Speaker, speaker adjustment method, adjustment device, electronic device, and medium

Abstract

The present disclosure relates to a loudspeaker, a loudspeaker adjusting method, an adjusting device, an electronic device and a medium. The loudspeaker comprises a diaphragm driving part, a cavity and a diaphragm unit arranged in the cavity. The diaphragm unit comprises a diaphragm layer having a first surface and a second surface arranged oppositely, and the first surface and the second surface are respectively provided with an electrode layer. The diaphragm layer is made of an electroactive polymer material. The diaphragm driving part is electrically connected with the electrode layer. In a power-on state, the diaphragm driving part is arranged to apply a driving electric signal to the diaphragm layer through the electrode layer to make the diaphragm layer vibrate. The diaphragm layer in the present disclosure is made of an electroactive polymer material, simulating artificial muscle. When the driving electric signal is applied to the diaphragm layer, the diaphragm layer vibrates to make the loudspeaker emit sound, which optimizes the sound quality and makes the sound closer to human voice, effectively improving the user experience.

Description

Technical Field

[0001] This disclosure relates to the field of loudspeakers, and more particularly to a loudspeaker, a loudspeaker adjustment method, an adjustment device, electronic equipment, and a medium. Background Technology

[0002] Currently, electronic devices have become indispensable items for people. They provide communication, entertainment, and other functions. As the communication bandwidth of electronic devices increases, voice communication has evolved from 2G narrowband to 4G broadband, ultra-wideband, and full-band, to meet people's ever-increasing demands for high-fidelity communication.

[0003] Electronic devices are equipped with speakers to enable communication and entertainment functions. Conventional speakers have a heavy mechanical sound and cannot meet users' needs for sound quality. Summary of the Invention

[0004] To overcome the problems existing in the related technologies, this disclosure provides a loudspeaker, a loudspeaker adjustment method, an adjustment device, an electronic device, and a medium.

[0005] According to a first aspect of the present disclosure, a loudspeaker is provided, the loudspeaker including a diaphragm driving part, a cavity, and a diaphragm unit disposed in the cavity;

[0006] The diaphragm unit includes a diaphragm layer having a first surface and a second surface disposed opposite to each other, and electrode layers are respectively disposed on the first surface and the second surface; wherein, the diaphragm layer is made of an electroactive polymer material;

[0007] The diaphragm driving unit is electrically connected to the electrode layer. When energized, the diaphragm driving unit is configured to apply a driving electrical signal to the diaphragm layer through the electrode layer, causing the diaphragm layer to vibrate.

[0008] Optionally, the loudspeaker further includes a shell structure having an accommodating space, the accommodating space including the cavity, and the diaphragm unit dividing the cavity into a rear cavity and a front cavity.

[0009] Optionally, the shell structure is further provided with a partition, which is located in the front cavity;

[0010] Along the thickness direction of the diaphragm unit, the front cavity is divided into a first sub-cavity and a second sub-cavity by the partition.

[0011] Optionally, the accommodating space further includes a sound outlet channel, through which the first sub-cavity communicates with the outside of the speaker, and / or, through which the second sub-cavity communicates with the outside of the speaker.

[0012] Optionally, the accommodating space further includes an inlet channel communicating with the front cavity, the inlet channel being disposed between the front cavity and the diaphragm unit.

[0013] Optionally, the shell structure includes a first shell and a second shell, and the diaphragm unit is disposed between the first shell and the second shell to separate the accommodating space.

[0014] Optionally, the speaker further includes an adjustment unit configured to adjust the volume of the rear cavity, and / or the adjustment unit configured to adjust the volume of the front cavity.

[0015] Optionally, the first housing includes at least one first movable side plate, which is configured to move along the extension direction of an adjacent first fixed side plate to adjust the volume of the rear cavity; wherein the adjustment unit is connected to the first movable side plate.

[0016] Optionally, the second housing includes at least one second movable side plate, which is configured to move along the extension direction of an adjacent second fixed side plate to adjust the volume of the front cavity; wherein the adjustment unit is connected to the second movable side plate.

[0017] The loudspeaker has multiple cavities, each of which is used to simulate the cavities of the human body;

[0018] The cavities corresponding to the human body include one or more of the nasal cavity, pharyngeal cavity, oral cavity, and thoracic cavity.

[0019] According to a second aspect of the present disclosure, an electronic device is provided, the electronic device including a device body and at least one speaker as described above, the device body being provided with an installation space, and the speaker being installed within the installation space.

[0020] Optionally, at least one through hole is provided on the side of the device body, and the through hole communicates with the sound output channel of the speaker.

[0021] According to a third aspect of the present disclosure, a method for adjusting a loudspeaker is provided, applied to an electronic device having a loudspeaker, the method comprising:

[0022] Based on the received audio signal, determine the driving electrical signal of the diaphragm drive unit;

[0023] The vibration of the diaphragm layer is controlled according to the driving electrical signal; the diaphragm layer is made of an electroactive polymer material.

