WO2021056294A1 - Horn apparatus - Google Patents
Horn apparatus Download PDFInfo
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- WO2021056294A1 WO2021056294A1 PCT/CN2019/107965 CN2019107965W WO2021056294A1 WO 2021056294 A1 WO2021056294 A1 WO 2021056294A1 CN 2019107965 W CN2019107965 W CN 2019107965W WO 2021056294 A1 WO2021056294 A1 WO 2021056294A1
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- WO
- WIPO (PCT)
- Prior art keywords
- magnetic circuit
- circuit system
- electromagnet
- horn device
- drive coil
- Prior art date
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Classifications
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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
- H04R9/06—Loudspeakers
Definitions
- the present invention relates to the field of acoustics, and more specifically, to a horn device.
- the horn device is an electro-acoustic element whose function is to convert an electric signal into an acoustic signal. With the current trend of thinning, the size requirements of the horn device are also more stringent.
- the horn device in the related art includes two types: a moving iron unit and a moving coil unit.
- the moving iron unit drives the diaphragm to vibrate through the drive rod to make it vibrate and produce sound.
- the horn device of this structure has a regular appearance and small volume, but the structure is complex and the cost is high.
- the moving coil unit has a relatively simple structure and low cost, but its shape is irregular and its size is too large.
- the technical problem to be solved by the present invention is to provide an improved horn device.
- the technical solution adopted by the present invention to solve its technical problems is to construct a horn device that includes a housing, a magnetic circuit system and a vibration system arranged in the housing, and the vibration system includes The planar drive coil that generates mechanical motion under the action of the magnetic field of the circuit system and the diaphragm driven by the planar drive coil, the magnetic circuit system includes a magnetically conductive protrusion extending toward the planar drive coil to guide The magnetic field concentration area of the magnetic circuit system extends to or close to the maximum force position of the planar drive coil.
- the magnetically conductive protrusion is penetrated from the side of the planar drive coil close to the magnetic circuit system to the side far away from the magnetic circuit system.
- the diaphragm includes an avoiding portion that arches away from the magnetic circuit system.
- the diaphragm includes a planar portion for the planar drive coil, and the relief portion is formed on the planar portion.
- the planar drive coil has a ring shape, which includes a hollow portion in the middle, and the magnetic conductive protrusion penetrates the planar drive coil through the hollow portion, and the avoiding portion is connected to the hollow portion.
- Department correspondence includes a ring shape, which includes a hollow portion in the middle, and the magnetic conductive protrusion penetrates the planar drive coil through the hollow portion, and the avoiding portion is connected to the hollow portion.
- the magnetic circuit system includes an electromagnet in the middle, and the magnetically conductive protrusions are arranged on the top of the electromagnet.
- the electromagnet includes an iron core and a coil surrounding the side wall of the iron core, and the magnetic conductive protrusion is disposed on the top of the iron core.
- the magnetic circuit system includes two permanent magnets, and the two permanent magnets are respectively arranged on two opposite sides of the electromagnet and arranged in a staggered arrangement with the electromagnet.
- the electromagnet and the two permanent magnets are both elongated, and the two permanent magnets are respectively arranged at two opposite sides of the permanent magnet in parallel and spaced apart.
- the magnetic circuit system includes a controller electrically connected to the electromagnet to control the magnitude of the current flowing through the electromagnet.
- the planar drive coil is bonded to the diaphragm by printing or bonding.
- the horn device implementing the present invention has the following beneficial effects: Since the driving circuit of the vibration system is planar, the thickness of the horn device can be effectively reduced.
- FIG. 1 is a schematic diagram of the three-dimensional structure of the horn device in the first embodiment of the present invention
- FIG. 2 is a schematic diagram of the A-A cross-sectional structure of the horn device shown in FIG. 1;
- FIG. 3 is a schematic diagram of a three-dimensional exploded structure of the horn device shown in FIG. 1;
- FIG. 4 is a schematic diagram of the three-dimensional structure of the horn device in the second embodiment of the present invention.
- FIG. 5 is a schematic diagram of a three-dimensional exploded structure of the horn device shown in FIG. 4;
- FIG. 6 is a schematic diagram of the three-dimensional structure of the horn device in the third embodiment of the present invention.
- FIG. 7 is a schematic diagram of a three-dimensional exploded structure of the horn device shown in FIG. 6;
- FIG. 8 is a schematic diagram of a three-dimensional exploded cross-sectional structure of the horn device shown in FIG. 6;
- FIG. 9 is a schematic diagram of the three-dimensional structure of the horn device in the fourth embodiment of the present invention.
- FIG. 10 is a schematic diagram of a three-dimensional exploded structure of the horn device shown in FIG. 9;
- FIG. 11 is a partial three-dimensional structural diagram of the horn device in the fifth embodiment of the present invention.
- Fig. 12 is a three-dimensional exploded structural diagram of the horn device shown in Fig. 11;
- FIG. 13 is a partial three-dimensional structural diagram of the horn device in the sixth embodiment of the present invention.
- FIG. 14 is a schematic diagram of the three-dimensional structure of the horn device in the seventh embodiment of the present invention.
- FIG. 15 is a schematic diagram of a three-dimensional exploded structure of the horn device shown in FIG. 14;
- FIG. 16 is a schematic diagram of a longitudinal cross-sectional structure of the horn device shown in FIG. 14.
- FIGS 1 to 3 show the horn device 1 in the first embodiment of the present invention.
- the horn device 1 can be used in electronic products such as earphones and mobile phones to convert electrical signals into mechanical motion, and finally into sound signals.
- the horn device 1 may include a housing 110, a magnetic circuit system 120 arranged in the housing 110, and a vibration system 130 arranged in the housing 110 and movable under the action of the magnetic circuit system 120.
- the magnetic circuit system 120 may be disposed on the bottom wall of the housing 110, and the vibration system 130 is disposed directly above the magnetic circuit system 120.
- the housing 110 may have a rectangular parallelepiped shape, and it may include a lower housing 111 and an upper housing 112 matched with the lower housing 111. The lower shell 111 and the upper shell 112 are combined together to define an installation space for accommodating the magnetic circuit system 120 and the vibration system 130.
- the magnetic circuit system 120 may include an electromagnet 121 and a magnet 122 disposed on the top of the electromagnet 121 in some embodiments.
- the electromagnet 121 may include a rectangular iron core 1211 laid flat on the bottom wall of the lower housing 111. And a racetrack loop drive coil 1212 surrounding the side wall surface of the iron core 1211.
- the permeable magnet 122 may be in the shape of a sheet in some embodiments, and its shape and size are adapted to the electromagnet 121.
- the magnetic circuit system 120 may further include a controller (not shown) connected to the driving coil 1212. The controller is used to control the current flowing through the driving coil 1212 to control the electromagnetic field force of the electromagnet 121. Size, so that the sensitivity of the horn device 1 can be controlled. Compared with the magnetic circuit system using only permanent magnets, the advantages of the magnetic circuit system 120 are very obvious.
- the vibration system 130 includes a planar diaphragm 131 horizontally arranged above the magnetic circuit system 120 and a driving coil 132 combined with the bottom surface of the diaphragm 131.
- the driving coil 132 can be wound into a racetrack loop with a wire and surround it.
- the driving coil 132 may be one layer or more than one layer. After the driving coil 132 is energized, it can move under the action of the magnetic circuit system 120 and drive the diaphragm 131 to move to produce sound.
- the diaphragm 131 includes a flat portion 1311 and an arched Mylar diaphragm 1312 connected to the periphery of the flat portion 1311. The diaphragm 131 is connected to the housing 110 via the Mylar diaphragm 1312.
- the horn device 2 may include a housing 210, a magnetic circuit system 220 arranged in the housing 210, and a magnetic circuit system 220 arranged in the housing 210 and The vibration system 230 moves under the action of the magnetic circuit system 220.
- the magnetic circuit system 220 may be disposed on the bottom wall of the housing 210, and the vibration system 230 is disposed directly above the magnetic circuit system 220.
- the housing 210 may be circular in some embodiments, and it may include a lower housing 211 and an upper housing (not) matched with the lower housing 211.
- the lower casing 211 and the upper casing are combined together to define an installation space for accommodating the magnetic circuit system 220 and the vibration system 230.
- the magnetic circuit system 220 may include an array of a plurality of electromagnets 221 in some embodiments.
- Each electromagnet 221 has a longitudinal shape, and the electromagnets 221 are arranged in parallel and spaced apart, and a gap 222 is formed between adjacent electromagnets 221.
- Each electromagnet 221 includes an elongated iron core 2211 and a coil 2212 surrounding the side wall of the iron core. The polarities of the adjacent electromagnets 221 are staggered up and down, that is, if the upper end of an electromagnet 221 is the N pole, the upper end of the adjacent electromagnet 221 is the S pole.
