JPS5932959B2 - speaker system - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a multi-way speaker system in which several speakers are assembled into a cabinet, and even if each speaker is installed on the same surface by making improvements to each speaker, the phase difference at the listening position remains the same. The aim is to provide a complete set of information.

A conventional speaker system in which wavefront phases are aligned by sound source matching has been constructed as shown in FIG.

That is, the bass speaker 2 on the front of the cabinet 1,
The mounting positions of the midrange speaker 3 and the treble speaker 4 were shifted to match the sound source position, which is said to be near the junction of the diaphragm and the voice coil.

In other words, the large-diameter bass speaker 2 is installed at the part that protrudes most to the front because the depth of the diaphragm is the largest, followed by the mid-range speaker 3, and the treble speaker 4 at the most recessed position.
was installed to match the sound source position.

For this reason, the cabinet 1 has a stepped shape, which is very time-consuming to manufacture, which is disadvantageous in terms of cost.Also, since the treble speaker 4 is generally installed at the top, the ceiling of the cabinet 1 This has the disadvantage that the area of the cabinet 1 is small, and it is not possible to place items on the cabinet 1, making it difficult to make effective use of space in the home.

The present invention eliminates the drawbacks of the prior art as described above.

Embodiments of the present invention will be described below with reference to FIGS. 2 and 3.

First, in FIG. 2, 5 is a cabinet, and a bass speaker 6, a medium speaker 7, and a treble speaker 8 are attached to the front surface of the cabinet 5.

The front recess of the cone-shaped diaphragm of the bass speaker 6 and the front recess of the cone-shaped diaphragm of the medium-range speaker 7 are filled with fillers 9 and 10.

The fillers 9 and 10 may be made of the same material or different materials, but in any case, the fillers 9 and 10 may be made of the same material or different materials.
No. 10 uses a material in which the sound propagation velocity indicated by V14- (E is Young's modulus, ρ is density) is greater than about 340 m/sec of air.

FIG. 3 shows an example of the bass speaker 6 or the medium speaker 7.

11 is a magnetic circuit, and this magnetic circuit 11 includes a plate 13 having a center pole 12, and a ring-shaped magnet 14.
A frame 16 is connected to the magnetic circuit 11, and the peripheral edge of a cone-shaped diaphragm 18 is adhesively bonded to the peripheral edge of the frame 16 together with a gasket 17. A voice coil 19 is coupled to the center of the diaphragm 18, and the middle portion of the voice coil 19 is held by a damper 20, and fits into the magnetic gap 21 of the magnetic circuit 11 without being eccentric. A filler material 9 or 10 is filled in the front recessed part of.

As this filler 9 or 10, V such as foamed light metal is used.
By using a Sugiho dog and adjusting its filling amount, the sound source positions of the bass speaker 6 and medium sound speaker 7 can be matched to the sound source position of the high sound speaker 8.

In this case, if the same filling material is used, the medium sound speaker 7
The amount of filler 10 applied to the bass speaker 6 is smaller than the amount of filler 9 applied to the bass speaker 6.

Since the speaker system of the present invention is configured as described above, the cabinet may be a simple rectangular parallelepiped, making it easy to manufacture and highly productive, reducing costs. Since the position can be on the same surface, it is easy to set up, and the phases can be perfectly aligned.The ceiling surface of the cabinet is also wide, allowing for items to be placed on it, making it an effective use of space in a general household. It is a dog of industrial value.

[Brief explanation of drawings]

Fig. 1 is a schematic configuration diagram showing a conventional speaker system, Fig. 2 is a schematic configuration diagram showing an embodiment of the speaker system of the present invention, and Fig. 3 is a cross section showing an embodiment of the speaker used in the same system. It is a diagram. 5...Cabinet, 6...Bass speaker, 7...Middle tone speaker, 8...
・Treble speaker, 9.10...Filling material, 11
...Magnetic circuit, 16...Frame, 1
8...Diaphragm, 19...Voice coil, 21...Magnetic gap.

Claims (1)

[Claims] 1. In a speaker system configured by incorporating a bass speaker, a mid-range speaker, a treble speaker, or a bass speaker and a mid-treble speaker in a cabinet, the front side of the cone-shaped diaphragm of the bass speaker A speaker system characterized in that a concave portion is filled with a filler material having a higher sound propagation speed than air to match the sound source position of a high-frequency speaker.