CN102036151B - Electro-acoustic transducer - Google Patents
Electro-acoustic transducer Download PDFInfo
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- CN102036151B CN102036151B CN 200910178810 CN200910178810A CN102036151B CN 102036151 B CN102036151 B CN 102036151B CN 200910178810 CN200910178810 CN 200910178810 CN 200910178810 A CN200910178810 A CN 200910178810A CN 102036151 B CN102036151 B CN 102036151B
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Abstract
The invention relates to an electro-acoustic transducer. The electro-acoustic transducer comprises a shell, a voice coil, a vibration diaphragm and a magnetic driving device, wherein one end of the shell is provided with a ventilation hole and the other end of the shell is provided with a voice outlet hole; the voice coil is arranged in the shell; the vibration diaphragm is combined with the top end of the voice coil and can be interlinked along with the voice coil; the magnetic driving device is used for driving the voice coil to vibrate, and comprises at least one magnetic piece and provided with a combining region and a damping region; and the combining region is buried in a part of the shell, and the damping region is formed on a path from the vibration diaphragm to the ventilation hole so as to adjust voice outlet air volume of the ventilation hole.
Description
Technical field
The present invention relates to a kind of electroacoustic transducer, particularly relate to a kind of existing member that utilizes electroacoustic transducer, in order to being embedded in housing, and as the electroacoustic transducer of tuning structure.
Background technology
Continuous variation along with the market demand, the development of various electronic products is more quick, wherein loud speaker is the important spare part of the sound output of electronic product, for the requirement of loud speaker also towards the design of the directions such as microminiaturization, high tone quality, low cost, to meeting the demand on market.
See also Fig. 1, it is a kind of exploded perspective schematic diagram of existing loud speaker.As shown in Figure 1, loud speaker 1 includes lower 16 and a tuning net 17 of a housing 10, a upper cover 11, a vibrating membrane 12, a voice coil loudspeaker voice coil 13, a pole piece 14, a magnet 15, a recess.
When voice coil loudspeaker voice coil 13 conducting, by pole piece 14, magnet 15 and lower 16 magnetism drive circuit voice coil loudspeaker voice coil 13 that consists of and then drive vibrating membrane 12 and produce vibration, and sounded by sender 11a and air vent hole 10b.
See also Fig. 2, it is the cutaway view that has loud speaker now shown in Figure 1.Loud speaker 1 is pasted tuning net 17 on the position of the air vent hole 10b of housing 10 bottoms, make tuning net 17 cover sender 10b, therefore on tuning net 17, less hollow out has partly formed the new tunnel of sound, and the sound that sends in order to adjust loud speaker 1 promotes the acoustical behavior of loud speaker 1.
yet loud speaker 1 is in assembling process, also need just can obtain better acoustical behavior by the technique of pasting tuning net 17, thereby make assembly cost effectively to reduce, cause the restriction of inter-industry competition, use simultaneously tuning net 17 to be used as the sound dampening of loud speaker 1, except the height of tuning net 17 own, if used excessive viscose, it is easy to cause the whole height of loud speaker 1 to increase, be unfavorable for the loud speaker miniaturized design, moreover, when pasting tuning net 17 on the air vent hole 10b of housing 10, have that to produce viscose excessive and block the possibility of the mesh of part, what it will greatly affect loud speaker 1 goes out audio fruit.
In addition, lower 16 when housing 10 ejection formation, lower 16 installing hole 10a that is embedded in housing 10, it is one-body molded with housing 10 to make lower 16, yet lower 16 edge wall thickness are excessively thin, what make 10 of lower 16 and housings is not firm in conjunction with effect, when loud speaker 1 bottom pressurized, easily cause loosening between internal structure, make the acoustical behavior of loud speaker 1 produce variation, reduce the quality of loud speaker 1, therefore, above-mentioned known loud speaker 1 still has shortcoming, has the space of improving.
