CN111526462A

CN111526462A - Electroacoustic module, electronic equipment and audio output method

Info

Publication number: CN111526462A
Application number: CN202010476304.0A
Authority: CN
Inventors: 李明阳
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-08-11
Anticipated expiration: 2040-05-29
Also published as: CN111526462B

Abstract

The application relates to an electroacoustic module, an electronic device and an audio output method. The electronic equipment comprises a middle frame, a first appearance part, a second appearance part and an electroacoustic module. The first appearance part and the second appearance part are respectively arranged on two opposite sides of the middle frame, and the electroacoustic module is connected to the middle frame. The electroacoustic module comprises a magnetic circuit system, and a first electromagnetic driving module and a second electromagnetic driving module which are arranged on two opposite sides of the magnetic circuit system. The first appearance part is connected to the first electromagnetic driving module and is driven by the first electromagnetic driving module to vibrate; the second appearance component is connected to the second electromagnetic driving module and is driven by the second electromagnetic driving module to vibrate. The outward appearance part by electroacoustic module direct drive electronic equipment vibrates in order directly to propagate the external world with sound, can avoid offering the passageway that supplies the sound transmission on electronic equipment's shell, has guaranteed electronic equipment's shell structure's integrality and uniformity.

Description

Electroacoustic module, electronic equipment and audio output method

Technical Field

The present application relates to the field of consumer electronics, and in particular, to an electroacoustic module, an electronic device, and an audio output method.

Background

With the development and progress of science and technology, the communication technology has been developed rapidly and greatly, and with the improvement of the communication technology, the popularization of intelligent electronic products has been improved to an unprecedented level, and more intelligent terminals or electronic devices become an indispensable part of the life of people, such as smart phones, smart televisions, computers and the like.

Traditional electronic equipment converts the audio file of treating the broadcast into analog signal and output the sound wave that people's ear can hear through the electroacoustic module, makes people can listen to the audio frequency through electronic equipment, audio frequency such as voice call, voice message, video conversation. However, the conventional electroacoustic module is usually a diaphragm receiver disposed inside a housing of an electronic device, and a sound outlet hole corresponding to the diaphragm receiver needs to be formed on the housing of the electronic device so as to guide sound emitted by the diaphragm receiver to the outside. Such an electroacoustic module needs to rely on the opening on the housing to realize the sound generating function, and the opening on the housing inevitably damages the structural integrity and consistency of the housing of the electronic device.

Disclosure of Invention

The embodiment of the application provides an electroacoustic module, electronic equipment and an audio output method.

In a first aspect, an embodiment of the present application provides an electroacoustic module. The electroacoustic module comprises a magnetic circuit system, a first electromagnetic driving module and a second electromagnetic driving module. The magnetic circuit system is used for generating a constant magnetic field, the first electromagnetic driving module is arranged on one side of the magnetic circuit system and is located in the constant magnetic field, and a first vibration gap is formed between the first electromagnetic driving module and the magnetic circuit system. The first electromagnetic driving module is used for being connected with a first load and driving the first load to vibrate when current is switched on. The second electromagnetic driving module is arranged on one side, far away from the first electromagnetic driving module, of the magnetic circuit system and is located in the constant magnetic field, and a second vibration gap is formed between the second electromagnetic driving module and the magnetic circuit system. The second electromagnetic driving module is used for being connected with a second load and driving the second load to vibrate when the current is switched on.

In a second aspect, an embodiment of the present application further provides an electronic device, which includes a middle frame, a first appearance component, a second appearance component, and the electroacoustic module, where the first appearance component and the second appearance component are respectively disposed on two opposite sides of the middle frame, and the electroacoustic module is connected to the middle frame. The first appearance part is connected to the first electromagnetic driving module and is driven by the first electromagnetic driving module to vibrate; the second appearance component is connected to the second electromagnetic driving module and is driven by the second electromagnetic driving module to vibrate.

In a third aspect, an embodiment of the present application further provides an audio output method, which is applied to the electronic device described above, where the audio output method includes: when the electronic equipment acquires an audio file to be played, one of the first appearance component and the second appearance component facing a user is determined, if the first appearance component faces the user, audio current is input to the first electromagnetic driving module according to the audio file, and if the second appearance component faces the user, audio current is input to the second electromagnetic driving module according to the audio file.

In the electronic equipment, among electroacoustic module and audio output method that this application embodiment provided, with first electromagnetic drive module, second electromagnetic drive module sets up respectively in magnetic circuit's both sides, and connect respectively in electronic equipment's first outward appearance part and second outward appearance part, wherein, first electromagnetic drive module is when inserting audio current, can atress and drive first outward appearance part vibration sound production in magnetic circuit's constant magnetic field, second electromagnetic drive module is when inserting audio current, can atress and drive second outward appearance part vibration sound production in magnetic circuit's constant magnetic field. Through such scheme, can directly drive electronic equipment's outward appearance part by electroacoustic module and vibrate in order directly to propagate sound to the external world (if propagate in user's ear), consequently can avoid offering the passageway that supplies sound transmission (if go out the sound hole) on electronic equipment's shell to the integrality and the uniformity of electronic equipment's shell structure have been guaranteed.

