CN219287714U - Loudspeaker components and electronics - 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

Loudspeaker components and electronics

technical field

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

Background technique

With the development of science and technology, electronic devices such as smart phones and Bluetooth headsets are rapidly popularized. Electronic devices have greatly promoted the development of society and facilitated people's lives. More and more users choose earphones to be used in conjunction with smart phones. Through the earphones, users can make calls or listen to music. The speaker assembly is an important part of electronic equipment such as earphones. The speaker assembly itself has a magnetic field, and the external magnetic field will interfere with the magnetic field of the speaker assembly itself.

In the process of using the earphone, the magnetic field of the earphone itself, the high power output of the battery of the electronic device, and the electromagnetic field of the motherboard of the electronic device will all interact with the magnetic field of the earphone speaker, thereby affecting the work of the speaker and causing the speaker to generate current sound or other noises. Reduced user experience.

Utility model content

In order to overcome the problems in the related art, the present disclosure provides a speaker assembly and electronic equipment.

According to the first aspect of an embodiment of the present disclosure, there is provided a speaker assembly, including: a diaphragm; a vibrating coil, the vibrating coil is arranged on the width of the vibrating diaphragm, and the vibrating coil is suitable for driving the vibrating diaphragm An array of magnetic elements, the array of magnetic elements is arranged relative to the width of the diaphragm, the array of magnetic elements includes a plurality of minimum magnetic elements, and any adjacent two minimum magnetic elements are all arranged at intervals; and a magnetic spacer , the magnetic isolation element is disposed on the side of the magnetic element array away from the diaphragm, and the magnetic isolation element includes: a plurality of stacked magnetic isolation layers.

In some embodiments, the plurality of minimum magnetic parts include: a first minimum magnetic part and a second minimum magnetic part, and the first minimum magnetic parts and the second minimum magnetic parts are alternately arranged and spaced from each other It is set that the direction of the magnetic field lines in the first smallest magnetic part is parallel to the web of the diaphragm, and the direction of the magnetic field lines in the second smallest magnetic part is perpendicular to the web of the diaphragm; wherein any adjacent The directions of the magnetic flux lines in the two first smallest magnetic parts are opposite, and the directions of the magnetic flux lines in any adjacent two second smallest magnetic parts are opposite.

In some embodiments, the array of magnetic elements includes: a first end facing the diaphragm and a second end 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 at the first end to the magnetic field strength at the second end is not less than 3.

In some embodiments, the magnetic isolation element is configured as a magnetic isolation cover and covers at least part of the magnetic element array.

In some embodiments, the plurality of magnetic isolation layers include: a stacked first magnetic isolation layer and a second magnetic isolation layer, and one of the first magnetic isolation layer and the second magnetic isolation layer is configured as A reflective layer adapted to reflect electromagnetic waves, and the other of the first magnetic isolation layer and the second magnetic isolation layer is configured as an electromagnetic wave absorption layer.

In some embodiments, the first magnetic isolation layer is the absorption layer, the second magnetic isolation layer is a reflection layer, and the absorption layer is closer to the magnetic element array than the reflection layer.

In some embodiments, the absorbing layer is a mixed layer of Fe3O4 nanoparticles and graphene, and the reflective layer is a layer of Fe3O4 nanoparticles.

In some embodiments, the absorbing layer has a thickness of 0.2mm-0.3mm.

In some embodiments, the magnetic isolation cover includes: a body part and a flange part disposed on the outer periphery of the body part and extending toward the diaphragm, the body part and the flange part define a The accommodating space is at least partly covered by the array of magnetic elements.

In some embodiments, the magnetic element arrays are provided on both sides of the diaphragm, and the magnetic element arrays on both sides of the diaphragm are arranged symmetrically with the diaphragm as a symmetrical plane, and the two At least one of the arrays of magnetic elements is provided with the magnetic isolation element on a side away from the diaphragm.

In some embodiments, the area of the orthographic projection of the first smallest magnetic member on the web of the diaphragm is greater than the area of the orthographic projection of the second smallest magnetic member on the web of the diaphragm, the The orthographic projection of the vibrating coil on the web of the diaphragm is located in the orthographic projection of the first minimum magnetic member on the web of the diaphragm.

