Sound production device, sound production control method, device, terminal, and storage medium

Abstract

The present disclosure relates to a sound generating device, a terminal and a sound generating control method, wherein the sound generating device comprises a sound generating body and a heating unit, the sound generating body comprises a sealed space, the sealed space is filled with a heat-sensitive gas, and the heating unit is accommodated in the sealed space; the sound generating body comprises a sound generating unit, the heating unit is used for heating the heat-sensitive gas to make the heat-sensitive gas expand, the sound generating body is used for cooling the heat-sensitive gas to make the heat-sensitive gas contract, and the expansion or contraction of the heat-sensitive gas drives the sound generating unit to vibrate and generate sound. The sound generating device realizes sound generation through the above-mentioned thermoacoustic effect, does not need to be provided with structures such as magnetic steel and voice coil, simplifies the structure of the sound generating device, and better reduces the volume of the sound generating device. Moreover, the use of rare earth materials such as rubidium iron boron can be avoided, and the cost of the sound generating device is reduced.

Description

Technical Field

[0001] This disclosure relates to the field of terminal technology, and in particular to a sound-generating device, a sound-generating control method, an apparatus, a terminal, and a storage medium. Background Technology

[0002] A loudspeaker is a device that converts electrical signals into sound signals. In modern society, loudspeakers play an indispensable role, especially as people's living standards improve and the demand for high-quality audio becomes increasingly prominent.

[0003] In terms of sound generation, the main type of loudspeaker on the market is the moving-coil type. Moving-coil loudspeakers generally have a more complex structure and a larger size, making further reduction impossible. Furthermore, moving-coil loudspeakers require a magnet to provide a magnetic field, and the materials used to make these magnets include neodymium iron boron (NdFeB), which is a rare-earth material that is both scarce and expensive. Summary of the Invention

[0004] To overcome the problems existing in related technologies, this disclosure provides a sound-generating device, a sound-generating control method, an apparatus, a terminal, and a storage medium.

[0005] According to a first aspect of the present disclosure, a sound-generating device is provided, the sound-generating device including a sound-generating body and a heating unit, the sound-generating body including a sealed space, the sealed space being filled with a heat-sensitive gas, and the heating unit being housed in the sealed space;

[0006] The sound-generating body includes a sound-generating unit. The heating unit is used to heat the heat-sensitive gas to make it expand. The sound-generating body is used to cool the heat-sensitive gas to make it contract. The expansion or contraction of the heat-sensitive gas drives the sound-generating unit to vibrate and generate sound.

[0007] Optionally, the heating unit is located at the geometric center of the enclosed space, and the heating unit includes a voice coil.

[0008] Optionally, the sound-generating body includes a support unit, the support unit includes an opening, and the sound-generating unit is located at the opening;

[0009] The sound-generating device includes a connecting unit, and the heating unit and the supporting unit are fixedly connected through the connecting unit.

[0010] Optionally, the support unit includes a metal shell and a passive heat dissipation layer, the passive heat dissipation layer being located on the outside of the metal shell.

[0011] Optionally, the sound-generating device includes an active heat dissipation unit configured to actively dissipate heat from the support unit.

[0012] Optionally, the sound-generating unit includes a sound-generating diaphragm and a folded ring structure. The sound-generating diaphragm is constructed as a dome-shaped diaphragm, and the sound-generating diaphragm is connected to the support unit through the folded ring structure.

[0013] Optionally, the heat-sensitive gas includes helium and / or hydrogen.

[0014] Optionally, the sound-generating device includes a power amplifier unit, which is connected to the heating unit.

[0015] The power amplifier unit is configured to determine the output audio information based on the audio information to be played and the temperature information of the heating unit.

[0016] According to a second aspect of the present disclosure, a terminal is provided, the terminal including a first sound-emitting device, the first sound-emitting device being the sound-emitting device as described in the first aspect.

[0017] Optionally, the terminal includes a second sound-generating device, which includes an electromagnetic moving coil sound-generating device and / or a piezoelectric film sound-generating device.

[0018] According to a third aspect of the present disclosure, a sound generation control method is provided, applied to a terminal as described in the second aspect, the method comprising:

[0019] Acquire the audio information to be played, as well as the temperature information of the heating unit of the first sound-generating device;

[0020] Under the condition that the set conditions are met, the audio information to be played and the temperature information are processed according to the set algorithm model to determine the output audio information;

[0021] The heating unit is controlled according to the output audio information so that the first sound-generating device outputs the audio represented by the audio information to be played.

