CN101606396B - Diaphragm of the electronic sounder and the electronic sound which has the diaphragm - Google Patents
Diaphragm of the electronic sounder and the electronic sound which has the diaphragm Download PDFInfo
- Publication number
- CN101606396B CN101606396B CN200880004862.4A CN200880004862A CN101606396B CN 101606396 B CN101606396 B CN 101606396B CN 200880004862 A CN200880004862 A CN 200880004862A CN 101606396 B CN101606396 B CN 101606396B
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- Prior art keywords
- vibrating membrane
- electroacoustic transducer
- leaf spring
- magnetic circuit
- supporting member
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/02—Loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/22—Clamping rim of diaphragm or cone against seating
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/041—Centering
- H04R9/043—Inner suspension or damper, e.g. spider
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/03—Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Electromagnetism (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
A diaphragm for electric-acoustic transducers and an electric-acoustic transducer having the diaphragm are disclosed. The diaphragm (12) is coupled at a central position thereof to a coil (11) and is supported at an outer edge thereof by an open end of a casing (20), so that the diaphragm vibrates in response to magnetic flux, formed in a gap defined by a yoke (15), a magnet (16) and a top plate (17), when alternating current signals are applied to the coil (11). The diaphragm (12) further includes a support member (13), which is fastened to one surface of the diaphragm to prevent the diaphragm from excessively sensitively reacting to external force. An annular support protrusion (13a) is provided on the central portion of one surface of the support member (13) to support the coil (11) at the correct position.
Description
Technical field
The present invention relates to vibrating membrane and the electroacoustic transducer with this vibrating membrane for electroacoustic transducer.
Background technology
Usually, electroacoustic transducer is the acoustics output device, for example loud speaker, receiver, buzzer and vibrator, and it will convert mechanical signal to from the signal of telecommunication of signal source input, with output sound or produce vibration force.Earphone and speaker system are to use the representative example of the device of this class acoustics output device.
In traditional electroacoustic transducer, magnet and top board are placed on the yoke with location order, and attached or be welded on the yoke.The coil that is anchored on a surface of vibrating membrane is arranged in the gap of magnet and top board restriction.Therefore, comprise that the magnetic circuit of yoke, magnet and top board and/or coil and vibrating membrane vibrate in response to the magnetic flux that produces according to the direction that is applied to the ac current signal of coil, produce vibration force and/or sound thus in described gap.
Figure 1 illustrates the example of electroacoustic transducer, this electroacoustic transducer uses vibration vibration of membrane output sound, and uses the vibration output vibration force of magnetic circuit.As shown in fig. 1, traditional electroacoustic transducer 1 involving vibrations film D and magnetic circuit M, vibrating membrane D is made by film and coil V is anchored on the surface of vibrating membrane D, and magnetic circuit M comprises yoke y, magnet m and top board p, and produces magnetic flux in response to the ac current signal that is applied to coil V.Traditional electroacoustic transducer 1 also comprises leaf spring S and rivet pin R, and leaf spring S is resiliency supported magnetic circuit M in shell C, and rivet pin R is anchored on shell C with leaf spring S.
Yet, in the vibrating membrane D according to the electroacoustic transducer of conventional art, must use adhesive that coil is adhered to thin synthetic resin vibrating membrane.Here, in the relatively little situation of electroacoustic transducer, because coil and vibrating membrane are little, and specifically, vibrating membrane may be out of shape easily, so be difficult to handle them and coil is adhered to vibrating membrane.In addition, the correct part (center) that coil is arranged in vibrating membrane is very difficult.
In addition, to use vibration vibration of membrane output sound and use in the situation of dual electroacoustic transducer of vibration output vibration force of magnetic circuit at electroacoustic transducer, even when only having the magnetic circuit vibration in the frequency range of the ac current signal that is being applied to coil, thin vibrating membrane also may vibrate undesirably, and this is because vibrating membrane is lighter than magnetic circuit.Therefore, problem is that magnetic circuit has stood vibration loss, and the amount of this vibration loss equals the amount of vibrating membrane vibration.
In addition, in traditional electroacoustic transducer, when owing to being not intended to or when deliberately making external force be applied to electroacoustic transducer, for example in the whereabouts shock-testing that is used for the testing transducer durability, the leaf spring that supports in the enclosure magnetic circuit may be unable to bear the load of the magnetic circuit that moves according to the law of inertia, so that the resilient actuating of leaf spring may surpass elastic limit, described elastic limit is that magnetic circuit is in response to the maximum magnitude of coil normal vibration with output sound or vibration force.In this case, leaf spring may be out of shape, and magnetic circuit may be impaired, and perhaps other element in the shell may be out of shape or be impaired.
In addition, in traditional electroacoustic transducer, because yoke, magnet and top board mutually superpose and place and by using adhesive or being bonded to each other by welding, so shortcoming is, the workman is inconvenient to carry out combined process, and is coated with regional irregular around the part of adhesive.
Summary of the invention
Technical problem
Therefore, the present invention considers the above problem that occurs in the prior art, and the object of the present invention is to provide a kind of vibrating membrane and the electroacoustic transducer with this vibrating membrane for electroacoustic transducer, wherein, can be accurately and easily coil is arranged in with being free from mistakes the vibrating membrane central part, prevented because the vibration loss of the magnetic circuit of vibrating membrane generation of vibration, and prevented the leaf spring in the shell, magnetic circuit or other deformed element or impaired, and the structure of described vibrating membrane and electroacoustic transducer so that: the yoke that consists of magnetic circuit, magnet and top board are bonded to each other and do not use adhesive or welding, thereby have prevented that magnetic circuit is owing to the foreign substance such as adhesive becomes untidy.
Technical scheme
In order to finish above purpose, in one aspect, the invention provides a kind of vibrating membrane for electroacoustic transducer, this vibrating membrane is anchored on a surface of coil at central part, and its outward flange is supported by the openend of shell, so that vibrating membrane vibrates in response to the magnetic flux that forms in the gap that is limited by yoke, magnet and top board according to the ac current signal that is applied to coil, this vibrating membrane comprises: supporting member, this supporting member is anchored on a surface of vibrating membrane, to prevent described vibrating membrane external force extrasensitivity ground is reacted; And first annular support protrusion, this first annular support protrusion is arranged on the central part of the first surface of supporting member, is used for coil is remained on the tram.
