Housing assembly and electronic device

Abstract

Provided in the present application are a housing assembly and an electronic device. The housing assembly comprises a main body structure and a decorative structure, the main body structure being provided with at least one hollow portion; the decorative structure comprises a decorative member and a loudspeaker core, at least a portion of the decorative member being located in the hollow portion and protruding from the outer surface of the main body structure; the portion of the decorative member located in the hollow portion is provided with at least one light-transmitting hole, and the portion of the decorative member protruding from the outer surface of the main body structure is provided with at least one notch, the notch and the outer surface of the main body structure enclosing a sound outlet hole; the decorative member comprises a decorative cavity and a sound outlet channel, the loudspeaker core being located in the decorative cavity and dividing the decorative cavity into a front cavity and a rear cavity, and the sound outlet channel communicating the front cavity with the sound outlet hole. By means of arranging the loudspeaker core in the decorative member of a camera, the present application fully utilizes the characteristic that a decorative member portion of a camera has a thickness greater than that of a whole device, so as to provide sufficient stacking space for loudspeakers, thus avoiding occupation of a cavity of a whole device by loudspeakers, and reducing structural space requirements for the whole device.

Description

Housing components and electronic devices

[0001] This application claims priority to Chinese Patent Application No. 202510042091.3, filed on January 10, 2025, entitled "Housing Assembly and Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electronic product technology, and more particularly to a housing assembly and an electronic device. Background Technology

[0003] Speakers are used to convert audio electrical signals such as music and speech into sound, and can support the function of external audio playback. Therefore, they are widely used in electronic devices such as mobile phones, tablets, and laptops.

[0004] The current trend towards thinner and lighter electronic devices such as smartphones, tablets, and laptops is towards greater lightness and thinness. However, this trend limits the stacking space, especially in the thickness direction. Speaker performance is strongly correlated with speaker size and rear cavity size, requiring sufficient stacking space, which contradicts the trend towards thinner and lighter designs. This is especially true for stereo dual-speaker or even multi-speaker solutions (where the desired sound quality corresponds to at least two speakers), placing even greater demands on stacking space. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a housing assembly and an electronic device that solves the problem of providing sufficient stacking space for speakers while meeting the demand for thinner and lighter electronic products.

[0006] In a first aspect, embodiments of this application provide a housing assembly comprising: a main structure and a decorative structure; the main structure having at least one open portion; the decorative structure comprising a decorative element and a speaker core, at least a portion of the decorative element being located in the open portion and protruding from the outer surface of the main structure; the portion of the decorative element located in the open portion having at least one light-transmitting hole, and the portion of the decorative element protruding from the outer surface of the main structure having at least one notch, the notch and the outer surface of the main structure forming a sound outlet; the decorative element comprising a decorative cavity and at least one sound outlet channel, the speaker core being located within the decorative cavity and dividing the decorative cavity into a front cavity and a rear cavity, the sound outlet channel connecting the front cavity and the sound outlet channel.

[0007] By placing the speaker core within the camera's decorative element, the inherent thickness of the decorative element (at least a portion of which protrudes from the outer surface of the main structure) is fully utilized, providing ample stacking space for the speaker. This allows for a larger speaker core and a larger rear cavity volume, improving speaker performance and consequently enhancing the sound quality of the electronic product. Furthermore, when the speaker core is located within the decorative cavity, it avoids encroaching on the overall device's space, such as by not occupying additional printed circuit board layout space and reducing the overall structural space requirements. Additionally, the portion of the decorative element protruding from the outer surface of the main structure has at least one notch, which, together with the outer surface of the main structure, forms a sound outlet, making the sound outlet more concealed and further enhancing the aesthetic appeal of the electronic device.

[0008] For example, when the electronic device is a mobile phone, the main structure can be the back cover of the phone (also known as the battery cover). When the electronic device is another electronic device (such as a watch), the main structure can be a structural component or an appearance component.

[0009] For example, the fact that at least a portion of the decorative element is located in the hollowed-out portion can be understood as the projection of at least a portion of the decorative element onto the plane of the main structure being located within the projection of the hollowed-out portion onto the plane of the main structure. When at least a portion of the decorative element is located in the hollowed-out portion, it can protrude from the outer surface of the main structure or from the inner surface of the main structure in the thickness direction.

[0010] For example, the number of notches (i.e., the number of sound outlets) on the portion of the decorative element protruding from the outer surface of the main structure is the same as the number of sound outlet channels, and they correspond one-to-one. For instance, if the portion of the decorative element protruding from the outer surface of the main structure has two notches, then the two notches and the outer surface of the main structure form two sound outlets. The decorative element includes two sound outlet channels, one of which communicates with one of the sound outlets, and the other of which communicates with the other sound outlet.

[0011] According to the first aspect, the decorative part includes a decorative part and a fixing part; at least a portion of the fixing part is located in the hollow part and protrudes from the outer surface of the main structure, and the decorative part at least surrounds the portion of the fixing part that protrudes from the outer surface of the main structure; the portion of the fixing part located in the hollow part has at least one light-transmitting hole, and the fixing part includes a decorative cavity and at least one sound outlet channel; the decorative part has at least one notch.

[0012] Decorative parts are used to decorate electronic devices to enhance their aesthetic appearance, while fixing parts are used to secure speaker cores and / or cameras, etc. By dividing decorative components into decorative and fixing parts—that is, by setting the decorative and fixing parts separately and then fixing them together—the installation of each structure is facilitated.

[0013] According to the first aspect, or any implementation of the first aspect above, the fixing part includes a protruding sub-part, the protruding sub-part including a front shell, a cover and a enclosure, the front shell including an upper wall and an annular sidewall disposed around the periphery of the upper wall; the enclosure is disposed on the upper wall and divides the upper wall into a speaker mounting area and at least one light-transmitting hole mounting area; the light-transmitting hole mounting area of ​​the upper wall has at least one light-transmitting hole; the speaker core is located in the speaker mounting area; the upper wall, enclosure, annular sidewall and speaker core form a front cavity; the portion of the annular sidewall that forms the front cavity has at least one sound outlet channel; the cover is disposed on the side of the annular sidewall opposite to the upper wall and at least covers the speaker core, the cover, enclosure, annular sidewall and speaker core form a rear cavity.

[0014] The front shell, cover, and enclosure work together to form the front and rear chambers of the speaker, resulting in a simple structure and good sealing performance.

[0015] For example, when the speaker core is located at one corner of the upper wall, the portion of the upper wall corresponding to the speaker mounting area, the enclosure, the two surfaces of the annular sidewall, and the speaker core together form the front cavity.

[0016] For example, the upper wall is divided into a speaker mounting area and two light-transmitting hole mounting areas. One light-transmitting hole mounting area has one light-transmitting hole that can expose a camera; the other light-transmitting hole mounting area has two light-transmitting holes, one of which can expose a camera and the other of which can expose a flash.

[0017] According to the first aspect, or any implementation of the first aspect above, the cover extends to at least one light-transmitting hole setting area; the portion of the cover extending to the light-transmitting hole setting area also has at least one light-transmitting hole, and the light-transmitting holes on the cover correspond one-to-one with the light-transmitting holes on the upper wall; a first sealing unit is provided between the upper wall and the cover, and the first sealing unit surrounds the light-transmitting holes of the cover and the light-transmitting holes of the upper wall; the cover, the enclosure, the annular sidewall and the first sealing unit form an auxiliary cavity, and the auxiliary cavity communicates with the rear cavity.

[0018] The auxiliary cavity increases the volume of the rear cavity, which can further improve the sound quality of electronic products. The first sealing unit prevents gas in the auxiliary cavity from leaking through the light-transmitting hole, thus avoiding any impact on sound quality.

