JPH04107977U - Speaker device for TV receiver - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a speaker device used in a TV receiver, and in particular uses a speaker whose directivity main axis is tilted relative to the reference axis of the speaker. This invention relates to a speaker device for a TV receiver, which provides a good diffusion state of sound from the TV receiver in a reproduced sound field and allows viewers to listen to broadcast sound with excellent tone.

[Prior Art] The typical structure of conventional speaker devices for TV receivers is well known as the simplest structure, which is a structure in which ordinary speakers are mounted with cathode ray tubes sandwiched between the left and right sides of the front of a TV cabinet, or As shown in FIG. 5, the speakers 120 and 130 may be mounted on the left and right sides of the TV cabinet 110, on both sides of the cathode ray tube 140, with their mounting surfaces facing outward, or with separate reflective speakers. There is a structure provided with a plate (not shown), etc.

[Problem to be solved] In the case of the former speaker device, the conventional speaker device with this kind of structure has a reference axis perpendicular to the mounting surface and a directional main axis that indicates the center direction of the directional characteristics. are the same and each is T
Because the V-receiver faced the front, and the directivity became sharper as the frequency increased, the sound image was concentrated in the center even though it was stereo, and lacked a sense of spaciousness. Furthermore, although the structure shown in FIG. 5 improves the sense of spaciousness, it not only complicates the structure and increases the manufacturing cost, but also imposes constraints on the design, which are problems that need to be solved.

Therefore, the present invention aims to solve the above-mentioned problems of the conventional example by using a speaker having a simple structure and special directivity.

[Means for solving the problem] T related to the present invention to achieve the above purpose
To explain a speaker device for a V-receiver using FIGS. 1 and 2 showing an embodiment, the present invention has a plurality of speakers 1, 1', etc., at least two for each stereo channel, for TV reception. In the TV receiver speaker system installed above and on the left and right sides of device 3, speakers 1 and 1' are cone-shaped speakers driven by voice coils at positions offset from the geometric center of the diaphragm. Therefore, the directivity main axis DA of the speaker 1, which is arranged near the center of the TV receiver 3 among the left and right speakers, is closer to the TV receiver 3.
T
Speaker 1' placed outside the V receiver 3
This is a speaker device for a TV receiver characterized in that the directivity main axis DA' is arranged so as to face outward with respect to the central axis of the TV receiver 3. The second embodiment is characterized in that the speakers 1 and 1' are mounted on the upper left and right sides of the front panel of the main body cabinet of the TV receiver 3. A separate flat cabinet 4
It is characterized in that it is attached to the front left and right sides of the TV receiver 3 and placed on the upper surface of the TV receiver 3.

[Function] The above-mentioned speakers 1 and 1' having the structure shown in FIG. 2 are commonly called "oblicone speakers", and are cone-shaped speakers in which a voice coil 20 drives a position offset from the geometric center of the diaphragm 10. As shown in Figure 3, its directivity characteristics are relatively broad in the major axis direction with respect to the speaker's reference axis RA (the axis perpendicular to the speaker mounting surface) at the voice coil position, while it is relatively broad in the minor axis direction. is relatively sharp and asymmetrical in the direction in which the voice coil is biased, and the central axis of the directivity pattern, that is, the directivity principal axis DA, substantially forms a certain angle (α) with respect to the reference axis RA, and the speaker Slanted to the mounting surface. Therefore, even if the mounting surfaces of the speakers 1 and 1' are mounted directly on the front panel 3a of the TV receiver as in the conventional case, the respective directivity axes DA and DA' are arranged radially, so that the reproduced sound can be reproduced even though the structure is simple. The feeling of expansion is improved.

