CN1863412A - Speaker apparatus and reproducing apparatus - Google Patents
Speaker apparatus and reproducing apparatus Download PDFInfo
- Publication number
- CN1863412A CN1863412A CN 200610079824 CN200610079824A CN1863412A CN 1863412 A CN1863412 A CN 1863412A CN 200610079824 CN200610079824 CN 200610079824 CN 200610079824 A CN200610079824 A CN 200610079824A CN 1863412 A CN1863412 A CN 1863412A
- Authority
- CN
- China
- Prior art keywords
- casing
- loud speaker
- speaker
- housing part
- sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The present invention provides a speaker apparatus and reproducing apparatus with no limitation on their listening areas. The apparatus includes; the housing 2 substantially in the shape of a spheroid; the left speaker 5 A, which is attached to the left end of the long side of the housing 2 such that the left speaker 5 A faces outwardly of the housing 2; and the right speaker 5 B, which is attached to the right end of the long side of the housing 2 such that the right speaker 5 B faces outwardly of the housing 2. Therefore, the left speaker 5 A and the right speaker 5 B are approximately equivalent to a point sound source, and the sound from the left speaker 5 A and the right speaker 5 B smoothly radiates from the housing 2 in every direction. Thus, a listener can have good quality of sound from anywhere around the housing.
Description
Related application
The present invention comprises the relevant theme of JP2005-194043 with Japanese patent application JP2005-136741 that submitted Japan Patent office on May 9th, 2005 and submission on July 1st, 2005 Japan Patent office, and the content of these applications integral body by reference is combined in this.
Background of invention
Invention field
The present invention relates to speaker unit and reproducer, and particularly be applicable to for example boombox device.
Correlation technique
The boombox device comprises a pair of loudspeaker apparatus that separates; It has left channel loudspeaker equipment and right channel loudspeaker equipment.Left channel loudspeaker equipment output L channel audio frequency, right channel loudspeaker equipment output right audio channel.
Left channel loudspeaker equipment places hearer's left ear side usually, and right channel loudspeaker equipment places his/her right ear side simultaneously.Because he is between left channel loudspeaker equipment and the right channel loudspeaker equipment, and simultaneously in the face of right channel loudspeaker equipment and left channel loudspeaker equipment, then he can hear stereo.
But, obtain high-quality stereo, hearer's position should be he simultaneously in the face of left channel loudspeaker equipment and right channel loudspeaker equipment, and identical distance is arranged with each loudspeaker apparatus.In this mode, the hearer can obtain good stereosonic zone just certain limited field (hearer can obtain good stereosonic zone and be also referred to as " listening area " usually).
Correspondingly, in recent years, for example the boombox device (Fig. 1) that is disclosed in the open communique .H09-98495 of Japan Patent comprises a pair of loud speaker box body that separates that is used for a left side and R channel, vibrating membrane is fixed with clockwise and counterclockwise direction simultaneously, and the angle predetermined with respect to the positive face tilt of loud speaker box body.Use these vibrating membranes can enlarge its listening area.
Summary of the invention
Yet though above-mentioned boombox device enlarges its listening area to a certain extent, listening area still is restricted basically.In this mode, listening area is subjected to the type of this class speaker unit and limits.
Consider the problems referred to above and make the present invention, to be provided at hard-core speaker unit of its listening area and reproducer.
In an embodiment of the present invention, speaker unit and reproducer comprise: the casing that is ellipsoidal shape substantially; Be attached to first loud speaker of long side one end of described casing, described first loud speaker has the vibrating membrane of its front towards the casing outside; Be attached to second loud speaker of the long side other end of described casing, described second loud speaker has its positive vibrating membrane in the face of described casing outside.
Therefore, first loud speaker and the second loud speaker roughly equiv be in a simple sound source, and around the sound that sends from first loud speaker and second loud speaker is radiated to reposefully from casing.
In one embodiment of this invention, described speaker unit and reproducer comprise: the casing that is spheroid form substantially; Be attached to first loud speaker of long side one end of described casing, described first loud speaker has the vibrating membrane of its front towards the casing outside; Be attached to second loud speaker of the long side other end of described casing, described second loud speaker has its positive vibrating membrane in the face of described casing outside.Therefore, first loud speaker and the second loud speaker roughly equiv be in a simple sound source, and around the sound that sends from first loud speaker and second loud speaker is radiated to reposefully from casing.Because speaker unit and reproducer have steady and broad directivity, thereby the hearer can obtain the high quality sound from any place around the casing.Therefore, speaker unit and reproducer are to listening area without limits.
Character of the present invention, principle and practicality below will be more obvious in the detailed description with the accompanying drawing, and similarly part is specified by similar label or character in the accompanying drawings.
