WO2024001979A1 - 电子设备 - Google Patents

电子设备 Download PDF

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Publication number
WO2024001979A1
WO2024001979A1 PCT/CN2023/102275 CN2023102275W WO2024001979A1 WO 2024001979 A1 WO2024001979 A1 WO 2024001979A1 CN 2023102275 W CN2023102275 W CN 2023102275W WO 2024001979 A1 WO2024001979 A1 WO 2024001979A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
sound
diaphragm
cavity
hole
Prior art date
Application number
PCT/CN2023/102275
Other languages
English (en)
French (fr)
Inventor
郑宁杰
魏杨
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2024001979A1 publication Critical patent/WO2024001979A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities

Definitions

  • the present invention relates to the technical field of electronic equipment design, and in particular to an electronic equipment.
  • the call function is a basic function of some electronic devices and is implemented by the sound-generating device of the electronic device.
  • the sound of the electronic device will be leaked into the external environment, which in turn will lead to the leakage of the user's privacy.
  • the electroacoustic device is provided with an opening connected to the rear cavity.
  • the vibration of the diaphragm of the sound-generating device can cause the third sound transmitted from the opening to
  • the sound wave and the second sound wave emitted from the front cavity of the electroacoustic device form an anti-phase sound wave, which ultimately achieves a certain degree of cancellation, thereby alleviating sound leakage.
  • the existence of the opening will connect the back cavity of the sound-generating device to the external environment, which will make it easier for foreign matter (liquids, solid particles, etc.) to intrude into the sound-generating device, thereby making electronic equipment more susceptible to intrusion by foreign matter.
  • the invention discloses an electronic device that simultaneously solves the problems of foreign matter easily intruding into the interior of the electronic device and sound leakage.
  • the present invention is implemented as follows:
  • This application discloses an electronic device, which includes an equipment housing, a sound-emitting device and a screen.
  • the screen cover is provided on the equipment housing, and a first sound outlet is provided at the connection point with the equipment housing.
  • the sound-generating device is provided in the equipment housing.
  • the sound-generating device includes a device housing and an electroacoustic module.
  • the electroacoustic module includes a first diaphragm and a second diaphragm.
  • the device housing is connected to the device housing respectively.
  • the first diaphragm is connected to the second diaphragm, and the device housing is provided with a second sound hole;
  • At least a first front cavity is surrounded by the device housing, the screen, the equipment housing and the first diaphragm, and the first front cavity is connected with the first sound outlet;
  • At least a second front cavity is surrounded by the device housing and the second diaphragm, and the second front cavity is connected with the second sound hole;
  • the first sound wave formed by the vibration of the first diaphragm and the second sound wave formed by the vibration of the second diaphragm have opposite phases.
  • the electronic device disclosed in this application improves the structure of the electronic device in the related art, so that the electronic device can respectively form a first front cavity connected to the first sound hole and a second front cavity connected to the second sound hole. , and furthermore, in the first state, the first sound wave transmitted through the first sound outlet and the second sound wave transmitted through the second sound outlet can be offset to a certain extent due to the opposite phases, thereby solving the problem of sound leakage. .
  • the first front cavity and the second front cavity transmit the first sound wave and the second sound wave with opposite phases, and the sound leakage problem can be solved by canceling the sound waves, it is possible to avoid opening an opening in the sound-generating device that communicates with the rear cavity, and thus It can avoid the problem of the rear cavity being invaded by foreign objects, thereby solving the problem of electronic equipment being easily invaded by foreign objects.
  • Figure 1 is a schematic structural diagram of a sound-generating device disclosed in an embodiment of the present application.
  • Figure 2 is a schematic diagram of the exploded structure of the electronic device disclosed in the embodiment of the present application.
  • Figure 3 is an enlarged schematic diagram of part of the structure in Figure 2;
  • Figure 4 is a partial structural cross-sectional view of an electronic device disclosed in the embodiment of the present application.
  • Figure 5 is a partial appearance diagram of the electronic device shown in Figure 4.
  • Figure 6 is a schematic structural diagram of another sound-generating device disclosed in the embodiment of the present application.
  • Figure 7 is a cross-sectional view of a partial structure of another electronic device disclosed in the embodiment of the present application.
  • Figure 8 is a partial structural schematic diagram of another electronic device disclosed in the embodiment of the present application.
  • Figure 9 is a comparison chart of sound leakage curves.
  • the embodiment of the present application discloses an electronic device.
  • the disclosed electronic device may be a mobile phone, a tablet computer, an e-book reader, a game console, etc.
  • the embodiment of the present application does not limit the specific type of the electronic device.
  • the electronic device disclosed in the embodiment of the present application includes a device housing 100 , a sound-generating device 200 and a screen 300 .
  • the device housing 100 is a basic component of the electronic device, which can directly or indirectly provide a mounting base for other components of the electronic device, and can also provide protection for at least some other components of the electronic device.
  • the screen 300 and the sound-emitting device 200 can be directly or indirectly provided on the device housing 100 to achieve installation on the device housing 100 .
  • the sound-generating device 200 is disposed in the equipment housing 100, and is installed based on the equipment housing 100, while being protected by the equipment housing 100.
  • the screen 300 is covered on the device housing 100 .
  • the screen 300 and the device housing 100 can be bonded and fixed through an adhesive layer.
  • a first sound hole 310 is provided at the connection between the screen 300 and the device housing 100 .
  • the device housing 100 is provided with a second sound hole 1111.
  • the first sound hole 310 and the second sound hole 1111 are both used for sound output.
  • the first sound hole 310 may be opened on the edge of the screen 300 connected to the device housing 100 , or may be opened on the edge of the device housing 100 connected to the screen 300 .
  • the connecting parts of the two can be spliced to form the first sound hole 310 .
  • the embodiment of the present application does not limit the specific position and formation method of the first sound hole 310 .
  • the screen 300 and the device housing 100 have an assembly relationship, and the screen 300 and the device housing 100 are assembled so that there is an assembly gap at the connection between the screen 300 and the device housing 100 , and the assembly gap can be as The first sound hole 310.
  • the assembly gap is usually small in size, and using the assembly gap as the first sound hole 310 has the advantage of better preventing foreign matter from intruding into the interior of the electronic device.
  • the sound-emitting device 200 is a device of an electronic device that can emit sound, and the sound-emitting device 200 is disposed within the device housing 100 . Specifically, the sound-generating device 200 can be fixedly installed in the device housing 100 through adhesion, connector connection, snap-in, etc.
  • the sound-generating device 200 includes a device housing 210 and an electro-acoustic module 220.
  • the device housing 210 is the shell part of the sound-generating device 200.
  • the electro-acoustic module 220 is the sound generating part of the sound-generating device 200.
