KR20030034302A - Speaker for generating both sound and vibration - Google Patents

Abstract

PURPOSE: A sound and vibration generation speaker is provided to prevent a noise from being generated when a vibration signal is generated at a lower frequency band by electrically dividing a sound generation part and a vibration generation part. CONSTITUTION: A speaker(100) has an outside frame(110). A sound generation part(130) and a vibration generation part(140) are installed in the outside frame(110). The sound generation part(130) has a vibration plate(131), a voice coil(135) and a sound magnet(137). The vibration generation part(140) has a yoke(141), a vibration coil(145) and a vibration magnet(147). Terminal plates(113,115) for supplying an external power to the voice coil(135) of the sound generation part(130) and the vibration coil(145) of the vibration generation part(140) are provided at one side of the outside frame(110). The sound generation part and the vibration generation part are electrically and structurally separated.

Description

Sound and vibration speaker {SPEAKER FOR GENERATING BOTH SOUND AND VIBRATION}

The present invention relates to a sound and vibration generating speaker that electrically and structurally separate the sound generating unit and the vibration generating unit.

In the conventional portable terminal, a buzzer for generating an incoming sound signal and a speaker for a call and a motor for generating an incoming vibration signal are separately provided, thereby increasing the volume and the cost.

In order to solve the above disadvantages, a speaker that simultaneously generates sound and vibration has been developed and used, which will be described with reference to FIG. 1.

As shown, a frame 10 fixed to the main body of the portable terminal is provided. The upper and lower leaf springs 21 and 25 having a predetermined distance are coupled to the inner circumferential surface of the frame 10, and the vibration generating unit 30 is provided to the upper and lower leaf springs 21 and 25. The vibration generator 30 has the upper and lower surfaces of the yoke 33 and the plate 31 and the yoke 33 supported by the plate 31 and the lower plate spring 25 respectively supported by the upper plate spring 21. It has an attached magnet 35.

In addition, an acoustic generator 40 having a diaphragm 41 and a voice coil 43 is provided at a portion of the upper frame 10 of the upper plate spring 21. At this time, the voice coil 43 is located in the air cap (A) portion between the plate 31 and the yoke 33. Reference numerals 51 and 55 are upper and lower covers, and 15 is a terminal plate connected to the voice coil 43.

The operation of the conventional sound and vibration generating speaker configured as described above will be described.

The sound generation is generated in the high frequency band, when external power is supplied to the voice coil 43 through the terminal plate 15, the magnetic field generated from the vibration generating unit 30 and the electric field generated from the voice coil 43 and Due to the electromagnetic force formed by the interaction of the boy coil 43 is vibrated up and down. Due to the vibration force, the vibration plate 41 integrally coupled with the voice coil 43 vibrates up and down to generate sound.

In addition, the vibration is generated in a low frequency band, the vibration generator 30 is vibrated up and down by the electromagnetic force formed in the vibration generator 30 and the voice coil 43, the vibration force is the vibration generator 30 It is transmitted to the outside through the frame 10 via the upper and lower leaf springs (21, 25) coupled to.

In the conventional sound and vibration generating speaker configured as described above, the diaphragm 41 of the sound generating unit 40 is coupled to the frame 10. Because of this, if the vibration force of the vibration generating unit 30 is transmitted to the frame 10, there is a disadvantage that the vibration plate 41 is generated by the vibration of the frame 10 while generating a sound. That is, in the low frequency band there is a disadvantage that the sound is not clear when the vibration occurs to act as noise

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 electrically and structurally separate the sound generating unit and the vibration generating unit so that the sound generating unit is not vibrated by the vibration generated in the vibration generating unit The present invention provides a sound and vibration generating speaker that does not generate noise when a vibration signal is generated in a low frequency band.

1 is a cross-sectional view showing the configuration of a conventional speaker.

Figure 2 is a cross-sectional view showing the configuration of a speaker according to a first embodiment of the present invention.

Figure 3a is a view showing the sound generating unit shown in FIG.

Figure 3b is a view showing the vibration generating portion shown in FIG.

Figure 4 is a cross-sectional view showing the configuration of a speaker according to a second embodiment of the present invention.

