CN2794649Y - Magnetostriction vibrating mechanism for cell phone - Google Patents
Magnetostriction vibrating mechanism for cell phone Download PDFInfo
- Publication number
- CN2794649Y CN2794649Y CN 200520057845 CN200520057845U CN2794649Y CN 2794649 Y CN2794649 Y CN 2794649Y CN 200520057845 CN200520057845 CN 200520057845 CN 200520057845 U CN200520057845 U CN 200520057845U CN 2794649 Y CN2794649 Y CN 2794649Y
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- vibrating
- magnetostriction
- vibrating element
- mobile phone
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Abstract
The utility model relates to a magnetostriction vibrating mechanism for a cell phone. The utility model is characterized in that the vibrating mechanism comprises a vibrating element which is made of rare earth giant magnetostriction materials, and a casing which is provided with a vibrating element installing cavity, wherein the outer side of the vibrating element is wound with a drive coil which is matched with an alternating current circuit; both ends of the vibrating element which is wound with the drive coil are inserted into the vibrating element installing cavity in a tight fit way. The rare earth giant magnetostriction materials are utilized to generate micro deformation or sound energy under the action of an electromagnetic field, and the micro deformation or the sound energy can be converted into the energy conversion principle of electromagnetic energy. The rare earth giant magnetostriction materials can cause the length to be changed under the action of the magnetic field to generate displacement vibration or emission sound waves. When both ends of the vibrating element are pressed, the vibration generated by the vibrating element can be transferred out through both ends of the vibrating element, therefore the vibration effect which is the same as the vibration effect of a vibrating motor of the existing cell phone is achieved.
Description
[technical field]
The utility model relates to the mobile phone vibrating mechanism, especially a kind of mobile phone magnetostriction vibrating mechanism.
[technical background]
At present, mobile phone is equipped with vibration incoming call bulletin function, and this vibration incoming call bulletin function is made up of motor and the counterweight eccentric wheel that is installed on its armature spindle usually.Its operation principle is: utilize rotor to drive eccentric wheel and rotate, because eccentric wheel causes asymmetric on the load, produce mechanical oscillation with certain vibration frequency and amplitude, and then this vibration wave is delivered on phone housing or its peripheral structure, phone housing or peripheral structure are vibrated, realize the vibration prompt incoming call.
From operation principle, existing vibrating motor is the same with general motor, all is based on electromagnetic induction principle, and electric energy is converted into mechanical rotation function.Its advantage is that operation principle is reliable, the manufacturing processing technic maturation.Its defective is:
One, existing vibrating motor must have this rotary part of rotor, and has been operated in brush, off-centre and high speed rotation etc. again than bad working environments, and brush, commutator, bearing material are had relatively high expectations; Even if like this, the rotor part working life is also very limited.This is that existing electric machine structure and its operation principle determine, still can't avoid at present.
Two, along with the thin typeization of mobile phone, the thickness requirement of vibrating motor is reduced to 2 millimeters even thinner, but be subjected to the existing structural restriction of vibrating motor, even the chip vibrating motor also is difficult to accomplish below 3 millimeters.
Three, existing mobile phone eccentric wheel vibrating mechanism, its parts all belong to the higher machine components of the precision that is equivalent to the mechanical watch level, need with the processing of special purpose machine tool equipment, also has higher mechanical assembly precision requirement, add the multiple working procedure dependence manually-operated of still needing, thereby consistency of product and qualification rate all can be affected.
[summary of the invention]
The purpose of this utility model is the deficiency that exists at above-mentioned mobile phone vibrating mechanism, and a kind of mobile phone magnetostriction vibrating mechanism is provided.This mobile phone can overcome all defect that existing mobile phone eccentric wheel vibrating mechanism exists with the magnetostriction vibrating mechanism.
The utility model mobile phone magnetostriction vibrating mechanism is characterized in that: a rareearth super magnetostrictive material vibrating member; The vibrating member periphery is wound with drive coil; Drive coil is furnished with alternating current circuit; One is provided with the housing of vibrating member installation cavity; Being wound with drive coil vibrating member two ends is embedded in the vibrating member installation cavity with tight fit.
The utility model mobile phone with the course of work of magnetostriction vibrating mechanism is: this mobile phone is installed in suitable position in the phone housing with the direct holding of magnetostriction vibrating mechanism in phone housing or with tight fit connected modes such as stickups.When under the control of the coil that is wound on the vibrating member periphery at alternating current circuit electric after, promptly produce alternating magnetic field, the vibrating member that rare earth ultra-magnetostriction material is made converts the alternating current of certain frequency and amplitude to mechanical oscillation, the mechanical couplings parts that pass through the tight fit of its two ends and chamber wall again arrive the mobile phone case surface with this vibration transmission, make it to send vibration or sound.
