CN205510154U - Mobile terminal - Google Patents

Abstract

The utility model discloses a mobile terminal, including wooden sound chamber, wooden sound intracavity portion is equipped with the speaker, the speaker is connected with printed circuit board. The utility model discloses wooden sound chamber has been disposed for the speaker in mobile terminal. Because the effect of the absorption sound wave of wooden material is better than plastics and metal for sound wave propagation reflects the diffraction ripples composition that in the cavity reduces, and then improves the tone quality of the external broadcast of mobile terminal. Through verifying, compare plastic materials, the design in wooden sound chamber makes the speaker have better sensitivity performance, in the aspect of tone quality, the tone quality in the aspect of the well low frequency is full mellow, the high frequency is clear penetrating, and the stereovision is strong, no matter listens a pop or a rock music, all has the performance of nice tone quality, brings that the user is comfortable to listen to experience.

Description

a mobile terminal

technical field

The embodiment of the utility model relates to mobile electronic device technology, in particular to a mobile terminal.

Background technique

With the development of electronic equipment, users have higher and higher requirements on the sound quality of mobile terminals such as mobile phones.

At present, the sound cavity of a speaker of a mobile terminal such as a mobile phone is usually made of plastic material or a combination of plastic material and stainless steel material.

However, the plastic material or the material combined with plastic and stainless steel tends to resonate with the sound waves output by the speaker when the speaker is playing audio, which is likely to generate noise and the playback sound quality is poor.

Utility model content

The utility model provides a mobile terminal to realize the effect of improving the sound quality played by the mobile terminal.

The embodiment of the utility model provides a mobile terminal, which includes a wooden sound cavity, a speaker is arranged inside the wooden sound cavity, and the speaker is connected to a printed circuit board.

Further, the wooden sound cavity is fixed on the printed circuit board.

Further, the wooden sound chamber cooperates with the clamping end of the shrapnel on the printed circuit board, and the other end of the shrapnel is fixed on the printed circuit board;

Alternatively, the wooden sound cavity is screwed on the printed circuit board by screws;

Alternatively, the wooden sound chamber is soldered to the printed circuit board with the speaker pins.

Further, the shell of the mobile terminal is provided with a sound outlet, and the sound outlet of the sound cavity is set corresponding to the sound hole on the shell.

Further, on the side of the housing of the mobile terminal close to the wooden sound chamber, a sealing tape is provided at a position between the sound outlet corresponding to the wooden sound chamber and the sound outlet on the housing.

Further, the sealing tape is made of foam or rubber.

Further, the casing of the mobile terminal is made of wood or bamboo.

Further, the wall thickness of the wooden sound cavity is 1.0-3.0mm.

Further, the thickness of the side wall of the wooden sound cavity is 2.0mm.

Further, the material of the wooden sound cavity is wooden material or bamboo material.

The utility model configures a wooden sound cavity for a speaker on a printed circuit board in a mobile terminal. Since the sound wave absorption effect of the wood material is better than that of plastic and metal, the diffraction wave components reflected by the sound wave transmission in the cavity are reduced, thereby improving the sound quality of the mobile terminal for external playback. It has been verified that compared with plastic materials, the design of the wooden sound cavity makes the speaker have better sensitivity performance; in terms of sound quality, the sound quality of the middle and low frequencies is full and mellow; the high frequency is clear and transparent, with a strong sense of hierarchy, whether listening to pop music or Rock music, all have good sound quality performance, bringing users a comfortable listening experience.