[0019] For example, the cover extends to a light-transmitting hole area, the upper wall of which has two light-transmitting holes, and correspondingly, the portion of the cover extending to the light-transmitting hole area also has two light-transmitting holes. One of the light-transmitting holes on the upper wall corresponds to one of the light-transmitting holes on the cover, that is, the projections of the two light-transmitting holes on the plane of the main structure overlap (e.g., coincide, partially overlap, or one is located within the other). Correspondingly, a first sealing unit is located between the upper wall and the cover, and surrounds the two light-transmitting holes. The other light-transmitting hole on the upper wall corresponds to the other light-transmitting hole on the cover, that is, the projections of the two light-transmitting holes on the plane of the main structure overlap (e.g., coincide, partially overlap, or one is located within the other). Correspondingly, another first sealing unit is located between the upper wall and the cover, and surrounds the two light-transmitting holes.

[0020] According to the first aspect, or any implementation of the first aspect above, the protruding sub-part further includes a first fixed step and a second sealing unit. The first fixed step is located in the speaker mounting area; the speaker core is fixed on the first fixed step; the second sealing unit surrounds the side wall of the speaker core and is located in the gap between the side wall of the speaker core and the enclosure and the gap between the side wall of the speaker core and the annular side wall.

[0021] The first fixed step not only limits the distance between the speaker core and the upper wall, ensuring a certain height for the front cavity, but also secures the speaker core. The second sealing unit seals the gaps between the side wall and the enclosure of the speaker core, as well as the gap between the side wall and the annular side wall, ensuring the airtightness of the front cavity and preventing the front and rear cavities from communicating through the gaps between the side wall and the enclosure of the speaker core and the gap between the side wall and the annular side wall, thus affecting sound quality.

[0022] According to the first aspect, or any implementation of the first aspect above, the fixing part further includes a fixing sub-part, which is arranged around the protruding sub-part; the fixing sub-part is fixedly connected to the inner surface of the main structure so that the fixing part is fixedly connected to the main structure.

[0023] The fixing part is located on the inner surface of the main structure, which can not only fix the fixing part, but also not affect the appearance of the electronic device.

[0024] According to the first aspect, or any implementation of the first aspect above, the decorative part includes a decorative sub-part and at least one sealing sub-part; the sealing sub-part has a connecting hole, and the decorative sub-part has at least one notch; the decorative sub-part at least surrounds the portion of the fixing part that protrudes from the outer surface of the main structure; the sealing sub-part is located between the decorative sub-part and the portion of the fixing part that has a sound outlet channel, and the connecting hole connects the sound outlet channel and the sound outlet hole.

[0025] Decorative components can enhance the appearance of electronic devices, while sealed components can prevent gas leakage between the sound outlet and the sound hole, thus improving sound quality.

[0026] According to the first aspect, or any implementation of the first aspect above, the decorative structure further includes a third sealing unit, which is located between the sealing sub-part and the fixing part, and surrounds the sound outlet channel and the connecting hole.

[0027] The third sealing unit prevents gas leakage and further improves sound quality.

[0028] For example, the third sealing unit may include foam, etc.

[0029] According to the first aspect, or any implementation of the first aspect above, the housing assembly further includes a dustproof structure that at least covers the sound outlet channel.

[0030] The dustproof structure prevents external dust from entering the front cavity, thus protecting the speaker from dust.

[0031] For example, a dustproof structure may include a dustproof net, etc.

[0032] According to the first aspect, or any implementation of the first aspect above, a notch is formed by a localized depression on the surface where the decorative sub-part contacts the outer surface of the main structure.

[0033] In this way, the sound outlet is placed in a more concealed position, further enhancing the aesthetic appearance of the electronic device.

[0034] According to the first aspect, or any implementation of the first aspect above, the decorative part further includes a second fixed step, the second fixed step being annular; the decorative sub-part is disposed around the second fixed step; the decorative element further includes a light-transmitting lens, the light-transmitting lens being disposed on the second fixed step and covering the light-transmitting hole.

[0035] By covering certain structures with transparent lenses, the aesthetic appearance of electronic devices can be further enhanced.

[0036] According to the first aspect, or any implementation of the first aspect above, the shape of the hollow part is a square (including a rounded square), and the shape of the decorative part is a square ring (including a rounded square ring); the part of the fixing part located in the hollow part has three light-transmitting holes, and the three light-transmitting holes and the speaker core are arranged side by side.

[0037] This design makes full use of the space where the decorative parts protrude from the outer surface of the main structure, thus avoiding both waste of that space and the speaker's encroachment on the overall space.

[0038] Of course, the shapes of the cutout and decorative sub-parts are not limited to these. The cutout can also include rectangles (including rounded rectangles), ovals, circles, or racetrack shapes, etc. Correspondingly, the decorative sub-parts can also include rectangular rings (including rounded rectangle rings), oval rings, circular rings, or racetrack-shaped rings, etc.

[0039] According to the first aspect, or any implementation of the first aspect above, the fixing part includes two sound outlet channels; the decorative sub-part has two notches, the two notches and the outer surface of the main structure form two sound outlet holes, the two sound outlet holes correspond to the two sound outlet channels respectively, and the two sound outlet holes are located on different sides of the square ring respectively.

[0040] In other words, the speaker emits sound through two sound holes, which has a large sound output area. This can improve the performance of the device, enhance the overall sound quality, and reduce the risk of sound quality failure due to blockage of the sound holes during later use of the electronic device.

[0041] According to the first aspect, or any implementation of the first aspect above, the flexible circuit board of the speaker core is fixed to the side of the enclosure away from the upper wall; there is a gap between the enclosure and the cover, and a portion of the flexible circuit board is exposed through the gap; the protruding sub-part also includes a fourth sealing unit, which is used to cover the gap between the enclosure and the cover.

[0042] The portion of the flexible circuit board exposed through the gap can be electrically connected to the printed circuit board. Furthermore, the inclusion of a fourth sealing unit prevents gas leakage from the rear cavity through this gap, further enhancing sound quality.

[0043] According to the first aspect, or any implementation of the first aspect above, a positioning post is provided on the side of the enclosure away from the upper wall, and a positioning hole is opened on the flexible circuit board of the speaker core, with the positioning post located in the positioning hole.

[0044] The positioning posts can both position and fix the flexible circuit board, preventing it from moving in the horizontal direction (i.e., the X-axis or Y-axis direction).

[0045] Secondly, this application provides an electronic device that includes the housing assembly described in the first aspect and any implementation thereof.

[0046] The second aspect and any implementation thereof correspond to the first aspect and any implementation thereof, respectively. The technical effects of the second aspect and any implementation thereof are similar to those of the first aspect and any implementation thereof, and will not be repeated here.

[0047] According to the second aspect, the electronic device further includes a printed circuit board and a printed circuit board support, with the flexible circuit board of the speaker core electrically connected to the printed circuit board; the decorative part includes a decorative portion and a fixing portion; the fixing portion includes a protruding sub-part, the protruding sub-part including a front shell and a enclosure, the front shell including an upper wall and an annular sidewall surrounding the periphery of the upper wall; the enclosure is disposed on the upper wall and divides the upper wall into a speaker mounting area and at least one light-transmitting hole mounting area; the light-transmitting hole mounting area of ​​the upper wall has at least one light-transmitting hole; the speaker core is located in the speaker mounting area; the upper wall, enclosure, annular sidewall and speaker core form a front cavity; the portion of the annular sidewall surrounding the front cavity has at least one sound outlet channel; the printed circuit board support extends to the speaker mounting area, and a fifth sealing unit is provided between the printed circuit board support and the sidewall and enclosure; the printed circuit board support, the fifth sealing unit, enclosure, annular sidewall and speaker core form a rear cavity.