5 is a cross-sectional view showing the configuration of a speaker according to a third embodiment of the present invention;

6 is a cross-sectional view showing the configuration of a speaker according to a fourth embodiment of the present invention;

Explanation of symbols on the main parts of the drawings

110,210,310,410: outer frame 130,230,330,430: sound generator

140,240,340,440: vibration generating unit 150,250,350,450: upper cover

155,255,355,455: Lower cover

Sound and vibration generating speaker according to the present invention for achieving the above object,

A cylindrical outer frame installed inside the main body of the mobile communication terminal; An upper plate spring having a hollow portion and having an outer surface side disposed on an inner circumferential surface of the outer frame; A lower leaf spring provided in the same shape as the upper leaf spring and provided with an outer surface side on an inner circumferential surface of the outer frame below the upper leaf spring; A ring-shaped acoustic magnet in which an upper surface and a lower surface are respectively supported by the upper leaf spring and the lower leaf spring; An inner frame provided in a ring shape and having a support portion coupled to an upper surface and an upper leaf spring of the acoustic magnet and an extension portion extending outward from an outer surface of the support portion; The cap is located inside the support of the acoustic magnet and the inner frame and has a lower surface having a predetermined distance from the inner circumferential surface of the acoustic magnet and the inner circumferential surface of the support of the inner frame. And a yoke having an edge portion coupled to the lower plate spring; A diaphragm having an end portion coupled to the inner frame while having a protrusion positioned at a distance between the base portion of the inner frame and the cap portion of the yoke; A voice coil installed at the protrusion of the diaphragm; An upper cover coupled to the inner frame to cover the diaphragm; A cylindrical vibration magnet having an upper surface coupled to the cap portion while having a predetermined distance from an inner circumferential surface of the cap portion of the yoke; A pole piece coupled to the bottom surface of the vibrating magnet having a predetermined distance from an inner circumferential surface of the cap portion of the yoke; A lower cover coupled to a lower side of the outer frame and having a protrusion located at a distance between the cap of the yoke and the pole piece; A vibration coil installed at the protrusion of the lower cover; It is provided on the outside of the outer frame is provided with a terminal plate for supplying external power to the voice coil and the vibration coil, respectively.

In addition, the sound and vibration generating speaker according to the present invention for achieving the above object,

A cylindrical outer frame installed inside the main body of the mobile communication terminal; An upper leaf spring having a hollow portion and having an outer surface side installed on an inner circumferential surface of the outer frame; A lower leaf spring provided in the same shape as the upper leaf spring and provided with an outer surface side on an inner circumferential surface of the outer frame below the upper leaf spring; A ring-shaped vibration magnet having upper and lower surfaces respectively supported by the upper and lower leaf springs; A ring-shaped vibrating pole piece coupled to a bottom of the vibrating magnet; Located on the inner side of the vibrating magnet and the vibrating pole piece and the upper surface having a predetermined distance from the inner circumferential surface of the vibrating magnet and the inner circumferential surface of the vibrating pole piece is extended outward from the upper end of the cap and the upper end of the cap portion and the top and top of the vibrating magnet Yoke having an edge portion coupled to the side plate spring; A cylindrical acoustic magnet having a bottom surface coupled to the cap portion while having a predetermined distance from an inner circumferential surface of the cap portion of the yoke; An acoustic pole piece coupled to an upper surface of the acoustic magnet while having a predetermined distance from an inner circumferential surface of the cap portion of the yoke; A diaphragm having an end portion coupled to an edge portion of the yoke while having a protrusion positioned at an interval between the cap portion of the yoke and the pole piece; A voice coil installed at the protrusion of the diaphragm; An upper cover coupled to an edge of the yoke in a form covering the diaphragm; A lower cover coupled to a lower side of the outer frame and having a protrusion positioned at an interval between the cap of the yoke and the vibrating pole piece; A vibration coil installed at the protrusion of the lower cover; It is provided on the outside of the outer frame is provided with a terminal plate for supplying external power to the voice coil and the vibration coil, respectively.

In addition, the sound and vibration generating speaker according to the present invention for achieving the above object,

A cylindrical outer frame installed inside the main body of the mobile communication terminal; An upper plate spring having a hollow portion and having an outer surface side disposed on an inner circumferential surface of the outer frame; A lower leaf spring provided in the same shape as the upper leaf spring and having a hollow portion smaller than the hollow portion of the upper leaf spring and having an outer surface side on an inner circumferential surface of the outer frame below the upper leaf spring; An outer yoke provided in a ring shape and having a support portion supported on an inner surface side of the lower plate spring and a coupling portion extending upward from an outer circumferential surface of the support portion to be coupled to an inner surface side of the upper plate spring; A shared magnet provided in a ring shape and having a bottom surface coupled to a base of the outer yoke and having a predetermined distance from an inner circumferential surface of the base of the outer yoke; A body having a predetermined distance from an inner circumferential surface of the supporting portion of the outer yoke and the sharing magnet and extending outward from an upper end surface of the body to be coupled to an upper surface of the sharing magnet and having an end portion thereof; The inner yoke including an edge portion having a predetermined interval with the inner peripheral surface of the engaging portion of the outer yoke; An inner frame provided in a ring shape and having a horizontal portion whose inner surface side is coupled to an upper end portion of the coupling portion of the outer yoke and a vertical portion extending upward from an outer surface of the horizontal portion; A diaphragm coupled to the inner frame while having a protrusion positioned at an interval between the coupling portion of the outer yoke and the edge of the inner yoke; A voice coil installed at the protrusion of the diaphragm; An upper cover coupled to an edge of the yoke in a form covering the diaphragm; A lower cover coupled to a lower side of the outer frame and having a protrusion positioned at an interval between the base of the outer yoke and the body of the inner yoke; A vibration coil installed at the protrusion of the lower cover; It is provided on the outside of the outer frame is provided with a terminal plate for supplying external power to the voice coil and the vibration coil, respectively.

