CN116137691A - Vibrating diaphragm and sound equipment - Google Patents

Abstract

The embodiment of the application provides a vibrating diaphragm and sound equipment, and this vibrating diaphragm includes: the magnetic pole connecting structure comprises at least one insulating film, a plurality of conductive films and a plurality of connecting pieces, wherein a magnetic pole corresponding region is arranged on the insulating film. Each conductive film is connected with at least one insulating film, a plurality of conductive films are arranged at intervals, and the two sides of each conductive film are respectively provided with the magnetic pole corresponding areas. The plurality of conductive films are connected in series through the plurality of communication pieces to form an energizing circuit. In the technical scheme provided by the embodiment of the application, at least one insulating film is connected with a plurality of conductive films arranged at intervals, and magnetic pole corresponding areas are respectively arranged on two sides of each conductive film.

Description

Vibrating diaphragm and sound equipment

Technical Field

The application relates to the technical field of sound equipment, in particular to a vibrating diaphragm and sound equipment.

Background

The traditional sound box is generally designed to drive the cone to vibrate through a conductive coil in a magnetic field to generate sound, and the current is converted into a sound signal. However, the cone consumes a lot of energy to counteract inertia during vibration, so that the cone's ability to vibrate at higher frequencies is limited, and so this attribute results in a design that is more suitable for bass signals. With the development of technology, a ribbon speaker is increasingly popular with users, and the principle is that an audio current is applied to a conductive film placed in a uniform magnetic field, when the conductive film after being electrified passes through the magnetic field, the conductive film is subjected to the action of the magnetic field, and the direction and the magnitude of the magnetic field applied to the conductive film are changed by changing the direction and the magnitude of the audio current, so that the conductive film is stressed to vibrate and generate sound.

Today, conventional ribbon speakers are capable of perfectly reproducing high frequency and ultra high frequency signals, and are distinctive in tone and sound quality, but they do not emit bass sound well, so that they do not perfectly cover the high, medium and low audio spectrum when used by a user, thereby failing to meet the user's use requirements.

Disclosure of Invention

In order to solve or improve the above problems, embodiments of the present application provide a diaphragm and an acoustic apparatus.

In one embodiment of the present application, there is provided a diaphragm including:

at least one insulating film, wherein the insulating film is provided with a magnetic pole corresponding region;

the plurality of conductive films are connected with at least one insulating film, are arranged at intervals, and are respectively provided with the magnetic pole corresponding areas on two sides;

and the conductive films are connected in series through the plurality of communication pieces so as to form an energizing circuit.

Preferably, the insulating film comprises one insulating film, and the insulating film comprises a first surface and a second surface which are oppositely arranged;

a plurality of conductive films are connected with the first surface; or alternatively

The conductive films comprise a plurality of first sub-films and a plurality of second sub-films, the first sub-films are arranged on the first surface, the second sub-films are arranged on the second surface, and the first sub-films and the second sub-films are arranged at intervals.

Preferably, the insulating film includes two stacked layers, and a plurality of conductive films are provided between the two insulating films.

Preferably, an insulating structure is provided between two adjacent conductive films.

Preferably, the insulating film includes a plurality of insulating films, and the plurality of insulating films and the plurality of conductive films are sequentially connected at intervals.

Preferably, the insulating film comprises a first surface and a second surface which are arranged oppositely, and a side surface arranged between the first surface and the second surface;

a plurality of conductive films are connected with the first surface; alternatively, a plurality of the conductive films are connected to the side surface; or, insulating films are respectively arranged on two sides of the conductive film, and the conductive film is connected with the first surface of one insulating film and the second surface of the other insulating film.

Preferably, the communication member includes a communication film provided on the insulating film; or alternatively

The communication member includes a conductive wire.

Preferably, a feedback wire is provided on the conductive film, and the feedback wire extends along the direction of current flow in the energizing circuit.

Preferably, the conductive film at least comprises one of gold, silver, copper, iron, aluminum, graphite, graphene, carbon fiber, polymer material and composite material.

Preferably, the insulating film at least comprises one of spandex material, silica gel material, rubber material, polyester film, polyester fiber or other polymer materials.

Preferably, each of the conductive films includes a plurality of segmented films, each of the plurality of segmented films extending along a flow direction of current in the energizing circuit;

the plurality of segmented films are distributed at intervals in the direction from one magnetic pole corresponding region to the other magnetic pole corresponding region.

