WO2018038516A1 - Integrated two-way speaker using dynamic speaker - Google Patents

Abstract

Disclosed is an integrated two-way speaker using a dynamic speaker. The integrated two-way speaker using a dynamic speaker, according to the present invention, comprises: a hollow frame; a magnetic field generating member disposed inside the frame, and having an external magnetic field unit for generating a low-frequency sound and an internal magnetic field unit, which is opened in a direction opposite to the external magnetic field unit, for generating a high-frequency sound; a low-frequency sound diaphragm which is installed to comprise a voice coil for a low-frequency sound on the entrance side of one side of the frame facing the external magnetic field unit; and a high-frequency sound diaphragm having a through hole formed at a center thereof and comprising a voice coil for a high-frequency sound on the entrance side of the other side of the frame. In the external magnetic field unit of the magnetic field generating member, one or more low-frequency sound discharge passages are formed in a penetrating manner, through which the low-frequency sound generated at the low-frequency sound diaphragm passes toward the through hole. Between the magnetic field generating member and the high-frequency sound diaphragm, a hollow low-frequency sound nozzle frame is disposed for guiding a low-frequency sound discharged to the low-frequency sound discharge passages toward the through hole formed at the center of the high-frequency sound diaphragm such that the low-frequency sound is discharged in a straight manner from the center of the high-frequency sound diaphragm, wherein the low-frequency sound nozzle frame has one end which is in contact with the magnetic field generating member and the other end which is located in the through hole. The present invention can provide an effect of providing a two-way speaker capable of simultaneously generating a high-frequency sound and a low-frequency sound by integrally forming a dynamic speaker for generating a low-frequency sound and a dynamic speaker for generating a high-frequency sound.

Description

All-in-one 2-way speaker with dynamic speakers

The present invention relates to an integrated two-way speaker using a dynamic speaker. More specifically, the woofer side sound source is disposed in front of the tweeter diaphragm and the woofer side sound source is discharged through a woofer nozzle hole provided in the center of the tweeter diaphragm. The present invention relates to an integrated two-way speaker using a dynamic speaker that can be discharged with a straightness at the center of the speaker and thus increase the intelligibility of the sound source.

In general, a speaker is an acoustic device that converts an electric signal into vibration of a diaphragm to generate a small wave in the air to radiate sound waves, and according to the principle and method of converting an electric signal into sound waves, dynamic, electromagnetic, electrostatic, dielectric, Magnetic distortion.

Dynamic type with good performance is widely used for music reproduction and voice. The dynamic type uses the principle that when a voice signal current flows through the voice coil in the magnetic field of the permanent magnet, the mechanical force acts on the voice coil according to the strength of the current, causing movement.

However, this dynamic type is suitable for implementing low frequencies, but has a disadvantage of being relatively weak in implementing high frequencies, and thus has a limitation in providing high sound quality. In order to compensate for this, a two-way speaker or a three-way speaker has been proposed.

As an example of such a two-way speaker, Korean Patent No. 10-1515815 (Date: 2015.05.06) discloses a speaker using a dynamic speaker and a piezoelectric element. As shown in FIG. 1, a speaker using a dynamic speaker and a piezoelectric element includes a yoke 10 having an accommodating space therein, a magnet 20 disposed in the accommodating space, and a plate 22 disposed on an upper surface thereof. And a circuit board 50 coupled to the lower outer side of the yoke 10, and a rivet 26 coupling and fixing the magnet 20, the plate 22, and the circuit board 50 to the yoke 10. The rivet hole is formed in the center of the bottom surface of the yoke 10, and the magnet 20, the plate 22, and the circuit board 50 are formed with the hole coaxial with the rivet hole of the yoke 10. As shown in FIG. The voice coil 24 disposed between the yoke 10 and the magnet 20 and the diaphragm 28 disposed above the plate 22 and having an edge fixed to the yoke 10 and having the voice coil 24 fixed thereto. It includes. The magnetic field emitted from the magnet 20 moves to the lower yoke 10 through the plate 22 on the magnet 20, and constitutes a closed circuit moving back to the magnet 20. The magnetic field moving to the space between the plate 22 and the lower yoke 10 is applied to the voice coil 24 so that the voice coil 24 becomes magnetic, depending on the magnetic polarity of the voice coil 24. The voice coil 24 is pulled or pushed out. That is, when the magnetic polarity of the voice coil 24 is equal to the magnetic polarity of the plate 22 and the yoke 10 at the lower side, the magnetic coil 24 repels each other and pushes the voice coil 24 to move the voice coil 24 to the front. 22) and the magnetic force polarity of the lower yoke 10 is attracted to each other to pull the voice coil 24 back. As such, when the voice coil 24 moves, the diaphragm 28 to which the voice coil 24 is fixed moves back and forth to vibrate air to generate sound. And the upper side of the yoke 10 so that the piezoelectric element 30 composed of the metal plate 32 and the piezoelectric ceramic 31 bonded to the metal plate 32 is coupled and the piezoelectric element 30 is disposed above the diaphragm 28. It further comprises a cap 40 disposed in the opening and coupled to the yoke 10.

In the speaker using the dynamic speaker and the piezoelectric element having such a structure, low-frequency sound is generated by the diaphragm 28 of the dynamic speaker, and the speaker composed of the piezoelectric element 30 generates high-frequency sound, thereby generating high and low sound simultaneously. It was possible to implement a 2-way speaker.

However, the two-way speaker according to the related art does not generate a soft tone by configuring a tweeter speaker using a piezoelectric element, and low-frequency sound generated from the diaphragm is formed on the edge of the cap (metal plate). There was a problem that does not have a straightness by being discharged through the balls. That is, the sound generated in the diaphragm had to be discharged with straightness, but it was not discharged with straightness and was discharged through the sound discharge holes at the edge of the metal plate. It was.

(Patent Document 0001) Republic of Korea Patent No. 10-1515815 (Notification Date: 2015.05.06)

An object of the present invention is to form a low frequency sound dynamic speaker and a high frequency sound dynamic speaker integrally to generate a high frequency sound and a low frequency sound at the same time, the low frequency sound of the low frequency sound dynamic speaker to generate a high frequency sound It is to provide a two-way dynamic speaker that can be discharged with a straight through the center of the dynamic speaker to prevent the distortion or heterogeneity of the sound, and to improve the intelligibility of the sound by having the sound straight.