  • the electro-acoustic module 220 Located inside the device housing 210. Specifically, the electroacoustic module 220 is fixed in the device housing 210, and the device housing 210 is connected to the equipment housing 100, thereby realizing the installation of the electroacoustic module 220 and the device housing 210 in the equipment housing 100.
  • the device housing 210 and the equipment housing 100 can be connected through fixing methods such as bonding, snapping, and connector connection.
  • the electroacoustic module 220 includes a first diaphragm 221 and a second diaphragm 222.
  • the vibration of the first diaphragm 221 can form a first sound wave
  • the vibration of the second diaphragm 222 can form a second sound wave.
  • the vibration direction of the first diaphragm 221 and the vibration direction of the second diaphragm 222 may be the same or different.
  • the electroacoustic module 220 is provided in the device housing 210.
  • the device housing 210 is connected to the first diaphragm 221 and the second diaphragm 222 respectively.
  • At least the first front cavity 101 is surrounded by the device housing 210, the screen 300, the equipment housing 100 and the first diaphragm 221.
  • the first front cavity 101 is connected with the first sound hole 310.
  • the vibration of the first diaphragm 221 generates The first sound wave will pass through the first front cavity 101 in sequence and the first sound hole 310 to spread to the environment where the electronic device is located, thereby achieving sound generation.
  • At least the second front cavity 102 is surrounded by the device housing 210 and the second diaphragm 222, and the second front cavity 102 is connected with the second sound hole 1111.
  • the second sound wave generated by the vibration of the second diaphragm 222 will sequentially pass through the second front cavity 102 and the second sound hole 1111 and propagate to the environment where the electronic device is located, thereby achieving sound generation.
  • the electroacoustic module 220 disclosed in the embodiment of the present application has a first state.
  • the first sound wave formed by the vibration of the first diaphragm 221 and the second sound wave formed by the vibration of the second diaphragm 222 have opposite phases.
  • the first sound wave and the second sound wave with opposite phases can be superimposed when transmitted out of the electronic device, thereby achieving a certain degree of cancellation, thereby mitigating the first sound wave and the second sound wave from propagating to distant areas and being blocked by other devices.
  • the phenomenon that people hear can alleviate sound leakage.
  • the electronic device disclosed in the embodiment of the present application improves the structure of the electronic device in the related art, so that the electronic device can form a first front cavity 101 connected with the first sound hole 310 and a second sound hole 1111 respectively.
  • the second front cavity 102 can further enable the first sound wave transmitted through the first sound hole 310 and the second sound wave transmitted through the second sound hole 1111 to achieve a certain degree of phase reversal in the first state. offset, thus solving the problem of sound leakage. Since the first front cavity 101 and the second front cavity 102 transmit the first sound wave and the second sound wave with opposite phases, and the sound leakage problem can be solved by canceling the sound waves, it is possible to avoid opening an opening in the sound-generating device that communicates with its rear cavity. hole, thereby preventing the back cavity from being invaded by foreign matter, thereby solving the problem of electronic equipment being easily invaded by foreign matter.
  • the device housing 210 may be an integrated structure. For example, it may be formed from a piece of housing material by bending, cold pressing, etc. During the forming process, the electroacoustic module 220 may be directly wrapped. Thus, the electroacoustic module 220 and the device housing 210 are assembled and connected.
  • the device housing 210 may be of a split structure and include a first housing 211 and a second housing 212. Body 212 is connected. Specifically, the first housing 211 and the second housing 212 can be assembled and connected through bonding, welding, or other methods. This structure can realize the connection between the first housing 211 and the second housing 212 through assembly without using more complicated process equipment, so it has the advantage of convenient assembly.
  • the electroacoustic module 220 has an assembly relationship with the device housing 210
  • at least one of the first housing 211 and the second housing 212 has an assembly relationship with the electroacoustic module 220 .
  • the first housing 211 is connected to the first diaphragm 221
  • the second housing 212 is connected to the second diaphragm 222, thereby realizing the connection between the device housing 210 and the electroacoustic module 220. connect.
  • the first housing 211 and the first diaphragm 221 can be connected by bonding.
  • the second housing 212 and the second diaphragm 222 can also be connected by bonding.
  • connection between the first housing 211 and the second housing 212 can cause a conflicting fit between the first housing 211 and the first diaphragm 221 and between the second housing 212 and the second diaphragm 222, so that To realize the assembly connection between them, of course, in this case, the sound-generating device 200 can be clamped by the first housing 211 and the second housing 212 to achieve fixed installation.
  • the conflicting fit is also a connection.
  • the first front cavity 101 is at least surrounded by the first housing 211, the screen 300, the device housing 100 and the first diaphragm 221
  • the second front cavity 102 is at least surrounded by the second housing 212 and the second diaphragm 222 .
  • the components of the device housing 210 i.e., the first housing 211 and the second housing 212 of a split structure are respectively cooperated with the electroacoustic module 220 to form the first front cavity 101 and the second front cavity 102. It can be easily achieved through assembly between components.
  • the electroacoustic module 220 disclosed in the embodiment of the present application has a first state, because in the first state, the first sound wave and the second sound wave are opposite sound waves to each other, and will proceed to a certain extent during the propagation process. Therefore, when the electroacoustic module 220 is in the first state, the sound-generating device 200 Makes less noise. In this case, the sound-generating device 200 is similar to a receiver. When the user uses the electronic device to talk, the sound-generator 200 functions as a receiver and can emit smaller sounds for the user to listen to at a close distance.
  • the sound emitted by the sound emitting device 200 will be offset in the process of propagating to the distance, which can make the call content less likely to be heard by other people in the distance, thus solving the problem of sound leakage and better protecting the privacy of the call. .
  • the electroacoustic module 220 may also have a second state.
  • the second state and the first state are different states.
  • the first sound wave formed by the vibration of the first diaphragm 221 and the second sound wave formed by the second diaphragm 222 have the same phase.
  • the first sound wave with the same phase The sound wave and the second sound wave are transmitted from the first sound hole 310 and the second sound hole 1111 respectively and then superimposed to achieve the purpose of enhancement, and finally realize the generation of louder sound.
  • the sound-generating device 200 is similar to a speaker and can function as a speaker.
  • the sound-generating device 200 can have the functions of both a receiver and a speaker, thereby avoiding the need for an electronic device to be equipped with a receiver and a speaker at the same time, thereby simplifying the structure of the electronic device. It should be noted that in this article, the control of whether the phases of the first sound wave and the second sound wave generated by the electroacoustic module 220 are the same or different is an existing technology and will not be described again here.
  • the sound-generating device 200 is a first speaker
  • the electronic device disclosed in the embodiment of the present application may also include a second speaker 400
  • the second speaker 400 is provided in the device housing 100 .
  • the second speaker 400 can also be fixed in the device housing 100 through bonding, snapping, connector connection, etc., thereby achieving installation.
