Electronic device

Abstract

Embodiments of the present application provide an electronic device. The electronic device comprises a first shell and a loudspeaker. The first shell is provided with a recess, and a side wall of the recess is provided with a sound hole, the sound hole being in communication with the recess and an outside of the electronic device. The loudspeaker comprises a frame and a sound unit. The frame is located in the recess and is in sealed connection with the first shell. The frame comprises a circumferential side wall and a bearing wall. The circumferential side wall comprises a first part and a second part, the first part and the second part being connected and surrounding an annular space, and the first part being arranged opposite the sound hole. The bearing wall is located on a side of the frame facing a bottom wall of the recess, and the bearing wall is protruding from an inner side surface of the second part. The sound unit is located in the annular space and is in connection with the bearing wall, and a circumferential edge of the sound unit is in sealed connection with the frame. The first shell, the frame and the sound unit participate in surrounding a front sound cavity of the loudspeaker, and the front sound cavity is in communication with the sound hole. The embodiments of the present application can reduce the thickness of the loudspeaker and the electronic device, guarantee the acoustic performance of the loudspeaker, and be beneficial to sound emission.

Description

Technical Field

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

[0002] With technological advancements and changes in consumer aesthetics and usage habits, electronic devices such as mobile phones and tablets are trending towards thinner and lighter designs. This trend towards thinner and lighter devices necessitates a reduction in speaker thickness. However, thinning speakers compresses the maximum amplitude of the diaphragm and limits the acoustic cavity volume, impacting the speaker's acoustic performance. Therefore, balancing speaker thinness and acoustic performance presents a significant challenge. Utility Model Content

[0003] This application provides an electronic device that enables the thinning of a loudspeaker while maintaining its acoustic performance.

[0004] In a first aspect, embodiments of this application provide an electronic device. The electronic device includes a first housing and a speaker. The first housing has a groove, and the sidewall of the groove has a sound outlet, which communicates with the outside of the electronic device. The speaker includes a frame and a sound-emitting unit. The frame is located in the groove and is sealed to the first housing. The frame includes a peripheral sidewall and a support wall. The peripheral sidewall includes a first part and a second part, which are connected to form an annular space, and the first part is arranged opposite to the sound outlet. The support wall is located on the side of the frame facing the bottom wall of the groove, and protrudes from the inner side of the second part. The sound-emitting unit is located in the annular space and is connected to the support wall, and the periphery of the sound-emitting unit is sealed to the frame. The first housing, the frame, and the sound-emitting unit together form the front acoustic cavity of the speaker, which communicates with the sound outlet.

[0005] In conventional designs, loudspeakers have front and rear covers. Due to limitations in the thickness of the front and rear covers, the vibration space of the front acoustic cavity, and the magnetic circuit under the requirement of large amplitude, it is difficult to meet the space requirements of ultra-thin devices (e.g., less than 5mm thick); furthermore, the thinning of electronic devices reduces the volume of the front and rear acoustic cavities, leading to a decrease in the acoustic performance of the loudspeaker.

[0006] In this embodiment, the speaker does not require a front cover, reducing its overall thickness and thus facilitating thinner electronic devices. Furthermore, the diaphragm of the sound-generating unit directly forms the front acoustic cavity with the first housing and frame, allowing the thickness of the front cover in conventional solutions to compensate for the height and vibration space of the front acoustic cavity. This increases the diaphragm amplitude, thereby increasing the maximum linear displacement (Xmax) and improving the speaker's acoustic performance and sound quality. The maximum linear displacement is a key parameter for evaluating speaker unit performance, referring to the maximum distance the voice coil can maintain a linear response when moving unidirectionally within the magnetic gap. Exceeding this range results in significant distortion, and the maximum linear displacement is limited by the space of the front acoustic cavity. Additionally, the first part of the frame opposite the sound outlet lacks a support wall, while the second part has one. This ensures good mechanical support for the sound-generating unit and prevents the frame from obstructing the sound outlet, facilitating sound transmission from the sound-generating unit to the electronic device (hereinafter referred to as sound output). Therefore, the solution in this embodiment reduces the thickness of the speaker and electronic device while maintaining the speaker's acoustic performance and improving sound output.

[0007] In one implementation of the first aspect, the surface where the sound hole faces the opening in the groove is called the opening surface, and the outer surface of the first part includes a first sub-surface, which is an inclined surface, and there is a gap between the first sub-surface and the opening surface.

[0008] In this implementation, there is a gap between the first sub-face of the frame and the opening face of the sound outlet. In other words, the first sub-face of the frame and the opening face of the sound outlet are not in contact. This design can avoid the peripheral sidewall of the frame from partially blocking the sound outlet, making the sound outlet channel more unobstructed and conducive to sound output.

[0009] In one implementation of the first aspect, the opening face is not parallel to the first sub-face.

[0010] In this implementation, the first sub-face of the frame is not parallel to the opening face of the sound outlet, which allows the first sub-face of the frame to be tilted relative to the opening face into the groove. This increases the distance between the frame edge and the opening face and structurally reduces the risk of the first sub-face of the frame fitting into the opening face. Therefore, it can further prevent the frame from blocking the sound outlet, making the sound outlet channel more unobstructed and beneficial for sound output.

[0011] In one implementation of the first aspect, the outer surface of the second part includes a second sub-surface, which is an inclined surface and is parallel to and connected to the opening surface.

[0012] In this implementation, both the second sub-face of the frame and the opening face of the sound outlet are designed as inclined planes, parallel to each other and connected. This parallel inclined plane connection provides a constraint on the spatial orientation of the first sub-face of the frame relative to the opening face, helping to form and maintain a relatively stable gap between the first sub-face and the opening face. The gap between the first sub-face and the opening face formed by this design can effectively reduce the risk of the frame blocking the sound outlet, thus providing a smoother sound wave radiation path and facilitating sound output.

[0013] In one implementation of the first aspect, the supporting wall has a stepped structure, and the supporting wall and the sound generating unit are connected by a colloid seal, with the colloid filling the space between the surface of the stepped structure and the sound generating unit.

[0014] In this implementation, a sealed connection is achieved between the supporting wall and the sound-generating unit through a filling adhesive. This seals the gap between the sound-generating unit and the supporting wall of the frame, effectively isolating the front acoustic cavity formed by the first housing, the sound-generating unit, and the frame from the rear acoustic cavity of the speaker. This prevents acoustic short-circuiting of the sound-generating unit and enhances the acoustic performance of the speaker. Acoustic short-circuiting of the sound-generating unit refers to the phenomenon where sound waves with opposite phases generated before and after the sound-generating unit diffract and cancel each other out when not effectively isolated, resulting in severe attenuation of low-frequency effects.

[0015] In one implementation of the first aspect, a boss is provided on the inner side of the first part. The distance from the side of the boss facing the bottom wall of the groove to the bottom wall of the groove is greater than the distance from the side of the bearing wall facing the bottom wall of the groove to the bottom wall of the groove. The sound-generating unit and the boss do not overlap in the thickness direction of the bottom wall of the groove. The peripheral sidewall and the sound-generating unit are connected by a glue seal, and the glue fills the space between the boss and the sound-generating unit.

[0016] In this implementation, the peripheral sidewall and the sound-generating unit are sealed together by filling with colloid, which can block the connection gap between the sound-generating unit and the peripheral sidewall of the frame. This helps to isolate the front acoustic cavity formed by the first housing, the sound-generating unit and the frame from the rear acoustic cavity of the speaker, thereby preventing acoustic short circuit of the sound-generating unit and enhancing the acoustic performance of the speaker.

[0017] In this implementation, the sound-generating unit and the boss do not overlap in the thickness direction of the bottom wall. The distance from the side of the boss facing the bottom wall of the groove to the bottom wall of the groove is greater than the distance from the side of the supporting wall facing the bottom wall of the groove to the bottom wall. This arrangement can further reduce the obstruction of the sound outlet by the frame, which is beneficial to sound output.

