CN2676555Y - Magneto-motive horn - Google Patents
Magneto-motive horn Download PDFInfo
- Publication number
- CN2676555Y CN2676555Y CN 200420015590 CN200420015590U CN2676555Y CN 2676555 Y CN2676555 Y CN 2676555Y CN 200420015590 CN200420015590 CN 200420015590 CN 200420015590 U CN200420015590 U CN 200420015590U CN 2676555 Y CN2676555 Y CN 2676555Y
- Authority
- CN
- China
- Prior art keywords
- voice coil
- motive
- magneto
- vibrating diaphragm
- coil loudspeaker
- 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
Images
Abstract
The utility model relates to a magneto-motive horn which is characterized in that the magneto-motive horn comprises a support which is used for fixing and installing speech coils and a diaphragm which is provided with a magnet. At Least one group of speech coils are symmetrically fixed and arranged on the support at intervals. Both sides of the diaphragm are fixed and installed at the front of the speech coil respectively through a centering support chip, and the diaphragm is parallel and corresponding to the blanks of the speech coils. The magnet corresponds to the speech coils, and the speech coils are connected in parallel or connected in series. The magneto-motive horn has scientific design and simple structure. The magneto-motive horn has the advantages of small non-linear distortion, large frequency wide of the response of the horn, etc. The magneto-motive horn can be conveniently combined into horns with different shapes, such as a flat slate shape, a cylinder (radiation within 360 degrees), half cylinder (radiation within 180 degrees), even a circular column with any angle, a square tower, etc.
Description
Technical field
The loudspeaker that the utility model relates to, especially a kind of have low distortion and can realize Magneto-motive horn to 360 degree space radiation sound waves.
Background technology
At present, the common loudspeaker in market have two kinds: moving-coil loudspeaker and electromagnetic horn.The structure of moving-coil loudspeaker is as shown in Figure 5: the voice coil loudspeaker voice coil 2 that is connected with AC signal is subjected to the action of a magnetic field power and vibrates in the magnetic gap of being made up of front plate 7 and rear plate 8, drive vibrating diaphragm 1 vibration sounding that is attached thereto.Vibrating diaphragm 1 is fixed on the support 6 by ring 5.When vibrating diaphragm 1 vibration, it is different near the part of voice coil loudspeaker voice coil 2 and the partial dislocation amplitude of close ring 5 like this.The state of center line the right signal before top offset, the state of solid line signal behind top offset on the center line left side, vibrating diaphragm 1 and ring 5 states before the dotted line signal displacement.As can see from Figure 2, the inside and outside displacement amplitude of vibrating diaphragm 1 is different, and the curvature of vibrating diaphragm 1 all changes.Can cause the subharmonic distortion when this variation is serious.In addition, because Distribution of Magnetic Field is inhomogeneous, upper and lower when mobile in magnetic gap when voice coil loudspeaker voice coil 2, the action of a magnetic field power that it is subjected to changes with the variation of position, and this can cause nonlinear distortion.
The structure of traditional electromagnetic horn is as shown in Figure 6: when being connected with AC signal in the voice coil loudspeaker voice coil 2, produce the electromagnetic field that direction changes with signal, the active force of electromagnetic field makes by magnet 3 magnetized armature 9 vibrations, thereby drives the conversion of vibrating diaphragm 1 vibration realizing electroacoustic.Described magnet 3 and voice coil loudspeaker voice coil 2 all are fixed on the support 6.This electromagnetic horn needs a long and heavy armature 9, and armature 9 can make oscillating mass increase the weight of, thereby has limited the sound wave frequency bandwidth of resetting.Armature 9 is when motion simultaneously, and the electromagnetic force that is subjected to can bring nonlinear distortion with change in location.
Summary of the invention
The purpose of this utility model is the deficiency that exists at above-mentioned loudspeaker, provides a kind of subharmonic distortion and nonlinear distortion little, the Magneto-motive horn of acoustical reproduction audio bandwidth.