According to a second aspect of the embodiments of the present disclosure, there is provided an electronic product, including: the speaker assembly according to any one of the first aspect.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: the magnetic field in the speaker assembly provided by the present disclosure is specially designed, and a plurality of magnetic parts are arranged in an array of magnetic parts, and the magnetic field is unidirectional through this arrangement, Thereby reducing the stray magnetic field. The loudspeaker assembly of the present disclosure also includes a magnetic isolation part, and the interference to the loudspeaker assembly from the outside can be more effectively reduced by arranging the magnetic isolation part, so as to achieve the effect of reducing noise.

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 present disclosure.

Description of 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 loudspeaker assembly according to an exemplary embodiment.

Fig. 2 is a schematic diagram of a vibrating coil according to an exemplary embodiment.

Fig. 3 is a schematic diagram of a magnetic element array according to an exemplary embodiment.

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

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

Reference signs:

1. Loudspeaker assembly; 11. Diaphragm; 12. Vibration coil; 13. Magnetic element array; 131. Minimum magnetic element; 1311. First smallest magnetic element; 1312. Second smallest magnetic element; 14. Magnetic isolation element; 141 142, the second magnetic isolation layer; 143, the body part; 144, the flange part; 145, the accommodation space; 100, the electronic device.

Detailed ways

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

With the development of science and technology, electronic devices such as smart phones and Bluetooth headsets are rapidly popularized. Electronic devices have greatly promoted the development of society and facilitated people's lives. The loudspeaker component is an important part of electronic equipment, for example, in electronic equipment such as mobile phones, the loudspeaker is one of the important loudspeaker components in the mobile phone. The loudspeaker is a very commonly used electro-acoustic transducer device, which can be seen in sound-emitting electronic and electrical equipment. Currently, in electronic devices, speakers generally only have the function of converting electrical signals into acoustic signals.

Loudspeaker, also known as horn, is an electroacoustic transducer widely used in electronic equipment such as speakers, earphones, and mobile phones. Current speakers can be divided into moving coil speakers, moving iron speakers and planar diaphragm speakers in terms of working principles. Among them, the structure of the moving coil speaker is simple, the process is mature, and the performance is good, but the disadvantage is that the vibration mass is large and the transient characteristics are not good, and the mass distribution, the compliance of the membrane and the asymmetric distribution of the BL electromagnetic driving force will produce different degrees. Rocking vibration and split vibration of different frequencies lead to serious peaks and valleys in the high frequency response, and the non-linear problem of the dynamic speaker leads to high distortion of the product and serious deterioration of the acoustic performance. The advantages of moving iron speakers are good transient response and high efficiency, but the disadvantages are large distortion and narrow frequency response, so they are often used in hearing aids.

At present, more and more users choose earphones to be used in conjunction with smart phones. Through the earphones, users can make calls or listen to music. In the process of using the earphone, the magnetic field of the earphone itself, or the high power output of the battery of the electronic device, and the electromagnetic field of the motherboard of the electronic device will interact with the magnetic field of the earphone speaker, thereby affecting the work of the speaker, causing the speaker to produce current sound and murmur. The traditional solution requires electromagnetic shielding of the speaker, relying on physical materials for magnetic isolation shielding, and the magnetic isolation is limited, and the requirements for magnetic isolation materials are high, and the requirements for product space and design are high.

In order to obtain better sound quality, in the prior art, the speaker is usually electromagnetically shielded, and physical materials are mostly used for magnetic isolation shielding. This method has limited magnetic isolation, and has high requirements for magnetic isolation materials, as well as product space and design requirements.

Planar diaphragm technology has also appeared in the prior art. The planar diaphragm speaker using planar diaphragm technology integrates the planar voice coil on the surface of the diaphragm, and places the diaphragm in the magnetic field environment generated by the magnetic components. When an alternating current signal is passed through the coil, the coil is forced to drive the diaphragm to and fro, causing the air density to change and produce sound. However, the current planar diaphragm speaker either has an unreasonable magnetic field generated by its magnetic components, resulting in weak magnetic field strength at the coil, insufficient sensitivity of the planar diaphragm speaker, or uneven distribution of magnetic induction lines and poor linearity; or There is no air circulation channel inside the magnetic assembly, which causes the magnetic assembly to greatly hinder the airflow. All of the above factors lead to serious distortion of the audio output by the current planar diaphragm speaker and poor sound quality.