In addition, the sound and vibration generating speaker according to the present invention for achieving the above object,

A cylindrical outer frame installed inside the main body of the mobile communication terminal; An upper plate spring having a hollow portion and having an outer surface side disposed on an inner circumferential surface of the outer frame; A lower leaf spring provided in the same shape as the upper leaf spring and having a larger hollow portion than the hollow portion of the upper leaf spring, and having an outer surface on an inner circumferential surface of the outer frame below the upper leaf spring; An outer yoke provided in a ring shape and having a support portion supported on an inner surface side of the upper leaf spring and a coupling portion extending downward from an outer circumferential surface of the support portion to engage with an inner surface side of the lower leaf spring; A sharing magnet provided in a ring shape and having an upper surface coupled to the supporting portion of the outer yoke and having a predetermined distance from an inner circumferential surface of the supporting portion of the outer yoke; A body having a predetermined distance from an inner circumferential surface of the supporting portion of the outer yoke and the inner side of the sharing magnet and extending outward from a lower surface of the body to be coupled to a bottom surface of the sharing magnet and having an end portion thereof; The inner yoke including an edge portion having a predetermined interval with the inner peripheral surface of the engaging portion of the outer yoke; An inner frame provided in a ring shape and having a horizontal portion coupled to the supporting portion of the outer yoke and an extension extending outwardly of the horizontal portion; A diaphragm coupled to the inner frame while having a protrusion located at a distance between the base of the outer yoke and the body of the inner yoke; A voice coil installed at the protrusion of the diaphragm; An upper cover coupled to an edge of the yoke in a form covering the diaphragm; A lower cover coupled to a lower side of the outer frame and having a protrusion positioned at an interval between a coupling portion of the outer yoke and an edge of the inner yoke; A vibration coil installed at the protrusion of the lower cover; It is provided on the outside of the outer frame is provided with a terminal plate for supplying external power to the voice coil and the vibration coil, respectively.

Hereinafter, a sound and vibration generating speaker according to preferred embodiments of the present invention with reference to the accompanying drawings.

Example 1

2 is a cross-sectional view showing the configuration of a speaker according to a first embodiment of the present invention, Figure 3a is a view showing a sound generating unit shown in Figure 2, Figure 3b is a view showing a vibration generating unit shown in FIG.

As shown, the speaker 100 according to the first embodiment has a cylindrical outer frame 110 which is installed inside the main body (not shown) of the mobile communication terminal. The sound generating unit 130 having the diaphragm 131, the voice coil 135, and the acoustic magnet 137 and the yoke 141, the vibration coil 145, and the vibration magnet 147 are disposed inside the outer frame 110. The vibration generating unit 140 is installed. In addition, terminal plates 113 and 115 for supplying external power to the voice coil 135 and the vibration coil 145 of the sound generator 130 and the vibration generator 140 are provided at one side of the outer surface of the outer frame 110, respectively. do.

On the inner circumferential surface of the outer frame 110, an upper plate spring 121 and a lower plate spring 125 having a predetermined distance therebetween are installed, and the upper and lower plate springs 121 and 125 each have a disc-shaped body 121a, which has a hollow portion. It extends from the outer peripheral surface of 125a) and each body 121a, 125a, and has the arm part 121b, 125b formed in multiple numbers at equal intervals along the outer peripheral surface of each body 121a, 125a. The fixed ends of the arms 121b and 125b are integrally formed with the bodies 121a and 125a, and the free ends of the arms 121b and 125b are fixed to the inner circumferential surface of the outer frame 110 to form a cantilevered shape. .

A ring-shaped acoustic magnet 137 is provided on the bottom surface and the lower plate spring 125 of the upper plate spring 121, and the inner frame 160 on the upper surface and the upper plate spring 121 of the acoustic magnet 137. Is combined. In detail, the inner frame 160 includes a ring-shaped support portion 161 coupled to the upper surface and the upper leaf spring 121 of the acoustic magnet 137 and an extension portion extended from the outer end of the support portion 161 ( 163). The extension part 163 may include a first vertical part 163a extending vertically at the end of the supporting part 161 and a first horizontal part 163b and a first extending outward at the end of the first vertical part 163a. It has a second vertical portion 163c extending vertically at the end of the horizontal portion 163b.

