CN114584894A - Exciter, screen assembly and terminal - Google Patents
Exciter, screen assembly and terminal Download PDFInfo
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- CN114584894A CN114584894A CN202011391789.XA CN202011391789A CN114584894A CN 114584894 A CN114584894 A CN 114584894A CN 202011391789 A CN202011391789 A CN 202011391789A CN 114584894 A CN114584894 A CN 114584894A
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- screen
- assembly
- circuit board
- printed circuit
- exciter
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Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Abstract
The embodiment of the invention relates to the technical field of screen sounding, and discloses an exciter, a screen assembly and a terminal. The above-mentioned exciter comprises: the vibration transmission component and the sounding component; the first surface of the vibration transmission component is attached to the first surface of the sound production component; the vibration transmission component is positioned between the screen and the sound production component when the exciter is arranged below the screen of the terminal; the sound generating assembly is positioned above the printed circuit board of the terminal when the exciter is positioned below the screen; the thickness of the exciter is smaller than a preset thickness threshold value; the sounding assembly is used for receiving an audio signal sent by the printed circuit board, generating vibration according to the audio signal and transmitting the vibration to the vibration transmission assembly; the vibration transmission component is used for transmitting vibration to the screen. The exciter provided by the embodiment of the invention can avoid the exciter without hollowing out part of the area of the printed circuit board, does not influence the design of the printed circuit board, and simultaneously can make the vibration more stable, improve the sound production effect and improve the use experience of users.
Description
Technical Field
The embodiment of the application relates to the technical field of screen sounding, in particular to an exciter, a screen assembly and a terminal.
Background
The exciter is a harmonic sounder, which is a sounding device for modifying and beautifying sound signals by using the psychoacoustic characteristics of human beings. The exciter selects the frequency band in the audio signal and then sends the audio signal into the harmonic generator to produce the high-frequency harmonic of the frequency, and the high-frequency harmonic is added into the original audio signal to strengthen the harmonic component in the frequency modulation area in the original audio signal, thereby improving the structure of overtone.
With the advent of the full screen era, screen sound production technologies and off-screen exciters (i.e. exciters located below the screen of a full screen terminal) have become popular new sound production technical solutions in order to achieve 100% of full screen occupation. The screen driver drives the screen and other structures in front of the screen, and the screen is used as a vibration body, and sound waves are generated by vibration and then transmitted to human ears.
However, in order to achieve good generation, the exciter is generally located at the middle position below the screen, i.e. the exciter is placed at the middle position of a Printed Circuit Board (PCB), and the PCB needs to be hollowed out of a part of the area to avoid the exciter, which causes great trouble to the layout of the PCB.
Disclosure of Invention
The main aim at of this application embodiment provides an exciter, screen assembly and terminal, can need not to excavate printed circuit board subregion and dodge the exciter, does not influence printed circuit board's design, can make vibrations more steady simultaneously, improves the sound production effect, improves user's use and experiences.
To achieve the above object, an embodiment of the present application provides an exciter, including: the vibration transmission component and the sounding component; the first surface of the vibration transmission assembly is attached to the first surface of the sound production assembly; the vibration transmission assembly is positioned between the screen and the sound production assembly when the exciter is arranged below the screen of the terminal; the sound emitting assembly is positioned above a printed circuit board of the terminal when the exciter is positioned below the screen; the thickness of the exciter is smaller than a preset thickness threshold value; the sounding assembly is used for receiving an audio signal sent by the printed circuit board, generating vibration according to the audio signal and transmitting the vibration to the vibration transmission assembly; the vibration transmission component is used for transmitting the vibration to the screen.
To achieve the above object, the present invention also provides a screen assembly including an actuator and a screen.
In order to achieve the above object, an embodiment of the present application further provides a terminal, where the terminal includes: the screen assembly comprises a screen assembly, a middle shell, a printed circuit board and a rear shell; the screen assembly is assembled on the front surface of the middle shell, and the printed circuit board is positioned between the middle shell and the rear shell and assembled on the back surface of the middle shell; the screen assembly is characterized in that a sound production assembly of the screen assembly is embedded in the groove of the middle shell, and the sound production assembly is located above the printed circuit board and connected with the printed circuit board.
