Patent Description:
With the development of science and technology, a holeless electronic device with a full screen has become a mainstream of development, which needs to cancel a structure of a sound output hole arranged on the same face with a display screen, thus promoting the development of sound generation technology. Taking the sound generation technology by a screen as an example, a vibrator is fixed to the display screen and drives the display screen to vibrate to generate sound. In this way, a loudspeaker of the electronic device is replaced and the structure of the sound output hole is cancelled, which is conductive to the full screen of the electronic device and the holeless electronic device. However, a sound pressure level of a frequency response curve of the vibrator is not balanced at low and high frequencies, which is not conducive to ensuring a sound quality of the electronic device.

<CIT> relates to a panel loudspeaker controller for controlling a panel loudspeaker including a plurality of actuators. The panel loudspeaker controller includes: a plurality of electrical signal inputs, each input being associated with each actuator of the panel loudspeaker to be controlled; a plurality of signal processors, each signal processor being associated with each input and having an output for an electrical signal to control an actuator of the panel loudspeaker, and each signal processor implementing a transfer function from its input to its output based on each actuator of the panel loudspeaker to a desired acoustic receiver; and a signal processor controller associated with all of the plurality of signal processors, wherein the signal processor controller is preconfigured to improve phase alignment between the signals as an ensemble output at the outputs of the signal processors. The actuators may consist of two piezoelectric elements or patches of unequal size attached directly to the rear of a display stiffening plate.

<CIT> relates to a piezoelectric speaker which radiates acoustic waves by vibrating according to an applied voltage, including (i) a substrate which includes a first region having first bending stiffness against bending of a plane perpendicular to a vibration direction and a second region having second bending stiffness against bending of the perpendicular plane, the second bending stiffness being different from the first bending stiffness, (ii) a first piezoelectric element which is mounted on the first region and to which a voltage of a first frequency band is applied, and (iii) a second piezoelectric element which is mounted on the second region and to which a voltage of a second frequency band different from the first frequency band is applied. The first region is a bass-range sound reproduction region. Multiple second regions, being smaller than the first region, may be provided around the first region.

<CIT> relates to an acoustic generator including at least a plurality of piezoelectric elements (exciters) and a vibrating potion. The piezoelectric elements vibrate upon reception of input of an electric signal. The piezoelectric elements are attached to the vibrating portion. The piezoelectric elements are attached to the vibrating portion asymmetrically with respect to all the symmetry axes of a figure drawn by a contour of the vibrating portion when seen from the above. The thickness of at least one of the plurality of exciters is made different from the thickness of the other exciter.

<CIT> relates to a balanced acoustic device including an enclosure defining an acoustic chamber, a first passive radiator diaphragm having an active driver assembly and a second passive radiator diaphragm having a plurality of active driver assemblies that are laterally offset. The moving mass of the first passive radiator assembly is substantially equal to the moving mass of the second passive radiator diaphragm. The lateral offsets of the active driver assemblies in the second passive radiator diaphragm eliminate their interference within the enclosure with the active driver assembly of the first passive radiator diaphragm. Advantageously, a smaller distance between the two passive radiator diaphragms is allowed and therefore a smaller enclosure is possible.

The present invention provides an improved vibrator apparatus and an electronic device.

An aspect of the present invention provides an electronic device. The electronic device includes a vibrator apparatus comprising a body and a plurality of vibrators, wherein the vibrator apparatus is fixed in the body of the electronic device, the plurality of vibrators are separately disposed in the body and configured to vibrate to generate sound. Each of the plurality of vibrators comprises a bonding face configured to be bonded to the body. Two or more vibrators of the plurality of vibrators have at least one of the following different qualities: thicknesses, different areas of the bonding face or different shapes of the bonding face. The thickness of each of the plurality of vibrators is measured along a direction perpendicular to the bonding face.

The plurality of vibrators includes a first vibrator and at least one second vibrator, the first vibrator and the at least one second vibrator are separately disposed, and area of a bonding face of the first vibrator is larger than area of a bonding face of the second vibrator.

Preferably, the at least one second vibrator is disposed closer to an edge or a corner of the body than the first vibrator is.

According to the invention at least two second vibrators are provided, and the at least two second vibrators are disposed symmetrically around a center of gravity of the first vibrator.

The at least two second vibrators are disposed in a circular form.

The thickness of the first vibrator is larger than the thickness of the second vibrator.

Preferably, the plurality of vibrators include a vibrator with a single-layer structure and/or a vibrator with a multi-layer structure.