[0024] Optionally, controlling the vibration of the diaphragm layer according to the driving electrical signal includes:

[0025] The deformation of the diaphragm layer is determined based on the driving electrical signal;

[0026] Based on the deformation, the diaphragm layer is controlled to generate vibrations corresponding to the deformation.

[0027] Optionally, the method further includes:

[0028] Receive audio information;

[0029] Based on the audio information, the parameters of the speaker's accommodating space are adjusted.

[0030] Optionally, the parameter information of the accommodating space includes at least one of the volume parameters of the front cavity, the volume parameters of the rear cavity, the length parameters of the inlet channel, and the length parameters of the outlet channel.

[0031] Optionally, the method further includes:

[0032] Construct a simulation model of the loudspeaker;

[0033] The simulation model is input with preset audio information;

[0034] Calculate the parameter information of the speaker's accommodating space.

[0035] According to a fourth aspect of the present disclosure, a loudspeaker adjustment device is provided, applied to an electronic device having a loudspeaker, the adjustment device comprising:

[0036] The determination module is used to determine the driving electrical signal of the diaphragm drive unit based on the received audio signal;

[0037] A control module is used to control the vibration of the diaphragm layer according to the driving electrical signal; the diaphragm layer is made of an electroactive polymer material.

[0038] According to a fifth aspect of the present disclosure, an electronic device is provided, comprising:

[0039] Processor; memory used to store the processor's executable instructions.

[0040] The processor is configured to perform the adjustment method described above.

[0041] According to a sixth aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, wherein when instructions in the storage medium are executed by a processor of an electronic device, the electronic device is enabled to perform the adjustment method described above.

[0042] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: The diaphragm layer in this disclosure is made of an electroactive polymer material, which simulates artificial muscles. When a driving electrical signal is applied to the diaphragm layer, the diaphragm layer vibrates, causing the speaker to emit sound, thus optimizing the sound quality and making the sound closer to the human voice, effectively improving the user experience.

[0043] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0044] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0045] Figure 1 This is a schematic diagram of a loudspeaker according to an exemplary embodiment.

[0046] Figure 2 This is a schematic diagram of an electronic device according to an exemplary embodiment.

[0047] Figure 3 This is a flowchart illustrating a method for adjusting a loudspeaker according to an exemplary embodiment.

[0048] Figure 4 This is a flowchart illustrating a method for adjusting a loudspeaker according to an exemplary embodiment.

[0049] Figure 5 This is a flowchart illustrating a method for adjusting a loudspeaker according to an exemplary embodiment.

[0050] Figure 6 This is a flowchart illustrating a method for adjusting a loudspeaker according to an exemplary embodiment.

[0051] Figure 7 This is a block diagram illustrating a loudspeaker adjustment device according to an exemplary embodiment.

[0052] Figure 8 This is a block diagram of an electronic device according to an exemplary embodiment. Detailed Implementation

[0053] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0054] In related technologies, conventional loudspeakers mainly include moving-coil loudspeakers. Moving-coil loudspeakers produce a mechanical sound, which reduces sound quality and affects the user experience. When moving-coil loudspeakers are working, they are affected by changes in the magnetic field, which can interfere with other electrical components within the electronic device, further affecting the sound quality.

[0055] This disclosure discloses a loudspeaker, which includes a diaphragm driving unit, a cavity, and a diaphragm unit disposed within the cavity. The diaphragm unit includes a diaphragm layer having a first surface and a second surface disposed opposite to each other, and electrode layers are respectively disposed on the first surface and the second surface; wherein the diaphragm layer is made of an electroactive polymer material. The diaphragm driving unit is electrically connected to the electrode layer. In a powered state, the diaphragm driving unit is configured to apply a driving electrical signal to the diaphragm layer through the electrode layer, causing the diaphragm layer to vibrate. The diaphragm layer in this disclosure, made of an electroactive polymer material, simulates artificial muscle. When a driving electrical signal is applied to the diaphragm layer, the diaphragm layer vibrates, causing the loudspeaker to emit sound, thus optimizing the sound quality, making the sound closer to a human voice, and effectively improving the user experience.

[0056] In one exemplary embodiment, such as Figure 1 As shown, a loudspeaker includes a diaphragm drive unit (not shown), a cavity 111, and a diaphragm unit 2 disposed in the cavity 111. The diaphragm unit 2 is fixedly connected to the cavity 111 to improve the stability of the diaphragm unit 2.

[0057] The diaphragm unit 2 includes a diaphragm layer 21, which has a first surface and a second surface disposed opposite to each other. Electrode layers 22 are respectively disposed on the first and second surfaces. The electrode layers 22 can be made of, for example, ITO or nano-silver material, effectively improving the conductivity of the electrode layers 22. The electrode layers 22 may include a positive electrode layer and a negative electrode layer. The positive electrode layer is attached to the first surface, and the negative electrode layer is attached to the second surface, or vice versa. The specific placement of the positive and negative electrode layers and the area they cover on the diaphragm layer 21 are subject to actual design. The electrode layers 22 are used for electrical connection with the diaphragm driving unit. In the energized state, the diaphragm driving unit is configured to apply a driving electrical signal to the diaphragm layer 21 through the electrode layers 22, causing the diaphragm layer 21 to vibrate, pushing air and generating sound. The driving electrical signal can be, for example, a driving voltage or a driving current, as long as it can form an electrical connection with the electrode layers 22 to drive the diaphragm layer 21 to vibrate.

