KR20050012121A - External speaker for mobile - Google Patents

Abstract

PURPOSE: An exterior speaker in a mobile phone is provided to amplify a voice signal for telephone conversation with the other side so that a user can execute telephone conversation without holding the mobile phone to his/her ear. CONSTITUTION: An exterior speaker in a mobile phone comprises a pair of cases, a connector(4), an amplification circuit part(10), and a microspeaker(6). The cases are composed of an upper case(2) and a lower case(3). The upper and lower cases(2,3), in which the amplification circuit part(10) and the microspeaker(6) are installed, are capable of fixing the connector(4). The connector(4) connects the mobile phone electrically with the amplification circuit part(10) so that power, voice signals, and control signals can be transmitted between the mobile phone and the amplification circuit part(10). The amplification circuit part(10) is composed of components arranged on a PCB so as to amplify a voice signal for telephone conversation. The microspeaker(6), fixed to the inner side of the upper case(2) and driven by the voice signal amplified by the amplification circuit part(10), discharges the user's voice for telephone conversation with the other side through voice-emitting holes(7).

Description

External speaker for mobile phone {External speaker for mobile}

The present invention relates to an external speaker for a mobile phone. In particular, the present invention relates to an external speaker for a mobile phone that is equipped with an external speaker capable of amplifying a voice, thereby enabling one-to-one or multi-party phone calls with the other party without having the mobile phone close to the ear.

In general, mobile phones can be used to talk regardless of time or space. However, the conventional mobile phone should bring the mobile phone closer to the ear for the telephone call with the other party, and must hold the mobile phone with the hand for the telephone call.

In order to solve such a conventional inconvenience, hands-free mobile phones have been developed. However, this has the advantage of not having to hold the mobile phone with one hand when talking with the other party, but has the drawback that the other party cannot hear the sound of the call.

SUMMARY OF THE INVENTION An object of the present invention is to provide an external speaker for a mobile phone that amplifies a voice for a phone call with the other party so that a phone call can be made with the other party without bringing the mobile phone close to the ear.

In addition, another object of the present invention is to provide an external speaker for a mobile phone that amplifies a voice for a phone call with the other party so that people around the party can hear the contents of the call.

And another object of the present invention is to provide an external speaker for a mobile phone that can visually check the state of the telephone call with the other party.

1 is a perspective view showing an external speaker for a mobile phone according to the present invention.

2 is a partially exploded perspective view showing an external speaker for a mobile phone according to the present invention.

3 and 4 are perspective views showing the upper case and the lower case shown in FIGS.

5 is a view showing a state of use of the external speaker for a mobile phone according to the present invention.

6 is a partially cutaway exploded perspective view showing another embodiment of an external speaker for a mobile telephone according to the present invention.

7 and 8 are cross-sectional views showing an operating state of a connector among the external speakers shown in FIG.

-Explanation of symbols for the main parts of the drawings-

1, 20: external speaker 2, 22: upper case

3, 23: lower case 4, 24: connector

5: light emitting diode 6: micro speaker

7: discharge port 8: mounting hole

9, 14: coupling jaw 10: amplification circuit unit

11: printed circuit board 12: parts

13: fixing groove 15: screw hole

16: mobile phone 17: incision

21: storage space 25: fixed space

26, 29: support 27: top

28: rotating shaft

An external speaker for a mobile phone according to the present invention includes a pair of cases consisting of an upper case and a lower case for accommodating an amplification circuit portion made of micro speakers and components mounted on a printed circuit board, and for fixing a connector. It is fixed to be exposed to the outside of the lower case of the pair of cases, and when coupled with the mobile phone and electrically connects the mobile phone and the amplification circuit part so that power, voice signal and control signal can be transmitted between the mobile phone and the amplification circuit part. An amplifying circuit section comprising a connector and parts disposed on a printed circuit board so as to amplify a voice signal for a telephone call with a counterpart transmitted from a mobile phone through the connector, and fixed to an inner surface of the upper case and the amplifying circuit section. Driven by voice signal amplified by And a voice for a screen, characterized in that it comprises a micro-speaker to discharge through the upper case discharge port.