The utility model provides an exciter, screen subassembly and terminal, including vibrations transmission subassembly and sound production subassembly, the sound production subassembly is used for receiving the audio signal that printed circuit board sent, produces vibrations according to audio signal, and will vibrations transmit the subassembly for vibrations, and vibrations transmission subassembly will vibrate the transmission again and transmit for the screen, produces vibrations sound wave, spreads into the people's ear into, vibrations transmission subassembly can transmit vibrations evenly, steadily, improves vibrations sound production effect. The first surface of the vibration transmission assembly is attached to the first surface of the sound production assembly; the vibration transmission assembly is positioned between the screen and the sound production assembly when the exciter is arranged below the screen of the terminal; the sound emitting assembly is positioned above a printed circuit board of the terminal when the exciter is positioned below the screen; the thickness of the actuator is less than a predetermined thickness threshold. Considering that the traditional exciter is large in thickness and generally arranged below a screen, namely in the middle of a printed circuit board, the printed circuit board needs to be hollowed out to partially avoid the exciter, and therefore great troubles are caused to the layout and wiring of the printed circuit board.
Drawings
Fig. 1 is a top view of an actuator according to a first embodiment of the invention;
fig. 2 is a front view of an actuator according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram of an actuator application scenario provided in accordance with a first embodiment of the present invention;
FIG. 4 is a top view of an actuator according to a second embodiment of the invention;
fig. 5 is a front view of an actuator according to a second embodiment of the invention;
FIG. 6 is a schematic diagram of a conventional exciter application scenario;
fig. 7 is a schematic structural view of a screen assembly according to a third embodiment of the present invention;
FIG. 8 is a schematic diagram of an internal layout of a screen assembly according to a third embodiment of the present invention;
FIG. 9 is a schematic illustration of an internal layout of yet another screen assembly provided in accordance with a third embodiment of the present invention;
fig. 10 is a schematic structural view of a screen assembly according to a fourth embodiment of the present invention;
fig. 11 is a schematic configuration diagram of a terminal according to a fifth embodiment of the present invention;
fig. 12 is a schematic structural diagram of a terminal according to a sixth embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in the examples of the present application, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present application, and the embodiments may be mutually incorporated and referred to without contradiction.
In a specific implementation, the exciter of the embodiment of the invention can be applied to terminals with an audio playing function, such as mobile phones, tablet computers, notebook computers, billboards, and the like, and is arranged below a screen. The top view of the actuator of this embodiment may be as shown in fig. 1, and the front view may be as shown in fig. 2, and the actuator 11 of this embodiment includes:
a sound emitting component 111 and a vibration transmission component 112. Wherein, the first surface of the vibration transmission component 112 is attached to the first surface of the sound emitting component 111.
The sound generating component 111 is used for receiving an audio signal, generating vibration according to the audio signal and transmitting the vibration to the vibration transmitting component 112;
the vibration transmission assembly 112 is used to transmit vibrations to the screen.
For convenience of description, the exciter according to the first embodiment of the present invention is described below with reference to a specific application scenario, where the specific application scenario of the exciter according to this embodiment may be as shown in fig. 3, and fig. 3 is a side view of the exciter disposed below a screen of a terminal, and specifically includes:
exciter 11, screen 12 and printed circuit board 13. The exciter 11 comprises a sound production assembly 111 and a vibration transmission assembly 112, a first surface of the vibration transmission assembly 112 is attached to the first surface of the sound production assembly 111, the exciter 11 is located between the screen 12 of the terminal and the printed circuit board 13 of the terminal, the specific position is below the screen 12 of the terminal, the vibration transmission assembly 112 is located between the screen 12 and the sound production assembly 111, the sound production assembly 111 is located above the printed circuit board 13 of the terminal, and the thickness of the exciter 11 is smaller than a preset thickness threshold value.
Specifically, the preset thickness threshold may be set by a person skilled in the art according to a distance between a screen of the terminal and a printed circuit board of the terminal, and it is intended that a thinner actuator may be disposed between the screen and the printed circuit board.
The sound production assembly 111 is used for receiving an audio signal sent by the printed circuit board 13, generating vibration according to the audio signal and transmitting the vibration to the vibration transmission assembly 112;
specifically, the printed circuit board 13 transmits an audio signal to the sound emitting assembly 111, and the sound emitting assembly 111 may generate vibration according to the audio signal and transmit the vibration to the vibration transmitting assembly 112.
In a specific implementation, the sound generating assembly 111 is located above the printed circuit board 13 of the terminal and connected to the printed circuit board 13, the printed circuit board 13 may analyze an audio signal in an audio/video to be played and send the audio signal to the sound generating assembly 111, and after receiving the audio signal, the sound generating assembly 111 may generate a vibration according to a frequency of the audio signal and transmit the vibration to the vibration transmitting assembly 112. The audio signal may be an ac audio signal, which is not limited in this embodiment of the present invention. The sound emitting assembly 111 is located above the printed circuit board 13 of the terminal without hollowing out the printed circuit board from the exciter and without affecting the design of the printed circuit board.
In one example, the audio and video to be played is a segment of white noise, the white noise is an alternating current audio signal, the printed circuit board analyzes the alternating current audio signal and sends the alternating current audio signal to the sounding component, the sounding component determines that the frequency of the alternating current audio signal is 80Hz after receiving the alternating current audio signal, the sounding component generates vibration with the frequency of 80Hz, and the vibration with the frequency of 80Hz is transmitted to the vibration transmission component.
The vibration transfer assembly 112 serves to transfer vibration to the screen 12 of the terminal.
Specifically, the vibration transmission component 112 may transmit the vibration to the screen 12 of the terminal after receiving the vibration transmitted from the sound emission component 111. The vibration transmission component 112 may be a copper sheet, an iron sheet, or other materials capable of transmitting vibration. The vibration transmission assembly 112 is located between the sound emitting assembly 111 and the screen 12, so that the vibration can be more smooth to obtain a good sound emitting effect.
In one example, the sound generating component generates vibration with the frequency of 80Hz, the sound generating component transmits the vibration with the frequency of 80Hz to the vibration transmission component, the vibration transmission component also performs vibration with the frequency of 80Hz, and transmits the vibration to the screen of the terminal, so that the screen also performs vibration with the frequency of 80Hz, and sound waves are generated.
In one example, the area of the first surface of the vibration transfer member 112 is equal to the area of the first surface of the sound emitting member 111, and the surface area of the first surfaces of the two members is made to be the same, so that the assembly is more convenient.
In another example, the area of the first surface of the vibration transfer member 112 may be larger than the area of the first surface of the sound emitting member 111, and since the thickness of the exciter 11 is smaller than a preset thickness threshold, i.e., smaller than the distance between the screen 12 of the terminal and the printed circuit board 13 of the terminal, the exciter 11 may be disposed between the screen 12 and the printed circuit board 13 without digging a hole in the printed circuit board to embed the exciter. In the prior art, when the driver is embedded in the hole of the printed circuit board, in order to avoid the problem that the hole digging area is too large and influence the available area on the printed circuit board, the driver cannot be used very much, in the embodiment, the thickness of the driver is thinner and can be completely arranged between the screen and the printed circuit board, and the situation that the available area on the printed circuit board is influenced by the larger size of the driver is not needed to be considered, so that the area of the vibration transmission component 112 can be used very much, the area of the vibration transmission component 112 is large, the area of the vibration transmission region is large, the vibration sounding area is large, the whole screen 12 can generate sound uniformly, the volume is uniform, a better sounding effect is obtained, and the use experience of a user can be further improved.
Such as: the area of the first surface of the sound generating component 111 is 600 square millimeters, and the area of the first surface of the vibration transmission component 112 can be 2400 square millimeters, so that the vibration area can be enlarged by 4 times, and a better sound generating effect can be obtained.
The exciter provided by the first embodiment of the invention comprises the vibration transmission assembly and the sound production assembly, wherein the sound production assembly is used for receiving an audio signal sent by the printed circuit board, generating vibration according to the audio signal and transmitting the vibration to the vibration transmission assembly, and then the vibration transmission assembly transmits the vibration to the screen to generate vibration sound waves which are transmitted to human ears. The first surface of the vibration transmission assembly is attached to the first surface of the sound production assembly; the vibration transmission assembly is positioned between the screen and the sound production assembly when the exciter is arranged below the screen of the terminal; the sound emitting assembly is positioned above a printed circuit board of the terminal when the exciter is positioned below the screen; the thickness of the actuator is less than a predetermined thickness threshold. Considering that the traditional exciter is large in thickness and is generally arranged below a screen, namely the middle position of a printed circuit board, and the printed circuit board needs to be hollowed to partially avoid the exciter, which causes great troubles to the layout and wiring of the printed circuit board.
A second embodiment of the present invention relates to an actuator, a top view of the actuator of this embodiment may be as shown in fig. 4, a front view may be as shown in fig. 5, and the actuator 21 of this embodiment specifically includes:
a piezoceramic sheet 211 and mylar sheet 212. Wherein, the first surface of the mylar film 212 is attached to the first surface of the piezoceramics sheet 211.
The piezoelectric ceramic piece 211 is used for receiving an audio signal, generating vibration according to the audio signal and transmitting the vibration to the mylar sheet 212; the second surface of the piezoelectric ceramic sheet 211 has positive and negative feeding points for distinguishing positive and negative electrodes.
Specifically, in the second embodiment of the present invention, the sound generating component uses a piezoelectric ceramic plate. The piezoelectric ceramic piece is an electronic sound component, a piezoelectric ceramic dielectric material is placed between two copper electrodes, when an alternating current audio signal is connected to the two copper electrodes, the piezoelectric ceramic dielectric between the two copper electrodes deforms along with the charging and discharging volume, so that the piezoelectric ceramic piece produces sound and vibration according to the frequency of the signal, and corresponding sound is produced. The piezoelectric ceramic piece is simple in structure, small in thickness, low in power consumption and high in sensitivity, and the sound production effect of the exciter can be further improved by using the piezoelectric ceramic piece as the sound production assembly, so that the use experience of a user is further improved.
Specifically, in the second embodiment of the present invention, the shock transmission assembly employs mylar film. The Mylar film is a film which is formed by heating dimethyl terephthalate and ethylene glycol under the assistance of related catalysts, performing ester exchange and vacuum polycondensation, and performing biaxial stretching. The Mylar film is stable in size, flat in shape, heat-resistant, cold-resistant, moisture-resistant, water-resistant and chemical corrosion-resistant, has super-strong insulating performance, uses the Mylar film as vibration transmission, can further improve the stability of vibration, thereby improving the sound production effect, and can also form certain protection to the sound production assembly.
In a specific implementation, the thickness of the piezoceramic sheet 211 is no more than 1mm, and the thickness of the mylar sheet 212 is no more than 0.1 mm. Considering that the smart terminal enters the full-screen era, in order to pursue a 100% excellent screen occupation ratio, the application of an under-screen exciter (i.e., an exciter is positioned below the screen of the terminal) is a common solution at present, but the specific application of a conventional exciter is shown in fig. 6, a conventional exciter 23 is positioned below the screen 24 of the terminal, a groove is formed by hollowing out a partial area of a printed circuit board 25, the conventional exciter 23 is embedded in the groove of the printed circuit board 25, the thickness of the conventional exciter is generally 2mm to 3mm, the thickness of the full-screen terminal (taking a full-screen mobile phone as an example) is generally 7mm to 8mm, and the partial area of the printed circuit board has to be hollowed out by using the conventional exciter to avoid the exciter. The piezoelectric ceramic piece 211 is not more than 1mm thick, the mylar piece 212 is not more than 0.1mm thick, and the whole exciter is not more than 1.1mm thick, can be completely placed between a screen of a terminal and a printed circuit board, does not need to be hollowed out of the printed circuit board, and does not affect the design of the printed circuit board.
In a particular implementation, the areas of the piezoceramic sheet 211 and mylar sheet 212 are greater than 90 square millimeters. Due to the limitation of the thickness of the traditional exciter, the area of the traditional exciter is generally not more than 90 square millimeters in order to avoid excessive hollowing of the printed circuit board, but the layout of the exciter of the embodiment of the invention does not need to hollow the printed circuit board, the area can be large, and the area of a vibration area is large, so that the vibration sounding area is larger, and the sounding effect is better.
In one example, the area of the piezoelectric ceramic plate 211 is 15 mm × 40 mm, which is 600 mm, and compared with 90 mm of a conventional exciter, the exciter according to the embodiment of the present invention only needs 15% of the vibration of the conventional exciter to achieve the same loudness, so that the power consumption of the exciter can be effectively reduced, the vibration feeling of the terminal during loudspeaking can be reduced, and the user experience can be improved.
The exciter provided by the second embodiment of the invention comprises the vibration transmission component and the sound production component, wherein the sound production component is a piezoelectric ceramic piece, the piezoelectric ceramic piece is simple in structure, small in thickness, low in power consumption and high in sensitivity, and the sound production effect of the exciter can be further improved by using the piezoelectric ceramic piece as the sound production component, so that the use experience of a user is further improved. The thickness of the piezoelectric ceramic piece is not more than 1mm, the exciter can be placed between the screen of the terminal and the printed circuit board, the printed circuit board does not need to be hollowed, and the design of the printed circuit board cannot be influenced. The vibration transmission assembly is the Mylar film, and the Mylar film is stable in size, straight in shape, heat-resistant and cold-resistant, moisture-resistant and water-resistant, resistant to chemical corrosion, and has super-strong insulating property, uses the Mylar film as the vibration transmission, can further improve the stability of vibration, thereby improves the sound effect, can also form certain protection to the sound production assembly.
A third embodiment of the present invention relates to a screen assembly, as shown in fig. 7, specifically including:
an exciter 11 and a screen 12; wherein, the exciter 11 comprises a sound production component 111 and a vibration transmission component 112, a first surface of the vibration transmission component 112 is attached to a first surface of the sound production component 111, and the vibration transmission component 112 is located between the sound production component 111 and the screen 12.
The purpose of the sound emitting component 111 and the vibration transmission component 112 is described in the first embodiment, and is not described herein again.
In one example, a screen assembly of an embodiment of the present invention may be as shown in FIG. 8, with the actuator 11 located at a central position on top of the inner surface of the screen 12. In consideration of the use habit of a user on the full-screen terminal, taking a full-screen mobile phone as an example, the user is used to press the upper half part of the mobile phone close to ears and press the lower half part close to a mouth for communication when making and receiving calls, the exciter is placed in the middle of the top of the inner surface of the screen, the vibration area of the exciter can cover the upper half part of the whole mobile phone, the sound of the other party for communication can be well transmitted to the ears of the user, and the problem of small sound caused by deviation of the position of the exciter is avoided.
In another example, the area of the vibration transfer member 112 of the actuator 11 may be the same as the area of the upper half of the screen 12. The upper half part of the whole mobile phone can vibrate uniformly, and the generating effect is better.
In one example, a screen assembly according to an embodiment of the present invention may include an actuator 11 and a screen 12 as shown in fig. 9, and the area of the vibration transfer assembly 112 of the actuator 11 may be the same as the area of the screen 12. What vibrations transmission assembly's area was done is as big in the screen area, can drive whole screen vibrations through vibrations transmission assembly to obtain better vibrations and take place the effect, further promote user's use and experience.
The actuator in the screen assembly of this embodiment may be the actuator in the first embodiment, or may be the actuator in the second embodiment, so that this embodiment may be implemented in cooperation with the first embodiment and the second embodiment. The related technical details mentioned in the first embodiment and the second embodiment are still valid in this embodiment, and the technical effects achieved in the first embodiment and the second embodiment can also be achieved in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related technical details mentioned in the present embodiment can also be applied to the first embodiment and the second embodiment.
The screen assembly provided by the third embodiment of the invention comprises the exciter and the screen, wherein the exciter is positioned in the middle of the top of the inner surface of the screen, the exciter is placed in the middle of the top of the inner surface of the screen, the vibration area of the exciter can cover the top of the whole mobile phone, sound waves generated by vibration can be well transmitted to the ears of a user, and the problem of small sound caused by deviation of the position of the exciter is avoided.
A fourth embodiment of the present invention relates to a screen assembly, as shown in fig. 10, specifically including:
a first actuator 11, a second actuator 14 and a screen 12; wherein the first actuator 11 is located at a middle position of the top of the inner surface of the screen 12; the second actuator 14 is located at a middle position of the bottom of the inner surface of the screen 12.
Specifically, the screen assembly of the embodiment of the present invention, one screen is provided with two actuators, a first actuator being located at a middle position of the top of the inner surface of the screen; the second actuator is located at a middle position of a bottom portion of the inner surface of the screen. Considering that some full-screen terminals have the function of automatically switching between the positive and negative sides (for convenience of description, the top of the terminal faces upwards as the positive direction, and the bottom of the terminal faces upwards as the negative direction), the full-screen terminal can automatically switch between the positive and negative sides displayed on the screen no matter a user uses the terminal in the positive direction or the negative direction, so that the user can use the full-screen terminal normally. In this case, if the screen component is only provided with one exciter at the top of the terminal, when the user uses the terminal in the reverse direction, the sounding position of the exciter is deviated, and the sounding effect is poor.
In an example, in the screen assembly according to the embodiment of the present invention, more than two actuators may be further configured on one screen, and the arrangement of the more than two actuators may be performed by a person skilled in the art, which is not particularly limited by the embodiment of the present invention.
The actuator in the screen assembly of this embodiment may be the actuator in the first embodiment, or may be the actuator in the second embodiment, so that this embodiment may be implemented in cooperation with the first embodiment and the second embodiment. The related technical details mentioned in the first embodiment and the second embodiment are still valid in this embodiment, and the technical effects achieved in the first embodiment and the second embodiment can also be achieved in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment and the second embodiment.
A fourth embodiment of the present invention provides a screen assembly comprising a first actuator, a second actuator and a screen; wherein the first actuator is located at a middle position of a top portion of the inner surface of the screen; the second actuator is located at a middle position of a bottom portion of the inner surface of the screen. The exciters are respectively arranged at the top and the bottom of the screen, so that vibration sounding is more uniform, and vibration sounding effect is better, and use experience of a user is further improved.
A fifth embodiment of the present invention relates to a terminal, as shown in fig. 11, and specifically includes:
a screen assembly 31, a middle case 32, a printed circuit board 33, and a rear case 34; the screen assembly 31 includes an exciter 311 and a screen 312, and the exciter 311 includes a sounding assembly 3111 and a vibration transmission assembly 3112. The screen assembly 31 is mounted on the front surface of the middle case 32, the printed circuit board 33 is positioned between the middle case 32 and the rear case 34, and mounted on the rear surface of the middle case 32; the sound emitting assembly 3111 of the screen assembly 31 is fitted into the recess of the middle case 32, and the sound emitting assembly 3111 is positioned above the printed circuit board 33 and connected to the printed circuit board 33.
The middle shell 32 and the rear shell 34 together form the outer shell of the terminal.
In the specific implementation, a certain gap is left between the printed circuit board 33 and the middle shell 32 and the rear shell 34, so that the printed circuit board is prevented from being damaged due to falling of the terminal or squeezing of the shell.
A fifth embodiment of the present invention provides a terminal including a screen assembly mounted on a front surface of a middle case, a printed circuit board positioned between the middle case and the rear case and mounted on a rear surface of the middle case; the sound production subassembly of screen subassembly inlays in the recess of mesochite, and the sound production subassembly is located printed circuit board's top to be connected with printed circuit board, can make whole terminal vibrations even, effectively improve vibrations emergence effect, thereby improve user's use and experience.