[0058] In this embodiment, the diaphragm layer 21 can be made of an electroactive polymer material, which can produce various forms of mechanical response such as contraction, bending, tightening or expansion when energized, making the diaphragm layer 21 closer to the human vocal cords, simulating vocal cord sound production, reducing the mechanical feel of the speaker, and effectively improving the sound quality of the speaker.

[0059] In one example, the diaphragm layer 21 has a regular sheet-like structure, such as 12mm x 6mm. This regular shape is easy to achieve, making it easier to control the deformation and vibration frequency of the diaphragm layer 21 in response to mechanical properties. Different driving electrical signals result in different deformations and vibration frequencies. When the deformation of the diaphragm layer 21 increases and it becomes thinner, its vibration frequency increases; conversely, when the deformation of the diaphragm layer 21 decreases, making it thicker and more relaxed, its vibration frequency decreases.

[0060] In another example, the diaphragm layer 21 can have an irregular structure, such as the structure of human vocal cords. Different states of the vocal cords can produce different sounds. The diaphragm layer 21 is used to simulate the structure of human vocal cords, making the sound of the speaker closer to the human voice.

[0061] The diaphragm layer 21, made of an electroactive polymer material, can be an electronic EAP, which gives the diaphragm layer 21 high tear resistance and inherent vibration damping properties similar to biological muscles. This results in better tensile and vibration characteristics, making it less prone to damage, extending the service life of the diaphragm layer 21, and reducing the cost of use.

[0062] In one exemplary embodiment, such as Figure 1 As shown, the speaker also includes a shell structure 1, which has an accommodating space 11. The accommodating space 11 includes cavities 111, wherein multiple cavities 11 can be provided to simulate the cavities of the human body, such as the pharynx, chest cavity, nasal cavity, and oral cavity. The specific number of cavities 11 is subject to the actual design.

[0063] The diaphragm unit 2 is disposed inside the cavity 111, and the diaphragm unit 2 divides the cavity 111 into a front cavity 1111 and a rear cavity 1112. The rear cavity 1112 is used to simulate the human chest cavity.

[0064] The shell structure 1 also includes a partition 12, which is located within the front cavity 1111 and extends along the thickness direction of the diaphragm unit 2 (see reference). Figure 1 As shown on the X-axis, the partition 12 divides the front cavity 1111 into a first sub-cavity 11111 and a second sub-cavity 11112. The first sub-cavity 11111 is used to simulate the human oral cavity, and the second sub-cavity 11112 is used to simulate the human nasal cavity, so as to achieve dual-cavity sound output and achieve different sound output effects.

[0065] Along the thickness direction of the diaphragm unit 2, the partition 12 includes a first end and a second end. The first end is located on the side closer to the diaphragm unit 2, and the second end is located on the side farther away from the diaphragm unit 2. The first end is spaced apart from the inner wall of the front cavity 1111 to form a clearance, ensuring that air can flow along the first sub-cavity 11111 and the second sub-cavity 11112 respectively, realizing dual-cavity sound output.

[0066] The first sub-cavity 11111 has a larger volume than the second sub-cavity 11112, resulting in different volume distributions and proportions to achieve different sound output designs, thus enabling various sound effects such as enhanced bass and stereo, providing users with a more pleasing audio experience and improving the overall user experience.

[0067] In this embodiment, as Figure 1 As shown, the accommodating space 11 also includes a sound outlet channel 112, which is connected to the front cavity 1111, so that sound can be transmitted to the outside of the speaker through the sound outlet channel 112 to achieve amplification.

[0068] In one example, the first sub-cavity 11111 is connected to the outside of the speaker through the sound outlet channel 112. The second end of the partition 12 is spaced apart from the inner wall of the front cavity 1111 to form a clearance, ensuring that the air in the second sub-cavity 11112 can flow into the first sub-cavity 11111 and flow along the sound outlet channel 112 to the outside of the speaker to form amplification.

[0069] In another example, the second sub-cavity 11112 is connected to the outside of the speaker through the sound outlet channel 112. The second end of the partition 12 is spaced apart from the inner wall of the front cavity 1111 to form a clearance, ensuring that the air in the first sub-cavity 11111 can flow into the second sub-cavity 11112 and flow along the sound outlet channel 112 to the outside of the speaker to form amplification.

[0070] In another example, the sound output channel 112 includes a first sub-channel 1121 and a second sub-channel 1122. The first sub-channel 1121 simulates the mouth of a human, and the second sub-channel 1122 simulates the nostrils of a human. The first sub-cavity 11111 is connected to the outside of the speaker through the first sub-channel 1121, and the second sub-cavity 11112 is connected to the outside of the speaker through the second sub-channel 1122, forming a dual sound output channel 112. This further enhances the sound output effect, meets the user's demand for sound quality, and improves the user's experience.

