WO2021042877A1 - 移动终端 - Google Patents

移动终端 Download PDF

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Publication number
WO2021042877A1
WO2021042877A1 PCT/CN2020/102243 CN2020102243W WO2021042877A1 WO 2021042877 A1 WO2021042877 A1 WO 2021042877A1 CN 2020102243 W CN2020102243 W CN 2020102243W WO 2021042877 A1 WO2021042877 A1 WO 2021042877A1
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WO
WIPO (PCT)
Prior art keywords
magnet
coil
main magnet
mobile terminal
main
Prior art date
Application number
PCT/CN2020/102243
Other languages
English (en)
French (fr)
Inventor
俞卓君
叶千峰
丁俊
林洲
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20860321.7A priority Critical patent/EP4024897A4/en
Priority to US17/640,490 priority patent/US20220345827A1/en
Publication of WO2021042877A1 publication Critical patent/WO2021042877A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops

Definitions

  • the present application relates to the field of terminal technology, in particular, to a mobile terminal.
  • the principle of the screen sound technology is to drive the screen through the vibration sound module inside the mobile terminal.
  • the screen is used as a vibrating body, and the sound waves generated by the screen vibration are transmitted to the human ear, so that the mobile terminal can cancel the earpiece design.
  • the present application provides a mobile terminal, which enables the mobile terminal to generate a louder sound through screen vibration when the mobile terminal uses the screen to produce sound, thereby improving the sound effect of the screen.
  • a mobile terminal including a middle frame, and a housing and a display module disposed on both sides of the middle frame; the display module is connected to the middle frame, and the display module An accommodating space is formed between the middle frame; the mobile terminal further includes a first magnet and a second magnet, and at least a part of the first magnet and the second magnet are disposed in the accommodating space; The first magnet is arranged on the back of the display module, the second magnet is arranged on the middle frame, and the first magnet and the second magnet are arranged opposite to each other; wherein, the first magnet Is a coil, and the second magnet is the main magnet; or, the first magnet is the main magnet, and the second magnet is a coil; the main magnet is a Halbach array, and the main magnet is opposite to the coil One side generates a unilateral magnetic field.
  • the coil described in the embodiments of the present application is a coil that can generate a magnetic field.
  • the coil can generate a magnetic field after passing a current through the coil, and the coil can be used as a magnet.
  • the first magnet can move along the vertical direction. Vibrate in the direction of the light-emitting surface of the display module. Since the first magnet is arranged on the back of the display module, the first magnet will drive the display module to move up and down with a small amplitude and high frequency relative to the middle frame. Driven by the first magnet, the display module acts as a diaphragm, which pushes the air to generate sound during the vibration process, so as to realize the screen sound, so as to realize the function of an earpiece or a speaker.
  • the coil can receive the first driving signal and generate a magnetic field with a variable size and direction according to the first driving signal.
  • the magnetic field generated by the coil interacts with the magnetic field generated by the main magnet to realize the screen sound.
  • the coil drives the display module as a diaphragm in the process of realizing the screen to produce sound, which pushes the air to produce sound during the vibration process.
  • the main magnet drives the display module to act as a diaphragm in the process of realizing the screen sound, and pushes the air to produce sound during the vibration process.
  • the Halbach array can generate a unilateral magnetic field.
  • the magnetic field strength of the main magnet on the side close to the coil can be significantly increased, while the magnetic field strength on the other side can be significantly reduced.
  • the magnetic force received by the main magnet and the coil is significantly increased, which can increase the vibration intensity of the coil or the vibration intensity of the main magnet, thereby improving the display
  • the vibration intensity of the module increases the sound of the screen and enhances the sound effect of the screen.
  • the main magnet adopts the Halbach array
  • the magnetic field strength of one side of the array can be significantly improved.
  • the thickness of the main magnet 2210 can be made thinner.
  • the number of turns of the coil can be less, which can save the thickness space of the main magnet and the coil, which is beneficial to the thickness reduction of the mobile terminal.
  • a part of the main magnet is embedded in a closed area formed by the wire of the coil.
  • the coil when the coil receives the first drive signal, when the first magnet is a coil, the magnetic field generated by the coil interacts with the magnetic field generated by the main magnet, so that the coil drives the display module Cut the small amplitude and high frequency vibration on and off the magnetic induction line.
  • the main magnet receives the reaction force of the coil, and the coil drives the display module to perform high-frequency vibration.
  • the mobile terminal further includes at least one auxiliary magnet; the auxiliary magnet and the main magnet are located on the same side, and between the auxiliary magnet and the main magnet There is a gap; a part of the coil is located in the gap between the auxiliary magnet and the main magnet.
  • the auxiliary magnet and the main magnet are located on the same side, which means that the auxiliary magnet and the main magnet are located on the same component.
  • the component can be a display module, a middle frame, a magnetic bowl, a magnetic shield, a bracket, etc.
  • the auxiliary magnet is also arranged on the back of the display module; when the second magnet is the main magnet, the auxiliary magnet is also arranged on the middle frame.
  • the magnetic field generated by the coil can not only interact with the magnetic field generated by the main magnet, but also with the magnetic field generated by at least one auxiliary magnet, so as to achieve the purpose of increasing the coil vibration intensity or the main magnet vibration intensity.
  • the mobile terminal further includes a washer; in a case where the first magnet is the main magnet, the washer is located at the main magnet away from the display mold.
  • the side surface of the group; or, in the case where the second magnet is the main magnet, the washer is located on the side surface of the main magnet away from the middle frame.
  • the washer is made of low-carbon steel. On the one hand, it has a magnetic effect to reduce the magnetic resistance of the main magnet. On the other hand, the washer has the function of magnetic isolation.
  • the mobile terminal further includes a magnetic bowl for carrying the main magnet; when the second magnet is the main magnet, the magnetic bowl is located at the main magnet.
  • the main magnet is away from a side surface of the display module.
  • the aforementioned magnetic bowl may have a magnetic isolation effect, so as to reduce the probability that the magnetic field generated by the main magnet will adversely affect other devices in the mobile terminal.
  • the main magnet is located outside the closed area formed by the wire of the coil; the main magnet and the opposite surface of the coil are parallel.
  • the magnetic field generated by the coil and the magnetic field generated by the main magnet can attract or attract each other between the coil and the main magnet when the coil receives the first driving signal in this case. Repel each other, so that the first magnet (coil or main magnet) has a small amplitude and high frequency vibration relative to the second magnet (main magnet or coil). Therefore, the display module is driven to vibrate with a small amplitude and a high frequency through the above-mentioned first magnet, so as to realize the screen sound.
  • the mobile terminal further includes an auxiliary magnet; the auxiliary magnet and the coil are located on the same side, and the auxiliary magnet is embedded in the wire of the coil. In a closed area.
  • auxiliary magnet and the coil are located on the same side can be understood as the auxiliary magnet and the coil are located on the same component.
  • the component can be a display module, a middle frame, a magnetic bowl, a magnetic shield, a bracket, etc.
  • the auxiliary magnet is also arranged on the back of the display module; when the second magnet is a coil, the auxiliary magnet is also arranged on the middle frame.
  • the magnetic field generated by the coil can not only interact with the magnetic field generated by the main magnet, but also with the magnetic field generated by at least one auxiliary magnet, so as to achieve the purpose of increasing the coil vibration intensity or the main magnet vibration intensity.
  • the polarities of the magnets on the opposite side of the auxiliary magnet and the main magnet are the same.
  • the main magnet is set to an N pole at one end close to the auxiliary magnet, and an end far away from the auxiliary magnet is set to an S pole.
  • the auxiliary magnet is set at an end close to the main magnet as an N pole, and one end away from the main magnet is set to an N pole. It is S pole.
  • the main magnet is set to an S pole at the end close to the auxiliary magnet, and the end far away from the auxiliary magnet is set to an N pole.
  • the auxiliary magnet is set at the S pole at the end close to the main magnet, and the end far away from the main magnet is set at N pole. pole.
  • the magnetic field generated by the main magnet interacts with the magnetic field generated by the auxiliary magnet, and the opposite ends of the main magnet and the auxiliary magnet are set to the same pole, so that when the coil is not energized, the repulsive force between the main magnet and the auxiliary magnet is maintained, and the first magnet and the auxiliary magnet are enhanced.
  • the reliability of the connection of the display module prevents the display module from being attracted by the force of mutual attraction between the first magnet and the second magnet when the opposite ends of the main magnet and the auxiliary magnet are set to different poles or the auxiliary magnet is not set.
  • the group is pulled by the first magnet and deformed and the first magnet is separated from the display module.
  • the mobile terminal further includes a magnetic conductive sheet; in the case that the first magnet is the main magnet, the magnetic conductive sheet is located far away from the main magnet. One side surface of the display module, or the side surface of the auxiliary magnet away from the middle frame; or, in the case that the second magnet is the main magnet, the magnetic conductive sheet is located away from the main magnet One side surface of the middle frame or a side surface of the auxiliary magnet away from the display module.
  • the main function of the magnetic sheet is to conduct magnetism and make the magnetic force more concentrated.
  • the arrangement of the magnetic sheet can increase the magnetic flux through the coil, thereby increasing the force between the coil and the main magnet, and improving the vibration intensity of the main magnet or the coil vibration intensity .
  • the mobile terminal further includes a second magnetic isolation cover; the coil is located in the second magnetic isolation cover, and among the coils, at least in addition to the Except for the opposite side surface of the main magnet, the remaining surface is wrapped by the second magnetic shield.
  • the above-mentioned second magnetic shield can reduce the probability that the magnetic field generated by the coil will adversely affect other devices in the mobile terminal.
  • the mobile terminal does not include a first magnetic shield provided around the main magnet.
  • the magnetic field generated by the Halbach array is a unilateral magnetic field.
  • the intensity of the magnetic field on one side of the array is significantly increased, and the intensity of the magnetic field on the other side of the array is significantly weakened.
  • the magnetic field generated by the main magnet has very low interference with peripheral devices. There is no need to provide a magnetic isolation cover on the side of the main magnet, which can save the thickness space required for the installation of the main magnet, which is beneficial to the thickness reduction of the mobile terminal.
  • the space saved by saving the magnetic shield can also be exchanged for larger magnet space, such as increasing the size of the main magnet and/or auxiliary magnet, or increasing the number of turns of the coil, thereby further enhancing the main magnet
  • larger magnet space such as increasing the size of the main magnet and/or auxiliary magnet, or increasing the number of turns of the coil, thereby further enhancing the main magnet
  • the interaction between the magnetic field and the magnetic field generated by the coil increases the vibration intensity of the main magnet.
  • the mobile terminal further includes a first magnetic isolation cover; the main magnet is located in the first magnetic isolation cover, and in the main magnet, in addition to the Except for the opposite side surface of the coil, the remaining surface is wrapped by the first magnetic shield.
  • the above-mentioned first magnetic shield can reduce the probability that the magnetic field generated by the main magnet will adversely affect other devices in the mobile terminal.
  • the polarity of the magnet on the opposite side of the auxiliary magnet and the main magnet is the same.
  • the main magnet can be in a balanced state under the combined action of the magnetic field generated by the auxiliary magnet and the magnetic field generated by the second magnetic shield, with almost no force.
  • the auxiliary magnet, the first magnetic shield, and the second magnetic shield can be in a balanced state under the combined action of the magnetic field, with almost no force.
  • the display module can also be balanced, the reliability of the connection between the first magnet and the display module can be enhanced, and the opposite poles of the main magnet and the auxiliary magnet or no auxiliary magnet can be avoided.
  • the mutual attraction force between the magnet and the second magnet causes the display module to be pulled by the first magnet to deform, such as the display module being concave and the first magnet and the display module being separated.
  • the auxiliary magnet is located in the second magnetic shield, and the coil is opposite to the auxiliary magnet The surface of is not covered by the second magnetic shield.
  • the above-mentioned second magnetic shield can also reduce the probability that the magnetic field of the auxiliary magnet will adversely affect other devices in the mobile terminal.
  • the main magnet includes a first main magnet part and a second main magnet part, and the second main magnet part is ring-shaped and nested in the first main magnet Partly; the magnetic pole direction of the second main magnet portion is perpendicular to the magnetic pole direction of the first main magnet portion.
  • the first main magnet part is circular, and the second main magnet part is annular.
  • the first main magnet part is set at the end far away from the display module as an N pole, and the end close to the display module is set as an S pole; the second main magnet part is set close to the first main magnet.
  • One end of the magnet part is set as an N pole, and one end away from the first main magnet part is set as an S pole.
  • the main magnet arranged in this way when used as the first magnet, can generate strong magnetism on the side close to the coil and weak magnetism on the side close to the display module.
  • the first main magnet part is set to the N pole at the end close to the display module, and the end far away from the display module is set to the S pole; the second main magnet part is set close to the first main magnet.
  • One end of the magnet part is set as an N pole, and one end away from the first main magnet part is set as an S pole.
  • the main magnet arranged in this way when used as the second magnet, can generate strong magnetism on the side close to the coil and weak magnetism on the side close to the middle frame.
  • the mobile terminal further includes a bracket; the bracket is disposed on a side surface of the middle frame away from the display module, and is connected to the middle frame
  • the middle frame is provided with an opening; at least a part of the second magnet is located in the opening on the middle frame; the second magnet passes through the opening on the middle frame and is arranged in the On the stand.
  • the distance between the first magnet and the second magnet can be increased, which is beneficial to increase the vibration space of the first magnet and the second magnet.
  • the mobile terminal further includes a reed and a supporting block; the reed and the supporting block are located in an opening on the middle frame; the reed Located between the second magnet and the support, and the reed is connected to the second magnet; the support block is arranged between the reed and the support, and the upper part of the support block, The lower surface is respectively connected with the reed and the bracket.
  • the resonance frequency of the sound system composed of the first magnet, the display module, and foam glue is much greater than the resonance frequency of the vibration system composed of reeds. Therefore, the above-mentioned reed can function as a frequency divider.
  • the coil receives the first driving signal of medium and high frequency
  • the above-mentioned first magnet drives the display module to vibrate, so that the sound system works and the screen sound is realized.
  • the coil receives the second driving signal of low frequency
  • the second magnet drives the reed and the middle frame connected with the reed to vibrate, so that the vibration system works and realizes the vibration of the whole machine.
  • connection between the reed and the second magnet includes the direct connection or indirect connection between the reed and the second magnet.
  • the reed is connected to the second magnet. It should be understood that the reed and the second magnet are connected through the magnetic bowl, that is, the second magnet is carried in the magnetic bowl, and the reed is connected to the magnetic bowl.
  • the mobile terminal includes the first magnetic isolation cover or the second magnetic isolation cover
  • the reed and the second magnet are connected
  • the reed and the second magnet are connected through the first magnetic isolation cover or the second magnetic isolation cover, That is, the second magnet is wrapped in the first or second magnetic isolation cover, and the reed is connected with the first or second magnetic isolation cover.
  • the mobile terminal further includes a reed and a support block; the reed, the support block, the first magnet, and the second magnet are all located at the same location.
  • the accommodating space; the reed is located between the second magnet and the middle frame, and the reed is connected to the second magnet; the support block is disposed on the reed and the middle frame And the upper and lower surfaces of the support block are respectively connected with the reed and the middle frame.
  • components such as the first magnet, the second magnet and the reed can all be arranged in the containing space formed between the display module and the middle frame.
  • the technical effect of the above reed is the same as that described above, and will not be repeated here.
  • the mobile terminal further includes a support sheet; the upper surface of the support sheet is connected to the display module; the lower surface of the support sheet is connected to the second A magnet is connected; wherein the area of the upper surface of the support piece is larger than the area of the side surface of the first magnet close to the support piece.
  • the supporting sheet since the supporting sheet has a sheet-like structure, its contact area with the display module is relatively large. Therefore, by contacting the upper and lower surfaces of the support sheet with the display module and the first magnet, respectively, the contact area between the first magnet and the display module can be increased, so that the first magnet will show the display module when the first magnet is vibrating.
  • the driving force provided by the group can be applied to the display module more evenly.
  • the area of the deformation area of the display module can be enlarged, the efficiency of the first magnet driving the display module to vibrate can be increased, the power consumption can be reduced, and the sound effect of the screen can be improved.
  • the lower surface of the support piece is connected to the first magnet, and it should be understood that the lower surface of the support piece passes through the first magnetic isolation cover.
  • the cover or the second magnetic isolation cover is connected with the first magnet. That is, the first magnet is wrapped in the first magnetic shield or the second magnetic shield, and the lower surface of the support piece is connected with the upper surface of the first magnetic shield or the second magnetic shield.
  • a vibration module including: a first magnet and a second magnet; the first magnet and the second magnet are positioned opposite to each other; wherein, the first magnet is a coil, and the first magnet is a coil.
  • the two magnets are the main magnets; or, the first magnet is the main magnet, and the second magnet is the coil; the main magnet is a Halbach array, and the main magnet has a single side on the side opposite to the coil. magnetic field.
  • the vibration module there is an interaction force between the magnetic field generated by the first magnet and the magnetic field generated by the second magnet.
  • the first magnet A magnet or a second magnet can move up and down with small amplitude and high frequency.
  • the driven component can be used as a diaphragm to push the air to produce sound during the vibration process to achieve sound generation, thereby realizing the function of an earpiece or a speaker.
  • the Halbach array can generate a unilateral magnetic field.
  • the magnetic field strength of the main magnet on the side close to the coil can be significantly increased, while the magnetic field strength on the other side can be significantly reduced.
  • the magnetic field generated by the coil interacts with the magnetic field generated by the main magnet, the magnetic force received by the main magnet and the coil is significantly increased, which can increase the vibration intensity of the coil or the main magnet.
  • a part of the main magnet is embedded in a closed area formed by the wire of the coil.
  • the vibration module includes at least one auxiliary magnet; the auxiliary magnet and the main magnet are located on the same side, and between the auxiliary magnet and the main magnet There is a gap; a part of the coil is located in the gap between the auxiliary magnet and the main magnet.
  • the vibration module further includes a magnetic bowl for carrying the main magnet.
  • the main magnet is located outside the closed area formed by the wire of the coil; and the opposite surfaces of the main magnet and the coil are parallel.
  • the vibration module further includes an auxiliary magnet; the auxiliary magnet and the coil are located on the same side, and the auxiliary magnet is embedded in the wire of the coil to form In the enclosed area.
  • the polarities of the magnets on the opposite side of the auxiliary magnet and the main magnet are the same.
  • the vibration module further includes a second magnetic isolation cover; the coil is located in the second magnetic isolation cover, and in the coil, at least in addition to the Except for the opposite side surface of the main magnet, the remaining surface is wrapped by the second magnetic shield.
  • the vibration module further includes a first magnetic isolation cover; the main magnet is located in the first magnetic isolation cover, and in the main magnet, in addition to and Except for the opposite side surface of the coil, the remaining surface is wrapped by the first magnetic isolation cover.
  • the main magnet includes a first main magnet part and a second main magnet part, and the second main magnet part is ring-shaped and nested in the first main magnet Partly; the magnetic pole direction of the second main magnet portion is perpendicular to the magnetic pole direction of the first main magnet portion.
  • FIG. 1 is a schematic structural diagram of a mobile terminal provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a structure of the display module in FIG. 1;
  • FIG. 3 is a schematic diagram of another structure of the display module in FIG. 1;
  • FIG. 4 is a schematic structural diagram of a mobile terminal with a vibrator according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a structure of the vibrator in the mobile terminal shown in FIG. 4;
  • FIG. 6 is a schematic diagram of a structure of the first magnet and the second magnet in the mobile terminal shown in FIG. 5;
  • FIG. 7 is another schematic diagram of the structure of the first magnet and the second magnet in the mobile terminal shown in FIG. 5;
  • FIG. 8 is a schematic structural diagram of another mobile terminal with a vibrator according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of signal transmission for the mobile terminal shown in FIG. 5 to realize screen sound
  • FIG. 10 is another schematic diagram of the structure of the first magnet and the second magnet in the mobile terminal shown in FIG. 5;
  • Figure 11 is a top view of the coil and the main magnet shown in Figure 10;
  • Figure 12 is another top view of the coil and main magnet shown in Figure 10;
  • FIG. 13 is a schematic diagram of another structure of the first magnet and the second magnet in the mobile terminal shown in FIG. 5;
  • FIG. 14 is a schematic diagram of another structure of the first magnet and the second magnet in the mobile terminal shown in FIG. 5;
  • 15 is a schematic diagram of the interaction between the magnetic field generated by the coil shown in FIG. 13 and the magnetic field generated by the main magnet;
  • 16 is another schematic diagram of the interaction between the magnetic field generated by the coil shown in FIG. 13 and the magnetic field generated by the main magnet;
  • FIG. 17 is a schematic diagram of another structure of the first magnet and the second magnet in the mobile terminal shown in FIG. 5;
  • FIG. 18 is a schematic diagram of another structure of the first magnet and the second magnet in the mobile terminal shown in FIG. 5;
  • FIG. 19 is a schematic structural diagram of a mobile terminal having a vibrator and an elastic element according to an embodiment of the present application.
  • Fig. 20 is a schematic diagram of a structure of the elastic element in Fig. 19;
  • FIG. 21 is a schematic diagram of an arrangement of the vibrator and the reed in the mobile terminal shown in FIG. 20;
  • FIG. 22 is a schematic diagram of another arrangement of the vibrator and the reed in the mobile terminal shown in FIG. 20;
  • FIG. 23 is a schematic diagram of another arrangement of the vibrator and the reed in the mobile terminal shown in FIG. 20;
  • FIG. 24 is a schematic diagram of another arrangement of the vibrator and the reed in the mobile terminal shown in FIG. 20;
  • FIG. 25 is a schematic diagram of another setting manner of the vibrator and the reed in the mobile terminal shown in FIG. 20;
  • FIG. 26 is a schematic diagram of another arrangement of the vibrator and the reed in the mobile terminal shown in FIG. 20;
  • FIG. 27 is a schematic diagram of a manner of setting the vibrator and the reed in the mobile terminal shown in FIG. 19;
  • FIG. 28 is a schematic diagram of signal transmission for the mobile terminal shown in FIG. 21 to realize vibration of the whole machine;
  • FIG. 29 is a schematic diagram of signal transmission for the mobile terminal shown in FIG. 21 to realize screen sound and vibration of the whole machine;
  • FIG. 30 is a schematic diagram of a manner of setting multiple vibrators in a mobile terminal according to an embodiment of the present application.
  • FIG. 31 is a schematic diagram of a magnetic pole setting method of the first magnet and the second magnet in the mobile terminal shown in FIG. 17;
  • Figure 32 is a schematic diagram of the spatial magnetic field distribution of a conventional permanent magnet and a Halbach array
  • FIG. 33 is a schematic structural diagram of a Halbach array provided by an embodiment of the present application.
  • FIG. 34 is a schematic diagram of the interaction between the magnetic field generated by the main magnet and the magnetic field generated by the auxiliary magnet shown in FIG. 31;
  • 35 is a schematic diagram of the interaction of the magnetic fields generated by the coil, the main magnet, and the auxiliary magnet shown in FIG. 31;
  • FIG. 36 is another schematic diagram of the interaction of the magnetic fields generated by the coil, the main magnet, and the auxiliary magnet shown in FIG. 31;
  • FIG. 37 is a schematic diagram of another magnetic pole setting method of the first magnet and the second magnet in the mobile terminal shown in FIG. 17;
  • FIG. 38 is another schematic diagram of the structure of the first magnet and the second magnet in the mobile terminal shown in FIG. 5;
  • FIG. 39 is a schematic diagram of another structure of the first magnet and the second magnet in the mobile terminal shown in FIG. 5;
  • FIG. 40 is a schematic diagram of another structure of the first magnet and the second magnet in the mobile terminal shown in FIG. 5;
  • FIG. 41 is a schematic diagram of another structure of the first magnet and the second magnet in the mobile terminal shown in FIG. 5.
  • first”, “second”, etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first”, “second”, etc. may explicitly or implicitly include one or more of these features.
  • the principle of the screen sound technology is to use the screen to replace the diaphragm in the traditional speaker, drive the screen through the vibration sound module installed in the mobile terminal, use the screen as a vibrating body, and transmit sound waves to the human ear through the screen vibration.
  • the existing screen sound technology mainly uses exciters or piezoelectric ceramics to drive the screen to vibrate.
  • exciters or piezoelectric ceramics to drive the screen to vibrate.
  • the following is a brief introduction to these two screen sound technologies.
  • the principle of the screen sound technology that uses an exciter to drive the screen is the same as that of a traditional speaker, that is, the interaction of electric and magnetic fields is used to generate a force field.
  • the exciter consists of a coil and a magnet.
  • the coil can pass currents of different sizes and directions. Under a constant magnetic field with the same size and direction generated by the magnet, the size and direction of the magnetic field generated by the coil change with the change of the current signal. Constantly changing, so that the interaction of the magnetic field generated by the coil and the magnetic field generated by the magnet causes the coil to move perpendicular to the direction of the current in the coil, thereby generating vibration.
  • the solution can be fixed by a magnet and the screen vibrated by the coil, or fixed by the coil and the screen vibrated by the magnet.
  • the exciter can be fixed on the middle frame, and the vibration is transmitted to the screen through the middle frame.
  • the weight of the whole machine is much larger than the weight of the exciter, which ultimately results in insufficient vibration force transmitted to the screen.
  • the sound from the screen is small.
  • the exciter can also be directly fixed on the screen to directly transmit the vibration to the screen.
  • the flexible circuit board connected to the coil in the exciter The flexible printed circuit (FPC) is generally fixed on the middle frame, and the exciter is fixed on the screen.
  • the piezoelectricity of piezoelectric ceramics is mainly used to generate vibration.
  • the positive and negative charge centers inside the piezoelectric ceramics are polarized in relative positions, resulting in the opposite sign of bound charges appearing on the surfaces of both ends of the dielectric, and the displacement causes mechanical deformation of the dielectric, so the two layers After the electric ceramic is applied with current, it will cause piezoelectric deformation, and after the alternating current is applied, it will repeatedly deform and cause vibration.
  • the piezoelectric ceramic sheet can be fixed on the middle frame (similar to a cantilever beam), and the middle frame is vibrated by the piezoelectric ceramic sheet to produce a sound effect similar to an earpiece.
  • This cantilever beam structure is fixed to the middle frame to generate vibration.
  • the middle frame not only transmits the vibration to the screen to make the screen vibrate and become a sound source, but also transmits the vibration to the back cover of the mobile terminal, etc., which makes the back of the mobile terminal vibrate and become another source of sound.
  • a sound source will introduce the problem of sound leakage, and the user's privacy experience is poor.
  • the vibration and sound modules used in the existing screen sound technology all have insufficient driving force for the screen, which leads to the problem of low sound from the screen and poor sound effect.
  • the embodiments of the present application will provide a mobile terminal that can solve the problem of low screen sound, thereby improving the screen sound effect and improving user experience.
  • the embodiment of the present application provides a mobile terminal 01 as shown in FIG. 1.
