Vibration Speaker

Abstract

A vibration speaker is disclosed. The vibration speaker includes: a housing; a bracket, which is accommodated in the housing and connected to the housing; a speaker module, which includes a first magnet, a first coil and a diaphragm, the first coil is connected to the diaphragm, and the diaphragm is fixed to the housing; a vibrator module, which includes a second magnet and a second coil, and the second coil is fixed to the housing; and a control module, which is configured to control the speaker module and the vibrator module, wherein both the first magnet and the second magnet are fixed to the bracket. Therefore, the structural layout space of the electronic device is saved, the cost is optimized, and the overall solution composition is simplified.

Description

Technical Field

[0001] The present invention relates to electronic equipment, and in particular to a vibration speaker. Background Art

[0002] In traditional electronic devices, speakers and vibrators are designed separately and independently of each other. However, with the trend of electronic devices becoming thinner and lighter, the space utilization of electronic devices is increasingly required. Speakers and vibrators designed separately and independently of each other occupy a large space in electronic devices, which is not conducive to achieving thinner and lighter electronic devices. In addition, speakers and vibrators designed separately and independently of each other make the assembly process of electronic devices complicated and costly. Summary of the invention

[0003] An object of the present invention is to provide a vibration speaker capable of saving the structural layout space of an electronic device.

[0004] According to one embodiment of the present invention, a vibration speaker includes: a housing; a bracket accommodated in the housing and connected to the housing; a speaker module including a first magnet, a first coil and a diaphragm, the first coil is connected to the diaphragm, and the diaphragm is fixed to the housing; a vibrator module including a second magnet and a second coil, and the second coil is fixed to the housing; and a control module configured to control the speaker module and the vibrator module, wherein both the first magnet and the second magnet are fixed to the bracket.

[0005] Optionally, the first magnet is fixed in a first space of the bracket, the second magnet is fixed in a second space of the bracket, and the first space and the second space are respectively located on two sides of the bracket.

[0006] Optionally, one of the first space and the second space is a space formed by the bracket being recessed from one side to the other side, and the other of the first space and the second space is a space surrounding the recessed portion of the bracket on the other side of the bracket. One of the first magnet and the second magnet surrounds the other of the first magnet and the second magnet, and a projection of the one of the first magnet and the second magnet on a plane parallel to the thickness direction of the bracket at least partially overlaps with a projection of the other of the first magnet and the second magnet on a plane parallel to the thickness direction of the bracket.

[0007] Optionally, the first space is a space formed by the bracket being recessed from one side to the other side, and the second space is a space surrounding the recessed portion of the bracket on the other side of the bracket. The second magnet surrounds the first magnet, and the projection of the first magnet on a plane parallel to the thickness direction of the bracket at least partially overlaps with the projection of the second magnet on a plane parallel to the thickness direction of the bracket.

[0008] Optionally, one of the first magnet and the first coil surrounds the other of the first magnet and the first coil, and one of the second magnet and the second coil surrounds the other of the second magnet and the second coil.

[0009] Optionally, the first magnet surrounds the first coil, and the second magnet surrounds the second coil.

[0010] Optionally, the speaker module also includes: a magnetic conductive component, which is surrounded by the first magnet and has a gap with the first magnet, wherein the first coil is arranged in the gap between the first magnet and the magnetic conductive component and surrounds the magnetic conductive component; a first elastic member, which is fixed to the shell and connected to the diaphragm, and provides a restoring elastic force for the diaphragm, wherein the diaphragm is connected to the shell through the first elastic member, and / or the vibrator module also includes: a counterweight, which is arranged at the edge portion of the bracket; a second elastic member, which is connected between the bracket and the shell and provides a restoring elastic force for the bracket, wherein the second elastic member includes a first elastomer and a second elastomer, the first elastomer is connected between the center portion of the bracket and the shell, so that the center portion of the bracket is connected to the shell through the first elastomer, and the second elastomer is connected between the counterweight and the shell, so that the edge portion of the bracket is connected to the shell through the second elastomer and the counterweight.

[0011] Optionally, the control module is configured to transmit a signal of a first frequency to the first coil, and transmit a signal of a second frequency lower than the first frequency to the second coil.

[0012] Optionally, the control module includes: a controller configured to output a control signal, a first switch signal, and a second switch signal; a power amplifier including a first output terminal and a second output terminal, and configured to receive the control signal and output a differential signal through the first output terminal and the second output terminal; a plurality of switches connected to the first output terminal and the second output terminal of the power amplifier; a low-pass filter component connected to the second coil and at least one of the plurality of switches. The differential signal is transmitted to the first coil through the plurality of switches in response to the first switch signal, and the differential signal is transmitted to the second coil through the plurality of switches via the low-pass filter component in response to the second switch signal.

[0013] Optionally, the plurality of switches include at least: a first switch connected between the first end of the first coil and the first output terminal of the power amplifier; a second switch connected between the first end of the second coil and the first output terminal of the power amplifier; a third switch connected between the second end of the second coil and the second output terminal of the power amplifier; and a fourth switch connected between the second end of the first coil and the second output terminal of the power amplifier. At least one of the second switch and the third switch is connected to a low-pass filter component. In response to the first switch signal, the first switch and the fourth switch are turned on, so that the differential signal is transmitted to the first coil through the first switch and the fourth switch, and in response to the second switch signal, the second switch and the third switch are turned on, so that the differential signal is transmitted to the second coil through the second switch and the third switch via the low-pass filter component.

[0014] Through the above structure, the vibration motor in the traditional electronic device can be eliminated and replaced by a vibration speaker according to the exemplary embodiment of the present disclosure, so that the speaker and the vibration motor are combined into one, saving the structural layout space of the electronic device (especially portable electronic devices), optimizing the cost, and simplifying the overall solution composition. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or other aspects of the present disclosure will become clearer and more easily understood through the following detailed description in conjunction with the accompanying drawings.