Description of drawings
In the accompanying drawings:
Figure 1A and 1B are the schematic diagrames that the external structure of boombox equipment is shown;
Fig. 2 is the schematic diagram that the internal structure of boombox equipment is shown;
Fig. 3 A and 3B are the schematic diagrames that the boombox equipment size is shown;
Fig. 4 is the schematic diagram (frequency: 10kHz) that ellipsoid casing surface level distribution is shown;
Fig. 5 is the schematic diagram (frequency: 5kHz) that ellipsoid casing surface level distribution is shown;
Fig. 6 is the schematic diagram (frequency: 2kHz) that ellipsoid casing surface level distribution is shown;
Fig. 7 is the schematic diagram (frequency: 1kHz) that ellipsoid casing surface level distribution is shown;
Fig. 8 is the schematic diagram (frequency: 500Hz) that ellipsoid casing surface level distribution is shown;
Fig. 9 is the level distribution schematic diagram (frequency: 10kHz) that illustrates around the ellipsoid casing along the yz plane;
Figure 10 is the level distribution schematic diagram (frequency: 10kHz) that illustrates around the ellipsoid casing along the xy plane;
Figure 11 is the level distribution schematic diagram (frequency: 10kHz) that illustrates around the ellipsoid casing along the zx plane;
Figure 12 is the level distribution schematic diagram (frequency: 5kHz) that illustrates around the ellipsoid casing along the yz plane;
Figure 13 is the level distribution schematic diagram (frequency: 5kHz) that illustrates around the ellipsoid casing along the xy plane;
Figure 14 is the level distribution schematic diagram (frequency: 5kHz) that illustrates around the ellipsoid casing along the zx plane;
Figure 15 is the level distribution schematic diagram (frequency: 2kHz) that illustrates around the ellipsoid casing along the yz plane;
Figure 16 is the level distribution schematic diagram (frequency: 2kHz) that illustrates around the ellipsoid casing along the xy plane;
Figure 17 is the level distribution schematic diagram (frequency: 2kHz) that illustrates around the ellipsoid casing along the zx plane;
Figure 18 is the level distribution schematic diagram (frequency: 1kHz) that illustrates around the ellipsoid casing along the yz plane;
Figure 19 is the level distribution schematic diagram (frequency: 1kHz) that illustrates around the ellipsoid casing along the xy plane;
Figure 20 is the level distribution schematic diagram (frequency: 1kHz) that illustrates around the ellipsoid casing along the zx plane;
Figure 21 is the level distribution schematic diagram (frequency: 500Hz) that illustrates around the ellipsoid casing along the yz plane;
Figure 22 is the level distribution schematic diagram (frequency: 500Hz) that illustrates around the ellipsoid casing along the xy plane;
Figure 23 is the level distribution schematic diagram (frequency: 500Hz) that illustrates around the ellipsoid casing along the zx plane;
Figure 24 is the level distribution schematic diagram (frequency: 10kHz) that illustrates around the cuboid casing along the yz plane;
Figure 25 is the level distribution schematic diagram (frequency: 10kHz) that illustrates around the cuboid casing along the xy plane;
Figure 26 is the level distribution schematic diagram (frequency: 10kHz) that illustrates around the cuboid casing along the zx plane;
Figure 27 is the level distribution schematic diagram (frequency: 5kHz) that illustrates around the cuboid casing along the yz plane;
Figure 28 is the level distribution schematic diagram (frequency: 5kHz) that illustrates around the cuboid casing along the xy plane;
Figure 29 is the level distribution schematic diagram (frequency: 5kHz) that illustrates around the cuboid casing along the zx plane;
Figure 30 is the level distribution schematic diagram (frequency: 2kHz) that illustrates around the cuboid casing along the yz plane;
Figure 31 is the level distribution schematic diagram (frequency: 2kHz) that illustrates around the cuboid casing along the xy plane;
Figure 32 is the level distribution schematic diagram (frequency: 2kHz) that illustrates around the cuboid casing along the zx plane;
Figure 33 is the level distribution schematic diagram (frequency: 1kHz) that illustrates around the cuboid casing along the yz plane;
Figure 34 is the level distribution schematic diagram (frequency: 1kHz) that illustrates around the cuboid casing along the xy plane;
Figure 35 is the level distribution schematic diagram (frequency: 1kHz) that illustrates around the cuboid casing along the zx plane;
Figure 36 is the level distribution schematic diagram (frequency: 500Hz) that illustrates around the cuboid casing along the yz plane;
Figure 37 is the level distribution schematic diagram (frequency: 500Hz) that illustrates around the cuboid casing along the xy plane;
Figure 38 is the level distribution schematic diagram (frequency: 500Hz) that illustrates around the cuboid casing along the zx plane;
Figure 39 is the internal structure schematic diagram that illustrates according to another embodiment of the present invention (1) boombox equipment;
Figure 40 is the internal structure schematic diagram that illustrates according to another embodiment of the present invention (2) boombox equipment;
Figure 41 is the internal structure schematic diagram that illustrates according to another embodiment of the present invention (3) boombox equipment;
Figure 42 A and 42B are the configuration schematic diagram that illustrates according to another embodiment of the present invention (1) casing support section; And
Figure 43 A and 43B are the configuration schematic diagram that illustrates according to another embodiment of the present invention (2) casing support section.
Embodiment
Referring now to accompanying drawing one embodiment of the invention is described in detail.
(1) external structure of boombox equipment
In Figure 1A and 1B, label 1 representative has the boombox equipment of incorporated amplifier.This boombox equipment 1 comprises the hollow casing 2 that is the spheroid shape substantially.This ellipsoid casing 2 comprises central housing part 3, a terminal shell part 4A and other end housing part 4B.Central authorities' housing part 3, a terminal shell part 4A and other end housing part 4B form in the following manner: two sections (an end-grain cutting plane and other end section) are set two positions, and there is identical distance in each section with the central point G of spheroid on respect to the vertical direction of spheroid major axis; And, downcut ellipsoid casing 2 along an end-grain cutting plane and other end section.As a result, on end-grain cutting plane of central housing part 3 and other end section, be formed with two circular aperture 3A and 3B.Substantially be the end-grain cutting plane that a dome-type terminal shell part 4A is connected to central housing part 3, thereby this terminal shell part 4A covers aperture 3A.Substantially be the other end section that dome-type other end housing part 4B is connected to central housing part 3, thereby this other end housing part 4B covers aperture 3B.In this mode, central housing part 3, a terminal shell part 4A and other end housing part 4B have constituted the shape of spheroid.
