CN2514606Y - Flat vibrating diaphragm loudspeaker - Google Patents
Flat vibrating diaphragm loudspeaker Download PDFInfo
- Publication number
- CN2514606Y CN2514606Y CN 01269929 CN01269929U CN2514606Y CN 2514606 Y CN2514606 Y CN 2514606Y CN 01269929 CN01269929 CN 01269929 CN 01269929 U CN01269929 U CN 01269929U CN 2514606 Y CN2514606 Y CN 2514606Y
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- CN
- China
- Prior art keywords
- vibrating membrane
- utility
- diaphragm
- model
- magnetic sheet
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- Expired - Fee Related
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a flat diaphragm loudspeaker, comprising a magnet and a diaphragm, wherein the magnet is two parallel magnetic plates which are arranged in the same polarity; the diaphragm is a flat diaphragm which is disposed between the two parallel magnetic plates and has equal distance with the two magnetic plates; and two side surfaces of the diaphragm are provided with conductive metal foils which assume the electric connection condition. The parallel magnetic plate can be in various shapes such as square, and round and the like, and a plurality of holes are regularly arranged on the magnetic plates. The metal foils of the diaphragm are arranged in various shapes such as bar, round, and ellipse and the like, and the foil bars of the metal foils correspond to the central positions of the holes of the magnetic plates. In addition, the utility model is also provided with a dustproof film and a screened cover, which are used to resist dust and fix the above components. The structure of the utility model can make the loudspeaker to be quite thin, and simultaneously the structure is simple and the cost is lower. Moreover, the utility model has wide frequency response range, applicable for all audio frequency ranges.
Description
Technical field
The utility model relates to a kind of acoustic-electric conversion equipment, particularly a kind of plate diaphragm loud speaker without voice coil loudspeaker voice coil.
Background technology
Loud speaker and the similar electroacoustic component used always on the electricity, for example buzzer, earphone etc., all to be the peviform vibrating membrane made with materials such as paper, polyester materials be connected with voice coil as voice coil loudspeaker voice coil major part, and voice coil loudspeaker voice coil energising back drives the vibrating membrane vibration sounding in the magnetic field internal vibration.Or utilize piezoceramic material to drive the vibrating body sounding according to distinctive piezoelectric property.This class electroacoustic component ubiquity frequency response, dynamic range are narrow, reaction sensitivity, complex structure, bulky problem inadequately.When practical application, often to will organize the elements combination of different response ranges more, and will cooperate different drive circuits, just can reach desirable instructions for use, cause structure very complicated, cost is high.
Deficiency at above traditional electrical sound component, people attempt with loud speaker manufacture thinner, littler, but general still by voice coil loudspeaker voice coil drive vibrating membrane vibration sounding, this type of loud speaker can't break away from the structure of conventional loudspeakers, can not be called real panel speaker.And panel speaker truly is a kind of electrostatic loudspeaker, promptly uses electric field force between flat board to drive loud speaker as the pole plate vibration sounding of vibrating membrane.This electrostatic loudspeaker has broken away from the structure of conventional loudspeakers fully, but as far as is known, this class technology is also very immature, and structure and drive circuit are all unreasonable, still can't replace traditional loud speaker.Moreover electrostatic loudspeaker must have independent driving circuits could work, and complex structure, cost are very high.
The utility model content
The purpose of this utility model is to provide a kind of plate diaphragm loud speaker, not only has the slate structure, the acoustic frequency response wide ranges, and simple in structure, cost is lower.
Plate diaphragm loud speaker of the present utility model comprises magnet and vibrating membrane, it is characterized in that: described magnet is two parallel magnetic sheets, be the polarity aligned identical, described vibrating membrane is a plate diaphragm, be positioned at the centre of two parallel magnetic sheets, equidistant with two magnetic sheets, the two sides of this vibrating membrane are provided with conductive metal foil, and the conductive metal foil of these both sides is status of electrically connecting.
