CN218041159U - Telephone receiver motor and double-diaphragm telephone receiver - Google Patents

Abstract

The utility model discloses a receiver motor and double-diaphragm receiver, the receiver motor includes electromagnetic drive device and armature, the electromagnetic drive device includes sword iron magnet subassembly and coil, the coil has first end and second end that are located its both ends, the sword iron magnet subassembly with the first end of coil links to each other; the armature, with the coil surface links to each other, the armature includes two relative settings and the motion piece that the magnetic conduction is connected, two motion piece one end is unsettled and wears to locate in the sword ferromagnetic part spare, two at least one of them cover of motion piece is equipped with the coil. The utility model discloses in, armature can be convenient with armature fixed connection on electromagnetic drive device, two unsettled settings of motion piece tip simultaneously can vibrate under electromagnetic drive device's drive.

Description

Telephone receiver motor and double-diaphragm telephone receiver

Technical Field

The utility model relates to an acoustics device especially relates to a receiver motor and double-diaphragm receiver.

Background

A balanced armature type receiver is an electroacoustic device that converts an audio electrical signal into a sound signal, and is widely used in electronic devices such as hearing aids, earphones, and telephones.

Among the prior art, balanced armature formula receiver includes the sword ferromagnetic part spare, coil, armature and vibrating diaphragm subassembly, and the armature is U-shaped reed usually, and a lamellar body and the sword ferromagnetic part spare fixed connection in two lamellar bodies that the U-shaped reed set up relatively, another lamellar body one end is unsettled, and after the coil circular telegram, the unsettled lamellar body of one end is reciprocating vibration under the effect of magnetic force, and this lamellar body passes through the connecting rod simultaneously and drives the vibration of vibrating diaphragm subassembly, and the air of drumming is sounded.

Because only one piece body of the U-shaped reed can be driven to vibrate, the number of the vibration membrane assemblies in the common balanced armature type receiver is one, and if the sound pressure level of the balanced armature type receiver is to be improved, a twins scheme is generally adopted, namely two balanced armature type receivers are connected to produce sound synchronously so as to increase the sound pressure level.

The applicant researches and discovers that if the structure of a receiver motor can be improved, two sheet bodies of a reed can be driven by a coil to vibrate and drive two vibrating diaphragm assemblies to vibrate and produce sound, the sound pressure level can be effectively increased, however, the original mounting structure of an armature is not applicable any more due to the change of the structure of the receiver motor, and therefore, how to fix the armature becomes a new problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a receiver motor and dual-diaphragm receiver, the armature of this receiver motor can be convenient fixed.

In order to realize the above-mentioned utility model purpose, on the one hand, the utility model provides a receiver motor, a serial communication port, include:

an electromagnetic drive comprising a jaw ferromagnetic assembly and a coil, the coil having first and second ends at opposite ends thereof, the jaw ferromagnetic assembly being connected to the first end of the coil; and the number of the first and second groups,

the armature, with the surface of coil links to each other, the armature includes two relative settings and the motion piece that the magnetic conduction is connected, two motion piece one end is unsettled and wears to locate in the sword ferromagnetic part spare, two at least one of them cover of motion piece is equipped with the coil.

Further, the armature includes a connecting portion connected between the two moving pieces, the two moving pieces and the connecting portion are integrally formed, and the connecting portion is provided with a first connecting arm extending toward the coil and connected with the coil.

Furthermore, the two moving sheets are all sleeved with the coils, and the first connecting arm is connected with the coils sleeved on the two moving sheets.

Further, the armature comprises a connecting part connected between the two moving sheets, the two moving sheets and the connecting part are integrally formed, and the receiver motor further comprises an armature support connected between the armature and the coil.

Furthermore, the two moving sheets are all sleeved with the coils, and the armature support is connected with the coils sleeved on the two moving sheets.

Further, the armature holder is connected to the connecting portion, and the armature holder includes a second connecting arm extending toward the coil and connected to the coil.

Furthermore, the electromagnetic driving device comprises two coils, namely a first coil and a second coil, wherein the length of the first coil is smaller than that of the second coil, the two moving sheets are respectively arranged in the first coil and the second coil in a penetrating manner, and the armature support is connected with the moving sheets arranged in the first coil in a penetrating manner.

