A speaker and electronic device

Abstract

This application provides a loudspeaker and an electronic device, relating to the field of terminal technology. The loudspeaker includes: a loudspeaker body; a diaphragm disposed on the loudspeaker body; a central washer disposed within the loudspeaker body and located below the diaphragm; and at least one pressure sensor disposed on the central washer and located between the diaphragm and the central washer, with a predetermined distance between the upper part of the pressure sensor and the bottom of the diaphragm. The pressure sensor is used to generate an electrical signal when the diaphragm is compressed by an external force and deforms. Thus, by combining the loudspeaker with the pressure sensor, the purpose of depth detection using the loudspeaker is achieved.

Description

Technical Field

[0001] This application relates to the field of terminal technology, and more particularly to a speaker and electronic device. Background Technology

[0002] With the rise of the wearable product market in recent years, users have increasingly higher demands for wearable products, especially expecting them to be usable in various environments, such as daily handwashing, showering, swimming, and diving activities. For water-related applications, especially diving, depth gauge functionality is needed to measure and monitor underwater depth, providing timely alerts and risk warnings to users. Therefore, making electronic devices easy to measure underwater depth is a pressing technical problem that needs to be solved. Summary of the Invention

[0003] To address the aforementioned technical problems, this application provides a loudspeaker and an electronic device. The technical solution provided by this application integrates a loudspeaker and a depth gauge into one unit, improving the convenience of the electronic device in measuring water depth and providing a better user experience.

[0004] In a first aspect, embodiments of this application provide a loudspeaker, comprising: a loudspeaker body; a diaphragm disposed on the loudspeaker body; a center washer disposed within the loudspeaker body and located below the diaphragm; and at least one pressure sensor disposed on the center washer and located between the diaphragm and the center washer, with a predetermined distance between the upper part of the pressure sensor and the bottom of the diaphragm; wherein the pressure sensor is used to generate an electrical signal when the diaphragm is compressed and deformed by an external force. Thus, by combining the loudspeaker with the pressure sensor, the pressure sensor can sense the magnitude of the external pressure when the diaphragm of the loudspeaker is subjected to external pressure, thereby achieving the purpose of depth detection using the loudspeaker.

[0005] In one possible implementation, a first groove is provided on the upper part of the central washer, and a pressure sensor is disposed in the first groove; wherein, when there are multiple pressure sensors, all multiple pressure sensors are disposed in the first groove. This achieves the purpose of placing pressure sensors on the central washer.

[0006] In one possible implementation, the shape of the first groove is the same as the shape of the upper surface of the central washer.

[0007] In one possible implementation, when there are multiple pressure sensors, the multiple pressure sensors are arranged at intervals and all are embedded in the central washer.

[0008] In one possible implementation, a buffer layer is provided on the upper part of the central washer, and the thickness of the buffer layer is less than or equal to the thickness of the pressure sensor in the direction of the central washer toward the diaphragm. This protects the diaphragm from damage by the pressure sensor.

[0009] In one possible implementation, the speaker further includes a signal cable, wherein a first end of the signal cable is connected to a pressure sensor, and a second end of the signal cable extends through a first channel within the speaker body to the outside of the speaker body. For example, the first channel may be... Figure 1 Cable channel 17 is shown.

[0010] In one possible implementation, the loudspeaker further includes: a central magnet disposed within the loudspeaker body and located below the central washer; a back steel plate disposed at the bottom of the loudspeaker body and located below the central magnet; the first channel includes: a first sub-channel located on the central washer; a second sub-channel located on the central magnet; and a third sub-channel located on the back steel plate. Exemplarily, the first sub-channel may be... Figure 4 The second sub-channel shown in the diagram can be channel a. Figure 4 The third sub-channel shown in the diagram can be channel b. Figure 4 Channel c is shown in the diagram.

[0011] In one possible implementation, a first sub-channel extends from the top of the central washer to the bottom of the central washer; a second sub-channel extends from the top of the central magnet to the bottom of the central magnet; and a third sub-channel extends from the top of the back steel plate to the bottom of the back steel plate. For example, the first sub-channel could be... Figure 4 The second sub-channel shown in the diagram can be channel a. Figure 4 The third sub-channel shown in the diagram can be channel b. Figure 4 Channel c is shown in the diagram.

[0012] Furthermore, the first sub-channel is located inside or on the side of the central washer, the second sub-channel is located inside or on the side of the central magnet, and the third sub-channel is located inside the back steel plate. For example, the first sub-channel could be... Figure 4 The second sub-channel shown in the diagram can be channel a. Figure 4 The third sub-channel shown in the diagram can be channel b. Figure 4 Channel c is shown in the diagram.