Supporting member can be the thin plate spring that is made of metal.Alternatively, supporting member can be the leaf spring that comprises the edge that forms respectively this leaf spring central part and outside, and center rim and outer rim are bonded to each other integratedly by elastic rib.As further alternatively, supporting member can be to comprise forming respectively this leaf spring central part and outside edge leaf spring, center rim and outer rim are bonded to each other integratedly by elastic rib, wherein, the first annular support protrusion is generally perpendicularly outstanding from the circumferential inward flange of center rim to a side of described supporting member.In addition, on the circumferential outer edge of the second surface of supporting member, the second annular support protrusion can be set, be used for vibrating membrane is remained on the tram.
In order to realize above purpose, on the other hand, the invention provides a kind of electroacoustic transducer, this transducer comprises: vibrating membrane, this vibrating membrane is provided with the coil of the central part on a surface that is anchored on vibrating membrane, and described vibrating membrane its outer edges place is supported by the openend of shell; When being included in ac current signal and being applied to described coil, magnetic circuit, this magnetic circuit form yoke, magnet and the top board of magnetic flux; And leaf spring, this leaf spring is used for resiliency supported magnetic circuit in described shell, so that by described vibration vibration of membrane output sound, and the generation of vibration vibration force by magnetic circuit, described electroacoustic transducer also comprises supporting member and annular support protrusion, described supporting member is anchored on a surface of described vibrating membrane and to prevent described vibrating membrane external force extrasensitivity ground is reacted, described annular support protrusion is arranged on the central part of the first surface of described supporting member, is used for described coil is remained on the tram.
In order to realize above purpose, on the other hand, the invention provides a kind of electroacoustic transducer, this electroacoustic transducer comprises: vibrating membrane, this vibrating membrane is provided with the coil of a centre of surface section that is anchored on described vibrating membrane, and described vibrating membrane its outer edges place is supported by the openend of shell; When being included in ac current signal and being applied to described coil, magnetic circuit, this magnetic circuit form yoke, magnet and the top board of magnetic flux; And leaf spring, this leaf spring is used for resiliency supported magnetic circuit in described shell, so that by described vibration vibration of membrane output sound, and passes through the generation of vibration vibration force of magnetic circuit, and wherein: the central part of described outer casing bottom protrudes predetermined altitude; The central part of the leaf spring of lower surface level is arranged on the upper surface of described outstanding central part of described outer casing bottom; The described central part of described leaf spring and the described outstanding central part of described shell are assemblied in the lower end of rivet pin, so that the described outstanding central part of the described central part of described leaf spring and described shell is subjected to described rivet pin compression and keeps, described rivet pin is provided with brake component in the top; Described yoke is arranged on the upper surface of described leaf spring, and the described yoke therein heart has opening and its lower surface is inclined upwardly to inward flange from its outward flange; The described top board of the described magnet of annular and annular is arranged on the central part and periphery of upper surface of described yoke, so that define the gap in described magnet and described top board, described coil is arranged in the described gap; The circumferential extension outer surface of described leaf spring had not only covered the circumferential exterior surface of described yoke but also had covered the described magnet that is arranged in described yoke periphery and the circumferential exterior surface of described top board, and bend on the upper surface of described top board, with compression with keep described yoke, described magnet and described top board; And the inner surface at described shell aperture end is equipped with supporting member, circumferential outer edge at the first surface of described supporting member has annular support protrusion, described annular support protrusion is with described vibrating membrane maintenance and be supported in the tram, second surface at described supporting member arranges annular support protrusion, and described annular support protrusion is with described coil maintenance and be supported in the tram.
From the detailed description below with reference to accompanying drawing, will more clearly understand the features and advantages of the present invention.The term that uses in specification and claims and word needn't be subjected to the restriction of common implication or dictionary meanings, select to illustrate in the best way design of the present invention but be construed as the expression inventor, and it must be understood that as its implication and design are suitable for scope and spirit of the present invention, thereby promote the understanding to the technology of the present invention.
Advantageous effects
In the present invention, diaphragm structure become so that: coil is assemblied in the annular support protrusion top of supporting member, so that can be accurately and easily coil is arranged in with being free from mistakes the central part of vibrating membrane.
In addition, the invention provides the electroacoustic transducer that a kind of magnetic circuit can separate with vibrating membrane vibration.Therefore, even when applying its frequency range to coil and only make the ac current signal of magnetic circuit vibration, prevented that also the vibrating membrane more light than magnetic circuit from vibrating undesirably, therefore prevented because the vibration loss of the magnetic circuit that the vibrating membrane vibration causes.
In addition, the present invention can prevent leaf spring elastic movement because since be not intended to or when deliberately applying external force to electroacoustic transducer (for example in the whereabouts shock-testing that is used for the test durability) leaf spring can not stand to surpass its elastic limit according to the load of the magnetic circuit of law of inertia motion.Therefore, can prevent leaf spring, magnetic circuit or other deformed element or impaired that shell is interior.
In addition, in the present invention, yoke, magnet and top board are bonded to each other and are anchored on leaf spring, and do not use adhesive or welding.That is, the present invention is configured so that: resiliency supported comprises that the outward flange of leaf spring of the magnetic circuit of yoke, magnet and top board extends and is crooked, to cover and to keep the circumferential exterior surface of magnetic circuit.Therefore, make magnetic circuit and its technique that is anchored on leaf spring simplified.In addition, can prevent owing to the foreign substance such as adhesive makes magnetic circuit mixed and disorderly.
Description of drawings
Fig. 1 shows traditional electroacoustic transducer and the cutaway view of the structure of the vibrating membrane that uses in electroacoustic transducer;
Fig. 2 shows the stereogram according to the structure of the first execution mode of vibrating membrane of the present invention;
Fig. 3 shows the exploded perspective view according to the structure of the first execution mode of vibrating membrane of the present invention;
Fig. 4 shows the cutaway view according to the operation of the first execution mode of vibrating membrane of the present invention;
Fig. 5 shows the stereogram according to the structure of the second execution mode of vibrating membrane of the present invention;
Fig. 6 shows the amplification view according to the key component of the second execution mode of vibrating membrane of the present invention;
Fig. 7 shows the view sub-anatomy according to the structure of the first execution mode of electroacoustic transducer of the present invention;
Fig. 8 and Fig. 9 show the cutaway view according to the structure of the first execution mode of electroacoustic transducer of the present invention;
Figure 10 shows the cutaway view according to the structure of the second execution mode of electroacoustic transducer of the present invention;
Figure 11 and Figure 12 show the cutaway view according to the operation of the second execution mode of electroacoustic transducer of the present invention;
Figure 13 shows the exploded perspective view of another embodiment of the invention; And
Figure 14 shows the cutaway view of execution mode among Figure 13.
