KR20110089013A - Receiver module and portable terminal having the same - Google Patents

Abstract

PURPOSE: A receiver module and portable terminal including the same are provided to regenerate all frequency bands as an original sound by including plural vibrators corresponding to each contact board. CONSTITUTION: Plural contact boards(210) are arranged in a separated different domain. A multiple-stage vibrator(220) includes plural vibrators corresponding to each contact board. Each vibrator of the multiple-stage vibrator is constituted for gradually vibrating a specific contact board among plural contact boards according to a frequency band. An actuator(230) is formed for occurring vibration of the multiple-stage vibrator.

Description

RECEIVER MODULE AND PORTABLE TERMINAL HAVING THE SAME

The present invention relates to a bone conduction receiver device of a mobile terminal.

A portable terminal is a portable electronic device that is portable and has one or more functions for inputting and outputting information, making a voice or video call with a counterpart, storing data, and the like.

As functions are diversified, portable terminals may have functions such as taking a picture or a video, playing a music or video file, receiving a game, or broadcasting. Such functions are sometimes incorporated in a portable terminal to implement a multimedia device.

In order to implement various functions and operate components, portable terminals require sufficient support in terms of hardware or software. For example, research has been made for the development of a user interface environment in which a user can easily and conveniently use a mobile terminal in terms of use.

The portable terminal is equipped with a receiver or a speaker device for playing a call or multimedia. However, since the traditional receiver or speaker uses sound waves transmitted through the air, the sound can be heard from the outside, and the user who has hearing loss has limitations in use. To this end, a bone conduction receiver or speaker device has been proposed. Since bone conduction receivers or speakers transmit vibrations directly through the skin or bone to the auditory nerve, there is no need for air and there is no need to use the ear directly.

However, since such a conventional bone conduction receiver or speaker is made of an integrated contact plate and a vibrator in contact with the human body, offset interference of sound between bands may occur, and there is a limitation in implementing all sounds of a wide band.

SUMMARY OF THE INVENTION An object of the present invention is to propose a speaker module and a portable terminal having the same, in which vibrations are not canceled in all bands and easy to express minute frequencies.

In order to solve the above problems, a speaker module and a mobile terminal having the same according to the present invention, a plurality of contact plates disposed in different areas are divided; A plurality of vibrators corresponding to the respective contact plates, wherein each vibrator is configured to vibrate the contact plates specified among the plurality of contact plates according to a frequency band in stages; And an actuator formed to generate vibration of the multi-stage vibrating body.

The plurality of contact plates may be arranged to form concentric images, and each of the contact plates may be formed in the form of a circle, an ellipse or a polygon.

Each vibrator of the multi-stage vibrating body may be configured to move a relatively different distance with respect to the corresponding contact plates.

The moving distance between each vibrator constituting the multi-stage vibrating body and the contact plate corresponding to the multi-stage vibrating body may be formed to be far from the center.

Each vibrator constituting the multi-stage vibrating body may be formed in a ring shape.

Each vibrator may be connected by a connection member.

The outermost vibrator of the multi-stage vibrator is configured to vibrate the contact plate corresponding at the highest frequency, and the vibrators disposed inside the outermost vibrator sequentially correspond to the respective contact plates at the low frequency. It can be configured to vibrate.

A shaft for guiding the multistage vibrating body may be further provided at a center side of the multistage vibrating body. A guide for guiding the vibrators may be further provided between the vibrators constituting the multistage vibrating body.

A soft material may be disposed between the plurality of contact plates.

The multi-stage vibrating body may be implemented by a rigid body capable of elastic deformation.

The actuator may be implemented by a linear motor.

Each of the vibrators constituting the contact plate and the multi-stage vibrator is composed of three, each of which may be configured to correspond to the high, mid and low ranges, respectively.

Each vibrator constituting the multi-stage vibrator may be formed to have a different thickness or material.

A portable terminal related to the present invention also includes a terminal body; A speaker module disposed in the terminal body; And a receiver module disposed separately from the speaker module on the terminal body, wherein the receiver module comprises: a plurality of contact plates disposed in different areas that are divided; A plurality of vibrators corresponding to the respective contact plates, wherein each vibrator is configured to vibrate the contact plates specified among the plurality of contact plates according to a frequency band in stages; And an actuator formed to generate vibration of the multi-stage vibrating body.