- the magnetic circuit system 220 may further include a controller (not shown) respectively connected to the electromagnets 221. The controller is used to control the current flowing through the coils 2212 of the electromagnets 221 to control the electromagnets 221.
- the size of the electromagnetic field force of the body 221 can control the sensitivity of the horn device 2.
- the vibration system 230 includes a planar diaphragm 231 horizontally arranged above the magnetic circuit system 220 and a planar drive coil 232 combined with the surface of the diaphragm 231.
- the drive coil 232 can be printed, etched, thermoformed, Gluing or laser etching is formed on the surface of the diaphragm 231, which may be formed on the lower surface and/or the upper surface of the diaphragm 231.
- the diaphragm 231 may include a flexible circuit board in some embodiments.
- the driving coil 232 may include a plurality of straight sections 2321, and the straight sections 2321 are respectively arranged corresponding to the gaps 222 between the electromagnets 221. During operation, according to the left-hand rule, after the driving coil 232 is energized, these straight sections 2321 will be subjected to upward or downward force in the horizontal magnetic field directly above the gap 222 of the magnetic circuit system 220, thereby generating movement.
- the horn device 3 may include a housing 310, a magnetic circuit system 320 arranged in the housing 310, and a magnetic circuit system 320 arranged in the housing 310 and The vibration system 330 moves under the action of the magnetic circuit system 320.
- the magnetic circuit system 320 may be disposed on the bottom wall of the housing 310, and the vibration system 330 is disposed directly above the magnetic circuit system 320.
- the housing 310 may have a circular shape in some embodiments, and it may include a lower housing 311 and an upper housing (not) matched with the lower housing 311.
- the lower casing 311 and the upper casing are combined together to define an installation space for accommodating the magnetic circuit system 320 and the vibration system 330.
- the magnetic circuit system 320 may include an array of a plurality of electromagnets 321 in some embodiments.
- Each electromagnet 321 has a cylindrical shape.
- the electromagnets 321 include a central electromagnet 321 located in the middle and a number of peripheral electromagnets 321 arranged in a circular array around the central electromagnet 321.
- the central electromagnet 321 and A gap 322 is formed between the peripheral electromagnets 321.
- Each electromagnet 321 includes a cylindrical iron core 3211 and a coil 3212 surrounding the side wall of the iron core 3211.
- the polarities of the central electromagnet 321 and the peripheral electromagnets 321 are alternately arranged up and down, that is, if the upper end of the central electromagnet 321 is an N pole, the upper end of the peripheral electromagnet 321 is an S pole.
- the magnetic circuit system 320 may further include a controller (not shown) respectively connected to the electromagnets 321. The controller is used to control the current flowing through the coils 3212 of the electromagnets 321 to control the electromagnets.
- the size of the electromagnetic field force of the body 321 can control the sensitivity of the horn device 3.
- the central electromagnet 321 is larger than the size of the peripheral electromagnet 321.
- the vibration system 330 includes a planar diaphragm 331 horizontally arranged above the magnetic circuit system 220 and a planar drive coil 332 combined on the surface of the diaphragm 331.
- the drive coil 332 can be spirally wound with a wire. It can be bonded to the lower surface and/or upper surface of the diaphragm 331 by means of bonding or the like.
- the driving coil 332 may have a circular ring shape and is arranged corresponding to the gap 322 between the central electromagnet 321 and the peripheral electromagnet 321. In the working process, according to the left-hand rule, after the driving coil 332 is energized, it will receive an upward or downward force in the horizontal magnetic field directly above the gap 322 of the magnetic circuit system 320, thereby generating movement.
- the horn device 4 may include a housing 410, a magnetic circuit system 420 arranged in the housing 410, and a magnetic circuit system 420 arranged in the housing 410.
- the vibration system 430 moves under the action of the magnetic circuit system 420.
- the magnetic circuit system 420 may be disposed on the bottom wall of the housing 410, and the vibration system 430 is disposed directly above the magnetic circuit system 420.
- the housing 410 may be rectangular in some embodiments, and it may include a lower housing 411 and an upper housing 412 matched with the lower housing 411. The lower housing 411 and the upper housing 412 are combined together to define an installation space for accommodating the magnetic circuit system 420 and the vibration system 430.
- the magnetic circuit system 420 may include an array of a plurality of electromagnets 421 in some embodiments.
- Each electromagnet 421 is elongated.
- These electromagnets 421 include a central electromagnet 421 located in the middle, side electromagnets 421 arranged in parallel and spaced apart on opposite sides of the central electromagnet 421, and spaced and perpendicularly distributed in the central electromagnet.
- a gap 422 is formed between the end electromagnets 421 at both ends of the body 421, the center electromagnet 421 and the side electromagnets 421 and the end electromagnets 421.
- Each electromagnet 421 includes an elongated iron core 4211 and a coil 4212 surrounding the side wall of the iron core 4211.
- the polarities of the center electromagnet 421 and the side electromagnets 421 and the end electromagnets 421 are arranged in a staggered manner, that is, if the upper end of the center electromagnet 421 is N pole, the upper ends of the side electromagnets 421 and the end electromagnets 421 It is S pole.
- the magnetic circuit system 420 may further include controllers (not shown) respectively connected to the electromagnets 421. The controllers are used to control the current flowing through the coils 4212 of the electromagnets 421 to control the electromagnets.
- the size of the electromagnetic field force of the body 421 can thereby control the sensitivity of the horn device 4.
- the vibration system 430 includes a planar diaphragm 431 horizontally arranged above the magnetic circuit system 420 and a planar drive coil 432 combined on the surface of the diaphragm 431.
- the drive coil 432 can be spirally wound with a wire. It can be bonded to the lower surface and/or upper surface of the diaphragm 431 by means of bonding or the like.
- the driving coil 432 may have a racetrack loop shape in some embodiments, and is arranged corresponding to the gap 422 between the center electromagnet 421 and the side electromagnets 421 and the end electromagnets 421. During the working process, according to the left-hand rule, after the driving coil 432 is energized, it will receive an upward or downward force in the horizontal magnetic field directly above the gap 422 of the magnetic circuit system 420, thereby generating movement.
- FIGS 11 and 12 show a horn device 5 in a fifth embodiment of the present invention.
- the horn device 5 may include a housing 510, a magnetic circuit system 520 arranged in the housing 510, and a magnetic circuit system 520 arranged in the housing 510.
- the vibration system 530 moves under the action of the magnetic circuit system 520.
- the magnetic circuit system 520 may be disposed on the bottom wall of the housing 510, and the vibration system 530 is disposed directly above the magnetic circuit system 520.
- the housing 510 may be rectangular in some embodiments, and it may include a lower housing 511 and an upper housing matched with the lower housing 511. The lower housing 511 and the upper housing are combined together to define an installation space for accommodating the magnetic circuit system 520 and the vibration system 530.
- the magnetic circuit system 520 may include an array of a plurality of electromagnets 521 in some embodiments.
- Each electromagnet 521 is elongated, and the electromagnets 521 are arranged in parallel and spaced apart, and a gap 522 is formed between adjacent electromagnets 521.
- Each electromagnet 521 includes an elongated iron core 5211 and a coil 5212 surrounding the side wall of the iron core 5211. The polarities of the adjacent electromagnets 521 are staggered up and down, that is, if the upper end of an electromagnet 521 is the N pole, the upper end of the adjacent electromagnet 521 is the S pole.
- the magnetic circuit system 520 may further include controllers (not shown) respectively connected to the electromagnets 521.
- the controllers are used to control the current flowing through the coils 5212 of the electromagnets 521 to control the electromagnets.
- the size of the electromagnetic field force of the body 521 can control the sensitivity of the horn device 5.
- the magnetic circuit system 520 may include a plurality of annular washers 523 in some embodiments, and the washers 523 respectively cover the tops of the coils 5212 of the electromagnets 521, and the shapes and sizes are adapted to the corresponding coils 5212.
- the vibration system 530 includes a planar diaphragm (not shown) horizontally arranged above the magnetic circuit system 520 and a planar drive coil 532 combined on the surface of the diaphragm.
- the drive coil 532 can be in the form of a wire. It is spirally wound, and can be bonded to the lower surface and/or upper surface of the diaphragm by means such as bonding.
- the driving coil 532 may be S-shaped in some embodiments, and it includes a plurality of straight sections 5321, and the straight sections 5321 are arranged corresponding to the gaps 522 respectively. During the working process, according to the left-hand rule, after the driving coil 532 is energized, it will receive an upward or downward force in the horizontal magnetic field directly above the gap 522 of the magnetic circuit system 520, thereby generating movement.
- the horn device 6 may include a housing 610, a magnetic circuit system 620 arranged in the housing 610, and a magnetic circuit system 620 arranged in the housing 610 and capable of being connected to the magnetic circuit.
- a vibration system (not shown) that moves under the action of the system 620.