[0022] Optionally, the algorithm model is determined through modeling based on the following parameters:

[0023] The heat dissipation coefficient of the sound-generating body of the first sound-generating device, the amplitude information of the sound-generating unit of the first sound-generating device, the expansion coefficient of the heat-sensitive gas of the first sound-generating device, the temperature coefficient of the material of the heating unit of the first sound-generating device, and the linear relationship between the temperature of the heating unit and the impedance of the heating unit.

[0024] Optionally, the method includes:

[0025] Based on the temperature information, the power of the active heat dissipation unit of the first sound-generating device is controlled.

[0026] Optionally, the method includes:

[0027] If the set conditions are not met, control the second sound-emitting device to emit sound.

[0028] According to a fourth aspect of the present disclosure, a sound generation control device is provided, applied to a terminal as described in the second aspect, the device comprising:

[0029] The acquisition module is used to acquire the audio information to be played, as well as the temperature information of the heating unit of the first sound-generating device;

[0030] The determining module is used to process the audio information to be played and the temperature information according to a set algorithm model, under the condition that the set conditions are met, and to determine the output audio information;

[0031] The control module is used to control the heating unit according to the output audio information, so that the first sound-generating device outputs the audio represented by the audio information to be played.

[0032] According to a fifth aspect of the present disclosure, a terminal is provided, the terminal comprising:

[0033] processor;

[0034] First memory used to store executable instructions of the processor;

[0035] The processor is configured to perform the method as described in the third aspect.

[0036] According to a sixth aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, which, when instructions in the storage medium are executed by a processor of a terminal, enables the terminal to perform the method described in the third aspect.

[0037] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: the sound-generating device achieves sound generation through thermoacoustic effect, eliminating the need for structures such as magnets and voice coils, thus simplifying the structure of the sound-generating device and further reducing its size. Furthermore, it avoids the use of rare earth materials such as neodymium iron boron, reducing the cost of the sound-generating device.

[0038] 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

[0039] 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.

[0040] Figure 1 This is a schematic diagram of a sound-generating device according to an exemplary embodiment.

[0041] Figure 2 This is a flowchart illustrating a sound generation control method according to an exemplary embodiment.

[0042] Figure 3 This is a block diagram illustrating a sound control device according to an exemplary embodiment.

[0043] Figure 4 This is a block diagram of a terminal according to an exemplary embodiment. Detailed Implementation

[0044] 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.

[0045] This disclosure provides a sound-generating device (e.g., a loudspeaker) in which a heat-sensitive gas is heated by a heating unit to cause the heat-sensitive gas to expand, and the heat-sensitive gas is cooled by a sound-generating body to cause the heat-sensitive gas to contract, thereby driving the sound-generating unit to vibrate and generate sound through the expansion or contraction of the heat-sensitive gas.

[0046] This sound-generating device achieves sound production through the aforementioned thermoacoustic effect, eliminating the need for magnets, voice coils, and other structural components, thus simplifying the device's structure and reducing its size. Furthermore, it avoids the use of rare-earth materials such as neodymium iron boron, further reducing the device's cost.

[0047] In one exemplary embodiment, a sound-generating device is provided. This sound-generating device may be, for example, a speaker, headphones, a horn, or other device for generating sound. (See reference) Figure 1 As shown, the sound-generating device may include a sound-generating body 1 and a heating unit 2. The sound-generating body 1 may include a sound-generating unit 12, which generates sound through vibration.

[0048] The sound-generating body 1 includes a sealed space filled with a heat-sensitive gas 6, and the heating unit 2 is housed within the sealed space. The heat-sensitive gas 6 may include helium and / or hydrogen; that is, the sealed space may be filled with helium, hydrogen, or both. The specific type of heat-sensitive gas 6 can be determined according to the actual need for heat sensitivity.

[0049] In this sound-generating device, the heating unit 2 generates heat, which raises the temperature of the heat-sensitive gas 6, causing it to expand. Furthermore, the sound-generating body 1 can be made of a thermally conductive material. The better the thermal conductivity of the material, the better the thermal conductivity of the sound-generating body 1, which facilitates the cooling of the heat-sensitive gas 6. In this sound-generating device, when the temperature of the heat-sensitive gas 6 is higher than the ambient temperature, the sound-generating body 1 dissipates heat, causing the heat-sensitive gas 6 to cool down and contract.