Summary of the invention
The object of the invention is to, overcome the defective that existing electroacoustic transducer exists, and a kind of electroacoustic transducer of new structure is provided, technical problem to be solved is to make it can omit tuning net member commonly used and paste technique, and then reaches the effect that reduces costs with stabilized structure.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of electroacoustic transducer that the present invention proposes, it comprises: a housing, and the one end has an air vent hole, and the other end has a sender; One voice coil loudspeaker voice coil is arranged in this housing; One vibrating membrane is combined in this voice coil loudspeaker voice coil top and with its interlock; An and magnetic drive apparatus, in order to drive this voice coil loudspeaker voice coil vibration, this magnetic drive apparatus comprises at least one magnetic conductive part, it has a land and a damping district, this land is embedded in the some of this housing, and this damping district is arranged on this vibrating diaphragm to the path of this air vent hole, use adjust this air vent hole go out sound tolerance.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid electroacoustic transducer, wherein said magnetic drive apparatus comprises that one first magnetic conductive part, one second magnetic conductive part and are arranged at the magnet between this first magnetic conductive part and this second magnetic conductive part, this land and this damping district are formed on this first magnetic conductive part, and this land and this damping district all are provided with a plurality of perforation.
Aforesaid electroacoustic transducer, this air vent hole is covered in the damping district of wherein said the first magnetic conductive part, and the aperture of these a plurality of perforation is less than this air vent hole.
Aforesaid electroacoustic transducer, wherein said the first magnetic conductive part has a holding part, and this holding part edge has an alar part, and these a plurality of perforation are arranged on this alar part.
Aforesaid electroacoustic transducer, wherein said housing comprises a base, this air vent hole is arranged on this base, and has an installing hole in the edge of this air vent hole, uses the holding part installing for this first magnetic conductive part.
Aforesaid electroacoustic transducer, wherein said magnet are arranged in this holding part of this first magnetic conductive part, and keep a determining deviation with this holding part, in order to outstanding this voice coil loudspeaker voice coil of establishing.
Aforesaid electroacoustic transducer, wherein said housing comprises a upper cover, in order in conjunction with being fixed on this base top.
Aforesaid electroacoustic transducer, wherein said magnetic drive apparatus includes one first magnetic conductive part, one second magnetic conductive part and is arranged at the magnet between this first magnetic conductive part and this second magnetic conductive part, this land and this damping district are formed on this second magnetic conductive part, and this land and this damping district all are provided with a plurality of perforation.
Aforesaid electroacoustic transducer, this air vent hole is covered in the damping district of wherein said the second magnetic conductive part, and the aperture of these a plurality of perforation is less than this air vent hole.
Aforesaid electroacoustic transducer, wherein said the first magnetic conductive part has a column, and this magnet ring is located at this column edge of this first magnetic conductive part.
Aforesaid electroacoustic transducer, wherein said housing has a base, and this base has an installing hole with accommodating this first magnetic conductive part.
Aforesaid electroacoustic transducer, wherein said the second magnetic conductive part separately comprise a combined hole to provide this voice coil loudspeaker voice coil to wear, and make this voice coil loudspeaker voice coil be suspended at edge between this magnet and this column.
Aforesaid electroacoustic transducer, wherein said housing comprises a upper cover, in order in conjunction with being fixed on this base top.
The object of the invention to solve the technical problems also realizes by the following technical solutions.According to a kind of electroacoustic transducer that the present invention proposes, it comprises: a housing, and the one end has an air vent hole, and the other end has a sender; One voice coil loudspeaker voice coil is arranged in this housing; One vibrating membrane is incorporated into this voice coil loudspeaker voice coil top and can be with its interlock; One magnetic drive apparatus is located in this housing, in order to drive this voice coil loudspeaker voice coil; And pair of terminal, difference tool one fixed part and a movable part, this movable part is in order to be electrically connected on an external electrical product, this fixed part has a land and a damping district, this land is embedded in a part of of this housing and is electrically connected this voice coil loudspeaker voice coil, this damping district is arranged on this vibrating diaphragm to the path of this air vent hole, use adjust this air vent hole go out the sound volume.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid electroacoustic transducer, wherein said magnetic drive apparatus are the magnetism loop of internal magnetization.
Aforesaid electroacoustic transducer, wherein said magnetic drive apparatus are the magnetism loop of external magnetic type.
Aforesaid electroacoustic transducer, wherein said magnetic drive apparatus include one first magnetic conductive part, one second magnetic conductive part and is arranged at the magnet between this first magnetic conductive part and this second magnetic conductive part.