In addition, the problem to be solved by the present invention is not limited to the above-mentioned technical problem, and other technical problems not mentioned are clearly to those skilled in the art from the following description. It can be understood.

The object is, according to the present invention, a hollow frame; A magnetic field generating member disposed in the frame having an external magnetic field for generating low frequency sound and an magnetic field for opening high frequency sound in an opposite direction to the external magnetic field; A low frequency diaphragm provided with a low frequency voice coil at one inlet of the frame facing the magnetic field; And a high frequency diaphragm having a through hole formed at the center and having a high frequency voice coil at an inlet of the other side of the frame, wherein the magnetic field generating portion of the magnetic field generating member is generated by the low frequency diaphragm. One or more low frequency discharge passages are provided to allow low frequency sounds to pass through the through hole, and between the magnetic field generating member and the high frequency diaphragm, the low frequency sounds discharged to the low frequency discharge passage are generated. A hollow low frequency nozzle frame is disposed to guide the through hole formed in the center of the diaphragm to discharge with a straightness from the center of the high frequency diaphragm, wherein one end of the low frequency nozzle frame is in contact with the magnetic field generating unit. The other end is integrated with the dynamic speaker, characterized in that located in the through hole Is achieved by a type 2-way speaker.

The low frequency nozzle frame is formed such that one end contacting the magnetic field generating member is larger than the diameter of the other end so that the low frequency sound discharged to the low frequency sound discharge path is collected in the center, and an inclined guide surface is formed on the inner circumferential surface thereof. Can be.

The outer circumferential surface of the low frequency nozzle frame is provided with an inner fixing ring seat for seating the inner fixing ring of the high frequency diaphragm, and the outer inner surface of the frame at the same position as the inner fixing ring seat is fixed outside of the high frequency diaphragm. An outer fixing ring seating end is formed for seating the ring, and a fixing ring seating end for seating the fixing ring of the low frequency diaphragm may be formed on the inner circumferential surface of the frame in which the low frequency diaphragm is disposed.

On the outside of the low frequency diaphragm, a cap member for a low frequency diaphragm having an inner surface having the same shape as the outer surface of the remaining region except for the center region of the low frequency diaphragm is caused by resonance during sound reproduction of the low frequency diaphragm. It is coupled in close contact with the outer surface to suppress the ringing, the edge may be coupled to fix the fixing ring of the low-frequency diaphragm to the fixing ring seating end.

The outer surface of the high frequency diaphragm has a cap member for a high frequency diaphragm having an inner surface having the same shape as the outer surface of the outer edge region and the inner edge region of the high frequency diaphragm so as to suppress ringing caused by resonance during sound reproduction of the high frequency diaphragm. Closely coupled to the outer edge and the inner edge may be coupled to secure the inner fixing ring and the outer fixing ring of the high frequency diaphragm to the inner fixing ring seating portion and the outer fixing ring seating end.

The magnetic field generating member includes a yoke having a concave receiving portion open toward the low frequency diaphragm at a center thereof, and having an extended end extending in a horizontal direction from the receiving portion to an end thereof fixed to an inner circumferential surface of the frame; An outer magnetic permanent magnet which is fixed to the bottom of the accommodating part so as to be spaced from the inner side of the wall so that the voice coil for the low frequency sound is located between the wall of the receiving part, and an outer magnetic type that is coupled to an upper surface of the outer magnetic permanent magnet. The magnetic magnetic field portion made of a magnetic plate; A ring-type magnetic permanent magnet which is fixed to the rear surface of the expansion end so as to be spaced apart from the outer wall of the accommodating part so that the voice coil for the high frequency sound is located between the outer side of the accommodating part wall, and the magnetic permanent type It may be made of a magnetic field magnetic field consisting of a ring-type magnetic field magnetic plate coupled to the magnet.

The space formed between the low frequency diaphragm and the magnetic field forming member may be formed on one surface of the magnetic magnetic plate facing the low frequency diaphragm and the upper surface of the expansion end, or one surface of the magnetic magnetic plate or the upper surface of the expansion end. The space reduction unit for reducing the volume is provided to protrude curvedly toward the low-frequency diaphragm, the space reduction portion may be formed integrally with the external diaphragm and the expansion end, or may be manufactured separately and combined.

The magnetic field generating member may include: an external magnetic field portion including an external magnetic permanent magnet and respective magnetic magnetic magnetic plates disposed on both sides of the external permanent magnet; And a ring type magnetic permanent magnet disposed on the outer side of the magnetic permanent magnet, and a ring type magnetic magnetic force disposed on both sides of the magnetic permanent magnet, respectively, while being spaced apart from the outer surface of the magnetic permanent magnet. The frame and the nonmagnetic partition are formed of a magnetic field portion consisting of a plate, and the magnetic field generating member is located inside the frame such that a nonmagnetic partition is located between the magnetic permanent magnet and the magnetic permanent magnet. This insert can be injected and constructed integrally.

At the end of the nonmagnetic partition wall facing the high frequency diaphragm, the low frequency nozzle frame may be insert injection molded.

On the surface of the magnetic magnetic plate facing the low frequency diaphragm, a space reducing portion for reducing the volume of the space formed between the low frequency diaphragm and the magnetic field forming member is provided, wherein the space reducing portion is the frame and the nonmagnetic material. When the partition wall is inserted into the insert, the insert is integrally formed with the frame so as to protrude curvedly toward the low frequency diaphragm, and on one surface of the magnetic magnetic plate facing the low frequency diaphragm, the low frequency diaphragm and the magnetic field forming member A space reduction part for reducing the volume of the space formed therebetween is provided to protrude curvedly toward the low frequency diaphragm, and the space reduction part may be integrally formed with the magnetic magnetic plate or may be manufactured separately and combined.

The low-pass sound exhaust passage, the space reducing portion, the magnetic magnetic plate, the magnetic permanent magnet and the bottom of the yoke is formed through the center, or one or more formed at the bottom edge of the yoke, or the space It may be formed through the center of the bottom portion of the bearing portion, the magnetic magnetic plate, the magnetic permanent magnet and the yoke may be formed at least one of the bottom edge of the yoke.

