CN201967122U - Magnetic circuit system and speaker applying same - Google Patents
Magnetic circuit system and speaker applying same Download PDFInfo
- Publication number
- CN201967122U CN201967122U CN2011200042504U CN201120004250U CN201967122U CN 201967122 U CN201967122 U CN 201967122U CN 2011200042504 U CN2011200042504 U CN 2011200042504U CN 201120004250 U CN201120004250 U CN 201120004250U CN 201967122 U CN201967122 U CN 201967122U
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- magnet steel
- steel
- outer steel
- voice coil
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- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 107
- 239000010959 steel Substances 0.000 claims abstract description 107
- 239000000758 substrate Substances 0.000 claims abstract description 48
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 abstract 2
- 230000004907 flux Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model provides a speaker, which comprises a bracket, a substrate, an inner magnetic steel, outer magnetic steels, a voice coil and a vibrating membrane, wherein the substrate is embedded in the bracket; the inner magnetic steel is fixed on the substrate; the outer magnetic steels are surrounded outside the inner magnetic steel; a magnetic gap is formed between the inner magnetic steel and the outer magnetic steels; the voice coil is suspended in the magnetic gap; and the vibrating membrane is driven by the voice coil to vibrate. The inner magnetic steel is provided with a first surface far away from the substrate, and the outer magnetic steels are provided with second surfaces far away from the substrate, wherein a vertical distance between each second surface and the substrate is larger than a vertical distance between the first surface and the substrate. The speaker has excellent sensitivity and the acoustical property of the speaker can be well improved.
Description
[technical field]
The utility model relates to a kind of loud speaker, relates in particular to a kind of magnetic circuit system that is applied to this loud speaker.
[background technology]
In recent years along with the fast development of mobile communication technology, the consumer uses the mobile communication equipment that has phonetic function more and more, for example portable phone, handheld device, laptop computer, laptop computer, multimedia player and can be by other equipment public or that dedicated communications network communicates.And loud speaker is as the playing device of voice, and its design quality directly influences the performance of loud speaker.
The loud speaker of correlation technique generally includes support, is contained in the magnetic circuit system and the vibrational system of support, described magnetic circuit system is provided with substrate and is fixed in the interior magnet steel of substrate and is positioned at the magnet steel outside and forms the outer steel of magnetic gap with magnet steel, and vibrational system is provided with the voice coil loudspeaker voice coil that is suspended from magnetic gap and driven by voice coil loudspeaker voice coil and the vibrating diaphragm that vibrates.Vibrating diaphragm is typically provided with ball top that is positioned at central authorities and the ring portion that centers on the ball top, and this ring portion is usually towards the direction projection away from magnetic circuit system.Usually the height with respect to substrate is identical and the outer steel of loud speaker is with interior magnet steel, and promptly the two height towards a lateral extent substrate of vibrating diaphragm equates.Like this, can waste the space between the ring portion of outer steel and vibrating diaphragm, be unfavorable for the raising of product sensitivity.
Therefore, be necessary to provide a kind of new magnetic speaker to solve the problems referred to above.
[utility model content]
The technical problem that the utility model need solve is to provide a kind of and can makes full use of the product volume inside and improve magnetic flux density, thereby improves the magnetic circuit system of product sensitivity and use the loud speaker of this magnetic circuit system.
The utility model is to realize by such technical scheme:
A kind of magnetic circuit system, it comprises substrate, be fixed in the interior magnet steel on the substrate and form the outer steel of magnetic gap around interior magnet steel and with interior magnet steel, magnet steel is provided with the first surface away from substrate in described, outer steel is provided with the second surface away from substrate, wherein, the vertical range of described second surface and substrate is greater than the vertical range of described first surface and substrate.
As a kind of improvement of the present utility model, described interior magnet steel is provided with first pole piece that is positioned on the first surface, and described outer steel is provided with second pole piece that is positioned on the second surface.
As a kind of improvement of the present utility model, described interior magnet steel is square, and described outer steel comprises first outer steel and second outer steel near two opposing sidewalls of interior magnet steel.
As a kind of improvement of the present utility model, described interior magnet steel is an ellipsoidal structure, and described outer steel is the loop configuration in the magnet steel outside in being surrounded on.
A kind of loud speaker, it comprises support, be assemblied in substrate in the support, be fixed in interior magnet steel on the substrate, around interior magnet steel and with interior magnet steel form magnetic gap outer steel, be suspended in the voice coil loudspeaker voice coil in the described magnetic gap and driven by voice coil loudspeaker voice coil and the vibrating diaphragm of vibration, magnet steel is provided with the first surface away from substrate in described, outer steel is provided with the second surface away from substrate, wherein, the vertical range of described first surface and substrate is less than the vertical range of described second surface and substrate.
