CN218041160U - Telephone receiver motor and double-diaphragm telephone receiver - Google Patents

Abstract

The utility model discloses a receiver motor and a double-diaphragm receiver, wherein the receiver motor comprises an armature and an electromagnetic driving device, the armature comprises a first moving sheet and a second moving sheet which are oppositely arranged and connected in a magnetic conduction manner, and one end of each of the first moving sheet and the second moving sheet is arranged in a suspension manner; the electromagnetic driving device comprises a magnet assembly, a jaw iron assembly connected with the magnet assembly and a coil sleeved on the armature, wherein the magnet assembly comprises a first magnet, a second magnet and a third magnet, opposite poles of the first magnet and the second magnet are oppositely arranged, and opposite poles of the second magnet and the third magnet are oppositely arranged; the first moving piece is arranged between the first magnet and the second magnet in a penetrating mode, and the second moving piece is arranged between the second magnet and the third magnet in a penetrating mode. The utility model discloses in, the receiver motor has two motion pieces that can move, can drive two vibrating diaphragms vibrations of two vibrating diaphragm receivers, is favorable to increasing the sound pressure level.

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.

In the prior art, the balanced armature type telephone receiver comprises a shell assembly, a motor and a vibrating diaphragm assembly, wherein the motor and the vibrating diaphragm assembly are arranged in the shell assembly, the motor comprises an electromagnetic driving device and a U-shaped reed, the U-shaped reed comprises two sheet bodies which are oppositely arranged, one of the sheet bodies is connected with the electromagnetic driving device and is fixed, one end of the other sheet body is arranged in a suspending way, the other sheet body can vibrate under the driving of the electromagnetic driving device, and the sheet body with the suspending end is connected with the vibrating diaphragm assembly and can drive the vibrating diaphragm assembly to vibrate.

Because only a lamellar body of reed of motor can be driven vibration, and then drive vibrating diaphragm subassembly vibration sound production, consequently, it is comparatively difficult to improve the sound pressure level of balanced armature receiver, will increase the sound pressure level of balanced armature receiver, adopt the structural design of twins formula usually, connect into a whole with two balanced armature receivers and carry out vibration sound production, two balanced armature receivers need can sound production in step, the requirement to control is higher, and occupation space is great moreover.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a receiver motor and dual-diaphragm receiver, this receiver motor have two motion pieces that can be driven to vibrate, can drive two vibrating diaphragm subassembly vibration sound production of dual-diaphragm receiver.

In order to realize the above object of the utility model, on the one hand, the utility model provides a receiver motor, include:

the armature comprises a first moving sheet and a second moving sheet which are oppositely arranged and connected in a magnetic conduction manner, and one ends of the first moving sheet and the second moving sheet are arranged in a suspended manner; and (c) a second step of,

the electromagnetic driving device comprises a magnet assembly, a jaw iron assembly connected with the magnet assembly and a coil sleeved on the armature, wherein the magnet assembly comprises a first magnet, a second magnet and a third magnet, opposite poles of the first magnet and the second magnet are oppositely arranged, and opposite poles of the second magnet and the third magnet are oppositely arranged;

wherein the first moving piece is arranged between the first magnet and the second magnet in a penetrating way, and the second moving piece is arranged between the second magnet and the third magnet in a penetrating way.

Further, the sword iron subassembly includes middle magnetic conduction piece and connect respectively in the first magnetic conduction piece and the second magnetic conduction piece of middle magnetic conduction piece both sides, first magnetic conduction piece with form first accommodation hole between the middle magnetic conduction piece, second magnetic conduction piece with form the second accommodation hole between the middle magnetic conduction piece, first magnet is located in the first accommodation hole and with first magnetic conduction piece links to each other, the second magnet with middle magnetic conduction piece links to each other, the third magnet is located in the second accommodation hole and with second magnetic conduction piece links to each other.

Furthermore, the middle magnetic conducting piece is provided with a mounting opening communicated with the first accommodating hole and the second accommodating hole, the second magnet is mounted in the mounting opening, and two ends of the second magnet respectively extend into the first accommodating hole and the second accommodating hole.