In order to solve the above technical problems, embodiments of the present disclosure provide a speaker assembly and electronic equipment.

Fig. 1 is a schematic diagram of a loudspeaker assembly according to an exemplary embodiment. Fig. 2 is a schematic diagram of a vibrating coil according to an exemplary embodiment. Fig. 3 is a schematic diagram of a Halbach magnetic element array according to an exemplary embodiment. Fig. 4 is a schematic diagram of a magnetic element according to an exemplary embodiment.

As shown in FIG. 1 , the present disclosure provides a speaker assembly 1 . Wherein, the speaker assembly 1 may include: a diaphragm 11 and a vibrating coil 12 . In the present disclosure, the vibrating coil 12 may be disposed on the width of the vibrating membrane 11 , and the vibrating coil 12 is suitable for driving the vibrating membrane 11 to vibrate.

In some embodiments, the vibration coil 12 is formed on the web of the diaphragm 11 by printing, or by vapor deposition, or by 3D printing. The loudspeaker assembly 1 includes a vibrating coil group, and the vibrating coil group includes a plurality of vibrating coils 12 arranged on the same surface of the diaphragm 11 . The diaphragm 11 may be provided with a vibrating coil group on only one surface, or both sides of the diaphragm 11 may be provided with a vibrating coil group, which is not limited here.

In some embodiments, the loudspeaker assembly 1 may further include: a magnetic element array 13, the magnetic element array 13 may be arranged relative to the width of the diaphragm 11, the magnetic element array 13 includes a plurality of minimum magnetic elements 131, any two adjacent magnetic elements 131 The minimum magnetic parts mentioned above are arranged at intervals. The magnetic element array 13 can generate a strong magnetic field, and the magnetic field generated by the magnetic element array 13 drives the diaphragm 11 to vibrate and sound, so that the diaphragm 11 has a strong magnetic field, which is beneficial to improve the sensitivity of controlling the vibration of the diaphragm 11; and The magnetic element array 13 allows the distribution of the magnetic field lines at the diaphragm 11 to be uniform and the magnetic field change in the vibration direction of the diaphragm 11 has good linearity, which can greatly alleviate the distortion of the audio output from the speaker assembly 1 and improve The sound quality of the audio output from the speaker unit 1. Wherein, 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 smallest magnetic elements 131 may be electromagnets or permanent magnets, but their magnetic properties remain unchanged. The smallest magnetic element 131 is the smallest constituent unit of the magnetic element array 13,

A plurality of minimum magnetic elements 131 are arranged to meet the array regularity to form the magnetic element array 13 . Wherein, any adjacent minimum magnetic pieces 131 are arranged at intervals. FIG. 1 shows the situation that any two adjacent smallest magnetic pieces 131 are spaced apart from each other. Through the above-mentioned way, the channel that allows the flow of air flow is formed in the magnetic member array 13, so as to allow the flow of air flow in the magnetic

Circulation in the element array 13, thereby reducing the obstruction of the magnetic element array 13 to the airflow, so that the speaker assembly 1 has good air compliance, so as to further alleviate the distortion of the audio output from the speaker assembly 1 and improve the output of the speaker assembly 1.

output audio quality.

In some embodiments, the speaker assembly 1 may further include: a magnetic isolation member 14, the magnetic isolation member 14 is disposed on the side of the magnetic member array 13 away from the diaphragm 11, and the magnetic isolation member 14 includes: a plurality of stacked magnetic isolation layers . In this disclosure, the magnetic spacer 14

Can absorb and reflect electromagnetic waves. The position where the magnetic isolation element 14 is disposed is not specifically limited, and the magnetic isolation element 14 may be disposed on a side of the magnetic element array 13 away from the diaphragm 11 . In the present disclosure, the magnetic isolation member 14 may include a plurality of stacked magnetic isolation layers,

The number of magnetic isolation layers is not specifically limited.