As a kind of improvement of the present utility model, described vibrating diaphragm is provided with the ball top that is positioned at middle position and links to each other with voice coil loudspeaker voice coil and around the ring portion at ball top, and described ring portion is towards the direction projection away from outer steel.
As a kind of improvement of the present utility model, described vibrating diaphragm also is provided with the oscillating plate that is covered on the ball top.
As a kind of improvement of the present utility model, described interior magnet steel is provided with first pole piece that is positioned on the first surface, and described outer steel is provided with second pole piece that is positioned on the second surface.
As a kind of improvement of the present utility model, described second pole piece equates with the vertical height of first pole piece to vibrating diaphragm to the vertical height of vibrating diaphragm.
As a kind of improvement of the present utility model, described interior magnet steel is square, and described outer steel comprises first outer steel and second outer steel near two opposing sidewalls of interior magnet steel.
The utlity model has following advantage: the interior magnet steel of the magnetic circuit system of loud speaker and outer steel are respectively equipped with first surface and the second surface away from substrate, because the vertical range of first surface and substrate is less than second surface and vertical range, the height of the relative substrate of outer steel that is magnetic circuit system is greater than the height of interior magnet steel with respect to substrate, like this, just can make full use of the space between outer steel and the vibrating diaphragm ring portion, increase outer steel, and then the magnetic flux density of enhancing magnetic circuit system, thereby the sensitivity that improves speaker product.
[description of drawings]
Fig. 1 is the cutaway view of the utility model loud speaker.
[embodiment]
The utility model is described in further detail below in conjunction with drawings and embodiments.
As shown in Figure 1, the utility model loud speaker 10 comprises support 11, is contained in the magnetic circuit system and the vibrational system of support 11.
Vibrational system comprises vibrating diaphragm 130 and the voice coil loudspeaker voice coil 131 that links to each other with vibrating diaphragm 130, wherein, vibrating diaphragm 130 comprises the ball top 301 that is positioned at middle position and around ball top 301 and the ring portion 302 that links to each other with ball top 301, ring portion 302 is towards the direction projection away from magnetic circuit system 12.In the present embodiment, ball top 301 is slab construction and links to each other with voice coil loudspeaker voice coil 131, and also is provided with on the vibrating diaphragm 130 and is covered on the ball top 301 and works the oscillating plate 132 of strengthening vibrating diaphragm 130 vibrations.
Magnetic circuit system is provided with the substrate 120 that is assemblied in the support 11, be fixed on the substrate 120 interior magnet steel 121 and around the outer steel 122 in interior magnet steel 121 outsides.In the present embodiment, being shaped as of interior magnet steel 121 is square, and outer steel 122 is the first outer steel 122a and the second outer steel 122b near 121 two long relatively sidewalls of interior magnet steel.The first outer steel 122a and the second outer steel 122b and interior magnet steel 121 form magnetic gap, and voice coil loudspeaker voice coil 131 promptly is suspended in this magnetic gap.Certainly, interior magnet steel 121 also can be ellipsoidal structure, 122 loop configuration of being arranged to around interior magnet steel 121 of outer steel.
In the present embodiment, substrate 120 be can magnetic conduction magnetic conductive board, and it is provided with the diapire 201 that is connected with two outer steels 122 with interior magnet steel 121.Magnetic circuit system 12 also comprise be located on the magnet steel 121 first pole piece 123 and be located at two second pole pieces, 124, the first pole pieces 123 on two outer steels 122 and effect that two second pole pieces 124 play magnetic conduction.Interior magnet steel 121 is provided with the first surface 210 that links to each other with first pole piece 123, that is away from the surface of substrate 120; Two outer steels 122 are provided with the second surface 220 that links to each other with two second pole pieces 124, that is away from the surface of substrate 120.The first surface 210 of interior magnet steel 121 is h apart from the height of the diapire 201 of substrate 120, the second surface 220 of outer steel 122 is H apart from the height of the diapire 201 of substrate 120, in the utility model, height H is greater than height h, that is, outer steel 122 with respect to the height of substrate 120 greater than the height of interior magnet steel 121 with respect to substrate 120.Preferably, two second pole pieces 124 equate with the vertical height of first pole piece 123 to ball top 301 to the maximum vertical height of ring portion 302.
Like this, two outer steels 122 and two second pole pieces 124 just can make full use of the space between ring portion 302 and the magnetic circuit system, and then increase the magnetic flux density of magnetic circuit system, thus the sensitivity that improves loud speaker 10.