[0071] In this embodiment, as Figure 1As shown, the accommodating space 11 also includes an inlet channel 113 communicating with the front cavity 1111. The inlet channel 113 is disposed between the front cavity 1111 and the diaphragm unit 2 to facilitate the simulation of the human pharynx. When the diaphragm unit 2 vibrates to drive airflow, air enters the front cavity 1111 along the inlet channel 113.

[0072] The inner diameter of the sound inlet channel 113 is smaller than the inner diameter of the front cavity 1111. The sound inlet channel 113 can be configured to correspond to the first sub-cavity 11111, and the sound inlet channel 113 is connected to the first sub-cavity 11111. Air flows along the sound inlet channel 113 into the first sub-cavity 11111, and then from the first sub-cavity 11111 into the second sub-cavity 11112.

[0073] When sound enters through the entrance channel 113, it is tightened, thus acting as a filter. The inner diameter of the entrance channel 113 can be smaller than the inner diameter of the first sub-cavity 11111 of the front cavity 1111. When sound enters the first sub-cavity 11111, it amplifies the sound, achieving amplification.

[0074] In this embodiment, as Figure 1 As shown, the shell structure 1 also includes a first shell 13 and a second shell 14. The diaphragm unit 2 is disposed between the first shell 13 and the second shell 14 to separate the accommodating space 11. The first shell 13 has a first recessed groove, which is configured as a rear cavity 1112. The second shell 14 has a second recessed groove, which is formed by the front cavity 1111 and the sound inlet channel 113. The first shell 13 and the second shell 14 are assembled together to facilitate the installation and removal of the diaphragm unit 2. When the diaphragm unit 2 is damaged, either the first shell 13 or the second shell 14 can be removed to replace the diaphragm unit 2.

[0075] In one exemplary embodiment, such as Figure 1 As shown, the speaker also includes an adjustment unit (not shown in the figure), which is electrically connected to the mainboard of the electronic device to facilitate control of the adjustment unit.

[0076] In one example, the adjustment unit is configured to adjust the volume of the rear cavity 1112 to adjust the audio information and provide the user with suitable audio effects. Audio effects may include, for example, bass enhancement.

[0077] The first housing 13 includes at least one first movable side plate 131, which is configured to move along the extending direction of an adjacent first fixed side plate 132 to adjust the volume of the rear cavity 1112. An adjustment unit is connected to the first movable side plate 131 to control the movement of the first movable side plate 131.

[0078] The first fixed side plate 132 is immovable and is fixedly connected to the diaphragm unit 2 to ensure the stability of the diaphragm unit 2. The first movable side plate 131 is movable and is located away from the diaphragm unit 2, and is movably connected to the first fixed side plate 132.

[0079] When one first movable side plate 131 is provided, the first movable side plate 131 can be slidably connected to the first fixed side plate 132. For example, a slider is provided at the end of the first movable side plate 131, and a corresponding groove is provided on the first fixed side plate 132, allowing the slider to slide along the groove. When two first movable side plates 131 are provided, a slider is provided at the end connected to the first fixed side plate 132. The other end of one first movable side plate 131 is embedded in the other end of the other first movable side plate 131, allowing the other first movable side plate 131 to be stored within or removed from one of the first movable side plates 131, further enabling adjustment.

[0080] In another example, the adjustment unit is configured to adjust the volume of the front cavity 1111 in order to adjust the audio information and provide the user with a suitable sound output effect.

[0081] The second housing 14 includes at least one second movable side plate 141, which is configured to move along the extending direction of an adjacent second fixed side plate 142 to adjust the volume of the front cavity 1111. An adjustment unit is connected to the second movable side plate 141 to control the movement of the second movable side plate 141.

[0082] The second fixed side plate 142 is immovable. For example, it is connected to the inlet channel 113 and the outlet channel 112 to ensure the unobstructed flow of the inlet and outlet channels 113 and 112. The second movable side plate 141 is movably connected to the second fixed side plate 142. The second movable side plate 141 is located, for example, inside the first sub-cavity 11111 to facilitate adjustment of the inner diameter of the first sub-cavity 11111. The second movable side plate 141 can be slidably connected to the second fixed side plate 142. For example, a slider is provided at the end of the second movable side plate 141, and a corresponding groove is provided on the second fixed side plate 142 so that the slider can slide along the groove.

[0083] When a speaker is used as a handset, during a call, the other party's voice is received, and the electronic device analyzes the received sound to identify the structure of the other party's voice. Based on the structure of the other party's original voice, the volume of the front cavity, the volume of the rear cavity, or the length of the entrance channel is adjusted so that the sound emitted from the cavity can approximate the other party's voice. Since there are differences in the vocal structures of individuals, the volume of the cavity is adjusted to match the identified vocal structure, improving the user's auditory experience. For example, a child's chest cavity and oral cavity are smaller, so the vocal cavity will be smaller; an adult's chest cavity and oral cavity are larger, so the vocal cavity will be larger.

[0084] The loudspeaker disclosed herein applies a driving electrical signal to the diaphragm layer through the electrode layer, causing the diaphragm layer to vibrate, thus pushing air and producing sound. The diaphragm layer is made of an electroactive polymer material, mimicking the human vocal cords. Different voltage values ​​produce different deformations and vibration spectra, thereby producing different sounds and achieving different sound effects to meet users' needs for sound quality.