  • the mobile terminal 01 includes, for example, mobile phones (e.g., cellular phones, smart phones), tablet computers, laptop computers, personal digital assistants (personal digital assistants, PDAs), in-vehicle computers, Smart watch, smart wristband, etc.
  • the embodiment of the present application does not impose special restrictions on the specific form of the above-mentioned mobile terminal 01.
  • the following description takes the mobile terminal 01 as a mobile phone as an example.
  • the above-mentioned mobile terminal 01 mainly includes a display module 10, a middle frame 11, and a housing 12.
  • the display module 10 and the housing 12 are respectively arranged on both sides of the middle frame 11.
  • the aforementioned mobile terminal 01 also includes a central processing unit (CPU) arranged on a printed circuit board (PCB).
  • CPU central processing unit
  • PCB printed circuit board
  • the above-mentioned display module 10, as shown in FIG. 2, includes a display panel (DP) 101.
  • DP display panel
  • the above-mentioned display screen 101 may be a liquid crystal display (LCD) screen.
  • the display module 10 further includes a backlight unit (BLU) 102 for providing a light source to the liquid crystal display screen.
  • BLU backlight unit
  • the above-mentioned display screen 101 is an organic light emitting diode (OLED) display screen, and the OLED display screen can realize self-luminescence, so the display module There is no need to set the above BLU in 10.
  • OLED organic light emitting diode
  • the base substrate in the above-mentioned OLED display screen may be made of a flexible resin material.
  • the OLED display is a flexible display.
  • the base substrate in the above-mentioned OLED display screen may also be made of a material with a relatively hard texture, such as glass.
  • the aforementioned OLED display is a hard display.
  • the above-mentioned display module 10 further includes a cover 103 located on the display side of the display screen 101, such as cover glass (CG).
  • the cover glass has certain toughness.
  • the aforementioned middle frame 11 is located between the display module 10 and the housing 12.
  • the middle frame 11 is provided with a ring bearing platform 110 on the side close to the display module 10.
  • Foam glue 111 is pasted on the carrying platform 110.
  • the display module 10 is fixed to the middle frame 11 by the aforementioned foam glue 111 so that the display module 10 is connected to the middle frame 11.
  • the display module 10 has a light-emitting surface capable of displaying images, and the back surface of the above-mentioned display module 10 refers to a side surface of the display module 10 opposite to the light-emitting surface, that is, the display module 10 Close to one side surface of the middle frame 11.
  • the second surface B2 of the middle frame 11 is used to mount internal components such as a battery, a printed circuit board (PCB), a camera, and an antenna.
  • internal components such as a battery, a printed circuit board (PCB), a camera, and an antenna.
  • first surface B1 and the second surface B2 of the middle frame 11 are arranged opposite to each other.
  • the first surface B1 is close to the display module 10 and the second surface B2 is close to the casing 12.
  • the housing 12 is installed on the middle frame 11, and the housing 12 can protect the above-mentioned internal components installed on the second surface B2 of the middle frame 11.
  • the aforementioned mobile terminal 01 further includes at least one vibrator 201 as shown in FIG. 4.
  • the vibrator 201 is connected with the display module 10 and the middle frame 11.
  • the above-mentioned vibrator 201 is also electrically connected to the first signal terminal S1 of the CPU (as shown in FIG. 1), and the vibrator 201 is used to receive the first driving signal provided by the first signal terminal S1, and according to the first driving signal.
  • the signal drives the display module 10 to vibrate in a direction perpendicular to the light-emitting surface A of the display module 10.
  • the above-mentioned first driving signal may be a medium or high frequency signal.
  • the first driving signal may be an audio analog signal corresponding to an audio digital signal that is sent to the vibrator 201 by the CPU of the mobile phone.
  • the display module 10 is mounted on the carrier 110 through the foam glue 111 described above.
  • the foam glue 111 has certain elasticity and can be deformed under the action of external force. In this way, when the vibrator 201 vibrates in a direction perpendicular to the light-emitting surface A of the display module 10 according to the above-mentioned first driving signal, the vibrator 201 will drive the display module 10 to have a small amplitude and high frequency relative to the middle frame 11. Up and down movement.
  • the small amplitude and high frequency vibration generated by the display module 10 cannot drive the middle frame 11 to vibrate, so the middle frame 11 is approximately in a static state.
  • the display module 10 acts as a diaphragm to push the air to generate sound during the vibration process, so as to realize the screen sound.
  • the part of the vibrator 201 in contact with the display module 10 may be the BLU shown in FIG. 2, or the OLED shown in FIG. Cover plate CG shown in Figure 3.
  • the area of the cover plate is larger than the area of the display screen, so the vibrator can only touch the cover plate.
  • the vibrator 201 can also drive other components of the mobile terminal to produce sound, such as the housing 12.
  • the above-mentioned vibrator 201 may be disposed between the middle frame 11 and the casing 12, and the vibrator 201 is connected to the middle frame 11 and the casing 12.
  • the vibrator 201 is connected with the middle frame and the battery back cover.
  • the vibrator 201 receives the first driving signal provided by the first signal terminal S1 and responds according to the received
  • the first driving signal is to drive the battery back cover to produce small amplitude and high frequency up and down movement relative to the middle frame 11 along the direction perpendicular to the battery back cover, and drive the battery back cover to generate small amplitude and high frequency vibrations
  • the battery back cover acts as a diaphragm, which pushes the air to produce sound during the vibration process, so that the battery back cover can produce sound.
  • the embodiments of the present application mainly take the vibrator 201 to realize screen sound as an example for description.
  • the display screen 101 in the display module 10 may be an LCD screen or an OLED display screen.
  • OLED displays can self-illuminate. Therefore, there is no need to provide a BLU in the display module 10, so the thickness of the display module 10 is thin. When it is used as a diaphragm to realize screen sound, it is more likely to be deformed, so that the sound effect of the diaphragm is better.
  • part of the structure of the vibrator 201, the display module 10, and the foam glue 111 for fixing the display module 10 to the middle frame 11 constitute a sound system for realizing screen sound.
  • part of the structure of the vibrator 201, the elastic coefficient of the display module 10 and the foam glue 111 can affect the resonance frequency of the sound system.
  • the frequency of the first drive signal is the same or approximately the same as the resonance frequency of the sound system.
  • the aforementioned vibrator 201 includes a first magnet 21 and a second magnet 22.
  • the first magnet 21 is arranged on the back of the display module 10, and the second magnet 22 is arranged on the middle frame 11.
  • the positions of the first magnet 21 and the second magnet 22 are relatively arranged.
  • at least a part of the first magnet 21 and the second magnet 22 is located in the above-mentioned accommodation space 20.
  • the first magnet can move along the vertical direction. Vibrate in the direction of the light-emitting surface of the display module. Since the first magnet is arranged on the back of the display module, the first magnet will drive the display module to move up and down with a small amplitude and high frequency relative to the middle frame. Driven by the first magnet, the display module acts as a diaphragm, which pushes the air to generate sound during the vibration process, so as to realize the screen sound, so as to realize the function of an earpiece or a speaker.
  • the structure and arrangement of the first magnet 21 and the second magnet 22 in the vibrator 201 will be described in detail below.
  • the above-mentioned first magnet 21 is a coil 211
  • the second magnet 22 is a main magnet 2210.
  • the coil 211 is arranged on the back of the display module 10 and the main magnet 2210 is arranged on the middle frame 11.
  • the first magnet 21 is the main magnet 2210 and the second magnet is the coil 211.
  • the above-mentioned main magnet 2210 is arranged on the back of the display module 10 and the coil 211 is arranged on the middle frame 11.
  • a part of the main magnet 2210 is embedded in the closed area where the wire of the coil 211 is wound.
  • the second magnet 22 for example, the main magnet 2210 shown in FIG. 6 or the coil 211 shown in FIG. 7 to be provided on the middle frame 11.
  • an opening is provided on the middle frame 11.
  • the aforementioned mobile terminal 01 includes a stand 223. At least a part of the main magnet 2210 or the coil 211 is located in the opening on the middle frame 11.
  • the bracket 223 can be fixed on the second surface B2 (the surface away from the display module 10) of the middle frame 11 by means of glue layer or screw connection (in FIG. 6, screw connection is taken as an example).
  • the second magnet 22 (for example, the main magnet 2210 shown in FIG. 6 or the coil 211 shown in FIG. 7) passes through the opening on the middle frame 11 and is set on the bracket 223.
  • the second magnet 22 can be fixed on the surface of the bracket 223 close to the display module 10 through an adhesive layer.
  • the entire vibrator 201 can be arranged between the display module 10 and Between box 11.
  • the main magnet 2210 and the coil 211 are both located in the accommodating space 20 between the display module 10 and the middle frame 11.
  • the second magnet 22 (for example, the main magnet 2210 shown in FIG. 8) can be directly fixed on the side surface of the middle frame 11 close to the display module 10 through an adhesive layer.
  • the positions of the main magnet 2210 and the coil 211 in FIG. 8 can also be interchanged, that is, the first magnet 21 is the main magnet 2210 and the second magnet 22 is the coil 211.
  • the coil 211 as the second magnet 22 can be directly fixed on the side surface of the middle frame 11 close to the display module 10 through an adhesive layer.
  • the coil 211 is electrically connected to the first signal terminal S1 of the aforementioned CPU.
  • the first driving signal provided by the first signal terminal S1 of the CPU is processed by the filter 30 and the first power amplifier 40, and then transmitted to the vibrator 201 In the coil 211.
  • the filter 30 can filter out the low-frequency signal in the first driving signal, so that the frequency of the first driving signal is closer to the frequency of the sound generating system.
  • the above-mentioned first power amplifier 40 can amplify the signal output by the filter 30 so as to drive the coil 211 in the vibrator 201 to generate an alternating magnetic field through the amplified first drive signal.
  • the coil 211 when the coil 211 receives the first driving signal (ie, medium and high-frequency signal), the coil 211 generates an alternating magnetic field under the action of the first driving signal.
  • the first driving signal ie, medium and high-frequency signal
  • the magnitude and direction of the magnetic field generated by the coil 211 change with the change of the first driving signal. For example, when the coil 211 receives the above-mentioned first driving signal, when the current in the coil 211 is large, the magnetic field intensity generated by the coil 211 is large, and vice versa.
  • the transmission direction of the current in the coil 211 can control the direction of the magnetic field generated by the coil 211.
  • the above-mentioned main magnet 2210 may be a permanent magnet or an electromagnet that receives a constant current. In this case, the main magnet 2210 will generate a constant magnetic field with the same size and direction.
  • the first driving signal is a medium- and high-frequency signal, and its frequency is close to the resonance frequency of the above-mentioned sound system. Therefore, under the interaction of the above two magnetic fields, the coil 211 in the sound system can cut the small amplitude and high frequency vibration on and off the magnetic induction line along the above Z direction.
  • the coil 211 in the vibrator 201 is connected to the display module 10 in the above-mentioned sound system, the coil 211 can drive the display module 10 up and down in the same direction while vibrating up and down in the Z direction. And high frequency vibration.
  • the coil 211, the display module 10, and the foam glue 111 used to fix the display module 10 form a sound system.
  • the display module 10 acts as a diaphragm to push the air to produce sound during the vibration process to achieve the purpose of sound on the screen. .
  • the above-mentioned sound system can realize the function of an earpiece or a speaker to play the audio signal.
  • the frequency of the first driving signal is directly proportional to the vibration frequency of the display module 10.
  • the magnitude of the first driving signal that is, the magnitude of the current passing through the coil 211
  • the direction of the first driving signal that is, the direction of the current passing through the coil 211
  • the vibration form including: vibration frequency, amplitude, direction, etc.
  • the above-mentioned vibrator 201 further includes a supporting sheet 212.
  • the upper surface of the supporting piece 212 is fixedly installed on the side surface of the display module 10 close to the middle frame 11, and the lower surface of the supporting piece 212 is connected to the first magnet 21 (for example, the coil 211 shown in FIG. The main magnet 2210) is fixedly connected.
  • the above-mentioned first magnet 21 is connected to the display module 10 through the supporting sheet 212.
  • the supporting sheet 212 since the supporting sheet 212 has a sheet-like structure, its contact area with the display module 10 is larger than the area where the first magnet 11 directly contacts the display module 10. Therefore, by contacting the upper and lower surfaces of the support sheet 212 with the display module 10 and the first magnet 21, respectively, the contact area between the first magnet 21 and the display module 10 can be increased, so that the first magnet 21 can vibrate. In the process, the driving force provided to the display module 10 can be applied to the display module 10 more evenly.
  • the deformation area of the display module 10 can be enlarged, the efficiency of the first magnet 21 to drive the display module 10 to vibrate can be increased, power consumption can be reduced, and the sound effect of the screen can be improved.
  • the material constituting the above-mentioned support sheet 212 may be a metal material such as a steel sheet, or other materials with a relatively hard texture.
  • the first magnet 21 for example, the coil 211 shown in FIG. 6 or the main magnet 2210 shown in FIG. 7
  • the display module 10 and the foam glue 111 constitute the above-mentioned sound system.
  • the resonance frequency of the sound system can be determined by the elastic coefficient of the first magnet 21 and the supporting sheet 212, and the elastic coefficient of the display module 10 and the foam glue 111.
  • the frequency of the first driving signal is quite different from the resonance frequency of the middle frame 11. Therefore, the interaction between the magnetic field generated by the coil 211 and the magnetic field of the main magnet 2210 cannot drive the middle frame 11 to move up and down along the above-mentioned Z direction, and the middle frame 11 is in a stationary state.
  • the magnetic field generated by the coil 211 interacts with the magnetic field generated by the main magnet 2210, which can make
  • the coil 211 shown in FIG. 6 drives the display module 10 to vibrate with a small amplitude and a high frequency.
  • the display module 10 acts as a diaphragm to push air to produce sound.
  • the sound system constituted by the coil 211, the display module 10, and the foam glue 111 used to fix the display module 10 on the middle frame 11 produces sound, realizing the function of an earpiece or a speaker.
  • the coil 211 is provided on the middle frame 11 as the second magnet 22.
  • the lower surface of the coil 211 may be fixed to the upper surface of the bracket 223 connected to the middle frame 11 through an adhesive layer.
  • the coil 211 needs to be electrically connected to the first signal terminal S1 of the CPU installed on the middle frame 11 to respectively receive the first driving signal provided by the first signal terminal S1. Therefore, mounting the coil 211 on the middle frame 11 can simplify the electrical connection between the coil 211 and the CPU, and improve the reliability of the electrical connection between the coil 211 and the CPU.
  • arranging the main magnet 2210 as the first magnet 21 on the back of the display module 10 can avoid the solution of connecting the coil 211 as the first magnet 21 to the display module 10, because the coil 211 generates heat after being energized. , And reduce the display effect of the display module 10.
  • the above-mentioned first magnet 21 is a coil 211
  • the second magnet 22 is a main magnet 2210.
  • a part of the main magnet 2210 is embedded in the closed area formed by the wire of the coil 211.
  • the vibrator 201 further includes at least one auxiliary magnet 2211 located at the periphery of the main magnet 2210.
  • the auxiliary magnet 2211 and the main magnet 2210 are located on the same side. In this case, as shown in FIG. 10, when the main magnet 2210 is installed on the middle frame 11 through the bracket 223, the auxiliary magnet 2211 is also installed on the middle frame 11. Alternatively, when the main magnet 2210 is disposed on the back of the display module 10 through the supporting sheet 212, the auxiliary magnet 2211 is also disposed on the back of the display module 10.
  • the main magnet 2210 is located in the closed area formed by the wire of the coil 211.
  • four auxiliary magnets 2211 are arranged around the main magnet 2210 to form a five magnetic circuit.
  • the circular main magnet 2210 is located in a ring-shaped auxiliary magnet 2211 to form a dual magnetic circuit.
  • the magnetic field generated by the coil 211 not only interacts with the magnetic field generated by the main magnet 2210, but also interacts with the magnetic field generated by at least one auxiliary magnet 2211 to achieve the purpose of increasing the vibration intensity of the coil 211 or the main magnet 2210.
  • the vibrator 201 further includes a magnetic bowl 226.
  • the upper surface of the magnetic bowl 226 is fixedly connected to the lower surfaces of the main magnet 2210 and the auxiliary magnet 2211 through an adhesive layer.
  • the lower surface of the magnetic bowl 226 passes through the opening on the middle frame 11 and is fixed to the upper surface of the bracket 223 through the adhesive layer. .
  • the material constituting the magnetic bowl 226 may be stainless steel.
  • the above-mentioned magnetic bowl 226 may have a magnetic isolation effect, so as to reduce the probability that the magnetic field generated by the main magnet 2210 and the auxiliary magnet 2211 will adversely affect other devices in the mobile terminal 01.
  • the vibrator 201 also includes a washer 225 covering the surface of the main magnet 2210 and the auxiliary magnet 2211 close to the display module 10 (the main magnet in FIG. The magnet 2210 and the auxiliary magnet 2211 are close to the black covering layer on the upper surface of the display module 10).
  • the washer 225 is made of low-carbon steel. On the one hand, it has a magnetizing effect to achieve the purpose of reducing the magnetic resistance of the main magnet 2210 and the auxiliary magnet 2211. On the other hand, the washer 225 has the above-mentioned magnetic isolation function. It should be noted that the mobile terminal 01 shown in FIG. 10 can also implement the screen sounding process described in Example 1, which will not be repeated here.
  • the positions of the main magnet 2210, the auxiliary magnet 2211, and the coil 211 in FIG. 10 can also be interchanged, that is, the first magnet 21 is the main magnet 2210, and the second magnet 22 is the coil 211.
  • the main magnet 2210 and the auxiliary magnet 2211 are fixed to the back of the display module 10, and the coil 211 is fixed to the upper surface of the bracket 223 through the opening in the middle frame.
  • the washer 225 covers the surface of the main magnet 2210 and the auxiliary magnet 2211 away from the display module 10. The process for the mobile terminal with this structure to realize screen sound is the same as described above, and will not be repeated here.
  • the above-mentioned first magnet 21 is a coil 211
  • the second magnet 22 is a main magnet 2210.
  • the coil 211 may be arranged on the back of the display module 10 and the main magnet 2210 may be arranged on the middle frame 11.
  • the above-mentioned first magnet 21 is a main magnet 2210 and the second magnet 22 is a coil 211.
  • the above-mentioned main magnet 2210 may be arranged on the back of the display module 10 and the coil 211 may be arranged on the middle frame 11.
  • the top view structure of the coil 211 may adopt the ring structure shown in FIG. 11 or 12.
  • the difference from the first example is that the main magnet 2210 is located outside the closed area where the wire of the coil 211 is wound.
  • the opposing surfaces of the main magnet 2210 and the coil 211 are parallel.
  • the main magnet 2210 does not need to be embedded in the closed area formed by the wire of the coil 211, which solves the problem that the closed area formed by the main magnet 2210 and the wire of the coil 211 cannot be aligned. Therefore, it is beneficial to reduce the alignment accuracy of the main magnet 2210 and the coil 211, which reduces the difficulty of assembling the whole mobile terminal 01.
  • the magnetic field generated by the coil 211 can generate an attractive force with the magnetic field generated by the main magnet 2210.
  • the magnetic field generated by the coil 211 can generate a repulsive force with the magnetic field generated by the main magnet 2210.
  • the vibration directions of the coil 211 and the main magnet 2210 are opposite.
  • the aforementioned distance may be less than or equal to 0.7 mm. In some embodiments of the present application, the aforementioned distance may also be less than or equal to 0.4 mm.
  • the mobile terminal 01 shown in FIGS. 13 and 14 can also implement the above-mentioned screen sounding process.
  • the difference is that in this example, when the coil 211 in the vibrator 201 receives the above-mentioned first drive signal, the magnetic field generated by the coil 211 and the magnetic field generated by the main magnet 2210 make the coil 211 and the main magnet 2210 be able to phase each other. Attract or repel each other, so that the first magnet 21 (for example, the coil 211 shown in FIG. 13 or the main magnet 2210 shown in FIG. 14) is relative to the second magnet 22 (for example, the main magnet 2210 shown in FIG.
  • the coil 211 shown at 14 oscillates with a small amplitude and a high frequency along the Z direction. Therefore, the display module 10 is driven to vibrate with a small amplitude and a high frequency through the above-mentioned first magnet 21, so as to realize the screen sound.
  • the mobile terminal 01 provided by some embodiments of the present application further includes the one shown in FIG. 13 or FIG. 14 The first magnetic shield 51 and the second magnetic shield 52.
  • the remaining surface is wrapped by the first magnetic shield 51.
  • At least the surface of the coil 211 except for the side surface opposite to the main magnet 2210 is wrapped by the second magnetic shield 52.
  • the upper surface of the support sheet 212 is fixedly installed on the side surface of the display module 10 close to the middle frame 11, and the lower surface of the support sheet 212 passes through the first magnetic shield 51 or the second magnetic shield 52 and the second magnetic shield.
  • a magnet 21 (for example, the coil 211 shown in FIG. 13 or the main magnet 2210 shown in FIG. 14) is fixedly connected.
  • the lower surface of the support sheet 212 is connected to the second magnetic shield 52, and the coil 211 is wrapped in the second magnetic shield 52, that is, the lower surface of the support sheet 212 is connected to the coil 211 through the second magnetic shield 52. connection.
  • the lower surface of the support piece 212 is connected to the first magnetic isolation cover 51, the main magnet 2210 is wrapped in the first magnetic isolation cover 51, that is, the lower surface of the support piece 212 passes through the first magnetic isolation cover 51 and the main magnet 2210 is connected.
  • the above-mentioned first magnet 21 is a coil 211
  • the second magnet 22 is a main magnet 2210.
  • the main magnet 2210 is located outside the closed area formed by the wire of the coil 211.
  • the opposing surfaces of the main magnet 2210 and the coil 211 are parallel.
  • the structure of the coil 211 is the same as in the third example.
  • the vibrator 201 further includes an auxiliary magnet 2211.
  • the auxiliary magnet 2211 and the coil 211 are located on the same side, and the auxiliary magnet 2211 is embedded in the closed area formed by the wire of the coil 211.
  • the magnetic field generated by the coil 211 can not only interact with the magnetic field generated by the main magnet 2210, but also with the magnetic field generated by the auxiliary magnet 2211 to achieve the purpose of increasing the vibration intensity of the coil 211 or the main magnet 2210.
  • the magnetic flux passing through the coil 211 includes the magnetic flux generated by the main magnet 2210 passing through the coil 211 and the magnetic flux generated by the auxiliary magnet 2211 passing through the coil 211, so that the magnetic induction intensity of the coil 211 is increased. Larger, the force of the magnetic field between the coil 211 and the main magnet 2210 is greater, so that the vibration intensity of the coil 211 or the vibration intensity of the main magnet 2210 can be increased.
  • the auxiliary magnet 2211 is located in the second magnetic shield 52.
  • the surface of the coil 211 opposite to the auxiliary magnet 2211 is not covered by the second magnetic shield 52.
  • the first magnetic shield 51 and the second magnetic shield 52 are U-shaped.
  • the first magnetic shield 51 and the second magnetic shield 52 are made of magnetically conductive materials to reduce the diffusion of magnetic lines of force in the magnetic field formed by the main magnet 2210 and the coil 211, and achieve the purpose of reducing the magnetic resistance.
  • the mobile terminal 01 shown in FIG. 17 can also implement the above-mentioned screen sounding process, which will not be repeated here.
  • the positions of the main magnet 2210, the coil 211 and the auxiliary magnet 2211 in FIG. 17 may also be interchanged, as shown in FIG. 18, that is, the first magnet 21 is the main magnet 2210, The second magnet 22 is a coil 211.
  • the main magnet 2210 is fixed to the back of the display module 10, and the coil 211 and the auxiliary magnet 2211 pass through the opening in the middle frame 11 and are fixed to the upper surface of the bracket 223.
  • the process for the mobile terminal with this structure to realize screen sound is the same as described above, and will not be repeated here.
  • the auxiliary magnet 2211 is provided on the same side of the coil 211, when the coil 211 is supplied with current (that is, in the working state of the vibrator 201), the magnetic field generated by the coil 211 can be combined with the magnetic field generated by the main magnet 2210. The interaction can also interact with the magnetic field generated by the auxiliary magnet 2211, so that the vibration intensity of the main magnet 2210 can be improved.
  • the main magnet 2210 shown in FIG. 17 or FIG. 18 may be a permanent magnet or an electromagnet that receives a constant current.
  • the auxiliary magnet 2211 may be a permanent magnet or an electromagnet that receives a constant current.
  • the main magnet 2210 and the auxiliary magnet 2211 are both permanent magnets, the main magnet 2210 and the auxiliary magnet 2211 can be set to have the same pole on the opposite side (or the close end), and the far side (or the opposite side) The close end) is naturally the same pole, so there is a mutual repulsive force between the main magnet 2210 and the auxiliary magnet 2211; the main magnet 2210 and the auxiliary magnet 2211 can be set as different poles on the opposite side, and the far side is naturally Different poles, so that the main magnet 2210 and the auxiliary magnet 2211 have a mutual attraction force.
  • FIG. 18 shows a way of setting the magnetic poles of the main magnet 2210 and the auxiliary magnet 2211.
  • the main magnet 2210 and the auxiliary magnet 2211 are arranged oppositely, wherein the main magnet 2210 is set as an N pole at the end close to the auxiliary magnet 2211, and the end far away from the auxiliary magnet 2211 (that is, close to the display module 10) is set as an S pole
  • the auxiliary magnet 2211 is set as an N pole at the end close to the main magnet 2210, and the end far away from the main magnet 2210 (that is, close to the bracket 223) is set as an S pole.
  • FIG. 18 shows a magnetic pole setting method, that is, the opposite ends of the main magnet 2210 and the auxiliary magnet 2211 are both set to N poles, and the ends far away are set to S poles.
  • the other The magnetic poles can be arranged at the opposite ends of the main magnet 2210 and the auxiliary magnet 2211 as S poles, and the opposite ends are all set as N poles.
  • the main magnet 2210 and the auxiliary magnet 2211 will also generate magnetic fields.
  • the main magnet 2210 is wrapped by the first magnetic shield 51.
  • the first magnetic shield 51 is made of a magnetic material, the first magnetic shield 51 will be attracted by the main magnet 2210 in the magnetic field generated by the main magnet 2210. After a period of time, the first magnetic shield 51 will be attracted by the main magnet 2210.
  • a magnetic shield 51 is magnetized by the main magnet 2210 so as to have magnetism.
  • the first magnetic shield 51 is magnetized to an N pole at the end close to the S pole of the main magnet 2210, and the first magnetic shield 51 is far away from the main magnet 2210.
  • One end of the S pole (that is, the edge of the first magnetic shield 51 when the first magnetic shield 51 is U-shaped) is correspondingly magnetized as an S pole.
  • the auxiliary magnet 2211 is wrapped by the second magnetic shield 52.