[0048] By reusing the printed circuit board support as a cover, there is no need to set up a cover, which simplifies the structure of electronic devices, reduces the amount of assembly required, and lowers assembly costs.

[0049] According to the second aspect, or any implementation of the second aspect above, the electronic device also includes at least one speaker.

[0050] For example, electronic devices can be equipped with speakers only within the decorative structure. In this way, speakers can be eliminated from the main body cavity, reducing the space occupied by speakers on the printed circuit board. Furthermore, since the decorative part protrudes from the outer surface of the main structure, the speaker cavity space is larger, resulting in better audio performance compared to existing speakers.

[0051] For example, the electronic device includes not only a speaker within the housing assembly, but also a conventional speaker (located adjacent to the motherboard or sub-board). This configuration provides better audio performance compared to existing electronic devices that include two conventional speakers, and reduces the space occupied by one speaker on the printed circuit board, thus increasing stacking space.

[0052] For example, the electronic device includes not only a speaker within the housing assembly but also two conventional speakers (one adjacent to the motherboard and the other adjacent to the sub-board), positioned at opposite ends of the device. This configuration forms a three-speaker system. The speaker within the housing assembly can utilize a low-frequency unit to significantly enhance low frequencies, thereby improving the overall audio performance. Furthermore, the three-speaker system, combined with software algorithm tuning, can achieve features such as spatial audio and privacy calling.

[0053] According to the second aspect, or any implementation of the second aspect above, the electronic device further includes a flash and at least one camera, with the light-transmitting hole exposing the flash and the camera.

[0054] The flash and camera are decorated with housing components, which not only ensures a good appearance but also enables the speaker function. Attached Figure Description

[0055] Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0056] Figure 2 is a schematic diagram of the split structure of the electronic device shown in Figure 1;

[0057] Figure 3 is a schematic diagram of the back structure of an electronic device provided in an embodiment of this application;

[0058] Figure 4 is a cross-sectional view of the electronic device shown in Figure 3 along the AA' direction;

[0059] Figure 5 is a front view of a housing assembly provided in an embodiment of this application;

[0060] Figure 6 is a rear view of a housing assembly provided in an embodiment of this application;

[0061] Figure 7 is a schematic diagram of the split structure of a housing assembly provided in an embodiment of this application;

[0062] Figure 8 is a front structural diagram of a fixing part provided in an embodiment of this application;

[0063] Figure 9 is a schematic diagram of the rear structure of a fixing part provided in an embodiment of this application;

[0064] Figure 10 is a diagram showing the positional relationship between a fixing part and a speaker core according to an embodiment of this application;

[0065] Figure 11 is a schematic diagram of the rear structure of a fixing part provided in an embodiment of this application;

[0066] Figure 12 is a cross-sectional view of the fixing part shown in Figure 11 along the BB' direction;

[0067] Figure 13 is a cross-sectional view of the fixing part shown in Figure 11 along the CC' direction;

[0068] Figure 14 is a schematic diagram of the rear structure of a fixing part provided in an embodiment of this application from another perspective;

[0069] Figure 15 is a partial enlarged view of the EE region of the fixing part shown in Figure 14;

[0070] Figure 16 is a cross-sectional view of the housing assembly shown in Figure 5 along the DD' direction;

[0071] Figure 17 is a front structural diagram of a decorative part provided in an embodiment of this application;

[0072] Figure 18 is a schematic diagram of the rear structure of a decorative part provided in an embodiment of this application;

[0073] Figure 19 is a cross-sectional view of the housing assembly shown in Figure 5 along the GG' direction;

[0074] Figure 20 is another cross-sectional view of the housing assembly shown in Figure 5 along the GG' direction;

[0075] Figure 21 is a diagram showing the film layer relationship between a housing assembly and a printed circuit board bracket provided in an embodiment of this application;

[0076] Figure 22 is an application scenario diagram of the housing component provided in the embodiments of this application in electronic devices. Detailed Implementation

[0077] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0078] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0079] The terms "first" and "second," etc., used in the specification and claims of this application are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.

[0080] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0081] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.

[0082] To better understand the embodiments of this application, the types of speakers mentioned in the embodiments of this application will be introduced first.

[0083] There are generally two types of loudspeakers: loudspeaker modules and loudspeaker units.

[0084] A speaker module typically includes a speaker housing and a speaker core. The speaker core is located within the cavity enclosed by the speaker housing, dividing the cavity into a first acoustic cavity and a second acoustic cavity. The speaker core includes a diaphragm and a driving device disposed on one side of the diaphragm. The driving device drives the diaphragm to vibrate, thereby causing the air in the first acoustic cavity (also known as the front cavity) to vibrate and form sound waves (i.e., sound). The size of the second acoustic cavity (also known as the rear cavity) can affect the low-frequency portion of the sound, thus affecting the audio effect.

[0085] The speaker unit itself does not have a separate outer casing; it only includes the speaker core. The speaker unit can be placed within an electronic device, for example, within the overall cavity of the electronic device. In this case, the gap between the speaker unit and the mid-frame of the electronic device forms the front cavity, and the area of ​​the overall cavity of the electronic device other than the front cavity forms the rear cavity. In this embodiment, the speaker unit is placed within a camera decorative component, which includes a decorative cavity. The speaker unit can divide the cavity into a first acoustic cavity and a second acoustic cavity, thus eliminating the need to occupy overall space.

[0086] After a preliminary introduction to the types of loudspeakers, the embodiments of this application will now be described.

[0087] This application provides an electronic device, which can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), in-vehicle computer, television, smart wearable device (such as a smartwatch), smart home device, or any other electronic device including a speaker. This application does not specifically limit the specific form of the aforementioned electronic device. For ease of explanation, a mobile phone is used as an example for the following description.

[0088] Referring to Figure 1, Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. As shown in Figure 1, the mobile phone 100 includes a display module 10, a back cover (also called a battery cover) 20, and a mid-frame 30.

[0089] In Figure 1, the mobile phone 100 is a rectangular flat plate. To clearly describe the subsequent structural features and their positional relationships, the positional relationships of the structures within the mobile phone 100 are defined by the X-axis, Y-axis, and Z-axis directions. The X-axis represents the width of the mobile phone, the Y-axis represents its length, and the Z-axis represents its thickness. It is understood that the coordinate system (i.e., the X, Y, and Z axes) of the electronic device can be flexibly set according to actual needs and is not specifically limited here. In other optional embodiments, the shape of the electronic device can also be a square flat plate, a circular flat plate, an elliptical flat plate, etc. Of course, the electronic device can also be a foldable electronic device, etc.

[0090] The display module 10 includes a display screen and a cover stacked along the Z-axis. The cover protects the display screen. The display screen may include a liquid crystal display (LCD), an organic light-emitting diode (OLED) display screen, and an LED display screen, etc., wherein the LED display screen includes, for example, a micro-LED display screen and a mini-LED display screen. This application embodiment does not limit the type of display screen.

[0091] Along the Z-axis, the back cover 20 is located on the side of the display screen away from the cover body. The material of the back cover 20 may include, for example, opaque materials such as plastic, vegan leather, and fiberglass; or it may include light-transmitting materials such as glass. This application embodiment does not limit the material of the back cover 20.

[0092] The middle frame 30 is located between the cover and the back cover 20. Referring to Figure 2, which is a schematic diagram of the split structure of the electronic device shown in Figure 1, the middle frame 30 includes an annular outer part 31 and a support part 32 located within the annular outer part 31 and between the display screen and the back cover 20. The annular outer part 31 and the support part 32 are fixedly connected. The annular outer part 31 and the support part 32 can be integrally formed or separately formed and then fixedly connected by welding or bonding. The material of the middle frame 30 may include, for example, plastic or metal.

