WO2021218841A1 - 扬声器及电子设备 - Google Patents
扬声器及电子设备 Download PDFInfo
- Publication number
- WO2021218841A1 WO2021218841A1 PCT/CN2021/089549 CN2021089549W WO2021218841A1 WO 2021218841 A1 WO2021218841 A1 WO 2021218841A1 CN 2021089549 W CN2021089549 W CN 2021089549W WO 2021218841 A1 WO2021218841 A1 WO 2021218841A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vibrating plate
- voltage
- electro
- dome
- ion
- Prior art date
Links
- 230000004308 accommodation Effects 0.000 abstract 2
- 150000001768 cations Chemical class 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 3
- 239000003456 ion exchange resin Substances 0.000 description 3
- 229920003303 ion-exchange polymer Polymers 0.000 description 3
- 239000005518 polymer electrolyte Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- 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
- H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
- G06F1/1605—Multimedia displays, e.g. with integrated or attached speakers, cameras, microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
-
- 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
-
- 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
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
-
- 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
- H04R2400/00—Loudspeakers
- H04R2400/03—Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones
-
- 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
- H04R2499/01—General technical reviews, overviews, tutorials
-
- 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 invention relates to the field of electronic devices, in particular to a speaker and electronic equipment.
- the realization principle of mainstream speakers is: when a current-carrying conductor passes through a magnetic field, it will receive a force.
- the force is perpendicular to the direction of the current and the magnetic field, and the force is proportional to the current, wire length, and magnetic flux density.
- the speaker includes a magnetic steel, a voice coil and a diaphragm.
- the voice coil receives an alternating driving force, which generates an alternating motion, which drives the diaphragm to vibrate and repeatedly pushes the air to make the speaker sound.
- the speaker since the speaker includes a magnet and a coil, the magnetic field generated by the magnet and the coil will interfere with the devices around the speaker.
- the embodiments of the present invention provide a speaker and electronic equipment to solve the problem that the magnetic field generated by the magnetic steel and coil of the speaker will interfere with the devices around the speaker.
- the embodiment of the present invention provides a loudspeaker including a weight body, and a lower shell, a middle shell, an electro-vibrating plate, and a dome that are arranged in sequence;
- the lower shell, the middle shell, and the electro-vibrating plate cooperate to form an accommodating cavity, and the weight body is arranged in the accommodating cavity and connected to the first surface of the electro-vibrating plate ;
- the dome is arranged on the second surface of the electro-vibration plate away from the weight body;
- the electro-vibrating piece drives the dome to move.
- the electro-vibration piece is a ring-shaped structural member with a first through hole, and the dome covers the first through hole.
- the weight body is an annular structural member with a second through hole, and the first through hole and the second through hole are relatively distributed.
- the electro-induced vibrating plate is an ion-conducting vibrating plate
- the ion-conducting vibrating plate drives the dome to move in the first direction;
- the ion-conducting vibrating plate drives the dome to move in the second direction;
- first voltage and the second voltage have opposite polarities, and the first direction is opposite to the second direction.
- the ion-conducting vibrating plate drives the dome to move a first distance in a first direction;
- the ion-conducting vibrating plate drives the dome to move a second distance in the first direction;
- the first voltage and the third voltage have the same polarity, and the third voltage is greater than the first voltage, and the first distance is different from the second distance.
- the ion-conducting vibrating plate drives the dome to move in the first direction at a first rate
- the ion-conducting vibrating plate drives the dome to move in the first direction at a second rate
- the first voltage and the third voltage have the same polarity, and the third voltage is greater than the first voltage, and the first rate is different from the second rate.
- the electro-vibration plate has a first area, a second area, and a third area;
- the weight body is arranged in a first area of the electro-vibration plate, the electro-vibration plate is connected to the middle shell through the second area, and the third area is located between the first area and the Between the second area;
- the third area of the electro-vibration plate is recessed in a direction toward the lower case, or the third area of the electro-vibration plate is recessed in a direction away from the lower case.
- the middle shell is provided with a third through hole, and there is a gap between the weight body and the middle shell.
- the third through hole is a countersunk hole, and the countersunk of the countersunk hole is located at an end of the middle shell away from the dome. In the direction of movement of the dome, the dome The projection of the counterweight body and the counterweight are both located within the projection of the countersunk hole.
- the height of the counterweight body is greater than half of the height of the countersunk hole, and the height of the counterweight body is smaller than the height of the countersunk hole.