The major axis of spheroid casing 2 is also referred to as horizontal middle spindle (this horizontal middle spindle will be called the casing central shaft) usually.One terminal shell part 4A and other end housing part 4B will be hereinafter referred to as left end housing part 4A and right-hand member housing part 4B.When the hearer is in a position, when he can see the left end housing part 4A that is positioned at his left side and be positioned at the right-hand member housing part 4B on his right side on this position, the face of the boombox equipment that she faced was exactly the front of boombox equipment 1. Aperture 3A and 3B are also referred to as left side aperture 3A and aperture, right side 3B.
The loud speaker 5A of L channel audio frequency and the loud speaker 5B of right audio channel place the inside of central housing part 3, thereby loud speaker 5A and 5B are on the relative fully position, and have identical distance (the loud speaker 5A of L channel audio frequency and the loud speaker 5B of right audio channel also are hereinafter referred to as left speaker and right loud speaker) with central point G on the casing central shaft.Particularly, left speaker 5A places the inside of central housing part 3, thereby left speaker 5A blocks left side aperture 3A from the inboard, and its front that is the vibrating membrane of plate-like substantially is exposed to the outside by aperture, left side 3A.In the same way, right loud speaker 5B places the inside of central housing part 3, thereby right loud speaker 5B blocks aperture, right side 3B from the inboard, and its front that is the vibrating membrane of plate-like substantially is exposed to the outside by aperture, right side 3B.In the inside of central housing part 3, the back side of left speaker 5A is in the face of the back side of right loud speaker 5B.In this mode, left speaker 5A is equipped with the sound panel that is the semielliptical shelly substantially, and in other words, the smooth curved surface of the sound panel of left speaker 5A is stretched over the back of vibrating membrane from the vibrating membrane edge of left speaker 5A.In addition, right loud speaker 5B is equipped with the sound panel that is the semielliptical shelly substantially, and in other words, the smooth curved surface of the sound panel of right loud speaker 5B is stretched over the back of vibrating membrane from the vibrating membrane edge of right loud speaker 5B.The sound panel of left speaker 5A and right loud speaker 5B is connected to each other in seamless mode, thereby the back side of the vibrating membrane of left speaker 5A is in the face of the back side of the vibrating membrane of right loud speaker 5B.
In addition, central housing part 3 has left side casing support component 6A and right side casing support component 6B.Left side casing support component 6A ringwise.The shape of right side casing support component 6B is identical with the shape of left side casing support component 6A.For ease of explaining, with central point G identical distance is arranged and be arranged on the central housing part 3 perpendicular to the imaginary left side plane F1 and the imaginary right side plane F2 of casing central shaft.In this case, left side casing support component 6A and right side casing support component 6B form along plane, left side F1 that fabricates and imaginary plane, right side F2 respectively.Particularly, left side casing support component 6A is looped around on the outside of central housing part 3, thereby left side casing support component 6A protrudes from central housing part 3.In an identical manner, right side casing support component 6B is looped around on the outside of central housing part 3, thereby right side casing support component 6B protrudes from central housing part 3.
The cross section part of ring-type left side casing support component 6A and right side casing support component 6B is semicircle shape, encloses wideer than the periphery in it.In addition, the external diameter of left side casing support component 6A and right side casing support component 6B is a bit larger tham the maximum outside diameter (maximum outside diameter of central housing part 3 is perpendicular to the casing central shaft) of central housing part 3.For example, the external diameter of left side casing support component 6A and right side casing support component 6B is than the big several millimeters of maximum outside diameter of central housing part 3.Therefore, in the time of on stereo equipment 1 places such as the plane of desktop, on on the casing support component 6A outside, left side any and the casing support component 6B outside, right side any just touched this plane, so just prevents that central housing part 3 from contacting with the plane.In this mode, left side casing support component 6A and right side casing support component 6B with central housing part 3 horizontal supports on this plane.Because boombox equipment 1 has only touch the plane at 2, does not drive to this plane thereby do not have a large amount of vibrations from spheroid casing 2.
In addition, because the central housing part 3 of boombox equipment 1 is supported for a little higher than this plane by ring-type left side casing support component 6A and right side casing support component 6B, left speaker 5A does not contact this plane with right loud speaker 5B, but very approaching with it.Therefore, this boombox equipment 1 is placed on the plane that hard material with good reflection makes, can strengthens among left speaker 5A and the right loud speaker 5B by the low pitch sound due to the sound panel effect.The effect of sound panel is because the sound of left speaker 5A and right loud speaker 5B also can reflect on contiguous face, as also sounding on the position of plane opposite side from a left side and right loud speaker 5A and 5B.So just strengthen the low-frequency range (ratio of wavelength of sound being determined this scope) that (has doubled) sound based on the distance between left speaker 5A and the right loud speaker 5B.In other words because the reflection and the direct voice homophase of low frequency, from the reinforcement of reflex on plane the sound of left speaker 5A and right loud speaker 5B.