[0093] The cover, the annular outer part 31, and the back cover 20 can form the entire cavity of the device. The mobile phone 100 also includes printed circuit boards (PCBs) 40, a battery 50, a speaker 60, a PCB support 70, a flash 80, and a camera 90. The PCB 40 includes a main board 41 and a sub-board 42, which are located on opposite sides of the battery 50 along the Y-axis. A flexible printed circuit (FPC) (not shown) connects the main board 41 and the sub-board 42 to enable data and signal transmission between them.

[0094] It is understood that Figures 1 and 2, as well as the related figures below, only schematically show some components included in the mobile phone 100. The actual shape, size, position, and construction of these components are not limited by Figures 1 and 2, as well as the figures below. Furthermore, when the electronic device is of other forms, the electronic device 100 may not include at least one of the following: display module 10, mid-frame 30, PCB 40, FPC, battery 50, printed circuit board bracket 70, and flash 80.

[0095] The display screen, motherboard 41, sub-board 42, FPC connecting motherboard 41 and sub-board 42, battery 50, speaker 60, printed circuit board bracket 70, flash 80, and camera 90 are located within the overall cavity of the device. At least some of the structures within the overall cavity are supported by a support member 32. For example, the display module 10 can be attached to the support member 32 via an adhesive layer, and the support member 32 supports the display module 10, etc. The adhesive layer can be an adhesive structure such as adhesive backing that allows the display module 10 to be attached to the support member 32.

[0096] The motherboard 41 houses a control chip. This control chip may include a System-on-Chip (SoC) and an Application Processor (AP). The SoC may integrate a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), and a Modem.

[0097] Sub-board 42 integrates an antenna RF front-end, Universal Serial Bus (USB) devices, etc.

[0098] Battery 50 is used to supply power to components inside mobile phone 100, such as the display screen, components on motherboard 41, components on sub-board 42, and speaker 60, to ensure their normal operation.

[0099] The speaker 60 is used to convert audio signals such as music and speech into sound, supporting the function of external audio playback. There can be one or more speakers 60; Figure 2 illustrates this using two speakers 60 as an example. The two speakers 60 can include a first speaker 60a and a second speaker 60b. The first speaker 60a can be disposed adjacent to the main board 40 (or, the main board 40 has a clearance hole, and the first speaker 60a is located at the clearance hole of the main board 40), and the first speaker 60a can be a speaker unit or a speaker module. The second speaker 60b can be disposed adjacent to the sub-board 50 (or, the sub-board 50 has a clearance hole, and the second speaker 60b is located at the clearance hole of the sub-board 50), and the sub-board 50 can be a speaker unit or a speaker module.

[0100] The first speaker 60a is electrically connected to the motherboard 40. The second speaker 60b is electrically connected to the sub-board 50. The actual placement of the first speaker 60a and the second speaker 60b is similar to that in the prior art, and will not be repeated here. The motherboard 40 sends audio signals to the first speaker 60a, which is electrically connected to it, and transmits them to the second speaker 60b via the FPC 60 and the sub-board 50. The signals are then converted into sound output by the first speaker 60a and the second speaker 60b. Specifically, the speaker 60 has a sound outlet channel 600, meaning that both the first speaker 60a and the second speaker 60b have a sound outlet channel 600. Correspondingly, the outer part 31 of the middle frame 30 has sound outlet holes 311 that communicate with the sound outlet channels 600 of the first speaker 60a and the second speaker 60b, respectively. The sound from the first speaker 60a and the second speaker 60b is directed to the outside of the mobile phone 100 through the sound outlet holes 311 that communicate with their sound outlet channels 600, so that it can be heard by the user.

[0101] It is understood that the printed circuit board bracket 70 may include a bracket corresponding to the motherboard 41 (i.e., the motherboard bracket), a bracket corresponding to the sub-board 42, or both. The motherboard bracket is located between the motherboard 41 and the rear cover 20, and is used to press and fix some components on the motherboard 41, and / or to support some components. The bracket corresponding to the sub-board 42 is located between the sub-board 42 and the rear cover 20, and is used to press and fix some components on the sub-board 42, and / or to support some components. This embodiment of the application uses the printed circuit board bracket 70 including the motherboard bracket as an example for illustration.

[0102] Camera 90 is used to capture still images or videos, enabling mobile phone 100 to perform functions such as image acquisition and real-time video calls. There can be multiple cameras 90; mobile phone 100 can use the cooperation of multiple cameras 90 to improve image quality and meet the user's needs for shooting in different scenarios. Multiple cameras 90 may include a main camera, a macro camera, a telephoto camera, a wide-angle camera, etc.

[0103] The flash unit 80 is used to emit light, which can illuminate the subject and provide supplementary lighting, thus achieving the supplementary lighting function.

[0104] Referring to Figures 3 and 4, Figure 3 is a schematic diagram of the back structure of an electronic device according to an embodiment of this application, and Figure 4 is a cross-sectional view of the electronic device shown in Figure 3 along the AA' direction. Figure 4 only shows a portion of the structure. The mobile phone 100 also includes a camera decorative element 91, which decorates the camera 90 to enhance the aesthetic appearance of the mobile phone 100. The camera decorative element 91 includes a fixing part 911, a decorative part 912, and a light-transmitting lens 913. The fixing part 911 includes a fixing sub-part 9111 and a protruding sub-part 9112.

[0105] The fixing part 9111 is disposed around the protruding part 9112. Along the Z-axis direction, the rear cover 20 includes an outer surface 20a and an inner surface 20b facing away from each other, and a cutout portion 21 is provided on the rear cover 20, penetrating the outer surface 20a and the inner surface 20b. The protruding part 9112 is located at the cutout portion 21, and at least a portion of the protruding part 9112 protrudes relative to the outer surface 20a of the rear cover 20. The fixing part 9111 is fixedly connected to the inner surface 20b of the rear cover 20, so that the fixing part 911 is fixedly connected to the rear cover 20.

[0106] The decorative part 912 is provided around the protruding sub-part 9112, and the decorative part 912 is fixedly connected to the outer surface 20a of the rear cover 20, so that the decorative part 912 and the rear cover 20 are fixedly connected. Along the Z-axis direction, an annular step 9121 is provided on the side of the decorative part 912 away from the rear cover 20, and the light-transmitting lens 913 is fixed on the annular step 9121, so that the light-transmitting lens 913 and the decorative part 912 are fixedly connected.

[0107] The protruding sub-part 9112 has multiple light-transmitting holes 91121, and a light-transmitting lens 913 covers the multiple light-transmitting holes 91121. A flash lamp 80 and multiple cameras 90 are respectively opposite to the multiple light-transmitting holes 91121. For example, there are two cameras 90 and three light-transmitting holes 91121, with the two cameras 90 and one flash lamp 80 respectively opposite to the three light-transmitting holes 91121. That is, the projection of one light-transmitting hole 91121 onto the plane formed by the X and Y axes overlaps with one of the cameras 90, the projection of another light-transmitting hole 91121 onto the plane formed by the X and Y axes overlaps with another camera 90, and the projection of yet another light-transmitting hole 91121 onto the plane formed by the X and Y axes overlaps with the flash lamp 80. That is, one of the light-transmitting holes 91121 can expose at least a portion of one of the cameras 90, another light-transmitting hole 91121 can expose at least a portion of another camera 90, and yet another light-transmitting hole 91121 can expose at least a portion of the flash 80. In this way, the light emitted by the flash 80 can be transmitted through its corresponding light-transmitting hole 91121 and the light-transmitting lens 913 to illuminate the object being photographed, providing supplemental lighting for the object; the camera 90 can collect the light source through its corresponding light-transmitting hole 91121 and the light-transmitting lens 913 to capture still images or videos.

