CN206212244U - Plat sound box - Google Patents
Plat sound box Download PDFInfo
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- CN206212244U CN206212244U CN201620930411.5U CN201620930411U CN206212244U CN 206212244 U CN206212244 U CN 206212244U CN 201620930411 U CN201620930411 U CN 201620930411U CN 206212244 U CN206212244 U CN 206212244U
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- vibrating diaphragm
- horn
- picture frame
- phase
- sound box
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Abstract
Utility model is related to a kind of plat sound box, including for fixing the picture frame of the plat sound box；Multiple loudspeaker drives being electrically connected to each other are fixed with plane behind the picture frame, there is vibrating diaphragm before the picture frame, the vibrating diaphragm is bonded to each other with loudspeaker drive, and the phase-reversing tube between the picture frame bottom and vibrating diaphragm.The utility model is played a supporting role due to increasing elasticity preferably material on plate diaphragm periphery to vibrating diaphragm, controls the amplitude of vibrating diaphragm, reduces the lateral displacement of vibrating diaphragm, better tightness.So that plat sound box bass effect is effectively improved, effectively eliminate all-bottom sound short circuit phenomenon, effectively reduce distortion, in the horn-like open inner surface setting pit array structure of phase-reversing tube, air drag is reduced, is accelerated air-flow and is passed through, it is to avoid the noise that friction is produced, make audio amplifier that there is more preferable low frequency acoustical quality, and it is also more attractive in appearance in appearance.
Description
Technical field
The utility model is related to sound system technical field, more particularly to a kind of plat sound box.
Background technology
Traditional audio amplifier volume is larger, and directive property is narrower, as a kind of point sound source, is appreciating some sound field wider range
Grand sound field cannot be reappeared during music.Plat sound box is a kind of flat panel speaker, this loudspeaker and traditional cone basin formula
Loudspeaker is different, and the vibrating diaphragm of flat panel speaker is flat.Flat panel speaker reduction tonequality is good, wide frequency range, distortion
Small, transient response is good.Because the oscillating flat plate and circumferential side frame of plat sound box are open, so before its oscillating flat plate
There is acoustic short circuit phenomenon in low-frequency sound wave, with the low-frequency sound wave at the back side so the maximum defect of such plat sound box is exactly LF-response
It is too poor.
Utility model content
The purpose of this utility model is to provide a kind of inverted phase type plat sound box, with preferable LF-response and bass
Matter effect.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of plat sound box is designed, including for fixing the picture frame of the plat sound box；In plane behind the picture frame
Be fixed with one or more loudspeaker drive being electrically connected to each other, there is vibrating diaphragm before the picture frame, the vibrating diaphragm with raise
Sound device driver is bonded to each other；It is characterized in that：The picture frame and vibrating diaphragm periphery are connected with high resiliency ring；
Phase-reversing tube is provided between the picture frame bottom and vibrating diaphragm, the phase-reversing tube includes cylinder and before cylinder
The horn-like opening of side, the horn-like open inner surface is placed with the pit array structure being made up of some circular hole pits.
Further, the horn-like open section is circle；Or, it is described horn-like open for one kind is justified by rear end
Tee section forward end elliptic cross-section seamlessly transits the horn-like opening for gradually expanding.
Further, the cylinder is integrally formed composition monoblock type phase-reversing tube with horn-like opening；Or, the circle
Cylinder connects and composes split type phase-reversing tube with horn-like opening by easy assembling-disassembling structure.
The utility model has the advantage of：Vibrating diaphragm is played due to increasing elasticity preferably material on plate diaphragm periphery
Supporting role, controls the amplitude of vibrating diaphragm, reduces the lateral displacement of vibrating diaphragm, better tightness.Due to inside plat sound box
The phase-reversing tube of special shape is designed, the low frequency signal of metope reflecting part is make use of so that plat sound box bass effect is had
Effect improves, and effectively eliminates all-bottom sound short circuit phenomenon, effectively reduces distortion.Innovatively in horn-like open inner surface
Pit array structure is set, air drag is reduced, is accelerated air-flow and is passed through, it is to avoid " puff titters puff and titters " noise that friction is produced, make
Audio amplifier has more preferable low frequency acoustical quality, and also more attractive in appearance in appearance.It is placed with using in horn-like open inner surface
The pit array structure being made up of some circular hole pits is as follows on the principle that tonequality influences：If horn-like open inner surface is
Smooth cambered surface, when streaming, the evening that Transitional And Turbulent Flow occurs, regular flow corresponding with turbulent flow is referred to as laminar flow, and wake boundary
Layer is easier to flow separation phenomenon (i.e. streamline leaves the surface of ball), and heading on for smooth arc-shaped surface forms higher-pressure region, back side shape
Into larger low-pressure area, very big resistance (pressure drag) is produced.And horn-like open 12 inner surface to be placed with circular hole recessed
During hole, circular hole pit promotes Transitional And Turbulent Flow to occur, and turbulent boundary layer is not susceptible to flow separation phenomenon, so that horn-like open arc
The low-pressure area of face behind is small, reduces resistance.The frictional ratio laminar flow of turbulent flow is big, but compared with form drag, rising must act on very little, always
Resistance still diminish.The utility model is used in this design on phase-reversing tube, reduces air drag, accelerates air-flow and leads to
Cross, it is to avoid " puff titters puff and titters " noise that friction is produced, make audio amplifier that there is more preferable low frequency acoustical quality, and on appearance
It is more attractive in appearance.