Central authorities housing part 3 inside have a weight 7.Particularly, weight 7 places the middle section of central housing part 3 inner bottom surface.Therefore, central housing part 3 has very low center of gravity.This weight 7 makes central housing part 3 maintenance levels, can prevent that when Stereoloudspeaker places the plane central housing part 3 from rolling around the casing central shaft.Under this mode, boombox equipment 1 only has 2 points, and promptly 2 on left side casing support component 6A and the casing support component 6B outside, right side contact with the plane, thereby boombox equipment 1 is just as tumbler.Successively, when boombox equipment 1 was sounded, the vibrating membrane of left speaker 5A and right loud speaker 5B was along vertical casing central shaft vibration of passing two vibrating membranes.When boombox equipment places on the plane, 2 points of boombox equipment 1, promptly 2 on left side casing support component 6A and the casing support component 6B outside, right side contact with this plane.On the straight line that these 2 are in the casing central axes.Therefore, even if the vibrating membrane of left speaker 5A and right loud speaker 5B vibrates along the casing central shaft, these 2 also can prevent central housing part 3 vibrations.Therefore, this boombox equipment 1 reappears voice data, and sends L channel audio frequency and right audio channel by left speaker 5A and right loud speaker 5B subsequently, and can (such as desktop) not go up mobile on the plane.In this embodiment, left side casing support component 6A and right side casing support component 6B for example, by making such as rubber and silicone elastomeric material.Left side casing support component 6A and right side casing support component 6B also can be by making such as the hard material of metal and plastics.Plane and the contact area between the support component that people expect to place boombox equipment 1 are as much as possible little.
By being formed, criss-cross Turbogrid plates (latticed plate) bending is dome-type left end housing part 4A and right-hand member housing part 4B substantially.This left end housing part 4A and right-hand member housing part 4B are attached on the central housing part 3, thereby left end housing part 4A and right-hand member housing part 4B cover left side aperture 3A and aperture, right side 3B.Therefore, left end housing part 4A and right-hand member housing part 4B can protect left speaker 5A and right loud speaker 5B (they are exposed to the outside from aperture, left side 3A and aperture, right side 3B), and can not stop the sound that left speaker 5A and right loud speaker 5B send.In addition, because left end housing part 4A and right-hand member housing part 4B are lattice-shaped, thereby left end housing part 4A and right-hand member housing part 4B can revise the quality of sound.In other words, left end housing part 4A and right-hand member housing part 4B are similar to the loud speaker grid of protective effect, are similar to the equalizer of revising the sound frequency feature simultaneously.
(2) internal structure of boombox equipment
With reference to Fig. 2, the internal structure of stereo loudspeaker apparatus 1 is described.Fig. 2 be along with ellipsoid casing 2 from the top the imaginary plane that separates of part and the cross-sectional view of the ellipsoid casing 2 that obtains on earth.As shown in Figure 2, central housing part 3 inside have a pair of demarcation strip 8A and 8B.Demarcation strip 8A places the inside left of central housing part 3.Demarcation strip 8B places the inner right side of central housing part 3.Demarcation strip 8A has identical distance with 8B with central point G, and all perpendicular to the casing central shaft.The demarcation strip 8A in left side is called as left side demarcation strip 8A, and the demarcation strip 8B on right side is called as right side demarcation strip 8B simultaneously.
Left side demarcation strip 8A and right side demarcation strip 8B have created three memory space 9A, 9B and 9C in central housing part 3 inside.Centralized storage space 9A is between left side demarcation strip 8A and the right side demarcation strip 8B.Left side memory space 9B is positioned at the left side of left side demarcation strip 8A.Right side memory space 9C is positioned at the right side of right side demarcation strip 8B, and its size and left side memory space 9B's is big or small identical.
The circuit part 10 that centralized storage space 9A has stored weight 7 and included amplifier.Weight 7 can be the battery of driving circuit section 10.Left side memory space 9B has stored left speaker 5A, thereby only is that the front of its vibrating membrane is exposed to the outside from aperture, left side 3A.Right side memory space 9C has stored right loud speaker 5B, thus only be its vibrating membrane the front from aperture, right side 3B be exposed to the outside.Therefore, left side memory space 9B and right side memory space 9C are used as the loudspeaker enclosure of left speaker 5A and 5B.Because left side memory space 9B is identical with the shape and size of right side memory space 9C, the sound of then right loud speaker 5B has identical frequecy characteristic with the sound of left speaker 5A.
(3) operation and effect
Based on left channel audio signal and right channel audio signal, left speaker 5A in the boombox equipment 1 and right loud speaker 5B send L channel audio frequency and right audio channel respectively.
Fig. 3 A and 3B show the size of the boombox equipment 1 in this measurement: the long axis length of ellipsoid casing 2 (being the length between its left end and the right-hand member) is 94mm; Length between central authorities' housing part 3 left ends and central housing part 3 right-hand members (i.e. length between left side aperture 3A and aperture, the right side 3B) is 82.8mm; Length between the peak of left side casing support component 6A and the peak of right side casing support component 6B is 26.5mm; The width of left side casing support component 6A and right side casing support component 6B is 3.5mm; The external diameter of left side casing support component 6A and right side casing support component 6B is 63mm; Central authorities' housing part 3 cross section maximum outside diameters are 59.2mm; And the diaphragm diameter of left speaker 5A and right loud speaker 5B is 25mm.For the purpose of simplicity of explanation, the direction from the left end of ellipsoid casing 2 to its right-hand member is decided to be the x direction, and the direction from its bottom to its top is decided to be the y direction, and is decided to be the z direction from its back side to its positive direction.
In addition, carrying out level distribution down in each different frequency (10kHz, 5kHz, 2kHz, 1kHz and 500Hz) measures.In this case, it is identical with the level of the right channel audio signal that is applied to right loud speaker 5B to be applied to the level of left channel audio signal of left speaker 5A.In addition, left channel audio signal and right channel audio signal homophase.