- the above-mentioned speaker further includes a vibrating plate holder, the vibrating plate holder is arranged around the electro-vibrating plate, and the electro-vibrating plate is fixedly connected to the middle shell through the vibrating plate holder.
- An embodiment of the present invention also provides an electronic device, including the aforementioned speaker.
- the speaker includes a counterweight, and a lower shell, a middle shell, an electro-vibrating plate and a dome arranged in sequence; the lower shell, the middle shell, and the electro-vibrating plate cooperate to form an accommodating cavity
- the weight body is arranged in the accommodating cavity and is connected to the first surface of the electro-vibration plate; the spherical top is arranged on the second surface of the electro-vibration plate away from the weight body. Surface; when a voltage is applied to the electro-vibration plate, the electro-vibration plate drives the dome to move.
- the structure of the above speaker eliminates the magnetic steel and coil structure, thereby avoiding magnetic field interference to the circuits and devices around the speaker, and purifying the working environment of the circuits and devices around the speaker; at the same time, the above speaker has a simple structure, a small footprint, and can be used. Meet the needs of thinner electronic equipment.
- FIG. 1 is one of the structural schematic diagrams of a speaker provided by an embodiment of the present invention
- Fig. 2 is a second structural diagram of a loudspeaker provided by an embodiment of the present invention.
- FIG. 3 is a schematic diagram of a part of the structure of a speaker provided by an embodiment of the present invention.
- Figure 4 is one of the schematic diagrams of cation distribution of the vibrating plate provided by the embodiment of the present invention.
- Fig. 5 is the second schematic diagram of the cation distribution of the vibrating plate provided by the embodiment of the present invention.
- this embodiment provides a speaker, including a weight body 1, and a lower shell 2, a middle shell 3, an electro-vibrating plate 4, and a dome 5 arranged in sequence; the lower shell 2, the The middle shell 3 and the electro-vibration plate 4 cooperate to form an accommodating cavity, and the weight body 1 is arranged in the accommodating cavity and is connected to the first surface of the electro-vibration plate 4; The dome 5 is arranged on the second surface of the electro-vibration plate 4 facing away from the weight body 1; when a voltage is applied to the electro-vibration plate 4, the electro-vibration plate 4 drives the dome 5 move.
- the lower shell 2, the middle shell 3, and the electro vibrating plate 4 cooperate to form an accommodating cavity.
- the first surface is connected.
- an adhesive can be used to bond the weight body 1 with the first surface, so that the weight body 1 is suspended in the containing cavity.
- the electro-vibration plate 4 drives the dome 5 to move, it will also drive the weight body. 1 moves together, and the counterweight 1 is used to adjust the resonant frequency of the speaker.
- the electro-vibrating plate 4 drives the dome 5 to move, thereby driving the air around the dome 5 to vibrate and produce sound.
- the speaker includes a counterweight 1, and a lower shell 2, a middle shell 3, an electro-vibrating plate 4, and a dome 5 arranged in sequence; the lower shell 2, the middle shell 3, and the electro-vibration
- the sheet 4 cooperates to form an accommodating cavity, and the weight body 1 is arranged in the accommodating cavity and connected with the first surface of the electro-vibrating sheet 4; the spherical top 5 is arranged in the electro-vibrating sheet 4
- the vibrating plate 4 is away from the second surface of the weight body 1; when a voltage is applied to the electro-vibrating plate 4, the electro-vibrating plate 4 drives the dome 5 to move.
- the structure of the speaker in this embodiment eliminates the magnetic steel and coil structure, thereby avoiding magnetic field interference to the circuits and devices around the speaker, and purifying the working environment of the circuits and devices around the speaker; at the same time, the speaker in this embodiment
- the structure is simple, and the space occupied is small, which can meet the needs of thinning electronic equipment.
- the electro-induced vibrating plate 4 is an ion-conducting vibrating plate, and when the voltage applied to the ion-conducting vibrating plate is a first voltage, the ion-conducting vibrating plate drives the dome 5 to move in a first direction When the voltage applied to the ion-conducting vibrating plate is a second voltage, the ion-conducting vibrating plate drives the dome 5 to move in a second direction; wherein, the first voltage and the second voltage pole In contrast, the first direction is opposite to the second direction, that is, the first direction and the second direction are opposite to each other.