[0085] The loudspeaker has internal spaces designed to simulate the structure of the human body. For example, the rear cavity simulates the human chest cavity, and when sound enters the inlet channel, the inlet channel simulates the human pharynx. The inner diameter of the inlet channel is smaller than that of the first sub-cavity, which, like the vocal cords, tightens and filters the sound, correcting the sound spectrum.

[0086] When sound travels through the inlet channel into the front cavity, it propagates along the first and second sub-cavities within the front cavity. The first sub-cavity simulates the human oral cavity, and the second sub-cavity simulates the human nasal cavity. The volume of the first sub-cavity is larger than that of the second sub-cavity, creating different spatial proportions that enhance the audio effect. The outlet channel simulates the human mouth and nostrils to ensure that sound can propagate outwards, enabling the electronic device to have external speaker functionality and meeting user needs.

[0087] The adjustment unit inside the speaker is used in conjunction with calls. It adjusts the volume of the cavity according to the structure of the other party's voice, further enhancing the user's auditory experience.

[0088] This disclosure also provides an electronic device, which includes a device body and at least one speaker as described in any of the embodiments above. The device body is provided with an installation space, and the speaker is installed in the installation space, thereby realizing the audio function of the electronic device.

[0089] In one exemplary embodiment, such as Figure 1 and Figure 2As shown, the electronic device can be, for example, a mobile phone or a tablet computer. The electronic device includes a device body 3, a speaker, and a motherboard (not shown in the figure). The device body 3 is, for example, a device casing. The device body 3 has an installation space 31, in which the speaker and the motherboard are respectively installed. The speaker is electrically connected to the motherboard to facilitate speaker control.

[0090] The device body 3 has at least one through hole 31 on its side. The through hole 31 is connected to the sound output channel 112 of the corresponding speaker. Sound can be transmitted through the sound output channel 112 to the through hole 31 and then to the outside of the electronic device so that the user can listen to it.

[0091] It should be noted that the number of speakers is not limited to one; two or more can be used to improve the audio effect of the electronic device. The speakers can be distributed circumferentially along the device body 3 to create multi-directional stereo sound. Furthermore, the side of the device body 3 has through holes 31 corresponding to the number of speakers to ensure that sound can propagate normally and airflow can escape.

[0092] The electronic device disclosed herein utilizes a speaker as a handset or loudspeaker to enable call and audio playback functions, thus meeting basic user needs. Furthermore, by improving the speaker's sound quality, the user experience is enhanced, making the device more competitive in the market.

[0093] This disclosure also provides a method for adjusting a loudspeaker, applicable to an electronic device having a loudspeaker. The electronic device includes a loudspeaker and a motherboard, the motherboard being electrically connected to the loudspeaker. A control chip is integrated on the motherboard, the control chip being capable of controlling the loudspeaker.

[0094] like Figure 3 As shown, the speaker adjustment method in this embodiment includes:

[0095] S110. Based on the received audio signal, determine the driving electrical signal of the diaphragm drive unit.

[0096] In this step, refer to Figure 1 As shown, the control chip receives an audio signal, which may be audio playback parameters. Based on the received audio playback parameters, it determines the vibration frequency of the diaphragm layer 21, and then determines the driving electrical signal for the diaphragm drive unit. The driving electrical signal may be, for example, a driving voltage or a driving current.

[0097] S120: Control the vibration of the diaphragm layer according to the driving electrical signal.

[0098] In this step, refer to Figure 1As shown, the control chip controls the vibration of the diaphragm layer 21 according to the driving electrical signal to push air and generate sound. When the driving electrical signal is a driving voltage, the vibration frequency of the diaphragm layer 21 is directly proportional to the voltage value of the driving voltage; the higher the vibration frequency, the higher the voltage value of the driving voltage, and the lower the vibration frequency, the lower the voltage value of the driving voltage. When the driving electrical signal is a driving current, the vibration frequency of the diaphragm layer 21 can be directly proportional to or inversely proportional to the current value of the driving current.

[0099] The diaphragm layer 21 is made of an electroactive polymer material, making it closer to the human vocal cords. When energized, it can produce various forms of mechanical response such as contraction, bending, tightening or expansion, making the diaphragm layer 21 closer to the human vocal cords, simulating vocal cord sound production, reducing the mechanical feel of the speaker, and effectively improving the sound quality of the speaker.

[0100] The method disclosed herein utilizes an electroactive polymer material to fabricate a diaphragm layer, mimicking the human vocal cords. This effectively reduces the mechanical feel of the speaker, improves its sound quality, and meets user demands for superior audio quality. Based on the audio signal, a driving electrical signal for the diaphragm driver is determined, thereby controlling the diaphragm layer to vibrate at a desired frequency, propelling air and ultimately generating sound, thus realizing the power amplifier function of the electronic device.

