JPH10234099A - Speaker system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the speaker system in which unattractive appearance of the speaker system used for a domestic radio network system or the like and poor productivity due to a complicated structure are avoided. SOLUTION: The speaker equipment 11 is made up of a diaphragm 2 fitted in vibration free to a frame 4 fixed to a case 9 and an electro vibrating transducer 3 placed on the frame 4. An antenna pattern 15 made of a conductor is formed on the diaphragm 2. A reception circuit 7 is connected electrically to the antenna pattern 15 via a feeder 6, an amplifier circuit 8 is connected electrically to the reception circuit 7, the amplifier circuit 8 is connected electrically to the electro vibrating transducer 3 and the diaphragm 2 is driven by the electro vibrating transducer 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker device used in a home wireless network system for wirelessly connecting home electric appliances such as audio / video equipment, and more particularly, to forming an antenna integrally with the speaker device. Accordingly, the present invention relates to a speaker device which improves design and productivity.

[0002]

2. Description of the Related Art In recent years, wireless home network systems have been proposed. This home wireless network system improves user convenience by wirelessly connecting various home appliances including audio / video devices, which were conventionally connected by wire. It is. A speaker device used in such a home wireless network system is realized by, for example, a configuration as shown in FIG.

An example of a speaker device used in a home wireless network system will be described as a conventional speaker device with reference to FIG. 2A and 2B are views showing a conventional speaker device, wherein FIG. 2A is a front view thereof, and FIG. 2B is a side sectional view thereof.

In the speaker device 1 of the prior art, the diaphragm 2 is attached to the frame 4 so as to be able to vibrate to some extent. An electric vibration converter 3 is provided on the frame 4 as shown in the figure. The frame 4 is fixed to a housing 9 made of a plate material or the like. With this configuration, a basic function as a speaker device that emits sound from an audio signal is achieved.

On the other hand, a helical antenna 5 is provided outside the housing 9, and the output of the helical antenna 5 is electrically connected to a receiving circuit 7 provided inside the housing 9 via a feeder line 6. It is connected to the. The receiving circuit 7 is connected to an amplifier circuit 8, and the amplifier circuit 8 is electrically connected to the electric vibration conversion device 3.

The prior art speaker apparatus 1 configured as described above operates as follows. That is, a radio signal emitted from an audio device such as a compact disk (CD) player having a wireless function is received by the helical antenna 5 and converted into a high-frequency signal. This high-frequency signal passes through the feeder line 6 and is input to the receiving circuit 7.

The receiving circuit 7 demodulates the input high-frequency signal into an audio signal (low-frequency signal), and amplifies the demodulated signal at an amplifier circuit 8 at the next stage. The audio signal amplified by the amplifier circuit 8 is converted into mechanical vibration by the electric vibration conversion device 3, and the diaphragm 2 is driven to generate sound.

However, the prior art speaker device 1
In this case, for example, since the helical antenna 5 needs to be disposed so as to protrude out of the speaker housing 9, there is a problem that the appearance is poor and the external appearance is spoiled. Further, also in the manufacture of the speaker device, the helical antenna 5 and the frame 4 manufactured individually are fixed to the housing 9 individually.
In addition, these must be connected inside the housing 9, and there is a problem that the production process is complicated and the production efficiency of the speaker device is reduced.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the problem is that a speaker device used in a home wireless network system or the like has a poor appearance and a complicated structure. Accordingly, it is an object of the present invention to provide a speaker device which solves the problem of poor productivity, improves appearance, and improves production efficiency.

[0010]

In order to solve the above-mentioned problems of the present invention, the following means have been taken. That is, as a basic configuration of the speaker device according to the first aspect of the present invention,
A housing, a frame fixed to the housing, an electric vibration conversion unit disposed on the frame, and a diaphragm held in a swingable state by the frame, wherein the vibration plate is In a speaker device for generating sound by vibrating, an antenna pattern made of a conductor is formed at a predetermined position on a diaphragm.

As a specific embodiment, the speaker device according to the second aspect of the present invention is configured such that a feeder line is electrically connected to the antenna pattern, and the feeder line has a receiving circuit for demodulating a radio signal received by the antenna pattern. Electrical connection,
The receiving circuit is electrically connected to an amplifier circuit for amplifying the demodulated audio signal, and the amplifier circuit is electrically connected to electric vibration conversion means for converting the amplified audio signal into mechanical vibration. Is desirable.

In the speaker device according to the present invention, an antenna pattern made of a conductive material is formed on the diaphragm, and a radio signal emitted from an audio device such as a compact disk (CD) player having a wireless function is transmitted to the antenna pattern. To receive it. This eliminates the need to provide an antenna outside the housing,
The external appearance of the speaker device can be improved.
Further, in the speaker device of the present invention, since the antenna is integrally formed with the speaker device, the structure of the speaker device including the antenna can be simplified, and the productivity of the speaker device can be improved.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

First, the configuration of the speaker device of the present invention used in a home wireless network system or the like will be described with reference to FIG. 1A and 1B are views showing a speaker device of the present invention, wherein FIG. 1A is a front view thereof, and FIG. 1B is a side sectional view thereof. Note that portions common to those described in the related art are denoted by the same reference numerals.