- the The ion conduction vibrating plate drives the dome 5 to move alternately in the first direction and the second direction, thereby driving the air around the dome 5 to vibrate and produce sound.
- the ion-conducting vibrating plate is a composite material actuating element, such as a soft polymer actuating element.
- the ion-conducting vibrating plate includes a first electrode layer, an ion exchange resin layer, and a second electrode layer that are sequentially stacked, and the ion exchange resin layer contains a polymer electrolyte.
- the ion-conducting vibrating piece can form the first electrode layer and the second electrode layer by electroless copper plating or gold plating on two opposite surfaces of the ion exchange resin, and increase the displacement performance by increasing the electrode surface area.
- a voltage to the vibrating plate 4 the cations in the polymer electrolyte move to the cathode side, causing a difference in swelling between the front and back of the vibrating plate 4. This difference can cause the vibrating plate 4 to deform and alternately change the amount of swelling applied to the vibrating plate 4.
- the direction of the voltage can make the direction of deformation of the vibrating plate 4 change alternately, thereby generating vibration.
- the vibration amplitude can be 0.1 mm to 10 mm, and the vibration amplitude can be controlled by setting the thickness of the vibrating plate 4 and adjusting the current through the vibrating plate 4.
- Figure 4 shows a schematic diagram of the distribution of cations in the vibrating plate 4 when a positive current flows through the vibrating plate 4, where the cations move to the cathode side of the vibrating plate 4 (that is, the lower side of the vibrating plate 4 in Figure 4), and the vibrating plate 4 It moves upward, and drives the dome 5 to move upward.
- a in FIG. 4 shows the moving direction of the vibrating plate 4.
- Figure 5 shows a schematic diagram of the distribution of cations in the vibrating plate 4 when a negative direction current passes through the vibrating plate 4, where the cations move to the cathode side of the vibrating plate 4 (that is, the upper side of the vibrating plate 4 in Figure 5), and the vibrating plate 4 It moves downward, and drives the dome 5 to move downward.
- B in FIG. 5 shows the moving direction of the vibrating plate 4.
- the ion-conducting vibrating piece By applying a voltage to the ion-conducting vibrating piece, the cations in the polymer electrolyte of the ion-conducting vibrating piece move to the cathode side, causing a difference in swelling between the front and back sides, and causing the ion-conducting vibrating piece to deform.
- an alternating current is applied to the ion-conducting vibrating plate, the ion-conducting vibrating plate will drive the dome 5 to reciprocate, thereby driving the air around the dome 5 to vibrate and produce sound.
- the temperature is monitored by a temperature sensor in the electronic device. After reaching the temperature point where the heat needs to be dissipated, the electronic device outputs a low-power electrical signal of about 0.05W to the vibrating plate 4.
- the energized vibrating plate 4 can vibrate back and forth, thereby driving the surrounding vibration to produce sound, thereby reminding the user that the temperature of the electronic equipment is relatively high, and heat dissipation is required to avoid damage to the equipment.
- the temperature is monitored by the temperature sensor in the electronic device. After reaching the temperature point that requires heat dissipation, the electronic device outputs a low-power electrical signal of about 0.05W to the vibrating plate 4, and the vibrating plate is powered on. 4 It can vibrate back and forth, thereby driving the surrounding vibration to produce sound, and driving the surrounding air to flow for heat dissipation.
- the ion-conducting vibrating plate drives the dome 5 to move a first distance in a first direction;
- the ion-conducting vibrating plate drives the dome 5 to move a second distance in the first direction;
- the first voltage and the third voltage have the same polarity, and the third voltage is greater than the first voltage, the first distance is different from the second distance, for example, the second distance may be Greater than the first distance.
- the dome 5 can be driven to move a larger distance by applying a larger voltage to the ion conduction vibrating plate; when the dome 5 is required to move a smaller distance, the ion conduction vibrating plate can be moved by A larger voltage is applied to drive the dome 5 to move a smaller distance.
- the magnitude of the voltage applied to the ion-conducting vibrating plate and the moving distance of the dome 5.
- the voltage applied to the ion-conducting vibrating plate can be determined according to the corresponding relationship. size.
- the second distance may be smaller than the first distance.
- the ion-conducting vibrating plate drives the dome 5 to move in the first direction at a first rate
- the ion-conducting vibrating plate drives the dome 5 to move in the first direction at a second rate;
- the first voltage and the third voltage have the same polarity, and the third voltage is greater than the first voltage, and the first rate is different from the second rate.
