
102, 202: Magnet
103,203: Plate
104, 204: Vibration Plate
105,205: coil
106, 206: bass generating diaphragm
107, 207: treble generating diaphragm
108, 208: connecting member
109, 209: case
111, 210: Cap
112, 211
115: nonwoven fabric

Claims (9)

A coil 105 protruding in an inner direction of the case 109 from a lower portion of the case 109 and arranged in a circumferential shape;
A yoke (101) surrounding the coil (105) in a hat shape and disposed above the coil (105) to form a space spaced vertically and horizontally from the coil (105);
Attached to the yoke 101 in the direction of the coil 105 in the yoke 101 having a hat shape, protrudes into the inner space of the coil 105 having a columnar shape to the coil 105. A magnet 102 influencing the magnetic field;
A vibration plate (vibration spring plate) disposed around the yoke 101 and smoothly vibrating the yoke 101 which is moved up and down by a force according to the increase and decrease of the current flowing through the coil 105 ( 104);
A bass generating diaphragm 106 disposed at a position spaced above the yoke 101;
A high sound generating diaphragm 107 disposed in parallel with the low sound generating diaphragm 106 and integrally formed with the low sound generating diaphragm 106;
The low sound generating diaphragm 106 or the high sound generating diaphragm 107 and the yoke 101 are connected, and the vibration of the yoke 101 is transmitted to the low sound generating diaphragm 106 or the high sound generating diaphragm 107. One or more connecting members 108;
A cap 111 disposed on the low sound generating diaphragm 106 and the high sound generating diaphragm 107 and protecting the low sound generating diaphragm 106 and the high sound generating diaphragm 107; And
It includes a PCB (PCB) 112 disposed on the outside of the lower portion of the case 109,
The case 109 is an integrated structure of the coil 105, the vibration plate 104, the high sound generating diaphragm 107 and the low sound generating diaphragm 106, and vibrations for earphones surrounding and fixing the cap 111. Experience high quality speaker unit. The method of claim 1,
The high tone generating diaphragm 107 is disposed in the center of the yoke 101, the low tone generating diaphragm 106 is disposed around the high tone generating diaphragm 107 High quality speaker unit. The method of claim 1,
The connecting member 108 is a vibration-sensing high-quality speaker unit for earphones, characterized in that consisting of a steel core. The method of claim 1,
The connection member (108) is a vibration-sensing high-quality speaker unit for earphones, characterized in that the center of the yoke 101 and the center of the high-sound generating diaphragm (107). PCB (211);
A yoke 201 disposed on an upper portion of the PCB 211;
A magnet 202 disposed at the top center of the yoke 201;
A plate 203 disposed on an upper end of the magnet 202;
The PCB 211, the yoke 201, the magnet 202, and the plate 203 have a through opening at a center thereof, and are fitted into the through opening to provide the PCB 211, the yoke 201, and the plate 203. An I-LET 212 fixing the magnet 202 and the plate 203 to each other;
A fixing ring 213 disposed at an edge of the yoke 201;
A vibration plate (vibration spring plate) 204 disposed on the fixing ring 213 and spaced apart from the yoke 201;
A coil 205 protruding from the vibration plate 204 in the vertical direction toward the yoke 201 and spaced horizontally from the plate 203 and the magnet 202 and attached to the vibration plate 204;
A low sound generating diaphragm 206 disposed spaced apart from the vibration plate 204;
A high sound generating diaphragm 207 disposed in parallel with the low sound generating diaphragm 206 and integrally formed with the low sound generating diaphragm 206;
The low sound generating diaphragm 206 or the high sound generating diaphragm 207 and the vibrating plate 204 are connected, and the vibration of the vibrating plate 204 is controlled by the low sound generating diaphragm 206 or the high sound generating diaphragm 207. One or more connecting members 208 for transmitting thereto;
A cap 210 disposed on the low noise generating diaphragm 206 and the high sound generating diaphragm 207 and protecting the low sound generating diaphragm 206 and the high sound generating diaphragm 207; And
An integrated structure of the cap 210, the low sound generating diaphragm 206, and the high sound generating diaphragm 207, the vibration plate 204, the fixing ring 213, and the yoke 201. An integrated structure of the cap 210, the low sound generating diaphragm 206 and the high sound generating diaphragm 207, and the vibration plate 204, the fixing ring 213 and the yoke 201 to protect and fix each other Case (209)
High quality speaker unit for earphones including. The method of claim 5, wherein
The high sound generating diaphragm 207 is disposed at the center of the vibration plate 204, the low sound generating diaphragm 206 is disposed around the high sound generating diaphragm 207 unit. The method of claim 5, wherein
The connection member 208 is a high-quality speaker unit for earphones, characterized in that consisting of a steel core. The method of claim 5, wherein
The connection member 208 is a high-quality speaker unit for earphones, characterized in that the center of the vibration plate 204 and the center of the high-frequency generating diaphragm (207). An earphone using the speaker unit according to any one of claims 1 to 8.

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