Electronic device
Through innovative design of the speaker and screen components, the sound outlet is eliminated, and the diaphragm vibration conducts audio through the screen, solving the problems of the sound outlet affecting aesthetics and waterproofing, and achieving a high level of aesthetics and waterproof performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING XIAOMI MOBILE SOFTWARE CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-05
AI Technical Summary
The design of the sound outlet in existing electronic devices affects aesthetics and makes it easy for dust and moisture to enter, leading to a decline in audio performance.
The speaker assembly uses a diaphragm that faces the screen assembly, with the bezel sealing the cavity between them. The diaphragm vibration transmits audio through the screen assembly, eliminating the need for a sound outlet.
It improves the aesthetics and waterproofing of electronic devices while maintaining audio playback quality.
Smart Images

Figure CN224329580U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of electronic technology, and in particular to an electronic device. Background Technology
[0002] Currently, the audio performance of electronic devices such as tablets is receiving increasing attention from users and has become an indispensable selling point at product launches. Since sound propagates by objects pushing air, electronic devices typically have multiple sound vents on their frame to connect to speakers. However, the design of these sound vents affects the aesthetics of the device, and external dust and moisture can easily enter through them, impacting audio performance. Utility Model Content
[0003] In view of this, the present disclosure provides an electronic device that maintains the audio performance of the device without eliminating the sound outlet.
[0004] Specifically, the following technical solutions are included:
[0005] This disclosure provides an electronic device, including a mid-frame, a speaker assembly, and a screen assembly;
[0006] The mid-frame includes a bracket and a border, the screen assembly covers one side of the bracket and is connected to the border, and the speaker assembly is located between the bracket and the screen assembly;
[0007] The speaker assembly includes a speaker core, the diaphragm of the speaker core being opposite the screen assembly, and the bezel being configured to close the cavity between the screen assembly and the diaphragm.
[0008] In some embodiments of this disclosure, the speaker assembly further includes a housing, the speaker core portion being located within the housing, the housing being located on the side of the speaker assembly remote from the screen assembly.
[0009] In some embodiments of this disclosure, the loudspeaker assembly includes a plurality of loudspeaker cores, each loudspeaker core partially located within the housing, and the plurality of loudspeaker cores are arranged in an array within the housing.
[0010] In some embodiments of this disclosure, the housing is provided with an isolation wall that divides the housing into a first cavity and a second cavity, the first cavity being used to accommodate at least one of the speaker cores and the second cavity being used to accommodate at least one of the speaker cores.
[0011] In some embodiments of this disclosure, the housing is provided with an isolation wall that divides the housing into multiple receiving cavities, each of which is used to receive one of the speaker cores.
[0012] In some embodiments of this disclosure, the bracket has a battery compartment, and the housing is fixedly disposed within the battery compartment.
[0013] In some embodiments of this disclosure, the electronic device further includes a battery assembly that is ring-shaped, located within the battery compartment, and arranged around the speaker assembly.
[0014] In some embodiments of this disclosure, the electronic device further includes a limiting member located between the bracket and the screen assembly, and the housing is clamped between the limiting member and the bracket.
[0015] In some embodiments of this disclosure, the limiting member is provided with an opening region that is opposite to the diaphragm of the speaker core.
[0016] In some embodiments of this disclosure, the electronic device further includes a piezoelectric sheet bonded to the side of the screen assembly near the support.
[0017] The beneficial effects of the technical solutions provided in this disclosure include at least the following:
[0018] In the electronic device provided in this embodiment, the diaphragm of the speaker assembly is close to the screen assembly, and the frame can seal the cavity between the screen assembly and the diaphragm. When the electronic device emits sound, the vibration of the diaphragm can be conducted to the outside of the electronic device through the screen assembly, meeting the requirements for audio playback. Since there is no sound outlet hole communicating with the diaphragm on the frame, the overall appearance of the middle frame is more complete, improving the aesthetics of the electronic device. Moreover, external dust and liquids are less likely to enter the interior of the electronic device through the sound outlet hole, which helps to improve the waterproof performance of the electronic device. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 A partial cross-sectional view of an electronic device provided in an embodiment of this disclosure;
[0021] Figure 2A partial schematic diagram of an electronic device provided in an embodiment of this disclosure;
[0022] Figure 3 A schematic diagram of a speaker assembly provided in an embodiment of this disclosure;
[0023] Figure 4 A schematic diagram of another speaker assembly provided in an embodiment of this disclosure;
[0024] Figure 5 A schematic diagram of yet another speaker assembly provided in an embodiment of this disclosure;
[0025] Figure 6 A schematic diagram of yet another speaker assembly provided in an embodiment of this disclosure;
[0026] Figure 7 This is a schematic diagram of a screen assembly provided in an embodiment of this disclosure.