  • the sound emission direction of the first speaker and the sound emission direction of the second speaker 400 may be the same or different.
  • the sound emission direction of the first speaker and the sound emission direction of the second speaker 400 are the same, which enables the electronic device to exert a stronger sound-raising effect.
  • the sound emission direction of the first speaker and the sound emission direction of the second speaker 400 are different, and thus the two speakers can respectively emit sounds in different directions.
  • This enables the electronic device to create a stereo sound effect in the speaker mode. This can improve the sound performance of electronic devices.
  • the sound emission direction of the first speaker and the sound emission direction of the second speaker 400 are different, and refer to the sound outlet of the first speaker (ie, the first sound outlet 310 and the second sound outlet 1111).
  • the direction is different from the direction of the sound hole of the second speaker 400 .
  • the sound-generating device 200 can be disposed at the top of the electronic device, and the second speaker 400 can be disposed at the bottom of the electronic device, as shown in Figure 2.
  • This layout makes it easier to realize the sound-emitting direction of the first speaker and the second speaker. 400 has different sound direction designs.
  • the sound-generating device 200 has a rear cavity 103, and the rear cavity 103 can realize the bass performance of the sound-generating device 200.
  • the first diaphragm 221 and the second diaphragm 222 are arranged opposite to each other, and a first sub-rear cavity 1031 is formed between the first diaphragm 221 and the second diaphragm 222.
  • the acoustic module 220 surrounds a second sub-rear cavity 1032.
  • the first sub-rear cavity 1031 and the second sub-rear cavity 1032 are connected.
  • the rear cavity 103 includes the first sub-rear cavity 1031 and the second sub-rear cavity 1032.
  • the rear cavity 103 of the sound-generating device 200 may only include the first sub-rear cavity 1031.
  • the second sub-rear cavity 1032 surrounded by the device housing 210 and the electroacoustic module 220 can cooperate with the first sub-rear cavity 1031, thereby making the rear cavity 103 The space is expanded, thereby further improving the bass performance of the sound emitting device 200.
  • the first diaphragm 221 and the second diaphragm 222 are arranged opposite to each other, so that the vibration directions of the two are consistent. Specifically, the first diaphragm 221 and the second diaphragm 222 can vibrate along the first direction, and the second sub-rear cavity 1032 is provided on the first side of the electroacoustic module 220 .
  • the second sub-rear cavity 1032 and the electroacoustic module 220 are sequentially distributed in a second direction, the first direction is perpendicular to the screen 300, and the second direction is perpendicular to the first direction.
  • This structure enables the second sub-rear cavities 1032 to be distributed sequentially in the second direction, thereby avoiding stacking in the direction perpendicular to the screen 300 .
  • the direction perpendicular to the screen 300 is the thickness direction of the electronic device, and the second sub-rear cavity 1032 is formed on the electroacoustic module 220 in the second direction.
  • stacking in the thickness direction of the electronic device can be avoided, thereby preventing the electronic device from becoming thicker, which is conducive to the design of the electronic device in a thinner direction.
  • the device housing 210 and the electroacoustic module 220 form a third sub-rear cavity 1033, and the third sub-rear cavity 1033 is connected to at least one of the first sub-rear cavity 1031 and the second sub-rear cavity 1032.
  • the third sub-rear cavity 1033 and the electro-acoustic module 220 are sequentially distributed in the second direction and located on the second side of the electro-acoustic module 220.
  • the first side and the second side are opposite sides of the electro-acoustic module 220.
  • This structure can expand the capacity of the rear cavity 103 by further adding a third sub-rear cavity 1033, so that the bass performance of the sound-generating device 200 can be better improved.
  • the height of the third sub-rear cavity 1033 decreases in the direction away from the electroacoustic module 220 . It should be noted that the height is the size of the third sub-rear cavity 1033 in the thickness direction of the electronic device. The thickness direction is perpendicular to the screen 300 .
  • the second front cavity 102 has a front cavity sound transmission channel 1021, and the second front cavity 102 communicates with the second sound hole 1111 through the front cavity sound transmission channel 1021.
  • the second sound hole 1111 is opened in the device housing 100.
  • the front cavity sound transmission channel 1021 can be stacked on the second sub-rear cavity 1032 in the thickness direction of the electronic device.
  • the opening of the front cavity sound transmission channel 1021 is close to the second sub-rear cavity 1032.
  • the direction of the sound hole 1111 gradually increases to achieve better sound output.
  • the above-mentioned third sub-rear cavity 1033 with decreasing height can better adapt to changes in the opening size of the front cavity sound transmission channel 1021.
  • the device housing 100 has an inner cavity 104 of the housing, and the sound-generating device 200 has a rear cavity 103.
  • the first diaphragm 221 can be a first waterproof diaphragm.
  • a front chamber 101 is isolated from the housing inner chamber 104 and the rear chamber 103 respectively, thereby preventing particles and liquids entering the first front chamber 101 from entering the housing inner chamber 104 or the rear chamber 103, thereby further improving the dustproof and waterproof performance.
  • the second diaphragm 222 may be a second waterproof diaphragm, and the second front cavity 102 is isolated from the housing inner cavity 104 and the rear cavity 103 respectively, thereby preventing the second front cavity from entering. cavity The particles and liquid in 102 enter the inner cavity 104 or the rear cavity 103 of the housing, thereby further improving the dustproof and waterproof performance.
  • the device housing 100 may include a frame 110 and a cover 120.
  • the frame 110 has a surrounding frame 111 and a support plate 112.
  • the support plate 112 is located in an area surrounded by the surrounding frame 111.
  • the screen 300 and the cover 120 are connected to opposite sides of the frame 110 respectively, and the cover 120 and the frame 110 enclose the inner cavity 104 of the housing.
  • the cover 120 may be a battery cover.
  • the support plate 112 and the surrounding frame 111 can be an integrated structure, or can be a split structure that is fixedly connected through assembly.
  • the sound-generating device 200 is disposed in the inner cavity 104 of the housing.
  • the support plate 112 is located between the sound-generating device 200 and the screen 300.
  • the support plate 112 is provided with a first through hole 1121.
  • a first through hole 1121 may be provided between the device shell 210 and the support plate 112.
  • Seal 201, the first seal 201 is provided around the first through hole 1121, and a second seal 202 can be provided between the support plate 112 and the screen 300.
  • the first diaphragm 221, the device shell The body 210, the support plate 112, the first sealing member 201, the second sealing member 202 and the screen 300 surround the first front cavity 101.
  • the equipment housing 100 with such a structure can not only enclose the inner cavity 104 of the housing, but also have a support plate 112 that provides an installation position for the sound-generating device 200.
  • the first sealing member 201 and the second sealing member 202 realize the first front sealing member 201 and the second sealing member 202. Sealing isolation between cavity 101 and housing interior cavity 104.