The yoke 141 is coupled to the lower plate spring 125 and the acoustic magnet 137. The yoke 141 extends outward from the lower end of the cap part 142 and the cap part 142 having a predetermined distance from the inner circumferential surface of the acoustic magnet 137 and the inner circumferential surface of the support part 161 of the inner frame 160. And an edge portion 143 coupled to the bottom surface and the lower plate spring 125 of the acoustic magnet 137. In addition, the upper cover 150 is coupled to the extension part 163 of the inner frame 160 to cover the diaphragm 131.

An end portion of the diaphragm 131 is coupled to the first horizontal portion 163b of the inner frame 160, and one side of the central portion of the diaphragm 131 includes a support part 161 of the inner frame 160 and the yoke 141. It has the protrusion 131a located in the space | interval between the cap parts 142. As shown in FIG. The voice coil 135 is installed at the protrusion 131a of the diaphragm 131, and the voice coil 135 is connected to the terminal plate 113. Thus, when a current having a frequency greater than or equal to a predetermined value is supplied from the terminal plate 113 to the voice coil 135, the magnetic field generated by the acoustic magnet 137 interacts with the electric field generated around the voice coil 135. The voice coil 135 is vibrated up and down by the electromagnetic force generated by the. Then, the vibration plate 131 integrally coupled with the voice coil 135 vibrates up and down to generate sound.

The cap 142 of the yoke 141 is provided with a cylindrical vibrating magnet 147 having an upper surface coupled to the cap 142 while having a predetermined distance from the inner circumferential surface of the cap 142, and is provided on the bottom of the vibrating magnet 147. The pole piece 149 having a predetermined distance from the inner circumferential surface of the cap 142 of the yoke 141 is coupled. In addition, a lower cover 155 having a protrusion 155a positioned at an interval between the cap 142 of the yoke 141 and the pole piece 149 is coupled to the lower side of the outer frame 110. The vibration coil 145 is installed at the protrusion 155a of the lower cover 155, and the vibration coil 145 is connected to the terminal plate 115.

Thus, when a current having a frequency less than or equal to a predetermined value is supplied from the terminal plate 115 to the vibration coil 145, it is generated by the interaction between the magnetic field of the vibration magnet 147 and the electric field formed around the vibration coil 145. The yoke 141 vibrates up and down by the electromagnetic force, the vibration force of the yoke 141 is transmitted to the outer frame 110 through the upper and lower plate springs 121 and 125, and the vibration force of the outer frame 110. Is passed out. Thus, vibration as an incoming signal is generated.

In the speaker 100 according to the first embodiment, the vibration force of the sound generator 130 and the vibration force of the vibration generator 140 do not cause mutual interference. In detail, even when the diaphragm 131 vibrates due to the vibration of the voice coil 135 of the acoustic generator 130, the vibration force of the diaphragm 131 is due to the nature of the material of the diaphragm 131. Hardly passed on. Therefore, even if the sound generator 130 vibrates, the vibration generator 140 does not vibrate.

In addition, the vibration force of the yoke 141 of the vibration generating unit 140 is transmitted to the inner frame 160 through the acoustic magnet 137. Then, the diaphragm 131 installed on the inner frame 160 and the inner frame 160 vibrates up and down in the same manner. That is, the diaphragm 131 vibrates up and down as a whole while maintaining its shape, but the diaphragm 131 itself does not vibrate. Therefore, when a vibration signal as an incoming signal is generated, no sound signal is generated from the sound generator 130.

Example 2

4 is a cross-sectional view showing the configuration of a speaker according to a second embodiment of the present invention, and only the differences from the first embodiment will be described.

As shown, the outer frame 210, the terminal plates (213, 215), the upper and lower leaf springs (221, 225) of the speaker 200 according to the second embodiment is the same as the configuration of the speaker 100 according to the first embodiment Do.

Upper and lower surfaces of the ring-shaped vibration magnets 247 are coupled to the upper and lower leaf springs 221 and 225, respectively. In addition, a vibration pole piece 249 having a shape corresponding to the vibration magnet 247 is coupled to the bottom of the vibration magnet 247.

The yoke 241 of the vibration generating unit 240 is located inside the vibration magnet 247 and the vibration pole piece 249 and has a predetermined distance from the inner circumferential surface of the vibration magnet 247 and the inner circumferential surface of the vibration pole piece 249. An upper surface has an open cap portion 242 and an edge portion 243 extending outward from an upper end of the cap portion 242 to be coupled to the upper surface and the upper plate spring 221 of the vibrating magnet 247. The edge portion 243 of the yoke 241 extends outward from the outer surface of the cap portion 241 to be coupled to the vibrating magnet 247 and the upper plate spring 221 and the first horizontal portion 243a and the first horizontal portion ( The first vertical portion 243b extending upward from the end of 243a and the upper portion at the ends of the second horizontal portion 243c and the second horizontal portion 243c extending outward from the ends of the first vertical portion 243b. It has a second vertical portion 243d extending inwardly.