In addition, in the present invention, the driving power of the amplifying circuit unit and the micro speaker is preferably supplied from a battery mounted in a mobile phone or a separate battery built in the pair of cases.

In addition, in the present invention, it is preferable that the call / waiting selection line of the cellular phone extends to the connector so that the cellular phone and the external speaker can be separated by the combined coupling of the cellular phone.

In the present invention, it is preferable that the external speaker is further provided with a light emitting diode that is turned on while maintaining a call state by the combination of the mobile phone and the external speaker.

In the present invention, the lower case is provided with a mounting hole connected to the outside of the lower case through the incision to mount the light emitting diode, the light emitting by coupling with the light emitting diode on one side of the mounting hole It is preferable that a fixing groove for fixing the diode is formed.

In addition, in the present invention, one side of the lower case is formed with an accommodating space for accommodating the connector and a fixing space for fixing the connector are adjacent to each other, two support stands around the fixing space of the inside of the lower case Are formed to face each other at a predetermined interval, and two supports are formed to face each other at a predetermined interval to correspond to the existing support, so that the upper case and the lower case are integrally coupled to each other. It is preferable that the support and the support of the lower case be able to fix the rotation shaft of the upper end of the connector.

Hereinafter, the present invention will be described in detail.

Referring to FIG. 1, the external speaker 1 for a mobile phone according to the present invention includes a micro speaker, an amplification circuit part, a connector 4, a light emitting diode, and the like inside a pair of upper case 2 and lower case 3. It is built in. The horizontal cross sections of the upper case 2 and the lower case 3 have a rectangular shape close to the ellipse shape, and the upper case 2 and the lower case 3 have an elliptical shape facing upward and downward. Of course, the horizontal cross-section of the external speaker 1 may have various shapes such as ellipses, hexagons, octagons, etc., as well as a square close to an oval shape.

The upper case 2 of the upper case 2 and the lower case 3 which are integrally coupled are formed with a plurality of discharge ports 7 for discharging voice, and the lower case 3 has a A connector (4) is coupled to the outside to expose it to the outside, and the connector (4) mechanically and electrically secures (connects) the external speaker (1) to the mobile phone, while providing a power source between the mobile phone and the external speaker (1). It provides a line for transmitting and receiving voice signals and control signals. In addition, a light emitting diode 5 is fixed in a direction opposite to the connector 4 on the other side of the lower case 3, which is a mechanically coupled external speaker 1 to a mobile phone. When the phone calls the status of the call.

The configuration and coupling relationship of the external speaker 1 according to the present invention is as shown in FIG.

The upper case 2 having a plurality of discharge ports 7 for discharging voices has a rectangular dome shape facing upward as shown in FIG. 3, and although not shown in the drawing, the micro speaker 6 is provided inside. When the upper case 2 and the lower case 3, which are end portions of the upper case 2, are integrally coupled to each other, the engaging jaw 9 is formed. , This refers to that the outer surface of the end of the upper case 2 is formed to project than the inner surface.

The lower case 3, which is integrally coupled to the upper case 2, has a rectangular dome shape facing downward to face the upper case 2, and is coupled to an end of the upper case 2 which is in contact with the end of the upper case 2. A printed circuit board (11) is formed on the inner central portion of which various components (12) constituting an amplification circuit portion (10) for amplifying a voice signal transmitted from a mobile phone (not shown) are mounted. It is. The upper case 2 and the lower case 3, which are integrally coupled with each other, may be more firmly coupled with the screw through the screw holes 15.

The amplifying circuit section 10 formed on the printed circuit board 11 functions to amplify a voice signal transmitted from a mobile phone (not shown). In this case, the power required to amplify the voice signal may be supplied from a battery built in a conventional mobile phone or from a separate battery built in the external speaker 1.