In some embodiments, the plurality of minimum magnetic pieces 131 may include: a first minimum magnetic piece 1311 and a second minimum magnetic piece 1312, the first minimum magnetic piece 1311 and the second minimum magnetic piece 1312 are alternately arranged and spaced from each other set up

The direction of the magnetic field lines in the first smallest magnetic part 1311 is parallel to the width of the diaphragm 11, and the direction of the magnetic field lines in the second smallest magnetic part 13120 is perpendicular to the width of the diaphragm 11; wherein any two adjacent Magnetic in a minimum magnetic part 1311

The directions of the induction lines are opposite, and the directions of the magnetic induction lines in any two adjacent second smallest magnetic components 1312 are opposite.

The direction of magnetic flux lines in each of the smallest magnetic elements 131 included in the magnetic element array 13 is single, and the plurality of smallest magnetic elements 131 include a first smallest magnetic element 1311 and a second smallest magnetic element 1312 . The first minimum magnetic member 1311 and the first

The two smallest magnetic pieces 1312 are arranged alternately and spaced from each other, and the directions of the magnetic field lines in the closest two first smallest magnetic pieces 13115 are opposite, and the directions of the magnetic field lines in the closest two second smallest magnetic pieces 1312 on the contrary.

In some embodiments, the area of the orthographic projection of the first smallest magnetic member 1311 on the web of the diaphragm 11 is greater than the area of the orthographic projection of the second smallest magnetic member 1312 on the web of the diaphragm 11, and the vibrating coil 12 is on the diaphragm 11. The orthographic projection of the format of 11 is located in the orthographic projection of the first smallest magnetic member 1311 on the format of the diaphragm 11 .

Wherein, the direction of the magnetic field lines in the first smallest magnetic part 1311 is parallel to the width of the diaphragm 11 , and the direction of the magnetic field lines in the second smallest magnetic part 01312 is perpendicular to the width of the diaphragm 11 . The magnetic field of the part corresponding to the first smallest magnetic part 1311 on the width of the diaphragm 11 is better than that of the part corresponding to the second smallest magnetic part 1312, including the magnetic field strength, the linearity of the magnetic field strength changing with the position, and the uniform distribution of magnetic induction lines sex etc. Therefore, the vibrating coil 12 is preferably arranged in the area defined by the orthographic projection of the first minimum magnetic member 1311 on the diaphragm 11, specifically the orthographic projection of the vibrating coil 12 on the diaphragm 11 is located on the first smallest magnetic member 1311 In the orthographic projection on the diaphragm 11 , the vibrating coil 12 is placed in a reasonable magnetic field to alleviate the distortion of the audio output from the speaker assembly 1 and improve the sound quality of the audio output from the speaker assembly 1 .

It should be noted that, since the directions of the magnetic flux lines in the closest two first smallest magnetic parts 1311 are opposite, the currents in the vibrating coils 12 corresponding to the closest two first smallest magnetic parts 1311 flow in the opposite direction, so that The vibrating coils 12 corresponding to the two nearest first smallest magnetic parts 1311 are subjected to the same magnetic force in the same direction, so as to facilitate driving the diaphragm 11 to vibrate and produce sound.

Moreover, the first smallest magnetic part 1311 and the second smallest magnetic part 1312 are as follows: the area of the orthographic projection of the first smallest magnetic part 1311 on the web of the diaphragm 11 is larger than the area of the orthographic projection of the second smallest magnetic part 1312 on the web of the diaphragm 11 Projected area, thereby increasing the proportion of a reasonable magnetic field in the magnetic field at the diaphragm 11, that is, increasing the proportion of the portion of the diaphragm 11 corresponding to the first minimum magnetic member 1311, which is conducive to improving the rationality of the magnetic field where the diaphragm 11 is located. To alleviate the distortion of the audio output from the speaker assembly 1 and improve the sound quality of the audio output from the speaker assembly 1.

In some embodiments, the distance from the surface of the first smallest magnetic member 1311 and the second smallest magnetic member 1312 adjacent to the diaphragm 11 to the diaphragm 11 is the same, so as to further improve the rationality of the magnetic field where the diaphragm 11 is located, and further The distortion of the audio output from the speaker assembly 1 is alleviated, and the sound quality of the audio output from the speaker assembly 1 is improved.