Preferably, the insulating film comprises one insulating film, and the insulating film comprises a first surface and a second surface which are oppositely arranged;

the plurality of segmented films are connected with the first surface, and an insulating structure is arranged between two adjacent segmented films; or alternatively

The segmented films comprise a plurality of first sub-segment films and a plurality of second sub-segment films, the first sub-segment films are arranged on the first surface, the second sub-segment films are arranged on the second surface, and the first sub-segment films and the second sub-segment films are arranged at intervals.

Preferably, the insulating film includes two laminated films, and a plurality of segmented films are provided between the two insulating films.

Preferably, an insulating structure is provided between two adjacent segmented films.

Preferably, the size of the plurality of the segmented films is equal from one of the magnetic pole corresponding regions to the other of the magnetic pole corresponding regions, or the size of the segmented films is larger as approaching the magnetic pole corresponding regions.

In another embodiment of the present application, there is also provided an acoustic apparatus including the diaphragm;

the plurality of magnet groups are distributed at intervals, each magnet group comprises a pair of magnets with homopolarity opposite to each other, an opposite gap is formed between each pair of magnets, and an energizing gap is formed between two adjacent magnet groups with opposite magnetic poles;

the vibrating diaphragm is arranged in the opposite gap in a penetrating way, each magnet group is arranged corresponding to one magnetic pole corresponding area, and the conducting film is arranged in the electrifying gap.

Preferably, the sound equipment further comprises a plurality of magnetic conductive pieces, and two adjacent magnets with opposite magnetic poles are respectively connected with two ends of the magnetic conductive pieces.

In addition, preferably, the audio apparatus further includes a signal input circuit, a signal amplifier, and a feedback circuit;

the signal input circuit is provided with an input end and an output end, the input end is used for receiving an external input signal, and the output end is connected with the signal amplifier;

the signal amplifier is provided with an input port and an output port, the input port is connected with the output end, and the output port is connected with the energizing circuit on the vibrating diaphragm;

the feedback wire on the conductive film is connected with one end of the feedback circuit, and the other end of the feedback circuit is connected with the input port.

In the technical scheme provided by the embodiment of the application, at least one insulating film is connected with a plurality of conductive films arranged at intervals through the arrangement, and the two sides of each conductive film are respectively provided with a magnetic pole corresponding area. In the specific embodiment, the magnets can be arranged in the corresponding areas of the magnetic poles, and the area of each conductive film is reasonably arranged, so that under the condition of certain energy, the larger the area of the conductive film is, the smaller the amplitude of the conductive film is, and each conductive film can also emit low-frequency sound meeting the requirements of users, so that the conductive film can cover high-middle-low-frequency spectrums.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings that are needed in the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a diaphragm according to an embodiment of the present disclosure;

fig. 2 is a schematic top view of a diaphragm according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a diaphragm according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of another structure of a diaphragm according to an embodiment of the present disclosure;

fig. 5 is a schematic perspective view of a diaphragm according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a diaphragm according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of another structure of a diaphragm according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a diaphragm according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of a plurality of sub-section films of a diaphragm according to an embodiment of the present disclosure;

FIG. 10 is a schematic view of a structure of a plurality of sub-segment membranes according to an embodiment of the present disclosure;

FIG. 11 is a schematic view illustrating a usage state of a diaphragm according to an embodiment of the present disclosure;

fig. 12 is a schematic structural diagram of an audio device according to an embodiment of the present disclosure;

FIG. 13 is a diagram illustrating a shape of a diaphragm and a distribution diagram of a magnetic pole corresponding region according to an embodiment of the present disclosure;

FIG. 14 is a schematic diagram of a shape of a diaphragm and a distribution diagram of a magnetic pole corresponding region according to an embodiment of the present disclosure;

fig. 15 is a schematic diagram of the shape of another diaphragm and a distribution diagram of a magnetic pole corresponding region according to an embodiment of the present application.