Further, the armature bracket is connected to the upper surface of the moving plate penetrating the first coil and is connected to the first coil; or,

the armature bracket is connected to the upper surface of the moving sheet penetrating into the first coil, and is provided with a third connecting arm extending towards the second coil, and the third connecting arm is connected with both the first coil and the second coil; or,

the armature bracket is connected to the lower surface of the moving sheet penetrating through the first coil and connected with the first coil and the second coil.

Furthermore, the receiver motor further comprises an armature bracket, the two moving sheets are respectively connected to two surfaces of the armature bracket, which are oppositely arranged, and the armature bracket is connected with the coil.

Further, only one of the two moving sheets is sleeved with the coil, and the armature is connected with the second end of the coil; or,

the two moving sheets are sleeved with the coils, and the armature is connected with the second end of at least one coil.

Further, the ferromagnetic subassembly of the sword includes the iron subassembly of the sword and magnet subassembly, the iron subassembly of the sword includes middle magnetic conduction piece and connects respectively first magnetic conduction piece and the second magnetic conduction piece of middle magnetic conduction piece both sides, the magnet subassembly includes first magnet, second magnet, third magnet and fourth magnet, the second magnet with the third magnet connect respectively in the both sides of middle magnetic conduction piece, first magnet with first magnetic conduction piece link to each other and with the heteropole of second magnet sets up relatively, the fourth magnet with second magnetic conduction piece link to each other and with the heteropole of third magnet sets up relatively, two the motion piece is worn to locate respectively first magnet with between the second magnet and the third magnet with between the fourth magnet.

On the other hand, the utility model provides a double-diaphragm receiver, include as above arbitrary receiver motor.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses in, the armature has two and wears to establish the motion piece in the sword iron magnet subassembly, and the armature links to each other with the surface of coil, can be convenient with armature fixed connection on electromagnetic drive device, two unsettled settings of motion piece tip simultaneously can vibrate under electromagnetic drive device's drive. In addition, after the armature is fixed with the electromagnetic driving device, the receiver motor forms a whole body which can be integrally installed, for example, the whole body is installed in a shell component of the double-diaphragm receiver, and the assembly is more convenient.

2. As an improvement, under the condition that the two moving sheets are provided with coils outside, the second ends of the two coils are connected with the armature or the armature support, on one hand, the two coils are connected, and the connection between the two coils and the jaw ferromagnetic component is firmer, on the other hand, the connection between the armature and the two coils is firmer, which is beneficial to improving the stability and the reliability of the double-vibrating-diaphragm telephone receiver during working.

Drawings

Fig. 1 is a schematic structural diagram of a receiver motor according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of the receiver motor shown in fig. 1.

Fig. 3 is an exploded view of the receiver motor shown in fig. 1.

Fig. 4 is a schematic view of the armature of the receiver motor shown in fig. 1.

Fig. 5 is a schematic view showing a structure in which an armature and an armature holder of the receiver motor shown in fig. 1 are coupled.

Fig. 6 is a schematic structural diagram of an armature according to an embodiment of the present invention.

Fig. 7 is a schematic view of a receiver motor having the armature shown in fig. 6.

Fig. 8 is a schematic structural view of an armature and an armature holder according to an embodiment of the present invention.

Fig. 9 is a schematic view of a receiver motor having the armature and the armature holder shown in fig. 8.

Fig. 10 is a schematic cross-sectional view of a receiver motor according to an embodiment of the present invention.

Fig. 11 is a schematic view of the structure of fig. 10 in which the armature and the armature holder are coupled.

Fig. 12 is a schematic view of the connection between the armature and the armature holder according to an embodiment of the present invention.

Fig. 13 is a schematic view of a structure of a receiver motor having the armature and the armature holder shown in fig. 12.

Fig. 14 is a schematic view of the connection between the armature and the armature holder according to an embodiment of the present invention.

Fig. 15 is a schematic view of a receiver motor having the armature and armature holder shown in fig. 14.

Fig. 16 is a schematic view of the connection between the armature and the armature holder according to an embodiment of the present invention.

Fig. 17 is a schematic view of a receiver motor having the armature and armature holder shown in fig. 16.

Fig. 18 is a schematic structural diagram of a dual-diaphragm receiver according to an embodiment of the present invention.