In addition, the cap 242 of the yoke 241 is provided with a cylindrical acoustic magnet 237 having a bottom surface coupled to the cap 242 while having a predetermined distance from the inner circumferential surface of the cap 242. The acoustic pole piece 239 is coupled to the upper surface. The acoustic pole piece 239 also has a predetermined distance from the inner circumferential surface of the cap portion 242 of the yoke 241.

An end portion of the diaphragm 231 is coupled to the second horizontal portion 243c of the edge portion 243 of the yoke 241, and a cap 242 and an acoustic pole piece of the yoke 241 are connected to one side of the central portion of the diaphragm 231. Protrusions 231a are formed that are located at intervals between the 239. The voice coil 235 connected to the terminal plate 213 is provided at the protrusion 231a. In addition, the upper cover 250 is coupled to the second horizontal portion 243c of the edge portion 243 of the yoke 241 to cover the diaphragm 231.

A lower cover 255 having a protrusion 255a positioned at an interval between the cap 242 of the yoke 241 and the vibration pole piece 249 is coupled to the lower side of the outer frame 210. A vibration coil 245 connected to the terminal plate 215 is installed at the protrusion 255a of the lower cover 255.

The operation of the speaker 200 according to the second embodiment is the same as the operation of the speaker 100 according to the first embodiment.

Like the speaker 100 according to the first exemplary embodiment, the speaker 200 according to the second exemplary embodiment may have a vibration force of the diaphragm 231 due to the characteristics of the material of the diaphragm 231 of the acoustic generator 230. Rarely delivered. Therefore, even if the sound generator 230 vibrates, the vibration generator 240 does not vibrate.

In addition, even when the yoke 241 of the vibration generator 240 vibrates up and down, the diaphragm 231 itself provided inside the yoke 241 does not vibrate at all. Therefore, when a vibration signal as an incoming signal is generated, no sound signal is generated from the sound generator 230.

Example 3

5 is a cross-sectional view showing the configuration of a speaker according to a third embodiment of the present invention.

As shown, the outer frame 310, the terminal plate (313, 315) of the speaker 300 according to the third embodiment is the same as the configuration of the speaker 100 according to the first embodiment. The upper and lower leaf springs 321 and 325 of the speaker 300 according to the third embodiment are substantially the same as the speaker 100 according to the first embodiment, but the hollow portion of the upper leaf spring 321 has a lower leaf spring ( 325 is provided larger than the hollow portion.

The outer yoke 360 is installed at the upper leaf spring 321 and the lower leaf spring 325. The outer yoke 360 is formed in a ring shape and extends upward from an outer circumferential surface of the support part 361 and the support part 361 supported on the inner surface side of the lower plate spring 325 and the inner surface side of the upper plate spring 321. It has a coupling portion 363 to be coupled. The outer side of the coupling portion 363 is formed with a coupling frame 363a to which the inner surface side of the upper plate spring is supported.

The bottom surface of the ring-shaped shared magnet 365 is coupled to the support portion 361 of the outer yoke 360, and the inner circumferential surface of the support portion 361 and the outer circumferential surface of the shared magnet 365 have a predetermined interval.

An inner yoke 341 is provided inside the support part 361 and the sharing magnet 365 of the outer yoke 360. In detail, the inner yoke 341 is positioned inside the support part 361 and the sharing magnet 365 of the outer yoke 360 so as to be spaced apart from the inner circumferential surface of the support part 361 and the inner circumferential surface of the sharing magnet 365. It has a body 341a having an edge and an edge portion 341b extending outward from the top surface of the body 341a to be coupled to the top surface of the shared magnet 365. An end portion of the edge portion 341b has a predetermined distance from the inner circumferential surface of the engaging portion 363 of the outer yoke 360.

The inner frame 370 is coupled to the outer yoke 360. In detail, the inner frame 370 has a ring shape and a vertical portion extending upward from an outer surface of the horizontal portion 371 and the horizontal portion 371 that are coupled to the upper end of the coupling portion 363 of the outer yoke 360. Has (372). In addition, a coupling pipe 371a is formed at one side of the bottom surface of the horizontal portion 371 to be coupled to the upper surface and the upper surface of the coupling portion 363 of the outer yoke 360. At this time, the lower end of the coupling pipe 371a is in contact with the upper plate spring 321.

The diaphragm 331 is coupled to the horizontal portion 371 of the inner frame 370, and an edge portion 341b of the coupling portion 361 of the outer yoke 360 and the inner yoke 341 is connected to one side of the central portion of the diaphragm 331. Protruding portion 331a is formed at the interval between the (). And the voice coil 335 connected with the terminal board 313 is provided in the protrusion part 331a. In addition, the upper cover 350 is coupled to the vertical portion 372 of the inner frame 370 to cover the diaphragm 331.