Aforesaid electroacoustic transducer, the fixed part of wherein said two-terminal has a plurality of perforation, and the aperture of these a plurality of perforation is less than this air vent hole.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, electroacoustic transducer of the present invention has following advantages and beneficial effect at least:
One, electroacoustic transducer of the present invention utilizes magnetic drive apparatus in order to drive the voice coil loudspeaker voice coil vibration, and magnetic drive apparatus has land and damping district, and the land is embedded in the some of housing, and the damping district is arranged on vibrating diaphragm to the path of air vent hole, thus adjust air vent hole go out sound tolerance.Therefore, the technique that electroacoustic transducer of the present invention need not use existing tuning net member and paste, thus avoid when pasting the tuning net, the viscose that the produces problem of blocking mesh, and complicated assembling procedure, reduce cost and avoided acoustical behavior to be affected.
two, the magnetic drive apparatus of electroacoustic transducer of the present invention is provided with a plurality of perforation in land and damping district, and may be implemented on the magnetic conductive part of magnetic drive apparatus of internal magnetization or external magnetic type, so that magnetic drive apparatus closely is embedded in the housing of electroacoustic transducer, and the air vent hole of the damping district shielding casing of magnetic drive apparatus, the sound that sends in order to adjust electroacoustic transducer, and then improve the acoustical behavior of electroacoustic transducer, therefore, make the effect of magnetic drive apparatus tool tuning, and utilize a plurality of perforation and housing on the land of magnetic drive apparatus to bury underground, can obtain better for effect, avoided the electroacoustic transducer internal structure to be subject to external force, and the generation connection loosing, cause the affected problem of acoustical behavior.
In addition, electroacoustic transducer of the present invention also can arrange a plurality of perforation and differentiation on the fixed part on pair of terminal have land and damping district, the damping district is used for the air vent hole of shielding casing to reach the function that adjusts sound tolerance, and the land is when being used for making the fixed part of terminal and electroacoustic transducer to bury underground, terminal can closely be embedded in electroacoustic transducer, and can improve the acoustical behavior of electroacoustic transducer.
In sum, the present invention can omit existing tuning net member and paste technique, and then reaches the effect that reduces costs with stabilized structure.The present invention has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is the exploded perspective schematic diagram of existing loud speaker.
Fig. 2 is the cutaway view of existing loud speaker.
Fig. 3 is the exploded perspective schematic diagram of electroacoustic transducer the first embodiment of the present invention.
Fig. 4 is the cutaway view of electroacoustic transducer the first embodiment of the present invention.
Fig. 5 is the schematic perspective view of electroacoustic transducer the first embodiment of the present invention.
Fig. 6 is the exploded perspective schematic diagram of electroacoustic transducer the second embodiment of the present invention.
Fig. 7 is the cutaway view of electroacoustic transducer the second embodiment of the present invention.
Fig. 8 is the schematic perspective view of electroacoustic transducer the 3rd embodiment of the present invention.
Fig. 9 is the exploded perspective schematic diagram of electroacoustic transducer the 3rd embodiment of the present invention.
Figure 10 is the cutaway view along the A-A line of Fig. 8.
Figure 11 is the stereogram of electroacoustic transducer the 3rd embodiment of the present invention.
1: loud speaker 10: housing
10a: installing hole 10b: air vent hole
11: upper cover 11a: sender
12: vibrating membrane 13: voice coil loudspeaker voice coil
14: pole piece 15: magnet
16: lower sheet 17: tuning net
2: electroacoustic transducer 20: housing
201: base 201a: installing hole
201b: air vent hole 202: upper cover
202a: sender 21: vibrating membrane
22: voice coil loudspeaker voice coil 23: magnetic drive apparatus
Magnetic conductive part 241 in 24: the first: holding part
242: alar part 243: perforation
25: 26: the second magnetic conductive parts of magnet
3: electroacoustic transducer 30: housing
301: base 301a: installing hole
301b: air vent hole 301c: stopper
302: upper cover 302a: sender
31: vibrating membrane 32: voice coil loudspeaker voice coil
33: 34: the first magnetic conductive parts of magnetic drive apparatus
341: column 342: section of class
35: 36: the second magnetic conductive parts of magnet
361: combined hole 362: perforation
4: electroacoustic transducer 40: housing
401: base 401a: installing hole
401b: air vent hole 402: upper cover
402a: sender 41: vibrating membrane
42: voice coil loudspeaker voice coil 43: magnetic drive apparatus
Magnetic conductive part 45 in 44: the first: magnet
Magnetic conductive part 5 in 46: the second: terminal
51: fixed part 52: perforation
53: turning point 54: movable part
Embodiment
Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of electroacoustic transducer, structure, step, feature and effect thereof to foundation the present invention proposes are described in detail as follows.
