CN107566965A

CN107566965A - A kind of vibration-sound generating device and mobile terminal

Info

Publication number: CN107566965A
Application number: CN201710735005.2A
Authority: CN
Inventors: 夏小聪
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2017-08-24
Filing date: 2017-08-24
Publication date: 2018-01-09

Abstract

The embodiment of the invention discloses a kind of vibration-sound generating device and mobile terminal, described device is arranged at the enclosure interior of mobile terminal, and described device includes：Vibrator and loudspeaker；Wherein, the vibrator includes the first transmission parts and the vibrating member that can be vibrated, and one end of first transmission parts connects the vibrating member, and the other end connects the housing；The vibrating member, in vibration, driving housing to be vibrated by first transmission parts；The loudspeaker includes the second transmission parts and the voice coil loudspeaker voice coil that can be vibrated, and one end of second transmission parts connects the voice coil loudspeaker voice coil, and the other end connects the housing；The voice coil loudspeaker voice coil, in vibration, hull vibration to be driven by second transmission parts；In this way, when vibrator vibrates, directly drive housing to be vibrated, vibrating effect can be improved；In addition, by being set without sender, the hardware manufacturing cost of mobile terminal can be reduced.

Description

Vibration sound production device and mobile terminal

Technical Field

The invention relates to a terminal vibration sound production technology, in particular to a vibration sound production device and a mobile terminal.

Background

At present, the mobile terminal is completely integrated into the life of people and becomes an indispensable tool for modern people. The functions of mobile terminals are increasing and the structures of the mobile terminals are becoming more and more complex, but the demands of people for the appearance of the mobile terminals are becoming thinner and thinner, which requires fewer parts and smaller size of the mobile terminals.

In order to meet the requirement of a user for thinning and lightening a mobile terminal, in the prior art, a speaker, an earpiece, and a vibrator which simultaneously vibrate to generate sound are applied to the mobile terminal, as shown in fig. 1, the mobile terminal includes a baseband circuit 10, a vibrator 30, and a speaker (or earpiece) 20, wherein the baseband circuit is electrically connected to the speaker (or earpiece) 20 and the vibrator 30, respectively;

however, the existing vibrator is usually implemented by using a vibration motor inside the mobile terminal housing, and the vibration of the vibration motor needs to be conducted to the mobile terminal housing to achieve a corresponding effect, which may weaken the vibration effect; in addition, when the vibrating diaphragm in the loudspeaker vibrates, the vibrating diaphragm can be heard by a user only through the sound outlet hole, and the hardware manufacturing cost of the mobile terminal is increased due to the arrangement of the sound outlet hole.

Disclosure of Invention

In order to solve the above technical problems, embodiments of the present invention provide a vibration sound generating device and a mobile terminal, which can improve a vibration effect and reduce a hardware manufacturing cost of the mobile terminal by setting no sound output hole.

In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:

the embodiment of the invention provides a vibration sound-producing device which is arranged in a shell of a mobile terminal, and the device comprises: a vibrator and a speaker; wherein,

the vibrator comprises a first transmission part and a vibrating piece capable of vibrating, one end of the first transmission part is connected with the vibrating piece, and the other end of the first transmission part is connected with the shell; the vibrating piece is used for driving the shell to vibrate through the first transmission part during vibration;

the loudspeaker comprises a second transmission part and a voice coil capable of vibrating, wherein one end of the second transmission part is connected with the voice coil, and the other end of the second transmission part is connected with the shell; and the voice coil is used for driving the shell to vibrate through the second transmission part when vibrating.

Optionally, the vibrator further includes: a magnet fixed to the housing and a coil fixed to the vibrating member; the coil is coupled with the magnet, so that the coil is driven by external force when being electrified; and the coil is used for driving the vibrating block to vibrate when driven by external force.

Optionally, the second transmission member and/or the voice coil is located inside the coil.

Optionally, the magnet is a hollow magnet, and the second transmission member and/or the voice coil are located inside the magnet.

Optionally, the first transmission component is a rigid body.

Optionally, the first transmission member is an elastic element.

Optionally, the material of the housing is a diaphragm material.

Optionally, the speaker further includes a diaphragm, the second transmission component is connected to the housing through the diaphragm, and the diaphragm is in close contact with the housing;

and the voice coil is used for driving the vibrating diaphragm to vibrate through the second transmission part when vibrating, so that the vibrating diaphragm vibrates to produce sound.

Optionally, the diaphragm is a flat diaphragm.

The embodiment of the invention also provides a mobile terminal which comprises any one of the vibration sounding devices.

In the vibration sound-generating device and the mobile terminal provided by the embodiment of the invention, the vibration sound-generating device is arranged in the shell of the mobile terminal, and the device comprises: a vibrator and a speaker; the vibrator comprises a first transmission part and a vibrating piece capable of vibrating, wherein one end of the first transmission part is connected with the vibrator, and the other end of the first transmission part is connected with the shell; the vibrating piece is used for driving the shell to vibrate through the first transmission part during vibration; the loudspeaker comprises a second transmission part and a voice coil capable of vibrating, wherein one end of the second transmission part is connected with the voice coil, and the other end of the second transmission part is connected with the shell; the voice coil is used for driving the shell to vibrate through the second transmission part when the voice coil vibrates; therefore, when the vibrator vibrates, the shell is directly driven to vibrate, and the vibration effect can be improved; in addition, the hardware manufacturing cost of the mobile terminal can be reduced by arranging no sound outlet hole.

Drawings

Figure 1 is a schematic view of a prior art vibrating sound generating device,

fig. 2 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention;

fig. 3 is a communication network system architecture diagram according to an embodiment of the present invention;

FIG. 4 is a schematic view of a vibrator according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a loudspeaker according to an embodiment of the invention;

fig. 6 is a schematic circuit structure diagram of a mobile terminal according to an embodiment of the present invention;

fig. 7 is a schematic view of a vibration sound-generating device according to an embodiment of the present invention.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.

The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.

Referring to fig. 2, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 2 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile terminal in detail with reference to fig. 2:

the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex-Long Term Evolution), and TDD-LTE (Time Division duplex-Long Term Evolution).

WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 2 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.

Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 2 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.

In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.

Referring to fig. 3, fig. 3 is an architecture diagram of a communication network system according to an embodiment of the present invention, where the communication network system is an LTE (Long Term Evolution) system of the universal mobile telecommunications technology, and the communication network system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio access network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.

Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.

The E-UTRAN202 includes an eNodeB (evolved base station) 2021 and other enodebs 2022, etc. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.

The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and charging functions Entity) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.

Although the LTE System is described as an example, it should be understood by those skilled in the art that the present invention is not limited to the LTE System, but may be applied to other wireless communication systems, such as GSM (Global System for mobile communications), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), future new network systems, and the like.

Based on the above mobile terminal hardware structure and communication network system, the present invention provides various embodiments of the method.

First embodiment

A first embodiment of the present invention provides a vibration sound generating device, which can be applied to a mobile terminal having a vibration function and a sound generating function.

Here, the above-mentioned mobile terminal includes, but is not limited to, a mobile phone, a notebook computer, a camera, a PDA, a PAD, a PMP, a navigation device, and the like. The mobile terminal may be connected to the internet, wherein the connection may be made through a mobile internet network provided by an operator, or through a network connection accessed to a wireless access point.

Here, if the mobile terminal has an operating system, the operating system may be UNIX, Linux, Windows, Android (Android), Windows Phone, or the like.

It should be noted that the type, shape, size, and the like of the display screen on the mobile terminal are not limited, and the display screen on the mobile terminal may be a liquid crystal display screen, for example.

In a first embodiment of the present invention, a vibration sound generating apparatus is provided inside a housing of a mobile terminal, the apparatus including: the device comprises a vibrator and a loudspeaker, wherein the vibrator is used for realizing a vibration function, and the loudspeaker is used for realizing a sound production function;

fig. 4 is a schematic view of a vibrator according to an embodiment of the present invention, and as shown in fig. 4, the vibrator may include: a first transmission member 301 and a vibrating member 302 capable of vibrating;

one end of the first transmission member 301 is connected to the vibrating member, and the other end is connected to the housing 300;

the vibrating element 302 is configured to drive the housing to vibrate through the first transmission component when the housing vibrates in a direction perpendicular to the housing.

That is, the vibrating member, the first transmission member and the housing form a mechanical transmission structure capable of effectively transmitting the vibrating effect of the vibrating member; so, when the vibrator vibrates, can directly drive the casing and vibrate, compare with the scheme that current vibration motor through the casing is inside vibrates, improved the vibration effect.

For example, the vibrating element is generally a rigid body, and can vibrate under the driving of an external electrical signal; in the embodiment of the invention, the vibration direction of the vibrating piece is not limited; preferably, the vibrating member is a piezoelectric vibrating member, i.e., a vibrating member prepared based on the piezoelectric effect.

The mass of the vibrating piece can be set according to the actual application requirement, and when the vibrating piece is subjected to the same external force, the larger the mass of the vibrating piece is, the poorer the vibration effect of the vibrating piece is; therefore, when the mass of the vibrating piece is smaller than the mass threshold value, the vibration effect generated by the vibrating piece can be ensured.

Here, the mass threshold may be determined according to the magnitude of the force applied to the vibrating member.

In the embodiment of the present invention, the number of the vibrating elements is not limited, that is, the vibrator may include only one vibrating element, or may include at least two vibrating elements; when the number of the vibrating pieces in the vibrator is greater than or equal to 2, each vibrating piece is connected with the first transmission part.

Here, when the mobile terminal described above is a mobile phone, the housing to which the first transmission member is connected may be a front case of the mobile terminal or a rear case of the mobile terminal.

Optionally, the type of the first transmission component may be determined according to the actual application requirement.

For example, in order to achieve a better vibration effect, the first transmission component is a rigid body, so that the vibration generated by the vibrating piece can be better transmitted to the shell through the first transmission component, and the vibration effect is improved; in one example, the first transmission member may be a metallic material having a hardness exceeding a hardness threshold.

In order to reduce the damage of the vibration to the mobile terminal shell, the first transmission component can be an elastic element, so that the vibration generated by the vibrating piece can be transmitted to the shell after being buffered by the elastic element, and the damage of the vibration to the mobile terminal shell is favorably reduced; in one example, the first transmission member is a spring.

Alternatively, the shape of the first transmission component may be determined according to the actual application requirement, for example, the shape of the first transmission component may be a long rod shape or other irregular shapes.

Optionally, the housing is a flat plate-shaped housing; in order to improve the vibration effect transmitted to the shell, the vibration direction of the vibration piece is not parallel to the plane of the shell, so that when the vibration of the vibration piece is transmitted to the shell, the shell of the mobile terminal can effectively vibrate;

preferably, in order to improve the vibration effect of the housing in the direction perpendicular to the housing, the vibration direction of the vibrating member may be perpendicular to the plane of the housing.

In practical implementation, to ensure that the vibrating element can vibrate, the vibrator may drive the vibrating element to vibrate in an electromagnetic driving manner, and in one example, as shown in fig. 3, the vibrator may include a coil 303 and a magnet 304 coupled to the coil, and in practical operation, the coil is energized to drive the magnet to vibrate based on the principle of electromagnetic induction; magnet and vibrating piece are fixed, so, when magnet vibrated, can drive vibrating piece and vibrate.

Fig. 5 is a schematic diagram of a speaker according to an embodiment of the present invention, and as shown in fig. 5, the speaker may include: a second transmission member 401 and a voice coil 402 capable of vibrating;

one end of the second transmission component 401 is connected with the voice coil 402, and the other end is connected with the shell 300;

and the voice coil 402 is used for driving the shell to vibrate through the second transmission part when the voice coil vibrates, so that the shell vibrates to produce sound.

It can be seen that the voice coil can drive the shell to vibrate when vibrating, and because sound is sound wave generated by the vibration of an object, the voice coil can vibrate to generate sound when the shell vibrates.

Here, since the case performs vibration sound generation, a sound emitting hole for emitting sound may not be provided in the mobile terminal, and the manufacturing cost of the mobile terminal may be reduced.

In the embodiment of the present invention, the shape and the material of the voice coil are not limited, for example, the voice coil may be a cylindrical voice coil, a voice coil with a flat structure, or the like, and the material of the voice coil may be a metal material or others;

it will be appreciated that, in one example, to ensure proper operation of the speaker, the voice coil may be disposed within the magnetic gap, and when the voice coil is energized, the voice coil is subjected to lorentz forces to drive the housing to vibrate and produce sound.

Optionally, the type of the second transmission component may be determined according to the actual application requirement; for example, in order to achieve a better vibration transmission effect, the second transmission component is a rigid body, so that the vibration generated by the voice coil can be transmitted to the shell through the second transmission component better, and the vibration effect is improved; in one example, the second transmission member may be a metallic material having a hardness exceeding a hardness threshold.

Alternatively, the shape of the second transmission member may be determined according to the actual application requirements, for example, the shape of the first transmission member may be a long rod shape or other irregular shapes.

It is understood that the position of the housing to which the second transmission member is connected in the mobile terminal can be determined according to actual requirements; in one example, a user generally needs to listen to the sound emitted from the speaker at the upper end of the front case of the mobile terminal, and then, in order to improve the listening effect of the sound emitted from the speaker, the case to which the second transmission member is connected may be the front case of the mobile terminal;

in another example, to ensure stability of the front case of the mobile terminal, the case to which the second transmission member is connected may be a middle case or a rear case of the mobile terminal.

It will be appreciated that the housing to which the second transmission member is connected acts as a diaphragm for the loudspeaker, and then, in order to enhance the sound-producing effect of the vibration of the housing, the material of the housing may be a diaphragm material.

The diaphragm material can be paper diaphragm, wood diaphragm, plastic diaphragm, metal diaphragm, biological diaphragm; preferably, to ensure the stability of the housing, the material of the housing may be a metal diaphragm material or a plastic diaphragm material.

In practical implementation, the mobile terminal described above may further include a baseband circuit; fig. 6 is a schematic circuit structure diagram of a mobile terminal according to an embodiment of the present invention, and as shown in fig. 6, the mobile terminal may include: a baseband circuit 501 and a vibration sound generating device 502; the baseband circuit 501 is electrically connected to the vibration sound generating device 502.

The baseband circuit is positioned in the shell of the mobile terminal, and in practical implementation, the baseband circuit sends an electric signal to the vibrator and the loudspeaker of the vibration sound-generating device, the vibrator converts the electric signal into mechanical vibration, and the loudspeaker converts the electric signal into sound waves, so that the vibration sound-generating device has the functions of the loudspeaker, the receiver and the vibrator, and can replace the traditional loudspeaker, the receiver and the vibrator; in addition, the mobile terminal is not provided with the sound outlet hole, so that the number of parts of the mobile terminal can be reduced, the material cost and the assembly cost of the mobile terminal are reduced, the production cost is further reduced, and the mobile terminal is lighter and thinner.

The working principle of the vibration sound production device according to the embodiment of the present invention is described below through several application scenarios. When voice communication is carried out, the baseband circuit sends an electric signal to a loudspeaker of the vibration sound-generating device during voice communication, and the loudspeaker of the vibration sound-generating device replaces the traditional loudspeaker, a receiver and a receiver to enable the mobile terminal to generate sound; when music is played, the baseband circuit sends an electric signal to a loudspeaker of the vibration sound-generating device, and the loudspeaker of the vibration sound-generating device replaces the traditional loudspeaker, a receiver and a receiver to enable the mobile terminal to generate sound; when the game application is operated, the baseband circuit sends electric signals to a loudspeaker and a vibrator of the vibration sound-generating device, and the vibration sound-generating device is used as the loudspeaker, a receiver and the vibrator to enable the mobile terminal to generate sound and vibrate simultaneously.

The vibration sound-producing device of the first embodiment of the present invention is arranged inside a housing of a mobile terminal, and the device includes: a vibrator and a speaker; the vibrator comprises a first transmission part and a vibrating piece capable of vibrating, wherein one end of the first transmission part is connected with the vibrating piece, and the other end of the first transmission part is connected with the shell; the vibrating piece is used for driving the shell to vibrate through the first transmission part during vibration; the loudspeaker comprises a second transmission part and a voice coil capable of vibrating, wherein one end of the second transmission part is connected with the voice coil, and the other end of the second transmission part is connected with the shell; the voice coil is used for driving the shell to vibrate through the second transmission part when the voice coil vibrates; therefore, when the vibrator vibrates, the shell is directly driven to vibrate, and the vibration effect can be improved; in addition, the hardware manufacturing cost of the mobile terminal can be reduced by arranging no sound outlet hole.

Second embodiment

In order to further embody the object of the present invention, the first embodiment of the present invention is further illustrated.

Illustratively, the vibrator further comprises: a magnet fixed to the housing and a coil fixed to the vibrating member; the coil is coupled with the magnet, so that the coil is driven by external force when being electrified; the coil is used for driving the vibrating block to vibrate when driven by external force;

for the position of the second actuator member and the voice coil, in one example, the second actuator member and/or the voice coil are located inside the coil; in another example, the magnet is a hollow magnet, and the second actuator and/or the voice coil are/is located inside the magnet; in this way, the second transmission part and/or the voice coil are/is arranged in the inner space of the coil, or the second transmission part and/or the voice coil are/is arranged in the inner space of the magnet, so that the inner space of the terminal can be effectively multiplexed, and the utilization efficiency of the space resources in the terminal is improved.

Fig. 7 is a schematic view of a vibration sound generating device according to an embodiment of the present invention, and as shown in fig. 7, the vibrator includes: a magnet 304, a coil 303, a first transmission member 301 and two vibrators 302, wherein the magnet 304 is a hollow magnet, and a second transmission member 401 is arranged in the magnet 304; the first transmission member 301 and the second transmission member 401 are both connected to the housing 300, and the second transmission member 401 is connected to a voice coil (not shown in fig. 6).

Third embodiment

Exemplarily, the loudspeaker further comprises a diaphragm, the second transmission part is connected with the housing through the diaphragm, and the diaphragm is in close contact with the housing;

That is, the diaphragm is used to perform vibration sound production, and the case in close contact with the diaphragm plays a role of transmitting sound, and the material of the case may be set according to circumstances.