[0016] Figure 1 is a block diagram illustrating a vibration speaker according to an exemplary embodiment of the present disclosure.

[0017] Figure 2 is a detailed diagram illustrating partial components of a vibration speaker according to an exemplary embodiment of the present disclosure.

[0018] Figure 3 is a block diagram illustrating a control module according to an exemplary embodiment of the present disclosure.

[0019] Figure 4 is an example circuit diagram illustrating a filter driving circuit of a control module according to an exemplary embodiment of the present disclosure.

[0020] Figure 5 is an example circuit diagram illustrating an active low-pass driving circuit of a control module according to an exemplary embodiment of the present disclosure.

[0021] Figure 6 is an example circuit diagram illustrating an RC filter driving circuit of a control module according to an exemplary embodiment of the present disclosure.

[0022] Throughout the drawings and detailed description, unless otherwise described or provided, the same figure reference numerals will be understood to refer to the same elements, features, and structures. The drawings may not be to scale, and the relative sizes, proportions, and depictions of the elements in the drawings may be exaggerated for clarity, illustration, and convenience. DETAILED DESCRIPTION

[0023] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the method, device and / or system described herein. However, after understanding the disclosure of the application, various changes, modifications and equivalents of the method, device and / or system described herein will be clear. For example, the order of operations described herein is only an example, and is not limited to those orders set forth herein, but can be changed as it will be clear after understanding the disclosure of the application, except for the operations that must occur in a specific order. In addition, for increased clarity and conciseness, the description of features known after understanding the disclosure of the application can be omitted.

[0024] The features described herein can be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided to illustrate only some of the many possible ways to implement the methods, devices, and / or systems described herein that will be clear after understanding the disclosure of the present application.

[0025] Throughout the specification, when a component is described as being "connected to" or "coupled to" another component, the component may be directly "connected to" or "coupled to" the other component, or there may be one or more other components between them. Conversely, when an element is described as being "directly connected to" or "directly coupled to" another element, there may be no other elements between them. Similarly, similar expressions (e.g., "between" versus "immediately between" and "adjacent to" versus "immediately adjacent to") should also be interpreted in the same manner. As used herein, the term "and / or" includes any one of the relevant listed items or any combination of any two or more of the relevant listed items.

[0026] Although terms such as "first", "second" and "third" may be used to describe various components, components, regions, layers or parts herein, these components, components, regions, layers or parts are not limited by these terms. Instead, these terms are only used to distinguish one component, component, region, layer or part from another component, component, region, layer or part. Therefore, without departing from the teachings of the examples described herein, the first component, first component, first region, first layer or first part referred to in the examples may also be referred to as the second component, second component, second region, second layer or second part.

[0027] The terms used herein are only used to describe various examples and will not be used to limit the disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprise", "include" and "have" indicate the presence of the stated features, quantities, operations, components, elements and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof.

[0028] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art based on the understanding of the disclosure of the present application and the present disclosure. Unless explicitly defined as such herein, terms (such as those defined in general dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant field and the disclosure of the present application, and should not be interpreted in an idealized or overly formal way. The use of the term "may" with respect to an example or embodiment herein (e.g., with respect to what an example or embodiment may include or implement) indicates that there is at least one example or embodiment that includes or implements such a feature, and all examples are not limited thereto.

[0029] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0030] Figure 1 is a block diagram illustrating a vibration speaker according to an exemplary embodiment of the present disclosure.

[0031] A vibration speaker may be a component of an electronic device. Figure 1 , the vibration speaker 100 includes a housing 110 , a bracket 120 , a speaker module 130 , a vibrator module 140 and a control module 150 .

[0032] The housing 110 can provide support for the internal components of the vibration speaker 100 and can protect the internal components of the vibration speaker 100 from external impact. The housing 110 can be fixed to an electronic device and can be designed into various shapes as needed. For example, the housing 110 can be set at an opening to better spread sound.

[0033] The bracket 120 may be accommodated in the housing 110 and connected to the housing 110. The bracket 120 may provide support and fixation for some internal components of the vibration speaker 100, and may be directly or indirectly connected to the housing 110. The bracket 120 may be designed in various shapes as required.

[0034] The speaker module 130 is a transducer module that converts a sound electrical signal into sound. The speaker module 130 may include a first magnet, a first coil, and a diaphragm. The first coil may be connected to the diaphragm. The diaphragm may be fixed to the housing 110. The first magnet may be used to provide a first magnetic field, the first coil may be used to receive a sound electrical signal and allow the sound electrical signal to flow through, and the diaphragm may generate sound through its own vibration.

[0035] The vibrator module 140 is a transducer module that converts a vibration electrical signal into a vibration. The vibrator module 140 may include a second magnet and a second coil. The second coil may be fixed to the housing 110. The first magnet may be used to provide a second magnetic field, and the second coil may be used to receive the vibration electrical signal and allow the vibration electrical signal to flow through. In one example, the vibrator module of the vibration speaker may support wide voltage drive. That is, the vibration speaker may cooperate with a class H power amplifier chip to achieve different degrees of vibration sense under different driving voltages.

[0036] The control module 150 may be configured to control the speaker module 130 and the vibrator module 140. According to an exemplary embodiment of the present disclosure, the control module 150 may control the speaker module 130 to emit a sound corresponding to the sound electrical signal by sending the sound electrical signal to the speaker module 130. In addition, according to an exemplary embodiment of the present disclosure, the control module 150 may control the vibrator module 140 to generate a vibration corresponding to the vibration electrical signal by sending the vibration electrical signal to the vibrator module 140. Figures 3 to 6 The control module 150 is described in detail.