Magneto-motive horn of the present utility model is characterized in that:
A, one is used for the hard-wired support of voice coil loudspeaker voice coil;
B, one is provided with the vibrating diaphragm of magnet;
C, at least one group of voice coil loudspeaker voice coil symmetry fixed interval are rack-mount;
The two ends of d, vibrating diaphragm are fixedly mounted on the voice coil loudspeaker voice coil dead ahead by centring disk respectively, vibrating diaphragm and voice coil loudspeaker voice coil spacer portion bit parallel and corresponding, and magnet is corresponding with voice coil loudspeaker voice coil;
Between e, voice coil loudspeaker voice coil for being connected in parallel or being connected in series.
The utility model Magneto-motive horn also can fixedly mount another and organize the voice coil loudspeaker voice coil of reverse coiling on the support that is right against voice coil loudspeaker voice coil the place ahead, two groups of voice coil loudspeaker voice coil positions are corresponding, form the gap that supplies vibrating diaphragm and magnet to install between two groups of voice coil loudspeaker voice coils, described vibrating diaphragm and magnet are installed between the gap that two groups of voice coil loudspeaker voice coils form by centring disk, between two groups of voice coil loudspeaker voice coils for being connected in parallel or being connected in series.
It can be that magnet is covered on the vibrating diaphragm that described magnet combines with vibrating diaphragm, also magnet can be bonded at the vibrating diaphragm edge or be set in the vibrating diaphragm.
Described centring disk is flexure strip or elastomer.
Magneto-motive horn operation principle of the present utility model is: can generate an electromagnetic field when voice coil loudspeaker voice coil is switched on, the magnet movement that promotes its dead ahead in magnetic field, thereby drive the vibrating diaphragm vibration, realize the conversion of electroacoustic: when the electromagnetic field direction is identical with the magnetic field of magnets direction, mutually close one side's magnetic polarity is different attracts each other, and magnet drives vibrating diaphragm to the direction motion near voice coil loudspeaker voice coil; When the electromagnetic field direction is opposite with the magnetic field of magnets direction, the close identical mutual repulsion of side's magnetic polarity mutually, magnet drives vibrating diaphragm to the direction motion away from voice coil loudspeaker voice coil.If increase the voice coil loudspeaker voice coil of one group of corresponding reverse coiling in voice coil loudspeaker voice coil the place ahead with it, vibrating diaphragm and magnet are between two groups of formed gaps of voice coil loudspeaker voice coil, between the gap that two groups of voice coil loudspeaker voice coils form apart from scalable, adjusting by spacing, when magnet moves in the gap, can make one group of voice coil loudspeaker voice coil electromagnetic field intensity enhancing amount equal the amount of weakening of another group voice coil loudspeaker voice coil electromagnetic field intensity, thereby two groups of voice coil loudspeaker voice coils are cancelled out each other to the active force variable quantity of magnet, reaching synthesis tries hard to keep and holds constant effect, actuating force is non-linear when reducing the vibrating diaphragm motion, thereby reduces the nonlinear distortion of loudspeaker response.
The utility model Magneto-motive horn design science, simple in structure, have the following advantages:
1, because the two ends of vibrating diaphragm drive simultaneously, the deformation when having reduced the vibrating diaphragm motion is so the subharmonic distortion is littler than traditional moving-coil loudspeaker.
2, because this Magneto-motive horn adopts the strong magnets of small size and directly combines with vibrating diaphragm, do not need the heavy armature of matter, alleviate oscillating mass greatly, widened the frequency range of loudspeaker responses.
3, vibrating diaphragm can be made strip, easily be combined into the loudspeaker of multiple shape, as: plate shaped, cylindrical (360 ° of radiation), half-cylindrical (180 ° of radiation), even arbitrarily angled cylinder, squarer shape etc.
The concrete structure of the utility model Magneto-motive horn is provided in detail by the following drawings and embodiment.