Above-described only is execution mode of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.
Claims (10)
1. magnetic circuit system, it comprises substrate, be fixed in the interior magnet steel on the substrate and be positioned at the magnet steel outside and form the outer steel of magnetic gap with magnet steel, magnet steel is provided with the first surface away from substrate in described, outer steel is provided with the second surface away from substrate, it is characterized in that: the vertical range of described second surface and substrate is greater than the vertical range of described first surface and substrate.
2. magnetic speaker according to claim 1 is characterized in that: magnet steel is provided with first pole piece that is positioned on the first surface in described, and described outer steel is provided with second pole piece that is positioned on the second surface.
3. magnetic speaker according to claim 1 is characterized in that: magnet steel is square in described, and described outer steel comprises first outer steel and second outer steel near two opposing sidewalls of interior magnet steel.
4. magnetic speaker according to claim 1 is characterized in that: magnet steel is an ellipsoidal structure in described, and described outer steel is the loop configuration in the magnet steel outside in being surrounded on.
5. loud speaker, it comprises support, be assemblied in substrate in the support, be fixed in interior magnet steel on the substrate, around interior magnet steel and with interior magnet steel form magnetic gap outer steel, be suspended in the voice coil loudspeaker voice coil in the described magnetic gap and driven by voice coil loudspeaker voice coil and the vibrating diaphragm of vibration, magnet steel is provided with the first surface away from substrate in described, outer steel is provided with the second surface away from substrate, it is characterized in that: the vertical range of described first surface and substrate is less than the vertical range of described second surface and substrate.
6. magnetic speaker according to claim 5 is characterized in that: described vibrating diaphragm is provided with the ball top that is positioned at middle position and links to each other with voice coil loudspeaker voice coil and around the ring portion at ball top, and described ring portion is towards the direction projection away from outer steel.
7. magnetic speaker according to claim 6 is characterized in that: described vibrating diaphragm also is provided with the oscillating plate that is covered on the ball top.
8. magnetic speaker according to claim 5 is characterized in that: magnet steel is provided with first pole piece that is positioned on the first surface in described, and described outer steel is provided with second pole piece that is positioned on the second surface.
9. magnetic speaker according to claim 8 is characterized in that: described second pole piece equates with the vertical height of first pole piece to vibrating diaphragm to the vertical height of vibrating diaphragm.
10. according to any described magnetic speaker of claim 5 to 9, it is characterized in that: magnet steel is square in described, and described outer steel comprises first outer steel and second outer steel near two opposing sidewalls of interior magnet steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200042504U CN201967122U (en) | 2011-01-07 | 2011-01-07 | Magnetic circuit system and speaker applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200042504U CN201967122U (en) | 2011-01-07 | 2011-01-07 | Magnetic circuit system and speaker applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201967122U true CN201967122U (en) | 2011-09-07 |
Family
ID=44529675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200042504U Expired - Lifetime CN201967122U (en) | 2011-01-07 | 2011-01-07 | Magnetic circuit system and speaker applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201967122U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497611A (en) * | 2011-12-23 | 2012-06-13 | 深圳市韶音科技有限公司 | Bone conduction speaker driver with reduced volume |
| CN105681981A (en) * | 2016-01-11 | 2016-06-15 | 瑞声光电科技(常州)有限公司 | Multifunctional loudspeaker |
| CN105681983A (en) * | 2016-01-12 | 2016-06-15 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
-
2011
- 2011-01-07 CN CN2011200042504U patent/CN201967122U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497611A (en) * | 2011-12-23 | 2012-06-13 | 深圳市韶音科技有限公司 | Bone conduction speaker driver with reduced volume |
| CN105681981A (en) * | 2016-01-11 | 2016-06-15 | 瑞声光电科技(常州)有限公司 | Multifunctional loudspeaker |
| CN105681983A (en) * | 2016-01-12 | 2016-06-15 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170505 Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee after: AAC Optoelectronic (Changzhou) Co., Ltd. Patentee after: AAC Technologies (Singapore) Co., Ltd. Address before: Wujin Nanxiashu town Jiangsu city Changzhou province 213167 Co-patentee before: AAC Acoustic Technologies (Shenzhen) Co., Ltd. Patentee before: AAC Optoelectronic (Changzhou) Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181018 Address after: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore Patentee after: AAC Technologies (Singapore) Co., Ltd. Address before: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee before: AAC Optoelectronic (Changzhou) Co., Ltd. Patentee before: AAC Technologies (Singapore) Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |
|
| CX01 | Expiry of patent term |