- the magnetic circuit system 620 may be disposed on the bottom wall of the housing 610, and the vibration system is disposed directly above the magnetic circuit system 620.
- the housing 610 may be rectangular in some embodiments, and it may include a lower housing 611 and an upper housing matched with the lower housing 611. The lower casing 611 and the upper casing are combined together to define an installation space for accommodating the magnetic circuit system 620 and the vibration system.
- the magnetic circuit system 620 may include one electromagnet 621 and two permanent magnets 624 in some embodiments.
- the electromagnet 621 and the permanent magnet 624 are both elongated, and the two permanent magnets 624 are respectively arranged on two opposite sides of the electromagnet 621 and arranged in parallel and spaced apart.
- a gap 622 is formed between the permanent magnet 624 and the electromagnet 621.
- the electromagnet 621 includes an elongated iron core 6211 and a coil 6212 surrounding the side wall of the iron core 6211.
- the polarities of the electromagnet 621 and the permanent magnet 624 are alternately arranged up and down, that is, if the upper end of the electromagnet 621 is an N pole, the upper end of the permanent magnet 624 is an S pole.
- the magnetic circuit system 620 may also include a controller (not shown) connected to the electromagnets 621.
- the controller is used to control the current flowing through the coils 6212 of the electromagnets 621 to control the electromagnets 621.
- the magnitude of the electromagnetic field force can thereby control the sensitivity of the horn device 6.
- FIGS 14 and 15 show a horn device 7 in a seventh embodiment of the present invention.
- the horn device 7 may include a housing 710, a magnetic circuit system 720 arranged in the housing 710, and a magnetic circuit system 720 arranged in the housing 710.
- the vibration system 730 moves under the action of the magnetic circuit system 720.
- the magnetic circuit system 720 may be disposed on the bottom wall of the housing 710, and the vibration system 730 is disposed directly above the magnetic circuit system 720.
- the housing 710 may be rectangular in some embodiments, and it may include a lower housing 711 and an upper housing 712 matched with the lower housing 711.
- the lower housing 711 and the upper housing 712 are combined together to define an installation space for accommodating the magnetic circuit system 720 and the vibration system 730.
- the magnetic circuit system 720 may include one electromagnet 721 and two permanent magnets 724 in some embodiments. Both the electromagnet 721 and the permanent magnet 724 are elongated, and the two permanent magnets 724 are respectively arranged on two opposite sides of the electromagnet 721 and arranged in parallel and spaced apart. A gap 722 is formed between the permanent magnet 724 and the electromagnet 721.
- the electromagnet 721 includes a long iron core 7211 and a coil 7212 surrounding the side wall of the iron core 7211.
- the polarities of the electromagnet 721 and the permanent magnet 724 are alternately arranged up and down, that is, if the upper end of the electromagnet 721 is an N pole, the upper end of the permanent magnet 724 is an S pole.
- the magnetic circuit system 720 may further include a controller (not shown) connected to the electromagnets 721.
- the controller is used to control the current flowing through the coils 7212 of the electromagnets 721 to control the electromagnets 721.
- the magnitude of the electromagnetic field force can thereby control the sensitivity of the horn device 7.
- the magnetic circuit system 720 in some embodiments may further include a magnetically conductive protrusion 725 disposed on the top of the iron core 7211 of the electromagnet 721, and the magnetically conductive protrusion 725 can be close to or deep into the plane of the vibration system 730 Type the middle part of the drive coil 732 to improve the vibration efficiency.
- the driving coil 732 is a toroidal planar coil, the strongest position of the magnetic field force generated by the magnetic field is at the center of the driving coil 732. If the main magnetic field of the magnetic circuit system 720 is under the entire driving coil 732, it cannot interact with The maximum force position of the magnetic field of the drive coil 732 is optimally matched.
- the magnetically conductive protrusion 725 is not limited to being applied to the electromagnet 721, and it can also be applied to a permanent magnet.
- the vibration system 730 includes a planar diaphragm 731 horizontally arranged above the magnetic circuit system 720 and a planar drive coil 732 combined on the surface of the diaphragm 731.
- the drive coil 732 can be spirally wound with a wire. It can be bonded to the lower surface and/or upper surface of the diaphragm 731 by means of bonding or the like.
- the driving coil 732 may be a racetrack loop, which includes two opposite straight sections 7321 and a transparent portion 7320 between the two straight sections 7321, and the straight section 7321 corresponds to the gap 722 Set up.
- the driving coil 732 After the driving coil 732 is energized, it will receive an upward or downward force in the horizontal magnetic field directly above the gap 722 of the magnetic circuit system 720, thereby generating movement.
- the diaphragm 731 is provided with a dome-shaped avoiding portion 7310 arched toward the outside corresponding to the hollow portion 7320 to form a magnetically conductive protrusion 725 that can extend into it, so that the magnetically conductive protrusion 725 can be driven by a drive coil 732.
- the side penetrates to the other side, and the magnetic field concentration area of the guiding magnetic circuit system 720 extends to or close to the maximum force position of the driving coil 732.
- the diaphragm 731 in some embodiments includes a flat portion 7311 and an arched Mylar diaphragm 7312 connected to the periphery of the flat portion 7311.
- the diaphragm 731 is connected to the housing 710 via the Mylar diaphragm 7312.
- the avoiding portion 7310 is formed in the middle of the flat portion 7311 to prevent the diaphragm 731 from contacting the magnetic conductive protrusion 725 during the vibration.
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The present invention relates to a horn apparatus. The horn apparatus comprises a housing, and a magnetic circuit system and a vibration system that are provided in the housing. The vibration system comprises a planar driving coil that may generate mechanical motion under the action of the magnetic field of the magnetic circuit system, and a vibration diaphragm driven by the planar driving coil. The magnetic circuit system comprises a magnetically conductive protrusion protruding toward the planar driving coil so as to guide the magnetic field concentration region of the magnetic circuit system to extend to or be close to the maximum stressed position of the planar driving coil. The horn apparatus of the present invention can effectively reduce the thickness of the horn apparatus because the planar driving coil drives the vibration diaphragm.
Description
本发明涉及声学领域,更具体地说,涉及一种喇叭装置。The present invention relates to the field of acoustics, and more specifically, to a horn device.
喇叭装置是一种电声元件,其作用是将电信号转换为声信号。随着目前薄型化的趋势,对喇叭装置的尺寸要求也更加严格。The horn device is an electro-acoustic element whose function is to convert an electric signal into an acoustic signal. With the current trend of thinning, the size requirements of the horn device are also more stringent.
相关技术中的喇叭装置包括动铁单元以及动圈单元两个种类。动铁单元是通过驱动杆驱动振膜振动,使其振动发声,这种结构的喇叭装置,外形规则且体积小,但结构复杂成本很高。动圈单元结构相对简单、成本低,但外形不规则且尺寸太大。The horn device in the related art includes two types: a moving iron unit and a moving coil unit. The moving iron unit drives the diaphragm to vibrate through the drive rod to make it vibrate and produce sound. The horn device of this structure has a regular appearance and small volume, but the structure is complex and the cost is high. The moving coil unit has a relatively simple structure and low cost, but its shape is irregular and its size is too large.
本发明要解决的技术问题在于,提供一种改进的喇叭装置。The technical problem to be solved by the present invention is to provide an improved horn device.
本发明解决其技术问题所采用的技术方案是:构造一种喇叭装置,该喇叭装置包括壳体以及设置于所述壳体内的磁路***和振动***,所述振动***包括可在所述磁路***的磁场作用下产生机械运动的平面型驱动线圈以及受所述平面型驱动线圈驱动的振膜,所述磁路***包括朝向所述平面型驱动线圈伸出的导磁凸起,以引导所述磁路***的磁场集中区域延伸至或靠近所述平面型驱动线圈的最大受力位置。The technical solution adopted by the present invention to solve its technical problems is to construct a horn device that includes a housing, a magnetic circuit system and a vibration system arranged in the housing, and the vibration system includes The planar drive coil that generates mechanical motion under the action of the magnetic field of the circuit system and the diaphragm driven by the planar drive coil, the magnetic circuit system includes a magnetically conductive protrusion extending toward the planar drive coil to guide The magnetic field concentration area of the magnetic circuit system extends to or close to the maximum force position of the planar drive coil.
在一些实施例中,所述导磁凸起由所述平面型驱动线圈靠近所述磁路***的一侧贯穿至远离所述磁路***的一侧。In some embodiments, the magnetically conductive protrusion is penetrated from the side of the planar drive coil close to the magnetic circuit system to the side far away from the magnetic circuit system.
在一些实施例中,所述振膜包括朝远离所述磁路***方向拱起的避让部。In some embodiments, the diaphragm includes an avoiding portion that arches away from the magnetic circuit system.
在一些实施例中,所述振膜包括供所述平面型驱动线圈设置的平面部,所述避让部形成于该平面部上。In some embodiments, the diaphragm includes a planar portion for the planar drive coil, and the relief portion is formed on the planar portion.
