CN219287714U - Speaker assembly and electronic equipment - Google Patents

Abstract

The present disclosure relates to a speaker assembly and an electronic device. Wherein, the speaker assembly includes: a vibrating diaphragm; the vibrating coil is arranged on the breadth of the vibrating diaphragm and is suitable for driving the vibrating diaphragm to vibrate; the magnetic element array is arranged opposite to the breadth of the vibrating diaphragm and comprises a plurality of minimum magnetic elements, and any two adjacent minimum magnetic elements are arranged at intervals; and magnetism isolating piece, magnetism isolating piece set up in magnetism isolating piece array one side of keeping away from the vibrating diaphragm, magnetism isolating piece includes: a plurality of stacked magnetically isolated layers. The magnetic field in the loudspeaker assembly is specially designed, the plurality of magnetic pieces are arranged according to the magnetic piece array, and the magnetic field has unidirectionality through the arrangement mode, so that the overflow magnetic field is reduced. The loudspeaker assembly of the present disclosure further includes a magnetism isolating member, and the magnetism isolating member is provided to reduce the interference of the speaker assembly caused by the outside more effectively, thereby achieving the effect of noise reduction.

Description

Speaker assembly and electronic equipment

Technical Field

The disclosure relates to the technical field of sound emitting devices, and in particular relates to a loudspeaker assembly and electronic equipment.

Background

Along with the development of science and technology, electronic devices such as smart phones and Bluetooth headphones are rapidly popularized, so that the development of society is greatly promoted by the electronic devices, and the life of people is also facilitated. More and more users select headphones to be matched with the smart phone, and through the headphones, the users can talk or listen to music and the like. The speaker assembly is an important component in electronic devices such as headphones, the speaker assembly itself has a magnetic field, and the external magnetic field may interfere with the magnetic field of the speaker assembly itself.

In the using process of the earphone, the magnetic field of the earphone, the high-power output of the battery of the electronic equipment, the electromagnetic field of the main board of the electronic equipment and the like can interact with the magnetic field of the earphone loudspeaker, so that the loudspeaker is influenced to work, the loudspeaker generates current sound or other noise, and the using experience of a user is reduced.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a speaker assembly and an electronic device.

According to a first aspect of embodiments of the present disclosure, there is provided a speaker assembly comprising: a vibrating diaphragm; the vibrating coil is arranged on the breadth of the vibrating diaphragm and is suitable for driving the vibrating diaphragm to vibrate; the magnetic element array is arranged opposite to the breadth of the vibrating diaphragm and comprises a plurality of minimum magnetic elements, and any two adjacent minimum magnetic elements are arranged at intervals; and magnetism isolating piece, magnetism isolating piece sets up magnetism isolating piece array is kept away from one side of vibrating diaphragm, magnetism isolating piece includes: a plurality of stacked magnetically isolated layers.

In some embodiments, the plurality of smallest magnetic pieces includes: the first minimum magnetic pieces and the second minimum magnetic pieces are alternately arranged one by one and are arranged at intervals, the direction of magnetic induction lines in the first minimum magnetic pieces is parallel to the breadth of the vibrating diaphragm, and the direction of magnetic induction lines in the second minimum magnetic pieces is perpendicular to the breadth of the vibrating diaphragm; the magnetic induction lines in any two adjacent first minimum magnetic parts are opposite in direction, and the magnetic induction lines in any two adjacent second minimum magnetic parts are opposite in direction.

In some embodiments, the array of magnetic elements comprises: a first end facing the diaphragm and a second end facing away from the diaphragm, wherein the magnetic field strength of the first end is greater than the magnetic field strength of the second end.

In some embodiments, the ratio of the magnetic field strength of the first end to the magnetic field strength of the second end is not less than 3.

In some embodiments, the magnetism isolating member is configured as a magnetism isolating cover and covers at least a portion of the array of magnetism isolating members.

In some embodiments, the plurality of magnetically isolated layers comprises: and a stacked first magnetically isolated layer and second magnetically isolated layer, one of the first magnetically isolated layer and the second magnetically isolated layer being configured as a reflective layer adapted to reflect electromagnetic waves, the other of the first magnetically isolated layer and the second magnetically isolated layer being configured as an electromagnetic wave absorbing layer.

In some embodiments, the first magnetically isolated layer is the absorber layer and the second magnetically isolated layer is the reflector layer, the absorber layer being closer to the array of magnetic elements than the reflector layer.