The description of element in the＜accompanying drawing 〉
10: electroacoustic transducer 11: coil
12: vibrating membrane 13: supporting member
13a: the first annular support protrusion 13b: center rim (rim)
13c: outer rim 13d: elastic rib
13e: the second annular support protrusion 14: magnetic circuit
15: yoke 16: magnet
17: top board 18: leaf spring
18a: fastening edge 18b: support edge
18c: elastomeric element 19: rivet pin
19a: brake
Embodiment
From the detailed description below in conjunction with accompanying drawing, will more clearly understand above and other purpose of the present invention, feature and advantage.
Hereinafter, describe in detail with reference to the accompanying drawings according to of the present invention for electroacoustic transducer vibrating membrane and have the preferred implementation of the electroacoustic transducer of this vibrating membrane.
Should with reference to accompanying drawing, wherein, in different accompanying drawings, represent same or analogous assembly with identical Reference numeral now.In addition, in describing process of the present invention, with the description of omitting known function and structure, so that can more clearly describe the present invention.
Before describing the present invention, accompanying drawing is described, provide accompanying drawing to be used for the understanding of the present invention.Fig. 2 shows the stereogram according to the structure of the first execution mode of vibrating membrane of the present invention.Fig. 3 shows the exploded perspective view according to the structure of the first execution mode of vibrating membrane of the present invention.Fig. 4 shows the cutaway view according to the operation of the first execution mode of vibrating membrane of the present invention.
Fig. 5 shows the stereogram according to the structure of the second execution mode of vibrating membrane of the present invention.Fig. 6 shows the amplification view according to the key component of the second execution mode of vibrating membrane of the present invention.Fig. 7 shows the view sub-anatomy according to the structure of the first execution mode of electroacoustic transducer of the present invention.
Fig. 8 and Fig. 9 show the cutaway view according to the structure of the first execution mode of electroacoustic transducer of the present invention.Figure 10 shows the cutaway view according to the structure of the second execution mode of electroacoustic transducer of the present invention.Figure 11 and Figure 12 show the cutaway view according to the operation of the second execution mode of electroacoustic transducer of the present invention.Figure 13 shows the exploded perspective view of another embodiment of the invention.Figure 14 shows the cutaway view of execution mode among Figure 13.
Below describe with reference to the accompanying drawings in this article the present invention in detail.
As shown in Fig. 2 and Fig. 4, at the vibrating membrane for electroacoustic transducer according to the present invention, a surface of coil 11 is anchored on the central part of vibrating membrane 12, and vibrating membrane 12 its outer edges places are supported by the openend of shell 20, so that vibrating membrane 12 vibrates in response to the magnetic flux that forms in the gap, described magnetic flux is limited by yoke 15, magnet 16 and top board 17 in response to the ac current signal that is applied to coil 11.Vibrating membrane 12 of the present invention also comprises supporting member 13, and supporting member 13 is anchored on a surface of vibrating membrane 12, to prevent the reaction of 12 pairs of external force extrasensitivities of vibrating membrane ground.In addition, the central part on a surface of supporting member 13 arranges annular support protrusion 13a, is positioned at the tram with hold-in winding 11.
As a reference, term " the extrasensitivity reaction of vibrating membrane 12 " means following event: even when input exceeds the signal of the frequency range corresponding with ac current signal, even perhaps when applying the external force that (for example) produce by freely falling body, vibrating membrane 12 is vibration-generating also, and described ac current signal is applied to coil 11 to use the vibration output sound of vibrating membrane 12.
Here, in the vibrating membrane 12 according to electroacoustic transducer of the present invention, preferably, supporting member 13 comprises the metal sheet spring and has following structure: central part and outside at supporting member 13 arrange respectively rib 13b and 13c, and center rim 13b and outer rim 13c are by each other one combination of elastic rib 13d.
Supporting member 13 can adhere to or be welded to the periphery of central dome part of vibrating membrane 12 and the periphery of vibrating membrane 12, perhaps alternatively, its can tight adhesion to the whole zone of vibrating membrane 12.As further alternatively, supporting member 13 can be made by metal sheet, makes himself to vibrate with output sound.
Here, the center rim 13b of supporting member 13 and outer rim 13c are anchored on respectively the periphery of central dome part of vibrating membrane 12 and the periphery of vibrating membrane 12.
In addition, the annular support protrusion 13a of supporting member 13 can circumferential inward flange or outward flange along a direction from center rim 13b give prominence to, perhaps alternatively, the circumferential inward flange that it can be along a direction from center rim 13b or each the outward flange are outstanding.Owing to use the structure of annular support protrusion, the inner surface of coil 11 or outer surface are assemblied in annular support protrusion 13a top or are assemblied among the annular support protrusion 13a, so that coil 11 can stably be contained on the supporting member.
In addition, can form ring-shaped depression in the surface of center rim 13b, this ring-shaped depression substitutes the annular support protrusion 13a of supporting member 13, and the execution function identical with annular support protrusion 13a.In this case, coil 11 can stably be contained in the ring-shaped depression.
In addition, toroidal magnet main body 11a can adhere to the circumferential exterior surface of the coil 11 that is fastened on the supporting member 13.
In this case, when not having ac current signal to be input to coil 11, the magnetic force of magnet 16 is applied to top board 17 and yoke 15, so that they attract each other.When ac current signal was applied to coil 11, the magnetic force of toroidal magnet main body added input signal to.Therefore, can further strengthen vibration force.
Have above-mentioned structure according to vibrating membrane 12 of the present invention in, because coil 11 be assemblied in supporting member 13 annular support protrusion 13a the top or be assemblied among the annular support protrusion 13a, so it can be fixed in the tram, prevent that thus when vibrating membrane 12 vibration coil 11 occuring tilts also therefore to make the phenomenon of output distortion along incorrect direction.
In addition, use the annular support protrusion 13a of supporting member 13, coil 11 can be accurately and easily is fixed in the center of vibrating membrane 12 and does not produce error.