Detailed Description

In order to enable those skilled in the art to better understand the present application, the following description will make clear and complete descriptions of the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It should be noted that in the description of the present application, the terms "first," "second," and the like are merely used for convenience in describing the various components or names and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Fig. 1 is a schematic perspective view of a diaphragm according to an embodiment of the present application, and fig. 2 is a schematic top view of a diaphragm according to an embodiment of the present application. Referring to fig. 1 and 2, in a diaphragm provided in an embodiment of the present application, the diaphragm includes at least one insulating film 1, a plurality of conductive films 2, and a plurality of communication members 3. Wherein, the insulating film 1 is provided with a magnetic pole corresponding region 4, the magnetic pole corresponding region 4 is used for placing a magnet, each conductive film 2 is at least connected with one insulating film 1, a plurality of conductive films 2 are arranged at intervals, and two sides of each conductive film 2 are respectively provided with a magnetic pole corresponding region 4. The plurality of conductive films 2 are connected in series through the plurality of communication pieces 3 to form an energizing circuit. The insulating film 1 has an insulating function and a certain elasticity, and when the vibrating diaphragm vibrates, the insulating film 1 can stretch and contract to a certain extent. In the technical scheme provided by the embodiment of the application, at least one insulating film 1 is connected with a plurality of conductive films 2 arranged at intervals through arrangement, and meanwhile, two sides of each conductive film 2 are respectively provided with a magnetic pole corresponding region 4. In a specific embodiment, a magnet can be arranged in the magnetic pole corresponding region 4, and by reasonably arranging the area of each conductive film 2, the larger the area of the conductive film 2 is, the smaller the amplitude of the conductive film is, so that each conductive film 2 can emit low-frequency sound meeting the requirements of users, and the conductive film 2 can cover high-middle-low frequency spectrums.

The technical scheme provided by the embodiment of the application is described in further detail below.

Referring to fig. 3, in one embodiment of the present application, the diaphragm includes an insulating film 1, and the insulating film 1 includes a first surface 11 and a second surface 12 disposed opposite to each other, and a plurality of conductive films 2 are connected to the first surface 11. The plurality of conductive films 2 are arranged in parallel and at intervals, and the distances between adjacent conductive films 2 may be the same or different. The two sides of each conductive film 2 are provided with magnetic pole corresponding regions 4, (the region where the dotted line frame is located is the magnetic pole corresponding region 4 in the figure, only part of the magnetic pole corresponding regions 4 are shown in the figure, the magnetic pole corresponding regions 4 at other positions are not shown in the figure and do not represent the absence of the magnetic pole corresponding regions, meanwhile, the area size of the dotted line frame does not represent the area size of the magnetic pole corresponding regions 4, which is only used for representing the position relation of the magnetic pole corresponding regions 4 relative to the vibrating diaphragm), and the magnetic pole corresponding regions 4 are distributed on the first surface 11 and the second surface 12 of the insulating film 1 at the same time. In the connection of the plurality of conductive films 2 to the insulating film 1, there are various cases in which one of the plurality of conductive films 2 is connected to the insulating film 1 by means of adhesion, or in which one of the plurality of conductive films 2 is etched on the conductive film 2 by means of etching by adhering a layer of material of the conductive film 2 to the insulating film 1.

In another embodiment provided in the present application, as shown in fig. 4, the diaphragm includes an insulating film 1, and the insulating film 1 includes a first surface 11 and a second surface 12 disposed opposite to each other, and the plurality of conductive films 2 includes a plurality of first sub-films 201 and a plurality of second sub-films 202, where the plurality of first sub-films 201 are disposed on the first surface 11, and the plurality of second sub-films 202 are disposed on the second surface 12, and the first sub-films 201 are disposed at intervals from the second sub-films 202. Wherein the first sub-film 201 and the second sub-film 202 are disposed at intervals not only in the lateral direction but also in the vertical direction (in fig. 4, the length direction of the insulating film 1 is defined as the lateral direction, and the thickness direction of the insulating film 1 is defined as the width direction). The spacing distance between the adjacent first sub-film 201 and second sub-film 202 in the lateral direction may be the same or different, and the width of the corresponding magnetic pole corresponding region 4 in the lateral direction may be the same or different, and in the implementation process, the spacing distance is determined by the size of the volume of the magnet placed in the adjacent magnetic pole corresponding region 4. In the technical scheme provided in the embodiment of the application, since the two sides of each conductive film 2 are provided with the magnetic pole corresponding regions 4, when the area of each conductive film 2 is large, the magnet located in the magnetic pole corresponding region 4 can still provide a strong magnetic field for the conductive film 2.

Referring to fig. 5, in one embodiment provided herein, a diaphragm includes two insulating films 1 stacked and disposed, and a plurality of conductive films 2 are disposed between the two insulating films 1. The plurality of conductive films 2 are arranged in parallel, the two sides of each conductive film 2 are provided with magnetic pole corresponding areas 4, the two sides of the vibrating diaphragm are distributed with the magnetic pole corresponding areas 4, and the adjacent conductive films 2 are arranged at intervals. The conductive film 2 is arranged between the two layers of insulating films 1, so that air can be effectively isolated from being contacted with the conductive film 2, the service life of the conductive film 2 is prolonged, and meanwhile, the structural strength of the vibrating diaphragm can be increased.