在一些实施例中,所述平面型驱动线圈呈环形,其包括位于中部的透空部,所述导磁凸起经由该透空部贯穿该平面型驱动线圈,所述避让部与该透空部对应。In some embodiments, the planar drive coil has a ring shape, which includes a hollow portion in the middle, and the magnetic conductive protrusion penetrates the planar drive coil through the hollow portion, and the avoiding portion is connected to the hollow portion. Department correspondence.
在一些实施例中,所述磁路***包括位于中部的电磁体,所述导磁凸起设置于该电磁体的顶部。In some embodiments, the magnetic circuit system includes an electromagnet in the middle, and the magnetically conductive protrusions are arranged on the top of the electromagnet.
在一些实施例中,所述电磁体包括铁芯以及环绕于该铁芯侧壁上的线圈,所述导磁凸起设置于该铁芯的顶部。In some embodiments, the electromagnet includes an iron core and a coil surrounding the side wall of the iron core, and the magnetic conductive protrusion is disposed on the top of the iron core.
在一些实施例中,所述磁路***包括两个永磁体,所述两个永磁体分别布置于所述电磁体的两相对侧,与所述电磁体的极性呈交错布置。In some embodiments, the magnetic circuit system includes two permanent magnets, and the two permanent magnets are respectively arranged on two opposite sides of the electromagnet and arranged in a staggered arrangement with the electromagnet.
在一些实施例中,所述电磁体和所述两个永磁体均呈长条状,所述两个永磁体分别呈平行间隔布置于所述永磁体的两相对侧。In some embodiments, the electromagnet and the two permanent magnets are both elongated, and the two permanent magnets are respectively arranged at two opposite sides of the permanent magnet in parallel and spaced apart.
在一些实施例中,所述磁路***包括与所述电磁体电性连接的控制器,以控制流经所述电磁体中的电流的大小。In some embodiments, the magnetic circuit system includes a controller electrically connected to the electromagnet to control the magnitude of the current flowing through the electromagnet.
在一些实施例中,所述平面型驱动线圈通过印刷或粘接的方式结合于所述振膜上。In some embodiments, the planar drive coil is bonded to the diaphragm by printing or bonding.
实施本发明的喇叭装置,具有以下有益效果:由于振动***的驱动线路呈平面型,可以有效降低喇叭装置的厚度。The horn device implementing the present invention has the following beneficial effects: Since the driving circuit of the vibration system is planar, the thickness of the horn device can be effectively reduced.
下面将结合附图及实施例对本发明作进一步说明,附图中:The present invention will be further described below in conjunction with the accompanying drawings and embodiments. In the accompanying drawings:
图1是本发明第一实施例中的喇叭装置的立体结构示意图;FIG. 1 is a schematic diagram of the three-dimensional structure of the horn device in the first embodiment of the present invention;
图2是图1所示喇叭装置的A-A向剖面结构示意图;2 is a schematic diagram of the A-A cross-sectional structure of the horn device shown in FIG. 1;
图3是图1所示喇叭装置的立体分解结构示意图;3 is a schematic diagram of a three-dimensional exploded structure of the horn device shown in FIG. 1;
图4是本发明第二实施例中的喇叭装置的立体结构示意图;4 is a schematic diagram of the three-dimensional structure of the horn device in the second embodiment of the present invention;
图5是图4所示喇叭装置的立体分解结构示意图;FIG. 5 is a schematic diagram of a three-dimensional exploded structure of the horn device shown in FIG. 4;
图6是本发明第三实施例中的喇叭装置的立体结构示意图;6 is a schematic diagram of the three-dimensional structure of the horn device in the third embodiment of the present invention;
图7是图6所示喇叭装置的立体分解结构示意图;FIG. 7 is a schematic diagram of a three-dimensional exploded structure of the horn device shown in FIG. 6;
图8是图6所示喇叭装置的立体分解剖面结构示意图;FIG. 8 is a schematic diagram of a three-dimensional exploded cross-sectional structure of the horn device shown in FIG. 6;
图9是本发明第四实施例中的喇叭装置的立体结构示意图;9 is a schematic diagram of the three-dimensional structure of the horn device in the fourth embodiment of the present invention;
图10是图9所示喇叭装置的立体分解结构示意图;FIG. 10 is a schematic diagram of a three-dimensional exploded structure of the horn device shown in FIG. 9;
图11是本发明第五实施例中的喇叭装置的局部立体结构示意图;11 is a partial three-dimensional structural diagram of the horn device in the fifth embodiment of the present invention;
图12是图11所示喇叭装置的立体分解结构示意图;Fig. 12 is a three-dimensional exploded structural diagram of the horn device shown in Fig. 11;
图13是本发明第六实施例中的喇叭装置的局部立体结构示意图;13 is a partial three-dimensional structural diagram of the horn device in the sixth embodiment of the present invention;
图14是本发明第七实施例中的喇叭装置的立体结构示意图;14 is a schematic diagram of the three-dimensional structure of the horn device in the seventh embodiment of the present invention;
图15是图14所示喇叭装置的立体分解结构示意图;15 is a schematic diagram of a three-dimensional exploded structure of the horn device shown in FIG. 14;
图16是图14所示喇叭装置的纵向剖面结构示意图。FIG. 16 is a schematic diagram of a longitudinal cross-sectional structure of the horn device shown in FIG. 14.
为了对本发明的技术特征、目的和效果有更加清楚的理解,现对照附图详细说明本发明的具体实施方式。以下描述中,需要理解的是,“前”、“后”、“上”、“下”、“左”、“右”、“纵”、“横”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“头”、“尾”等指示的方位或位置关系为基于附图所示的方位或位置关系、以特定的方位构造和操作,仅是为了便于描述本技术方案,而不是指示所指的装置或元件必须具有特定的方位,因此不能理解为对本发明的限制。In order to have a clearer understanding of the technical features, objectives and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that "front", "rear", "up", "down", "left", "right", "vertical", "horizontal", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", "head", "tail", etc. are based on the orientation or positional relationship shown in the drawings, constructed and operated in a specific orientation, It is only for the convenience of describing the technical solution, rather than indicating that the pointed device or element must have a specific orientation, so it cannot be understood as a limitation of the present invention.
图1至图3示出了本发明第一实施例中的喇叭装置1,该喇叭装置1可用于耳机、手机等电子产品中,将电信号转化为机械运动,并最终转化为声音信号。该喇叭装置1可包括壳体110、设置于壳体110内的磁路***120以及设置于壳体110内并可在磁路***120的作用下运动的振动***130。在一些实施例中,磁路***120可设置于壳体110的底壁上,振动***130设置于磁路***120的正上方。壳体110在一些实施例中可呈长方体状,其可包括下壳体111以及与该下壳体111相配合的上壳体112。下壳体111和上壳体112结合在一起,界定出容置磁路***120以及振动***130的安装空间。Figures 1 to 3 show the horn device 1 in the first embodiment of the present invention. The horn device 1 can be used in electronic products such as earphones and mobile phones to convert electrical signals into mechanical motion, and finally into sound signals. The horn device 1 may include a housing 110, a magnetic circuit system 120 arranged in the housing 110, and a vibration system 130 arranged in the housing 110 and movable under the action of the magnetic circuit system 120. In some embodiments, the magnetic circuit system 120 may be disposed on the bottom wall of the housing 110, and the vibration system 130 is disposed directly above the magnetic circuit system 120. In some embodiments, the housing 110 may have a rectangular parallelepiped shape, and it may include a lower housing 111 and an upper housing 112 matched with the lower housing 111. The lower shell 111 and the upper shell 112 are combined together to define an installation space for accommodating the magnetic circuit system 120 and the vibration system 130.
磁路***120在一些实施例中可包括电磁体121以及设置于电磁体121顶部的导磁体122,电磁体121在一些实施例中可包括平铺在下壳体111底壁上的矩形铁芯1211以及环绕于铁芯1211侧壁面的跑道环型驱动线圈1212。导磁体122在一些实施例中可呈片状,其形状和尺寸与电磁体121相适配。磁路***120在一些实施例中还可包括与驱动线圈1212相连接的控制器(未图示),该控制器用来控制流经驱动线圈1212的电流,以控制该电磁体121的电磁场力的大小,从而可以控制喇叭装置1的灵敏度。相比单纯采用永磁体的磁路***而言,该磁路***120的优点非常明显。The magnetic circuit system 120 may include an electromagnet 121 and a magnet 122 disposed on the top of the electromagnet 121 in some embodiments. In some embodiments, the electromagnet 121 may include a rectangular iron core 1211 laid flat on the bottom wall of the lower housing 111. And a racetrack loop drive coil 1212 surrounding the side wall surface of the iron core 1211. The permeable magnet 122 may be in the shape of a sheet in some embodiments, and its shape and size are adapted to the electromagnet 121. In some embodiments, the magnetic circuit system 120 may further include a controller (not shown) connected to the driving coil 1212. The controller is used to control the current flowing through the driving coil 1212 to control the electromagnetic field force of the electromagnet 121. Size, so that the sensitivity of the horn device 1 can be controlled. Compared with the magnetic circuit system using only permanent magnets, the advantages of the magnetic circuit system 120 are very obvious.