- the second rate may be less than the first rate.
- the corresponding relationship there is a corresponding relationship between the magnitude of the voltage applied to the ion-conducting vibrating plate and the moving speed of the dome 5. In the case of determining the speed at which the dome 5 needs to move, the corresponding relationship can be used to determine the The voltage of the vibrating plate.
- the loudspeaker may include two working modes: a sounding mode and a vibration mode.
- the voltage applied to the ion-conducting vibrating plate may be a fourth voltage with alternating polarity.
- the fourth voltage has a larger voltage value.
- the voltage applied to the ion conduction vibrating plate can be the fifth of the alternating polarity.
- the voltage value of the fifth voltage is relatively small, which drives the dome 5 to move, realizes the low-frequency vibration of the dome 5, and is reused as a vibration motor.
- the lower shell 2 and the middle shell 3 are fixedly connected. Specifically, the connection can be made by welding, and the lower shell 2 and the middle shell 3 play a supporting role.
- the electro-vibration plate 4 is a ring-shaped structural member with a first through hole, and the dome 5 covers the first through hole.
- the electro-vibration plate 4 and the dome 5 can be detachably connected.
- the electro-vibration plate 4 and the dome 5 are bonded together with an adhesive. When the dome 5 fails, the dome 5 can be easily replaced.
- the weight body 1 is a ring-shaped structural member with a second through hole, and the first through hole and the second through hole are relatively distributed.
- the weight body 1 is used to adjust the resonance frequency of the loudspeaker.
- the weight body 1 has a certain weight, and the weight can be set according to the actual situation, which is not limited here.
- the weight 1 and the electro vibrating plate 4 can be bonded together.
- the weight body 1 can be rectangular, elliptical, etc., so that the force of the weight body 1 received by the electro vibrating plate 4 can be uniform.
- the electro-vibration plate 4 has a first area, a second area, and a third area;
- the weight body 1 is disposed in the first area of the electro-vibrating plate 4, the electro-vibrating plate 4 is connected to the middle shell 3 through the second area, and the third area is located in the first area. Between the area and the second area;
- the third area of the electro-vibration plate 4 is recessed in a direction toward the lower case 2, or the third area of the electro-vibration plate 4 is recessed in a direction away from the lower case 2.
- the first area, the second area, and the third area are located on the first surface of the electro-vibrating plate 4, and the weight body 1 is connected to the first area of the electro-vibrating plate 4, which can be specifically bonded; the middle shell 3 is connected to the electro-vibrating plate 4.
- the second area of the sheet 4 is connected, and the third area of the electro-vibration sheet 4 is recessed in the direction toward the lower case 2, or the third area of the electro-vibration sheet 4 is facing away from the lower case 2
- the direction is recessed, so that the third area forms a curved arc, which is convenient for the electro-vibration plate 4 to drive the dome 5 to reciprocate under the condition of deformation.
- the middle shell 3 is provided with a third through hole, and there is a gap between the weight body 1 and the middle shell 3, so that the weight body 1 is suspended in the containing cavity to avoid
- the middle shell 3 hinders the movement of the electro-vibration plate 4.
- the weight body 1 can generate a force on the electro-vibrating plate 4 through its own gravity, and adjust the resonance frequency of the dome 5.
- the third through hole is a countersunk hole
- the countersunk hole of the countersunk hole is located at an end of the middle shell 3 away from the dome 5, and in the direction of movement of the dome 5,
- the projections of the spherical top 5 and the counterweight body 1 are both located within the projection of the countersunk hole, so that the counterweight 1 and the spherical top 5 can move back and forth in the countersunk hole.
- the height of the counterweight body 1 is greater than half of the height of the countersunk hole, and the height of the counterweight body 1 is less than the height of the countersunk hole, so that the counterweight body 1 can be suspended in the countersunk hole, and can follow Move with the movement of the top 5 of the ball.
- the speaker further includes a vibrating plate holder, the vibrating plate holder is ringed on the electro-vibrating plate 4, and the electro-vibrating plate 4 passes through the vibrating plate holder and the middle shell.
- the vibrating plate bracket can be made of low-cost insulating materials to save the amount of electro-induced vibrating plate 4 and reduce the cost of the speaker.