[0037] According to an exemplary embodiment of the present disclosure, both the first magnet and the second magnet may be fixed to the bracket 120. In this case, on the one hand, the thickness of the vibration speaker can be reduced; on the other hand, the speaker module can be used as a counterweight for the vibrator module, so that the vibration sense generated by the vibrator module can be enhanced.

[0038] According to an exemplary embodiment of the present disclosure, when the control module 150 sends a changed sound electrical signal to the speaker module 130, a first interaction force is generated between the first coil through which the changed sound electrical signal flows and the first magnet providing the first magnetic field, so that the first coil pushes the diaphragm to vibrate under the action of the generated first interaction force, thereby causing the speaker module 130 to emit a sound corresponding to the sound electrical signal. Since the first interaction force is relatively small relative to the bracket 120, the bracket 120 for fixing the first magnet itself does not vibrate due to the first interaction force.

[0039] In addition, when the control module 150 sends the changed vibration electrical signal to the vibrator module 140, a second interaction force is generated between the second coil through which the changed vibration electrical signal flows and the second magnet providing the second magnetic field, so that the second magnet vibrates under the action of the generated second interaction force, thereby causing the vibrator module 140 to generate vibrations corresponding to the vibration electrical signal. Since the second coil is fixed to the housing 110, the second coil itself does not vibrate due to the second interaction force.

[0040] Through the above structure, the vibration motor in the traditional electronic device can be eliminated and replaced by a vibration speaker according to the exemplary embodiment of the present disclosure, so that the speaker and the vibration motor are combined into one, saving the structural layout space of the electronic device (especially portable electronic devices), optimizing the cost, and simplifying the overall solution composition.

[0041] Figure 2 is a detailed diagram illustrating partial components of a vibration speaker according to an exemplary embodiment of the present disclosure.

[0042] Reference Figure 2 , the vibration speaker 200 may include a housing 210, a bracket 220, a speaker module, a vibrator module, and a control module (not shown).

[0043] The bracket 220 may have a first space 221 and a second space 222 , and the first space 221 and the second space 222 may be located at both sides of the bracket 220 , respectively.

[0044] According to an exemplary embodiment of the present disclosure, one of the first space 221 and the second space 222 may be a space formed by the bracket 220 being recessed from one side to the other side, and the other of the first space 221 and the second space 222 may be a space surrounding the recessed portion of the bracket 220 on the other side of the bracket 20. For example, in one example, Figure 2 As shown, the first space 221 can be a space for the bracket 220 to be received from one side (for example, Figure 2 from the upper side of the Figure 2 The second space 222 may be formed by a recess on the other side of the bracket 220 (for example, Figure 2 The second space 222 is a space surrounding the recessed portion of the bracket 220 (eg, the lower side of the bracket 220). However, it should be understood that the present disclosure is not limited thereto. For example, in another example, the second space 222 can be a space where the bracket 220 is recessed from one side (eg, Figure 2 from the upper side of the Figure 2 The first space 221 may be formed by a recess on the other side of the bracket 220 (for example, Figure 2The lower side of the bracket 220 is a space surrounding the recessed portion of the bracket 220. In addition, although it is described above that both the first space 221 and the second space 222 are related to the space formed by the recess, the present disclosure is not limited thereto. For example, according to another exemplary embodiment of the present disclosure, at least one of the first space 221 and the second space 222 may be unrelated to the space formed by the recess (for example, at least one of the two sides of the bracket 220 may not have a recess).

[0045] According to an exemplary embodiment of the present disclosure, a projection of one of the first space 221 and the second space 222 on a plane orthogonal to the thickness direction of the bracket 220 may surround a projection of the other of the first space 221 and the second space 222 on a plane orthogonal to the thickness direction of the bracket 220. For example, in one example, Figure 2 As shown, the projection of the first space 221 on a plane orthogonal to the thickness direction of the bracket 220 (for example, a surface parallel to the upper surface or the lower surface of the housing 210) may surround the projection of the second space 222 on a plane orthogonal to the thickness direction of the bracket 220. However, it should be understood that the present disclosure is not limited to this. For example, in another example, the projection of the second space 222 on a plane orthogonal to the thickness direction of the bracket 220 may surround the projection of the first space 221 on a plane orthogonal to the thickness direction of the bracket 220. In addition, although it is described above that the projections of the first space 221 and the second space 222 on a plane orthogonal to the thickness direction of the bracket 220 may be in a relationship of surrounding each other, the present disclosure is not limited to this. For example, according to another exemplary embodiment of the present disclosure, the projections of the first space 221 and the second space 222 on a plane orthogonal to the thickness direction of the bracket 220 may coincide with each other, or the projection of one of the first space 221 and the second space 222 on a plane orthogonal to the thickness direction of the bracket 220 may be included in the projection of the other of the first space 221 and the second space 222 on a plane orthogonal to the thickness direction of the bracket 220.

[0046] According to an exemplary embodiment of the present disclosure, a projection of one of the first space 221 and the second space 222 on a plane parallel to the thickness direction of the bracket 220 may at least partially overlap with a projection of the other of the first space 221 and the second space 222 on a plane parallel to the thickness direction of the bracket 220. For example, in one example, Figure 2As shown, the projection of the first space 221 on a plane parallel to the thickness direction of the bracket 220 (for example, a surface parallel to the left surface or the right surface of the housing 210) and the projection of the second space 222 on a plane parallel to the thickness direction of the bracket 220 may at least partially overlap. However, it should be understood that the present disclosure is not limited thereto. For example, according to another exemplary embodiment of the present disclosure, the projection of the first space 221 on a plane parallel to the thickness direction of the bracket 220 and the projection of the second space 222 on a plane parallel to the thickness direction of the bracket 220 may not overlap.