Description of drawings

FIG. 1 is a schematic structural diagram of a mobile terminal in Embodiment 1 of the present invention;

Fig. 2 is a structural schematic diagram of the shrapnel fixing method of the wooden sound chamber in Embodiment 1 of the present invention;

Fig. 3 is a structural schematic diagram of the screw fixing method of the wooden sound chamber in Embodiment 1 of the present utility model;

Fig. 4 is a schematic structural view of the pin fixing method of the wooden sound cavity in Embodiment 1 of the present invention;

Fig. 5 is a schematic diagram of the location of a shell sound hole in Embodiment 1 of the present utility model;

Fig. 6 is a schematic diagram of the position of another shell sound outlet in the first embodiment of the present invention;

7 is a schematic structural diagram of a mobile terminal configured with a sealing tape in Embodiment 1 of the present invention;

FIG. 8 is a schematic diagram of the modules of the mobile terminal in Embodiment 2 of the present invention.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail. It can be understood that the specific embodiments described here are only used to explain the utility model, rather than limit the utility model. In addition, it should be noted that, for the convenience of description, only some structures related to the present utility model are shown in the drawings but not all structures.

Embodiment one

FIG. 1 is a schematic structural diagram of a mobile terminal provided by Embodiment 1 of the present invention, which includes a wooden sound cavity 1 , and a speaker 2 is arranged inside the wooden sound cavity 1 , and the speaker 2 is connected to a printed circuit board 3 .

The mobile terminal can be a smart phone, a non-smart phone, a tablet computer, a notebook computer, or a smart wearable device (such as a smart watch, smart glasses) and the like. Preferably, the mobile terminal is a smart phone. As shown in Figure 1, a printed circuit board 3 (Printed Circuit Board, PCB main board) in the mobile terminal is embedded with a display screen 4 on one side, and a battery 5 and a wooden sound cavity 1 are embedded on the other side, and a speaker is arranged in the wooden sound cavity 1 2. The sound outlet 1-1 above the wooden sound cavity 1 corresponds to the sound outlet 6-1 on the mobile terminal shell 6. The display screen 4 can be a touch screen. The battery may be a lithium battery.

The shape and size of the wooden sound chamber 1 can be adaptively adjusted according to the design requirements of the internal structure of the mobile device. When the speaker 2 is working, the sound waves output by the speaker 2 are reflected by the wooden sound cavity 1 and transmitted from the sound outlet 1-1 of the wooden sound cavity 1 to the outside of the wooden sound cavity 1 .

Further, the wooden sound cavity 1 is fixed on the printed circuit board 3 .

Specifically, the wooden sound cavity 1 can be fixed on the printed circuit board by any of the following fixing methods:

Method 1: As shown in Figure 2, the wooden sound cavity 1 is matched with the clamping end of the elastic piece 3-1 on the printed circuit board 3, and the other end of the elastic piece 3-1 is fixed on the printed circuit board 3. on circuit board 3.

A plurality of elastic pieces 3-1 are arranged on the printed circuit board, one end of each elastic piece 3-1 is a fixed end, and the other end is a locking end. The fixed end is fixed on the printed circuit board 3 . A locking part is provided on the locking end, and when the wooden sound cavity 1 moves from the locking end to the fixed end, the outer wall of the wooden sound cavity 1 is fixed by the locking part and the shrapnel 3-1. The locking part can be a groove, which cooperates with the protruding part on the outer wall of the wooden sound chamber 1 to realize fixing. After the protruding part on the outer wall of the wooden sound cavity 1 is embedded in the groove, it is fastened by the elastic force of the shrapnel 3-1.

The installation method of the shrapnel 3-1 provided by the first method can realize the installation of the wooden sound cavity 1 relatively quickly and improve the installation efficiency.

Method 2: As shown in FIG. 3 , the wooden sound cavity 1 is screwed to the printed circuit board 3 by screws.

The outer wall (bottom surface) of the wooden sound chamber 1 and the printed circuit board 3 is provided with a first threaded hole, and the first screw 7 is inserted into the first threaded hole after passing through the second threaded hole on the printed circuit board 3 Fix the wooden sound cavity 1 on the printed circuit board 3. Wherein, the screws can be replaced by bolts.

It should be noted that the first threaded hole, the first screw 7 and the second threaded hole form a set of fixing parts, which can be fixed by one or more sets of fixing parts.

The screw installation method provided by the second method can make the wooden sound cavity 1 be more firmly fixed on the printed circuit board 3 .

Mode 3: As shown in FIG. 4 , the wooden sound cavity 1 is welded on the printed circuit board 3 through the speaker 2 pins.

During production, the independent loudspeaker finished product can be produced first, and the independent loudspeaker finished product includes the loudspeaker 2 and its external wooden sound chamber 1; The sound cavity 1 is fixed on the printed circuit board 3 .

The pin welding method provided by the third method can realize the fixing of the wooden sound chamber 1 while fixing the speaker 2 . At the same time, it provides a production method of installing the finished product of the independent loudspeaker 2 with the wooden sound chamber 1 fixed on the periphery on the printed circuit board 3 to improve production efficiency.

It should be noted that the above three fixing methods of the wooden sound cavity 1 can be used in combination. For example, the wooden sound cavity 1 is temporarily fixed by the shrapnel 3-1, and then reinforced by screw or pin welding. For another example, the wooden sound cavity 1 is first fixed to the printed circuit board 3 by means of screws, and then the pins of the speaker 2 in the wooden sound cavity 1 are welded to corresponding pins of the printed circuit board 3 for further reinforcement.

Further, the shell 6 of the mobile terminal is provided with a sound outlet 6 - 1 , and the sound outlet 1 - 1 of the sound cavity is set corresponding to the sound hole 6 - 1 on the shell 6 . Wherein, the shape of the sound outlet 6-1 and the sound outlet 1-1 are the same, such as circle, circular ring, rectangle, rounded rectangle and the like.

Optionally, as shown in FIG. 5 , the sound outlet 6-1 on the shell 6 of the mobile terminal can be set at the bottom of the mobile phone near the USB interface. Optionally, as shown in FIG. 6, the sound outlet 6-1 on the casing 6 of the mobile terminal can also be arranged on the back of the mobile phone. The specific positions may be position one and position two shown in FIG. 6 . Wherein, position one is a position close to the camera on the back of the mobile phone, and position two is a position on the back of the mobile phone close to the side.

Further, in order to prevent sound waves from generating interfering sound waves in spaces other than the wooden sound cavity 1 inside the mobile terminal, as shown in FIG. A sealing tape 8 is provided between the sound outlet 1-1 of the wooden sound chamber 1 and the sound outlet 6-1.

Further, the material of the sealing strip 8 is foam or rubber.

The area and shape of the sealing band 8 are determined by the distance and space between the sound outlet 1 - 1 of the wooden sound cavity 1 and the sound outlet 6 - 1 of the shell 6 . The sealing tape 8 can be fixed to the mobile terminal casing 6 by pasting. The sound effect can be better improved by arranging the sealing tape 8 inside the casing 6 .

Further, the casing 6 of the mobile terminal is made of wood or bamboo.

The casing 6 can be the casing of the detachable battery 5 on the back of the smart terminal, or it can be a non-detachable casing 6 .

Further, the wall thickness of the wooden sound chamber 1 is 1.0-3.0mm (millimeter).

Further, the thickness of the side wall of the wooden sound chamber 1 is 2.0 mm.

Further, the material of the wooden sound cavity 1 is wood material or bamboo material.

The material selected for the wooden sound chamber 1 is high-density fiberboard, logs or bamboo with uniform density and low resonance point. For example: rosewood, silver fir, sycamore, bamboo and so on.

The utility model configures a wooden sound chamber 1 for a loudspeaker 2 in a mobile terminal. Since the sound wave absorption effect of the wood material is better than that of plastic and metal, the diffraction wave components reflected by the sound wave transmission in the cavity are reduced, thereby improving the sound quality of the mobile terminal for external playback. It has been verified that compared with plastic materials, the design of the wooden sound cavity 1 makes the speaker 2 have better sensitivity performance; in terms of sound quality, the sound quality in the middle and low frequencies is full and mellow; Music or rock music, all have good sound quality performance, bringing users a comfortable listening experience.

Embodiment two

FIG. 8 is a schematic diagram of modules of a mobile terminal provided by Embodiment 2 of the present invention. The mobile terminal may include a communication unit 21, a memory 22 including at least one computer-readable storage medium, an input unit 23, a display unit 24, a sensor 25, an audio circuit 26, a WIFI (Wireless Fidelity, wireless fidelity) module 27, including A processor 28 of at least one processing core, a power supply 29 and other components. Those skilled in the art can understand that the structure of the mobile terminal shown in the figure does not constitute a limitation on the mobile terminal, and may include more or less components than those shown in the figure, or combine certain components, or arrange different components. specific:

The communication unit 21 can be used for sending and receiving information or receiving and sending signals during a call. The communication unit 21 can be an RF (Radio Frequency, radio frequency) circuit, a router, a modem, and other network communication equipment. In particular, when the communication unit 21 is an RF circuit, after receiving the downlink information of the base station, it is processed by one or more processors 28; in addition, the uplink data is sent to the base station. Typically, an RF circuit as a communication unit includes, but is not limited to, an antenna, at least one amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, an LNA (Low Noise Amplifier, Low noise amplifier), duplexer, etc. In addition, the communication unit 21 can also communicate with a network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication, Global System for Mobile Communication), GPRS (General Packet Radio Service, general packet radio service), CDMA (Code Division Multiple Access , Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access), LTE (Long Term Evolution, long-term evolution), email, SMS (Short Messaging Service, short message service), etc. The memory 22 can be used to store software programs and modules, and the processor 28 executes various functional applications and data processing by running the software programs and modules stored in the memory 22 . The memory 22 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playback function, an image playback function, etc.) etc.; Data created by the use of mobile terminals (such as audio data, phonebook, etc.) and the like. In addition, the memory 22 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices. Correspondingly, the memory 22 may further include a memory controller to provide access to the memory 22 by the processor 28 and the input unit 23 .

The input unit 23 can be used to receive input numbers or character information, and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control. Preferably, the input unit 23 may include a touch-sensitive surface 231 and other input devices 232 . The touch-sensitive surface 231, also referred to as a touch screen or a touchpad, can collect user touch operations on or near it (for example, the user uses any suitable object or accessory such as a finger, a stylus, etc. on the touch-sensitive surface 231 or on the The operation near the touch-sensitive surface 231), and drive the corresponding connection device according to the preset program. Optionally, the touch-sensitive surface 231 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and sends it to the to the processor 28, and can receive and execute commands sent by the processor 28. In addition, the touch-sensitive surface 231 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch-sensitive surface 231 , the input unit 23 may also include other input devices 232 . Preferably, other input devices 232 may include, but are not limited to, one or more of physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, joysticks, and the like.

The display unit 24 can be used to display information input by the user or provided to the user and various graphical user interfaces of the mobile terminal. These graphical user interfaces can be composed of graphics, text, icons, videos and any combination thereof. The display unit 24 may include a display panel 241. Optionally, the display panel 241 may be configured in the form of LCD (Liquid Crystal Display, liquid crystal display), OLED (Organic Light-Emitting Diode, organic light-emitting diode), and the like. Further, the touch-sensitive surface 231 may cover the display panel 241. When the touch-sensitive surface 231 detects a touch operation on or near it, it is sent to the processor 28 to determine the type of the touch event, and then the processor 28 determines the type of the touch event according to the touch operation. The type provides a corresponding visual output on the display panel 241 . Although in FIG. 8, the touch-sensitive surface 231 and the display panel 241 are used as two independent components to realize input and input functions, in some embodiments, the touch-sensitive surface 231 and the display panel 241 can be integrated to realize input. and output functions.

The mobile terminal may also include at least one sensor 25, such as a light sensor, a motion sensor, and other sensors. The light sensor can include an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 241 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 241 and/or the backlight when the mobile terminal moves to the ear . As a kind of motion sensor, the gravitational acceleration sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used for applications that recognize the attitude of mobile phones (such as horizontal and vertical screen switching, related Games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. repeat.