Further, in order to provide better insulation between the adjacent conductive films 2, an insulating structure may be provided between the adjacent two conductive films 2, and the insulating structure is also located between the two insulating films 1. In another embodiment of the present application, two insulating films 1 may be directly bonded between two adjacent conductive films 2, which may also serve as insulation.

In one embodiment provided in the present application, referring to fig. 6, the diaphragm includes a plurality of insulating films 1 and a plurality of conductive films 2, and the plurality of insulating films 1 and the plurality of conductive films 2 are sequentially connected at intervals. One insulating film 1 is connected to both sides of one conductive film 2, respectively, while two conductive films 2 (except for the insulating film 1 or the conductive film 2 at both ends of the diaphragm) are connected to both sides of one insulating film 1, respectively

Further, the insulating film 1 includes a first surface 11 and a second surface 12 disposed opposite to each other, and a side surface 13 disposed between the first surface 11 and the second surface 12. Referring to fig. 6, a plurality of conductive films 2 are connected to the first surface 11, two insulating films 1 are connected to both ends of the conductive films 2, and two ends of the first surface 11 of the insulating film 1 are connected to the two conductive films 2, respectively. The plurality of conductive films 2 are substantially on the same plane, the plurality of insulating films 1 are also substantially on the same plane, and the plane of the conductive film 2 and the plane of the insulating film 1 are not on the same plane and are parallel to each other.

In another embodiment of the present application, referring to fig. 7, the plurality of conductive films 2 are all connected to the side 13, the diaphragm is a layer structure, and the plurality of conductive films 2 and the plurality of insulating films 1 are substantially on the same plane. Two sides of one conductive film 2 are respectively connected with two insulating films 1, and two sides of the same insulating film 1 are respectively connected with two conductive films 2. Alternatively, referring to fig. 8, the conductive films 2 are provided with the insulating films 1 on both sides thereof, respectively, and the conductive film 2 is connected to the first face 11 of one of the insulating films 1 and to the second face 12 of the other insulating film 1. The conductive film 2 is located between the two insulating films 1, each end of one conductive film 2 is connected to the two insulating films 1, respectively, and the upper surface of one end of the conductive film 2 is connected to the second surface 12 of one insulating film 1, and the lower surface of one end of the conductive film 2 is connected to the first surface 11 of the other insulating film 1. By connecting the plurality of conductive films 2 to the plurality of insulating films 1, the weight of the diaphragm can be effectively reduced.

In one embodiment provided herein, referring to fig. 1 and 2, the communication member 3 includes a communication film provided on the insulating film 1, or the communication member 3 includes a conductive wire. When the diaphragm is in the magnetic field, the diaphragm will vibrate when current passes through the conductive films 2 on the diaphragm, so that each conductive film 2 can pass through the current in the preset flowing direction, that is, the plurality of conductive films 2 can be connected through the connecting piece 3. Since the adjacent conductive films 2 are in magnetic fields having different directions, the directions of currents in the adjacent conductive films 2 are different so that the vibration directions of the plurality of conductive films 2 at the same time are the same. By connecting the communication members 3 in series, the current flowing in the adjacent conductive films 2 can be made different in direction.

Further, in order to simplify the structure of the diaphragm, referring to fig. 2, the communicating member 3 is also provided on the insulating film 1 while the communicating member 3 is located at both ends of the magnetic pole corresponding region 4, and the current flows in the same or opposite direction as the magnetic field direction in the communicating member 3 (the current flow direction is not perpendicular to the magnetic field), so that the communicating member 3 does not vibrate due to the force generated by the magnetic field when the current flows in the communicating member 3.

Further, in order to reduce the weight of the diaphragm, referring to fig. 1, the communicating member 3 may be a conductive wire, one end of the conductive wire is connected to one end of one conductive film 2, the other end is simultaneously connected to one end of the other conductive film 2, two ends of each conductive film 2 are respectively connected to two adjacent different conductive films 2 on two sides thereof through two sections of wires, and the wires on the two ends are respectively located at two ends of the conductive film 2.