Fig. 4 to 8 is illustrated in the level distribution on ellipsoid casing 2 surfaces under each frequency.Fig. 4,5,6,7 and 8 results that illustrate respectively under 10kHz, 5kHz, 2kHz, 1kHz and the 500Hz.
Shown in Fig. 4 to 8,, under each frequency, all has maximum sound level (dB) at adjacent with left speaker 5A respectively ellipsoid casing 2 left ends and right-hand member with right loud speaker 5B.In addition, under each frequency, to its middle body, sound level decays gradually from its left end to its middle body and from its right-hand member.Therefore, because the diffraction effect on ellipsoid casing 2 surfaces is suppressed, boombox equipment 1 has improved the quality of sound.In addition, under each frequency, the sound level on the y direction (promptly from the bottom of ellipsoid casing 2 to its top) decays gradually.In this mode, the bottom side of ellipsoid casing 2 has higher sound level.This is because tested boombox equipment 1 for example places on the desktop, thereby has caused the sound panel effect.In other words, from desktop sound that reflects and the sound that directly comes from left speaker 5A and right loud speaker 5B is homophase, thereby make direct voice be strengthened (reflection is that direct voice then is not the sound that reflects from desktop owing to the sound that sends from left speaker 5A and right loud speaker 5B produces from the desktop reflection).Especially, the sound panel effect appears in the relatively long low-frequency range of sound wave.
Fig. 9 to 23 shows the level distribution around (10kHz, 5kHz, 2kHz, 1kHz and 500Hz) ellipsoid casing 2 under each frequency.Particularly, Fig. 9 to 23 shows the level distribution around the ellipsoid casing 2 on yz plane, xy plane and the zx plane.
Shown in Fig. 9 to 23, in low-frequency range (500Hz) and intermediate frequency range (1kHz and 2kHz), maximum sound level is arranged around the ellipsoid casing 2.On all directions away from ellipsoid casing 2, sound level equivalent decay gradually.In high-frequency range (5kHz and 10kHz), sound level is very high in the zone of some wire, but substantially maximum sound level is arranged around ellipsoid casing 2, and sound level decays away from ellipsoid casing 2 time gradually.The wire zone that sound level is very high (this wire zone demonstrates the class beam direction feature of sound) is because the interference of sound between left speaker 5A and the right loud speaker 5B causes.Consider this point, in high-frequency range, each class beam zone that sound level is very high extends to each direction from ellipsoid casing 2, and does not tilt towards a certain specific direction.
Correspondingly, in this ellipsoid casing 2, left speaker 5A and right loud speaker 5B are equivalent to a simple sound source basically.In other words, left speaker 5A and right loud speaker 5B can be used as nondirectional source of sound.Therefore, the stereo sound that comes from left speaker 5A and right loud speaker 5B is radiated each direction reposefully from ellipsoid casing 2.In addition, because left speaker 5A and right loud speaker 5B are very approaching, even if the hearer does not stand in the dead ahead (or dead ahead of boombox equipment 1) of left speaker 5A or right loud speaker 5B vibrating membrane, the sound that comes from the sound of left speaker 5A and come from right loud speaker 5B still arrives him with essentially identical sound level in the essentially identical time.Therefore, utilize boombox equipment 1, listening area is not limited in a certain specific scope, but any place of hearer around boombox equipment 1 high-quality stereo sound of uppick all.
Figure 24 to 38 illustrates than the level distribution according to embodiment of the invention boombox equipment 1, the level distribution around the casing 15.In this case, the shape of casing 15 is cuboid basically, and the shape of boombox equipment 1 is elliposoidal (casing 15 is also referred to as cuboid casing 15) basically simultaneously.Simultaneously, the longitudinal length of cuboid casing 15 (promptly the length of its end to end) in a longitudinal direction is 94mm, this basically with the left end of ellipsoid casing 2 equal in length to right-hand member; The length of square side surface one side of cuboid casing 15 is 59.2mm, and this equates with the cross section maximum outside diameter (59.2mm) of the central housing part 3 of ellipsoid casing 2 basically.Left end and right-hand member that left speaker identical with right loud speaker 5B with the left speaker 5A of ellipsoid casing 2 and right loud speaker place cuboid casing 15 respectively, thus the face exposure of the vibrating membrane of left speaker and right loud speaker is outside.For the ease of explaining, be decided to be the x direction from the direction of the end to end of cuboid casing 15, and the direction from its bottom to its top is decided to be the y direction, is decided to be the z direction from its back side to its positive direction simultaneously.
In addition, under each frequency (10kHz, 5kHz, 2kHz, 1kHz and 500Hz), level distribution is carried out measurement.Figure 24 to 38 illustrates level distribution around the cuboid casing 15 under each frequency, and shows the level distribution around the cuboid casing 15 on yz plane, xy plane and the zx plane particularly.
