WO2019205490A1 - 一种动铁受话器 - Google Patents

一种动铁受话器 Download PDF

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Publication number
WO2019205490A1
WO2019205490A1 PCT/CN2018/108347 CN2018108347W WO2019205490A1 WO 2019205490 A1 WO2019205490 A1 WO 2019205490A1 CN 2018108347 W CN2018108347 W CN 2018108347W WO 2019205490 A1 WO2019205490 A1 WO 2019205490A1
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WO
WIPO (PCT)
Prior art keywords
housing
side wall
fixed
sidewalls
plate body
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PCT/CN2018/108347
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English (en)
French (fr)
Inventor
陈斌
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深圳倍声声学技术有限公司
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Application filed by 深圳倍声声学技术有限公司 filed Critical 深圳倍声声学技术有限公司
Publication of WO2019205490A1 publication Critical patent/WO2019205490A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/04—Microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2410/00—Microphones

Definitions

  • the present application relates to the field of receiver technologies, and in particular, to a moving iron receiver.
  • the moving iron receiver also known as the moving iron horn, is a sounding component. It is designed on the basis of the reed speaker, and it uses high-precision micro-machining technology. Through the miniaturization of parts and the adoption of new materials, it maintains its high acoustic-electric conversion rate and overcomes the frequency and distortion of acoustic-electric conversion. Big deficiency. Due to its small size, low power consumption and high output, it is widely used in hearing aids, covert communication, high-fidelity headphones and other fields.
  • the existing moving iron receiver mainly comprises a housing, a motor assembly and a diaphragm assembly, and the motor assembly generally comprises a neodymium iron in a closed loop, two magnets received and fixed in the neodymium iron.
  • the inventors found in the process of implementing the embodiments of the present application that the existing ferroniobium is closed in a ring shape, thereby forming an annular magnetic circuit.
  • the closed annular ferroniobium is produced, the slab-shaped samarium iron raw material is generally cut by a slow wire-cutting process.
  • the ferroniobium raw material in the middle of the closed annular ferroniobium after cutting cannot continue to be closed.
  • the manufacture of the ferroniobium is waste, so that the manufacturing cost of the ferroniobium is high, and the manufacturing cost of the moving iron receiver is high.
  • the present application provides a moving iron receiver that is relatively low in manufacturing cost.
  • the present application provides a moving iron receiver comprising: a motor assembly and a housing, the motor assembly being received in the housing; wherein the motor assembly comprises:
  • the ferritic iron is respectively fixed on the two side walls of the casing, the ferroniobium is enclosed with the casing to form an accommodating space, and the ferroniobium and the casing form an annular magnetic circuit ;
  • a first magnet is received in the accommodating space and fixed on the housing;
  • the second magnet is received in the accommodating space and fixed on the stellite.
  • the neodymium iron includes a base, an extending portion extending from opposite sides of the base, and a fixing portion extending from the extending portion;
  • the housing includes a first housing and a second housing, the first housing includes a first body, two first side walls extending from opposite sides of the first body, and the two Two second side walls of the first side wall, the fixing portion being fixed to the first side wall;
  • the second housing includes a second body, two third sidewalls extending from opposite sides of the second body, and two fourth sidewalls connecting the two third sidewalls, the first One of a side wall and the third side wall is provided with a groove that receives the fixing portion.
  • the ferritic iron, the two first sidewalls and the first body are formed to form the accommodating space, and the first magnet is received in the accommodating space and is fixed to the first The second magnet is received in the accommodating space and fixed on the base.
  • the stellite iron is in the form of a flat plate, and includes a fixing portion on two sides of the stellite iron, the housing includes a first housing and a second housing, and the first housing includes a first body. Two first sidewalls extending from opposite sides of the first body and two second sidewalls connecting the two first sidewalls, the fixing portion being fixed to the first sidewall;
  • the second housing includes a second body, two third sidewalls extending from opposite sides of the second body, and two fourth sidewalls connecting the two third sidewalls, the first One of a side wall and the third side wall is provided with a groove that receives the fixing portion.
  • the neodymium iron has a flat shape
  • the housing includes a first housing
  • the first housing includes a first body, and two first sidewalls extending from opposite sides of the first body And two second sidewalls connecting the first sidewalls, the neodymium iron being fixed to the two first sidewalls and located between the two first sidewalls.
  • the housing includes: a first plate body;
  • An annular plate body, the first plate body and the second plate body are respectively located on opposite sides of the annular plate body, and the first plate body, the second plate body and the annular plate body are enclosed to form a shelter The housing space of the motor assembly.
  • the annular plate body includes a first sidewall, and a second sidewall and a third sidewall extend from opposite sides of the first sidewall, and the third sidewall extends from the second sidewall to the third sidewall
  • the sidewall extends a fourth sidewall, and a fifth sidewall extends from the third sidewall toward the second sidewall, and one of the fourth sidewall and the fifth sidewall is provided with a bump
  • the other is provided with a notch, and the protrusion is received in the notch to fix the fourth side wall and the fifth side wall.