振动***130在一些实施例中包括水平布置于磁路***120上方的平面型振膜131以及结合于振膜131底面的驱动线圈132,驱动线圈132可采用导线缠绕成跑道环型,并环绕在电磁体121的***,该驱动线圈132可以是一层或一层以上。该驱动线圈132通电后,能够磁路***120的作用下运动,并带动振膜131运动产生声音。振膜131在一些实施例包括平面部1311以及连接于该平面部1311周缘的拱起的麦拉膜1312。振膜131经由麦拉膜1312与壳体110相连接。In some embodiments, the vibration system 130 includes a planar diaphragm 131 horizontally arranged above the magnetic circuit system 120 and a driving coil 132 combined with the bottom surface of the diaphragm 131. The driving coil 132 can be wound into a racetrack loop with a wire and surround it. At the periphery of the electromagnet 121, the driving coil 132 may be one layer or more than one layer. After the driving coil 132 is energized, it can move under the action of the magnetic circuit system 120 and drive the diaphragm 131 to move to produce sound. In some embodiments, the diaphragm 131 includes a flat portion 1311 and an arched Mylar diaphragm 1312 connected to the periphery of the flat portion 1311. The diaphragm 131 is connected to the housing 110 via the Mylar diaphragm 1312.
图4及图5示出了本发明第二实施例中的喇叭装置2,该喇叭装置2可包括壳体210、设置于壳体210内的磁路***220以及设置于壳体210内并可在磁路***220的作用下运动的振动***230。在一些实施例中,磁路***220可设置于壳体210的底壁上,振动***230设置于磁路***220的正上方。壳体210在一些实施例中可呈圆形,其可包括下壳体211以及与该下壳体211相配合的上壳体(未)。下壳体211和上壳体结合在一起,界定出容置磁路***220以及振动***230的安装空间。4 and 5 show the horn device 2 in the second embodiment of the present invention. The horn device 2 may include a housing 210, a magnetic circuit system 220 arranged in the housing 210, and a magnetic circuit system 220 arranged in the housing 210 and The vibration system 230 moves under the action of the magnetic circuit system 220. In some embodiments, the magnetic circuit system 220 may be disposed on the bottom wall of the housing 210, and the vibration system 230 is disposed directly above the magnetic circuit system 220. The housing 210 may be circular in some embodiments, and it may include a lower housing 211 and an upper housing (not) matched with the lower housing 211. The lower casing 211 and the upper casing are combined together to define an installation space for accommodating the magnetic circuit system 220 and the vibration system 230.
磁路***220在一些实施例中可包括多个电磁体221构成的阵列。每个电磁体221均呈纵长型,这些电磁体221平行间隔地排布,相邻的电磁体221之间形成有间隙222。每个电磁体221包括纵长的铁芯2211以及环绕于铁芯侧壁上的线圈2212。相邻电磁体221的极性呈上下交错排布,即一个电磁体221若上端为N极,则相邻的电磁体221的上端为S极。磁路***220在一些实施例中还可包括分别与这些电磁体221相连接的控制器(未图示),该控制器用来控制流经这些电磁体221的线圈2212的电流,以控制这些电磁体221的电磁场力的大小,从而可以控制喇叭装置2的灵敏度。The magnetic circuit system 220 may include an array of a plurality of electromagnets 221 in some embodiments. Each electromagnet 221 has a longitudinal shape, and the electromagnets 221 are arranged in parallel and spaced apart, and a gap 222 is formed between adjacent electromagnets 221. Each electromagnet 221 includes an elongated iron core 2211 and a coil 2212 surrounding the side wall of the iron core. The polarities of the adjacent electromagnets 221 are staggered up and down, that is, if the upper end of an electromagnet 221 is the N pole, the upper end of the adjacent electromagnet 221 is the S pole. In some embodiments, the magnetic circuit system 220 may further include a controller (not shown) respectively connected to the electromagnets 221. The controller is used to control the current flowing through the coils 2212 of the electromagnets 221 to control the electromagnets 221. The size of the electromagnetic field force of the body 221 can control the sensitivity of the horn device 2.
振动***230在一些实施例中包括水平布置于磁路***220上方的平面型振膜231以及结合于振膜231表面的平面型驱动线圈232,驱动线圈232可采用印刷、蚀刻、热压成型、胶合或激光腐蚀等方式形成于振膜231表面,其可以形成于振膜231的下表面和/或上表面。振膜231在一些实施例中可包括柔性电路板。驱动线圈232在一些实施例中可包括若干个平直段2321,这些平直段2321分别与这些电磁体221之间的间隙222对应设置。工作过程中,根据左手法则,驱动线圈232通电后,这些平直段2321会在磁路***220的间隙222的正上方的水平磁场内受到向上或者向下的力,从而产生运动。In some embodiments, the vibration system 230 includes a planar diaphragm 231 horizontally arranged above the magnetic circuit system 220 and a planar drive coil 232 combined with the surface of the diaphragm 231. The drive coil 232 can be printed, etched, thermoformed, Gluing or laser etching is formed on the surface of the diaphragm 231, which may be formed on the lower surface and/or the upper surface of the diaphragm 231. The diaphragm 231 may include a flexible circuit board in some embodiments. In some embodiments, the driving coil 232 may include a plurality of straight sections 2321, and the straight sections 2321 are respectively arranged corresponding to the gaps 222 between the electromagnets 221. During operation, according to the left-hand rule, after the driving coil 232 is energized, these straight sections 2321 will be subjected to upward or downward force in the horizontal magnetic field directly above the gap 222 of the magnetic circuit system 220, thereby generating movement.
图6至图8示出了本发明第三实施例中的喇叭装置3,该喇叭装置3可包括壳体310、设置于壳体310内的磁路***320以及设置于壳体310内并可在磁路***320的作用下运动的振动***330。在一些实施例中,磁路***320可设置于壳体310的底壁上,振动***330设置于磁路***320的正上方。壳体310在一些实施例中可呈圆形,其可包括下壳体311以及与该下壳体311相配合的上壳体(未)。下壳体311和上壳体结合在一起,界定出容置磁路***320以及振动***330的安装空间。6 to 8 show a horn device 3 in a third embodiment of the present invention. The horn device 3 may include a housing 310, a magnetic circuit system 320 arranged in the housing 310, and a magnetic circuit system 320 arranged in the housing 310 and The vibration system 330 moves under the action of the magnetic circuit system 320. In some embodiments, the magnetic circuit system 320 may be disposed on the bottom wall of the housing 310, and the vibration system 330 is disposed directly above the magnetic circuit system 320. The housing 310 may have a circular shape in some embodiments, and it may include a lower housing 311 and an upper housing (not) matched with the lower housing 311. The lower casing 311 and the upper casing are combined together to define an installation space for accommodating the magnetic circuit system 320 and the vibration system 330.
磁路***320在一些实施例中可包括多个电磁体321构成的阵列。每个电磁体321均呈圆柱状,这些电磁体321包括位于位于中部的中心电磁体321以及呈圆形阵列排布于该中心电磁体321周围的若干个周边电磁体321,中心电磁体321与周边电磁体321之间均形成有间隙322。每个电磁体321包括圆柱状铁芯3211以及环绕于铁芯3211侧壁上的线圈3212。中心电磁体321与周边电磁体321的极性呈上下交错排布,即中心电磁体321若上端为N极,则周边电磁体321的上端为S极。磁路***320在一些实施例中还可包括分别与这些电磁体321相连接的控制器(未图示),该控制器用来控制流经这些电磁体321的线圈3212的电流,以控制这些电磁体321的电磁场力的大小,从而可以控制喇叭装置3的灵敏度。在一些实施例中,中心电磁体321大于周边电磁体321的尺寸。The magnetic circuit system 320 may include an array of a plurality of electromagnets 321 in some embodiments. Each electromagnet 321 has a cylindrical shape. The electromagnets 321 include a central electromagnet 321 located in the middle and a number of peripheral electromagnets 321 arranged in a circular array around the central electromagnet 321. The central electromagnet 321 and A gap 322 is formed between the peripheral electromagnets 321. Each electromagnet 321 includes a cylindrical iron core 3211 and a coil 3212 surrounding the side wall of the iron core 3211. The polarities of the central electromagnet 321 and the peripheral electromagnets 321 are alternately arranged up and down, that is, if the upper end of the central electromagnet 321 is an N pole, the upper end of the peripheral electromagnet 321 is an S pole. In some embodiments, the magnetic circuit system 320 may further include a controller (not shown) respectively connected to the electromagnets 321. The controller is used to control the current flowing through the coils 3212 of the electromagnets 321 to control the electromagnets. The size of the electromagnetic field force of the body 321 can control the sensitivity of the horn device 3. In some embodiments, the central electromagnet 321 is larger than the size of the peripheral electromagnet 321.