Simultaneously, as shown in Figure 4, vibrating membrane 12 according to the present invention is supported on the inner surface of openend of shell 20.Magnetic circuit 14 uses leaf spring 18 elastic fastenings in the central part of shell 20 inner surfaces, produces thus electroacoustic transducer 10, and magnetic circuit 14 comprises yoke 15, magnet 16 and top board 17, and is used for forming magnetic flux in response to the ac current signal that is applied to coil 11.The magnetic circuit 14 of supposing to be supported by leaf spring 18 is in response to the resonant frequency range internal vibration of coil 11 at 100Hz to 175Hz, and magnetic circuit 14 must firmly vibrate in response to coil 11.Yet, in the situation that the vibrating membrane 12 that comprises coil 11 in conventional art is not supported by supporting member 13 because magnetic circuit 14 is than vibrating membrane 12 weights, so magnetic circuit 14 with relatively little amplitude vibrations, but vibrating membrane 11 is with relatively large amplitude vibrations.Therefore, can not produce large vibration force.
Yet, different from conventional art, be anchored among the present invention of vibrating membrane 12 at supporting member 13, supporting member 13 supports the vibration of vibrating membrane 12 and constrained vibration film 12, so that when frequency signal is applied to coil 11, magnetic circuit 14 can vibrate.Therefore, the vibration that has prevented magnetic circuit 14 is owing to the vibration of vibrating membrane 12 diminishes, so that magnetic circuit can be with relatively large amplitude vibrations.
Namely, in the present invention, separate at magnetic circuit 14 and vibrating membrane 12 in the situation of vibration, even, also prevented thin and vibrated than magnetic circuit 14 light vibrating membranes 12 so that during the ac current signal in the frequency range (for example resonance frequency of scope from 100Hz to 175Hz) of magnetic circuit 14 vibration when only applying.Therefore, prevented the vibration loss of the magnetic circuit 14 of the amount corresponding with the vibratory output of vibrating membrane 12.
In addition, as shown in Fig. 5 and Fig. 6, in the vibrating membrane 12 of electroacoustic transducer of the present invention, keep vibrating membrane 12 can be arranged on the corresponding surperficial circumferential outer edge of outer rim 13c at the second annular support protrusion 13e of tram.
Here, the second annular support protrusion 13e can be arranged on the surface with the surface opposite that is provided with annular support protrusion 13a, perhaps alternatively, its can be arranged on along with the surface of the surperficial equidirectional orientation that is provided with annular support protrusion 13a on.
In this case, the assembling of the circumferential outer edge of vibrating membrane 12 also is contained in the circumferential inner surface of the second annular support protrusion 13e, has prevented that therefore vibrating membrane 12 is undesirably from supporting member 13 displacements.
Simultaneously, as shown in Fig. 7 to Fig. 9, electroacoustic transducer 10 of the present invention comprises and is provided with coil 11 and the openend by shell 20 supports its outer peripheral vibrating membrane 12 that coil 11 is anchored on the central part on 12 1 surfaces of vibrating membrane.Electroacoustic transducer 10 also comprises magnetic circuit 14.Magnetic circuit 14 comprises yoke 15, magnet 16 and the top board 17 that is used to form magnetic flux when ac current signal is applied to coil 11.Electroacoustic transducer 10 also comprises leaf spring 18, and the magnetic circuit 14 in the leaf spring 18 resiliency supported shells 20 so that electroacoustic transducer 10 uses the vibration output sound of vibrating membrane 12, and uses the generation of vibration vibration force of magnetic circuit 14.Electroacoustic transducer 10 also comprises supporting member 13 and annular support protrusion 13a, supporting member 13 is anchored on the surface of vibrating membrane 12, to prevent the reaction of 12 pairs of external force extrasensitivities of vibrating membrane ground, annular support protrusion 13a is arranged on the central part on 13 1 surfaces of supporting member, is positioned at the tram with hold-in winding 11.
In electroacoustic transducer 10 of the present invention, vibrating membrane 12 can comprise the film of being made and being had major axis and minor axis by synthetic resin.Being shaped as of vibrating membrane 12: be formed centrally therein the central dome part, around dome portion, form planar section, around planar section, form the annular domed part, form planar section around the annular domed part, described annular domed part is along the direction projection identical with the vertical axes of central dome part.
In addition, in electroacoustic transducer 10 of the present invention, supporting member 13 can comprise the metal sheet spring, and it is shaped as: central part and outside at supporting member 13 arrange respectively annular support protrusion 13b and 13c, and center rim 13b and outer rim 13c are by each other integratedly combination of elastic rib 13d.
Supporting member 13 can adhere to or be welded to the outer peripheral planar section of central dome part of vibrating membrane 12 and the outer peripheral planar section of vibrating membrane 12, and perhaps alternatively, it can closely adhere to the whole zone of vibrating membrane 12.As further alternative, supporting member 13 can be made by metal sheet, so that himself vibrates with output sound.(except above-mentioned structure, the total structure of supporting member 13 is identical with the vibrating membrane of above-mentioned electroacoustic transducer 12).
In addition, in electroacoustic transducer 10 of the present invention, the yoke 15 that consists of magnetic circuit 14 has therein plane body or the piece of heart opening.Yoke 15 can comprise projection so that limit the gap by yoke 15, magnet 16 and top board 17, described projection be arranged at least one of the central part of yoke 15 and circumferential outer edge or all on, and have the height identical with magnet 16 and top board 17.
The magnet 16 that consists of magnetic circuit 14 can comprise the first magnetic body and the second magnetic body, the first magnetic body has circular bulk and is placed in the central part of yoke 15, and the second magnetic body has annular and separating the position ring of preset distance around the first magnet with the first magnetic body.It is feasible only having a structure that is contained on the yoke 15 in circle and the toroidal magnet main body.
In addition, in magnetic circuit 14, it is the tungsten piece that counterweight 4a(can be set on the circumferential exterior surface of magnet 16 and top board 17), to increase the weight of magnetic circuit 14, therefore increase its vibration force.
Preferably, in electroacoustic transducer 10 of the present invention, leaf spring 18 comprises fastening edge 18a, support edge 18b and elastomeric element 18c, fastening edge 18a uses rivet pin 19 to be anchored on the central part of shell 20 inner surfaces, support edge 18b keeps and support magnetic circuit 14, elastomeric element 18c is flat shape and is attached to fastening edge 18a from fastening edge 18a extension and with support edge 18b, with resiliency supported magnetic circuit 14.
Here, preferably, fastening edge 18a is fastened to the central part of inner surface of outer cover by being assembled to rivet pin 19 tops.