[0013] In one possible implementation, a first sub-channel extends from the top of the central washer to the bottom of the central washer; a second sub-channel extends from the top of the central magnet to the bottom of the central magnet; and a third sub-channel extends from the top of the back steel plate to the side of the back steel plate. For example, the first sub-channel could be... Figure 5 The second sub-channel shown in the diagram can be channel a. Figure 5 The third sub-channel shown in the diagram can be channel b. Figure 5 Channel c is shown in the diagram.

[0014] Furthermore, the first sub-channel is located inside or on the side of the central washer, the second sub-channel is located inside or on the side of the central magnet, and the third sub-channel is located inside or on top of the back steel plate. For example, the first sub-channel could be... Figure 5 The second sub-channel shown in the diagram can be channel a. Figure 5 The third sub-channel shown in the diagram can be channel b. Figure 5 Channel c is shown in the diagram.

[0015] In one possible implementation, a connection point is provided on the speaker body, and the second end of the signal line is connected to the connection point.

[0016] In one possible implementation, the pressure sensor is one or more of the following: a piezoelectric pressure sensor, a piezoresistive pressure sensor, or a capacitive pressure sensor.

[0017] Secondly, embodiments of this application provide an electronic device, including a speaker as provided in the first aspect. For example, the electronic device may be a watch, bracelet, mobile phone, etc. Attached Figure Description

[0018] The accompanying drawings used in the description of the embodiments or prior art are briefly introduced below.

[0019] Figure 1 This is a schematic diagram of a portion of the structure of a loudspeaker provided in an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the arrangement of a pressure sensor provided in an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the arrangement of a pressure sensor provided in an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of a cable channel arrangement provided in an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of a cable channel arrangement provided in an embodiment of this application;

[0024] Figure 6 This is a schematic diagram illustrating the deformation of a loudspeaker diaphragm under external pressure, as provided in an embodiment of this application.

[0025] Figure 7 This is a schematic diagram of a portion of the structure of a loudspeaker provided in an embodiment of this application.

[0026] Legend:

[0027] 11 – Speaker body; 12 – Diaphragm; 13 – Center washer; 14 – Pressure sensor; 15 – Center magnet; 16 – Back steel plate; 17 – Cable channel; 131 – Buffer layer;

[0028] 21 - Front cover; 22 - Span frame; 23 - Side washer; 24 - Side magnet; 25 - Voice coil. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings.

[0030] In the description of the embodiments of this application, the words "exemplary," "for example," or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplary," "for example," or "for instance" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the words "exemplary," "for example," or "for instance" is intended to present the relevant concepts in a specific manner.

[0031] In the description of the embodiments of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, B existing alone, or A and B existing simultaneously. Furthermore, unless otherwise stated, the term "multiple" means two or more. For example, multiple systems refer to two or more systems, and multiple screen terminals refer to two or more screen terminals. The terms "upper," "lower," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. The terms “including,” “comprising,” “having,” and variations thereof all mean “including but not limited to,” unless otherwise specifically emphasized.

[0032] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "linking" should be interpreted broadly, for example, they can be fixed connections, detachable connections, abutting connections, or integral connections; those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] For example, in order to measure underwater depth using electronic devices, a depth detection device (such as a depth sensor) can be installed on the electronic device to measure the underwater depth. The principle behind the depth detection device is as follows: when the depth detection device is subjected to external water pressure, the volume of gas or liquid in its internal cavity will change due to compression. A pressure sensor placed inside the device measures this internal pressure change, and by correlating the pressure sensor data with the water depth data, the water depth data can be obtained.

[0034] However, installing depth sensors on electronic devices usually requires physical openings in the device's casing, increasing the risk of water damage and taking up space. Furthermore, some components of depth detection devices (such as the sensing membrane) are often exposed, making them susceptible to dirt clogging or corrosion (e.g., from sweat).

[0035] To facilitate underwater depth measurement in electronic devices and avoid physical openings in the device's casing, this application provides a loudspeaker and an electronic device. The loudspeaker provided in this application has a pressure sensor internally. When pressure is applied to the diaphragm of the loudspeaker by a liquid or gas, the pressure sensor can detect the applied pressure and determine depth or height data, etc., based on the pressure value detected by the pressure sensor.

[0036] For example, Figure 1 A schematic diagram of a loudspeaker structure is shown. Figure 1 As shown, the loudspeaker includes: a loudspeaker body 11, a diaphragm 12, a center washer 13, a pressure sensor 14, a center magnet 15, and a back steel plate 16.