  • the neodymium iron includes a base, an extending portion extending from opposite sides of the base, and a fixing portion extending from the extending portion;
  • the second side wall and the third side wall are provided with a groove, and the fixing portion is received and fixed on the groove.
  • the stellite iron is in the form of a flat plate, and includes a fixing portion on two sides of the stellite iron, wherein the second side wall and the third side wall are provided with a groove, and the fixing portion is received and fixed On the groove.
  • the neodymium iron has a flat shape, and the neodymium iron is fixed to the second sidewall and the third sidewall and located between the second sidewall and the third sidewall.
  • the neodymium iron in the moving iron receiver provided by the present application is received and fixed on the casing, and the neodymium iron and the casing form a housing for the first magnet and the first
  • the accommodating space of the two magnets forms an annular magnetic circuit for the first magnet and the second magnet, which reduces the manufacturing cost of the ferroniobium, thereby reducing the manufacturing cost of the moving iron receiver.
  • FIG. 1 is an exploded perspective view of a moving iron receiver provided in Embodiment 1 of the present application;
  • FIG. 2 is an exploded perspective view of the housing of the moving iron receiver provided in the first embodiment
  • Figure 3 is a perspective view of the motor assembly of the moving iron receiver provided in the first embodiment
  • Figure 4 is a perspective view of the ferroniobium of the moving iron receiver provided in the first embodiment
  • Figure 5 is a perspective cross-sectional view of the moving iron receiver provided in the first embodiment
  • Figure 6 is a perspective view of the coil of the moving iron receiver provided in the first embodiment
  • Figure 7 is a perspective view of the reed of the moving iron receiver provided in the first embodiment
  • Figure 8 is an exploded perspective view showing the housing of the moving iron receiver provided in the second embodiment of the present application.
  • Fig. 9 is a schematic view showing the annular plate body of the moving iron receiver provided in the second embodiment in a flat state.
  • Moving iron receiver 100 Housing 11, 21 First housing 111 First body 1110 First side wall 1111 Second side wall 1112 Grooves 1113, 2139 Through slot 1114 Second housing 112 Second body 1120 Third side wall 1121 Fourth side wall 1122 Containing space 113, 214 Motor assembly 12 ⁇ 121 Base 1210 Extension 1211 Fixing part 1212 First magnet 122 Second magnet 123 Coil 124 Through hole 1240 Pin 125 Reed 126 Holding unit 1260 Vibration unit 1261 Connection portion 1262 Diaphragm assembly 13 Connecting rod 14 Circuit board 15 Housing space 16 First plate body 211 Second plate 212 Annular plate body 213 First side wall 2131 Second side wall 2132 Third side wall 2133 Fourth side wall 2134 Fifth side wall 2135 Bump 2136 Gap 2137 Missing slot 2138
  • a moving iron receiver 100 is provided in the first embodiment of the present application.
  • the moving iron receiver 100 mainly includes a housing 11 , a motor assembly 12 , a diaphragm assembly 13 , a connecting rod 14 and a circuit board 15 .
  • the housing 11 houses the motor assembly 12, the diaphragm assembly 13, and the connecting rod 14.
  • the circuit board 15 is attached and fixed to the outside of the housing 11.
  • the housing 11 includes a first housing 111 and a second housing 112, the first housing 111 including a first body 1110, from both sides of the first body 1110.
  • Two first sidewalls 1111 extending opposite to the second housing 112 and two second sidewalls 1112 connecting the two first sidewalls 1111 from the two first sidewalls 1111
  • the surface is recessed downwardly with a groove 1113, and one of the second side walls 1112 is provided with a through groove 1114.
  • the second housing 112 includes a second body 1120, two third sidewalls 1121 extending from opposite sides of the second body 1120 toward the first housing 111, and connecting the two third sides
  • the second side wall 1122 of the wall 1121, the second housing 112 and the first housing 111 are engaged with each other, that is, the first side wall 1111 and the third side wall 1121 are abutted.
  • the second side wall 1112 and the fourth side wall 1122 abut each other to form a receiving space 113 for housing the motor assembly 12 and the diaphragm assembly 13.
  • the motor assembly 12 includes a neodymium iron 121, a first magnet 122, a second magnet 123, a reed 126, a coil 124, and a pin 125.
  • the neodymium iron 121 includes a flat base portion 1210, and two extending portions 1211 extending from the two sides of the base portion 1210 toward the second body 1120, respectively.
  • the fixing portion 1212 extends in a direction parallel to the base portion 1210 and away from the base portion 1210, and the fixing portion 1212 is received in the groove 1113 and fixed on the groove 1113.
  • the ferritic iron 121, the two first side walls 1111 and the first body 1110 are enclosed to form an accommodating space 16, and the ferroniob 121, the two first side walls 1111 and the first body 1110 are both Made of iron-nickel alloy, it forms a closed loop magnetic circuit.
  • the first magnets 122 and the second magnets 123 are identical in structure, and each has a flat shape.
  • the first magnets 122 are received in the accommodating space 16 and are fixed on the first body 1110.
  • the two magnets 123 are received in the accommodating space 16 and fixed to the first base portion 1210.
