CN202121769U - Cover type loudspeaker of mobile terminal - Google Patents
Cover type loudspeaker of mobile terminal Download PDFInfo
- Publication number
- CN202121769U CN202121769U CN2011200972700U CN201120097270U CN202121769U CN 202121769 U CN202121769 U CN 202121769U CN 2011200972700 U CN2011200972700 U CN 2011200972700U CN 201120097270 U CN201120097270 U CN 201120097270U CN 202121769 U CN202121769 U CN 202121769U
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- direction vibration
- coil framework
- speech coil
- vibration structure
- voice coil
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Abstract
In the utility model, a voice coil which is winded on the front and back voice coil skeletons is inserted into the front and back magnetic field of the magnetic field loop formed by a permanent magnet, a magnetic conductive clamping plate and a magnetic conductive core column; when a current is introduced simultaneously, the voice coil is influenced by an electromagnetic field, in the bidirectional vibration structure body formed by the front and back voice coil skeletons wobbling, one side is adhered with hard material, the other side is adhered with soft material, and a bidirectional vibration structure body with an abundant voice range is obtained to be applied as a built-in loudspeaker; and the bidirectional vibration structure body can be applied as the cover type loudspeaker of a mobile terminal.
Description
Technical field
The utility model is that the front and back magnetic conductive splint and the magnetic conduction stem of permanent magnet form field circuit to annular permanent magnnet with being connected up and down; Back voice coil loudspeaker voice coil around the back speech coil framework is set in the magnetic gap between magnetic conduction stem and the preceding magnetic conductive splint in the preceding voice coil loudspeaker voice coil of preceding speech coil framework and the magnetic gap between magnetic conduction stem and the back magnetic conductive splint; And but simultaneously through the direction vibration structure of certain electric current direction vibration, this direction vibration structure is set to built-in loud speaker.
Background technology
Loud speaker has vibratile locating branch slice (film).The locating branch slice adhesion is around the coil of enamelled wire, and this coil is called voice coil loudspeaker voice coil.Voice coil loudspeaker voice coil is placed near the permanent magnet. when the electric current of sound-source signal is gone at the voice coil loudspeaker voice coil upper reaches, come bright lefft-hand rule according to Buddhist, the stressed motion of voice coil loudspeaker voice coil, the locating branch slice vibration of adhesion voice coil loudspeaker voice coil, air receives vibration and sounds.The method of locating branch slice vibration is a lot.The difference of type of drive has dynamic speaker, electrostatic loudspeaker, piezo-electric loudspeaker, the film speaker of ionic formula loud speaker and ultra-thin locating branch slice.Wherein dynamic speaker is extensively to adopt.
Shown in dynamic speaker figure, the magnetic field that circular permanent magnet top forms becomes the shifting magnetic field with magnetic conduction upper plate, magnetic conduction stem, magnetic conduction lower plate and permanent magnet bottom.Loud speaker has around the voice coil loudspeaker voice coil as coil, when the electric current of the middle voice coil loudspeaker voice coil inflow sound-source signal of magnetic conduction stem and plate is set, and the bright lefft-hand rule of Ying Folai, voice coil loudspeaker voice coil can move.The voice coil loudspeaker voice coil that flow into to exchange, along with the change of electric current and power, voice coil loudspeaker voice coil produces and vibrates, thereby is bonded at locating branch slice back and forth movement and sounding on the voice coil loudspeaker voice coil.
On the other hand, MP3 player in recent years, smart mobile phone, portable terminals such as hand-held computer popularize people's earphone commonly used or mobile phone music appreciating.In the walking, use earphone or mobile phone not only dangerous, long-time use also can have very big damage to hearing.Also have as B-BOY, the people's earphone or the mobile phone of music appreciating exercise all can't use together in the open air, are still necessity through the loud speaker music appreciating thereupon.If portable terminal as the boombox power limited, is unfavorable for carrying as external speaker.