According to the receiver module and the portable terminal having the same according to the present invention, since the contact plates are divided and the respective contact plates are vibrated using different vibrators, it is possible to implement using different contact plates for each frequency band. Therefore, the use of one contact plate can significantly reduce the interference of sound generated, and has the advantage of reproducing sound of all frequency bands as the original sound.

1 is a block diagram of a portable terminal related to the present invention.
2 is a front perspective view of an example of a mobile terminal or a mobile terminal according to the present invention;
3 is a rear perspective view of the mobile terminal shown in FIG.
4 is a plan view of a receiver module related to the present invention;
5 is a schematic exploded perspective view of a contact plate, multi-stage vibrating body and actuator according to the present invention;
6 is a schematic cross-sectional view of a receiver module;
7 to 9 are views showing the operating state of the receiver device according to the present invention, Figure 7 is that only the first contact plate vibrates by the first vibrator in the high frequency band, Figure 8 is a second vibrator in the middle FIG. 9 is an operating state diagram showing that the second contact plate also vibrates together, and FIG. 9 shows that the third contact plate also vibrates together by the third vibrator in the high and low band.

Hereinafter, a portable terminal according to the present invention will be described in detail with reference to the drawings. The suffixes "module" and "unit" for components used in the following description are merely given in consideration of ease of preparation of the present specification, and do not impart any particular meaning or role by themselves.

1 is a block diagram of a mobile terminal according to the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory unit 160, and an interface. The unit 170, the controller 180, and the power supply unit 190 may be included. 1 shows a mobile terminal having various components. However, not all illustrated components are required. The mobile terminal may be implemented by more components than the illustrated components, and the mobile terminal may be implemented by fewer components.

The following describes the components in order.

The wireless communication unit 110 may include one or more components for wireless communication between the mobile terminal 100 and another wireless communication system or wireless communication between the mobile terminal 100 and a network in which the mobile terminal 100 is located. . For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a pre-generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

Meanwhile, broadcast related information may be provided through a mobile communication network, and in this case, may be received by the mobile communication module 112.

The broadcast related information may exist in various forms. For example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 may include, for example, Digital Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Media Forward Link Only (MediaFLO), and Digital Video Broadcast- (DVB-H). A digital broadcast signal may be received using a digital broadcast system such as handheld) or ISDB-T (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be configured to be suitable for all broadcast systems providing broadcast signals as well as the digital broadcast system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory unit 160.

The mobile communication module 112 transmits and receives a wireless signal with at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call signal, or a text / multimedia message.

The wireless Internet module 113 is a module for wireless Internet access, and the wireless Internet module 113 can be built in or externally. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

The short range communication module 114 refers to a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

The location information module 115 is a module for checking or obtaining the location of a mobile terminal. A representative example is a GPS (Global Position System) module.

The A / V input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes an image frame such as a still image or a moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame may be displayed on the display unit 151.

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.

The microphone 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The processed voice data may be converted into a form transmittable to the mobile communication base station through the mobile communication module 112 and output in the call mode. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The user input unit 130 generates input data for the user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like. In particular, when the touch pad has a mutual layer structure with the display unit 151 described later, this may be referred to as a touch screen.

The sensing unit 140 detects a current state of the mobile terminal 100 such as an open / closed state of the mobile terminal 100, a location of the mobile terminal 100, presence or absence of a user contact, orientation of the mobile terminal, acceleration / deceleration of the mobile terminal, and the like. To generate a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. The sensing unit 140 may include a proximity sensor 141.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154. Can be.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, the mobile terminal displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays photographed and / or received images, a UI, and a GUI.

The display unit 151 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (flexible). and at least one of a 3D display.

Some of these displays can be configured to be transparent or light transmissive so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display is TOLED (Transparant OLED). The rear structure of the display unit 151 may also be configured as a light transmissive structure. With this structure, the user can see the object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

According to an implementation form of the mobile terminal 100, two or more display units 151 may exist. For example, a plurality of display units may be spaced apart or integrally disposed on one surface of the mobile terminal, or may be disposed on different surfaces.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. Can also be used as an input device. The touch sensor may have, for example, a form of a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in pressure applied to a specific portion of the display unit 151 or capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor may be configured to detect not only the position and area of the touch but also the pressure at the touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and then transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of a mobile terminal surrounded by a touch screen or near the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. Proximity sensors have a longer life and higher utilization than touch sensors.

Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. When the touch screen is capacitive, the touch screen is configured to detect the proximity of the pointer by the change of the electric field according to the proximity of the pointer. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that it is recognized that the pointer is located on the touch screen is referred to as "proximity touch," and on the touch screen The act of actually touching the pointer is referred to as "contact touch". The position where the proximity touch is performed by the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in proximity proximity.

The proximity sensor detects a proximity touch and a proximity touch pattern (eg, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). Information corresponding to the sensed proximity touch operation and the proximity touch pattern may be output on the touch screen.

The sound output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 may also output a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100. The sound output module 152 may include a receiver, a speaker, a buzzer, and the like. Among these, the mechanical structure of the receiver related to the present invention will be described in detail later.

The alarm unit 153 outputs a signal for notifying occurrence of an event of the mobile terminal 100. Examples of events occurring in the mobile terminal include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying occurrence of an event in a form other than a video signal or an audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152, so that they 151 and 152 may be classified as part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. Vibration is a representative example of the haptic effect generated by the haptic module 154. The intensity and pattern of vibration generated by the haptic module 154 can be controlled. For example, different vibrations may be synthesized and output or may be sequentially output.

In addition to vibration, the haptic module 154 may be configured to provide a pin array that vertically moves with respect to the contact skin surface, a jetting force or suction force of air through the jetting or suction port, grazing to the skin surface, contact of the electrode, electrostatic force, and the like. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

The haptic module 154 may not only deliver the haptic effect through direct contact, but also may implement the user to feel the haptic effect through a muscle sense such as a finger or an arm. Two or more haptic modules 154 may be provided according to a configuration aspect of the mobile terminal 100.

The memory 160 may store a program for the operation of the controller 180 and may temporarily store input / output data (for example, a phone book, a message, a still image, a video, etc.). The memory 160 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), RAM (Random Access Memory, RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), Magnetic Memory, Magnetic It may include a storage medium of at least one type of disk, optical disk. The mobile terminal 100 may operate in connection with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device, receives power, transfers the power to each component inside the mobile terminal 100, or transmits data inside the mobile terminal 100 to an external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip that stores various types of information for authenticating the usage rights of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identify module (SIM), and a universal user authentication module ( Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit 170 serves as a passage through which power from the cradle is supplied to the mobile terminal 100, or various command signals input from the cradle by a user. May be a passage that is delivered to the mobile terminal. Various command signals or power input from the cradle may be operated as signals for recognizing that the mobile terminal is correctly mounted on the cradle.

The control unit 180 typically controls the overall operation of the mobile terminal. For example, perform related control and processing for voice calls, data communications, video calls, and the like. In addition, the control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the controller 180 or may be implemented separately from the controller 180.

The controller 180 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on a touch screen as text and an image, respectively.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

2 is a front perspective view of an example of a mobile terminal or a mobile terminal according to the present invention;

The disclosed portable terminal 100 has a terminal body 101 in the form of a bar. However, the present invention is not limited thereto, and is applicable to various structures such as a bar type consisting of only one body, or a slide type, a folder type, a swing type, a swivel type in which two or more bodies are coupled to be relatively movable. It is possible.

The terminal body 101 includes a case (casing, housing, cover, etc.) forming an external appearance. In this embodiment, the case may be divided into a front case 102 and a rear case 104. Various electronic components are built in the space formed between the front case 102 and the rear case 104. At least one intermediate case may be further disposed 103 between the front case 102 and the rear case 104.

The cases may be formed by injecting synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the receiver 200, the camera 121, the first user input unit 131, the microphone 122, and the interface 170 may be disposed in the terminal body, mainly the front case 102.

The display unit 151 occupies most of the front surface of the front case 102. A sound output unit 151 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132, the interface 170, and the like may be disposed on side surfaces of the front case 102 and the rear case 104.

The user input unit is configured to receive a command for controlling the operation of the mobile terminal 100. In FIG. 2, the first user input unit 131 disposed on the front of the terminal body 101 and the first unit disposed on the side surface of the mobile terminal 100 are provided. 2, the user input unit 132 is started. The first and second user inputs 131 and 132 may also be collectively referred to as manipulating portions, and may be employed in any manner as long as the user is tactile in a tactile manner.

The contents input by the first or second user input units 131 and 132 may be variously set. For example, the first user input unit 131 receives a command such as start, end, scroll, and the like, and the second user input unit 132 adjusts the volume of the sound output from the sound output unit 152 or displays 151. Command), such as switching to the touch recognition mode.

The receiver 200 is configured to output call sounds, various system notification sounds, or multimedia playback sounds. In particular, in accordance with the present invention, the receiver 200 transmits sound in a bone conduction manner, and the vibration output through the receiver 200 in the state in which the receiver 200 contacts the human body is directly in the ear by the human body. It is configured to reach the auditory nerve.

3 is a rear perspective view of the portable terminal shown in FIG. 2.

Referring to FIG. 3, a second camera 125 may be additionally mounted on the rear surface of the terminal body 101. The second camera 125 may be a camera having a photographing direction substantially opposite to that of the first camera 121 disposed on the front surface of the terminal body 101 and having different pixels from the first camera 121.

For example, the first camera 121 has a low pixel so that the user's face is photographed and transmitted to the counterpart in case of a video call, and the second camera 125 photographs a general subject and does not transmit it immediately. In many cases, it is desirable to have a high pixel. These cameras 121 and 125 may be installed in the terminal body in a rotatable or pop-up manner.

The flash 127 and the mirror 126 are further disposed adjacent to the second camera 125. The flash 127 shines light toward the subject when the subject is photographed by the camera 125. The mirror 126 allows the user to see his / her own face or the like when he / she wants to photograph himself (self-photographing) using the camera 125.

The speaker device 156 may be further disposed on the rear surface of the terminal body 101. The speaker device 156 may implement a stereo function together with the receiver device 200 disposed on the front of the terminal body 101, and may be used to implement a speakerphone mode during a call.

The antenna body 116 for receiving a broadcast signal may be additionally disposed on the side of the terminal body 101. The antenna 116 constituting a part of the broadcast receiving module 111 may be installed to be pulled out of the terminal body.

The terminal body 101 is equipped with a power supply unit 190 for supplying power to the portable terminal 100. The power supply unit 190 may be embedded in the terminal body or may be directly detachable from the outside of the terminal body.

Figure 4 is a plan view of the receiver module 200 related to the present invention, Figure 5 is a schematic separated perspective view of the contact plate, the multi-stage vibrating body and the actuator, Figure 6 is a schematic cross-sectional view of the receiver module.

As shown in these figures, the receiver module 200 includes a contact plate 210 which is a part in contact with the human body, a multistage vibrating body 220 and a multistage vibrating body 220 that provide vibration to the contact plate 210. Actuator 230 to control the vibration.

The contact plates 210 are arranged in different areas which are divided, and a plurality of contact plates 210 are provided. For convenience, the plurality of contact plates will be described as the first contact plate 211, the second contact plate 212, and the third contact plate 213 from the outermost side. The number of contact plates discloses three in FIGS. 4 to 6. However, the number of contact plates can also consist of two or four or more.

The plurality of contact plates 210 transmit the respective vibrations provided by the multi-stage vibrator 220 to the human body in a contacted state. The plurality of contact plates 210 may be concentric in terms of arrangement. The concentric array of the contact plate 210 can be formed in relation to the planar appearance of the multi-stage vibrating body 220 therein. For example, when the planar shape of the multistage vibrator 220 is a concentric array, the contact plate 210 may also form a concentric array, and the planar shape of the multistage vibrator 220 resembles a shape that gradually increases or decreases in size. In the case, the planar shape of the contact plate may also be formed in a shape similar to that of each contact plate 210.

In terms of shape, each contact plate 210 may be formed in the shape of a circle, oval or polygon, or may have a shape designed for an irregular shape or a decoration effect. The contact plate 210 may be implemented by a material capable of transmitting vibration to a human body, such as ceramic or metal.

Soft materials (eg, rubber, plastics, etc.) may be disposed in the gaps between the contact plates 210. The soft material 280 allows the vibration of any one contact plate 210 to be implemented independently of the vibration of the other contact plate 210. The soft material 280 may be formed in a translucent or semi-transparent form. In addition, the soft material 280 may be decorated in some cases, and may be implemented in the form of direct light or indirect light to implement the lighting effect.

The multi-stage vibrator 220 includes a plurality of vibrators 221, 222, and 223 corresponding to each contact plate 210. As an example, the multi-stage vibrator 220 may be formed in a form in which the vibrators 221, 222, and 223 having a coil or ring shape are connected by the connection member 240. The vibrators 221, 222, 223 and the connecting member 240 may be formed in a spring-like shape by a rigid body (eg, a metal) having elasticity. The shape of the connection member 240 may be formed to extend in the radial direction, or may be formed to extend in a spiral form as shown in FIG.

The plurality of vibrators 221, 222, and 223 correspond to the plurality of divided contact plates 210, respectively. That is, any one vibrator 221, 222, 223 applies vibration to the corresponding contact plate 210 among the plurality of contact plates 210.

The plurality of vibrators 221, 222, and 223 may be formed to have different moving distances. To this end, the second and third vibrators 222 and 223 disposed inside the first vibrator 221 may be disposed at a lower position. That is, the distance moved to vibrate the first contact plate 211 to which the first vibrator 221 corresponds is d1, and the second contact plate 212 to which the second vibrator 222 disposed inside corresponds. When the distance moved to vibrate is d2 and the distance moved to vibrate the third contact plate 213 corresponding to the third vibrator 223 disposed inward is d3, a relationship of d1 <d2 <d3 Is established.

Thus, the contact plates are arranged separately from each other, and as a result of differently arranged vibrators for vibrating each contact plate, the vibration of the contact plates can be individually controlled in accordance with the frequency. That is, since the moving distance d1 of the first vibrator 221 is short, a high frequency frequency can be expressed, and since the moving distance d3 of the third vibrator 223 is long, a low frequency frequency can be expressed. As such an example, the first vibrator 221 disposed closest to the contact plates has a high frequency band (H band, for example, 1500 Hz or more), so that the second vibrator 222 has a middle frequency band (M band). , For example, 500 to 1500 Hz), the third oscillator 223 may be set to implement a low frequency band (L band, for example, 50 to 500 Hz). If the high frequency band is output, only the first vibrator 221 impacts the first contact plate 211 by the corresponding frequency to generate high sound vibration, and when outputting the mid frequency band, not only the first vibrator 221. When the second vibrator 222 is moved to impact the second contact plate 212 by the corresponding frequency to generate a middle tone vibration, and when outputting a low frequency band, the third vibrator 223 is also moved to move the third contact plate ( 213) by the corresponding frequency to generate a low sound vibration.

Since each vibrator has a constant mass (inertia) and modulus of elasticity, by controlling their movement, only the specific vibrator in a specific band among the first vibrator 221 to the third vibrator 223 vibrates the corresponding contact plate. To make it work. Therefore, the mass of these vibrators 221, 222, 223 and the modulus of elasticity of the vibrators 221, 222, 223 and the connection member 240 may be adjusted. Furthermore, the size or spacing of the vibrators 221, 222, 223 may also be adjusted to implement sound in all bands.

A shaft 250 that guides the multi-stage vibrator may be provided at the center of the multi-stage vibrator 220. The multistage vibrator 220 may be installed in a form surrounded by the bracket 270 to provide a vibration space of the multistage vibrator 220.

A guide 260 for guiding the vibrators 221, 222, and 223 may be disposed between the vibrators 221, 222, and 223 constituting the multi-stage vibrator 220. The guide 260 prevents each of the vibrators 221, 222, and 223 from tilting in a specific direction due to the vibration, and enables accurate frequency control.