Description of drawings
Fig. 1 is the structural representation of Magneto-motive horn;
Fig. 2 is that Magneto-motive horn A-A shown in Figure 1 is to the sectional structure schematic diagram;
Fig. 3 is the another kind of structural representation of Magneto-motive horn;
The 360 ° of cylindrical combination Magneto-motive horn of radiation schematic diagrames that Fig. 4 is made up of a plurality of Magneto-motive horns;
Fig. 5 is existing moving-coil horn structure schematic diagram;
Fig. 6 is existing electromagnetic horn structural representation.
Embodiment
Embodiment: can be clear that from Fig. 1 and Fig. 2 this is a kind of Magneto-motive horn that is provided with one group of voice coil loudspeaker voice coil, the vibrating diaphragm 1 that is respectively equipped with magnet 3 by support 6, two voice coil loudspeaker voice coil 2a and two ends is formed.Described support 6 is the structure that offers fenestra 7 on the front side wall; Described magnet 3 sticks with glue at the two ends of vibrating diaphragm 1.Two voice coil loudspeaker voice coil 2a are fixedly mounted on support 6 inboard fenestras 7 both sides, the two ends of described vibrating diaphragm 1 are fixedly mounted on the support 6 in voice coil loudspeaker voice coil 2a dead ahead by flexure strip 4 respectively, vibrating diaphragm 1 is parallel and corresponding with the fenestra 7 of support 6, vibrating diaphragm 1 two ends magnet 3 is corresponding with two voice coil loudspeaker voice coil 2a of its side, flexure strip 4 effects are to support vibrating diaphragm 1, its restoring force that has can make vibrating diaphragm 1 when magnetic field diminishes simultaneously, gets back to initial position.Under the illustrated sense of current, the electromagnetic field that voice coil loudspeaker voice coil 2a produces is that a side of close magnet 3 is the S utmost point.The magnetic direction of diagram magnet 3 is that last N extremely descends the S utmost point, so the electromagnetic fields attract magnet 3 drive vibrating diaphragms 1 that voice coil loudspeaker voice coil 2a produces move upward.If the change sense of current, then the electromagnetic field direction changes and repels magnet 3 and drive vibrating diaphragms 1 and move downward.When the input music signal, vibrating diaphragm 1 vibration sounding under the electromagnetic field effect power that voice coil loudspeaker voice coil 2a forms is realized the electroacoustic conversion like this.
For reducing the voice coil loudspeaker voice coil inductance, for being connected in parallel, for guaranteeing enough dc impedances, voice coil loudspeaker voice coil selects for use the thin wire coiling to form between two voice coil loudspeaker voice coil 2a.
Embodiment 2: can be clear that from Fig. 3 this is a kind of Magneto-motive horn that is provided with two groups of voice coil loudspeaker voice coils, Magneto-motive horn is by support 6, two groups of voice coil loudspeaker voice coil 2a, 2b and the two ends vibrating diaphragm 1 that is respectively equipped with magnet 3 is formed up and down.Described support 6 is a box like structure, the fenestra 7 that offers on the one sidewall; One group of voice coil loudspeaker voice coil 2a symmetry is fixedly mounted on 7 both sides, support 6 inwall side window holes, and it is corresponding that another group voice coil loudspeaker voice coil 2b is fixedly mounted on 6, two groups of voice coil loudspeaker voice coil 2a of support, the 2b position in voice coil loudspeaker voice coil 2a dead ahead, forms the gap of installing for vibrating diaphragm 1 and magnet 3 between two groups of voice coil loudspeaker voice coil 2a, 2b.Described magnet 3 is embedded in vibrating diaphragm 1 two ends, and vibrating diaphragm 1 and magnet 3 place between the gap of two voice coil loudspeaker voice coil 2a, 2b formation, and fixedlys connected with two groups of voice coil loudspeaker voice coil 2a, 2b ends by centring disk 4; Vibrating diaphragm 1 is parallel and corresponding with support 6 sidewall fenestras 7, and vibrating diaphragm 1 two ends magnet 3 is corresponding with voice coil loudspeaker voice coil 2a, the 2b of its both sides.For reducing the voice coil loudspeaker voice coil inductance, for being connected in parallel, for guaranteeing enough dc impedances, voice coil loudspeaker voice coil selects for use the thin wire coiling to form between two groups of voice coil loudspeaker voice coil 2a, 2b.