  • the second magnetic shield 52 is made of a magnetic material, the second magnetic shield 52 will be attracted by the auxiliary magnet 2211 when it is in the magnetic field generated by the auxiliary magnet 2211. After time, the second magnetic shield 52 will be magnetized by the auxiliary magnet 2211 to have magnetism.
  • the second magnetic shield 52 will be magnetized to the N pole at the end close to the S pole of the auxiliary magnet 2211, and the second magnetic shield 52 will be far away
  • One end of the S pole of the auxiliary magnet 2211 that is, the edge of the second magnetic shield 52 when the second magnetic shield 52 is U-shaped
  • the first magnetic shield 51 and the second magnetic shield 52 are magnetized by the main magnet 2210 and the auxiliary magnet 2211 respectively to have magnetism.
  • the opposite ends of the main magnet 2210 and the auxiliary magnet 2211 are both N poles, so the magnetic field generated by the main magnet 2210 and the auxiliary magnet 2211 can generate repulsive force ,
  • the main magnet 2210 and the auxiliary magnet 2211 tend to move away from each other.
  • the opposite end of the main magnet 2210 and the second magnetic shield 52 has different poles, so the magnetic field generated by the main magnet 2210 and the magnetic field generated by the second magnetic shield 52 An attractive force can be generated, and the main magnet 2210 and the second magnetic shield 52 have a tendency to move closer to each other.
  • the main magnet 2210 can be in a balanced state under the combined action of the magnetic field generated by the auxiliary magnet 2211 and the magnetic field generated by the second magnetic shield 52, with almost no force.
  • the auxiliary magnet 2211 can be in a balanced state and is almost free of force; the first magnetic shield 51 generates on the auxiliary magnet 2211 Under the combined effect of the magnetic field and the magnetic field generated by the second magnetic shield 52, it can be in a state of equilibrium and almost no force; the magnetic field generated by the second magnetic shield 52 on the main magnet 2210 and the magnetic field generated by the first magnetic shield 51 Under the combined action, it can be in a state of equilibrium and almost no force.
  • the first magnet 21 for example, the coil 211 shown in FIG. 17 or the main magnet 2210 shown in FIG. 18
  • the magnet 22 (for example, the main magnet 2210 shown in FIG. 17 or the coil 211 shown in FIG. 18) can be in a relatively balanced state, so that the display module 10 can also be balanced and strengthen the first magnet 21 (for example, as shown in FIG. The reliability of the connection between the coil 211 shown in FIG. 18, or the main magnet 2210 shown in FIG.
  • the display module 10 avoids that the opposite ends of the main magnet 2210 and the auxiliary magnet 2211 are set with different poles or the auxiliary magnet 2211 is not set. In this case, there is a mutual attraction force between the first magnet 21 and the second magnet 22, which causes the display module 10 to be pulled by the first magnet 21 and deforms.
  • the display module 10 is recessed and the first magnet 21 and the display module 10 The issue of detachment.
  • auxiliary magnet 2211 there may be a mutual attraction force between the first magnet 21 and the second magnet 22.
  • the main magnet 2210 and the coil When the distance between 211 is very short, the main magnet 2210 may magnetize the coil 211, so that there is an attractive force between the coil 211 and the main magnet 2210.
  • the state in which the first magnet 21 and the second magnet 22 are in relative balance can actually be understood as including the main magnet 2210, the coil 211, the auxiliary magnet 2211, the first magnetic shield 51, the second magnetic shield 52, etc.
  • the system is in a relatively balanced state, or the first vibrator part (which can be regarded as the upper vibrator in FIG. 18) including the main magnet 2210 and the first magnetic shield 51 and the coil 211, the auxiliary magnet 2211 and the second magnetic shield 51
  • the second vibrator part of the cover 52 (which can be regarded as the lower vibrator in FIG.
  • the 18 is in a relatively balanced state, wherein one of the first vibrator part and the second vibrator part is fixed on the back of the display module 10 (that is, the upper vibrator) , The other is fixed on the middle frame (that is, the lower vibrator), and the first vibrator part and the second vibrator part are relatively independent.
  • the above is an example of how the mobile terminal 01 implements screen sound to describe the structure of the mobile terminal 01.
  • the above-mentioned mobile terminal 01 further includes an elastic element 202 connected to the vibrator 201.
  • the elastic element 202 is fixedly installed on the middle frame 11, and the elastic element 202 can be deformed under the action of an external force.
  • the coil 211 in the vibrator 201 is electrically connected to the first signal terminal S1 of the CPU.
  • the first signal terminal S1 of the CPU can be time-sharing to provide the above-mentioned first driving signal and second driving signal to the coil 211 in the vibrator 201.
  • the coil 211 in the vibrator 201 is also electrically connected to the second signal terminal S2 of the CPU (as shown in FIG. 1), and the coil 211 in the vibrator 201 is used to receive the second signal terminal S2.
  • the second driving signal provided by the signal terminal S2.
  • the above-mentioned second driving signal may be a low-frequency signal, for example, a signal with a frequency lower than about 250 Hz.
  • the second driving signal may be a vibration signal that is sent to the coil 211 by a central processing unit (CPU) of the mobile phone and triggered by an incoming call or received information signal.
  • CPU central processing unit
  • the vibrator 201 vibrates with a large amplitude and a low frequency according to the second driving signal.
  • the elastic element 202 Since the elastic element 202 is connected to the vibrator 201, when the vibrator 201 vibrates in the Z direction with a large amplitude and low frequency, the elastic element 202 can be deformed by force, and then follow the vibrator 201 to vibrate along the Z direction.
  • the elastic element 202 Since the elastic element 202 is fixedly installed on the middle frame 11, the elastic element 202 can drive the middle frame 11 during the vibration process, and the mobile terminal 01 composed of the display module 10 and the housing 12 connected to the middle frame 11 , To achieve a large amplitude and low frequency vibration of the whole machine. In this case, the mobile phone can be vibrated when there is an incoming call or message.
  • the above-mentioned elastic element 202 may be a reed 222 as shown in FIG. 20. The reed 222 is easily deformed under the action of external force, and vibrates up and down in the Z direction.
  • the above-mentioned mobile terminal 01 in order to make the reed 222 have a certain rebound space.
  • the above-mentioned mobile terminal 01 further includes a supporting block 224.
  • the reed 222 and the supporting block 224 are located in the opening on the middle frame 11.
  • the reed 222 is located between the second magnet 22 and the bracket 223, and the reed and the second magnet 22 The two magnets are connected.
  • the reed and the second magnet can be directly connected or indirectly connected. The position of the reed 222 will be described below.
  • the reed 222 is directly connected to the lower surface of the main magnet 2210 through an adhesive layer (the black covering layer on the upper surface of the reed 222).
  • the above mobile terminal 01 when the main magnet 2210 is located in the closed area formed by the wire of the coil 211, when the above mobile terminal 01 further includes the main magnet 2210 located When the auxiliary magnets 2211 are on the same side, the above-mentioned main magnet 2210 and auxiliary magnet 2211 may be arranged on the magnetic bowl 226.
  • the reed 222 is connected to the lower surface of the magnetic bowl 226 through an adhesive layer, that is, the reed 222 is connected to the main magnet 2210 through the magnetic bowl 226.
  • the mobile terminal when the mobile terminal further includes the auxiliary magnet 2211 as shown in FIG. 24, the auxiliary magnet 2211 is located on the same side as the coil 211 and is embedded in the closed area formed by the wire of the coil 211. . Therefore, the reed 222 is still connected to the lower surface of the first magnetic shield 51 containing the main magnet 2210 through the adhesive layer.
  • the reed 222 is directly connected to the lower surface of the coil 211 through an adhesive layer.
  • the main magnet 2210 when the main magnet 2210 is disposed opposite to the coil 211, and the main magnet 2210 is located outside the closed area formed by the wire of the coil 211, the above The reed 222 is connected to the lower surface of the second magnetic isolation cover 52 containing the coil 211 through an adhesive layer, that is, the reed 222 is connected to the coil 211 through the second magnetic isolation cover 52.
  • the supporting block 224 is disposed between the reed 222 and the bracket 223, and the upper and lower surfaces of the supporting block 224 are connected to the reed 222 and the bracket 223, respectively.
  • the reed 222, the supporting block 224, the first magnet 21 (for example, the coil 211 in FIG. 27), and the second magnet in the mobile terminal 01 are 22 (for example, the main magnet 2210 in FIG. 27) and the auxiliary magnet 2211 are both located in the accommodating space 20, in order to make the reed 222 have a certain rebound space, the reed 222 may be located between the second magnet 22 and the middle frame 111, and the reed 222 can be connected to the second magnet 22 through an adhesive layer.
  • the supporting block 224 is disposed between the reed 222 and the middle frame 11, and the upper and lower surfaces of the supporting block 224 are connected to the reed 222 and the middle frame 11 respectively.
  • the reed 222 under the support of the supporting block 224, there is a certain gap between the reed 222 and the middle frame 11 when no external force is applied.
  • the gap can be used as the deformation of the reed 222 under the action of external force. Rebound space.
  • the second magnet 22 for example, the main magnet 2210 in FIG. 27
  • the vibration of the reed 222 can be transmitted to the middle frame 11.
  • the reed 222 can drive the middle frame 11 to vibrate, and the middle frame 11 drives the entire mobile terminal 01 to vibrate. Therefore, the reed 222 can be used as a vibration system that drives the entire mobile terminal 01 to vibrate. In this case, the elastic coefficient of the reed 222 can affect the resonance frequency of the above-mentioned vibration system.
  • the elastic coefficient k, the mass m of the reed 222 and the resonance frequency f of the reed 222 satisfy the following formula (1).
  • the resonant frequency of the reed 222 will change, so that the resonance frequency of the above-mentioned vibration system will also change.
  • the frequency of the second drive signal needs to be the same or approximately the same as the resonance frequency of the vibration system.
  • the second driving signal provided by the second signal terminal S2 of the CPU is transmitted to the coil 211 in the vibrator 201 after being processed by the second power amplifier 41.
  • the second power amplifier 41 can amplify the second signal terminal S2 so that the coil 211 can recognize the amplified second driving signal.
  • the coil 211 After the coil 211 receives the second driving signal (that is, the low-frequency signal), the coil 211 generates an alternating magnetic field under the action of the second driving signal.
  • the second driving signal that is, the low-frequency signal
  • the main magnet 2210 will generate a constant magnetic field with the same size and direction.
  • the second driving signal is a low-frequency signal, which has a large difference from the resonance frequency of the sound system. Therefore, under the interaction of the above two magnetic fields, the coil 211 in the sound system will not actuate the display module 10 of the diaphragm to vibrate at a high frequency, so that the display module 10 cannot push the air to make sound.
  • the sound system is in a non-working state.
  • the frequency of the second driving signal is close to the resonance frequency of the reed 222 as the vibration system. Therefore, the interaction between the magnetic field generated on the coil 211 and the magnetic field of the main magnet 2210 can drive the reed 222 to move up and down in the Z direction.
  • the reed 222 drives the middle frame 11 to vibrate through the bracket 223.
  • the display module 10, the housing 12, etc. connected to the middle frame 11 vibrate at a low frequency and with a large amplitude.
  • the vibration system is in working state, and the mobile terminal 01 vibrates.
  • the above-mentioned vibration system can function as a motor, and can realize the vibration reminder of the mobile phone when there is an incoming call or a message.
  • the above-mentioned reed 222 can realize the function of a motor, and there is no need to separately provide a motor in the mobile terminal 01.
  • the reed 222 has a smaller volume, so that more construction space can be saved.
  • the aforementioned architectural space can be equipped with devices with other functions, such as front and rear cameras, fingerprint readers, and so on. To improve the integration of the mobile terminal 01 function.
  • the first driving signal provided by the first signal terminal S1 of the CPU is processed by the filter 30 and the first power amplifier 40, It is transmitted to the coil 211 in the vibrator 201.
  • the second driving signal provided by the second signal terminal S2 of the CPU is transmitted to the coil 211 after passing through the second power amplifier 41.
  • the coil 211 in the vibrator 201 can receive the first drive signal (ie, medium and high frequency signal), and can also receive the second drive signal (ie, low frequency signal).
  • the frequency of the superimposed signal received by the coil 211 is the frequency of the first driving signal (for example, 1000 Hz) and the second driving signal (for example, 1000 Hz). 100HZ) superposition of frequency.
  • the waveform of the superimposed signal is no longer a harmonic waveform.
  • the coil 211 generates an alternating magnetic field under the action of the above-mentioned superimposed signal.
  • the driving coil 211 drives the display module 10 to vibrate with a small amplitude and high frequency along the aforementioned Z direction.
  • the display module 10 acts as a diaphragm to push the air to make sound during the vibration process, so as to achieve the purpose of sound on the screen. At this time, the sound system is in working condition.
  • the coil 211 drives the main magnet 2210 to drive the reed 222 to move up and down along the Z direction under the action of the alternating magnetic field generated by the superimposed signal and the constant magnetic field generated by the main magnet 2210.
  • the reed 222 drives the middle frame 11 to vibrate through the bracket 223.
  • the display module 10, the housing 12, etc. connected to the middle frame 11 vibrate at a low frequency and with a large amplitude.
  • the vibration system is in working state, and the mobile terminal 01 vibrates.
  • the resonance frequency of the sound system composed of the first magnet 21 (such as the coil 211 shown in FIG. 21 or the main magnet 2210 shown in FIG. 25), the display module 10, and the foam glue 111 is much greater than
  • the coil 211 receives the first driving signal of medium and high frequency
  • the above-mentioned first magnet 21 drives the display module 10 to vibrate, so that the sound generation system works and realizes the sound generation on the screen.
  • the second magnet 22 drives the reed 222 and the middle frame 11 connected to the reed 222 to vibrate, so that the vibration system works and realizes the vibration of the whole machine.
  • the configuration of the vibrator 201 and the reed 222 in the mobile terminal 01 provided in the embodiment of the present application may adopt the structure described in any of the foregoing examples.
  • the mobile terminal 01 may include At least two of the above-mentioned vibrators 201.
  • the middle position of the middle frame 11 is provided with a groove 60 for inserting the battery.
  • the above-mentioned two vibrators 201 are respectively located at the upper and lower ends of the groove 60, and are arranged to avoid the clearance area of the antenna.
  • the middle frame 11 may be provided with an opening (not shown in the figure) into which the vibrator 201 is inserted, or the above-mentioned opening may not be provided, and the two vibrators 201 may be directly arranged on the middle frame 11.
  • the first magnet 21 in the vibrator 201 can be arranged on the back of the display module 10, and It is directly opposite to the position of the opening provided on the middle frame 11.
  • a part of the second magnet 22 in the vibrator 201 is located in the above-mentioned opening and fixed on the bracket 223.
  • the bracket 223 is fixed on the second surface B2 of the middle frame 11 by screws.
  • the first magnet 21 in the vibrator 201 for example, the main magnet 2210 shown in FIG. 7 may be set in the display mode. It is located on the group 10 and is directly opposite to the position of the opening provided on the middle frame 11.
  • the second magnet 22 in the vibrator 201 for example, a part of the coil 211 shown in FIG. 7 and the reed 222 are located in the above-mentioned opening and fixed on the bracket 223.
  • the bracket 223 is fixed on the second surface B2 of the middle frame 11 by screws.
  • the main magnet 2210 is arranged on the display module 10, and the coil 211 is arranged on the middle frame 11, which can avoid the problem of reducing the display effect of the display module 10 due to the heating of the coil 211.
  • the electrical connection between the coil 211 and the CPU can be simplified, and the reliability of the electrical connection between the coil 211 and the CPU can be improved.
  • the first magnet 21 in the vibrator 201 for example, the coil 211 as shown in FIG. 6 is arranged on the display module 10 and is directly opposite to the position of the opening provided on the middle frame 11.
  • the second magnet 22 in the vibrator 201 for example, a part of the main magnet 2210 shown in FIG. 6 and the reed 222 are located in the above-mentioned opening and fixed on the bracket 223.
  • the bracket 223 is fixed on the second surface B2 of the middle frame 11 by screws.
  • the mobile terminal 01 includes two vibrators 201.
  • the vibrator 201 can be arranged above the mobile terminal 01, that is, when the user answers a call, the vibrator 201 can be located near the position of the user's ear.
  • the user's ear position has a better screen sound effect and clearer voice signals during the process of the user's answering the mobile phone.
  • the above examples 1 to 5 are all described by taking the main magnet 2210 as a single magnet as an example.
  • the main magnet 2210 in the above examples 1 to 5 may also be a magnet structure formed by a magnet array arrangement, such as a Halbach array.
  • a magnet array arrangement such as a Halbach array.
  • the side close to the coil generates a strong magnetic field.
  • the above-mentioned first magnet 21 is the main magnet 2210, and the second magnet 22 is the coil 211.
  • the main magnet 2210 is located outside the closed area formed by the wire of the coil 211.
  • the opposing surfaces of the main magnet 2210 and the coil 211 are parallel.
  • the structure of the coil 211 may be a ring, such as a toroidal coil or a square toroidal coil. For the specific structure, please refer to Example 3.
  • the Halbach array is a new type of permanent magnet arrangement, which is an approximate ideal structure in engineering.
  • the goal is to generate the strongest magnetic field with the smallest amount of magnets.
  • By arranging the permanent magnets with different magnetization directions in a certain order for example, combining the radial and parallel arrangements of the magnets), if the end effect is ignored, and the permeability of the surrounding magnetic material is regarded as infinite, Then the above-mentioned permanent magnet structure can finally form a unilateral magnetic field, that is, the magnetic field on one side of the array is significantly enhanced, and the other side is significantly weakened.
  • the unilateral magnetic field formed by the Halbach array in the embodiment of the present application should be understood as a strong magnetic field formed by the Halbach array on this side.
  • FIG. 32 the spatial magnetic field distribution of a conventional permanent magnet and a Halbach array is schematically shown, where the arrows in Fig. 32 indicate the direction of the magnetic field inside the magnet (ie, from S pole to N pole).
  • the picture on the left shows the spatial magnetic field distribution of a conventional permanent magnet. It can be seen from the picture that there is the same degree of magnetic field around the conventional permanent magnet.
  • the figure on the right shows the spatial magnetic field distribution of the Halbach array. It can be seen from the figure that the magnetic field strength of the Halbach array formed according to the arrangement in the figure is significantly increased on one side, and the magnetic field strength on the other side is significantly reduced.
  • the spatial magnetic field distribution of the Halbach array shown in FIG. 32 is only a schematic illustration of the unilateral magnetic field generated by the Halbach array, and does not impose any limitation on the embodiment of the present application.
  • the structure of the Halbach array adopted by the main magnet 2210 may be as shown in FIG. 33.
  • the main magnet 2210 includes a first main magnet part 2210a and a second main magnet part 2210b.
  • the first main magnet part 2210a can be circular or elliptical and serves as the central magnet part of the main magnet 2210.
  • the second main magnet part 2210b It can be a circular ring or an elliptical ring as the peripheral magnet part of the main magnet 2210.
  • the first main magnet part 2210a can also take other shapes, such as a triangle, a square, a polygon, or other regular or irregular shapes
  • the second main magnet part 2210b can also take other shapes, such as Hollowed triangles, hollowed squares, hollowed polygons or other regular or irregular shapes, but it should be understood that the shape of the second main magnet part 2210b is adapted to the shape of the first main magnet part 2210a, so that the first main magnet part 2210a and the second main magnet part 2210a The two main magnet parts 2210b are arranged to form a Halbach array.
  • FIG. 31 also shows a way of setting the magnetic poles of the first magnet 21 and the second magnet 22.
  • the main magnet 2210 and the auxiliary magnet 2211 are arranged opposite to each other.
  • the first main magnet part 2210a included in the main magnet 2210 is set as an N pole at the end close to the auxiliary magnet 2211 (that is, close to the middle frame 11), and the end far away from the auxiliary magnet 2211 (that is, close to the display module 10) is set to S
  • the poles, that is, the N pole and the S pole of the first main magnet portion 2210a are arranged along the Z direction (ie, the vertical direction of the paper).
  • the second main magnet part 2210b included in the main magnet 2210 is set as an N pole at the end close to the first main magnet part 2210a, and the end far away from the first main magnet part 2210a (that is, close to the first magnetic shield 51) is set as S
  • the poles, that is, the N pole and the S pole of the second main magnet portion 2210b are arranged along the direction perpendicular to the Z direction on the paper (ie, the left and right direction of the paper), and the N pole and the S pole of the first main magnet portion 2210a
  • the setting direction is vertical.
  • the magnetic field distribution of the Halbach array formed according to the above-mentioned magnetic pole arrangement can refer to the magnetic field formed by the arrangement of the three magnets on the left or the arrangement of the three magnets on the right in the right figure of FIG. 32.
  • the auxiliary magnet 2211 is close to the main magnet 2210 (that is, close to One end of the display module 10) is set to an N pole, and one end away from the main magnet 2210 (ie, close to the middle frame 11) is set to an S pole.
  • the coil 211 when the vibrator 201 is in a non-operating state, the coil 211 is not energized, and the magnetic field generated by the main magnet 2210 and the magnetic field generated by the auxiliary magnet 2211 interact with each other as shown in FIG. 34.
  • the magnetic field generated by the Halbach array of the main magnet 2210 can repel the magnetic field generated by the auxiliary magnet 2211.
  • the first magnetic shield 51 that wraps the main magnet 2210 (including the first main magnet portion 2210a and the second main magnet portion 2210b) will be magnetized by the main magnet 2210 to be magnetic, and wrap the auxiliary magnet 2211.
  • the second magnetic shield 52 is magnetized by the auxiliary magnet 2211 to have magnetism.
  • the first magnet 21 for example, the main magnet 2210 shown in FIG. 31
  • the second magnet 22 for example, the coil 211 shown in FIG. 31
  • the interaction relationship and beneficial effects between the auxiliary magnet 2211 and the main magnet 2210 using the Halbach array are the same as those in the auxiliary example in the fourth example.
  • the interaction relationship and effects between the magnet 2211 and the main magnet 2210 adopting a single magnet are similar, and the specific reference is made to the above description, which will not be repeated here.
  • the vibrator 201 when the vibrator 201 is in the working state, current is passed through the coil 211, and the magnetic field generated by the coil 211, the magnetic field generated by the main magnet 2210, and the magnetic field generated by the auxiliary magnet 2211 interact with each other as shown in Figure 35. Show.
  • the magnetic field generated by the coil 211 can generate repulsive force with the magnetic field generated by the main magnet 2210, and at the same time, the magnetic field generated by the auxiliary magnet 2211 and the magnetic field generated by the main magnet 2210 will also generate repulsive force.
  • the first magnet 21 (for example, the main magnet 2210 shown in FIG. 31) can move in a direction away from the second magnet 22 with respect to the second magnet 22 (for example, the coil 211 shown in FIG. 31).
  • FIG. 36 a schematic diagram of the interaction between the magnetic field generated by the coil 211, the magnetic field generated by the main magnet 2210, and the magnetic field generated by the auxiliary magnet 2211 may be as shown in FIG. 36.
  • the magnetic field generated by the coil 211 can generate an attractive force with the magnetic field generated by the main magnet 2210.
  • the first magnet 21 for example, the main magnet 2210 shown in FIG. 31
  • the second magnet 22 for example, the coil 211 shown in FIG. 31
  • FIGS. 35 and 36 should be understood as the result of the combined effect of the magnetic field generated by the coil 211, the magnetic field generated by the main magnet 2210, and the magnetic field generated by the auxiliary magnet 2211 after the coil 211 is energized.
  • the coil 211 When the vibrator 201 is in the working state, the coil 211 will receive the above-mentioned first driving signal. Under the combined action of the magnetic field generated by the coil 211, the magnetic field generated by the main magnet 2210, and the magnetic field generated by the auxiliary magnet 2211, the coil 211 and the main magnet 2210 can attract or repel each other, so that the first magnet 21 (for example, the main magnet 2210 shown in FIG. 31) has a small amplitude in the Z direction relative to the second magnet 22 (for example, the coil 211 shown in FIG. 31). , And high frequency vibration. Therefore, the display module 10 is driven to vibrate with a small amplitude and a high frequency through the above-mentioned first magnet 21, so as to realize the screen sound.
  • the first magnet 21 for example, the main magnet 2210 shown in FIG. 31
  • the second magnet 22 for example, the coil 211 shown in FIG. 31
  • the display module 10 is driven to vibrate with a small amplitude and a high frequency through the above-
  • the coil 211 when the vibrator 201 is in a non-operating state, the coil 211 is not supplied with current, and there may also be a repulsive force (or suction force) that does not exceed a preset value between the first magnet 21 and the second magnet 22.
  • the coil 211 When the vibrator 201 is in the working state, the coil 211 is supplied with current, and the repulsive force (or attraction) between the first magnet 21 and the second magnet 22 can also always exist, but due to the change in the magnitude and direction of the incoming current, it can be The magnitude of the repulsive force (or attractive force) between the first magnet 21 and the second magnet 22 is changed.
  • the distance between the first magnet 21 and the second magnet 22 is larger, and when the first magnet 21 and the second magnet 22 When the repulsive force between them is small (or the attraction force is large), the distance between the first magnet 21 and the second magnet 22 is small. In this way, as the current changes, the distance between the first magnet 21 and the second magnet 22 also changes, and the first magnet 21 can also vibrate with a small amplitude and high frequency in the Z direction relative to the second magnet 22.
  • the display module 10 is driven by the first magnet 21 to generate small amplitude and high frequency vibrations, which can also achieve screen sound. In this case, the distance between the first magnet 21 and the second magnet 22 becomes smaller (or the distance becomes larger) compared to the previous time. It can also be equivalent to the first magnet 21 relative to the second magnet. 22 attract (or repel) each other.
  • the main magnet 2210 since the main magnet 2210 adopts a Halbach array, the main magnet generates a unilateral magnetic field on the side opposite to the coil, so that the magnetic field strength of the main magnet 2210 on the side close to the coil 211 is significantly increased. The intensity of the magnetic field on the side close to the display module 10 is significantly reduced. In this way, when the coil 211 is energized, when the magnetic field generated by the coil 211 interacts with the magnetic field generated by the main magnet 2210, the magnetic force received by the main magnet 2210 and the coil 211 is significantly increased, which can increase the vibration intensity of the coil 211 or the main magnet 2210. The vibration intensity.
  • the first magnetic shield 51 and the second magnetic shield 52 are made of magnetically conductive materials to reduce the diffusion of magnetic lines of force in the magnetic field formed by the main magnet 2210 and the coil 211, and achieve the purpose of reducing the magnetic resistance. In this way, there is less external leakage of the magnetic field, and the effect of the magnetic field generated by the coil 211 and the magnetic field generated by the main magnet 2210 is further enhanced, thereby further improving the vibration intensity of the coil 211 or the vibration intensity of the main magnet 2210.
  • the main magnet 2210 adopts the Halbach array, the magnetic field strength of one side of the array can be significantly increased, and the same performance as in Example 4 (for example, the vibration intensity of the main magnet 2210 is the same) can be achieved.