In some embodiments, the specifications of the first smallest magnetic piece 1311 and the second smallest magnetic piece 1312 may be the same, and the arrangement of the first smallest magnetic piece 1311 and the second smallest magnetic piece 1312 is different, so that the first smallest magnetic piece 1311 The direction of the magnetic field lines inside is parallel to the web of the diaphragm 11, and the direction of the magnetic field lines in the second smallest magnetic member 1312 is perpendicular to the web of the diaphragm 11; and the orthographic projection of the first smallest magnetic member 1311 on the web of the diaphragm 11 The area of is larger than the area of the orthographic projection of the second smallest magnetic member 1312 on the diaphragm 11 frame. Using the first smallest magnetic member 1311 and the second smallest magnetic member 1312 of the same specification makes the magnetic member array 13 of this embodiment easier to manufacture and reduces the production difficulty of the magnetic member array 13 .

Of course, in other embodiments of the present disclosure, the specifications of the first smallest magnetic piece 1311 and the second smallest magnetic piece 1312 may also be different, specifically, the first smallest magnetic piece 1311 and the second smallest magnetic piece 1312 are perpendicular to The dimensions in the direction of the width of the diaphragm 11 are the same. Because in the embodiment in which the specifications of the first minimum magnetic part 1311 and the second minimum magnetic part 1312 are the same, the part of the second minimum magnetic part 1312 that exceeds the first minimum magnetic part 1311 in the direction perpendicular to the width of the diaphragm 11 is for driving The contribution made by the magnetic field of vibrating and sounding of the diaphragm 11 is small, so by reducing the size of the second smallest magnetic member 1312 in the direction perpendicular to the width of the diaphragm 11, the first smallest magnetic member 1311 and the second smallest magnetic member 1312 are The same size in the direction perpendicular to the width of the diaphragm 11 will help reduce the volume of the magnetic element array 13, so that the speaker device using the speaker assembly 1 of this embodiment has a smaller volume, which is beneficial to the volume of the speaker device. Miniaturized design, especially suitable for miniaturized design of in-ear headphones.

In some embodiments, in the magnetic element array 13 , any adjacent minimum magnetic elements 131 may be arranged at intervals. In the magnetic element array 13 , the distance between any two adjacent smallest magnetic elements 131 is the same. Through the above-mentioned method, the compliance of each airflow-permitting channel in the magnetic element array 13 to the airflow is consistent, thereby further reducing the distortion of the audio output from the speaker assembly 1 and improving the sound quality of the audio output from the speaker assembly 1 .

In some embodiments, the magnetic element array 13 may include: a first end facing the vibrating membrane 11 and a second end away from the vibrating membrane 11 , wherein the magnetic field strength of the first end is greater than that 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 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 strength at one end of the magnetic element array 13 facing the diaphragm 11 to the magnetic field strength at the end of the magnetic element array 13 away from the diaphragm 11 is not less than 3.

Thus, the vibrating coil 12 located in the higher magnetic field strength region can produce greater driving force under the same current strength, thereby increasing the vibration amplitude of the diaphragm 11, making the sound of the speaker assembly 1 more loud; To obtain the same driving force for the vibrating coil 12 in the higher area, the intensity of the current passing through the vibrating coil 12 can be smaller, thereby reducing the energy consumption of the loudspeaker assembly 1 .

In some embodiments, the magnetic isolation element 14 may be configured as a magnetic isolation cover and cover at least part of the magnetic element array 13 . In the present disclosure, the magnetic isolation member 14 may be configured as a magnetic isolation cover, and the size, shape, and material of the magnetic isolation cover are not specifically limited. The magnetic isolation cover can cover at least part of the magnetic element array 13 .

In some embodiments, the plurality of magnetic isolation layers may include: a stacked first magnetic isolation layer 141 and a second magnetic isolation layer 142, and one of the first magnetic isolation layer 141 and the second magnetic isolation layer 142 is configured to suitably As a reflective layer that reflects electromagnetic waves, the other one of the first magnetic isolation layer 141 and the second magnetic isolation layer 142 is configured as an electromagnetic wave absorbing layer. In the present disclosure, the number of magnetic isolation layers is not specifically limited. For example, there may be two magnetic isolation layers, namely the first magnetic isolation layer 141 and the second magnetic isolation layer 142, and the first magnetic isolation layer 141 and the second magnetic isolation layer. The two magnetic isolation layers 142 can overlap. Wherein, one of the first magnetic isolation layer 141 and the second magnetic isolation layer 142 can be configured as a reflective layer suitable for reflecting electromagnetic waves, and the other can be configured as an absorbing layer suitable for absorbing electromagnetic waves.