[0101] This disclosure also provides a method for adjusting a loudspeaker, applicable to an electronic device having a loudspeaker. The electronic device includes a loudspeaker and a motherboard, the motherboard being electrically connected to the loudspeaker. A control chip is integrated on the motherboard, the control chip being capable of controlling the loudspeaker.

[0102] like Figure 4 As shown, the speaker adjustment method in this embodiment includes:

[0103] S210. Based on the received audio signal, determine the driving electrical signal of the diaphragm drive unit.

[0104] S220. Determine the deformation of the diaphragm layer based on the driving electrical signal.

[0105] In this step, refer to Figure 1 As shown, the control chip determines the deformation of the diaphragm layer 21 based on the driving electrical signal, and then determines the vibration frequency of the diaphragm layer 21.

[0106] When the driving signal is a driving voltage, the deformation of the diaphragm layer 21 is related to the voltage value of the driving voltage. The larger the driving voltage value, the larger the deformation of the diaphragm layer 12 and the higher the vibration frequency of the diaphragm layer 21. The smaller the driving voltage value, the smaller the deformation of the diaphragm layer 12 and the lower the vibration frequency of the diaphragm layer 21.

[0107] S230. Based on the deformation, control the diaphragm layer to generate vibrations corresponding to the deformation.

[0108] In this step, refer to Figure 1 As shown, the control chip determines the vibration frequency of the diaphragm layer 21 based on the deformation of the diaphragm layer 21, and then controls the vibration layer to generate vibrations corresponding to the deformation, thereby completing the propulsion of the air.

[0109] The method in this embodiment determines the deformation of the diaphragm layer by driving an electrical signal, and then controls the diaphragm layer to generate vibrations corresponding to the deformation, thereby pushing the air and producing sound. The implementation method is simple.

[0110] This disclosure also provides a method for adjusting a loudspeaker, applicable to an electronic device having a loudspeaker. The electronic device includes a loudspeaker and a motherboard, the motherboard being electrically connected to the loudspeaker. A control chip is integrated on the motherboard, the control chip being capable of controlling the loudspeaker.

[0111] like Figure 5 As shown, the speaker adjustment method in this embodiment includes:

[0112] S310, Receive audio information;

[0113] In this step, the control chip receives audio information. This audio information can be, for example, sound source information or audio data.

[0114] S320: Adjust the parameter information of the speaker's enclosure space based on audio information.

[0115] In this step, refer to Figure 1 As shown, the control chip adjusts the parameter information of the speaker's accommodating space 11 according to the audio information. The parameter information of the accommodating space 11 includes at least one of the volume parameters of the front cavity 1111, the volume parameters of the rear cavity 1112, the length parameters of the inlet channel 113, and the length parameters of the outlet channel 112.

[0116] In one example, when the audio information is, for example, sound source information, the speaker acts as a handset to enable the communication function of the electronic device. The control chip of the electronic device receives the sound source information transmitted from the other party, analyzes the structure of the other party's sound, and then determines the parameter information of the speaker's accommodating space 11.

[0117] Since there are differences in vocal structures between individuals, the control chip can identify these structures and analyze, but is not limited to, the volume parameters of the chest cavity, oral cavity, and nasal cavity. Based on these parameters, the control chip determines the volume parameters of the front cavity 1111 and / or the rear cavity 1112 and / or the length parameters of the inlet channel 113 and / or the length parameters of the outlet channel 112 within the accommodating space 11. This allows the control unit to move and adjust the parameters of the accommodating space 11 to more closely resemble human vocalization, thus enhancing the user experience.

[0118] For example, children have smaller chest cavities and oral cavities, resulting in smaller vocal cavities and lower vibration frequencies; adults have larger chest cavities or oral cavities, resulting in larger vocal cavities and higher vibration frequencies.

[0119] In another example, when the audio information is audio, the speaker acts as a loudspeaker to realize the power amplifier function of the electronic device. The control chip of the electronic device receives the played audio, analyzes it, determines the loudness of the audio, and then determines the parameter information of the accommodating space 11. It then drives the adjustment unit to move, adjusts the parameter information of the accommodating space 11, and improves the audio quality of the speaker.

[0120] The method in this embodiment adjusts the parameter information of the accommodating space according to the audio information to achieve different sound effects of the speaker, meet the user's needs for sound quality, adjust and match the accommodating space, and improve the user's auditory experience.

[0121] This disclosure also provides a method for adjusting a loudspeaker, applicable to an electronic device having a loudspeaker. The electronic device includes a loudspeaker and a motherboard, the motherboard being electrically connected to the loudspeaker. A control chip is integrated on the motherboard, the control chip being capable of controlling the loudspeaker.

[0122] like Figure 6 As shown, the speaker adjustment method in this embodiment includes:

[0123] S410. Construct a simulation model of the loudspeaker.

[0124] In this step, refer to Figure 1 As shown, the loudspeaker's accommodating space 11 includes a rear cavity 1112, a front cavity 1111, an inlet channel 113, and an outlet channel 112. The parameter information of each part of the accommodating space 11 affects the sound quality. Constructing a simulation model of the loudspeaker can not only facilitate the initial design of the loudspeaker, but also be used to adjust the parameter information of the accommodating space 11 based on audio information.

