CN201928421U - Flat-panel sound box - Google Patents
Flat-panel sound box Download PDFInfo
- Publication number
- CN201928421U CN201928421U CN2010206979766U CN201020697976U CN201928421U CN 201928421 U CN201928421 U CN 201928421U CN 2010206979766 U CN2010206979766 U CN 2010206979766U CN 201020697976 U CN201020697976 U CN 201020697976U CN 201928421 U CN201928421 U CN 201928421U
- Authority
- CN
- China
- Prior art keywords
- sound box
- picture frame
- diaphragm
- flat
- plat 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.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 11
- 241001503991 Consolida Species 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 2
- 239000011496 polyurethane foam Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000008093 supporting effect Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- VMQPMGHYRISRHO-UHFFFAOYSA-N benzvalene Chemical group C1=CC2C3C1C32 VMQPMGHYRISRHO-UHFFFAOYSA-N 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
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- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The utility model relates to a flat-panel sound box, which comprises a picture frame which is used for fixing the flat-panel sound box. One loudspeaker or a plurality of loudspeaker drivers which are electrically connected with each other are fixed on the plane of the rear surface of the picture frame. A diaphragm is arranged on the front surface of the picture frame and is bonded with the loudspeaker drivers. The flat-panel sound box additionally comprises a high-elasticity corrugated rim and an inverter tube, wherein the high-elasticity corrugated rim is connected around the picture frame and the diaphragm, and the inverter tube is arranged between the bottom of the picture frame and the diaphragm. The wind inlet of the inverter tube is of the shape of a horn which is gradually expanded. The opening of the inverter tube is backwards bent. Since a high-elasticity material is added around the flat-panel diaphragm to take a supporting effect to the diaphragm, the vibration amplitude of the diaphragm is controlled, the transverse displacement of the diaphragm is reduced and the sealing performance is better; and since the special-shaped inverter tube is arranged in the flat-panel and partial low-frequency signals are reflected by a wall surface, the bass effect of the flat-panel sound box is effectively improved, the situation of low-frequency short circuit is effectively eliminated and the distortion is effectively reduced.
Description
Technical field the utility model relates to a kind of plat sound box, relates in particular to a kind of plat sound box that improves bass effect.
Background technology tradition audio amplifier volume is bigger, and directive property is narrower, as a kind of point sound source, can't reappear grand sound field when appreciating the music of some sound field wider range.
Plat sound box is a kind of flat panel speaker, and this loud speaker is different with traditional awl benzvalene form loud speaker, and the shake film of flat panel speaker is flat.The flat panel speaker principle forms in the seventies according to the Man Geer acoustic transducer (Manger Schallwandler) that DrJose Wmanger (Joseph W Man Geer) is theoretical in bending waves in 1978 (Bending wave) and he invents.Two groups of vibrations voice coil loudspeaker voice coils are generally arranged below the shake film of flat panel speaker, and flat vibrations face moves back and forth in the cavity of similar " cylinder " and converts electrical energy into acoustic energy, the damping sheet and the air vent hole that move back and forth in addition at the edge of " cylinder ".Flat panel speaker reduction tonequality is good, wide frequency range, and distortion is little, and transient response is good.
Because the oscillating flat plate of plat sound box is open with frame all around, so there is the acoustic short circuit phenomenon in the low-frequency sound wave at the low-frequency sound wave of its oscillating flat plate front and the back side, so that the defective of this type of plat sound box maximum is exactly a LF-response is too poor.
Summary of the invention main purpose of the present utility model is to provide a kind of plat sound box, has LF-response preferably.
The utility model discloses a kind of plat sound box, comprise the picture frame that is used for fixing described plat sound box; Be fixed with the loudspeaker drive that one or more is electrically connected mutually on the plane of described picture frame back, there is vibrating diaphragm the front of described picture frame, and described shake film and loudspeaker drive bond together mutually; Also comprise the high resiliency ring that is connected described picture frame and vibrating diaphragm periphery.