In some embodiments, the absorbing layer is a mixed layer of ferroferric oxide nanoparticles and graphene, and the reflecting layer is a layer of ferroferric oxide nanoparticles.

In some embodiments, the thickness of the absorbent layer is 0.2mm to 0.3mm.

In some embodiments, the magnetic shield comprises: the magnetic element array comprises a body part and a flanging part, wherein the flanging part is arranged on the periphery of the body part and extends towards the vibrating diaphragm, and the body part and the flanging part define an accommodating space for covering at least part of the magnetic element array.

In some embodiments, the two side surfaces of the diaphragm are both provided with the magnetic element arrays, the magnetic element arrays on two sides of the diaphragm are symmetrically arranged with the diaphragm as a symmetry plane, and one side, far away from the diaphragm, of at least one of the two magnetic element arrays is provided with the magnetism isolating element.

In some embodiments, the area of the orthographic projection of the first minimal magnetic element on the width of the diaphragm is larger than the area of the orthographic projection of the second minimal magnetic element on the width of the diaphragm, and the orthographic projection of the vibrating coil on the width of the diaphragm is located in the orthographic projection of the first minimal magnetic element on the width of the diaphragm.

According to a second aspect of embodiments of the present disclosure, there is provided an electronic product, comprising: a loudspeaker assembly as claimed in any one of the first aspects.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: the magnetic field in the loudspeaker assembly is specially designed, the plurality of magnetic pieces are arranged according to the magnetic piece array, and the magnetic field has unidirectionality through the arrangement mode, so that the overflow magnetic field is reduced. The loudspeaker assembly of the present disclosure further includes a magnetism isolating member, and the magnetism isolating member is provided to reduce the interference of the speaker assembly caused by the outside more effectively, thereby achieving the effect of noise reduction.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram of a speaker assembly, according to an example embodiment.

Fig. 2 is a schematic diagram of a vibrating coil shown in accordance with an exemplary embodiment.

FIG. 3 is a schematic diagram illustrating an array of magnetic elements according to an exemplary embodiment.

Fig. 4 is a schematic diagram of a magnetic member according to an exemplary embodiment.

Fig. 5 is a block diagram of an electronic device, according to an example embodiment.

Reference numerals:

1. a speaker assembly; 11. a vibrating diaphragm; 12. a vibrating coil; 13. an array of magnetic elements; 131. a minimum magnetic member; 1311. a first minimal magnetic element; 1312. a second minimal magnetic element; 14. a magnetism isolating member; 141. a first magnetically isolated layer; 142. a second magnetically isolated layer; 143. a body portion; 144. a burring part; 145. an accommodation space; 100. an electronic device.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

Along with the development of science and technology, electronic devices such as smart phones and Bluetooth headphones are rapidly popularized, so that the development of society is greatly promoted by the electronic devices, and the life of people is also facilitated. The speaker assembly is an important component in an electronic device, such as a mobile phone, and the speaker is one of the important speaker assemblies in the mobile phone. A loudspeaker is a very common electroacoustic transducer element which is found in sound-producing electronic and electrical devices. Currently, in electronic devices, speakers generally have only a function of converting an electric signal into an acoustic signal.

The loudspeaker, also called loudspeaker, is widely used as an electroacoustic transducer in electronic devices such as sound boxes, headphones, mobile phones and the like. The current speakers can be classified into moving coil speakers, moving iron speakers, and planar diaphragm speakers in terms of operation principle. The moving-coil loudspeaker has the advantages of simple structure, mature process and good performance, but has the defects of large vibration mass, poor transient characteristic, different degrees of swinging vibration generated by mass distribution, film compliance and asymmetric distribution of BL electromagnetic driving force, serious peak-valley generated by high-frequency response caused by split vibration of different frequencies, high product distortion caused by the nonlinear problem of the moving-coil loudspeaker and serious deterioration of acoustic performance. Moving iron type loudspeaker has the advantages of good transient response and high efficiency, but has the disadvantages of large distortion and narrow frequency response, and is commonly used in hearing aids.

At present, more and more users select headphones to be matched with a smart phone, and through the headphones, the users can talk or listen to music and the like. In the using process of the earphone, the magnetic field of the earphone or the high-power output of the battery of the electronic equipment and the electromagnetic field of the main board of the electronic equipment can interact with the magnetic field of the earphone loudspeaker, so that the loudspeaker is influenced to work, and the loudspeaker generates current sound and noise. Traditional scheme need carry out electromagnetic shield to loudspeaker, relies on physical material to separate the magnetism shielding mostly to it is limited to separate magnetism, and to separate the magnetic material requirement higher, to product space and design requirement higher.