In some embodiments, the first magnetic isolation layer 141 may be an absorption layer, the second magnetic isolation layer 142 may be a reflective layer, and the absorption layer is closer to the magnetic element array 13 than the reflective layer. According to the classical electromagnetic theory, the shielding effect of materials on electromagnetic waves mainly includes two parts: reflection and absorption. Therefore, in the present disclosure, the first magnetic isolation layer 141 can be configured as an absorbing layer, and the second magnetic isolation layer 142 can be configured as a reflective layer. The reflective layer mainly functions to reflect electromagnetic waves, and the absorption layer mainly functions to absorb electromagnetic waves.

In some embodiments, the absorbing layer may be a mixed layer of Fe3O4 nanoparticles and graphene, and the reflective layer may be a layer of Fe3O4 nanoparticles. In the present disclosure, the materials of the absorbing layer and the reflecting layer are not specifically limited. For example, the absorbing layer may be a mixed layer of Fe3O4 nanoparticles and graphene, and the reflective layer may be a layer of Fe3O4 nanoparticles. With such a setting, when the absorption layer is a mixed layer of iron ferric oxide nanoparticles and graphene, the mixed layer of iron ferric oxide nanoparticles and graphene mainly plays the role of absorbing electromagnetic waves. The tri-iron nanoparticle layer mainly plays the role of reflecting electromagnetic waves. After the electromagnetic wave is reflected by the ferroferric oxide nanoparticle layer, the remaining unreflected electromagnetic wave is gradually absorbed and consumed by the mixed layer of ferric oxide nanoparticle and graphene. After the electromagnetic wave is absorbed and attenuated in the hybrid material, the electromagnetic wave can be simultaneously consumed by electrical loss and magnetic loss, which is attributed to the generation of leakage current in the graphene-based conductive material.

In some embodiments, the absorbing layer may have a thickness of 0.2mm-0.3mm. In the present disclosure, the thickness of the absorbing layer is not specifically limited, for example, the thickness of the absorbing layer may be 0.2mm-0.3mm. Experiments show that the mixed layer of iron ferric oxide nanoparticles and graphene is not only thinner, but also has a stronger ability to absorb electromagnetic waves.

As shown in FIG. 1 , in some embodiments, the magnetic isolation cover may include: a body portion 143 and a flange portion 144 disposed on the outer periphery of the body portion 143 and extending toward the diaphragm 11 , the body portion 143 and the flange portion 144 An accommodating space 145 covering at least part of the magnetic element array 13 is defined. In the present disclosure, the accommodating space 145 is defined by the body portion 143 and the flange portion 144 , and at least part of the magnetic element array 13 can be housed in the accommodating space 145 .

In some embodiments, both sides of the vibrating membrane 11 can be provided with magnetic element arrays 13, and the magnetic element arrays 13 on both sides of the vibrating membrane 11 are arranged symmetrically with the vibrating membrane 11 as a symmetrical plane. A magnetic isolation member 14 is provided on at least one side of the diaphragm 11 away from the diaphragm 11 .

In this disclosure, both sides of the diaphragm 11 are provided with arrays of magnetic elements 13, and the arrays of magnetic elements 13 on both sides of the diaphragm 11 are arranged symmetrically with the diaphragm 11 as the symmetrical plane, so that the width of the width on both sides of the diaphragm 11 The magnetic force acting on the same position of the diaphragm 11 by the magnetic member array 13 has the same force direction. The magnetic element arrays 13 are arranged on both sides of the diaphragm 11 to further enhance the strength of the magnetic field where the diaphragm 11 is located, thereby further improving the sensitivity of controlling the vibration of the diaphragm 11 and improving the sound quality of the audio output from the speaker assembly 1 .