The lower cover 355 is coupled to the lower side of the outer frame, and the lower cover 355 is located at an interval between the inner circumferential surface of the base 361 of the outer yoke 360 and the body 341a of the inner yoke 341. A protrusion 355a is formed. The protrusion 355a is provided with a vibration coil 345 connected to the terminal plate 315.

Thus, when a current of a predetermined frequency or more is supplied to the voice coil 335 through the terminal plate 313, the diaphragm 331 vibrates to generate an acoustic signal. In addition, when a current of a predetermined frequency or less is supplied to the vibration coil 345 through the terminal plate 315, the inner yoke 341 vibrates and the vibration force of the inner yoke 341 causes the upper and lower leaf springs 321 and 325 to move. It is transmitted to the outer frame 310 to generate a vibration signal.

In the speaker 300 according to the third embodiment, the vibration force of the sound generator 330 and the vibration force of the vibration generator 340 interfere with each other, similarly to the speakers 100 and 200 according to the first and second embodiments. I never do that.

The vibration force of the diaphragm 331 of the sound generating unit 330 is not transmitted to the inner frame 370 at all due to the properties of the material. The vibration force of the inner yoke 341 of the vibration generating unit 340 is transmitted to the inner frame 370 through the sharing magnet 365 and the outer yoke 360. However, as in the inner frame 370, the entire vibration plate 331 vibrates up and down, but the vibration plate 331 itself does not vibrate at all. This is the same as in the first and second embodiments.

Example 4

6 is a cross-sectional view showing the configuration of a speaker according to a fourth embodiment of the present invention.

As shown, the outer frame 410, the terminal plate (413, 415) of the speaker 400 according to the fourth embodiment is the same as the configuration of the speaker 300 according to the third embodiment. The upper and lower leaf springs 421 and 425 of the speaker 400 according to the fourth embodiment are substantially the same as the speaker 100 according to the third embodiment, but the hollow portion of the upper leaf spring 421 has a lower leaf spring ( It is provided smaller than the hollow portion of 425.

An outer yoke 460 is installed at the upper leaf spring 421 and the lower leaf spring 425. The outer yoke 460 is formed in a ring shape and extends downward from the outer circumferential surface of the supporting portion 461 and the supporting portion 461 supported on the inner surface side of the upper leaf spring 421 and the inner surface side of the lower leaf spring 425. It has a coupling part 463 to be coupled. The outer side of the coupling portion 463 is formed with a coupling frame 463a to which the inner surface side of the upper plate spring is supported and coupled.

The upper surface of the ring-shaped shared magnet 465 is coupled to the support portion 461 of the outer yoke 460, and the inner circumferential surface of the support portion 461 and the outer circumferential surface of the shared magnet 465 have a predetermined interval.

An inner yoke 441 is provided inside the support part 461 of the outer yoke 460 and the sharing magnet 465. In detail, the inner yoke 441 is positioned inside the supporting portion 461 and the sharing magnet 465 of the outer yoke 460 to be spaced apart from the inner circumferential surface of the supporting portion 461 and the inner circumferential surface of the sharing magnet 465. It has a body 441a having an edge and an edge portion 441b extending outward from the bottom surface of the body 41a and coupled to the bottom surface of the shared magnet 465. An end portion of the edge portion 441b has a predetermined distance from the inner circumferential surface of the engaging portion 463 of the outer yoke 60.

The lower cover 455 is coupled to the lower side of the outer frame 410, and the lower cover 455 is disposed between the inner circumferential surface of the engaging portion 463 of the outer yoke 460 and the edge portion 341b of the inner yoke 341. Protruding portions 455a are formed at intervals. The protrusion 455a is provided with a vibration coil 445 connected to the terminal plate 15.

The inner frame 470 is coupled to the outer yoke 460. In detail, the inner frame 470 has a ring-shaped horizontal portion 471 coupled to the support portion 461 of the outer yoke 460 and an extension portion 473 extending from the outer surface of the horizontal portion 471. . The extension part 473 includes the first vertical part 473a extending vertically from the outer surface of the horizontal part 471 and the first horizontal part 473b and the first horizontal part extending outwardly from the ends of the first vertical part 473a. It has a second vertical portion 473c extending vertically at the end of the horizontal portion 473b.

An end portion of the diaphragm 431 is coupled to the first horizontal portion 473b of the inner frame 470, and a base 461 and an inner yoke 441 of the outer yoke 460 are connected to one side of the central portion of the diaphragm 431. Protrusions 431a are formed at intervals between the bodies 441a. The voice coil 435 connected to the terminal plate 413 is provided at the protrusion 431a. In addition, the upper cover 450 is coupled to the second vertical portion 473c of the inner frame 470 to cover the diaphragm 431.

Similar to the speaker 300 according to the third embodiment, the speaker 400 according to the fourth embodiment has a vibration force of the diaphragm 431 due to the characteristics of the material of the diaphragm 431 of the sound generator 430. 470). Therefore, even when the sound generator 430 vibrates, the vibration generator 440 does not vibrate.