Brief description of the drawings
Fig. 1 is the front section view of the structural representation of plat sound box of the present utility model；
Fig. 2 is the side sectional view of the structural representation of plat sound box of the present utility model；
Fig. 3 is the phase-reversing tube structural representation of the utility model embodiment 1；
Fig. 4 is the structural representation of the phase-reversing tube of the utility model embodiment 2；
Fig. 5 is the main view figure structure schematic representation of phase-reversing tube of the present utility model；
Fig. 6 is the structural representation of this loudspeaker drive.
1 --- frame；2 --- loudspeaker drive；201 --- upper cover plate；202 --- voice coil loudspeaker voice coil；203 --- U iron；
204 --- flexible suspension system；205 --- magnetic in rare earth；3 --- phase-reversing tube；301 --- cylinder；302 --- it is horn-like spacious
Mouthful；303 --- circular hole pit；4 --- PU sides ring；5 --- plate diaphragm.
Specific embodiment
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.
Embodiment 1
A kind of very thin thickness of plat sound box, can as a width draw hung on a wall.Have in plat sound box one or
Person's multiple ultra-thin electromagnetic formula loudspeaker drives 2, the mode of connection of this multiple loudspeaker drive 2 according to the impedance of voice coil loudspeaker voice coil 202 with
And the difference of quantity, can be in series or in parallel or the mode of connection in series-parallel combination.The loudspeaker drive 2 of plat sound box
Photo frame base plane is installed on, the inside in the face of photo frame patch wall exactly when audio amplifier is hung on wall.Matter is used before photo frame
The very light intensity of amount plate material higher does vibrating diaphragm, usually using polyurethane foam material or honeycomb cardboard material compared with
It is many.It is general Nian Jie with high temperature resistant glue between plate diaphragm and loudspeaker drive 2.The diaphragm surface of plat sound box can be located
Manage into one for decorate picture.Loudspeaker drive 2 is equivalent to a common ultrathin loudspeaker unit and gets rid of in fact
Vibrating diaphragm, by U-shaped iron cover, rare earth material magnet, voice coil loudspeaker voice coil 202, the upper cover plate 201 of voice coil loudspeaker voice coil 202, (the such as bullet of flexible suspension system 204
Ripple) etc. composition.Plate diaphragm 5 bonds together with the upper cover plate 201 of voice coil loudspeaker voice coil 202 of loudspeaker drive 2.
Increase a circle elasticity preferably ring on the periphery of plate diaphragm 5, the material of ring can be rubber edge.Ring is
The suspended portion of loudspeaker, the cross sectional shape of ring is half-circle-arc shape, is connected between picture frame and vibrating diaphragm.There is plate diaphragm 5
The elastic ring on periphery, the better tightness of plat sound box, and elastic ring are played a supporting role to vibrating diaphragm, are controlled
The amplitude of vibrating diaphragm, reduces the lateral displacement of vibrating diaphragm.Built-in phase-reversing tube 3 of the present utility model uses horn-type air intake vent, opens
Mouth backward, that is, is open to metope, and overcast full bass is obtained by the reflection of metope.Phase-reversing tube 3 can do various shapes
Shape, such as duct type, spirally.Its diameter determines the lower frequency limit of whole audio amplifier with the numerical value of length.