  • the first magnet 122 and the second magnet 123 are both permanent magnets, and a constant magnetic field is formed between the first magnet 122 and the second magnet 123, and the magnetic field passes through the neodymium iron 121,
  • the closed first magnetic circuit formed by the two first side walls 1111 and the first body 1110 is reinforced.
  • the coil 124 has a ring structure, and a through hole 1240 is disposed in the middle of the coil 124.
  • the coil 124 is a carrier of current.
  • the two pins 125 are disposed on the coil 124 and electrically connected to the coil 124.
  • the coil 124 is connected to the external wiring through the two pins 125.
  • the pin 125 is an elongated columnar structure made of a highly conductive material such as gold and gold alloys, silver and silver alloys, copper and copper alloys.
  • the reed 126 includes a flat-shaped holding portion 1260, a flat vibrating portion 1261, and an arc-shaped connecting portion 1262 that connects the holding portion 1260 and the vibrating portion 1261.
  • the vibrating portion 1261 passes through the through hole 1240 of the coil 124 and is partially received in the accommodating space 16 .
  • the holding portion 1260 is attached and fixed to the base portion 1210 .
  • the reed 126 is made of a material having a high magnetic permeability, such as an alloy material composed of nickel (Ni, Nickel), niobium (Nb, Niobium), carbon (C, carbon), and iron (Fe, Ferrum).
  • the diaphragm assembly 13 is located above the holding portion 1260 for connecting the vibrating portion 1261 of the reed 126 and the diaphragm assembly 13, and the diaphragm assembly 13 is The vibrating portion 1261 reciprocates to emit sound.
  • the circuit board 15 is fixed to the outer side of the second side wall 1112 provided with the through slot 1114, and the circuit board 15 covers the through slot 1114 to be connected to the pin 125.
  • the magnitude of the current fed in the coil 124 is controlled by receiving an external command, thereby controlling the magnitude of the sound emitted by the moving iron receiver 100.
  • the first magnet 122 is first fixed to the first body 1110, and the circuit board 15 is fixed to the second side wall 1112 provided with the through groove 1114.
  • the diaphragm assembly 13 is passed through the connecting rod 14 is connected to the vibrating portion of the reed; the lead 125 of the motor assembly 12 is passed through the through slot 1114 of the second side wall 1112, thereby realizing the pin 125 and the circuit board 15 Connecting and fixing the fixing portion 1212 of the neodymium iron 121 to the groove 1113 of the first side wall 1111
  • the vibrating portion 1261 of the reed 126 When no audio current flows through the coil 124, the vibrating portion 1261 of the reed 126 is in an equilibrium state in a constant magnetic field provided by the first magnet 122 and the second magnet 123; when the alternating current is passed through the audio in the coil 124, the coil 124 changes The current generates a varying Lorentz force, and the vibrating portion 1261 reciprocates under the driving of the Lorentz force, and the diaphragm 14 is driven by the connecting rod 14 to generate an acoustic wave, thereby completing the conversion of the electrical signal to the acoustic signal.
  • the groove 1113 can also be disposed on the third sidewall 1121.
  • the neodymium iron 121 has a flat shape, that is, the base portion 1210, the extending portion 1211, and the fixing portion 1212 are parallel and coplanar, and the fixing portion 1212 is received and It is fixed on the groove 1113.
  • the neodymium iron 121 has a flat shape, that is, the base portion 1210, the extending portion 1211, and the fixing portion 1212 are parallel and coplanar, and the neodymium iron 121 is located at the Between the two first side walls 1111, the fixing portion 1212 is fixed on the two first side walls 1111. At this time, the first side wall 1111 or the third side wall 1121 is not concave. Slot 1113. At this time, the first side wall 1111 and the fixing portion 1212 can achieve a fixed connection between the neodymium iron 121 and the first housing 111 by bonding and laser welding.
  • the neodymium iron 121, the two first sidewalls 1111 and the first body 1110 provided in the first embodiment of the present application form a closed loop magnetic conductive loop, which has a simple structure and reduces the structure.
  • the manufacturing cost of the neodymium iron 121 further reduces the manufacturing cost of the moving iron receiver 100. Since the neodymium iron 121 has an open structure, the assembly efficiency of the moving iron receiver 100 is improved; The overall height of the iron receiver 100 is described to facilitate the development trend of the thinning of the moving iron receiver 100.
  • the housing 21 of the moving iron receiver provided by the embodiment of the present application, wherein the motor assembly 12, the diaphragm assembly 13, the connecting rod 14 and the circuit board 15 are the same as in the first embodiment. The same, no longer repeat here.
  • the housing 21 includes a first plate body 211, a second plate body 212, and an annular plate body 213.
  • the first plate body 211 and the second plate body 212 are respectively located on opposite sides of the annular plate body 213.
  • the first plate body 211, the second plate body 212, and the annular plate body 213 constitute a receiving space 214, and the motor assembly 12 and the diaphragm unit 13 are received in the receiving space 214.
  • the first plate body 211 has a flat shape, and the first magnet 122 is welded and fixed to the first plate body 211.
  • the annular plate body 213 is annular, and includes a first sidewall 2131, a second sidewall 2132, a third sidewall 2133, a fourth sidewall 2134, and a fifth sidewall 2135.