Above-mentionedly know that the vibrating body that dynamic speaker commonly used removes locating branch slice and people think arbitrarily can the adhesion mutually of vibratile object, and its loud speaker as the vibrating body use has been become the scientific research of modern concern.This is after utilizing regular loudspeaker to remove the vibrating body and vibratile object adhesion of locating branch slice, and voice coil loudspeaker voice coil moves up and down and drives the sound that object vibration sends.How much also variant the sound that vibrating body sends with adhesion object materials difference is.Send high pitch when being vibrating body adhesion hard material, send middle bass during the adhesion soft material.
The vibrating body loud speaker of circulation is more less than electrodynamic type sonic vibrator commonly used at present; Not only easy to carry; The benefit that can also multiple object be used as locating branch slice, but the drawback that can't obtain regeneration effect with the sound of the different special ranges of vibrating body loud speaker adhesion object is also arranged.
Summary of the invention
The utility model provides the front and back, crack, magnetic field of the field circuit of permanent magnet and magnetic conductive splint and the formation of magnetic conduction stem to insert the voice coil loudspeaker voice coil of the speech coil framework around front and back; And the direction vibration structure that receives electromagnetic force during this voice coil loudspeaker voice coil inflow current and swing; With one of which side adhesion hard material; Opposite side adhesion soft material, the direction vibration tectosome that just obtains enriching range are as boombox and can be used as the buckle closure formula loud speaker that portable terminal uses and be purpose.
The technical scheme that its technology of this practical solution is adopted
The neighboring that the utility model invention provides the both sides, space in the middle of annular permanent magnnet, the front and back magnetic conductive splint that sticks in annular permanent magnnet, the cylindrical magnetic conduction stem that inserts magnetic conductive splint and permanent magnet mesopore, magnetic conductive splint and the magnetic conduction stem that there is mesopore at the center respectively to insert end protrusion and end forms the voice coil loudspeaker voice coil that each neighboring quilt that is interconnected to form front and back locating branch slice (bullet ripple) and the front and back speech coil framework of speech coil framework side-to-side vibrations before and after the control of tubular front and back speech coil framework, front and back speech coil framework of flange can seesaw around the inflow direction with electric current; And permanent magnet and magnetic conductive splint and magnetic conduction stem form field circuit, the electromagnetic force that the front and back speech coil framework increases during along with the voice coil loudspeaker voice coil inflow current and the direction vibration structure that is configured to characteristic swung.
The utility model invention is appended and is provided magnetic conduction stem rear portion diameter less than anterior diameter; Outside magnetic conduction stem formed heavy caliber before preceding speech coil framework inserted; Back speech coil framework inserts the outside, back magnetic conduction stem and forms the small-bore direction vibration structure of characteristic that is, connecting permanent magnet and magnetic conduction stem is the direction vibration structure that is configured to characteristic of the surrounding medium of one.
The utility model invention provides with any one of above-mentioned two kinds of direction vibration structures and is connected with preceding speech coil framework edge overlapping state and can swings up and down and sheet is propped up in the prelocalization of the hard material that vibrates with preceding speech coil framework, be connected with back speech coil framework edge overlapping state and subsequently speech coil framework swing up and down and the direction vibration loud speaker that constitutes characteristic of the back locating branch slice of the soft material that vibrates.
The utility model invention is as the buckle closure formula loud speaker that uses portable terminal; Form accommodation space between buckle closure, shell and the interior device of device by having in the hard shell in soft, be placed in above-mentioned three kinds of direction vibration structures of accommodation space any one, increase the amplification loop that portable terminal receives the sound source signal amplitude; Portable terminal transmission sound source signal is to the radio reception line and the supply line formation of supply amplification loop to the increase sound source signal amplitude of direction vibration structure in amplification loop; And preceding speech coil framework edge is connected with the shell overlapping state, and back speech coil framework edge and interior device overlapping state are connected to the portable terminal buckle closure formula loud speaker of characteristic.
The utility model invention is as portable terminal buckle closure formula loud speaker, append provide in the buckle closure in device for supply with the amplification ring current can pack into battery the power supply receiver or place in the grooved accommodation space of earphone, charging wire and be the portable terminal buckle closure formula loud speaker of characteristic more than any one.
The utility model beneficial effect of the invention
Along with the voice coil loudspeaker voice coil inflow current, the direction vibration structure that the front and back speech coil framework moves simultaneously.