Fig. 19 is a schematic cross-sectional view of the dual-diaphragm receiver shown in fig. 18.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "comprising" and "having," as well as any variations thereof, in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.

As shown in fig. 1 to 17, the present invention provides a receiver motor, which includes an electromagnetic driving device 1 and an armature 4.

The electromagnetic drive device 1 includes a blade ferromagnetic component 2 and a coil 3 connected to the blade ferromagnetic component 2, as shown in fig. 2, the coil 3 has a first end 3a connected to the blade ferromagnetic component 2 and a second end 3b opposite to the first end 3a, and the first end 3a and the second end 3b are respectively located at two ends of the coil 3 in the axial direction.

The armature 4 is connected to the coil 3, and may be connected directly to the coil 3 or may be connected to the coil 3 through other components. The armature 4 comprises two oppositely disposed moving plates 40, the two moving plates 40 are generally disposed in parallel and are magnetically connected. The two moving sheets 40 have the same ends suspended and penetrate through the flange ferromagnetic component 2. At least one of the two moving sheets 40 is sleeved with the coil 3, that is, the coil 3 may be sleeved outside both the two moving sheets 40, or the coil 3 may be sleeved outside only one of the moving sheets 40. After the coil 3 is energized, the two moving blades 40 can be driven to vibrate. As shown in fig. 2, the moving plate 40 extends from the outside of the second end 3b of the coil 3 toward the side where the ferromagnetic yoke assembly 2 is located, and the suspended end 402 thereof extends out of the ferromagnetic yoke assembly 2.

The armature 4 is connected with the outer surface of the coil 3, and because the outer surface of the coil 3 has enough area for the armature 4 to connect, a good fixing effect can be achieved, and the suspension length of the moving sheet 40 is not affected. Meanwhile, the jaw iron magnet assembly 2, the coil 3 and the armature 4 are connected as a whole, so that the receiver motor can be assembled as a whole, which is more convenient for assembling with other parts of the receiver.

The outer surface of the coil 3 includes both end surfaces at both ends thereof and an outer peripheral surface 3d connected between both end surfaces, and since the end surface 3e of the first end 3a is connected to the jaw ferromagnetic member 2, the armature 4 can be connected to the end surface 3f and/or the outer peripheral surface 3d of the second end 3 b. Preferably, the armature 4 is connected to the second end 3b of the coil 3, for example, to an end face 3f of the second end 3b, and may also be connected to the outer peripheral surface 3d in the vicinity of the second end 3b, to further increase the strength of the connection. Because the armature 4 penetrates into the coil 3 from the second end 3b of the coil 3 and is closer to the outer surface of the second end 3b of the coil 3, the convenience of fixing the armature 4 on the electromagnetic driving device 1 can be further improved by connecting the armature 4 with the second end 3b, the material consumption is reduced, and the assembly efficiency is improved. In some embodiments, only one of the two moving blades 40 is sleeved with the coil 3, and the armature 4 is connected to the second end 3b of the coil 3. In other embodiments, both moving plates 40 are sleeved with the coils 3, and the armature 4 is connected to the second end 3b of at least one of the coils 3.

As a preferred embodiment, as shown in fig. 1 to fig. 3, the flange ferromagnetic assembly 2 includes a flange iron assembly 200 and a magnet assembly 201, wherein the flange iron assembly 200 includes a plate-shaped intermediate magnetic conductive member 20, and an upper magnetic conductive member 21 and a lower magnetic conductive member 22 respectively connected to the upper and lower surfaces of the intermediate magnetic conductive member 20, the upper magnetic conductive member 21 and the lower magnetic conductive member 22 are U-shaped, and a first accommodating hole 23 and a second accommodating hole 24 are respectively formed between the upper magnetic conductive member 21 and the intermediate magnetic conductive member 20. The two moving pieces 40 are respectively inserted into the first receiving hole 23 and the second receiving hole 24.

The magnet assembly 201 comprises a first magnet 25, a second magnet 26, a third magnet 27 and a fourth magnet 28, wherein the first magnet 25 is connected with the upper magnetic conduction member 21, the fourth magnet 28 is connected with the lower magnetic conduction member 22, and the second magnet 26 and the third magnet 27 are respectively connected with the upper surface and the lower surface of the middle magnetic conduction member 20. The first magnet 25 and the second magnet 26 are oppositely arranged in different poles, and the third magnet 27 and the fourth magnet 28 are oppositely arranged in different poles, preferably, the four magnets are all arranged with the S pole on top and the N pole on bottom (refer to fig. 2), or the N pole on top and the S pole on bottom.