Optionally, the plurality of vibrators include at least one of a piezoelectric film or a piezoelectric ceramic; and/or, the vibrator apparatus further includes an adhesive layer disposed on the bonding face, and the adhesive layer is configured to connect the bonding face to the body; and/or, the vibrator apparatus further includes a flexible printed circuit board, and the flexible printed circuit board is connected with the plurality of vibrators at a face opposite to the bonding face.

The plurality of vibrators of the vibrator apparatus are bonded to a face of the housing facing the screen display.

Preferably, the electronic device further includes a controller connected with the vibrator apparatus. The controller is configured to control vibration of two or more vibrators of the plurality of vibrators of the vibrator apparatus; and/or the controller is configured to control the plurality of vibrators of the vibrator apparatus to vibrate under at least one driving voltage.

The electronic device provided by the embodiments of the present invention at least have following beneficial effects.

In the electronic device according to the present invention, two or more than two vibrators of the plurality of vibrators have at least one of following different qualities: thicknesses, areas of the bonding face, or shapes of the bonding face. By means of the cooperation of these vibrators, not only the sound pressure level of the frequency response curve of the vibrator apparatus is balanced and consistent, so as to improve the sound generation effect, but also more possibilities for flexible arrangements of the vibrators are provided, which is conducive to reducing the occupied space, such that the electronic device is highly integrated and the volume of the electronic device is miniaturized. Moreover, compared with a plurality of identical vibrators, the thickness, the area of the bonding face, the shape of the bonding face and/or the number of the vibrators in the present invention can be flexibly designed, which is conducive to reducing the power consumption. The adoption of the vibrator apparatus also facilitates the development of the full screen of the electronic device and the holeless electronic device.

It should be understood that the above general description and the detailed description below are merely used to explain the present invention, and cannot be construed as a limitation to the present invention.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate examples consistent with the present invention and, together with the description, serve to explain the principles of the present invention. It is to be noted that -contrary to the claimed embodiment- some of the following figures for example show the vibrators as being attached to the screen display rather than to a face of the housing facing the screen display. Also, not all depicted first and second vibrators have different thickness. Therefore, the following detailed description illustrates partial aspects of the invention, but the scope of the invention is solely defined by the appended claims.

Reference will now be made in detail to illustrative examples with the accompanying drawings. The implementations set forth in the following description of illustrative examples do not represent all implementations consistent with the present invention. Instead, they are merely examples of apparatuses and methods consistent with aspects related to the present invention as recited in the appended claims.

The terms used in the present invention are merely for the purpose of describing specific examples, which are not intended to limit the present invention. Unless defined otherwise, the technical or scientific terminologies used in the present invention shall be the general meaning understood by those skilled in the related art of the present invention. Terms such as "first", "second" or the like used in the descriptions and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "one" or "a" do not refer to quantity limitation, but indicate the existence of at least one. Unless specified otherwise, terms such as "comprise", "include" or the like mean that the elements or objects presented before "comprise" or "include" contain the elements or objects and their equivalents presented after "comprise" or "include", while other elements or objects are not excluded. The terms "interconnect", "connected" or the like are not restricted to physical or mechanical connections, but may also be electrical connections, no matter direct or indirect.

As used in the descriptions and the appended claims of the present invention, "a" and "the" in singular forms mean including plural forms, unless clearly indicated in the context otherwise. It should also be understood that, as used herein, the term "and/or" represents and contains any and all possible combinations of one or more associated listed items.

In some examples, an electronic device includes a body and a vibrator arranged in the body, and the vibrator is configured to vibrate to generate sound. However, a frequency response curve of the vibrator does not have a balanced sound pressure level at low and high frequencies, which cannot ensure a sound quality and is not conducive to replacing a loudspeaker of the electronic device.

In other examples, an electronic device includes a body and a vibrator apparatus arranged in the body. The vibrator apparatus includes a plurality of identical vibrators in a regular and orderly arrangement. Although the sound pressure level of the frequency response curve of the vibrator apparatus is relatively balanced, so as to solve a problem of the unbalanced sound pressure level in low, medium and high frequencies, the limitation is relatively great. The limitation includes that an arrangement of the plurality of vibrators is not flexible and occupies a large area, and the dimension and number of the plurality of vibrators cannot be designed flexibly, which is not conducive to reducing the power consumption.

In order to solve the above problems, the present invention provides a vibrator apparatus and an electronic device, and the vibrator apparatus is fixed in a body of the electronic device. The vibrator apparatus includes at least two vibrators separately disposed in the body, and configured vibrate to generate sound. The vibrator includes a bonding face configured to be bonded to the body. Two or more than two vibrators of the at least two vibrators have at least one of different thicknesses, different areas of the bonding faces and different shapes of the bonding faces. The thickness of the vibrator is a dimension of the vibrator along a direction perpendicular to the bonding face. The electronic device includes the body and the vibrator apparatus fixed in the body.

In the vibrator apparatus and the electronic device according to the present invention, the two or more than two vibrators of the at least two vibrators have at least one of following different qualities: thicknesses, areas of the bonding face, or shapes of the bonding face. By means of the cooperation of these vibrators, not only the sound pressure level of the frequency response curve of the vibrator apparatus is balanced and consistent, so as to improve the sound generation effect, but also more possibilities for flexible arrangements of the vibrators are provided, which is conducive to reducing the occupied space, such that the electronic device is highly integrated and the volume of the electronic device is miniaturized. Moreover, compared with a plurality of identical vibrators, the thickness, the area of the bonding face, the shape of the bonding face and/or the number of the vibrators in the examples of the present invention can be flexibly designed, which is conducive to reducing the power consumption. The adoption of the vibrator apparatus also facilitates the development of the full screen of the electronic device and the holeless electronic device.

In order to understand the vibrator apparatus and the electronic device provided in the present invention more clearly, following detailed descriptions are made with reference to <FIG>.

The electronic device provided in the examples of the present invention includes, but is not limited to, a mobile phone, a tablet computer, an iPad, a digital broadcasting terminal, a message receiving and sending device, a game console, a medical facility, a fitness facility, a personal digital assistant, and other intelligent devices, etc..

<FIG> illustrates a partial schematic view of an electronic device according to an illustrative example of the present invention. The electronic device includes a body <NUM>, a vibrator apparatus <NUM> and a controller, and the vibrator apparatus <NUM> is fixed in the body <NUM>. The vibrator apparatus <NUM> may drive at least part of the body <NUM> to vibrate to generate sound, so as to replace a loudspeaker or other sound generators of the electronic device, which is conducive to cancelling a sound output hole of the electronic device and promoting the design of the full screen of the electronic device and the holeless electronic device.

In some examples, the body <NUM> includes a housing <NUM>, and the vibrator apparatus <NUM> is fixed in the housing <NUM>.

In other examples, as illustrated in <FIG>, the body <NUM> includes a housing <NUM> and a screen display <NUM> arranged on a front face of the housing <NUM>, a space is formed between the housing <NUM> and the screen display <NUM>, and the vibrator apparatus <NUM> is arranged in the space. In some examples, a vibrator <NUM> of the vibrator apparatus <NUM> is bonded to a face of the housing <NUM> facing the screen display <NUM>, and the vibrator apparatus <NUM> drives the housing <NUM> to vibrate to generate sound. The housing <NUM> may include a middle frame, and the vibrator apparatus <NUM> is fixed to the middle frame.

In other examples, the vibrator <NUM> of the vibrator apparatus <NUM> is bonded to a face of the screen display <NUM> facing the housing <NUM>, and the vibrator apparatus <NUM> drives the screen display <NUM> to vibrate to generate sound. Further, when the vibrator <NUM> is bonded to the screen display <NUM>, a gap may be formed between the vibrator apparatus <NUM> and the housing <NUM> to avoid driving the housing <NUM> to vibrate, thus ensuring the user's comfortable experience of holding the electronic device.

<FIG> illustrates a partial schematic view of an electronic device according to an illustrative example of the present invention. In some examples, as illustrated in <FIG>, the face of the display screen <NUM> facing the housing <NUM> is provided with a shielding layer <NUM>, and the vibrator <NUM> of the vibrator apparatus <NUM> is bonded to a face of the shielding layer <NUM> facing away from the display screen <NUM>. In this way, the vibrator <NUM> can be avoided from being directly bonded to the display screen <NUM> to produce a bonding mark, which otherwise affects the display effect of the display screen <NUM>. In some examples, the shielding layer <NUM> may be bonded to the display screen <NUM> through a solid adhesive, a liquid adhesive, a UV adhesive, a pressure-sensitive adhesive or the like with a relatively dark color.

The vibrator apparatus <NUM> includes at least two vibrators <NUM> separately disposed in the body <NUM> and a flexible printed circuit board <NUM>.