Be bonded at the hard material locating branch slice of sending out high pitch range effect of direction vibration structure one side; Be bonded at the sticking soft material locating branch slice of sending out bass range effect of direction vibration structure opposite side, this direction vibration structure that enriches sound that sends is built-in loud speaker.
Built-in direction vibration loud speaker is put into the buckle closure of mobile terminal structure, during portable terminal user modes such as smart mobile phone, and the portable terminal buckle closure formula loud speaker of not only sounding in the portable terminal and can also send abundant high pitch and bass range.
Description of drawings
Fig. 1 is the cutaway view of direction vibration structure in the utility model
Fig. 2 is the cutaway view of the direction vibration structure of the direction vibration structure of Fig. 1 in the utility model and the field circuit of intermediary's formation on every side one
Fig. 3 is the cutaway view of direction vibration loud speaker in the utility model
Fig. 4 A is the cutaway view of the portable terminal buckle closure formula loud speaker of the utility model
Fig. 4 B is the vertical view of the portable terminal buckle closure formula loud speaker of the utility model
Embodiment further specifies the utility model
The utility model invention is that the direction vibration structure of loudspeaker of built-in direction vibration structure is inserted the portable terminal buckle closure formula loud speaker in the buckle closure that can use portable terminal.
Among the figure, 101. permanent magnets, 102. magnetic conductive splints, speech coil framework before the 103. magnetic conduction stems, 104a.; 104b. back speech coil framework, 105a. prelocalization prop up sheet (bullet ripple), locating branch slice behind the 105b. (bullet ripple), 106. voice coil loudspeaker voice coils, intermediary around 107.; 201a. sheet is propped up in prelocalization, locating branch slice behind the 201b., 301. buckle closures, 302. accommodation space, 303. amplification loops; 304. the radio reception line, 305. sound source signal supply lines, 306. power supply receivers, 307. grooved accommodation spaces.
I. direction vibration structure
Among Fig. 1, in be formed centrally the annular permanent magnnet (101) of mesopore and stick in before and after annular permanent magnnets (101) magnetic conductive splint (102) and insert magnetic conductive splint (102) and the cylindrical magnetic conduction stem (103) of permanent magnet mesopore and dynamic speaker commonly used in the same field circuit that forms of effect that plays.The anterior field of magnetic forece that forms of annular permanent magnnet (101) becomes mobile field of magnetic forece with the rear portion that is bonded at annular permanent magnnet (101) anterior magnetic conductive splint (102), magnetic conduction stem (103), the magnetic conductive splint (102) that is bonded at the annular permanent magnnet rear portion and permanent magnet (101).
Comprise that both sides, space between magnetic conductive splint (102) and the magnetic conduction stem (103) respectively insert the voice coil loudspeaker voice coil (106) that each neighboring quilt that is connected the front and back locating branch slice (105a.105b) that forms speech coil framework (104a.104b) side-to-side vibrations before and after the control and front and back speech coil framework (104a.104b) of tubular front and back speech coil frameworks (104a.104b) and front and back speech coil framework (104a.104b) that the neighboring of end protrusion and end forms flange can seesaw around the inflow direction with electric current.The electromagnetic force that speech coil frameworks (104a.104b) increase during along with voice coil loudspeaker voice coil (106) inflow current before and after in field circuit and swinging.
The loudspeaker unit that dynamic speaker commonly used uses only is provided with a speech coil framework; According to the utility model; Speech coil framework (104a.104b) is in the direction vibration structure before and after being provided with, and front and back all can move up and down and reach the direction vibration effect when voice coil loudspeaker voice coil (106) inflow current.The locating branch slice of adhesion unlike material sends range with the material difference and difference occurs, and then obtains enriching the range regeneration effect before and after the direction vibration structure.
Shown in Figure 1; Magnetic conduction stem (103) rear portion diameter is less than anterior diameter; Outside magnetic conduction stem (103) formed heavy caliber before preceding speech coil framework (104a) inserted, and it is the direction vibration structure of characteristic that back speech coil framework (104b) insertion back outside magnetic conduction stem (103) forms small-bore.When constructing the direction vibration structure of above-mentioned characteristic, speech coil framework (104a) lower end before insert the upper end of back speech coil framework (104b) so not only effectively utilizes the space, also can reduce the thickness of direction vibration structure.