[0108] Furthermore, at least a portion of the flash 80 and the camera 90 can protrude above the back cover 20 through their respective light-transmitting holes 91121. In other words, the portions of the flash 80 and the camera 90 that protrude above the back cover 20 can be accommodated within the camera decorative piece 91 (specifically accommodated within the protruding sub-part 9112), which is beneficial for the slim and lightweight design of the phone 100.

[0109] Since the decorative part 912 is located on the outer surface 20a of the back cover 20, its shape affects the appearance of the mobile phone 100. For example, the shape of the decorative part 912 can be a rounded square ring (as shown in Figure 3), a racetrack-shaped ring (not shown), a circular ring (not shown), or a rounded rectangular ring (not shown), etc. The racetrack shape can be: a shape formed by two arcs and a rectangle on opposite sides, wherein the two arcs are opposite each other and each arc is adjacent to its opposite side.

[0110] It is understood that the shapes of the light-transmitting lens 913 and the hollowed-out portion 21 correspond to those of the decorative portion 912. For example, when the decorative portion 912 is a rounded square ring, the shapes of the light-transmitting lens 913 and the hollowed-out portion 21 are both rounded squares; when the decorative portion 912 is a rounded rectangular ring, the shapes of the light-transmitting lens 913 and the hollowed-out portion 21 are both rounded rectangles; and when the decorative portion 912 is a circular ring, the shapes of the light-transmitting lens 913 and the hollowed-out portion 21 are both circular.

[0111] As mentioned above, when there is one flash unit 80 and two cameras 90, there are three light-transmitting holes 91121. However, to ensure a good appearance for the electronic device, the decorative part 912 is still a rounded square ring. Two of the light-transmitting holes 91121 (which can be the light-transmitting holes 91121 corresponding to the two cameras 90) are arranged sequentially along the X-axis, and the other light-transmitting hole 91121 (which can be the light-transmitting hole 91121 corresponding to the flash unit 80) and one of the two light-transmitting holes 91121 are arranged sequentially along the Y-axis. This results in wasted space in the protruding part; that is, the space adjacent to the flash unit 80 along the X-axis is not utilized.

[0112] Based on this, this application provides a housing assembly that can be applied to electronic devices, replacing the aforementioned back cover and camera trim. In this housing assembly, by placing the speaker core within the trim, the thickness of the trim (dimension in the Z-axis direction) compared to the overall device thickness is fully utilized. This also avoids the speaker occupying space within the overall device cavity; for example, it does not occupy additional PCB 40 layout space (i.e., PCB 40 does not need to avoid obstructing the speaker).

[0113] The housing assembly provided in the embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0114] Referring to Figures 5, 6, and 7, Figure 5 is a front view of a housing assembly provided in an embodiment of this application, Figure 6 is a rear view of a housing assembly provided in an embodiment of this application, and Figure 7 is a schematic diagram of the split structure of a housing assembly provided in an embodiment of this application. The housing assembly 200 includes a decorative structure 201 and the aforementioned rear cover 20. The decorative structure 201 includes a speaker core 202 and a decorative element 203. The decorative element 203 includes a fixing part 204, a decorative part 205, and a light-transmitting lens 206. The fixing part 204 includes a protruding sub-part 2040, which includes a front shell 2042 and a cover 2043.

[0115] Referring to Figures 8 and 9, Figure 8 is a front structural diagram of a fixing part provided in an embodiment of this application, and Figure 9 is a rear structural diagram of a fixing part provided in an embodiment of this application. To more clearly illustrate the internal structure of the fixing part in this embodiment, the cover 2043 is not shown in Figures 8 and 9. The front shell 2042 includes an upper wall 20421 and an annular sidewall 20422 surrounding the periphery of the upper wall 20421. The upper wall 20421 and the annular sidewall 20422 can be integrally formed or separately formed and then fixedly connected together by welding, gluing, or other methods. The protruding sub-part 2040 also includes a retaining wall 2044, which is disposed on the upper wall 20421 and divides the upper wall 20421 into a speaker mounting area Q1 and at least one light-transmitting hole mounting area Q2. In this embodiment, the number of light-transmitting hole mounting areas Q2 is two, as an example. The upper wall 20421 and the enclosure 2044 can be integrally formed or separately formed and then fixed together by welding, gluing, or other methods. The upper wall 20421 has at least one light-transmitting hole 20423 corresponding to the light-transmitting hole setting area Q2. In this embodiment, the upper wall 2042 has two light-transmitting holes 20423 corresponding to one of the light-transmitting hole setting areas Q2, and the upper wall 2042 has one light-transmitting hole 20423 corresponding to the other light-transmitting hole setting area Q2, as illustrated in the following description. The light-transmitting holes 20423 can respectively expose the flash lamp 80 and the camera 90. The light emitted by the flash lamp 80 can illuminate the object being photographed through its corresponding light-transmitting hole 20423, and the camera 90 can collect the light source through its corresponding light-transmitting hole 20423.

[0116] A first fixing step 2045 is provided on the upper wall 2042 corresponding to the speaker mounting area Q1. Referring to Figure 10, which is a positional relationship diagram between a fixing part and a speaker core according to an embodiment of this application, the speaker core 202 is located in the speaker mounting area Q1 and fixed to the first fixing step 2045. Exemplarily, the speaker core 202 is fixed to the first fixing step 2045 by applying adhesive or backing adhesive. The first fixing step 2045 not only limits the distance between the speaker core 202 and the upper wall 20421, but also fixes the speaker core 202.

[0117] Referring to Figures 11 and 12, Figure 11 is a schematic diagram of the rear structure of a fixing part provided in an embodiment of this application from a certain perspective, and Figure 12 is a cross-sectional view of the fixing part shown in Figure 11 along the BB' direction. The upper wall 20421, the enclosure 2044, the annular sidewall 20422, and the speaker core 202 form a front cavity Q3. The portion of the annular sidewall 20422 that forms the front cavity Q3 has at least one sound outlet channel 204221. This embodiment of the application describes the example of having two sound outlet channels 204221 in the portion of the annular sidewall 20422 that forms the front cavity Q3. When the speaker emits sound through two sound outlet channels 204221, the sound outlet area is large, which can improve the performance of the device, enhance the overall sound quality, and reduce the risk of sound quality failure due to blockage of the sound outlet during later use of the electronic device.

[0118] A second sealing unit 2046 is provided within the gaps between the sidewall of the speaker core 202 and the portion of the enclosure 2044 that forms the front cavity Q3, and within the gaps between the sidewall of the speaker core 202 and the portion of the annular sidewall 20422 that forms the front cavity Q3. The second sealing unit 2046 seals the gaps between the sidewall of the speaker core 202 and the portion of the enclosure 2044 that forms the front cavity Q3, and within the gaps between the sidewall of the speaker core 202 and the annular sidewall 20422 that forms the front cavity Q3, ensuring the airtightness of the front cavity Q3 and preventing the front cavity Q3 from communicating with the rear cavity Q4 (described below) through the gaps between the sidewall of the speaker core 202 and the enclosure 2044 that forms the front cavity Q3, thus preventing any impact on sound quality.

[0119] Referring again to Figures 9 and 10, a positioning post 2047 is provided on the side of the enclosure 2044 opposite to the upper wall 20421. The flexible circuit board 2021 of the speaker core 202 has a positioning hole, and the positioning post 2047 is located in the positioning hole. The positioning post 2047 can both position the flexible circuit board 2021, making it easy for the flexible circuit board 2021 to be placed on the surface of the enclosure 2044 opposite to the upper wall 20421, and fix the flexible circuit board 2021 to prevent it from moving in the X-axis or Y-axis direction.