Above-mentioned parallel magnetic sheet can be different shapes such as square, circle, also can be irregularly shaped, and rule is arranging most holes on the magnetic sheet; Vibrating membrane has the shape identical with magnetic sheet, and metal forming is different shapes such as bar palisade, circle, ellipse arranges, and the chaff of metal forming is corresponding with the position at the center of the hole of magnetic sheet.
Above-mentioned the utility model also comprises dustproof film and guard, dustproof film is arranged in the gap of each magnetic sheet and vibrating membrane, be used to prevent that dust from entering the pollution vibrating membrane, vibrating membrane separated with magnetic sheet prevent to produce friction that the shape of this dustproof film is identical with vibrating membrane.Guard is positioned at the outside of two magnetic sheets, and with the fixed-site of magnetic sheet and vibrating membrane.Guard can be made with various materials such as metal, wood, plastics.
Flat-plate loudspeaker of the present utility model is not established voice coil loudspeaker voice coil, and vibrating membrane is real slab construction, therefore loud speaker can be done very thin, uses and be fit to various electrical equipment; Simultaneously because of drive circuit that need not special use, simple in structure, cost is lower; It is wide that the utility model also has frequency response range, is fit to all audioranges.
Description of drawings
Fig. 1 is a front schematic view of the present utility model;
Fig. 2 is a cross-sectional view of the present utility model;
Fig. 3 is the utility model magnetic sheet structural representation;
Fig. 4 is a vibrating membrane structural representation of the present utility model.
Embodiment
As shown in Figure 1, be the front appearance figure of the panel speaker of the utility model embodiment, Fig. 2 is a cross-sectional view of the present utility model.Panel speaker of the present utility model comprises two parallel magnetic sheet 2 and vibrating membranes 4.Wherein those parallel magnetic sheets 2 are the polarity aligned identical, and vibrating membrane 4 is positioned at the centre of two parallel magnetic sheets 2, and are equidistant setting, and conductive metal foil is respectively established in the both sides of this vibrating membrane 4, and those metal formings are mutual status of electrically connecting.
As shown in Figure 3, above-mentioned magnetic sheet 2 is square, can certainly be different shapes such as circle, also can be irregularly shaped.Rule is arranging most holes 6 on the magnetic sheet 2.Those parallel magnetic sheets 2 are the polarity aligned identical, i.e. the extremely corresponding N utmost point of N, the extremely corresponding S utmost point of S.Each hole forms a little magnetic field, has the magnetic line of force to pass.
As shown in Figure 4, vibrating membrane 4 has the shape identical with magnetic sheet 2, present embodiment is square, it comprises that square plate vibration membrane body 8 and edge are affixed on the metal forming 9 of the bar palisade on this plate vibration membrane body 8, one end of this metal forming 9 is connected to terminals 7, the other end is then walked around the other end of vibrating membrane body 8, receives on the other terminals, so that introduce voice-frequency signalling current.This metal forming 9 is stripe-arrangement, and the chaff of metal forming 9 is corresponding with the center of magnetic sheet 2 holes 6.
As shown in Figure 2, for making the position relative fixed of magnetic sheet 2 and vibrating membrane 4, also be provided with guard 1 outside magnetic sheet 2, have hole on the guard 1, the hole on this guard 1 is corresponding with hole on the magnetic sheet 2.This guard 1 is with the position relative fixed of magnetic sheet 2 and vibrating membrane 4.For guaranteeing that vibrating membrane 4 does not produce friction by contamination by dust or with magnetic sheet 2, also is provided with dustproof film 3 between vibrating membrane 4 and magnetic sheet 2.Above-mentioned vibrating membrane 4 is fixed by isolating pad 5 and guard 1 with dustproof film 3.