  • the second sidewall 2132 and the The third sidewall 2133 extends from opposite sides of the first sidewall 2131, and the fourth sidewall 2134 extends from the second sidewall 2132 to the third sidewall 2133.
  • the fifth sidewall 2135 extends from the third sidewall 2133 toward the second sidewall 2132.
  • the fourth side wall 2134 is provided with a protrusion 2136, and the fifth side wall 2135 is provided with a notch 2137.
  • the protrusion 2136 is received in the notch 2137, so that the fourth side wall 2134 and the first side The five side walls 2135 are snap-fitted.
  • the bump 2136 is disposed on the fifth sidewall 2135
  • the notch 2137 is disposed on the fourth sidewall 2134
  • the bump 2136 and The number of the gaps 2137 is equivalently varied, for example, two, three, four or other quantities greater than one.
  • the fourth sidewall 2134 and the fifth sidewall 2135 may also adopt other fixing manners, for example, the fourth sidewall 2134 and the fifth sidewall 2135. It can also be fixed by welding.
  • the second side wall 2132 and the third side wall 2133 are respectively recessed from the second plate body 212 toward the first plate body 211, and the groove 2139 is used for the shelter.
  • the fixing portion 1212 of the neodymium iron 121 is described.
  • the groove 2139 may be omitted.
  • a side of the fourth side wall 2134 and the fifth side wall 2135 adjacent to the second plate body 212 extends toward the first plate body 211 with a notch 2138, and the two pins 15 pass through the The notch 2138 extends out of the receiving space to be in contact with the circuit board 15 located outside the receiving space, thereby electrically connecting the coil 124 and the circuit board 15.
  • the annular plate body 213 is first formed by a stamping process to form a flat annular plate body preform, and then the annular plate body preform is subjected to a bending process to form four bends; Finally, the fourth side wall 2134 and the fifth side wall 2135 are engaged and fixed to form the annular plate body 213.
  • the prior art housing generally includes an upper shell and a lower shell, both of which are formed by a drawing process.
  • the first molding can be formed by a simple stamping process and a bending process.
  • the housing 21 reduces the manufacturing cost and accuracy requirements of the housing 21, thereby reducing the cost and accuracy requirements of the receiver 200.