Two moving pieces 40 are respectively arranged between the first magnet 25 and the second magnet 26 and between the third magnet 27 and the fourth magnet 28, after the coil 3 is electrified, at least the part of the moving piece 40 between the two magnets is polarized to have N pole or S pole, so that the moving piece can move under the magnetic force of the magnets.

In some embodiments, as shown in fig. 6 and 7, the armature 4 includes a connecting portion 41 connected between the two moving plates 40, and the two moving plates 40 and the connecting portion 41 are integrally formed, for example, the armature 4 may be formed by bending the magnetic conductive plate. The connecting portion 41 is provided with a first connecting arm 410 extending towards the coil 3, the first connecting arm 410 being connected to the coil 3, for example by gluing. As a preferred embodiment, the width B0 of the connecting portion 41 is greater than the width B1 of the moving piece 40, both ends of the connecting portion 41 protrude outside the moving piece 40, and both ends of the connecting portion 41 are provided with first connecting arms 410 extending toward the coil 3, the first connecting arms 410 may extend to be close to, for example, abut against or have a certain interval with the second end 3B of the coil 3 so as to be connected with the second end 3B, and the first connecting arms 410 may also extend to be outside the outer circumferential surface 3d of the coil 3 so as to be connected with the outer circumferential surface 3 d.

Under the condition that two motion pieces 40 all overlap and are equipped with coil 3, the equal adhesive bonding of coil 3 on two motion pieces 40 is located with the cover to first connecting arm 410, can be so that two coils 3 also pass through adhesive bonding, and both fixed is more firm, especially under the condition that the second end 3b of two coils 3 links together, can promote the fastness of its connection by a wide margin, is difficult for breaking from its junction with the sword ferromagnetic body subassembly 2. As shown in fig. 7, fig. 7 shows the position of the glue slug 6, which is connected between the two coils 3 and covers the outer edge of the second end 3b of the coil 3, so that the two coils 3 and the first connecting arm 410 can be fixed together at the same time. It will be appreciated that the block of glue 6 is formed by curing of the glue.

Link together through glue with the second end 3b of two coils 3, can improve the holistic fastness of two coils 3, make it be difficult for break away from mutually with sword ferromagnetic component 2, be favorable to improving the stability and the reliability of during operation.

In some embodiments, the armature 4 includes a connecting portion 41 connected between the two moving blades 40, the two moving blades 40 and the connecting portion 41 are integrally formed, and the receiver motor further includes an armature holder 5 connected to the armature 4, and the armature 4 is connected to the coil 3 through the armature holder 5. Since the armature support 5 and the armature 4 are two independent parts, the structure of the armature 4 can be simplified, and the armature 4 can be conveniently molded.

It can be understood that, in the case where both the moving pieces 40 are sleeved with the coils 3, the armature support 5 is adhesively connected to both the coils 3 to improve the firmness of the connection between the two coils 3 and between the coils 3 and the armature support 5.

In some embodiments, the armature support 5 is connected to the connecting portion 41, for example, inside or outside the connecting portion 4.

In a preferred embodiment, referring to fig. 1 to 5, the armature holder 5 is connected to the outer side surface 410 of the connecting portion 41, and is provided with a second connecting arm 50 extending toward the coil 3, the second connecting arm 50 is connected to the second end 3b of the coil 3, and preferably, the armature holder 5 is provided with the second connecting arms 50 at both ends in the width direction thereof to improve the firmness of the connection. Fig. 1 shows a glue mass 6 connected between two coils 3, which simultaneously connects the two coils 3 and a second connecting arm 50. The height H of the second linking arm 50 of the armature support 5 is greater than the height of the armature 4, so that the length of the connection between the armature support and the coil 3 is longer, and the area where the glue can be applied is also larger, which can further improve the firmness of the connection.