[0050] In this sound-generating device, the expansion and contraction of the heat-sensitive gas 6 drives the sound-generating unit 12 to vibrate and produce sound. The sound-generating unit 12 can be a diaphragm, referred to as a sound-generating membrane, which further facilitates the vibration of the sound-generating unit 12. The sound-generating membrane may include a composite aluminum membrane or a carbon nanotube aluminum-carbon membrane. Composite aluminum membranes and carbon nanotube aluminum-carbon membranes have low heat capacity and good thermal conductivity, which is more conducive to heat dissipation of the sound-generating body 1. Of course, the sound-generating membrane 122 can also be made of other materials with low heat capacity and good thermal conductivity, which will not be elaborated here.

[0051] This sound-generating device produces sound by driving the sound-generating unit 12 to vibrate through the expansion and contraction of the heat-sensitive gas 6. It eliminates the need for structures such as magnets and voice coils, simplifying the device's structure and reducing its size. Furthermore, it avoids the use of rare-earth materials such as neodymium iron boron, thus lowering the cost of the sound-generating device.

[0052] In one exemplary embodiment, a sound-generating device is provided. (Reference) Figure 1 As shown, in this sound-generating device, the sound-generating body 1 may include a support unit 11, the support unit 11 includes an opening, and the sound-generating unit 12 is located at the opening. The sound-generating unit 12 is connected to the edge of the opening of the support unit 11, and the support unit 11 is used to support the sound-generating unit 12, so that the sound-generating unit 12 can vibrate relative to the support unit 11 to realize the sound generation of the sound-generating unit 12.

[0053] The support unit 11 may include a metal shell 111, which may be configured as a slot-shaped structure with an opening on one side. The sound-generating unit 12 is located at the opening of the metal shell 111. The metal shell 111 has good thermal conductivity, facilitating heat dissipation to quickly reduce the temperature of the heat-sensitive gas 6 and achieve the contraction of the heat-sensitive gas 6. The metal shell 111 may be made of stainless steel through stamping and laser welding processes.

[0054] For example, the sound-generating unit 12 may include a sound-generating diaphragm and a folded ring structure 121. The sound-generating diaphragm 122 is located radially inside the folded ring structure 121 and is connected to the folded ring structure 121. The outer edge of the folded ring structure 121 is connected to the opening edge of the metal shell 111. The folded ring structure 121 not only enables the connection between the sound-generating diaphragm 122 and the metal shell 111, but also, due to its bends, facilitates the vibration and sound generation of the sound-generating diaphragm 122.

[0055] The generating membrane 122 can be a dome-shaped membrane to improve its structural stability and further facilitate its vibration and sound generation. The generating membrane 122 and the folded ring structure 121 can be made of the same material, and the generating membrane 122 and the folded ring structure 121 can be either integrally formed or separate structures, without limitation.

[0056] In addition, the support unit 11 in this sound-generating device may also include a passive heat dissipation layer 112, which is located on the outside of the metal shell 111 to further accelerate the cooling of the heat-sensitive gas 6. The passive heat dissipation layer 112 can be made of a material with better thermal conductivity. For example, the passive heat dissipation layer 112 may include graphite sheets attached to the outside of the metal shell 111. The graphite sheets may completely cover the outside of the metal shell 111 or only be attached to a portion of the outside of the metal shell 111. Understandably, the larger the area of ​​the graphite sheets covering the outside of the metal shell 111, the better the heat dissipation effect of the support unit 11. However, the smaller the area of ​​the graphite sheets covering the outside of the metal shell 111, the lower the cost.

[0057] In this sound-generating device, the support unit 11, which is composed of a metal shell 111 and a graphite sheet, provides support for the sound-generating unit 12. Furthermore, the metal shell 111 and the graphite sheet can increase the cooling rate of the heat-sensitive gas 6, so as to better drive the sound-generating unit 12 (e.g., the generating membrane 122) to vibrate and generate sound through the expansion and contraction of the heat-sensitive gas 6.

[0058] It should be noted that the sound-generating device may also include an active heat dissipation unit (not shown in the figure), which is configured to actively dissipate heat from the support unit 11. The active heat dissipation unit may include a fan with its air outlet facing the support unit 11 to actively dissipate heat. The active heat dissipation unit may also include a liquid cooling device, for example, a liquid cooling fin attached to the outside of the support unit 11 to actively dissipate heat. Of course, the active heat dissipation unit may also include both the aforementioned fan and liquid cooling device, and may also include other structures capable of active heat dissipation, which will not be elaborated upon here.

[0059] In one exemplary embodiment, a sound-generating device is provided. (Reference) Figure 1 As shown, in this sound-generating device, the heating unit 2 is not in contact with the sound-generating body 1. That is, the heating unit 2 is suspended in a closed space, so the sound-generating body 1 will not directly conduct the heat of the heating unit 2, allowing more of the heat of the heating unit 2 to be transferred to the heat-sensitive gas 6.

[0060] In addition, the heating unit 2 is suspended in the enclosed space, which allows for more uniform heating of the heat-sensitive gas 6. Specifically, the heating unit 2 can be located at the geometric center of the enclosed space to better achieve uniform heating of the heat-sensitive gas 6.

[0061] The sound-generating device may include a connecting unit 3, through which the heating unit 2 and the support unit 11 are fixedly connected, so that the heating unit 2 is fixedly suspended in a sealed space. The connecting unit 3 may be an insulated component to better prevent the heating unit 2 from transferring heat to the support unit 11 through the connecting unit 3. The insulated component may be made of an insulating material or a material with poor thermal conductivity, such as a plastic component.

[0062] Additionally, the sound-generating device may include a power amplifier unit 5, which is connected to the heating unit 2 and is used to output audio information to the heating unit 2. The power amplifier unit 5 is configured to determine the output audio information based on the audio information to be played and the temperature information of the heating unit 2.

[0063] In this sound-generating device, the power amplifier unit 5 can be preset with an algorithm model. This algorithm model can determine the output audio information based on the audio information to be played and the temperature information of the heating unit 2. This algorithm model can be modeled and determined using specialized modeling software (such as MATLAB). Based on the sound generation principle of this sound-generating device, modeling generally requires using the heat dissipation coefficient of the sound-generating body 1, the amplitude information of the sound-generating unit 12, the expansion coefficient of the heat-sensitive gas 6, the temperature coefficient of the material of the heating unit 2, the linear relationship between the temperature of the heating unit 2 and the impedance of the heating unit 2, etc.

[0064] It should be noted that the heating unit 2 can be connected to the power amplifier unit 5 via the connecting wire 4 to achieve electrical connection between the heating unit 2 and the power amplifier unit 5. The power amplifier unit 5 can then transmit output audio information to the heating unit 2 via the connecting wire 4 to control the temperature of the heating unit 2. The connecting wire 4 can be located inside the insulation component to simplify the overall structure of the sound-generating device.

[0065] In this sound-generating device, the power amplifier unit 5 determines the output audio information, and controls the heating state of the heating unit 2 by controlling the output audio information, thereby controlling the expansion and contraction of the heat-sensitive gas 6, so that the sound-generating unit 12 emits the required sound through vibration.

[0066] In one exemplary embodiment, a sound-generating device is provided. (Reference) Figure 1As shown, in this sound-generating device, the heating unit 2 includes a voice coil, and the generating body includes a metal shell 111, a folded ring structure 121, and a generating diaphragm 122. Graphite sheets are attached to the outside of the metal shell 111 to accelerate heat dissipation. The generating diaphragm 122 is connected to the opening of the metal shell 111 through the folded ring structure 121. The voice coil is connected to the power amplifier unit 5 through two connecting wires 4. At the position where the connecting wires 4 pass through the metal shell 111, a heat insulation layer is wrapped around the outside of the connecting wires 4. This heat insulation layer is referred to as the heat insulation component. The heat insulation component and the connecting wires form a connecting unit 3, which is used to achieve a fixed connection between the voice coil and the metal shell 111.

[0067] In addition, the position where the connecting wire 4 passes through the metal shell 111 is set to be sealed to ensure that the metal shell 111, the generating membrane 122 and the folded ring structure 121 form a closed space. The closed space is filled with heat-sensitive gas 6, and the voice coil is fixed and suspended at the geometric center of the closed space by the heat insulation component to better ensure uniform heating of the heat-sensitive gas 6.