The disclosed plat sound box of _ _ _ _ the utility model also comprises the phase-reversing tube between described picture frame bottom and vibrating diaphragm; The air intake vent of described phase-reversing tube is shaped as the bugle formula of expansion gradually, and opening is turned back backward.
The disclosed a kind of plat sound box of the utility model and since plate diaphragm periphery increase elasticity preferably material vibrating diaphragm is played a supporting role, controlled the amplitude of vibrating diaphragm, reduced the lateral displacement of vibrating diaphragm, better tightness.Owing to, utilized the low frequency signal of metope reflecting part at the phase-reversing tube of plat sound box indoor design special shape, make that the plat sound box bass effect is effectively improved, eliminated the all-bottom sound short circuit phenomenon effectively, effectively reduce distortion.
Description of drawings
Fig. 1 is the circuit connection schematic diagram of 8 loud speakers in the plat sound box.
Fig. 2 is the front section view of the structural representation of plat sound box of the present utility model.
Fig. 3 is the side sectional view of the structural representation of plat sound box of the present utility model.
Fig. 4 is the rear view of the structural representation of plat sound box of the present utility model.
Fig. 5 is the structural representation of loudspeaker drive.
Embodiment is described in further detail the utility model below in conjunction with the drawings and specific embodiments.
The very thin thickness of plat sound box can be drawn as a width of cloth and be hung on the wall.One or more ultra-thin electromagnetic loudspeaker driver is arranged in plat sound box, and the mode of connection of these a plurality of loudspeaker drives can be the mode of series connection or parallel connection or connection in series-parallel combination according to the difference of voice coil loudspeaker voice coil impedance and quantity.The loudspeaker drive of plat sound box is installed on the photo frame base plane, exactly the inside that photo frame pastes the face of wall when audio amplifier hangs on the wall.Vibrating diaphragm is done with the higher plate material of very light weight intensity in front at photo frame, generally is that employing polyurethane foam material or honeycomb cardboard material are more.Generally bonding between dull and stereotyped shake film and the loudspeaker drive with high temperature resistant glue.The vibrating diaphragm surface of plat sound box can be processed into a picture that is used to decorate.Loudspeaker drive just is equivalent to a common ultrathin loudspeaker unit in fact and gets rid of vibrating diaphragm, by U sections cover, and rare earth material magnet, voice coil loudspeaker voice coil, voice coil loudspeaker voice coil upper cover plate, flexible suspension system compositions such as (such as playing ripple).The assorted voice coil loudspeaker voice coil upper cover plate of plate diaphragm and loudspeaker drive bonds together.
Increase circle elasticity ring preferably at the plate diaphragm periphery, the material of ring can be the rubber limit.Ring is the suspended portion of loudspeaker, and the cross sectional shape of ring is a half-circle-arc shape, is connected between picture frame and the vibrating diaphragm.Elasticity ring that the plate diaphragm periphery has been arranged, the better tightness of plat sound box, and also the elasticity ring plays a supporting role to vibrating diaphragm, controlled the amplitude of vibrating diaphragm, reduced the lateral displacement of vibrating diaphragm.
Built-in phase-reversing tube of the present utility model adopts bugle formula air intake vent, opening backward, just opening is to metope, obtains overcast full bass by the reflection of metope.Phase-reversing tube can be done multiple shape, and is such as duct type, spiral.The numerical value of its diameter and length has determined the lower frequency limit of whole audio amplifier.
Be the circuit connection schematic diagram of 8 loud speakers in the dull and stereotyped photo frame loud speaker as shown in Figure 1, comprise loudspeaker Speaker1, Speaker2, Speaker3 and Speaker4, and loudspeaker SpeakerA, SpeakerB, SpeakerC and SpeakerD.Wherein Speaker1 is in parallel in twos respectively with SpeakerD with SpeakerC and Speaker4 with SpeakerB, Speaker3 with SpeakerA, Speaker2, and then connects to the order of Speaker4 according to Speaker1, Speaker2, Speaker3.