  • the fourth sidewall 2134 and the fifth sidewall 2135 are provided with a notch 2138.
  • the motor assembly 12 is directly directed from the second plate 212 toward the first
  • the plate body 211 is assembled and fixed on the annular plate body 213, which improves the assembly efficiency of the moving iron receiver.

Abstract

本申请实施例涉及受话器领域，提供了一种动铁受话器，所述动铁受话器包括：马达组件和壳体，所述马达组件收容于所述壳体；其中，所述马达组件包括：锷铁，两端分别固定于所述壳体的两个侧壁上，所述锷铁与所述壳体合围形成容置空间,且所述锷铁与所述壳体形成环型的导磁回路；第一磁体，收容于所述容置空间且固定于所述壳体上；第二磁体，收容于所述容置空间且固定于所述锷铁上。所述锷铁与所述壳体构成一个收容所述第一磁体和所述第二磁体的容置空间，从而为所述第一磁体和所述第二磁体构成一个环形的导磁回路，降低了所述锷铁的制造成本，进而降低了所述动铁受话器的制造成本。

Description

一种动铁受话器
本申请要求于2018年4月26日提交中国专利局，申请号为2018103861547，发明名称为“一种动铁受话器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及受话器技术领域，尤其涉及一种动铁受话器。
背景技术
动铁式受话器，又称动铁喇叭，是一种发声元件。其在舌簧扬声器的基础上进行设计，发挥高精度微细加工技术，通过零件的微型化和新型材料的采用，保持了其声电转换率高的特性，并且克服了声电转换频响及失真大的不足。由于其体积小、低功耗、高输出等特点，被广泛应用于助听器、隐蔽通信、高保真耳机等领域。
现有的动铁受话器主要包括壳体、马达组件和振膜组件，所述马达组件一般包括呈封闭环形的锷铁、收容且固定于所述锷铁内的两片磁体。
发明人在实现本申请实施例的过程中发现，现有的锷铁呈封闭环形，从而形成一个环形的导磁回路。制造所述封闭环形的锷铁时，一般采用板状的锷铁原料通过慢走丝工艺切割制得，一方面，切割后的所述封闭环形的锷铁中间的锷铁原料无法继续进行封闭环形的锷铁的制造而成为废料，使得所述锷铁的制造成本较高，进而使得所述动铁受话器的制造成本较高。
发明内容
为了解决现有技术中的动铁受话器的制造成本较高的问题，本申请提供了一种制造成本较低的动铁受话器。
本申请提供了一种动铁受话器，包括：马达组件和壳体，所述马达组件收容于所述壳体；其中，所述马达组件包括：
锷铁，两端分别固定于所述壳体的两个侧壁上，所述锷铁与所述壳体合围形成容置空间，且所述锷铁与所述壳体形成环形的导磁回路；
第一磁体，收容于所述容置空间且固定于所述壳体上；
第二磁体，收容于所述容置空间且固定于所述锷铁上。
可选的，所述锷铁包括基部，自所述基部的两侧相对延伸的延伸部，自所述延伸部延伸的固定部；
所述壳体包括第一壳体和第二壳体，所述第一壳体包括第一本体，自所述第一本体的两侧相对延伸的两个第一侧壁和连接所述两个第一侧壁的两个第二侧壁，所述固定部与所述第一侧壁相固定；
所述第二壳体包括第二本体，自所述第二本体的两侧相对延伸的两个第三侧壁和连接所述两个第三侧壁的两个第四侧壁，所述第一侧壁和所述第三侧壁中的其中一个设置有凹槽，所述凹槽收容所述固定部。
可选的，所述锷铁、所述两个第一侧壁和所述第一本体合围形成所述容置空间，所述第一磁体收容于所述容置空间且固定于所述第一本体上，所述第二磁体收容于所述容置空间且固定于所述基部上。
可选的，所述锷铁呈平板状，包括位于所述锷铁两侧的固定部，所述壳体包括第一壳体和第二壳体，所述第一壳体包括第一本体，自所述第一本体的两侧相对延伸的两个第一侧壁和连接所述两个第一侧壁的两个第二侧壁，所述固定部与所述第一侧壁相固定；
所述第二壳体包括第二本体，自所述第二本体的两侧相对延伸的两个第三侧壁和连接所述两个第三侧壁的两个第四侧壁，所述第一侧壁和所述第三侧壁中的其中一个设置有凹槽，所述凹槽收容所述固定部。
可选的，所述锷铁呈平板状，所述壳体包括第一壳体，所述第一壳体包括第一本体，自所述第一本体两侧相对延伸的两个第一侧壁和连接所述第一侧壁的两个第二侧壁，所述锷铁与所述两个第一侧壁相固定且位于所述两个第一侧壁之间。
可选的，所述壳体包括：第一板体；
第二板体；
环形板体，所述第一板体和所述第二板体分别位于所述环形板体的相对两侧，所述第一板体、第二板体和所述环形板体合围形成收容所述马达组件的收容空间。
可选的，所述环形板体包括第一侧壁，自所述第一侧壁的两侧相对延伸有第二侧壁和第三侧壁，自所述第二侧壁向所述第三侧壁延伸有第四侧壁，自所述第三侧壁向所述第二侧壁延伸有第五侧壁，所述第四侧壁和所述第五侧壁中的一个设置有凸块，另一个设置有缺口，所述凸块收容于所述缺口，以使所述第四侧壁和所述第五侧壁卡合固定。
可选的，所述锷铁包括基部，自所述基部的两侧相对延伸的延伸部，自所述延伸部延伸的固定部；
所述第二侧壁和所述第三侧壁上设置有凹槽，所述固定部收容且固定于所述凹槽上。
可选的，所述锷铁呈平板状，包括位于所述锷铁两侧的固定部，所述第二侧壁和所述第三侧壁上设置有凹槽，所述固定部收容且固定于所述凹槽上。
可选的，所述锷铁呈平板状，所述锷铁与所述第二侧壁和所述第三侧壁相固定且位于所述第二侧壁和所述第三侧壁之间。