Shown in Figure 24 to 38, in low-frequency range (500Hz), almost there is not difference between the level distribution of cuboid casing 15 and ellipsoid casing 2.This be because, than the wavelength of sound, left speaker and loud speaker and casing small-sized, and the distance between left speaker and the right loud speaker etc. is too little.Same principle can be used for explaining the situation of ellipsoid casing 2.Yet, when frequency when intermediate frequency (1kHz and 2kHz) is increased to high-frequency range (5kHz and 10kHz), the quantity in the class beam zone that sound level is very high (the class beam direction feature that is sound occurs variantly) has increased.In addition, in intermediate frequency range and high-frequency range, tilt towards some direction from the class beam zone that cuboid casing 15 expands.This distribution is different from the situation of ellipsoid casing 2.In other words, because the surface of cuboid casing 15 has the corner, the sound of left speaker and the sound of right loud speaker are strengthened each other or are cancelled each other out at the edge of cuboid casing 15, have so just produced the class beam characteristics of sound on some direction.Therefore, the stereo of left speaker and right loud speaker is not to be radiated on each direction from cuboid casing 15.Therefore, when using cuboid casing 15, listening area is limited in the specific scope.
As mentioned above, boombox equipment 1 has hollow and axiolitic ellipsoid casing 2.Be placed with left speaker 5A and right loud speaker 5B on ellipsoid casing 2 major axis, one ends (left side) and the other end (right side), thereby outside the front of the vibrating membrane of left speaker 5A and right loud speaker 5B faces.Be that the hemisphere sound panel of boombox equipment 1 has the smooth curved surface from the vibrating membrane border extended of left speaker 5A to this vibrating membrane back, another hemisphere sound panel has the smooth curved surface from the vibrating membrane border extended of right loud speaker 5B to this vibrating membrane back simultaneously.In this boombox equipment 1, the sound panel of left speaker 5A and right loud speaker 5B interconnects in seamless mode, so just prevents the diffracting surface of the sound of left speaker 5A and right loud speaker 5B at ellipsoid casing 2.Therefore, the sound of left speaker 5A and right loud speaker 5B stably is radiated on each direction from ellipsoid casing 2.
In addition, in boombox equipment 1, on the outside of casing support component 6A around ellipsoid casing 2, ring-type left side, thereby left side casing support component 6A protrudes a little from ellipsoid casing 2.In the same way, ring-type right side casing support component 6B is looped around on the outside of ellipsoid casing 2, thereby right side casing support component 6B protrudes a little from ellipsoid casing 2.In the time of on boombox equipment 1 places such as the plane of desktop, a bit contacting on any on the casing support component 6A of left side and the right side casing support component 6B with this plane.Therefore, ellipsoid casing 2 by left side casing support component 6A and right side casing support component 6B support exceed the plane a little, so just make that the contact area between plane and the boombox equipment 1 is as much as possible little.Therefore, do not have a large amount of vibrations and drive to the plane from ellipsoid casing 2.
In addition, exceed this plane slightly because ellipsoid casing 2 is supported by ring-type left side casing support component 6A and right side casing support component 6B, the vibrating membrane of left speaker 5A and right loud speaker 5B does not contact this plane but is very approaching with it.Therefore, the sound panel effect can strengthen the sound (particularly low pitch sound) that sends among left speaker 5A and the right loud speaker 5B.Therefore,, be not enough to produce the high-quality lower frequency sounds, but the sound panel effect will help boombox equipment 1 to improve the low-frequency sound quality even if the loud speaker of boombox equipment 1 is very little.Therefore, can do the loud speaker of boombox equipment 1 very little, and keep the quality of sound simultaneously.
As mentioned above, boombox equipment 1 comprises: axiolitic ellipsoid casing 2; Left speaker 5A, it is attached to ellipsoid casing 2 major axis left ends, thus the front of vibrating membrane is towards the outside of ellipsoid casing 2; And right loud speaker, it is attached to ellipsoid casing 2 major axis right-hand members, thus the front of vibrating membrane is towards the outside of ellipsoid casing 2.Therefore, left speaker 5A and right loud speaker 5B are approximate to be equal to a simple sound source, and the sound of left speaker 5A and right loud speaker 5B stably is radiated each direction from ellipsoid casing 2.Therefore, the hearer any one all can obtain the sound of good quality around ellipsoid casing 2.
(4) other embodiment
In the various embodiments described above, the casing of boombox equipment 1 is shaped as ellipsoid.Yet the present invention is not limited to this.When from fore-and-aft direction (be the z direction and with z side in the opposite direction) it seems that this casing can replace ellipse with circle or oblong.When from longitudinal direction (be the x direction and with x side in the opposite direction) it seems that casing can replace circle with ellipse or oblong.In other words, people expect that the casing surface of boombox equipment 1 does not have the corner, help the vibrating membrane of left speaker 5A and right loud speaker 5B that the sound stable eradiation is arrived each direction like this.
In the various embodiments described above, left speaker 5A (first loud speaker) and right loud speaker 5B (second loud speaker) are attached on the central housing part 3, thereby the vibrating membrane front of left speaker 5A and right loud speaker 5B is exposed to the outside from aperture, left side 3A and aperture, right side 3B respectively.In addition, the vibrating membrane central shaft of left speaker 5A and right loud speaker 5B overlaps with the central shaft (central shaft of vibrating membrane is also referred to as the vibrating membrane central shaft) of ellipsoid casing 2 substantially.But the present invention is not limited to this.Keeping the vibrating membrane central axes in the casing central shaft, the vibrating membrane central shaft of left speaker 5A and right loud speaker 5B can depart from the casing central shaft of ellipsoid casing 2.For example, as shown in figure 39, keeping the vibrating membrane central axes in the casing central shaft, the vibrating membrane central shaft of left speaker 5A and right loud speaker 5B can be in the casing central shaft below of ellipsoid casing 2.In this case, in the time of on boombox equipment 1 places such as the flat board of desk, the vibrating membrane of left speaker 5A and right loud speaker 5B will can increase the sound panel effect like this than the situation in the foregoing description more near dull and stereotyped.