Be the front section view of the structural representation of plat sound box of the present utility model as shown in Figure 2, the structure of visible built-in phase-reversing tube, 10 is frames of plat sound box among the figure, 8 loudspeaker drives 20 are arranged in two row, 4 of every row in picture frame.Built-in phase-reversing tube 30 is between two row loudspeaker drives, and phase-reversing tube front end 301 is a horn mouth, and the terminal 302 turning openings of phase-reversing tube towards the back side of picture frame, are hung on the wall when picture frame backward, and the end openings of phase-reversing tube is towards wall.
Fig. 3 is the side sectional view of the structural representation of plat sound box of the present utility model.The circle of part is the cross section of built-in phase-reversing tube 30 between among Fig. 3, and Fig. 3 is symmetrical about in the of 30 about phase-reversing tube, and the cross section of high compliance rubber limit or PU edge break ring 40 and loudspeaker drive 20 is arranged at two ends.In the front of flat audio amplifier is planar diaphragm 50.
Fig. 4 is the rear view of the structural representation of plat sound box of the present utility model.Having audio amplifier to hang wall fixing hole 60 at the back side of plat sound box, is the air outlet of phase-reversing tube 30 in the middle at the audio amplifier back side.The air outlet of phase-reversing tube 30 is in the position at the audio amplifier back side, changes according to the difference of the length of phase-reversing tube.
Fig. 5 is the structural representation of loudspeaker drive, and this is the side cross-sectional schematic of loudspeaker drive, comprises voice coil loudspeaker voice coil upper cover plate 201, voice coil loudspeaker voice coil 202, magnetic 205 and flexible suspension system 204 in the U iron 203, rare earth.
When the input corresponding electric signal, because the effect of magnetic force, loudspeaker drive 20 will be done front-rear reciprocation movement, thereby drives plate diaphragm 50 vibration soundings.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1. a plat sound box comprises the picture frame that is used for fixing described plat sound box; Be fixed with the loudspeaker drive that one or more is electrically connected mutually on the plane of described picture frame back, there is vibrating diaphragm the front of described picture frame, and described shake film and loudspeaker drive bond together mutually; It is characterized in that, also comprise the high resiliency ring that is connected described picture frame and vibrating diaphragm periphery.
2. plat sound box as claimed in claim 1 is characterized in that, also comprises the phase-reversing tube between described picture frame bottom and vibrating diaphragm; The air intake vent of described phase-reversing tube is shaped as the bugle formula of expansion gradually, and opening is turned back backward.
3. plat sound box as claimed in claim 2 is characterized in that, described phase-reversing tube be shaped as duct type, perhaps spiral.
4. plat sound box as claimed in claim 2 is characterized in that, comprises the loudspeaker drive of connecting successively again after 8 parallel connections in twos; Described loudspeaker drive is arranged in two row, 4 of every row in picture frame; Described phase-reversing tube is between two row loudspeaker drives; Described phase-reversing tube front end is a horn mouth, and described phase-reversing tube end openings is towards the back side of described picture frame.
5. plat sound box as claimed in claim 2 is characterized in that, the material of described vibrating diaphragm is polyurethane foam material or honeycomb cardboard material.
6. plat sound box as claimed in claim 2 is characterized in that the material of described ring is a rubber.
7. plat sound box as claimed in claim 2 is characterized in that the cross sectional shape of described ring is a half-circle-arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206979766U CN201928421U (en) | 2010-12-28 | 2010-12-28 | Flat-panel sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206979766U CN201928421U (en) | 2010-12-28 | 2010-12-28 | Flat-panel sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201928421U true CN201928421U (en) | 2011-08-10 |
Family
ID=44432254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206979766U Expired - Fee Related CN201928421U (en) | 2010-12-28 | 2010-12-28 | Flat-panel sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201928421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015070573A1 (en) * | 2013-11-18 | 2015-05-21 | 歌尔声学股份有限公司 | Loudspeaker module |
-
2010
- 2010-12-28 CN CN2010206979766U patent/CN201928421U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015070573A1 (en) * | 2013-11-18 | 2015-05-21 | 歌尔声学股份有限公司 | Loudspeaker module |
| US9756416B2 (en) | 2013-11-18 | 2017-09-05 | Goertek Inc. | Loudspeaker module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20161228 |