[0068] When the sound-generating device is working, the power amplifier unit 5 determines the output audio information based on the audio information to be played and the temperature information of the heating unit 2. For example, the power amplifier unit 5 can control the output audio information through pulse width modulation (PWM) to heat the voice coil. The heating of the voice coil causes the heat-sensitive gas 6 to heat up and expand. Since the heat-sensitive gas 6, the metal shell 111, and the graphite sheet have good thermal conductivity and low heat capacity, they can dissipate heat quickly during the PWM gap, causing the heat-sensitive gas 6 to cool down and contract, thereby completing the vibration of the generating diaphragm 122 in response to the output audio information to produce sound.

[0069] In addition, the power amplifier unit 5 in this sound-generating device can monitor the voice coil temperature in real time to regulate the output audio information, which can not only ensure that the sound-generating device produces accurate sound, but also protect the voice coil from being burned out.

[0070] In this sound-generating device, there is no need to set up a new structural heating unit 2; instead, a voice coil is directly used as the heating unit 2. Furthermore, the voice coil is fixed and suspended at the geometric center of the enclosed space to achieve uniform heating of the heat-sensitive gas 6. Compared to related technologies, the voice coil in this sound-generating device remains fixed, and its sole function is to heat the heat-sensitive gas 6, causing it to expand. Combined with the heat dissipation of heat from the sound-generating body 1, the heat-sensitive gas 6 cools and contracts. The expansion and contraction of the heat-sensitive gas 6 drive the vibration of the sound-generating unit 12 to produce sound.

[0071] This sound-generating device achieves sound production through the aforementioned thermoacoustic effect, eliminating the need for magnets, voice coils, and other structural components, thus simplifying the device's structure and reducing its size. Furthermore, it avoids the use of rare-earth materials such as neodymium iron boron, further reducing the device's cost.

[0072] In one exemplary embodiment, a terminal is provided, such as a mobile phone, a laptop computer, a tablet computer, and a wearable device.

[0073] The terminal includes the aforementioned sound-generating device. Due to its simple structure and small size, the sound-generating device frees up more space in the terminal for other components. Furthermore, this device avoids the use of rare-earth materials such as neodymium iron boron, reducing the cost of the sound-generating device and thus lowering the overall cost of the terminal.

[0074] The aforementioned sound-generating device may be referred to as the first sound-generating device. The terminal may also include a second sound-generating device, which may include an electromagnetic moving-coil sound-generating device, a piezoelectric film sound-generating device, or both. Of course, the second sound-generating device may also include other forms of sound-generating devices, which will not be elaborated upon here.

[0075] The first sound-generating device produces sound by driving the sound-generating unit to vibrate based on the thermoacoustic effect. When the temperature of the heating unit of the first sound-generating device reaches a certain value (which could be the melting point of the heating unit), it may cause damage to the heating unit. Therefore, when the temperature of the heating unit approaches the aforementioned certain value, the second sound-generating device can be used to produce sound, in order to better meet the user's sound generation needs.

[0076] It should also be noted that since the first sound-generating device is based on the thermoacoustic effect to drive the sound-generating unit, it cannot quickly adjust the switching between high and low frequencies. When a rapid switching between high and low frequencies is required, the second sound-generating device can be used to maintain a good sound effect and better meet the user's needs.

[0077] In one exemplary embodiment, a sound control method is provided, applied to the aforementioned terminal. (Reference) Figure 2 As shown, the method may include:

[0078] S110: Obtain the audio information to be played, and the temperature information of the heating unit of the first sound-generating device;

[0079] S120. Under the condition that the set conditions are met, process the audio information to be played and the temperature information according to the set algorithm model, and determine the output audio information.

[0080] S130. Control the heating unit according to the output audio information so that the first sound-generating device outputs the audio represented by the audio information to be played.

[0081] In step S110, the audio information to be played can be transmitted from the processor (CPU) to the power amplifier unit of the first sound-emitting device, or from the application processor of the audio software to the power amplifier unit, so that the power amplifier unit can obtain the audio information to be played.

[0082] The temperature information of the heating unit of the first sound-generating device can be obtained by a temperature sensor. After the temperature sensor detects the temperature information, it can transmit it to the power amplifier unit, or the temperature sensor can transmit the temperature information to the power amplifier unit through a processor, so that the power amplifier unit can obtain the temperature information.