In order to obtain better sound quality, the prior art generally performs electromagnetic shielding on the loudspeaker, and the loudspeaker is subjected to magnetic shielding by physical materials. The magnetic isolation in this way is limited, and the requirements on the magnetic isolation material and the product space and design are high.

Planar diaphragm technology has also emerged in the prior art. A planar diaphragm loudspeaker applying planar diaphragm technology integrates a planar voice coil on the surface of a diaphragm and places the diaphragm in a magnetic field environment generated by a magnetic assembly. When an alternating current signal is passed through the coil, the coil is forced to drive the vibrating diaphragm to make reciprocating motion, so that the air density change is caused to sound. However, the magnetic field generated by the magnetic component of the conventional planar diaphragm loudspeaker is unreasonable, so that the magnetic field intensity at the coil is weaker, the sensitivity of the planar diaphragm loudspeaker is insufficient, or the magnetic induction lines are unevenly distributed and have poorer linearity; or the magnetic component is not provided with an air circulation channel inside, so that the magnetic component has larger obstruction to air flow. These factors result in serious distortion and poor sound quality of the audio output by the conventional planar diaphragm loudspeaker.

In order to solve the above technical problems, embodiments according to the present disclosure provide a speaker assembly and an electronic device.

Fig. 1 is a schematic diagram of a speaker assembly, according to an example embodiment. Fig. 2 is a schematic diagram of a vibrating coil shown in accordance with an exemplary embodiment. Fig. 3 is a schematic diagram of an array of halbach magnets shown according to an exemplary embodiment. Fig. 4 is a schematic diagram of a magnetic member according to an exemplary embodiment.

As shown in fig. 1, the present disclosure provides a speaker assembly 1. Wherein the speaker assembly 1 may comprise: the diaphragm 11 and the vibrating coil 12. In the present disclosure, the vibration coil 12 may be provided on the web of the diaphragm 11, and the vibration coil 12 is adapted to drive the diaphragm 11 to vibrate.

In some embodiments, the vibrating coil 12 is printed, either vapor deposited, or 3D printed on the web of the diaphragm 11. The loudspeaker assembly 1 comprises a vibrating coil assembly comprising a plurality of vibrating coils 12 arranged on the same surface of the web of the diaphragm 11. The vibrating diaphragm 11 may have a vibrating coil set on only one surface, or may have vibrating coil sets on both surfaces of the vibrating diaphragm 11, which is not limited herein.

In some embodiments, the speaker assembly 1 may further include: the magnetic element array 13, the magnetic element array 13 may be disposed opposite to the width of the diaphragm 11, and the magnetic element array 13 includes a plurality of minimum magnetic elements 131, and any two adjacent minimum magnetic elements are disposed at intervals. The magnetic element array 13 can generate a stronger magnetic field, and the magnetic field generated by the magnetic element array 13 drives the vibrating diaphragm 11 to vibrate and sound, so that the vibrating diaphragm 11 has the stronger magnetic field, and the sensitivity of controlling the vibrating diaphragm 11 to vibrate is improved; in addition, the magnetic element array 13 allows the magnetic induction lines at the vibrating diaphragm 11 to be uniformly distributed, and the magnetic field change in the vibrating direction of the vibrating diaphragm 11 has good linearity, so that the distortion condition of the audio output by the loudspeaker assembly 1 can be greatly relieved, and the tone quality of the audio output by the loudspeaker assembly 1 can be improved. The vibration of the diaphragm 11 is specifically that the edge of the diaphragm 11 is fixed, and the width of the diaphragm 11 reciprocates in a direction perpendicular to the width of the diaphragm 11.

In the present disclosure, the magnetic element array 13 includes a plurality of minimum magnetic elements 131, and the minimum magnetic elements 131 may be electromagnetic 5 bodies or permanent magnets, but their magnetism remains unchanged. The smallest magnetic element 131 is the smallest constituent unit of the magnetic element array 13,

the plurality of minimum magnetic elements 131 are arranged in a manner satisfying the arrangement rule of the array to form the magnetic element array 13. Wherein any adjacent minimum magnetic pieces 131 are arranged at intervals. Fig. 1 illustrates a case where any adjacent two minimum magnetic members 131 are spaced apart from each other. In the above manner, channels allowing air flow are formed in the magnetic element array 13 to allow air flow in the magnetic element array

The magnetic element array 13 circulates in the element array 13, so that the obstruction of the magnetic element array 13 to the air flow is reduced, the loudspeaker assembly 1 has good air compliance of 0, the distortion condition of the audio output by the loudspeaker assembly 1 is further relieved, and the output of the loudspeaker assembly 1 is improved

And outputting the tone quality of the audio.