Furthermore, in the electronic device, the electroacoustic module and the audio output method, the first appearance part is driven to vibrate and sound through the first electromagnetic driving module, and the second appearance part is driven to vibrate and sound through the second electromagnetic driving module, so that the appearance part which can sound can be determined according to the actual orientation of the electronic device currently used by a user, the situation that the user needs to turn the electronic device to the surface of one side only with the sound outlet hole when using the electronic device is avoided, and the electronic device has relatively high use convenience. Furthermore, because the first electromagnetic driving module and the second electromagnetic driving module share the same magnetic circuit system, the structure of the electroacoustic module capable of generating sound on two sides is simplified, the thickness of the electronic equipment can be reduced, and the development trend of miniaturization and light weight of the electronic equipment is met.

Drawings

In order to more clearly illustrate the technical solution of the application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of an electronic device provided in an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of the electronic device of fig. 1 along line II-II.

Fig. 3 is a schematic cross-sectional view of an electroacoustic module of the electronic device shown in fig. 2.

Fig. 4 is a perspective assembly view of the electroacoustic module shown in fig. 3.

Fig. 5 is a schematic exploded perspective view of the electroacoustic module shown in fig. 4.

Fig. 6 is a schematic exploded perspective view of another view of the electroacoustic module shown in fig. 5.

Fig. 7 is a functional block diagram of an electronic device provided in an embodiment of the present application.

Fig. 8 is a block flow diagram of an audio output method provided by an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As used in embodiments herein, "electronic device" includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal", an "electronic apparatus", and/or an "electronic device". Examples of electronic devices include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; as well as conventional laptop and/or palmtop receivers, gaming consoles, or other electronic devices that include radiotelephone transceivers.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

Referring to fig. 1, the present disclosure provides an electronic device 200 having an electroacoustic module 100, where the electronic device 200 may be, but is not limited to, an electronic device such as a mobile phone, a tablet computer, a game machine, a smart watch, and the like. The electronic device 200 of the present embodiment is described by taking a mobile phone as an example, and the electroacoustic module 100 is located inside the electronic device 200 and is used for converting an electric signal into a sound signal so that a user can hear an audio frequency.

The electronic device 200 includes a middle frame 210, a design structure assembly 230, the electroacoustic module 100, and an electronic assembly (not shown). The electronic assembly comprises a mainboard, and a central processing unit, a memory, an antenna, a camera, a sensor and the like which are arranged on the mainboard. The portable electronic device also comprises a printed circuit board and a functional module (such as a battery, a connector, a fingerprint module and the like) arranged on the printed circuit board. The middle frame 210 serves as a main supporting structure of the electronic device 200, and the electronic components and the electroacoustic module 100 are disposed on the middle frame 210. The exterior structural component 230 serves as an exterior surface of the electronic device 200, and substantially covers at least a portion of an outer surface of the middle frame 210. It should be noted that, in the present specification, when an element is referred to as being "disposed on" another element, it can be directly connected to the other element or intervening elements may be present (i.e., indirectly connected to the other element); when a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present, i.e., there may be an indirect connection between the two components.

In the embodiment of the present application, the appearance structure assembly 230 may include a display screen and/or a housing. Specifically, in the embodiment shown in fig. 1, the appearance structure assembly 230 includes a first appearance part 231 and a second appearance part 233, and the first appearance part 231 and the second appearance part 233 are respectively located at two opposite sides of the middle frame 210. In this embodiment, the first appearance part 231 and the second appearance part 233 are both display screens, so that the electronic device 200 has a larger display area, and the requirement of the user for large-area display is met. Further, in the present embodiment, the appearance structure assembly 230 further includes a third appearance component 235, and the third appearance component 235 is also a display screen, and is connected between the first appearance component 231 and the second appearance component 233. The first appearance member 231, the third appearance member 235 and the second appearance member 233 in this embodiment are sequentially connected to form an integral display screen, so that the electronic device 200 is a dual-panel electronic device having a side display portion. In other embodiments, the third appearance part 235 may be a side frame of the electronic device 200, and the first appearance part 231 and the second appearance part 233 are not necessarily connected to each other in appearance, in which case, the electronic device 200 is also a dual-panel electronic device. It should be understood that the designations of the "first appearance member", "second appearance member", and "third appearance member" are merely a division of nomenclature for convenience of description, wherein each may not have a distinct line of demarcation therebetween, or may be two or more members assembled together, respectively, and the nomenclature of the first appearance member "," second appearance member ", and" third appearance member "should not impose limitations on the structure of the appearance structure assembly 230.

Referring to fig. 2, the middle frame 210 is disposed between the first external member 231 and the second external member 233, and is used for mounting the electroacoustic module 100. In the present embodiment, the middle frame 210 includes a first surface 211 and a second surface 213 facing away from each other. The first surface 211 is disposed opposite to the first appearance part 231 and is coupled to the first appearance part 231 to bear and support the first appearance part 231. The second surface 213 is disposed opposite to the second appearance member 233 and is coupled to the second appearance member 233 to carry and support the second appearance member 233.

Further, in the present embodiment, the middle frame 210 is formed with a receiving hole 215, and the receiving hole 215 is used for receiving the electroacoustic module 100. The receiving hole 215 penetrates the first surface 211 and the second surface 213, so that both ends of the electroacoustic module 100 disposed in the receiving hole 215 can be exposed through the first surface 211 and the second surface 213. Further, the receiving hole 215 is a stepped hole having a stepped portion for connecting the electroacoustic module 100. Specifically, the middle frame 210 further includes a stepped surface 2151 located in the receiving hole 215, the stepped surface 2151 being oriented in correspondence with the second surface 213. The stepped surface 2151 is used to connect the electroacoustic module 100, so as to facilitate installation and fixation of the electroacoustic module 100, and to make the installation structure of the electroacoustic module 100 more stable.

The electroacoustic module 100 is connected to the middle frame 210, and is configured to connect the first external appearance component 231 and the second external appearance component 233, so as to drive the first external appearance component 231 and the second external appearance component 233 to vibrate and generate sound, thereby avoiding opening a channel (such as a sound outlet hole) for sound transmission on the housing of the electronic device 200, and ensuring the integrity and consistency of the external appearance structure of the electronic device 200. In the present embodiment, the electroacoustic module 100 is a vibration exciter, which is disposed in the receiving hole 215 and connected to the step surface 2151.

The electro-acoustic module 100 includes a magnetic circuit system 10, a first electromagnetic driving module 30, and a second electromagnetic driving module 50. The magnetic circuit system 10 is used for generating a constant magnetic field, and the first electromagnetic driving module 30 and the second electromagnetic driving module 50 are respectively arranged on two opposite sides of the magnetic circuit system 10; the first electromagnetic driving module 30 is located in a constant magnetic field, and a first vibration gap 301 is provided between the first electromagnetic driving module 30 and the magnetic circuit system 10, and when the first electromagnetic driving module 30 is connected with a current, the first electromagnetic driving module is stressed in the constant magnetic field and drives the first appearance component 231 to vibrate and generate sound; the second electromagnetic driving module 50 is located in a constant magnetic field, and a second vibration gap 501 is provided between the second electromagnetic driving module 50 and the magnetic circuit system 10, and when the second electromagnetic driving module 50 is connected with a current, it is forced in the constant magnetic field and drives the second appearance component 231 to vibrate and generate sound.

Magnetic circuit system 10 may include components or assemblies capable of generating a constant magnetic field, which are not limited by the embodiments of the present application. For example, the magnetic circuit system 10 may include a permanent magnet and/or an electromagnet. Referring to fig. 3, in the present embodiment, the magnetic circuit system 10 includes a fixing member 12 and a magnet 14, the fixing member 12 is fixed to the middle frame 210, the magnet 14 is disposed on the fixing member 12, and the magnet 14 includes, but is not limited to, a permanent magnet and an electromagnet.

Further, the fixing member 12 includes a bearing portion 121 and a frame 123, and the bearing portion 121 is substantially plate-shaped and is used for bearing the magnet 14. The bearing part 121 is provided with through holes 1211 penetrating opposite sides of the bearing part 1211, and the through holes 1211 are used for fixing the magnet 14 so that the magnet 14 can be exposed to both sides of the fixing member 12 to prevent the magnetic field generated from the magnet 14 from being interfered or shielded. The frame 123 is substantially annular frame-shaped, surrounds the outer periphery of the bearing part 121, and protrudes relative to the surface of the bearing part 121. In the embodiment shown in fig. 3 in particular, one end of the frame 123 protrudes toward the first electromagnetic driving module 30 relative to the bearing portion 121, so as to form a space for partially accommodating the first electromagnetic driving module 30 together with the bearing portion 121, and provide a sufficient space for the movement of the first electromagnetic driving module 30. The other end of the frame 123 protrudes toward the second electromagnetic driving module 50 relative to the bearing portion 121, so as to form a space for partially accommodating the second electromagnetic driving module 50 together with the bearing portion 121, and provide a sufficient space for the movement of the second electromagnetic driving module 50.

Referring to fig. 4 to 5, further, in the present embodiment, the fixing member 12 is made of magnetic steel. The fixing member 12 further includes a connecting portion 125, and the connecting portion 125 is connected to the frame 123. The connecting portion 125 is used to integrally connect the electroacoustic module 100 to the center frame 210 by a fastener. In this embodiment, there are two connecting portions 125, and the two connecting portions 125 are respectively disposed at two opposite ends of the frame 123 and protrude from the frame 123. The connection part 125 is overlapped on the step surface 1215 of the middle frame 210 and connected with the step surface 1215 by a fastener to integrally mount the electroacoustic module 100 to the middle frame 210. By providing two substantially symmetrical connecting portions 125, the strength of connection between the fixing member 12 and the middle frame 210 can be increased. In other embodiments, the number of the connecting portions 125 may be one or more than two, or the connecting portions 125 may also have a connecting structure disposed around the periphery of the middle frame 210, and is not limited by the embodiments of the present disclosure.

Further, in the present embodiment, the magnetic circuit system 10 further includes a fastener 16, and the fastener 16 connects the connecting portion 125 and the middle frame 210 together. The fastening member 16 may be a threaded fastening member, such as a screw, a bolt, or other mechanical fastening member, such as a buckle, and in this case, the middle frame 210 may be provided with a slot structure that is engaged with the buckle, and the buckle and the slot cooperate to realize the connection between the magnetic circuit system 10 and the middle frame.

Further, in the present embodiment, the magnetic circuit system 10 further includes two sets of elastic members 18, where one set of elastic members 18 is connected between the fixing member 16 and the first electromagnetic driving module 30, and is used to substantially define the relative positions of the first electromagnetic driving module 30 and the magnetic circuit system 10, and enable the first electromagnetic driving module 30 to have a degree of freedom of vibration without being separated from the magnetic circuit system 10 by using its own elastic force; another set of elastic members 18 is connected between the fixing member 16 and the second electromagnetic driving module 50, and is used to substantially define the relative positions of the second electromagnetic driving module 50 and the magnetic circuit system 10, and enable the second electromagnetic driving module 50 to have a freedom of vibration without being separated from the magnetic circuit system 10 by its own elastic force. By providing the elastic member 18, the magnetic circuit system 10, the first electromagnetic driving module 30 and the second electromagnetic driving module 50 can be connected together, so that the electroacoustic module 100 forms a modular component, which is beneficial to the modular assembly of the electronic device 200, thereby reducing the assembly cost of the electronic device 200. Each set of elastic members 18 may include a plurality of elastic member units, and each elastic member unit may be a spring sheet, a spring, or the like.

Referring to fig. 3 again, the magnet 14 is fixed in the through hole 1211 of the carrying part 121 and is used for generating a constant magnetic field. The first vibration gap 301 is formed between the magnet 14 and the first electromagnetic drive module 30, and the second vibration gap 501 is formed between the magnet 14 and the second electromagnetic drive module 50. In the present embodiment, the magnet 14 is a permanent magnet. In other embodiments, the magnet 14 may be an electromagnet, which may include an iron core and a coil surrounding the iron core, the coil being electrically connected to the main board of the electronic device 200, and the electromagnet being capable of generating a constant magnetic field when the coil is inputted with a direct current. By using an electromagnet as the magnet 14, the magnitude of the magnetic flux of the constant magnetic field can be flexibly controlled, which facilitates the control of the electro-acoustic assembly 100.

The first electromagnetic driving module 30 includes a first connector 32 and a first voice coil assembly 34, the first connector 32 is connected to the first appearance component 231, and the first voice coil assembly 34 is disposed on a side of the first connector 32 facing the magnetic circuit system 10. The first voice coil assembly 34 is in a constant magnetic field generated by the magnet 14, and is capable of being forced to move relative to the magnet 14 when a current is applied, so that the first appearance part 231 is driven by the first connecting member 32 to vibrate and generate sound.

In the embodiment, the first connecting member 32 is substantially in the shape of a thin plate, and is used for supporting the first appearance part 231 to prevent the first appearance part 231 from deforming and collapsing and to drive the first appearance 231 to move. Further, in order to avoid interference with the movement of the first link 32, the first surface 211 of the middle frame 210 is provided with a first groove 2111 (see fig. 2), and the first groove 2111 communicates with the through hole 215. The first connecting member 32 is received in the first groove 2111, and the first connecting member 32 is spaced apart from the bottom wall of the first groove 2111, so that the first connecting member 32 can smoothly move without interference in the space defined by the first groove 2111. In the present embodiment, the first connecting member 32 is made of a rigid material, for example, the first connecting member 32 may be a steel plate, an iron plate, or other structures with high rigidity, so that the first connecting member 32 is not easily deformed, and the first connecting member 32 and the first appearance part 231 have a relatively large contact area, thereby reliably supporting the first appearance part 231.

The first voice coil assembly 34 is disposed on a side of the connection member 32 facing the magnet 14 and spaced apart from the magnet 14, and a first vibration gap 301 is formed between the first voice coil assembly 34 and the magnet 14. The first voice coil assembly 34 includes a core 341 and a coil 343 disposed around the outer circumference of the core 341. The coil 343 is electrically connected to the main board of the electronic device 200, and when a current (e.g., an alternating current or an audio current) is applied, the coil is forced to move relative to the magnet 14, so that the first appearance part 231 is driven by the first connector 32 to vibrate and generate sound. In this embodiment, the iron core 341 is a magnet, and is capable of generating a magnetic field with a certain strength, and receiving a repulsive force away from the magnet 14 in the constant magnetic field generated by the magnet 14 to partially or completely cancel the drooping force of the first electromagnetic driving module 30 on the first appearance member 231, so as to prevent the first appearance member 231 from being deformed due to the existence of the first electromagnetic driving module 30, and enable the first appearance member 231 to have a long service life. In other embodiments, the core 341 may be an iron block without permanent magnetism.

Further, in the present embodiment, the first electromagnetic driving module 30 further includes a first supporting member 36, and the first supporting member 36 is disposed between the first connecting member 32 and the first voice coil assembly 34, and is used for enhancing the connection strength between the first connecting member 32 and the first voice coil assembly 34. In the present embodiment, the first support 36 is made of magnetic steel. Since the first connector 32 is thin-sheet shaped, a central connector, i.e., the first support 36, is required to be disposed between the first connector 32 and the first voice coil assembly 34 to prevent the first voice coil assembly 34 from falling off from the first connector 32. Further, when the first supporting element 36 and the first connecting element 32 project toward the plane where the first connecting element 32 is located (for example, project toward the plane where the first appearance component 231 is located), the projection of the first supporting element 36 falls into the projection of the first connecting element 32, so that the large contact area between the first connecting element 32 and the first appearance component 231 can be ensured, meanwhile, the connection area between the first supporting element 36 and the first connecting element 23 is relatively small, and the first appearance component 231 is prevented from being pulled and deformed due to the existence of the first supporting element 36. Further, the first supporting member 36 is connected to the elastic member 18 to assemble the electroacoustic module 100 into a modular structure.

Referring to fig. 6, in the present embodiment, the first supporting member 36 includes a bottom wall 361 and a peripheral wall 363, the bottom wall 361 is substantially in a plate shape and is connected between the first connector 32 and the first voice coil assembly 34, and the peripheral wall 363 is disposed on a side of the bottom wall 361 away from the first connector 32 and is connected to the elastic member 18. The peripheral wall 363 protrudes toward the magnetic circuit system 10 relative to the first connecting member 32 to form a space for accommodating the first voice coil assembly 34 with the bottom wall 361, and at this time, the peripheral wall 363 is disposed around the periphery of the first voice coil assembly 34, and the space is correspondingly communicated with the space formed by the frame 123 of the fixing member 12, so as to provide a sufficient space for the vibration of the first voice coil assembly 34, and the electroacoustic module 100 has a smaller weight and thickness, which is beneficial for the light and thin design of the electronic device 200.

The second electromagnetic driving module 50 is disposed on a side of the magnetic circuit system 10 away from the first electromagnetic driving module 30, and includes a second connecting member 52 and a second voice coil assembly 54, wherein the second connecting member 52 is connected to the second appearance component 233, and the second voice coil assembly 54 is disposed on a side of the second connecting member 52 facing the magnetic circuit system 10. The second voice coil assembly 54 is in a constant magnetic field generated by the magnet 14, and is capable of being forced to move relative to the magnet 14 when a current is applied, so that the second appearance part 233 is driven by the second connecting piece 52 to vibrate and generate sound. In the present embodiment, the structure of the second electromagnetic driving module 50 is substantially the same as that of the first electromagnetic driving module 50, and the second electromagnetic driving module 50 and the first electromagnetic driving module 30 are disposed substantially symmetrically with respect to the magnetic circuit system, it should be noted that "symmetry" and "substantially symmetry" in the present specification and claims cannot be interpreted as a complete symmetry relationship in a geometric sense in a narrow sense, because manufacturing errors and assembly errors cannot be avoided in manufacturing and assembling these components, and it is not realistic that the components are formed completely symmetrically, and "symmetry" and "substantially symmetry" in the present specification and claims are interpreted as a symmetry relationship that is presented within an error tolerance range, including but not limited to: the element structure is substantially symmetrical, the element positions are substantially symmetrical, the driving relationship is substantially symmetrical, and the like.

Referring to fig. 3 again, in the present embodiment, the second connecting member 52 is substantially in the shape of a thin plate and is used for supporting the second appearance member 233 to prevent the second appearance member 233 from deforming and collapsing and to drive the second appearance member 233 to move. Further, in order to avoid interference with the movement of the second connector 52, the second surface 213 of the middle frame 210 is provided with a second groove 2131 (see fig. 2), and the second groove 2131 communicates with the through hole 215. The second connecting member 52 is accommodated in the second recess 2131, and the second connecting member 52 is spaced apart from the bottom wall of the second recess 2131, so that the second connecting member 52 can move smoothly in the space defined by the second recess 2131 without interference. In the present embodiment, the second connecting member 52 is made of a rigid material, for example, the second connecting member 52 may be a steel plate, an iron plate, or other structures with high rigidity, so that the second connecting member 52 is not easily deformed, and the second connecting member 52 and the second appearance member 233 have a relatively large contact area, thereby reliably supporting the second appearance member 233.

The second voice coil assembly 54 is disposed on a side of the coupling member 52 facing the magnet 14 and spaced apart from the magnet 14, and a second vibration gap 501 is formed between the second voice coil assembly 54 and the magnet 14. The second voice coil assembly 54 includes an iron core 541 and a coil 543 circumferentially disposed around the iron core 541. The coil 543 is electrically connected to the main board of the electronic device 200, and when a current (e.g. an alternating current or an audio current) is applied, the coil is forced to move relative to the magnet 14, so as to drive the second appearance component 233 to vibrate and generate sound through the second connector 52. In this embodiment, the iron core 541 is a magnet, which can generate a magnetic field with a certain strength, and receives a repulsive force far from the magnet 14 in the constant magnetic field generated by the magnet 14 to partially or completely cancel the drooping force of the second electromagnetic driving module 50 on the second appearance member 233, so as to prevent the second appearance member 233 from being deformed due to the existence of the second electromagnetic driving module 50, and enable the second appearance member 233 to have a longer service life. In other embodiments, the core 541 may also be an iron block without permanent magnetism.

Further, in the present embodiment, the second electromagnetic driving module 50 further includes a second support 56, and the second support 56 is disposed between the second connector 52 and the second voice coil assembly 54, and is used for enhancing the connection strength between the second connector 52 and the second voice coil assembly 54. In the present embodiment, the second support 56 is made of magnetic steel. Since the second connector 52 is thin-plate-shaped, a central connector, that is, the second support 56, needs to be disposed between the second connector 52 and the second voice coil assembly 54 to prevent the second voice coil assembly 54 from falling off from the second connector 52. Further, when the second supporting member 56 and the second connecting member 52 project toward the plane where the second connecting member 52 is located (e.g., project toward the plane where the second appearance member 233 is located), the projection of the second supporting member 56 falls into the projection of the second connecting member 52, so that a large contact area between the second connecting member 52 and the second appearance member 233 can be ensured, meanwhile, the connection area between the second supporting member 56 and the second connecting member 23 is relatively small, and the second appearance member 233 is prevented from being pulled and deformed due to the existence of the second supporting member 56. Further, the second support member 56 is connected to the elastic member 18 to assemble the electroacoustic module 100 into a modular structure.

In the embodiment, the second supporting member 56 includes a bottom wall 561 and a peripheral wall 563, the bottom wall 561 is substantially a plate and is connected between the second connecting member 52 and the second voice coil assembly 54, and the peripheral wall 563 is disposed on a side of the bottom wall 561 facing away from the second connecting member 52 and is connected to the elastic member 18. The peripheral wall 563 protrudes toward the magnetic circuit system 10 relative to the second connecting member 52 to form a space for accommodating the second voice coil assembly 54 with the bottom wall 561, and at this time, the peripheral wall 563 is disposed around the outer periphery of the second voice coil assembly 54, and the space is correspondingly communicated with the space formed by the frame 123 of the fixing member 12, so as to provide a sufficient space for the vibration of the second voice coil assembly 54, and the electroacoustic module 100 has a smaller weight and thickness, which is beneficial to the design of the electronic device 200.

In electronic equipment and electroacoustic module thereof that this application embodiment provided, with first electromagnetic drive module, second electromagnetic drive module sets up respectively in magnetic circuit's both sides, and connect respectively in electronic equipment's first outward appearance part and second outward appearance part, wherein, first electromagnetic drive module is when inserting audio current, can atress and drive first outward appearance part vibration sound production in magnetic circuit's constant magnetic field, second electromagnetic drive module is when inserting audio current, can atress and drive second outward appearance part vibration sound production in magnetic circuit's constant magnetic field. Through such scheme, can directly drive electronic equipment's outward appearance part by electroacoustic module and vibrate in order directly to propagate sound to the external world (if propagate in user's ear), consequently can avoid offering the passageway that supplies sound transmission (if go out the sound hole) on electronic equipment's shell to the integrality and the uniformity of electronic equipment's shell structure have been guaranteed. Furthermore, because the first electromagnetic driving module and the second electromagnetic driving module share the same magnetic circuit system, the structure of the electroacoustic module capable of generating sound on two sides is simplified, the thickness of the electronic equipment can be reduced, and the development trend of miniaturization and light weight of the electronic equipment is met.

In the above embodiments provided in the present application, the first appearance part 231 and the second appearance part 233 are both display screens, and are used as loads of the electroacoustic module 100, and vibrate and sound under the driving of the electroacoustic module 100. The display screen may be an Active-matrix organic light-emitting diode (AMOLED) display panel. The AMOLED display screen is a self-luminous display screen, and a Back Light Module (BLM) is not required. Therefore, when the substrate in the AMOLED display screen is made of a flexible resin material, such as Polyethylene Terephthalate (PET), the AMOLED display screen can have a bendable characteristic, so that the display screen can smoothly vibrate under the driving of the electroacoustic module 100, noise is avoided, and audio output is guaranteed to have good tone quality. In another embodiment, the display panel may be an Organic Light-Emitting Diode (OLED) display panel.

In other embodiments, the first appearance part 231 and the second appearance part 233 may be other types of elements, for example, as an embodiment, the first appearance part 231 includes a housing and a display screen, the housing and the display screen form a part of the appearance surface of the electronic device 200, and the display screen is connected to the first electromagnetic driving module 30; the second external member 231 may also include a housing and a display screen, the housing and the display screen forming another part of the external surface of the electronic device 200, and the display screen being connected to the second electromagnetic driving module 50. As another embodiment, the first appearance part 231 includes a display screen, which forms a part of the appearance surface of the electronic device 200, is connected to the first electromagnetic driving module 30, and is driven by the first electromagnetic driving module 30 to vibrate and generate sound; the second appearance member 233 includes a housing which forms a part of the appearance surface of the electronic device 200, is connected to the second electromagnetic driving module 50, and is driven by the second electromagnetic driving module 50 to vibrate and generate sound. The description is not exhaustive, and one of the embodiments is a display screen, and the other is a housing of the electronic device 200.

Referring to fig. 7, in an actual application scenario, the electronic device 200 provided in the embodiment of the present application may be used as a smartphone terminal, in which case, the electronic device 200 generally further includes one or more (only one shown in fig. 7) of the following components: a processor 102, a memory 104, a capture module 108, an audio circuit 110, an input module 118, a power module 122, and one or more applications, wherein the one or more applications may be stored in the memory 104 and configured to be executed by the one or more processors 102. It will be understood by those skilled in the art that the structure shown in fig. 7 is merely illustrative and is not intended to limit the structure of the electronic device 200. For example, electronic device 200 may also include more or fewer components than shown in FIG. 7, or have a different configuration than shown in FIG. 7.

The photographing module 108 may be a camera, which is disposed on the appearance structure assembly 230 and is used for performing a photographing task, for example, taking a picture, a video, or making a video phone call. The audio circuitry 110, speaker 101, sound jack 103, microphone 105 collectively provide an audio interface between a user and the electronic device 200. In this embodiment, the input module 118 may include the physical keys 107, the touch screen 109 disposed on the display screen, and the like, and the touch screen 109 may collect touch operations of the user on or near the touch screen 109 (for example, operations of the user on or near the touch screen 109 using any suitable object or accessory such as a finger, a stylus, and the like) and drive the corresponding connection device according to a preset program.

The appearance structure component 230 is a display screen for displaying information input by a user, information provided to the user, and various graphical user interfaces of the electronic device 200, which may be composed of graphics, text, icons, numbers, videos, and any combination thereof.

The power module 122 is used to provide a supply of power to the processor 102 and other components. In particular, power module 122 may include a power management device, one or more power sources (e.g., batteries or ac power), a charging circuit, a power failure detection circuit, an inverter, a power status indicator light, and any other components associated with the generation, management, and distribution of power within electronic components.

It should be understood that the electronic device 200 described above is not limited to a smartphone terminal, but it should refer to a computer device that can be used in mobile. Specifically, the electronic device 200 is a mobile computer device equipped with an intelligent operating device, and the electronic device 200 includes, but is not limited to, a smart phone, a smart watch, a notebook, a tablet computer, a POS device, and even a vehicle-mounted computer.

Referring to fig. 8, based on the electronic device 200, an embodiment of the present application further provides an audio output method, which includes steps S110 to S150.

Step S110: when the electronic equipment acquires an audio file to be played, the electronic equipment determines that the first appearance component and the second appearance component face a user.

Alternatively, the audio files to be played may be from a source including audio and video files, answering and making phone calls, audio and video calls, and so on. In this embodiment, the determining, by the distance sensor, that one of the first appearance component and the second appearance component faces the user may specifically include: and calling a distance sensor of the electronic equipment to acquire a distance parameter between the terminal and the human body, and determining a user facing the first appearance component and the second appearance component according to the distance parameter.

In some embodiments, the determining, by the ultrasonic sensor, that one of the first appearance component and the second appearance component faces the user may specifically include: the electroacoustic module is used for sending ultrasonic signals to two sides of the electronic equipment, the ultrasonic signals are received through a microphone or a microphone of the electronic equipment after reaching a human body or an obstacle, distance parameters between the terminal and the human body are judged according to the front and back reflected ultrasonic signals, and a user facing the first appearance component and the second appearance component are determined according to the distance parameters.

Step S130: and if the first appearance component faces the user, inputting audio current to the first electromagnetic driving module according to the audio file.

Step S150: and if the second appearance component faces the user, inputting audio current to the second electromagnetic driving module according to the audio file.

According to the audio output method, the first appearance part is driven to vibrate and sound through the first electromagnetic driving module, the second appearance part is driven to vibrate and sound through the second electromagnetic driving module, the appearance part which can sound can be determined according to the actual orientation of the electronic equipment currently used by a user, the situation that the user needs to turn the electronic equipment to the surface of one side only with the sound outlet when the electronic equipment is used is avoided, and therefore the electronic equipment has relatively high use convenience.

In this specification, particular features or characteristics described may be combined in any one or more embodiments or examples as appropriate. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. An electroacoustic module, comprising:

a magnetic circuit system for generating a constant magnetic field;

the first electromagnetic driving module is arranged on one side of the magnetic circuit system and is positioned in the constant magnetic field, and a first vibration gap is formed between the first electromagnetic driving module and the magnetic circuit system; the first electromagnetic driving module is used for being connected with a first load and driving the first load to vibrate when current is switched on; and

the second electromagnetic driving module is arranged on one side, away from the first electromagnetic driving module, of the magnetic circuit system and is positioned in the constant magnetic field, and a second vibration gap is formed between the second electromagnetic driving module and the magnetic circuit system; the second electromagnetic driving module is used for being connected with a second load and driving the second load to vibrate when current is switched on.

2. The electro-acoustic module according to claim 1, characterised in that said magnetic circuit comprises a fixed part and a magnet arranged on said fixed part, said magnet comprising a permanent magnet or/and an electromagnet; the first vibration gap is formed between the magnet and the first electromagnetic drive module.

3. The electro-acoustic module set forth in claim 2, wherein said magnetic circuit further comprises a resilient member connected between said stationary member and said first electromagnetic driving module.

4. The electroacoustic module of claim 2 wherein the mounting member comprises a support portion and a frame surrounding an outer periphery of the support portion, the support portion having a through hole, the magnet being secured in the through hole; one end of the frame body protrudes towards the first electromagnetic driving module relative to the bearing part so as to form a space for partially accommodating the first electromagnetic driving module together with the bearing part.

5. The electroacoustic module of claim 4 wherein the mounting further comprises a connector portion attached to the frame and adapted to be attached to a location of use of the electroacoustic module by a fastener.

6. The electro-acoustic module set forth in claim 1, wherein said first electro-magnetic driver module comprises a first voice coil assembly and a first connector for connecting said first load, said first voice coil assembly being disposed on a side of said first connector facing said magnetic circuit system, said first vibration gap being formed between said first voice coil assembly and said magnetic circuit system.

7. The electro-acoustic module of claim 6, wherein the first electro-magnetic driver module further comprises a first support; the first supporting piece comprises a bottom wall and a peripheral wall, the bottom wall is arranged between the first connecting piece and the first voice coil assembly, and the peripheral wall is arranged on one side of the bottom wall, which is far away from the first connecting piece, and surrounds the periphery of the first voice coil assembly.

8. The electroacoustic module of claim 7 wherein the first coupler is plate-shaped, and wherein a projection of the first coupler falls within a projection of the first coupler when the first coupler and the first coupler are projected toward a plane in which the first coupler is located.

9. The electro-acoustic module of claim 1, wherein the second electro-magnetic driver module comprises a second voice coil assembly and a second connecting member, the second connecting member is used for connecting the second load, the second voice coil assembly is disposed on a side of the second connecting member facing the magnetic circuit system, and the second vibration gap is formed between the second voice coil assembly and the magnetic circuit system.

10. The electroacoustic module of any of claims 1 to 9 wherein the first and second electromagnetic driving modules are disposed on opposite sides of the magnetic circuit system and are symmetrically disposed about the magnetic circuit system.

11. An electronic device, comprising a middle frame, a first appearance member, a second appearance member, and the electroacoustic module of any one of claims 1 to 10; the first appearance component and the second appearance component are respectively arranged on two opposite sides of the middle frame, and the electroacoustic module is connected to the middle frame; the first appearance part is connected to the first electromagnetic driving module and is driven by the first electromagnetic driving module to vibrate; the second appearance component is connected to the second electromagnetic driving module and is driven by the second electromagnetic driving module to vibrate.

12. The electronic device of claim 11, wherein the middle frame includes a first surface and a second surface that face away from each other, the first surface opposing the first appearance member, the second surface opposing the second appearance member; the middle frame is provided with a containing hole, the containing hole penetrates through the first surface and the second surface, and the electroacoustic module is arranged in the containing hole.

13. The electronic device of claim 12, wherein the receiving hole is a stepped hole, the middle frame further comprising a stepped surface in the stepped hole, the stepped surface facing in the same direction as the second surface, the magnetic circuit system being connected to the stepped surface.

14. The electronic device of any of claims 11-13, wherein the first appearance component comprises a display screen or a housing; the second appearance component comprises a display screen or housing.

15. An audio output method applied to the electronic device according to any one of claims 11 to 14, the audio output method comprising:

when the electronic equipment acquires an audio file to be played, determining that one of the first appearance component and the second appearance component faces a user;

if the first appearance component faces towards the user, inputting audio current to the first electromagnetic driving module according to the audio file, and

and if the second appearance component faces the user, inputting audio current to the second electromagnetic driving module according to the audio file.