JPH08223678A - Slim speaker device - Google Patents

Abstract

(57) [Abstract] [Purpose] When a speaker device having a sealed box is arranged on the left and right front surfaces of a television receiver or the like, the speaker device has a small width and has a mounting structure without the sealed box. Common with a single unit. [Structure] A slim speaker 1 having an air circulation hole 1d only on a surface of a speaker frame 1a facing a diaphragm surface and a mounting screw hole 1b on a flange surface, and the air circulation hole on an end surface abutting the speaker frame 1a. 1d and an air circulation hole 2b corresponding thereto are provided, and a closed box 2 having a short side dimension C of the end face equal to or smaller than a short side dimension A of the slim speaker is integrated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker device incorporated in a television receiver, a monitor television or the like, and its mounting structure.

[0002]

2. Description of the Related Art In recent television receivers and the like, speaker devices are arranged on the left and right of a cathode ray tube for stereo broadcasting. Further, a closed box type or the like is also used as a means for improving the sound quality in the speaker device. In a configuration in which speaker devices are arranged on the left and right sides of a cathode ray tube, using a round speaker increases the width dimension of the television receiver. In order to reduce the width dimension, an elliptical or track type narrow slim speaker is used.
Alternatively, Japanese Utility Model Publication No. 63-108273 and Japanese Utility Model Publication 2-1.
As proposed in Japanese Patent Publication No. 20976 or the like, there has been proposed a configuration in which a round or wide speaker is arranged behind a cathode ray tube and a sound conduit is used to guide sound to the front surface of the cabinet.

[0003]

However, in the case of the method of arranging the speaker behind the cathode ray tube, the resonance of the sound by the sound conduit occurs and it is difficult to completely remove it. Furthermore, the structure is complicated and costly in order to obtain high-level sound quality performance. Further, in the conventional speaker device including the closed box, the outer size of the closed box is inevitably larger than that of the speaker. The reason is as shown in FIG.
This is because the speaker main body is inserted and stored through the opening of the closed box, and the flange portion (collar portion) of the speaker is attached and fixed to the opening surface of the box. Further, even when a slim speaker having a narrow width and a long length is used, the width dimension of the closed box does not become smaller than the width dimension of the slim speaker.

Further, when the speaker device is mounted in a cabinet such as a television receiver, the mounting structure is completely different between a case where a speaker unit without a speaker box is directly mounted and a case where a speaker device having a closed box is mounted. different. Therefore, the same cabinet cannot be shared by the direct-mounting type speaker and the closed box type speaker, so that the number of types of cabinets corresponding to each product increases, the management becomes troublesome, and the cost increases.

The present invention is intended to solve the above problems, and provides an elliptical or track type slim speaker having an external aspect ratio of at least 2: 1 (vertical 2: horizontal 1) as viewed from the front. An object of the present invention is to provide a slim speaker device with high sound quality performance by combining and integrating with a closed box, and to make the mounting structure to a cabinet common to a speaker device (speaker unit) without a closed box.

Further, it is another object of the present invention to provide a structure in which the direct mounting type speaker and the closed box type speaker device are mounted in common when mounting them in a cabinet such as a television receiver.

[0007]

In order to solve the above-mentioned problems, the slim speaker device of the present invention has a speaker frame facing the diaphragm surface while having a vertical / horizontal dimension ratio of the outer shape as viewed from the front of 2: 1 or more. A slim speaker having an air circulation hole only on the surface, and an air circulation hole corresponding to the air circulation hole is provided on the end face that contacts the speaker frame, and the short side dimension of the end face is the short side of the slim speaker. It is configured to be integrated with a closed box having a size equal to or smaller than the size. Further, a mounting hole is provided on the peripheral flange portion of the slim speaker so that it can be mounted on a cabinet such as a television receiver.