- an electronic device is also provided, and the electronic device includes the speaker in the foregoing embodiment. Since there are no magnets and coils in the structure of the speaker, it will not cause magnetic field interference to the circuits and devices around the speaker, which purifies the working environment of the circuits and devices around the speaker. At the same time, the speaker has a simple structure and a small footprint, which can be more Meet the needs of thinner electronic equipment.
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- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Description
Claims (12)
- 一种扬声器,包括配重体,以及依次设置的下壳、中壳、电致振动片和球顶;所述下壳、所述中壳以及所述电致振动片配合形成容置腔体,所述配重体设置于所述容置腔体内,且与所述电致振动片的第一表面相连接;所述球顶设置于所述电致振动片背离所述配重体的第二表面;当对所述电致振动片施加电压时,所述电致振动片驱动所述球顶移动。
- 根据权利要求1所述的扬声器,其中,所述电致振动片为开设有第一通孔的环状结构件,所述球顶覆盖于所述第一通孔。
- 根据权利要求2所述的扬声器,其中,所述配重体为开设有第二通孔的环状结构件,且所述第一通孔和所述第二通孔相对分布。
- 根据权利要求1所述的扬声器,其中,所述电致振动片为离子传导振动片;当施加于所述离子传导振动片的电压为第一电压时,所述离子传导振动片驱动所述球顶沿第一方向移动;当施加于所述离子传导振动片的电压为第二电压时,所述离子传导振动片驱动所述球顶沿第二方向移动;其中,所述第一电压和所述第二电压极性相反,所述第一方向与所述第二方向反向。
- 根据权利要求4所述的扬声器,其中,当施加于所述离子传导振动片的电压为第一电压时,所述离子传导振动片驱动所述球顶沿第一方向移动第一距离;当施加于所述离子传导振动片的电压为第三电压时,所述离子传导振动片驱动所述球顶沿第一方向移动第二距离;其中,所述第一电压和所述第三电压极性相同,且所述第三电压大于所述第一电压,所述第一距离与所述第二距离不相同。
- 根据权利要求4所述的扬声器,其中,当施加于所述离子传导振动片的电压为第一电压时,所述离子传导振动片以第一速率驱动所述球顶沿第一 方向移动;当施加于所述离子传导振动片的电压为第三电压时,所述离子传导振动片以第二速率驱动所述球顶沿第一方向移动;其中,所述第一电压和所述第三电压极性相同,且所述第三电压大于所述第一电压,所述第一速率与所述第二速率不相同。
- 根据权利要求1所述的扬声器,其中,所述电致振动片具有第一区域、第二区域和第三区域;所述配重体设置于所述电致振动片的第一区域,所述电致振动片通过所述第二区域与所述中壳连接,所述第三区域位于所述第一区域和所述第二区域之间;其中,所述电致振动片的第三区域沿朝向所述下壳的方向凹陷,或者,所述电致振动片的第三区域沿背离所述下壳的方向凹陷。
- 根据权利要求1所述的扬声器,其中,所述中壳开设有第三通孔,所述配重体与所述中壳之间具有间隙。
- 根据权利要求8所述的扬声器,其中,所述第三通孔为沉台孔,且所述沉台孔的沉台位于所述中壳远离所述球顶的一端,在所述球顶的运动方向上,所述球顶和所述配重体的投影均位于所述沉台孔的投影之内。
- 根据权利要求9所述的扬声器,其中,所述配重体的高度大于所述沉台孔的高度的一半,且所述配重体的高度小于所述沉台孔的高度。
- 根据权利要求1所述的扬声器,还包括振动片支架,所述振动片支架环设于所述电致振动片,所述电致振动片通过所述振动片支架与所述中壳固定连接。
- 一种电子设备,包括权利要求1-11中任一项所述的扬声器。
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EP21797383.3A EP4145857A4 (en) | 2020-04-30 | 2021-04-25 | SPEAKER AND ELECTRONIC DEVICE |
JP2022564728A JP2023523607A (ja) | 2020-04-30 | 2021-04-25 | スピーカー及び電子機器 |
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EP4145857A1 (en) | 2023-03-08 |
JP2023523607A (ja) | 2023-06-06 |
CN113596685B (zh) | 2022-09-20 |
US20230048346A1 (en) | 2023-02-16 |
EP4145857A4 (en) | 2023-11-08 |
KR20230002888A (ko) | 2023-01-05 |
US11871200B2 (en) | 2024-01-09 |
CN113596685A (zh) | 2021-11-02 |
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