[0018] In one implementation of the first aspect, the side of the frame facing the bottom wall of the groove is sealed to the first housing through a first sealing structure, the first sealing structure participating in the formation of the front sound cavity.

[0019] In this implementation, the frame is sealed to the first housing through the first sealing structure, which can block the connection gap between the frame and the first housing. This helps to isolate the front acoustic cavity formed by the first housing, the sound generating unit and the frame from the rear acoustic cavity of the speaker, thereby preventing acoustic short circuit of the sound generating unit and enhancing the acoustic performance of the speaker.

[0020] In one implementation of the first aspect, the electronic device further includes a second housing, which is sealed to the first housing. The opening of the groove faces the second housing. The second housing, the first housing, the frame, and the sound-emitting unit together form the rear acoustic cavity of the speaker, which is isolated from the front acoustic cavity.

[0021] In this implementation, the second housing is sealed to the first housing, allowing them to enclose an inner cavity and providing waterproofing and dustproofing for the electronic device. The speaker does not require a rear cover, further reducing its overall thickness and making the electronic device thinner and lighter. Furthermore, the entire space except for the front acoustic cavity can be used to form the rear acoustic cavity; this design can be called an open rear cavity design. This open rear cavity design expands the rear acoustic cavity space, which helps enhance the speaker's low-frequency performance, enabling high volume, stereo sound effects, and improving the speaker's sound quality.

[0022] In this implementation, the front acoustic cavity faces away from the second housing, and the rear acoustic cavity faces the second housing, which can meet the corresponding product requirements.

[0023] In one implementation of the first aspect, the bottom wall of the groove has a through hole. The electronic device also includes a display module and a second sealing structure, the display module and the second housing are respectively located on opposite sides of the first housing, the second sealing structure seals the display module and the first housing, and the second sealing structure surrounds the outer periphery of the through hole. The display module, the second sealing structure, the first housing, the frame and the sound unit together constitute the front sound cavity.

[0024] In this implementation, a through hole is opened in the bottom wall of the groove of the first housing. The front sound cavity of the sound unit can utilize the thickness of the first housing and the gap between the first housing and the display module in the thickness direction. Compared with the design where no through hole is opened in the bottom wall of the groove, the diaphragm of the sound unit can be designed to be closer to the first housing or the display module. This allows the gap between the sound unit and the second housing in the thickness direction to be designed to be smaller, which is beneficial for further thinning of electronic devices.

[0025] In one implementation of the first aspect, the electronic device further includes a display module, which is fixed to the first housing. The opening of the groove faces the display module. The display module, the first housing, and the frame sound unit together form the rear acoustic cavity of the speaker, which is isolated from the front acoustic cavity.

[0026] In this implementation, the speaker does not require a rear cover, further reducing the overall thickness of the speaker and making the electronic device thinner and lighter. Furthermore, the entire space except for the front acoustic chamber can be used to form the rear acoustic chamber; this design can be called an open rear acoustic chamber design. This open rear acoustic chamber design expands the space of the rear acoustic chamber, which is beneficial for enhancing the speaker's low-frequency performance, achieving high volume, stereo sound effects, and improving the speaker's sound quality.

[0027] In this implementation, the front acoustic cavity faces away from the display module, and the rear acoustic cavity faces the display module, which can meet the corresponding product requirements.

[0028] In one implementation of the first aspect, the bottom wall of the groove has a through hole. The electronic device also includes a second housing and a third sealing structure, with the display module and the second housing located on opposite sides of the first housing, and the third sealing structure sealingly connecting the second housing and the first housing, surrounding the outer periphery of the through hole. The second housing, the third sealing structure, the first housing, the frame, and the sound-emitting unit together constitute the front sound cavity.

[0029] In this implementation, a through hole is opened in the bottom wall of the groove of the first housing. The front sound cavity of the sound unit can utilize the thickness of the first housing and the gap in the thickness direction between the first housing and the second housing. Compared with the design where no through hole is opened in the bottom wall of the groove, the diaphragm of the sound unit can be designed to be closer to the first housing or the second housing. This allows the gap in the thickness direction between the sound unit and the display module to be designed to be smaller, which is beneficial for further thinning of electronic devices. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural schematic diagram of an electronic device in one embodiment;

[0031] Figure 2 yes Figure 1 A three-dimensional structural diagram of an electronic device from another perspective;

[0032] Figure 3 This is a three-dimensional structural schematic diagram of an electronic device in another embodiment;

[0033] Figure 4 This is a three-dimensional structural schematic diagram of an electronic device in another embodiment;

[0034] Figure 5 yes Figure 1 A schematic diagram of the exploded structure of electronic devices in the diagram;

[0035] Figure 6 yes Figure 5 A three-dimensional structural diagram of the first shell in the middle;

[0036] Figure 7 for Figure 6A three-dimensional structural diagram of the first shell from another perspective;

[0037] Figure 8 for Figure 7 A partially enlarged schematic diagram of point B in the first shell;

[0038] Figure 9 This is a schematic diagram of the three-dimensional structure of a loudspeaker;

[0039] Figure 10 for Figure 9 A schematic diagram of the exploded structure of the loudspeaker in the image;

[0040] Figure 11 for Figure 10 A schematic diagram of the three-dimensional structure of the frame in the diagram;

[0041] Figure 12 This is a schematic diagram of the assembly structure of the sound-generating unit and the frame.

[0042] Figure 13 for Figure 12 A cross-sectional view of the sound-generating unit and the frame.

[0043] Figure 14 This is a schematic diagram of the assembly structure of the speaker and the first housing;

[0044] Figure 15 for Figure 1 A schematic diagram of the AA cross-sectional structure of the electronic equipment in the diagram;

[0045] Figure 16 for Figure 15 A magnified schematic diagram of point D of the electronic device in the diagram;

[0046] Figure 17 This is an exploded view of an electronic device in another embodiment;

[0047] Figure 18 for Figure 17 A three-dimensional structural diagram of the first shell in the middle;

[0048] Figure 19 for Figure 18 A structural schematic diagram of the first shell from another perspective;

[0049] Figure 20 for Figure 19 A magnified view of part E in the diagram;

[0050] Figure 21 This is a schematic diagram of the assembly structure of the speaker and the first housing;

[0051] Figure 22 for Figure 17 A cross-sectional view of the electronic equipment in the diagram;

[0052] Figure 23 for Figure 22 An enlarged schematic diagram of point F of the electronic device in the diagram. Detailed Implementation

[0053] This application provides an electronic device, including but not limited to mobile phones (candybar phones or foldable phones), tablet computers, laptop computers, smart screen devices, wearable devices (smartwatches, smart bracelets, headphones, etc.), augmented reality (AR) glasses, AR helmets, virtual reality (VR) glasses, VR helmets, personal digital assistants (PDAs), and other devices with voice-generating functions.

[0054] In this embodiment of the application, the electronic device may be a non-foldable electronic device (such as a candybar phone, tablet computer, or smart screen device) or a foldable electronic device (such as a foldable phone).

[0055] The basic structures of electronic devices in several embodiments of this application will be illustrated below.

[0056] Figure 1 and Figure 2 An electronic device 1 in one embodiment is illustrated. Electronic device 1 may be, for example, a non-foldable electronic device, such as a candybar phone. For ease of illustration, an XYZ coordinate system can be defined, where the Z-axis direction is the thickness direction of electronic device 1.

[0057] Combination Figure 1 and Figure 2 As shown, the electronic device 1 may include a display module 2, a first housing 3, and a second housing 4. The display module 2 may be fixed to one side of the first housing 3, and the second housing 4 may be fixed to the other side of the first housing 3. The first housing 3 may also be referred to as the middle frame 3, and the second housing 4 may also be referred to as the rear housing 4. The first housing 3 and the second housing 4 may be collectively referred to as the housing.