Further, the coil is connected to the blade assembly and/or the magnet assembly.

Further, the armature further includes a connecting portion connected between the first moving piece and the second moving piece, the first moving piece, the second moving piece and the connecting portion are integrally formed, and the connecting portion is connected to the coil; alternatively, the first and second liquid crystal display panels may be,

the armature further comprises a connecting part connected between the first moving sheet and the second moving sheet, the first moving sheet, the second moving sheet and the connecting part are integrally formed, the receiver motor further comprises an armature support connected with the connecting part, and the armature support is connected with the coil; alternatively, the first and second liquid crystal display panels may be,

the first moving piece and the second moving piece are independent parts, the receiver motor further comprises an armature support connected between the first moving piece and the second moving piece, and the armature support is connected with the coil.

Further, only one of the first moving sheet and the second moving sheet is sleeved with the coil, or both the first moving sheet and the second moving sheet are sleeved with the coil.

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

Further, the dual-diaphragm receiver further includes:

a housing assembly having an inner cavity;

the first vibrating diaphragm assembly is arranged in the inner cavity and connected with the shell assembly; and the number of the first and second groups,

the first diaphragm component and the second diaphragm component divide the inner cavity into a first front cavity, a second front cavity and a rear cavity positioned between the first front cavity and the second front cavity;

the receiver motor is installed in the back cavity, its sword iron subassembly with the casing subassembly links to each other, first motion piece with the transmission is connected between the first vibrating diaphragm subassembly, the second motion piece with the transmission is connected between the second vibrating diaphragm subassembly.

Furthermore, the blade iron assembly comprises a convex flange, the shell assembly is provided with a positioning hole, and the flange is connected in the positioning hole.

Furthermore, the housing assembly is provided with a first sound outlet communicated with the first front cavity and a second sound outlet communicated with the second front cavity, and the double-diaphragm telephone receiver further comprises a sound outlet pipe which is connected with the housing assembly and is covered on the first sound outlet and the second sound outlet.

Furthermore, the coil is sleeved outside only one of the first moving sheet and the second moving sheet, and the first moving sheet and the second moving sheet are in non-magnetic conduction connection with the jaw iron assembly; alternatively, the first and second electrodes may be,

the coil is sleeved outside the first moving sheet and the second moving sheet, and the first moving sheet and the second moving sheet are in non-magnetic conduction connection with the jaw iron assembly; alternatively, the first and second electrodes may be,

the outside of first motion piece with the second motion piece all is equipped with the coil, just first motion piece with the second motion piece with be connected for magnetic conduction between the sword iron subassembly.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses an among the receiver motor structure, the armature has the motion piece of the unsettled setting of two one ends, and electromagnetic drive device is equipped with three magnet, and two motion pieces wear to establish respectively between first magnet and the second magnet and between second magnet and the third magnet, and the coil can drive two motion pieces and vibrate under the magnetic force effect of magnet. Like this, can set up two vibrating diaphragm subassemblies in the receiver to two motion pieces through the receiver motor drive two vibrating diaphragm subassemblies vibration respectively, be favorable to improving the sound pressure level of receiver, and the volume of two vibrating diaphragm receivers is more small and exquisite.

Drawings

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

Fig. 2 is an exploded view of the receiver motor shown in fig. 1.

Fig. 3 is a sectional view of the receiver motor shown in fig. 1.

Fig. 4 is a perspective view of the yoke assembly of the receiver motor shown in fig. 1.

Fig. 5 is a schematic perspective view of a dual-diaphragm receiver according to an embodiment of the present invention.

Fig. 6 is a sectional view of the dual-diaphragm receiver shown in fig. 5.

Fig. 7 is a schematic perspective view of an armature according to an embodiment of the present invention.

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

Fig. 9 is a schematic perspective view of a diaphragm assembly according to an embodiment of the present invention.

Fig. 10 is a cross-sectional view of the diaphragm assembly shown in fig. 9.

Fig. 11 is a schematic perspective view of a dual-diaphragm receiver according to an embodiment of the present invention, in which a first casing and a second casing are disposed along a length direction of a casing assembly.

Fig. 12 is a cross-sectional view of a receiver motor according to an embodiment of the present invention, in which a coil is sleeved on each of a first moving plate and a second moving plate.

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 the application and are not limiting of the 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 3, the present invention provides a receiver motor, which includes an armature 1 and an electromagnetic driving device 2.

The armature 1 includes a first moving plate 10 and a second moving plate 11 which are oppositely arranged, one end of the first moving plate 10 and one end of the second moving plate 11 are suspended and arranged in the electromagnetic driving device 2, and the other end of the first moving plate 10 and the other end of the second moving plate 11 can be connected with other components, for example, with the electromagnetic driving device 2 or with the housing assembly 4 of the receiver, and can be directly connected with the electromagnetic driving device 2 or the housing assembly 4, or connected with the housing assembly 4 through other components (for example, the connecting portion 12 and the armature support 3 mentioned below). The armature 1 is made of magnetic conductive material, and the two moving sheets are connected in a magnetic conductive manner.

The electromagnetic driving device 2 comprises a magnet assembly 22, a jaw iron assembly 23 connected with the magnet assembly 22 and a coil 21 sleeved on the armature 1, wherein the magnet assembly 22 comprises three magnets which are sequentially arranged at intervals and respectively comprise a first magnet 220, a second magnet 221 and a third magnet 222, the first magnet 220 and the second magnet 221 are oppositely arranged in a heteropolar mode, and the second magnet 221 and the third magnet 222 are oppositely arranged in a heteropolar mode; the first moving piece 10 is inserted between the first magnet 220 and the second magnet 221, and the second moving piece 11 is inserted between the second magnet 221 and the third magnet 222.

Preferably, the three magnets have like poles facing in the same direction, for example, the three magnets are all S-pole up and N-pole down (see fig. 3), or are all N-pole up and S-pole down, so as to magnetize the magnet assembly 22 in the same direction.

The coil 21 is mounted on the armature 1 and may be connected to the yoke assembly 23 and/or the magnet assembly 22. After the coil 21 is energized, at least a portion of the moving piece located between the two magnets is polarized, so that the moving piece can move by the magnetic force. For example, as shown in fig. 3, when the portion of the first moving plate 10 between the magnets is polarized to N pole, the first magnet 220 and the second magnet 221 both apply a downward magnetic force thereto, so that the free end of the first moving plate 10 moves downward, whereas when the portion of the first moving plate 10 between the magnets is polarized to S pole by passing a reverse current through the coil 21, the first magnet 220 and the second magnet 221 both apply an upward magnetic force thereto, so that the free end of the first moving plate 10 moves upward, and thus the first moving plate 10 can be driven to vibrate back and forth by changing the direction of the current in the coil 21. The vibration principle of the second moving sheet 11 may refer to the vibration principle of the first moving sheet 10. It will be appreciated that the coil 21 has a spacing space between the two moving sheets to ensure that the moving sheets have sufficient space to freely vibrate.

Because two motion pieces homoenergetic of armature 4 can be driven the vibration, consequently, two motion pieces can both drive the vibration of vibrating diaphragm subassembly, are favorable to realizing the vibration sound production of two vibrating diaphragm subassemblies. As shown in fig. 5 and fig. 6, the figures show a dual-diaphragm receiver, which includes a housing assembly 4, and a first diaphragm assembly 5 and a second diaphragm assembly 6 disposed in the housing assembly 4, wherein the first diaphragm assembly 5 is in transmission connection with a first moving sheet 10, the second diaphragm assembly 6 is in transmission connection with a second moving sheet 11, the two diaphragm assemblies vibrate under the driving of the two moving sheets respectively, and the air is blown to produce sound, which is equivalent to two sound producing units producing sound simultaneously, so that the sound pressure level of the receiver can be effectively increased, and the acoustic performance effect is improved. Meanwhile, two connected receivers do not need to be arranged to vibrate and sound at the same time, the structure is more compact, and the miniaturization is convenient to realize.

The jaw iron assembly 23 is made of magnetic conductive materials, the first magnet 220, the second magnet 221 and the third magnet 222 are all connected with the jaw iron assembly 23, the magnetic induction lines are guided through the jaw iron assembly 23, a magnetic conductive loop is formed, magnetic conductive efficiency is improved, and accordingly sensitivity of vibration of the moving sheet is improved. The jaw iron assembly 23 is connected with the housing assembly 4, and the electromagnetic driving device 2 is fixed in the housing assembly 4 through the connection between the jaw iron assembly 23 and the housing assembly 4.

In some embodiments, referring to fig. 1 to 3, the yoke assembly 23 includes an intermediate magnetic member 230, and a first magnetic member 231 and a second magnetic member 232 respectively connected to two sides of the intermediate magnetic member 230, wherein the intermediate magnetic member 230 is plate-shaped, and the first magnetic member 231 and the second magnetic member 232 are U-shaped and respectively connected to the upper surface and the lower surface of the intermediate magnetic member 230. A first accommodating hole 233 and a second accommodating hole 234 are respectively formed between the first magnetic conductive member 231 and the intermediate magnetic conductive member 230 and between the second magnetic conductive member 232 and the intermediate magnetic conductive member 230 in an enclosing manner, the first magnet 220 is disposed in the first accommodating hole 233 and connected to the first magnetic conductive member 231, the second magnet 221 is connected to the intermediate magnetic conductive member 230, and the third magnet 222 is disposed in the second accommodating hole 234 and connected to the second magnetic conductive member 232.

Both poles of the second magnet 221 extend into the first and second accommodation holes 233 and 234 to be reliably opposed to the first and second magnets 220 and 221. As shown in fig. 2 and 4, the middle magnetic conductive member 230 is provided with a mounting opening 235, the middle magnetic conductive member 230 is mounted in the mounting opening 235, and two ends of the middle magnetic conductive member extend into the first receiving hole 233 and the second receiving hole 234, respectively, so that the moving plate can be driven by the magnetic force of the second magnet 221 more reliably after being polarized. While fig. 2 shows an embodiment in which the mounting opening 235 is open toward the end of the coil 21, in other embodiments, the mounting opening 235 may have a closed loop shape.

The armature 1 can be connected with the coil 21 or the housing component 4, or can be connected with the coil 21 and the housing component 4 at the same time, and the armature 1 and the coil 21 and the armature 1 and the housing component 4 can be directly connected or can be connected through other parts (such as the armature support 3), when the armature 1 is connected with the coil 21, the receiver motor forms a whole body and can be integrally installed in the housing component 4. The connection between the armature 1 and the coil 21 and the housing assembly 4 can fix the armature 1 with the coil 21 and the housing assembly 4 relatively, so as to better ensure the controlled vibration of the moving sheet, and preferably, the free end of the moving sheet covered with the coil 21 and the fixed part of the armature 1 are respectively located at two sides of the coil 21.

In some embodiments, as shown in fig. 7, the armature 1 includes a connecting portion 12 connected between the first moving plate 10 and the second moving plate 11, the connecting portion 12 is connected between right end portions of the two moving plates, and the armature 1 has a U shape as a whole. The first moving piece 10, the second moving piece 11 and the connecting portion 12 are integrally formed, and the armature 1 may be formed by bending the magnetic conductive piece, for example. The connecting portion 12 may be connected to the coil 21 and/or the housing assembly 4, and preferably is connected to both the coil 21 and the housing assembly 4 to improve the stability of the mounting of the armature 1. The connecting portion 12 is connected to the coil 21 and the housing assembly 4 by means of gluing. In a preferred embodiment, the connection portion 12 is provided with a first arm portion 120 extending toward the coil 21, and the first arm portion 120 can be more easily connected to the coil 21 by being located closer to the coil 21.