See also Fig. 3, it is for the exploded perspective schematic diagram of electroacoustic transducer the first embodiment of the present invention.As shown in Figure 3, electroacoustic transducer 2 includes a housing 20, a vibrating membrane 21, a voice coil loudspeaker voice coil 22 and a magnetic drive apparatus 23.
Above-mentioned housing 20 is to be made by plastic cement, and is made of a base 201 and a upper cover 202, and base 201 has an installing hole 201a in the central, and the edge of installing hole 201a is provided with an air vent hole 201b.202 tops that are incorporated into base 201 of upper cover, and be provided with a plurality of sender 202a.
Above-mentioned magnetic drive apparatus 23 is comprised of one first magnetic conductive part 24, a magnet 25 and one second magnetic conductive part 26.The first magnetic conductive part 24 has the holding part 241 of a recess and is contained in the installing hole 201a of base 201, and the edge of holding part 241 is provided with an alar part 242, have a plurality of perforation 243 on alar part 242 and distinguish a damping district and a land are arranged, the damping district is in order to cover air vent hole 201b, bury with base 201 edges the land, wherein the land is the part of not covering air vent hole 201b, the plastics of shaping base 201 are inserted in a plurality of perforation 243 of land, so that form firm combination between the first magnetic conductive part 26 and base 201.
This magnet 25 installs in the holding part 241 of the first magnetic conductive part 24, and keeps determining deviations with holding part 241 wall edge.
This second magnetic conductive part 26 is arranged at the top of magnet 25, makes the first magnetic conductive part 24, the second magnetic conductive part 26 and magnet 25 consist of the magnetic drive apparatus of an internal magnetization.
Above-mentioned voice coil loudspeaker voice coil 22 is hung on the edge between the first magnetic conductive part 24, the second magnetic conductive part 26 and magnet 25, and is subjected to magnetic drive apparatus 23 effect and drives.
The bottom of above-mentioned vibrating membrane 21 is combined in voice coil loudspeaker voice coil 22 tops, and can make vibrating membrane 21 with voice coil loudspeaker voice coil 22 interlock.
This upper cover 202 keeps certain distance with vibrating membrane 21, in order to cover and to protect vibrating membrane 21.
When voice coil loudspeaker voice coil 22 was subjected to current lead-through, the magnetic field that voice coil loudspeaker voice coil 22 and magnetic drive apparatus 23 produce produces magnetic or magnetic is scolded effect and vibrates, and then drive vibrating membrane 21 and produce vibration, produces sound in order to promote ambient air, and sound from sender 202a.
See also shown in Figure 4ly, it is for the cutaway view of electroacoustic transducer the first embodiment of the present invention.as shown in Figure 4, air vent hole 201b has been covered in the damping district of the alar part 242 of the first magnetic conductive part 24 of electroacoustic transducer 2, bury with base 201 edges the land, the part that alar part 242 and base 201 edges bury is by the design of a plurality of perforation 243, the filling plastic space is provided, make alar part 242 be able to closely be coated by the moulding plastics of base 201, not only horizontal, vertically all can be limited securely, thus, binding ability between base 201 and the first magnetic conductive part 24 effectively promotes, and first magnetic conductive part 24 that can make electroacoustic transducer 2 is firmly inlayed the bottom that is embedded in base 201, break away from base 201 in order to the restricted internal member, when electroacoustic transducer 2 bottom pressurized, inlay in large area and be embedded in base 201 because the first magnetic conductive part 24 is subject to alar part 242, and local perforation 243 is filled with the impact of the moulding plastics of base 201, make the first magnetic conductive part 24 not be subject to the external force impact, also avoid the loosening of electroacoustic transducer 2 internal structures, thereby reduced the possibility that electroacoustic transducer 2 acoustical behavioies descend.
See also shown in Figure 5ly, it is for the schematic perspective view of electroacoustic transducer the first embodiment of the present invention.As shown in Figure 5, the alar part 242 of the first magnetic conductive part 24 has a plurality of perforation 243, and air vent hole 201b is covered in the damping district of alar part 242, when sounding when electroacoustic transducer 2 actions, utilize perforation 243 apertures on alar part 242 less than the feature of air vent hole 201b, make a plurality of perforation 243 form the new tunnel of sound, so that sound is discharged, therefore can adjust the sound tolerance that electroacoustic transducer 2 sends, and then obtain better acoustical behavior.
The present invention utilizes the land edge of the first magnetic conductive part 24 to be embedded in base 201, and the damping district of the first magnetic conductive part 24 is as the tuning structure of air vent hole 201b, therefore need not impose the technique of pasting the tuning net in electroacoustic transducer 2 assembling process, and also excessive without viscose and block the situation of mesh, the acoustical behavior that can guarantee electroacoustic transducer 2 is unaffected, and simultaneously with simple structure, the effect that assembly cost reduces.
See also shown in Figure 6ly, it is the exploded perspective schematic diagram of the second embodiment of electroacoustic transducer of the present invention.As shown in Figure 6, the electroacoustic transducer 3 of the present embodiment includes a housing 30, a vibrating membrane 31, a voice coil loudspeaker voice coil 32 and a magnetic drive apparatus 33.
Above-mentioned housing 30 is to be made by plastic cement, and housing 30 comprises a base 301 and a upper cover 302, and base 301 has an installing hole 301a in central authorities, and installing hole 301a both sides respectively are provided with an air vent hole 301b, and wherein installing hole 301a root edge is equipped with a stopper 301c.
Above-mentioned magnetic drive apparatus 33 is comprised of one first magnetic conductive part 34, a magnet 35 and one second magnetic conductive part 36.The first magnetic conductive part 34 is an inverted T shape shape, and central authorities have a column 341, the first magnetic conductive part 34 edge ring are provided with a section of class 342, so that the first magnetic conductive part 34 is when being installed in the installing hole 301a of base 301, section of class 342 is connected to stopper 301c, and be subjected to stopper 301c backstop spacing, the first magnetic conductive part 34 can't be deviate from from base 301 another ends.
This magnet 35 is a ring-type being nested with on the column 341 of the first magnetic conductive part 34, and the inner edge of magnet 35 and column 341 keep determining deviations.
This second magnetic conductive part 36 is arranged on the top of magnet 35, makes the first magnetic conductive part 34, the second magnetic conductive part 36 and magnet 35 consist of the magnetic drive apparatus 33 of an external magnetic type.the second magnetic conductive part 36 has a combined hole 361, so that the column 341 of the first magnetic conductive part 34 passes through, the second magnetic conductive part 36 is provided with a plurality of perforation 362 and distinguishes at combined hole 361 edges have a land and a damping district, the second magnetic conductive part 36 is when base 301 ejection formation, edge is embedded in base 301, and be integrally formed with base 301, wherein, air vent hole 301b is covered in the damping district of the second magnetic conductive part 36, make a plurality of perforation 362 and air vent hole 301b contraposition, bury with base 301 edges the land of not covering air vent hole 301b, provide the plastics of shaping base 301 to insert in a plurality of perforation 362, so that form better combination between the second magnetic conductive part 36 and base 301.
Above-mentioned voice coil loudspeaker voice coil 32 is hung on the edge between the first magnetic conductive part 34, the second magnetic conductive part 36 and magnet 35, and driven by magnetic drive apparatus 33.
Above-mentioned vibrating membrane 31 bottoms are incorporated into voice coil loudspeaker voice coil 32 tops, and vibrating membrane 31 is interlock with voice coil loudspeaker voice coil 32.
This upper cover 302 has a plurality of sender 302a, and upper cover 302 is in conjunction with being fixed on base 301 top edge places, and keeps certain distances with vibrating membrane 31, in order to cover and to protect vibrating membrane 31.