The low-frequency sound passage is formed through the center of the magnetic permanent magnet and the magnetic magnetic plate disposed on both sides of the magnetic permanent magnet, respectively, or at the edge of the magnetic magnetic plate on the side of the high-frequency diaphragm. One or more formed or penetrating the center of the magnetic magnetic plate and the magnetic magnetic plate disposed on both sides of the magnetic permanent magnet, respectively, one at the edge of the magnetic magnetic plate side of the high-frequency diaphragm It can be formed over.

The low-frequency exhaust path is formed through the center of the space-reducing portion, the magnetic permanent magnet, and the magnetic magnetic plate disposed on both sides of the magnetic permanent magnet, or the high frequency diaphragm side. One or more magnets formed on the edge of the magnetic plate, or formed through the center of the space-reducing portion, the magnetic permanent magnet, and the magnetic magnetic plate disposed on both sides of the magnetic permanent magnet, respectively, the high-frequency diaphragm One or more may be formed on the edge of the magnetic plate of the magnetic side.

According to the present invention, it is possible to provide an effect of providing a two-way speaker capable of simultaneously generating a high frequency sound and a low frequency sound by integrally forming a low frequency sound dynamic speaker and a high frequency dynamic speaker.

In addition, the low-frequency sound generated from the low-frequency diaphragm is provided with a low-frequency nozzle frame of the through hole formed in the center of the high-frequency diaphragm through a low-frequency discharge path formed at the center of the magnetic field of the outer magnetic field. It can be discharged with straightness, and thus sound intelligibility can be improved, sound distortion can be minimized, and heterogeneity can be prevented.

1 is a cross-sectional view showing a speaker according to the prior art.

2 is a cross-sectional view showing an integrated two-way speaker using a dynamic speaker according to a first embodiment of the present invention.

FIG. 3 is a component diagram illustrating a structure of the yoke and the nozzle frame shown in FIG. 2.

4 is a cross-sectional view showing a state in which the low-frequency sound discharge path is formed in the center of the magnetic field as another embodiment of the low-frequency sound discharge path shown in FIG.

5, 6, and 7 are still other embodiments of the low frequency discharge path shown in FIG. 2, and FIG. 5 is a cross-sectional view showing a state in which the low frequency discharge path is formed at the center of the magnetic field of the magnetic field and the bottom edge of the yoke. 6 is a perspective view of a coupled state of the dynamic speaker illustrated in FIG. 5, and FIG. 7 is an exploded perspective view of the dynamic speaker illustrated in FIGS. 5 and 6.

FIG. 8 is a cross-sectional view and a front view illustrating the cap member for the low-frequency diaphragm and the cap member for the high-frequency diaphragm shown in FIG. 2.

FIG. 9 is a cross-sectional view illustrating a state in which the space reduction unit is integrally or separately attached to the magnetic plate of the magnetic field of FIG. 2.

10 is a cross-sectional view showing an integrated two-way speaker using a dynamic speaker according to a second embodiment of the present invention.

FIG. 11 is a cross-sectional view illustrating another example of the low-frequency sound discharge path illustrated in FIG. 10 in which a low-frequency sound discharge path is formed in the center of the magnetic magnetic field part.

FIG. 12 is a cross-sectional view illustrating a state in which the low frequency sound discharge path is simultaneously formed at the center and the edge of the magnetic field as another embodiment of the low frequency sound discharge path shown in FIG. 10.

13 to 16 are cross-sectional views illustrating a state in which the space reduction unit is integrally formed or separately attached to the magnetic field generating member illustrated in FIGS.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

In the accompanying drawings, FIG. 2 is a cross-sectional view showing an integrated two-way speaker using a dynamic speaker according to a first embodiment of the present invention, and FIG. 3 is a part for explaining the structure of the yoke and the nozzle frame shown in FIG. 4 is a cross-sectional view showing a state in which the low-frequency sound discharge path is formed in the center of the magnetic field as another embodiment of the low-frequency sound discharge path shown in FIG. And 5 to 7 is another embodiment of the low-frequency sound path shown in Figure 2, Figure 5 is a cross-sectional view showing a state in which the low-frequency sound path formed in the center of the magnetic field of the magnetic field and the bottom edge of the yoke 6 is a perspective view of a coupled state of the dynamic speaker illustrated in FIG. 5, and FIG. 7 is an exploded perspective view of the dynamic speaker illustrated in FIGS. 5 and 6. FIG. 8 is a cross-sectional view and a front view illustrating the cap member for the low-frequency diaphragm and the cap member for the high-frequency diaphragm shown in FIG. 2, and FIG. 9 is a space reduction portion of the magnetic field plate of the magnetic-magnetic field shown in FIG. 2. It is sectional drawing which shows the state provided with an integrated type or a separate attachment type.

As shown in Figures 2 to 9, the integrated two-way speaker 100 using the dynamic speaker according to the present invention, the hollow frame 200, the magnetic field portion 310 for generating low-frequency sound and The magnetic field generating member 300 is opened in the opposite direction to the external magnetic field part 310, and has an internal magnetic field part 320 for generating high-frequency sound, which is disposed inside the frame 200, and the magnetic field-type magnetic field. A low-frequency diaphragm 400 is installed at one side of the frame 200 facing the tenon 310 and is provided with a low-frequency voice coil 410 and a through-hole 510 formed at the center of the frame 200. The high frequency diaphragm 500 provided with the high frequency voice coil 520 at the inlet of the other side and the through hole 510 formed in the center of the high frequency diaphragm 500 discharged to the low frequency sound discharge path 362. ), And the low range goes straight from the center of the high frequency diaphragm 500 It comprises a hollow low-frequency nozzle frame 700 is installed between the magnetic field generating member 300 and the high-frequency diaphragm 500 to discharge with a castle.

This will be described in more detail.

First, the low-frequency sound discharge path 362 may be formed at the bottom of the yoke 360 or penetrate the center of the magnetic magnetic field 310, and the bottom of the yoke 360 and the magnetic magnetic field ( It can be formed at the same time through the center of the 310, the low-pass sound discharge path formed through the center of the magnetic field portion 310 and the decode sign for the low-frequency sound path formed on the bottom of the yoke 360 All reference numerals are referred to as '362' unified.