[0047] The speaker module may be used to convert an electrical signal into sound. The speaker module may include a first magnet 231, a first coil 232, and a diaphragm 233. According to an exemplary embodiment of the present disclosure, one of the first magnet 231 and the first coil 232 may surround the other of the first magnet 231 and the first coil 232. For example, in one example, Figure 2 As shown, the first magnet 231 may surround the first coil 231, that is, the projection of the first magnet 231 on a plane orthogonal to the thickness direction of the bracket 220 (for example, a surface parallel to the upper surface or the lower surface of the housing 210) may surround the projection of the first coil 232 on a plane orthogonal to the thickness direction of the bracket 220. However, it should be understood that the present disclosure is not limited to this. For example, in another example, the first coil 231 may surround the first magnet 232, that is, the projection of the first coil 232 on a plane orthogonal to the thickness direction of the bracket 220 may surround the projection of the first magnet 231 on a plane orthogonal to the thickness direction of the bracket 220.

[0048] According to an exemplary embodiment of the present disclosure, a projection of one of the first magnet 231 and the first coil 232 on a plane parallel to the thickness direction of the bracket 220 may at least partially overlap with a projection of the other of the first magnet 231 and the first coil 232 on a plane parallel to the thickness direction of the bracket 220. For example, in one example, Figure 2 As shown, the projection of the first magnet 231 on a plane parallel to the thickness direction of the bracket 220 (for example, a surface parallel to the left surface or the right surface of the housing 210) and the projection of the first coil 232 on a plane parallel to the thickness direction of the bracket 220 may at least partially overlap.

[0049] Furthermore, in one example, Figure 2As shown, the height of the first magnet 231 may be the same as the depth of the first space 221, and at least a portion of the first coil 232 may be located in the first space 221. However, it should be understood that the present disclosure is not limited thereto. For example, in another example, the height of the first magnet 231 may be different from the depth of the first space 221, and when the height of the first magnet 231 is greater than the depth of the first space 221, the first coil 232 may be entirely located outside the first space 221.

[0050] The vibrator module may convert the electrical signal into vibration. The vibrator module may include a second magnet 241 and a second coil 242. According to an exemplary embodiment of the present disclosure, one of the second magnet 241 and the second coil 242 may surround the other of the second magnet 241 and the second coil 242. For example, in one example, Figure 2 As shown, the second magnet 241 may surround the second coil 242, that is, the projection of the second magnet 241 on a plane orthogonal to the thickness direction of the bracket 220 (for example, a surface parallel to the upper surface or the lower surface of the housing 210) may surround the projection of the second coil 242 on a plane orthogonal to the thickness direction of the bracket 220. However, it should be understood that the present disclosure is not limited to this. For example, in another example, the second coil 242 may surround the second magnet 241, that is, the projection of the second coil 242 on a plane orthogonal to the thickness direction of the bracket 220 may surround the projection of the second magnet 241 on a plane orthogonal to the thickness direction of the bracket 220.

[0051] According to an exemplary embodiment of the present disclosure, a projection of one of the second magnet 241 and the second coil 242 on a plane parallel to the thickness direction of the bracket 220 may at least partially overlap with a projection of the other of the second magnet 241 and the second coil 242 on a plane parallel to the thickness direction of the bracket 220. For example, in one example, Figure 2 As shown, the projection of the second magnet 241 on a plane parallel to the thickness direction of the bracket 220 (for example, a surface parallel to the left surface or the right surface of the housing 210) and the projection of the second coil 242 on a plane parallel to the thickness direction of the bracket 220 may at least partially overlap.

[0052] Furthermore, in one example, Figure 2 As shown, the height of the second magnet 241 may be the same as the depth of the second space 222, and at least a portion of the second coil 242 may be located in the second space 222. However, it should be understood that the present disclosure is not limited thereto. For example, in another example, the height of the second magnet 241 may be different from the depth of the second space 222, and when the height of the second magnet 241 is greater than the depth of the second space 222, the second magnet 241 may be entirely located outside the second space 222.

[0053] According to an exemplary embodiment of the present disclosure, one of the first magnet 231 and the second magnet 241 may surround the other of the first magnet 241 and the second magnet 242. For example, in one example, Figure 2 As shown, the second magnet 241 may surround the first magnet 231, that is, the projection of the second magnet 241 on a plane orthogonal to the thickness direction of the bracket 220 (for example, a surface parallel to the upper surface or the lower surface of the housing 210) may surround the projection of the first magnet 231 on the plane orthogonal to the thickness direction of the bracket 220. However, it should be understood that the present disclosure is not limited to this. For example, in another example, the first magnet 231 may surround the second magnet 241, that is, the projection of the first magnet 231 on a plane orthogonal to the thickness direction of the bracket 220 may surround the projection of the second magnet 241 on a plane orthogonal to the thickness direction of the bracket 220.

[0054] According to an exemplary embodiment of the present disclosure, a projection of one of the first magnet 231 and the second magnet 241 on a plane parallel to the thickness direction of the bracket 220 may at least partially overlap with a projection of the other of the first magnet 231 and the second magnet 241 on a plane parallel to the thickness direction of the bracket 220. For example, in one example, Figure 2 As shown, the projection of the first magnet 231 on a plane parallel to the thickness direction of the bracket 220 (e.g., a surface parallel to the left surface or the right surface of the housing 210) and the projection of the second magnet 241 on a plane parallel to the thickness direction of the bracket 220 may at least partially overlap. However, it should be understood that the present disclosure is not limited to this. For example, in another example, the projection of the first magnet 231 on a plane parallel to the thickness direction of the bracket 220 and the projection of the second magnet 241 on a plane parallel to the thickness direction of the bracket 220 may not overlap.