[0008]

Since the front surface (end surface) of the closed box is brought into contact with the speaker frame surface on the rear surface of the slim speaker, the shape and size of the front surface (end surface) can be arbitrarily set regardless of the outer size of the slim speaker. Further, the air circulation holes provided in the closed box and the speaker frame can be formed substantially the same, and the rigidity (mechanical strength) of the closed box can be sufficiently maintained. Furthermore, the mounting structure to the cabinet can be shared with the speaker alone, and the number of cabinets can be reduced.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A slim speaker device according to an embodiment of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a perspective view showing a process of mounting a slim speaker device 10 in a first embodiment of the present invention on a cabinet 3 of a television receiver. In the figure, reference numeral 1 is an elliptical or track type slim speaker, and the aspect ratio of the external dimensions when viewed from the front is 2: 1 (vertical 2: horizontal 1) or more. Reference numeral 2 is a closed box, 3 is a cabinet constituting a television receiver, and 4 is a slim speaker device 10.
2 shows a screw for fastening the cabinet 3 to the cabinet 3.

FIG. 2 is a rear perspective view of the slim speaker 1,
The perspective view of the airtight box 2 seen from the fastening surface side is shown. In the figure, reference numeral 1a is a speaker frame located at the rear part of the slim speaker and facing the diaphragm surface, 1b is a slim speaker mounting hole provided in a flange portion around the slim speaker, 1c is a screw hole for mounting a closed box, and 1d. Is an air circulation hole of the slim speaker, 1e is a magnet of the slim speaker, and 1f is a side surface of the speaker frame. A is the horizontal dimension of the slim speaker, and B is the vertical dimension. 2a
Corresponds to one end surface of the closed box, a speaker mounting surface that abuts the speaker frame 1a, 2b is an air circulation hole of a closed box provided at a position corresponding to the air circulation hole 1d of the slim speaker 1, 2c is a slim speaker 1 2d is a recess for accommodating the magnet 1e, and 2e is a back lid of the hermetic box. The slim speaker 1 and the closed box 2 are integrated by an adhesive means, a screw fastening, or the like. In the case of FIG. 2, the structure in screw fastening is shown.

In the case of the conventional loudspeaker device shown in FIG. 4, the loudspeaker 4 is inserted into the opening 43 provided in the front portion of the closed box 42.
The main body portion 41 of No. 0 is inserted and screw-fastened through the mounting hole 44. Therefore, the opening edge size of the speaker mounting surface, that is, the size of F is the closed box 42.
Must be dimensioned to ensure the strength of As a result, the outer dimensions of the closed box 42 have to be larger than the outer dimensions of the speaker 40 by a predetermined amount. That is, at least the external vertical dimension of the closed box 42 has to be larger than the external vertical dimension of the speaker 40 by a predetermined amount.

On the other hand, in the case of the slim speaker device of the present invention, the slim box 1 is provided with the closed box 2 at the rear portion thereof, and the slim speaker mounting surface 2 is provided.
The conventional opening (hole) as shown in FIG. 4 is not required in a. That is, the air circulation hole 2b having a size corresponding to the air circulation hole 1d of the slim speaker 1 may be provided. As a result, the lateral width dimension C of the slim speaker mounting surface of the closed box 2 can be made smaller than the external lateral width dimension A of the slim speaker 1.

In general, slim speakers are also provided with air circulation holes on the frame side surface 1f. However, in the slim speaker 1 of the present invention, the air circulation hole is not provided in the frame side surface 1f, and the air circulation hole is provided only in the frame surface 1a. The slim speaker 1 and the closed box 2 are coupled to each other by fastening a screw into the screw hole 1c of the slim speaker 1 through the mounting hole 2c with the back cover 2e of the closed box 2 removed. In the embodiment of FIGS. 1 and 2,
The width C of the slim speaker mounting surface of the closed box 2 and the width A of the slim speaker 1 are the same or C is smaller than A. The vertical dimension D of the closed box 2 is smaller than the vertical dimension B of the slim speaker 1 by a predetermined amount (for example, smaller than at least 10 mm). With this configuration, the slim speaker device 10 of the present invention can be fastened and fixed to the cabinet 3 using the mounting holes 1b and the screws 4. (See FIG. 1) As described above, the configuration of mounting the slim speaker device 10 of the present invention to the cabinet 3 is similar to the conventional mounting structure of the slim speaker alone, and the mounting hole of the flange portion provided at the periphery of the slim speaker is utilized. It is configured to do.

(Embodiment 2) FIG. 3 is an external perspective view of a slim speaker device 20 according to a second embodiment of the present invention.
In this case, the width of the slim speaker is substantially the same as the width of the closed box on the side where the slim speaker is attached, and the vertical dimension E of the closed box is larger than the vertical dimension B of the slim speaker. The configuration shown in FIG. 3 is intended to cope with a case where it is desired to increase the volume of the closed box or a case where a bass reflex port or the like is provided on the front surface. That is, in order to increase the volume, the vertical dimension E of the closed box is set to be larger than the external dimension B of the slim speaker, contrary to the first embodiment.