In the clearly demarcated electroacoustic transducer 10 of the basis with said structure, as shown in Figure 8, suppose the magnetic circuit 14 that supported by leaf spring 18 in response to coil 11 at 100Hz to 175Hz or in the resonant frequency range internal vibration of 150Hz to 200Hz, magnetic circuit 14 must be in response to coil 11 vibrations.Yet, in the situation of the conventional art that the vibrating membrane 12 that comprises coil 11 is not supported by supporting member 13 because magnetic circuit 14 is than vibrating membrane 12 weights, so magnetic circuit 14 with relatively little amplitude vibrations, but vibrating membrane 11 is with relatively large amplitude vibrations.Therefore, can not produce large vibration force.
Yet, different from conventional art, be anchored among the present invention of vibrating membrane 12 at supporting member 13, supporting member 13 supports the vibration of vibrating membrane 12 and constrained vibration film 12, so that magnetic circuit 14 can vibrate in response to the frequency signal that is applied to coil 11.Therefore, the vibration that has prevented magnetic circuit 14 is owing to the vibration of vibrating membrane 12 diminishes, so that magnetic circuit with relatively large amplitude vibrations, produces relatively strong vibration force thus.
Simultaneously, in electroacoustic transducer 10 of the present invention, as shown in Figure 9, the magnetic flux that produces in the gap in the ac current signal of 12 pairs of coils 11 of vibrating membrane and the magnetic circuit 14 reacts, and therefore with the resonance frequency vibration of 300Hz or in the scope internal vibration from 300Hz to 20KHz.Here, because magnetic circuit 14 is more not mobile undesirably so 12 pairs of coils 11 of vibrating membrane react than vibrating membrane 12 weights.This vibration output sound of vibrating membrane 12.
In addition, as shown in Figure 10, the make of electroacoustic transducer 10 of the present invention can so that: each in magnet 16 and the top board 17 therein heart has opening, the end extension of rivet pin 19 is also passed yoke 15, magnet 16 and top board 17, and brake 19a is arranged on the end of rivet pin 19, to prevent surpassing elastic limit for the resilient actuating of the leaf spring 18 that supports magnetic circuit 14.
In this case, as shown in Figure 11 and Figure 12, the coil 11 that is anchored on 12 1 surfaces of vibrating membrane is arranged in by yoke 15, is contained in the gap that magnet 16 on the yoke 15 and top board 17 limit.The magnetic circuit 14 that comprises yoke 15, magnet 16 and top board 17 vibrates in response to the magnetic flux that produces in the gap according to the ac current signal direction that is applied to coil 11, produces thus vibration force.Here, if Oscillation Amplitude is excessive because input value is high, perhaps, if owing to being not intended to or deliberately causing external force to be applied to electroacoustic transducer (for example in the whereabouts shock-testing that is used for the testing transducer durability), the leaf spring 18 that then is used for support magnetic circuit 14 may be unable to bear the load of the magnetic circuit 14 that moves according to the law of inertia, so that the resilient actuating of leaf spring may surpass its elastic limit.In this case, may between magnetic circuit 14, coil 11 and vibrating membrane 12, produce interference.
Yet, in the present invention, as shown in the drawing, even not being able to take load and its resilient actuating of magnetic circuit 14, leaf spring 18 do not surpass its elastic limit, because the motion that the brake component 19a of rivet pin 19 makes magnetic circuit 14 stop and therefore prevents and treats magnetic circuit 14 is above its elastic limit, so also can prevent leaf spring 18 distortion.
Equally, the brake component of rivet pin has been realized being used for preventing that magnetic circuit 14 is about surpassing the structure of elastic limit towards the direction motion of vibrating membrane 12.As for the direction relative with vibrating membrane 12, the inner surface of shell 20 is used for preventing that the motion of magnetic circuit 14 from surpassing elastic limit.
In addition, in the structure of the magnetic circuit 14 that keeps electroacoustic transducer 10 of the present invention, the circumferential exterior surface of leaf spring 18 is along a direction extension and cover the circumferential exterior surface that is contained in the magnetic circuit 14 on the leaf spring 18.In addition, the extending edge of crooked leaf spring 18 is with compression and so firm magnetic circuit 14 that keeps.
Here, the circumferential exterior surface of leaf spring 18 can be the circumferential exterior surface of support edge 18b.
In addition, form step portion in the circumferential outer edge of the upper surface of top board 17, so that the outward flange of leaf spring 18 bendings contacts with the step portion compact surface of top board 17, top board 17 is arranged in magnetic circuit 14 uppermost positions.Preferably, be formed on the degree of depth of the step portion in the circumferential outer edge of top board 17 upper surfaces corresponding to the thickness of leaf spring 18.Such reason is, if with the curved edge of the leaf spring 18 of top board 17 upper surface close contacts and the flush of top board 17, then can prevent magnetic flux bleed-through.
Equally, consisting of the magnet 16 of magnetic circuit 14 and peripheral surface and its compressed that bends on the top board 17 of top board 17 supported edge 18b therefore also is held.
Therefore, yoke 15, magnet 16 and the top board 17 that consists of magnetic circuit 14 can be firmly fixed at the tram, and not use adhesive or welding.
Simultaneously, in electroacoustic transducer 10 of the present invention, as shown in Figure 13, on each in the central part on 13 1 surfaces of leaf spring and its another surperficial outward flange, local support projection 13f can be set, the outstanding dotted line shape that forms of local support projection 13f.In this case, in the position corresponding to local support projection 13f, form respectively recess 11b and 12a in coil 11 on being contained in corresponding local support projection 13f and the vibrating membrane 12, so that local support projection 13f is assembled among corresponding the insertion recess 11b and 12a.
Here, local support projection 13f substitutes above-mentioned annular support protrusion 13a and the second annular support protrusion 13e.Local support projection 13f can substitute annular support protrusion 13a and the second annular support protrusion 13e simultaneously, perhaps alternatively, as required, among alternative annular support protrusion 13a and the second annular support protrusion 13e only of among the local support projection 13f.
In this case, when coil 11 or vibrating membrane 12 were attached to leaf spring 13, the local support projection 13f of leaf spring 13 engaged with the recess 11b of coil 11 or the recess 12a of vibrating membrane 12, so that can easily coil 11 or vibrating membrane 12 be arranged in the tram.In addition, can guide coil 11 or vibrating membrane 12, so that it is attached to leaf spring 13 along correct direction.