<FIG> illustrates a partially enlarged schematic view of the electronic device in <FIG>. The at least two vibrators <NUM> are configured to vibrate to generate sound. As illustrated in <FIG>, the vibrator <NUM> includes a bonding face <NUM> configured be bonded to the display screen <NUM>. Two or more than two vibrators <NUM> of the at least two vibrators <NUM> have at least one of different thicknesses, different areas of the bonding faces <NUM>, or different shapes of the bonding faces <NUM>. A thickness t of the vibrator <NUM> is a dimension of the vibrator <NUM> along a direction perpendicular to the bonding face <NUM>.

It should be noted that, the thicknesses of the two or more than two vibrators <NUM> of the at least two vibrators <NUM> are different, or the areas of the bonding faces <NUM> of the two or more than two vibrators <NUM> of the at least two vibrators <NUM> are different, or the shapes of the bonding faces <NUM> of the two or more than two vibrators <NUM> of the at least two vibrators <NUM> are different, or both the thicknesses of the two or more than two vibrators <NUM> of the at least two vibrators <NUM> and the areas of the bonding faces <NUM> of the two or more than two vibrators <NUM> of the at least two vibrators <NUM> are different (for instance, the thickness and the area of bonding face <NUM> of one vibrator <NUM> are different from the thickness and the area of bonding face <NUM> of another vibrator <NUM>), or both the thicknesses of the two or more than two vibrators <NUM> of the at least two vibrators <NUM> and the shapes of the bonding faces <NUM> of the two or more than two vibrators <NUM> of the at least two vibrators <NUM> are different (for instance, the thickness and the shape of the bonding face <NUM> of one vibrator <NUM> are different from the thickness and the shape of the bonding face <NUM> of another vibrator <NUM>), or both the areas of the bonding faces <NUM> of the two or more than two vibrators <NUM> of the at least two vibrators <NUM> and the shapes of the bonding faces <NUM> of the two or more than two vibrators <NUM> of the at least two vibrators <NUM> are different (for instance, the area and the shape of the bonding face <NUM> of one vibrator <NUM> are different from the area and the shape of the bonding face <NUM> of another vibrator <NUM>), or the thicknesses, the areas of the bonding faces <NUM> and the shapes of the bonding faces <NUM> of the two or more than two vibrators <NUM> of the at least two vibrators <NUM> are different. Further, some vibrators <NUM> of the at least two vibrators <NUM> may have identical thicknesses, identical areas of the bonding faces <NUM>, and/or identical shapes of the bonding faces <NUM>.

In the vibrator apparatus <NUM> and the electronic device according to the example of the present invention, the two or more than two vibrators <NUM> of the at least two vibrators <NUM> have at least one of the different thicknesses, the different areas of the bonding faces <NUM> and the different shapes of the bonding faces <NUM>, such that the vibrator apparatus <NUM> includes the vibrator <NUM> having the frequency response curve with an excellent low frequency performance, the vibrator <NUM> having the frequency response curve with an excellent intermediate frequency performance and the vibrator <NUM> having the frequency response curve with an excellent high frequency performance. By means of the cooperation of these vibrators <NUM>, not only the sound pressure level of the frequency response curve of the vibrator apparatus <NUM> is balanced and consistent, so as to improve the sound generation effect of the electronic device, but also more possibilities for flexible arrangements of the vibrator apparatus <NUM> are provided, which is conducive to reducing the occupied space, such that the electronic device is highly integrated and the volume of the electronic device is miniaturized. Moreover, compared with a plurality of identical vibrators <NUM>, the thickness, the area of the bonding face <NUM>, the shape of the bonding face <NUM> and/or the number of the vibrators <NUM> in the examples of the present invention can be flexibly designed, which is conducive to reducing the power consumption. The adoption of the vibrator apparatus <NUM> also facilitates the development of the full screen of the electronic device and the holeless electronic device.

In some examples, the at least two vibrators <NUM> include at least one of a piezoelectric film and a piezoelectric ceramic. In some examples, the at least two vibrators <NUM> are the piezoelectric films. In some examples, the at least two vibrators <NUM> are the piezoelectric ceramics. In some examples, the at least two vibrators <NUM> include the piezoelectric film and the piezoelectric ceramic. Further, the vibrator <NUM> may be other exciters, which are not specifically limited in the present invention. In some examples, the piezoelectric film is light in weight, soft, and can be easily applied to different spaces within the body <NUM>. Compared with other exciters, the piezoelectric film and the piezoelectric ceramic are more conducive to saving the occupied space.

In some examples, a material of the vibrator <NUM> includes a piezoelectric material. In some examples, the piezoelectric material includes lead zirconate titanate piezoelectric ceramics (PZT), and polyvinylidene fluoride (PVDF).

The flexible printed circuit board (FPCB) <NUM> is connected with a face of the vibrator <NUM> which faces away from the bonding face <NUM>. In some examples, the FPCB <NUM> is also connected with a controller in the electronic device, and the controller controls the vibrator <NUM> to operate through the FPCB <NUM>. Moreover, the FPCB <NUM> may be fitted with spaces of different structures in the body <NUM>, which is conducive to the high integration and the miniaturized volume of the electronic device.

In some examples, the vibrator apparatus <NUM> also includes an adhesive layer arranged on the bonding face <NUM>, and the adhesive layer is configured to bond the bonding face <NUM> to the body <NUM>. In some examples, the way that the vibrator <NUM> is adhered to the body <NUM> through the adhesive layer is simple and facilitates the production and manufacture of the electronic device. Further, the vibrator <NUM> may also be fixed to the body <NUM> in other ways. In some examples, the adhesive layer is formed by a solid adhesive, a liquid adhesive, a UV adhesive, or a pressure-sensitive adhesive.

The controller is connected with the vibrator apparatus <NUM>. Two or more than two vibrators <NUM> of the at least two vibrators <NUM> of the vibrator apparatus <NUM> are controlled to vibrate by the controller, and/or the controller controls the vibrator <NUM> of the vibrator apparatus <NUM> to vibrate under at least one driving voltage. In some examples, the controller may control a part of the vibrators <NUM> to vibrate and other vibrators <NUM> not to work, and may also control all the vibrators <NUM> to vibrate. The controller may control the vibrator <NUM> to vibrate under one driving voltage, and may also control the vibrator <NUM> to vibrate under a plurality of driving voltages. In this way, it is flexible to control a part of the vibrators <NUM> to vibrate and adjust the driving voltage based on actual situations, which is not only conductive to the balanced and consistent performance of the frequency response curve of the vibrator apparatus <NUM>, but also conducive to energy saving and consumption reduction.

In some examples, the controller includes an integrated circuit (IC), a plurality of vibrators <NUM> are connected to the IC in parallel, and the IC may control different vibrators <NUM> to vibrate with different driving voltages or with identical driving voltage. The plurality of vibrators <NUM> may also be connected to the IC in series. In other examples, the controller includes a plurality of ICs, and the plurality of ICs are connected to a plurality of vibrators <NUM> in one to one correspondence. Each IC may control the vibrator <NUM> connected thereto with a determined driving voltage, and the driving voltages of the plurality of ICs may be identical or different.

In some examples, the vibrator <NUM> is connected to the IC through at least two metal conductive contacts. When the vibrator apparatus <NUM> includes the flexible printed circuit board <NUM>, the controller is connected to the vibrator <NUM> through the flexible printed circuit board <NUM>.

The influences of the area of the bonding face <NUM>, the thickness and the position of the vibrator <NUM> on the frequency response curve are respectively explained as follows with reference to the drawings.

<FIG> illustrates a schematic view of frequency response curves of three vibrators <NUM> having the different areas of the bonding faces <NUM> according to an illustrative example of the present invention. In <FIG>, a horizontal axis (Freq) represents a frequency, and the frequency increases gradually along a direction to which an arrow of the horizontal axis points. A longitudinal axis (SPL) represents a sound pressure level, and the sound pressure level increases gradually along a direction to which an arrow of the longitudinal axis points. A frequency corresponding to a solid straight line is less than a frequency corresponding to a dotted straight line. Three frequency response curves A, B, C are the frequency response curves of Vibrator <NUM>, Vibrator <NUM>, and Vibrator <NUM>, respectively. Vibrator <NUM>, Vibrator <NUM>, and Vibrator <NUM> have the same structure and thickness, but the area of the bonding face of Vibrator <NUM> >the area of the bonding face of Vibrator <NUM>>the area of the bonding face of Vibrator <NUM>. It can be known from <FIG> that, at the solid straight line (i.e. at a relatively low frequency), the sound pressure level of the frequency response curve A >the sound pressure level of the frequency response curve B>the sound pressure level of the frequency response curve C. With the increase of the frequency, the sound pressure level of the frequency response curve A decreases, the sound pressure level of the frequency response curve B and the sound pressure level of the frequency response curve C first decrease and then increase, and the increase amplitude of the sound pressure level of the frequency response curve C is relatively large. At the dotted straight line (i.e. at a relatively high frequency), the sound pressure level of the frequency response curve A<the sound pressure level of the frequency response curve B<the sound pressure level of the frequency response curve C. As can be seen, the larger the area of the bonding face <NUM> of the vibrator <NUM> is, the better the low frequency performance of the frequency response curve is, and the smaller the area of the bonding face <NUM> of the vibrator <NUM> is, the better the high frequency performance of the frequency response curve is.

