JPH01152899

Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPH01152899
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
upper cabinet for AV, in particular, when audio equipment or a thin wall-mounted television or
the like is housed in a case integrally incorporating a thin flat speaker with a reduced depth size.
The present invention relates to a flat speaker body type AV cabinet suitable for use in the
present invention. [Background Art and Problems] Conventionally, horn type and cone type are
known as speaker systems, but the former horn type speaker has a depth dimension
corresponding to the length of the horn (dimension from the opening of the horn to the rear)
However, although the latter cone type speaker can be made to have a small depth size, in order
to eliminate the influence of the negative phase component generated from the back side of the
cone, the area or more of a predetermined area or While an enclosure having a volume is
required and the overall size increases, there are problems such as an obstacle to hi-fi
regeneration from the structural aspect. In addition, although a planar speaker in which the edge
portion of the diaphragm of the speaker is separated from the baffle plate has also been
announced, it is easy to dissipate from the sound wave snaking point, and there is a problem of
low reproduction sound quality. Therefore, the present applicant has previously provided a "flat
speaker" (Japanese Patent Application No. 62-184238). By focusing on the structural feature of
the flat loudspeaker that the depth dimension described above is small, it is conceivable to
expand the application of the flat loudspeaker. That is, in the recent AV era, for example, a
system in which the flat speaker and the audio equipment are combined, or the flat speaker and
an image monitor (for example, a thin liquid crystal television) are combined and integrated.
Providing for use as wall hangings in the room also meets user needs. In this case, in order to
combine and integrate the flat speaker and the audio device or the image monitor, it is necessary
to have a thin cabinet with a small depth size that can accommodate the various devices.
However, this type of cabinet has not been provided as the thin flat loudspeakers described
01-05-2019
1
above have been developed. The present invention has been proposed in view of the abovementioned circumstances, and is a flat surface which can accommodate audio devices, thin wallmounted television, etc. in a case integrally incorporating a thin flat speaker with reduced depth
dimension. The purpose is to provide a speaker type AV cabinet. [Means for Solving the
Problems] In order to achieve the above object, according to the present invention, there is
provided a case having an open front and a thin depth dimension, and one side of the case in the
width direction. A first speaker housing formed by a top plate, a bottom plate and a side plate of
the case; and a second speaker provided on the other side in the width direction of the case and
formed by the top plate, the bottom plate and the side plate of the case A speaker housing
portion, a pair of flat speaker systems integrally incorporated in each of the first and second
speaker housing portions, a top plate and a bottom plate of the housing, and the pair of flat
speaker systems facing each other And a device storage section formed by the side wall.
According to the present invention, according to the present invention, the audio equipment or
the image monitor is accommodated in the device accommodating portion formed between the
pair of speaker accommodating portions of the case integrally incorporating the pair of flat
speaker systems. Thus, the flat speaker and each device can be integrated in a compact manner.