[0058] It is understood that the electronic device 1 includes a first housing 3 and a second housing 4, which is only an illustrative example and not a limitation on the embodiments of this application. In another embodiment, the electronic device 1 may have more housings or fewer housings.

[0059] In this embodiment, the display surface 2a of the display module 2 can be exposed outside the housing to display an image. The display module can also be called a screen or display screen. In another embodiment, the electronic device 1 may not have a display module 2.

[0060] In this embodiment, the middle frame 3 can be used to install and fix components inside the electronic device 1, such as speakers, batteries, circuit boards, and buttons (including power on / off buttons and volume buttons). The middle frame 3 is provided with a sound outlet, and the speaker is installed inside the electronic device 1 at a position communicating with the sound outlet, thereby allowing the sound emitted by the speaker to be transmitted to the outside of the electronic device 1 through the sound outlet.

[0061] Combination Figure 1 and Figure 2 As shown, the sound outlet 31 can be located on one side of the middle frame 3, for example, it can be located along the length of the electronic device 1 of the middle frame 3 (e.g., along the length of the electronic device 1). Figure 1 One of the two opposite sides (in the Y direction). There can be multiple sound holes 31, for example, which can be located along the width direction of the electronic device 1 (e.g., along the width direction). Figure 1 The X-axis (in the middle) is arranged in sequence at intervals.

[0062] Understandable, Figures 1-2 The position, number, and arrangement of the sound outlet holes 31 shown are merely illustrative examples and are not intended to limit the embodiments of this application. For example, in another embodiment, there may be at least one sound outlet hole 31, and the sound outlet hole 31 may be located on one or more sides of the middle frame 3, or the sound outlet hole 31 may be located at other positions on the middle frame 3 that meet the product requirements.

[0063] Figure 3 Another embodiment of an electronic device 1 is illustrated. Electronic device 1 can be, for example, a foldable electronic device, such as a foldable mobile phone. This foldable mobile phone can be folded into two layers, and therefore can be called a double-folding phone or a bi-folding phone.

[0064] like Figure 3 As shown, the electronic device 1 may include a display module 11, a housing 12, a rotating shaft 13, and a housing 14. The rotating shaft 13 connects the housing 12 and the housing 14. The rotating shaft 13 may be assembled from multiple components and is capable of generating mechanical movement, causing the first housing 12 to rotate relative to the housing 14, so that the housing 12 and the housing 14 can be opened or closed.

[0065] like Figure 3 As shown, the display module 11 can cover the housing 12, the pivot 13, and the housing 14, and the housing 12, the pivot 13, and the housing 14 can be located on the same side of the display module 11. For example, the housing 12, the pivot 13, and the housing 14 can all be located on the underside of the display module 11.

[0066] The display module 11 in this embodiment has flexible bending properties. For example... Figure 3 As shown, the display module 11 can be divided into three sections arranged in sequence: a non-bending area 11a, a bending area 11b, and a non-bending area 11c. The bending area 11b is connected between the non-bending areas 11a and 11c.

[0067] like Figure 3 As shown, housing 12 may include a middle frame 12a and a rear shell 12b. The non-bending area 11a may be fixed to one side of the middle frame 12a, and the rear shell 12b may be fixed to the other side of the middle frame 12a. Housing 14 may include a middle frame 14a and a rear shell 14b. The non-bending area 11c may be fixed to one side of the middle frame 14a, and the rear shell 14b may be fixed to the other side of the middle frame 14a.

[0068] like Figure 3 As shown, the electronic device 1 may also include a sound outlet 1a, which may be disposed on the middle frame 12a or the middle frame 14a. For example, the sound outlet 1a may be located along the length direction of the middle frame 12a (e.g., Figure 3 One of the two opposite sides (in the Y direction). There can be multiple sound holes 1a, for example, and these sound holes 1a can be located, for example, along the width direction of the middle frame 12a (e.g., Figure 3 Arranged sequentially in the X direction (of the middle).

[0069] Understandable, Figure 3 The position, number, and arrangement of the sound outlets 1a shown are merely illustrative examples and are not intended to limit this embodiment. For example, in another embodiment, there may be at least one sound outlet 1a, which may be located on one or more sides of the middle frame 12a or one or more sides of the middle frame 14a; or, some sound outlets 1a may be located on the middle frame 12a and others on the middle frame 14a; or, the sound outlets 1a may be located at other positions on the middle frame 12a or the middle frame 14a that meet the product requirements.

[0070] In this embodiment, the electronic device 1 may also include a speaker, which is installed inside the electronic device 1 at the position of the sound outlet 1a, so that the sound emitted by the speaker is transmitted to the outside of the electronic device 1 through the sound outlet 1a.

[0071] refer to Figure 3 As shown, in this embodiment, the electronic device 1 can be an inward-folding screen device, that is, when the electronic device 1 is in the folded state, the display module 11 can be entirely located between the housing 12 and the housing 14. In another embodiment, the electronic device 1 can also be an outward-folding screen device, that is, when the electronic device 1 is in the folded state, the display module 11 can be covered outside the first housing 12 and the second housing 14.

[0072] In this embodiment, for example, electronic device 1 can be a large folding device, which can be folded from the left and right sides towards the middle when the user holds electronic device 1 normally. In another embodiment, electronic device 1 can also be a small folding device, which can be folded from the top and bottom sides towards the middle when the user holds electronic device 1 normally.

[0073] Figure 4 The illustration shows an electronic device 1 in another embodiment. Electronic device 1 can be a foldable electronic device, such as a foldable mobile phone. This foldable mobile phone can be folded into three layers, and therefore can be called a tri-fold phone. The state in which the tri-fold phone is fully unfolded and reaches its maximum volume can be called the unfolded state. The state in which the tri-fold phone is fully folded and reaches its minimum volume can be called the folded state. Figure 4 As shown, the electronic device 1 may include a display module 11, a housing 12, a pivot 13, a housing 14, a pivot 15, and a housing 16.

[0074] like Figure 4 As shown, shaft 13 connects housing 12 and housing 14, and shaft 15 connects housing 14 and housing 16. Both shaft 13 and shaft 15 can be assembled from multiple components. Shaft 13 can generate mechanical movement to make housing 12 rotate relative to housing 14, so that housing 12 and housing 14 can be opened or closed; shaft 15 can generate mechanical movement to make housing 14 rotate relative to housing 16, so that housing 14 and housing 16 can be opened or closed.

[0075] like Figure 4 As shown, the display module 11 can cover the housing 12, the rotating shaft 13, the housing 14, the rotating shaft 15, and the housing 16. The housing 12, the rotating shaft 13, the housing 14, the rotating shaft 15, and the housing 16 can be located on the same side of the display module 11. In this embodiment, the display module 11 can be fixedly connected to the housing 12, the rotating shaft 13, the housing 14, the rotating shaft 15, and the housing 16.

[0076] The display module 11 in this embodiment has flexible bending properties. For example... Figure 4 As shown, the display module 11 can be divided into non-bending areas 11a, bending areas 11b, non-bending areas 11c, bending areas 11d, and non-bending areas 11e arranged sequentially. Bending area 11b connects non-bending areas 11a and 11c, and bending area 11d connects non-bending areas 11c and 11e.

[0077] refer to Figure 4 As shown, in this embodiment, the electronic device 1 may include an inward folding portion and an outward folding portion. When the electronic device 1 is in a folded state, the non-bending area 11a, the bending area 11b, and the non-bending area 11c of the display module 11 can all be located between the housing 12 and the housing 14, and the non-bending area 11e of the display module 11 can be covered outside the housing 16.

[0078] like Figure 4As shown, housing 12 may include a middle frame 12a and a rear shell 12b. A non-bending area 11a may be fixed to one side of the middle frame 12a, and the rear shell 12b may be fixed to the other side of the middle frame 12a. Second housing 14 may include a middle frame 14a and a rear shell 14b. A non-bending area 11c may be fixed to one side of the middle frame 14a, and the rear shell 14b may be fixed to the other side of the middle frame 14a. Housing 16 may include a middle frame 16a and a rear shell 16b. A non-bending area 11e may be fixed to one side of the middle frame 16a, and the rear shell 16b may be fixed to the other side of the middle frame 16a.