In some examples, the at least two vibrators <NUM> include a first vibrator <NUM> and at least one second vibrator <NUM>, and the first vibrator <NUM> and the at least one second vibrator <NUM> are dispersedly arranged. The area of the bonding face <NUM> of the first vibrator <NUM> is larger than that of the second vibrator <NUM>. In some examples, according to the influence of the area of the bonding face <NUM> on the frequency response curve, the low frequency performance of the frequency response curve of the first vibrator <NUM> is better than the low frequency performance of the frequency response curve of the second vibrator <NUM>, and the high frequency performance of the frequency response curve of the second vibrator <NUM> is better than the high frequency performance of the frequency response curve of the first vibrator <NUM>. By means of the cooperation of the first vibrator <NUM> and the second vibrator <NUM>, it is conductive to the balanced and consistent sound pressure level of the frequency response curve of the vibrator apparatus <NUM>.

In addition, in the example of the present invention, the areas of the bonding faces <NUM> of all the second vibrators <NUM> are identical or different, which needs to be designed according to actual situations and is not specifically limited in the present invention.

<FIG> illustrates a schematic view of frequency response curves of three vibrators <NUM> arranged at different positions according to an illustrative example of the present invention. In <FIG>, a horizontal axis (Freq) represents a frequency, and the frequency increases gradually along a direction to which an arrow of the horizontal axis points. A longitudinal axis (SPL) represents a sound pressure level, and the sound pressure level increases gradually along a direction to which an arrow of the longitudinal axis points. A frequency corresponding to a solid straight line is less than a frequency corresponding to a dotted straight line. Three frequency response curves I, II, III are the frequency response curves of Vibrator <NUM>, Vibrator <NUM>, and Vibrator <NUM>, respectively. Vibrator <NUM>, Vibrator <NUM>, and Vibrator <NUM> have the same structure and dimension, while the Vibrator <NUM> is arranged in middle of the body <NUM>, Vibrator <NUM> is arranged at an edge of the body <NUM>, and Vibrator <NUM> is arranged at a corner of the body <NUM>. As illustrated in <FIG>, at the solid straight line (i.e. at a relatively low frequency), the sound pressure level of the frequency response curve I>the sound pressure level of the frequency response curve II>the sound pressure level of the frequency response curve III. With the increase of the frequency, the sound pressure levels of the frequency response curves I, II, III first decrease and then increase. At the dotted straight line (i.e. at a relatively high frequency), the sound pressure level of the frequency response curve I<the sound pressure level of the frequency response curve II<the sound pressure level of the frequency response curve III. As can be seen, the closer the vibrator <NUM> is to the middle of the body <NUM>, the better the low frequency performance of the frequency response curve is, and the closer the vibrator <NUM> is to the edge or the corner of the body <NUM>, the better the high frequency performance of the frequency response curve is.

In some examples, the second vibrator <NUM> is arranged closer to the edge or the corner of the body <NUM> than the first vibrator <NUM>. In some examples, according to the influence of the arrangement position of the vibrator <NUM> on the frequency response curve, the low frequency performance of the frequency response curve of the first vibrator <NUM> is better than the low frequency performance of the frequency response curve of the second vibrator <NUM>, and the high frequency performance of the frequency response curve of the second vibrator <NUM> is better than the high frequency performance of the frequency response curve of the first vibrator <NUM>. Moreover, the area of the bonding face <NUM> of the first vibrator <NUM> is larger than the area of the bonding face <NUM> of the second vibrator <NUM>, such that the first vibrator <NUM> takes full advantages of its low frequency performance and the second vibrator <NUM> takes full advantages of its high frequency performance, which is conductive to that the vibrator apparatus <NUM> has the balanced and consistent frequency response curve.

In some examples, at least two second vibrators <NUM> are provided, and the at least two second vibrators <NUM> are arranged to be centered at a center of gravity of the first vibrator <NUM>. In some examples, the at least two second vibrators <NUM> are arranged based on the center of gravity of the first vibrator <NUM>, which is conductive to the effective cooperation between the first vibrator <NUM> and the second vibrator <NUM> so as to form the balanced and consistent frequency response curve.

