CN2697994Y - Low frequency loudspeaker with improved diaphragm structure - Google Patents
Low frequency loudspeaker with improved diaphragm structure Download PDFInfo
- Publication number
- CN2697994Y CN2697994Y CN 03240793 CN03240793U CN2697994Y CN 2697994 Y CN2697994 Y CN 2697994Y CN 03240793 CN03240793 CN 03240793 CN 03240793 U CN03240793 U CN 03240793U CN 2697994 Y CN2697994 Y CN 2697994Y
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- Prior art keywords
- diaphragm
- coil
- cone
- bobbin
- utility
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- Expired - Fee Related
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Abstract
The utility model relates to a loudspeaker, comprising a casing, a membrane, an upper hanging component and a lower hanging component. The membrane is provided with a cone, the middle is provided with a hole which is used for containing the bobbin of a coil, and the lower side of a lower membrane is provided with a supporting baffle ring; the baffle ring is connected with the lower hanging component, which is used for keeping the basic verticality when the membrane up and down moving, and the inner side of the casing is provided with an assembly composed of the coil, the bobbin and an iron core. The utility model not only can provide a thinner membrane structure with reducing the whole size of the loudspeaker, but also can keep higher stability.
Description
Technical field
The utility model relates to a kind of woofer, more specifically, relates to a kind of woofer with improved diaphragm structure.
Background technology
Loudspeaker applications electromagnet come electric current is converted into sound.The design of low frequency dynamic loudspeaker had existed for a long time before the utility model, and never had big change basically.Its dynamic design comprises a kind of magnet arrangement, and one of them coil is suspended in the magnetic field or near the magnetic field, and coil is connected on the vibrating diaphragm.
Diaphragm must be made the similar piston of as a whole parts and move, and must be light as far as possible aspect weight.Therefore, used material must stablized geometrically, and must have certain shape need in order to reach required rigidity.In order to satisfy these designing requirements, diaphragm is made into particular geometric shapes so that intrinsic mechanical stability to be provided.A common shape of dynamic loudspeaker diaphragm is a cone.Authorize among the British patent No.3393 of John Stroh on December 4th, 1901, disclose this taper diaphragm made of paper first, it connects the edge of loud speaker, and except pursing up part, remainder all is flat.1908, Anton Pollak adopted a kind of sound coil support placed in the middle to improve the structure of moving coil loud speaker, and has obtained United States Patent (USP) on November 9th, 1909, and the patent No. is No.939, and 625.
Generally speaking, obtain maximum stability, the angle of cone should be bigger, thereby cone is higher, helps providing stability like this.But this diaphragm just can not be applied to the occasion in high-performance, little space.The diaphragm that it is taper that common loud speaker has an one side, and bottom suspender is connected the foot of cone.Because the installation dimension that whole underframe and coil block produce, this application scenario that has a conventional loud speaker of a conical taper in a side is very restricted.
In order to be applied to the occasion in little space, the diaphragm cone must be made more shallow shape, but can cause the mechanical bend of diaphragm like this, makes diaphragm can not play the effect of a single-piece piston.Under more powerful situation, this crooked meeting produces audio distortions, and causes the inefficacy of mechanical performance in the high power work process.Therefore in the loud-speaker diaphragm chip architecture of routine, intrinsic defective is that it can not stably be effective in the little space and does not produce bigger distortion.
The utility model content
The purpose of this utility model is to provide the assembly of a kind of diaphragm, suspender, sound coil and magnetic texure, and wherein required whole erection height reduces greatly, thereby also can satisfy low frequency performance in restricted application scenario.
According to the utility model, a kind of loud speaker is provided, comprise a shell, a diaphragm, go up suspender and a following suspender, it is characterized in that described diaphragm is a cone for one, the centre is provided with a hole, be used to hold the bobbin of a coil, and be provided with a support baffle ring below following film, described baffle ring links to each other with described suspender down, be used to keep diaphragm to keep vertical substantially when moving up and down, coil, bobbin and an assembly of forming unshakable in one's determination are housed in the shell.
Diaphragm comprises a upper film and a following film, and upper film and following film form the cone of a dish, are provided with girth member in this dish-shaped cone.Girth member can be the foamed material with space.Coil, bobbin and the assembly of forming unshakable in one's determination are conventional structures.
Diaphragm of the present utility model has very light quality, and its size stability can not depend on conical in shape thin, low-intensity material.This is by being installed to film one radially in " A shape structure ", and supports these films with inner support.A kind of typical inner support is but is not limited to a kind of foamed material of protuberance.The diaphragm unit that forms has reduced the height of low frequency diaphragm.Therefore, diaphragm of the present utility model makes the woofer drive set component have relatively little profile.