[0055] According to an exemplary embodiment of the present disclosure, the speaker module may further include a first elastic member 234. The first elastic member 234 may be fixed to the housing 210 and connected to the diaphragm 233, and may provide a restoring elastic force for the diaphragm 233. For example, one end of the first elastic member 234 may be connected to the housing 210, and the other end of the first elastic member 234 may be connected to the diaphragm 233, so that the diaphragm 233 may be connected to the housing 210 through the first elastic member 234. In addition, in one example, the first elastic member 234 may be a folded ring, but the present disclosure is not limited thereto.

[0056] According to an exemplary embodiment of the present disclosure, the speaker module may further include a magnetic conductive component 235. The magnetic conductive component 235 may provide a magnetic circuit for the first magnetic field generated by the first magnet 231. The magnetic conductive component 235 may be surrounded by the first magnet 231 and there may be a gap between the magnetic conductive component 235 and the first magnet 231. For example, there may be a gap between the projection of the magnetic conductive component 235 on a plane orthogonal to the thickness direction of the bracket 220 (e.g., a surface parallel to the upper surface or the lower surface of the housing 210) and the projection of the first magnet 231 on a plane orthogonal to the thickness direction of the bracket 220. In this case, the first coil 232 may be disposed in the gap between the first magnet 231 and the magnetic conductive component 235 and surround the magnetic conductive component. For example, the projection of the first coil 232 on a plane orthogonal to the thickness direction of the bracket 220 (e.g., a surface parallel to the upper surface or the lower surface of the housing 210) may be located in a gap between the projection of the first magnet 231 on a plane orthogonal to the thickness direction of the bracket 220 and the projection of the magnetic conductive component 235 on a plane orthogonal to the thickness direction of the bracket 220, and the projection of the first coil 232 on a plane orthogonal to the thickness direction of the bracket 220 (e.g., a surface parallel to the upper surface or the lower surface of the housing 210) may surround the projection of the magnetic conductive component 235 on a plane orthogonal to the thickness direction of the bracket 220. In addition, in one example, the height of the magnetic conductive column 235 may be the same as or correspond to the depth of the first space, and the magnetic conductive component 235 may be columnar. However, it should be understood that the present application is not limited thereto. For example, in another example, the height of the magnetic conductive column 235 may be different from the depth of the first space, and the magnetic conductive component 235 may be other shapes besides columnar.

[0057] According to an exemplary embodiment of the present disclosure, the vibrator module may further include a weight 243 and a second elastic member 244 .

[0058] The weight 243 may be disposed at an edge portion of the bracket 220. In one example, a first side portion of the weight 243 may be disposed at an edge of the bracket 220. When the second magnet 241 is disposed at a portion aligned with an edge of the bracket 220 in the second space 222, the first side portion of the weight 243 may also be connected to the second magnet 241 aligned with the edge of the bracket 220.

[0059] The second elastic member 244 may be connected between the bracket 220 and the housing 210 and provide a reset elastic force for the bracket 220. In one example, the second elastic member 243 may include a first elastic body 245 and a second elastic body 246. The first elastic body 245 may be connected between the central portion of the bracket 220 and the housing 210, so that the central portion of the bracket 220 may be connected to the housing 210 through the first elastic body 245. In one example, the first elastic body 245 may be implemented by a metal spring. The second elastic body 246 may be connected between the counterweight 243 and the housing 210, so that the edge portion of the bracket 220 may be connected to the housing 210 through the second elastic body 246 and the counterweight 244. In one example, the first end of the second elastic body 246 may be connected to the housing 210, the second end of the second elastic body 246 may be connected to the bottom surface or the top surface of the counterweight 243, and the second elastic body 246 may be implemented by a centering spring ring. In addition, in one example, the sum of the thickness of the second elastic body 246 and the height of the weight 243 may be equal to or correspond to the sum of the thickness of the bracket 220 and the height of the second magnet 241, or the sum of the thickness of the second elastic body 246 and the height of the weight 243 may be equal to or correspond to the sum of the thickness of the bracket 220 and the depth of the second space 222. According to an exemplary embodiment of the present disclosure, since the second elastic member 244 may include two elastic bodies (i.e., the first elastic body 245 and the second elastic body 246) as a reset elastic mechanism of the vibrator module, the reset elastic force of the vibration of the vibrator module can be increased, and the vibration sense can be enhanced.

[0060] Through the above structure, both the first magnet 231 and the second magnet 241 can be fixed to the bracket 220. In this case, when the control module sends the changed sound electrical signal to the speaker module, a first interaction force is generated between the first coil 232 through which the changed sound electrical signal flows and the first magnet 231 providing the first magnetic field, so that the first coil 232 pushes the diaphragm 233 to vibrate under the action of the generated first interaction force, and the first elastic member 234 provides a restoring elastic force to the diaphragm 233, so that the speaker module emits a sound corresponding to the sound electrical signal. Since the first interaction force is relatively small relative to the bracket 220, it is not enough to deform the second elastic member 244, so the bracket 220 itself used to fix the first magnet 231 will not vibrate due to the first interaction force.

[0061] In addition, when the control module sends the changed vibration electrical signal to the vibrator module, a second interaction force is generated between the second coil 242 through which the changed vibration electrical signal flows and the second magnet 241 providing the second magnetic field, so that the second magnet 241 drives the bracket 220 and the counterweight 243 to vibrate together under the action of the generated second interaction force, so that the vibrator module generates vibrations corresponding to the vibration electrical signal, and the second elastic member 244 provides a reset elastic force for the bracket 220, making the vibration stronger. Since the second coil 242 is fixed to the housing 210, the second coil 242 itself will not vibrate due to the second interaction force.