<FIG> illustrates a schematic view of an arrangement of the vibrator apparatus <NUM> according to an illustrative example of the present invention. <FIG> illustrates a schematic view of an arrangement of the vibrator apparatus <NUM> according to an illustrative example of the present invention. <FIG> illustrates a schematic view of an arrangement of the vibrator apparatus <NUM> according to an illustrative example of the present invention. <FIG> illustrates a schematic view of an arrangement of the vibrator apparatus <NUM> according to an illustrative example of the present invention. The present invention gives following examples for the arrangement of the vibrator apparatus <NUM> with reference to <FIG>.

In some examples, the at least two second vibrators <NUM> are arranged in one of a straight line form (as illustrated in <FIG> or <FIG>), a circular form (as illustrated in <FIG>), or a polygonal form (as illustrated in <FIG>).

Based on the requirements for the frequency response curve, the occupied space and the power consumption of the vibrator apparatus <NUM>, the at least two second vibrators <NUM> may be arranged in one or more straight lines. In some examples, as illustrated in <FIG>, the at least two second vibrators <NUM> are arranged on both sides of the first vibrator <NUM> in the straight line form along a length direction <NUM> of the body <NUM>. In this way, the sound generated from the vibrator apparatus <NUM> has good directivity along the length direction <NUM>, and thus a sound output hole in this direction can be replaced. Additionally, this arrangement is simple and is conductive to improving the production efficiency of the electronic device.

In other examples, as illustrated in <FIG>, the at least two second vibrators <NUM> are arranged on both sides of the first vibrator <NUM> in the straight line form along a width direction <NUM> of the body <NUM>. In this way, the sound generated from the vibrator apparatus <NUM> has good directivity along the width direction <NUM>, and thus a sound output hole in this direction can be replaced. Additionally, this arrangement is simple and is conductive to improving the production efficiency of the electronic device.

In addition, a plurality of second vibrators <NUM> may be arranged around the first vibrator <NUM> in a form of a plurality of concentric circles. The plurality of second vibrators <NUM> may also be arranged around the first vibrator <NUM> in a form of a plurality of concentric polygons. Arrangement directions of the plurality of second vibrators <NUM> may be consistent, or may be staggered to form a structure similar to a flower.

In addition, the at least two second vibrators <NUM> and the first vibrator <NUM> may also be arranged in other regular or irregular forms.

<FIG> illustrates a schematic view of frequency response curves of three vibrators <NUM> with different thicknesses according to an illustrative example of the present invention. In <FIG>, a horizontal axis (Freq) represents a frequency, and the frequency increases gradually along a direction to which an arrow of the horizontal axis points. A longitudinal axis (SPL) represents the sound pressure level, and the sound pressure level increases gradually along a direction to which an arrow of the longitudinal axis points. Three frequency response curves a, b, c are the frequency response curves of Vibrator <NUM>, Vibrator <NUM>, and Vibrator <NUM>, respectively. Vibrator <NUM>, Vibrator <NUM> and Vibrator <NUM> have the same structure and the same area of the bonding face <NUM>, while the thickness of Vibrator <NUM>>the thickness of Vibrator <NUM> >the thickness of Vibrator <NUM>. It can be seen from <FIG> that, the sound pressure level of the frequency response curve a>the sound pressure level of the frequency response curve b>the sound pressure level of the frequency response curve c, and shapes of the frequency response curves a, b, c are identical. As can be seen, the larger the thickness of the vibrator <NUM> is, the larger the sound pressure level of the frequency response curve is, and the smaller the thickness of the vibrator <NUM> is, the smaller the sound pressure level of the frequency response curve is.

In some examples, the thickness of the first vibrator <NUM> is larger than the thickness of the second vibrator <NUM>. In some examples, according to the influence of the thickness on the frequency response curve, by configuring the thickness of the first vibrator <NUM> to be larger than the thickness of the second vibrator <NUM>, the sound pressure level of the frequency response curve of the first vibrator <NUM> is improved. The cooperation between the first vibrator <NUM> and the second vibrator <NUM> makes the sound pressure level of the frequency response curve balanced and consistent, such that the electronic device has a good sound quality. Moreover, the space at the edge or the corner of the body <NUM> is usually small, which is conductive to the cooperation between the first vibrator <NUM> and the second vibrator <NUM> to effectively occupy the space in the body <NUM>. The thicknesses of the first vibrator <NUM> and the second vibrator <NUM> needs to be set according to the internal space of the body <NUM>, the power consumption and the frequency response curve of the vibrator apparatus <NUM>, which is not specifically limited in the present invention.