与现有技术相比，本申请所提供的动铁受话器中的锷铁收容且固定于所述壳体上，所述锷铁与所述壳体构成一个收容所述第一磁体和所述第二磁体的容置空间，从而为所述第一磁体和所述第二磁体构成一个环形的导磁回路，降低了所述锷铁的制造成本，进而降低了所述动铁受话器的制造成本。
附图说明
一个或多个实施通过与之对应的附图进行示例性说明，这些示例性 说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1是本申请实施例一提供的动铁受话器的立体分解图；
图2是实施例一提供的所述动铁受话器的壳体的立体分解图；
图3是实施例一提供的所述动铁受话器的马达组件的立体图；
图4是实施例一提供的所述动铁受话器的锷铁的立体图；
图5是实施例一提供的所述动铁受话器的立体剖视图；
图6是实施例一提供的所述动铁受话器的线圈的立体图；
图7是实施例一提供的所述动铁受话器的簧片的立体图；
图8是本申请实施例二提供的动铁受话器的壳体的立体分解图；
图9是实施例二提供的所述动铁受话器的环状板体呈平板状态的示意图。
具体实施方式的附图标号说明：
动铁受话器100 壳体11、21 第一壳体111 第一本体1110
第一侧壁1111 第二侧壁1112 凹槽1113、2139 通槽1114
第二壳体112 第二本体1120 第三侧壁1121 第四侧壁1122
收容空间113、214 马达组件12 锷铁121 基部1210
延伸部1211 固定部1212 第一磁体122 第二磁体123
线圈124 通孔1240 引脚125 簧片126
固持部1260 振动部1261 连接部1262 振膜组件13
连杆14 电路板15 容置空间16 第一板体211
第二板体212 环形板体213 第一侧壁2131 第二侧壁2132
第三侧壁2133 第四侧壁2134 第五侧壁2135 凸块2136
缺口2137 缺槽2138    
具体实施方式
为了便于理解本申请，下面结合附图和具体实施例，对本申请进行更详细的说明。需要说明的是，当元件被表述“固定于”另一个元件，它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件，它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。本说明书所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本说明书中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是用于限制本申请。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
实施例一
如图1所示，为本申请实施例一提供的动铁受话器100，所述动铁受话器100主要包括壳体11、马达组件12、振膜组件13、连杆14和电路板15，所述壳体11收容所述马达组件12、所述振膜组件13和所述连杆14，所述电路板15贴合固定于所述壳体11外侧。
如图1和图2所示，所述壳体11包括第一壳体111和第二壳体112，所述第一壳体111包括第一本体1110、自所述第一本体1110的两侧朝所述第二壳体112相对延伸的两个第一侧壁1111和连接所述两个第一侧壁1111的两个第二侧壁1112，自所述两个第一侧壁1111的上表面向下凹设有凹槽1113，所述第二侧壁1112的其中一个设置有通槽1114。
所述第二壳体112包括第二本体1120、自所述第二本体1120的两侧朝所述第一壳体111相对延伸的两个第三侧壁1121和连接所述两个第三侧壁1121的两个第四侧壁1122，所述第二壳体112和所述第一壳体111相互扣合，即所述第一侧壁1111和所述第三侧壁1121相抵接，所述第二侧壁1112和所述第四侧壁1122相抵接，从而形成收容所述马达组件12和所述振膜组件13的收容空间113。
如图3所示，所述马达组件12包括锷铁121、第一磁体122、第二磁体123、簧片126、线圈124和引脚125。
如图3至图5所示，所述锷铁121包括平板状的基部1210，自所述基部1210的两侧分别向所述第二本体1120延伸的两个延伸部1211，自每一所述延伸部1211向平行于所述基部1210且远离所述基部1210的方向分别延伸有一个固定部1212，所述固定部1212收容于所述凹槽1113且固定于所述凹槽1113上，所述锷铁121、所述两个第一侧壁1111和所述第一本体1110合围形成容置空间16，所述锷铁121、所述两个第一侧壁1111和所述第一本体1110均由铁镍合金制得，构成一个封闭环形的导磁回路。
所述第一磁体122和所述第二磁体123的结构相同，均呈平板状，所述第一磁体122收容于所述容置空间16且固定于所述第一本体1110上，所述第二磁体123收容于所述容置空间16且固定于所述第基部1210上。所述第一磁体122和所述第二磁体123均为永磁体，所述第一磁体122和所述第二磁体123之间形成恒定的磁场，所述磁场经过所述锷铁121、所述两个第一侧壁1111和所述第一本体1110构成的封闭环形的磁路而得到强化。
如图6所示，所述线圈124为环状结构，所述线圈124中间设置有通孔1240，所述线圈124是电流的载体。
如图3所示，所述两个引脚125间隔的设置于所述线圈124上且与所述线圈124电性连接，所述线圈124通过所述两个引脚125与外部接线相连接。所述引脚125为细长柱状结构，由高导电率的材料制得，譬如金及金合金、银及银合金、铜及铜合金。
如图5和图7所示，所述簧片126包括平板状的固持部1260、平板状的振动部1261及连接所述固持部1260和所述振动部1261的弧形的连接部1262，所述振动部1261穿过所述线圈124的通孔1240且部分的收容于所述容置空间16，所述固持部1260贴合固定于所述基部1210上。所述簧片126由高导磁率的材料制得，譬如由镍(Ni，Nickel)、铌 (Nb，Niobium)、碳(C，carbon)和铁(Fe，Ferrum)组成的合金材料制得。
