CN204031441U - Loud speaker - Google Patents
Loud speaker Download PDFInfo
- Publication number
- CN204031441U CN204031441U CN201420444795.0U CN201420444795U CN204031441U CN 204031441 U CN204031441 U CN 204031441U CN 201420444795 U CN201420444795 U CN 201420444795U CN 204031441 U CN204031441 U CN 204031441U
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- CN
- China
- Prior art keywords
- loud speaker
- voice coil
- coil
- magnetic circuit
- frame
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- 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
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to a kind of loud speaker, and described loud speaker comprises: frame, vibrational system, magnetic circuit system and interpole coil; Described vibrational system, is placed in described frame; Described magnetic circuit system, is connected with described frame; Described interpole coil, is surrounded on outside described magnetic circuit system, or is surrounded on outside described frame.The utility model adopts the design of interpole coil, the electromagnetic field that interpole coil produces when speaker operation and the electromagnetic field mutual induction that loudspeaker voice coil produces, resist the mutual electromagnetic interference between surrounding environment and loud speaker, when making speaker operation, noiseless, signal to noise ratio is high, and voice signal is strong, and resolution is high.
Description
Technical field
The utility model relates to electroacoustic techniques field, especially designs a kind of loud speaker.
Background technology
Loud speaker can convert the electrical signal to acoustical signal and be radiated the electroacoustic transducer gone in air.Traditional loud speaker is divided into electrodynamic type, electromagnetic type, electrostatic, piezoelectric type, ionic formula and pneumatic type etc. by operation principle.
In the loud speaker of each type, using is dynamic speaker at most, the most widely, is also called coil-moving speaker.
Due to the existence of the voice coil loudspeaker voice coil of dynamic speaker, be inevitably subject to the interference of electromagnetic radiation around.In general use occasion, this interference is also unlikely to the normal hearing having influence on people.But under the environment for use that some is special, as hearing aids loud speaker, this interference may have influence on the normal hearing of people.
Utility model content
The purpose of this utility model improves traditional dynamic speaker, improves the antijamming capability of loud speaker.
For achieving the above object, the utility model provides a kind of loud speaker, and described loud speaker comprises: frame, vibrational system, magnetic circuit system and interpole coil;
Described vibrational system, is placed in described frame;
Described magnetic circuit system, is connected with described frame;
Described interpole coil, is surrounded on outside described magnetic circuit system, or is surrounded on outside described frame.
Preferably, described vibrational system comprises cone, voice coil loudspeaker voice coil, speech coil framework; Described cone is rigidly connected by speech coil framework and described voice coil loudspeaker voice coil.
Preferably, described magnetic circuit system comprises top flat, magnet, U iron; Described U iron is U-shaped structure; Described top flat, magnet, U iron link together from top to bottom in turn; Wherein, described top flat, magnet are placed in described U iron; Described U iron upper end is connected with described frame.
Preferably, described interpole coil is made up of the enamelled wire of coiling.
The utility model adopts the design of interpole coil, the electromagnetic field that interpole coil produces when speaker operation and the electromagnetic field mutual induction that loudspeaker voice coil produces, resist the mutual electromagnetic interference between surrounding environment and loud speaker, noiseless when making speaker operation, signal to noise ratio is high, make voice signal strong, resolution is high.
Accompanying drawing explanation
Fig. 1 is the generalized section of loudspeaker embodiment one of the present utility model.
Fig. 2 is the generalized section of loudspeaker embodiment two of the present utility model.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Fig. 1 is the generalized section of loudspeaker embodiment one of the present utility model.
As shown in Figure 1, the loud speaker that the utility model provides comprises: frame 8, vibrational system, magnetic circuit system and interpole coil 7;
Described vibrational system, is placed in described frame 8;
Described magnetic circuit system, is connected with described frame 8;
Described interpole coil 7, is surrounded on outside described magnetic circuit system, or is surrounded on outside described frame 8.
Preferably, described vibrational system comprises cone 1, voice coil loudspeaker voice coil 2, speech coil framework 3; Described cone 1 is rigidly connected by speech coil framework 3 and described voice coil loudspeaker voice coil 2.Described magnetic circuit system comprises top flat 4, magnet 5, U iron 6; Described U iron 6 is U-shaped structure; Described top flat 4, magnet 5, U iron 6 link together from top to bottom in turn; Wherein, described top flat 4, magnet 5 are placed in described U iron 6; Described U iron 6 upper end is connected with described frame 8; Described interpole coil 7 is made up of the enamelled wire of coiling.