  • the thickness of the main magnet 2210 and/or the auxiliary magnet 2211 can be made thinner, or the number of turns of the coil 211 can be less, so that the thickness space of the vibrator 201 can be saved, and the thickness of the mobile terminal can be reduced.
  • the magnetic pole settings of the main magnet 2210 and the auxiliary magnet 2211 in FIG. 31 can also be completely exchanged, that is, in the above-mentioned main magnet 2210, the first main magnet part 2210a and the second main magnet part
  • the end of 2210b set as N pole is changed to S pole
  • the end set as S pole is changed to N pole
  • the end set as N pole of auxiliary magnet 2211 is changed to S pole
  • the end set as S pole is changed to N pole.
  • the main magnet 2210 is still a Halbach array, and its magnetic field strength on the side close to the coil 211 is significantly increased, and the magnetic field strength on the side close to the display module 10 is significantly reduced.
  • the process for the mobile terminal with this structure to realize screen sound is the same as described above, and will not be repeated here.
  • the positions of the main magnet 2210, the coil 211, and the auxiliary magnet 2211 in FIG. 31 can also be interchanged.
  • the magnetic poles of the Halbach array used by the main magnet 2210 do not need to be changed, that is, the above-mentioned first One magnet 21 is a coil 211, and the second magnet 22 is a main magnet 2210.
  • the coil 211 and the auxiliary magnet 2211 are fixed to the back of the display module 10, and the main magnet 2210 passes through the opening on the middle frame 11 and is fixed to the upper surface of the bracket 223.
  • the process for the mobile terminal with this structure to realize screen sound is the same as described above, and will not be repeated here.
  • the positions of the main magnet 2210, the coil 211 and the auxiliary magnet 2211 described in the embodiments of the present application are interchanged, which means that the upper and lower surfaces of the main magnet 2210 are turned over and fixed on the upper surface of the bracket 223, and the coil 211 and the auxiliary magnet The 2211 is fixed on the back of the display module 10 after being turned upside down.
  • the surface of the main magnet 2210 that contacts the upper surface of the bracket 223 after the exchange of positions is the same as the surface that contacts the back of the display module 10 before the exchange of the main magnet 2210, so as to ensure the mutual position.
  • the main magnet 2210 forms a strong magnet on the side close to the auxiliary magnet 2211 and the coil 211.
  • the positions of the main magnet 2210, the coil 211 and the auxiliary magnet 2211 are interchanged, which is equivalent to placing the main magnet 2210 and the coil 211 and the auxiliary magnet 2211 perpendicular to the position of the display module 10 and the middle frame 11 unchanged.
  • the axis of the paper rotates 180 degrees. This understanding is also applicable to other embodiments in which the main magnet 2210 adopts the Halbach array.
  • the positions of the main magnet 2210, the coil 211 and the auxiliary magnet 2211 are interchanged, which is equivalent to the position of the display module 10 and the middle frame 11 unchanged.
  • the main magnet 2210 and the coil 211 and the auxiliary magnet 2211 are rotated 180 degrees along the axis perpendicular to the paper surface, so as to ensure that after the position exchange, the main magnet 2210 and the auxiliary magnet 2211 are still of the same pole and the positions are mutually opposite.
  • the polarity and position of the opposite side of the main magnet 2210 and the auxiliary magnet 2211 are exchanged before the replacement.
  • the polarity of the opposite side of the main magnet 2210 and the auxiliary magnet 2211 is the same, for example, both are N poles.
  • the side of the main magnet 2210 close to the coil 211 produces strong magnetism, and the side close to the display module 10 produces weak magnetism.
  • the magnetic poles of the first main magnet part 2210a included in the main magnet 2210 can be exchanged and the magnetic poles of the second main magnet part 2210b remain unchanged, or the magnetic poles of the second main magnet part 2210b can be exchanged and The magnetic pole of the first main magnet part 2210a does not change.
  • the direction of the unilateral magnetic field generated by the formed Halbach array is reversed, that is, the side that originally produced the strong magnetism now produces the weak magnetic field, and the side that originally produced the weak magnetic field. At this time, strong magnetism is generated.
  • Such a Halbach array can be arranged on the middle frame 11 as the second magnet, so as to ensure that the second magnet generates strong magnetism on the side close to the coil.
  • the main magnet 2210 adopting the Halbach array includes two permanent magnets with different magnetization directions (ie, the first main magnet part 2210a and the second main magnet part 2210b) as an example.
  • the main magnet 2210 using the Halbach array may also include other permanent magnets, such as 3, 4 or more permanent magnets with different magnetization directions.
  • the main magnet 2210 includes a first main magnet portion 2210a, a second main magnet portion 2210b, and a third main magnet portion 2210c.
  • the first main magnet portion 2210a can be circular or elliptical, and serves as the central magnet portion of the main magnet 2210.
  • the second main magnet part 2210b and the third main magnet part 2210c may be circular or elliptical rings, which serve as the peripheral magnet parts of the main magnet 2210.
  • first main magnet portion 2210a, the second main magnet portion 2210b, and the third main magnet portion 2210c can also adopt other shapes, such as triangles, squares, polygons, or other regular or irregular shapes.
  • the shape of the main magnet portion 2210b is adapted to the shape of the first main magnet portion 2210a
  • the shape of the third main magnet portion 2210c is adapted to the shape of the second main magnet portion 2210b, so that the first main magnet portion 2210a and the second main magnet
  • the portion 2210b and the third main magnet portion 2210c are arranged to form a Halbach array.
  • FIG. 37 also shows a way of setting the magnetic poles of the first magnet 21 and the second magnet 22.
  • the main magnet 2210 and the auxiliary magnet 2211 are arranged opposite to each other.
  • the magnetic pole arrangement of the first main magnet portion 2210a and the second main magnet portion 2210b included in the main magnet 2210 is the same as the magnetic pole arrangement of the first main magnet portion 2210a and the second main magnet portion 2210b in FIG. 31.
  • the third main magnet part 2210c included in the main magnet 2210 is set as an S pole at one end close to the auxiliary magnet 2211, and an end far away from the auxiliary magnet 2211 (ie, close to the display module 10) is set as an N pole, that is, the third main magnet part
  • the N pole and S pole of 2210c are arranged along the Z direction (that is, the vertical direction of the paper).
  • the auxiliary magnet 2211 is set at the end close to the main magnet 2210.
  • the N pole, and the end far away from the main magnet 2210 (that is, close to the middle frame 11) is set as the S pole.
  • the main magnet 2210 adopts the Halbach array as shown in FIG. 37 and the effect that can be achieved by adopting the Halbach array as shown in FIG. 31 is similar.
  • the process of implementing screen sound on a mobile terminal with this structure is also The same as the above, so I won't repeat it here.
  • the magnetic pole settings of the main magnet 2210 and the auxiliary magnet 2211 in FIG. 37 can also be completely exchanged (that is, the N poles are all changed to S poles, and the S poles are all changed to N poles), so ,
  • the main magnet 2210 formed on the side close to the coil 211 is still a strong magnet.
  • the positions of the main magnet 2210, the coil 211, and the auxiliary magnet 2211 in FIG. 37 can also be interchanged.
  • the implementation method is the same as that described above. For details, please refer to the relevant description above. Go into details again.
  • the Halbach array in the embodiment of the present application can adopt different arrangements, such as linear arrays, circular arrays, and arrays formed by other arrangements.
  • the embodiments are not particularly limited.
  • the magnetic field generated by the Halbach array is a unilateral magnetic field.
  • the intensity of the magnetic field on one side of the array is significantly increased, and the intensity of the magnetic field on the other side of the array is significantly reduced.
  • the main magnet 2210 adopts the Halbach array
  • a strong magnetism is generated between the main magnet 2210 and the coil 211.
  • the main magnet 2210 is located on the side close to the display module 10.
  • the magnetic field strength is very weak.
  • the magnetic field generated by the main magnet 2210 has very low interference with peripheral devices. Therefore, the first magnetic shield 51 with a thinner thickness can be used to achieve the same or even better than the first magnetic shield 51 in Example 6
  • the magnetic permeability effect of the first magnetic shield 51 in Example 6, or the first magnetic shield 51 can be omitted directly.
  • the above-mentioned first magnet 21 is the main magnet 2210, and the second magnet 22 is the coil 211.
  • the main magnet 2210 is located outside the closed area formed by the wire of the coil 211.
  • the opposing surfaces of the main magnet 2210 and the coil 211 are parallel.
  • the structure of the coil 211 may be a ring, such as a toroidal coil or a square toroidal coil. For the specific structure, please refer to Example 3.
  • Example 6 The difference from Example 6 is that the mobile terminal does not include the first magnetic shield 51 that isolates the magnetic field generated by the main magnet 2210, but still retains the second shield 51 that isolates the magnetic field generated by the coil 211. ⁇ 52 ⁇ Magnetic shield 52.
  • the main magnet 2210 can be directly fixed to the lower surface of the support sheet 212 by means of adhesive layer bonding, and the upper surface of the support sheet 212 is fixedly mounted on the display mold.
  • the group 10 is on a side surface close to the middle frame 11 to realize that the above-mentioned first magnet 21 is connected to the display module 10 through the supporting sheet 212.
  • the main magnet 2210 adopts the Halbach array, it can not only enhance the interaction between the magnetic field generated by the main magnet 2210 and the magnetic field generated by the coil 211, thereby increasing the vibration intensity of the main magnet 2210, but also because the first magnetic shield is omitted. 51.
  • the thickness space of the vibrator 201 can also be saved, which is beneficial to the thickness reduction of the mobile terminal.
  • the space for arranging the first magnetic shield 51 can be omitted, and a larger magnet space can be obtained, for example, increasing the size of the main magnet 2210 and/or the auxiliary magnet 2211, or increasing the number of turns of the coil 211, thereby further The interaction between the magnetic field generated by the main magnet 2210 and the magnetic field generated by the coil 211 is enhanced, thereby increasing the vibration intensity of the main magnet 2210.
  • the supporting sheet 212 can be omitted, and the main magnet 2210 can be directly fixed to the display module 10 by means of adhesive layer bonding, so that the first magnet 21 and the display module 10 are connected.
  • the positions of the main magnet 2210, the coil 211, the auxiliary magnet 2211, and the second magnetic shield 52 in FIG. 38 can also be interchanged, that is, the first magnet 21 is the coil 211, The second magnet 22 is the main magnet 2210.
  • the second magnetic shield 52, the coil 211 and the auxiliary magnet 2211 are fixed on the back of the display module 10. Since the first magnetic shield 51 is omitted, the main magnet 2210 passes through the opening on the middle frame 11. , Can be directly fixed to the upper surface of the bracket 223 through an adhesive layer. The process for the mobile terminal with this structure to realize screen sound is the same as described above, and will not be repeated here.
  • the above-mentioned first magnet 21 is a main magnet 2210, and the second magnet 22 is a coil 211.
  • the main magnet 2210 is located outside the closed area formed by the wire of the coil 211.
  • the opposing surfaces of the main magnet 2210 and the coil 211 are parallel.
  • the structure of the coil 211 may be a ring, such as a toroidal coil or a square toroidal coil. For the specific structure, please refer to Example 3.
  • the vibrator 201 further includes a magnetic conductive sheet 2212 on the auxiliary magnet 2211.
  • the magnetic conductive sheet 2212 is disposed on the auxiliary magnet 2211 and is in contact with the auxiliary magnet 2211.
  • the magnetic conductive sheet 2212 is installed on the auxiliary magnet 2211 close to the first magnet 21 (the main magnet shown in FIG. 39 2210) (ie, away from the surface of the middle frame 11).
  • the magnetic conductive sheet 2212 can be directly fixed to the auxiliary magnet 2211 by means of adhesive layer bonding.
  • the shape of the magnetic conductive sheet 2212 may be a circle, a square, a triangle, a polygon, and other regular or irregular figures. In some embodiments, the shape of the magnetic conductive sheet 2212 may be the same as the cross-sectional pattern of the auxiliary magnet 2211.
  • the magnetic conductive sheet 2212 may be sheet-shaped, block-shaped, or cover-shaped, which is not particularly limited in the embodiment of the present application.
  • the role of the magnetic conductive sheet 2212 is mainly to conduct magnetism, so that the magnetic force is more concentrated, thereby increasing the magnetic flux passing through the coil 211, increasing the magnetic induction intensity of the coil 211, thereby increasing the force between the coil 211 and the main magnet 2210, and increasing the main magnet.
  • the vibration intensity of the magnet 2210. Specifically, referring to FIGS. 35 and 36, after the current is applied to the coil 211, the magnetic flux that passes through the coil 211 laterally includes the magnetic flux generated by the main magnet 2210, the magnetic flux generated by the auxiliary magnet 2211, and the magnetic flux generated by the first magnetic shield 51 after being magnetized.
  • the magnetic flux, as well as the magnetic flux generated after the second magnetic shield 52 is magnetized, is provided with a magnetic conductive sheet 2212 on the auxiliary magnet 2211, so that the main magnet 2210, the auxiliary magnet 2211, the first magnetic shield 51 and the second magnetic shield
  • the line of magnetic induction of 52 is more smooth, thereby increasing the magnetic flux passing through the coil 211 in the lateral direction.
  • the magnetic flux passing through the coil 211 in the lateral direction increases, the magnetic induction intensity of the coil 211 increases, and the force between the coil 211 and the main magnet 2210 increases, which can increase the vibration intensity of the main magnet 2210. In this way, a greater driving force is generated to drive the display module 10 to vibrate, so that the screen sound can be realized, and the sound level of the screen sound can be increased.
  • the magnetic conductive sheet 2212 may be arranged on the surface of the auxiliary magnet 2211 away from the middle frame (ie, close to the display module 10), or may be arranged on the surface of the main magnet 2210 away from the display module 10 .
  • the first magnetic shield 51 in FIG. 39 can also be removed.
  • the magnetic flux passing through the coil 211 laterally includes the magnetic flux generated by the main magnet 2210 and the magnetic flux generated by the auxiliary magnet 2211. And the magnetic flux generated after the second magnetic shield 52 is magnetized.
  • the positions of the main magnet 2210, the coil 211, and the auxiliary magnet 2211 in FIG. 39 can also be interchanged, that is, the first magnet 21 is the coil 211, and the second magnet 22 is the main magnet. 2210.
  • the coil 211 and the auxiliary magnet 2211 are fixed on the back of the display module 10, and the main magnet 2210 passes through the opening on the middle frame 11 and can be directly fixed to the upper surface of the bracket 223 through an adhesive layer.
  • the magnetic conductive sheet 2212 is provided on a side surface of the main magnet 2210 away from the middle frame 11, or on a side surface of the auxiliary magnet 2211 away from the display module 10.
  • the main magnet 2210 adopts the Halbach array as an example.
  • the auxiliary magnet 2211 may also adopt the Halbach array.
  • the auxiliary magnet 2211 adopts the Halbach array its implementation is similar to that of the main magnet 2210 adopting the Halbach array.
  • the magnetic field on the side close to the main magnet 2210 is significantly increased, and the magnetic field on the side close to the middle frame 11 is significantly weakened. Refer to the above description, which will not be repeated here.
  • the auxiliary magnet 2211 further adopts the Halbach array, the interaction of the magnetic field between the first magnet 21 and the second magnet 22 can be further increased, thereby increasing the vibration intensity of the main magnet 2210 or the vibration intensity of the coil 221.
  • the above-mentioned first magnet 21 is a coil 211
  • the second magnet 22 is a main magnet 2210.
  • a part of the main magnet 2210 is embedded in the closed area formed by the wire of the coil 211.
  • the structure of the coil 211 may be ring-shaped, such as a toroidal coil or a square-loop coil. For the specific structure, refer to Example 3.
  • the main magnet 2210 adopts a Halbach array.
  • the vibrator 201 further includes a magnetic bowl 226.
  • the upper surface of the magnetic bowl 226 and the lower surface of the main magnet 2210 are fixedly connected by an adhesive layer.
  • the lower surface of the magnetic bowl 226 passes through the opening in the middle frame 11 and is fixed to the upper surface of the bracket 223 through the adhesive layer.
  • the material constituting the magnetic bowl 226 may be stainless steel.
  • the above-mentioned magnetic bowl 226 may have a magnetic isolation effect, so as to reduce the probability that the magnetic field generated by the main magnet 2210 and the coil 211 will adversely affect other devices in the mobile terminal 01. Since the main magnet 2210 adopts the Halbach array in this example, the magnetic field strength on the side close to the bracket 223 is very weak. Therefore, compared to when the main magnet 2210 adopts a single magnet, the thickness of the magnetic bowl 226 can be reduced, and the isolation coil 211 generates Magnetic field is fine.
  • the main magnet 2210 includes a first main magnet portion 2210a and a second main magnet portion 2210b.
  • the first main magnet portion 2210a is set as an N pole at one end close to the display module 10, and set at an end far away from the display module 10 (ie, close to the bracket 223) as an S pole.
  • the second main magnet portion 2210b is set as an N pole at an end close to the first main magnet portion 2210a, and an end far away from the first main magnet portion 2210a (ie, close to the coil 211) is set as an S pole.
  • the arrangement of the main magnet 2210 in the embodiment of the present application is equivalent to turning the Halbach array shown in Fig. 31 in Example 6 upside down and arranged on the upper surface of the magnetic bowl 226, except that the arrangement shown in Fig. 31
  • the magnetic field formed by the Halbach array is significantly increased on the side close to the display module 10, and significantly weakened on the side close to the bracket 223.
  • the coil 211 When the coil 211 receives the first driving signal (ie, medium and high-frequency signal), the coil 211 generates an alternating magnetic field under the action of the first driving signal. The magnitude and direction of the magnetic field generated by the coil 211 changes with the change of the first driving signal.
  • the main magnet 2210 adopts a Halbach array, which generates a constant magnetic field with the same size and direction. Therefore, under the interaction of the above two magnetic fields, the coil 211 can be made to cut the small amplitude and high frequency vibration on the magnetic induction line and down along the above Z direction, thereby driving the display module 10 up and down in the same direction. Vibrate with small amplitude and high frequency, and the display module 10 acts as a diaphragm to push the air to generate sound.
  • the main magnet 2210 adopts the Halbach array, which can significantly increase the magnetic field strength of the main magnet 2210 on the side close to the coil 211. In this way, when the coil 211 is energized, the magnetic field generated by the coil 211 and the main magnet When the magnetic field generated by 2210 interacts, the magnetic force received by the main magnet 2210 and the coil 211 is significantly increased, so that the vibration intensity of the coil 211 can be increased.
  • the thickness of the main magnet 2210 can be made thinner, or the number of turns of the coil 211 can be less, or the magnetic bowl The thickness of 226 can be reduced, so that the thickness space of the vibrator 201 can be saved, which is beneficial to the thickness reduction of the mobile terminal.
  • a magnetic conductive sheet 2212 as shown in Example 8 may also be provided on the main magnet 2210, and the magnetic conductive sheet 2212 is located on the main magnet 2210 away from the middle frame 11 ( That is, away from the side surface of the bracket 223).
  • the function of the magnetic conductive sheet 2212 is the same as that described above, which can increase the force between the coil 211 and the main magnet 2210, and achieve the purpose of increasing the vibration intensity of the coil 211.
  • the magnetic pole setting of the main magnet 2210 in FIG. 40 can also be completely exchanged.
  • the main magnet 2210 is still a Halbach array, and its magnetic field strength on the side close to the coil 211 is significantly increased, and the magnetic field strength on the side close to the display module 10 is significantly reduced.
  • the process for the mobile terminal with this structure to realize screen sound is the same as described above, and will not be repeated here.
  • the positions of the main magnet 2210 and the coil 211 in FIG. 40 can also be interchanged, that is, the first magnet 21 is the main magnet 2210, and the second magnet 22 is the coil 211.
  • the main magnet 2210 is fixed to the back of the display module 10, and the coil 211 passes through the opening on the middle frame 11 and is fixed to the upper surface of the bracket 223.
  • the main magnet 2210 adopts a Halbach array to generate strong magnetism on the side close to the middle frame 11, which can increase the vibration intensity of the main magnet 2210.
  • the magnetic conductive sheet 2212 is located on the side surface of the main magnet 2212 away from the display module 10. The process for the mobile terminal with this structure to realize screen sound is the same as described above, and will not be repeated here.
  • the above-mentioned first magnet 21 is a coil 211
  • the second magnet 22 is a main magnet 2210.
  • a part of the main magnet 2210 is embedded in the closed area formed by the wire of the coil 211.
  • the structure of the coil 211 may be a ring structure, such as a circular ring coil or a square ring coil.
  • the main magnet 2210 can be connected to the middle frame 11 through the bracket 223, and the specific implementation manner can refer to the related description of the above examples, which will not be repeated here.
  • the shape of the magnetic bowl 226 in Example 10 may be as shown in FIG. 40.
  • the edge of the magnetic bowl 226 extends in parallel with the bottom surface of the magnetic bowl 226, and the height of the magnetic bowl 226 is relatively small.
  • the shape of the magnetic bowl 226 is shown in Figure 41, the edge of the magnetic bowl 226 extends perpendicular to the bottom surface of the magnetic bowl 226, the height of the magnetic bowl 226 is relatively large, and the bottom wall and the edge can form a partition. Magnetic space.
  • the magnetic bowl 226 may enclose the part of the coil 221 and the main magnet 2210 in the magnetic isolation space.
  • the part of the coil 211 surrounded by the edge of the magnetic bowl 226 is embedded in the gap between the edge of the magnetic bowl 226 and the main magnet 2210.
  • the mobile terminal includes a dome 213 and a diaphragm folding ring 70.
  • the dome 213 is fixed on the side surface of the display module 10 close to the middle frame 11.
  • the upper surface of the dome 213 is connected with the display module 10, and the lower surface is connected with the coil 211.
  • the dome 213 is fixed on the display module 10 for driving the display module 10 to vibrate and produce sound.
  • the diaphragm fold ring 70 is used to ensure that the top of the ball 213 moves in the Z direction and is restricted to move in the vertical Z direction.
  • the coil 211 When the coil 211 receives the first driving signal (ie, medium and high-frequency signal), the coil 211 generates an alternating magnetic field under the action of the first driving signal. The magnitude and direction of the magnetic field generated by the coil 211 changes with the change of the first driving signal.
  • the main magnet 2210 adopts a Halbach array, which generates a constant magnetic field with the same size and direction. Therefore, under the interaction of the above two magnetic fields, the coil 211 can be made to cut the small amplitude and high frequency vibration on and off the magnetic induction line along the above Z direction.
  • the dome 213 is connected to the coil 211, so the coil 211 will drive the dome to vibrate up and down with a small amplitude and high frequency along Z.
  • the diaphragm fold ring 70 will also restrict the dome 213 from moving in the vertical Z direction. Furthermore, the dome 213 can drive the display module 10 to vibrate up and down in the same direction with a small amplitude and high frequency.
  • the display module 10 acts as a diaphragm to push air to produce sound.
  • the main magnet 2210 adopts the Halbach array, which can significantly increase the magnetic field strength of the main magnet 2210 on the side close to the coil 211.
  • the main magnet 2210 can all adopt the Halbach array described in Example 6 to Example 10, and its specific implementation And the process of implementing screen sound on the mobile terminal with the Halbach array is as described above, and will not be repeated here.
  • the vibrator 201 provided by the embodiment of the present application includes a first magnet 21 and a second magnet 22.
  • the first magnet 21 is arranged on the back of the display module 10
  • the second magnet 22 is arranged on the middle frame 11, and the first magnet 21 and The position of the second magnet 22 is relatively arranged.
  • Such a structure makes it easier to stack the vibrator 201 when applied to a mobile terminal, which can solve the problem that screen sound can be realized even when the mobile terminal has insufficient board layout space.
  • the Halbach array can enhance the unilateral magnetic field while weakening the magnetic field on the other side.
  • the magnets in the Halbach array can be restricted. The relationship between the combination, the size of the magnet and its combination should be designed accordingly.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be a connection between two components.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be a connection between two components.