This makes it possible to produce an extremely good acoustic effect, and since it is thin, it can be
used in a wall-mounted state, which is optimum as an indoor interior. Embodiments of the
present invention will be described below with reference to the drawings. (1) First Embodiment
FIGS. 1 (a), (b), and 2 are diagrams showing the configuration of the first embodiment, and the
symbol l in the figure is a flat speaker type AV cabinet (hereinafter referred to as a speaker) Body
cabinet and abbreviation). The speaker type cabinet l is formed of a top plate IA, a bottom plate
IB, both side plates IC and IC, a partition plate ID-ID, and a back plate IE, and is thin with an open
front and a depth dimension of, for example, about 40 mm. It is a flat rectangular parallelepiped
case. The speaker type cabinet 1 is composed of a main body 2 and a pair of thin flat speaker
systems 3 and 3 having a depth of, for example, about 40 mm, which are integrally incorporated
in the main body 2. The main body 2 includes a pair of speaker storage units 2A and 2A and a
device storage unit 2B. The speaker storage portions 2A and 2A are respectively disposed on
both sides of the main body, and the flat speaker systems 3 and 3 are integrally incorporated and
stored therein. The device storage unit 2B is a space formed by the top plate IA, the bottom plate
ll31 and the back plate IE, in which an audio monitor to be described later or an image monitor
such as a thin television is stored. It has become so. In this case, the dimensions of the two hightone speakers 16 and 16 (left and right direction in the figure) fixed in the center of the flat
speaker systems 3 and 3 incorporated in the speaker housing f12A and 2A, respectively, The
ratio of the storage portion 2B to the dimension in the horizontal direction (left and right
direction in the drawing) is set so that the characteristics of the flat speaker systems 3 and 3
become optimal. The flat speaker systems 3 and 3 will be described. In the figure, 4 is a
diaphragm, and both sides are formed in a curved shape, and a central portion is formed in a flat
shape, and both sides of the curved plate 5 It is comprised from the plane board 6 fixed to the
01-05-2019
2
part. The horizontal rib 7, the horizontal rib 8 and the vertical rib 9 are fixed to the curved plate
5 so as to form a lattice as a whole.
Further, between the outer periphery of the diaphragms 4 and 4 and the inner periphery of the
speaker housings 2 and 2A, edge members 10 and 10 are disposed for preventing the flow of air
therebetween. Six drive units 11 are connected to each of the diaphragms 4 and 4. Three drive
units 11 are disposed on the back of the flat plates 6 and 6, respectively. The drive unit 11 drives
the diaphragm 4 by the electromagnetic force acting between the voice coil 12 and the magnet
13 by energizing the voice coil 12. The magnet 13 is fixed to the back plate 14. In addition, bass
reflex boats 15 are respectively disposed on both sides of the speaker boxes 3A of the flat
speaker system 3 respectively, and a closed chamber (air is compressed on the back side of the
diaphragm 4 to provide a back pressure). Space is not formed. A high sound speaker 16 is fixed
to the back plate 14 through a support member (shown path), and is exposed to the front side of
the diaphragm 4 through a hole 17 formed in a substantially central portion of the diaphragm 4.
It is designed to emit sound waves directly. The mounting position of the high sound speaker 16
is set so that the position in the depth direction of the drive unit (shown path) of the high sound
speaker 16 and the drive unit 11 of the diaphragm 4 coincide with each other. The phases of the
generated tone and the tone generated from the high-tone speaker 16 are made to coincide with
each other. On the other hand, in the device storage unit 2B of the speaker type cabinet l, audio
devices are stored. That is, for example, the tuner 20, the amplifier 21, the CD (compact disc)
player 22, and the double cassette deck 23 are accommodated from the upper stage to the lower
stage of the device accommodation section 2B. These devices have a thin structure to be
integrated with the speaker type cabinet I. Among these devices, the CD player 22 has a
mechanism in which the disc surface is in a vertical state when the CD is set. ing. And, the abovementioned speaker type cabinet 11 flat speaker system 3 · 3, tuner 20. The amplifier 21 SCD
player 22 and the double cassette deck 23 constitute an audio system. In this case, a wall
mounting attachment (shown in the figure) is provided on the back of the speaker type cabinet 1,
and the audio system can be used in a state of being hung on the wall of the room.