In addition, even when the inner yoke 441 of the vibration generating unit 440 vibrates up and down, the diaphragm 431 itself installed inside the inner frame 470 does not vibrate at all. Therefore, when a vibration signal as an incoming signal is generated, no sound signal is generated from the sound generator 430.

As described above, in the sound and vibration generating speaker according to the present invention, the sound generating unit and the vibration generating unit are electrically and structurally separated. Therefore, since the sound generator does not vibrate at all even when the vibration generator vibrates, no noise is generated when the vibration signal is generated in the low frequency band, and the vibration generator does not operate at all even when the sound generator is operated. When it occurs, no vibration force is generated.

In the above, the present invention has been described in accordance with an embodiment of the present invention, but the present invention is capable of various modifications, changes, additions, and the like within the scope of the present invention defined by the claims. It is obvious to those skilled in the art.

Claims (8)

A cylindrical outer frame installed inside the main body of the mobile communication terminal; An upper plate spring having a hollow portion and having an outer surface side disposed on an inner circumferential surface of the outer frame; A lower leaf spring provided in the same shape as the upper leaf spring and provided with an outer surface side on an inner circumferential surface of the outer frame below the upper leaf spring; A ring-shaped acoustic magnet in which an upper surface and a lower surface are respectively supported by the upper leaf spring and the lower leaf spring; An inner frame provided in a ring shape and having a support portion coupled to an upper surface and an upper leaf spring of the acoustic magnet and an extension portion extending outward from an outer surface of the support portion; The cap is located inside the support of the acoustic magnet and the inner frame and has a lower surface having a predetermined distance from the inner circumferential surface of the acoustic magnet and the inner circumferential surface of the support of the inner frame. And a yoke having an edge portion coupled to the lower plate spring; A diaphragm having an end portion coupled to the inner frame while having a protrusion positioned at a distance between the base portion of the inner frame and the cap portion of the yoke; A voice coil installed at the protrusion of the diaphragm; An upper cover coupled to the inner frame to cover the diaphragm; A cylindrical vibration magnet having an upper surface coupled to the cap portion while having a predetermined distance from an inner circumferential surface of the cap portion of the yoke; A pole piece coupled to the bottom surface of the vibrating magnet having a predetermined distance from an inner circumferential surface of the cap portion of the yoke; A lower cover coupled to a lower side of the outer frame and having a protrusion located at a distance between the cap of the yoke and the pole piece; A vibration coil installed at the protrusion of the lower cover; Sound and vibration generating speaker provided on the outer side of the outer frame having a terminal plate for supplying external power to the voice coil and the vibration coil, respectively. The method of claim 1, The extension part of the inner frame is a first vertical part extending vertically from the outer surface of the supporting part, a first horizontal part extending outwardly from the end of the first vertical part and a second vertical part extending vertically from the end of the first horizontal part. Have wealth, The diaphragm and the upper cover is a sound and vibration generating speaker, characterized in that coupled to the first horizontal portion. A cylindrical outer frame installed inside the main body of the mobile communication terminal; An upper leaf spring having a hollow portion and having an outer surface side installed on an inner circumferential surface of the outer frame; A lower leaf spring provided in the same shape as the upper leaf spring and provided with an outer surface side on an inner circumferential surface of the outer frame below the upper leaf spring; A ring-shaped vibration magnet having upper and lower surfaces respectively supported by the upper and lower leaf springs; A ring-shaped vibrating pole piece coupled to a bottom of the vibrating magnet; Located on the inner side of the vibrating magnet and the vibrating pole piece and the upper surface having a predetermined distance from the inner circumferential surface of the vibrating magnet and the inner circumferential surface of the vibrating pole piece is extended outward from the upper end of the cap and the upper end of the cap portion and the top and top of the vibrating magnet Yoke having an edge portion coupled to the side plate spring; A cylindrical acoustic magnet having a bottom surface coupled to the cap portion while having a predetermined distance from an inner circumferential surface of the cap portion of the yoke; An acoustic pole piece coupled to an upper surface of the acoustic magnet while having a predetermined distance from an inner circumferential surface of the cap portion of the yoke; A diaphragm having an end portion coupled to an edge portion of the yoke while having a protrusion positioned at an interval between the cap portion of the yoke and the pole piece; A voice coil installed at the protrusion of the diaphragm; An upper cover coupled to an edge of the yoke in a form covering the diaphragm; A lower cover coupled to a lower side of the outer frame and having a protrusion positioned at an interval between the cap of the yoke and the vibrating pole piece; A vibration coil installed at the protrusion of the lower cover; Sound and vibration generating speaker provided on the outer side of the outer frame having a terminal plate for supplying external power to the voice coil and the vibration coil, respectively. The method of claim 3, wherein The edge portion of the yoke includes a first horizontal