In order to ensure the contact area between the diaphragm and the housing to ensure the sound wave transmission efficiency, in one example, the housing is a flat plate-shaped housing, and the diaphragm is a flat plate-shaped diaphragm, so that the sound wave emitted by the vibration of the diaphragm can be directly transmitted to the housing, and the human ear can clearly hear the sound as long as the human ear is close to the housing.

Fourth embodiment

In view of the above-mentioned vibration sound-generating device, a fourth embodiment of the present invention further provides a mobile terminal, which has a vibration function and a sound-generating function.

In the embodiment of the present invention, the mobile terminal includes a vibration sound-generating device, the vibration sound-generating device is disposed inside a housing of the mobile terminal, and the device includes: the device comprises a vibrator and a loudspeaker, wherein the vibrator is used for realizing a vibration function, and the loudspeaker is used for realizing a sound production function;

as shown in fig. 4, the vibrator may include: a first transmission member 301 and a vibrating member 302 capable of vibrating;

In practical implementation, to ensure that the vibrating element can vibrate, the vibrator may drive the vibrating element to vibrate in an electromagnetic driving manner, and in one example, as shown in fig. 4, the vibrator may include a coil 303 and a magnet 304 coupled to the coil, and in practical operation, the coil is energized to drive the magnet to vibrate based on the principle of electromagnetic induction; magnet and vibrating piece are fixed, so, when magnet vibrated, can drive vibrating piece and vibrate.

As shown in fig. 5, the speaker may include: a second transmission member 401 and a voice coil 402 capable of vibrating;

In practical implementation, the mobile terminal described above may further include a baseband circuit; as shown in fig. 6, the mobile terminal may include: a baseband circuit 501 and a vibration sound generating device 502; the baseband circuit 501 is electrically connected to the vibration sound generating device 502.

In the mobile terminal according to the embodiment of the present invention, the vibration sound generating device is disposed inside the housing of the mobile terminal, and the vibration sound generating device includes: a vibrator and a speaker; the vibrator comprises a first transmission part and a vibrating piece capable of vibrating, wherein one end of the first transmission part is connected with the vibrating piece, and the other end of the first transmission part is connected with the shell; the vibrating piece is used for driving the shell to vibrate through the first transmission part during vibration; the loudspeaker comprises a second transmission part and a voice coil capable of vibrating, wherein one end of the second transmission part is connected with the voice coil, and the other end of the second transmission part is connected with the shell; the voice coil is used for driving the shell to vibrate through the second transmission part when the voice coil vibrates; therefore, when the vibrator vibrates, the shell is directly driven to vibrate, and the vibration effect can be improved; in addition, the hardware manufacturing cost of the mobile terminal can be reduced by arranging no sound outlet hole.

As shown in fig. 7, the vibrator includes: a magnet 304, a coil 303, a first transmission member 301 and two vibrators 302, wherein the magnet 304 is a hollow magnet, and a second transmission member 401 is arranged in the magnet 304; the first transmission member and the second transmission member are both connected to the housing 300.

It should be understood that the above is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and the vibrator of the vibration sound generating device may vibrate based on the magnetostrictive vibration principle, or based on the piezoelectric ceramic type vibration, and all the equivalent structures or equivalent flow transformations implemented by the contents of the present specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a vibration sound generating mechanism which characterized in that sets up inside mobile terminal's casing, the device includes: a vibrator and a speaker; wherein,

2. The apparatus of claim 1, wherein the vibrator further comprises: a magnet fixed to the housing and a coil fixed to the vibrating member; the coil is coupled with the magnet, so that the coil is driven by external force when being electrified; and the coil is used for driving the vibrating block to vibrate when driven by external force.

3. A device according to claim 2, wherein the second transmission member and/or voice coil is located inside the coil.

4. The device of claim 2, wherein the magnet is a hollow magnet and the second actuator member and/or voice coil is located inside the magnet.

5. The device of any one of claims 1 to 4, wherein the first transmission member is a rigid body.

6. A device according to any one of claims 1 to 4, characterised in that the first transmission member is an elastic element.

7. The apparatus of claim 1, wherein the material of the housing is a diaphragm material.

8. The apparatus of claim 1, wherein the speaker further comprises a diaphragm, the second transmission member is connected to the housing through the diaphragm, and the diaphragm is in close contact with the housing;

9. The apparatus of claim 8, wherein the diaphragm is a flat diaphragm.

10. A mobile terminal, characterized in that it comprises a vibrating sound device according to any one of claims 1 to 9.