Simultaneously, as shown in Figure 14, the electroacoustic transducer 10 involving vibrations films 12 of another execution mode according to the present invention, vibrating membrane 12 is provided with the coil 11 of the central part that is anchored on 12 1 surfaces of vibrating membrane, and its outward flange is by the openend support of shell 20.Electroacoustic transducer 10 also comprises magnetic circuit 14.Magnetic circuit 14 comprises yoke 15, magnet 16 and top board 17, is used for forming when ac current signal is applied to coil 11 magnetic flux.Electroacoustic transducer 10 also is included in the leaf spring 18 of shell 20 interior resiliency supported magnetic circuits 14, so that electroacoustic transducer 10 uses the generation of vibration vibration force of vibration output sound and the use magnetic circuit 14 of vibrating membrane 12.The central part of shell 20 bottoms projects to predetermined altitude.On the upper surface of the outstanding central part of shell 20 bottoms, arrange the central part of the leaf spring 18 of its lower surface level.The outstanding central part of the central part of leaf spring 18 and shell 20 bottoms is assemblied in the top of rivet pin lower end, so that they are subjected to the rivet pin compression and keep, this rivet pin is provided with brake component 19a in the top.Arrange yoke 15 at leaf spring 18 upper surfaces, the yoke 15 therein heart has opening, and the lower surface of yoke 15 is inclined upwardly towards inward flange from its outward flange.Central part and periphery at the upper surface of yoke 15 are arranged toroidal magnet 16 and annular roof plate 17, so that limit the gap that is furnished with coil 11 in magnet 16 and top board 17.The circumferential extension outer surface of leaf spring 18 covers simultaneously the circumferential exterior surface of yoke 15 and is arranged in magnet 16 on yoke 15 peripheries and the circumferential exterior surface of top board 17, and bend on the upper surface of top board 17, thereby compression and maintenance yoke 15, magnet 16 and top board 17.Supporting member 13 is contained on the inner surface of openend of shell 20, circumferential outer edge on 13 1 surfaces of supporting member is provided with annular support protrusion 13e so that vibrating membrane 12 is contained in and is supported in the tram, and is provided with annular support protrusion 13a so that coil 11 is contained in and is supported in the tram on another surface of supporting member 13.
In this embodiment, because leaf spring 18 is anchored on the outstanding central part of shell 20, leaf spring 18 can move up or down in the position that is higher than shell 20 bottoms.In addition, because the lower surface of yoke 15 tilts, so when leaf spring 18 moved downward, yoke 15 can move downward in the mode of not disturbing leaf spring 18.
Above-mentioned the present invention is electroacoustic transducer (signal output apparatus), such as loud speaker, receiver, buzzer and vibrator etc.Above-mentioned application of installation must be considered to fall within the scope of the present invention to the situation of earphone or speaker system.For example, be applied at shell 20 in the situation of earphone outer covering, the present invention can be used as earphone.
Although disclose preferred implementation of the present invention for illustrative purpose, but it should be appreciated by those skilled in the art that, in the situation that does not break away from the disclosed scope and spirit of the present invention of claims, different modifications, interpolation and alternative form are feasible.This class modification, interpolation and replacement form must be considered to fall in the scope of claim delimitation of the present invention.
Claims (31)
1. vibrating membrane that is used for electroacoustic transducer, described vibrating membrane therein heart section is anchored on a surface of coil (11), and described vibrating membrane supports at the openend of its outer edge by shell (20), so that described vibrating membrane (12) in response to according to the ac current signal that is applied to described coil (11) by yoke (15), the magnetic flux that forms in the gap that magnet (16) and top board (17) limit and vibrating, described vibrating membrane (12) comprising: supporting member (13), this supporting member (13) is fixed in a surface of described vibrating membrane (12), is used for preventing that described vibrating membrane (12) from reacting external force extrasensitivity ground; And first annular support protrusion (13a), this first annular support protrusion (13a) is arranged on the central part of the first surface of described supporting member (13), is used for described coil (11) is remained on the tram.
2. the vibrating membrane for electroacoustic transducer according to claim 1, wherein, described supporting member (13) is the thin plate spring that is made of metal.
3. the vibrating membrane for electroacoustic transducer according to claim 1, wherein, described supporting member (13) is the leaf spring that comprises center rim (13b) and outer rim (13c), described center rim (13b) and outer rim (13c) form respectively central part and the outside of described leaf spring, and described center rim (13b) and outer rim (13c) are bonded to each other by elastic rib (13d) integratedly.
4. the vibrating membrane for electroacoustic transducer according to claim 1, wherein, described supporting member (13) is the leaf spring that comprises center rim (13b) and outer rim (13c), described center rim (13b) and outer rim (13c) form respectively central part and the outside of described leaf spring, described center rim (13b) and outer rim (13c) are bonded to each other by elastic rib (13d) integratedly, wherein, described the first annular support protrusion (13a) is generally perpendicularly outstanding from the circumferential inward flange of described center rim (13b) to a side of described supporting member (13).
5. the vibrating membrane for electroacoustic transducer according to claim 1, wherein, described supporting member (13) is the leaf spring that comprises center rim (13b) and outer rim (13c), described center rim (13b) and outer rim (13c) form respectively central part and the outside of described leaf spring, described center rim (13b) and outer rim (13c) are bonded to each other by elastic rib (13d) integratedly, and described the first annular support protrusion (13a) is generally perpendicularly given prominence to from the circumferential outer edge of described center rim (13b) to a side of described supporting member (13).
6. the vibrating membrane for electroacoustic transducer according to claim 4, wherein, described the first annular support protrusion (13a) is generally perpendicularly outstanding from the circumferential inward flange of described center rim (13b) and the outward flange each to a side of described supporting member (13).
7. the vibrating membrane for electroacoustic transducer according to claim 1, wherein, circumferential outer edge at the second surface of described supporting member (13) arranges the second annular support protrusion (13e), is used for described vibrating membrane (12) is remained on the tram.
8. the vibrating membrane for electroacoustic transducer according to claim 1, wherein, described shell (20) comprises headset main body.
9. electroacoustic transducer, comprise: vibrating membrane (12), this vibrating membrane (12) is provided with the coil (11) of a centre of surface section that is anchored on described vibrating membrane (12), and described vibrating membrane (12) supports at the openend of its outer edge by shell (20); Magnetic circuit (14), this magnetic circuit (14) comprise yoke (15), magnet (16) and the top board (17) that forms magnetic flux in response to the ac current signal that is applied to described coil (11); And leaf spring (18), this leaf spring (18) is used for resiliency supported magnetic circuit (14) in described shell (20), so that the vibration output sound by described vibrating membrane (12), and the generation of vibration vibration force by magnetic circuit (14), described electroacoustic transducer (10) also comprises supporting member (13) and annular support protrusion (13a), described supporting member (13) is anchored on a surface of described vibrating membrane (12) and to prevent described vibrating membrane (12) external force extrasensitivity ground is reacted, described annular support protrusion (13a) is arranged on the central part of the first surface of described supporting member (13), is used for described coil (11) is remained on the tram.
