CN2315749Y - Power-operated loudspeaker - Google Patents
Power-operated loudspeaker Download PDFInfo
- Publication number
- CN2315749Y CN2315749Y CN 97246402 CN97246402U CN2315749Y CN 2315749 Y CN2315749 Y CN 2315749Y CN 97246402 CN97246402 CN 97246402 CN 97246402 U CN97246402 U CN 97246402U CN 2315749 Y CN2315749 Y CN 2315749Y
- Authority
- CN
- China
- Prior art keywords
- voice coil
- frame
- loudspeaker
- skeleton
- air gap
- 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
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to an electric loudspeaker which comprises a magnetic conductivity frame, a voice coil and a vibrating diaphragm, wherein, the frame is a rotating body, and the shape of the cross section of the frame forms an E shape. An air gap is arranged between a central column and an outer ring of the frame. More than two radial tile-shaped magnets which are magnetized are fixed at the inner lateral surface of the air gap. The voice coil is positioned between the magnets and the central column. The voice coil is correspondingly fixed by a waviness frame. The utility model has the advantages of uniform distribution of magnetic force lines, little magnetic leakage and little distortion. The loudspeaker has the short voice coil, long stroke, large power, large dynamic state and low distortion.
Description
A kind of electrodynamic loudspeaker relates to moving-coil, moving plate or moving-wire type transducer.
Chinese patent has been announced a kind of " broadband loudspeaker " for No. 94247816.9, constitutes magnetic circuit system by the magnet steel of axial magnetized and the field heart conducting magnetic column that upper and lower magnetic conductive board reaches and following magnetic conductive board joins.The bass vibration component is housed on the basin frame, the high pitch vibration component is installed at heart conducting magnetic column on the scene top, and connected mode is for raising fixedly high pitch latch plate of heart conducting magnetic column, and the high pitch voice coil loudspeaker voice coil is connected on high pitch latch plate outer, tweeters diaphragms is contained in above the high pitch voice coil loudspeaker voice coil, and high pitch voice coil loudspeaker voice coil and bass voice coil loudspeaker voice coil place same magnetic gap.This loud speaker can improve frequency bandwidth to a certain extent, but because the magnetic line of force skewness of magnetic gap top and the bottom still can cause distortion.
The purpose of utility model provides a kind of electrodynamic loudspeaker, and it can effectively overcome magnetic gap top and the bottom magnetic line of force skewness and the distortion that causes.
Utility model adopts such technical scheme: this electrodynamic loudspeaker includes magnetic conduction skeleton, voice coil loudspeaker voice coil and vibrating diaphragm, described skeleton is that revolving body and cross sectional shape are the mountain font, constitute air gap between skeleton center pillar and the outer ring, watt shape magnet of two above radial magnetizings is fixed on the air gap medial surface, voice coil loudspeaker voice coil is between magnet and center pillar, and the ripple frame is with the voice coil loudspeaker voice coil relative fixed.
The utility model adopts watt shape magnet of multi-disc radial magnetizing, the magnetic line of force in the working gas gap is evenly distributed and leakage field little, avoided the distortion that becomes skewness to cause owing to magnetic gap upper and lower part magnetic force.Minor circle, long stroke, high-power, big dynamic, the low distortion of loud speaker have been realized.
The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.
The electrodynamic loudspeaker structural representation that Fig. 1 the utility model proposes for foundation.
Fig. 2 is the A-A cut-away view of Fig. 1.
Below in conjunction with drawings and Examples the electrodynamic loudspeaker that foundation the utility model proposes is described further.
As shown in Figure 1, the support of this electrodynamic loudspeaker (2) is fixed on the magnetic conduction skeleton (6).The magnetic conduction skeleton is a revolving body, and its cross section is the mountain font, is air gap (8) between skeleton center pillar (4) and the outer ring.Watt shape magnet (7) of radial magnetizing is fixed on the medial surface of air gap.At the packing ring (9) that preferably refills non-magnetic conduction between watt bottom of shape magnet and the skeleton.Voice coil loudspeaker voice coil (5) is positioned between skeleton center pillar (4) and watt shape magnet, and the one end links to each other with vibrating diaphragm (1).Ripple frame (3) is between voice coil loudspeaker voice coil and support, with the voice coil loudspeaker voice coil relative fixed.Referring to Fig. 2, watt shape magnet (7) of radial magnetizing has more than two, is 8 in the utility model again, and closely arranges between them.Described watt of shape magnet is fixed on the medial surface of the air gap (8) that is formed by skeleton center pillar (4) and outer ring.
Claims (2)
1, a kind of electrodynamic loudspeaker includes magnetic conduction skeleton, voice coil loudspeaker voice coil and vibrating diaphragm, it is characterized in that described skeleton is that revolving body and cross sectional shape are the mountain font, constitute air gap between skeleton center pillar and the outer ring, watt shape magnet of two above radial magnetizings is fixed on the air gap medial surface, voice coil loudspeaker voice coil is between magnet and center pillar, and the ripple frame is with the voice coil loudspeaker voice coil relative fixed.
2, electrodynamic loudspeaker according to claim 1 is characterized in that being equipped with non-magnetic conduction packing ring between watt bottom of shape magnet and skeleton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97246402 CN2315749Y (en) | 1997-11-28 | 1997-11-28 | Power-operated loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97246402 CN2315749Y (en) | 1997-11-28 | 1997-11-28 | Power-operated loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2315749Y true CN2315749Y (en) | 1999-04-21 |
Family
ID=33954606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97246402 Expired - Fee Related CN2315749Y (en) | 1997-11-28 | 1997-11-28 | Power-operated loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2315749Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413379C (en) * | 2000-09-22 | 2008-08-20 | 罗伯特·格伦伯格 | Direct coupling of waveguide to compression driver having matching slot shaped throats |
-
1997
- 1997-11-28 CN CN 97246402 patent/CN2315749Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413379C (en) * | 2000-09-22 | 2008-08-20 | 罗伯特·格伦伯格 | Direct coupling of waveguide to compression driver having matching slot shaped throats |
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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 |