[0125] Based on the volume parameters of the front cavity 1111, the volume parameters of the rear cavity 1112, the length parameters of the inlet channel 113, the length parameters of the outlet channel 113, and the sound quality of the speaker, a simulation model of the speaker is constructed. The sound quality of the speaker can be expressed as, but is not limited to, the vibration frequency of the diaphragm layer 21, the deformation of the diaphragm layer 21, and the loudness of the speaker.

[0126] Once the speaker simulation model is built, it is stored in the control chip of the electronic device so that the control chip can retrieve and use it at any time.

[0127] S420, Input the simulation model of preset audio information.

[0128] In this step, preset audio information is input into the simulation model. This preset audio information can be input manually or automatically.

[0129] S430, Calculate the parameter information of the speaker's enclosure space.

[0130] In step S420, refer to Figure 1 As shown, the control chip uses a simulation model to calculate the parameter information of the speaker's accommodating space 11, so as to design according to the parameter information of the accommodating space 11, or adjust the parameter information of the accommodating space 11.

[0131] For example, during the design phase, after the simulation model is built, it is pre-stored in the electronic device. After determining the sound quality of the speaker, parameters related to the sound quality of the speaker can be manually input, such as the vibration frequency of the diaphragm layer 21, the deformation of the diaphragm layer 21, and the loudness of the speaker. Then, the parameter information of the accommodating space 11 can be calculated, such as the volume parameters of the front cavity 1111, the volume parameters of the rear cavity 1112, the length parameters of the inlet channel 113, and the length parameters of the outlet channel 113, etc., and the design can be carried out according to the parameter information of the accommodating space 11.

[0132] For example, during user operation, the simulation model is built into the electronic device. When the speaker is making a call or playing music, it can calculate the parameter information of the accommodating space 11 based on the audio information, and then drive the adjustment unit to move so that the parameter information of the accommodating space 11 reaches the expected value, thereby improving the sound quality of the speaker and meeting the user's needs.

[0133] The method in this embodiment determines the parameter information of the accommodating space by constructing a simulation model. According to design needs or usage requirements, the parameter information of the accommodating space is designed or adjusted to achieve diversification of different sound qualities of the speaker and improve the user experience.

[0134] This disclosure also proposes a loudspeaker adjustment device for use in electronic devices having loudspeakers.

[0135] In one exemplary embodiment, such as Figure 7 As shown, the speaker adjustment device includes a determining module 110 and a control module 120. The device in this embodiment is used to achieve the following: Figure 3 The method is illustrated. During implementation, the determining module 110 determines the driving electrical signal for the diaphragm drive unit based on the received audio signal. The control module 120 controls the vibration of the diaphragm layer according to the driving electrical signal. The diaphragm layer is made of an electroactive polymer material.

[0136] In one exemplary embodiment, such as Figure 7 As shown, the speaker adjustment device includes a determining module 110 and a control module 120. The device in this embodiment is used to achieve the following: Figure 4 The method is illustrated. During implementation, the control module 120 is also used to determine the deformation of the diaphragm layer based on the driving electrical signal. Based on the deformation, the control module controls the diaphragm layer to generate vibrations corresponding to the deformation.

[0137] In one exemplary embodiment, such as Figure 7 As shown, the speaker adjustment device includes a determining module 110 and a control module 120. The device in this embodiment is used to achieve the following: Figure 5 The method is illustrated. During implementation, the control module 120 is also used to receive audio information. Based on the audio information, the parameter information of the speaker's accommodating space is adjusted.

[0138] In one exemplary embodiment, such as Figure 7 As shown, the speaker adjustment device includes a determining module 110 and a control module 120. The device in this embodiment is used to achieve the following: Figure 6 The method is illustrated. During implementation, the control module 120 is also used to construct a simulation model of the loudspeaker. The simulation model is input with preset audio information. The parameter information of the loudspeaker's enclosure space is calculated.

[0139] This disclosure also provides an electronic device including a processor. The processor has a memory for storing processor-executable instructions. The processor is configured to execute instructions such as… Figure 3-6 The method shown.

[0140] like Figure 8 The diagram shown is a block diagram of an electronic device. For example, device 800 can be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, etc.

[0141] Device 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input / output (I / O) interface 812, sensor component 814, and communication component 816.

[0142] Processing component 802 typically controls the overall operation of device 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0143] Memory 804 is configured to store various types of data to support the operation of device 800. Examples of this data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0144] The power supply component 806 provides power to the various components of the device 800. The power supply component 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 800.

[0145] Multimedia component 808 includes a screen that provides an output interface between device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When device 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0146] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when device 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0147] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0148] Sensor assembly 814 includes one or more sensors for providing state assessments of various aspects of device 800. For example, sensor assembly 814 may detect the on / off state of device 800, the relative positioning of components such as the display and keypad of device 800, changes in the position of device 800 or a component of device 800, the presence or absence of user contact with device 800, the orientation or acceleration / deceleration of device 800, and temperature changes of device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0149] Communication component 816 is configured to facilitate wired or wireless communication between device 800 and other devices. Device 800 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0150] In an exemplary embodiment, device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0151] Another exemplary embodiment of this disclosure provides a non-transitory computer-readable storage medium, such as a memory 804 including instructions that can be executed by a processor 820 of a device 800 to perform the described method. For example, the computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc. When the instructions in the storage medium are executed by the processor of an electronic device, the electronic device is able to perform a speaker adjustment method as described above.