The frame 200 forms a frame of the integrated two-way speaker 100 using the dynamic speaker according to the present invention, and is made of a nonmagnetic material. Such a frame is made of a hollow hollow, can be made of a cylindrical, polygonal cylindrical, elliptic cylindrical, etc. according to the use of the speaker 100 or the needs of the consumer, and will be described based on the cylindrical embodiment in this embodiment. .

The magnetic field generating member 300 generates a magnetic field by the applied power, so that the low-frequency voice coil 410 of the low-frequency diaphragm 400 and the high-frequency voice coil 520 of the high-frequency diaphragm 500 are the strength of the current. According to the physical movement to generate the sound. The magnetic field generating member 300 has a concave accommodating portion 364 open toward the low frequency diaphragm 400 at the center thereof, and extends in the horizontal direction from the accommodating portion 364 so that an end thereof is formed on the inner circumferential surface of the frame 200. The inner side of the wall 364A of the receiving portion 364 so that the low-frequency voice coil 410 is positioned between the yoke 360 having the fixed end 368 fixed thereto and the wall 364A of the receiving portion 364. External magnetic field portion consisting of an external magnetic permanent magnet 312 is fixed to the bottom of the receiving portion 364 and fixed to the bottom of the receiving portion 364, and the magnetic magnetic plate 314 coupled to the upper surface of the magnetic permanent magnet 312 The expansion end 368 is spaced apart from the outside of the wall 364A of the accommodating portion 364 so that the high frequency voice coil 520 is positioned between the 310 and the outer side of the accommodating portion 364 of the wall 364A. Ring-shaped magnetic permanent magnet 322 fixed to the back of the) and the ring-shaped magnetic magnetic plate 324 coupled to the magnetic permanent magnet 322 I-shape composed of a self-carrying (320) is made.

The yoke 360 and the magnetic magnetic plate 324 are made of magnetic material.

Meanwhile, at the bottom edge of the receiving portion 364 of the yoke 360, as shown in FIGS. 2 and 3, the low frequency sound generated from the low frequency diaphragm 400 is discharged toward the center of the high frequency diaphragm 500. At least one low frequency discharge path 362 is formed. The low-frequency sound discharge path 362 may be formed in a circular shape, as well as an elliptical shape or an arc shape.

As shown in FIG. 4, the low-frequency sound discharge path 362 may be formed to penetrate the center of the external magnetic field part 310. That is, the low-frequency sound path 362 may be formed through the center of the bottom of the magnetic magnetic plate 314, the magnetic permanent magnet 312 and the receiving portion 364 of the yoke 360. As the low frequency sound discharge path 362 is formed at the center of the magnetic field portion 310, the low frequency sound generated in the low frequency diaphragm 400 is guided to the low frequency nozzle frame 700 with straightness and without high refractive interference. It can be discharged (output) to the outside through the through hole 510 formed in the center of the negative diaphragm 500. Thus, the intelligibility of the low range is improved and distortion and heterogeneity can be prevented.

Meanwhile, as illustrated in FIGS. 5 to 7, one or more low-frequency sound discharge paths 362 are formed at the bottom edge of the receiving portion 364 of the yoke 360, and the magnetic magnetic plate 314 and the magnetic ruler are formed. The permanent magnet 312 and the yoke 360 of the receiving portion 364 of the bottom may be formed through the center. That is, the low-frequency sound discharge path 362 includes the bottom edge of the receiving portion 364 of the yoke 360 and the receiving magnetic plate 314 and the magnetic permanent magnet 312 and the receiving portion 364 of the yoke 360. By being formed through the center of the bottom, the low frequency sound can be discharged through the various discharge paths, in particular, the low frequency sound passage 362 formed at least one low frequency sound at the bottom edge of the receiving portion 364 of the yoke 360 And, by being able to be discharged at the same time through the low-frequency sound discharge path 362 formed through the center of the bottom of the outer magnetic plate 314 and the outer magnetic permanent magnet 312 and the yoke 360, 364, The low-frequency emission is straight and can be discharged smoothly without interference.

The low sound diaphragm 400 includes a low sound voice coil 410 positioned between the wall 364A of the housing portion 364 and the magnetic magnetic plate 314, and is formed on the inner circumferential surface of the frame 200. The fixing ring 420 integrated at the edge is seated and fixed to the fixing ring seating end 210.

An inner surface of the low frequency diaphragm 400 has the same shape as the outer surface 430 of the remaining region except for the center region of the low frequency diaphragm 400, as shown in FIGS. 2 and 8 (a). The cap member 440 for the low frequency diaphragm having the side surface 442 is coupled. The cap member 440 for the low frequency diaphragm is closely coupled to the outer surface 430 so as to suppress ringing caused by resonance during sound reproduction of the low frequency diaphragm 400. The edge of the cap member 440 for the low frequency diaphragm is fixed by pressing the fixing ring 420 of the low frequency diaphragm 400 to the fixing ring seating end 210. In this structure, the low-frequency diaphragm 400 is coupled to the frame 200 in a stable fixed state.

In addition, since the cap member 440 for the low frequency diaphragm is closely attached to the outer surface 430 of the low frequency diaphragm 400, the low frequency diaphragm 400 is resonated by the resonance during the sound reproduction of the low frequency diaphragm 400. Sound quality can be improved by preventing or minimizing ringing.

On the outer surface of the cap member 440 for the low-frequency diaphragm described above, the PCs 800 for applying power to the voice coils 410 and 520 are coupled.

The high frequency diaphragm 500 has a through hole 510 formed in the center, and is provided with a high frequency voice coil 520 at the inlet side of the frame 200 on the inlet side (the opposite direction to the direction in which the low frequency diaphragm is installed). As a result, the high frequency sound is generated as compared with the low frequency diaphragm 400. The high frequency diaphragm 500 has a through hole 510 formed at the center thereof, and an inner fixing ring 540 is provided at an edge of the through hole 510, and an outer fixing ring 550 is provided at an outer edge thereof. To be prepared. The high frequency diaphragm 500 configured as described above, the inner fixing ring 540 is seated on the inner fixing ring seating portion 720 formed on the outer circumferential surface of the low frequency nozzle frame 700, the outer fixing ring 550 is the inner fixing ring The outer fixing ring seating end 220 is formed on the inner circumferential surface of the frame 200 at the same position as the seating part 720. To this end, the inner fixing ring seating portion 720 is formed on the outer circumferential surface of the low-frequency sound nozzle frame 700, and the outer fixing ring 550 is formed on the inner circumferential surface of the frame 200 at the same position as the inner fixing ring seating portion 720. An outer fixing ring seating end 220 for seating is formed.