In some embodiments, as shown in fig. 1 to 3, the armature 1 also includes a connecting portion 12 connected between the first moving plate 10 and the second moving plate 11, and the dual diaphragm receiver further includes an armature holder 3 connected to the armature 1, and the armature holder 3 may be connected to the first moving plate 10, the second moving plate 11, or the connecting portion 12 (in the drawings, the armature holder 3 is connected to the connecting portion 12), and the armature holder 3 is connected to the coil 21 and/or the housing assembly 4. Preferably, the armature support 3 is connected to both the coil 21 and the housing assembly 4 to improve the stability of the mounting of the armature 1, for example by gluing. In a preferred embodiment, the armature holder 3 is connected to the outer side 121 of the connecting portion 12, and is provided with a second arm portion 30 extending toward the coil 21, and the second arm portion 30 is positioned closer to the coil 21, so that the armature can be more easily connected to the coil 21.

In some embodiments, referring to fig. 8, the first moving plate 10 and the second moving plate 11 are independent parts without a connecting portion 12 integrally formed therewith, the receiver motor includes an armature holder 3 connected between right end portions of the two moving plates, the armature holder 3 has a plate shape, the two moving plates are respectively connected to upper and lower surfaces of the armature holder 3, and the armature holder 3 is made of a magnetic conductive material so that the two moving plates are magnetically connected. The armature support 3 is connected to the coil 21 and/or the housing assembly 4 such that the armature 1 is connected to the coil 21 and/or the housing assembly 4.

The utility model also provides a two vibrating diaphragm receivers, as shown in figure 6 and figure 7, it includes the above receiver motor. The dual-diaphragm receiver further comprises a shell component 4, a first diaphragm component 5 and a second diaphragm component 6.

The shell component 4 is provided with an inner cavity, and the first vibrating diaphragm component 5 and the second vibrating diaphragm component 6 are both arranged in the inner cavity and connected with the inner wall 4a of the shell component 4. The two diaphragm assemblies are arranged in parallel and spaced apart, and divide the inner cavity of the housing assembly 4 into a first front cavity 40, a second front cavity 41, and a back cavity 42 located between the first front cavity 40 and the second front cavity 41.

The receiver motor is mounted in the rear chamber 42, the armature 1 of which is connected to the electromagnetic drive 2 and/or the housing assembly 4.

The first motion piece 10 is connected with the transmission between first vibrating diaphragm subassembly 5, and the transmission is connected between second motion piece 11 and the second vibrating diaphragm subassembly 6, and after the motion piece vibrates, can drive the vibrating diaphragm subassembly vibration that links to each other with it, makes two vibrating diaphragm subassemblies all can vibrate the sound production. In a preferred embodiment, the moving plate and the corresponding diaphragm assembly are connected by a connecting rod 13 to realize a transmission connection.

Preferably, the first diaphragm assembly 5 and the second diaphragm assembly 6 are symmetrically disposed within the housing assembly 4 and fixed to the inner wall 4a of the housing assembly 4. As shown in fig. 9 and 10, each of the two diaphragm assemblies includes an annular outer frame 50 connected to the housing assembly 4, a diaphragm 51 provided in the outer frame 50, and a film 52 connected to the outer frame 50 and the diaphragm 51, wherein one end of the diaphragm 51 is hinged to the outer frame 50, and a gap is provided between the outer periphery of the diaphragm 51 and the outer frame 50, so that the diaphragm 51 can move relative to the outer frame 50 with a connecting portion 54 of the diaphragm 51 and the outer frame 50 as a hinge. The film 52 covers at least the gap between the outer periphery of the diaphragm 51 and the outer frame 50. The connecting rod 13 is connected to the vibration plate 51, for example by gluing. When the motion piece moves, the connecting rod 13 synchronously drives the vibration plate 51 to move. Further, the first diaphragm assembly 5 and the second diaphragm assembly 6 further include an annular frame 53, and the annular frame 53 cooperates with the outer frame 50 to clamp the outer edge of the membrane 52, so as to improve the overall firmness of the diaphragm assemblies and facilitate the assembly and connection of the diaphragm assemblies with the housing assembly 4.