[0079] like Figure 4 As shown, the electronic device 1 may further include a sound outlet 1a, which may be disposed on the middle frame 12a, middle frame 14a, or middle frame 16a. For example, the sound outlet 1a may be located on one of two opposite sides along the length direction of the middle frame 16a. For example, there may be multiple sound outlets 1a, which may be arranged sequentially along the width direction of the middle frame 16a.

[0080] Understandable, Figure 3 The position, number, and arrangement of the sound outlets 1a shown are merely illustrative examples and are not intended to limit this embodiment. For example, in another embodiment, there may be at least one sound outlet 1a, which may be located on one or more sides of the middle frame 12a, one or more sides of the middle frame 14a, or one or more sides of the middle frame 16a; or, some sound outlets 1a may be located on the middle frame 12a, some on the middle frame 14a, and some on the middle frame 16a; or, the sound outlets 1a may also be located at other positions on the middle frame 12a, middle frame 14a, or middle frame 16a that meet the product requirements.

[0081] In this embodiment, the electronic device 1 may also include a speaker, which is installed inside the electronic device 1 at the position of the sound outlet 1a, so that the sound emitted by the speaker is transmitted to the outside of the electronic device 1 through the sound outlet 1a.

[0082] The following uses a candybar mobile phone as an example to illustrate the specific structure of electronic device 1.

[0083] Figure 5 for Figure 1 An exploded view of electronic device 1 in the diagram. Figure 6 for Figure 5 A three-dimensional structural diagram of the first shell 3 in the middle. Figure 6 The perspective shown in the first shell 3 is different from that in the first shell 3. Figure 5 From that perspective. Figure 7 for Figure 6 A three-dimensional structural diagram of the first shell 3 from another perspective. Figure 8 for Figure 7A partially enlarged schematic diagram of point B of the first shell 3.

[0084] like Figure 6 As shown, in this embodiment, the first housing 3 may be provided with a groove 32, and the side wall 32b of the groove 32 may be provided with a sound outlet 31, which can connect the groove 32 to the outside of the electronic device 1. The groove 32 can be used to install a speaker 5, which will be described below.

[0085] like Figure 6 As shown, for example, the first housing 3 may include a middle plate 3a and a frame 3b surrounding the outer periphery of the middle plate 3a. A groove 32 may be formed in the middle plate 3a, and a portion of the frame 3b may serve as the sidewall of the groove 32.

[0086] Combination Figure 5 and Figure 6 As shown, for example, the opening of the groove 32 may face the second housing 4. In another embodiment, the opening of the groove 32 may also face the display module 2.

[0087] like Figure 8 As shown, the side wall 32b of the groove 32, which has a sound outlet 31, can be provided with a groove 32a. The groove 32a can be along the thickness direction of the first housing 3 (e.g., Figure 8 The Z-direction of the sidewall 32b extends through the side of the bottom wall 32c of the groove 32, away from the groove 32, and can also extend along the thickness direction of the sidewall 32b (e.g., along the Z-direction of the groove 32b). Figure 8 The groove 32a (in the Y direction) extends through the sidewall 32b towards the recess 32. The groove 32a is not connected to the sound outlet 31. The bottom surface 321a of the groove 32a can be used to connect to the frame 52 of the speaker 5. In another embodiment, the sidewall 32b may not have the groove 32a.

[0088] like Figure 8 As shown, the surface of the sound outlet 31 facing the opening 31a in the groove 32 is the opening surface 321b. The opening surface 321b can be inclined relative to the bottom wall 32c. In another embodiment, the opening surface 321b can also be perpendicular or approximately perpendicular to the bottom wall 32c.

[0089] Understandable, Figures 5-8 The first housing 3 shown only illustrates the structure for mounting the speaker 5; this is merely a schematic representation. In reality, the first housing 3 can also have other structures, such as those for mounting internal components like batteries, circuit boards, and buttons.

[0090] Figure 9 This is a schematic diagram of the three-dimensional structure of speaker 5. Figure 10 for Figure 9 An exploded view of the speaker 5 in the diagram. Figure 11 for Figure 10 A three-dimensional structural diagram of frame 52 in the diagram. Figure 11 The viewpoint shown by frame 52 in the middle is different from that of the viewpoint shown by the frame 52 in the middle. Figure 10 From that perspective.

[0091] like Figure 9 and Figure 10 As shown, the speaker 5 may include a frame 52 and a sound-emitting unit 53, etc., and the sound-emitting unit 53 may be installed inside the frame 52. In this embodiment, the sound-emitting unit 53 may also be referred to as a speaker unit or core.

[0092] like Figure 9 and Figure 10 As shown, for example, the frame 52 can be generally square. In another embodiment, the shape of the frame 52 is not limited to square.

[0093] like Figure 9 As shown, for example, the frame 52 can be made of plastic. Plastic is lightweight and has good support properties, which is beneficial for the frame 52 to support the sound-generating unit 53 and also helps to reduce the weight of the speaker 5 and the electronic device 1. In another embodiment, the frame 52 can also be made of other materials that meet the requirements.

[0094] Combination Figures 8-11 As shown, the frame 52 may include a peripheral sidewall 52b and a load-bearing wall 52a. The peripheral sidewall 52b may include a first part 522b and a second part 521b, the first part 522b and the second part 521b being connected and forming an annular space 52d. The first part 522b may be arranged opposite to the sound outlet 31. For example, the first part 522b may be... Figure 10 and Figure 11 The portion shown within the dashed box, the second part 521b, is the portion outside the dashed box of the peripheral sidewall 52b. It is understandable that... Figure 10 and Figure 11 The dashed box in the image is not an actual dividing line on the product; it is merely a diagram for ease of observation and description.

[0095] Combination Figure 8 and Figure 10 As shown, exemplarily, the outer surface of the first portion 522b may include a first sub-surface 5221b, which may be a slope. A gap may exist between the first sub-surface 5221b and the opening surface 321b, which helps to prevent the frame 52 from obstructing the sound outlet, as will be explained below. In another embodiment, whether there is a gap between the first sub-surface 5221b and the opening surface 321b of the first portion 522b can be set according to product requirements.

[0096] Combination Figure 8 and Figure 10As shown, by way of example, the first sub-surface 5221b may not be parallel to the opening surface 321b. The first sub-surface 5221b may be inclined inward toward the groove 32 relative to the opening surface 321b of the sound outlet 31, which is beneficial to the unobstructed sound outlet channel, as will be explained below. In another embodiment, the first sub-surface 5221b may also be parallel to the opening surface 321b.

[0097] Combination Figure 8 and Figure 11 As shown, by way of example, the inner surface of the first portion 522b may be provided with a boss 5222b. The provision of the boss 5222b is beneficial for the filling of the colloid, as will be explained below. In another embodiment, the inner surface of the first portion 522b may not be provided with a boss 5222b.

[0098] Combination Figure 8 and Figure 10 As illustrated, exemplarily, the outer surface of the second portion 521b may include a second sub-surface 5211b, which may be an inclined surface. The second sub-surface 5211b is inclined relative to the outer surface 521a of the supporting wall 52a, and may be parallel to the opening surface 321b. In another embodiment, the second sub-surface 5211b may also be perpendicular to the outer surface 521a of the supporting wall 52a.

[0099] Combination Figure 8 and Figure 11 As shown, the supporting wall 52a can be located on the side of the frame 52 facing the bottom wall 32c of the groove 32, and the supporting wall 52a can protrude from the inner side 5212b of the second part 521b.