[0027] The reference numerals in the figure are respectively:
[0028] 1-Mid-frame; 2-Speaker assembly; 3-Screen assembly; 4-Limiting component; 5-Piezoelectric sheet; 6-Colloid; 7-Battery assembly;
[0029] 101-Bracket; 102-Frame; 103-Battery compartment; 201-Speaker core; 202-Housing shell; 203-Isolation wall; 204-First cavity; 205-Second cavity; 206-Receiving cavity; 207-Third cavity; 401-Opening area; 2011-Diaphragm.
[0030] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0031] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.
[0032] Figure 1 A partial cross-sectional view of an electronic device provided in an embodiment of this disclosure. (See attached image.) Figure 1As shown, the electronic device includes a mid-frame 1, a speaker assembly 2, and a screen assembly 3; the mid-frame 1 includes a bracket 101 and a frame 102, the screen assembly 3 covers one side of the bracket 101 and is connected to the frame 102, the speaker assembly 2 is located between the bracket 101 and the screen assembly 3; the speaker assembly 2 includes a speaker core 201, the diaphragm 2011 of the speaker core 201 is opposite to the screen assembly 3, and the frame 102 is configured to close the cavity between the screen assembly 3 and the diaphragm 2011.
[0033] In the electronic device provided in this embodiment, the diaphragm 2011 of the speaker assembly 2 is close to the screen assembly 3, and the frame 102 can seal the cavity between the screen assembly 3 and the diaphragm 2011. When the electronic device emits sound, the vibration of the diaphragm 2011 can be conducted to the outside of the electronic device through the screen assembly 3, satisfying the requirements of the electronic device for playing audio. Since there is no sound outlet hole on the frame 102 communicating with the diaphragm 2011, the overall appearance of the middle frame 1 is more complete, improving the aesthetics of the electronic device. Moreover, it is difficult for external dust and liquids to enter the interior of the electronic device through the sound outlet hole, which helps to improve the waterproof performance of the electronic device.
[0034] To make the technical solutions and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.
[0035] like Figure 1 As shown, the electronic device provided in this disclosure includes a mid-frame 1, a speaker assembly 2, and a screen assembly 3. The screen assembly 3 is located on one side of the mid-frame 1 and covers the mid-frame 1. The speaker assembly 2 is located within the cavity formed by the mid-frame 1 and the screen assembly 3. The mid-frame 1 includes a bracket 101 and a frame 102. The frame 102 is connected to the edge of the bracket 101. The edge area of the screen assembly 3 is sealed to the frame 102. The speaker assembly 2 is fixed to the bracket 101, and there is a certain distance between the speaker assembly 2 and the screen assembly 3. The speaker assembly 2 includes a speaker core 201, and the diaphragm 2011 of the speaker core 201 is opposite to the screen assembly 3. When the electronic device emits sound, the vibration of the diaphragm 2011 can be conducted to the outside of the electronic device through the screen assembly 3, thereby realizing the function of playing audio. Since the frame 102 can seal the cavity between the screen assembly 3 and the speaker assembly 2, and no sound outlet is provided on the frame 102, the structure of the mid-frame 1 can be optimized, avoiding the need for openings on the frame 102, reducing the processing steps of the mid-frame 1, and making the electronic device more aesthetically pleasing. Furthermore, external dust and liquids will not enter the electronic device through the sound outlet, which helps improve the waterproof performance of the electronic device.
[0036] In some embodiments of this disclosure, such as Figure 1As shown, the speaker assembly 2 also includes a housing 202, with the speaker core 201 partially located inside the housing 202. The housing 202 is located on the side of the speaker assembly 2 furthest from the screen assembly 3. The housing 202 has a hollow structure inside, which can balance the air pressure on both sides of the diaphragm 2011 when the diaphragm 2011 vibrates, allowing the diaphragm 2011 to vibrate at a larger amplitude, thus ensuring the volume of the speaker assembly 2.