Fig. 2 be the direction vibration structure and on every side intermediary (107) form the cutaway view of the direction vibration structure of characteristic.Intermediary (107) plays in the direction vibration structure and combines magnetic conductive splint (102) on every side, and permanent magnet (101) and magnetic conduction stem (103) are the effect of one.Shown in Figure 2, during intermediary (107), not only simplify the structure of direction vibration structure around using, also improve mechanical safety.
Make the casing that can the vibration of speech coil framework (104a.104b) be sent to outside adhesion face front and back in the contact direction vibration structure, use as long as vibratile object all can be used as loud speaker.During the vibrating object of the front and back adhesion unlike material of the direction vibration structure that entangles, can be used as and to send the loud speaker that enriches range.For example, front adhesion plastic plate, during back adhesion rubber slab, plastic plate sends high pitch, and rubber slab sends bass, and that forms overall simple can enrich the loud speaker that sends high bass.
II. direction vibration loud speaker
Fig. 3 is the cutaway view of direction vibration loud speaker.
Any one direction vibration structure of Fig. 1 and Fig. 2 be connected with preceding speech coil framework (104a) edge overlapping state and with preceding speech coil framework (104a) swing up and down and the prelocalization of the hard material that vibrates props up that sheet (105a) is connected with speech coil framework (104b) edge, back overlapping state and subsequently speech coil framework (104b) swing up and down the soft material that vibrates back locating branch slice (105b) constitute characteristic.
With the difference of dynamic speaker commonly used be, not only have 2 speech coil frameworks (104a.104b) to be arranged at front and back, 2 locating branch slices (105a.105b) also are set.Use the locating branch slice of unlike material, just can send abundant range.Locating branch slice can make the granular locating branch slice in the regular loudspeaker, also can make plane positioning shown in Figure 3 and props up sheet for easy to carry.
III. boxlike loud speaker
Fig. 4 A is to use the cutaway view of the buckle closure formula loud speaker of portable terminal, and Fig. 4 B is the vertical view of the portable terminal buckle closure formula loud speaker of the utility model.
Has soft interior device entirely in the hard shell buckle closure (301) with portable terminal; Form accommodation space (302) between shell and the interior device; Accommodation space (302) is inserted direction vibration structure in the utility model; Can become the direction vibration loud speaker, and the edge of preceding speech coil framework (104a) is connected with the shell overlapping state, the edge of back speech coil framework (104b) is connected with interior folding device state.
Increasing amplification loop (303), portable terminal that portable terminal receives the sound source signal amplitude transmits sound source signal the sound source signal supply line (305) to the increase sound source signal amplitude of direction vibration structure all is the part of necessity to the radio reception line (304) of amplification loop (303) and supply amplification loop (303).Sound source signal receives that the phonation of loud speaker after the amplification is the same with electrodynamic type usually, detailed.
Portable terminal buckle closure formula loud speaker is that portable terminal is connected use with radio reception line (304).Through hard shell generation high pitch range, produce the bass range through device in soft, soft interior device and portable terminal are in overlapping state when using portable terminal.Through the reflection of portable terminal, between buckle closure and portable terminal, pass on the space during bass, near carrying regeneration effect with sound equipment.
In the portable terminal buckle closure formula loud speaker, the interior device of buckle closure (301) for supply with amplification loop (303) power supply can pack into battery power supply receiver (306) or place earphone, more than one compositions of the grooved accommodation space (307) of charging wire.Purpose is in order to strengthen the Portability of buckle closure formula loud speaker.
Shown in Fig. 4 A and Fig. 4 B, the portable terminal buckle closure formula loud speaker of the utility model has comprised power supply receiver (306) and grooved accommodation space (307).
Illustrational appended drawings and related description are not breaking away under the utility model technical field situation, can carry out variation and revise or modification.The claim of the utility model is also with revising or modification in the designated field.