In some embodiments, the speaker assembly 1 may further include: magnetism insulator 14, magnetism insulator 14 sets up in magnetism insulator array 13 one side that keeps away from vibrating diaphragm 11, magnetism insulator 14 includes: a plurality of stacked magnetically isolated layers. In the present disclosure, the magnetism barrier 14

Electromagnetic waves can be absorbed and reflected. The position where the magnetism insulator 14 is provided is not particularly limited, and the magnetism insulator 14 may be provided on the side of the magnetic 5-property array 13 away from the diaphragm 11. In the present disclosure, the magnetically isolated member 14 may include a plurality of stacked magnetically isolated layers,

the number of the magnetism blocking layers is not particularly limited.

In some embodiments, the plurality of minimal magnetic members 131 may include: the first minimum magnetic elements 1311 and the second minimum magnetic elements 1312 are alternately arranged one by one and are spaced apart from each other

The direction of magnetic induction lines in the first minimum magnetic piece 1311 is parallel to the breadth of the diaphragm 11, and the direction of magnetic induction lines in the second minimum magnetic piece 13120 is perpendicular to the breadth of the diaphragm 11; wherein the magnets within any adjacent two of the first smallest magnetic members 1311

The induction lines are opposite in direction, and the induction lines in any two adjacent second smallest magnetic pieces 1312 are opposite in direction.

The magnetic induction lines in each of the minimum magnetic elements 131 included in the magnetic element array 13 are single in direction, and the plurality of minimum magnetic elements 131 includes a first minimum magnetic element 1311 and a second minimum magnetic element 1312. First minimal magnetic piece 1311 and second

The two smallest magnetic pieces 1312 are alternately arranged at intervals, and the directions of the magnetic induction lines in the two nearest first smallest magnetic pieces 13115 are opposite, and the directions of the magnetic induction lines in the two nearest second smallest magnetic pieces 1312 are opposite.

In some embodiments, the area of the orthographic projection of the first minimal magnetic element 1311 on the width of the diaphragm 11 is larger than the area of the orthographic projection of the second minimal magnetic element 1312 on the width of the diaphragm 11, and the orthographic projection of the vibrating coil 12 on the width of the diaphragm 11 is located in the orthographic projection of the first minimal magnetic element 1311 on the width of the diaphragm 11.

The direction of the induction lines in the first minimum magnetic element 1311 is parallel to the width of the diaphragm 11, and the direction of the induction lines in the second minimum magnetic element 01312 is perpendicular to the width of the diaphragm 11. The portion of the diaphragm 11 corresponding to the first smallest magnetic element 1311 is located at a magnetic field better than the portion corresponding to the second smallest magnetic element 1312, including the magnetic field strength, the linearity of the magnetic field strength with the change of position, and the uniformity of the distribution of the induction lines. Therefore, the vibration coil 12 is preferably disposed in an area defined by the front projection of the first minimum magnetic element 1311 on the width of the diaphragm 11, specifically, the front projection of the vibration coil 12 on the width of the diaphragm 11 is located in the front projection of the first minimum magnetic element 1311 on the width of the diaphragm 11, so that the vibration coil 12 is in a relatively reasonable magnetic field, to alleviate distortion of the audio output by the speaker assembly 1, and improve the sound quality of the audio output by the speaker assembly 1.

It should be noted that, since the directions of the magnetic induction lines in the two closest first minimum magnetic elements 1311 are opposite, the directions of the currents in the vibration coils 12 corresponding to the two closest first minimum magnetic elements 1311 are opposite, so that the directions of the magnetic forces received by the vibration coils 12 corresponding to the two closest first minimum magnetic elements 1311 are the same, so as to be beneficial to driving the vibrating diaphragm 11 to vibrate and sound.

And, first minimum magnetic element 1311 and second minimum magnetic element 1312 appear as: the area of the orthographic projection of the first minimum magnetic element 1311 on the breadth of the diaphragm 11 is larger than that of the orthographic projection of the second minimum magnetic element 1312 on the breadth of the diaphragm 11, so that the proportion of reasonable magnetic fields in the magnetic field at the position of the diaphragm 11 is increased, namely the proportion of the part of the breadth of the diaphragm 11 corresponding to the first minimum magnetic element 1311 is increased, the rationality of the magnetic field at the position of the diaphragm 11 is improved, the distortion condition of the audio output by the loudspeaker assembly 1 is relieved, and the tone quality of the audio output by the loudspeaker assembly 1 is improved.