所述振膜组件13位于所述固持部1260的上方，所述连杆14用于连接所述簧片126的振动部1261和所述振膜组件13，所述振膜组件13随着所述振动部1261的往复运动而发出声音。
所述电路板15固定于设置有通槽1114的所述第二侧壁1112的外侧，且所述电路板15盖住所述通槽1114与所述引脚125连接，所述电路板15用于接收外部指令而控制所述线圈124中馈入的电流的大小，从而控制所述动铁受话器100发出的声音的大小。
组装所述动铁受话器100时，先将所述第一磁体122固定于所述第一本体1110上，且将所述电路板15固定于所述设置有通槽1114的第二侧壁1112的外侧；将所述线圈124设置于所述锷铁121的一侧，将所述两个引脚125设置于所述线圈124上，然后将所述簧片的振动部穿过所述线圈124的通孔，通过所述固定部1212而固定于所述锷铁121的基部1210的一侧，将所述第二磁体123固定于所述基部1210的另一侧；将振膜组件13通过连杆14而与所述簧片的振动部相连接；将马达组件12的引脚125穿过所述第二侧壁1112上的通槽1114，从而实现所述引脚125与所述电路板15的连接；接着将所述锷铁121的固定部1212收容且固定于所述第一侧壁1111的凹槽1113上；最后将所述第二壳体112和所述第一壳体111进行扣合，从而完成所述动铁受话器100的组装。
当线圈124中没有音频电流通过时，簧片126的振动部1261在第一磁体122和第二磁体123提供的恒定磁场中处于平衡状态；当线圈124中通过音频交流电流时，线圈124因变化的电流产生变化的洛伦兹力，振动部1261在洛伦兹力的驱动下往复运动，通过连杆14带动振膜组件13产生声波，从而完成电信号到声信号的转化。
可以理解的是，在一些其他实施例中，所述凹槽1113也可以设置于第三侧壁1121上。
可以理解的是，在一些其他实施例中，所述锷铁121呈平板状，即所述基部1210、所述延伸部1211、所述固定部1212平行且共面，所述固定部1212收容且固定于所述凹槽1113上。
可以理解的是，在一些其他实施例中，所述锷铁121呈平板状，即所述基部1210、所述延伸部1211、所述固定部1212平行且共面，所述锷铁121位于所述两个第一侧壁1111之间，所述固定部1212固定于所述两个第一侧壁1111上，此时，所述第一侧壁1111或所述第三侧壁1121未设置凹槽1113。此时，所述第一侧壁1111和所述固定部1212可以通过粘结、镭射焊接实现所述锷铁121与所述第一壳体111之间的固定连接。
与现有技术相比，本申请实施例一提供的所述锷铁121、所述两个第一侧壁1111以及所述第一本体1110合围形成封闭环形的导磁回路，结构简单，减少了所述锷铁121的制造成本，进而减少了所述动铁受话器100的制造成本，由于所述锷铁121为开放式的结构，提高了所述动铁受话器100的组装效率；且降低了所述动铁受话器100的整体高度，有利于所述动铁受话器100薄型化的发展趋势。
实施例二
如图8和图9所示，为本申请实施例提供的动铁受话器的壳体21，其中，所述马达组件12、振膜组件13、连杆14及电路板15与实施例一中的相同，在此不再赘述。
所述壳体21包括第一板体211、第二板体212和环形板体213，所述第一板体211和第二板体212分别位于所述环形板体213的相对两侧，所述第一板体211、所述第二板体212和所述环形板体213构成收容空间214，所述马达组件12和所述振膜组件13收容于所述收容空间214。
所述第一板体211呈平板状，所述第一磁体122与所述第一板体211焊接固定。
所述环形板体213呈环状，包括第一侧壁2131、第二侧壁2132、 第三侧壁2133、第四侧壁2134和第五侧壁2135，所述第二侧壁2132和所述第三侧壁2133自所述第一侧壁2131的两侧相对延伸而成，所述第四侧壁2134自所述第二侧壁2132向所述第三侧壁2133延伸而成，所述第五侧壁2135自所述第三侧壁2133向所述第二侧壁2132延伸而成。所述第四侧壁2134设置有凸块2136，所述第五侧壁2135设置有缺口2137，所述凸块2136收容于所述缺口2137，以使所述第四侧壁2134和所述第五侧壁2135卡合固定。
可以理解的是，在一些其他实施例中，所述凸块2136设置于所述第五侧壁2135上，所述缺口2137设置于所述第四侧壁2134上，且所述凸块2136和所述缺口2137的数量等同的变化，譬如，可以为两个、三个、四个或其他大于一个的数量。
可以理解的是，在一些其他实施例中，所述第四侧壁2134和第五侧壁2135也可以采取其他的固定方式，譬如，所述第四侧壁2134和所述第五侧壁2135也可以焊接固定。
所述第二侧壁2132和所述第三侧壁2133自所述第二板体212朝所述第一板体211的方向分别凹设有凹槽2139，所述凹槽2139用于收容所述锷铁121的固定部1212。
可以理解的是，在一些其他实施例中，当所述锷铁121呈平板状且位于所述第二侧壁2132和所述第三侧壁2133之间，且固定于所述第二侧壁2132和所述第三侧壁2133上时，可以取消设置所述凹槽2139。
所述第四侧壁2134和所述第五侧壁2135靠近所述第二板体212的一侧向所述第一板体211延伸有缺槽2138，所述两个引脚15穿过所述缺槽2138延伸出所述收容空间外，从而与位于收容空间外的电路板15相接触，从而电性连接所述线圈124和所述电路板15。
可以理解的是，如图所示，所述环形板体213先通过冲压工艺成型，形成平板状的环形板体预制件，然后将环形板体预制件采用折弯工艺，形成四次折弯；最后将所述第四侧壁2134和所述第五侧壁2135卡合固定，即可形成所述环形板体213。