See also shown in Figure 7ly, it is the cutaway view of the second embodiment of electroacoustic transducer of the present invention.As shown in Figure 7, air vent hole 301b is covered in the damping district of the second magnetic conductive part 36 of electroacoustic transducer 3, bury with base 301 edges the land, and utilize a plurality of perforation 362 of the second magnetic conductive part 36 as the packing space of plastics, make the binding ability between base 301 and the second magnetic conductive part 36 quite firm, can make electroacoustic transducer 3 not be subject to external force and cause electroacoustic transducer 3 internal structures loosening, and must avoid the acoustical behavior of electroacoustic transducer 3 to change.
Moreover, when electroacoustic transducer 3 conductings and during sounding, a plurality of perforation 362 and air vent hole 301b contraposition because of the damping district of the second magnetic conductive part 36, be able to use as the tuning of air vent hole 301b, the tuning net that so electroacoustic transducer 3 need not be extra sticks in base 301, thereby has a simple structure, the effect that assembly cost reduces.
See also Fig. 8 and Fig. 9, wherein Fig. 8 is the schematic perspective view of the 3rd embodiment of electroacoustic transducer of the present invention, and Fig. 9 is the exploded perspective schematic diagram of the 3rd embodiment of electroacoustic transducer of the present invention.As shown in Figure 8, the bottom of electroacoustic transducer 4 has a pair of flexible terminal 5, in order to electroacoustic transducer 4 is electrically connected on electronic product.As shown in Figure 9, electroacoustic transducer 4 includes a housing 40, a vibrating membrane 41, a voice coil loudspeaker voice coil 42, a magnetic drive apparatus 43 and pair of terminal 5.
Above-mentioned housing 40 is to be made by plastic cement, and housing 40 is comprised of a base 401, a upper cover 402, and has an installing hole 401a in base 401 central authorities, and installing hole 401a edge is provided with an air vent hole 401b.
Above-mentioned magnetic drive apparatus 43 is made of one first magnetic conductive part 44, a magnet 45 and one second magnetic conductive part 46, and magnetic drive apparatus 43 is placed in the installing hole 401a of base 401, wherein in the present embodiment magnetic drive apparatus 43 is internal magnetization, also can be embodied as external magnetic type.
Above-mentioned voice coil loudspeaker voice coil 42 is hung on the edge between the first magnetic conductive part 44, the second magnetic conductive part 46 and magnet 45, and driven by magnetic drive apparatus 43.
Above-mentioned moving film 41 bottoms are combined in the top of voice coil loudspeaker voice coil 42, and vibrating membrane 41 is interlock with voice coil loudspeaker voice coil 42.
This upper cover 402 has a sender 402a, and upper cover 402 is in conjunction with the top that is fixed on base 401, and keeps certain distance with vibrating membrane 41, in order to cover and to protect vibrating membrane 41.
Above-mentioned terminal 5 has a fixed part 51 and a movable part 54, being provided with a turning point 53 between fixed part 51 and movable part 54 is connected, make movable part 54 fixed part 51 beats relatively, and fixed part 51 has a plurality of perforation 52 and distinguish a land and a damping district are arranged, wherein, air vent hole 401b is covered in the damping district of fixed part 51, bury with base 401 edges the land of not covering air vent hole 401b, provide the plastics of shaping base 401 to insert in a plurality of perforation 52, so that form firm combination between terminal 5 and base 401.
See also shown in Figure 10ly, it is the cutaway view along the A-A line of Fig. 8.As shown in figure 10, the air vent hole 401b of base 401 is covered in the damping district of the fixed part 51 of terminal 5, bury with base 401 edges the land, and utilize a plurality of perforation 52 as the packing space of plastics, make the binding ability between base 401 and terminal 5 quite firm, can make terminal 5 firmly be incorporated into electroacoustic transducer 4 and difficult drop-off, avoid electroacoustic transducer 4 reduce or lost efficacy with the effect that is electrically connected to of electronic product.