In some embodiments, the distance from the surface of the first minimum magnetic element 1311 and the second minimum magnetic element 1312, which are adjacent to the diaphragm 11, to the diaphragm 11 is the same, so as to further improve the reasonability of the magnetic field in which the diaphragm 11 is located, further alleviate the distortion of the audio output by the speaker assembly 1, and improve the sound quality of the audio output by the speaker assembly 1.

In some embodiments, the first minimum magnetic element 1311 and the second minimum magnetic element 1312 may have the same specification, and the first minimum magnetic element 1311 and the second minimum magnetic element 1312 may be placed in different manners, such that the direction of magnetic induction lines in the first minimum magnetic element 1311 is parallel to the width of the diaphragm 11, and the direction of magnetic induction lines in the second minimum magnetic element 1312 is perpendicular to the width of the diaphragm 11; and the area of the orthographic projection of the first minimal magnetic element 1311 on the diaphragm 11 web is larger than the area of the orthographic projection of the second minimal magnetic element 1312 on the diaphragm 11 web. The first minimum magnetic element 1311 and the second minimum magnetic element 1312 with the same specification are adopted, so that the magnetic element array 13 of the embodiment is easier to prepare, and the production difficulty of the magnetic element array 13 is reduced.

Of course, in other embodiments of the present disclosure, the specifications of the first minimum magnetic element 1311 and the second minimum magnetic element 1312 may also be different, and specifically, the dimensions of the first minimum magnetic element 1311 and the second minimum magnetic element 1312 in the direction perpendicular to the width of the diaphragm 11 are the same. Since the portion of the second minimum magnetic element 1312 exceeding the first minimum magnetic element 1311 in the direction perpendicular to the width of the diaphragm 11 contributes less to the magnetic field driving the diaphragm 11 to vibrate and sound in the embodiment in which the first minimum magnetic element 1311 and the second minimum magnetic element 1312 have the same size, the size of the first minimum magnetic element 1311 and the size of the second minimum magnetic element 1312 in the direction perpendicular to the width of the diaphragm 11 are the same, which is advantageous for reducing the volume of the magnetic element array 13, so that the speaker device using the speaker assembly 1 of the present embodiment has a smaller volume, which is advantageous for the miniaturized design of the speaker device, and is particularly suitable for the miniaturized design of the in-ear earphone.

In some embodiments, any adjacent smallest magnetic element 131 may be spaced apart in the array of magnetic elements 13. In the magnetic element array 13, the pitches of any two adjacent minimum magnetic elements 131 are uniform. By the above way, the air flow compliance of each air flow allowing channel in the magnetic element array 13 is consistent, so that the distortion condition of the audio output by the loudspeaker assembly 1 is further relieved, and the tone quality of the audio output by the loudspeaker assembly 1 is improved.

In some embodiments, the array of magnetic elements 13 may comprise: a first end facing the diaphragm 11 and a second end facing away from the diaphragm 11, wherein the magnetic field strength of the first end is greater than the magnetic field strength of the second end. In the present disclosure, the magnetic field strength of the end of the magnetic element array 13 facing the diaphragm 11 is greater than the magnetic field strength of the end of the magnetic element array 13 facing away from the diaphragm 11.

In some embodiments, the ratio of the magnetic field strength at the first end to the magnetic field strength at the second end is not less than 3. In the present disclosure, the ratio of the magnetic field intensity of the end of the magnetic element array 13 facing the diaphragm 11 to the magnetic field intensity of the end of the magnetic element array 13 facing away from the diaphragm 11 is not less than 3.

Therefore, the vibrating coil 12 positioned in the area with higher magnetic field strength can generate larger pushing force under the same current strength, so that the vibration amplitude of the vibrating diaphragm 11 is improved, and the sound of the loudspeaker assembly 1 is more flood; or the vibration coil 12 located in the region where the magnetic field intensity is high is required to obtain the same driving force, the intensity of the current passing through the vibration coil 12 can be smaller, thereby reducing the power consumption of the speaker assembly 1.