[0100] Combination Figure 8 and Figure 11 As shown, exemplarily, the supporting wall 52a may have a stepped structure 521a, for example, the stepped structure 521a may include at least two steps. The stepped structure 521a facilitates the filling of the adhesive between the sound-generating unit 53 and the supporting wall 52a, as will be explained below. In another embodiment, the supporting wall 52a may also be without the stepped structure 521a.

[0101] Combination Figures 8-10 As shown, by way of example, the frame 52 may further include a connecting portion 52c, which may protrude from the side of the peripheral sidewall 52b facing the opening surface 321b. The connecting portion 52c can be used to connect with the bottom wall 321a of the groove 32a, as will be described below. In another embodiment, the frame 52 may not have the connecting portion 52c.

[0102] Combination Figure 8 and Figure 9As shown, exemplarily, the sound-generating unit 53 may include a vibration system and a magnetic circuit system. The vibration system includes a diaphragm 531a located on the surface 53a of the sound-generating unit 53 and a voice coil (not shown) coupled to the underside of the diaphragm 531a. The surface 53a of the sound-generating unit 53 may face the bottom wall 32c of the groove 32. The magnetic circuit system forms a magnetic gap to accommodate the voice coil. The voice coil can be connected to an electrical signal, causing it to vibrate up and down within the magnetic gap formed by the magnetic circuit system, further driving the diaphragm 531a to vibrate and generate sound. In another embodiment, the structure of the sound-generating unit 53 may not be limited to those described above.

[0103] Figure 12 This is a schematic diagram of the assembly structure of the sound-generating unit 53 and the frame 52. Figure 13 for Figure 12 A CC cross-sectional view of the sound-generating unit 53 and the frame 52. Figure 13 The central sound unit 53 is indicated by a left diagonal shading, and the frame 52 is indicated by a right diagonal shading.

[0104] Combination Figures 10-13 As shown, the sound-generating unit 53 can be located within the annular space 52d, and the sound-generating unit 53 can be connected to the supporting wall 52a of the frame 52. For example, the surface 53a where the diaphragm 531a of the sound-generating unit 53 is located can overlap with the supporting wall 52a, for example, it can overlap with one of the steps of the stepped structure 521a of the supporting wall 52a.

[0105] Combination Figure 12 and Figure 13 As shown, for example, the supporting wall 52a and the sound-generating unit 53 can be sealed together by an adhesive, which can be filled between the surface of the stepped structure 521a and the sound-generating unit 53. The adhesive can be, for example, foam adhesive or hot melt adhesive, etc., and this embodiment does not specifically limit this. In another embodiment, the supporting wall 52a and the sound-generating unit 53 may not be filled with adhesive, but sealed by other materials or other methods.

[0106] Combination Figure 12 and Figure 13 As shown, for example, the peripheral sidewall 52b and the sound-generating unit 53 can be sealed together by an adhesive, which can fill the space between the boss 5222b and the sound-generating unit 53. The adhesive can be, for example, foam adhesive or hot melt adhesive, etc., and this embodiment does not specifically limit this. In another embodiment, the peripheral sidewall 52b and the sound-generating unit 53 may not be filled with adhesive, but sealed using other materials or other methods.

[0107] Combination Figure 12 and Figure 13As shown, for example, the colloid filling the space between the bearing wall 52a and the sound-generating unit 53, and the colloid filling the space between the peripheral wall 52b and the sound-generating unit 53, can be the same type of colloid or different types of colloid.

[0108] Combination Figure 12 and Figure 13 As shown, for example, the colloid filling between the bearing wall 52a and the sound-generating unit 53, and the colloid filling between the peripheral wall 52b and the sound-generating unit 53 can be filled in one go and integrally molded, which can make the connection between the periphery of the sound-generating unit 53 and the frame 52 more compact, which is conducive to achieving a sealed connection between the sound-generating unit 53 and the frame.

[0109] Combination Figures 8-10 As shown, the speaker 5 may also include a first sealing structure 51, through which the bottom wall 32c of the frame 52 facing the groove 32 can be sealed to the first housing 3, as will be explained below. In another embodiment, the speaker 5 may also omit the first sealing structure 51, and the frame 52 and the first housing 3 may be sealed together in other ways.

[0110] like Figure 9 and Figure 10 As shown, for example, the first sealing structure 51 can be a closed frame, and the first sealing structure 51 can cover the outer surface 521a of the bearing wall 52a, the second sub-surface 5211b of the second part 521b, and the surface 521c of the connecting part 52c.

[0111] like Figure 9 and Figure 10 As shown, the material of the first sealing structure 51 can be relatively dense, such as one or more of the following materials: hot melt adhesive, optical adhesive, foam, rubber, etc.

[0112] It is understood that the "sealed connection" mentioned in the embodiments of this application refers to sealing the gap between two components with a relatively dense material, thereby isolating the two components from the surrounding environment to achieve a sealing effect. For example, the sealed connection between the sound-emitting unit 53 and the frame 52 means that the sound-emitting unit 53 and the frame 52 can be sealed with an adhesive or other materials, and the sealed connection between the frame 52 and the first housing 3 means that the frame 52 and the first housing 3 can be sealed with a first sealing structure or other structures.

[0113] The assembly structure and design principle of electronic device 1 are explained below.

[0114] Figure 14 This is a schematic diagram of the assembly structure of the speaker 5 and the first housing 3. Figure 15 for Figure 1 A schematic diagram of the AA cross-sectional structure of electronic device 1 in the diagram. Figure 16 for Figure 15 A magnified schematic diagram of point D of electronic device 1 in the diagram.

[0115] Combination Figures 8-9 and Figure 14 As shown, the speaker 5 can be placed inside the recess 32, and the surface 53a of the diaphragm 531a of the sound-emitting unit 53 can face the bottom wall 32c of the recess 32. The supporting wall 52a of the frame 52 can face the bottom wall 32c of the recess 32.

[0116] Combination Figures 8-10 and Figure 14 As shown, by way of example, the surface of the frame 52 facing the bottom wall 32c of the groove 32 can be sealed to the first housing 3 through the first sealing structure 51. For example, the portion of the first sealing structure 51 fixed to the outer surface 521a of the bearing wall 52a can be connected to the bottom wall 32c of the groove 32, the portion of the first sealing structure 51 fixed to the second sub-surface 5211b can be connected to the opening surface 321b of the groove 32, and the portion of the first sealing structure 51 fixed to the surface 521c of the connecting portion 52c can be connected to the bottom surface 321a of the groove 32a, so as to achieve a sealed connection between the frame 52 and the first housing 3.

[0117] Combination Figures 14-16 As shown, the display module 2 can be installed on one side of the first housing 3, and the second housing 4 can be installed on the other side of the first housing 3. The opening of the groove 32 in the first housing 3 can face the second housing 4. The first housing 3 can be sealed to the second housing 4; for example, the frame 3b of the first housing 3 can be sealed to the second housing 4, so that the first housing 3 and the second housing 4 together form an inner cavity 6, achieving waterproof and dustproof protection for the electronic device 1.

[0118] like Figure 16 As shown, the inner cavity 6 may include a front acoustic cavity 6a and a rear acoustic cavity 6b that are isolated from each other. The first housing 3, the first sealing structure 51, the frame 52, and the sound-emitting unit 53 can form the front acoustic cavity 6a, which is connected to the sound outlet 31. The sound-emitting unit 53, the frame 52, the first housing 3, and the second housing 4 can form the rear acoustic cavity 6b. It can be understood that the entire space of the device, excluding the front acoustic cavity 6a, can serve as the rear acoustic cavity 6b. The front acoustic cavity 6a can also be simply referred to as the front acoustic cavity 6a, and the rear acoustic cavity 6b can also be simply referred to as the rear cavity 6b.