[0037] A diaphragm 12 is disposed on the speaker body 11. A center washer 13 is disposed inside the speaker body 11 and located below the diaphragm 12. A pressure sensor 14 is disposed on the center washer 13 and located between the diaphragm 12 and the center washer 13. A center magnet 15 is disposed inside the speaker body 11 and located below the center washer 13. A back steel plate 16 is disposed at the bottom of the speaker body 11 and located below the center magnet 15.

[0038] The pressure sensor 14 can be positioned at a predetermined distance from the bottom of the diaphragm 12 to allow for movement of the diaphragm 12, enabling it to move up and down above the center washer 13 when the speaker is in operation. When the diaphragm 12 is compressed and deformed by external force, the pressure sensor 14 is compressed by the diaphragm 12 and generates an electrical signal, thereby obtaining the external pressure on the speaker.

[0039] A signal line (not shown) and a cable channel 17 are also provided in the speaker body 11. One end of the signal line is connected to the pressure sensor 14, and the other end extends through the cable channel 17 to the outside of the speaker body 11. For example, a connection point (not shown) may be provided on the speaker body 11, and the end of the signal line away from the pressure sensor may be connected to the connection point.

[0040] For example, there may be one or more pressure sensors 14. The pressure sensor 14 may be attached to the center washer 13. The center washer 13 may be attached to the center magnet 15. The center magnet 15 may be attached to the back steel plate 16.

[0041] For example, consider the arrangement of pressure sensor 14 on the central washer 13. (e.g.) Figure 2 As shown in (A), the upper surface of the central washer 13 can be a plane, and the pressure sensor 14 can be directly mounted on the central washer 13.

[0042] like Figure 2 As shown in (B), a groove may be provided on the upper part of the central washer 13, and a pressure sensor 14 may be disposed in the groove. When there are multiple pressure sensors 14, all of the pressure sensors 14 are disposed in the groove. In addition, the distance from the upper surface of the pressure sensor 14 to the groove may be greater than or equal to the depth of the groove, so that the diaphragm 12 can press against the pressure sensor 14 when it is squeezed. For example, the shape of the groove may be the same as or similar to the shape of the upper surface of the central washer 13.

[0043] like Figure 2 As shown in (C) and (D), when there are multiple pressure sensors 14, the multiple pressure sensors 14 can be arranged at intervals and all embedded in the central washer 13. The upper surface of the pressure sensor 14 can be flush with the upper surface of the central washer 13 or higher than the upper surface of the central washer 13.

[0044] For example, to prevent the pressure sensor 14 from damaging the diaphragm 12 when it presses against it, a buffer layer (not shown in the figure) can be provided on the upper part of the central washer 13. The thickness of this buffer layer can be less than or equal to the thickness of the pressure sensor 14. This buffer layer increases the contact area of ​​the diaphragm 12 when it contacts the pressure sensor 14, thereby preventing damage to the diaphragm 12 from the pressure sensor 14. For example, the buffer layer can be made of a non-conductive material, such as plastic.

[0045] For example, such as Figure 3 As shown in (A), when the area of ​​the upper surface of the pressure sensor 14 is small, the diaphragm 12 can be regarded as contacting a point when it contacts the pressure sensor 14. Since the pressure sensor 14 has a certain thickness, during the process from contacting the pressure sensor 14 to contacting the center washer 13, only the position where the diaphragm 12 contacts the pressure sensor 14 is subjected to force, while other positions cannot be subjected to force. At this time, the diaphragm 12 is easily scratched by the pressure sensor 14 and thus damaged.

[0046] like Figure 3 As shown in (B), when a buffer layer 131 is provided on the central washer 13, the diaphragm 12 can be considered to be in contact with a surface when it contacts the pressure sensor 14. At this time, the bottom of the diaphragm 12 is subjected to relatively uniform force as it moves toward the central washer 13, and therefore is not easily damaged.

[0047] For example, cable channel 17 may include channel a, channel b, and channel c. Channel a is located on the central washer 13. Channel b is located on the central magnet 15. Channel c is located on the back steel plate 16.

[0048] As one possible implementation, such as Figure 4 As shown in (A) and (B), channel a can extend from the top of the central washer 13 to the bottom of the central washer 13. Channel b can extend from the top of the central magnet 15 to the bottom of the central magnet 15. Channel c can extend from the top of the back steel plate 16 to the bottom of the back steel plate 16.