[0120] Based on this, in order to better fix the flexible circuit board 2021 of the speaker core 202 and prevent it from moving and being damaged in the Z-axis direction when the electronic device is dropped, an adhesive structure such as backing adhesive can be provided between the surface of the enclosure 2044 away from the upper wall 20421 and the flexible circuit board 2021 of the speaker core 202. That is, the flexible circuit board 2021 of the speaker core 202 is further fixed to the surface of the enclosure 2044 away from the upper wall 20421 by the adhesive structure such as backing adhesive.

[0121] Referring again to Figures 11 and 12, the cover 2043 is disposed on the surface of the annular sidewall 20422 facing away from the upper wall 20421, and covers the speaker core 202. The cover 2043, the enclosure 2044, the annular sidewall 20422, and the speaker core 202 form the rear cavity Q4. The cover 2043 can be fixedly connected to the surface of the annular sidewall 20422 facing away from the upper wall 20421 by ultrasonic welding, adhesive application, or other methods. Similarly, the cover 2043 can be fixedly connected to the surface of the enclosure 2044 facing away from the upper wall 20421 by ultrasonic welding, adhesive application, or other methods. This ensures the sealing of the rear cavity Q4.

[0122] In other words, the speaker core 202, the upper wall 20421, the annular side wall 20422, the enclosure 2044, and the cover 2043 constitute a speaker module. The upper wall 20421, the annular side wall 20422, the enclosure 2044, and the cover 2043 (equivalent to the outer shell of the speaker module) can form a decorative cavity. The speaker core 202 is located in the decorative cavity, which divides the decorative cavity into a front cavity Q3 and a rear cavity Q4.

[0123] Furthermore, referring to 11, the cover 2043 may extend to at least one light-transmitting hole area Q2. This extension of the cover 2043 to at least one light-transmitting hole area Q2 can be understood as the portion of the cover 2043 extending to the light-transmitting hole area Q2 being opposite to the position of the upper wall 20421 corresponding to the light-transmitting hole area Q2. In this embodiment, the description uses the cover 2043 extending to one light-transmitting hole area Q2 as an example.

[0124] The portion of the cover 2043 extending into the light-transmitting hole area Q2 also has at least one light-transmitting hole 20431. The light-transmitting hole 20431 on the portion of the cover 2043 extending into the light-transmitting hole area Q2 corresponds one-to-one with the light-transmitting hole 20423 on the upper wall 20421 at the corresponding position in the light-transmitting hole area Q2. A first sealing unit 2048 is provided between the upper wall 20421 and the cover 2043, and the first sealing unit 2048 surrounds the light-transmitting hole 20431 of the cover 2043 and the light-transmitting hole 20423 of the upper wall 20421.

[0125] For example, the cover 2043 extends to a light-transmitting hole area Q2, wherein the upper wall 20421 has two light-transmitting holes 20423 corresponding to the light-transmitting hole area Q2. Correspondingly, the portion of the cover 2043 extending to the light-transmitting hole area Q2 also has two light-transmitting holes 20431. One of the light-transmitting holes 20423 on the upper wall 20421 corresponds to one of the light-transmitting holes 20431 on the cover 2043, meaning the projections of the two light-transmitting holes (light-transmitting hole 20423 and light-transmitting hole 20431) onto the plane formed by the X and Y axes overlap (e.g., coincide, partially overlap, or one is located within the other). A first sealing unit 2048 is located between the upper wall 20421 and the cover 2043, and surrounds the light-transmitting holes 20423 and 2043. 1; Another light-transmitting hole 20423 on the upper wall 20421 corresponds to another light-transmitting hole 20431 on the cover 2043, that is, the projections of the two light-transmitting holes (light-transmitting hole 20423 and light-transmitting hole 20431) on the plane formed by the X-axis and Y-axis overlap (such as coincident, partially overlap, or one is located in the other), and another first sealing unit 2048 is located between the upper wall 20421 and the cover 2043, and surrounds the light-transmitting hole 20423 and light-transmitting hole 20431.

[0126] Referring to Figure 13, which is a cross-sectional view of the fixing part shown in Figure 11 along the CC' direction, the part of the cover 2043 extending to the light-transmitting hole setting area Q2, the enclosure 2044, the annular sidewall 20422 and the first sealing unit 2048 form an auxiliary cavity Q5, which communicates with the rear cavity Q4.

[0127] It should be noted that the first sealing unit 2048 can be an annular structure surrounding the light-transmitting holes 20423 and 20431, and the material of this annular structure can be the same as that of the upper wall 20421. In this case, the first sealing unit 2048 and the upper wall 20421 can be integrally formed, thus simplifying the manufacturing process. The first sealing unit 2048 can not only seal the auxiliary cavity Q5 to prevent gas leakage through the auxiliary cavity Q5, but also fix the flash lamp 80 and / or camera 90.

[0128] In other words, by setting the space around the camera 90 and / or flash 80 as an auxiliary cavity Q5 to increase the volume of the rear cavity Q4, audio performance can be improved.

[0129] As described above, the flexible circuit board 2021 of the speaker core 202 is fixed to the surface of the enclosure 2044 facing away from the upper wall 20421. To ensure the electrical connection between the flexible circuit board 2021 and the main board 41, refer to Figures 14 and 15. Figure 14 is a schematic diagram of the rear structure of a fixing part provided in an embodiment of this application from another perspective, and Figure 15 is a partial enlarged view of the EE area of ​​the fixing part shown in Figure 14. There is a gap between the enclosure 2044 and the cover 2043, and a part of the flexible circuit board 2021 of the speaker core 202 is exposed through the gap. In order to further ensure the sealing of the auxiliary cavity Q5, a fourth sealing unit 2049 is provided at the gap between the enclosure 2044 and the cover 2043. The fourth sealing unit 2049 is used to cover the gap between the enclosure 2044 and the cover 2043. A spring can be provided between a preset area (such as the FF area) of the part of the flexible circuit board 2021 exposed through the gap and the main board 41 to realize the electrical connection between the flexible circuit board 2021 and the main board 41.

[0130] Referring to Figure 16 and in conjunction with Figure 8, Figure 16 is a cross-sectional view of the housing assembly shown in Figure 5 along the DD' direction. The fixing part 204 includes a fixing sub-part 2041, which surrounds the protruding sub-part 2040. The fixing sub-part 2041 can be integrally formed with the annular sidewall 20422, thus simplifying the manufacturing process. The fixing sub-part 2041 is fixedly connected to the inner surface 20b of the back cover 20 by an adhesive layer (not shown in the figure) formed by adhesive backing or dispensing, so that the fixing part 204 is fixedly connected to the back cover 20. Since the fixing sub-part 2041 is located on the inner surface 20b of the back cover 20, the fixing sub-part 2041 does not affect the aesthetic appearance of the electronic device when fixing the fixing part 204.

[0131] At the same time, the protruding sub-part 2040 is located inside the hollow portion 21 of the rear cover 20, and a portion of the protruding sub-part 2040 protrudes from the outer surface 20a of the rear cover 20. Since a portion of the protruding sub-part 2040 protrudes from the outer surface 20a of the rear cover 20, when the speaker core 202 is placed inside the protruding sub-part 2040, the characteristic that the protruding sub-part 2040 is thicker than the overall thickness can be fully utilized, resulting in a larger rear cavity volume for the speaker and improving the sound quality of the electronic product.