The operation principle of this Magneto-motive horn: because upper and lower two groups of voice coil loudspeaker voice coil 2a, 2b are reverse coiling, two groups of current opposite in direction that voice coil loudspeaker voice coil 2a, 2b are interior when switching on like this, thus the electromagnetic field direction that produces is also opposite.As shown in Figure 3, the electromagnetic field of upper and lower two groups of voice coil loudspeaker voice coil 2a, 2b generation all is that a side of close magnet 3 is the S utmost point.The magnetic direction of magnet 3 is that last N extremely descends the S utmost point, therefore go up electromagnetic fields attract magnet 3 that voice coil loudspeaker voice coil 2a produces and drive vibrating diaphragms 1 and move upward, and this at present the electromagnetic field that produces of voice coil loudspeaker voice coil 2b promote (repulsions) magnet 3 drive vibrating diaphragms 1 and also move upward.If the change sense of current, then vibrating diaphragm 1 moves downward.When the input music signal, vibrating diaphragm 1 is vibration sounding in the electromagnetic field that upper and lower voice coil loudspeaker voice coil 2a, 2b form like this, realizes the electroacoustic conversion.The elastic force that the centring disk 4 that is adopted has can make vibrating diaphragm 1 be returned to initial position when electromagnetic force disappears, and works to support vibrating diaphragm 1 simultaneously.
With the loudspeaker of a plurality of the utility model Magneto-motive horns one-tenth different shape capable of being combined, as shown in Figure 4, this is a kind of cylindric combination Magneto-motive horn that is made of a plurality of Magneto-motive horns, and this cylindric combination Magneto-motive horn can be to 360 ° of space radiation sound waves.
Claims (6)
1, a kind of Magneto-motive horn is characterized in that:
A, one is used for the hard-wired support of voice coil loudspeaker voice coil;
B, one is provided with the vibrating diaphragm of magnet;
C, at least one group of voice coil loudspeaker voice coil symmetry fixed interval are rack-mount;
D, vibrating diaphragm are fixedly mounted on the voice coil loudspeaker voice coil dead ahead by centring disk, vibrating diaphragm and voice coil loudspeaker voice coil spacer portion bit parallel and corresponding, and magnet is corresponding with voice coil loudspeaker voice coil;
Between e, voice coil loudspeaker voice coil for being connected in parallel or being connected in series.
2, Magneto-motive horn according to claim 1, it is characterized in that: the support (6) that is right against voice coil loudspeaker voice coil 2a the place ahead upward fixedly mounts another and organizes the voice coil loudspeaker voice coil (2b) of reverse coiling, two groups of voice coil loudspeaker voice coils (2a, 2b) position is corresponding, form the gap for vibrating diaphragm (1) and magnet (3) installation between two groups of voice coil loudspeaker voice coils (2a, 2b), described vibrating diaphragm (1) and magnet (3) are installed between the gap of two groups of voice coil loudspeaker voice coils (2a, 2b) formation by centring disk (4).
3, Magneto-motive horn according to claim 1 is characterized in that: magnet (3) sticks with glue and goes up or be embedded on the vibrating diaphragm (1) at vibrating diaphragm (1).
4, Magneto-motive horn according to claim 1 and 2 is characterized in that: centring disk (4) is flexure strip or elastomer.
5, Magneto-motive horn according to claim 1 is characterized in that: the two ends of vibrating diaphragm (1) are connected support (6) two ends by flexure strip respectively.