According to the first embodiment of the above configuration, the tuner is mounted in the device
storage portion 2B of the speaker-type cabinet l having a thin profile of about 40 mm in which
the flat speaker systems 3 and 3 are integrally incorporated. 20, amplifier 21. If the CD player 22
and the double cassette deck 23 are accommodated, an audio system in which these parts are
integrated in a compact manner can be configured. As a result, in combination with the
characteristics of the planar speaker systems 3 and 3, it is possible to exhibit a very good
acoustic effect. And, for example, as shown in FIG. 4, since it can be used for being hung on a
wall, it is suitable as an indoor interior, and it is suitable also in terms of effective use of indoor
space without taking up a place. (2) Second Embodiment FIG. 3 (a), (b) is a diagram showing the
configuration of the second embodiment, the same reference numerals as in the first
01-05-2019
3
embodiment denote the same parts as in the first embodiment, and a description thereof will be
omitted. In the figure, a thin image monitor 30 having a depth of about 40 mm, such as a liquid
crystal television, is accommodated in the device accommodation portion 2B of the speaker type
cabinet 1 having the same configuration as that of the first embodiment. There is. According to
the second embodiment of the above-described configuration, the thin image monitor 30 can be
mounted on the speaker type cabinet l which has the depth dimension changed by about 40 mm
and is thinly formed, in which the flat speaker systems 3 and 3 described above are integrally
incorporated. Can be configured in a compact and integrated image system. As a result, since the
screen of the image monitor 30 and the front surfaces of the flat speaker systems 3 and 3 are
located on the same plane, the sound has an integral connection with the screen. As a result, in
combination with the characteristics possessed by the planar speaker systems 3 and 3, it is
possible to exhibit a very good acoustic effect. Further, as in the first embodiment, as shown in
FIG. The following modifications can be considered in the above embodiments. (1) Although the
depth dimensions of the speaker type cabinet 1 and the flat speaker systems 3 'and 3 are set to
about 40 mm, the present invention is not limited to these values. The audio devices to be stored
in the device storage unit 2B of the speaker type cabinet l are not limited to the tuner, the
amplifier, the CD player, and the double cassette deck. The image monitor stored in the device
storage portion 2B of the speaker type cabinet l is not limited to the liquid crystal television. (1)
Although the speaker type cabinet 1 is configured to be provided with the partition plate lD / ID,
the present invention is not limited to this, and the partition plate may be omitted.
(2) Although the back plate 14 is provided to the flat speaker systems 3 and 3, the present
invention is not limited to this, and it is possible to omit the back plate from the point of use in a
wall hanging state. [Effects of the Invention] As described above, according to the present
invention, a case having an open front and a thin depth dimension, and a top plate of the case
provided on one side in the width direction of the case A first speaker storage portion formed by
the bottom plate and the side plate, and a second speaker storage portion provided on the other
side in the width direction of the housing and formed by the top plate, the bottom plate, and the
side plate of the housing; A pair of flat speaker systems integrally incorporated in each of the
first and second speaker housings, and a top plate and a bottom plate of the housing and
opposing side walls of the pair of flat speaker systems Since the apparatus storage unit is
provided, the following effects can be obtained. {Circle over (2)} A flat speaker integrally
incorporated in a housing having a thin depth dimension and each audio device or image monitor
can be compactly integrated. As a result, the application of the flat speaker system can be
expanded, and when the audio devices are housed in the housing, an extremely good acoustic
effect can be exhibited, and when the image monitor is housed in the housing Since the sound
has an integral connection with the screen, it is possible to enhance the visual effect by
combining it with the acoustic effect. (2) Because the housing is thin, it can be used in a wallmounted state, so it is also suitable as an indoor interior.
01-05-2019
4
[0002]
Brief description of the drawings
[0003]
1 (a) and 1 (b) are a front view and a plan view showing the configuration of the first
embodiment of the present invention, respectively, and FIG. 2 is a sectional view taken along the
line n--n in FIG. The figures (a) and (b) are respectively a front view and a plan view showing the
construction of the second embodiment, and FIG. 4 is a diagram showing an example of use
common to the first and second embodiments.
1 ····························································································································································· · · · · · · · · · · · · · · · ·
· · · · · · · · · · flat cabinet body type AV cabinet, IA · · · · · top plate, IB · · · · · · · · · · · · · · · · · Body: 2A:
Speaker storage unit (first speaker storage unit, second speaker storage unit) 2B: Device storage
unit 3: Flat speaker system .
01-05-2019
5