In addition, one corner portion of the lower case 3 is fixed with a connector 4 that electrically connects each component constituting the amplifying circuit unit 10 with a mobile phone to enable transmission and reception of power, voice signals, and control signals. It is installed, which is exposed to the outside of the lower case (3) for mechanical coupling with the mobile phone.

At this time, the call / waiting selection line of the mobile phone extends to the connector 4 along a pair of lines of the connector 4, so that the call / waiting is performed by the mechanical separation coupling between the mobile phone and the external speaker 1. Alternatively, by placing a separate selection button on the external speaker 1 or by combining the external speaker 1 with the mobile phone, the call / standby state of the mobile phone may be selected by operating the selection button.

At the other corner of the lower case 3, a mounting hole 8 for mounting the light emitting diode 5 is formed. In particular, the fixing groove 13 for coupling with the projection of the light emitting diode 5 is formed in the mounting hole 8, so that the light emitting diode 5 is mounted on the mounting hole even when the external speaker 1 is shaken or an external impact is applied. 8) does not depart from

The mounting hole 14 has a height sufficient to fix the light emitting diode 5 without being influenced by the micro speaker 6 and the printed circuit board 11 embedded in the lower case 3. The lead wire (5) is supported so as to be connected to the printed circuit board 11, and serves to expose one part of the light emitting diode 5 to the outside.

The light emitting diode 5 fixed to one corner of the lower case 3 is turned on while the mobile phone maintains a call state when the external speaker 1 is coupled to the mobile phone, indicating the call state of the mobile phone. Function

If the upper case 2 is assembled after the connector 4, the light emitting diode 5, the printed circuit board 11, the micro speaker 6, and the like are incorporated in the lower case 3, the lower case 3 is attached to the lower case 3. It can be seen that the coupled connector 4 is exposed to the outside by a certain length for mechanical coupling with the cellular phone. In addition, the micro speaker 6 is disposed so that the discharge port of the micro speaker 6, not shown, is directed toward the discharge port 7 of the upper case 2 so that the voice for the telephone call with the other party can be discharged to the outside.

In addition, it can be seen that the micro speaker 6 is disposed on the printed circuit board 11 and the light emitting diode 5 sequentially stacked. Of course, each terminal 12 of the connector 4 and the components 12 formed on the printed circuit board 11 are electrically connected.

6 to 8 show another embodiment of the external speaker according to the present invention. The external speaker 20 shown in FIGS. 6 to 8 is different from the external speaker 1 shown in FIGS. When the light emitting diode is not mounted to display the call state of the communication unit, but the connector 24 described above as fixed in the description of FIGS. 1 to 5 is configured to be rotatable, the external speaker 20 is not used. The connector 24 is not exposed outside of the cases 22 and 23.

1 to 5, the external speaker 20, which is the same as or similar to the external speaker of FIG. 1, has not been described in detail. As shown in FIGS. 6 to 8, the connector 24 is accommodated on one side of the lower case 23. The storage space 21 which can be formed is formed, and the fixing space 25 which can fix the connector 24 so that rotation is possible is formed in one side of the lower case 23 adjacent to it.

The storage space 21 is recessed in the lower case 23 so that the connector 24 can be accommodated so that the connector 24 does not protrude from the outer surface of the lower case 23 when the connector 24 is accommodated in the storage space 21. The fixed space 25 connected to the storage space 21 has a shape in which the inside and the outside of the lower case 23 penetrate.

Inside the lower case 23 corresponding to the inside of the fixing space 25, two supporters 25 for fixing the connector 24 to be rotatable with the fixing space 25 therebetween stand. Correspondingly, two support members 29 stand at the same interval as the support member 26 inside the upper case 22, and these connectors (when the upper case 22 and the lower case 23 are integrally coupled to each other). The rotary shaft 28 located at the upper end 27 of the 24 serves to allow the connector 24 to rotate.

As shown in FIGS. 7 and 8, when the external speaker 20 is coupled to the mobile phone, the connector 24 is separated from the storage space 21 to facilitate the coupling of the mobile phone and the external speaker 20. On the other hand, when the external speaker 20 is separated from the mobile phone, the components 24 constituting the connector 24 are protected by rotating the connector 24 and storing it in the storage space 21, thereby reducing the volume of the connector 24. Will be minimized.

