CN1013725B - Plate loudspeaker - Google Patents
Plate loudspeakerInfo
- Publication number
- CN1013725B CN1013725B CN 88106344 CN88106344A CN1013725B CN 1013725 B CN1013725 B CN 1013725B CN 88106344 CN88106344 CN 88106344 CN 88106344 A CN88106344 A CN 88106344A CN 1013725 B CN1013725 B CN 1013725B
- Authority
- CN
- China
- Prior art keywords
- reinforcement
- voice coil
- vibrating diaphragm
- exciting
- diaphragm
- 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
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Abstract
The present invention relates to panel loudspeaker, particularly to a magnetic movable coil type loudspeaker. Ribs are directly or indirectly added to a panel vibrating diaphragm by the present invention, the condition of partition vibration of the vibrating diaphragm is improved when the panel speaker works, the phenomenon of dividing vibration is greatly reduced, and thus, the fidelity of the loudspeaker is enhanced.
Description
The present invention relates to a kind of loud speaker, particularly the magnetic coil-moving speaker belongs to the electroacoustic techniques field.
The main design objective of loud speaker is the vibration of cutting apart that as far as possible reduces himself, so that improve fidelity.Thereby people mainly are to wish to reduce it to cut apart vibration to the improvement of loud speaker.Cut apart the main vibrating diaphragm of vibration from loud speaker.Because vibrating diaphragm is not ideal rigid body, therefore, when speaker operation, vibrating diaphragm removes as the single-piece piston vibration, also can or make subregion with the concentric circles partition and vibrate with partition radially.This phenomenon of cutting apart vibration that is called provides and does not wish the voice signal that occurs, has reduced the fidelity effect of loud speaker.
Panel speaker is a kind of loud speaker that development in recent years is got up, and under the condition that vibrating diaphragm weight is determined, plate diaphragm can be made significantly thicker, thereby has higher rigidity.But the still first method of plate diaphragm is avoided the above-mentioned vibration problem of cutting apart.For many years, people mainly solve vibrating diaphragm rigidity problem by the material that improves plate diaphragm.In addition, the honeycomb fashion vibrating diaphragm that adopts honeycomb is also arranged in the prior art.But, the complex process of honeycomb fashion vibrating diaphragm.In addition, overweight in order not make vibrating diaphragm, the structural material that constitutes the honeycomb fashion vibrating diaphragm as thin as a wafer, this can cause local fold or distortion, thereby influences tonequality.
The objective of the invention is by improvement, improve the rigidity of vibrating diaphragm the panel speaker diaphragm structure.
Technical solution of the present invention is as follows:
Provide a kind of, voice coil loudspeaker voice coil 2, band reinforcement or not with the plate diaphragm 3 of reinforcement by magnetic circuit system 1, centring disk 4, ring 6, the panel speaker that speaker frame 7 constitutes is characterized in that also comprising the reinforcement exciting basin that has reinforcement of indirectly vibrating diaphragm being strengthened improving vibrating diaphragm rigidity.
Describe the embodiment of the technology of the present invention in detail below in conjunction with accompanying drawing.The technology of the present invention has two accompanying drawings.
Fig. 1 is a kind of panel speaker schematic diagram.
Fig. 2 has the exciting basin of reinforcement and the schematic diagram that combines of plate diaphragm.
Fig. 2-1 is for removing the vertical view behind the plate diaphragm among Fig. 2.
In panel speaker shown in Figure 1,1 is magnetic circuit system, and 2 is voice coil loudspeaker voice coil, and 3 is plate diaphragm, and 4 is centring disk, and 5 is the exciting basin, and 6 is ring, and 7 is speaker frame, and 8 is exciting basin flange, and 9 is radially radial reinforcement on the exciting dish.
Magnetic circuit system 1, voice coil loudspeaker voice coil 2, centring disk 4, ring 6 and speaker frame 7 are known technology, are not repeated here.
Voice coil loudspeaker voice coil 2 is contained in the magnetic gap of magnetic circuit system 1, and by being connected centring disk 4 centering on the speaker frame 7.Voice coil loudspeaker voice coil 2 can directly contact with vibrating diaphragm 3, also can contact with vibrating diaphragm indirectly by a changeover portion that is referred to as exciting basin 5.Shown in Fig. 1 is latter event.Vibrating diaphragm 3 passes through ring 6 suspension support on speaker frame 7.
The embodiment of the panel speaker that the technology of the present invention is related has two classes, and the first kind is for directly strengthening vibrating diaphragm.Second class is for to strengthen vibrating diaphragm indirectly by the reinforcement on the exciting basin.The following first kind of narration earlier embodiment.
By increasing the panel speaker that reinforcement is directly strengthened vibrating diaphragm on the vibrating diaphragm: can reinforcement on the plate diaphragm.Reinforcement can be arranged on the surface of plate diaphragm, also can be as the skeleton of vibrating diaphragm.
Being arranged in the lip-deep reinforcement of plate diaphragm can arrange along hoop, can radially arrange, also can mixed-arrangement, promptly can have hoop and two kinds of reinforcements radially on the vibrating diaphragm surface simultaneously.Reinforcement can be arranged on two faces of vibrating diaphragm, also can be arranged on any one face.The lip-deep reinforcement of vibrating diaphragm can compression molding.