For accurately detecting the vibration frequency and amplitude of the conductive film 2 or the vibrating diaphragm, detecting the vibration frequency and amplitude of the vibrating diaphragm is also equivalent to detecting the frequency and intensity of the emitted sound, in one embodiment of the present application, a feedback wire (not shown in the figure) is disposed on the conductive film 2, and the feedback wire is electrically isolated from the conductive film 2 (the circuit isolation means that the feedback wire is mutually insulated from the conductive film), so that the electrical signal on the conductive film 2 is not conducted to the feedback wire, and the feedback wire extends along the direction of the current flowing in the energizing circuit. When an electrical signal is applied to the conductive film 2, the conductive film 2 vibrates under the action of the magnetic field, and the feedback wire on the conductive film 2 vibrates along with the conductive film 2. Because the feedback wire is also positioned in the magnetic field, the feedback wire can cut the magnetic induction wire along the vibration direction in the vibration process, and the induction current is generated in the feedback wire, and the vibration frequency of the conductive film 2 or the vibrating diaphragm can be accurately determined by detecting the induction current, and the frequency and the intensity of sound emitted by the vibrating diaphragm can be indirectly detected.

In one embodiment provided herein, the conductive film 2 includes at least one of gold, silver, copper, iron, aluminum, graphite, graphene, carbon fiber, polymer material, and composite material. Different materials have different performances and tone colors, and different conductive films 2 can be manufactured by selecting different materials, so that the requirements of different users can be met.

Further, in order to provide the insulating film 1 with a certain elasticity and insulating property, a certain support property is provided to the conductive film 2. The insulating film 1 comprises at least one of spandex material, silica gel material, rubber material, polyester film, polyester fiber or other polymer material. Other polymer materials having a certain elasticity and insulation property can be applied to the insulating film 1 provided in one embodiment of the present application.

In order to make the amplitude of the diaphragm of each conductive film 2 uniform, in the embodiment of the present application, each conductive film 2 includes a plurality of segmented films, the sizes of which are equal from one magnetic pole corresponding region 4 to the other magnetic pole corresponding region 4, or the sizes of which are larger as they are closer to the magnetic pole corresponding region 4. The plurality of segmented films extend along the flowing direction of the current in the energizing circuit, and are distributed at intervals in the direction from one magnetic pole corresponding region 4 to the other magnetic pole corresponding region 4. The two sides of each conductive film 2 are provided with magnetic pole corresponding areas 4, the magnetic poles are arranged in the magnetic pole corresponding areas 4, the magnetic field intensity of the magnetic pole corresponding areas 4 is stronger when the magnetic pole is closer to the magnetic pole corresponding areas 4 according to the rule of the magnetic field intensity of the magnet, and the magnetic field intensity of the middle position of the two magnetic pole corresponding areas 4 is weakest.

Since the direction and magnitude of the current in the conductive film 2 are the same, the larger the magnetic field force applied to the conductive film 2 located at a stronger magnetic field strength, i.e., the larger the vibration amplitude of the conductive film 2. By dividing the conductive film 2 into a plurality of segmented films along the length direction of the conductive film 2, the widths of the segmented films located at different magnetic field strengths are different, and the weights of the segmented films of different widths are different. The width design of the segmented film should take into account dead weight (dead weight means, for example, the insulating film beside the conductive film, itself not subjected to the force of the magnetic field, the conductive film is required to pull and vibrate, its weight is dead weight), the fixed end is pulled and damped. The greater the width of the segmented film at the stronger magnetic field strength, i.e., the heavier the weight, the smaller the width of the segmented film at the weaker magnetic field strength, i.e., the lighter the weight. The larger the weight is, the larger the inertia is, and when the conductive film 2 vibrates, the inertia factors can effectively counteract the influence caused by the uneven magnetic field intensity, so that the vibration amplitude of each segmented film in the uneven magnetic field is ensured to be approximately the same. Meanwhile, the design is equivalent to the increase of the length of the conductive film 2 in the magnetic field, and the vibration efficiency of the vibrating film is effectively improved.

In one embodiment provided in the present application, referring to fig. 9, the conductive film 2 is divided into three segmented films, which are a first segmented film 21, a second segmented film 22, and a third segmented film 23, respectively, separated by an insulating material. The width of the first and third segmented films 21 and 23 is greater than the width of the second segmented film 22, i.e., the weight of the first and third segmented films 21 and 23 is greater than the weight of the second segmented film 22. When the magnets are arranged in the magnetic pole corresponding areas 4, the magnetic field intensity of the positions where the first segmented film 21 and the second segmented film 22 are arranged is larger, namely, the larger the vibration amplitude is, the inertia of the segmented films is increased by increasing the width of the segmented films, and the segmented films can offset the influence of part of magnetic field force when vibrating, so that the vibration amplitude of different segmented films is ensured to be approximately the same.