  • the support plate 112 can provide an installation position for the sound-generating device 200.
  • one of the support plate 112 and the device housing 210 can be provided with a positioning hole 1122, and the other can be provided with a positioning protrusion 2111.
  • the positioning hole 1122 and the positioning protrusion 2111 are positioned and matched.
  • the operator can first connect the positioning protrusion 2111 and the positioning hole 1122 to achieve pre-positioning, and then connect the device housing 210 and the support plate 112.
  • the device housing 210 and the support plate 112 can be connected through connectors (threaded connectors), bonding, etc.
  • the second sound hole 1111 can be opened on the surrounding frame 111, and the first sound hole 1111 of the device housing 210
  • the end face may be provided with a sound outlet connected to the second front cavity 102 (which can be considered as the port of the front cavity sound transmission channel 1021), and a third seal 203 may be provided between the first end face and the inner wall of the enclosure 111.
  • the two sound holes 1111 are connected with the sound outlet.
  • the second sound hole 1111 is opened on the surrounding frame 111, which makes it easier to realize a different orientation from the first sound hole 310, which is beneficial to improving the sound effect.
  • the second sound hole 1111 is opened on the frame 111, which makes it easier for the second sound hole 1111 to be exposed on the side of the electronic device. This design can make the second sound hole 1111 less likely to be noticed by people, and thus has the effect of It is beneficial to improve the appearance and performance of electronic equipment.
  • the device housing 210 may be provided with a second through hole 2112, and the support plate 112 may be provided with a third through hole 1123.
  • the second through hole 2112 and the first diaphragm 221 are located on the same side of the device housing 210. , the second through hole 2112 and the first diaphragm 221 both face the support plate 112, the third through hole 1123 can be in the same direction as the first through hole 1121, the second through hole 2112 is connected with the third through hole 1123, and the second front cavity 102 is connected with the second through hole 2112, and the second sound hole 1111 is opened on the surrounding frame 111.
  • the sound-generating device 200 also includes a first cover 230.
  • the first cover 230 is provided on the device shell 210 and is connected with the device shell.
  • the body 210 forms a connection channel 105.
  • the first cover 230 can be connected to the device housing 210 through bonding, snapping, etc.
  • the device housing 210 includes a first housing 211 and a second housing 212.
  • the second through hole 2112 may be opened in the first housing 211 .
  • the front cavity sound transmission channel 1021 is formed on the second housing 212.
  • the structure of the second housing 212 is relatively complex.
  • the second housing 212 may have a split structure.
  • the second housing 212 may include a second cover 2101 and a second housing body 2102.
  • the second housing body 2102 may be provided with a process hole, and the second cover 2101 may be installed. on the second shell body 2102, and seal the process hole.
  • the second shell body 2102 can be manufactured first, and then the second cover plate 2101 can be installed on the second shell body 2102.
  • the process holes can expose more of the internal structure of the second housing 212, the process holes can enable the fabrication of The process of making the second housing 212 is easier to implement.