The actuator 230 may be implemented by a linear motor or the like. Shaft 250 or guide 260 may be an extended portion of actuator 230. In addition, by providing the electromagnetic force for moving the multi-stage vibrator 220 individually, it is possible to increase the accuracy of the control.

7 to 9 are views showing the operating state of the receiver device according to the present invention, Figure 7 is that only the first contact plate vibrates by the first vibrator in the high-frequency band, Figure 8 is a second vibrator in the middle band The second contact plate also vibrates together, and FIG. 9 shows that the third contact plate also vibrates together by the third vibrator in the high and low band.

Since the vibrations of the first vibrator 221 to the third vibrator 223 are oscillated in a superimposed manner, fine frequencies can be adjusted using this.

10 is a cross-sectional view of a receiver module 200 ′ showing another example related to the present invention. As shown in FIG. 10, each vibrator constituting the multi-stage vibrating body may be arranged as opposed to the foregoing. That is, in the present embodiment, the vibrators 221, 222, and 223 are arranged so that the relationship of d1> d2> d3 is established.

The receiver module and the portable terminal having the same are not limited to the configuration and method of the embodiments described above, but the embodiments are configured by selectively combining all or some of the embodiments so that various modifications can be made. May be

Claims (16)

A plurality of contact plates disposed in different areas that are divided;
A plurality of vibrators corresponding to the respective contact plates, wherein each vibrator is configured to vibrate the contact plates specified among the plurality of contact plates according to a frequency band in stages; And
Receiver module including an actuator that can be formed to generate the vibration of the multi-stage vibrating body. The method of claim 1,
The plurality of contact plates are arranged to form a concentric image, each contact plate is a receiver module, characterized in that formed in the form of a circle, ellipse or polygon. The method of claim 2,
And each vibrator constituting the multi-stage vibrating body is configured to move a relatively different distance with respect to the corresponding contact plates. The method of claim 3,
And a moving distance between each of the vibrators forming the multi-stage vibrating body and the contact plate corresponding to the multi-stage vibrating body is formed such that the distance toward the center thereof increases. The method of claim 3,
Each oscillator constituting the multi-stage vibrating body is formed in a ring shape. The method of claim 5,
Receiver module, characterized in that each vibrator is connected by a connecting member. The method of claim 4, wherein
The outermost vibrator of the multi-stage vibrator is configured to vibrate the contact plate corresponding at the highest frequency, and the vibrators disposed inside the outermost vibrator sequentially correspond to the respective contact plates at the low frequency. Receiver module, characterized in that configured to vibrate. The method of claim 5,
Receiver module, characterized in that the central side of the multi-stage vibrating body is further provided with a shaft for guiding the multi-stage vibrating body. The method of claim 5,
And a guide for guiding the vibrators between the vibrators constituting the multi-stage vibrator. The method of claim 1,
Receiver module, characterized in that the soft material is disposed between the plurality of contact plates. The method of claim 1,
The multi-stage vibrating body is a receiver module, characterized in that implemented by a rigid (rigid) elastically deformable (rigid). The method of claim 1,
The actuator module, characterized in that implemented by a linear motor. The method of claim 3,
Each of the oscillators constituting the contact plate and the multi-stage vibrating body is composed of three, each of the receiver module, characterized in that configured to correspond to the high, mid and low bands, respectively. The method of claim 3,
Each oscillator constituting the multi-stage vibrating body is formed so as to have a different thickness or material. Terminal body; And
A receiver module disposed on the terminal body, wherein the receiver module comprises:
A plurality of contact plates disposed in different areas that are divided;
A plurality of vibrators corresponding to the respective contact plates, wherein each vibrator is configured to vibrate the contact plates specified among the plurality of contact plates according to a frequency band in stages; And
And a actuator formed to generate vibration of the multi-stage vibrating body. Terminal body;
A speaker module disposed in the terminal body; And
And a receiver module disposed separately from the speaker module on the terminal body, wherein the receiver module includes:
A plurality of contact plates disposed in different areas that are divided;
A plurality of vibrators corresponding to the respective contact plates, wherein each vibrator is configured to vibrate the contact plates specified among the plurality of contact plates according to a frequency band in stages; And
And a actuator formed to generate vibration of the multi-stage vibrating body.

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