Further, referring to fig. 10, the diaphragm includes an insulating film 1, the insulating film 1 includes a first surface 11 and a second surface 12 disposed opposite to each other, a plurality of segmented films are connected to the first surface 11, and an insulating structure is disposed between two adjacent segmented films. Each conductive film 2 is divided into three-segment films, a first segment film 21 and a second segment film 22 of which are provided on the first face 11 of the insulating film 1, and a second segment film 22 of which is provided on the second face 12 of the insulating film 1. The first segmented film 21 is spaced apart from the third segmented film 23. Different sectional films can be effectively isolated by arranging different sectional films on different surfaces of the insulating film 1, so that the sectional films cannot influence each other.

Further, the plurality of segmented films include a plurality of first segmented films and a plurality of second segmented films, the plurality of first segmented films are disposed on the first surface 11, the plurality of second segmented films are disposed on the second surface 12, and the first segmented films and the second segmented films are disposed at intervals. In the embodiment of the present application, the conductive film 2 may be divided into a plurality of sub-segment films of different widths or the same width, and adjacent sub-segment films are respectively disposed on different sides of the insulating film 1 so as to be spaced apart from each other.

Further, the insulating film 1 includes two laminated films, and a plurality of segmented films are provided between the two insulating films 1. In one embodiment of the present application, the conductive film 2 is divided into a plurality of segmented films, with different segmented films lying substantially on the same plane, with the different segmented films being disposed at intervals from one another. The upper surface and the lower surface of the segmented film are respectively provided with the insulating film 1, and the upper insulating film 1 and the lower insulating film 1 can effectively avoid the contact between the conductive film 2 and air, so that the service life of the conductive film 2 is prolonged.

Further, in order to insulate the different segmented films from each other, an insulating structure is provided between two adjacent segmented films.

The embodiment of the application also provides an acoustic device, which comprises the vibrating diaphragm, and also comprises a plurality of magnet groups 5, wherein the magnet groups 5 are distributed at intervals, each magnet group 5 comprises a pair of magnets with the same poles opposite to each other, an opposite gap is formed between each pair of magnets, and an energizing gap is formed between two magnet groups 5 which are adjacent and opposite in magnetic pole. The vibrating diaphragm is arranged in the opposite gap in a penetrating way, each magnet group 5 is arranged corresponding to one magnetic pole corresponding region 4, and the conductive film 2 is arranged in the electrifying gap. Referring to fig. 11, the magnetic poles of the adjacent magnet groups 5 are different from each other, and the conductive film 2 on the diaphragm is located between the adjacent magnet groups 5, so that the magnetic field strength between the magnet groups 5 can be effectively enhanced by making the two magnets opposed to each other and the magnetic poles of the adjacent magnet groups 5 are different from each other.

Further, referring to fig. 12, the acoustic apparatus further includes a plurality of magnetic conductive members 10, and two magnet groups 5 adjacent to each other and opposite in magnetic pole are respectively connected to both ends of the magnetic conductive members 10. The magnetic conductive member 10 can effectively reduce the interference of the magnetic field generated by one pole of the magnet groups 5 opposite to the opposite pole with the magnetic field in the middle of the two magnet groups 5, thereby reducing the field strength loss.

Further, in an embodiment of the present application, the audio device further includes a signal input circuit, a signal amplifier, and a feedback circuit, where the signal input circuit has an input end for receiving an external input signal and an output end connected to the signal amplifier. The signal amplifier is provided with an input port and an output port, the input port is connected with the output end, and the output port is connected with an energizing circuit on the vibrating diaphragm. The feedback wire on the conductive film is connected with one end of the feedback circuit, and the other end of the feedback circuit is connected with the input port.

Firstly, after the input end of the signal input circuit receives an audio source signal, the audio source signal is transmitted to the input port of the signal amplifier through the output end of the input circuit. After the sound source signal is processed by the signal amplifier, the output port on the signal amplifier outputs signal current with certain frequency and intensity, then the signal current acts on the vibrating diaphragm, and at the moment, the conductive film 2 in the energizing circuit can vibrate with certain frequency and intensity, so that sound with certain frequency and intensity is emitted. During vibration of the diaphragm, the feedback wire provided on the conductive film vibrates together with the conductive film 2. Because the feedback wire can generate corresponding induced current in the process of vibration, the induced current can accurately reflect the frequency and intensity of sound emitted by the vibrating diaphragm. After receiving the signal of the induced current, the feedback circuit can compare the parameters of the sound source signal and the induced current, thereby completing the detection of the sound accuracy of the vibrating diaphragm. And then the feedback circuit feeds back and adjusts the frequency and intensity of the signal current through the signal amplifier, so that the sound emitted by the vibrating diaphragm is more accurate.