In addition, the vibrating membrane central shaft can be with respect to the casing inclined.For example, as shown in figure 40, the vibrating membrane central shaft is about 30 degree of casing inclined relatively, thereby the front of vibrating membrane faces down.So just increased amount of sound, and increased the sound panel effect by this from plane reflection.In this mode, the vibrating membrane central shaft can depart from the casing central shaft, but can obtain effect same as the previously described embodiments.Be noted that people expect that the vibrating membrane of the vibrating membrane of left speaker 5A and right loud speaker 5B places along the surface of ellipsoid casing 2 left end portion and the surface of ellipsoid casing 2 right end portion respectively.
In the above-described embodiments, central housing part 3 inside have a pair of demarcation strip 8A and 8B, and these demarcation strips 8A and 8B have created three spaces in central housing part 3.But the present invention is not limited to this.In central housing part 3, also can only place a demarcation strip (or three or more demarcation strip).For example, as shown in figure 41, only there is a demarcation strip 20 central housing part 3 inside.In this case, demarcation strip 20 is on the G of central point, and perpendicular to the casing central shaft.In central housing part 3, demarcation strip 20 has been created the left side memory space 21A that is positioned at demarcation strip 20 left sides and has been positioned at demarcation strip 20 right sides and the big or small right side memory space 21B that equates with left side memory space 21A.Left speaker 5A is arranged in left side memory space 21A, and right loud speaker 5B is arranged in right side memory space 21B simultaneously.This configuration may be used on not comprising in the boombox equipment such as the circuit part 10 of amplifier.Boombox equipment with this configuration directly outputs to left speaker 5A and right loud speaker 5B with stereo audio signal (this signal provides from external amplifier) after amplifying.In addition, weight 7 (not shown) for example are divided into two, and each piece is positioned at left side memory space 21A and right side memory space 21B.
In the above-described embodiments, central housing part 3 is supported by left side casing support component 6A and right side casing support component 6B.This annular left side casing support component 6A is looped around on the outside of central housing part 3, thereby left side casing support component 6A protrudes a little from central housing part 3.In the same way, annular right side casing support component 6B is looped around on the outside of central housing part 3, thereby right side casing support component 6B protrudes a little from central housing part 3.But, the invention is not restricted to this.Thereby be arranged on the difform support section that protrudes from central housing part 3 on the central housing part 3 and also can support central housing part 3.For example, shown in Figure 42 A and 42B, can be provided with three support section 30A, 30B and 30C in the bottom surface of central housing part 3, each all is a semi-spherical shape.In this case, support section 30A, 30B and 30C place and fabricate on the vertex of a triangle, with support column central authorities housing part 3.Perhaps, shown in Figure 43 A and 43B, can be provided with two supporting bracket 31A and 31B on the bottom surface of central housing part 3, the bottom surface of each plate is smooth.In this case, when central housing part 3 places on the plane, this two plates and plane parallel, thus supporting bracket 31A and 31B support central housing part 3.In this mode, people expect that one or more support sections and the plane of supporting central housing part 3 have two little contact areas at least, and these contact areas are on the straight line that parallels with the casing central shaft, so just prevent in the vibration of the vibrating membrane of left speaker 5A and right loud speaker 5B and when sounding boombox equipment also occur moving.
In the above-described embodiments, the present invention is applicable to the boombox equipment 1 of incorporated amplifier.But, the invention is not restricted to this.For example, the present invention is applicable to the reproducer with built-in stereo speaker.In this case, reproducing apparatus can have circuit part 10.This circuit part 10 can comprise the recording equipment such as nonvolatile memory and hard disk drive, the voice data of their storages to compress and to encode such as MPEG Audio Layer-3 (MP3) form and adaptive acoustic transform coding 3 (ATRAC3) form; And reproduction treatment facility, this equipment converts audio signal to by the compressed encoding voice data that execution decoding processing, digital-to-analogue conversion processing, processing and amplifying etc. will read from recording equipment, and subsequently audio signal is offered left speaker 5A and right loud speaker 5B.Perhaps, circuit part 10 comprises that reception reappears treatment facility, it receives voice data by non-wireless means or wireless device (such as infrared communications set) from external sender, convert this voice data to audio signal by carrying out demodulation process etc., and this audio signal is offered left speaker 5A and right loud speaker 5B subsequently.In this case, can carry out modulation and demodulation to voice data by form digital or simulation.Because the operation of circuit part 10 is equal to the operating instruction of general reproducer substantially, then omit the operation of relevant circuit part 10 at this, this circuit part 10 comprises recording equipment and reappears treatment facility, perhaps receives and reappears treatment facility.
In the above-described embodiments, the present invention is applicable to the boombox equipment 1 that can produce 2 channel stereo.But, the invention is not restricted to this.For example, the present invention also is applicable to mono speaker equipment that can produce monophonic sounds etc.
In the above-described embodiments, left end housing part 4A and right-hand member housing part 4B are dome-shaped substantially, and are that grid sheet by crooked cruciformity forms.Therefore, left end housing part 4A and right-hand member housing part 4B are similar to the loud speaker grid of protectiveness.But the invention is not restricted to this.Difform left end housing part 4A and right-hand member housing part 4B are applicable to boombox equipment 1.Be noted that people expect that left end housing part 4A and right-hand member housing part 4B are similar to the loud speaker grid usually.