  • the second shell body 2102 can be formed by injection molding, in which case the process holes are easier to demold.
  • the connection channel 105 connects the third through hole 1123 and the second sound hole 1111.
  • the electronic device may also include a fourth seal 204.
  • the fourth seal 204 is provided between the support plate 112 and the device housing 210 and surrounds the The second through hole 2112 and the third through hole 1123 are provided, and the fourth sealing member 204 and the first sealing member 201 may be disposed coplanarly. This structure enables the parts that need to be sealed between the sound-generating device 200 and the equipment housing 100 to be located on the same side of the device housing 210, which undoubtedly facilitates sealing design and is also conducive to sealing assembly.
  • the fourth seal 204 and the first seal 201 can be of an integrated structure, and avoidance holes are provided at the corresponding parts to avoid the corresponding through holes. In this case, only an integral structure needs to be installed. The sealing structural parts are enough, which is undoubtedly convenient for operation.
  • the first sealing member 201, the second sealing member 202, the third sealing member 203 and the fourth sealing member 204 may be sealing foam parts or sealing silicone parts.
  • the embodiment of the present application is not limited thereto. Their material.
  • the electronic device disclosed in the embodiment of the present application has lower sensitivity in the audible sound range.
  • the electronic equipment disclosed in the embodiments of the present application has a better effect of mitigating sound leakage.
  • the sound leakage curve of the second sound hole 1111 with an area of 3 mm 2 is a solid curve
  • the sound leakage curve of the second sound hole 1111 with an area of 5 mm 2 is a dotted curve.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Telephone Set Structure (AREA)

Abstract

本发明公开一种电子设备，包括设备壳体、发声装置和屏幕，屏幕盖设于设备壳体，且与设备壳体的连接处设有第一出音孔，发声装置设于设备壳体之内，发声装置包括装置壳体和电声模块，电声模块包括第一振膜和第二振膜，装置壳体分别与第一振膜和第二振膜相连，设备壳体开设有第二出音孔；至少由装置壳体、屏幕、设备壳体和第一振膜围成第一前腔，第一前腔与第一出音孔连通；至少由装置壳体和第二振膜围成第二前腔，第二前腔与第二出音孔连通；在电声模块处于第一状态下，第一振膜振动形成的第一声波和第二振膜振动形成的第二声波的相位相反。

Description

电子设备
交叉引用
本发明要求在2022年06月30日提交中国专利局、申请号为202210760536.8、发明名称为“电子设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本发明涉及电子设备设计技术领域，尤其涉及一种电子设备。
背景技术
通话功能是一些电子设备的基本功能，是由电子设备的发声装置来实现。在用户手持电子设备进行通话时，电子设备的声音会泄露到外部环境中，进而会导致用户的隐私泄露。为了改善漏声，在相关技术涉及的电子设备中，电声装置设有与后腔连通的开孔，在此种情况下，发声装置的振膜的振动，能够使得从开孔传出的第一声波和从电声装置的前腔传出的第二声波形成反相声波，最终实现一定程度的抵消，进而缓解漏声。但是，开孔的存在会使得发声装置的后腔与外部环境连通，进而更容易导致异物(液体、固体颗粒等)侵入到发声装置之内，进而导致电子设备存在较容易被异物侵入的弊端。
发明内容
本发明公开一种电子设备，以如何兼顾解决异物较容易侵入电子设备的内部和漏声的问题。
为了解决上述技术问题，本发明是这样实现的：
本申请公开一种电子设备，包括设备壳体、发声装置和屏幕，所述屏幕盖设于所述设备壳体，且与所述设备壳体的连接处设有第一出音孔，所述发声装置设于所述设备壳体之内，所述发声装置包括装置壳体和电声模块，所述电声模块包括第一振膜和第二振膜，所述装置壳体分别与所述第一振膜和所述第二振膜相连，所述设备壳体开设有第二出音孔；
至少由所述装置壳体、所述屏幕、所述设备壳体和所述第一振膜围成第一前腔，所述第一前腔与所述第一出音孔连通；
至少由所述装置壳体和所述第二振膜围成第二前腔，所述第二前腔与所述第二出音孔连通；
在所述电声模块处于第一状态下，所述第一振膜振动形成的第一声波和所述第二振膜振动形成的第二声波的相位相反。
本发明采用的技术方案能够达到以下技术效果：
本申请公开的电子设备通过对相关技术中的电子设备的结构进行改进，使得电子设备能够分别形成与第一出音孔连通的第一前腔以及与第二出音孔连通的第二前腔，进而在第一状态下能使得通过第一出音孔传出的第一声波和第二出音孔传出的第二声波因相位相反而产生一定程度的抵消，从而能够解决漏声问题。由于第一前腔和第二前腔传输相位相反的第一声波和第二声波，并通过声波抵消就能够解决漏声问题，因此能够避免在发声装置开设与其后腔连通的开孔，进而能够避免后腔被异物侵入的问题，进而能够解决电子设备存在的较容易被异物侵入的问题。
附图说明
图1为本申请实施例公开一种发声装置的结构示意图；
图2为本申请实施例公开的电子设备的爆炸结构示意图；
图3为图2中部分结构的放大示意图；
图4为本申请实施例公开的一种电子设备的部分结构剖视图；
图5为图4所示的电子设备的部分外观示意图；
图6为本申请实施例公开的另一种发声装置的结构示意图；
图7为本申请实施例公开的另一种电子设备的部分结构的剖视图；
图8为本申请实施例公开的另一种电子设备的部分结构示意图；
图9为漏声曲线的对比图。
附图标记说明：
100-设备壳体、110-框体、111-围框、1111-第二出音孔、112-支撑板、1121-