Reinforcement as the vibrating diaphragm skeleton is applicable to interlayer vibrating diaphragm situation.Be that plate diaphragm is a sandwich structure piece.For example, can do the vibrating diaphragm face, support by skeleton between the film, form the interlayer plate diaphragm with flat plate with the roughly the same film of two block sizes.Skeleton or constitute by many diametral ribs; Or constitute by many hoop ribs; Or add one or more hoop rib by many diametral ribs and constitute.The vibrating diaphragm of this class panel speaker can directly be connected with voice coil loudspeaker voice coil, also can not be connected with voice coil loudspeaker voice coil with the exciting basin of reinforcement by one.
Narrate the second class embodiment, the i.e. panel speaker of indirectly vibrating diaphragm being strengthened by the reinforcement on the exciting basin below:
The plate diaphragm of this class loud speaker is connected with voice coil loudspeaker voice coil by a changeover portion that is referred to as the exciting basin, has reinforcement on the exciting basin.Adopt the panel speaker of this structure, have the vibrating diaphragm of raising rigidity, simultaneously the fairly simple again advantage of manufacturing process.The magnetic circuit system of this panel speaker, voice coil loudspeaker voice coil, centring disk, ring and speaker frame are known technology.Voice coil loudspeaker voice coil is contained in the magnetic gap of magnetic circuit system, and by being connected the centring disk centering on the framework.Voice coil loudspeaker voice coil contacts with vibrating diaphragm indirectly by a changeover portion that is referred to as the exciting basin.On the framework of panel speaker, the exciting basin has reinforcement to vibrating diaphragm by the ring suspension support.
Fig. 2 and remove plate diaphragm 3 after vertical view 2-1 represent a kind of exciting basin that has radial reinforcement radially, diagram exciting basin 5 is approximate Frusto-conical thin walled shells.The end that its diameter is bigger has flange 8, and plate diaphragm 3 is connected with exciting basin 5 by flange.Have reinforcement 9 on the exciting basin, particularly have reinforcement on the flange of exciting basin.Reinforcement 9 on the flange makes flange have higher stiffness, thereby is contained in the reinforcement that plate diaphragm 3 on the flange obtains flange, and its stiffness is improved.It is selected that factors such as reinforcement quantity, layout, cross sectional shape and material on the flange can be produced needs and process conditions according to loud speaker.For example, can be with radially reinforcement on the flange, ring-stiffened or radially with hoop mixing reinforcement.Reinforcement can be arranged in flange two above on, also can be arranged on any of two faces.The cross-sectional geometry of reinforcement and size can be selected according to the design needs.For example, can select solid reinforcement or hollow reinforcement for use is the thin-wall construction reinforcement.Reinforcement can be with exciting basin die forming.The plate diaphragm of this kind structure can be with reinforcement.
Exciting basin and vibrating diaphragm can adopt paper pulp or other composite material to make.
The advantage of the technology of the present invention is to have improved the rigidity of vibrating diaphragm by giving directly or indirectly the plate diaphragm reinforcement, make vibrating diaphragm obtain subregion and strengthen, thereby when work, the diaphagras situation is greatly improved.
Claims (3)
1, a kind of panel speaker, by magnetic circuit system 1, voice coil loudspeaker voice coil 2, plate diaphragm 3, centring disk 4, ring 6 and speaker frame 7 constitute, and it is characterized in that also comprising the exciting dish 5 of indirectly plate diaphragm 3 being strengthened, connected the band reinforcement of voice coil loudspeaker voice coil 2 and plate diaphragm 3.
2, panel speaker according to claim 1, the exciting dish 5 that it is characterized in that described band reinforcement are the approximate Frusto-conical thin walled shells that have the reinforcement flange, and exciting dish 5 is connected with plate diaphragm 3 by the reinforcement flange.
3, panel speaker according to claim 1 and 2 is characterized in that the reinforcement on described exciting dish 5 flange is a thin-wall construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88106344 CN1013725B (en) | 1988-09-01 | 1988-09-01 | Plate loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88106344 CN1013725B (en) | 1988-09-01 | 1988-09-01 | Plate loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1040900A CN1040900A (en) | 1990-03-28 |
| CN1013725B true CN1013725B (en) | 1991-08-28 |
Family
ID=4834203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88106344 Expired CN1013725B (en) | 1988-09-01 | 1988-09-01 | Plate loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1013725B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1780496B (en) * | 2004-11-19 | 2011-04-13 | 朱树同 | Sounding membrane board of loundspeaker and its manufacture method |
| CN201114756Y (en) * | 2006-12-11 | 2008-09-10 | 深圳市兰光进出口有限公司 | A vibration film surrounding push flat plate speaker |
| CN103873992A (en) * | 2014-02-26 | 2014-06-18 | 谭红梅 | Method and device for improving power of loudspeaker driver |
| CN103873991A (en) * | 2014-02-26 | 2014-06-18 | 谭红梅 | Method and device for broadening frequency responding range of loudspeaker diver |
-
1988
- 1988-09-01 CN CN 88106344 patent/CN1013725B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1040900A (en) | 1990-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| 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 |