[0037] In some embodiments of this disclosure, such as Figure 1 As shown, the electronic device also includes a limiting member 4, which is located between the bracket 101 and the screen assembly 3, and the housing 202 is sandwiched between the limiting member 4 and the bracket 101. The main body of the limiting member 4 is a flat plate structure and is arranged parallel to the bracket 101. The two opposite sides of the limiting member 4 are connected to the bracket 101 and the screen assembly 3 respectively, thereby fixing the housing 202 to the bracket 101.
[0038] Optionally, see Figure 1 The limiting member 4 is provided with an opening area 401, which is opposite to the diaphragm 2011 of the speaker core 201. The shape and size of the opening area 401 can be matched with the size of the diaphragm 2011. The opening area 401 is used to provide vibration space for the diaphragm 2011 and facilitates the transmission of the vibration of the diaphragm 2011 to the screen assembly 3 through the air.
[0039] Figure 2 This is a partial schematic diagram of an electronic device provided according to an embodiment of the present disclosure. In some embodiments of the present disclosure, such as... Figure 2 As shown, the bracket 101 has a battery compartment 103, and the housing 202 is fixedly installed inside the battery compartment 103. The speaker assembly 2 is installed inside the battery compartment 103, which is located in the middle area of the middle frame 1. This facilitates the optimization of the arrangement of various components on the middle frame 1, and the speaker assembly 2 can transmit sound through the screen assembly 3 without having to be close to the frame 102, allowing for a larger battery compartment 103 to be installed on the bracket 101.
[0040] In some embodiments of this disclosure, such as Figure 2 As shown, the electronic device also includes a battery assembly 7, which is ring-shaped and located within the battery compartment 103, surrounding the speaker assembly 2. The battery assembly 7 may employ laminated cells, which can be arranged in a ring shape to accommodate the arrangement of the speaker assembly 2.
[0041] Figure 3 This is a schematic diagram of a speaker assembly provided for an embodiment of this disclosure. In some embodiments of this disclosure, such as... Figure 3As shown, the speaker assembly 2 includes a plurality of speaker cores 201, each speaker core 201 being partially located within a housing 202, and the plurality of speaker cores 201 being arranged in an array within the housing 202. For example, four speaker cores 201 are disposed within the housing 202, and the four speaker cores 201 are respectively located at the four corners of the housing 202.
[0042] Optionally, such as Figure 3 As shown, a partition wall 203 is provided inside the housing 202, dividing the housing 202 into multiple receiving cavities 206, each of which is used to accommodate a speaker core 201. The partition wall 203 can separate the space inside the housing 202, so that the spaces where the speaker cores 201 are located are separated from each other. When the four speaker cores 201 play audio at the same time, the amplitude of the diaphragm 2011 of each speaker core 201 may be inconsistent. The partition wall 203 can prevent the four speaker cores 201 from interfering with each other, thus ensuring the audio playback effect.
[0043] Figure 4 This is a schematic diagram of another speaker assembly provided for an embodiment of this disclosure. In some embodiments of this disclosure, such as... Figure 4 As shown, the partition wall 203 divides the housing 202 into a first cavity 204 and a second cavity 205. The first cavity 204 is used to accommodate at least one speaker core 201, and the second cavity 205 is used to accommodate at least one speaker core 201. For example, two speaker cores 201 are disposed in the first cavity 204, and two speaker cores 201 are disposed in the second cavity 205.
[0044] Figure 5 This is a schematic diagram of yet another speaker assembly provided as an embodiment of the present disclosure. In some embodiments of the present disclosure, such as... Figure 5 As shown, the partition wall 203 divides the housing 202 into a first cavity 204, a second cavity 205, and a third cavity 207. The first cavity 204 is used to accommodate at least one speaker core 201, the second cavity 205 is used to accommodate at least one speaker core 201, and the third cavity 207 is used to accommodate at least one speaker core 201. For example, one speaker core 201 is disposed in the first cavity 204, one speaker core 201 is disposed in the second cavity 205, and two speaker cores 201 are disposed in the third cavity 207.
[0045] Figure 6 This is a schematic diagram of another speaker assembly provided according to an embodiment of the present disclosure. In some embodiments of the present disclosure, such as... Figure 6As shown, the isolation wall 203 divides the housing 202 into a first cavity 204 and a second cavity 205. The first cavity 204 contains a speaker core 201, and the second cavity 205 contains three speaker cores 201.
[0046] It should be noted that, Figure 3-6 The speaker assembly 2 shown in the embodiment can also have various arrangement forms, which are related to the number of speaker cores 201 and the specific structure of the housing 202. These are not listed one by one in this disclosure. It is only necessary to make the speaker assembly 2 able to meet the audio playback requirements of the electronic device.