第一通孔、1122-定位孔、1123-第三通孔、120-盖体、
200-发声装置、210-装置壳体、211-第一壳体、2111-定位凸起、2112-第
二通孔、212-第二壳体、220-电声模块、221-第一振膜、222-第二振膜、230-第一盖板、2101-第二盖板、2102-第二壳主体、
300-屏幕、310-第一出音孔、
400-第二扬声器、
101-第一前腔、102-第二前腔、1021-前腔传音通道、103-后腔、1031-第
一子后腔、1032-第二子后腔、1033-第三子后腔、104-壳体内腔、105-连接通道、
201-第一密封件、202-第二密封件、203-第三密封件、204-第四密封件。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明具体实施例及相应的附图对本发明技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
以下结合附图，详细说明本发明各个实施例公开的技术方案。
本申请实施例公开一种电子设备，所公开的电子设备可以是手机、平板电脑、电子书阅读器、游戏机等，本申请实施例不限制电子设备的具体种类。
请参考图1至图9，本申请实施例公开的电子设备包括设备壳体100、发声装置200和屏幕300。
设备壳体100为电子设备的基础构件，能够直接或间接地为电子设备的其它构件提供安装基础，同时也可以为电子设备的至少部分其它构件提供防护。屏幕300和发声装置200可以直接或间接地设于设备壳体100上，从而实现在设备壳体100上的安装。具体的，发声装置200设于设备壳体100内，进而以设备壳体100为基础实现安装，同时能够得到设备壳体100的防护。
在本申请实施例中，屏幕300盖设于设备壳体100。具体的，屏幕300与设备壳体100可以通过胶层粘接固定。屏幕300与设备壳体100的连接处设有第一出音孔310。设备壳体100设有第二出音孔1111。
第一出音孔310和第二出音孔1111均用于出声。具体的，第一出音孔310可以开设在屏幕300的与设备壳体100连接的边缘上，也可以开设在设备壳体100的与屏幕300连接的边缘上。当然，第一出音孔310和设备壳体100在连接后，两者连接的部位可以拼接形成第一出音孔310。本申请实施例不限制第一出音孔310的具体位置以及形成方式。
在可选的方案中，屏幕300与设备壳体100之间具有装配关系，屏幕300与设备壳体100之间装配，使得屏幕300与设备壳体100的连接处具有装配缝隙，装配缝隙可以作为第一出音孔310。在此种情况下，利用装配缝隙作为第一出音孔310，能够充分利用电子设备的现成的结构，进而避免再专门开设第一出音孔310。另外，装配缝隙通常尺寸较小，以装配间隙作为第一出音孔310，具有较好的防异物侵入电子设备的内部的优势。
发声装置200为电子设备的能够发出声音的装置，发声装置200设于设备壳体100之内。具体的，发声装置200可以通过粘接、连接件连接、卡接等方式实现在设备壳体100内的固定安装。
在本申请实施例中，发声装置200包括装置壳体210和电声模块220，装置壳体210为发声装置200的壳部，电声模块220为发声装置200的声音发生部分，电声模块220设于装置壳体210之内。具体的，电声模块220固定在装置壳体210内，装置壳体210与设备壳体100连接，进而实现电声模块220随同装置壳体210在设备壳体100内的安装。装置壳体210与设备壳体100可以通过粘接、卡接、连接件连接等固定方式实现连接。
电声模块220包括第一振膜221和第二振膜222，在具体的工作过程中，第一振膜221的振动能够形成第一声波，第二振膜222的振动能够形成第二声波。第一振膜221的振动方向和第二振膜222的振动方向可以相同，也可以不相同。
如上文所述，电声模块220设于装置壳体210之内，具体的，装置壳体210分别与第一振膜221和第二振膜222相连。至少由装置壳体210、屏幕300、设备壳体100和第一振膜221围成第一前腔101，第一前腔101与第一出音孔310连通，第一振膜221振动产生的第一声波会依次经过第一前腔101 和第一出音孔310而传播至电子设备所处的环境中，进而实现发声。
至少由装置壳体210和第二振膜222围成第二前腔102，第二前腔102与第二出音孔1111连通。第二振膜222振动产生的第二声波会依次经过第二前腔102和第二出音孔1111而传播至电子设备所处的环境中，进而实现发声。
本申请实施例公开的电声模块220具有第一状态。在电声模块220处于第一状态下，第一振膜221振动形成的第一声波和第二振膜222振动形成的第二声波的相位相反。相位相反的第一声波和第二声波能够在传出电子设备之外的情况下叠加，从而实现一定程度的抵消，进而缓解第一声波和第二声波传播至较远的区域而被其它人听到的现象，进而能够缓解漏声。
本申请实施例公开的电子设备通过对相关技术中的电子设备的结构进行改进，使得电子设备能够分别形成与第一出音孔310连通的第一前腔101以及与第二出音孔1111连通的第二前腔102，进而能使得在第一状态下通过第一出音孔310传出的第一声波和第二出音孔1111传出的第二声波因相位相反而实现一定程度的抵消，从而能够解决漏声问题。由于第一前腔101和第二前腔102传输相位相反的第一声波和第二声波，并通过声波的抵消就能够解决漏声问题，因此能够避免在发声装置开设与其后腔连通的开孔，进而能够避免后腔被异物侵入的问题，进而能够解决电子设备存在的较容易被异物侵入的问题。
在本申请实施例中，装置壳体210可以为一体式结构，例如可以通过一张壳体原材通过折弯、冷压等方式形成，在形成的过程中可以直接将电声模块220包裹，从而实现电声模块220和装置壳体210的装配连接。当然，考虑到方便装配，在另一种可选的方案中，装置壳体210可以为分体式结构，且包括第一壳体211和第二壳体212，第一壳体211与第二壳体212相连。 具体的，第一壳体211和第二壳体212可以通过粘接、焊接等方式实现装配连接。此种结构能够通过装配实现第一壳体211和第二壳体212之间的连接，无需采用较为复杂的工艺设备进行，因此具有方便装配的优势。
由于电声模块220与装置壳体210具有装配关系，因此第一壳体211和第二壳体212中的至少一者与电声模块220具有装配关系。基于此，在进一步的技术方案中，第一壳体211与第一振膜221相连，第二壳体212与第二振膜222相连，进而实现装置壳体210与电声模块220之间的连接。具体的，第一壳体211与第一振膜221可以通过粘接的方式实现相连，同理，第二壳体212与第二振膜222也可以通过粘接的方式实现相连。当然，第一壳体211与第二壳体212之间的连接，能够使得第一壳体211与第一振膜221以及第二壳体212与第二振膜222之间产生抵触配合，从而实现各自之间的装配连接，当然，此种情况下，发声装置200可以被第一壳体211和第二壳体212夹紧，进而实现固定安装。当然，需要说明的是，此处的抵触配合也是一种连接。
在装置壳体210包括第一壳体211和第二壳体212的情况下，第一前腔101至少由第一壳体211、屏幕300、设备壳体100和第一振膜221围成，第二前腔102至少由第二壳体212和第二振膜222围成。此种通过分体式结构的装置壳体210的构件(即第一壳体211和第二壳体212)分别与电声模块220配合来形成第一前腔101和第二前腔102的方式，能够通过构件之间的装配较容易实现。
如上文所述，本申请实施例公开的电声模块220具有第一状态，由于在第一状态下，第一声波和第二声波互为反向声波，且在传播过程中会进行一定程度的抵消，因此发声装置200在电声模块220处在第一状态的情况下， 发出的声音较小。在此种情况下，发声装置200类似于受话器，在用户使用电子设备进行通话时，发声装置200则发挥受话器的功能，能够发出较小的以供用户近距离接听的声音，而由于声波的反向抵消，因此发声装置200发出的声音在向远方传播的过程中会抵消，进而能够使得通话内容不容易被远处的其他人听到，进而解决漏声的问题，进而较好地保护通话隐私。
在进一步的技术方案中，电声模块220还可以具有第二状态。当然，第二状态与第一状态为不同的状态。在电声模块220处在第二状态下，第一振膜221振动形成的第一声波和第二振膜222形成的第二声波的相位相同，在此种情况下，相位相同的第一声波和第二声波分别从第一出音孔310和第二出音孔1111传出后叠加，达到增强的目的，最终实现了较大声音的产生。在此种情况下，发声装置200则类似于扬声器，能发挥扬声器的功能。很显然，发声装置200能够兼具受话器和扬声器的功能，进而能够避免电子设备需要同时配置受话器和扬声器，进而有利于简化电子设备的结构。需要说明的是，本文中，电声模块220产生的第一声波和第二声波的相位相同还是不同的控制，为现有技术，在此不再赘述。