In another embodiment of the present application, the signal amplifier includes a feedback processing circuit, and the signal amplifier has the capability of processing the audio signal and the induced current in addition to the signal amplifying function. The output end of the input circuit is connected with the input port of the signal amplifier, meanwhile, the output port of the signal amplifier is connected with the energizing circuit on the vibrating diaphragm, and the feedback wire is connected with the input port of the signal amplifier. When the vibrating diaphragm is vibrating, the induced current generated in the feedback lead is directly conducted to the signal amplifier, after the feedback processing circuit in the signal amplifier processes the induced current, the signal amplifier outputs new signal current, and the sound generated by the vibrating diaphragm under the action of the new signal current is more accurate.

In one technical scheme provided by the application, the feedback circuit or the signal amplifier can directly obtain the current (voltage) detailed parameter from the feedback wire in real time, so that the accuracy of the played sound is indirectly judged. The conventional audio feedback system is reversely observed, and usually, the parameters of the feedback current (voltage) obtained before the playing end are used for correcting the signal current of the audio, so that the problem is that after the signal enters the playing end, the playing end also has the condition of signal interference or loss, so that the feedback signal obtained before the playing end of the audio cannot accurately correct the signal current, and the sound emitted by the playing end is inaccurate. In the technical scheme provided by the application, the actual vibration state can be obtained when the vibrating diaphragm vibrates, and the sounding signal is adjusted through the parameters of the fed-back current (voltage), so that the sound source output is more stable and accurate.

Referring to fig. 13, an embodiment of the present application provides a diaphragm, where the diaphragm includes a layer of insulating film 1, a conductive film 2 and a communicating member 3 are disposed on the insulating film 1, and magnetic pole corresponding regions 4 on the diaphragm are arranged in a hexagonal shape, and magnetic poles disposed in adjacent magnetic pole corresponding regions 4 are different. In fig. 13, N or S in the magnetic pole corresponding region 4 represents the N-pole or S-pole, respectively, of the opposing magnetic poles of the pair of opposing magnets. The conductive films 2 are arranged between the adjacent magnetic pole corresponding regions 4, and a plurality of the conductive films 2 are connected in series into a complete circuit through the connecting piece 3. By applying a current signal to both ends of the line, the direction in which the conductive film 2 is stressed in the magnetic field is the same, so that the amplitude and direction of vibration of the entire line formed by the series connection are the same at the same time.

Referring to fig. 14 and 15, the embodiment of the present application provides a diaphragm, which includes a layer of insulating film 1, a conductive film 2 and a communicating member 3 are disposed on the insulating film 1, and magnetic pole corresponding regions 4 on the diaphragm are arranged in a quadrilateral manner, and magnetic poles disposed in adjacent magnetic pole corresponding regions 4 are different. In fig. 14 and 15, N or S in the magnetic pole corresponding region 4 represents the N-pole or S-pole, respectively, of the opposing magnets of the pair of opposing magnets. The conductive films 2 are disposed between the adjacent magnetic pole corresponding regions 4, and a plurality of conductive films 2 are connected in series through the communicating members 3 to form a complete line, and the direction of the connection of the communicating members 3 in fig. 14 is different from that in fig. 15. By applying a current signal to both ends of the line, the direction in which the conductive film 2 is stressed in the magnetic field is the same, so that the amplitude and direction of vibration of the entire line formed by the series connection are the same at the same time.

In summary, in the technical scheme provided by the embodiment of the application, at least one insulating film is connected with a plurality of conductive films arranged at intervals through arrangement, and two sides of each conductive film are respectively provided with a magnetic pole corresponding region. In the specific embodiment, the magnets can be arranged in the corresponding areas of the magnetic poles, and the area of each conductive film is reasonably arranged, so that under the condition of certain energy, the larger the area of the conductive film is, the smaller the amplitude of the conductive film is, and each conductive film can also emit low-frequency sound meeting the requirements of users, so that the conductive film can cover high-middle-low-frequency spectrums. Meanwhile, each conductive film is divided into a plurality of segmented films, and the widths of the segmented films are different in different magnetic field strengths, so that the vibration amplitude of each segmented film is approximately the same, and the sound production of the vibrating film is more accurate.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (18)

1. A diaphragm, comprising:

at least one insulating film, wherein the insulating film is provided with a magnetic pole corresponding region;

the plurality of conductive films are connected with at least one insulating film, are arranged at intervals, and are respectively provided with the magnetic pole corresponding areas on two sides;

and the conductive films are connected in series through the plurality of communication pieces so as to form an energizing circuit.