[0062] Through the above structure, the vibration motor in the traditional electronic device can be eliminated and replaced by the vibration speaker according to the exemplary embodiment of the present disclosure, so that the speaker and the vibration motor are combined into one. In addition, the bracket 220 is designed to have different spaces, and the speaker module and the vibrator module are respectively arranged in different spaces, so that the speaker module and the vibrator module can save the structural layout space of the electronic device (especially the portable electronic device) without affecting each other, optimize the cost, and simplify the overall solution composition.

[0063] Figure 1 The description of the housing 110, the bracket 120, the first magnet 131, the first coil 132, the diaphragm 133, the second magnet 141, the second coil 142 and the control module 150 in Figure 2 The description of the housing 210, the bracket 220, the first magnet 231, the first coil 232, the diaphragm 233, the second magnet 241, the second coil 242 and the control module (not shown) are described above, and therefore repeated descriptions are omitted to avoid redundancy.

[0064] Figure 3 is a block diagram illustrating a control module according to an exemplary embodiment of the present disclosure.

[0065] Reference Figure 3 The control module 150 may include a controller 151, a power amplifier AMP, a plurality of switches SW and a low-pass filter component LPF.

[0066] The controller 151 may be configured to output a control signal CTRL, a first switch signal SWS1, and a second switch signal SWS2. The control signal CTRL may be used to generate a sound electrical signal and / or a vibration electrical signal, and may be output to a power amplifier AMP. In one example, the control signal CTRL may be an analog signal. In another example, the control signal CTRL may be an integrated circuit built-in audio bus (I2S) signal. The first switch signal SWS1 and the second switch signal SWS2 may be used to control the on and off of one of the multiple switches to realize the switching of the vibrator module and the speaker module according to the needs of the actual scene. The first switch signal SWS1 and the second switch signal SWS2 may be, for example, a general purpose input and output (GPIO) signal. The controller 151 may be implemented by a system on chip (SoC).

[0067] The power amplifier AMP may include a first output terminal OUT+ and a second output terminal OUT-, and is configured to receive a control signal CTRL and output a differential signal DS through the first output terminal OUT+ and the second output terminal OUT-. In one example, the differential signal DS may be a pulse width modulation (PWM) signal. In addition, in one example, an inductor may be provided after the first output terminal OUT+ and the second output terminal OUT- of the power amplifier AMP, thereby generating a varying current.

[0068] The plurality of switches SW may be connected between the first output terminal OUT+ and the second output terminal OUT- of the power amplifier AMP and the first coil and the second coil. In one example, the plurality of switches SW may include a first switch SW1, a second switch SW2, a third switch SW3, and a fourth switch SW4, wherein the first switch SW1 may be connected between the first end of the first coil and the first output terminal OUT+ of the power amplifier AMP, the second switch SW2 may be connected between the first end of the second coil and the first output terminal OUT+ of the power amplifier AMP, the third switch SW3 may be connected between the second end of the second coil and the second output terminal OUT- of the power amplifier AMP, and the fourth switch SW4 may be connected between the second end of the first coil and the second output terminal OUT- of the power amplifier AMP. However, it should be understood that the present disclosure is not limited thereto.

[0069] The low-pass filter component LPF may be connected to the second coil and at least one of the plurality of switches SW. For example, the low-pass filter component LPF may be connected to at least one of the second switch SW2 and the third switch SW3. In one example, the low-pass filter component LPF may include a first low-pass filter LPF1 and a second low-pass filter LFP2, wherein the first low-pass filter LPF1 may be connected between the first output terminal OUT+ of the power amplifier AMP and the first end of the second coil, and the second low-pass filter LFP21 may be connected between the second output terminal OUT- of the power amplifier AMP and the second end of the second coil. However, it should be understood that the present disclosure is not limited thereto.

[0070] According to the above configuration, the differential signal DS may be transmitted to the first coil through a plurality of switches SW in response to the first switch signal SWS1, and the differential signal DS may be transmitted to the second coil through a plurality of switches SW via a low-pass filter component LPF in response to the second switch signal SWS2. In one example, the first switch SW1 and the fourth switch SW4 may jointly control the power supply of the first coil of the speaker module. For example, in response to the first switch signal SWS1, the first switch SW1 and the fourth switch SW4 may be turned on so that the differential signal DS may be transmitted to the first coil through the first switch SW and the fourth switch SW4. In addition, in one example, the second switch SW2 and the third switch SW3 may jointly control the power supply of the second coil of the vibrator module. For example, in response to the second switch signal SWS2, the second switch SW2 and the third switch SW3 may be turned on so that the differential signal DS may be transmitted to the second coil through the second switch SW2 and the third switch SW3 via a low-pass filter component LPF.

[0071] According to an exemplary embodiment of the present disclosure, the frequency of the vibration electric signal may correspond to the resonant frequency of the vibrator module in the vibration speaker, and the frequency of the sound electric signal may be greater than the frequency of the vibration electric signal. Therefore, the control module 150 may be configured to transmit a signal of a first frequency (e.g., a high-frequency signal) to the first coil, and transmit a signal of a second frequency lower than the first frequency (e.g., a low-frequency signal) to the second coil.

[0072] For example, in one example, Figure 3As shown, the controller 151 may output a control signal CTRL corresponding to the sound electrical signal, a first switch signal SWS1 corresponding to turning on the first switch SW1 and the fourth switch SW4, and a second switch signal SWS2 corresponding to turning off the second switch SW2 and the third switch SW3. In this case, the power amplifier AMP may output a differential signal DS corresponding to the sound electrical signal in response to receiving the control signal CTRL corresponding to the sound electrical signal, the first switch SW1 and the fourth switch SW4 may be turned on in response to the first switch signal SWS1 corresponding to turning on the first switch SW1 and the fourth switch SW4, and the second switch SW2 and the third switch SW3 may be turned off in response to the second switch signal SWS2 corresponding to turning off the second switch SW2 and the third switch SW3, so that the differential signal DS corresponding to the sound electrical signal is transmitted to the first coil but not to the second coil, so that the speaker module can emit a sound corresponding to the sound electrical signal.