在进一步的技术方案中，在第二状态下，发声装置200为第一扬声器，本申请实施例公开的电子设备还可以包括第二扬声器400，第二扬声器400设于设备壳体100。具体的，第二扬声器400也可以通过粘接、卡接、连接件连接等方式固定在设备壳体100之内，从而实现安装。
第一扬声器的发声方向和第二扬声器400的发声方向可以相同，也可以不同。第一扬声器的发声方向和第二扬声器400的发声方向相同，能够使得电子设备发挥更强的扬声效果。第一扬声器的发声方向和第二扬声器400的发声方向不同，进而能够使得两者分别朝向不同的方向进行发声，最终能够 使得电子设备在扬声模式下形成立体发声效果。这能够提升电子设备的发声性能。需要说明的是，本文中，第一扬声器的发声方向和第二扬声器400的发声方向不同，指的是第一扬声器的出音孔(即第一出音孔310和第二出音孔1111)朝向，与第二扬声器400的出音孔的朝向不相同。
可选地，发声装置200可以设于电子设备的顶端，第二扬声器400可以设于电子设备的底端，如图2所示，此种布局较容易实现第一扬声器的发声方向和第二扬声器400的发声方向不同的设计。
在本申请实施例中，发声装置200具有后腔103，后腔103则能够实现发声装置200的低音性能。一种可选的方案中，第一振膜221和第二振膜222相背设置，第一振膜221和第二振膜222之间形成第一子后腔1031，装置壳体210和电声模块220围成第二子后腔1032，第一子后腔1031和第二子后腔1032连通，后腔103包括第一子后腔1031和第二子后腔1032。当然，发声装置200的后腔103可以仅仅包括第一子后腔1031。相比于后腔103仅仅包括第一子后腔1031而言，装置壳体210和电声模块220围成的第二子后腔1032能够与第一子后腔1031配合，进而使得后腔103的空间得到拓展，进而能进一步提高发声装置200的低音性能。
如上文所述，第一振膜221和第二振膜222相背设置，进而使得两者的振动方向一致。具体的，第一振膜221和第二振膜222可以沿第一方向振动，第二子后腔1032设于电声模块220的第一侧。第二子后腔1032与电声模块220在第二方向依次分布，第一方向垂直于屏幕300，第二方向与第一方向相垂直。此种结构能够使得第二子后腔1032在第二方向依次分布，从而能够避免在垂直于屏幕300方向的堆叠。在通常情况下，垂直于屏幕300的方向为电子设备的厚度方向，将第二子后腔1032形成于电声模块220在第二方向的 第一侧，因此能够避免在电子设备的厚度方向的堆叠，进而避免电子设备的厚度较大，有利于电子设备向着更薄的方向设计。
在进一步的技术方案中，装置壳体210与电声模块220围成第三子后腔1033，第三子后腔1033与第一子后腔1031和第二子后腔1032中的至少一者连通，第三子后腔1033与电声模块220在第二方向依次分布，且位于电声模块220的第二侧，第一侧与第二侧为电声模块220相背的两侧。此种结构能够通过进一步增加第三子后腔1033，来为后腔103进行扩容，以使得发声装置200的低音性能更好地得到提升。
具体的，第三子后腔1033在远离电声模块220的方向上高度递减。需要说明的是，高度为第三子后腔1033在电子设备的厚度方向的尺寸。厚度方向与屏幕300相垂直。第二前腔102具有前腔传音通道1021，第二前腔102通过前腔传音通道1021与第二出音孔1111连通。第二出音孔1111开设于设备壳体100上，前腔传音通道1021在电子设备的厚度方向可以叠置在第二子后腔1032上，前腔传音通道1021的开口在靠近第二出音孔1111的方向逐渐增大，以实现较好的出音。上述高度递减的第三子后腔1033能够较好地适应前腔传音通道1021的开口大小变化。
本申请实施例公开的电子设备中，设备壳体100具有壳体内腔104，发声装置200具有后腔103，一种可选的方案中，第一振膜221可以为第一防水振膜，第一前腔101与壳体内腔104和后腔103分别隔离，从而避免进入第一前腔101内的颗粒、液体进入到壳体内腔104或后腔103中，从而进一步提升防尘、防水性能。
同理，在另一种可选的方案中，第二振膜222可以为第二防水振膜，第二前腔102与壳体内腔104和后腔103分别隔离，从而避免进入到第二前腔 102内的颗粒、液体进入到壳体内腔104或后腔103中，从而进一步提升防尘、防水性能。
在本申请实施例中，设备壳体100可以包括框体110和盖体120，框体110具有围框111和支撑板112，支撑板112位于围框111围绕的区域内，屏幕300和盖体120分别连接在框体110的相背的两侧，盖体120和框体110围成壳体内腔104。具体的，盖体120可以是电池盖。具体的，支撑板112与围框111可以为一体式结构，也可以为分体式结构通过装配实现固定连接。
发声装置200设于壳体内腔104中，支撑板112位于发声装置200和屏幕300之间，支撑板112开设有第一通孔1121，装置壳体210与支撑板112之间可以设有第一密封件201，第一密封件201围绕第一通孔1121设置，支撑板112与屏幕300之间可以设有第二密封件202，一种可选的方案中，第一振膜221、装置壳体210、支撑板112、第一密封件201、第二密封件202和屏幕300围成所述第一前腔101。此种结构的设备壳体100能过围成壳体内腔104的同时，还具有为发声装置200提供安装位置的支撑板112，同时通过第一密封件201和第二密封件202实现第一前腔101与壳体内腔104之间的密封隔离。
支撑板112能够为发声装置200提供安装位置，为了方便安装，支撑板112和装置壳体210中的一者可以设有定位孔1122，另一者可以设有定位凸起2111。定位孔1122和定位凸起2111定位配合。在安装发声装置200的过程中，操作人员可以先将定位凸起2111和定位孔1122插接，进而实现预定位，然后再连接装置壳体210和支撑板112。具体的，装置壳体210和支撑板112可以通过连接件(螺纹连接件)连接、粘接等方式实现。
本文中，第二出音孔1111可以开设于围框111上，装置壳体210的第一 端面可以开设有与第二前腔102连通的出音口(可以认为是前腔传音通道1021的端口)，第一端面与围框111的内壁之间可以设有第三密封件203，第二出音孔1111与出音口连通。第二出音孔1111开设于围框111上，进而较容易实现与第一出音孔310的朝向不同，进而有利于提高发声效果。另外，第二出音孔1111开设于围框111上，较容易使得第二出音孔1111显露于电子设备的侧面，此种设计能够使得第二出音孔1111不容易被人察觉，进而有利于提高电子设备的外观性能。
在进一步的技术方案中，装置壳体210可以开设有第二通孔2112，支撑板112开设有第三通孔1123，第二通孔2112与第一振膜221位于装置壳体210的同一侧，第二通孔2112与第一振膜221均朝向支撑板112，第三通孔1123可以与第一通孔1121朝向一致，第二通孔2112与第三通孔1123连通，第二前腔102与第二通孔2112连通，第二出音孔1111开设于围框111上，发声装置200还包括第一盖板230，第一盖板230设于装置壳体210上，且与装置壳体210形成连接通道105，具体的，第一盖板230可以通过粘接、卡接等方式与装置壳体210相连，当然，在装置壳体210包括第一壳体211和第二壳体212的情况下，第二通孔2112可以开设于第一壳体211上。
一种可选的方案中，前腔传音通道1021成型于第二壳体212上，此种情况下，第二壳体212的结构较为复杂，为了使得第二壳体212的制造更加方便，第二壳体212可以为分体式结构，具体的，第二壳体212可以包括第二盖板2101和第二壳主体2102，第二壳主体2102可以开设有工艺孔，第二盖板2101安装于第二壳主体2102，且封堵工艺孔。此种情况下，可以先制造第二壳主体2102，然后将第二盖板2101安装在第二壳主体2102上即可。由于工艺孔能使得第二壳体212的内部结构更多地暴露，因此工艺孔能使得制 造第二壳体212的工艺更容易实施。第二壳主体2102可以通过注塑的方式成型，此时工艺孔更容易实现脱模。
连接通道105连接第三通孔1123和第二出音孔1111，电子设备还可以包括第四密封件204，第四密封件204设于支撑板112与装置壳体210之间，且围绕所述第二通孔2112和第三通孔1123设置，第四密封件204与第一密封件201可以共面设置。此种结构能够使得发声装置200与设备壳体100之间需要密封的部位位于装置壳体210的同一侧，这无疑方便密封设计，也有利于密封装配的进行。
