KR200282694Y1 - Two way speaker for communication apparatus and audio apparatus - Google Patents

Abstract

The present invention relates to a bidirectional speaker mounted on a communication device and an audio device such as a mobile phone, a PDA, and more particularly, by integrating two speakers into one body to reduce manufacturing costs and assembly costs, and to increase space utilization. A bidirectional speaker for a communication device and an audio device.

Two-way speaker for communication and audio equipment according to the present invention, the rear of the two speakers consisting of a yoke and a magnet, a magnetic plate, a diaphragm and PCB with the voice coil attached to the back, and a frame and a protective cap for supporting these components In this two-way speaker fixed to face each other,

A sound hole 13 is formed at each side circumferentially divided around the sound groove 12 and the edge on the side 11, and on one side, a terminal plate 15 having three hole holes 16 communicating with the sound groove 12a. ), The hollow part 14 is fitted with a common yoke 20 to sit on the yoke seat 14a, inserting the synthetic resin common frame 10 and inserting elastically into the terminal hole 16 Terminal hole 16 connecting the lead wires drawn from the voice coil of the speaker to the upper end and the terminal (a) (b) (c) made of the same number, and the plate surface fitted to the hollow portion 14 of the common frame 10 The inner thigh 24 of the hollow portion 14 is pushed when the insert is ejected into the circumference of the jaw 22 and the upper circumference which sits on the yoke seat 14a under the 21 and the plate surface 21. A common yoke 20 having a groove 23 for entering therein, and a magnet 31 and a magnetic plate 3 at the centers of the front and rear surfaces of the plate surface 21 of the common yoke 20. 2) and diaphragms 34 and 44 having the magnets 41 and the magnetic plates 42 facing each other and the voice coils 33 and 43 attached to the back, respectively, to the frame portion 10a ( 10b) is characterized in that the sound holes 35, 45 is composed of a speaker 1 (30) and a speaker 2 (40) to cover the perforated protective caps (36, 46).

Description

Two way speaker for communication apparatus and audio apparatus}

The present invention relates to a bidirectional speaker mounted on a communication device and an audio device such as a mobile phone, a PDA, and more particularly, by integrating two speakers into one body to reduce manufacturing costs and assembly costs, and to increase space utilization. A bidirectional speaker for a communication device and an audio device.

The speaker used so far is, as shown in Fig. 1, a yoke 1, a vibration generating magnet 2, a magnet plate 3, a diaphragm 4 and a voice coil 5 attached to the back of the diaphragm 4 ), A PCB (6), and a frame (7) and a protective cap (8) for supporting these components, and the voice coil (5) and the PCB (6) are electrically connected by a conductor (9). It is connected.

In addition, as a speaker for bidirectional output, the two speakers are fixed to each other by facing each other on the back, and this type of speaker is mainly mounted on a communication device or an audio device such as a mobile phone or a PDA.

As such, in the conventional communication device and the audio device, two separate speakers are mounted to face each other, so that manufacturing cost and assembly cost increase due to an increase in production cost and assembly labor of the speaker.

In addition, since the two separately manufactured speakers are superimposed, the thickness thereof is doubled, and when mounted on a communication device and an audio device, the occupied area of the space increases, and the space utilization is pointed out as a disadvantage.

The present invention aims to provide a two-way speaker for communication and audio devices that can be improved by mounting the two speakers in one body to improve the mounting, the manufacturing cost and assembly cost is reduced by reducing the number of assembly, and also can increase the space utilization. I made it.

This technical problem can be achieved by assembling two speakers in one body so that both speakers share one common frame and one common yoke.

Figure 1 is a longitudinal side view showing a conventional speaker structure

2 is an exploded perspective view of a common frame and a common yoke

Figure 3 is a longitudinal side view showing the structure of a bidirectional speaker according to the present invention

Figure 4 is a partially cutaway side view showing a case of mounting the two-way speaker according to the present invention to the mobile phone

<Description of the symbols for the main parts of the drawings>

10: common frame 12, 12a: music groove

13: sound hole 14: hollow part

15: terminal plate 20: common yoke

21: plate 22: jaw

23: groove 31,41: magnet

32, 42: magnetic plate 33, 43: voice coil

34,44: Diaphragm 36,46: Protective cap

In FIG. 2, the bidirectional speaker according to the present invention shares the common frame 10 and the common yoke 20 with the speaker 1 30 and the speaker 2 40 with each other, and the common frame 10 includes the common yoke ( It is a synthetic resin molding which insert-inserted 20).

The common frame 10 is half of the thickness for convenience, and one side is used as the frame portion 10a for the speaker 1 30 that supports the edge of the diaphragm for the speaker 1 30, and the frame portion for the speaker 1 30 ( Opposite side 10a) is a frame portion 10b for speaker 2 40 that supports the diaphragm edge for speaker 2 40, which produces more diverse tones and richer volumes.

On the side 11 of the frame portion 10a for the speaker 1 30, a sound groove 12 is formed to radially spread the received signal sound to the outside, and the circumference is divided into equal parts around the edge of the common frame 10. Perforated sound hole 13 penetrates the inside of the frame portion 10b for the speaker 2 40 so that the sound of the speaker 2 40 can be echoed to the front of the common frame 10.

The hollow part 14 of the common frame 10 is used to saddle a common yoke 20 shared by the speaker 1 30 and the speaker 2 40. The frame part 10a and the speaker for the speaker 1 30 are also provided. The yoke seat 14a is formed on the boundary line with the frame part 10b for 2 (40).

The terminal plate 15 is integrally formed on the outer circumferential surface of the common frame 10 communicating with one side groove 12a.