[0152] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0153] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A loudspeaker, characterized in that, The loudspeaker includes a diaphragm drive unit, a cavity, and a diaphragm unit disposed within the cavity; The diaphragm unit includes a diaphragm layer having a first surface and a second surface disposed opposite to each other, and electrode layers are respectively disposed on the first surface and the second surface; wherein, the diaphragm layer is made of an electroactive polymer material; The diaphragm driving unit is electrically connected to the electrode layer. When energized, the diaphragm driving unit is configured to apply a driving electrical signal to the diaphragm layer through the electrode layer, causing the diaphragm layer to vibrate. The loudspeaker also includes a shell structure, the shell structure having an accommodating space, the accommodating space including the cavity, and the diaphragm unit dividing the cavity into a rear cavity and a front cavity; The accommodating space also includes an inlet channel communicating with the front cavity. The inlet channel is disposed between the front cavity and the diaphragm unit, and the inlet channel is used to simulate the human pharynx. The shell structure is also provided with a partition, which is located in the front cavity; Along the thickness direction of the diaphragm unit, the front cavity is divided into a first sub-cavity and a second sub-cavity by the dividing part. The first sub-cavity is used to simulate the oral cavity of a human body, the second sub-cavity is used to simulate the nasal cavity of a human body, and the rear cavity is used to simulate the chest cavity of a human body.

2. The loudspeaker according to claim 1, characterized in that, The accommodating space further includes a sound outlet channel, through which the first sub-cavity is connected to the outside of the speaker, and / or, through which the second sub-cavity is connected to the outside of the speaker.

3. The loudspeaker according to claim 1, characterized in that, The shell structure includes a first shell and a second shell, and the diaphragm unit is disposed between the first shell and the second shell to separate the accommodating space.

4. The loudspeaker according to claim 3, characterized in that, The speaker also includes an adjustment unit configured to adjust the volume of the rear cavity, and / or, the adjustment unit configured to adjust the volume of the front cavity.

5. The loudspeaker according to claim 4, characterized in that, The first housing includes at least one first movable side plate, which is configured to move along the extension direction of an adjacent first fixed side plate to adjust the volume of the rear cavity; wherein the adjustment unit is connected to the first movable side plate.

6. The loudspeaker according to claim 4, characterized in that, The second housing includes at least one second movable side plate, which is configured to move along the extension direction of an adjacent second fixed side plate to adjust the volume of the front cavity; wherein the adjustment unit is connected to the second movable side plate.

7. An electronic device, characterized in that, The electronic device includes a device body and at least one speaker as described in any one of claims 1-6, the device body having an installation space and the speaker being installed within the installation space.

8. A method for adjusting a loudspeaker, applied to an electronic device having a loudspeaker, characterized in that, The method includes: Based on the received audio signal, determine the driving electrical signal of the diaphragm drive unit; The vibration of the diaphragm layer is controlled according to the driving electrical signal; the diaphragm layer is made of an electroactive polymer material. The method further includes: Receive audio information; Based on the audio information, the parameter information of the speaker's accommodating space is adjusted; the parameter information of the accommodating space includes at least one of the following: the volume parameter of the front cavity, the volume parameter of the rear cavity, the length parameter of the inlet channel, and the length parameter of the outlet channel. The loudspeaker includes a shell structure, the shell structure is provided with an accommodating space, the accommodating space includes a cavity, and the diaphragm unit divides the cavity into a rear cavity and a front cavity; The accommodating space also includes an inlet channel communicating with the front cavity, the inlet channel being disposed between the front cavity and the diaphragm unit, wherein the inlet channel is used to simulate the pharynx of the human body; The shell structure is also provided with a partition, which is located in the front cavity; Along the thickness direction of the diaphragm unit, the front cavity is divided into a first sub-cavity and a second sub-cavity by the dividing part. The first sub-cavity is used to simulate the oral cavity of a human body, the second sub-cavity is used to simulate the nasal cavity of a human body, and the rear cavity is used to simulate the chest cavity of a human body.

9. The adjustment method according to claim 8, characterized in that, The step of controlling the vibration of the diaphragm layer according to the driving electrical signal includes: The deformation of the diaphragm layer is determined based on the driving electrical signal; Based on the deformation, the diaphragm layer is controlled to generate vibrations corresponding to the deformation.

10. The adjustment method according to claim 8, characterized in that, The method further includes: Construct a simulation model of the loudspeaker; The simulation model is input with preset audio information; Calculate the parameter information of the speaker's accommodating space.

11. An electronic device, characterized in that, include: Processor; memory used to store the processor's executable instructions. The processor is configured to perform the adjustment method as described in any one of claims 8-10.

12. A non-transitory computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the electronic device, the electronic device is able to perform the adjustment method as described in any one of claims 8-10.

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