portion extending outwardly from an end of the cap portion, a first vertical portion extending upwardly from an end portion of the first horizontal portion, and a second horizontal portion extending outwardly from an end portion of the first vertical portion. And a second vertical portion extending upward from an end of the second horizontal portion, The first horizontal portion is coupled to the vibration magnet and the upper plate spring, the vibration plate and the upper cover is acoustic and vibration generating speaker, characterized in that coupled to the second horizontal portion. A cylindrical outer frame installed inside the main body of the mobile communication terminal; An upper plate spring having a hollow portion and having an outer surface side disposed on an inner circumferential surface of the outer frame; A lower leaf spring provided in the same shape as the upper leaf spring and having a hollow portion smaller than the hollow portion of the upper leaf spring and having an outer surface side on an inner circumferential surface of the outer frame below the upper leaf spring; An outer yoke provided in a ring shape and having a support portion supported on an inner surface side of the lower plate spring and an engaging portion extending upward from an outer circumferential surface of the support portion to be coupled to an inner surface side of the upper plate spring; A shared magnet provided in a ring shape and having a bottom surface coupled to a base of the outer yoke and having a predetermined distance from an inner circumferential surface of the base of the outer yoke; A body having a predetermined distance from an inner circumferential surface of the supporting portion of the outer yoke and the sharing magnet and extending outward from an upper end surface of the body to be coupled to an upper surface of the sharing magnet and having an end portion thereof; The inner yoke including an edge portion having a predetermined interval with the inner peripheral surface of the engaging portion of the outer yoke; An inner frame provided in a ring shape and having a horizontal portion whose inner surface side is coupled to an upper end portion of the coupling portion of the outer yoke and a vertical portion extending upward from an outer surface of the horizontal portion; A diaphragm coupled to the inner frame while having a protrusion positioned at an interval between the coupling portion of the outer yoke and the edge of the inner yoke; A voice coil installed at the protrusion of the diaphragm; An upper cover coupled to an edge of the yoke in a form covering the diaphragm; A lower cover coupled to a lower side of the outer frame and having a protrusion positioned at an interval between the base of the outer yoke and the body of the inner yoke; A vibration coil installed at the protrusion of the lower cover; Sound and vibration generating speaker provided on the outer side of the outer frame having a terminal plate for supplying external power to the voice coil and the vibration coil, respectively. The method of claim 5, On one side of the outer surface of the coupling portion of the outer yoke is formed a coupling frame is coupled to the inner surface side of the upper plate spring, Sound and vibration generating speaker, characterized in that the coupling side is in contact with the upper surface and the upper plate spring at the same time coupled to the upper surface and the upper outer surface of the coupling portion of the inner side of the horizontal portion of the inner frame. A cylindrical outer frame installed inside the main body of the mobile communication terminal; An upper plate spring having a hollow portion and having an outer surface side disposed on an inner circumferential surface of the outer frame; A lower leaf spring provided in the same shape as the upper leaf spring and having a larger hollow portion than the hollow portion of the upper leaf spring, and having an outer surface on an inner circumferential surface of the outer frame below the upper leaf spring; An outer yoke provided in a ring shape and having a support portion supported on an inner surface side of the upper leaf spring and a coupling portion extending downward from an outer circumferential surface of the support portion to engage with an inner surface side of the lower leaf spring; A sharing magnet provided in a ring shape and having an upper surface coupled to the supporting portion of the outer yoke and having a predetermined distance from an inner circumferential surface of the supporting portion of the outer yoke; A body having a predetermined distance from an inner circumferential surface of the supporting portion of the outer yoke and the inner side of the sharing magnet and extending outward from a lower surface of the body to be coupled to a bottom surface of the sharing magnet and having an end portion thereof; The inner yoke including an edge portion having a predetermined interval with the inner peripheral surface of the engaging portion of the outer yoke; An inner frame provided in a ring shape and having a horizontal portion coupled to the supporting portion of the outer yoke and an extension extending outwardly of the horizontal portion; A diaphragm coupled to the inner frame while having a protrusion positioned at a distance between the base of the outer yoke and the body of the inner yoke; A voice coil installed at the protrusion of the diaphragm; An upper cover coupled to an edge of the yoke in a form covering the diaphragm; A lower cover coupled to a lower side of the outer frame and having a protrusion positioned at an interval between a coupling portion of the outer yoke and an edge of the inner yoke; A vibration coil installed at the protrusion of the lower cover; Sound and vibration generating speaker provided on the outer side of the outer frame having a terminal plate for supplying external power to the voice coil and the vibration coil, respectively. The method of claim 7, wherein Sound and vibration generating speaker, characterized in that the coupling frame is coupled to the inner surface side of the lower plate spring is coupled to one side of the outer surface of the outer yoke.