[0073] For example, in one example, Figure 3 As shown, the controller 151 may output a control signal CTRL corresponding to the vibration electrical signal, a first switch signal SWS1 corresponding to disconnecting the first switch SW1 and the fourth switch SW4, and a second switch signal SWS2 corresponding to connecting the second switch SW2 and the third switch SW3. In this case, the power amplifier AMP may output a differential signal DS corresponding to the vibration electrical signal in response to receiving the control signal CTRL corresponding to the vibration electrical signal, the first switch SW1 and the fourth switch SW4 may be disconnected in response to the first switch signal SWS1 corresponding to disconnecting the first switch SW1 and the fourth switch SW4, and the second switch SW2 and the third switch SW3 may be connected in response to the second switch signal SWS2 corresponding to connecting the second switch SW2 and the third switch SW3, so that the differential signal DS corresponding to the vibration electrical signal is transmitted to the second coil instead of the first coil, so that the vibrator module may generate vibration corresponding to the vibration electrical signal.

[0074] For example, in one example, Figure 3As shown, the controller 151 may output a control signal CTRL corresponding to both the sound electric signal and the vibration electric signal, a first switch signal SWS1 corresponding to turning on the first switch SW1 and the fourth switch SW4, and a second switch signal SWS2 corresponding to turning on the second switch SW2 and the third switch SW3. In this case, the power amplifier AMP may output a differential signal DS corresponding to both the sound electric signal and the vibration electric signal in response to receiving the control signal CTRL corresponding to both the sound electric signal and the vibration electric signal, the first switch SW1 and the fourth switch SW4 may be turned on in response to the first switch signal SWS1 corresponding to turning on the first switch SW1 and the fourth switch SW4, and the second switch SW2 and the third switch SW3 may be turned on in response to the second switch signal SWS2 corresponding to turning on the second switch SW2 and the third switch SW3. According to the above configuration, the component corresponding to the sound electric signal in the differential signal DS (for example, the component corresponding to the first frequency) is transmitted to the first coil, so that the speaker module can emit the sound corresponding to the sound electric signal; the component corresponding to the vibration electric signal in the differential signal DS (for example, the component corresponding to the second frequency lower than the first frequency) is transmitted to the second coil, so that the vibrator module can generate the vibration corresponding to the vibration electric signal. Since a low-pass filter component is provided between the power amplifier AMP and the second coil, the component corresponding to the sound electric signal in the differential signal DS (for example, the component corresponding to the first frequency) will not be transmitted to the second coil, so that the vibrator module will not be affected by the high-frequency sound electric signal. In addition, although the component corresponding to the vibration electric signal in the differential signal DS (for example, the component corresponding to the second frequency lower than the first frequency) will be transmitted to the first coil, the speaker module will not be significantly affected by the low-frequency vibration electric signal.

[0075] However, although Figure 3 Only a low-pass filter component is shown between the power amplifier AMP and the second coil, but the present disclosure is not limited to this. For example, a high-pass filter component may also be provided between the power amplifier AMP and the first coil to eliminate the influence of low-frequency vibration electrical signals on the speaker module.

[0076] Figure 4 is an example circuit diagram illustrating a filter driving circuit of a control module according to an exemplary embodiment of the present disclosure. Figure 5 is an example circuit diagram illustrating an active low-pass driving circuit of a control module according to an exemplary embodiment of the present disclosure. Figure 6 is an example circuit diagram showing an RC filter driving circuit of a control module according to an exemplary embodiment of the present disclosure. Figures 4 to 6 In FIG. 1 , the signal Amplifer_OUT+ and the signal Amplifer_OUT− represent the differential signal DS output by the power amplifier, and VCC represents the power supply voltage.

[0077] Reference Figure 3 and Figure 4 The filter driving circuit of the control module may include first to fourth switches SW1 to SW4, transistors Q5 and Q6, resistors R1 to R6, inductors L1 and L2, and capacitors C1 and C2.

[0078] The signal SW_Audio may be controlled by the other of the first switching signal SWS1 and the second switching signal SWS2 , and the signal SW1_G based on the signal SW_Audio may control the base of the transistor Q6 .

[0079] When the input signal SW_Audio is at a high level, transistor Q6 is turned on and outputs signal SW1_G, thereby turning on the first switch SW1 and the fourth switch SW4, and the first coil (for example, the voice coil) is powered; conversely, when the input signal SW_Audio is at a low level, the first coil (for example, the voice coil) will not be powered.

[0080] The signal SW_Motor can be controlled by one of the first switch signal SWS1 and the second switch signal SWS2, and the signal SW3_G based on the signal SW_Motor can control the base of the transistor Q5. When the input signal SW_Motor is at a high level, the transistor Q5 can be turned on and output the signal SW3_G, so that the second switch SW2 and the third switch SW3 are turned on, and the second coil (for example, the vibration coil) is powered; conversely, when the input signal SW_Motor is at a low level, the second coil (for example, the vibration coil) will not be powered.

[0081] The switching of the signal SW_Motor and the signal SW_Audio can achieve the switching between vibration and sound using the same PWM signal (eg, the signal Amplifer_OUT+ and the signal Amplifer_OUT-).

[0082] exist Figure 4 In the example, an LC low-pass filter composed of an inductor L1 and a capacitor C1 and an LC low-pass filter composed of an inductor L2 and a capacitor C2 can be used as low-pass filtering components. However, it should be understood that there may be other circuit models for low-pass filters, and alternative solutions such as Figure 5 and Figure 6 For example, in Figure 5 In the example, an active low-pass filter composed of a resistor R7, a resistor R8, a capacitor C1 and an operational amplifier U1A and an active low-pass filter composed of a resistor R9, a resistor R10, a capacitor C2 and an operational amplifier U1B can be used as low-pass filtering components. For example, in Figure 6In the embodiment, an RC low-pass filter composed of a resistor R7 and a capacitor C1 and an RC low-pass filter composed of a resistor R8 and a capacitor C2 can be used as low-pass filtering components.