See also Figure 11, it is the schematic perspective view figure of the 3rd embodiment of electroacoustic transducer of the present invention.As shown in figure 11, when electroacoustic transducer 4 conductings and during sounding, a plurality of perforation 52 and air vent hole 401b contraposition because of the damping district of fixed part 51, be able to use as the tuning of air vent hole 401b, therefore the tuning net that electroacoustic transducer 4 need not be extra sticks in base 401, also have the identical effect of previous embodiment, simplified processing procedure, and reduce costs.
comprehensively above-mentioned, a plurality of perforation of electroacoustic transducer of the present invention, can form on the magnetic conductive part of internal magnetization or external magnetic type, or on the fixed part of terminal, so that the housing of magnetic conductive part or terminal and electroacoustic transducer is when burying underground, the air vent hole of magnetic conductive part and terminal part shielding casing, and by the aperture less than air vent hole, the aperture of a plurality of perforation, allow a plurality of perforation form the new tunnel of sound, provide the sound air-flow to discharge by this, so can adjust the sound that electroacoustic transducer sends, and then obtain better acoustical behavior, therefore electroacoustic transducer of the present invention can be exempted when pasting known tuning net, the problem that the viscose that produces easily blocks mesh, and the complicated procedures of forming of exempting assembling tuning net, therefore the present invention can reduce costs and avoid acoustical behavior to be affected.
In addition, magnetic conductive part of the present invention or terminal closely are embedded in the housing of electroacoustic transducer, and plastics are inserted in the part perforation, make magnetic conductive part or terminal and housing bury underground, can obtain better for effect, avoid the electroacoustic transducer internal structure to be subject to connection loosing that external force produces, and then caused the affected problem of acoustical behavior.
the above, it is only preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet be not to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (18)
1. electroacoustic transducer is characterized in that it comprises:
One housing, the one end has an air vent hole, and the other end has a sender;
One voice coil loudspeaker voice coil is arranged in this housing;
One vibrating membrane is combined in this voice coil loudspeaker voice coil top and with its interlock; And
One magnetic drive apparatus, in order to drive this voice coil loudspeaker voice coil vibration, this magnetic drive apparatus comprises at least one magnetic conductive part, it has a land and a damping district, this land is embedded in the some of this housing, and this damping district is arranged on this vibrating diaphragm to the path of this air vent hole, use adjust this air vent hole go out sound tolerance.
2. electroacoustic transducer according to claim 1, it is characterized in that wherein said magnetic drive apparatus comprises that one first magnetic conductive part, one second magnetic conductive part and are arranged at the magnet between this first magnetic conductive part and this second magnetic conductive part, this land and this damping district are formed on this first magnetic conductive part, and this land and this damping district all are provided with a plurality of perforation.
3. electroacoustic transducer according to claim 2 it is characterized in that this air vent hole is covered in the damping district of wherein said the first magnetic conductive part, and the aperture of these a plurality of perforation is less than this air vent hole.
4. electroacoustic transducer according to claim 2, is characterized in that wherein said the first magnetic conductive part has a holding part, and this holding part edge has an alar part, and these a plurality of perforation are arranged on this alar part.
5. electroacoustic transducer according to claim 4, is characterized in that wherein said housing comprises a base, and this air vent hole is arranged on this base, and has an installing hole in the edge of this air vent hole, uses the holding part installing for this first magnetic conductive part.
6. electroacoustic transducer according to claim 4, is characterized in that wherein said magnet is arranged in this holding part of this first magnetic conductive part, and keep a determining deviation with this holding part, in order to outstanding this voice coil loudspeaker voice coil of establishing.
7. electroacoustic transducer according to claim 5, is characterized in that wherein said housing comprises a upper cover, in order in conjunction with being fixed on this base top.
8. electroacoustic transducer according to claim 1, it is characterized in that wherein said magnetic drive apparatus includes one first magnetic conductive part, one second magnetic conductive part and is arranged at the magnet between this first magnetic conductive part and this second magnetic conductive part, this land and this damping district are formed on this second magnetic conductive part, and this land and this damping district all are provided with a plurality of perforation.
9. electroacoustic transducer according to claim 8 it is characterized in that this air vent hole is covered in the damping district of wherein said the second magnetic conductive part, and the aperture of these a plurality of perforation is less than this air vent hole.
10. electroacoustic transducer according to claim 8, is characterized in that wherein said the first magnetic conductive part has a column, and this magnet ring is located at this column edge of this first magnetic conductive part.
11. electroacoustic transducer according to claim 8 is characterized in that wherein said housing has a base, and this base has an installing hole with accommodating this first magnetic conductive part.