6, Magneto-motive horn according to claim 2 is characterized in that: vibrating diaphragm (1) is fixedly connected on the voice coil loudspeaker voice coil (2a, 2b) by elastomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015590 CN2676555Y (en) | 2004-02-13 | 2004-02-13 | Magneto-motive horn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015590 CN2676555Y (en) | 2004-02-13 | 2004-02-13 | Magneto-motive horn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2676555Y true CN2676555Y (en) | 2005-02-02 |
Family
ID=34482894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420015590 Expired - Fee Related CN2676555Y (en) | 2004-02-13 | 2004-02-13 | Magneto-motive horn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2676555Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106792402A (en) * | 2017-03-18 | 2017-05-31 | 歌尔股份有限公司 | Moving-magnetic type loudspeaker |
| CN109462806A (en) * | 2018-12-29 | 2019-03-12 | 歌尔股份有限公司 | Loudspeaker |
| CN109587609A (en) * | 2018-11-06 | 2019-04-05 | 歌尔股份有限公司 | Sounding device |
| CN110199529A (en) * | 2017-01-16 | 2019-09-03 | 株式会社耳桥 | Improve the high-quality magnetic speaker of air gap precision |
-
2004
- 2004-02-13 CN CN 200420015590 patent/CN2676555Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110199529A (en) * | 2017-01-16 | 2019-09-03 | 株式会社耳桥 | Improve the high-quality magnetic speaker of air gap precision |
| CN110199529B (en) * | 2017-01-16 | 2021-04-02 | 株式会社耳桥 | High-quality electromagnetic loudspeaker capable of improving air gap precision |
| CN106792402A (en) * | 2017-03-18 | 2017-05-31 | 歌尔股份有限公司 | Moving-magnetic type loudspeaker |
| CN106792402B (en) * | 2017-03-18 | 2022-06-03 | 歌尔股份有限公司 | Moving-magnetic loudspeaker |
| CN109587609A (en) * | 2018-11-06 | 2019-04-05 | 歌尔股份有限公司 | Sounding device |
| CN109587609B (en) * | 2018-11-06 | 2021-02-19 | 歌尔股份有限公司 | Sound producing device |
| CN109462806A (en) * | 2018-12-29 | 2019-03-12 | 歌尔股份有限公司 | Loudspeaker |
| CN109462806B (en) * | 2018-12-29 | 2024-02-09 | 歌尔股份有限公司 | Loudspeaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1182754C (en) | Loudspeakers | |
| CN200973173Y (en) | Vabration acoustical generator | |
| CN112243183B (en) | Magnetic potential loudspeaker and electronic equipment thereof | |
| KR101057078B1 (en) | Multifunction micro speaker | |
| CN103262574A (en) | A portable electronic device | |
| CN110267171B (en) | Screen sound production device | |
| CN101778327B (en) | Electricity and sound conversion method and device | |
| GB2491108A (en) | Back-to-back force-cancelling loudspeaker | |
| CN114257933B (en) | Speaker and electronic device | |
| CN1348321A (en) | Combined loudspeaker with magnet system | |
| EP1686832B1 (en) | Electroacoustic transducer | |
| CN1161000C (en) | Mechanical acoustic crossover network and transducer thereof | |
| CN112203199A (en) | Transducer vibration suspension system, transducer and electronic equipment | |
| CN202713603U (en) | Moving-coil loudspeaker with area-alterable capacitive vibration sensor | |
| CN2676555Y (en) | Magneto-motive horn | |
| CN102802104A (en) | Moving-coil loudspeaker with area-alterable capacitive vibration sensor | |
| WO2020038228A1 (en) | Multipole engine array system and loudspeaker | |
| CN205123986U (en) | Micro loudspeaker | |
| CN116349247A (en) | Flat loudspeaker driven by a single permanent magnet and one or more voice coils | |
| WO2011083914A2 (en) | Rectangular multifunctional microspeaker | |
| EP2911413B1 (en) | Loudspeaker with piezoelectric elements | |
| JPH11220786A (en) | Panel-type loudspeaker system | |
| CN101754074A (en) | Bass solution without sound box | |
| JP2007020024A (en) | Linear motor type loudspeaker | |
| CN2744104Y (en) | Omnidirectional loudspeaker |
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 |