In the above-described embodiments, be used as the left side casing support component 6A of vibration absorber and right side casing support component 6B by for example making such as rubber and silicone elastomeric material.But the invention is not restricted to this.Left side casing support component 6A and right side casing support component 6B also can be made by metal, plastics etc.It is as much as possible little to be noted that people expect to place the plane and the contact area between the support component of boombox equipment 1, is transferred to the plane with the vibration that prevents boombox equipment 1.
In the above-described embodiments, the present invention is for example applicable to the boombox equipment 1 that has as Fig. 3 A and 3B illustrated dimension (outside).But the invention is not restricted to this.The present invention also is applicable to the boombox equipment 1 with different size (outside).
Configuration of one embodiment of the invention and method are applicable to various types of loudspeaker apparatus and reproducing apparatus (such as the loud speaker that can send stereo sound and can receive and reappear voice data and have the reproducing apparatus of boombox).
Should be appreciated that persons skilled in the art can be made various modifications, combination, sub-portfolio and variation according to this designing requirement and other factors, as long as they all fall in claims and the equivalent scope thereof.
Claims (7)
1. speaker unit comprises:
Substantially be axiolitic casing;
Be attached to first loud speaker of longer side one end of described casing, the front of the vibrating membrane of described first loud speaker is towards described casing outside; And
Be attached to second loud speaker of the longer side other end of described casing, the front of the vibrating membrane of described second loud speaker is towards described casing outside.
2. speaker unit as claimed in claim 1 also comprises:
Place a plurality of casing support sections on described casing surface, described casing support section protrudes from described casing.
3. speaker unit as claimed in claim 2 is characterized in that,
Described casing support section is an annular, and its central shaft is corresponding to the longitudinal axis of described casing.
4. speaker unit as claimed in claim 1 is characterized in that,
Described first loud speaker and described second loud speaker are placed on the longitudinal axis of described casing.
5. speaker unit as claimed in claim 1 is characterized in that,
Described first loud speaker and described second loud speaker are not placed on the longitudinal axis of described casing.
6. reproducer comprises:
Substantially be axiolitic casing;
Be attached to first loud speaker of longer side one end of described casing, the front of the vibrating membrane of described first loud speaker is towards described casing outside;
Be attached to second loud speaker of the longer side other end of described casing, the front of the vibrating membrane of described second loud speaker is towards described casing outside;
The storage area that is used for stores audio data; And
Be used for converting to audio signal from the described voice data that described storage area reads, and by described first loud speaker and described second loud speaker reconstructing portion with described audio signal output.
7. reproducer comprises:
Substantially be axiolitic casing;
Be attached to first loud speaker of longer side one end of described casing, the front of the vibrating membrane of described first loud speaker is towards described casing outside;
Be attached to second loud speaker of the longer side other end of described casing, the front of the vibrating membrane of described second loud speaker is towards described casing outside;
Be used to receive the receiving unit of voice data; And
Be used for converting to audio signal by the voice data that described receiving unit receives, and by described first loud speaker and described second loud speaker reconstructing portion with described audio signal output.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005136741 | 2005-05-09 | ||
| JP2005136741 | 2005-05-09 | ||
| JP2005194043 | 2005-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1863412A true CN1863412A (en) | 2006-11-15 |
Family
ID=37390712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610079824 Pending CN1863412A (en) | 2005-05-09 | 2006-05-09 | Speaker apparatus and reproducing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1863412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101384095B (en) * | 2007-09-06 | 2012-12-26 | 索尼株式会社 | Speaker unit and audio output robot device |
-
2006
- 2006-05-09 CN CN 200610079824 patent/CN1863412A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101384095B (en) * | 2007-09-06 | 2012-12-26 | 索尼株式会社 | Speaker unit and audio output robot device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112438054B (en) | Bone conduction speaker and earphone | |
| CN204634039U (en) | loudspeaker assembly film and driver | |
| CN106507251B (en) | Stereo and FILTER TO CONTROL for multiple loudspeaker device | |
| CN1849842A (en) | Audio apparatus | |
| EP4086891A1 (en) | Acoustic diffusion generator | |
| US10368160B2 (en) | Speaker box | |
| US20150010173A1 (en) | Apparatus and method for providing a frequency response for audio signals | |
| TW200814827A (en) | Wind noise rejection apparatus | |
| TW201914312A (en) | Reflective cone and speaker | |
| US20150304745A1 (en) | A sound producing vibrating surface | |
| US20190082262A1 (en) | Continuous surround | |
| JP4240317B2 (en) | Speaker device and playback device | |
| US20170195797A1 (en) | Planar loudspeaker membrane for wide frequency range sound reproduction and speaker utilizing same | |
| CN1863412A (en) | Speaker apparatus and reproducing apparatus | |
| CN1625919A (en) | Speaker for super-high frequency range reproduction | |
| CN114341974A (en) | Noise reduction apparatus and method | |
| KR101614509B1 (en) | Sound speaker of vibration type | |
| US11558690B2 (en) | Audio systems, devices, and methods | |
| RU2780549C2 (en) | Bone conductivity dynamic | |
| CN207692007U (en) | A kind of earphone | |
| CN1771763A (en) | System comprising sound reproduction means and ear microphones | |
| CN2826878Y (en) | Telescopic sound box and sound player and electronic device applying same | |
| US20140193002A1 (en) | Ported enclosure and automated equalization of frequency response in a micro-speaker audio system | |
| Dodd | Optimum diaphragm and waveguide geometry for coincident source drive units | |
| TWM495051U (en) | Improved microphone structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20061115 |