[0132] Referring to Figures 17-19, Figure 17 is a front structural diagram of a decorative part provided in an embodiment of this application, Figure 18 is a rear structural diagram of a decorative part provided in an embodiment of this application, and Figure 19 is a cross-sectional view of the housing assembly shown in Figure 5 along the GG' direction. The decorative part 205 includes a decorative sub-part 2051 and at least one sealing sub-part 2052. This embodiment of the application describes the example with two sealing sub-parts 2052. The decorative sub-part 2051 surrounds the portion of the fixing sub-part 2041 that protrudes from the outer surface 20a of the rear cover 20. The sealing sub-part 2052 is located between the decorative sub-part 2051 and the portion of the fixing sub-part 2041 that has a sound outlet channel 204221. The sealing sub-part 2052 has a connecting hole 20521, and the decorative sub-part 2051 has at least one sound outlet hole 20511. This embodiment of the application describes the example with two sound outlet holes 20511. One of the connecting holes 20521 connects one of the sound outlet channels 204221 and one of the sound outlet holes 20511; the other connecting hole 20521 connects another sound outlet channel 204221 and another sound outlet hole 20511.

[0133] The decorative sub-section 2051 can be used to decorate electronic devices and enhance their aesthetic appearance. The sealing sub-section 2052 can prevent gas leakage between the sound outlet channel 204221 and the sound outlet 20511, thereby improving sound quality.

[0134] In some embodiments, continuing to refer to FIG19, the decorative structure 201 further includes a third sealing unit 207, which is located between the sealing sub-part 2052 and the fixing sub-part 2041, and surrounds the sound outlet channel 204221 and the connecting hole 20521.

[0135] For example, when there are two sound outlet channels 204221 and two sealing sub-parts 2052 (correspondingly, there are two connecting holes 20521), the number of third sealing units 207 is also two, that is, the number of third sealing units 207 is the same as the number of sound outlet channels 204221 and the number of sealing sub-parts 2052. One of the third sealing units 207 surrounds one of the sound outlet channels 204221 and the connecting hole 20521 communicating with the sound outlet channel 204221, and the other third sealing unit 207 surrounds another sound outlet channel 204221 and the connecting hole 20521 communicating with the sound outlet channel 204221.

[0136] The third sealing unit 207 may include foam and / or double-sided adhesive, etc., which have both adhesive and sealing functions. The third sealing unit 207 can prevent gas from leaking from the gap between the sound outlet channel 204221 and the connecting hole 20521 communicating with the sound outlet channel 204221, thereby further improving the sound quality.

[0137] In some embodiments, continuing to refer to FIG19, the housing assembly 200 further includes a dustproof structure 208, which at least covers the sound outlet channel 204221. The dustproof structure 208 prevents external dust and other contaminants from entering the front cavity Q3, thereby providing dust protection for the speaker. Exemplarily, the dustproof structure 208 may include a dustproof mesh or other structure that provides dust protection without obstructing airflow.

[0138] In some embodiments, referring again to Figures 17-19, the decorative portion 205 further includes a second fixed step 2053, which is annular. The decorative sub-part 2051 is disposed around the second fixed step 2053. Referring to Figure 8, along the Z-axis direction, the upper wall 20421 has a third fixed step 204222 on the side opposite to the cover 2043, which is annular. Along the Z-axis direction, the second fixed step 2053 includes a first surface 20531 and a second surface 20532. The second surface 20532 of the second fixed step 2053 can be fixedly connected to the third fixed step 204222 by an adhesive layer (not shown in the figures) formed by adhesive backing or dotting, so that the decorative portion 205 is fixedly connected to the fixed portion 204. The light-transmitting lens 206 can be fixedly connected to the first surface 20531 of the second fixed step 2053 via an adhesive layer (not shown in the figure) formed by adhesive backing or dotting, and cover the light-transmitting hole 204221 on the upper wall 20421. By covering some structures with the light-transmitting lens 206, the aesthetic appearance of the electronic device is further enhanced. For example, the light-transmitting lens 206 may include a structure that does not affect light transmission, such as glass.

[0139] The specific location of the aforementioned sound outlet 20511 is not limited in this embodiment, as long as it can deliver sound outside the electronic device and be heard by the user.

[0140] In some possible implementations, continuing to refer to Figures 18 and 19, a partial recess (e.g., a recess depth of H0, where H0 is 2 mm, 3 mm, 4 mm, 5 mm, or 6 mm, etc.) forms at least one notch in the surface of the decorative sub-part 2051 that contacts the outer surface 20a of the back cover 20. The notch and the outer surface 20a of the back cover 20 form a sound outlet 20511.

[0141] In some other possible implementations, see Figure 20, which is another cross-sectional view of the housing assembly shown in Figure 5 along the GG' direction. A sound outlet 20511 can be opened at the edge of the third fixed step 204222, wherein the light-transmitting lens 206 avoids the sound outlet 20511.

[0142] The location of the above-mentioned sound outlet 20511 is relatively concealed, which can both guide the sound out of the electronic device and not affect the appearance of the electronic device.

[0143] As described above, the printed circuit board support 70 is opposite to the PCB 40 and can press and fix some devices on the PCB 40, and / or support some devices. In this embodiment, referring to Figure 21, which is a diagram showing the film layer relationship between a housing assembly and a printed circuit board support provided in this embodiment, the printed circuit board support 70 can also be extended to the speaker mounting area Q1, since a fifth sealing unit 71 is provided between the printed circuit board support 70, the annular sidewall 20422, and the enclosure 2046. That is, the printed circuit board support 70, the fifth sealing unit 71, the enclosure 2046, the annular sidewall 20422, and the speaker core 202 form the rear cavity Q4.

[0144] In other words, by reusing the printed circuit board bracket 70 as a cover, there is no need to set up a cover, which simplifies the structure of electronic devices, reduces the amount of assembly, and lowers assembly costs.

[0145] In summary, when the housing assembly provided in this application is applied to an electronic device, by placing the speaker core in the decorative part, the characteristic that the decorative part is thicker than the overall thickness (dimension in the Z-axis direction) can be fully utilized, resulting in a larger radiation area and a larger cavity space. For example, the space of the speaker rear cavity Q4 is larger, which is beneficial to improving the audio effect. Especially when the decorative sub-part 2051 is a rounded square ring, the light-transmitting lens 206 and the hollow part 21 are both rounded squares, and the number of flash lamps 80 is one, the number of cameras 90 is two, and the number of light-transmitting holes 20423 is three, the speaker core 202 can be accommodated without increasing the volume of the decorative structure 201, and the decorative structure 201 can be more fully utilized. Of course, the shape of the decorative sub-part 2051, the shape of the light-transmitting lens 206 and the hollow part 21, the number of cameras 90, etc., are not limited to these.

[0146] Furthermore, the housing assembly provided in this application embodiment does not affect the original assembly relationship between the camera, flash and motherboard 41, and does not occupy additional space on PCB 40.

[0147] Furthermore, referring to Figure 22, which is an application scenario diagram of the housing assembly provided in this application embodiment applied to an electronic device, as shown in (1) of Figure 22, when the electronic device only includes the speaker in the housing assembly 200, since there is no need to set the speaker near the motherboard 41 and the sub-board 42, the space occupied by the speaker on the printed circuit board can be reduced. Moreover, since the housing assembly makes the cavity of the speaker larger, it will not affect the audio effect of the electronic device, and it has a better audio effect than a traditional single speaker. As shown in (2) and (3) of Figure 22, when the electronic device not only includes the speaker in the housing assembly 200, but also includes a traditional speaker (in Figure 2, the first speaker 60a set near the motherboard 41 or the second speaker 60b set near the sub-board 42), the audio effect is better than that of the existing electronic device which includes two traditional speakers, and the space occupied by one speaker on the printed circuit board can be reduced, increasing the stacking space. As shown in (4) of Figure 22, when the electronic device includes not only the speaker inside the housing assembly 200, but also two conventional speakers (the first speaker 60a adjacent to the motherboard 41 and the second speaker 60b adjacent to the sub-board 42 in Figure 2), a three-speaker system can be formed. The speaker inside the housing assembly can use a low-frequency unit to significantly improve the low frequencies, thereby improving the overall audio effect. In addition, the three-speaker system, combined with software algorithm tuning, can achieve features such as spatial audio and privacy calls.