And, in the state in which the inner fixing ring 540 of the high frequency diaphragm 500 is seated on the inner fixing ring seating portion 720, and the outer fixing ring 550 is seated on the outer fixing ring seating portion 220, FIG. 2 and 8 (b) formed the cap member 560 for the high frequency diaphragm presses the inner fixing ring 540 to the inner fixing ring seating portion 720, and the outer fixing ring 550 It is fixed by pressing the outer fixing ring seating end 220.

That is, the cap member 560 for the high frequency diaphragm having the inner side surface 562 having the same shape as the outer side edge region 501 of the high frequency diaphragm 500 and the outer side surface 505 of the inner edge region 503 When the sound of the high frequency diaphragm 500 is regenerated, the ring is coupled to the outer surface 505 to suppress the resonance caused by resonance, and the outer edge and the inner edge of the inner fixing ring 540 and the outer side of the high frequency diaphragm 500 The fixing ring 550 is coupled to fix the inner fixing ring seating portion 720 and the outer fixing ring seating end 220. At this time, the cap member 560 for the high frequency diaphragm is formed with a plurality of sound discharge holes 564, as shown in (b) of Figure 8, the center through the cap member through hole matching the through hole (510) ( 566) is formed.

In this way, the cap member 560 for the high frequency diaphragm fixes the high frequency diaphragm 500, and the inner side 562 adheres to the outer side 505 so that the resonance of the high frequency diaphragm 500 occurs when the sound is regenerated. Ringing can be minimized or prevented so that sound quality can be improved.

Meanwhile, the diameter (size) of the high frequency diaphragm 500 may be formed to be the same as the diameter (size) of the low frequency diaphragm 400 as shown in FIG. 2. Of course, it can be formed smaller than the size of the low-frequency diaphragm 400. As such, by forming the diameter of the high frequency diaphragm 500 to be the same as or similar to the size of the low frequency diaphragm 400, the sound field of the high frequency sound may be improved. That is, in the case of a two-way dynamic speaker according to the prior art, since the size of the tweeter diaphragm for generating high frequency is smaller than that of the low frequency diaphragm 400, there is a problem in that the sound field is deteriorated. The diameter of the 500 is configured to be the same as the size of the low-frequency diaphragm 400 is to improve the sound field of the high-frequency sound. As such, the size of the high frequency diaphragm 500 may be configured to be the same as that of the low frequency diaphragm 400. The through-hole 566 for discharging the low frequency sound is formed in the center of the high frequency diaphragm 500. Because it becomes.

The low frequency nozzle frame 700 is disposed between the magnetic field generating member 300 of the magnetic field generating member 300 and the high frequency diaphragm 500 to discharge the low frequency sound into the low frequency discharge path 362. To guide toward the through-hole 510 formed in the center of the diaphragm 500 to discharge with a straightness in the center of the high-frequency sound diaphragm 500.

The low frequency nozzle frame 700 is formed of a hollow hollow of a nonmagnetic material, one end of the low frequency nozzle frame 700 is in contact with the magnetic field generating member 300, the other end is located in the through hole 510. .

This will be described in more detail.

As shown in FIGS. 2 and 3, the low frequency nozzle frame 700 has a low frequency discharge path 362 formed through the bottom of the receiving portion 364 or the center of the magnetic field portion 310. One end contacting the magnetic field generating member 300 is formed larger than the diameter of the other end (area located in the through hole) to collect and discharge the low frequency sound emitted to the center of the high frequency diaphragm 500, and the inner peripheral surface is inclined. A guide surface 740 is formed, where the inner diameter of the other end is a nozzle hole 770 through which the low range sound is guided and discharged.

In particular, one end of the low-frequency nozzle frame 700 may be attached to the bottom outer surface of the receiving portion 364 of the yoke 360, but in this embodiment, one end of the low frequency nozzle frame 700 is inserted by insert injection molding. The structure integrated with the floor will be described.

That is, as shown in FIG. 3, the yoke 360 and the insert injection part of the low frequency nozzle frame 700 penetrates into the bottom of the receiving portion 364 of the yoke 360 to form the jaw 750. It is molding. The low injection nozzle frame 700 is integrally formed with the yoke 360 through the insert injection molding, and the low sound discharged to each of the low sound discharge passages 362 formed at the bottom of the receiving portion 364 is a low sound nozzle. It is guided to the inclined guide surface 740 formed in the frame 700 can be discharged to the outside through the nozzle hole 770 formed at the other end.

On the other hand, when the low frequency nozzle frame 700 is integrated with the yoke 360 by insert injection molding, an annular (ring-shaped) jaw 750 is formed on the entire bottom edge of the receiving portion 364 of the yoke 360. Therefore, when the magnetic permanent magnet 312 is installed attached to the bottom of the receiving portion 364, the jaw 750 and the outer peripheral surface of the lower magnetic permanent magnet 312 as shown in Figure 3 (c) The interval t is formed therebetween. The jaw 750 forming such a gap t prevents the magnetically-shaped permanent magnet 312 from moving toward the wall 364A of the receiving portion 364 even if it is dropped from the bottom of the receiving portion 364 by an external force. Thus, the magnetic permanent magnet 312 or the magnetic magnetic plate 314 is not interfered with the low-frequency voice coil 410. That is, by forming the jaw 750 at the bottom edge of the receiving portion 364, it is possible to prevent the magnetic permanent magnet 312 from moving toward the wall 364A of the receiving portion 364 (side pulled phenomenon). Will be.

As described above, the low frequency nozzle frame 700 having the inclined guide surface 740 formed on the inner circumferential surface and the nozzle hole 770 formed on the other end thereof is disposed between the yoke 360 and the through hole 510 of the high frequency diaphragm 500. By being disposed in, the low frequency sound generated in the low frequency diaphragm 400 can be discharged from the central region of the high frequency diaphragm 500 with straightness without interference.

The operation of the integrated two-way speaker 100 using the dynamic speaker according to the first embodiment of the present invention configured as described above will be described.