The utility model mobile phone is with the design principle of magnetostriction vibrating mechanism: utilize rare earth ultra-magnetostriction material can produce little distortion or acoustic energy under the effect of electromagnetic field, also little distortion or acoustic energy can be converted into the energy conversion principle of electromagnetic energy, variation on the length can take place in rare earth ultra-magnetostriction material under the effect of magnetic field, can produce displacement and therefore acting; Under action of alternating magnetic field, cyclic extension or shortening will take place, thereby produce vibration or emission sound wave, when the pressurized of vibrating member two ends, the vibration of its generation promptly can pass by two ends, thereby reaches and the same vibrating effect of existing mobile phone vibrating motor.
The utility model mobile phone has the following advantages and effect with the magnetostriction vibrating mechanism:
One, substituting the eccentric rotation of motor with rareearth super magnetostrictive vibration transducing and produce the vibration transducing, is that a kind of principle substitutes at all.Therefore structurally cancel the rotor rotation dynamic component of existing vibrating motor, comprised parts such as rotor coil, brush, commutator, balancing weight or eccentric wheel, simplified complete machine design and processing technology greatly, improved performance indications, reduced manufacturing cost;
Two, because the drive coil of generation driving magnetic field is static, and be easy to by outside heat-conducting medium efficiently radiates heat, can bear sizable power, the characteristics of this device are not have the rotor rotated coil, there is not the frictional dissipation of brush, commutator and bearing, therefore needn't worry that motion damages, prolong working life greatly;
Three, because the alternating magnetic field direction quadrature that the magnetostriction direction of rare earth ultra-magnetostriction material only produces with the drive coil energising, and material shape is irrelevant therewith, therefore, this materials processing can be become bar-shaped or laminar, or even film.Add that drive coil is reasonable in design, the thickness of vibrating mechanism can be reduced to below 2 millimeters, can satisfy the development trend of mobile phone miniaturization, ultra-thinization;
Four, because rare earth ultra-magnetostriction material has high energy density, therefore can accomplish small-volume large-power, and the round mechanical movement that this magnetostriction can be produced, amplify by suitable mechanical enlarger, be coupled to again on the hard objects such as hand set machine shell, produce stronger vibrating effect.
Five, the rare earth ultra-magnetostriction material working band is wide, from per second several times to the expansion back and forth and the contraction of per second hundreds of thousands time, can steady operation.Can pass through custom-designed special IC for this reason, produce the program control different frequency and the alternating current of amplitude, by drive coil, make rare earth ultra-magnetostriction material produce the mechanical oscillation or the sound of different frequency and varying strength, this existing whirling vibration motor is difficult to accomplish.
The utility model mobile phone with the concrete structure of magnetostriction vibrating mechanism by the following drawings and
Embodiment provides in detail.
[description of drawings]
Fig. 1 is the structural representation of the utility model mobile phone with the magnetostriction vibrating mechanism;
Fig. 2 is the another kind of structural representation of the utility model mobile phone with the magnetostriction vibrating mechanism;
Fig. 3 is the utility model mobile phone another structural representation with the magnetostriction vibrating mechanism.
[specific embodiment]
Embodiment 1: from Fig. 1 can be clear that the utility model mobile phone with the magnetostriction vibrating mechanism by forming with rareearth super magnetostrictive material vibrating member 1, drive coil 2, alternating current circuit 3 and the housing 5 that is provided with vibrating member installation cavity 4.Described vibrating member 1 is that a diameter is: the rare earth ultra-magnetostriction material bar of 1～2mm, and length is: 8～10mm, around drive coil 2 is made of number of turns enamel-covered wire outward; The two ends of drive coil 2 are connected with alternating current circuit 3; The vibrating member 1 that is wound with drive coil 2 is arranged in the vibrating member installation cavity 4, and it is tight fit that vibrating member 1 two ends and vibrating member installation cavity 4 have the chamber wall.
The course of work is: use the direct holding of magnetostriction vibrating mechanism in phone housing this mobile phone, by the alternating current of alternating current circuit 3 to drive coil 2 input certain frequencies and amplitude, drive coil 2 will produce corresponding alternating magnetic field, vibrating member 1 is under the effect of this alternating magnetic field, cyclic extension and shortening take place, thereby produce vibration.Simultaneously, vibrating member 1 arrives mobile phone ectosome surface by the tight fit of its two ends and chamber wall with this vibration transmission, has promptly finished the eccentric rotation of original motor and the vibrating function of generation.
The mobile phone that present embodiment provides with the magnetostriction vibrating mechanism according to existing two kinds of mobile phone vibrating motors: hollow cup type and chip vibrating motor is set.The typical sizes of two kinds of vibrating motors: the former is Φ 4 * 10mm, and the latter is Φ 10 * 3.4mm.The mobile phone of present embodiment can satisfy installation on above-mentioned two kinds of mobile phones with the magnetostriction vibrating mechanism.