In some examples, the bonding face <NUM> of the vibrator <NUM> has a long strip shape. Compared with a square of the same area, the frequency response curve of the vibrator <NUM> whose bonding face <NUM> has the long strip shape has a better performance.

In some examples, further as illustrated in <FIG>, the at least two vibrators <NUM> include the vibrator <NUM> with a single-layer structure and/or the vibrator <NUM> with a multi-layer structure. In some examples, for the vibrators <NUM> with the same thickness, the more the layers of the vibrator <NUM> are, the better the performance of the frequency response curve of the vibrator <NUM> is. By means of the at least two vibrators <NUM> including the vibrator <NUM> with the single-layer structure and/or the vibrator <NUM> with the multi-layer structure, in conjunction with other factors such as the thickness, the area and the shape of the bonding face <NUM> or the like, it is further conductive to the balanced and consistent performance of the frequency response curve of the vibrator apparatus <NUM>.

In some examples, the smaller the volume of the vibrator <NUM> is, the less the power consumption of the vibrator <NUM> is. That is, the smaller the area of the bonding face <NUM> and/or the thickness is, the less the power consumption of the vibrator <NUM> is. Since the at least two vibrators <NUM> have at least one of the different thicknesses and the different areas of the bonding faces <NUM>, the volumes of the at least two vibrators <NUM> are different, which provides more possibilities for flexible arrangements. Compared with a plurality of identical vibrators <NUM>, the vibrator apparatus <NUM> provided in the present invention can flexibly adjust the thickness of the vibrator <NUM>, the area of the bonding face <NUM> and the number of the vibrators <NUM>, which is conducive to reducing the power consumption.

To sum up, when the vibrator apparatus <NUM> is applied, at least one of the area and shape of the bonding face <NUM>, the thickness, the position, the number, and the structure layer number of the vibrator <NUM> can be flexibly adjusted in conjunction with the internal space of the body <NUM> of the electronic device, such that the vibrator apparatus <NUM> satisfies requirements of the balanced and consistent frequency response curve, the small occupied space, and the little power consumption, or the like, thus achieving the purposes of being used flexibly, saving the space, and saving the power consumption, which is conductive to the high integration, the miniaturized volume, the full screen of the electronic device and the holeless electronic device.

Claim 1:
An electronic device, comprising:
a body (<NUM>); and
a vibrator apparatus (<NUM>) comprising:
a plurality of vibrators (<NUM>), wherein the vibrator apparatus (<NUM>) is fixed in the body (<NUM>) of the electronic device, the plurality of vibrators (<NUM>) are separately disposed in the body (<NUM>) and configured to vibrate to generate sound, and each of the plurality of vibrators (<NUM>) comprises a bonding face (<NUM>) configured to be bonded to the body (<NUM>),
wherein two or more vibrators of the plurality of vibrators (<NUM>) have at least one of following different qualities: thicknesses, areas of the bonding face (<NUM>), or shapes of the bonding face (<NUM>),
wherein the plurality of vibrators (<NUM>) comprises a first vibrator (<NUM>) and at least two second vibrators (<NUM>), the first vibrator (<NUM>) and the at least two second vibrators (<NUM>) are separately disposed, and an area of a bonding face (<NUM>) of the first vibrator (<NUM>) is larger than an area of a bonding face (<NUM>) of at least one amongst the at least two second vibrators (<NUM>),
wherein a thickness of the first vibrator (<NUM>) is larger than a thickness of at least one amongst the at least two second vibrators (<NUM>), the thickness of each of the plurality of vibrators (<NUM>) being measured along a direction perpendicular to the bonding face (<NUM>),
wherein the body (<NUM>) comprises a housing (<NUM>), a screen display (<NUM>) disposed on a front face of the housing (<NUM>), and a space between the housing (<NUM>) and the screen display (<NUM>), wherein the vibrator apparatus (<NUM>) is mounted in the space,
wherein the at least two second vibrators (<NUM>) are disposed symmetrically around a center of gravity of the first vibrator (<NUM>),
wherein the at least two second vibrators (<NUM>) are disposed in a circular form, and
wherein the plurality of vibrators (<NUM>) of the vibrator apparatus (<NUM>) are bonded to a face of the housing (<NUM>) facing the screen display (<NUM>) and configured to drive the housing (<NUM>) to vibrate to generate sound.