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Abstract

本申请提供了一种移动终端，包括中框，以及设置于中框两侧的壳体和显示模组；显示模组与中框连接，且显示模组与中框之间形成一容纳空间；移动终端还包括第一磁体和第二磁体，第一磁体和第二磁体的至少一部分设置于容纳空间中；第一磁体设置于显示模组的背面，第二磁体设置于中框上，且第一磁体与第二磁体的位置相对设置；其中，第一磁体为线圈，第二磁体为主磁铁；或者，第一磁体为主磁铁，第二磁体为线圈；主磁铁为海尔贝克阵列，主磁铁在与线圈相对的一侧产生单边磁场。上述技术方案能够使得移动终端采用屏幕发声时，通过屏幕振动产生较大的声音，从而提升屏幕发声效果。

Description

移动终端
本申请要求于2019年09月06日提交中国专利局、申请号为201910839727.1、申请名称为“一种磁悬振子以及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请要求于2019年09月18日提交中国专利局、申请号为201910883105.9、申请名称为“移动终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及终端技术领域，具体地，涉及一种移动终端。
背景技术
随着移动终端技术的发展，为了获得更大的屏占比，越来越多的移动终端取消了设置于屏幕正面的出音孔，而采用屏幕发声技术传递声音。
屏幕发声技术的原理是通过移动终端内部的振动发声模组驱动屏幕，以屏幕作为振动体，借由屏幕振动产生声波传送到人耳，这样移动终端可以取消听筒的设计。
现有的屏幕发声方案普遍存在着振动发声模组推力不足的问题，导致屏幕发声声音小，屏幕发声效果不好。
发明内容
本申请提供一种移动终端，能够使得移动终端采用屏幕发声时，通过屏幕振动产生较大的声音，从而提升屏幕发声效果。
第一方面，提供了一种移动终端，包括中框，以及设置于所述中框两侧的壳体和显示模组；所述显示模组与所述中框连接，且所述显示模组与所述中框之间形成一容纳空间；所述移动终端还包括第一磁体和第二磁体，所述第一磁体和所述第二磁体的至少一部分设置于所述容纳空间中；所述第一磁体设置于所述显示模组的背面，所述第二磁体设置于所述中框上，且所述第一磁体与所述第二磁体的位置相对设置；其中，所述第一磁体为线圈，所述第二磁体为主磁铁；或者，所述第一磁体为主磁铁，所述第二磁体为线圈；所述主磁铁为海尔贝克阵列，所述主磁铁在与所述线圈相对的一侧产生单边磁场。
应理解本申请实施例中所述的线圈为能够产生磁场的线圈，例如将线圈通入电流后线圈能够产生磁场，该线圈可以作为磁体。
本申请实施例中，第一磁体产生的磁场和第二磁体产生的磁场之间存在相互作用力，在第一磁体产生的磁场和第二磁体产生的磁场的作用下，第一磁体可以沿垂直于显示模组出光面的方向振动，由于第一磁体设置于显示模组的背面，因此第一磁体会驱动显示模组相对于中框发生小幅度，且高频率的上、下运动。在第一磁体的驱动下，显示模组作为振膜，在振动过程中推动空气产生声音，以实现屏幕发声，从而可以实现听筒或喇叭的功能。 由于驱动显示模组振动的动力来源于第一磁体产生的磁场和第二磁体产生的磁场之间的作用力，该作用力容易使显示模组产生较大的振动幅度，从而发出较大的声音，提升屏幕发声效果。
线圈可以接收第一驱动信号，并根据第一驱动信号产生大小方向可变的磁场，线圈产生的磁场与主磁铁产生的磁场相互作用，实现屏幕发声。具体地，当第一磁体为线圈时，在实现屏幕发声的过程中，线圈驱动显示模组作为振膜，在振动过程中推动空气产生声音。或者，当第一磁体为主磁铁时，在实现屏幕发声的过程中，主磁铁驱动显示模组作为振膜，在振动过程中推动空气产生声音。
海尔贝克阵列可以产生单边磁场，由于主磁铁采用海尔贝克阵列，因而可以实现主磁铁在靠近线圈的一侧的磁场强度显著提升，而另一侧的磁场强度显著减弱。这样一来，当线圈通电以后，线圈产生的磁场与主磁铁产生的磁场相互作用时，主磁铁和线圈受到的磁力显著增强，从而可以提高线圈的振动强度或主磁铁的振动强度，从而提高显示模组的振动强度，增大屏幕发声，提升屏幕发声效果。
另一方面，由于主磁铁采用海尔贝克阵列，可以使阵列一侧磁场强度显著提升，在达到相同性能(例如主磁铁的振动强度相同)的条件下，主磁铁2210的厚度可以做的更薄，或者线圈的匝数可以更少，从而可以节约主磁铁和线圈安装的厚度空间，有利于移动终端的厚度减薄。
另外，上述移动终端中无需设置出音孔，从而能够解决由于出音孔堵塞影响音质的问题。此外，减少了移动终端中的开孔工艺，使得移动终端的显示侧表面更加的平整、圆润。
结合第一方面，在一种可能的实现方式中，所述主磁铁的一部分嵌入所述线圈的导线绕成的闭合区域中。
在此情况下，在实现屏幕发声的过程中，当线圈接收到第一驱动信号后，当第一磁体为线圈时，线圈产生的磁场与主磁铁产生的磁场相互作用，使得线圈带动显示模组切割磁感线上、下小幅度且高频率的振动。或者，当第一磁体为主磁铁时，主磁铁受到线圈的反作用力，线圈带动显示模组进行高频振动。
结合第一方面，在一种可能的实现方式中，所述移动终端还包括至少一个辅磁铁；所述辅磁铁与所述主磁铁位于同一侧，且所述辅磁铁与所述主磁铁之间具有间隙；所述线圈的一部分位于所述辅磁铁和所述主磁铁之间的间隙内。
应理解，本申请实施例中，辅磁铁与主磁铁位于同一侧可以理解为辅磁铁和主磁铁位于同一个部件上。该部件可以为显示模组、中框、磁碗、隔磁罩、支架等。例如当第一磁体为主磁铁时，辅磁铁也设置于显示模组的背面；当第二磁体为主磁铁时，辅磁铁也设置于中框上。
这样一来，线圈产生的磁场不仅可以与主磁铁产生的磁场相互作用，还可以与至少一个辅磁铁产生的磁场相互作用，达到提高线圈振动强度或主磁铁振动强度的目的。
结合第一方面，在一种可能的实现方式中，所述移动终端还包括华司；在所述第一磁体为主磁铁的情况下，所述华司位于所述主磁铁远离所述显示模组的一侧表面；或者，在所述第二磁体为主磁铁的情况下，所述华司位于所述主磁铁远离所述中框的一侧表面。
华司采用低碳钢构成，一方面，其具有导磁作用，以达到降低主磁铁磁阻的目的。另一方面，该华司具有隔磁的作用。
结合第一方面，在一种可能的实现方式中，所述移动终端还包括用于承载所述主磁铁的磁碗；在所述第二磁体为主磁铁的情况下，所述磁碗位于所述主磁铁远离所述显示模组的一侧表面。
在此情况下，上述磁碗可以具有隔磁的作用，以减小主磁铁产生的磁场对移动终端中的其他器件产生不良影响的几率。
结合第一方面，在一种可能的实现方式中，所述主磁铁位于所述线圈的导线绕成的闭合区域以外；所述主磁铁和所述线圈相对的表面平行。
在此情况下，在实现屏幕发声的过程中，当线圈接收到第一驱动信号时，在线圈产生的磁场和主磁铁产生的磁场的相互作用下，使得线圈和主磁铁之间能够相吸或相斥，从而使得第一磁体(线圈或主磁铁)相对于第二磁体(主磁铁或线圈)发生小幅度，且高频率的振动。从而通过上述第一磁体带动显示模组发生小幅度，且高频率的振动，以实现屏幕发声。
结合第一方面，在一种可能的实现方式中，所述移动终端还包括一个辅磁铁；所述辅磁铁与所述线圈位于同一侧，且所述辅磁铁嵌入所述线圈的导线绕成的闭合区域中。
应理解，本申请实施例中，辅磁铁与线圈位于同一侧可以理解为辅磁铁和线圈位于同一个部件上。该部件可以为显示模组、中框、磁碗、隔磁罩、支架等。例如当第一磁体为线圈时，辅磁铁也设置于显示模组的背面；当第二磁体为线圈时，辅磁铁也设置于中框上。
这样一来，线圈产生的磁场不仅可以与主磁铁产生的磁场相互作用，还可以与至少一个辅磁铁产生的磁场相互作用，达到提高线圈振动强度或主磁铁振动强度的目的。
结合第一方面，在一种可能的实现方式中，所述辅磁铁与所述主磁铁在相对的一侧的磁铁极性为同极。
可选地，其中主磁铁在靠近辅磁铁的一端设置为N极，远离辅磁铁的一端设置为S极，相应地，辅磁铁在靠近主磁铁的一端设置为N极，远离主磁铁的一端设置为S极。或者，其中主磁铁在靠近辅磁铁的一端设置为S极，远离辅磁铁的一端设置为N极，相应地，辅磁铁在靠近主磁铁的一端设置为S极，远离主磁铁的一端设置为N极。
主磁铁产生的磁场和辅磁铁产生的磁场相互作用，且主磁铁和辅磁铁相对的一端设置为同极，使得线圈在未通电时，主磁铁和辅磁铁之间保持斥力，增强第一磁体与显示模组的连接的可靠性，避免了在主磁铁和辅磁铁相对的一端设置为异极或者不设置辅磁铁的情况下，第一磁体和第二磁体之间存在相互吸引的力导致显示模组被第一磁体牵引而发生变形以及第一磁体与显示模组脱离的问题。
结合第一方面，在一种可能的实现方式中，所述移动终端还包括导磁片；在所述第一磁体为主磁铁的情况下，所述导磁片位于所述主磁铁远离所述显示模组的一侧表面，或者位于所述辅磁铁远离所述中框的一侧表面；或者，在所述第二磁体为主磁铁的情况下，所述导磁片位于所述主磁铁远离所述中框的一侧表面，或者位于所述辅磁铁远离所述显示模组的一侧表面。
导磁片的作用主要是导磁，使磁力更集中，导磁片的设置可以增加通过线圈的磁通量，从而增大线圈与主磁铁之间的作用力，提高主磁铁的振动强度或线圈振动强度。
结合第一方面，在一种可能的实现方式中，所述移动终端还包括第二隔磁罩；所述线圈位于所述第二隔磁罩内，且所述线圈中，至少除了与所述主磁铁相对设置的一侧表面以 外，其余表面被所述第二隔磁罩包裹。
上述第二隔磁罩可以减小线圈产生的磁场对移动终端中的其他器件产生不良影响的几率。
结合第一方面，在一种可能的实现方式中，所述移动终端不包括设置在主磁铁周围的第一隔磁罩。
海尔贝克阵列产生的磁场为单边磁场，阵列一侧的磁场强度明显增强，阵列另一侧的磁场强度明显减弱，在这种情况下，主磁铁产生的磁场对周边器件的干扰很低，在主磁铁侧不用再设置隔磁罩，可以节约主磁铁安装所需的厚度空间，有利于移动终端的厚度减薄。
另一方面，由于节省隔磁罩而节约的空间还可以换取更大的磁铁空间，例如增大主磁铁和/或辅磁铁的尺寸，或者增大线圈的匝数，从而进一步增强主磁铁产生的磁场与线圈产生的磁场的相互作用，从而增大主磁铁的振动强度。
结合第一方面，在一种可能的实现方式中，所述移动终端还包括第一隔磁罩；所述主磁铁位于所述第一隔磁罩内，且所述主磁铁中，除了与所述线圈相对设置的一侧表面以外，其余表面被所述第一隔磁罩包裹。
上述第一隔磁罩可以减小主磁铁产生的磁场对移动终端中的其他器件产生不良影响的几率。
另外，当第一隔磁罩、第二隔磁罩、与线圈位于同侧的辅磁铁共同均设置时，辅磁铁与所述主磁铁在相对的一侧的磁铁极性为同极。这样，当线圈未通电时，第一隔磁罩和第二隔磁罩分别被主磁铁和辅磁铁磁化而具有磁性。针对主磁铁来说，主磁铁在辅磁铁产生的磁场和第二隔磁罩产生的磁场的综合作用下，可以处于平衡状态，几乎不受力。类似地，辅磁铁、第一隔磁罩、第二隔磁罩在磁场的综合作用下，可以处于平衡状态，几乎不受力。这样可以使得显示模组也保持平衡，增强第一磁体与显示模组的连接的可靠性，避免了在主磁铁和辅磁铁相对的一端设置为异极或者不设置辅磁铁的情况下，第一磁体和第二磁体之间存在相互吸引的力导致显示模组被第一磁体牵引而发生变形例如显示模组下凹以及第一磁体与显示模组脱离的问题。
结合第一方面，在一种可能的实现方式中，在所述移动终端包括辅磁铁的情况下，所述辅磁铁位于所述第二隔磁罩内，且所述线圈与所述辅磁铁相对的表面未被所述第二隔磁罩覆盖。
上述第二隔磁罩还能够减小辅磁铁的磁场对移动终端中的其他器件产生不良影响的几率。
结合第一方面，在一种可能的实现方式中，所述主磁铁包括第一主磁铁部分和第二主磁铁部分，所述第二主磁铁部分呈环形，嵌套于所述第一主磁铁部分上；所述第二主磁铁部分的磁极方向与所述第一主磁铁部分的磁极方向垂直。
可选地，第一主磁铁部分呈圆形，第二主磁铁部分呈环形。
可选地，第一磁体为主磁铁时，第一主磁铁部分在远离显示模组的一端设置为N极，靠近显示模组的一端设置为S极；第二主磁铁部分在靠近第一主磁铁部分的一端设置为N极，远离第一主磁铁部分的一端设置为S极。
这样设置的主磁铁，在作为第一磁体时，能够在靠近线圈的一侧产生强磁，在靠近显示模组的一侧产生弱磁。
可选地，第二磁体为主磁铁时，第一主磁铁部分在靠近显示模组的一端设置为N极，远离显示模组的一端设置为S极；第二主磁铁部分在靠近第一主磁铁部分的一端设置为N极，远离第一主磁铁部分的一端设置为S极。
这样设置的主磁铁，在作为第二磁体时，能够在靠近线圈的一侧产生强磁，在靠近中框的一侧产生弱磁。
结合第一方面，在一种可能的实现方式中，所述移动终端还包括支架；所述支架设置于所述中框远离所述显示模组的一侧表面，且与所述中框相连接；所述中框上设置有开孔；所述第二磁体的至少一部分位于所述中框上的开孔内；所述第二磁体穿过所述中框上的开孔，设置于所述支架上。
这样一来，能够增加第一磁体与第二磁体之间的间距，有利于提高第一磁体和第二磁体的振动空间。
结合第一方面，在一种可能的实现方式中，所述移动终端还包括簧片和支撑块；所述簧片以及所述支撑块位于所述中框上的开孔内；所述簧片位于所述第二磁体与所述支架之间，且所述簧片与所述第二磁体相连接；所述支撑块设置于所述簧片和支架之间，且所述支撑块的上、下表面分别与所述簧片和支架相连接。
由第一磁体、显示模组以及泡棉胶等构成的发声系统的共振频率，远大于由簧片构成的振动系统的共振频率。因此上述簧片能够起到分频器的作用。在线圈接收到中、高频的第一驱动信号时，上述第一磁体带动显示模组振动，使得发声系统工作，实现屏幕发声。在线圈接收到低频的第二驱动信号时，上述第二磁体带动簧片以及与簧片相连接的中框振动，使得振动系统工作，实现整机振动。
应理解，所述簧片与所述第二磁体相连接，包括所述簧片与所述第二磁体直接连接或间接连接。
当移动终端包括磁碗时，簧片与第二磁体相连接，应理解为簧片与第二磁体通过磁碗相连接，即第二磁体承载于磁碗中，簧片与磁碗相连接。
当移动终端包括第一隔磁罩或第二隔磁罩时，簧片与第二磁体相连接，应理解为簧片与第二磁体通过第一隔磁罩或第二隔磁罩相连接，即第二磁体包裹于第一隔磁罩或第二隔磁罩中，簧片与第一隔磁罩或第二隔磁罩相连接。
结合第一方面，在一种可能的实现方式中，所述移动终端还包括簧片和支撑块；所述簧片、所述支撑块、所述第一磁体和所述第二磁体均位于所述容纳空间内；所述簧片位于所述第二磁体与所述中框之间，且所述簧片与所述第二磁体相连接；所述支撑块设置于所述簧片和中框之间，且所述支撑块的上、下表面分别与所述簧片和中框相连接。
在显示模组和中框之间的间隙足够大时，可以将第一磁体、第二磁体以及簧片等部件均设置于显示模组和中框之间形成的容纳空间中。上述簧片的技术效果同上所述，此处不再赘述。
结合第一方面，在一种可能的实现方式中，所述移动终端还包括支撑片；所述支撑片的上表面与所述显示模组相连接；所述支撑片的下表面与所述第一磁体相连接；其中，所述支撑片上表面的面积大于，所述第一磁体靠近所述支撑片的一侧表面的面积。
这样一来，由于支撑片为片状结构，其与显示模组的接触面积较大。因此，通过将上述支撑片的上、下表面分别与显示模组和上述第一磁体相接触，可以提高第一磁体与显示 模组的接触面积，使得上述第一磁体振动过程中，向显示模组提供的驱动力能够更加均匀的施加至显示模组。此外，通过支撑片，还可以扩大显示模组形变区域面积，增加第一磁体驱动显示模组振动的效率，降低功耗，提升屏幕发声的效果。
可选地，当移动终端包括第一隔磁罩或第二隔磁罩时，所述支撑片的下表面与所述第一磁体相连接，应理解为支撑片的下表面通过第一隔磁罩或第二隔磁罩与第一磁体相连接。即，第一磁体包裹于第一隔磁罩或第二隔磁罩中，支撑片的下表面与第一隔磁罩或第二隔磁罩的上表面相连接。
第二方面，提供一种振动模组，包括：第一磁体和第二磁体；所述第一磁体与所述第二磁体的位置相对设置；其中，所述第一磁体为线圈，所述第二磁体为主磁铁；或者，所述第一磁体为主磁铁，所述第二磁体为线圈；所述主磁铁为海尔贝克阵列，所述主磁铁在与所述线圈相对的一侧产生单边磁场。
本申请实施例提供的振动模组中，第一磁体产生的磁场和第二磁体产生的磁场之间存在相互作用力，在第一磁体产生的磁场和第二磁体产生的磁场的作用下，第一磁体或第二磁体可以发生小幅度，且高频率的上、下运动。当振动模组应用于终端上时，可以驱动终端上的部件运动，该被驱动的部件可以作为振膜，在振动过程中推动空气产生声音，以实现发声，从而可以实现听筒或喇叭的功能。
海尔贝克阵列可以产生单边磁场，由于主磁铁采用海尔贝克阵列，因而可以实现主磁铁在靠近线圈的一侧的磁场强度显著提升，而另一侧的磁场强度显著减弱。这样一来，当线圈通电以后，线圈产生的磁场与主磁铁产生的磁场相互作用时，主磁铁和线圈受到的磁力显著增强，从而可以提高线圈的振动强度或主磁铁的振动强度。
结合第二方面，在一种可能的实现方式中，所述主磁铁的一部分嵌入所述线圈的导线绕成的闭合区域中。
结合第二方面，在一种可能的实现方式中，所述振动模组包括至少一个辅磁铁；所述辅磁铁与所述主磁铁位于同一侧，且所述辅磁铁与所述主磁铁之间具有间隙；所述线圈的一部分位于所述辅磁铁和所述主磁铁之间的间隙内。
结合第二方面，在一种可能的实现方式中，所述振动模组还包括用于承载所述主磁铁的磁碗。
结合第二方面，在一种可能的实现方式中，所述主磁铁位于所述线圈的导线绕成的闭合区域以外；所述主磁铁和所述线圈相对的表面平行。
结合第二方面，在一种可能的实现方式中，所述振动模组还包括一个辅磁铁；所述辅磁铁与所述线圈位于同一侧，且所述辅磁铁嵌入所述线圈的导线绕成的闭合区域中。
结合第二方面，在一种可能的实现方式中，所述辅磁铁与所述主磁铁在相对的一侧的磁铁极性为同极。
结合第二方面，在一种可能的实现方式中，所述振动模组还包括第二隔磁罩；所述线圈位于所述第二隔磁罩内，且所述线圈中，至少除了与所述主磁铁相对设置的一侧表面以外，其余表面被所述第二隔磁罩包裹。
结合第二方面，在一种可能的实现方式中，所述振动模组还包括第一隔磁罩；所述主磁铁位于所述第一隔磁罩内，且所述主磁铁中，除了与所述线圈相对设置的一侧表面以外，其余表面被所述第一隔磁罩包裹。
结合第二方面，在一种可能的实现方式中，所述主磁铁包括第一主磁铁部分和第二主磁铁部分，所述第二主磁铁部分呈环形，嵌套于所述第一主磁铁部分上；所述第二主磁铁部分的磁极方向与所述第一主磁铁部分的磁极方向垂直。
附图说明
图1是本申请实施例提供的一种移动终端的结构示意图；
图2是图1中显示模组的一种结构示意图；
图3是图1中显示模组的另一种结构示意图；
图4是本申请实施例提供的具有振子的一种移动终端的结构示意图；
图5是图4所示的移动终端中振子的一种结构示意图；
图6是图5所示的移动终端中第一磁体和第二磁体的一种结构示意图；
图7是图5所示的移动终端中第一磁体和第二磁体的另一种结构示意图；
图8是本申请实施例提供的具有振子的另一种移动终端的结构示意图；
图9是图5所示的移动终端实现屏幕发声的信号传输示意图；
图10是图5所示的移动终端中第一磁体和第二磁体的另一种结构示意图；
图11是图10所示的线圈和主磁铁的一种俯视图；
图12是图10所示的线圈和主磁铁的另一种俯视图；
图13是图5所示的移动终端中第一磁体和第二磁体的另一种结构示意图；
图14是图5所示的移动终端中第一磁体和第二磁体的另一种结构示意图；
图15是图13所示的线圈产生的磁场和主磁铁产生的磁场相互作用的一种示意图；
图16是图13所示的线圈产生的磁场和主磁铁产生的磁场相互作用的另一种示意图；
图17是图5所示的移动终端中第一磁体和第二磁体的另一种结构示意图；
图18是图5所示的移动终端中第一磁体和第二磁体的另一种结构示意图；
图19是本申请实施例提供的具有振子和弹性元件的一种移动终端的结构示意图；
图20是图19中弹性元件的一种结构示意图；
图21是图20所示的移动终端中振子和簧片的一种设置方式示意图；
图22是图20所示的移动终端中振子和簧片的另一种设置方式示意图；
图23是图20所示的移动终端中振子和簧片的另一种设置方式示意图；
图24是图20所示的移动终端中振子和簧片的另一种设置方式示意图；
图25是图20所示的移动终端中振子和簧片的另一种设置方式示意图；
图26是图20所示的移动终端中振子和簧片的另一种设置方式示意图；
图27是图19所示的移动终端中振子和簧片的一种设置方式示意图；
图28是图21所示的移动终端实现整机振动的信号传输示意图；
图29是图21所示的移动终端实现屏幕发声和整机振动的信号传输示意图；
图30是本申请实施例提供的多个振子在移动终端中的一种设置方式示意图；
图31是图17所示的移动终端中第一磁体和第二磁体的一种磁极设置方式示意图；
图32是常规永磁体和海尔贝克阵列的空间磁场分布的示意图；
图33是本申请实施例提供的一种海尔贝克阵列的结构示意图；
图34是图31所示的主磁铁产生的磁场与辅磁铁产生的磁场相互作用的一种示意图；
图35是图31所示的线圈、主磁铁、以及辅磁铁产生的磁场相互作用的一种示意图；
图36是图31所示的线圈、主磁铁、以及辅磁铁产生的磁场相互作用的另一种示意图；
图37是图17所示的移动终端中第一磁体和第二磁体的另一种磁极设置方式示意图；
图38是图5所示的移动终端中第一磁体和第二磁体的另一种结构示意图；
图39是图5所示的移动终端中第一磁体和第二磁体的另一种结构示意图；
图40是图5所示的移动终端中第一磁体和第二磁体的另一种结构示意图；
图41是图5所示的移动终端中第一磁体和第二磁体的另一种结构示意图。
附图标记：
01-移动终端；10-显示模组；101-显示屏；102-背光模组；103-盖板；11-中框；110-承载台；111-泡棉胶；12-壳体；20-容纳空间；21-第一磁体；22-第二磁体；201-振子；211-线圈；212-支撑片；213-球顶；202-弹性元件；2210-主磁铁；2211-辅磁铁；2212-导磁片；222-簧片；223-支架；224-支撑块；225-华司；226-磁碗；30-滤波器；40-第一功率放大器；41-第二功率放大器；51-第一隔磁罩；52-第二隔磁罩；60-凹槽；70-振膜折环。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。
以下，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。
此外，本申请中，“中心”、“上”、“下”、“内”、“外”等方位术语是相对于附图中的部件示意放置的方位或位置来定义的，应当理解到，这些方向性术语是相对的概念，它们用于相对于的描述和澄清，而不是指示或暗示所指的装置或元器件必须具有的特定的方位、或以特定的方位构造和操作，其可以根据附图中部件所放置的方位的变化而相应地发生变化，因此不能理解为对本申请的限定。
还需说明的是，本申请实施例中以同一附图标记表示同一组成部分或同一零部件，对于本申请实施例中相同的零部件，图中可能仅以其中一个零件或部件为例标注了附图标记，应理解的是，对于其他相同的零件或部件，附图标记同样适用。
随着终端技术的不断发展，移动终端的功能也趋于多样化，用户对于屏幕的尺寸大小要求也越来越高。为了追求更高的屏占比从而为用户提供更优的用户体验，越来越多的移动终端取消了设置于屏幕正面的出音孔，而采用屏幕发声技术来替代传统听筒。
屏幕发声技术的原理即利用屏幕代替传统扬声器中的振膜，通过设置于移动终端中的振动发声模组驱动屏幕，以屏幕作为振动体，借由屏幕振动产生声波传送到人耳。
现有的屏幕发声技术主要通过激励器或压电陶瓷来驱动屏幕振动。下面对这两种屏幕发声技术做简要介绍。
采用激励器驱动屏幕的屏幕发声技术的原理与传统扬声器的发声原理相同，即利用电场和磁场交互作用而产生力场。激励器包括线圈和磁铁，线圈可以通入不同大小和方向的电流，在磁铁所产生的大小和方向不变的恒定磁场下，由于线圈所产生的磁场的大小和方向随着电流信号的变化而不断改变，这样线圈产生的磁场和磁铁产生的磁场的相互作用使 线圈做垂直于线圈中电流方向的运动，从而产生振动。由于力的作用是相互的，在应用时可以采用磁铁固定，线圈推动屏幕振动的方案，或者采用线圈固定，磁铁推动屏幕振动方案。在这种屏幕发声技术中，激励器可以固定于中框上，通过中框将振动传递到屏幕，但由于整机重量相对于激励器重量大很多，最终导致传递到屏幕上的振动力不足，屏幕发出的声音小。激励器也可以直接固定于屏幕上，这样直接将振动传递到屏幕，但这样虽然能主观上增大声音，却也带来可靠性问题，这是因为与激励器中的线圈相连的柔性电路板(flexible printed circuit，FPC)一般固定于中框上，激励器固定于屏幕上，与屏幕一起振动时，会造成对柔性电路板的拉扯，可靠性不高。同时，线圈通入电流后会发热，线圈的热量也会传递到屏幕上，从而造成屏幕局部过热，产生局部发灰发暗的问题。
采用压电陶瓷驱动屏幕的屏幕发声技术中，主要是利用压电陶瓷的压电性来产生振动。在外加电场的作用下，压电陶瓷内部正负电荷中心发生相对位置而被极化，从而导致电介质两端表面内出现符号相反的束缚电荷，由此位移导致电介质发生机械形变，所以两层压电陶瓷通入电流后，会造成压电形变，通入交变电流后，则会反复形变，从而产生振动。在这种屏幕发声技术中，由于陶瓷自身的易脆性质，使得压电陶瓷电片的振动幅度不能太大，否则容易断裂，压电陶瓷电片的振动幅度小，导致传递到屏幕上的振动力不足，屏幕发出的声音小。另外，在一种方案中，压电陶瓷电片可以固定于中框上(类似一个悬臂梁)，通过压电陶瓷电片振动晃动中框，进而产生类似听筒的声音效果。这种悬臂梁结构固定于中框的方式产生振动，中框不仅将振动传递给屏幕使屏幕振动而成为声音源，还会将振动传递给移动终端后盖等使移动终端的背面振动而成为另一个声音源，会引入漏音问题，用户的隐私性体验较差。
综上，现有的屏幕发声技术所采用的振动发声模组都存在对于屏幕的推动力不足，从而导致屏幕发声声音小，发声效果不好的问题。本申请实施例将提供一种移动终端，能够解决屏幕发声声音小的问题，从而提升屏幕发声效果，提高用户体验。
本申请实施例提供一种如图1所示的移动终端01。该移动终端01包括例如手机(例如蜂窝电话(cellular phone)、智能手机(smart phone))、平板电脑、膝上型电脑(laptop computer)、个人数字助理(personal digital assistant，PDA)、车载电脑、智能手表(smart watch)、智能手环(smart wristband)等。本申请实施例对上述移动终端01的具体形式不做特殊限制。以下为了方便说明，是以移动终端01为手机为例进行的说明。
上述移动终端01，如图1所示，主要包括显示模组10、中框11以及壳体12。显示模组10和壳体12分别设置于中框11两侧。上述移动终端01还包括设置于印刷线路板(printed circuit board，PCB)上的中央处理器(central processing unit，CPU)。