12. electroacoustic transducer according to claim 10 is characterized in that wherein said the second magnetic conductive part separately comprises a combined hole to provide this voice coil loudspeaker voice coil to wear, and makes this voice coil loudspeaker voice coil be suspended at edge between this magnet and this column.
13. electroacoustic transducer according to claim 11 is characterized in that wherein said housing comprises a upper cover, in order in conjunction with being fixed on this base top.
14. an electroacoustic transducer is characterized in that it comprises:
One housing, the one end has an air vent hole, and the other end has a sender;
One voice coil loudspeaker voice coil is arranged in this housing;
One vibrating membrane is incorporated into this voice coil loudspeaker voice coil top and can be with its interlock;
One magnetic drive apparatus is located in this housing, in order to drive this voice coil loudspeaker voice coil; And
Pair of terminal, difference tool one fixed part and a movable part, this movable part is in order to be electrically connected on an external electrical product, this fixed part has a land and a damping district, this land is embedded in a part of of this housing and is electrically connected this voice coil loudspeaker voice coil, this damping district is arranged on this vibrating diaphragm to the path of this air vent hole, use adjust this air vent hole go out the sound volume.
15. electroacoustic transducer according to claim 14 is characterized in that wherein said magnetic drive apparatus is the magnetism loop of internal magnetization.
16. electroacoustic transducer according to claim 14 is characterized in that wherein said magnetic drive apparatus is the magnetism loop of external magnetic type.
17. electroacoustic transducer according to claim 14 is characterized in that wherein said magnetic drive apparatus includes one first magnetic conductive part, one second magnetic conductive part and is arranged at the magnet between this first magnetic conductive part and this second magnetic conductive part.
18. electroacoustic transducer according to claim 14 is characterized in that the fixed part of wherein said two-terminal has a plurality of perforation, the aperture of these a plurality of perforation is less than this air vent hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200910178810 CN102036151B (en) | 2009-09-25 | 2009-09-25 | Electro-acoustic transducer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910178810 CN102036151B (en) | 2009-09-25 | 2009-09-25 | Electro-acoustic transducer |
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| CN102036151A CN102036151A (en) | 2011-04-27 |
| CN102036151B true CN102036151B (en) | 2013-11-06 |
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| CN 200910178810 Expired - Fee Related CN102036151B (en) | 2009-09-25 | 2009-09-25 | Electro-acoustic transducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI595789B (en) * | 2016-02-16 | 2017-08-11 | 智動全球股份有限公司 | Electro-acoustic transducer |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410945A (en) | 2014-12-02 | 2015-03-11 | 歌尔声学股份有限公司 | Micro loudspeaker |
| CN107682788B (en) * | 2017-08-31 | 2020-02-21 | 歌尔股份有限公司 | Sound production device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2882176Y (en) * | 2006-01-24 | 2007-03-21 | 美律实业股份有限公司 | Loudspeaker |
| CN200966139Y (en) * | 2006-10-08 | 2007-10-24 | 美律实业股份有限公司 | Earplug type earphone improved structure |
| CN101227767A (en) * | 2008-01-29 | 2008-07-23 | 歌尔声学股份有限公司 | Minitype moving-coil type electro-acoustic conversing device |
| CN101247673A (en) * | 2007-02-13 | 2008-08-20 | 固昌通讯股份有限公司 | Micro speaker and assembling method for micro speaker |
-
2009
- 2009-09-25 CN CN 200910178810 patent/CN102036151B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2882176Y (en) * | 2006-01-24 | 2007-03-21 | 美律实业股份有限公司 | Loudspeaker |
| CN200966139Y (en) * | 2006-10-08 | 2007-10-24 | 美律实业股份有限公司 | Earplug type earphone improved structure |
| CN101247673A (en) * | 2007-02-13 | 2008-08-20 | 固昌通讯股份有限公司 | Micro speaker and assembling method for micro speaker |
| CN101227767A (en) * | 2008-01-29 | 2008-07-23 | 歌尔声学股份有限公司 | Minitype moving-coil type electro-acoustic conversing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI595789B (en) * | 2016-02-16 | 2017-08-11 | 智動全球股份有限公司 | Electro-acoustic transducer |
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| CN102036151A (en) | 2011-04-27 |
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