[0083] In step S120, the setting conditions may include that the temperature value represented by the temperature information is less than or equal to a set temperature value. The set temperature value may be a temperature value that is 10°C lower than the melting point temperature of the heating unit (or other values, which are not limited here). The set temperature value may be set before the first sound-generating device leaves the factory or after the first sound-generating device leaves the factory. Furthermore, the user may modify or reset the setting algorithm model to better meet user needs.

[0084] In this step, after determining the temperature information of the heating unit, the temperature value represented by this information is compared with the set temperature value. If the temperature value represented by this information is less than or equal to the set temperature value, the set condition is met, indicating that the heating unit will not burn out, and the first sound-emitting device can then be used to produce sound. Therefore, the audio information to be played and the temperature information can be further processed according to the set algorithm model to determine the output audio information.

[0085] The algorithm model can be set before the first sound-generating device leaves the factory or after the first sound-generating device leaves the factory. Furthermore, users can modify or reset the algorithm model to better meet their needs.

[0086] The algorithm model can be set in the power amplifier unit. This model determines the output audio information based on the audio information to be played and the temperature information of the heating unit. This algorithm model can be determined using specialized modeling software (such as MATLAB). Based on the sound generation principle of this first sound-generating device, modeling typically requires using the heat dissipation coefficient of the sound-generating body, the amplitude information of the sound-generating unit, the expansion coefficient of the heat-sensitive gas, the temperature coefficient of the heating unit material, the linear relationship between the temperature and impedance of the heating unit, and so on.

[0087] In step S130, after the output audio information is determined, the power amplifier unit can determine the output audio information to the heating unit to control the heating state of the heating unit, thereby controlling the expansion and contraction of the heat-sensitive gas, so that the sound-emitting unit emits the audio represented by the audio information to be played through vibration, that is, so that the first sound-emitting device emits the sound that needs to be emitted.

[0088] The first sound-generating device used in this method has a simpler structure, allowing for a smaller size. Furthermore, it avoids the use of rare-earth materials such as neodymium iron boron, thus reducing the cost of the first sound-generating device.

[0089] It should be noted that after determining the temperature information of the heating unit, if the temperature value represented by this information is greater than the set temperature value, the set condition is not met, indicating that the heating unit is at risk of burning out, and the first sound-emitting device cannot be used to emit sound. In this case, if the user still needs the terminal to emit sound, the second sound-emitting device can be controlled to emit sound to meet the user's needs. In an exemplary embodiment, a sound emission control method is provided, applied to the aforementioned terminal. In this terminal, the first sound-emitting device may include an active heat dissipation unit. (Reference) Figure 2 As shown, the method may include:

[0090] The efficiency of the active cooling unit is controlled based on temperature information.

[0091] Among these, the temperature value represented by the temperature information is positively correlated with the working efficiency. That is, the higher the temperature value of the heat-generating unit, the higher the working efficiency of the active cooling unit.

[0092] Understandably, the higher the temperature of the heating unit, the higher the temperature of the heat-sensitive gas, and the higher the temperature of the support unit. The first heating device then needs to dissipate heat more quickly. Therefore, the working efficiency of the active heat dissipation unit should be set higher to better meet the heat dissipation needs of the first heating device, thereby achieving a better sound output effect.

[0093] The terminal can be configured with settings, including a mapping between set temperature information and set operating efficiency. Once the terminal determines the temperature of the heating unit, it can find the matching set temperature information in the configuration information, and then set the corresponding operating efficiency as the target operating efficiency. The active cooling unit is then controlled to operate at the target operating efficiency.

[0094] The set temperature information can be a temperature range. The temperature information of the heating unit can be the temperature value of the heating unit. In this method, the temperature range to which the above temperature value belongs can be determined as a temperature range that matches the temperature value. In addition, when the active cooling unit includes a fan, the operating efficiency can include the speed of the motor in the fan. When the active cooling unit includes a liquid cooling device, the operating efficiency can include the flow rate of the cooling medium in the liquid cooling device, etc.

[0095] In this method, the active heat dissipation unit can be controlled to work at an appropriate efficiency based on the temperature information of the heating unit, so as to meet the heat dissipation requirements of the first sound-generating device, thereby better ensuring the sound-generating effect of the first sound-generating device and improving the user experience.