The audio circuit 26, the speaker 261, and the microphone 262 can provide an audio interface between the user and the mobile terminal. Audio circuit 26 can transmit the electric signal after the audio data conversion that receives to loudspeaker 261, is converted into sound signal output by loudspeaker 261; After being received, it is converted into audio data, and then the audio data is processed by the output processor 28, and then sent to another mobile terminal through the RF circuit 21, or the audio data is output to the memory 22 for further processing. The audio circuit 26 may also include an earphone jack to provide communication between an external earphone and the mobile terminal.

In order to realize wireless communication, the first mobile terminal may be configured with a wireless communication unit 27, and the wireless communication unit 27 may be a WIFI module. WIFI belongs to the short-distance wireless transmission technology. Through the wireless communication unit 27, the mobile terminal can help users send and receive emails, browse web pages and access streaming media, etc., and it provides users with wireless broadband Internet access. Although the wireless communication unit 27 is shown in the figure, it can be understood that it is not an essential component of the mobile terminal, and can be completely omitted as required without changing the essence of the disclosure.

Processor 28 can utilize various interfaces and lines to connect various parts of the whole mobile phone, by running or executing software programs and/or modules stored in memory 22, and calling data stored in memory 22, to execute various functions of the mobile terminal. function and process data, so as to monitor the mobile phone as a whole. Optionally, the processor 28 may include one or more processing cores; preferably, the processor 28 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc. , the modem processor mainly handles wireless communications. It can be understood that the modem processor may not be integrated into the processor 28 .

The mobile terminal also includes a power supply 29 (such as a battery) for supplying power to various components. Preferably, the power supply can be logically connected to the processor 28 through the power management system, so as to realize functions such as managing charging, discharging, and power consumption management through the power management system. The power supply 29 may also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators and other arbitrary components.

It should be noted that the mobile terminal may also include a camera, a bluetooth module, etc., which will not be repeated here.

Note that the above are only preferred embodiments of the present invention and the applied technical principles. Those skilled in the art will understand that the utility model is not limited to the specific embodiments described here, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the utility model. Therefore, although the utility model has been described in detail through the above embodiments, the utility model is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the utility model. The scope of the present invention is determined by the appended claims.

Claims (10)

1. a mobile terminal, it is characterised in that include wooden sound chamber, described wooden sound intracavity portion is provided with raises Sound device, described speaker is connected with printed circuit board.

Mobile terminal the most according to claim 1, it is characterised in that described wooden sound chamber is fixed on institute State on printed circuit board.

Mobile terminal the most according to claim 2, it is characterised in that described wooden sound chamber and described print The screens end of the shell fragment on circuit board processed coordinates, and the other end of described shell fragment is fixed on described printed circuit board；

Or, described wooden sound chamber is screwed onto on described printed circuit board by screw；

Or, described wooden sound chamber is welded on described printed circuit board by speakers pins.

Mobile terminal the most according to claim 1, it is characterised in that on the shell of described mobile terminal Being provided with out acoustic aperture, the described outlet sound mouth in wooden sound chamber is correspondingly arranged with the acoustic aperture that goes out on described shell.

Mobile terminal the most according to claim 4, it is characterised in that the shell of described mobile terminal leans on The side in nearly described wooden sound chamber, speaking on the extremely described shell of the outlet sound mouth corresponding to described wooden sound chamber Position between hole is provided with band.

Mobile terminal the most according to claim 5, it is characterised in that the material of described band is bubble Cotton or rubber.

Mobile terminal the most according to claim 4, it is characterised in that the shell of described mobile terminal is Wooden or bamboo material.

Mobile terminal the most according to claim 1, it is characterised in that the cavity wall in described wooden sound chamber is thick Degree is 1.0-3.0mm.

Mobile terminal the most according to claim 8, it is characterised in that the side thickness in described wooden sound chamber Degree is 2.0mm.

10. according to the mobile terminal according to any one of claim 1-9, it is characterised in that described wooden The material in sound chamber is wood materials or bamboo material.