In some embodiments, the magnetism isolating member 14 may be configured as a magnetism isolating cover and cover at least part of the magnetism array 13. In the present disclosure, the magnetism insulator 14 may be configured as a magnetism insulator, and the size, shape, and material of the magnetism insulator are not particularly limited. The magnetic shield may shield at least a portion of the array of magnetic elements 13.

In some embodiments, the plurality of magnetically isolated layers may include: the stacked first and second magnetically isolated layers 141 and 142, one of the first and second magnetically isolated layers 141 and 142 being configured as a reflective layer adapted to reflect electromagnetic waves, and the other of the first and second magnetically isolated layers 141 and 142 being configured as an electromagnetic wave absorbing layer. In the present disclosure, the number of the magnetically isolated layers is not particularly limited, and for example, two magnetically isolated layers, that is, a first magnetically isolated layer 141 and a second magnetically isolated layer 142, respectively, may be provided, and the first magnetically isolated layer 141 and the second magnetically isolated layer 142 may be stacked. Among them, one of the first and second magnetically isolated layers 141 and 142 may be configured as a reflective layer adapted to reflect electromagnetic waves, and the other may be configured as an electromagnetic wave absorbing layer adapted to absorb electromagnetic waves.

In some embodiments, the first magnetically isolated layer 141 may be an absorber layer and the second magnetically isolated layer 142 may be a reflector layer, the absorber layer being closer to the array of magnetic elements 13 than the reflector layer. According to classical electromagnetics theory, the shielding effect of materials on electromagnetic waves mainly comprises two parts, namely reflection and absorption. Therefore, in the present disclosure, the first magnetically isolated layer 141 may be configured as an absorption layer, and the second magnetically isolated layer 142 may be configured as a reflection layer, the reflection layer mainly functioning to reflect electromagnetic waves, and the absorption layer mainly functioning to absorb electromagnetic waves.

In some embodiments, the absorbing layer may be a mixed layer of ferroferric oxide nanoparticles and graphene, and the reflecting layer may be a layer of ferroferric oxide nanoparticles. In the present disclosure, the materials of the absorption layer and the reflection layer are not particularly limited, for example, the absorption layer may be a mixed layer of ferroferric oxide nanoparticles and graphene, and the reflection layer may be a ferroferric oxide nanoparticle layer. In such a setting, when the absorption layer is a mixed layer of ferroferric oxide nano particles and graphene, the mixed layer of ferroferric oxide nano particles and graphene mainly plays a role in absorbing electromagnetic waves, and when the ferroferric oxide nano particles are used, the ferroferric oxide nano particles mainly play a role in reflecting electromagnetic waves. After the electromagnetic wave is reflected by the ferroferric oxide nano particle layer, the residual electromagnetic wave which is not reflected is gradually absorbed and consumed by the ferroferric oxide nano particle and graphene mixed layer. After absorption and attenuation of electromagnetic waves in the hybrid material, the electromagnetic waves can be consumed by both electrical and magnetic losses due to the generation of leakage currents in the graphene-based conductive material.

In some embodiments, the thickness of the absorbent layer may be 0.2mm to 0.3mm. In the present disclosure, the thickness of the absorbent layer is not particularly limited, and for example, the thickness of the absorbent layer may be 0.2mm to 0.3mm. Experiments show that the mixed layer of the ferroferric oxide nano particles and the graphene is thinner in thickness and stronger in electromagnetic wave absorption capability.

As shown in fig. 1, in some embodiments, the magnetic shield may comprise: the body portion 143 and the flange portion 144 provided on the outer periphery of the body portion 143 and extending toward the diaphragm 11 define an accommodating space 145 covering at least part of the magnetic element array 13. In the present disclosure, the accommodating space 145 is defined by the body portion 143 and the burring portion 144, and at least a portion of the magnetic element array 13 may be housed in the accommodating space 145.

In some embodiments, the two sides of the diaphragm 11 may be provided with magnetic element arrays 13, the magnetic element arrays 13 on two sides of the diaphragm 11 are symmetrically disposed with the diaphragm 11 as a symmetry plane, and a side of at least one of the two magnetic element arrays 13 away from the diaphragm 11 is provided with a magnetic isolation element 14.

In the present disclosure, the two sides of the diaphragm 11 are provided with the magnetic element arrays 13, and the magnetic element arrays 13 of the two sides of the diaphragm 11 are symmetrically arranged with the diaphragm 11 as a symmetry plane, so that the magnetic forces of the magnetic element arrays 13 of the two sides of the diaphragm 11 acting on the same position of the diaphragm 11 have the same acting force direction. The magnetic element arrays 13 are arranged on the two sides of the diaphragm 11 to further enhance the intensity of the magnetic field where the diaphragm 11 is positioned, so that the sensitivity of controlling the vibration of the diaphragm 11 is further improved, and the tone quality of the audio output by the loudspeaker assembly 1 is improved.