[0047] Figure 7 This is a schematic diagram of a screen assembly provided in an embodiment of this disclosure. In some embodiments of this disclosure, such as... Figure 7 As shown, the electronic device also includes a piezoelectric sheet 5, which is bonded to the side of the screen assembly 3 near the bracket 101. Specifically, the piezoelectric sheet 5 is bonded to the screen assembly 3 via an adhesive 6. The piezoelectric sheet 5 can be a ceramic piezoelectric sheet, and the bonding position between the piezoelectric sheet 5 and the screen assembly 3 can be adjusted according to the desired sound field and loudness. The piezoelectric sheet 5 is electrically connected to the driver chip of the electronic device, and the driver chip is electrically connected to the processor. The processor sends audio waves, which are amplified by an amplifier and then sent to the piezoelectric sheet 5, causing the piezoelectric sheet 5 to vibrate due to the piezoelectric effect. Since the piezoelectric sheet 5 is bonded to the screen assembly 3, it can drive the screen assembly 3 to vibrate, which in turn causes the air to vibrate, producing sound.
[0048] It should be noted that the speaker assembly 2 provided in this embodiment can be used as a low-frequency sound generating unit, and the piezoelectric sheet 5 can be used as a high-frequency sound generating unit. The piezoelectric sheet 5 is lightweight and thin, and has good high-frequency performance, making it suitable as a high-frequency sound generating unit.
[0049] It should be noted that the electronic device provided in this disclosure embodiment may be, but is not limited to, a remote control, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III), an MP4 player (Moving Picture Experts Group Audio Layer IV), or a laptop computer. This electronic device may also be referred to as a user device, a portable terminal, a laptop terminal, or other names.
[0050] It should be noted that in this article, "several" and "at least one" refer to one or more, while "multiple" and "at least two" refer to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0051] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.
[0052] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0053] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this disclosure.
[0054] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of this disclosure.
[0055] The above description is merely an embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.
Claims
1. An electronic device, characterized in that, It includes a mid-frame (1), a speaker assembly (2), and a screen assembly (3); The middle frame (1) includes a bracket (101) and a frame (102). The screen assembly (3) covers one side of the bracket (101) and is connected to the frame (102). The speaker assembly (2) is located between the bracket (101) and the screen assembly (3). The speaker assembly (2) includes a speaker core (201) with a diaphragm (2011) opposite to the screen assembly (3), and the bezel (102) is configured to close the cavity between the screen assembly (3) and the diaphragm (2011).
2. The electronic device according to claim 1, characterized in that, The speaker assembly (2) further includes a housing (202), the speaker core (201) is partially located within the housing (202), and the housing (202) is located on the side of the speaker assembly (2) away from the screen assembly (3).
3. The electronic device according to claim 2, characterized in that, The loudspeaker assembly (2) includes a plurality of loudspeaker cores (201), each of the loudspeaker cores (201) being partially located within the housing (202), and the plurality of loudspeaker cores (201) being arranged in an array within the housing (202).
4. The electronic device according to claim 3, characterized in that, An isolation wall (203) is provided inside the housing (202), the isolation wall (203) divides the housing (202) into a first cavity (204) and a second cavity (205), the first cavity (204) is used to accommodate at least one of the speaker cores (201), and the second cavity (205) is used to accommodate at least one of the speaker cores (201).
5. The electronic device according to claim 3, characterized in that, The housing (202) is provided with an isolation wall (203) that divides the housing (202) into a plurality of receiving cavities (206), each of the receiving cavities (206) being used to receive one of the speaker cores (201).
6. The electronic device according to claim 2, characterized in that, The bracket (101) has a battery compartment (103), and the housing (202) is fixedly disposed inside the battery compartment (103).
7. The electronic device according to claim 6, characterized in that, It also includes a battery assembly (7), which is ring-shaped and located inside the battery compartment (103), and is arranged around the speaker assembly (2).
8. The electronic device according to claim 2, characterized in that, It also includes a limiting member (4) located between the bracket (101) and the screen assembly (3), and the housing (202) is sandwiched between the limiting member (4) and the bracket (101).
9. The electronic device according to claim 8, characterized in that, The limiting member (4) is provided with an opening area (401), which is opposite to the diaphragm (2011) of the speaker core (201).
10. The electronic device according to claim 9, characterized in that, It also includes a piezoelectric sheet (5) which is bonded to the side of the screen assembly (3) near the bracket (101).