[0119] like Figure 16As shown, the sealed connection between the frame 52 and the first housing 3, and the sealed connection between the frame 52 and the sound-generating unit 53, effectively isolates the front acoustic cavity 6a and the rear acoustic cavity 6b, preventing acoustic short circuits in the sound-generating unit 53 and enhancing the acoustic performance of the speaker 5. An acoustic short circuit in the sound-generating unit 53 refers to the phenomenon where sound waves with opposite phases generated before and after the sound-generating unit 53 diffract and cancel each other out without effective isolation, resulting in severe attenuation of low-frequency effects. In another embodiment, the front acoustic cavity 6a and the rear acoustic cavity 6b can also be isolated using other feasible methods.

[0120] like Figure 16 As shown, a sound outlet channel can be formed between the diaphragm 531a and the sound outlet 31. The first part 522b of the frame 52 does not have a support wall 52a, which can prevent the frame 52 from blocking the sound outlet 31. Therefore, the blockage of the sound outlet channel can be avoided, which is conducive to the sound generated by the sound unit 53 being transmitted out of the electronic device 1 (hereinafter referred to as sound outlet).

[0121] like Figure 16 As shown, for example, the sound-emitting unit 53 and the boss 5222b are in the thickness direction of the bottom wall 32c (e.g., Figure 16 The components do not overlap in the Z direction. The distance between the side of the boss 5222b facing the bottom wall 32c of the groove 32 and the bottom wall 32c of the groove 32 is greater than the distance between the side of the bearing wall 52a facing the bottom wall 32c of the groove 32 and the bottom wall 32c. This arrangement can further reduce the obstruction of the sound outlet 31 by the frame 52, which is beneficial to sound output.

[0122] like Figure 16 As shown, for example, there is a gap between the first sub-surface 5221b of the frame 52 and the opening surface 321b of the sound outlet 31. That is, the first sub-surface 5221b of the frame 52 and the opening surface 321b of the sound outlet 31 are not in contact. This design can avoid the peripheral sidewall 52b of the frame 52 from partially blocking the sound outlet 31, making the sound outlet channel more unobstructed and conducive to sound output.

[0123] like Figure 16 As shown, for example, the first sub-surface 5221b of the frame 52 can be tilted toward the inner cavity 6 relative to the opening surface 321b of the sound outlet 31, thereby increasing the distance between the first sub-surface 5221b of the frame 52 and the opening surface 321b, and structurally reducing the risk of the first sub-surface 5221b of the frame 52 fitting together with the opening surface 321b. Therefore, it can further prevent the frame 52 from blocking the sound outlet 31, making the sound outlet channel more unobstructed and conducive to sound output.

[0124] In conventional designs, the speaker 5 has a front cover and a rear cover. The front cover can be, for example, a steel sheet, a cover made of metal and plastic in one piece, or other structures that meet the requirements. The thickness of the front cover can be approximately 0.2 mm. The rear cover can also be, for example, a steel sheet, a cover made of metal and plastic in one piece, or other structures that meet the requirements. The thickness of the rear cover can be approximately 0.15 mm, and the gap between the rear cover and the sound-emitting unit 53 can be approximately 0.1 mm. Due to the limitations of the front and rear cover thickness, the vibration space of the front acoustic cavity, and the magnetic circuit under the requirement of large amplitude, it is difficult to meet the space requirements of ultra-thin devices (thickness less than 5 mm). Furthermore, the thinning of the electronic device 1 will reduce the volume of the front and rear acoustic cavities, leading to a decrease in the acoustic performance of the speaker 5.

[0125] like Figure 16 As shown, in this embodiment, the speaker 5 does not require a front cover, which reduces the overall thickness of the speaker 5, making the electronic device 1 thinner and lighter. Furthermore, the diaphragm 531a of the sound-emitting unit 53 directly forms the front sound cavity 6a with the first housing 3 and frame 52, allowing the thickness of the front cover in conventional designs to compensate for the height and vibration space of the front sound cavity 6a. This helps to increase the amplitude of the diaphragm 531a, thereby increasing the maximum linear displacement (X). max This improves the acoustic performance and sound quality of the speaker 5. The maximum linear displacement is a key parameter for evaluating speaker unit performance; it refers to the maximum distance the voice coil can maintain a linear response while moving unidirectionally within the magnetic gap. Exceeding this range will result in significant distortion. The maximum linear displacement is limited by the space of the front acoustic cavity 6a. Furthermore, the first part 522b of the frame 52 opposite the sound outlet 31 does not have a supporting wall 52a, while the second part 521b has a supporting wall 52a. This ensures good mechanical support for the sound-emitting unit 53 and avoids the frame 52 obstructing the sound outlet 31, which is beneficial for sound output. Therefore, the solution in this embodiment can reduce the thickness of the speaker 5 and the electronic device 1, while ensuring the acoustic performance of the speaker 5 and improving sound output.

[0126] like Figure 16As shown, in this embodiment, the speaker 5 does not require a rear cover, which further reduces the overall thickness of the speaker 5 (compared to the conventional solution where the speaker 5 has both a front and rear cover, the solution of eliminating the front and rear covers can reduce the thickness of the speaker 5 by at least 10% while keeping the thickness of the sound-emitting unit 53 unchanged), thus making the electronic device 1 thinner and lighter. Furthermore, the entire space except for the front acoustic cavity 6a can be used to form the rear acoustic cavity 6b; this design can be called an open rear cavity design. This open rear cavity design can expand the space of the rear acoustic cavity 6b, which is beneficial for enhancing the low-frequency performance of the speaker 5, achieving high volume, stereo sound effects, and improving the sound quality of the speaker 5. In another embodiment, the speaker 5 may also have a rear cover, with the sound-emitting unit 53, the frame 52, and the rear cover forming the rear acoustic cavity 6b.

[0127] Combination Figures 5-16 As shown, in this embodiment, the opening of the groove 32 of the first housing 3 faces the second housing 4, and the front acoustic cavity 6a of the speaker 5 faces the display module 2. This is just an illustrative example. In another embodiment, the opening of the groove 32 of the first housing 3 can face the display module 2, and the positional relationship between the speaker 5 and the groove 32 can remain unchanged, so that the front acoustic cavity 6a of the speaker 5 faces the second housing 4. In this embodiment, the first housing 3, the frame 52, and the sound-emitting unit 53 can participate in forming the front acoustic cavity 6a, and the sound-emitting unit 53, the frame 52, the first housing 3, and the display module 2 can participate in forming the rear acoustic cavity 6b. This embodiment can also reduce the thickness of the speaker 5 and the electronic device 1, while ensuring the acoustic performance of the speaker 5, and is also beneficial for sound output.

[0128] In the embodiments described above, the first housing 3 is provided with a groove 32, and the front sound cavity 6a is surrounded by the first housing 3, the sound-emitting unit 53, and the frame 52, etc. This is only an illustrative example. In another embodiment, the bottom wall 32c of the groove 32 of the first housing 3 may be provided with a through hole, and the front sound cavity 6a may be surrounded by the display module 2, the first housing 3, the sound-emitting unit 53, and the frame 52, etc., which will be described below.

[0129] Figure 17 This is an exploded view of electronic device 1 in another embodiment. Figure 18 for Figure 17 A three-dimensional structural diagram of the first shell 3 in the middle. Figure 19 for Figure 18 A three-dimensional structural diagram of the first shell 3 from another perspective. Figure 20 for Figure 19 A magnified view of part E in the diagram.

[0130] Combination Figures 17-19As shown, the first housing 3 may be provided with a groove 32, and the sidewall 32b of the groove 32 may be provided with a sound outlet 31, which may connect the groove 32 to the outside of the electronic device 1. For example, the first housing 3 may include a middle plate 3a and a frame 3b surrounding the outer periphery of the middle plate 3a, the groove 32 may be formed in the middle plate 3a, and a part of the frame 3b may serve as the sidewall of the groove 32.

[0131] Combination Figures 17-19 As shown, for example, the opening of the groove 32 may face the second housing 4. In another embodiment, the opening of the groove 32 may also face the display module 2.

[0132] Combination Figure 18 and Figure 19 As shown, the bottom wall 32c of the groove 32 may be provided with a through hole 33. The through hole 33 may be along the thickness direction of the first housing 3 (e.g., Figure 18 and Figure 19 (Z direction) penetrates through the first shell 3.