振动***330在一些实施例中包括水平布置于磁路***220上方的平面型振膜331以及结合于该振膜331表面上的平面型驱动线圈332,该驱动线圈332可采用导线呈螺旋形缠绕而成,并可采用粘接等方式结合于振膜331的下表面和/或上表面。驱动线圈332在一些实施例中可呈圆环状,并与中心电磁体321与周边电磁体321之间的间隙322对应设置。工作过程中,根据左手法则,驱动线圈332通电后,会在磁路***320的间隙322的正上方的水平磁场内受到向上或者向下的力,从而产生运动。In some embodiments, the vibration system 330 includes a planar diaphragm 331 horizontally arranged above the magnetic circuit system 220 and a planar drive coil 332 combined on the surface of the diaphragm 331. The drive coil 332 can be spirally wound with a wire. It can be bonded to the lower surface and/or upper surface of the diaphragm 331 by means of bonding or the like. In some embodiments, the driving coil 332 may have a circular ring shape and is arranged corresponding to the gap 322 between the central electromagnet 321 and the peripheral electromagnet 321. In the working process, according to the left-hand rule, after the driving coil 332 is energized, it will receive an upward or downward force in the horizontal magnetic field directly above the gap 322 of the magnetic circuit system 320, thereby generating movement.
图9及图10示出了本发明第四实施例中的喇叭装置4,该喇叭装置4可包括壳体410、设置于壳体410内的磁路***420以及设置于壳体410内并可在磁路***420的作用下运动的振动***430。在一些实施例中,磁路***420可设置于壳体410的底壁上,振动***430设置于磁路***420的正上方。壳体410在一些实施例中可呈矩形,其可包括下壳体411以及与该下壳体411相配合的上壳体412。下壳体411和上壳体412结合在一起,界定出容置磁路***420以及振动***430的安装空间。9 and 10 show the horn device 4 in the fourth embodiment of the present invention. The horn device 4 may include a housing 410, a magnetic circuit system 420 arranged in the housing 410, and a magnetic circuit system 420 arranged in the housing 410. The vibration system 430 moves under the action of the magnetic circuit system 420. In some embodiments, the magnetic circuit system 420 may be disposed on the bottom wall of the housing 410, and the vibration system 430 is disposed directly above the magnetic circuit system 420. The housing 410 may be rectangular in some embodiments, and it may include a lower housing 411 and an upper housing 412 matched with the lower housing 411. The lower housing 411 and the upper housing 412 are combined together to define an installation space for accommodating the magnetic circuit system 420 and the vibration system 430.
磁路***420在一些实施例中可包括多个电磁体421构成的阵列。每个电磁体421均呈长条状,这些电磁体421包括位于位于中部的中心电磁体421、平行间隔布置于中心电磁体421两相对侧的侧部电磁体421以及间隔且垂直分布于中心电磁体421两端的端部电磁体421,中心电磁体421与侧部电磁体421和端部电磁体421之间均形成有间隙422。每个电磁体421包括长条状铁芯4211以及环绕于铁芯4211侧壁上的线圈4212。中心电磁体421与侧部电磁体421和端部电磁体421的极性呈上下交错排布,即中心电磁体421若上端为N极,则侧部电磁体421和端部电磁体421的上端为S极。磁路***420在一些实施例中还可包括分别与这些电磁体421相连接的控制器(未图示),该控制器用来控制流经这些电磁体421的线圈4212的电流,以控制这些电磁体421的电磁场力的大小,从而可以控制喇叭装置4的灵敏度。The magnetic circuit system 420 may include an array of a plurality of electromagnets 421 in some embodiments. Each electromagnet 421 is elongated. These electromagnets 421 include a central electromagnet 421 located in the middle, side electromagnets 421 arranged in parallel and spaced apart on opposite sides of the central electromagnet 421, and spaced and perpendicularly distributed in the central electromagnet. A gap 422 is formed between the end electromagnets 421 at both ends of the body 421, the center electromagnet 421 and the side electromagnets 421 and the end electromagnets 421. Each electromagnet 421 includes an elongated iron core 4211 and a coil 4212 surrounding the side wall of the iron core 4211. The polarities of the center electromagnet 421 and the side electromagnets 421 and the end electromagnets 421 are arranged in a staggered manner, that is, if the upper end of the center electromagnet 421 is N pole, the upper ends of the side electromagnets 421 and the end electromagnets 421 It is S pole. In some embodiments, the magnetic circuit system 420 may further include controllers (not shown) respectively connected to the electromagnets 421. The controllers are used to control the current flowing through the coils 4212 of the electromagnets 421 to control the electromagnets. The size of the electromagnetic field force of the body 421 can thereby control the sensitivity of the horn device 4.
振动***430在一些实施例中包括水平布置于磁路***420上方的平面型振膜431以及结合于该振膜431表面上的平面型驱动线圈432,该驱动线圈432可采用导线呈螺旋形缠绕而成,并可采用粘接等方式结合于振膜431的下表面和/或上表面。驱动线圈432在一些实施例中可呈跑道环型,并与中心电磁体421与侧部电磁体421和端部电磁体421之间的间隙422对应设置。工作过程中,根据左手法则,驱动线圈432通电后,会在磁路***420的间隙422的正上方的水平磁场内受到向上或者向下的力,从而产生运动。In some embodiments, the vibration system 430 includes a planar diaphragm 431 horizontally arranged above the magnetic circuit system 420 and a planar drive coil 432 combined on the surface of the diaphragm 431. The drive coil 432 can be spirally wound with a wire. It can be bonded to the lower surface and/or upper surface of the diaphragm 431 by means of bonding or the like. The driving coil 432 may have a racetrack loop shape in some embodiments, and is arranged corresponding to the gap 422 between the center electromagnet 421 and the side electromagnets 421 and the end electromagnets 421. During the working process, according to the left-hand rule, after the driving coil 432 is energized, it will receive an upward or downward force in the horizontal magnetic field directly above the gap 422 of the magnetic circuit system 420, thereby generating movement.
图11及图12示出了本发明第五实施例中的喇叭装置5,该喇叭装置5可包括壳体510、设置于壳体510内的磁路***520以及设置于壳体510内并可在磁路***520的作用下运动的振动***530。在一些实施例中,磁路***520可设置于壳体510的底壁上,振动***530设置于磁路***520的正上方。壳体510在一些实施例中可呈矩形,其可包括下壳体511以及与该下壳体511相配合的上壳体。下壳体511和上壳体结合在一起,界定出容置磁路***520以及振动***530的安装空间。Figures 11 and 12 show a horn device 5 in a fifth embodiment of the present invention. The horn device 5 may include a housing 510, a magnetic circuit system 520 arranged in the housing 510, and a magnetic circuit system 520 arranged in the housing 510. The vibration system 530 moves under the action of the magnetic circuit system 520. In some embodiments, the magnetic circuit system 520 may be disposed on the bottom wall of the housing 510, and the vibration system 530 is disposed directly above the magnetic circuit system 520. The housing 510 may be rectangular in some embodiments, and it may include a lower housing 511 and an upper housing matched with the lower housing 511. The lower housing 511 and the upper housing are combined together to define an installation space for accommodating the magnetic circuit system 520 and the vibration system 530.
磁路***520在一些实施例中可包括多个电磁体521构成的阵列。每个电磁体521均呈长条状,这些电磁体521呈平行间隔排列,相邻电磁体521之间均形成有间隙522。每个电磁体521包括长条状铁芯5211以及环绕于铁芯5211侧壁上的线圈5212。相邻电磁体521的极性呈上下交错排布,即一个电磁体521若上端为N极,则其相邻电磁体521的上端为S极。磁路***520在一些实施例中还可包括分别与这些电磁体521相连接的控制器(未图示),该控制器用来控制流经这些电磁体521的线圈5212的电流,以控制这些电磁体521的电磁场力的大小,从而可以控制喇叭装置5的灵敏度。磁路***520在一些实施例中可包括多个环形华司523,这些华司523分别覆盖在这些电磁体521的线圈5212顶部,且形状和尺寸与相应的线圈5212相适配。The magnetic circuit system 520 may include an array of a plurality of electromagnets 521 in some embodiments. Each electromagnet 521 is elongated, and the electromagnets 521 are arranged in parallel and spaced apart, and a gap 522 is formed between adjacent electromagnets 521. Each electromagnet 521 includes an elongated iron core 5211 and a coil 5212 surrounding the side wall of the iron core 5211. The polarities of the adjacent electromagnets 521 are staggered up and down, that is, if the upper end of an electromagnet 521 is the N pole, the upper end of the adjacent electromagnet 521 is the S pole. In some embodiments, the magnetic circuit system 520 may further include controllers (not shown) respectively connected to the electromagnets 521. The controllers are used to control the current flowing through the coils 5212 of the electromagnets 521 to control the electromagnets. The size of the electromagnetic field force of the body 521 can control the sensitivity of the horn device 5. The magnetic circuit system 520 may include a plurality of annular washers 523 in some embodiments, and the washers 523 respectively cover the tops of the coils 5212 of the electromagnets 521, and the shapes and sizes are adapted to the corresponding coils 5212.