[0096] In one exemplary embodiment, a sound control device is provided, applied to the aforementioned terminal. This device is used to implement the aforementioned sound control method. (Reference) Figure 3 As shown, the device may include an acquisition module 101, a determination module 102, and a control module 103. During the implementation of the above method,

[0097] The acquisition module 101 is used to acquire the audio information to be played and the temperature information of the heating unit of the first sound-generating device;

[0098] The determining module 102 is used to process the audio information to be played and the temperature information according to the set algorithm model under the determined set conditions, and determine the output audio information;

[0099] The control module 103 is used to control the heating unit according to the output audio information so that the first sound-generating device outputs the audio represented by the audio information to be played.

[0100] In one exemplary embodiment, a sound control device is provided, applied to the aforementioned terminal. (See reference...) Figure 3 As shown, in this device, the control module 103 is used for:

[0101] The operating efficiency of the active heat dissipation unit of the sound-generating device is controlled based on temperature information.

[0102] In one exemplary embodiment, a sound control device is provided, applied to the aforementioned terminal. (See reference...) Figure 3 As shown, in this device, the control module 103 is used for:

[0103] If the set conditions are not met, control the second sound-emitting device to emit sound.

[0104] In one exemplary embodiment, a terminal is provided, such as a mobile phone, laptop computer, tablet computer, and wearable device. The terminal includes the aforementioned sound-generating device. Because the sound-generating device has a simple structure and small size, more space can be freed up in the terminal for other components. Furthermore, this sound-generating device avoids the use of rare earth materials such as neodymium iron boron, reducing the cost of the sound-generating device and thus lowering the overall cost of the terminal.

[0105] refer to Figure 4 As shown, terminal 400 may include one or more of the following components: processing component 402, memory 404, power supply component 406, multimedia component 408, audio component 410, input / output (I / O) pins 412, sensor component 414, and communication component 416.

[0106] Processing component 402 typically controls the overall operation of terminal 400, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 402 may include one or more processors 420 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 402 may include one or more modules to facilitate interaction between processing component 402 and other components. For example, processing component 402 may include a multimedia module to facilitate interaction between multimedia component 408 and processing component 402.

[0107] Memory 404 is configured to store various types of data to support operation on terminal 400. Examples of this data include instructions for any application or method operating on terminal 400, contact data, phonebook data, messages, pictures, videos, etc. Memory 404 can be implemented by any type of volatile or non-volatile storage terminal 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.

[0108] Power supply component 406 provides power to various components of terminal 400. Power supply component 406 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal 400.

[0109] Multimedia component 408 includes a screen that provides an output pin between terminal 400 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 408 includes a front-facing camera module and / or a rear-facing camera module. When terminal 400 is in an operating mode, such as shooting mode or video mode, the front-facing camera module and / or rear-facing camera module may receive external multimedia data. Each front-facing camera module and rear-facing camera module may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0110] Audio component 410 is configured to output and / or input audio signals. For example, audio component 410 includes a microphone (MIC) configured to receive external audio signals when terminal 400 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 404 or transmitted via communication component 416. In some embodiments, audio component 410 also includes a speaker for outputting audio signals.

[0111] I / O pin 412 provides pins between the processing component 402 and peripheral pin modules, such as a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to, a home button, volume buttons, a power button, and a lock button.

[0112] Sensor assembly 414 includes one or more sensors for providing state assessments of various aspects of terminal 400. For example, sensor assembly 414 may detect the on / off state of terminal 400, the relative positioning of components such as the display and keypad of terminal 400, changes in the position of terminal 400 or a component of terminal 400, the presence or absence of user contact with terminal 400, the orientation or acceleration / deceleration of terminal 400, and temperature changes of terminal 400. Sensor assembly 414 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 414 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0113] Communication component 416 is configured to facilitate wired or wireless communication between terminal 400 and other terminals. Terminal 700 can access wireless networks based on communication standards, such as WiFi, 2G, 3G, 4G, 5G, or combinations thereof. In one exemplary embodiment, communication component 416 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 416 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.

[0114] In an exemplary embodiment, terminal 400 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing terminals (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0115] In one exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 404 including instructions, which can be executed by a processor 420 of a terminal 400 to perform the described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage terminal, etc. When the instructions in the storage medium are executed by the terminal's processor, the terminal is able to perform the method shown in the above embodiments.