[0133] like Figure 17 As shown, the electronic device 1 may further include a second sealing structure 6, which can be fixed to the side of the first housing 3 facing the display module 2 and surrounds the outer periphery of the through hole 33. The material of the second sealing structure 6 can be relatively dense, such as one or more of hot melt adhesive, optical adhesive, foam, rubber, etc. The second sealing structure 6 can be used for a sealed connection between the display module 2 and the first housing 3.

[0134] like Figure 20 As shown, the side wall 32b of the groove 32, which has a sound outlet 31, can be provided with a groove 32a. The groove 32a can be along the thickness direction of the first housing 3 (e.g., Figure 20 The Z-direction of the sidewall 32b extends through the side of the bottom wall 32c of the groove 32, away from the groove 32, and can also extend along the thickness direction of the sidewall 32b (e.g., along the Z-direction of the groove 32b). Figure 20 The groove 32a (in the Y direction) extends through the sidewall 32b towards the recess 32. The groove 32a is not connected to the sound outlet 31. The bottom surface 321a of the groove 32a can be used to connect to the frame 52 of the speaker 5. In another embodiment, the sidewall 32b may not have the groove 32a.

[0135] like Figure 20 As shown, the surface of the sound outlet 31 facing the opening 31a in the groove 32 is the opening surface 321b. The opening surface 321b can be perpendicular or approximately perpendicular to the bottom wall 32c. In another embodiment, the surface 321b can also be inclined relative to the bottom wall 32c.

[0136] like Figure 20As shown, each end of the sidewall 32b of the groove 32, which has a sound outlet 31, can be provided with a support platform 32d. The support platform 32d can connect the opening surface 321b and the bottom wall 32c, and the sound outlet 31 can be located between the two support platforms 32d. The surface 321d of each support platform 32d facing away from the sound outlet 31 can be inclined relative to the bottom wall 32c. In another embodiment, the surface 321d of the support platform 32d can also be perpendicular to the bottom wall 32c, or the sidewall 32b may not have a second support platform 32d.

[0137] Understandable, Figures 17-20 The first housing 3 shown only illustrates the structure for mounting the speaker 5; this is merely a schematic representation. In reality, the first housing 3 can also have other structures, such as those for mounting internal components like batteries, circuit boards, and buttons.

[0138] The three-dimensional structure of the speaker 5 in this embodiment can be compared with... Figures 9-10 The illustrated embodiments are largely the same. (Combined) Figures 9-10 and Figure 20 As shown, for example, the second sub-face 5211b of the frame 52 can be parallel to the face 321d of the support platform 32d.

[0139] The assembly structure and design principle of electronic device 1 are explained below.

[0140] Figure 21 This is a schematic diagram of the assembly structure of the speaker 5 and the first housing 3. Figure 22 for Figure 17 A cross-sectional view of electronic device 1 in the diagram. Figure 22 The cross-section in the middle can be Figure 1 AA section in the middle. Figure 23 for Figure 22 Enlarged schematic diagram of point F of electronic device 1 in the diagram.

[0141] Combination Figure 9 , Figure 20 and Figure 21 As shown, the speaker 5 can be placed within the recess 32, and the diaphragm 531a of the sound-generating unit 53 can be exposed through the through-hole 33. "Diaphragm 531a exposed through the through-hole 33" means that the diaphragm 531a can be observed from above the first housing 3. The diaphragm 531a can be located below the through-hole 33, inside the through-hole 33, or partially exposed from the through-hole 33. The top 52a of the frame 52 can face the bottom wall 32c of the recess 32.

[0142] Combination Figures 9-10 and Figure 20As shown, by way of example, the surface of the frame 52 facing the bottom wall 32c of the groove 32 can be sealed to the first housing 3 through the first sealing structure 51. For example, the portion of the first sealing structure 51 fixed to the outer surface 521a of the bearing wall 52a can be connected to the bottom wall 32c of the groove 32, the portion of the first sealing structure 51 fixed to the second sub-surface 5211b can be connected to the surface 321d of the bearing platform 32d, and the portion of the first sealing structure 51 fixed to the surface 521c of the connecting portion 52c can be connected to the bottom surface 321a of the groove 32a, so as to achieve a sealed connection between the frame 52 and the first housing 3.

[0143] Combination Figures 21-23 As shown, the display module 2 can be installed on one side of the first housing 3, and the second housing 4 can be installed on the other side of the first housing 3. The opening of the groove 32 in the first housing 3 can face the second housing 4. The first housing 3 can be sealed to the second housing 4; for example, the frame 3b of the first housing 3 can be sealed to the second housing 4, so that the first housing 3 and the second housing 4 together form an inner cavity 6, achieving waterproof and dustproof protection for the electronic device 1.

[0144] like Figure 23 As shown, the inner cavity 6 may include a front acoustic cavity 6a and a rear acoustic cavity 6b that are isolated from each other. The display module 2, the second sealing structure 6, the first housing 3, the first sealing structure 51, the frame 52, and the sound-emitting unit 53 can form the front acoustic cavity 6a, which is connected to the sound outlet 31. The sound-emitting unit 53, the frame 52, the first housing 3, and the second housing 4 can form the rear acoustic cavity 6b. All space in the device except for the front acoustic cavity 6a can be used as the rear acoustic cavity 6b. The front acoustic cavity 6a can be simply referred to as the front acoustic cavity 6a, and the rear acoustic cavity 6b can be simply referred to as the rear cavity 6b.

[0145] like Figure 23 As shown, by sealing the display module 2 to the first housing 3, sealing the first housing 3 to the frame 52, and sealing the frame 52 to the sound-emitting unit 53, it is beneficial to isolate the front acoustic cavity 6a and the rear acoustic cavity 6b, which helps to prevent acoustic short circuits in the sound-emitting unit 53 and enhances the performance of the speaker 5. In another embodiment, the front acoustic cavity 6a and the rear acoustic cavity 6b can also be isolated by other feasible methods.

[0146] like Figure 23 As shown, a sound outlet channel can be formed between the diaphragm 531a and the sound outlet 31. The first part 522b of the frame 52 does not have a support wall 52a, which can prevent the frame 52 from blocking the sound outlet 31. Therefore, the blockage of the sound outlet channel can be avoided, which is beneficial to sound output.

[0147] like Figure 23 As shown, for example, the sound-emitting unit 53 and the boss 5222b are in the thickness direction of the bottom wall 32c (e.g., Figure 23 The components do not overlap in the Z direction. The distance between the side of the boss 5222b facing the bottom wall 32c of the groove 32 and the bottom wall 32c of the groove 32 is greater than the distance between the side of the bearing wall 52a facing the bottom wall 32c of the groove 32 and the bottom wall 32c. This arrangement can further reduce the obstruction of the sound outlet 31 by the frame 52, which is beneficial to sound output.

[0148] like Figure 23 As shown, for example, there is a gap between the first sub-surface 5221b of the frame 52 and the opening surface 321b of the sound outlet 31. That is, the first sub-surface 5221b of the frame 52 and the opening surface 321b of the sound outlet 31 are not in contact. This design can avoid the peripheral sidewall 52b of the frame 52 from partially blocking the sound outlet 31, making the sound outlet channel more unobstructed and conducive to sound output.

[0149] like Figure 23 As shown, for example, the first sub-surface 5221b of the frame 52 can be tilted toward the inner cavity 6 relative to the opening surface 321b of the sound outlet 31, thereby increasing the distance between the first sub-surface 5221b of the frame 52 and the opening surface 321b, and structurally reducing the risk of the first sub-surface 5221b of the frame 52 fitting together with the opening surface 321b. Therefore, it can further prevent the frame 52 from blocking the sound outlet 31, making the sound outlet channel more unobstructed and conducive to sound output.