The terminal plate 15 has a central-common terminal (a) connected to the voice coil of each speaker and three terminal holes 16 for elastically inserting and fixing + individual terminals (b) (c) on both sides thereof. have.

Like the common frame 10, the common yoke 20 has a half width, and the general part is a yoke part for the speaker 1 30 and the other half is a yoke part for the speaker 2 40.

The common yoke 20 is bent from one side of the plate 21 to one side of the circumferential wall erected to the outside to be in close contact with the outer surface of the circumferential wall connected to the plate 21. Reduce the shaft diameter inward to form the jaw (22).

The jaw 22 is required to sit on the yoke seat 14a formed in the frame portion 10b for the speaker 2 40 at the hollow portion 14 of the common frame 10.

The folded portion of the common yoke 20 forms a groove 23 wherever the circumference of the upper end is divided.

The groove 23 is formed in the groove 23 of the hollow portion 14 of the hollow portion 14 of the frame portion 10a for the speaker 1 30 when insert injection molding is performed so that the common yoke 20 is integrated with the common frame 10. (24) is pushed in and hardened so that the common yoke 20 is fixed on the common frame 10, thereby allowing the common yoke 20 to rotate in the axial direction as well as in the circumferential direction. It is intended to fix it.

3 is a longitudinal side view of the bidirectional speaker to which the common frame 10 and the common yoke 20 are applied.

In this figure, the common yoke 20 is integrally fixed to the common frame 10 by insert injection molding.

Here, in the common yoke 20, the jaw 22 at the lower portion of the plate surface 21 is caught in a position in which the jaw 22 is seated on the yoke seat 14a at the hollow portion 14 of the common frame 10, and the groove at the top thereof. In 23, the inner flesh 24 of the hollow part 14 is pushed in and hardened at the time of insert injection molding.

When assembling the speaker in this state, the magnet 31 for the speaker 1 (30) and the magnet plate 32 and the magnet 41 for the speaker 2 (40) are located at the center of the front and rear surfaces of the plate surface 21 of the common yoke 20. And the magnet plate 42 face each other.

Next, the small diameter diaphragm 34 to which the voice coil 33 is attached to the rear surface is attached to the frame portion 10a, and the large diameter diaphragm 44 to which the voice coil 43 is attached is to the frame portion. The conductive wire drawn out of the voice coil 33 after attaching to (10b) is the negative groove 12a on the side of the terminal plate 15, and the conductive wire drawn out of the voice coil 43 connects the adjacent sound hole 13 of the terminal plate 15. It penetrates and is led out to the groove 12a.

Then, each terminal (a) (b) (c) is inserted and fixed to each terminal hole 16 of the terminal plate 15, and the terminal (a) is soldered or spot-welded to the-wires of both voice coils 33 and 43. The + wire of the voice coil 33 for the speaker 1 (30) to the one + terminal (b), and the + wire of the voice coil 43 for the speaker 2 (40) to the other + terminal (c). Connect by soldering or spot welding.

Finally, a sponge or a thin nonwoven fabric dustproof plate 17 is applied to one edge of the frame portion 10a of the speaker 1 30, and a cover cap 36 having a perforated sound hole 35 is attached thereto. When the sound hole 45 is also covered with the protective cap 46 perforated in the frame portion 10b, a bidirectional speaker having a shape as shown in the drawing is completed.

4 is an exemplary view showing the side of a mobile phone equipped with a two-way speaker, the speaker facing outward in the flip (F) is a speaker 1 (30) functioning as a loudspeaker dedicated to the bell, the speaker facing inward is voice Speaker 2 40 which functions as a receive-only receive speaker is shown.

The speaker 1 (30) and the speaker 2 (40) is not limited to only the reception ring or voice reception, and the function of any of these speakers if the characteristics of the speaker is changed to the opposite reception ring or voice reception only Can be used.

The bidirectional speaker for the communication device and the audio device according to the present invention integrates two speakers that share a single frame and yoke in one body and is configured as a bidirectional speaker, so that the speaker is more easily attached to the device than when the two speakers are independently assembled. This breakthrough is improved and the assembly cost is reduced together with the manufacturing cost by reducing the number of assembly, it is a very useful design having the effect of high space utilization.

Claims (1)

In a bidirectional speaker fixed by attaching two speakers consisting of a yoke, a magnet, a magnetic plate, a diaphragm attached to the back of the voice coil and a PCB, and a frame and a protective cap supporting these components, facing each other, A sound hole 13 is formed at each side circumferentially divided around the sound groove 12 and the edge on the side 11, and on one side, a terminal plate 15 having three hole holes 16 communicating with the sound groove 12a. And the hollow portion 14, the common frame made of synthetic resin for inserting the insert by inserting the common yoke 20 to the yoke seat (14a); A terminal (a) (b) (c) formed of the same number as the terminal hole 16 which is elastically inserted into the terminal hole 16 and connects the lead wire drawn out from the voice coil of each speaker to the upper end; The plate surface 21 fitted into the hollow portion 14 of the common frame 10 and the chin 22 seated on the yoke seat 14a under the plate surface 21 and the circumference of the upper end are equally inserted. A common yoke 20 having a groove 23 through which the inner flesh 24 of the hollow portion 14 is pushed in during injection; The magnet 31 and the magnet plate 32 and the magnet 41 and the magnet plate 42 are attached to each other at the centers of the front and rear surfaces of the plate surface 21 of the common yoke 20, and the voice coils 33 are respectively placed thereon. (43) attaches the diaphragm (34) (44) attached to the rear surface to the frame portions (10a) (10b), and then covers the protective caps (36) (46) with the perforations (35) (45). Two-way speaker for communication and audio equipment, characterized in that consisting of the speaker 1 (30) and the speaker 2 (40).