In a preferred embodiment, referring to fig. 8 and 9, the armature holder 5 has a plate shape and is attached to an inner side surface 411 (reference numeral, see fig. 2) of the connecting portion 41, and both ends of the armature holder 5 extend out of both ends of the connecting portion 41 and are connected to the second end 3b of the coil 3. Fig. 9 shows a glue slug 6 connected between two coils 3, which simultaneously connects the two coils 3 and the ends of the armature support 5. In the present embodiment, the armature holder 5 is simpler in structure and is easier to machine and mold.

In some embodiments, the armature bracket 5 is connected to the moving piece 40, for example, inside or outside the moving piece 40. For convenience of description, the two coils 3 are referred to as a first coil 30 and a second coil 31, respectively, the moving piece 40 inserted into the first coil 30 is referred to as a first moving piece 40a, and the moving piece 40 inserted into the second coil 31 is referred to as a second moving piece 40b. Fig. 10 to 15 show an embodiment in which the first coil 30 is located above the second coil 31 and has a length shorter than the length of the second coil 31.

In a preferred embodiment, referring to fig. 10 and 11, the armature holder 5 has a plate shape and is attached to an upper surface 400 of the first moving piece 40a, and the upper surface 400 is a surface of the first moving piece 40a facing away from the second moving piece 40b. The first moving piece 40a is provided with a laterally extending protrusion 42, which can increase the contact area with the armature holder 5 and improve the firmness of the connection. The armature support 5 is located at the second end 3b of the first coil 30 and is adhesively connected to this end. As shown in fig. 12 and 13, the armature holder 5 may be attached to a lower surface 401 of the first moving piece 40a, the lower surface 401 being a surface of the first moving piece 40a facing the second moving piece 40b. Compared with the case where the armature holder 5 is disposed on the upper surface 400 of the first moving piece 40a, the armature holder 5 is closer to the second coil 31, for example, the armature holder 5 can be connected to the second end 3b of the first coil 30 and the outer peripheral surface 3d of the second coil 31 by gluing, and is more stable.

In a preferred embodiment, referring to fig. 14 and 15, the armature holder 5 is coupled to the upper surface 400 of the first moving piece 40a, and both ends thereof are provided with third connecting arms 51 extending toward the second coil 31. The armature support 5 is located at the second end 3b of the first coil 30, and since the third connecting arm 51 thereof is close to both coils 3, the armature support 5 can be adhesively connected to both coils 3 at the same time, and specifically, the armature support 5 can be adhesively connected to the second end 3b of the first coil 30 and the outer circumferential surface 3d of the second coil 31.

It is apparent that the length of the first moving piece 40a suspended in the air is shorter than that of the second moving piece 40b, and the connecting portion 41 can also vibrate along with the second moving piece 40b when it vibrates, thereby actually further increasing the suspended length of the second moving piece 40b. Thus, the shorter first motion piece 40a helps to improve the high frequency response, and the longer second motion piece 40b helps to increase the low frequency output, so that the full frequency performance of the dual-diaphragm receiver is better.

Further, when armature 4 is connected with the magnetic conduction of sword iron subassembly 200 (for example, the casing subassembly 7 of double-vibrating diaphragm receiver adopts magnetic material to make, armature 4 or armature support 5 and sword iron subassembly 200 are connected with casing subassembly 7 magnetic conduction, thereby realize that armature 4 is connected with the magnetic conduction of sword iron subassembly 200), two coils 3 can drive its interior motion piece 40 vibration respectively, can set first coil 30 to be partial to high frequency output, set second coil 31 to be partial to low frequency output, thereby combine the full frequency performance that further improves double-vibrating diaphragm receiver with the nature of two motion pieces 40 self. Generally, increasing the ratio of the resistance of the coil 3 to the square of the number of turns increases the high frequency output and decreases the low frequency output, and decreasing the ratio of the resistance to the square of the number of turns increases the low frequency output and decreases the high frequency output.

It is understood that the length of the second coil 31 may be set shorter than the length of the first coil 30, and the armature holder 5 is coupled to the upper surface or the lower surface of the second moving piece 40b.

In some embodiments, as shown in fig. 16 and 17, the two moving pieces 40 of the armature 4 are separate pieces without an integrally formed connecting portion 41 therebetween. The armature holder 5 has a plate shape, and ends of the two moving pieces 40 are respectively coupled to upper and lower surfaces of the armature holder 5 which are oppositely disposed. The armature support 5 is made of a magnetic conductive material so that the two moving pieces 40 are connected in a magnetic conductive manner. The armature support 5 extends from both ends thereof to both sides of the moving piece 40, and is connected to the second ends 3b of the two coils 3 by gluing, and the position of the glue block 6 is shown in fig. 17.