The magnetic element arrays 13 on two sides of the diaphragm 11 are symmetrically arranged by taking the diaphragm 11 as a symmetry plane, which means that magnetic fields generated by the magnetic element arrays 13 on two sides of the diaphragm 11 are symmetrical, and the magnetic induction lines of the magnetic fields where the diaphragm 11 is positioned are more uniformly distributed, and the magnetic field intensity variation in the vibration direction of the diaphragm 11 has better linearity; and means that the channels allowing the air flow to circulate in the magnetic element arrays 13 on the two sides of the diaphragm 11 are symmetrical, i.e. the magnetic element arrays 13 on the two sides of the diaphragm 11 show uniform compliance to the air flow. By the mode, the second harmonic distortion and the third harmonic distortion of the vibrating diaphragm 11 are relieved, the distortion of the audio output by the loudspeaker assembly 1 is further relieved, and the tone quality of the audio output by the loudspeaker assembly 1 is improved.

As shown in fig. 3, in some embodiments, the array of magnetic elements 13 on both sides of the diaphragm 11 includes 7 minimum magnetic elements 131, including 4 first minimum magnetic elements 1311 and 3 second minimum magnetic elements 1312. Of course, in other embodiments of the present utility model, the magnetic element arrays 13 on both sides of the diaphragm 11 respectively include 3 minimum magnetic elements 131, including 1 first minimum magnetic element 1311 and 2 second minimum magnetic elements 1312; or the magnetic element arrays 13 on both sides of the diaphragm 11 respectively comprise 5 minimum magnetic elements 131, wherein the minimum magnetic elements include 2 first minimum magnetic elements 1311 and 3 second minimum magnetic elements 1312; or the magnetic element arrays 13 on both sides of the diaphragm 11, respectively, include a larger number of minimum magnetic elements 131, which are not limited herein. It will be appreciated that the minimum magnetic elements 131 in the magnetic element array 13 may be fixed in position relative to each other by gluing, mechanical pressing, or fixing to an external structure such as a bracket, and the relative positional relationship between the magnetic element arrays 13 on both sides of the diaphragm 11 and the diaphragm 11 is also fixed.

Fig. 5 is a block diagram of an electronic device, according to an example embodiment.

Based on the same conception, the disclosed embodiments also provide an electronic device 100. In the present disclosure, the electronic device 100 may include: a speaker assembly 1.

The electronic device 100 of the present disclosure may be a headset, a mobile terminal (terminal) including, but not limited to, a mobile station (MobileStation, MS), a mobile terminal device (mobile terminal), a mobile phone (mobile terminal), a handset (handset), a portable device (portable device), etc., which may communicate with one or more core networks via a radio access network (RadioAccessNetwork, RAN), e.g., the mobile terminal may be a mobile phone (or "cellular" phone), a computer with wireless communication capabilities, etc., and the mobile terminal may also be a portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile device or equipment. For example, the electronic device 100 provided by the present disclosure may be a bluetooth headset.

Referring to fig. 5, the electronic device 100 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816.

The processing component 802 generally controls overall operation of the electronic device 100, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interactions between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the electronic device 100. Examples of such data include instructions for any application or method operating on the electronic device 100, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power component 806 provides power to the various components of the electronic device 100. Power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for electronic device 100.

The multimedia component 808 includes a screen between the electronic device 100 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. When the electronic device 100 is in an operational mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 100 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 further includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of the electronic device 100. For example, the sensor assembly 814 may detect an on/off state of the electronic device 100, a relative positioning of the components, such as a display and keypad of the electronic device 100, the sensor assembly 814 may also detect a change in position of the electronic device 100 or a component of the electronic device 100, the presence or absence of a user's contact with the electronic device 100, an orientation or acceleration/deceleration of the electronic device 100, and a change in temperature of the electronic device 100. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communication between the electronic device 100 and other devices, either wired or wireless. The electronic device 100 may access a wireless network based on a communication standard, such as WiFi,2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the electronic device 100 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer-readable storage medium is also provided, such as memory 804 including instructions executable by processor 820 of electronic device 100 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

It is understood that the term "plurality" in this disclosure means two or more, and other adjectives are similar thereto. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It is further understood that the terms "first," "second," and the like are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the expressions "first", "second", etc. may be used entirely interchangeably. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It will be further understood that the terms "center," "longitudinal," "transverse," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing the present embodiments and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation.