Claims (6)
1. direction vibration structure; It is characterized in that; This direction vibration structure comprise the center have mesopore annular permanent magnnet (101), stick in before and after the neighboring of each end that inserts protrusion of both sides and end in magnetic conductive splint (102), the cylindrical magnetic conduction stem (103) that inserts magnetic conductive splint (102) and permanent magnet (101) mesopore, the space in the middle of magnetic conductive splint (102) and magnetic conduction stem (103) of annular permanent magnnets (101) form the tubular front and back speech coil framework (104a, 104b) of flange, with front and back speech coil framework (104a, 104b) each be interconnected to form the front and back bullet ripple locating branch slices (105a, 105b) of controlling front and back speech coil framework (104a, 104b) side-to-side vibrations and in front and back speech coil framework (104a, 104b) the neighboring around the voice coil loudspeaker voice coil (106) that can seesaw of the inflow direction with electric current; Permanent magnet (101) and magnetic conductive splint (102) and magnetic conduction stem (103) form field circuit, and front and back speech coil framework (104a, 104b) is swung along with the electromagnetic force that increases during inflow current in the voice coil loudspeaker voice coil (106).
2. direction vibration structure according to claim 1; It is characterized in that; The diameter at the rear portion of magnetic conduction stem (103) is less than the diameter of front portion; Outside magnetic conduction stem (103) formed heavy caliber before preceding speech coil framework (104a) inserted, and back speech coil framework (104b) insertion back outside magnetic conduction stem (103) forms small-bore.
3. direction vibration structure according to claim 2 is characterized in that, this direction vibration structure comprise with permanent magnet (101) and magnetic conductive splint (102) and magnetic conduction stem (103) be combined as a whole around intermediary (107).
4. direction vibration loud speaker; It is characterized in that, this direction vibration loud speaker comprise be connected like claim 1 to any one direction vibration structure described in the claim 3, with preceding speech coil framework (104a) edge overlapping state and can with preceding speech coil framework (104a) swing up and down and the hard material prelocalization vibrated prop up sheet (201a), be connected with speech coil framework (104b) edge, back overlapping state and subsequently speech coil framework (104b) swing up and down locating branch slice (201b) behind the soft material that vibrates.
5. portable terminal buckle closure formula loud speaker; It is characterized in that; By have the accommodation space (302) that forms between buckle closure (301), shell and the interior device of device in soft in the hard shell, be placed on accommodation space (302) like described any one direction vibration structure of claim 1 to claim 3, increase amplification loop (303), portable terminal that portable terminal receives the sound source signal amplitude and transmit sound source signal to the radio reception line (304) of amplification loop (303) and supply with supply line (305) formation of amplification loop (303) to the increase sound source signal amplitude of direction vibration structure; And preceding speech coil framework (104a) edge is connected with the shell overlapping state, and back speech coil framework (104b) edge is connected with interior device overlapping state.
6. portable terminal buckle closure formula loud speaker according to claim 5; It is characterized in that, interior unit feeding amplification loop (303) power supply of buckle closure (301) can pack into battery the power supply receiver or place in the grooved accommodation space of earphone, charging wire any one or more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200972700U CN202121769U (en) | 2011-04-06 | 2011-04-06 | Cover type loudspeaker of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200972700U CN202121769U (en) | 2011-04-06 | 2011-04-06 | Cover type loudspeaker of mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202121769U true CN202121769U (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200972700U Expired - Fee Related CN202121769U (en) | 2011-04-06 | 2011-04-06 | Cover type loudspeaker of mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202121769U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104811847A (en) * | 2015-04-29 | 2015-07-29 | 江西聚声泰科技有限公司 | Dual-film earphone |
| CN108650598A (en) * | 2018-04-25 | 2018-10-12 | 歌尔股份有限公司 | A kind of sound-producing device |
-
2011
- 2011-04-06 CN CN2011200972700U patent/CN202121769U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104811847A (en) * | 2015-04-29 | 2015-07-29 | 江西聚声泰科技有限公司 | Dual-film earphone |
| CN108650598A (en) * | 2018-04-25 | 2018-10-12 | 歌尔股份有限公司 | A kind of sound-producing device |
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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: 20120118 Termination date: 20140406 |