Description of drawings
Below in conjunction with accompanying drawing, describe the utility model in detail.Wherein:
Fig. 1 is a structural representation of existing woofer;
Fig. 2 is the structural representation of the woofer of the dish-shaped cone with propping of the present utility model;
Fig. 3 a, 3b are schematic diagrames of diaphragm of the present utility model.
Fig. 4 a, 4b are overall dimension comparison diagrams of existing loud speaker and loud speaker of the present utility model.
Fig. 5 is the diaphragm of prior art and the stressed comparison diagram of the utility model diaphragm.
Embodiment
Referring to Fig. 1, wherein show a traditional loadspeaker structure.The diaphragm 11 that it is taper that common loud speaker has an one side, and bottom suspender 13 is connected the foot of cone.Because the installation dimension that whole underframe and coil block produce, this application scenario that has a conventional loud speaker of a conical taper in a side is very restricted.Wherein the diaphragm 11 for cone shape is supported on the centre position by last suspender 12 and following suspender 13.
Fig. 2 is a loadspeaker structure of the present utility model, comprises 1, one last suspender 16 of 15, one diaphragms of a shell and a following suspender 17.Diaphragm 1 is a cone shape, the centre is provided with a hole 14, is used to hold the bobbin 4b of a coil 4a, and is provided with a support baffle ring 18 below diaphragm 1, baffle ring 18 links to each other with following suspender 17, is used to keep diaphragm 1 to keep vertical substantially when moving up and down.The assembly of coil 4a, bobbin 4b and iron core 20 compositions is housed in the shell 15.
Final disc-shaped diaphragm 1 (see figure 3) less, that process is reinforced that forms, its very light in weight, and also thin more a lot of than conventional cone diaphragm.
In the diaphragm structure of routine, because angle is very big, the resistance that diaphragm is moved up and down that therefore produces as shown in the figure is just very big.If angle diminishes as shown in Figure 5, though the resistance force diminishes that produces, the crooked easily and distortion of diaphragm.Therefore, in traditional cone diaphragm structure, be designed to diaphragm very dark and the very big stability that can improve diaphragm of angle, but increased resistance as the piston motion.And though diaphragm is designed to very shallow resistance force diminishes, diaphragm zone is unstable, and is easy to generate mechanical deformation and audio distortions.
The utility model has solved the problems referred to above by changing the shape and the structure of cone diaphragm.According to the utility model, as shown in the figure, by a kind of " A " shape frame structure is provided, not only make the whole height of diaphragm diminish, and make its stable mechanical performance, in addition, according to structure of the present utility model, can in diaphragm, add internal support, can make the thickness of diaphragm littler like this, can also increase the stability of diaphragm simultaneously.
By the utility model, a kind of very thin diaphragm structure not only can be provided, and can keep advantages of higher stability.
Claims (4)
1. loud speaker, comprise a shell, a diaphragm is gone up suspender and a following suspender for one, it is characterized in that, described diaphragm is a cone, and the centre is provided with a hole, is used to hold the bobbin of a coil, and below following film, be provided with one and support baffle ring, described baffle ring links to each other with described suspender down, is used to keep diaphragm to keep vertical substantially when moving up and down, and coil, bobbin and an assembly of forming unshakable in one's determination are housed in the shell.
2. loud speaker according to claim 1 is characterized in that, described diaphragm comprises a upper film and a following film, and upper film and following film form the cone of a dish, are provided with girth member in this dish-shaped cone.
3. loud speaker according to claim 2 is characterized in that, described girth member can be the foamed material with space.
4. loud speaker according to claim 1 is characterized in that, described coil, bobbin and the assembly of forming unshakable in one's determination are conventional structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240793 CN2697994Y (en) | 2003-03-18 | 2003-03-18 | Low frequency loudspeaker with improved diaphragm structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240793 CN2697994Y (en) | 2003-03-18 | 2003-03-18 | Low frequency loudspeaker with improved diaphragm structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2697994Y true CN2697994Y (en) | 2005-05-04 |
Family
ID=34755246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03240793 Expired - Fee Related CN2697994Y (en) | 2003-03-18 | 2003-03-18 | Low frequency loudspeaker with improved diaphragm structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2697994Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844540A (en) * | 2009-03-26 | 2010-09-29 | 雅马哈株式会社 | Be equipped with the automobile of loudspeaker unit |
-
2003
- 2003-03-18 CN CN 03240793 patent/CN2697994Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844540A (en) * | 2009-03-26 | 2010-09-29 | 雅马哈株式会社 | Be equipped with the automobile of loudspeaker unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050504 Termination date: 20110318 |