It will be further understood that "connected" includes both direct connection where no other member is present and indirect connection where other element is present, unless specifically stated otherwise.

It will be further understood that although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims (13)

1. A speaker assembly, comprising:

a vibrating diaphragm;

the vibrating coil is arranged on the breadth of the vibrating diaphragm and is suitable for driving the vibrating diaphragm to vibrate;

the magnetic element array is arranged opposite to the breadth of the vibrating diaphragm and comprises a plurality of minimum magnetic elements, and any two adjacent minimum magnetic elements are arranged at intervals; and

magnetism isolating piece, magnetism isolating piece sets up magnetism isolating piece array is kept away from one side of vibrating diaphragm, magnetism isolating piece includes: a plurality of stacked magnetically isolated layers.

2. A loudspeaker assembly according to claim 1, wherein,

the plurality of minimum magnetic members includes: the first minimum magnetic pieces and the second minimum magnetic pieces are alternately arranged one by one and are arranged at intervals, the direction of magnetic induction lines in the first minimum magnetic pieces is parallel to the breadth of the vibrating diaphragm, and the direction of magnetic induction lines in the second minimum magnetic pieces is perpendicular to the breadth of the vibrating diaphragm; wherein the method comprises the steps of

The directions of magnetic induction lines in any two adjacent first minimum magnetic parts are opposite, and the directions of magnetic induction lines in any two adjacent second minimum magnetic parts are opposite.

3. A loudspeaker assembly according to claim 2, wherein,

the array of magnetic elements includes: a first end facing the diaphragm and a second end facing away from the diaphragm, wherein the magnetic field strength of the first end is greater than the magnetic field strength of the second end.

4. A loudspeaker assembly according to claim 3, wherein,

the ratio of the magnetic field strength of the first end to the magnetic field strength of the second end is not less than 3.

5. A loudspeaker assembly according to claim 1, wherein,

the magnetism isolating member is configured as a magnetism isolating cover and covers at least part of the magnetic member array.

6. A loudspeaker assembly according to claim 1, wherein,

the plurality of magnetically isolated layers includes: and a stacked first magnetically isolated layer and second magnetically isolated layer, one of the first magnetically isolated layer and the second magnetically isolated layer being configured as a reflective layer adapted to reflect electromagnetic waves, the other of the first magnetically isolated layer and the second magnetically isolated layer being configured as an electromagnetic wave absorbing layer.

7. A loudspeaker assembly according to claim 6, wherein,

the first magnetically isolated layer is the absorbing layer, the second magnetically isolated layer is a reflecting layer, and the absorbing layer is closer to the array of magnetic elements than the reflecting layer.

8. A loudspeaker assembly according to claim 7,

the absorption layer is a mixed layer of ferroferric oxide nano particles and graphene, and the reflection layer is a ferroferric oxide nano particle layer.

9. The loudspeaker assembly of claim 8 wherein the speaker is configured to receive a speaker signal,

the thickness of the absorption layer is 0.2mm-0.3mm.

10. A loudspeaker assembly according to claim 5, wherein,

the magnetism isolating cover comprises: the magnetic element array comprises a body part and a flanging part, wherein the flanging part is arranged on the periphery of the body part and extends towards the vibrating diaphragm, and the body part and the flanging part define an accommodating space for covering at least part of the magnetic element array.

11. A loudspeaker assembly according to claim 1, wherein,

the vibration diaphragm is characterized in that the magnetic element arrays are arranged on the two side breadth of the vibration diaphragm, the magnetic element arrays on the two sides of the vibration diaphragm are symmetrically arranged by taking the vibration diaphragm as a symmetrical plane, and one side, far away from the vibration diaphragm, of at least one of the two magnetic element arrays is provided with the magnetism isolating element.

12. A loudspeaker assembly according to claim 2, wherein,

the area of the orthographic projection of the first minimum magnetic element on the breadth of the vibrating diaphragm is larger than the area of the orthographic projection of the second minimum magnetic element on the breadth of the vibrating diaphragm, and the orthographic projection of the vibrating coil on the breadth of the vibrating diaphragm is positioned in the orthographic projection of the first minimum magnetic element on the breadth of the vibrating diaphragm.

13. An electronic device, comprising:

a loudspeaker assembly as claimed in any one of claims 1 to 12.

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