As shown in FIGS. 1 to 9, when the integrated two-way speaker 100 using the dynamic speaker is applied to the voice coils 410 and 520 through the PC 800, the voice coils 410 and 520 are mechanically connected. You exercise.

In this process, the low-frequency sound is generated in the low-frequency diaphragm 400, as shown in FIG. 2, through the nozzle hole 770 of the low-frequency sound discharge path 362 and the low-frequency nozzle frame 700 (high frequency diaphragm ( Discharged to the outside through the central portion of 500, the high-frequency sound generated in the high-frequency diaphragm 500 is immediately discharged to the outside as a low-frequency sound.

On the other hand, the low-pass sound path 3612 is formed alone through the center of the magnetic field portion 310, or formed at the bottom edge of the receiving portion 364 and at the same time penetrates the center of the magnetic field portion 310 Even if formed as described above, the low-frequency sound generated in the low-frequency sound diaphragm 400 is discharged to the low-frequency sound discharge path 362 formed in the center of the receiving portion 364 and the magnetic field portion 310 after Guided to the low frequency nozzle frame 700 is to be discharged with a straightness through the center of the high frequency diaphragm 500.

As described above, the low frequency sound is discharged in the same direction as the high frequency sound from the center of the high frequency diaphragm 500 with the straightness through the inclined guide surface 740 and the nozzle hole 770 formed on the inner circumferential surface of the low frequency nozzle frame 700. As a result, the sound clarity can be improved.

The low frequency diaphragm diaphragm cap member 440 is closely attached to the outer surface of the low frequency diaphragm 400, and the high frequency diaphragm diaphragm caching material 560 is tightly coupled to the outer surface of the high frequency diaphragm 500. When the sound is generated, it is possible to minimize the distortion of the sound due to resonance and to increase the intelligibility. That is, the cap members 440 and 560 are in close contact with the outer surface of each of the diaphragms 400 and 500, so that the sound of each of the diaphragms 400 and 500 is caused by resonance when sound is generated, thereby increasing sound intelligibility and reducing distortion and heterogeneity. Will be.

On the other hand, as shown in Figure 9 (a) of the accompanying drawings, the low-frequency diaphragm 400 and the magnetic field portion 310 on one surface of the magnetic magnetic plate 314 facing the low-frequency diaphragm 400 The space reduction part 314A for reducing the volume of the space S formed between the two sides may be formed to protrude curvedly toward the low frequency diaphragm 400. In this way, since the space reduction part 314A is integrally formed to protrude from the magnetically magnetic plate 314, the volume S of the space S can be reduced, thereby minimizing ringing due to resonance during low frequency reproduction. do. That is, since the volume of the space S is reduced by the space reducing unit 314A, the ringing due to resonance is minimized when the low frequency sound is reproduced, so that the sound clarity may be increased. And, in the accompanying drawings, as shown in FIG. 9 (b), the space reduction portion 314A may be separately manufactured and attached to one surface of the magnetic magnetic plate 314 may be coupled.

10 is a cross-sectional view illustrating an integrated two-way speaker using a dynamic speaker according to a second embodiment of the present invention.

As shown in FIG. 10, the integrated two-way speaker 100 using the dynamic speaker according to the second embodiment is the same as the above-described embodiment except that the magnetic field generating member 300 is configured as follows.

That is, the magnetic field generating member 300, the external magnetic field portion 310 made of an external magnetic permanent magnet 312, each of the magnetic magnetic plates 314 are disposed on both sides of the magnetic permanent magnet 312, respectively And a ring type magnetic permanent magnet disposed outside the magnetic permanent magnet 312 while maintaining a distance from the outer surface of the magnetic permanent magnet 312 (outer circumferential surface in the case of a circular shape) inside the frame 200. 322 and a magnetic field magnetic field unit 320 made of a ring-type magnetic plate 324 of the ring type disposed on both sides of the magnetic permanent magnet 322, respectively. In addition, the magnetic field generating member 300 is positioned inside the frame 200 so that the nonmagnetic partition wall 900 is formed between the external permanent magnet 312 and the magnetic permanent magnet 322. The nonmagnetic partition wall 900 is insert-injected to be integrated.

As such, the frame 200 and the nonmagnetic bulkhead 900 are insert-injected so that the nonmagnetic bulkhead 900 is formed between the external magnet permanent magnet 312 and the magnetic permanent magnet 322, thereby forming the magnetic permanent magnet ( 312) can increase the magnetic field strength.

That is, when the magnetic permanent magnet 312 is disposed at the center of the magnetic permanent magnet 322, the volume of the magnetic permanent magnet 312 is inevitably reduced compared to the ring-shaped magnetic permanent magnet 322. The magnetic permanent magnet 312 disposed in the center has a weak magnetic field compared to the volume. In addition, the magnetic field of the magnetic permanent magnet 312 located at the center of the two permanent magnets (312,322) may be weak because some magnetic field flows toward the inner magnetic permanent magnet 322 having a large volume of magnetic field and the magnetic field is dispersed. There is only one.

In order to solve this problem, as shown in Figure 10 by forming a nonmagnetic magnetic barrier between the magnetic permanent magnet 312 and the magnetic permanent magnet 322, the magnetic field-resistant permanent magnet, The magnetic force of the magnetic permanent magnet 312 is caused by the magnetic force (N) of the 322 to flow through the magnetic magnetic plate 314 and the magnetic magnetic plate 324 to the central magnetic permanent magnet 312 located at the center. It can raise the intensity.

On the other hand, the low frequency nozzle frame 700 is inserted into the end of the nonmagnetic partition wall 900 by insert injection. That is, by insert injection molding the frame 200, the nonmagnetic partition wall 900, and the low-frequency sound nozzle frame 700 integrally, it is possible to solve various problems that may be caused by having to assemble each component.

In the accompanying drawings, FIG. 11 is a cross-sectional view showing a state in which the low-frequency sound discharge path is formed in the center of the magnetic field as another embodiment of the low-frequency sound discharge path shown in FIG.

As shown in FIG. 11, the low-frequency sound discharge path 362 penetrates through the center of the magnetically shaped permanent magnet 312 and the magnetically shaped magnetic plate 314 disposed on both sides of the magnetically shaped permanent magnet 312, respectively. Same as the above embodiment except that it is formed at the same time.