The front section view of the structural representation of plat sound box of the present utility model as shown in Fig. 2, it is seen that it is built-in fall
The structure of phase pipe, Fig. 1 includes that 1,8 loudspeaker drives 2 of frame of plat sound box are arranged in two rows in picture frame, often goes
4.Built-in phase-reversing tube 3 is located between two row loudspeaker drives 2, and the phase-reversing tube 3 includes cylinder 301 and positioned at cylinder
The horn-like opening in 301 fronts, the horn-like open inner surface is placed with the pit battle array being made up of some circular hole pits 303
Array structure；The distal opening of 3 cylinder of phase-reversing tube 301 backward, towards the back side of picture frame, when picture frame hung on a wall, the circle of phase-reversing tube 3
The distal opening of cylinder 301 is towards wall.
Described horn-like open 302 gradually expand for one kind is seamlessly transitted by rear end circular cross-section forward end elliptic cross-section
Horn-like open 302.
The cylinder 301 connects and composes split type phase-reversing tube 3 with horn-like open 302 by easy assembling-disassembling structure.
Fig. 2 is the side sectional view of the structural representation of plat sound box of the present utility model.The circle of Fig. 2 center sections
It is the section of built-in phase-reversing tube 3, Fig. 2 is symmetrical above and below on phase-reversing tube 3, has pliable rubber edge high or PU sides at two ends
Ring, and loudspeaker drive 2 section.It is planar diaphragm before flat audio amplifier.
There is audio amplifier to hang wall fixing hole at the back side of plat sound box, be the air-out of phase-reversing tube 3 in the middle at the audio amplifier back side
Mouthful.The air outlet of phase-reversing tube 3 changes in the position at the audio amplifier back side, the difference of the length according to phase-reversing tube 3.Fig. 6 is to raise one's voice
The structural representation of device driver 2, this is the side cross sectional views of loudspeaker drive 2, including the upper cover plate 201 of voice coil loudspeaker voice coil 202,
Voice coil loudspeaker voice coil 202, U iron 203, magnetic 205 and flexible suspension system 204 in rare earth, when corresponding electric signal is input into, due to the work of magnetic force
With loudspeaker drive 2 will do front-rear reciprocation movement, so as to drive the vibration sounding of plate diaphragm 5 50.
A kind of being seamlessly transitted by rear end circular cross-section forward end elliptic cross-section of the horn-like opening gradually expands
Horn-like opening.
The cylinder 301 connects and composes split type phase-reversing tube 3 with horn-like opening by easy assembling-disassembling structure.
Embodiment 2
The cylinder 301 is integrally formed composition monoblock type phase-reversing tube 3 with horn-like open 302.
Other technical schemes of the present embodiment are essentially identical with embodiment 1.The feature not laid down a definition in the present embodiment, uses
The explanation of embodiment 1, is no longer repeated herein.
Finally it should be noted that above example is merely to illustrate the technical solution of the utility model rather than to this practicality
The limitation of novel protected scope, although being explained in detail to the utility model with reference to preferred embodiment, the common skill of this area
Art personnel should be appreciated that can modify or equivalent to the technical solution of the utility model, without deviating from this practicality
The spirit and scope of new technique scheme.
Claims (3)
1. plat sound box, including for fixing the picture frame of the plat sound box；One is fixed with plane behind the picture frame
Or the loudspeaker drive that multiple is electrically connected to each other, there are vibrating diaphragm, the vibrating diaphragm and loudspeaker drive before the picture frame
It is bonded to each other；It is characterized in that：The picture frame and vibrating diaphragm periphery are connected with high resiliency ring；
Phase-reversing tube is provided between the picture frame bottom and vibrating diaphragm, the phase-reversing tube includes cylinder and in front of cylinder
Horn-like opening, the horn-like open inner surface is placed with the pit array structure being made up of some circular hole pits.
2. audio amplifier according to claim 1, it is characterised in that：The horn-like open section is circle；Or, it is described
Horn-like opening seamlessly transits the horn-like opening for gradually expanding for a kind of by rear end circular cross-section forward end elliptic cross-section.
3. audio amplifier according to claim 1, it is characterised in that：It is whole that the cylinder is integrally formed composition with horn-like opening
Body formula phase-reversing tube；Or, the cylinder connects and composes split type phase-reversing tube with horn-like opening by easy assembling-disassembling structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620930411.5U CN206212244U (en) | 2016-08-24 | 2016-08-24 | Plat sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620930411.5U CN206212244U (en) | 2016-08-24 | 2016-08-24 | Plat sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206212244U true CN206212244U (en) | 2017-05-31 |
Family
ID=58759991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620930411.5U Active CN206212244U (en) | 2016-08-24 | 2016-08-24 | Plat sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206212244U (en) |
-
2016
- 2016-08-24 CN CN201620930411.5U patent/CN206212244U/en active Active
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