[0148] Any content in the various embodiments of this application, as well as any content in the same embodiment, can be freely combined. Any combination of the above content is within the scope of this application.

[0149] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A housing assembly, characterized in that, include: The main structure has at least one hollowed-out portion; The decorative structure includes a decorative element and a speaker core, at least a portion of which is located in the hollowed-out portion and protrudes from the outer surface of the main structure; The decorative element has at least one light-transmitting hole in the hollowed-out portion, and the portion of the decorative element protruding from the outer surface of the main structure has at least one notch, the notch and the outer surface of the main structure forming a sound-emitting hole; The decorative element includes a decorative cavity and at least one sound outlet channel. The speaker core is located in the decorative cavity and divides the decorative cavity into a front cavity and a rear cavity. The sound outlet channel connects the front cavity and the sound outlet hole.

2. The housing assembly according to claim 1, characterized in that, The decorative component includes a decorative part and a fixing part; at least a portion of the fixing part is located in the hollowed-out part and protrudes from the outer surface of the main structure, and the decorative part at least surrounds the portion of the fixing part that protrudes from the outer surface of the main structure; The fixing part located in the hollow part has at least one light-transmitting hole, and the fixing part includes the decorative cavity and at least one sound outlet channel; the decorative part has at least one notch.

3. The housing assembly according to claim 2, characterized in that, The fixing part includes a protruding sub-part, which includes a front shell, a cover, and a barrier. The front shell includes an upper wall and an annular sidewall surrounding the periphery of the upper wall. The enclosure is installed on the upper wall and divides the upper wall into a speaker installation area and at least one light-transmitting hole installation area; the light-transmitting hole installation area of ​​the upper wall has at least one light-transmitting hole. The speaker core is located in the speaker mounting area; the upper wall, the enclosure, the side wall, and the speaker core form the front cavity; the portion of the annular side wall surrounding the front cavity has at least one sound outlet channel. The cover is located on the side of the annular sidewall opposite to the upper wall and at least covers the speaker core. The cover, the enclosure, the annular sidewall, and the speaker core form the rear cavity.

4. The housing assembly according to claim 3, characterized in that, The cover extends to at least one of the light-transmitting hole areas; the portion of the cover extending to the light-transmitting hole area also has at least one light-transmitting hole, and the light-transmitting holes on the cover correspond one-to-one with the light-transmitting holes on the upper wall. A first sealing unit is provided between the upper wall and the cover, and the first sealing unit surrounds the light-transmitting hole of the cover and the light-transmitting hole of the upper wall; The cover, the enclosure, the annular sidewall, and the first sealing unit form an auxiliary cavity, which communicates with the rear cavity.

5. The housing assembly according to claim 3 or 4, characterized in that, The protruding sub-part also includes a first fixing step and a second sealing unit, wherein the first fixing step is located in the speaker mounting area; the speaker core is fixed on the first fixing step; The second sealing unit surrounds the sidewall of the speaker core and is located in the gap between the sidewall of the speaker core and the enclosure, as well as the gap between the sidewall of the speaker core and the annular sidewall.

6. The housing assembly according to any one of claims 3-5, characterized in that, The fixing part further includes a fixing sub-part, which is disposed around the protruding sub-part; The fixing part is fixedly connected to the inner surface of the main structure so that the fixing part is fixedly connected to the main structure.

7. The housing assembly according to any one of claims 2-6, characterized in that, The decorative part includes a decorative sub-part and at least one sealing sub-part; the sealing sub-part has a communicating hole, and the decorative sub-part has at least one notch; The decorative sub-parts at least surround the portion of the fixing part that protrudes from the outer surface of the main structure; The sealing sub-part is located between the decorative sub-part and the part of the fixing part that has the sound outlet channel, and the connecting hole connects the sound outlet channel and the sound outlet hole.

8. The housing assembly according to claim 7, characterized in that, The decorative structure also includes a third sealing unit, which is located between the sealing sub-part and the fixing part, and surrounds the sound outlet channel and the connecting hole.

9. The housing assembly according to claim 8, characterized in that, The housing assembly also includes a dustproof structure that at least covers the sound outlet channel.

10. The housing assembly according to any one of claims 7-9, characterized in that, The notch is formed by a partial depression on the surface of the decorative sub-part that contacts the outer surface of the main structure.

11. The housing assembly according to any one of claims 7-10, characterized in that, The decorative part further includes a second fixed step, which is annular; the decorative sub-part is arranged around the second fixed step. The decorative element also includes a light-transmitting lens, which is disposed on the second fixed step and covers the light-transmitting hole.

12. The housing assembly according to any one of claims 7-11, characterized in that, The hollowed-out portion is square in shape, and the decorative sub-part is a square ring in shape; The fixing part located in the hollow part has three light-transmitting holes, and the three light-transmitting holes and the speaker core are arranged side by side.

13. The housing assembly according to claim 12, characterized in that, The fixing part includes two sound outlet channels; the decorative sub-part has two notches, the two notches and the outer surface of the main structure form two sound outlet holes, the two sound outlet holes correspond to the two sound outlet channels respectively, and the two sound outlet holes are located on different sides of the square ring respectively.

14. The housing assembly according to claim 3, characterized in that, The flexible circuit board of the speaker core is fixed to the side of the enclosure away from the upper wall; there is a gap between the enclosure and the cover, and a portion of the flexible circuit board is exposed through the gap; The protruding sub-part also includes a fourth sealing unit, which is used to cover the gap between the enclosure and the cover.

15. The housing assembly according to claim 14, characterized in that, The enclosure is provided with a positioning post on the side away from the upper wall, and the flexible circuit board of the speaker core has a positioning hole, with the positioning post located in the positioning hole.

16. An electronic device, characterized in that, Includes the housing assembly as described in any one of claims 1-15.

17. The electronic device according to claim 16, characterized in that, The electronic device also includes a printed circuit board and a printed circuit board support, and the flexible circuit board of the speaker core is electrically connected to the printed circuit board; The decorative component includes a decorative part and a fixing part; the fixing part includes a protruding sub-part, the protruding sub-part includes a front shell and a enclosure, the front shell includes an upper wall and an annular side wall surrounding the periphery of the upper wall; The enclosure is installed on the upper wall and divides the upper wall into a speaker installation area and at least one light-transmitting hole installation area; the light-transmitting hole installation area of ​​the upper wall has at least one light-transmitting hole. The speaker core is located in the speaker mounting area; the upper wall, the enclosure, the annular sidewall, and the speaker core form the front cavity; the portion of the annular sidewall surrounding the front cavity has at least one sound outlet channel. The printed circuit board bracket extends to the speaker mounting area, and a fifth sealing unit is provided between the printed circuit board bracket, the annular sidewall, and the enclosure; The printed circuit board bracket, the fifth sealing unit, the enclosure, the annular sidewall, and the speaker core form the rear cavity.

18. The electronic device according to claim 16 or 17, characterized in that, The electronic device also includes at least one speaker.

19. The electronic device according to claim 18, characterized in that, The electronic device also includes two speakers, which are located at opposite ends of the electronic device.

20. The electronic device according to any one of claims 16-19, characterized in that, The electronic device also includes a flash and at least one camera, with the light-transmitting hole exposing the flash and the camera.

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