振动***530在一些实施例中包括水平布置于磁路***520上方的平面型振膜(未图示)以及结合于该振膜表面上的平面型驱动线圈532,该驱动线圈532可采用导线呈螺旋形缠绕而成,并可采用粘接等方式结合于振膜的下表面和/或上表面。驱动线圈532在一些实施例中可呈S型,其包括若干个平直段5321,这些平直段5321分别这些间隙522对应设置。工作过程中,根据左手法则,驱动线圈532通电后,会在磁路***520的间隙522的正上方的水平磁场内受到向上或者向下的力,从而产生运动。In some embodiments, the vibration system 530 includes a planar diaphragm (not shown) horizontally arranged above the magnetic circuit system 520 and a planar drive coil 532 combined on the surface of the diaphragm. The drive coil 532 can be in the form of a wire. It is spirally wound, and can be bonded to the lower surface and/or upper surface of the diaphragm by means such as bonding. The driving coil 532 may be S-shaped in some embodiments, and it includes a plurality of straight sections 5321, and the straight sections 5321 are arranged corresponding to the gaps 522 respectively. During the working process, according to the left-hand rule, after the driving coil 532 is energized, it will receive an upward or downward force in the horizontal magnetic field directly above the gap 522 of the magnetic circuit system 520, thereby generating movement.
图13示出了本发明第六实施例中的喇叭装置6,该喇叭装置6可包括壳体610、设置于壳体610内的磁路***620以及设置于壳体610内并可在磁路***620的作用下运动的振动***(未图示)。在一些实施例中,磁路***620可设置于壳体610的底壁上,振动***设置于磁路***620的正上方。壳体610在一些实施例中可呈矩形,其可包括下壳体611以及与该下壳体611相配合的上壳体。下壳体611和上壳体结合在一起,界定出容置磁路***620以及振动***的安装空间。13 shows the horn device 6 in the sixth embodiment of the present invention. The horn device 6 may include a housing 610, a magnetic circuit system 620 arranged in the housing 610, and a magnetic circuit system 620 arranged in the housing 610 and capable of being connected to the magnetic circuit. A vibration system (not shown) that moves under the action of the system 620. In some embodiments, the magnetic circuit system 620 may be disposed on the bottom wall of the housing 610, and the vibration system is disposed directly above the magnetic circuit system 620. The housing 610 may be rectangular in some embodiments, and it may include a lower housing 611 and an upper housing matched with the lower housing 611. The lower casing 611 and the upper casing are combined together to define an installation space for accommodating the magnetic circuit system 620 and the vibration system.
磁路***620在一些实施例中可包括一个电磁体621以及两个永磁体624。电磁体621和永磁体624均呈长条状,该两个永磁体624分别设置于该电磁体621的两相对侧,且呈平行间隔排列。永磁体624和电磁体621之间形成有间隙622。电磁体621包括长条状铁芯6211以及环绕于铁芯6211侧壁上的线圈6212。电磁体621和永磁体624的极性呈上下交错排布,即电磁体621若上端为N极,则永磁体624的上端为S极。磁路***620在一些实施例中还可包括与电磁体621相连接的控制器(未图示),该控制器用来控制流经这些电磁体621的线圈6212的电流,以控制电磁体621的电磁场力的大小,从而可以控制喇叭装置6的灵敏度。The magnetic circuit system 620 may include one electromagnet 621 and two permanent magnets 624 in some embodiments. The electromagnet 621 and the permanent magnet 624 are both elongated, and the two permanent magnets 624 are respectively arranged on two opposite sides of the electromagnet 621 and arranged in parallel and spaced apart. A gap 622 is formed between the permanent magnet 624 and the electromagnet 621. The electromagnet 621 includes an elongated iron core 6211 and a coil 6212 surrounding the side wall of the iron core 6211. The polarities of the electromagnet 621 and the permanent magnet 624 are alternately arranged up and down, that is, if the upper end of the electromagnet 621 is an N pole, the upper end of the permanent magnet 624 is an S pole. In some embodiments, the magnetic circuit system 620 may also include a controller (not shown) connected to the electromagnets 621. The controller is used to control the current flowing through the coils 6212 of the electromagnets 621 to control the electromagnets 621. The magnitude of the electromagnetic field force can thereby control the sensitivity of the horn device 6.
图14及图15示出了本发明第七实施例中的喇叭装置7,该喇叭装置7可包括壳体710、设置于壳体710内的磁路***720以及设置于壳体710内并可在磁路***720的作用下运动的振动***730。在一些实施例中,磁路***720可设置于壳体710的底壁上,振动***730设置于磁路***720的正上方。壳体710在一些实施例中可呈矩形,其可包括下壳体711以及与该下壳体711相配合的上壳体712。下壳体711和上壳体712结合在一起,界定出容置磁路***720以及振动***730的安装空间。Figures 14 and 15 show a horn device 7 in a seventh embodiment of the present invention. The horn device 7 may include a housing 710, a magnetic circuit system 720 arranged in the housing 710, and a magnetic circuit system 720 arranged in the housing 710. The vibration system 730 moves under the action of the magnetic circuit system 720. In some embodiments, the magnetic circuit system 720 may be disposed on the bottom wall of the housing 710, and the vibration system 730 is disposed directly above the magnetic circuit system 720. The housing 710 may be rectangular in some embodiments, and it may include a lower housing 711 and an upper housing 712 matched with the lower housing 711. The lower housing 711 and the upper housing 712 are combined together to define an installation space for accommodating the magnetic circuit system 720 and the vibration system 730.
磁路***720在一些实施例中可包括一个电磁体721以及两个永磁体724。电磁体721和永磁体724均呈长条状,该两个永磁体724分别设置于该电磁体721的两相对侧,且呈平行间隔排列。永磁体724和电磁体721之间形成有间隙722。电磁体721包括长条状铁芯7211以及环绕于铁芯7211侧壁上的线圈7212。电磁体721和永磁体724的极性呈上下交错排布,即电磁体721若上端为N极,则永磁体724的上端为S极。磁路***720在一些实施例中还可包括与电磁体721相连接的控制器(未图示),该控制器用来控制流经这些电磁体721的线圈7212的电流,以控制电磁体721的电磁场力的大小,从而可以控制喇叭装置7的灵敏度。The magnetic circuit system 720 may include one electromagnet 721 and two permanent magnets 724 in some embodiments. Both the electromagnet 721 and the permanent magnet 724 are elongated, and the two permanent magnets 724 are respectively arranged on two opposite sides of the electromagnet 721 and arranged in parallel and spaced apart. A gap 722 is formed between the permanent magnet 724 and the electromagnet 721. The electromagnet 721 includes a long iron core 7211 and a coil 7212 surrounding the side wall of the iron core 7211. The polarities of the electromagnet 721 and the permanent magnet 724 are alternately arranged up and down, that is, if the upper end of the electromagnet 721 is an N pole, the upper end of the permanent magnet 724 is an S pole. In some embodiments, the magnetic circuit system 720 may further include a controller (not shown) connected to the electromagnets 721. The controller is used to control the current flowing through the coils 7212 of the electromagnets 721 to control the electromagnets 721. The magnitude of the electromagnetic field force can thereby control the sensitivity of the horn device 7.
一同参阅图16,磁路***720在一些实施例中还可包括设置于电磁体721的铁芯7211顶部的导磁凸起725,该导磁凸起725能够靠近或深入到振动***730的平面型驱动线圈732中部,以提升振动效率。具体地,因为驱动线圈732为环形平面线圈,其通电后产生的磁场,磁场力最强位置在驱动线圈732的中心位置,如果磁路***720的主要磁场在整个驱动线圈732下方,则无法与驱动线圈732的磁场的最大受力位置最佳的配合。因此,当在电磁体721上增加一个导磁凸起725时,并且将导磁凸起725放置在驱动线圈732的磁场的中心,该中心处驱动线圈732的受力最大,增加了振幅,提高了喇叭装置7的整体感度。在一些实施例中,该导磁凸起725并不局限于应用于电磁体721,其也可以适用于永磁体上。16 together, the magnetic circuit system 720 in some embodiments may further include a magnetically conductive protrusion 725 disposed on the top of the iron core 7211 of the electromagnet 721, and the magnetically conductive protrusion 725 can be close to or deep into the plane of the vibration system 730 Type the middle part of the drive coil 732 to improve the vibration efficiency. Specifically, because the driving coil 732 is a toroidal planar coil, the strongest position of the magnetic field force generated by the magnetic field is at the center of the driving coil 732. If the main magnetic field of the magnetic circuit system 720 is under the entire driving coil 732, it cannot interact with The maximum force position of the magnetic field of the drive coil 732 is optimally matched. Therefore, when a magnetically conductive protrusion 725 is added to the electromagnet 721, and the magnetically conductive protrusion 725 is placed in the center of the magnetic field of the driving coil 732, the force of the driving coil 732 is the largest at the center, which increases the amplitude and improves The overall sensitivity of the horn device 7 is improved. In some embodiments, the magnetically conductive protrusion 725 is not limited to being applied to the electromagnet 721, and it can also be applied to a permanent magnet.