Particularly, cone 1 is bonded on described speech coil framework 3; Voice coil loudspeaker voice coil 2 is wound on speech coil framework 3, and cone 1 and voice coil loudspeaker voice coil 2 are rigidly connected by speech coil framework 3; Magnet 5 is arranged between top flat 4 and U iron 6, and magnet 5 produces a uniform magnetic field.A very little magnetic gap is there is between magnet 5 and top flat 4 and U iron 6, voice coil loudspeaker voice coil 2 is arranged between magnetic gap, top flat 4 and U iron 6 provide a magnetic loop for the magnetic field that magnet produces, when the voice coil loudspeaker voice coil 2 be in magnetic field has tone currents to pass through, voice coil loudspeaker voice coil 2 is subject to the effect of magnetic field force and up-down vibration vertically, because voice coil loudspeaker voice coil 2 is rigidly connected by speech coil framework 3 and cone 1, active force is delivered to cone 1 by speech coil framework 3, drive cone 1 up-down vibration, ambient air generation density is changed, sounds.
Embodiment one, interpole coil 7 is surrounded on outside the U iron 6 in described magnetic circuit system, as shown in Figure 1.Be connected with voice coil loudspeaker voice coil 2 by lead-in wire.
Embodiment two, interpole coil 7 is surrounded on outside described frame 8, as shown in Figure 2.Be connected with voice coil loudspeaker voice coil 2 by lead-in wire.
When the voice coil loudspeaker voice coil 2 be in magnetic field have tone currents by time, the magnetic field interaction of electromagnetic field and voice coil loudspeaker voice coil 2 that interpole coil 7 produces, can reduce the interference of electromagnetic radiation around to voice coil loudspeaker voice coil 2, during speaker operation, signal to noise ratio is high, and by force, resolution is high for voice signal.
Loud speaker of the present utility model, improves traditional dynamic speaker, has installed one group of interpole coil by enamelled wire coiling outside loud speaker additional.In the course of the work, the electromagnetic field that voice coil loudspeaker voice coil produces and the electromagnetic field that interpole coil produces produce and interact, and effectively can reduce the interference that peripheral electromagnetic field produces voice coil loudspeaker voice coil, when making speaker operation, signal to noise ratio is high, and voice signal strengthens, and sound effect is better.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only embodiment of the present utility model; and be not used in restriction protection range of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. a loud speaker, is characterized in that, described loud speaker comprises: frame, vibrational system, magnetic circuit system and interpole coil;
Described vibrational system, is placed in described frame;
Described magnetic circuit system, is connected with described frame;
Described interpole coil, is surrounded on outside described magnetic circuit system, or is surrounded on outside described frame.
2. loud speaker according to claim 1, is characterized in that, described vibrational system comprises cone, voice coil loudspeaker voice coil, speech coil framework;
Described cone is rigidly connected by speech coil framework and described voice coil loudspeaker voice coil.
3. loud speaker according to claim 1, is characterized in that, described magnetic circuit system comprises top flat, magnet, U iron;
Described U iron is U-shaped structure;
Described top flat, magnet, U iron link together from top to bottom in turn; Wherein, described top flat, magnet are placed in described U iron.
4. loud speaker according to claim 3, is characterized in that, described U iron upper end is connected with described frame.
5. loud speaker according to claim 1, is characterized in that, described interpole coil is made up of the enamelled wire of coiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420444795.0U CN204031441U (en) | 2014-08-07 | 2014-08-07 | Loud speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420444795.0U CN204031441U (en) | 2014-08-07 | 2014-08-07 | Loud speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204031441U true CN204031441U (en) | 2014-12-17 |
Family
ID=52071262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420444795.0U Expired - Fee Related CN204031441U (en) | 2014-08-07 | 2014-08-07 | Loud speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204031441U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3383066A1 (en) * | 2017-03-29 | 2018-10-03 | Ask Industries Societa' per Azioni | Loudspeaker with vibration control system |
| CN109379683A (en) * | 2018-11-06 | 2019-02-22 | 歌尔股份有限公司 | Sounding device |
| CN115226010A (en) * | 2022-09-07 | 2022-10-21 | 荣耀终端有限公司 | Anti-magnetic interference structure and electronic equipment |
-
2014
- 2014-08-07 CN CN201420444795.0U patent/CN204031441U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3383066A1 (en) * | 2017-03-29 | 2018-10-03 | Ask Industries Societa' per Azioni | Loudspeaker with vibration control system |
| US10412497B2 (en) | 2017-03-29 | 2019-09-10 | Ask Industries Societa' Per Azioni | Loudspeaker with vibration control system |
| CN109379683A (en) * | 2018-11-06 | 2019-02-22 | 歌尔股份有限公司 | Sounding device |
| CN115226010A (en) * | 2022-09-07 | 2022-10-21 | 荣耀终端有限公司 | Anti-magnetic interference structure and electronic equipment |
| CN115226010B (en) * | 2022-09-07 | 2023-02-17 | 荣耀终端有限公司 | Anti-magnetic interference structure and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20200807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |