CN212752631U - Piezoelectric type screen sound production exciter and electronic terminal equipment - Google Patents
Piezoelectric type screen sound production exciter and electronic terminal equipment Download PDFInfo
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- CN212752631U CN212752631U CN202022048464.3U CN202022048464U CN212752631U CN 212752631 U CN212752631 U CN 212752631U CN 202022048464 U CN202022048464 U CN 202022048464U CN 212752631 U CN212752631 U CN 212752631U
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Abstract
The utility model provides a piezoelectric type screen sound production exciter and electronic terminal device relates to sound production technical field. The piezoelectric type screen sound-generating exciter comprises a piezoelectric vibrator capable of vibrating when electrified, an inertia block and a flexible fixed support; the two ends of the piezoelectric vibrator are respectively provided with a flexible fixing support, the inertia block is arranged on the piezoelectric vibrator, and the inertia block is arranged between the two flexible fixing supports. The electronic terminal equipment comprises a screen and a piezoelectric type screen sound production exciter; the flexible fixing support of the piezoelectric type screen sound-generating exciter is adhered to the screen. The technical effect of good use effect is achieved.
Description
Technical Field
The utility model relates to a sound production technical field particularly, relates to piezoelectric type screen sound production actuator and electronic terminal equipment.
Background
With the development of electronic communication technology, the use of electronic terminal devices, such as smart phones, tablet computers, etc., is becoming more and more popular. The user experience requirements on the electronic terminal equipment are higher and higher, and in the related technology, the receiver of the electronic terminal equipment is arranged on the front side of the equipment, for example, the receiver is located in the middle of the top below the electronic terminal equipment, and the receiver occupies a part of area below the electronic terminal equipment, so that the display screen cannot completely cover the front side of the electronic terminal equipment, and the display area is not large enough.
For example, a mobile phone or a tablet computer needs to be waterproof, a sound hole cannot be formed in the shell, and the screen sound-emitting exciter can solve the problem.
The sound production principle of the screen sound production exciter is as follows: the vibration of a motor transducer installed on the electronic equipment is transmitted to a screen or other casing capable of vibrating to produce sound, and then the sound production effect is realized through the vibration of the screen or other casing capable of vibrating.
In the screen sounding in the related technology, one end of a bending vibrator is fixed on the screen to form a cantilever beam structure, a metal inertia block is added at the free end of the bending vibrator, and a vibration acceleration is generated when the cantilever beam vibrates and is coupled to the screen through a fixed point, so that the screen vibrates to sound and generates a bone conduction effect. The vibration acceleration of the cantilever beam is transmitted to the screen through the fulcrum, a part of the vibration force of the cantilever beam forms a torsion force, only one component force is formed in the direction perpendicular to the screen, the effect that the torsion force and the perpendicular force act on the screen simultaneously is poor, the screen vibrates greatly, and the user experience effect is poor.
Therefore, it is an important technical problem to be solved by those skilled in the art to provide a piezoelectric type screen sound-generating exciter and an electronic terminal device with good use effect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a piezoelectric type screen sounding exciter and cell-phone to alleviate the poor technical problem of result of use among the prior art.
In a first aspect, an embodiment of the present invention provides a piezoelectric type screen sounding exciter, including a piezoelectric vibrator capable of vibrating when energized, an inertial mass, and a flexible fixing support;
the two ends of the piezoelectric vibrator are respectively provided with the flexible fixing supports, the inertia block is arranged on the piezoelectric vibrator, and the inertia block is arranged between the two flexible fixing supports.
With reference to the first aspect, embodiments of the present invention provide a possible implementation manner of the first aspect, wherein the inertia block is disposed on an upper surface of the piezoelectric vibrator.
With reference to the first aspect, embodiments of the present invention provide a possible implementation manner of the first aspect, wherein the inertia block is disposed on a lower surface of the piezoelectric vibrator.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the piezoelectric vibrator includes a substrate and a piezoelectric ceramic plate;
the piezoelectric ceramic piece is fixedly arranged on the substrate;
the two flexible fixing supports are adhered to the substrate.
In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein one piece is not less than the number of the piezoelectric ceramic pieces.
With reference to the first aspect, embodiments of the present invention provide a possible implementation manner of the first aspect, wherein the piezoelectric ceramic plate is disposed on an upper surface of the substrate.
In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the piezoelectric ceramic plate is disposed on the lower surface of the substrate.
In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the piezoelectric ceramic plate is disposed on both the upper surface and the lower surface of the substrate.
In combination with the first aspect, embodiments of the present invention provide a possible implementation manner of the first aspect, wherein a center line of the inertia block coincides with a center line of the piezoelectric vibrator.
In a second aspect, an embodiment of the present invention provides an electronic terminal device, including a screen and the piezoelectric screen sound exciter;
and the flexible fixed support of the piezoelectric type screen sound-generating exciter is adhered to the screen.
Has the advantages that:
the embodiment of the utility model provides a piezoelectric type screen sounding exciter, which comprises a piezoelectric vibrator capable of vibrating when electrified, an inertia block and a flexible fixed support; the two ends of the piezoelectric vibrator are respectively provided with a flexible fixing support, the inertia block is arranged on the piezoelectric vibrator, and the inertia block is arranged between the two flexible fixing supports.
When the screen vibration damping device is used, the two ends of the piezoelectric vibrator are fixedly connected with the screen of the electronic terminal device through the flexible fixing support, and the inertia block is installed in the middle of the piezoelectric vibrator, so that when the piezoelectric vibrator fixed on the electronic terminal device at the two ends vibrates, the generated acceleration is larger, the resultant force is vertical to the screen, the larger vibration acceleration in the direction vertical to the screen of the electronic terminal device can be transmitted, the maximum volume can be obtained, the best effect of the tone quality can be achieved, meanwhile, the vibration amplitude generated by the piezoelectric vibrator during working can be reduced through the flexible fixing support, and the use experience of a user is improved.
The embodiment of the utility model provides an electronic terminal device, which comprises a screen and a piezoelectric screen sounding exciter; the flexible fixing support of the piezoelectric type screen sound-generating exciter is adhered to the screen. The electronic terminal device has the advantages compared with the prior art, and the description is omitted here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a first embodiment of a piezoelectric type screen sound-generating actuator according to an embodiment of the present invention;
fig. 2 is a second embodiment of a piezoelectric type screen sound-generating actuator according to an embodiment of the present invention;
fig. 3 is a third embodiment of the piezoelectric type screen sound-generating actuator according to the embodiment of the present invention.
Icon:
1-a piezoelectric vibrator; 11-a substrate; 12-a piezoelectric ceramic sheet;
2-an inertia block;
3-flexible fixing support.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Referring to fig. 1, 2 and 3, the present embodiment provides a piezoelectric type screen sound exciter, including a piezoelectric vibrator 1 capable of vibrating when energized, an inertial mass 2 and a flexible fixing support 3; both ends of the piezoelectric vibrator 1 are provided with flexible fixing supports 3, the inertia block 2 is arranged on the piezoelectric vibrator 1, and the inertia block 2 is arranged between the two flexible fixing supports 3.
When the piezoelectric vibrator is used, the two ends of the piezoelectric vibrator 1 are fixedly connected with a screen of an electronic terminal device through the flexible fixing support 3, and the inertia block 2 is installed in the middle of the piezoelectric vibrator 1, so that when the piezoelectric vibrator 1 with the two ends fixed on the electronic terminal device vibrates, the generated acceleration is larger, the resultant force is vertical to the screen, the larger vibration acceleration in the direction vertical to the screen can be transmitted to the electronic terminal device, the volume can be maximized, the effect of the best tone quality can be achieved, meanwhile, the flexible fixing support 3 can reduce the vibration amplitude generated to the screen when the piezoelectric vibrator 1 works, and the use experience of a user is improved.
Specifically, the piezoelectric type screen sound production exciter that this embodiment provided is installed on electronic terminal's screen to piezoelectric vibrator 1's both ends are fixed on electronic terminal's screen through flexible fixed bolster 3, and when piezoelectric vibrator 1 circular telegram during operation, piezoelectric vibrator 1 can produce the vibration, and the screen vibration that piezoelectric vibrator 1 vibration can drive electronic terminal's, thereby the completion takes place, and technical staff in the art can design the acoustics design moreover, can further improve the volume.
Specifically, piezoelectric vibrator 1 bonds on electronic terminal's screen through flexible fixed bolster 3, after piezoelectric vibrator 1 circular telegram, piezoelectric vibrator 1 can produce the vibration, can drive electronic terminal's screen emergence vibration behind the vibration of piezoelectric vibrator 1, thereby produce sound, and through the setting of flexible fixed bolster 3, can reduce the vibration range of electronic terminal's screen, thereby can enough send sound, can reduce the vibration range of electronic terminal's screen again, when making the user use electronic terminal, can not feel obvious vibration, thereby improve and use experience.
Wherein, flexible fixed bolster 3 can bond on electronic terminal equipment's screen, the installation equipment of being convenient for.
It should be noted that the flexible fixing support 3 may be made of flexible objects, such as foam, rubber, etc., and those skilled in the art can select the material of the flexible fixing support 3 according to actual requirements.
The inertia block 2 can be a metal block, and the arrangement of the inertia block 2 can improve the vibration amplitude of the piezoelectric vibrator 1, so that the volume is improved; and of the inertial mass 2.
It is noted that a person skilled in the art may arrange acoustic structures on the electronic terminal device to further increase the volume.
Referring to fig. 1, 2, and 3, in an alternative of the present embodiment, an inertial mass 2 is provided on the upper surface of a piezoelectric vibrator 1.
Specifically, according to actual needs, the inertia block 2 can be installed on the upper surface of the piezoelectric vibrator 1, when the piezoelectric vibrator 1 is powered on, the piezoelectric vibrator 1 can vibrate, and the amplitude of the vibration of the piezoelectric vibrator 1 can be increased through the amplification of the inertia block 2, so that the volume is increased.
Referring to fig. 1, 2, and 3, in an alternative of the present embodiment, an inertial mass 2 is provided on the lower surface of a piezoelectric vibrator 1.
Specifically, according to actual needs, the inertia block 2 can be installed on the lower surface of the piezoelectric vibrator 1, when the piezoelectric vibrator 1 is powered on, the piezoelectric vibrator 1 can vibrate, and the amplitude of the vibration of the piezoelectric vibrator 1 can be increased through the amplification of the inertia block 2, so that the volume is increased.
Referring to fig. 1, 2 and 3, in an alternative of the present embodiment, a piezoelectric vibrator 1 includes a substrate 11 and a piezoelectric ceramic sheet 12; the piezoelectric ceramic plate 12 is fixedly arranged on the substrate 11; two flexible fixing supports 3 are bonded to the substrate 11.
Specifically, the piezoelectric ceramic plate 12 is bonded to the substrate 11, and when the piezoelectric ceramic plate 12 is powered on to work, the substrate 11 can be driven to vibrate.
Wherein, two flexible fixed bolster 3 bond at the both ends of substrate 11, when piezoceramics piece 12 circular telegram during operation, piezoelectric vibrator 1 can produce the vibration, can drive inertia piece 2 vibration on it during piezoelectric vibrator 1 vibration, supports substrate 11 through two flexible fixed bolsters 3, can guarantee to the support of inertia piece 2, guarantees inertia piece 2 normal work for inertia piece 2 can not lead to the fact the damage to substrate 11.
In an alternative of this embodiment, the number of the piezoceramic wafers 12 is not less than one.
Specifically, a plurality of piezoelectric ceramic plates 12 may be disposed on one side of the substrate 11, and the piezoelectric ceramic plates 12 are driven to increase the volume.
Referring to fig. 1, 2 and 3, in an alternative embodiment, a piezoceramic sheet 12 is provided on the upper surface of the substrate 11.
Specifically, the piezoelectric ceramic plate 12 is adhered to the upper surface of the substrate 11, and when the piezoelectric ceramic plate 12 is electrified to work, the substrate 11 will vibrate.
Referring to fig. 1, 2 and 3, in an alternative embodiment, a piezoelectric ceramic sheet 12 is provided on the lower surface of a substrate 11.
Specifically, the piezoelectric ceramic plate 12 is adhered to the lower surface of the substrate 11, and when the piezoelectric ceramic plate 12 is powered on to work, the substrate 11 vibrates.
Referring to fig. 1, 2 and 3, in an alternative embodiment, a piezoelectric ceramic sheet 12 is disposed on both the upper and lower surfaces of a substrate 11.
Specifically, the piezoelectric ceramic plates 12 are adhered to the upper surface and the lower surface of the substrate 11, and when the piezoelectric ceramic plates 12 are electrified to work, the substrate 11 can vibrate.
Referring to fig. 1, 2, and 3, in an alternative of the present embodiment, the center line of the inertial mass 2 coincides with the center line of the piezoelectric vibrator 1.
Specifically, the volume of the piezoelectric type screen sound exciter according to the present embodiment can be increased by disposing the inertial mass 2 at the center of the piezoelectric vibrator 1.
It should be further noted that the piezoelectric vibrator 1 is bonded to the flexible fixing support 3, and the flexible fixing support 3 is bonded to the screen of the electronic terminal device. Wherein, the bonding is as follows: a method for firmly joining together materials of the same or different kinds by means of the adhesive force of an adhesive on a solid surface.
And there are two main forms of the above-mentioned "bonding": non-structural and structural. The non-structural adhesive mainly refers to surface adhesion, sealing and functional adhesive, and typical non-structural adhesives comprise surface adhesive, sealing and conductive adhesive and the like. Structural bonding refers to the phenomenon of bonding in which structural units are firmly secured together with an adhesive. The structural adhesive and its bond points used therein must be capable of transmitting structural stresses without affecting its structural integrity and environmental suitability within the design envelope.
Wherein the main function of the adhesive is to connect the materials to be bonded together. Compared with the traditional mechanical fastening, the stress transmission in the bonded assembly is more uniform in stress distribution, and the bonded assembly structure is higher in strength, lower in cost and lighter in weight than the mechanical fastening (riveting, welding, interference connection, bolt connection and the like). If the thin-wall part adhesive is adhered to a thick-wall product, the full strength of the thin-wall part can be fully exerted. The strength of the mechanical fastening and welding structure is limited by the fastener or weld and its thermally sensitive area.
Referring to fig. 1, the present embodiment provides a piezoelectric type screen sound exciter of a first embodiment, which includes a piezoelectric vibrator 1, an inertial mass 2, and a flexible fixing support 3 mounted on the piezoelectric vibrator 1; the piezoelectric vibrator 1 comprises a substrate 11 and a piezoelectric ceramic piece 12, wherein the substrate 11 is in a flat plate shape, two ends of the substrate are fixed ends, the piezoelectric ceramic piece 12 is arranged on the substrate 11, an inertia block 2 is arranged in the middle of the piezoelectric vibrator, and flexible fixing supports 3 are fixedly connected to two ends of the substrate 11; the flexible fixing support 3 is used for being fixedly connected with a screen; the flexible fixing support 3 is fixedly connected with the screen in a bonding mode by adopting a flexible object; the inertial mass 2 is attached to the lower surface of the middle portion of the piezoelectric vibrator 1. The number of the piezoceramic wafers 12 is two. The piezoelectric ceramic sheets 12 are bonded to the upper and lower surfaces of the substrate 11.
Referring to fig. 2, the present embodiment provides a piezoelectric type screen sound exciter of a first embodiment, which comprises a piezoelectric vibrator 1, an inertial mass 2 and a flexible fixing support 3 mounted on the piezoelectric vibrator 1; the piezoelectric vibrator 1 comprises a substrate 11 and a piezoelectric ceramic piece 12, wherein the substrate 11 is in a flat plate shape, two ends of the substrate are fixed ends, the piezoelectric ceramic piece 12 is arranged on the substrate 11, an inertia block 2 is arranged in the middle of the piezoelectric vibrator, and flexible fixing supports 3 are fixedly connected to two ends of the substrate 11; the flexible fixing support 3 is used for being fixedly connected with a screen; the flexible fixing support 3 is fixedly connected with the screen in a bonding mode by adopting a flexible object; the inertial mass 2 is attached to the lower surface of the middle portion of the piezoelectric vibrator 1. The number of the piezoelectric ceramic sheets 12 is one, and the piezoelectric ceramic sheets 12 are bonded to the lower surface of the substrate 11.
Referring to fig. 3, wherein the present embodiment provides a piezoelectric type screen sound exciter of a second embodiment, comprising a piezoelectric vibrator 1, an inertial mass 2, and a flexible fixing support 3 mounted on the piezoelectric vibrator 1; the piezoelectric vibrator 1 comprises a substrate 11 and a piezoelectric ceramic piece 12, wherein the substrate 11 is in a flat plate shape, two ends of the substrate are fixed ends, the piezoelectric ceramic piece 12 is arranged on the substrate 11, an inertia block 2 is arranged in the middle of the piezoelectric vibrator, and flexible fixing supports 3 are fixedly connected to two ends of the substrate 11; the flexible fixing support 3 is used for being fixedly connected with a screen; the flexible fixing support 3 is fixedly connected with the screen in a bonding mode by adopting a flexible object; the inertial mass 2 is attached to the upper surface of the middle portion of the piezoelectric vibrator 1. The number of the piezoceramic wafers 12 is two. The piezoelectric ceramic sheets 12 are bonded to the upper and lower surfaces of the substrate 11.
The embodiment provides an electronic terminal device, which comprises a screen and a piezoelectric screen sound-emitting exciter; the flexible fixing support 3 of the piezoelectric type screen sound exciter is adhered on the screen.
Specifically, compared with the prior art, the electronic terminal device provided in this embodiment has the above advantages, and details are not described herein.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. A piezoelectric screen-sounding actuator, comprising: the piezoelectric vibrator (1), the inertia block (2) and the flexible fixing support (3) are electrified and can vibrate;
the two ends of the piezoelectric vibrator (1) are provided with the flexible fixing supports (3), the inertia block (2) is arranged on the piezoelectric vibrator (1), and the inertia block (2) is arranged between the two flexible fixing supports (3).
2. The piezoelectric screen sound exciter according to claim 1, characterized in that the inertial mass (2) is provided on the upper surface of the piezoelectric vibrator (1).
3. The piezoelectric screen sound exciter according to claim 1, characterized in that the inertial mass (2) is disposed on the lower surface of the piezoelectric vibrator (1).
4. The piezoelectric screen sound exciter according to claim 1, characterized in that the piezoelectric vibrator (1) comprises a substrate (11) and a piezoelectric ceramic sheet (12);
the piezoelectric ceramic piece (12) is fixedly arranged on the substrate (11);
the two flexible fixing supports (3) are adhered to the substrate (11).
5. The piezoelectric screen sound exciter according to claim 4, characterized in that the number of the piezoceramic wafers (12) is not less than one.
6. The piezoelectric screen sound exciter according to claim 5, characterized in that the piezoelectric ceramic sheet (12) is provided on the upper surface of the substrate (11).
7. The piezoelectric screen sound exciter according to claim 5, characterized in that the piezoelectric ceramic sheet (12) is provided on the lower surface of the substrate (11).
8. The piezoelectric screen sound exciter according to claim 5, wherein the piezoelectric ceramic plate (12) is provided on both of the upper surface and the lower surface of the substrate (11).
9. Piezoelectric screen sounding actuator according to any of claims 1-8, characterized by the fact that the centre line of the inertial mass (2) coincides with the centre line of the piezoelectric vibrator (1).
10. An electronic terminal device comprising a screen and a piezoelectric screen sound exciter according to any one of claims 1 to 9;
the flexible fixing support (3) of the piezoelectric type screen sound-generating exciter is adhered to the screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022048464.3U CN212752631U (en) | 2020-09-17 | 2020-09-17 | Piezoelectric type screen sound production exciter and electronic terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022048464.3U CN212752631U (en) | 2020-09-17 | 2020-09-17 | Piezoelectric type screen sound production exciter and electronic terminal equipment |
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| Publication Number | Publication Date |
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| CN212752631U true CN212752631U (en) | 2021-03-19 |
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| CN202022048464.3U Active CN212752631U (en) | 2020-09-17 | 2020-09-17 | Piezoelectric type screen sound production exciter and electronic terminal equipment |
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| CN (1) | CN212752631U (en) |
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- 2020-09-17 CN CN202022048464.3U patent/CN212752631U/en active Active
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