Fastening a slim speaker and a closed box,
The fixing uses the mounting hole 1b of the peripheral flange portion of the slim speaker. Of course, it goes without saying that an adhesive means may be used. As means for attaching the slim speaker device 20 to the cabinet, mounting flanges are formed at the top and bottom of the closed box body, or a screw (tap hole) for attachment is provided at the end of the closed box on the slim speaker mounting surface side. It may be implemented arbitrarily, such as by providing it.

[0016]

As described above, according to the slim speaker device of the present invention, it is possible to provide a slim speaker device in which the lateral width dimension of the slim speaker mounting surface portion of the closed box is not larger than the outer lateral width dimension of the slim speaker. As a result, the mounting structure of the slim speaker device having the closed box and the slim speaker unit can be made to have the same size, and the cabinet such as the television receiver can be shared. Further, it is possible to provide a television receiver or the like which has a small width and is rich in design and has excellent product developability.

[Brief description of drawings]

FIG. 1 is a perspective view of a procedure for mounting a slim speaker device in a cabinet according to a first embodiment of the present invention.

FIG. 2 is a rear perspective view of the slim speaker according to the first embodiment of the present invention and a perspective view of the closed box as seen from the fastening surface side.

FIG. 3 is a perspective view of a slim speaker device according to a second embodiment of the present invention.

FIG. 4 is a perspective view showing the configuration of a conventional speaker device.

[Explanation of symbols]

 1 Slim Speaker 2 Sealed Box 3 Cabinet 4 Screw 1a Speaker Frame 1b Mounting Hole 1c Screw Hole 1d Speaker Air Circulation Hole 1e Magnet 1f Frame Side 2a Speaker Mounting Surface 2b Sealed Box Air Circulation Hole 2c Mounting Hole 2d Recess 2e Back Cover 10, 20 slim speaker

Claims (11)

[Claims] 1. A speaker having an air circulation hole only on a speaker frame surface facing a diaphragm surface, and an air circulation hole corresponding to the air circulation hole is provided on an end surface contacting the speaker frame. A speaker device, characterized in that a closed box having a dimension of a short side of an end face equal to or smaller than a short side dimension of the speaker is integrated. 2. The speaker device according to claim 1, wherein the speaker is an elliptical type or a track type. 3. The speaker device according to claim 2, wherein the speaker and the closed box are integrated with each other by screwing or adhering. 4. The speaker device according to claim 3, wherein a mounting hole is provided on a peripheral flange portion of the speaker so that the speaker can be mounted on the cabinet. 5. A slim speaker having a vertical-horizontal dimension ratio of 2: 1 or more when viewed from the front and having an air circulation hole only in a speaker frame surface facing the diaphragm surface, and abutting the speaker frame. An air circulation hole corresponding to the air circulation hole is disposed on the end face, and a closed box having a short side dimension of the end face equal to or smaller than the short side dimension of the slim speaker is integrated. And slim speaker device. 6. The slim speaker device according to claim 5, wherein the slim speaker is an elliptical type or a track type. 7. The slim speaker device according to claim 6, wherein the slim speaker and the closed box are integrated by screwing or adhering. 8. The slim speaker device according to claim 7, wherein a mounting hole is provided in a peripheral flange portion of the slim speaker so that the slim speaker can be mounted in a cabinet. 9. The aspect ratio of the outer shape as viewed from the front is 2: 1.
In addition to the above, a slim speaker provided with an air circulation hole only in the speaker frame surface facing the diaphragm surface, and an air circulation hole corresponding to the air circulation hole in the end surface abutting the speaker frame, A sealed box having a dimension of a short side of the end face equal to or less than a short side dimension of the slim speaker, and the slim speaker is inserted into the end face recess of the sealed box and integrated. Characteristic slim speaker device. 10. The slim speaker device according to claim 9, wherein the slim speaker is an elliptical type or a track type. 11. The slim speaker device according to claim 10, wherein the slim speaker and the closed box are integrated with each other by screwing or adhering.