The utility model also provides a double-diaphragm receiver, it includes the above receiver motor.

As shown in fig. 18 and 19, the dual-diaphragm receiver further includes a housing assembly 7, a first diaphragm assembly 80, and a second diaphragm assembly 81.

The first diaphragm assembly 80 and the second diaphragm assembly 81 are located in the housing assembly 7 and are arranged in parallel up and down, and the first diaphragm assembly 80 and the second diaphragm assembly 81 divide the interior of the housing assembly 1 into a first front cavity 72, a second front cavity 73, and a back cavity 74 located between the first front cavity 72 and the second front cavity 73. The receiver motor is arranged in the rear cavity 74, the two moving sheets 40 of the armature 4 are respectively used for driving the first vibrating membrane component 80 and the second vibrating membrane component 81 to vibrate, specifically, the suspended end 402 of the moving sheet 40 extends out of the jaw ferromagnetic component 2, and the suspended end 402 is connected with the corresponding vibrating membrane component through the connecting rod 82.

The housing assembly 7 has two sound holes 70 formed in a front end surface 7a thereof, and the two sound holes 70 are respectively communicated with the first front cavity 72 and the second front cavity 73. The receiver further comprises a sound outlet pipe 71 connected with the front end face 7a of the housing assembly 7, wherein the sound outlet pipe 71 is covered on the two sound outlet holes 70, and can collect the sound of the two sound outlet holes 70 and conduct the sound to the outside. Because the receiver has two vibrating diaphragm assemblies to sound simultaneously, therefore, it has bigger sound pressure level, and the acoustic effect is better.

The intermediate magnetic conductor 20 of the receiver motor is connected with the housing assembly 7, in an embodiment without the armature support 5 (such as the embodiment shown in fig. 6 and 7), the connecting portion 41 of the armature 4 is connected with the housing assembly 7, for example, by gluing or welding, in an embodiment with the armature support 5 (such as the embodiment shown in fig. 1 to 5), the armature 4 is connected with the housing assembly 7 through the armature support 5, and the armature support 5 is connected with the housing assembly 7, for example, by gluing or welding, so that the rear end of the receiver motor is also fixed with the housing assembly 7, and the receiver motor is more firmly installed in the housing assembly 7.

When the armature 4 is magnetically connected with the jaw iron assembly 200, the coil 3 needs to be sleeved outside the two moving sheets 40, and the coil 3 is used for independently driving the moving sheets 40 therein to vibrate, so that the dual-diaphragm receiver has richer acoustic performance. By arranging the housing assembly 7 and the armature support 5 to be made of a magnetically conductive material, the magnetic connection between the armature 4 and the blade assembly 200 can be achieved.

When the armature 4 and the jaw iron assembly 200 are non-magnetically connected, only one of the two moving plates 40 may be sleeved with the coil 3, or both of the two moving plates 40 may be sleeved with the coil 3, and any one of the coils 3 can simultaneously polarize the two moving plates 40, so that at least the portion of the two moving plates 40 located in the jaw iron assembly 2 is polarized to two opposite poles, and then the two moving plates 40 are driven to vibrate under the action of the magnetic field. The non-magnetic conductive connection between the armature 4 and the yoke assembly 200 can be achieved by providing the housing assembly 7 and/or the armature support 5 with a non-magnetic conductive material.

Further, in some embodiments, when the two moving sheets 40 vibrate simultaneously, the vibration directions thereof are opposite, so that the two vibrating diaphragm assemblies also vibrate in opposite directions, and vibrations generated during operation just cancel each other out, which can significantly improve the influence caused by the vibrations of the dual-vibrating diaphragm receiver, and improve the performance and the use experience of the product.

The aforesaid is only the embodiment of the present invention, and other improvements made under the premise of the concept of the present invention are all regarded as the protection scope of the present invention.