In the accompanying drawings, FIG. 12 is a cross-sectional view illustrating a state in which the low-frequency sound discharge path is simultaneously formed at the center and the edge of the magnetic field as another embodiment of the low-frequency sound discharge path shown in FIG. 10.

As shown in FIG. 12, one or more low-frequency sound discharge paths 362 are formed at the edges of the magnetic plate 314 of the high-frequency diaphragm 500 side, and the magnetic permanent magnet 312 and the magnetic permanent magnet are formed. It may be formed penetrating through the center of the magnetic magnetic plate 314 disposed on both sides of the magnet 312, respectively. That is, the low-frequency sound discharge path 362 may be formed at the center and the edge at the same time.

Meanwhile, among the accompanying drawings, FIGS. 13 to 16 are cross-sectional views illustrating a state in which the space reduction part is integrally or separately attached to the magnetic field generating member illustrated in FIG. 10.

As shown in FIG. 13, the volume of the space S formed between the low frequency diaphragm 400 and the magnetic field generating member 300 on the surface of the magnetic magnetic plate 324 facing the low frequency diaphragm 400. The space reduction portion 324A is provided to reduce the space, and the space reduction portion 324A is projected to be curved toward the low-frequency diaphragm 400 when the frame 200 and the nonmagnetic partition wall 900 are insert injection molded. It is the same as the above embodiment except that the insert is integrally formed with the frame 200. In addition, a space S formed between the low-frequency diaphragm 400 and the external magnetic field part 310, that is, the magnetic field generating member 300, is formed on one surface of the magnetic-magnetic plate 314 facing the low-frequency diaphragm 400. The space reduction part 314A for reducing the volume of the bottom surface is provided to protrude curvedly toward the low frequency diaphragm 400.

That is, the space reduction portions 324A and 314A for reducing the volume of the space S on the surface of the magnetic magnetic plate 324 facing the low frequency diaphragm 400 and on one surface of the magnetic magnetic plate 314 are provided. Each will be formed. Here, the space reduction portion 314A formed on one surface of the magnetic magnetic plate 314 is integrally formed with the magnetic magnetic plate 314.

In addition, the space reduction parts 324A and 314A are separately manufactured as shown in FIG. 14, and the surface of the magnetic magnetic plate 314 facing the low frequency diaphragm 400, and one surface of the magnetic magnetic plate 314. Can be attached to each.

On the other hand, as shown in Figures 15 to 16, when the space reducing portion 314A is integrally or separately manufactured and attached (shown on the basis that the space reduction portion is formed integrally in Figures 15 and 16) Edo penetrating through the center of the magnetic field portion 310, the low-pass sound discharge path 362 is formed. That is, as shown in FIG. 15, the low-frequency sound discharge path 362 is formed at the bottom edge of the receiving portion 364 of the yoke 360, and at the same time, the space reduction portion 314A and the magnetic-type permanent magnet 312. ), And may be formed at the same time through the center of the bottom of the yoke (360) to which the external permanent magnet (312) is attached and accommodated, as shown in FIG. A low frequency sound discharge path 362 may be formed through the centers of the magnetic magnetic plates 314 and the magnetic permanent magnets 312.

While specific embodiments of the invention have been described and illustrated above, it is to be understood that the invention is not limited to the described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the invention. It is self-evident to those who have. Therefore, such modifications or variations are not to be understood individually from the technical spirit or point of view of the present invention, the modified embodiments will belong to the claims of the present invention.

At present, new technologies have been attempted in accordance with the advancement of the earphone and headphone markets, and multi-speaker technology has been introduced to secure wider dynamic range and optimal sound reproduction. In the case of hybrid multi-speaker technology using B / A and dynamic speakers, it is difficult to supply to the public due to the high raw material cost, but in the present invention, two sets of dynamic speakers are used for cost and manufacturing competitiveness. It can be applied to the development of earphones and headphones using multiple speakers.

Claims (14)

1. Hollow frame; A magnetic field generating member disposed in the frame having an external magnetic field for generating low frequency sound and an magnetic field for opening high frequency sound in an opposite direction to the external magnetic field; A low frequency diaphragm provided with a low frequency voice coil at one inlet of the frame facing the magnetic field; And a high frequency diaphragm having a through hole formed in the center and provided with a high frequency voice coil at the inlet of the other side of the frame.

   At least one low-pass sound discharge passage through which the low-frequency sound generated by the low-frequency diaphragm passes through the through-hole is provided in the external magnetic field of the magnetic field generating member.

   Between the magnetic field generating member and the high frequency diaphragm, the low frequency sound discharged into the low frequency discharging path is guided toward a through hole formed in the center of the high frequency diaphragm so that the high frequency diaphragm is discharged with straightness. The hollow low frequency nozzle frame is disposed, one end of the low frequency nozzle frame is in contact with the magnetic field generating portion, the other end is characterized in that located in the through hole,

   All-in-one 2-way speaker with dynamic speakers.
2. The method of claim 1,

   The low frequency nozzle frame,

   Characterized in that the one end in contact with the magnetic field generating member is formed larger than the diameter of the other end, the inclined guide surface is formed on the inner circumferential surface to collect the low-frequency sound discharged to the low-frequency sound discharge center in the center;

   All-in-one 2-way speaker with dynamic speakers.
3. The method of claim 1,

   On the outer circumferential surface of the low frequency nozzle frame,

   An inner fixing ring seating portion is provided for seating the inner fixing ring of the high frequency diaphragm, and an outer fixing ring seat for seating the outer fixing ring of the high frequency diaphragm on the inner circumferential surface of the frame at the same position as the inner fixing ring seating portion. A stage is formed,

   On the inner circumferential surface of the frame in which the low frequency diaphragm is disposed,

   Characterized in that the fixing ring seating end is formed for mounting the fixed ring of the low-frequency diaphragm,

   All-in-one 2-way speaker with dynamic speakers.
4. The method of claim 1,

   On the outside of the low frequency diaphragm,

   The low frequency diaphragm cap member having an inner surface having the same shape as the outer surface of the remaining region except for the center region of the low frequency diaphragm is provided on the outer surface so as to suppress ringing by resonance during sound reproduction of the low frequency diaphragm. Closely coupled, characterized in that the edge is coupled to secure the fixing ring of the low-frequency diaphragm to the fixing ring seating end,