Among them, the magnetic element arrays 13 on both sides of the diaphragm 11 are arranged symmetrically with the diaphragm 11 as a symmetrical plane, which means that the magnetic fields generated by the magnetic element arrays 13 on both sides of the diaphragm 11 are symmetrical, and the position of the diaphragm 11 is The distribution of magnetic flux lines of the magnetic field is more uniform, and the change of the magnetic field intensity in the vibration direction of the diaphragm 11 has better linearity; and it means that the passages that allow air flow in the magnetic element array 13 on both sides of the diaphragm 11 are symmetrical, that is The magnetic element arrays 13 on both sides of the diaphragm 11 have the same conformity to the airflow. Through the above method, it is beneficial to alleviate the second harmonic distortion and the third harmonic distortion of the diaphragm 11 , further alleviate the distortion of the audio output from the speaker assembly 1 , and improve the sound quality of the audio output from the speaker assembly 1 .

As shown in FIG. 3 , in some embodiments, the arrays of magnetic elements 13 on both sides of the diaphragm 11 respectively include seven smallest magnetic elements 131 , including four first smallest magnetic elements 1311 and three second smallest 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 three smallest magnetic elements 131, including one first smallest magnetic element 1311 and two second smallest magnetic elements 1312; or the arrays of magnetic elements 13 on both sides of the diaphragm 11 respectively include 5 smallest magnetic elements 131, including 2 first smallest magnetic elements 1311 and 3 second smallest magnetic elements 1312; or the diaphragm 11 The arrays of magnetic elements 13 on both sides respectively include a greater number of smallest magnetic elements 131 , which is not limited here. It can be understood that the smallest magnetic parts 131 in the magnetic part array 13 can be fixed relative to each other by means of gluing, mechanical pressing, and fixing to external structures such as brackets, and the magnetic part arrays on both sides of the diaphragm 11 The relative positional relationship between 13 and diaphragm 11 is also fixed.

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

Based on the same idea, the embodiment of the present disclosure also provides 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 an earphone, a mobile terminal (terminal device), and the mobile terminal includes but is not limited to a mobile station (MobileStation, MS), a mobile terminal device (MobileTerminal), a mobile phone (MobileTelephone), a mobile phone (handset) and a portable device (portableequipment), etc., the mobile terminal can communicate with one or more core networks via the radio access network (Radio Access Network, RAN), for example, the mobile terminal can be a mobile phone (or called a "cellular" phone), with wireless communication Functional computers, etc., the mobile terminal can also be a portable, pocket, handheld, computer built-in or vehicle-mounted mobile device or device. For example, the electronic device 100 provided in the present disclosure may be a Bluetooth headset.

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

The processing component 802 generally controls the overall operations 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 complete all or part of the steps of the above method. Additionally, processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and 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 can be implemented by any type of volatile or non-volatile storage device or their combination, 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 various components of the electronic device 100 . Power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for electronic device 100 .

The multimedia component 808 includes a screen providing an output interface between the electronic device 100 and the user. 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 not only sense a boundary of a touch or swipe action, but also detect duration and pressure associated with the touch or swipe action. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. When the electronic device 100 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.

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

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

Sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for electronic device 100 . For example, the sensor component 814 can detect the opening/closing state of the electronic device 100, the relative positioning of components, such as the display and the keypad of the electronic device 100, the sensor component 814 can also detect the electronic device 100 or one of the electronic devices 100 Changes in the position of components, presence or absence of user contact with the electronic device 100 , electronic device 100 orientation or acceleration/deceleration and temperature changes in the electronic device 100 . Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. Sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

The communication component 816 is configured to facilitate wired or wireless communication between the electronic device 100 and other devices. The electronic device 100 can access a wireless network based on communication standards, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. 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, 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 A programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation for performing the methods described above.

In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium including instructions, such as the memory 804 including instructions, which can be executed by the processor 820 of the electronic device 100 to complete the above 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, and the like.

It can be understood that "plurality" in the present disclosure refers to two or more, and other quantifiers are similar. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character "/" generally indicates that the contextual objects are an "or" relationship. The singular forms "a", "said" and "the" are also intended to include the plural unless the context clearly dictates otherwise.

It can be further understood that the terms "first", "second", etc. are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not imply a specific order or degree of importance. In fact, expressions such as "first" and "second" can be used interchangeably. For example, without departing from the scope of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information.

It is further to be understood that the terms "central", "longitudinal", "transverse", "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal" ", "Top", "Bottom", "Inner", "Outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this embodiment and simplifying the description, rather than indicating Or imply that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation.