[0083] As described above, since the low-pass filter component is provided, it is ensured that the operation of the vibrator module is not affected by higher frequency signals (eg, sound signals).

[0084] According to the disclosed embodiment, the vibration motor in the traditional electronic device can be eliminated and replaced by the vibration speaker according to the exemplary embodiment of the present disclosure, so that the speaker and the vibration motor are combined into one, saving the structural layout space of the electronic device (especially the portable electronic device), optimizing the cost, and simplifying the overall solution composition. In addition, in the vibrator module of the vibration speaker, the present disclosure adopts a linear vibrator module structure, so the vibration sense is stronger than the vibration sense of the piezoelectric vibrator. In addition, in the driving circuit scheme, the present disclosure uses a class H power amplifier to drive the speaker module and the vibrator module at the same time. The vibrator module cooperates with the class H power amplifier to achieve adjustable vibration frequency and waveform, which can meet the requirements for vibration sense in different scenes. In addition, the vibration speaker of the present disclosure achieves high-quality sound quality and controllable vibration sense in multiple scenes with the least components, and can achieve the speaker and vibrator working separately, and can also achieve the vibration motor to produce a "follow-vibration" effect with the song of the speaker, enhancing the dynamic sense of low-frequency sound.

[0085] While the invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the claims.

Claims

1. A vibration speaker, comprising: shell; a bracket, housed in the housing and connected to the housing; A speaker module comprises a first magnet, a first coil and a diaphragm, wherein the first coil is connected to the diaphragm, and the diaphragm is connected to the housing; a vibrator module including a second magnet and a second coil, the second coil being fixed to the housing; a control module configured to control the speaker module and the vibrator module, wherein both the first magnet and the second magnet are fixed to the bracket, The first magnet is fixed in the first space of the bracket, the second magnet is fixed in the second space of the bracket, and the first space and the second space are respectively located on both sides of the bracket. One of the first space and the second space is a space formed by the bracket being recessed from one side to the other side, and the other of the first space and the second space is a space surrounding the recessed portion of the bracket on the other side of the bracket. wherein the first magnet surrounds the first coil, The control module is configured to transmit a signal of a first frequency to the first coil, and transmit a signal of a second frequency lower than the first frequency to the second coil, The control module includes: A controller configured to output a control signal, a first switch signal, and a second switch signal; a power amplifier including a first output terminal and a second output terminal and configured to receive a control signal and output a differential signal through the first output terminal and the second output terminal; a plurality of switches connected to the first output terminal and the second output terminal of the power amplifier; a low pass filter component connected to the second coil and at least one switch of the plurality of switches, wherein the differential signal is transmitted to the first coil through the plurality of switches in response to the first switch signal, and the differential signal is transmitted to the second coil through the plurality of switches via the low-pass filter component in response to the second switch signal, Wherein, the plurality of switches at least include: A first switch connected between a first end of the first coil and a first output terminal of the power amplifier; a second switch connected between the first end of the second coil and the first output terminal of the power amplifier; a third switch connected between the second end of the second coil and the second output terminal of the power amplifier; a fourth switch connected between the second end of the first coil and the second output terminal of the power amplifier, wherein at least one of the second switch and the third switch is connected to a low pass filter component, In which, in response to the first switch signal, the first switch and the fourth switch are turned on, so that the differential signal is transmitted to the first coil through the first switch and the fourth switch, and in response to the second switch signal, the second switch and the third switch are turned on, so that the differential signal is transmitted to the second coil through the second switch and the third switch via the low-pass filtering component.

2. The vibration speaker according to claim 1, in, One of the first magnet and the second magnet surrounds the other of the first magnet and the second magnet, and a projection of the one of the first magnet and the second magnet on a plane parallel to the thickness direction of the bracket at least partially overlaps with a projection of the other of the first magnet and the second magnet on a plane parallel to the thickness direction of the bracket.

3. The vibration speaker according to claim 2, wherein: The first space is a space formed by the bracket being recessed from one side to the other side, and the second space is a space surrounding the recessed portion of the bracket on the other side of the bracket. The second magnet surrounds the first magnet, and a projection of the first magnet on a plane parallel to the thickness direction of the bracket at least partially overlaps with a projection of the second magnet on a plane parallel to the thickness direction of the bracket.

4. The vibration speaker according to claim 1, wherein: One of the second magnet and the second coil surrounds the other of the second magnet and the second coil.

5. The vibration speaker according to claim 4, wherein: The second magnet surrounds the second coil.

6. The vibration speaker according to claim 1, wherein: The speaker module also includes: A magnetic conductive component is surrounded by the first magnet and has a gap between the first magnet and the magnetic conductive component, wherein the first coil is arranged in the gap between the first magnet and the magnetic conductive component and surrounds the magnetic conductive component; A first elastic member is fixed to the housing and connected to the diaphragm, and provides a restoring elastic force for the diaphragm, wherein the diaphragm is connected to the housing through the first elastic member, and / or The vibrator module further comprises: A counterweight is arranged at an edge portion of the bracket; A second elastic member is connected between the bracket and the shell and provides a restoring elastic force for the bracket, wherein the second elastic member includes a first elastomer and a second elastomer, the first elastomer is connected between the central part of the bracket and the shell, so that the central part of the bracket is connected to the shell through the first elastomer, and the second elastomer is connected between the counterweight and the shell, so that the edge part of the bracket is connected to the shell through the second elastomer and the counterweight.

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