现有技术中的壳体一般包括上壳和下壳，所述上壳和下壳均采用拉伸工艺成型。在本实施例中，通过将所述壳体21的结构设置为第一板体211、第二板体212和环形板体213，采用简单的冲压工艺和弯折工艺即可成型所述第一壳体21，降低了所述壳体21的制造成本和精度要求，进而降低了所述受话器200的成本和精度要求。
所述第四侧壁2134和所述第五侧壁2135上设置有缺槽2138，组装所述动铁受话器时，直接将所述马达组件12从所述第二板体212朝所述第一板体211组装固定于所述环形板体213上，提高了所述动铁受话器的组装效率。
需要说明的是，本申请的说明书及其附图中给出了本申请的较佳的实施例，但是，本申请可以通过许多不同的形式来实现，并不限于本说明书所描述的实施例，这些实施例不作为对本申请内容的额外限制，提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。并且，上述各技术特征继续相互组合，形成未在上面列举的各种实施例，均视为本申请说明书记载的范围；进一步地，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本申请所附权利要求的保护范围。

Claims (10)

  1. 一种动铁受话器，其特征在于，包括：
    马达组件和壳体，所述马达组件收容于所述壳体；
    其中，所述马达组件包括：
    锷铁，其两端分别固定于所述壳体的两个侧壁上，所述锷铁与所述壳体合围形成容置空间,且所述锷铁与所述壳体形成环型的导磁回路；
    第一磁体，收容于所述容置空间且固定于所述壳体上；
    第二磁体，收容于所述容置空间且固定于所述锷铁上。
  2. 根据权利要求1所述的动铁受话器，其特征在于，所述锷铁包括基部，自所述基部的两侧相对延伸的延伸部，自所述延伸部延伸的固定部；
    所述壳体包括第一壳体和第二壳体，所述第一壳体包括第一本体，自所述第一本体的两侧相对延伸的两个第一侧壁和连接所述两个第一侧壁的两个第二侧壁，所述固定部与所述第一侧壁相固定；
    所述第二壳体包括第二本体，自所述第二本体的两侧相对延伸的两个第三侧壁和连接所述两个第三侧壁的两个第四侧壁，所述第一侧壁和所述第三侧壁中的其中一个设置有凹槽，所述凹槽收容所述固定部。
  3. 根据权利要求2所述的动铁受话器，其特征在于，所述锷铁、所述两个第一侧壁和所述第一本体合围形成所述容置空间，所述第一磁体收容于所述容置空间且固定于所述第一本体上，所述第二磁体收容于所述容置空间且固定于所述基部上。
  4. 根据权利要求1所述的动铁受话器，其特征在于，所述锷铁呈平板状，包括位于所述锷铁两侧的固定部，所述壳体包括第一壳体和第二壳体，所述第一壳体包括第一本体，自所述第一本体的两侧相对延伸的两个第一侧壁和连接所述两个第一侧壁的两个第二侧壁，所述固定部与所述第一侧壁相固定；
    所述第二壳体包括第二本体，自所述第二本体的两侧相对延伸的两个第三侧壁和连接所述两个第三侧壁的两个第四侧壁，所述第一侧壁和所述第三侧壁中的其中一个设置有凹槽，所述凹槽收容所述固定部。
  5. 根据权利要求1所述的动铁受话器，其特征在于，所述锷铁呈平板状，所述壳体包括第一壳体，所述第一壳体包括第一本体，自所述第一本体两侧相对延伸的两个第一侧壁和连接所述第一侧壁的两个第二侧壁，所述锷铁与所述两个第一侧壁相固定且位于所述两个第一侧壁之间。
  6. 根据权利要求1所述的动铁受话器，其特征在于，所述壳体包括：第一板体；
    第二板体；
    环形板体，所述第一板体和所述第二板体分别位于所述环形板体的相对两侧，所述第一板体、第二板体和所述环形板体合围形成收容所述马达组件的收容空间。
  7. 根据权利要求6所述的动铁受话器，其特征在于，所述环形板体包括第一侧壁，自所述第一侧壁的两侧相对延伸有第二侧壁和第三侧壁，自所述第二侧壁向所述第三侧壁延伸有第四侧壁，自所述第三侧壁向所述第二侧壁延伸有第五侧壁，所述第四侧壁和所述第五侧壁中的一个设置有凸块，另一个设置有缺口，所述凸块收容于所述缺口，以使所述第四侧壁和所述第五侧壁卡合固定。
  8. 根据权利要求7所述的动铁受话器，其特征在于，所述锷铁包括基部，自所述基部的两侧相对延伸的延伸部，自所述延伸部延伸的固定部；
    所述第二侧壁和所述第三侧壁上设置有凹槽，所述固定部收容且固定于所述凹槽上。
  9. 根据权利要求6所述的动铁受话器，其特征在于，所述锷铁呈平板状，包括位于所述锷铁两侧的固定部，所述第二侧壁和所述第三侧壁 上设置有凹槽，所述固定部收容且固定于所述凹槽上。
  10. 根据权利要求6所述的动铁受话器，其特征在于，所述锷铁呈平板状，所述锷铁与所述第二侧壁和所述第三侧壁相固定且位于所述第二侧壁和所述第三侧壁之间。
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CN108391215B (zh) * 2018-04-26 2020-02-28 深圳倍声声学技术有限公司 一种动铁受话器
CN109644313A (zh) * 2018-11-30 2019-04-16 深圳倍声声学技术有限公司 受话器以及具有该受话器的助听器
WO2023005269A1 (zh) * 2021-07-28 2023-02-02 深圳市长盈精密技术股份有限公司 振膜、马达组件及动铁单元
WO2023005268A1 (zh) * 2021-07-28 2023-02-02 深圳市长盈精密技术股份有限公司 动铁单元、动铁单元组装方法及受话器
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