Claims (12)

1. A receiver motor, comprising:

an electromagnetic drive (1) comprising a jaw ferromagnetic assembly (2) and a coil (3), the coil (3) having a first end (3 a) and a second end (3 b) at opposite ends thereof, the jaw ferromagnetic assembly (2) being connected to the first end (3 a) of the coil (3); and the number of the first and second groups,

armature (4), with the surface of coil (3) links to each other, armature (4) include two relative settings and magnetic conduction connected motion piece (40), two motion piece (40) all have one end unsettled and wear to locate in the sword ferromagnetic part spare (2), two at least one of them cover of motion piece (40) is equipped with coil (3).

2. A receiver motor according to claim 1, wherein said armature (4) comprises a connecting portion (41) connected between two of said moving blades (40), two of said moving blades (40) and said connecting portion (41) are integrally formed, said connecting portion (41) being provided with a first connecting arm (410) extending toward said coil (3) and connected to said coil (3).

3. A receiver motor according to claim 2, wherein both of said moving blades (40) are provided with said coil (3), and said first connecting arm (410) is connected to both of said coils (3) provided on both of said moving blades (40).

4. A receiver motor according to claim 1, wherein said armature (4) comprises a connecting portion (41) connected between two of said moving blades (40), two of said moving blades (40) and said connecting portion (41) are integrally formed, and said receiver motor further comprises an armature holder (5) connected between said armature (4) and said coil (3).

5. A receiver motor according to claim 4, wherein said coils (3) are provided on both of said moving blades (40), and said armature holder (5) is connected to both of said coils (3) provided on both of said moving blades (40).

6. A receiver motor according to claim 4, characterized in that the armature holder (5) is connected to the connecting portion (41), and that the armature holder (5) comprises a second connecting arm (50) extending towards the coil (3) and connected to the coil (3).

7. A receiver motor according to claim 4, wherein said electromagnetic driving device (1) comprises two said coils (3), respectively a first coil (30) and a second coil (31), said first coil (30) having a length smaller than that of said second coil (31), two said moving pieces (40) respectively inserted into said first coil (30) and said second coil (31), said armature holder (5) being connected to said moving pieces (40) inserted into said first coil (30).

8. A receiver motor according to claim 7, wherein said armature holder (5) is connected to an upper surface (400) of a moving blade (40) inserted into said first coil (30) and connected to said first coil (30); or,

the armature support (5) is connected to the upper surface (400) of the moving sheet (40) penetrating in the first coil (30), and the armature support (5) is provided with a third connecting arm (51) extending towards the second coil (31), and the third connecting arm (51) is connected with the first coil (30) and the second coil (31); or,

the armature support (5) is connected to the lower surface (401) of the moving sheet (40) penetrating the first coil (30), and is connected with the first coil (30) and the second coil (31).

9. A receiver motor according to claim 1, further comprising an armature holder (5), two of said moving blades (40) being attached to two surfaces of said armature holder (5) which are oppositely disposed, respectively, said armature holder (5) being attached to said coil (3).

10. A receiver motor according to claim 1, wherein only one of said two moving blades (40) is provided with said coil (3), said armature (4) being connected to the second end (3 b) of said coil (3); or,

the two moving sheets (40) are both sleeved with the coils (3), and the armature (4) is connected with the second end (3 b) of at least one coil (3).

11. A receiver motor according to any of claims 1 to 10, wherein said yoke ferromagnetic assembly (2) comprises a yoke assembly (200) and a magnet assembly (201), said yoke assembly (200) comprises an intermediate magnetic conductive member (20) and a first magnetic conductive member (21) and a second magnetic conductive member (22) respectively connected to both sides of said intermediate magnetic conductive member (20), said magnet assembly (201) comprises a first magnet (25), a second magnet (26), a third magnet (27) and a fourth magnet (28), said second magnet (26) and said third magnet (27) are respectively connected to both sides of said intermediate magnetic conductive member (20), said first magnet (25) is connected to said first magnetic conductive member (21) and is oppositely disposed with respect to the opposite polarity of said second magnet (26), said fourth magnet (28) is connected to said second magnetic conductive member (22) and is oppositely disposed with respect to the opposite polarity of said third magnet (27), and two moving plates (40) are respectively interposed between said first magnet (25) and said second magnet (26) and said fourth magnet (28).

12. A dual diaphragm receiver comprising the receiver motor of any one of claims 1 to 11.

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