10. electroacoustic transducer according to claim 9, wherein, described supporting member (13) comprises the thin plate spring that is made of metal, and have following structure: center rim (13b) and outer rim (13c) form respectively central part and the outside of described supporting member (13), and described center rim (13b) and described outer rim (13c) are bonded to each other integratedly by elastic rib (13d).
11. electroacoustic transducer according to claim 9, wherein, described supporting member (13) adheres to the planar section of the periphery of the planar section of periphery of central dome part of described vibrating membrane (12) and described vibrating membrane (12).
12. electroacoustic transducer according to claim 9, wherein, described supporting member (13) adheres to the whole zone of described vibrating membrane (12).
13. electroacoustic transducer according to claim 9, wherein, described supporting member (13) is made by the metal sheet that substitutes described vibrating membrane (12).
14. electroacoustic transducer according to claim 9, wherein, the yoke (15) of described magnetic circuit (14) has comprised that the heart therein has the plate of opening.
15. electroacoustic transducer according to claim 9, wherein, in at least one that from the central part of the yoke (15) of magnetic circuit (14) and circumferential outer edge, select projection is set, the height of described projection is identical with the height of described magnet (16) and described top board (17), so that limit the gap by described yoke (15), described magnet (16) and described top board (17).
16. electroacoustic transducer according to claim 9, wherein, the magnet (16) of described magnetic circuit (14) comprising: the first magnetic body, and this first magnetic body is arranged on the central part of described yoke (15), and described the first magnetic body has circular block; And second magnetic body, this second magnetic body with the position ring of described the first magnetic body interval preset distance around described the first magnetic body, described the second magnetic body is annular.
17. electroacoustic transducer according to claim 9, wherein, the magnet (16) of described magnetic circuit (14) has a kind of shape of selecting from circular and annular, and is installed on the described yoke (15).
18. electroacoustic transducer according to claim 9, wherein, described leaf spring (18) comprising: fastening edge (18a), this fastening edge (18a) use rivet pin (19) to be anchored on the central part of described shell (20) inner surface; Support edge (18b), this support edge (18b) are used for keeping and supporting described magnetic circuit (14); And elastomeric element (18c), this elastomeric element (18c) is flat shape and is attached to described fastening edge (18a) from described fastening edge (18a) extension and with described support edge (18b), with the described magnetic circuit of resiliency supported (14).
19. electroacoustic transducer according to claim 18, wherein, described fastening edge (18a) is anchored on the central part of described shell (20) inner surface by being assembled to rivet pin (19) in the described fastening edge (18a).
20. electroacoustic transducer according to claim 18, wherein, described support edge (18b) covers and keeps comprising the circumferential exterior surface of the lamination main body of described yoke (15), described magnet (16) and described top board (17).
21. electroacoustic transducer according to claim 18, wherein, described elastomeric element (18c) be after the part on surface between excision described fastening edge (18a) and described support edge (18b) between described fastening edge (18a) and described support edge (18b) surperficial remainder, the area of the part that is cut is greater than the area of described remainder, and described elastomeric element (18c) has spiral-shaped.
22. electroacoustic transducer according to claim 18, wherein, described elastomeric element (18c) tilts at a predetermined angle, so that described support edge (18b) is arranged than described fastening edge (18a) height.
23. electroacoustic transducer according to claim 9, wherein, the resonance frequency vibration of described vibrating membrane (12) take scope as 300Hz to 20KHz.
24. electroacoustic transducer according to claim 9, wherein, described vibrating membrane (12) is with the resonance frequency vibration of 300Hz.
25. electroacoustic transducer according to claim 9, wherein, the resonance frequency vibration of described magnetic circuit (14) take scope as 100Hz to 200Hz.
26. electroacoustic transducer according to claim 9, wherein, described magnetic circuit (14) is with the resonance frequency vibration of 175Hz.
27. electroacoustic transducer according to claim 9, wherein, in described magnet (16) and the described top board (17) each the therein heart has opening, and the end of rivet pin (19) is assembled in the central part of described shell (20) inner surface and extends through described yoke (15), described magnet (16) and described top board (17), wherein, in the described end of described rivet pin (19) brake component (19a) is set, is used for preventing that the resilient actuating that supports the described leaf spring (18) of described magnetic circuit (14) from surpassing elastic limit.
28. according to claim 9 with 27 in each described electroacoustic transducer, wherein, the circumferential exterior surface extension of described leaf spring (18) also covers the circumferential exterior surface that is contained in the described magnetic circuit (14) on the described leaf spring (18), wherein, the extending edge of crooked described leaf spring (18) is with compression and keep described magnetic circuit (14).
29. according to claim 9 with 27 in each described electroacoustic transducer, wherein, the second surface of the central part of the first surface of described leaf spring (13) and described leaf spring (13) outer peripheral each local support projection (13f) is set, this local support projection (13f) forms dotted line shape, and wherein, in the position corresponding with described local support projection (13f), in the described coil (11) and described vibrating membrane (12) on being contained in corresponding described local support projection (13f), form respectively recess (11b) and (12a).