It can be further understood that, unless otherwise specified, "connection" includes a direct connection without other components between the two, and also includes an indirect connection between the two with other elements.

It can be further understood that although operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring that these operations be performed in the specific order shown or in a serial order, or that Do all of the operations shown to get the desired result. In certain circumstances, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, and these modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure . The specification and examples are to be considered as illustrative only, with the true scope and spirit of the disclosure indicated by the following claims.

It should be understood that the present disclosure is not limited to the precise constructions which have been described above and shown in the drawings, and various modifications and changes may be made 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 loudspeaker assembly, characterized in that, comprising: Diaphragm; A vibrating coil, the vibrating coil is arranged on the width surface of the diaphragm, and the vibrating coil is suitable for driving the vibrating diaphragm; An array of magnetic elements, the array of magnetic elements is arranged relative to the width of the diaphragm, the array of magnetic elements includes a plurality of smallest magnetic elements, and any adjacent two smallest magnetic elements are arranged at intervals; and A magnetic isolating member, the magnetic isolating member is disposed on a side of the magnetic member array away from the diaphragm, and the magnetic isolating member includes: a plurality of stacked magnetic isolating layers. 2. The loudspeaker assembly of claim 1, wherein The plurality of minimum magnetic parts include: a first minimum magnetic part and a second minimum magnetic part, the first minimum magnetic parts and the second minimum magnetic parts are alternately arranged and spaced apart from each other, the first The direction of the magnetic field lines in the smallest magnetic part is parallel to the web of the diaphragm, and the direction of the magnetic field lines in the second smallest magnetic part is perpendicular to the web of the diaphragm; wherein The directions of the magnetic flux lines in any adjacent two of the first smallest magnetic parts are opposite, and the directions of the magnetic flux lines in any adjacent two of the second smallest magnetic parts are opposite. 3. The loudspeaker assembly of claim 2, wherein The magnetic element array includes: a first end facing the diaphragm and a second end 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. The loudspeaker assembly of claim 3, wherein 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. 5. The loudspeaker assembly of claim 1, wherein The magnetic isolation element is configured as a magnetic isolation cover and covers at least part of the magnetic element array. 6. The loudspeaker assembly of claim 1, wherein The plurality of magnetic isolation layers include: a stacked first magnetic isolation layer and a second magnetic isolation layer, one of the first magnetic isolation layer and the second magnetic isolation layer is configured to reflect reflection of electromagnetic waves layer, the other of the first magnetic isolation layer and the second magnetic isolation layer is configured as an electromagnetic wave absorbing layer suitable for absorbing. 7. The loudspeaker assembly of claim 6, wherein The first magnetic isolation layer is the absorption layer, the second magnetic isolation layer is a reflection layer, and the absorption layer is closer to the magnetic element array than the reflection layer. 8. The loudspeaker assembly of claim 7, wherein The absorbing layer is a mixed layer of iron ferric oxide nanoparticles and graphene, and the reflection layer is a layer of iron ferric oxide nanoparticles. 9. The loudspeaker assembly of claim 8, wherein The thickness of the absorbing layer is 0.2mm-0.3mm. 10. The loudspeaker assembly of claim 5, wherein: The magnetic isolation cover includes: a body part and a flange part disposed on the outer periphery of the body part and extending toward the diaphragm, the body part and the flange part define the magnetic member array The accommodation space is at least partially covered. 11. The loudspeaker assembly of claim 1, wherein: Both sides of the diaphragm are provided with the array of magnetic elements, and the arrays of magnetic elements on both sides of the diaphragm are arranged symmetrically with the diaphragm as a symmetrical plane, and the arrays of magnetic elements in the two arrays of magnetic elements At least one side away from the diaphragm is provided with the magnetic isolation member. 12. The loudspeaker assembly of claim 2, wherein The area of the orthographic projection of the first smallest magnetic member on the web of the diaphragm is greater than the area of the orthographic projection of the second smallest magnetic member on the web of the diaphragm, and the vibrating coil is on the web of the diaphragm The orthographic projection of the web of the membrane is located in the orthographic projection of the first minimum magnetic element on the web of the diaphragm. 13. An electronic device, characterized in that it comprises: The loudspeaker assembly according to any one of claims 1-12.

Images