2. The diaphragm of claim 1, wherein the insulating film comprises one, the insulating film comprising a first face and a second face disposed opposite each other;

a plurality of conductive films are connected with the first surface; or alternatively

The conductive films comprise a plurality of first sub-films and a plurality of second sub-films, the first sub-films are arranged on the first surface, the second sub-films are arranged on the second surface, and the first sub-films and the second sub-films are arranged at intervals.

3. The diaphragm of claim 1, wherein the insulating film includes two of the insulating films stacked, and a plurality of conductive films are provided between the two insulating films.

4. A diaphragm according to claim 3, wherein an insulating structure is provided between two adjacent conductive films.

5. The diaphragm of claim 1, wherein the insulating film comprises a plurality of insulating films, and wherein the plurality of insulating films are sequentially connected to the plurality of conductive films at intervals.

6. The diaphragm of claim 5, wherein the insulating film comprises a first surface and a second surface disposed opposite to each other, and a side surface disposed between the first surface and the second surface;

a plurality of conductive films are connected with the first surface; alternatively, a plurality of the conductive films are connected to the side surface; or, insulating films are respectively arranged on two sides of the conductive film, and the conductive film is connected with the first surface of one insulating film and the second surface of the other insulating film.

7. The diaphragm of any one of claims 1 to 6, wherein the communication member includes a communication film provided on the insulating film; or alternatively

The communication member includes a conductive wire.

8. The diaphragm of any one of claims 1 to 6, wherein a feedback wire is provided on the conductive film, the feedback wire extending in a direction in which a current in the energized circuit flows.

9. The diaphragm of any of claims 1-6, wherein the conductive film comprises at least one of gold, silver, copper, iron, aluminum, graphite, graphene, carbon fiber, a polymer material, and a composite material.

10. The diaphragm of any of claims 1-6, wherein the insulating film comprises at least one of a spandex material, a silicone material, a rubber material, a polyester film, a polyester fiber, or other polymer material.

11. The diaphragm of any one of claims 1 to 6, wherein each of the conductive films includes a plurality of segmented films, each of the plurality of segmented films extending along a flow direction of current in the energized circuit;

the plurality of segmented films are distributed at intervals in the direction from one magnetic pole corresponding region to the other magnetic pole corresponding region.

12. The diaphragm of claim 11, wherein the insulating film comprises one, the insulating film comprising a first face and a second face disposed opposite each other;

the plurality of segmented films are connected with the first surface, and an insulating structure is arranged between two adjacent segmented films; or alternatively

The segmented films comprise a plurality of first sub-segment films and a plurality of second sub-segment films, the first sub-segment films are arranged on the first surface, the second sub-segment films are arranged on the second surface, and the first sub-segment films and the second sub-segment films are arranged at intervals.

13. The diaphragm of claim 11, wherein the insulating film comprises two laminated films, and a plurality of segmented films are disposed between the two insulating films.

14. The diaphragm of claim 13, wherein an insulating structure is disposed between two adjacent segmented membranes.

15. The diaphragm of claim 11 wherein the dimensions of the plurality of segmented films are equal from one pole-corresponding region to another or the dimensions of the segmented films are greater closer to the pole-corresponding region.

16. An acoustic apparatus comprising the diaphragm of any one of claims 1 to 15;

the plurality of magnet groups are distributed at intervals, each magnet group comprises a pair of magnets with homopolarity opposite to each other, an opposite gap is formed between each pair of magnets, and an energizing gap is formed between two adjacent magnet groups with opposite magnetic poles;

the vibrating diaphragm is arranged in the opposite gap in a penetrating way, each magnet group is arranged corresponding to one magnetic pole corresponding area, and the conducting film is arranged in the electrifying gap.

17. The audio device of claim 16, further comprising a plurality of magnetic conductive members, wherein two of said magnets adjacent and opposite to each other are respectively connected to both ends of said magnetic conductive members.

18. The audio device of claim 16, further comprising a signal input circuit, a signal amplifier, and a feedback circuit;

the signal input circuit is provided with an input end and an output end, the input end is used for receiving an external input signal, and the output end is connected with the signal amplifier;

the signal amplifier is provided with an input port and an output port, the input port is connected with the output end, and the output port is connected with the energizing circuit on the vibrating diaphragm;

the feedback wire on the conductive film is connected with one end of the feedback circuit, and the other end of the feedback circuit is connected with the input port.

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