In the speaker device 11 of the present invention as shown in FIG. 1, the diaphragm 2 is attached to the frame 4 so as to be able to vibrate to some extent. In frame 4,
An electric vibration conversion device 3 including a magnet, an external magnet type magnetic circuit and an induction coil (all not shown) is provided as shown in the figure, and the vibration plate 2 is driven by the electric vibration conversion device 3. ing. The frame 4 is fixed to a housing 9 made of a plate material or the like. With such a structure, a basic function as a speaker device that emits sound from an audio signal is achieved.

An antenna pattern 15 made of a conductive material is formed on the diaphragm 2 as a feature of the present invention. The antenna pattern 15 is formed by applying a conductive material using a screen on which a desired pattern is formed, for example.
It is formed by a dry screen printing method. The receiving circuit 7 is fixed to the frame 4, and the antenna pattern 15 is electrically connected to the receiving circuit 7 via the feed line 6. The receiving circuit 7 is electrically connected to an amplifier circuit 8, and the amplifier circuit 8 is electrically connected to the electric vibration conversion device 3.

Next, the operation of the speaker device of the present invention thus configured will be described.

As an example, a radio signal emitted from an audio device such as a compact disk (CD) player having a wireless function is received by the antenna pattern 15 and converted into a high-frequency signal. This high frequency signal is
The signal passes through the feed line 6 and is input to the receiving circuit 7. The receiving circuit 7 demodulates the input high-frequency signal into an audio signal (low-frequency signal), and amplifies the demodulated signal at the next-stage amplifier circuit 8. The audio signal amplified by the amplifier circuit 8 is converted into mechanical vibration by the electric vibration conversion device 3, and the diaphragm 2 is driven to generate sound.

As described above, according to the speaker device 11 of the present invention, since the antenna pattern 15 is formed on the diaphragm 2, there is no need to dispose an antenna outside the housing 9. The aesthetics above will not be lost.

Further, according to the speaker device of the present invention, the main components such as the antenna pattern 15, the feed line 6 connected to the antenna pattern 15, the receiving circuit 7 and the amplifier circuit 8 are all arranged on the frame 4. Therefore, even in the manufacturing process of the speaker device, the frame 4
Is simply fixed to the housing 9, and a complicated manufacturing process can be omitted. As a result, it is possible to eliminate the poor appearance of the speaker device used in the home wireless network system and the like, and to realize a speaker device excellent in productivity.

The speaker device 11 of the present invention is an example of a design, and the overall shape and arrangement may be other designs. Also, antenna pattern 1
It goes without saying that the same effect as described above can be obtained by electrically connecting the power supply line 5 and the receiving circuit 7 by non-contact power supply means (not shown) instead of the power supply line 6.

The present invention is not limited to the above embodiment,
Various embodiments can be employed. In the above embodiment, the speaker device used in the home wireless network system has been exemplified. However, the present invention is not limited to this, and the in-vehicle audio device (car stereo) having a predetermined wireless function is provided.
The present invention can be applied to a wireless headphone stereo, a wireless monitor device (such as a liquid crystal television, an eyeglass-type monitor device, and a wall-mounted television to be developed in the future), a wireless LAN, and the like, in addition to a cordless telephone. Further, as an embodiment thereof, an antenna formed on a diaphragm can be applied to a dipole antenna, a loop antenna, a spiral antenna, a zigzag antenna, and the like.
Furthermore, by forming the antenna pattern in a three-dimensional configuration, application to a pole antenna or a helical antenna is possible, and the present invention is not limited to the type and configuration of the antenna device. Further, it goes without saying that the present invention can be developed in various forms without being limited to the embodiment described above.

[0023]

As is apparent from the above description, according to the speaker device of the present invention, an antenna pattern made of a conductor is formed on a diaphragm, and the antenna pattern is used as an example to provide a wireless device having a wireless function. Since the emitted radio signal is received, a speaker device used in a home wireless network system or the like can be realized without deteriorating the external appearance. Further, in the speaker device of the present invention, since the antenna is formed integrally with the speaker device, the manufacturing process of the speaker device provided with the antenna can be simplified, and the productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing a speaker device of the present invention;
(A) is the front view, (b) is the side sectional view.

FIG. 2 is a diagram showing a conventional speaker device;
(A) is the front view, (b) is the side sectional view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Conventional speaker device, 2 ... Vibration plate, 3 ... Electric vibration conversion device, 4 ... Frame, 5 ... Helical antenna, 6
... feeding line, 7 ... receiving circuit, 8 ... amplifying circuit, 9 ... housing, 1
1 ... speaker device of the present invention, 15 ... antenna pattern

Claims (4)

[Claims] An electric vibration converting means disposed on the frame; a vibration plate slidably held by the frame; A speaker device for generating sound by vibrating the diaphragm by vibration conversion means, wherein an antenna pattern made of a conductor is formed on the diaphragm. 2. A power supply line is connected to the antenna pattern, a receiving circuit for demodulating a radio signal received by the antenna pattern is connected to the power supply line, and a demodulated audio signal is supplied to the reception circuit. The speaker device according to claim 1, wherein an amplification circuit for amplification is connected, and an electric vibration conversion unit that converts the amplified audio signal into mechanical vibration is connected to the amplification circuit. 3. The speaker device according to claim 1, wherein the antenna pattern is formed in a sheet shape by applying and drying a desired pattern of a conductive material. 4. The speaker device according to claim 1, wherein the speaker device is used in a home wireless network system for connecting home appliances wirelessly.