As shown in fig. 4, the yoke assembly 23 of the electromagnetic driving device 2 is connected to the housing assembly 4, and as shown in fig. 4, the yoke assembly 23 includes a convex flange 236, and preferably, both ends of the intermediate magnetic conductive member 230 protrude to the outside of the first magnetic conductive member 231 and the second magnetic conductive member 232 to form the flange 236. The housing component 4 is provided with positioning holes 45, and the flanges 236 are connected in the positioning holes 45, and can be connected with the positioning holes 45 by welding or gluing. Through the matching of the flange 236 and the positioning hole 45, the electromagnetic driving device 2 and the housing component 4 can be firmly connected, and the electromagnetic driving device 2 can be positioned by the positioning hole 45, which is beneficial to improving the assembly precision of the electromagnetic driving device 2 and the housing component 4.

To facilitate the connection of the flange 236 with the positioning hole 45, the housing assembly 4 includes a first housing 46 and a second housing 47 connected to each other, the first housing 46 and the second housing 47 are disposed along the height direction (refer to fig. 5) or the length direction (refer to fig. 11) of the housing assembly 4, both of which include a partial positioning hole 45, and when the two housings are connected, the two housings are spliced to form the complete positioning hole 45. Thus, the positioning holes 45 can be spliced to the outer side of the flange 236 in a splicing mode, and the installation is more convenient.

As shown in fig. 6, a first sound outlet hole 43 communicating with the first front chamber 40 and a second sound outlet hole 44 communicating with the second front chamber 41 are opened in the front end surface 4b of the housing assembly 4, and the front end surface 4b is an end surface of the housing assembly 4 near the free end of the moving piece. The dual diaphragm receiver further includes a sound outlet pipe 7 connected to the housing member 4 and covering the first sound outlet hole 43 and the second sound outlet hole 44. After first vibrating diaphragm subassembly 5 and the vibration of second vibrating diaphragm subassembly 6, the air that is blown is sounded, and simultaneously, sound is sent from the mouth of pipe after gathering in sound pipe 7, can play the effect of gathering the sound, increases the sound pressure level.

It can be understood that the number of the coils 21 is not limited, for example, the coils 21 may be sleeved on only one of the two moving sheets, or the coils 21 may be sleeved on both of the two moving sheets, and the number of the coils 21 sleeved on the same moving sheet may also be one or more.

In some embodiments, as shown in fig. 1 to fig. 3, only the second moving plate 11 of the two moving plates is sleeved with the coil 21 (in other embodiments, the coil 21 may also be sleeved outside the first moving plate 11). The two moving sheets are magnetically connected, and the two moving sheets and the jaw iron assembly 23 are non-magnetically connected, for example, by configuring the housing assembly 4 to be made of non-magnetic material, so that the armature 1 and the jaw iron assembly 23 are non-magnetically connected, or by configuring the armature support 3 of non-magnetic material, and by separating the housing assembly 4 and the armature 1 by the armature support 3, the armature 1 and the jaw iron assembly 23 are non-magnetically connected.

When the armature 1 and the jaw assembly 23 are in non-magnetic conductive connection, the moving piece cannot pass through the shell assembly 4 and the jaw assembly 23 to form a magnetic circuit, magnetic induction lines generated by electrifying the coil 21 are emitted from the moving piece polarized to the N pole, penetrate through an air gap between the two moving pieces and the second magnet 221, enter the moving piece polarized to the S pole, and then return to the N pole in the armature 1 to form the magnetic circuit. At this time, the coil 21 can simultaneously polarize the two moving pieces, and the portions of the two moving pieces located in the magnet assembly 22 are polarized to opposite polarities, so that synchronous opposite vibrations can be achieved. Two vibrating diaphragm subassemblies are also driven and are reverse vibration, and its vibrations that transmit to casing subassembly 4 are just opposite, can reduce the vibrations of two vibrating diaphragm receivers, and work is more steady. In addition, since only one coil 21 needs to be controlled, the control is more convenient.

In some embodiments, as shown in fig. 12, the coils 21 are sleeved outside the first moving sheet 10 and the second moving sheet 11, the first moving sheet 10 and the second moving sheet 11 are connected in a magnetic conductive manner, and the first moving sheet 10 and the second moving sheet 11 are connected in a non-magnetic conductive manner with the yoke assembly 23, at this time, both the coils 21 can polarize both the moving sheets at the same time, so as to drive both the moving sheets to vibrate in opposite directions. When the two coils 21 are energized simultaneously, the driving force can be increased; the coils 21 can also be controlled to work in turn, so that the service life of the whole body is prolonged.

In some embodiments, the coils 21 are sleeved outside the first moving plate 10 and the second moving plate 11, and the first moving plate 10 and the second moving plate 11 are magnetically connected to the jaw iron assembly 23, for example, the housing assembly 4 is made of a magnetic conductive material, the connecting portion 12 of the armature 1 is connected to the housing assembly 4 to achieve the magnetic conductive connection between the moving plates and the jaw iron assembly 23, and in the case that the armature 1 is connected to the housing assembly 4 through the armature support 3, the armature support 3 may be made of a magnetic conductive material, so that the magnetic conductive connection between the two moving plates and the jaw iron assembly 23 is achieved.

When the armature 1 and the yoke assembly 23 are magnetically connected, each of the two moving plates can form a magnetic circuit between the housing assembly 4 and the yoke assembly 23, for example, when the suspended end portion of the moving plate is polarized to N-pole, the magnetic induction line generated by energizing the coil 21 is emitted through the N-pole of the moving plate surrounded by the coil, passes through the air gap and the second magnet 221, enters the intermediate magnetic conductive member 230, and then returns to the other end of the moving plate from the housing assembly 4, forming a magnetic circuit.

In the embodiment where the armature 1 is magnetically connected to the yoke assembly 23, the coil 21 can only polarize the moving sheet surrounded by the coil 21, and at this time, the two coils 21 can independently drive the moving sheet surrounded by the coil to vibrate, that is, the two coils 51 can independently drive the two diaphragm assemblies to vibrate, so that the vibration modes of the diaphragm assemblies are more varied, and the dual-diaphragm receiver has a richer acoustic performance mode. For example, only one diaphragm assembly may vibrate, the other not; for another example, two diaphragm assemblies may be vibrated at intervals; in another example, two diaphragm assemblies may be vibrated simultaneously. When two vibrating diaphragm subassemblies reverse vibration simultaneously, can effectually alleviate the vibrations of two vibrating diaphragm receivers, make its work more steady.

The above-mentioned is only the embodiment of the present invention, and other improvements made on the premise of the concept of the present invention are all regarded as the protection scope of the present invention.

Claims (11)

1. A receiver motor, comprising:

the armature (1) comprises a first moving sheet (10) and a second moving sheet (11) which are oppositely arranged and connected in a magnetic conduction manner, and one ends of the first moving sheet (10) and the second moving sheet (11) are arranged in a hanging manner; and the number of the first and second groups,

the electromagnetic driving device (2) comprises a magnet assembly (22), a jaw iron assembly (23) connected with the magnet assembly (22) and a coil (21) sleeved on the armature (1), wherein the magnet assembly (22) comprises a first magnet (220), a second magnet (221) and a third magnet (222), opposite poles of the first magnet (220) and the second magnet (221) are oppositely arranged, and opposite poles of the second magnet (221) and the third magnet (222) are oppositely arranged;

wherein the first moving piece (10) is arranged between the first magnet (220) and the second magnet (221) in a penetrating way, and the second moving piece (11) is arranged between the second magnet (221) and the third magnet (222) in a penetrating way.

2. A receiver motor according to claim 1, wherein the yoke assembly (23) includes an intermediate magnetic conductive member (230), and a first magnetic conductive member (231) and a second magnetic conductive member (232) respectively connected to both sides of the intermediate magnetic conductive member (230), a first receiving hole (233) is formed between the first magnetic conductive member (231) and the intermediate magnetic conductive member (230), a second receiving hole (234) is formed between the second magnetic conductive member (232) and the intermediate magnetic conductive member (230), the first magnet (220) is disposed in the first receiving hole (233) and connected to the first magnetic conductive member (231), the second magnet (221) is connected to the intermediate magnetic conductive member (230), and the third magnet (222) is disposed in the second receiving hole (234) and connected to the second magnetic conductive member (232).

3. A receiver motor according to claim 2, wherein said intermediate magnetic conductive member (230) is provided with a mounting opening (235) communicating with said first receiving hole (233) and said second receiving hole (234), said second magnet (221) is mounted in said mounting opening (235), and both ends of said second magnet (221) extend into said first receiving hole (233) and said second receiving hole (234), respectively.

4. A receiver motor according to claim 1, characterised in that the coil (21) is connected to the blade assembly (23) and/or the magnet assembly (22).

5. A receiver motor according to claim 1, wherein said armature (1) further comprises a connecting portion (12) connected between said first moving plate (10) and said second moving plate (11), said first moving plate (10), said second moving plate (11) and said connecting portion (12) being integrally formed, said connecting portion (12) being connected to said coil (21); alternatively, the first and second electrodes may be,

the armature (1) further comprises a connecting part (12) connected between the first moving sheet (10) and the second moving sheet (11), the first moving sheet (10), the second moving sheet (11) and the connecting part (12) are integrally formed, the receiver motor further comprises an armature bracket (3) connected with the connecting part (12), and the armature bracket (3) is connected with the coil (21); alternatively, the first and second electrodes may be,

the first moving piece (10) and the second moving piece (11) are independent parts, the receiver motor further comprises an armature support (3) connected between the first moving piece (10) and the second moving piece (11), and the armature support (3) is connected with the coil (21).

6. A receiver motor according to any of claims 1 to 5, characterized in that only one of said first moving blade (10) and said second moving blade (11) is sheathed with said coil (21), or said first moving blade (10) and said second moving blade (11) are both sheathed with said coil (21).

7. A dual diaphragm receiver comprising the receiver motor of any one of claims 1 to 5.

8. The dual-diaphragm receiver of claim 7, further comprising:

a housing assembly (4) having an inner cavity;

the first vibrating diaphragm component (5) is arranged in the inner cavity and connected with the shell component (4); and the number of the first and second groups,

the second diaphragm component (6) is arranged in the inner cavity and connected with the shell component (4), and the first diaphragm component (5) and the second diaphragm component (6) divide the inner cavity into a first front cavity (40), a second front cavity (41) and a rear cavity (42) between the first front cavity (40) and the second front cavity (41);

the receiver motor is installed in the rear cavity (42), a jaw iron assembly (23) of the receiver motor is connected with the shell assembly (4), the first moving sheet (10) is in transmission connection with the first vibrating diaphragm assembly (5), and the second moving sheet (11) is in transmission connection with the second vibrating diaphragm assembly (6).

9. The dual-diaphragm receiver of claim 8, wherein the yoke assembly (23) includes a convex flange (236), the housing assembly (4) defines a positioning hole (45), and the flange (236) is connected to the positioning hole (45).

10. The dual diaphragm receiver of claim 9, wherein the housing member (4) is provided with a first sound outlet (43) communicating with the first front chamber (40) and a second sound outlet (44) communicating with the second front chamber (41), and further comprising a sound outlet tube (7) connected to the housing member (4) and covering the first sound outlet (43) and the second sound outlet (44).

11. A receiver motor according to any of claims 7 to 10, wherein the coil (21) is provided on the outer surface of only one of the first moving plate (10) and the second moving plate (11), and the first moving plate (10) and the second moving plate (11) are magnetically non-conductive connected to the yoke assembly (23); alternatively, the first and second electrodes may be,

the coil (21) is sleeved outside the first moving sheet (10) and the second moving sheet (11), and the first moving sheet (10) and the second moving sheet (11) are in non-magnetic conduction connection with the jaw iron assembly (23); alternatively, the first and second electrodes may be,

the outside of first motion piece (10) with second motion piece (11) all overlaps and is equipped with coil (21), just first motion piece (10) with second motion piece (11) with be magnetic conduction between sword iron subassembly (23) and be connected.

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