   All-in-one 2-way speaker with dynamic speakers.
5. The method of claim 1,

   The outer surface of the high frequency diaphragm has a cap member for a high frequency diaphragm having an inner surface having the same shape as the outer surface of the outer edge region and the inner edge region of the high frequency diaphragm so as to suppress ringing by resonance during sound reproduction of the high frequency diaphragm. It is coupled in close contact, the outer edge and the inner edge is coupled to secure the inner fixing ring and the outer fixing ring of the high frequency diaphragm to the inner fixing ring seating portion and the outer fixing ring seating end,

   All-in-one 2-way speaker with dynamic speakers.
6. The method of claim 1,

   The magnetic field generating member,

   A yoke having a concave receiving portion opened toward the low-frequency diaphragm at the center thereof, and having an extended end extending in a horizontal direction from the receiving portion and having an end fixed to an inner circumferential surface of the frame;

   An outer magnetic permanent magnet which is fixed to the bottom of the accommodating part so as to be spaced from the inner side of the wall so that the voice coil for the low frequency sound is located between the wall of the receiving part, and an outer magnetic type that is coupled to an upper surface of the outer magnetic permanent magnet. The magnetic magnetic field portion made of a magnetic plate;

   A ring-type magnetic permanent magnet which is fixed to the rear surface of the expansion end so as to be spaced apart from the outer wall of the accommodating part so that the voice coil for the high frequency sound is located between the outer side of the accommodating part wall, and the magnetic permanent type Characterized in that the magnetic field consisting of a magnetic field of the magnetic field of the ring type coupled to the magnet,

   All-in-one 2-way speaker with dynamic speakers.
7. The method of claim 6,

   On one surface of the magnetic magnetic plate facing the low-frequency diaphragm and the upper surface of the expansion end, or one surface of the magnetic magnetic plate or the upper surface of the expansion end,

   The space reduction portion for reducing the volume of the space formed between the low-frequency diaphragm and the magnetic field forming member is provided to protrude curvedly toward the low-frequency diaphragm, wherein the space-reducing portion is formed integrally with the magnetic diaphragm and the expansion end , Characterized in that the combined is made,

   All-in-one 2-way speaker with dynamic speakers.
8. The method of claim 1,

   The magnetic field generating member,

   An external magnetic field portion including an external magnetic permanent magnet and respective magnetic magnetic plates disposed on both sides of the external permanent magnet; And

   A ring-type magnetic permanent magnet disposed on the outer side of the magnetic permanent magnet and a ring-type magnetic magnetic plate disposed on both sides of the magnetic permanent magnet, while being spaced apart from the outer surface of the magnetic permanent magnet. Consists of a magnetic field consisting of

   Characterized in that the frame and the nonmagnetic partition wall are inserted and integrally formed with the magnetic field generating member located inside the frame such that the nonmagnetic partition wall is positioned between the external permanent magnet and the magnetic permanent magnet. ,

   All-in-one 2-way speaker with dynamic speakers.
9. The method of claim 8,

   At the end of the nonmagnetic partition wall facing the high frequency diaphragm,

   The low frequency nozzle frame is characterized in that the insert injection molding is integrated,

   All-in-one 2-way speaker with dynamic speakers.
10. The method of claim 8,

    On the surface of the magnetic magnetic plate facing the low-frequency diaphragm,

    A space reducing part is provided to reduce the volume of the space formed between the low frequency diaphragm and the magnetic field forming member, wherein the space reducing part protrudes toward the low frequency diaphragm when the frame and the nonmagnetic partition are inserted into the insert. It is formed by insert injection integrally with the frame,

    On one surface of the magnetic magnetic plate facing the low-frequency diaphragm,

    The space reduction portion for reducing the volume of the space formed between the low-frequency diaphragm and the magnetic field forming member is provided to protrude curvedly toward the low-frequency diaphragm, wherein the space-reducing portion is formed integrally with the magnetic magnetic plate, or separately Characterized in that the fabricated and combined,

    All-in-one 2-way speaker with dynamic speakers.
11. The method of claim 6,

    The low frequency discharge path,

    The magnetic magnetic plate, the magnetic permanent plate and the bottom of the magnetic permanent magnet and the yoke is formed, or at least one formed on the bottom edge of the yoke, or the magnetic magnetic plate, the magnetic permanent magnet and the yoke of It is formed through the bottom of the center and characterized in that at least one formed on the bottom edge of the yoke,

    All-in-one 2-way speaker with dynamic speakers.
12. The method of claim 7, wherein

    The low frequency discharge path,

    It is formed through the center of the bottom of the space reduction portion, the magnetic magnetic plate and the magnetic permanent magnet and the yoke, or at least one formed on the bottom edge of the yoke, or the space bearing portion and the magnetic magnetic plate And formed through the center of the bottom of the outer magnetic permanent magnet and the yoke, and characterized in that at least one formed on the bottom edge of the yoke,

    All-in-one 2-way speaker with dynamic speakers.
13. The method of claim 8,

    The low frequency discharge path,

    The penetrating permanent magnet and the magnetic magnetic plate formed on both sides of the magnetic permanent magnet respectively disposed on both sides, or formed at least one edge of the magnetic magnetic plate side of the high-frequency diaphragm, It is formed through the center of the magnetic permanent magnet and the magnetic magnetic plate, respectively disposed on both sides of the magnetic permanent magnet, characterized in that at least one formed on the edge of the magnetic magnetic plate of the high-frequency diaphragm side ,

    All-in-one 2-way speaker with dynamic speakers.
14. The method of claim 10,

    The low frequency discharge path,

    1 is formed through the center of the space-reducing portion, the magnetic permanent magnet, and the magnetic magnetic plate disposed on both sides of the magnetic permanent magnet, or on the edge of the magnetic magnetic plate on the high-frequency diaphragm side. At least one of the plurality of magnetic field plates formed through or through the center of the space-reducing portion, the magnetic permanent magnets, and the magnetic magnetic plates disposed on both sides of the magnetic permanent magnets, respectively; Characterized in that one or more formed on the edge,

    All-in-one 2-way speaker with dynamic speakers.

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