振动***730在一些实施例中包括水平布置于磁路***720上方的平面型振膜731以及结合于该振膜731表面上的平面型驱动线圈732,该驱动线圈732可采用导线呈螺旋形缠绕而成,并可采用粘接等方式结合于振膜731的下表面和/或上表面。驱动线圈732在一些实施例中可呈跑道环型,其包括两相对的平直段7321及介于该两个平直段7321之间的透空部7320,该平直段7321与间隙722对应设置。工作过程中,根据左手法则,驱动线圈732通电后,会在磁路***720的间隙722的正上方的水平磁场内受到向上或者向下的力,从而产生运动。振膜731对应透空部7320处设有朝外侧拱起的球顶型避让部7310,以形成一个导磁凸起725能伸入其中,从而让导磁凸起725能够由驱动线圈732的一侧贯穿至另一侧,引导磁路***720的磁场集中区域延伸至或靠近驱动线圈732的最大受力位置。In some embodiments, the vibration system 730 includes a planar diaphragm 731 horizontally arranged above the magnetic circuit system 720 and a planar drive coil 732 combined on the surface of the diaphragm 731. The drive coil 732 can be spirally wound with a wire. It can be bonded to the lower surface and/or upper surface of the diaphragm 731 by means of bonding or the like. In some embodiments, the driving coil 732 may be a racetrack loop, which includes two opposite straight sections 7321 and a transparent portion 7320 between the two straight sections 7321, and the straight section 7321 corresponds to the gap 722 Set up. During operation, according to the left-hand rule, after the driving coil 732 is energized, it will receive an upward or downward force in the horizontal magnetic field directly above the gap 722 of the magnetic circuit system 720, thereby generating movement. The diaphragm 731 is provided with a dome-shaped avoiding portion 7310 arched toward the outside corresponding to the hollow portion 7320 to form a magnetically conductive protrusion 725 that can extend into it, so that the magnetically conductive protrusion 725 can be driven by a drive coil 732. The side penetrates to the other side, and the magnetic field concentration area of the guiding magnetic circuit system 720 extends to or close to the maximum force position of the driving coil 732.
振膜731在一些实施例包括平面部7311以及连接于该平面部7311周缘的拱起的麦拉膜7312。振膜731经由麦拉膜7312与壳体710相连接。避让部7310形成于平面部7311中部,用于防止振膜731在振动的过程中与导磁凸起725触碰。The diaphragm 731 in some embodiments includes a flat portion 7311 and an arched Mylar diaphragm 7312 connected to the periphery of the flat portion 7311. The diaphragm 731 is connected to the housing 710 via the Mylar diaphragm 7312. The avoiding portion 7310 is formed in the middle of the flat portion 7311 to prevent the diaphragm 731 from contacting the magnetic conductive protrusion 725 during the vibration.
可以理解地,上述各技术特征可以任意组合使用而不受限制。It can be understood that the above technical features can be used in any combination without limitation.
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。The above are only the embodiments of the present invention, which do not limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the description and drawings of the present invention, or directly or indirectly applied to other related technologies In the same way, all fields are included in the scope of patent protection of the present invention.
Claims (10)
- 一种喇叭装置,包括壳体以及设置于所述壳体内的磁路***和振动***,所述振动***包括可在所述磁路***的磁场作用下产生机械运动的平面型驱动线圈以及受所述平面型驱动线圈驱动的振膜,其特征在于,所述磁路***包括朝向所述平面型驱动线圈伸出的导磁凸起,以引导所述磁路***的磁场集中区域延伸至或靠近所述平面型驱动线圈的最大受力位置。A horn device includes a housing and a magnetic circuit system and a vibration system arranged in the housing. The vibration system includes a planar drive coil that can generate mechanical motion under the action of the magnetic field of the magnetic circuit system and a receiving device. The diaphragm driven by the planar drive coil is characterized in that the magnetic circuit system includes a magnetically conductive protrusion extending toward the planar drive coil to guide the magnetic field concentration area of the magnetic circuit system to extend to or close to The maximum force position of the planar drive coil.
- 根据权利要求1所述的喇叭装置,其特征在于,所述导磁凸起由所述平面型驱动线圈靠近所述磁路***的一侧贯穿至远离所述磁路***的一侧。The horn device according to claim 1, wherein the magnetically conductive protrusion penetrates from a side of the planar drive coil close to the magnetic circuit system to a side away from the magnetic circuit system.
- 根据权利要求2所述的喇叭装置,其特征在于,所述振膜包括朝远离所述磁路***方向拱起的避让部;所述振膜包括供所述平面型驱动线圈设置的平面部,所述避让部形成于该平面部上。4. The horn device according to claim 2, wherein the diaphragm includes an escape portion arched away from the magnetic circuit system; the diaphragm includes a flat portion for the flat drive coil, The escape portion is formed on the flat surface.
- 根据权利要求3所述的喇叭装置,其特征在于,所述平面型驱动线圈呈环形,其包括位于中部的透空部,所述导磁凸起经由该透空部贯穿该平面型驱动线圈,所述避让部与该透空部对应。The horn device according to claim 3, wherein the planar drive coil has a ring shape, and includes a hollow portion in the middle, and the magnetically conductive protrusion penetrates the planar drive coil through the hollow portion, The avoiding part corresponds to the transparent part.
- 根据权利要求1至4任一项所述的喇叭装置,其特征在于,所述磁路***包括位于中部的电磁体,所述导磁凸起设置于该电磁体的顶部。The horn device according to any one of claims 1 to 4, wherein the magnetic circuit system comprises an electromagnet located in the middle, and the magnetic conductive protrusion is arranged on the top of the electromagnet.
- 根据权利要求5所述的喇叭装置,其特征在于,所述电磁体包括铁芯以及环绕于该铁芯侧壁上的线圈,所述导磁凸起设置于该铁芯的顶部。The horn device according to claim 5, wherein the electromagnet comprises an iron core and a coil surrounding the side wall of the iron core, and the magnetic conductive protrusion is arranged on the top of the iron core.
- 根据权利要求5所述的喇叭装置,其特征在于,所述磁路***包括两个永磁体,所述两个永磁体分别布置于所述电磁体的两相对侧,与所述电磁体的极性呈交错布置。The horn device according to claim 5, wherein the magnetic circuit system comprises two permanent magnets, and the two permanent magnets are respectively arranged on two opposite sides of the electromagnet, and are opposite to the poles of the electromagnet. The sex is staggered.
- 根据权利要求7所述的喇叭装置,其特征在于,所述电磁体和所述两个永磁体均呈长条状,所述两个永磁体分别呈平行间隔布置于所述永磁体的两相对侧。The horn device according to claim 7, wherein the electromagnet and the two permanent magnets are both elongated, and the two permanent magnets are respectively arranged at two opposite sides of the permanent magnet in parallel and spaced apart. side.
- 根据权利要求5所述的喇叭装置,其特征在于,所述磁路***包括与所述电磁体电性连接的控制器,以控制流经所述电磁体中的电流的大小。The horn device according to claim 5, wherein the magnetic circuit system comprises a controller electrically connected to the electromagnet to control the magnitude of the current flowing through the electromagnet.
- 根据权利要求1至4任一项所述的喇叭装置,其特征在于,所述平面型驱动线圈通过印刷或粘接的方式结合于所述振膜上。The horn device according to any one of claims 1 to 4, wherein the planar drive coil is connected to the diaphragm by printing or bonding.
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PCT/CN2019/107965 WO2021056294A1 (en) | 2019-09-25 | 2019-09-25 | Horn apparatus |
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WO2019151232A1 (en) * | 2018-02-01 | 2019-08-08 | アダマンド並木精密宝石株式会社 | Linear vibration actuator |
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CN106658315A (en) * | 2017-03-18 | 2017-05-10 | 歌尔股份有限公司 | Moving-magnetic type loudspeaker |
CN106714052A (en) * | 2017-03-18 | 2017-05-24 | 歌尔股份有限公司 | Moving-magnet type loudspeaker |
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