[Embodiment] A first embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2. Reference numeral 3 denotes a TV receiver, and 2 are installed on the upper left and right sides of the cathode ray tube 2 on the front panel 3a of the main body cabinet.
Speakers 1 and 1' are installed individually. The speakers 1 and 1' are oblicorn type speakers, as shown in the cross-sectional structure in FIG. 50
A magnetic circuit 60 is attached to the bottom of the frame 50 at an offset position corresponding to the voice coil 20. The structure of these magnetic circuits 60 and the mutual relationship between the magnetic circuits 60 and the voice coil 20 are the same as those of conventional speakers.

The speakers 1 and 1' having the above-described structure are arranged so that their major diameters are in the horizontal direction, and the directivity main axis DA of the speaker 1 is arranged near the center of the TV receiver 3.
The directivity main axis DA' of the speaker 1', which is attached to the front plate 3a so as to face the central axis direction of the TV receiver 3 and is disposed toward the outside of the TV receiver 3, is directed toward the center axis of the TV receiver 3.
It is attached to the front plate 3a so as to face outward with respect to the central axis of the image receiver 3.

Figure 4 shows a second embodiment of the present invention, in which the speaker mounting portion is separated from the TV receiver body, and the directivity main axes of the speakers 1 and 1' maintain the relationship explained in the first embodiment. In this way, it is attached to the front left and right sides of a flat cabinet 4 that is separate from the main cabinet of the TV receiver 3, and is placed on the upper surface of the TV receiver 3.

In this second embodiment, although the outer speaker 1' is mounted with its mounting surface facing slightly outward, the state of sound diffusion is improved. However, as in the first embodiment, the effects of the present invention can be obtained even if all the speakers are mounted facing forward.

Above, the speaker device for a TV receiver according to the present invention has been described in detail based on an embodiment considered to be representative, but the embodiment of the speaker device according to the present invention is not limited to the structure of the above embodiment. As long as the invention has the constituent elements described in the claims described above, exhibits the functions of the present invention, and has the effects described below, it can be implemented with appropriate modifications.

[Effect] In the speaker device for a TV receiver according to the present invention, the directivity main axis of the speaker used is biased with respect to the speaker mounting surface, and the directivity main axes of the plurality of attached speakers are arranged in a radial shape. Even if the mounting method is simple and similar to the conventional example, the reproduced sound will be sufficiently diffused.

Therefore, the effect is that the sense of spaciousness and the localization of the sound image are improved without spending unnecessary expenses on the cabinet structure or the like.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the first embodiment of the present invention, Fig. 2 is a sectional view of the speaker, Fig. 3 is a directional characteristic diagram of the speaker, Fig. 4 is a perspective view of the second embodiment, and Fig. 5 is a sectional view of the speaker. It is a top sectional view of a conventional example. 1 and 1' are speakers, 2 is a cathode ray tube, 3 is a TV receiver, and 4 is a cabinet.

Claims (3)

[Scope of utility model registration request] [Claim 1] In a speaker device for a TV receiver, a plurality of speakers 1, 1', at least two for each of the left and right channels, are arranged above and on the left and right sides of the TV receiver 3. , the above-mentioned speakers 1, 1'... are cone-shaped speakers driven by voice coils at positions offset from the geometric center of the diaphragm, and among these speakers arranged on the left and right, the speakers 1, 1'... The directivity main axis DA of speaker 1, which is placed near the center, is both connected to the TV.
The directivity main axis DA' of the speaker 1', which is arranged so as to face the central axis direction of the TV receiver 3, and which is disposed on the outside of the TV receiver 3, is arranged so as to face the central axis direction of the TV receiver 3. A speaker device for a TV receiver, characterized in that the speaker device is arranged so as to face the speaker. 2. The TV according to claim 1, wherein each of the speakers 1 and 1' is attached to the upper left and right sides of the front panel of the main cabinet of the TV receiver 3.
Speaker device for television receiver. [Claim 3] Each of the above-mentioned speakers 1 and 1' is mounted on the front left and right sides of a flat cabinet 4 that is separate from the main cabinet of the TV receiver 3, and is placed on the upper surface of the TV receiver 3. Claim 1
The speaker device for a TV receiver described above.