其中，上述显示模组10，如图2所示，包括显示屏(display panel，DP)101。
在本申请的一些实施例中，上述显示屏101可以为液晶显示(liquid crystal display，LCD)屏。在此情况下，该显示模组10还包括用于向该液晶显示屏提供光源的背光模组(back light unit，BLU)102。
或者，在本申请的另一些实施例中，如图3所示，上述显示屏101为有机发光二极管(organic light emitting diode，OLED)显示屏，该OLED显示屏能够实现自发光，因此显示模组10中无需设置上述BLU。
需要说明的是，上述OLED显示屏中的衬底基板可以采用柔性树脂材料构成。在此情 况下，该OLED显示屏为柔性显示屏。
或者，上述OLED显示屏中的衬底基板还可以采用质地较硬的材料，例如玻璃构成。在此情况下，上述OLED显示屏为硬质显示屏。
在本申请的一些实施例中，如图2或图3所示，上述显示模组10还包括位于显示屏101显示侧的盖板103，例如盖板玻璃(cover glass，CG)。该盖板玻璃具有一定的韧性。
此外，如图1所示，上述中框11位于显示模组10和壳体12之间。
如图4所示，中框11在靠近显示模组10的一侧设置有一圈承载台110。该承载台110上粘贴有泡棉胶111。显示模组10通过上述泡棉胶111固定于中框11上，使得显示模组10与中框11相连接。
固定于该承载台110上的显示模组10的背面与该中框11的第一表面B1之间具有间隙H，该间隙H形成一容纳空间20。
需要说明的是，显示模组10具有能够显示画面的出光面，上述显示模组10的背面是指，该显示模组10上与上述出光面相对设置的一侧表面，即该显示模组10靠近中框11的一侧表面。
此外，中框11的第二表面B2上用于安装电池、印刷电路板(printed circuit board，PCB)、摄像头(camera)、天线等内部元件。
需要说明的是，中框11的第一表面B1与第二表面B2相对设置。第一表面B1靠近显示模组10，第二表面B2靠近壳体12。
壳体12安装于中框11上，壳体12能够对安装于中框11第二表面B2上的上述内部元件进行保护。
此外，上述移动终端01还包括至少一个如图4所示的振子201。该振子201与显示模组10、中框11相连接。
在此情况下，上述振子201还与该CPU的第一信号端S1(如图1所示)电连接，振子201用于接收第一信号端S1提供的第一驱动信号，并根据第一驱动信号，沿垂直于显示模组10出光面A的方向驱动显示模组10振动。
在本申请的一些实施例中，上述第一驱动信号可以为中、高频信号。例如频率高于250Hz左右的信号。示例性的，当上述移动终端01为手机时，上述第一驱动信号可以为手机的CPU发送至振子201的，与音频数字信号对应的音频模拟信号。
由上述可知，显示模组10通过上述泡棉胶111安装于承载台110上。该泡棉胶111具有一定的弹性，在外力作用下能够发生变形。这样一来，当振子201根据上述第一驱动信号，沿垂直于显示模组10出光面A的方向振动时，振子201会驱动显示模组10相对于中框11发生小幅度，且高频率的上、下运动。
此时，显示模组10发生的小幅度，且高频率的振动无法带动中框11振动，因此中框11近似处于静止状态。
在此情况下，在振子201的驱动下，显示模组10作为振膜，在振动过程中推动空气产生声音，以实现屏幕发声。
可选地，振子201与显示模组10连接时，振子201与显示模组10相接触的部分可以为图2中所示的BLU，或者为图3中所示的OLED，或者是图2或图3中所示的盖板CG。在一些终端中盖板的面积比显示屏的面积大，因此振子可以只接触盖板。
应理解，振子201也可以驱动移动终端的其他部件发声，例如壳体12。这样，上述振子201可以设置于中框11与壳体12之间，振子201与中框11与壳体12相连接。
以壳体12为电池背盖为例，此时，振子201与中框和电池背盖相连接，在此情况下，振子201接收第一信号端S1提供的第一驱动信号，并根据接收到的第一驱动信号，沿垂直于电池背盖的方向驱动电池背盖相对于中框11发生小幅度，且高频率的上、下运动，并驱动电池背盖发生小幅度，且高频率的振动，电池背盖作为振膜，在振动过程中推动空气产生声音，以实现电池背盖发声。为方便理解，本申请实施例主要以振子201实现屏幕发声为例进行说明。
由上述可知，显示模组10中的显示屏101可以为LCD屏或者OLED显示屏。此外，相对于LCD屏而言，OLED显示屏能够自发光。因此，显示模组10中无需设置BLU，所以显示模组10的厚度薄，其作为振膜实现屏幕发声时，更容易发生形变，使得振膜的发声效果更好。
在此情况下，上述振子201的部分结构、显示模组10以及用于将显示模组10固定于中框11上的泡棉胶111，构成用于实现屏幕发声的发声系统。此时，振子201中部分结构、显示模组10和泡棉胶111的弹性系数，可以影响上述发声系统共振频率。
基于此，为了使得发声系统具有良好的振动效果，上述第一驱动信号的频率与该发声系统的共振频率相同或近似相同。
在本申请的一些实施例中，上述振子201，如图5所示，包括第一磁体21和第二磁体22。第一磁体21设置于显示模组10的背面，第二磁体22设置于中框11上。且第一磁体21和第二磁体22的位置相对设置。此外，第一磁体21和第二磁体22的至少一部分位于上述容纳空间20内。
本申请实施例中，第一磁体产生的磁场和第二磁体产生的磁场之间存在相互作用力，在第一磁体产生的磁场和第二磁体产生的磁场的作用下，第一磁体可以沿垂直于显示模组出光面的方向振动，由于第一磁体设置于显示模组的背面，因此第一磁体会驱动显示模组相对于中框发生小幅度，且高频率的上、下运动。在第一磁体的驱动下，显示模组作为振膜，在振动过程中推动空气产生声音，以实现屏幕发声，从而可以实现听筒或喇叭的功能。由于驱动显示模组振动的动力来源于第一磁体产生的磁场和第二磁体产生的磁场之间的作用力，该作用力容易使显示模组产生较大的振动幅度，从而发出较大的声音，能够提升屏幕发声效果。
以下对上述振子201中的第一磁体21、第二磁体22的结构以及设置方式进行详细的举例说明。
示例一
本示例中，如图6所示，上述第一磁体21为线圈211，第二磁体22为主磁铁2210。
在此情况下，线圈211设置于显示模组10的背面，主磁铁2210设置于中框11上。
或者，图7所示，上述第一磁体21为主磁铁2210，第二磁体为线圈211。
在此情况下，上述主磁铁2210设置于显示模组10的背面，线圈211设置于中框11上。
此外，在本示例中，主磁铁2210的一部分嵌入线圈211的导线绕成的闭合区域中。
为了使得第二磁体22(例如图6所示的主磁铁2210，或图7所示的线圈211)能够 设置于中框11上。
在本申请的一些实施例中，如图6或图7所示，中框11上设置有开孔。
上述移动终端01包括支架223。上述主磁铁2210或线圈211的至少一部分位于中框11上的开孔内。
该支架223可以通过胶层粘贴，或者螺纹连接(图6中，以螺钉连接为例)的方式固定于中框11的第二表面B2(远离显示模组10的一侧表面)上。
在此情况下，第二磁体22(例如图6所示的主磁铁2210，或图7所示的线圈211)穿过上述中框11上的开孔，设置于支架223上。可以通过胶层将上述第二磁体22固定于支架223靠近显示模组10的表面上。
或者，在本申请的另一些实施例中，如图8所示，当显示模组10与中框11之间的间距H足够大的情况下，可以将整个振子201设置于显示模组10与中框11之间。
在此情况下，主磁铁2210和线圈211均位于显示模组10和中框11之间的容纳空间20中。
此时，第二磁体22(例如图8所示的主磁铁2210)可以通过胶层直接固定于中框11靠近显示模组10的一侧表面上。
此外，在本申请的一些实施例中，也可以将图8中的主磁铁2210与线圈211的位置互换，即第一磁体21为主磁铁2210，第二磁体22为线圈211。同理可得，作为第二磁体22的线圈211可以通过胶层直接固定于中框11靠近显示模组10的一侧表面上。
基于此，以图6所示的移动终端01为例，对该移动终端01实现屏幕发声的过程进行说明。
将线圈211与上述CPU的第一信号端S1电连接。在此情况下，为了实现屏幕发声模式，如图9所示，由CPU的第一信号端S1提供的第一驱动信号，经过滤波器30以及第一功率放大器40的处理后，传输至振子201中的线圈211。
上述滤波器30能够滤除第一驱动信号中的低频信号，使得第一驱动信号的频率与上述发声系统的频率更加接近。
此外，上述第一功率放大器40能够对滤波器30输出的信号进行放大，以便于通过放大后的第一驱动信号驱动振子201中的线圈211产生交变磁场。
在此情况下，当上述线圈211，接收到上述第一驱动信号(即中、高频信号)时，线圈211在上述第一驱动信号的作用下，产生一个交变的磁场。
其中，线圈211产生磁场的大小和方向随着第一驱动信号的变化而变化。例如，在线圈211接收到上述第一驱动信号的情况下，当线圈211内的电流较大时，该线圈211产生的磁场强度较大，反之较小。
此外，线圈211内电流的传输方向可以控制线圈211产生的磁场的方向。
上述主磁铁2210可以为永磁铁，或者接收恒定电流的电磁铁。在此情况下，上述主磁铁2210会产生一个大小和方向不变的恒定的磁场。
由上述可知，第一驱动信号为中、高频信号，其频率与上述发声系统的共振频率接近。因此，在上述两个磁场的相互作用下，可以使得发声系统中的线圈211沿上述Z方向，切割磁感线上、下小幅度且高频率的振动。
由于上述发声系统中，振子201中的线圈211与显示模组10相连接，因此线圈211 在沿Z方向上、下振动的过程中，可以带动显示模组10沿相同的方向上、下小幅度且高频率振动。
这样一来，线圈211、显示模组10以及用于固定显示模组10的泡棉胶111构成发声系统中，显示模组10作为振膜在振动过程中，推动空气发声，达到屏幕发声的目的。此时，上述发声系统能够实现听筒或喇叭的作用，以对音频信号进行播放。
需要说明的是，上述第一驱动信号的频率与该显示模组10的振动频率成正比。此外，第一驱动信号的大小，即通入线圈211上的电流的大小，与显示模组10的振动强度成正比。第一驱动信号的方向，即通入线圈211上的电流的方向，与显示模组10的运动方向相关联，通入线圈211上的电流的方向改变时，显示模组10的运动方向改变。因此，当改变第一驱动信号时，线圈211带动显示模组10的振动形态(包括：振动频率、振幅以及方向等)会相应发生变化，从而使得发声系统发出的声音不同。
在此基础上，为了提高显示模组10的振动效果，如图6或图7所示，上述振子201还包括支撑片212。该支撑片212的上表面固定安装于显示模组10靠近中框11的一侧表面上，支撑片212的下表面与第一磁体21(例如图6所示的线圈211，或图7所示的主磁铁2210)固定连接。在此情况下，上述第一磁体21通过支撑片212与显示模组10相连接。
这样一来，由于支撑片212为片状结构，其与显示模组10的接触面积比第一磁体11与显示模组10直接接触的面积大。因此，通过将上述支撑片212的上、下表面分别与显示模组10和上述第一磁体21相接触，可以提高第一磁体21与显示模组10的接触面积，使得上述第一磁体21振动过程中，向显示模组10提供的驱动力能够更加均匀的施加至显示模组10。
此外，通过支撑片212，还可以扩大显示模组10形变区域面积，增加第一磁体21驱动显示模组10振动的效率，降低功耗，提升屏幕发声的效果。
需要说明的是，构成上述支撑片212的材料可以为金属材料例如钢片，或者其他质地较硬的材料。
由上述可知，第一磁体21(例如图6所示的线圈211，或图7所示的主磁铁2210)、显示模组10以及泡棉胶111构成的上述发声系统。该发声系统的共振频率可以由上述第一磁体21、支撑片212的弹性系数，以及显示模组10和泡棉胶111的弹性系数确定。
此外，第一驱动信号的频率与中框11的共振频率相差较大。因此，线圈211产生的磁场与主磁铁2210的磁场的相互作用，无法驱动中框11沿上述Z方向，上、下运动，中框11处于静止状态。
综上所述，本申请移动终端01中，在振子201中的线圈211在接收到中、高频信号的情况下，线圈211产生的磁场与主磁铁2210产生的磁场之间相互作用，能够使得图6所示的线圈211驱动显示模组10进行幅度较小，且高频率的振动。显示模组10作为振膜推动空气产生声音。这样一来，线圈211、显示模组10以及用于固定显示模组10于中框11上的泡棉胶111构成的发声系统发声，实现听筒或喇叭的功能。
在此情况下，上述移动终端01中无需设置出音孔，从而能够解决由于出音孔堵塞影响音质的问题。此外，减少了移动终端01中的开孔工艺，使得移动终端01的显示侧表面更加的平整、圆润。
需要说明的是，上述是以图6所示的结构为例进行的说明，图7、图8所示实现屏幕发声的过程同上所述，此处不再赘述。
此外，图7中将线圈211作为第二磁体22设置于中框11上。例如，线圈211的下表面可以通过胶层固定于与中框11相连接的支架223的上表面。这样一来，一方面，由上述可知，线圈211需要与安装于中框11上的CPU的第一信号端S1电连接，以分别接受第一信号端S1提供的第一驱动信号。因此，将线圈211也安装于中框11上，能够简化线圈211与CPU的电连接方式，且提高线圈211与CPU的电连接的可靠性。
另一方面，将作为第一磁体21主磁铁2210设置于显示模组10的背面，可以避免出现将线圈211作为第一磁体21与显示模组10相连接的方案中，由于线圈211通电后发热，而降低显示模组10显示效果的问题。
示例二
本示例中，如图10所示，上述第一磁体21为线圈211，第二磁体22为主磁铁2210。
主磁铁2210的一部分嵌入线圈211的导线绕成的闭合区域中。
此外，与示例一的不同之处在于，如图10所示，该振子201还包括位于该主磁铁2210周边的至少一个辅磁铁2211。
辅磁铁2211与主磁铁2210位于同一侧。在此情况下，如图10所示，当主磁铁2210通过支架223设置于中框11上时，该辅磁铁2211也设置于中框11上。或者，当主磁铁2210通过支撑片212设置于显示模组10的背面时，该辅磁铁2211也设置于显示模组10的背面。
此外，辅磁铁2211与主磁铁2210之间具有间隙。线圈211的一部分位于辅磁铁2211和主磁铁2210之间的间隙内。
在此情况下，如图11或图12所示，主磁铁2210位于线圈211的导线绕成的闭合区域中。其中，如图11中，四个辅磁铁2211设置于主磁铁2210周边，形成五磁路。或者，如图12中，圆形的主磁铁2210位于一个环形的辅磁铁2211内，形成双磁路。
这样一来，线圈211产生的磁场不仅可以与主磁铁2210产生的磁场相互作用，还可以与至少一个辅磁铁2211产生的磁场相互作用，达到提高线圈211振动强度或主磁铁2210振动强度的目的。
此外，为了对上述主磁铁2210，或主磁铁2210和辅磁铁2211进行支撑，如图10所示，振子201还包括磁碗226。该磁碗226的上表面与主磁铁2210和辅磁铁2211的下表面通过胶层固定连接，磁碗226的下表面穿过中框11上的开孔，通过胶层固定于支架223的上表面。
构成该磁碗226的材料可以为不锈钢。在此情况下，上述磁碗226可以具有隔磁的作用，以减小主磁铁2210和辅磁铁2211产生的磁场对移动终端01中的其他器件产生不良影响的几率。
此外，为了提高主磁铁2210和辅磁铁2211形成的磁场的均匀性，该振子201还包括位于主磁铁2210和辅磁铁2211靠近显示模组10一侧表面上覆盖的华司225(图10中主磁铁2210和辅磁铁2211靠近显示模组10的上表面的黑色覆盖层)。华司225采用低碳钢构成，一方面，其具有导磁作用，以达到降低主磁铁2210和辅磁铁2211磁阻的目的。另一方面，该华司225具有上述隔磁的作用。需要说明的是，图10所示的移动终端01同 样能够实现示例一所述的屏幕发声的过程，在此不再一一赘述。
此外，在本申请的一些实施例中，也可以将图10中的主磁铁2210、辅磁铁2211与线圈211的位置互换，即第一磁体21为主磁铁2210，第二磁体22为线圈211。在此情况下，主磁铁2210和辅磁铁2211固定于显示模组10的背面，而线圈211穿过中框上的开孔固定于支架223的上表面。此时，上述华司225覆盖主磁铁2210和辅磁铁2211远离显示模组10的一侧表面上。具有该结构的移动终端实现屏幕发声的过程同上所述，此处不再赘述。
示例三
本示例中，如图13所示，上述第一磁体21为线圈211，第二磁体22为主磁铁2210。
在此情况下，线圈211可以设置于显示模组10的背面，主磁铁2210设置于中框11上。
或者，如图14所示，上述第一磁体21为主磁铁2210，第二磁体22为线圈211。
在此情况下，上述主磁铁2210可以设置于显示模组10的背面，线圈211设置于中框11上。
本示例中，线圈211的俯视结构，可以采用图11或12所示的环形结构。
此外，与示例一的不同之处在于，主磁铁2210位于线圈211的导线绕成的闭合区域以外。主磁铁2210和线圈211相对的表面平行。
这样一来，组装振子201的过程中，无需将主磁铁2210嵌入线圈211的导线绕成的闭合区域内，解决了主磁铁2210与线圈211的导线绕成的闭合区域无法对准的问题。从而有利于降低的主磁铁2210与线圈211的对位精度，弱化了移动终端01整机装配的难度。
在此情况下，当线圈211通电后，如图15所示，线圈211产生的磁场可以与主磁铁2210产生的磁场产生相吸的力。
或者，当线圈211中通入的电流方向改变后，如图16所示，线圈211产生的磁场可以与主磁铁2210产生的磁场产生相斥的力。
在此情况下，在线圈211产生的磁场和主磁铁2210产生的磁场的作用下，线圈211和主磁铁2210的振动方向相反。
需要说明的是，当通电的线圈211和主磁铁2210振动接近时，两者相对的表面不相接触。当通电的线圈211和主磁铁2210振动远离时，两者相对的表面之间具有一定的距离。为了避免增加移动终端01的厚度，上述距离可以小于或等于0.7mm。在本申请的一些实施例中，上述距离还可以小于或等于0.4mm。
图13和14所示的移动终端01同样能够实现上述屏幕发声过程。不同之处在于，本示例中，当振子201中的线圈211接收到上述第一驱动信号时，在线圈211产生的磁场和主磁铁2210产生的磁场，使得线圈211和主磁铁2210之间能够相吸或相斥，从而使得第一磁体21(例如图13所示的线圈211，或图14所示的主磁铁2210)相对于第二磁体22(例如图13所示的主磁铁2210，或图14所示的线圈211)沿Z方向，发生小幅度，且高频率的振动。从而通过上述第一磁体21带动显示模组10发生小幅度，且高频率的振动，以实现屏幕发声。
此外，为了减小线圈211和主磁铁2210产生的磁场对移动终端中的其他器件产生不良影响的几率，本申请的一些实施例提供的移动终端01，还包括如图13或图14所示的 第一隔磁罩51和第二隔磁罩52。
主磁铁2210中除了与线圈211相对的一侧表面以外，其余表面被第一隔磁罩51包裹。
线圈211中至少除了与主磁铁2210相对的一侧表面以外，其余表面被第二隔磁罩52包裹。
在此情况下，支撑片212的上表面固定安装于显示模组10靠近中框11的一侧表面上，支撑片212的下表面通过第一隔磁罩51或第二隔磁罩52与第一磁体21(例如图13所示的线圈211，或图14所示的主磁铁2210)固定连接。如图13，支撑片212的下表面与第二隔磁罩52相连接，线圈211包裹于第二隔磁罩52内，即支撑片212的下表面通过第二隔磁罩52与线圈211相连接。如图14，支撑片212的下表面与第一隔磁罩51相连接，主磁铁2210包裹于第一隔磁罩51内，即支撑片212的下表面通过第一隔磁罩51与主磁铁2210相连接。
示例四
本示例中，如图17所示，上述第一磁体21为线圈211，第二磁体22为主磁铁2210。
主磁铁2210位于线圈211的导线绕成的闭合区域以外。主磁铁2210和线圈211相对的表面平行。线圈211的结构与示例三相同。
与示例三的不同之处在于，如图17所示，该振子201还包括辅磁铁2211。该辅磁铁2211与线圈211位于同一侧，且辅磁铁2211嵌入线圈211的导线绕成的闭合区域中。
这样一来，线圈211产生的磁场不仅可以与主磁铁2210产生的磁场相互作用，还可以与辅磁铁2211产生的磁场相互作用，达到提高线圈211振动强度或主磁铁2210振动强度的目的。具体而言，线圈211通电以后，穿过线圈211的磁通量包括主磁铁2210产生的磁场穿过线圈211的磁通量和辅磁铁2211产生的磁场穿过线圈211的磁通量，这样线圈211受到的磁感应强度更大，线圈211与主磁铁2210之间磁场的作用力更大，从而可以提高线圈211振动强度或主磁铁2210振动强度。
此外，在移动终端01包括辅磁铁2211的情况下，由于上述辅磁铁2211与线圈211位于同一侧，因此该辅磁铁2211位于第二隔磁罩52内。线圈211与辅磁铁2211相对的表面未被第二隔磁罩52覆盖。在此情况下，第一隔磁罩51和第二隔磁罩52呈U型。
在此基础上，上述第一隔磁罩51和第二隔磁罩52采用导磁材料构成，以减少主磁铁2210与线圈211构成的磁场中磁力线的扩散，达到降低磁阻的目的。
需要说明的是，图17所示的移动终端01同样能够实现上述屏幕发声的过程，在此不再一一赘述。
此外，在本申请的一些实施例中，也可以将图17中的主磁铁2210与线圈211和辅磁铁2211的位置互换，如图18所示，即上述第一磁体21为主磁铁2210，第二磁体22为线圈211。在此情况下，主磁铁2210固定于显示模组10的背面，而线圈211和辅磁铁2211穿过中框11上的开孔，固定于支架223的上表面。具有该结构的移动终端实现屏幕发声的过程同上所述，此处不再赘述。图18中，由于在线圈211的同一侧设置了辅磁铁2211，当线圈211中通入电流后(即在振子201的工作状态下)，线圈211产生的磁场既可以和主磁铁2210产生的磁场相互作用，还可以与辅磁铁2211产生的磁场相互作用，从而能够提高主磁铁2210的振动强度。
图17或图18中所示的主磁铁2210可以为永磁铁，或者接收恒定电流的电磁铁。辅 磁铁2211可以为永磁铁，或者接收恒定电流的电磁铁。当主磁铁2210和辅磁铁2211均为永磁铁时，主磁铁2210和辅磁铁2211在相对的一侧(或者说是相靠近的端)可以设置为同极，相远离的一侧(或者说是相靠近的端)自然为同极，这样主磁铁2210与辅磁铁2211之间存在相互排斥的力；主磁铁2210和辅磁铁2211在相对的一侧可以设置为异极，相远离的一侧自然为异极，这样主磁铁2210与辅磁铁2211之间存在相互吸引的力。
图18示出了主磁铁2210和辅磁铁2211的一种磁极设置方式。如图18所示，主磁铁2210和辅磁铁2211相对设置，其中主磁铁2210在靠近辅磁铁2211的一端设置为N极，远离辅磁铁2211(即靠近显示模组10)的一端设置为S极，相应地，辅磁铁2211在靠近主磁铁2210的一端设置为N极，远离主磁铁2210(即靠近支架223)的一端设置为S极。换句话说，主磁铁2210和辅磁铁2211相对的一端设置为同极，相远离的一端设置为同极，使得主磁铁2210和辅磁铁2211之间存在斥力。图18示出了一种磁极设置方式，即主磁铁2210和辅磁铁2211相对的一端均设置为N极，相远离的一端均设置为S极，在本申请的一些实施例中，另一种磁极设置方式可以为主磁铁2210和辅磁铁2211相对的一端均设置为S极，相远离的一端均设置为N极。
以图18示出的磁极设置方式为例，在振子201处于非工作状态(即线圈211中没有通入电流)时，主磁铁2210和辅磁铁2211各自也会产生磁场。主磁铁2210被第一隔磁罩51包裹，第一隔磁罩51采用导磁材料时，第一隔磁罩51处于主磁铁2210产生的磁场中会被主磁铁2210吸引，经过一段时间后第一隔磁罩51会被主磁铁2210磁化从而具有磁性，其中第一隔磁罩51在靠近主磁铁2210的S极的一端会被磁化为N极，第一隔磁罩51在远离主磁铁2210的S极的一端(即第一隔磁罩51呈U型时，第一隔磁罩51的边沿)相应地被磁化为S极。类似地，辅磁铁2211被第二隔磁罩52包裹，第二隔磁罩52采用导磁材料时，第二隔磁罩52处于辅磁铁2211产生的磁场中会被辅磁铁2211吸引，经过一段时间后第二隔磁罩52会被辅磁铁2211磁化从而具有磁性，其中第二隔磁罩52在靠近辅磁铁2211的S极的一端会被磁化为N极，第二隔磁罩52在远离辅磁铁2211的S极的一端(即第二隔磁罩52呈U型时，第二隔磁罩52的边沿)相应地被磁化为S极。
具体参考图18，在振子201处于非工作状态下时，第一隔磁罩51和第二隔磁罩52分别被主磁铁2210和辅磁铁2211磁化而具有磁性。参考主磁铁2210靠近辅磁铁2211的一侧的中心位置，主磁铁2210与辅磁铁2211相对的一端均为N极，因而主磁铁2210产生的磁场与辅磁铁2211产生的磁场可以产生相斥的力，主磁铁2210与辅磁铁2211存在向远离对方方向运动的趋势。仍参考主磁铁2210靠近辅磁铁2211的一侧的中心位置，主磁铁2210与第二隔磁罩52相对的一端为异极，因而主磁铁2210产生的磁场与第二隔磁罩52产生的磁场可以产生相吸的力，主磁铁2210与第二隔磁罩52存在向靠近对方方向运动的趋势。针对主磁铁2210来说，主磁铁2210在辅磁铁2211产生的磁场和第二隔磁罩52产生的磁场的综合作用下，可以处于平衡状态，几乎不受力。类似地，辅磁铁2211在主磁铁2210产生的磁场和第一隔磁罩51产生的磁场的综合作用下，可以处于平衡状态，几乎不受力；第一隔磁罩51在辅磁铁2211产生的磁场和第二隔磁罩52产生的磁场的综合作用下，可以处于平衡状态，几乎不受力；第二隔磁罩52在主磁铁2210产生的磁场和第一隔磁罩51产生的磁场的综合作用下，可以处于平衡状态，几乎不受力。
因此，按照如图18所示的磁极设置方式，在振子201处于非工作状态下时，第一磁 体21(例如图17所示的线圈211，或图18所示的主磁铁2210)和第二磁体22(例如图17所示的主磁铁2210，或图18所示的线圈211)可以处于相对平衡的状态，这样可以使得显示模组10也保持平衡，增强第一磁体21(例如图17所示的线圈211，或图18所示的主磁铁2210)与显示模组10的连接的可靠性，避免了在主磁铁2210和辅磁铁2211相对的一端设置为异极或者不设置辅磁铁2211的情况下，第一磁体21和第二磁体22之间存在相互吸引的力，导致显示模组10被第一磁体21牵引而发生变形例如显示模组10下凹以及第一磁体21与显示模组10脱离的问题。