[0116] 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 claims.

[0117] 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.

[0118] 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 sound-generating device, characterized in that, The sound-generating device includes a sound-generating body and a heating unit. The sound-generating body includes a sealed space, which is filled with a heat-sensitive gas, and the heating unit is housed in the sealed space. The sound-generating body includes a sound-generating unit. The heating unit is used to heat the heat-sensitive gas to make it expand. The sound-generating body is used to cool the heat-sensitive gas to make it contract. The expansion or contraction of the heat-sensitive gas drives the sound-generating unit to vibrate and generate sound.

2. The sound-generating device according to claim 1, characterized in that, The heating unit is located at the geometric center of the enclosed space, and the heating unit includes a voice coil.

3. The sound-generating device according to claim 1, characterized in that, The sound-generating body includes a support unit, the support unit includes an opening, and the sound-generating unit is located at the opening; The sound-generating device includes a connecting unit, and the heating unit and the supporting unit are fixedly connected through the connecting unit.

4. The sound-generating device according to claim 3, characterized in that, The support unit includes a metal shell and a passive heat dissipation layer, with the passive heat dissipation layer located on the outside of the metal shell.

5. The sound-generating device according to claim 3, characterized in that, The sound-generating device includes an active heat dissipation unit, which is configured to actively dissipate heat from the support unit.

6. The sound-generating device according to claim 3, characterized in that, The sound-generating unit includes a sound-generating diaphragm and a folded ring structure. The sound-generating diaphragm is constructed as a dome-shaped diaphragm, and the sound-generating diaphragm is connected to the support unit through the folded ring structure.

7. The sound-generating device according to any one of claims 1-6, characterized in that, The heat-sensitive gas includes helium and / or hydrogen.

8. The sound-generating device according to any one of claims 1-6, characterized in that, The sound-generating device includes a power amplifier unit, which is connected to the heating unit. The power amplifier unit is configured to determine the output audio information based on the audio information to be played and the temperature information of the heating unit.

9. A terminal, characterized in that, The terminal includes a first sound-emitting device, which is the sound-emitting device as described in any one of claims 1-8.

10. The terminal according to claim 9, characterized in that, The terminal also includes a second sound-generating device, which includes an electromagnetic moving coil sound-generating device and / or a piezoelectric film sound-generating device.

11. A sound control method, applied to the terminal as described in claim 9 or 10, characterized in that, The method includes: Acquire the audio information to be played, as well as the temperature information of the heating unit of the first sound-generating device; Under the condition that the set conditions are met, the audio information to be played and the temperature information are processed according to the set algorithm model to determine the output audio information; The heating unit is controlled according to the output audio information so that the first sound-generating device outputs the audio represented by the audio information to be played.

12. The method according to claim 11, characterized in that, The algorithm model is determined through modeling based on the following parameters: The heat dissipation coefficient of the sound-generating body of the first sound-generating device, the amplitude information of the sound-generating unit of the first sound-generating device, the expansion coefficient of the heat-sensitive gas of the first sound-generating device, the temperature coefficient of the material of the heating unit of the first sound-generating device, and the linear relationship between the temperature of the heating unit and the impedance of the heating unit.

13. The method according to claim 11, characterized in that, The method includes: Based on the temperature information, the power of the active heat dissipation unit of the first sound-generating device is controlled.

14. The method according to claim 11, characterized in that, The method includes: If the set conditions are not met, control the second sound-emitting device to emit sound.

15. A sound control device, applied to the terminal as described in claim 9 or 10, characterized in that, The device includes: The acquisition module is used to acquire the audio information to be played, as well as the temperature information of the heating unit of the first sound-generating device; The determining module is used to process the audio information to be played and the temperature information according to a set algorithm model, under the condition that the set conditions are met, and to determine the output audio information; The control module is used to control the heating unit according to the output audio information, so that the first sound-generating device outputs the audio represented by the audio information to be played.

16. A terminal, characterized in that, The terminal includes: processor; First memory used to store executable instructions of the processor; The processor is configured to perform the method as described in any one of claims 11-14.

17. A non-transitory computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the terminal, the terminal is able to perform the method as described in any one of claims 11-14.

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