30. electroacoustic transducer, comprise: vibrating membrane (12), this vibrating membrane (12) is provided with the coil (11) of a centre of surface section that is anchored on vibrating membrane (12), and described vibrating membrane (12) supports at the openend of its outer edge by shell (20); Magnetic circuit (14), this magnetic circuit (14) comprise yoke (15), magnet (16) and the top board (17) that forms magnetic flux in response to the ac current signal that is applied to described coil (11); And leaf spring (18), this leaf spring (18) is used for resiliency supported magnetic circuit (14) in described shell (20), so that the vibration output sound by described vibrating membrane (12), and by the generation of vibration vibration force of magnetic circuit (14), wherein: the central part of described shell (20) bottom protrudes predetermined altitude; The central part of the described leaf spring (18) of lower surface level is arranged on the upper surface of the described outstanding central part bottom the described shell (20); The described outstanding central part of the described central part of described leaf spring (18) and described shell (20) is assemblied in the lower end of rivet pin, so that the described outstanding central part of the described central part of described leaf spring (18) and described shell (20) is subjected to described rivet pin compression and keeps, described rivet pin is provided with brake component (19a) in the top; Described yoke (15) is arranged on the upper surface of described leaf spring (18), and described yoke (15) the therein heart has opening and its lower surface is inclined upwardly to inward flange from its outward flange; The described magnet (16) of annular and annular described top board (17) are arranged on the central part and periphery of upper surface of described yoke (15), so that define the gap in described magnet (16) and described top board (17), described coil (11) is arranged in the described gap; The circumferential extension outer surface of described leaf spring (18) had not only covered the circumferential exterior surface of described yoke (15) but also had covered the described magnet (16) that is arranged in described yoke (15) periphery and the circumferential exterior surface of described top board (17), and bend on the upper surface of described top board (17), with compression with keep described yoke (15), described magnet (16) and described top board (17); And the inner surface at described shell (20) openend is equipped with supporting member (13), circumferential outer edge at the first surface of described supporting member (13) has annular support protrusion (13e), described annular support protrusion (13e) keeps described vibrating membrane (12) and is supported in the tram, second surface at described supporting member (13) arranges annular support protrusion (13a), and described annular support protrusion (13a) keeps described coil (11) and is supported in the tram.
31. according to claim 9, each the described electroacoustic transducer in 27 and 30, wherein, described shell (20) comprises headset main body.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070137772 | 2007-12-26 | ||
| KR1020070137772A KR100824436B1 (en) | 2007-12-26 | 2007-12-26 | Diaphragm of the electronic sounder and the electronic sound which has the diaphragm |
| KR10-2007-0137772 | 2007-12-26 | ||
| PCT/KR2008/001610 WO2009082060A1 (en) | 2007-12-26 | 2008-03-21 | Diaphragm of the electronic sounder and the electronic sound which has the diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101606396A CN101606396A (en) | 2009-12-16 |
| CN101606396B true CN101606396B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880004862.4A Expired - Fee Related CN101606396B (en) | 2007-12-26 | 2008-03-21 | Diaphragm of the electronic sounder and the electronic sound which has the diaphragm |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100824436B1 (en) |
| CN (1) | CN101606396B (en) |
| WO (1) | WO2009082060A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100894656B1 (en) * | 2008-05-01 | 2009-04-24 | 주식회사 예일전자 | Sensory signal output apparatus |
| CN104410944A (en) * | 2008-05-01 | 2015-03-11 | 株式会社礼一电子 | Sensory signal output apparatus |
| KR100878249B1 (en) * | 2008-05-01 | 2009-01-12 | 주식회사 예일전자 | Sensory signal output apparatus |
| KR100967409B1 (en) * | 2008-07-11 | 2010-07-01 | 주식회사 예일전자 | Sensory signal output apparatus |
| KR101042032B1 (en) | 2009-03-11 | 2011-06-16 | 주식회사 비에스이 | Micro-speaker |
| AU2010260059B2 (en) * | 2009-06-16 | 2015-06-11 | Baker Hughes Incorporated | Self-stabilizing dynamic diaphragm for broad bandwidth acoustic energy source |
| CN102240226B (en) | 2010-05-13 | 2014-04-09 | 深圳市理邦精密仪器股份有限公司 | Patient monitoring device with recreation function and control method thereof |
| KR101133415B1 (en) * | 2010-05-14 | 2012-04-09 | 삼성전기주식회사 | A linear vibrator |
| KR101439914B1 (en) | 2013-02-22 | 2014-09-15 | 주식회사 이엠텍 | One magnet type microspeaker |
| DE102013210708B4 (en) * | 2013-06-07 | 2015-01-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Belleville spring transducers |
| KR101467500B1 (en) * | 2013-08-21 | 2014-12-01 | 주식회사 예일전자 | Sensory signal output apparatus |
| KR101570366B1 (en) | 2014-03-10 | 2015-11-19 | 주식회사 예일전자 | Sensory signal output apparatus |
| US10257614B2 (en) * | 2014-07-29 | 2019-04-09 | Yeil Electronics Co., Ltd. | Sensory signal output apparatus |
| CN110198510B (en) * | 2018-02-26 | 2022-04-15 | 歌尔股份有限公司 | Sound generator |
| KR101948826B1 (en) * | 2018-04-26 | 2019-05-02 | 박래범 | Diaphragm |
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| EP0066713A1 (en) * | 1981-06-04 | 1982-12-15 | Polaroid Corporation | An electroacoustical transducer and a method for assembling same |
| CN2626168Y (en) * | 2003-03-28 | 2004-07-14 | 浙江新嘉联电子股份有限公司 | Doublefaced moving-coil type electroacoustic convertor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200171642Y1 (en) | 1997-07-02 | 2000-03-02 | 김충지 | A diaphragm for speaker |
| KR20000008356U (en) * | 1998-10-20 | 2000-05-15 | 허훈 | Diaphragm coupling structure of dynamic speaker |
| JP2002135888A (en) | 2000-10-23 | 2002-05-10 | Pioneer Electronic Corp | Diaphragm for speaker |
| JP2003333690A (en) * | 2002-05-10 | 2003-11-21 | Matsushita Electric Ind Co Ltd | Loudspeaker |
| KR100419915B1 (en) * | 2002-08-30 | 2004-02-25 | 주식회사 진영음향 | Dynamic micro speaker with dual suspension |
| KR100558452B1 (en) | 2004-01-19 | 2006-03-10 | 삼성전기주식회사 | A device for generating the sound |
-
2007
- 2007-12-26 KR KR1020070137772A patent/KR100824436B1/en active IP Right Grant
-
2008
- 2008-03-21 CN CN200880004862.4A patent/CN101606396B/en not_active Expired - Fee Related
- 2008-03-21 WO PCT/KR2008/001610 patent/WO2009082060A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0066713A1 (en) * | 1981-06-04 | 1982-12-15 | Polaroid Corporation | An electroacoustical transducer and a method for assembling same |
| CN2626168Y (en) * | 2003-03-28 | 2004-07-14 | 浙江新嘉联电子股份有限公司 | Doublefaced moving-coil type electroacoustic convertor |
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| Title |
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| JP特开2002-135888A 2002.05.10 |
| JP特开2003-333690A 2003.11.21 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100824436B1 (en) | 2008-04-23 |
| CN101606396A (en) | 2009-12-16 |
| WO2009082060A1 (en) | 2009-07-02 |
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