[0150] like Figure 23 As shown, in this embodiment, the speaker 5 does not require a front cover, which reduces the overall thickness of the speaker 5, making the electronic device 1 thinner and lighter. Furthermore, the diaphragm 531a of the sound-emitting unit 53 directly forms the front sound cavity 6a with the display module 2, the first housing 3, and the frame 52. This allows the thickness of the front cover and the first housing 3 in conventional solutions to compensate for the height and vibration space of the front sound cavity 6a, increasing the amplitude of the diaphragm 531a and thus increasing the maximum linear displacement, thereby improving the acoustic performance and sound quality of the speaker 5. In addition, the first part 522b of the frame 52 opposite to the sound outlet 31 does not have a supporting wall 52a, while the second part 521b has a supporting wall 52a. This ensures good mechanical support for the sound-emitting unit 53 and avoids the frame 52 obstructing the sound outlet 31, which is beneficial for sound output. Therefore, the solution in this embodiment can reduce the thickness of the speaker 5 and the electronic device 1, while ensuring the acoustic performance of the speaker 5 and improving sound output.

[0151] like Figure 23As shown, in this embodiment, the speaker 5 does not require a rear cover, which further reduces the overall thickness of the speaker 5 (compared to the conventional solution where the speaker 5 has both a front and rear cover, the solution of eliminating the front and rear covers can reduce the thickness of the speaker 5 by at least 10% while keeping the thickness of the sound-emitting unit 53 unchanged), thus making the electronic device 1 thinner and lighter. Furthermore, the entire space except for the front acoustic cavity 6a can be used to form the rear acoustic cavity 6b; this design can be called an open rear cavity design. This open rear cavity design can expand the space of the rear acoustic cavity 6b, which is beneficial for enhancing the low-frequency performance of the speaker 5, achieving high volume, stereo sound effects, and improving the sound quality of the speaker 5. In another embodiment, the speaker 5 may also have a rear cover, with the sound-emitting unit 53, the frame 52, and the rear cover forming the rear acoustic cavity 6b.

[0152] Combination Figure 21 and Figure 23 As shown, in this embodiment, since the first housing 3 has a through hole 33, the front sound cavity 6a of the sound-emitting unit 53 can utilize the thickness of the first housing 3 and the gap between the first housing 3 and the display module 2 in the thickness direction, compared to Figure 16 In the embodiment shown, the diaphragm 531a of the sound-emitting unit 53 can be designed to be closer to the first housing 3 or the display module 2, thereby making the gap between the sound-emitting unit 53 and the second housing 4 in the thickness direction smaller, which is beneficial to further thinning of the electronic device 1.

[0153] Combination Figures 17-23 As shown, in this embodiment, the opening of the groove 32 of the first housing 3 faces the second housing 4, and the front sound cavity 6a of the speaker 5 faces the display module 2. This is just an illustrative example. In another embodiment, the opening of the groove 32 of the first housing 3 can face the display module 2, and the positional relationship between the speaker 5 and the groove 32 can remain unchanged. The electronic device 1 may also include a third sealing structure, which can surround the outer periphery of the through hole 33, and the second housing 4 and the first housing 3 are sealed together through the third sealing structure. In this embodiment, the second housing 4, the third sealing structure, the first housing 3, the frame 52, and the sound-emitting unit 53 can form the front sound cavity 6a, and the sound-emitting unit 53, the frame 52, the first housing 3, and the display module 2 can form the rear sound cavity. This embodiment can also reduce the thickness of the speaker 5 and the electronic device 1, while ensuring the acoustic performance of the speaker 5, and is also beneficial for sound output.

[0154] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more.

[0155] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Features specified as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0156] The term "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Similarly, "fixation" should also be interpreted broadly. For example, "fixation" can be direct fixation or indirect fixation through an intermediate medium.

[0157] The directional terms mentioned in the embodiments of this application, such as "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side," "top," and "bottom," are only for reference to the directions in the accompanying drawings. These directional terms are used to better and more clearly explain and understand the embodiments of this application, and are not intended to explicitly or implicitly suggest that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, etc., and therefore should not be construed as limiting the embodiments of this application.

[0158] In the description of the embodiments in this application, unless otherwise stated, "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, A and B existing simultaneously, and B existing alone.

[0159] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electronic device, characterized in that, Includes the first housing and the speaker; The first housing is provided with a groove, and the side wall of the groove is provided with a sound outlet, which connects the groove to the outside of the electronic device; The loudspeaker includes a frame and a sound-emitting unit; the frame is located in the groove and is sealed to the first housing; the frame includes a peripheral sidewall and a support wall; the peripheral sidewall includes a first part and a second part, the first part and the second part are connected and form an annular space, and the first part is arranged opposite to the sound outlet. The supporting wall is located on the side of the frame facing the bottom wall of the groove, and the supporting wall protrudes from the inner side of the second part; The sound-generating unit is located in the annular space and connected to the supporting wall, and the periphery of the sound-generating unit is sealed to the frame. The first housing, the frame, and the sound-emitting unit together form the front sound cavity of the loudspeaker, and the front sound cavity is connected to the sound outlet.

2. The electronic device according to claim 1, characterized in that, The surface where the sound outlet hole faces the opening in the groove is the opening surface. The outer surface of the first part includes a first sub-surface, which is an inclined surface. There is a gap between the first sub-surface and the opening surface.

3. The electronic device according to claim 2, characterized in that, The opening surface is not parallel to the first sub-surface.

4. The electronic device according to claim 2 or 3, characterized in that, The outer surface of the second part includes a second sub-surface, which is an inclined surface and is parallel to and connected to the opening surface.

5. The electronic device according to any one of claims 1-4, characterized in that, The supporting wall has a stepped structure, and the supporting wall and the sound-generating unit are connected by a colloid seal, with the colloid filling the space between the surface of the stepped structure and the sound-generating unit.

6. The electronic device according to any one of claims 1-5, characterized in that, The inner side of the first part is provided with a boss, and the distance from the side of the boss facing the bottom wall of the groove to the bottom wall of the groove is greater than the distance from the side of the bearing wall facing the bottom wall of the groove to the bottom wall of the groove; the sound-generating unit and the boss do not overlap in the thickness direction of the bottom wall of the groove; the peripheral sidewall and the sound-generating unit are connected by a sealant, and the sealant is filled between the boss and the sound-generating unit.

7. The electronic device according to any one of claims 1-6, characterized in that, The bottom wall of the frame facing the groove is sealed to the first housing through a first sealing structure, and the first sealing structure participates in forming the front sound cavity.

8. The electronic device according to any one of claims 1-7, characterized in that, The electronic device further includes a second housing, which is sealed to the first housing. The opening of the groove faces the second housing. The second housing, the first housing, the frame, and the sound-emitting unit together form the rear acoustic cavity of the speaker, which is isolated from the front acoustic cavity.

9. The electronic device according to claim 8, characterized in that, The bottom wall of the groove is provided with a through hole; The electronic device further includes a display module and a second sealing structure. The display module and the second housing are located on opposite sides of the first housing. The second sealing structure seals the display module and the first housing and surrounds the outer periphery of the through hole. The display module, the second sealing structure, the first housing, the frame, and the sound unit together constitute the front sound cavity.

10. The electronic device according to any one of claims 1-7, characterized in that, The electronic device further includes a display module, which is fixed to the first housing. The opening of the groove faces the display module. The display module, the first housing, the frame, and the sound-emitting unit together form the rear acoustic cavity of the speaker, which is isolated from the front acoustic cavity.

11. The electronic device according to claim 10, characterized in that, The bottom wall of the groove is provided with a through hole; The electronic device further includes a second housing and a third sealing structure. The display module and the second housing are located on opposite sides of the first housing. The third sealing structure seals and connects the second housing and the first housing. The third sealing structure surrounds the outer periphery of the through hole. The second housing, the third sealing structure, the first housing, the frame, and the sound-emitting unit together constitute the front sound cavity.

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