[0049] Among them, such as Figure 4 As shown in (A), channel a can be located inside the central washer 13, channel b can be located inside the central magnet 15, and channel c can be located inside the back steel plate 16. In this case, channel a can be a through hole on the central washer 13, channel b can be a through hole on the central magnet 15, and channel c can be a through hole on the back steel plate 16.

[0050] In addition, such as Figure 4As shown in (B), channel a can be located on the side of the central washer 13, channel b can be located on the side of the central magnet 15, and channel c can be located inside the back steel plate. In this case, channel a can be a strip groove on the side of the central washer 13, channel b can be a strip groove on the side of the central magnet 15, and channel c can be a through hole on the back steel plate 16.

[0051] As another possible implementation, such as Figure 5 As shown in (A) and (B), channel a can extend from the top of the central washer 13 to the bottom of the central washer 13. Channel b can extend from the top of the central magnet 15 to the bottom of the central magnet 15. Channel c can extend from the top of the back steel plate 16 to the side of the back steel plate 16.

[0052] Among them, such as Figure 5 As shown in (A), channel a can be located inside the central washer 13, channel b can be located inside the central magnet 15, and channel c can be located inside the back steel plate. In this case, channel a can be a through hole on the central washer 13, channel b can be a through hole on the central magnet 15, and channel c can be a through hole on the back steel plate 16.

[0053] In addition, such as Figure 5 As shown in (B), channel a can be located on the side of the central washer 13, channel b can be located on the side of the central magnet 15, and channel c can be located on the upper part of the back steel plate. In this case, channel a can be a strip groove on the side of the central washer 13, channel b can be a strip groove on the side of the central magnet 15, and channel c can be a strip groove on the back steel plate 16.

[0054] It is understandable that there are many variations of the forms of channels a, b, and c, which will not be elaborated here.

[0055] For example, the pressure sensor 14 is one or more of the following: a piezoelectric pressure sensor, a piezoresistive pressure sensor, or a capacitive pressure sensor.

[0056] For example, using a diving scenario, the principle of measuring water depth using this speaker is described.

[0057] like Figure 6 As shown in (A), when the speaker is in a normal environment, at rest or in operation, the diaphragm 12 in the speaker will not touch the pressure sensor 14.

[0058] like Figure 6As shown in (B), when the speaker is submerged in liquid, the liquid applies pressure to the diaphragm 12, causing the diaphragm 12 to deform and move towards the pressure sensor 14, eventually contacting it. The pressure sensor 14 generates different electrical signals depending on the pressure exerted by the diaphragm 12. By converting the electrical signal generated by the pressure sensor 14 into a corresponding depth value, the depth of the speaker can be obtained.

[0059] For example, in addition to the components described above, the speaker may include, as Figure 7 As shown, the loudspeaker may also include a front cover 21, a frame 22, a side washer 23, a side magnet 24, and a voice coil 25, etc.

[0060] The front cover 21 can be placed on the speaker body 11 to fix the diaphragm 12. The frame 22 can support some or all of the components in the speaker, such as the vibrating component, voice coil 25, etc. The side washer 23 can conduct magnetism to the side magnet 24 to uniformly distribute magnetic lines of force. The side magnet 24 can provide magnetic force. The voice coil 25 is a coil in the speaker through which current flows. Exemplarily, the side magnet 24 is disposed on the back steel plate 16, and the side washer 23 is disposed on the side magnet 24, wherein both the side magnet 24 and the side washer 23 can be fixed to the frame 22.

[0061] It should be understood that the speaker provided in this application embodiment integrates the speaker and depth gauge components into one, saving the need for separate depth gauge devices and reducing the stacking space of depth gauge-related structures. Furthermore, it eliminates the need for physical openings in the overall structural shell, reducing the waterproof interface and lowering the risk to the overall waterproof reliability of the device. Since the speaker diaphragm is waterproof, and the depth measuring component is located inside the diaphragm, external corrosion can be avoided.

[0062] Based on the speaker described in the above embodiments, this solution also provides an electronic device. This electronic device may include the speaker described in the above embodiments. For example, the electronic device may be a watch, bracelet, mobile phone, etc.

[0063] For example, the electronic device may include a processor electrically connected to signal lines in the speaker. This design allows the electrical signal generated by the pressure sensor in the speaker to be input to the processor, enabling the processor to convert the electrical signal generated by the pressure sensor into a depth value, obtain the corresponding depth value, and output the depth value.

[0064] For example, the electronic device may include a display screen that can display depth values. For example, the electronic device may also output depth values ​​via voice announcement. For example, the electronic device may also include a communication module through which it can send depth values ​​to other electronic devices for display on those devices.

[0065] For example, a communication module on an electronic device may include at least one of a mobile communication module and a wireless communication module. When the communication module includes a mobile communication module, it can provide wireless communication solutions for applications on the electronic device, including 2G / 3G / 4G / 5G. Examples include Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Time Division Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), and New Radio (NR).

[0066] The communication module may include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc. The communication module can receive electromagnetic waves through at least one antenna, filter and amplify the received electromagnetic waves, and transmit them to a modem for demodulation. The communication module can also amplify the signal modulated by the modem and radiate it as electromagnetic waves through the antenna. In some examples, at least some functional modules of the communication module may be located in the processor. In some examples, at least some functional modules of the communication module may be located in the same device as at least some modules of the processor. When the communication module includes a wireless communication module, the communication module can provide solutions for wireless communication applications in electronic devices, including wireless local area networks (WLANs) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared (IR), etc. Communication module 26 may be one or more devices integrating at least one communication processing module. The communication module receives electromagnetic waves via an antenna, modulates and filters the electromagnetic wave signals, and then sends the processed signals to the processor. The communication module can also receive signals to be transmitted from the processor, modulate and amplify them, and then transmit them as electromagnetic waves via the antenna.

[0067] It is understood that specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples in the description of this specification.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A loudspeaker, characterized by include: Speaker body; A diaphragm is disposed on the speaker body; The central washer is located inside the speaker body and on the lower side of the diaphragm; At least one pressure sensor is disposed on the central washer and located between the diaphragm and the central washer, with a predetermined distance between the upper part of the pressure sensor and the bottom of the diaphragm; wherein, when the diaphragm is squeezed and deformed by an external force of an external medium, the diaphragm comes into contact with the pressure sensor, and the pressure sensor is used to be squeezed by the diaphragm and generate an electrical signal; The electrical signal is used to measure the position of the loudspeaker in the external medium.

2. The loudspeaker of claim 1, wherein, The upper part of the central washer is provided with a first groove, and the pressure sensor is disposed in the first groove; When there are multiple pressure sensors, all of the pressure sensors are disposed in the first groove.

3. The loudspeaker of claim 2, wherein, The shape of the first groove is the same as the shape of the upper surface of the central washer.

4. The loudspeaker of claim 1, wherein, When there are multiple pressure sensors, the multiple pressure sensors are arranged at intervals and all are embedded in the central washer.

5. The loudspeaker of any of claims 1-4, wherein, A buffer layer is provided on the upper part of the central washer, and the thickness of the buffer layer is less than or equal to the thickness of the pressure sensor in the direction of the central washer toward the diaphragm.

6. The loudspeaker of any of claims 1-5, wherein, Also includes: The signal line has a first end connected to the pressure sensor and a second end extending through a first channel inside the speaker body to the outside of the speaker body.

7. The loudspeaker of claim 6, wherein, The speaker also includes: A central magnet is disposed inside the speaker body and located below the central washer; A back steel plate is provided at the bottom of the speaker body and located below the central magnet; The first channel includes: The first sub-channel is located on the central washer. The second sub-channel is located on the central magnet; The third sub-channel is located on the back steel plate.

8. The loudspeaker according to claim 7, characterized in that, The first sub-channel extends from the top of the central washer to the bottom of the central washer; The second sub-channel extends from the top of the central magnet to the bottom of the central magnet; The third sub-channel extends from the top of the back steel sheet to the bottom of the back steel sheet.

9. The loudspeaker of claim 8, wherein, The first sub-channel is located inside or on the side of the central washer, the second sub-channel is located inside or on the side of the central magnet, and the third sub-channel is located inside the back steel plate.

10. The loudspeaker according to claim 7, characterized in that, The first sub-channel extends from the top of the central washer to the bottom of the central washer; The second sub-channel extends from the top of the central magnet to the bottom of the central magnet; The third sub-channel extends from the top of the back steel plate to the side of the back steel plate.

11. The loudspeaker of claim 10, wherein, The first sub-channel is located inside or on the side of the central washer, the second sub-channel is located inside or on the side of the central magnet, and the third sub-channel is located inside or on top of the back steel plate.

12. The loudspeaker of any of claims 6-11, wherein, The speaker body is provided with a connection point, and the second end of the signal line is connected to the connection point.

13. The loudspeaker of any of claims 1-12, wherein, The pressure sensor is one or more of the following: a piezoelectric pressure sensor, a piezoresistive pressure sensor, or a capacitive pressure sensor.

14. An electronic device, comprising: Includes the loudspeaker as described in any one of claims 1-13.

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