需要说明的是，在不设置辅磁铁2211的情况下，第一磁体21和第二磁体22之间可能存在相互吸引的力，具体来说，例如上述示例一至示例三中，当主磁铁2210与线圈211的距离很近时，主磁铁2210可能将线圈211磁化，从而在线圈211与主磁铁2210之间存在吸力。
应理解，上述第一磁体21与第二磁体22处于相对平衡的状态实际可以理解为，是包括主磁铁2210、线圈211、辅磁铁2211、第一隔磁罩51和第二隔磁罩52等的系统处于相对平衡的状态，或者说包括主磁铁2210和第一隔磁罩51的第一振子部分(图18中可以看做是上振子)与包括线圈211、辅磁铁2211和第二隔磁罩52的第二振子部分(图18中可以看做是下振子)处于相对平衡的状态，其中第一振子部分和第二振子部分中，一个固定于显示模组10的背面(即上振子)，另一个固定于中框上(即下振子)，第一振子部分和第二振子部分相对独立。
还应理解，在实际应用中，要在振子201处于非工作状态时达到第一磁体21和第二磁体22的相对平衡的状态，可以根据第一磁体21和第二磁体22的规格进行相应地设计。在一些实施例中，当振子201处于非工作状态时，第一磁体21和第二磁体22之间也可以存在不超过预设值的斥力或吸力，能够使得显示模组10不发生明显形变。
上述是以移动终端01实现屏幕发声为例，对该移动终端01的结构进行的说明。在本申请的一些实施例中，上述移动终端01如图19所示，还包括与该振子201相连接的弹性元件202。弹性元件202固定安装于中框11上，且该弹性元件202能够在外力作用下发生变形。
在此情况下，上述振子201中的线圈211与CPU的第一信号端S1电连接。该CPU的第一信号端S1可以分时，向振子201中的线圈211提供上述第一驱动信号和第二驱动信号。
或者，在本申请的另一些实施例中，上述振子201中的线圈211还与CPU的第二信号端S2(如图1所示)电连接，该振子201中的线圈211用于接收第二信号端S2提供的第二驱动信号。
需要说明的是，上述第二驱动信号可以为低频信号，例如频率低于250Hz左右的信号。示例性的，当上述移动终端01为手机时，上述第二驱动信号可以为手机的中央处理器(central processing unit，CPU)发送至线圈211的，由来电或接收信息的信号触发的振动信号。
在此情况下，当线圈211接收到上述第二驱动信号时，该振子201根据该第二驱动信号，进行大幅度，且低频率的振动。
由于弹性元件202与该振子201相连接，所以振子201在Z方向发生大幅度，且低频 率的振动时，能够使得弹性元件202受力而发生变形，进而跟随振子201一同沿Z方向振动。
由于弹性元件202固定安装于中框11上，因此弹性元件202在振动的过程中，能够带动中框11，以及与中框11相连接的显示模组10、壳体12等构成的移动终端01，实现整机较大幅度，且低频率的振动。在此情况下，可以实现手机在来电或来信息时的振动提醒。在本申请的一些实施例中，上述弹性元件202可以为如图20所示的簧片222。上述簧片222在外力作用下容易发生变形，并沿Z方向进行上、下振动。在此情况下，当振子201在发生大幅度，低频率的振动时，能够向簧片222施加作用力，簧片222在该作用力下发生形变，并跟随振子201一起振动。
以下为了实现整机振动，对具有上述簧片222的移动终端01的结构进行说明。
示例五
本示例中，为了使得簧片222具有一定的回弹空间。如图20所示，在中框11上设置有开孔，且移动终端01包括上述支架223的情况下，上述移动终端01还包括支撑块224。上述簧片222以及支撑块224位于中框11上的开孔内。
在此情况下，以第二磁体22为如图21、图21、图23或图24所示的主磁铁2210为例，簧片222位于第二磁体22与支架223之间，簧片与第二磁体相连接。簧片与第二磁体可以直接连接，也可以间接连接，以下对簧片222的设置位置进行说明。
例如，在本申请的一些实施例中，如图21所示，簧片222通过胶层(簧片222上表面的黑色覆盖层)直接与主磁铁2210的下表面相连接。
又例如，在本申请的另一些实施例中，如图22所示，在主磁铁2210位于线圈211的导线绕成的闭合区域中的情况下，当上述移动终端01还包括与主磁铁2210位于同一侧的辅磁铁2211时，上述主磁铁2210和辅磁铁2211可以设置于磁碗226上。在此情况下，上述簧片222通过胶层与磁碗226的下表面相连接，即上述簧片222通过磁碗226与主磁铁2210相连接。
再例如，在本申请的另一些实施例中，如图23所示，在主磁铁2210与线圈211相对设置，且该主磁铁2210位于线圈211的导线绕成的闭合区域以外的情况下，当主磁铁2210位于第一隔磁罩51内时，上述簧片222通过胶层与第一隔磁罩51的下表面相连接，即上述簧片222通过第一隔磁罩51与主磁铁2210相连接。
此外，基于图23所示的结构，当移动终端还包括如图24所示的辅磁铁2211时，由于该辅磁铁2211与线圈211位于同一侧，且嵌入线圈211的导线绕成的闭合区域中。因此，上述簧片222仍然通过胶层与容纳有主磁铁2210的第一隔磁罩51的下表面相连接。
或者，以第二磁体22为如图25或图26所示的线圈211为例，对簧片222的设置位置进行说明。
例如，在本申请的另一些实施例中，如图25所示，簧片222通过胶层直接与线圈211的下表面相连接。
又例如，在本申请的另一些实施例中，如图26所示，在主磁铁2210与线圈211相对设置，且该主磁铁2210位于线圈211的导线绕成的闭合区域以外的情况下，上述簧片222通过胶层与容纳有线圈211的第二隔磁罩52的下表面相连接，即上述簧片222通过第二隔磁罩52与线圈211相连接。
此外，支撑块224设置于簧片222和支架223之间，且支撑块224的上、下表面分别与簧片222和支架223相连接。
在此情况下，在支撑块224的支撑作用下，可以使得簧片222在未受到外力时，与支架223之间具有一定的间隙，该间隙可以作为簧片222在外力作用下发生形变的回弹空间。此外，在主磁铁2210(或线圈211)带动簧片222在上述回弹空间振动时，簧片222的振动可以通过支架223，传递至中框11。
此外，本示例中，当移动终端01的结构如图27所示，该移动终端01中的簧片222、支撑块224、第一磁体21(例如，图27中的线圈211)、第二磁体22(例如，图27中的主磁铁2210)以及辅磁铁2211均位于容纳空间20内的情况下，为了使得簧片222具有一定的回弹空间，簧片222可以位于第二磁体22与中框111之间，且簧片222可以通过胶层与第二磁体22相连接。
此外，支撑块224设置于簧片222和中框11之间，且支撑块224的上、下表面分别与簧片222和中框11相连接。
在此情况下，在支撑块224的支撑作用下，可以使得簧片222在未受到外力时，与中框11之间具有一定的间隙，该间隙可以作为簧片222在外力作用下发生形变的回弹空间。此外，在上述第二磁体22(例如，图27中的主磁铁2210)带动簧片222在上述回弹空间振动时，簧片222的振动可以传递至中框11。
由上述可知，簧片222能够驱动中框11振动，并通过中框11带动移动终端01整机振动。因此，簧片222可以作为驱动移动终端01整机振动的振动系统。在此情况下，簧片222的弹性系数能够影响上述振动系统的共振频率。
其中，该簧片222的弹性系数k、质量m与该簧片222的共振频率f之间满足以下公式(1)。
Figure PCTCN2020102243-appb-000001
在此情况下，当选择的簧片222的材料、尺寸不同时，簧片222的共振频率会发生变化，从而使得上述振动系统的共振频率也发生变化。
基于此，为了使得振动系统具有良好的振动效果，上述第二驱动信号的频率需要与该振动系统的共振频率相同或近似相同。
在此情况下，以图21所示的结构为例，对上述移动终端01实现整机振动的过程进行说明。如图28所示，由CPU的第二信号端S2提供的第二驱动信号经过第二功率放大器41的信号处理后，传输至振子201中的线圈211。该第二功率放大器41能够对第二信号端S2进行放大，以便于线圈211对放大后的第二驱动信号进行识别。
在此情况下，上述线圈211，接收到上述第二驱动信号(即低频信号)后，线圈211在上述第二驱动信号的作用下产生一个交变的磁场。
同上所述，上述主磁铁2210会产生一个大小和方向不变的恒定的磁场。
第二驱动信号为低频信号，其与发声系统的共振频率相差较大。因此，在上述两个磁场的相互作用下，发声系统中的线圈211不会带动作为振膜的显示模组10发生高频率的振动，从而无法通过显示模组10推动空气发声。该发声系统处于非工作状态。
此外，第二驱动信号的频率与作为振动系统的簧片222的共振频率相近。因此，线圈 211上产生的磁场与主磁铁2210的磁场的相互作用能够驱动簧片222沿上述Z方向，上、下运动。
在此情况下，簧片222通过支架223带动中框11振动。与此同时，与中框11相连接的显示模组10、壳体12等一起进行低频率，且大幅度的振动。此时，振动系统处于工作状态，移动终端01发生整机振动。上述振动系统可以起到马达的作用，可以实现手机在来电或来信息时的振动提醒。
在此情况下，上述簧片222可以实现马达的功能，而无需在移动终端01中单独设置马达。由于簧片222相对于马达而言，体积更小，从而能够节约更多的架构空间。上述架构空间可以设置具有其他功能的器件，例如前、后置摄像头、指纹识别器等。达到提高移动终端01功能的集成度。
此外，以图21所示的结构为例，对上述移动终端01实现屏幕发声和整机振动的过程进行说明。
为了实现屏幕发声模式和移动终端01的整机振动模式，如图29所示，由CPU的第一信号端S1提供的第一驱动信号经过滤波器30以及第一功率放大器40的信号处理后，传输至振子201中的线圈211。此外，由CPU的第二信号端S2提供的第二驱动信号经过第二功率放大器41后传输至线圈211。
在此情况下，上述振子201中的线圈211，即可以接收到上述第一驱动信号(即中、高频信号)，又可以接收到上述第二驱动信号(即低频信号)。
需要说明的是，当上述第一驱动信号和第二驱动信号同时输入至线圈211时，该线圈211接收的叠加信号的频率为第一驱动信号的频率(例如1000Hz)和第二驱动信号(例如100HZ)频率的叠加。此时，该叠加信号的波形不再为谐波波形。
在此情况下，线圈211在上述叠加信号的作用下产生一个交变的磁场。该磁场与主磁铁2210产生的恒定磁场的作用下，驱动线圈211带动显示模组10沿上述Z方向，小幅度且高频率的振动。显示模组10作为振膜在振动过程中推动空气发声，达到屏幕发声的目的。此时，发声系统处于工作状态。
此外，线圈211在上述叠加信号产生的交变的磁场与主磁铁2210产生的恒定磁场的作用下，驱动主磁铁2210带动簧片222沿上述Z方向，上、下运动。在此情况下，簧片222通过支架223带动中框11振动。与此同时，与中框11相连接的显示模组10、壳体12等一起进行低频率，且大幅度的振动。此时，振动系统处于工作状态，移动终端01发生整机振动。
综上所述，由第一磁体21(例如图21所示的线圈211，或图25所示的主磁铁2210)、显示模组10以及泡棉胶111构成的发声系统的共振频率，远大于由簧片222构成的振动系统的共振频率。因此上述簧片222能够起到分频器的作用。在线圈211接收到中、高频的第一驱动信号时，上述第一磁体21带动显示模组10振动，使得发声系统工作，实现屏幕发声。在线圈211接收到低频的第二驱动信号时，上述第二磁体22带动簧片222以及与簧片222相连接的中框11振动，使得振动系统工作，实现整机振动。
需要说明的是，上述是以图21所示的移动终端01为例，对移动终端01实现屏幕发声和整机振动的过程进行说明。图22、图23、图24、图25、图26以及图27同样可以实现屏幕发声和整机振动，在此不再一一赘述。
本申请实施例提供的移动终端01中的振子201与簧片222的设置方式可以采用上述任意一种示例所述的结构。
基于此，为了提高移动终端01在采用屏幕发声时，显示模组01振动的均匀性，和/或，移动终端01在采用整机振动时，整机振动的均匀性，该移动终端01可以包括至少两个上述振子201。
如图30所示，中框11的中间位置设置有用于嵌入电池的凹槽60。在此情况下，上述两个振子201分别位于该凹槽60的上、下两端，且避开天线的净空区设置。其中，中框11上可以开设有嵌入振子201的开孔(图中未示出)，也可以不设置上述开孔，将两个振子201直接设置于中框11上。
以中框11上可以开设有嵌入振子201的开孔为例，当在移动终端01能够实现屏幕发声的情况下，可以将振子201中的第一磁体21设置于显示模组10的背面，且与中框11上设置的开孔的位置正对。此外，将振子201中的第二磁体22的一部分位于上述开孔内，且固定于支架223上。支架223通过螺钉固定于中框11的第二表面B2上。
或者，当在移动终端01能够实现屏幕发声和整机振动的情况下，如图30所示，可以将振子201中的第一磁体21，例如，图7所示的主磁铁2210设置于显示模组10上，且与中框11上设置的开孔的位置正对。此外，将振子201中的第二磁体22，例如，图7所示的线圈211的一部分以及簧片222位于上述开孔内，且固定于支架223上。支架223通过螺钉固定于中框11的第二表面B2上。
由上述可知，将主磁铁2210设置于显示模组10上，线圈211设置于中框11上，可以避免由于线圈211发热而降低显示模组10的显示效果的问题。此外，还能够简化线圈211与CPU的电连接方式，且提高线圈211与CPU的电连接的可靠性。
或者，将振子201中的第一磁体21，例如，如图6所示的线圈211设置于显示模组10上，且与中框11上设置的开孔的位置正对。此外，将振子201中的第二磁体22，例如，图6所示的主磁铁2210的一部分以及簧片222位于上述开孔内，且固定于支架223上。支架223通过螺钉固定于中框11的第二表面B2上。
上述是以移动终端01包括两个振子201为例进行的说明。在该移动终端01具有一个振子201的情况下，可以将该振子201设置于移动终端01的上方，即用户在接听电话时，振子201能够位于用户耳朵的位置附近。从而使得移动终端01通过振子201实现屏幕发声时，用户在接听手机的过程中，耳朵所在位置屏幕发声的效果更好，语音信号更加清晰。
上述示例一至示例五中均是以主磁铁2210为单一磁铁为例进行的说明，上述示例一至示例五中的主磁铁2210也可以为采用磁铁阵列排布方式构成的磁体结构，例如海尔贝克阵列。主磁铁2210采用海尔贝克阵列时，其靠近线圈的一侧产生强磁场，其具体实现方式可参考如下示例六至示例十。
示例六
本示例中，如图31所示，上述第一磁体21为主磁铁2210，第二磁体22为线圈211。
主磁铁2210位于线圈211的导线绕成的闭合区域以外。主磁铁2210和线圈211相对的表面平行。线圈211的结构可以为环形，例如圆环线圈或方环线圈，具体结构可参考示例三。
本示例与示例四的不同之处在于，该主磁铁2210采用海尔贝克阵列(halbach array)。
海尔贝克阵列是一种新型的永磁体排列方式，是工程上的近似理想结构，目标是用最少量的磁体产生最强的磁场。通过将不同磁化方向的永磁体按照一定的顺序排列(例如，将磁铁径向式和平行式排列结合在一起)，如果忽略端部效应，并把周围的导磁材料的导磁率看做无穷大，那么上述永磁体结构最终可以形成单边磁场，即使得阵列一边的磁场显著增强，而另一边显著减弱。
需要说明的是，本申请实施例中海尔贝克阵列形成的单边磁场，应理解为海尔贝克阵列在该侧形成的是强磁场。
如图32所示，示意性地示出了常规永磁体和海尔贝克阵列的空间磁场分布，其中，图32中的箭头表示磁铁内部的磁场方向(即从S极到N极)。左图为常规永磁体的空间磁场分布，从图中可以看出，常规永磁体的周围有相同程度的磁场。右图为海尔贝克阵列的空间磁场分布，从图中可以看出，按照图中的排列方式形成的海尔贝克阵列在其一侧磁场强度显著提升，在另一侧的磁场强度显著减弱。应理解，图32中所示的海尔贝克阵列的空间磁场分布仅为示意性地说明海尔贝克阵列所产生的单边磁场，对本申请实施例不造成任何限定。
本申请实施例中，主磁铁2210所采用的海尔贝克阵列的结构可以如图33中所示。该主磁铁2210包括第一主磁铁部分2210a和第二主磁铁部分2210b，其中，第一主磁铁部分2210a可以呈圆形或椭圆形，作为主磁铁2210的中心磁体部分，第二主磁铁部分2210b可以呈圆环或椭圆环，作为主磁铁2210的周边磁体部分。
在一些其他的实施例中，第一主磁铁部分2210a还可以采用其他的形状，例如三角形、方形、多边形或其他规则或不规则的形状，第二主磁铁部分2210b还可以采用其他的形状，例如镂空三角形、镂空方形、镂空多边形或其他规则或不规则的形状，但应理解，第二主磁铁部分2210b的形状与第一主磁铁部分2210a的形状相适应，使得第一主磁铁部分2210a和第二主磁铁部分2210b排列后形成海尔贝克阵列。
图31中还示出了第一磁体21和第二磁体22的一种磁极设置方式。如图31所示，主磁铁2210和辅磁铁2211相对设置。主磁铁2210所包括的第一主磁铁部分2210a在靠近辅磁铁2211(即，靠近中框11)的一端设置为N极，远离辅磁铁2211(即，靠近显示模组10)的一端设置为S极，即第一主磁铁部分2210a的N极和S极沿Z向(即，纸面的上下方向)设置。主磁铁2210所包括的第二主磁铁部分2210b在靠近第一主磁铁部分2210a的一端设置为N极，远离第一主磁铁部分2210a(即，靠近第一隔磁罩51)的一端设置为S极，即第二主磁铁部分2210b的N极和S极沿纸面上与Z向垂直的方向(即，纸面的左右方向)设置，与第一主磁铁部分2210a的N极和S极的设置方向垂直。按照上述磁极设置方式形成的海尔贝克阵列的磁场分布可参考图32的右图中，左边三个磁铁的排列方式或右边三个磁铁的排列方式所形成的磁场。为了使振子201在非工作状态下处于平衡状态，在第一磁体21(例如图31所示的主磁铁2210)采用上述磁极设置方式的情况下，辅磁铁2211在靠近主磁铁2210(即，靠近显示模组10)的一端设置为N极，远离主磁铁2210(即靠近中框11)的一端设置为S极。
在此情况下，当振子201处于非工作状态下时，线圈211未通入电流，主磁铁2210产生的磁场与辅磁铁2211产生的磁场相互作用的示意图可以如图34所示。主磁铁2210的海尔贝克阵列产生的磁场可以与辅磁铁2211产生的磁场产生相斥的力。与示例四中的 情况类似，包裹主磁铁2210(包括第一主磁铁部分2210a和第二主磁铁部分2210b)的第一隔磁罩51会被主磁铁2210磁化而具有磁性，包裹辅磁铁2211的第二隔磁罩52会被辅磁铁2211磁化而具有磁性。在主磁铁2210、辅磁铁2211、第一隔磁罩51、第二隔磁罩52产生的磁场的相互作用下，第一磁体21(例如图31所示的主磁铁2210)和第二磁体22(例如图31所示的线圈211)可以处于相对平衡的状态，这样可以使得显示模组10保持平衡，增强第一磁体21与显示模组10的连接的可靠性，例如，避免显示模组10被第一磁体21牵引而发生变形或者第一磁体21与显示模组10脱离，该示例中辅磁铁2211与采用海尔贝克阵列的主磁铁2210之间的相互作用关系及有益效果同示例四中辅磁铁2211与采用单一磁铁的主磁铁2210时的相互作用关系和效果类似，具体参考上文描述，在此不再赘述。
在此情况下，当振子201处于工作状态下时，线圈211中通入电流，线圈211产生的磁场、主磁铁2210产生的磁场、以及辅磁铁2211产生的磁场相互作用的示意图可以如图35所示。线圈211产生的磁场可以与主磁铁2210产生的磁场产生相斥的力，同时辅磁铁2211产生的磁场与主磁铁2210产生的磁场也会产生相斥的力，在上述三个磁场的相互作用下，可以使得第一磁体21(例如图31所示的主磁铁2210)相对于第二磁体22(例如图31所示的线圈211)向远离第二磁体22的方向运动。
或者，当线圈211中通入的电流方向改变后，线圈211产生的磁场、主磁铁2210产生的磁场、以及辅磁铁2211产生的磁场相互作用的示意图可以如图36所示。线圈211产生的磁场可以与主磁铁2210产生的磁场产生相吸的力，虽然辅磁铁2211产生的磁场与主磁铁2210产生的磁场会产生相斥的力，但在上述三个磁场的相互作用下，可以使得第一磁体21(例如图31所示的主磁铁2210)相对于第二磁体22(例如图31所示的线圈211)向靠近第二磁体22的方向运动。
应理解，图35和图36中示出的磁场相互作用示意图应理解为线圈211通电后，线圈211产生的磁场、主磁铁2210产生的磁场、辅磁铁2211产生的磁场综合作用后的结果。
当振子201处于工作状态时，线圈211会接收到上述第一驱动信号，在线圈211产生的磁场、主磁铁2210产生的磁场、辅磁铁2211产生的磁场的综合作用下，使得线圈211和主磁铁2210之间能够相吸或相斥，从而使得第一磁体21(例如图31所示的主磁铁2210)相对于第二磁体22(例如图31所示的线圈211)沿Z方向，发生小幅度，且高频率的振动。从而通过上述第一磁体21带动显示模组10发生小幅度，且高频率的振动，以实现屏幕发声。
需要说明的是，当振子201处于非工作状态下时，线圈211未通入电流，第一磁体21和第二磁体22之间也可以存在不超过预设值的斥力(或吸力)。当振子201处于工作状态下时，线圈211中通入电流，第一磁体21和第二磁体22之间也可以一直是斥力(或吸力)，但由于通入电流的大小和方向发生变化，可以使第一磁体21和第二磁体22之间的斥力(或吸力)大小发生变化。当第一磁体21和第二磁体22之间的斥力较大(或吸力较小)时，第一磁体21和第二磁体22之间的距离较大，当第一磁体21和第二磁体22之间的斥力较小(或吸力较大)时，第一磁体21和第二磁体22之间的距离较小。这样随着电流变化，第一磁体21和第二磁体22之间的距离也发生变化，也可以使第一磁体21相对于第二磁体22沿Z方向，发生小幅度，且高频率的振动。通过第一磁体21带动显示模 组10发生小幅度，且高频率的振动，同样可以实现屏幕发声。在这种情况下，第一磁体21相对于第二磁体22之间的距离相对前一次二者间距离变小(或距离变大)，也可以等效为第一磁体21相对于第二磁体22之间相吸(或相斥)。
本申请实施例中，由于主磁铁2210采用海尔贝克阵列，所述主磁铁在与所述线圈相对的一侧产生单边磁场，使得主磁铁2210在靠近线圈211的一侧的磁场强度显著提升，在靠近显示模组10的一侧的磁场强度显著减弱。这样一来，当线圈211通电以后，线圈211产生的磁场与主磁铁2210产生的磁场相互作用时，主磁铁2210和线圈211受到的磁力显著增强，从而可以提高线圈211的振动强度或主磁铁2210的振动强度。
在此基础上，上述第一隔磁罩51和第二隔磁罩52采用导磁材料构成，以减少主磁铁2210与线圈211构成的磁场中磁力线的扩散，达到降低磁阻的目的。这样，外部泄露的磁场较少，线圈211产生的磁场与主磁铁2210产生的磁场的作用进一步增强，从而进一步提高线圈211的振动强度或主磁铁2210的振动强度。
另一方面，本申请实施例中，由于主磁铁2210采用海尔贝克阵列，可以使阵列一侧磁场强度显著提升，在达到与示例四中的相同性能(例如主磁铁2210的振动强度相同)的条件下，主磁铁2210和/或辅磁铁2211的厚度可以做的更薄，或者线圈211的匝数可以更少，从而可以节约振子201的厚度空间，有利于移动终端的厚度减薄。
另外，在本申请的一些实施例中，也可以将图31中的主磁铁2210和辅磁铁2211的磁极设置完全调换，即上述主磁铁2210中，第一主磁铁部分2210a和第二主磁铁部分2210b设置为N极的一端改为S极，设置为S极的一端改为N极，同时将辅磁铁2211设置为N极的一端改为S极，设置为S极的一端改为N极。在此种情况下，主磁铁2210仍然为海尔贝克阵列，其在靠近线圈211的一侧的磁场强度显著提升，在靠近显示模组10的一侧的磁场强度显著减弱。具有该结构的移动终端实现屏幕发声的过程同上所述，此处不再赘述。
此外，在本申请的一些实施例中，也可以将图31中的主磁铁2210与线圈211和辅磁铁2211的位置互换，主磁铁2210所采用的海尔贝克阵列的磁极无需变换，即上述第一磁体21为线圈211，第二磁体22为主磁铁2210。在此情况下，线圈211和辅磁铁2211固定于显示模组10的背面，而主磁铁2210穿过中框11上的开孔，固定于支架223的上表面。具有该结构的移动终端实现屏幕发声的过程同上所述，此处不再赘述。应理解，本申请实施例所述的主磁铁2210与线圈211和辅磁铁2211的位置互换，指的是将主磁铁2210的上下面翻转后固定于支架223的上表面，线圈211和辅磁铁2211上下翻转后固定于显示模组10的背面。以主磁铁2210为例，主磁铁2210互换位置后与支架223的上表面相接触的表面，与主磁铁2210互换前与显示模组10的背面相接触的表面相同，这样才能保证位置互换后，主磁铁2210在靠近辅磁铁2211和线圈211的一侧形成的是强磁。换句话说，主磁铁2210与线圈211和辅磁铁2211的位置互换，相当于是在显示模组10和中框11位置不变的情况下，将主磁铁2210与线圈211和辅磁铁2211沿垂直纸面的轴旋转180度。该种理解在主磁铁2210采用海尔贝克阵列的其他实施例中同样适用。另外，在主磁铁2210与辅磁铁2211相对一侧设置为同极的示例中，主磁铁2210与线圈211和辅磁铁2211的位置互换，相当于是在显示模组10和中框11位置不变的情况下，将主磁铁2210与线圈211和辅磁铁2211沿垂直纸面的轴旋转180度，这样保证位置互换以后，主磁铁 2210与辅磁铁2211相对一侧仍然为同极，且位置互换前主磁铁2210与辅磁铁2211相对一侧的极性和位置互换后主磁铁2210与辅磁铁2211相对一侧的极性相同，比如都是N极
在本申请实施例中，主磁铁2210靠近线圈211的一侧产生的是强磁，在靠近显示模组10的一侧产生的是弱磁。在本申请其他一些实施例中，可以将主磁铁2210所包括的第一主磁铁部分2210a的磁极调换且第二主磁铁部分2210b的磁极不变，或者将第二主磁铁部分2210b的磁极调换且第一主磁铁部分2210a的磁极不变，这样形成的海尔贝克阵列所产生的单边磁场的方向调换，即原来产生强磁的一侧此时产生的是弱磁，原来产生弱磁的一侧此时产生的是强磁。可以将这样的海尔贝克阵列作为第二磁体设置于中框11上，这样保证在第二磁体在靠近线圈的一侧产生的是强磁。