The screen component in the terminal of this embodiment may be the screen component in the third embodiment, or may be the screen component in the fourth embodiment, and the exciter in the screen component may be the exciter in the first embodiment, or may be the exciter in the second embodiment, so this embodiment may be implemented in cooperation with the first to fourth embodiments. The related technical details mentioned in the first to fourth embodiments are still valid in this embodiment, and the technical effects achieved in the first to fourth embodiments can also be achieved in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first to fourth embodiments.
In addition, in order to highlight the innovative part of the present invention, the module which is not so closely related to solve the technical problem proposed by the present invention is not introduced in the embodiment, but this does not indicate that no other module exists in the embodiment.
A sixth embodiment of the present invention relates to a terminal, as shown in fig. 12, and specifically includes:
a first screen assembly 31, a second screen assembly 35, a middle case 32, a printed circuit board 33, and a rear case 34; wherein the first screen assembly 31 includes a driver 311 and a screen 312, the driver 311 includes a sounding assembly 3111 and a vibration transmitting assembly 3112, the first screen assembly 35 includes a driver 351 and a screen 352, and the driver 351 includes a sounding assembly 3511 and a vibration transmitting assembly 3512. The first screen assembly 31 is mounted on the front surface of the middle case 32, and the printed circuit board 33 is positioned between the front surfaces of the middle case 32 and the rear case 34 and mounted on the rear surface of the middle case 32; the sounding component 3111 of the screen component 31 is embedded in the groove of the middle shell 32, and the sounding component 3111 is positioned above the printed circuit board 33 and connected with the printed circuit board 33; the second screen assembly 35 is mounted on the rear surface of the rear case 34, the sounding assembly 3511 of the second screen assembly 35 is fitted into the groove of the rear case 34, and the sounding assembly 3511 of the second screen assembly 35 is positioned under the printed circuit board 33 and connected to the printed circuit board 33.
Specifically, the terminal provided by the embodiment is a full-screen terminal with double-sided screens, that is, one terminal is configured with two screen assemblies in front and at the back. Considering that some full-screen terminals with double-sided screens have the function of automatically switching front and rear screens (for convenience of description, the first screen of the terminal faces towards the front direction screen, and the second screen of the terminal is the rear direction screen), no matter a user operates the front direction screen to use the terminal or operates the rear direction screen to use the terminal, the full-screen terminals with double-sided screens can automatically switch screen display, so that the user can normally use the full-screen terminals. In this case, if the screen component is only provided with one exciter in front of the terminal towards the screen, when the user operates the rear direction screen to use the terminal, the sounding position of the exciter is deviated, and the sounding effect is poor.
A sixth embodiment of the present invention provides a terminal including a screen assembly, a middle case, a printed circuit board, and a rear case, the screen assembly including a first screen assembly and a second screen assembly; the first screen assembly is mounted on the front surface of the middle case, and the printed circuit board is positioned between the front surfaces of the middle case and the rear case and mounted on the rear surface of the middle case; the sounding component of the first screen component is embedded in the groove of the middle shell, and the sounding component of the first screen component is positioned above the printed circuit board and is connected with the printed circuit board; the second screen assembly is assembled on the back of the rear shell, the sound production assembly of the second screen assembly is embedded in the groove of the rear shell, and the sound production assembly of the second screen assembly is located below the printed circuit board and connected with the printed circuit board. The exciter is respectively arranged on the front direction screen and the rear direction screen of the terminal, so that a good sound effect can be obtained no matter a user operates the front direction screen using terminal or operates the rear direction screen using terminal, and the use experience of the user is further improved.
The screen component in the terminal of this embodiment may be the screen component in the third embodiment, or may be the screen component in the fourth embodiment, and the exciter in the screen component may be the exciter in the first embodiment, or may be the exciter in the second embodiment, so this embodiment may be implemented in cooperation with the first to fourth embodiments. The related technical details mentioned in the first to fourth embodiments are still valid in this embodiment, and the technical effects achieved in the first to fourth embodiments can also be achieved in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first to fourth embodiments.
In addition, in order to highlight the innovative part of the present invention, the module which is not so closely related to solve the technical problem proposed by the present invention is not introduced in the embodiment, but this does not indicate that no other module exists in the embodiment.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific embodiments for practicing the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. An actuator, comprising: the vibration transmission component and the sounding component;
the first surface of the vibration transmission assembly is attached to the first surface of the sound production assembly;
the vibration transmission component is positioned between the screen and the sounding component when the exciter is arranged below the screen of the terminal; the sound emitting assembly is positioned above a printed circuit board of the terminal when the exciter is positioned below the screen; the thickness of the exciter is smaller than a preset thickness threshold value;
the sounding assembly is used for receiving an audio signal sent by the printed circuit board, generating vibration according to the audio signal and transmitting the vibration to the vibration transmission assembly;
the vibration transmission component is used for transmitting the vibration to the screen.
2. The exciter of claim 1, wherein the sound emitting component is a piezoceramic wafer.
3. An actuator according to claim 2, wherein the piezoceramic wafer has a thickness of no more than 1 mm.
4. An actuator according to claim 1, wherein the shock transmitting member is mylar.
5. An actuator according to claim 1, wherein the first surface of the vibration transfer member has an area larger than that of the sound emitting member.
6. A screen assembly, comprising: an actuator and screen as claimed in any one of claims 1 to 5.
7. A screen assembly as recited in claim 6, wherein the actuator is located at a medial position on top of an inner surface of the screen.
8. A screen assembly as recited in claim 6, wherein the actuator includes a first actuator and a second actuator;
the first actuator is located at a middle position of the top of the inner surface of the screen; the second actuator is located at a middle position of a bottom of an inner surface of the screen.
9. A terminal, comprising: the screen assembly, mid-shell, printed circuit board, and rear shell of any one of claims 6-8;
the screen assembly is assembled on the front surface of the middle shell, and the printed circuit board is positioned between the middle shell and the rear shell and assembled on the back surface of the middle shell;
the screen assembly is characterized in that a sound production assembly of the screen assembly is embedded in the groove of the middle shell, and the sound production assembly is located above the printed circuit board and connected with the printed circuit board.
10. The terminal of claim 9, wherein the screen assembly comprises a first screen assembly and a second screen assembly;
the first screen assembly is mounted on the front surface of the middle case, and the printed circuit board is positioned between the front surfaces of the middle case and the rear case and mounted on the rear surface of the middle case;
the sounding component of the first screen component is embedded in the groove of the middle shell, and the sounding component of the first screen component is positioned above the printed circuit board and is connected with the printed circuit board;
the second screen assembly is assembled on the back face of the rear shell, the sounding assembly of the second screen assembly is embedded in the groove of the rear shell, and the sounding assembly of the second screen assembly is located below the printed circuit board and connected with the printed circuit board.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011391789.XA CN114584894A (en) | 2020-12-01 | 2020-12-01 | Exciter, screen assembly and terminal |
| PCT/CN2021/122869 WO2022116684A1 (en) | 2020-12-01 | 2021-10-09 | Exciter, screen assembly, and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011391789.XA CN114584894A (en) | 2020-12-01 | 2020-12-01 | Exciter, screen assembly and terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114584894A true CN114584894A (en) | 2022-06-03 |
Family
ID=81767100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011391789.XA Pending CN114584894A (en) | 2020-12-01 | 2020-12-01 | Exciter, screen assembly and terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114584894A (en) |
| WO (1) | WO2022116684A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3555505B2 (en) * | 1999-06-16 | 2004-08-18 | 株式会社村田製作所 | Speaker |
| US8053954B2 (en) * | 2006-08-10 | 2011-11-08 | Su-Pei Yang | Piezoelectric speaker |
| CN204425649U (en) * | 2015-01-26 | 2015-06-24 | 瑞声光电科技(常州)有限公司 | screen sound-producing device |
| CN209497595U (en) * | 2019-03-29 | 2019-10-15 | 维沃移动通信有限公司 | A kind of screen vocal structure and terminal |
-
2020
- 2020-12-01 CN CN202011391789.XA patent/CN114584894A/en active Pending
-
2021
- 2021-10-09 WO PCT/CN2021/122869 patent/WO2022116684A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022116684A1 (en) | 2022-06-09 |
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