The external speaker configured as above is mainly used to make a phone call with the other party by amplifying the voice. In other words, an external speaker can be used mainly when you need to talk without holding your phone close to your ear, for example, when several people need to talk at the same time while driving or during a meeting.

First, in order to make a phone call with the other party using the external speaker 1, the user connects the connector 4 of the external speaker 1 to the cellular phone before or after the call line is connected to the other party as shown in FIG. Plug in. When the phone received from the other party is switched to a call state or the other party's phone number is dialed, a call line for a phone call with the other party is formed. Therefore, the user can hear the other party's voice through the external speaker 1 without holding the mobile phone close to the ear.

In addition to the caller, people around you can listen to the call. Of course, if a private and secret phone call can remove the external speaker (1) from the mobile phone can be a telephone call by a conventional method.

With the external speaker 1 mounted on the mobile phone, the LED 5 exposed to one side of the external speaker 1 is continuously turned on during a phone call with the other party, indicating that the caller is in a call state. have.

The external speaker for mobile phones according to the present invention can be used together with a mobile phone which is one of communication terminals, and is useful for amplifying the other party's voice when using a mobile phone that is currently used only for a conference or conference call. Can be.

According to the present invention, the external speaker capable of amplifying a voice for a phone call with the other party can be separated and coupled to the outside of the mobile phone, thereby making it possible to make a phone call with the other party without holding the mobile phone close to the ear.

In addition, the present invention has an effect that by amplifying a voice for a telephone call with the other party, the contents of the call with the other party can be heard by the people around the party together.

In addition, the present invention has an effect that can visually check the state of the telephone call with the other party when the external speaker is plugged into the mobile phone.

Although the present invention has been described in detail only with respect to the specific embodiments described, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims. .

Claims (6)

A pair of cases comprising an upper case and a lower case for accommodating an amplification circuit part including micro speakers and components mounted on a printed circuit board and fixing the connector; The mobile phone and the amplifying circuit part are electrically connected to each other so that the power supply, voice signal, and control signal can be transmitted between the mobile phone and the amplifying circuit part when it is fixed to be exposed to the outside of the lower case of the pair and combined with the mobile phone. Connector; An amplifying circuit section comprising components disposed on a printed circuit board to amplify a voice signal for a telephone call with a counterpart transmitted from a cellular phone through the connector; And A micro speaker fixed to an inner surface of the upper case and driven by a voice signal amplified by the amplifying circuit unit to discharge voice for a telephone call with the other party through the upper case discharge port; External speaker for a mobile phone comprising a. The method of claim 1, The driving power of the amplifying circuit unit and the micro speaker is an external speaker for a mobile phone, characterized in that supplied from a battery mounted in a mobile phone or a separate battery built in the pair of cases. The method of claim 1, And a call / standby selection line of the cellular phone is extended to a connector to select a call and standby state of the cellular phone by separating and combining the cellular phone and the external speaker. The method of claim 1, The external speaker of the external speaker further comprises a light emitting diode that is turned on while maintaining a call state by combining the mobile phone and the external speaker. The method of claim 1, The lower case is provided with a mounting hole connected to the outside of the lower case and through a cutout to mount the light emitting diode, and one side of the mounting hole can be fixed to the light emitting diode by coupling with the light emitting diode. External speaker for mobile phones, characterized in that the fixing groove is formed. The method of claim 1, An accommodating space for accommodating the connector and a fixing space for fixing the connector are formed adjacent to each other on one side of the lower case, and two supports are disposed at predetermined intervals around the fixing space in the lower case. It is formed in the form, and the two supports on the inside of the upper case to face each other with a predetermined interval to correspond to the existing support, when the upper case and the lower case is integrally combined, the support of the upper case and the lower case The external speaker for mobile phones, characterized in that the rotating shaft at the top of the connector can be fixed.