本申请实施例中，是以采用海尔贝克阵列的主磁铁2210包括两个不同磁化方向的永磁体(即第一主磁铁部分2210a和第二主磁铁部分2210b)为例进行的说明。在本申请的一些实施例中，采用海尔贝克阵列的主磁铁2210也可以包括其他数量例如3个、4个或更多的不同磁化方向的永磁体。
示例性的，图31中的主磁铁2210所采用的海尔贝克阵列的结构还可以如图37中所示。该主磁铁2210包括第一主磁铁部分2210a、第二主磁铁部分2210b和第三主磁铁部分2210c，其中，第一主磁铁部分2210a可以呈圆形或椭圆形，作为主磁铁2210的中心磁体部分，第二主磁铁部分2210b和第三主磁铁部分2210c可以呈圆环或椭圆环，作为主磁铁2210的周边磁体部分。应理解，第一主磁铁部分2210a、第二主磁铁部分2210b和第三主磁铁部分2210c还可以采用其他的形状，例如三角形、方形、多边形或其他规则或不规则的形状，只需保证第二主磁铁部分2210b的形状与第一主磁铁部分2210a的形状相适应，第三主磁铁部分2210c的形状与第二主磁铁部分2210b的形状相适应，使得第一主磁铁部分2210a、第二主磁铁部分2210b和第三主磁铁部分2210c排列后形成海尔贝克阵列即可。
图37中还示出了第一磁体21和第二磁体22的一种磁极设置方式。如图37所示，主磁铁2210和辅磁铁2211相对设置。主磁铁2210所包括的第一主磁铁部分2210a和第二主磁铁部分2210b的磁极设置与图31中的第一主磁铁部分2210a和第二主磁铁部分2210b的磁极设置方式相同，具体可参考图37、31和上述相关描述。主磁铁2210所包括的第三主磁铁部分2210c在靠近辅磁铁2211的一端设置为S极，远离辅磁铁2211(即，靠近显示模组10)的一端设置为N极，即第三主磁铁部分2210c的N极和S极沿Z向(即，纸面的上下方向)设置。为了使振子201在非工作状态下处于平衡状态，在第一磁体21(例如图37所示的主磁铁2210)采用上述磁极设置方式的情况下，辅磁铁2211在靠近主磁铁2210的一端设置为N极，远离主磁铁2210(即靠近中框11)的一端设置为S极。主磁铁2210采用如图37所示的海尔贝克阵列与采用如图31所示的海尔贝克阵列所能达到的效果类似，具体可参考上文描述，具有该结构的移动终端实现屏幕发声的过程也同上所述，此处不再赘述。
另外，在本申请的一些实施例中，也可以将图37中的主磁铁2210和辅磁铁2211的磁极设置完全调换(即N极均改为S极，S极均改为N极)，这样，主磁铁2210在靠近线圈211的一侧形成的仍然是强磁。在本申请的另一些实施例中，也可以将图37中的主磁铁2210与线圈211和辅磁铁2211的位置互换，其实现方式同上所述，具体可参考上文相关描述，此处不再赘述。
应理解，根据实际对磁场的需求以及振子201的安装空间的条件，本申请实施例中的海尔贝克阵列可以采用不同的排列方式，例如直线阵列，环形阵列以及其他排列方式形成的阵列，本申请实施例不做特殊限定。
示例七
上文提到，海尔贝克阵列产生的磁场为单边磁场，阵列一侧的磁场强度明显增强，阵列另一侧的磁场强度明显减弱。在图31或图37所示的移动终端中，主磁铁2210采用海尔贝克阵列时，在主磁铁2210与线圈211之间产生强磁，相应地，主磁铁2210在靠近显示模组10一侧的磁场强度很弱。在这种情况下，主磁铁2210产生的磁场对周边器件的干扰很低，因此可以采用厚度更薄的第一隔磁罩51来实现与示例六中的第一隔磁罩51相同甚至优于示例六中的第一隔磁罩51的导磁效果，或者可以直接省去第一隔磁罩51。
本示例中，如图38所示，上述第一磁体21为主磁铁2210，第二磁体22为线圈211。
主磁铁2210位于线圈211的导线绕成的闭合区域以外。主磁铁2210和线圈211相对的表面平行。线圈211的结构可以为环形，例如圆环线圈或方环线圈，具体结构可参考示例三。
与示例六的不同之处在于，该移动终端不包括对主磁铁2210产生的磁场有隔磁作用的第一隔磁罩51，但仍保留对线圈211产生的磁场有隔磁作用的第二隔磁罩52。
在这种情况下，由于省去了第一隔磁罩51，主磁铁2210可以通过胶层粘接的方式直接固定于支撑片212的下表面上，支撑片212的上表面固定安装于显示模组10靠近中框11的一侧表面上，实现上述第一磁体21通过支撑片212与显示模组10相连接。
这样，主磁铁2210采用海尔贝克阵列时，不仅可以增强主磁铁2210产生的磁场与线圈211产生的磁场的相互作用，从而增大主磁铁2210的振动强度，同时由于省去了第一隔磁罩51，还可以节约振子201的厚度空间，有利于移动终端的厚度减薄。
当然，省去了设置第一隔磁罩51的空间，还可以换取更大的磁铁空间，例如增大主磁铁2210和/或辅磁铁2211的尺寸，或者增大线圈211的匝数，从而进一步增强主磁铁2210产生的磁场与线圈211产生的磁场的相互作用，从而增大主磁铁2210的振动强度。
进一步地，还可以省去支撑片212，主磁铁2210可以通过胶层粘接的方式直接固定于显示模组10上，实现上述第一磁体21与显示模组10相连接。
此外，在本申请的一些实施例中，也可以将图38中的主磁铁2210与线圈211和辅磁铁2211以及第二隔磁罩52的位置互换，即上述第一磁体21为线圈211，第二磁体22为主磁铁2210。在此情况下，第二隔磁罩52、线圈211和辅磁铁2211固定于显示模组10的背面，由于省去了第一隔磁罩51，主磁铁2210穿过中框11上的开孔，可以通过胶层直接固定于支架223的上表面。具有该结构的移动终端实现屏幕发声的过程同上所述，此处不再赘述。
示例八
本示例中，如图39所示，上述第一磁体21为主磁铁2210，第二磁体22为线圈211。
主磁铁2210位于线圈211的导线绕成的闭合区域以外。主磁铁2210和线圈211相对的表面平行。线圈211的结构可以为环形，例如圆环线圈或方环线圈，具体结构可参考示例三。
与示例六的不同之处在于，如图39所示，该振子201还包括位于辅磁铁2211之上的 导磁片2212。
导磁片2212设置于辅磁铁2211之上，且与辅磁铁2211接触。在此情况下，如图39所示，当辅磁铁2211通过支架223设置于中框11上时，该导磁片2212设置于辅磁铁2211靠近第一磁体21(如图39所示的主磁铁2210)(即，远离中框11)的一侧的表面上。
导磁片2212可以通过胶层粘接的方式直接固定于辅磁铁2211上。
导磁片2212的形状可以为圆形、方形、三角形、多边形以及其他规则或不规则图形。在一些实施例中，导磁片2212的形状可以与辅磁铁2211的截面图形相同。导磁片2212可以是片状、也可以是块状、或罩形，本申请实施例不做特殊限定。
导磁片2212的作用主要是导磁，使磁力更集中，从而增加通过线圈211的磁通量，增大线圈211的磁感应强度，从而增大线圈211与主磁铁2210之间的作用力，增大主磁铁2210的振动强度。具体而言，参考图35和图36，线圈211通入电流后，横向通过线圈211的磁通量包括主磁铁2210产生的磁通量、辅磁铁2211产生的磁通量、第一隔磁罩51被磁化后产生的磁通量、以及第二隔磁罩52被磁化后产生的磁通量，在辅磁铁2211之上设置导磁片2212，可以使主磁铁2210、辅磁铁2211、第一隔磁罩51和第二隔磁罩52的磁感线更顺，从而增大横向的通过线圈211的磁通量。在面积一定的情况下，横向通过线圈211的磁通量增大，则线圈211的磁感应强度增大，线圈211与主磁铁2210之间的作用力增大，这样可以增大主磁铁2210的振动强度，从而产生更大的推动力带动显示模组10振动，从而实现屏幕发声，并可以增大屏幕发声的声音大小。
该示例中，导磁片2212可以设置于辅磁铁2211远离中框(即，靠近显示模组10)的一侧表面上，也可以设置于主磁铁2210远离显示模组10的一侧的表面上。
此外，在本申请的一些实施例中，也可以将图39中的第一隔磁罩51去掉，则线圈211通电后，横向通过线圈211的磁通量包括主磁铁2210产生的磁通量、辅磁铁2211产生的磁通量、以及第二隔磁罩52被磁化后产生的磁通量。
另外，在本申请的一些实施例中，也可以将图39中的主磁铁2210与线圈211和辅磁铁2211的位置互换，即上述第一磁体21为线圈211，第二磁体22为主磁铁2210。在此情况下，线圈211和辅磁铁2211固定于显示模组10的背面，而主磁铁2210穿过中框11上的开孔，可以通过胶层直接固定于支架223的上表面。导磁片2212设置主磁铁2210远离中框11的一侧表面，或者位于辅磁铁2211远离显示模组10的一侧表面。
具有该结构的移动终端实现屏幕发声的过程同上所述，此处不再赘述。
上述示例六、示例七和示例八中，均是以主磁铁2210采用海尔贝克阵列为例进行的说明，在本申请的一些实施例中，辅磁铁2211也可以采用海尔贝克阵列。当辅磁铁2211采用海尔贝克阵列时，其实现方式与主磁铁2210采用海尔贝克阵列类似，其在靠近主磁铁2210的一侧磁场显著增强，在靠近中框11的一侧磁场显著减弱，具体可参考上文描述，在此不再赘述。当辅磁铁2211进一步采用海尔贝克阵列时，可以进一步增大第一磁体21与第二磁体22之间的磁场的相互作用，从而增大主磁铁2210的振动强度或线圈221的振动强度。
示例九
本示例中，如图40所示，上述第一磁体21为线圈211，第二磁体22为主磁铁2210。
主磁铁2210的一部分嵌入线圈211的导线绕成的闭合区域中。线圈211的结构可以 为环形，例如圆环线圈或方环线圈，具体结构可参考示例三。
与示例一中的图6所示的移动终端的不同之处在于，如图40所示，主磁铁2210采用海尔贝克阵列，为了对上述主磁铁2210进行支撑，振子201还包括磁碗226。该磁碗226的上表面与主磁铁2210的下表面通过胶层固定连接，磁碗226的下表面穿过中框11上的开孔，通过胶层固定于支架223的上表面。
构成该磁碗226的材料可以为不锈钢。在此情况下，上述磁碗226可以具有隔磁的作用，以减小主磁铁2210和线圈211产生的磁场对移动终端01中的其他器件产生不良影响的几率。由于该示例中主磁铁2210采用海尔贝克阵列，其在靠近支架223一侧的磁场强度很弱，因此相比主磁铁2210采用单一磁铁时，磁碗226的厚度可以减薄，隔离线圈211产生的磁场即可。
该示例中，主磁铁2210包括第一主磁铁部分2210a和第二主磁铁部分2210b。第一主磁铁部分2210a在靠近显示模组10的一端设置为N极，远离显示模组10(即，靠近支架223)的一端设置为S极。第二主磁铁部分2210b在靠近第一主磁铁部分2210a的一端设置为N极，远离第一主磁铁部分2210a(即，靠近线圈211)的一端设置为S极。
换句话说，本申请实施例中的主磁铁2210的设置方式，相当于将示例六中的图31所示的海尔贝克阵列上下翻转后设置到磁碗226的上表面，只是使图31所示的海尔贝克阵列形成的磁场在靠近显示模组10一侧显著增强，在靠近支架223一侧显著减弱。
当上述线圈211，接收到上述第一驱动信号(即中、高频信号)时，线圈211在上述第一驱动信号的作用下，产生一个交变的磁场。线圈211产生磁场的大小和方向随着第一驱动信号的变化而变化。主磁铁2210采用海尔贝克阵列，会产生一个大小和方向不变的恒定的磁场。因此，在上述两个磁场的相互作用下，可以使得线圈211沿上述Z方向，切割磁感线上、下小幅度且高频率的振动，进而可以带动显示模组10沿相同的方向上、下小幅度且高频率振动，显示模组10作为振膜推动空气产生声音。
本申请实施例中，主磁铁2210采用海尔贝克阵列，可以使得主磁铁2210在靠近线圈211的一侧的磁场强度显著提升，这样一来，当线圈211通电以后，线圈211产生的磁场与主磁铁2210产生的磁场相互作用时，主磁铁2210和线圈211受到的磁力显著增强，从而可以提高线圈211的振动强度。
另一方面，在达到与示例一中的相同性能(例如线圈211的振动强度相同)的条件下，主磁铁2210的厚度可以做的更薄，或者线圈211的匝数可以更少，或者磁碗226的厚度可以减少，从而可以节约振子201的厚度空间，有利于移动终端的厚度减薄。
可选地，在该示例所示的移动终端的基础上，在主磁铁2210之上也可以设置如示例八中所示的导磁片2212，导磁片2212位于主磁铁2210远离中框11(即远离支架223)的一侧表面。导磁片2212作用与上述相同，可以增大线圈211与主磁铁2210之间的作用力，达到增大线圈211的振动强度的目的。
另外，在本申请的一些实施例中，也可以将图40中的主磁铁2210的磁极设置完全调换。在此种情况下，主磁铁2210仍然为海尔贝克阵列，其在靠近线圈211的一侧的磁场强度显著提升，在靠近显示模组10的一侧的磁场强度显著减弱。具有该结构的移动终端实现屏幕发声的过程同上所述，此处不再赘述。
此外，在本申请的一些实施例中，也可以将图40中的主磁铁2210与线圈211的位置 互换，即上述第一磁体21为主磁铁2210，第二磁体22为线圈211。在此情况下，主磁铁2210固定于显示模组10的背面，线圈211穿过中框11上的开孔，固定于支架223的上表面。此时，主磁铁2210采用海尔贝克阵列，在靠近中框11的一侧产生强磁，能够提高主磁铁2210的振动强度。此种情况下，导磁片2212位于主磁铁2212远离显示模组10的一侧表面。具有该结构的移动终端实现屏幕发声的过程同上所述，此处不再赘述。
示例十
本示例中，如图41所示，上述第一磁体21为线圈211，第二磁体22为主磁铁2210。
主磁铁2210的一部分嵌入线圈211的导线绕成的闭合区域中。线圈211的结构可以为环形结构，例如圆环线圈或方环线圈。
主磁铁2210可以通过支架223与中框11连接，具体实现方式可参考上述示例相关描述，在此不再一一赘述。
与示例十不同的是，示例十中的磁碗226的形状可以是如图40中所示，磁碗226的边沿的延伸方向与磁碗226的底面平行，磁碗226的高度较小。在该示例中，磁碗226的形状如图41中所示，磁碗226的边沿的延伸方向与磁碗226的底面垂直，磁碗226的高度较大，其底壁和边沿可以形成一隔磁空间。此时，磁碗226可以将线圈221的部分和主磁铁2210均包围在该隔磁空间中。被磁碗226边沿包围的线圈211的部分是嵌入磁碗226边沿与主磁铁2210之间的间隙中的。
与上述示例均不同的是，该示例中，移动终端包括球顶213和振膜折环70。球顶213固定于显示模组10靠近中框11的一侧表面上。球顶213的上表面与显示模组10相连接，下表面与线圈211相连接。
球顶213固定于显示模组10上，用于带动显示模组10振动发声。振膜折环70用于保证球213顶沿Z向运动，限制在垂直Z向运动的。
当上述线圈211，接收到上述第一驱动信号(即中、高频信号)时，线圈211在上述第一驱动信号的作用下，产生一个交变的磁场。线圈211产生磁场的大小和方向随着第一驱动信号的变化而变化。主磁铁2210采用海尔贝克阵列，会产生一个大小和方向不变的恒定的磁场。因此，在上述两个磁场的相互作用下，可以使得线圈211沿上述Z方向，切割磁感线上、下小幅度且高频率的振动。球顶213与线圈211相连，因而线圈211会带动球顶沿Z向上、下小幅度且高频率振动，同时振膜折环70也会限制球顶213沿垂直Z向的方向运动。进而球顶213可以带动显示模组10沿相同的方向上、下小幅度且高频率振动，显示模组10作为振膜推动空气产生声音。
本申请实施例中，主磁铁2210采用海尔贝克阵列，可以使得主磁铁2210在靠近线圈211的一侧的磁场强度显著提升，这样一来，当线圈211通电以后，线圈211产生的磁场与主磁铁2210产生的磁场相互作用时，主磁铁2210和线圈211受到的磁力显著增强，从而可以提高线圈211的振动强度，优化球顶213对屏幕的推力，提升屏幕发声效果。可选地，示例一至示例五中的实施例中(如图21至27所示的移动终端中)，主磁铁2210均可以采用示例六至示例十中所述的海尔贝克阵列，其具体实现方式以及具有海尔贝克阵列的移动终端实现屏幕发声的过程如上所述，在此不再一一赘述。
本申请实施例提供的振子201，包括第一磁体21和第二磁体22，第一磁体21设置于显示模组10的背面，第二磁体22设置于中框11上，且第一磁体21和第二磁体22的位 置相对设置，这样的结构使得振子201应用于移动终端上时更易堆叠，可以解决在移动终端布板空间不足的情况下也能实现屏幕发声。
需要说明的是，海尔贝克阵列可以增强单边磁场，同时削弱另一侧的磁场，在应用中，可以根据实际的磁场需求和移动终端的安装空间等条件约束，对海尔贝克阵列中的磁铁之间的组合关系、磁铁的大小尺寸及其组合进行相应地设计。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”“相连”“连接”应做广义理解，例如可以是固定连接，也可以是可拆卸连接，或一体式连接；可以是机械连接，也可以是电连接；可以是直接连接，也可以是通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中具体含义。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (16)

  1. 一种移动终端，其特征在于，包括中框，以及设置于所述中框两侧的壳体和显示模组；
    所述显示模组与所述中框连接，且所述显示模组与所述中框之间形成一容纳空间；
    所述移动终端还包括第一磁体和第二磁体，所述第一磁体和所述第二磁体的至少一部分设置于所述容纳空间中；
    所述第一磁体设置于所述显示模组的背面，所述第二磁体设置于所述中框上，且所述第一磁体与所述第二磁体的位置相对设置；
    其中，所述第一磁体为线圈，所述第二磁体为主磁铁；或者，所述第一磁体为主磁铁，所述第二磁体为线圈；
    所述主磁铁为海尔贝克阵列，所述主磁铁在与所述线圈相对的一侧产生单边磁场。
  2. 根据权利要求1所述的移动终端，其特征在于，所述主磁铁的一部分嵌入所述线圈的导线绕成的闭合区域中。
  3. 根据权利要求2所述的移动终端，其特征在于，所述移动终端还包括至少一个辅磁铁；
    所述辅磁铁与所述主磁铁位于同一侧，且所述辅磁铁与所述主磁铁之间具有间隙；
    所述线圈的一部分位于所述辅磁铁和所述主磁铁之间的间隙内。
  4. 根据权利要求2或3所述的移动终端，其特征在于，所述移动终端还包括华司；
    在所述第一磁体为主磁铁的情况下，所述华司位于所述主磁铁远离所述显示模组的一侧表面；
    或者，在所述第二磁体为主磁铁的情况下，所述华司位于所述主磁铁远离所述中框的一侧表面。
  5. 根据权利要求2至4中任一项所述的移动终端，其特征在于，所述移动终端还包括用于承载所述主磁铁的磁碗；
    在所述第二磁体为主磁铁的情况下，所述磁碗位于所述主磁铁远离所述显示模组的一侧表面。
  6. 根据权利要求1所述的移动终端，其特征在于，所述主磁铁位于所述线圈的导线绕成的闭合区域以外；
    所述主磁铁和所述线圈相对的表面平行。
  7. 根据权利要求6所述的移动终端，其特征在于，所述移动终端还包括一个辅磁铁；
    所述辅磁铁与所述线圈位于同一侧，且所述辅磁铁嵌入所述线圈的导线绕成的闭合区域中。
  8. 根据权利要求7所述的移动终端，其特征在于，所述辅磁铁与所述主磁铁在相对的一侧的磁铁极性为同极。
  9. 根据权利要求6至8中任一项所述的移动终端，其特征在于，所述移动终端还包括导磁片；
    在所述第一磁体为主磁铁的情况下，所述导磁片位于所述主磁铁远离所述显示模组的 一侧表面，或者位于所述辅磁铁远离所述中框的一侧表面；
    或者，在所述第二磁体为主磁铁的情况下，所述导磁片位于所述主磁铁远离所述中框的一侧表面，或者位于所述辅磁铁远离所述显示模组的一侧表面。
  10. 根据权利要求6至9中任一项所述的移动终端，其特征在于，所述移动终端还包括第二隔磁罩；
    所述线圈位于所述第二隔磁罩内，且所述线圈中，至少除了与所述主磁铁相对设置的一侧表面以外，其余表面被所述第二隔磁罩包裹。
  11. 根据权利要求10所述的移动终端，其特征在于，所述移动终端还包括第一隔磁罩；
    所述主磁铁位于所述第一隔磁罩内，且所述主磁铁中，除了与所述线圈相对设置的一侧表面以外，其余表面被所述第一隔磁罩包裹。
  12. 根据权利要求1至11中任一项所述的移动终端，其特征在于，所述主磁铁包括第一主磁铁部分和第二主磁铁部分，所述第二主磁铁部分呈环形，嵌套于所述第一主磁铁部分上；
    所述第二主磁铁部分的磁极方向与所述第一主磁铁部分的磁极方向垂直。
  13. 根据权利要求1至12中任一项所述的移动终端，其特征在于，所述移动终端还包括支架；
    所述支架设置于所述中框远离所述显示模组的一侧表面，且与所述中框相连接；
    所述中框上设置有开孔；
    所述第二磁体的至少一部分位于所述中框上的开孔内；
    所述第二磁体穿过所述中框上的开孔，设置于所述支架上。
  14. 根据权利要求13所述的移动终端，其特征在于，所述移动终端还包括簧片和支撑块；
    所述簧片以及所述支撑块位于所述中框上的开孔内；
    所述簧片位于所述第二磁体与所述支架之间，且所述簧片与所述第二磁体相连接；
    所述支撑块设置于所述簧片和支架之间，且所述支撑块的上、下表面分别与所述簧片和支架相连接。
  15. 根据权利要求1至14中任一项所述的移动终端，其特征在于，所述移动终端还包括簧片和支撑块；
    所述簧片、所述支撑块、所述第一磁体和所述第二磁体均位于所述容纳空间内；
    所述簧片位于所述第二磁体与所述中框之间，且所述簧片与所述第二磁体相连接；
    所述支撑块设置于所述簧片和中框之间，且所述支撑块的上、下表面分别与所述簧片和中框相连接。
  16. 根据权利要求1至15中任一项所述的移动终端，其特征在于，所述移动终端还包括支撑片；
    所述支撑片的上表面与所述显示模组相连接；
    所述支撑片的下表面与所述第一磁体相连接；
    其中，所述支撑片上表面的面积大于，所述第一磁体靠近所述支撑片的一侧表面的面积。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023030636A1 (en) * 2021-09-03 2023-03-09 Huawei Technologies Co., Ltd. An audio generating arrangement for an electronic device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114512298A (zh) * 2022-02-18 2022-05-17 重庆交通大学 用于增强接受信号的磁体装置、接收信号增强装置及激光结合力检测装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104753111A (zh) * 2013-12-31 2015-07-01 深圳富泰宏精密工业有限公司 电子装置
US20190004566A1 (en) * 2017-07-03 2019-01-03 Lg Display Co., Ltd. Display apparatus
CN110049416A (zh) * 2019-04-23 2019-07-23 歌尔股份有限公司 振动发声装置以及电子产品
CN110113696A (zh) * 2019-04-23 2019-08-09 歌尔股份有限公司 振动发声装置以及电子产品
CN110177318A (zh) * 2019-05-07 2019-08-27 歌尔股份有限公司 振动发声装置以及电子产品

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007300578A (ja) * 2006-05-08 2007-11-15 Goto Denshi Kk ディスプレイ装置および電子機器
GB2508763A (en) * 2011-11-09 2014-06-11 Yeil Electronics Co Ltd Securing structure of sound output mechanism and sound processing means of mobile device capable of outputting visual and sound signals
US9894442B2 (en) * 2015-01-16 2018-02-13 Apple Inc. Halbach array audio transducer
JP2019063695A (ja) * 2017-09-28 2019-04-25 日本電産コパル株式会社 振動アクチュエータ
CN110087172B (zh) * 2019-03-25 2021-10-15 华为技术有限公司 一种屏幕发声设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104753111A (zh) * 2013-12-31 2015-07-01 深圳富泰宏精密工业有限公司 电子装置
US20190004566A1 (en) * 2017-07-03 2019-01-03 Lg Display Co., Ltd. Display apparatus
CN110049416A (zh) * 2019-04-23 2019-07-23 歌尔股份有限公司 振动发声装置以及电子产品
CN110113696A (zh) * 2019-04-23 2019-08-09 歌尔股份有限公司 振动发声装置以及电子产品
CN110177318A (zh) * 2019-05-07 2019-08-27 歌尔股份有限公司 振动发声装置以及电子产品

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4024897A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023030636A1 (en) * 2021-09-03 2023-03-09 Huawei Technologies Co., Ltd. An audio generating arrangement for an electronic device

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