Embodiment 2: can be clear that from Fig. 2, the basic structure of present embodiment is identical with embodiment 1, its difference is: in order to adapt to the more and more thinner development trend of mobile phone, rare earth ultra-magnetostriction material is made sheet vibrating member 1, it is of a size of 2 * 5 * 1mm, be that its thickness only is 1mm, vibrating member 1 is very tiny, and drive coil 2 can conventional wire-wound, also can take tread flaking, slice structure, the vibrating mechanism that forms is flat as the paper shape, and it can dwindle the housing of vibrating member installation cavity to greatest extent.Its course of work is identical with embodiment 1.
Embodiment 3: the basic structure that can be clear that present embodiment from Fig. 3 is identical with embodiment 1, and its difference is: vibrating member 1 is the bipack-film structure, promptly is bonded by two sizes, rare earth ultra-magnetostriction material thin slice 11 and 12 that performance is identical.The vibrating mechanism that this employing bipack-film structural vibration part 1 is made can reduce the dynamic loss of material effectively and improve dynamic response characteristic.
If the magnetostriction coefficient of two rare earth ultra-magnetostriction material thin slices 11 selecting for use and 12 has difference; Or one be the rare earth ultra-magnetostriction material thin slice, and another piece does not have the magnetostriction performance, and two superimposed being pasted together are adopted cantilever beam structures again so, promptly one fixing, one is unsettled.Change original vibration perpendicular to the alternating magnetic field direction thereby lamination will produce flexural vibrations this moment when drive coil passes to alternating current.It provides another kind of vibration mode for mobile phone.
Claims (4)
1, a kind of mobile phone magnetostriction vibrating mechanism is characterized in that: a rareearth super magnetostrictive material vibrating member; The vibrating member periphery is wound with drive coil; Drive coil is furnished with alternating current circuit; One is provided with the housing of vibrating member installation cavity; Being wound with drive coil vibrating member two ends is embedded in the vibrating member installation cavity with tight fit.
2, according to the described mobile phone of claim 1 magnetostriction vibrating mechanism, it is characterized in that: vibrating member (1) can be bar-shaped.
3, according to the described mobile phone of claim 1 magnetostriction vibrating mechanism, it is characterized in that: vibrating member (1) can be the thin slice of Any shape.
4, according to claim 1 or 3 described mobile phone magnetostriction vibrating mechanisms, it is characterized in that: vibrating member (1) is the bipack-film structure, promptly is bonded by two rare earth ultra-magnetostriction material thin slices (11,12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057845 CN2794649Y (en) | 2005-05-09 | 2005-05-09 | Magnetostriction vibrating mechanism for cell phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057845 CN2794649Y (en) | 2005-05-09 | 2005-05-09 | Magnetostriction vibrating mechanism for cell phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2794649Y true CN2794649Y (en) | 2006-07-12 |
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ID=36812416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520057845 Expired - Fee Related CN2794649Y (en) | 2005-05-09 | 2005-05-09 | Magnetostriction vibrating mechanism for cell phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2794649Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013036490A1 (en) * | 2011-09-06 | 2013-03-14 | Apple Inc. | Low rise speaker assembly having a dual voice coil driver |
| CN103145087A (en) * | 2013-03-14 | 2013-06-12 | 南昌工程学院 | Magnetostrictive composite cantilever beam driven by Terfenol-D sheets |
| CN103492091A (en) * | 2011-04-19 | 2014-01-01 | 日本电气株式会社 | Piezoelectric actuator and electronic device having piezoelectric actuator mounted thereon |
| CN106416046A (en) * | 2014-05-21 | 2017-02-15 | 三美电机株式会社 | Electricity-generating device |
| CN106416047A (en) * | 2014-05-26 | 2017-02-15 | 三美电机株式会社 | Generator device |
-
2005
- 2005-05-09 CN CN 200520057845 patent/CN2794649Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103492091A (en) * | 2011-04-19 | 2014-01-01 | 日本电气株式会社 | Piezoelectric actuator and electronic device having piezoelectric actuator mounted thereon |
| WO2013036490A1 (en) * | 2011-09-06 | 2013-03-14 | Apple Inc. | Low rise speaker assembly having a dual voice coil driver |
| CN103145087A (en) * | 2013-03-14 | 2013-06-12 | 南昌工程学院 | Magnetostrictive composite cantilever beam driven by Terfenol-D sheets |
| CN103145087B (en) * | 2013-03-14 | 2015-09-09 | 南昌工程学院 | The magnetostriction type composite cantilever that Terfenol-D thin slice drives |
| CN106416046A (en) * | 2014-05-21 | 2017-02-15 | 三美电机株式会社 | Electricity-generating device |
| CN106416047A (en) * | 2014-05-26 | 2017-02-15 | 三美电机株式会社 | Generator 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: 20060712 Termination date: 20100509 |