在可选的方案中，第四密封件204和第一密封件201可以为一体式结构，相应的部位开设有避让孔以避让相应的通孔即可，此种情况下，只需要安装一个整体的密封结构件即可，无疑能够方便操作。
在本申请实施例中，第一密封件201、第二密封件202、第三密封件203和第四密封件204可以为密封泡棉件，也可以为密封硅胶件，本申请实施例不限制它们的材质。
请参考图9，相比于背景技术所述的通过开设与后腔连通的开孔的电子设备而言，本申请实施例公开的电子设备在可听声范围内灵敏度更低，换句话说，本申请实施例公开的电子设备的缓解漏声的效果更好。图9中，第二出音孔1111的面积为3mm2的漏声曲线为实线曲线，第二出音孔1111的面积为5mm2的漏声曲线为虚线曲线。
本发明上文实施例中重点描述的是各个实施例之间的不同，各个实施例之间不同的优化特征只要不矛盾，均可以组合形成更优的实施例，考虑到行文简洁，在此则不再赘述。
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上 述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本发明的保护之内。

Claims (13)

  1. 一种电子设备，包括设备壳体(100)、发声装置(200)和屏幕(300)，所述屏幕(300)盖设于所述设备壳体(100)，且与所述设备壳体(100)的连接处设有第一出音孔(310)，所述发声装置(200)设于所述设备壳体(100)之内，所述发声装置(200)包括装置壳体(210)和电声模块(220)，所述电声模块(220)包括第一振膜(221)和第二振膜(222)，所述装置壳体(210)分别与所述第一振膜(221)和所述第二振膜(222)相连，所述设备壳体(100)开设有第二出音孔(1111)；
    至少由所述装置壳体(210)、所述屏幕(300)、所述设备壳体(100)和所述第一振膜(221)围成第一前腔(101)，所述第一前腔(101)与所述第一出音孔(310)连通；
    至少由所述装置壳体(210)和所述第二振膜(222)围成第二前腔(102)，所述第二前腔(102)与所述第二出音孔(1111)连通；
    在所述电声模块(220)处于第一状态下，所述第一振膜(221)振动形成的第一声波和所述第二振膜(222)振动形成的第二声波的相位相反。
  2. 根据权利要求1所述的电子设备，其中，所述装置壳体(210)为分体式结构，且包括第一壳体(211)和第二壳体(212)，所述第一壳体(211)与所述第二壳体(212)相连，所述第一壳体(211)与所述第一振膜(221)相连，所述第二壳体(212)与所述第二振膜(222)相连，
    至少由所述第一壳体(211)、所述屏幕(300)、所述设备壳体(100)和所述第一振膜(221)围成所述第一前腔(101)；
    至少由所述第二壳体(212)和所述第二振膜(222)围成所述第二前腔 (102)。
  3. 根据权利要求1所述的电子设备，其中，在所述电声模块(220)处在第二状态下，所述第一振膜(221)振动形成的所述第一声波与所述第二振膜(222)振动形成的所述第二声波的相位相同。
  4. 根据权利要求3所述的电子设备，其中，在所述第二状态下，所述发声装置(200)为第一扬声器，所述电子设备还包括第二扬声器(400)，所述第二扬声器(400)设于所述设备壳体(100)，所述第一扬声器的发声方向与所述第二扬声器(400)的发声方向不同。
  5. 根据权利要求1所述的电子设备，其中，所述发声装置(200)具有后腔(103)，所述第一振膜(221)和所述第二振膜(222)相背设置，且两者之间形成第一子后腔(1031)，所述装置壳体(210)与所述电声模块(220)围成第二子后腔(1032)，所述第一子后腔(1031)与所述第二子后腔(1032)连通，所述后腔(103)包括所述第一子后腔(1031)和所述第二子后腔(1032)。
  6. 根据权利要求5所述的电子设备，其中，所述第一振膜(221)和所述第二振膜(222)可沿第一方向振动，所述第二子后腔(1032)设于所述电声模块(220)的第一侧，且所述第二子后腔(1032)与所述电声模块(220)在第二方向依次分布，所述第一方向垂直于所述屏幕(300)，所述第二方向与所述第一方向相垂直。
  7. 根据权利要求6所述的电子设备，其中，所述装置壳体(210)与所述电声模块(220)围成第三子后腔(1033)，所述第三子后腔(1033)与所述第一子后腔(1031)和所述第二子后腔(1032)中的至少一者连通，所述第三子后腔(1033)与所述电声模块(220)在所述第二方向依次分布，且位于所述电声模块(220)的第二侧，所述第一侧与所述第二侧为所述电声模块 (220)相背的两侧，所述第三子后腔(1033)在远离所述电声模块(220)的方向上高度递减。
  8. 根据权利要求1所述的电子设备，其中，所述屏幕(300)与所述设备壳体(100)的连接处具有装配缝隙，所述装配缝隙为所述第一出音孔(310)。
  9. 根据权利要求1所述的电子设备，其中，所述设备壳体(100)具有壳体内腔(104)，所述发声装置(200)具有后腔(103)，其中：
    所述第一振膜(221)为第一防水振膜，所述第一前腔(101)与所述壳体内腔(104)和所述后腔(103)分别密封隔离；和/或，
    所述第二振膜(222)为第二防水振膜，所述第二前腔(102)与所述壳体内腔(104)和所述后腔(103)分别密封隔离。
  10. 根据权利要求9所述的电子设备，其中，所述设备壳体(100)包括框体(110)和盖体(120)，
    所述框体(110)具有围框(111)和支撑板(112)，所述屏幕(300)和所述盖体(120)分别连接在所述框体(110)的相背的两侧，所述盖体(120)和所述框体(110)围成所述壳体内腔(104)，所述发声装置(200)设于所述壳体内腔(104)中，所述支撑板(112)位于发声装置(200)与所述屏幕(300)之间，且位于所述围框(111)围绕的区域内，所述支撑板(112)开设有第一通孔(1121)，
    所述装置壳体(210)与所述支撑板(112)之间设有第一密封件(201)，所述第一密封件(201)围绕所述第一通孔(1121)设置，所述支撑板(112)与所述屏幕(300)之间设有第二密封件(202)，所述第一振膜(221)、所述装置壳体(210)、所述支撑板(112)、第一密封件(201)、所述第二密封件(202)和所述屏幕(300)围成所述第一前腔(101)。
  11. 根据权利要求10所述的电子设备，其中，所述支撑板(112)和所述装置壳体(210)中的一者设有定位孔(1122)，另一者设有定位凸起(2111)，所述定位孔(1122)与所述定位凸起(2111)定位配合。
  12. 根据权利要求10所述的电子设备，其中，所述第二出音孔(1111)开设于所述围框(111)上，所述装置壳体(210)的第一端面设有与所述第二前腔(102)连通的出音口，所述第一端面与所述围框(111)的内壁之间设有第三密封件(203)，所述第二出音孔(1111)与所述出音口连通。
  13. 根据权利要求10所述的电子设备，其中，所述装置壳体(210)开设有第二通孔(2112)，所述支撑板(112)开设有第三通孔(1123)，所述第二通孔(2112)与所述第三通孔(1123)连通，所述第二前腔(102)与所述第二通孔(2112)连通，所述第二出音孔(1111)开设于所述围框(111)上；
    所述发声装置(200)还包括第一盖板(230)，所述第一盖板(230)设于所述装置壳体(210)上，且与所述装置壳体(210)形成连接通道(105)，所述连接通道(105)连接所述第三通孔(1123)和所述第二出音孔(1111)；
    所述电子设备还包括第四密封件(204)，所述第四密封件(204)设于所述支撑板(112)与所述装置壳体(210)之间，且围绕所述第二通孔(2112)和所述第三通孔(1123)设置，所述第四密封件(204)与所述第一密封件(201)共面设置。
PCT/CN2023/102275 2022-06-30 2023-06-26 电子设备 WO2024001979A1 (zh)

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