Plate diaphragm loud speaker of the present utility model has the slate structure, without voice coil loudspeaker voice coil and skeleton, cone etc.After installing, in the middle of vibrating membrane 4 was positioned at, respectively there was a magnetic sheet 2 both sides, are to be arranged in parallel.Because the polarity aligned identical of two magnetic sheets 2, so the magnetic field that two magnetic sheets are 2 is state at a stalemate, after the metal forming 9 of vibrating membrane 4 is introduced tone currents, electric current can pass through each strip metal paper tinsel 9, corresponding because of the position of metal forming 9 with the position of the hole 6 of magnetic sheet 2, and respectively having the magnetic line of force, passes each hole 6, the electric current that passes through on the metal forming 9 just cutting magnetic line produces vibration, generation has the effect of voice coil loudspeaker voice coil one by one, and those metal formings 9 drive 8 vibrations of vibrating membrane body.Make each hole 6 have the effect that a Xiao Yang goes up device, be equivalent to 100 little loud speakers at sounding if each magnetic sheet 2 has 50 holes,
Above-mentioned the utility model produces the effect of a plurality of voice-coil speakers by being arranged on metal forming on the plate diaphragm and the corresponding a plurality of holes of magnetic sheet, and that not only can make is very thin, and it is wide, simple in structure also to have a frequency response range, the characteristics that cost is low.
Claims (5)
1. plate diaphragm loud speaker, comprise magnet and vibrating membrane, it is characterized in that: described magnet is two parallel magnetic sheets, be the polarity aligned identical, described vibrating membrane is positioned at the centre of two parallel magnetic sheets, and be equidistant setting, and the both sides flat board of this vibrating membrane is respectively established conductive metal foil, and those metal formings interconnect.
2. plate diaphragm loud speaker according to claim 1 is characterized in that: also comprises dustproof film, is arranged between each magnetic sheet and the vibrating membrane, and parallel with vibrating membrane.
3. plate diaphragm loud speaker according to claim 1 is characterized in that: also comprise guard, be arranged on the magnetic sheet outside.
4. according to claim 1,2 or 3 described plate diaphragm loud speakers, it is characterized in that: last several the regularly arranged holes that is provided with of those magnetic sheets, this metal forming can be shapes such as bar palisade, circle, ellipse arranges, the center of the corresponding magnetic sheet hole of each chaff.
5. according to claim 1,2 or 3 described plate diaphragm loud speakers, it is characterized in that: also be provided with isolating pad, between vibrating membrane and dustproof film and dustproof film and guard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01269929 CN2514606Y (en) | 2001-12-29 | 2001-12-29 | Flat vibrating diaphragm loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01269929 CN2514606Y (en) | 2001-12-29 | 2001-12-29 | Flat vibrating diaphragm loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2514606Y true CN2514606Y (en) | 2002-10-02 |
Family
ID=33675665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01269929 Expired - Fee Related CN2514606Y (en) | 2001-12-29 | 2001-12-29 | Flat vibrating diaphragm loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2514606Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024614A (en) * | 2011-09-20 | 2013-04-03 | 深圳富泰宏精密工业有限公司 | Speaker protecting component and portable electronic device employing same |
| CN105025420A (en) * | 2014-04-28 | 2015-11-04 | 全艺电子(昆山)有限公司 | Magnetoconductivity oscillating plate used for flat-type loudspeaker |
| WO2023088072A1 (en) * | 2021-11-16 | 2023-05-25 | 天津大觥科技有限公司 | Diaphragm and loudspeaker device |
-
2001
- 2001-12-29 CN CN 01269929 patent/CN2514606Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024614A (en) * | 2011-09-20 | 2013-04-03 | 深圳富泰宏精密工业有限公司 | Speaker protecting component and portable electronic device employing same |
| CN105025420A (en) * | 2014-04-28 | 2015-11-04 | 全艺电子(昆山)有限公司 | Magnetoconductivity oscillating plate used for flat-type loudspeaker |
| WO2023088072A1 (en) * | 2021-11-16 | 2023-05-25 | 天津大觥科技有限公司 | Diaphragm and loudspeaker device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |