CN219304998U - Telephone receiver and electronic equipment - Google Patents

Abstract

The utility model discloses a receiver and electronic equipment. The shell is provided with an inner cavity with one end open; the vibrating diaphragm assembly is arranged in the inner cavity and is connected with the shell; the vibration device comprises a framework relatively fixed with the shell, two groups of magnet assemblies connected with the framework, an armature elastically connected with the framework, an elastic piece connected between the armature and the framework and a coil encircling the outside of the armature, wherein the coil is positioned between the two groups of magnet assemblies; the magnet assembly comprises two magnets which are oppositely arranged at intervals, the two magnets are arranged at two sides of the armature at intervals along the vibration direction, and the two groups of magnet assemblies are magnetized along the vibration direction and have opposite magnetizing directions; the coil is used for driving the armature to translate and vibrate along the vibration direction, and the armature is in transmission connection with the vibrating diaphragm assembly. The telephone receiver has good driving efficiency and sensitivity, the positions and the number of the driving rods can be diversified, and the product performance is richer.

Description

Telephone receiver and electronic equipment

Technical Field

The present utility model relates to an acoustic device, and more particularly, to a receiver and an electronic device.

Background

The receiver is an electroacoustic device for converting an audio electric signal into a sound signal, and is widely used in communication terminal equipment such as mobile phones, fixed phones, hearing aids and the like.

The receivers are generally classified into moving coil receivers and moving coil receivers, and the working principle (physical principle) of the moving coil receivers is similar to that of a conventional moving coil speaker: the voice coil is arranged in a magnetic gap of a permanent magnet magnetic circuit, and is driven by a changed electromagnetic field force (Lorentz force) generated by the changed current to vibrate up and down and drive a vibrating membrane to drive front and back air to generate sound waves. The transduction efficiency of moving coil formula receiver is low, in order to reach certain sensitivity, needs to adopt the permanent magnet that the size is great to produce enough strong magnetic field, leads to vibrator holistic volume great, is difficult to satisfy miniaturized demand, and in addition, its driving efficiency is low, leads to the energy consumption high, influences the duration.

The moving iron type telephone receiver is also called a balanced armature type telephone receiver, and utilizes an electromagnet to generate an alternating magnetic field, the vibrating part is a U-shaped iron sheet, one end of the iron sheet is fixed, the other end of the iron sheet is suspended and penetrated in two permanent magnets, and when a signal passes through a coil, the magnetic field of the iron sheet is changed, so that the suspended end vibrates and drives the vibrating diaphragm to vibrate and sound. Compared with a moving coil type receiver, the receiver has the advantages of small distortion, high sensitivity and smaller volume, but only provides a magnetic field through two permanent magnets, the driving efficiency and the sensitivity are still limited, meanwhile, the iron sheet of the receiver can vibrate only partially, the driving rod is usually connected to the end part with the largest amplitude at the suspension end, the installation position and the number are single, and the product performance is also single.

Accordingly, there is a need for an improvement over the prior art to overcome the deficiencies described in the prior art.

Disclosure of Invention

The utility model aims to provide a receiver and an electronic device, wherein the receiver has good driving efficiency and sensitivity.

In order to achieve the above object, in one aspect, the present utility model provides a receiver, including:

a housing having an inner cavity with an opening at one end;

the vibrating diaphragm assembly is arranged in the inner cavity and is connected with the shell; the method comprises the steps of,

the vibration device comprises a framework relatively fixed with the shell, two groups of magnet assemblies connected with the framework, an armature elastically connected with the framework, an elastic piece connected between the armature and the framework and a coil which surrounds the outside of the armature and is positioned between the two groups of magnet assemblies;

the magnet assembly comprises two magnets which are oppositely arranged at intervals, the two magnets are arranged at two sides of the armature at intervals along the vibration direction, the two groups of magnet assemblies magnetize along the vibration direction, the magnetizing directions of the two magnets of the same group of magnet assemblies are the same, and the magnetizing directions of the magnets of different groups of magnet assemblies are opposite;

the coil is used for driving the armature to translate and vibrate along the vibration direction, and the armature is in transmission connection with the vibrating diaphragm assembly.

Further, the framework and the armature are both made of soft magnetic materials, and after the coil is electrified, the part of the armature in the two groups of magnet assemblies is polarized to two poles with opposite polarities, and a magnetic loop is formed through the framework;

the two magnets of the magnet assembly are connected with the framework, and a magnetic loop is formed through the framework.

Further, the framework is provided with a containing channel arranged along the length direction of the armature, and the two groups of magnet assemblies are arranged in the containing channel;

the framework comprises a base plate which is connected with the shell and seals the opening of the inner cavity; or,

the telephone receiver further comprises a bottom plate which is connected with the shell and seals the opening of the inner cavity, and the framework is connected with the bottom plate.

Further, the receiver further comprises at least two driving rods connected between the armature and the vibrating diaphragm assembly, and the at least two driving rods are arranged at intervals along the length direction of the armature.

Further, two ends of the armature extend to the outside of the framework, and the two ends of the armature are connected with the vibrating diaphragm assembly through the driving rod; or,

and a space is arranged between the coil and the two groups of magnet assemblies on two sides, and the driving rod is arranged in each space.

Further, the vibrating diaphragm assembly comprises an annular frame connected with the inner wall of the shell, a movable plate movably arranged in the annular frame and a film connected with the annular frame and the movable plate, and the driving rod is connected with the movable plate.

Further, the armature is connected to the diaphragm assembly through a driving rod, the coil and one of the two sets of magnet assemblies have a space, and the driving rod is disposed in the space.

Further, the vibration device comprises two coils, wherein the two coils are positioned between the two magnet assemblies and are arranged at intervals along the length direction of the armature, and the armature is connected with the vibrating diaphragm assembly through a driving rod arranged between the two coils.

Further, the vibrating diaphragm assembly comprises an annular frame connected with the inner wall of the shell, a vibrating plate connected with the annular frame and a film connected between the annular frame and the vibrating plate, the vibrating plate comprises an outer frame corresponding to the annular frame, a movable plate arranged in the shell and a hinge connected with the movable plate and the outer frame, and the driving rod is connected with the movable plate.

Further, the vibrating diaphragm assembly divides the inner cavity into a front cavity and a rear cavity, the shell is provided with a sound outlet hole communicated with the outside and the front cavity, and the vibrating device is positioned in the rear cavity.

Further, the vibration device comprises two elastic member groups which are arranged at intervals along the length direction of the armature;

the elastic piece group comprises an elastic piece; or,

the elastic piece group comprises two elastic pieces, and the two elastic pieces are respectively positioned at two sides of the armature.

Further, the elastic piece is made of non-magnetic conductive materials and is made by bending an elastic piece, the elastic piece comprises a first connecting portion connected with the framework, a second connecting portion connected with the armature and elastic portions connected between the first connecting portion and the second connecting portion, and the number of the first connecting portions is two and is located at two ends of the elastic piece.

Further, two groups of elastic pieces are respectively positioned at two ends of the armature; or,

the coil and the two groups of magnet assemblies on two sides are provided with a space, and the two groups of elastic pieces are respectively arranged in the two spaces.

Further, two magnets of the magnet assembly are plate-shaped and are arranged in parallel; the armature is plate-shaped and is arranged in parallel with the magnet, and the thickness direction of the armature is consistent with the vibration direction of the armature.

In another aspect, the utility model also proposes an electronic device comprising a receiver as claimed in any one of the preceding claims.

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

1. in the utility model, the coil of the vibration device surrounds the outside of the armature, the polarization efficiency of the vibration device to the armature is high, the armature is driven by the two groups of magnet assemblies together, the driving efficiency is improved, the vibration sensitivity is higher, and the energy consumption is lower. In addition, the strip-shaped armature can reduce the dimension of the receiver in the height direction, and is beneficial to further miniaturization of the receiver. When vibrating, the whole translation vibration along the direction of vibration of armature, the amplitude of armature arbitrary part is the same, and the hookup location of actuating lever on the armature is more diversified, also can connect more actuating levers simultaneously and vibrate, realizes abundant product performance through the mounted position, the quantity of change actuating lever to and the position and the quantity of elastic component etc..

2. As an improvement, the vibration device comprises two elastic piece groups which are arranged at intervals along the length direction of the armature, so that at least two parts of the armature in the length direction are connected and supported by the elastic pieces, the quality of elastic connection between the armature and the framework is improved, the armature is ensured to translate and vibrate along the vibration direction more stably and reliably, and phenomena such as bending and torsion swing are not easy to occur. Further, when the elastic piece corresponds to the driving rod, the reset force can be provided more directly to drive the armature and the vibrating diaphragm assembly to reset.

Drawings

Fig. 1 is a schematic diagram of the structure of a receiver in embodiment 1 of the present utility model.

Fig. 2 is an exploded view of a receiver in embodiment 1 of the present utility model.

Fig. 3 is a cross-sectional view of a receiver in embodiment 1 of the present utility model.

Fig. 4 is a schematic structural view of a vibration device in embodiment 1 of the present utility model.

Fig. 5 is an exploded view of a vibration device in embodiment 1 of the present utility model.

Fig. 6 is a schematic structural view of a skeleton of a vibration device in embodiment 1 of the present utility model.

Fig. 7 is a sectional view of a vibration device in embodiment 1 of the present utility model.

Fig. 8 is a schematic view of a first magnet assembly of an embodiment of the present utility model forming a magnetic circuit through a armature.

Fig. 9 is an enlarged view of the section I in fig. 3.

Fig. 10 is a cross-sectional view of the receiver in another view in embodiment 1 of the present utility model.

Fig. 11 is a schematic structural view of an elastic member in embodiment 1 of the present utility model.

Fig. 12 is an exploded view of a receiver in embodiment 2 of the present utility model.

Fig. 13 is a sectional view of a receiver in embodiment 2 of the present utility model.

Fig. 14 is a schematic structural diagram of a diaphragm assembly in embodiment 2 of the present utility model.

Fig. 15 is an enlarged view of the section I in fig. 13.

Fig. 16 is a schematic structural view of an elastic member in embodiment 2 of the present utility model.

Fig. 17 is a cross-sectional view of the receiver in another view in embodiment 2 of the present utility model.

Fig. 18 is a sectional view of a receiver in embodiment 3 of the present utility model.

Fig. 19 is a sectional view of a receiver in embodiment 4 of the present utility model.

Fig. 20 is a schematic structural view of a skeleton in embodiment 4 of the present utility model.

Fig. 21 is an exploded view of a receiver in embodiment 5 of the present utility model.

Fig. 22 is a cross-sectional view of a receiver in embodiment 5 of the present utility model.

Fig. 23 is a cross-sectional view of a receiver in embodiment 6 of the present utility model.

Fig. 24 is a schematic structural view of a skeleton of one example of embodiment 6 of the present utility model.

Fig. 25 is a schematic structural view of a skeleton of one example of embodiment 6 of the present utility model.

Fig. 26 is a schematic structural view of a skeleton of one example of embodiment 6 of the present utility model.

Fig. 27 is a schematic structural view of a skeleton of one example of embodiment 6 of the present utility model.

Fig. 28 is a cross-sectional view of a receiver in embodiment 7 of the present utility model.

Fig. 29 is a schematic view showing the structure of a vibration device in embodiment 7 of the present utility model.

Fig. 30 is a sectional view of a vibration device in embodiment 7 of the present utility model.

Fig. 31 is a schematic view showing the structure of an elastic member in embodiment 7 of the present utility model.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not limiting. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "comprising" and "having" and any variations thereof herein are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may 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 may be included in at least one embodiment of the present application. The appearances of such phrases 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. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Example 1

As shown in fig. 1 to 3, a receiver according to a preferred embodiment of the present utility model includes a housing 80, a diaphragm assembly 81, and a vibrating device 83.

The housing 80 is provided with an inner cavity which opens downwardly. The diaphragm assembly 81 is disposed in the inner cavity, and is connected to the housing 80, for vibrating and sounding under the driving of the vibrating device 83.

As shown in fig. 4 to 6, the vibration device 83 includes a frame 1, two sets of magnet assemblies, an armature 4, an elastic member 5, and a coil 6.

The framework 1 and the shell 80 are relatively fixed, and the framework and the shell can be connected by gluing or welding. The frame 1 is provided with a receiving channel 10 extending along the length direction of the armature 4, and two groups of magnet assemblies are arranged in the receiving channel 10 at intervals and are relatively fixed with the frame 1, for example, can be connected with the inner wall of the frame 1 to realize relatively fixation.

In this embodiment, the frame 1 includes a base plate 1a and a frame 13 connected to the base plate 1a, the cross section of the frame 13 is U-shaped, and the opening thereof is connected downward to the base plate 1a, thereby forming a tubular frame 1. The middle part of the frame 13 is provided with a mounting hole 12 penetrating through the front and rear sides 100 thereof, and for convenience of description, as shown in fig. 7 and 8, two outer side surfaces of the frame 13, which are arranged at intervals along the X-axis direction, are referred to as end surfaces 103; two outer side surfaces of the frame 13 spaced apart in the Y-axis direction are referred to as side surfaces 100; the two outer side surfaces of the skeleton 1 disposed at intervals in the Z-axis direction are referred to as an upper surface 101 and a lower surface 102, respectively.

Referring to fig. 6, the portions of the frame 13 at both sides of the mounting hole 12 cooperate with the base plate 1a to form two annular closed tube bodies (a first tube body 14 and a second tube body 15) which are arranged at intervals along the length direction of the armature 4, and the tube holes of the two tube bodies cooperate to form the accommodating passage 10. The two groups of magnet components are respectively arranged in the two tube bodies and are connected with the tube wall.

The two groups of magnet assemblies all comprise two magnets which are arranged at intervals relatively, the two magnets are arranged at two sides of the armature 4 at intervals along the vibration direction, the two groups of magnet assemblies are magnetized along the vibration direction, the magnetizing directions of the two magnets of the same group of magnet assemblies are the same, and the magnetizing directions of the magnets of different groups of magnet assemblies are opposite. The vibration direction is a vibration direction of the armature 4 with respect to the armature 1, that is, a direction along the vibration axis 4a in fig. 7 (a vertical direction in the illustrated case as well).

For convenience of description, the two sets of magnet assemblies will be hereinafter referred to as a first magnet assembly 2 and a second magnet assembly 3, respectively.

As shown in fig. 7, the first magnet assembly 2 includes two first magnets 20 disposed at opposite intervals, and the two first magnets 20 are fixed relative to the frame 1, for example, the first magnets may be connected to the frame 1 by gluing or welding to achieve the relative fixation. The magnetizing directions of the two first magnets 20 are the same, that is, the two first magnets 20 are opposite to each other with opposite poles, and in fig. 7, the two first magnets 20 are all with an upper S pole and a lower N pole.

The second magnet assembly 3 includes two second magnets 30 disposed at opposite intervals, and the two second magnets 30 are fixed relative to the frame 1, for example, the second magnets may be connected to the frame 1 by gluing or welding, so as to achieve the relative fixation. The magnetizing directions of the two second magnets 30 are the same. In fig. 7, both the second magnets 30 have the N pole up and the S pole down.

The first magnet assembly 2 and the second magnet assembly 3 form a coaxial channel in which the armature 4 is in the form of a strip, i.e. the armature 4 is arranged between the two first magnets 20 and the two second magnets 30, obviously the armature 4 is also arranged in the frame 1. The two first magnets 20 and the two second magnets 30 are arranged at intervals in the same direction, and specifically, the two first magnets 20 and the two second magnets 30 are arranged at intervals along the vibration direction. As a preferred embodiment, the first magnet 20 and the second magnet 30 are each made of a permanent magnetic material.

The armature 4 is not in contact with the first and second magnets 20, 30, and has a spacing space 40 between the first and second magnets 20, 30 to provide space for the armature 4 to reciprocate relative to the magnets. The armature 4 is in transmission connection with the vibrating diaphragm assembly 81, and can drive the vibrating diaphragm assembly 81 to blow air to sound when the armature vibrates. Preferably, a driving rod 82 is connected between the armature 4 and the diaphragm assembly 81, and the diaphragm assembly 81 is driven to vibrate by the driving rod 82.

In this embodiment, as shown in fig. 2, 9 and 10, the diaphragm assembly 81 includes an annular frame 810 connected to the inner wall of the housing 80, a movable plate 816 movably disposed in the annular frame 810, and a membrane 812 connecting the annular frame 810 and the movable plate 816. The membrane 812 is attached to the upper surface of the annular frame 810, and the movable plate 816 is attached to the upper surface of the membrane 812. The movable plate 816 has a size smaller than that of the annular frame 810 with a gap between the movable plate and the annular frame 810 so as to be capable of vibrating in the inner hole region of the annular frame 810, and the membrane 812 covers the gap. One end of the driving rod 82 is connected with the armature 4, and the other end is connected with the movable plate 816, and when the armature 4 vibrates, the driving rod 82 drives the vibrating diaphragm assembly 81 to vibrate.

The diaphragm assembly 81 divides the inner cavity into a front cavity 80a and a rear cavity 80b, the housing 80 is provided with a sound outlet 802 communicating the outside with the front cavity 80a, the vibrating device 83 is located in the rear cavity 80b, and when the diaphragm assembly 81 vibrates, sound is transmitted through the sound outlet 802.

The elastic member 5 is used for realizing elastic connection between the armature 4 and the frame 1 and driving the armature 4 to return (return to the equilibrium state), and part of the elastic member is connected with the armature 4 and part of the elastic member is connected with the frame 1. The elastic member 5 enables the armature 4 to move along the vibration direction relative to the frame 1 when being stressed, and when the armature 4 and the frame 1 move relatively, the elastic member 5 is elastically deformed, so as to provide elastic force for driving the armature 4 to reset.

The coil 6 is used to drive the armature 4 to vibrate translationally in a vibration direction relative to the armature 1, when the coil 6 is energized, it polarizes the armature 4 to vibrate the armature 4 relative to the armature 1 under the magnetic fields of the first magnet assembly 2 and the second magnet assembly 3. Specifically, the armature 4 is made of soft magnetic material, and after the coil 6 is energized, the armature 4 can be polarized under the magnetic field of the coil 6, thereby generating magnetism.

As shown in fig. 4 and 7, the coil 6 is disposed in the mounting hole 12, which is located between the first magnet assembly 2 and the second magnet assembly 3 and surrounds the outside of the armature 4, both ends of the armature 4 extend to the outside of the coil 6 and respectively extend between the two first magnets 20 and the two second magnets 30, and when the coil 6 is energized, the portions of the armature 4 located in the first magnet assembly 2 and the second magnet assembly 3 will be polarized to two poles (N pole and S pole) having opposite polarities, respectively, so as to vibrate under the magnetic field with the magnets.

Specifically, referring to fig. 7, when the left end of the armature 4 is polarized to N pole and the right end is polarized to S pole, the first magnet 20 and the second magnet 30 positioned above the armature 4 are homopole-opposite to the armature 4, both exert a magnetic repulsive force on the armature 4, and the first magnet 20 and the second magnet 30 positioned below the armature 4 exert a magnetic attractive force on the armature 4, so that the armature 4 as a whole is moved downward by a downward force when the armature 1 is relatively fixed to the outside. Obviously, when the left end of the armature 4 is polarized as S pole and the right end is polarized as N pole, both ends of the armature 4 will be subjected to upward magnetic force, thereby moving upward. By alternately changing the current direction (for example, alternating current) to the coil 6, the polarities of the two ends of the armature 4 can be alternately changed, so that the armature 4 is subjected to an alternating driving force, and is subjected to translational vibration in the vibration direction relative to the armature 1.

The coil 6 may be arranged to be fixed relative to the armature 1 or to be fixed relative to the armature 4. When the coil 6 is fixed relatively to the bobbin 1, it may be connected to either one of the bobbin 1 and the magnet to achieve the relative fixation to the bobbin 1. The coil 6 is wound around the outside of the armature 4 without being in contact therewith to prevent it from obstructing the vibration of the armature 4. When the coil 6 and the armature 4 are relatively fixed, the coil 6 can be wound outside the armature 4 and connected with the armature 4, and the coil 6 keeps a certain gap with the framework 1 and the magnet and can vibrate along with the armature 4. The coil 6 is connected with the framework 1 and the coil 6 is connected with the armature 4, so that different frequency response curves can be realized, and the product has richer performance so as to meet different requirements.

In this embodiment, the coil 6 of the vibration device 83 surrounds the armature 4, which has high polarization efficiency on the armature 4, and the two sets of magnet assemblies jointly drive the armature 4, so that the driving efficiency is improved, the vibration sensitivity is higher, and the energy consumption is lower.

In addition, compared with the U-shaped armature, the height dimension of the strip-shaped armature 4 is smaller, the processing is more convenient, meanwhile, because the whole armature 4 translates and vibrates, the vibration amplitudes of all parts are the same, and the strip-shaped armature can be connected with the vibrating diaphragm assembly 81 through the driving rod 82, so that the driving rod 82 drives the vibrating diaphragm assembly to vibrate, the driving rod 82 can be arranged at different positions of the armature 4 as required, and the number of the driving rods is not limited to one. The telephone receiver can better meet the diversified requirements on endurance, miniaturization and performance.

In order to enable the armature 4 to reliably drive the movable plate 816 to perform translational vibration, the vibration device 83 includes at least two driving rods 83, and the at least two driving rods 83 are disposed at intervals along the length direction of the armature 4. For example, in this embodiment, two ends of the armature 4 extend to the outside of the skeleton 1, and two ends of the armature 4 are connected to the movable plate 816 of the diaphragm assembly 81 through the driving rod 82, so that the movable plate 816 can vibrate stably up and down, and the sounding quality is improved.

In some embodiments, armature 1 is made of soft magnetic material, and upon energizing coil 6, the N and S poles of armature 4 form a magnetic circuit through armature 1, which is illustrated in fig. 7 by the dashed lines with arrows, with the induction lines emanating from the N poles of armature 4 passing along armature 1 to the S poles. Through the magnetic conduction effect of skeleton 1, can promote magnetic conduction efficiency by a wide margin, the magnetic field utilization ratio that coil 6 circular telegram produced is higher, can further improve sensitivity and the driving efficiency of vibration, further improves the product performance.

Further, the two groups of magnet assemblies also respectively realize a magnetic loop through the framework 1, as shown in fig. 8, the magnetic loop formed by two first magnets 20 through the framework 1 is shown by a dotted line with arrows, so that the utilization rate of the magnetic field of the magnets can be greatly improved, the magnetic conduction efficiency is improved, and the sensitivity and the driving efficiency of the vibration device are further improved. The magnetic circuit of the two second magnets 20 may refer to the magnetic circuit of the first magnet 20, and will not be described here.

In some embodiments, referring to fig. 5, the magnets are each flat plate, with the two magnets of each magnet assembly being disposed in parallel opposition, preferably with the same spacing between the two magnets of the two sets of magnet assemblies. Further preferably, the magnet has a rectangular plate shape. In other embodiments, the magnets may be other shapes.

In some embodiments, the armature 4 is also in a flat plate shape, which is disposed parallel to both the first magnet 20 and the second magnet 30, the flat plate-shaped armature 4 has a smaller thickness and a larger width, and in fig. 5, the X axis is the length direction (left-right direction) of the armature 4, the Y axis is the width direction (front-rear direction) of the armature 4, and the Z axis is the thickness direction (up-down direction) of the armature 4. On the one hand, the smaller thickness of the armature 4 can reduce the interval distance between two oppositely arranged magnets, so that the whole vibration device is flatter and smaller in size. On the other hand, the area of the armature 4 opposite to the magnet is larger, so that the magnetic field of the magnet is fully utilized, the driving force is improved, and obviously, the area of the armature 4 opposite to the magnet is always unchanged in the vibration process because the armature 4 vibrates along the Z axis, and the driving force is more stable. In other embodiments, the armature 4 may have other shapes, which are not listed here.

In order to ensure the reliability of the reciprocating vibration of the armature 4, the vibration device 83 includes two elastic member sets disposed at intervals along the length direction of the armature 4, and each elastic member set includes an elastic member 5. Thus, both parts of the armature 4 in the length direction can be elastically connected with the framework 1, and the armature is more stable in operation. In this embodiment, two elastic pieces 5 are located armature 4 both ends respectively, and elastic piece 5 links to each other with the tip of armature 4 and the tip of skeleton 1, can provide elastic support to the both ends of armature 4, and when armature 4 vibrates, the difficult torsional pendulum that takes place or rocks, can more reliable translational vibration, and the sound production quality of receiver is better.

The elastic piece 5 is made of non-magnetic conductive materials so as not to influence the polarization of the coil 6 to the armature 4 and ensure the reliable operation of the vibration device. The material of the elastic member 5 is preferably beryllium copper or stainless steel spring steel sheet, etc., and has excellent fatigue resistance and anti-falling performance. The structure of the elastic member 5 is not limited, and may be, for example, a spring wire, a spring piece, or the like. As a preferred embodiment, the elastic piece 5 is made of an elastic piece by bending, has good elasticity, can be bonded or welded in a surface bonding mode, is convenient and firm to install, and is more reliable to use.

As shown in fig. 4, 10 and 11, the elastic member 5 is integrally formed by bending a spring sheet, and includes a first connecting portion 50, a second connecting portion 51, and an elastic portion 52 connected between the first connecting portion 50 and the second connecting portion 51. The number of the first connecting parts 50 is two, the two first connecting parts 50 are respectively located at two sides of the armature 4 in the width direction and are respectively connected with two side faces 100 of the skeleton 1, and the elastic piece 5 is connected with the front side face and the rear side face 100 of the skeleton 1 through the two first connecting parts 50, so that the connection stability of the elastic piece 5 can be improved, the number of the elastic pieces 5 required is reduced, and the assembly efficiency is improved.

The second connecting portion 51 is used for connecting with the armature 4, as shown in fig. 3 and 10, the second connecting portion 51 is connected to the lower surface 44 of the armature 4 and is located right below the driving rod 82, and the two positions are correspondingly arranged, so that the elastic piece 5 can provide elastic force for the driving rod 82 more directly, the portion of the armature 4 connected with the driving rod 82 almost coincides with the portion connected with the second connecting portion 51, the suspended portion is small, bending is not easy to occur, and meanwhile, the occupied space is small, and miniaturization is facilitated.

The elastic portion 52 is bent into a U-shaped convex shape, which is advantageous in that the elastic portion 52 is elastically deformed to provide elastic force when vibrating. Preferably, the resilient portion 52 includes one or more U-bends, and in fig. 11, the resilient portion 52 includes 3U-bends.

Since the width direction of the elastic member 5 coincides with the length direction of the armature 4, the armature 4 is less likely to oscillate or twist in the length direction when vibrating.

In some embodiments, referring to fig. 7, a protection pad 7 is further provided between the magnet and the armature 4, and the armature 4 and the magnet are prevented from being in direct contact by the protection pad 7, thereby protecting the armature 4. The protective pad 7 is made of a non-magnetically conductive material, such as aluminum, copper, stainless steel, etc., and can prevent the armature 4 from being attracted to the magnet due to contact therebetween in some extreme conditions. The protection pad 7 may be made of hard material or flexible material, and as a preferred embodiment, the protection pad 7 is made of flexible material, such as silica gel, rubber, etc., which can play a role of buffering, so as to prevent the armature 4 from directly striking the magnet in an extreme state, thereby damaging the armature 4 or the magnet. Through setting up protection pad 7, can make vibrating device fall, receive striking or during work anomaly, still can keep good working property, improve vibrating device's reliability.

As shown in fig. 7, the protection pads 7 are disposed on the surfaces of the two first magnets 20 and the two second magnets 30 facing the armature 4, so that when abnormal conditions, such as falling, impact and the like, occur, even if the armature 4 is displaced to a large extent, the two first magnets are only contacted with the protection pads 7 and cannot be attracted with the magnets, thereby effectively protecting the magnets and the armature 4 and further improving the anti-falling performance of the product.

It will be appreciated that the protection pad 7 may be provided on the armature 4 in addition to the magnets, and that the protection pad 7 may be provided on the upper surface 43 and the lower surface 44 of the armature 4 in the areas corresponding to the magnets, and may also serve as a protection against suction.

Obviously, the protection pad 7 can also be provided on both the magnet and the armature 4.

Example 2

Referring to fig. 12 to 17, the main difference between the present embodiment and embodiment 1 is that in the present embodiment, the diaphragm assembly 81, the driving rod 82, the elastic member 5, and the like are changed.

As shown in fig. 14 and 15, in the present embodiment, the diaphragm assembly 81 includes an annular frame 810 connected to the inner wall of the housing 80, a diaphragm 811, and a film 812 connecting the annular frame 810 and the diaphragm 811. A film 812 is coated on the upper surface of the ring frame 810, and a vibration plate 811 is connected to the film 812. The vibrating plate 811 includes an annular outer frame 815, a movable plate 816 provided in the outer frame 815, and a hinge 813 connected between the movable plate 816 and the outer frame 815. The outer frame 815 of the vibration plate 811 is correspondingly disposed above the annular frame 810 with the outer edge of the film 812 sandwiched therebetween. The movable plate 816 has a size smaller than that of the annular frame 810, one end of which is connected to the outer frame 815 by two hinges 813, and the other end of which is suspended opposite to the outer frame 815 and the annular frame 810, and can vibrate opposite to the annular frame 810 by elastic deformation of the hinges 813. Except for the portion connected by hinge 813, there is a gap between the outer periphery of movable plate 816 and outer frame 815, which is covered by film 812.

In this embodiment, the number of drive rods 82 is one, which is disposed between two magnet assemblies. Specifically, as shown in fig. 12 and 13, there is a space between the coil 6 and the first magnet assembly 2, and the driving rod 82 is disposed in the space. One end of the driving rod 82 is connected to the upper surface 43 of the armature 4, and the other end is connected to the movable plate 816 through the through hole 19 formed in the upper surface 101 of the frame 13. When the armature 4 vibrates under the drive of the coil 6, the driving rod 82 drives the movable plate 816 to vibrate centering on the hinge 813.

It will be appreciated that a space may also be provided between the coil 6 and the second magnet assembly 3, in which case the drive rod 82 is also provided between the second magnet assembly 3 and the coil 6. Preferably, the connection location of the drive rod 82 to the movable plate 816 is closer to the suspended end of the movable plate 816 than to the hinge 813. When the hinge 813 is located at the right end, the driving rod 82 is located in the interval between the first magnet assembly 2 and the coil 6, and when the hinge 813 is located at the left end, the driving rod 82 is located in the interval between the second magnet assembly 3 and the coil 6. Thus, the driving rod 82 can drive the movable plate 816 to vibrate more labor-saving.

In this embodiment, as shown in fig. 16 and 17, the elastic member 5 has a ring shape with a notch 53, and the elastic member 5 has a flat ring shape as a whole.

The two ends of the elastic member 5 are bent to be adjacent and not in contact, thereby forming a notch 53. The middle part and the two end parts of the elastic piece 5 are both flat plates, the middle part and the end parts of the elastic piece 5 are arranged in parallel and opposite, and a U-shaped elastic part 52 is arranged between the middle part and the end parts. One of the middle portion and the two end portions is a first connecting portion 50 for connecting to the armature 1, and the other is a second connecting portion 51 for connecting to the armature 4. In fig. 16 and 17, the elastic member 5 has a first connecting portion 50 at an end portion and a second connecting portion 51 at an intermediate portion.

In order to facilitate the installation of the elastic member 5, as shown in fig. 12 and 17, both end faces 103 of the frame 1 are provided with convex plates 180 which are convex, and the convex plates 180 are arranged in parallel with the base plate 1a at intervals.

The vibration device 83 includes two elastic member sets, each of which includes two elastic members 5 arranged at an upper and lower interval, and in order to make the stress more symmetrical, the two elastic members 5 are symmetrically arranged. The second connection portion 51 of the elastic member 5 is connected to the armature 4 by means of gluing or welding, etc., and the two first connection portions 50 thereof are connected to the outer convex plate 180 of the armature 1. The two elastic members 5 of each elastic member group are connected between the outer convex plate 180 and the armature 4 and between the base plate 1a and the armature 4, respectively.

The two ends of the armature 4 are connected with the framework 1 through two elastic pieces 5 which are arranged at intervals up and down, so that the stability during vibration can be further improved, and the vibration or torsion of the armature 4 is not easy to produce sound along the length direction and the width direction of the armature 4.

Example 3

The main difference between this embodiment and embodiment 2 is that in this embodiment, the number of coils 6 is two, and the driving rod 82 is located between the two coils 6.

As shown in fig. 18, the vibration device 83 includes two coils 6 each located between two magnet assemblies, the two coils 6 being disposed at intervals along the length direction of the armature 4. The number of driving rods 82 is one, which is located between the two coils 6, with one end connected to the armature 4 and the other end connected to the movable plate 816.

Example 4

The main difference between this embodiment and embodiment 1 is that in this embodiment, the structure of the skeleton 1 is different from that in embodiment 1.

As shown in fig. 19 and 20, in the present embodiment, the armature 1 includes a base plate 1a and two connection frames 1b connected to the base plate 1a, the two connection frames 1b being provided at intervals along the length direction of the armature 4. The connection frame 1b has a U-shape, and an open end thereof is connected to the base plate 1a so as to form an annular tubular shape in cooperation with the base plate 1 a. The two connection frames 1b and the base plate 1a are fitted to form two pipe bodies (a first pipe body 14 and a second pipe body 15), and a mounting groove 11 for mounting the coil 6 is formed between the two pipe bodies. The pipe holes of the two pipe bodies are matched to form a containing channel 10 of the framework 1.

The substrate 1a is provided with a coil 6 which is provided with a avoiding groove 1k for accommodating part, and the avoiding groove 1k can play a role of positioning the coil 6 and enable the volume of the coil 6 to be made larger.

Example 5

As shown in fig. 21 and 22, the main difference between this embodiment and embodiment 4 is that in this embodiment, the structure of the diaphragm assembly 81 and the number and positions of the driving rods 82 are different from those in embodiment 4.

In this embodiment, the structure of the diaphragm assembly 81 can be referred to as embodiment 2, and the movable plate 816 vibrates with the hinge 813 as an axis.

There is a space between the coil 6 and the first magnet assembly 2, and the number of drive rods 82 is one, which is arranged in the space. The driving lever 82 has one end connected to the armature 4 and the other end connected to the movable plate 816.

Obviously, the coil 6 may also be spaced from the second magnet assembly 3, and the driving rod 82 is disposed in the space between the coil 6 and the second magnet assembly 3.

Example 6

The main difference between this embodiment and embodiment 1 is the structure of the skeleton 1.

As shown in fig. 23 and 24, in the present embodiment, the armature 1 includes a base plate 1a and two tube bodies (a first tube body 14 and a second tube body 15) connected to the base plate 1a, and the first tube body 14 and the second tube body 15 are each of an integral tubular structure, and are disposed at intervals along the length direction of the armature 4.

Of course, the first pipe body 14 and the second pipe body 15 may be split, for example, pipe bodies shown in fig. 25 and 26, which are formed by connecting two parts.

It is to be understood that the substrate 1a may be provided in a case-like structure in addition to a plate-like structure, and as shown in fig. 27, the outer edge of the substrate 1a shown in fig. 27 is provided with a side case portion 1c extending upward, and is connected to the housing 80 via the side case portion 1 c.

Example 7

As shown in fig. 28 to 31, in the present embodiment, the receiver includes a housing 80, a base plate 84, a diaphragm assembly 81, two driving levers 82, and a vibrating device 83.

A bottom plate 84 is attached to the bottom of the housing 80, which encloses the open end of the cavity, and a diaphragm assembly 81, a drive rod 82, and a vibrating device 83 are disposed within the cavity.

In this embodiment, the structure of the diaphragm assembly 81 is the same as that of embodiment 1, and the movable plate 816 is movably disposed in the annular frame 810 and connected to the annular frame 810 through the membrane 812.

The structure of the vibration device 83 can be referred to embodiment 4, and the main difference is that two connection frames 1b are provided at both ends of the substrate 1a, and the width of the substrate 1a is the same as the width of the connection frame 1b, while the substrate 1a is not provided with the escape groove 1k. The base plate 1a of the vibration device 83 is fixedly connected to the bottom plate 84.

The two ends of the coil 6 and the corresponding magnet assemblies are provided with intervals, and the two driving rods 82 are respectively arranged in the two intervals, namely, the two driving rods 82 are respectively arranged between the coil 6 and the first magnet assembly 2 and between the coil 6 and the second magnet assembly 3. When the armature 4 vibrates, the two driving rods 82 cooperate to drive the movable plate 816 to vibrate up and down.

In this embodiment, as shown in fig. 30 and 31, two first connection portions 50 of the elastic member 5 are located at both sides of the second connection portion 51, the first connection portion 50 and the second connection portion 51 are each in a sheet shape and perpendicular to each other, and an elastic portion 52 bent in the thickness direction of the elastic member 5 is provided between the first connection portion 50 and the second connection portion 51. The elastic portion 52 has two U-shaped bends. The two first connection portions 50 of the elastic member 5 extend in a direction perpendicular to the thickness direction of the elastic member 5 and are respectively connected to both front and rear side surfaces of the base plate 1a, and the second connection portion 51 is connected to the lower surface 44 of the armature 4.

Referring to fig. 28, two elastic members 5 are respectively located directly under the two driving rods 82 to enhance stability and reliability of vibration of the armature 4.

As shown in fig. 29 and 30, grooves 1j are formed on the front and rear surfaces of the substrate 1a, and the first connecting portion 50 is disposed in the first groove 1j, so that the first groove 1j can position and provide a connecting surface for the elastic member 5, and meanwhile, the elastic member 5 does not exceed the side surface of the frame 1, so that the volume of the vibration device can be reduced.

It will be appreciated that the foregoing description is only illustrative of the structure of several types of receivers, and that other embodiments of the receivers are possible based on the principles of the present utility model.

The utility model also proposes an electronic device comprising a receiver as described above. The electronic device may be, for example, a cell phone, telephone, hearing aid, earphone, helmet, etc.

The foregoing is merely exemplary of the utility model and other modifications can be made without departing from the scope of the utility model.

Claims (15)

1. A receiver, comprising:

a housing (80) having an inner cavity with an opening at one end;

the vibrating diaphragm assembly (81) is arranged in the inner cavity and is connected with the shell (80); the method comprises the steps of,

the vibration device (83) comprises a framework (1) which is relatively fixed with the shell (80), two groups of magnet assemblies connected with the framework (1), an armature (4) which is elastically connected with the framework (1), an elastic piece (5) which is connected between the armature (4) and the framework (1), and a coil (6) which surrounds the armature (4) and is positioned between the two groups of magnet assemblies;

the magnet assembly comprises two magnets which are oppositely arranged at intervals, the two magnets are arranged at two sides of the armature (4) at intervals along the vibration direction, the two groups of magnet assemblies magnetize along the vibration direction, the magnetizing directions of the two magnets of the same group of magnet assemblies are the same, and the magnetizing directions of the magnets of different groups of magnet assemblies are opposite;

the coil (6) is used for driving the armature (4) to perform translational vibration along the vibration direction, and the armature (4) is in transmission connection with the vibrating diaphragm assembly (81).

2. A receiver as claimed in claim 1, characterized in that the armature (1) and the armature (4) are both made of soft magnetic material, and that the armature (4) is polarized to two poles of opposite polarity in the portions of the two sets of magnet assemblies after the coil (6) is energized, and a magnetic circuit is formed by the armature (1);

the two magnets of the magnet assembly are connected with the framework (1), and a magnetic loop is formed through the framework (1).

3. The telephone receiver according to claim 1, characterized in that the armature (1) is provided with a receiving channel (10) arranged along the length direction of the armature (4), both sets of magnet assemblies being arranged in the receiving channel (10);

the framework (1) comprises a base plate (1 a) which is connected with the shell (80) and seals the opening of the inner cavity; or,

the receiver further comprises a bottom plate (84) connected with the shell (80) and sealing the opening of the inner cavity, and the framework (1) is connected with the bottom plate (84).

4. The receiver of claim 1 further comprising at least two drive rods (82) connected between the armature (4) and the diaphragm assembly (81), at least two of the drive rods (82) being spaced apart along the length of the armature (4).

5. The telephone receiver according to claim 4, characterized in that both ends of the armature (4) extend to the outside of the frame (1), both ends of the armature (4) being connected to the diaphragm assembly (81) via the driving rod (82); or,

the coil (6) and the two groups of magnet assemblies on two sides are provided with intervals, and the driving rod (82) is arranged in each interval.

6. The receiver of any of claims 4 to 5, wherein the diaphragm assembly (81) comprises an annular frame (810) coupled to an inner wall of the housing (80), a movable plate (816) movably disposed within the annular frame (810), and a membrane (812) connecting the annular frame (810) and the movable plate (816), the driving rod (82) being coupled to the movable plate (816).

7. A receiver as claimed in claim 1, characterized in that the armature (4) is connected to the diaphragm assembly (81) by means of a drive rod (82), the coil (6) and one of the two sets of magnet assemblies having a spacing, the drive rod (82) being arranged in the spacing.

8. A receiver as claimed in claim 1, characterized in that the vibration means (83) comprise two coils (6), both coils (6) being located between the two magnet assemblies and being arranged at intervals along the length of the armature (4), the armature (4) being connected to the diaphragm assembly (81) by means of a drive rod (82) arranged between the two coils (6).

9. The telephone receiver according to claim 7 or 8, wherein the diaphragm assembly (81) comprises an annular frame (810) connected to an inner wall of the housing (80), a diaphragm (811) connected to the annular frame (810), and a film (812) connected between the annular frame (810) and the diaphragm (811), the diaphragm (811) comprising an outer frame (815) corresponding to the annular frame (810), a movable plate (816) provided in the outer frame (815), and a hinge (813) connecting the movable plate (816) and the outer frame (815), the driving lever (82) being connected to the movable plate (816).

10. The telephone receiver according to any one of claims 1 to 5, 7 and 8, wherein the diaphragm assembly (81) divides the inner cavity into a front cavity (80 a) and a rear cavity (80 b), the housing (80) is provided with an acoustic outlet (802) communicating the outside with the front cavity (80 a), and the vibrating device (83) is located in the rear cavity (80 b).

11. The telephone receiver according to any one of claims 1 to 5, 7, 8, characterized in that said vibrating means (83) comprises two groups of elastic elements spaced apart along the length of said armature (4);

the elastic member group comprises an elastic member (5); or,

the elastic piece group comprises two elastic pieces (5), and the two elastic pieces (5) are respectively positioned at two sides of the armature (4).

12. The telephone receiver according to claim 11, wherein the elastic member (5) is made of a non-magnetic conductive material and is made by bending a spring sheet, and comprises a first connecting portion (50) connected with the frame (1), a second connecting portion (51) connected with the armature (4), and elastic portions (52) connected between the first connecting portion (50) and the second connecting portion (51), wherein the number of the first connecting portions (50) is two, and the first connecting portions are positioned at two ends of the elastic member (5).

13. A receiver as claimed in claim 11, characterized in that two sets of said elastic members are located at each end of said armature (4); or,

the coil (6) and the two groups of magnet assemblies on two sides are provided with a space, and the two groups of elastic pieces are respectively arranged in the two spaces.

14. A receiver as claimed in any one of claims 1 to 5, 7, 8, wherein both magnets of the magnet assembly are plate-shaped and arranged in parallel; the armature (4) is plate-shaped and is arranged parallel to the magnet, and the thickness direction of the armature (4) is consistent with the vibration direction.

15. An electronic device comprising a receiver as claimed in any one of claims 1 to 14.

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