Host module and notebook computer

Abstract

This invention discloses a host module and a laptop computer. The host module includes a base plate, a front frame, and a speaker assembly. The base plate has a first side edge, which is recessed to form a concave portion. The front frame includes a front panel and a peripheral wall panel. The front panel is arranged opposite to the base plate, and the peripheral wall panel connects the outer periphery of the base plate and the front panel. The concave portion and the peripheral wall panel together define a sound outlet hole communicating with a receiving cavity. The speaker assembly is disposed in the receiving cavity and includes a housing and a sound-emitting part. The housing fits against the base plate and together defines a sound-emitting channel. The sound-emitting part emits sound towards the sound-emitting channel, and the sound-emitting channel communicates with the sound outlet hole. This design simplifies the processing of the sound outlet hole, reduces costs, and prevents dust blockage. It also provides sufficient lateral space for the speaker unit to ensure sound quality and facilitates the thinning of the host module.

Description

Technical Field

[0001] This invention relates to the field of notebook computer technology, and in particular to a host module and a notebook computer. Background Technology

[0002] In related technologies, the sound output holes of laptop main unit modules generally adopt the form of micro-hole array, with dozens or even hundreds of small holes densely opened on the panel, peripheral wall panel or bottom plate. This structure is not only expensive to process and difficult to manufacture, requiring laser drilling or precision stamping, but the dense small holes are also very easy to be blocked by dust and foreign objects in daily use, resulting in sound attenuation and significant deterioration of sound quality after long-term use. Summary of the Invention

[0003] The main objective of this invention is to propose a host module and a laptop computer, aiming to solve the problem in related technologies where the sound outlet of the host module of a laptop computer is easily blocked, leading to sound attenuation and deterioration in sound quality.

[0004] To achieve the above objectives, an embodiment of the first aspect of the present invention provides a host module, comprising: The base plate has a first side edge, which is recessed to form a concave portion. The face frame includes a front panel and a peripheral wall panel. The front panel and the bottom plate are arranged opposite to each other. The peripheral wall panel is located between the bottom plate and the front panel, and the peripheral wall panel is connected to the outer periphery of the bottom plate and the outer periphery of the front panel respectively. The bottom plate and the face frame together define a receiving cavity. The recessed portion and the peripheral wall panel together define a sound outlet that communicates with the receiving cavity. A speaker assembly is disposed in a receiving cavity. The speaker assembly includes a housing and a sound-emitting part connected to the housing. The housing is attached to a base plate and together with the base plate defines a sound-emitting channel. The sound-emitting part emits sound towards the sound-emitting channel. The sound channel is connected to the sound outlet so that the sound emitted by the sound-producing part can be exported through the sound outlet.

[0005] A second aspect of the present invention also provides a laptop computer, including a display module and a host module as described above, wherein the display module is connected to the host module.

[0006] In some embodiments, the housing defines an inner cavity and a sound-emitting hole communicating with the inner cavity, the sound-emitting part is disposed in the inner cavity, and the diaphragm of the sound-emitting part faces the sound-emitting hole. The housing also includes a baffle, which abuts against the side wall of the base plate facing the cavity, thereby the housing and the base plate together define the first sound-emitting channel. The middle part of the baffle is arranged around the sound-emitting hole, and both ends of the baffle extend toward the sound outlet hole, so that the sound-emitting channel connects to the sound outlet hole.

[0007] In some embodiments, the host module further includes a dustproof block located within the receiving cavity. One side of the dustproof block is connected to the recess and the other side is connected to the panel. Both ends of the dustproof block along the direction parallel to the side are connected to the peripheral wall plate. The dustproof block, the peripheral wall plate, and the panel together define an outer sound cavity that communicates with the sound hole. The dustproof block is provided with a sound guide hole. The first sound channel communicates with the sound outlet hole through the sound guide hole and the outer sound cavity.

[0008] In some embodiments, the housing is located on the side of the dustproof baffle away from the external sound cavity. The housing has a first sidewall facing the bottom plate and a second sidewall facing the dustproof baffle. The sound-emitting hole passes through the first sidewall. The second sidewall is spaced apart from the dustproof baffle. A baffle extends from the first sidewall to the second sidewall and abuts against the dustproof baffle, so that the second sidewall, the dustproof baffle, and the baffle together define a second sound-emitting channel. One side of the second sound-emitting channel is connected to the sound guide hole and the other side is connected to the first sound-emitting channel.

[0009] In some embodiments, the dustproof block is further provided with a dustproof net that covers the sound guide hole; The dustproof mesh is connected to the side wall of the dustproof block facing the outer acoustic cavity, and / or the dustproof mesh is connected to the side wall of the dustproof block facing the second sound-emitting channel.

[0010] In some embodiments, the host module has a working state supported on a support surface; In the working state, the distance between the first side and the support surface gradually increases along the direction that gradually approaches the peripheral wall plate.

[0011] In some embodiments, during operation, the distance between the edge of the sound outlet near the peripheral wall plate and the support surface is a first distance, and the distance between the edge of the sound outlet away from the peripheral wall plate and the support surface is a second distance, wherein the first distance is greater than the second distance.

[0012] In some embodiments, the diaphragm of the sound-generating part is tilted toward the direction of the concave portion.

[0013] In some embodiments, the panel has a keyboard area and a touchpad area, with the touchpad area located on one side of the keyboard area; Looking along the thickness of the panel, the speaker assembly and the touchpad area are both located on the same side of the keyboard area and at the corner of the bottom plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: In the technical solution of this invention, the first side of the base plate of the main module is recessed to form a concave portion, which together with the peripheral wall plate of the face frame defines a sound outlet hole that connects to the receiving cavity. This allows the sound outlet hole to be naturally formed after the concave portion of the base plate and the peripheral wall plate are assembled, replacing the micro-hole array processing method in related technologies. This eliminates the need for laser drilling or precision stamping processes, directly solving the problems of high processing costs and complex manufacturing processes for side-mounted sound outlet holes. Simultaneously, the sound outlet hole is located on the side of the base plate with its opening facing downwards, making it less prone to dust accumulation and effectively preventing blockage, thus ensuring a long-lasting and clear sound output.

[0015] Furthermore, the speaker assembly's housing and base plate are fitted together to define the sound-emitting channel. The sound-emitting part faces into this channel, and the sound is emitted through the channel and exited through the side sound outlet. Compared to a structure where the sound outlet is on the side and the speaker diaphragm faces the sound outlet (the thickness direction of the speaker diaphragm is perpendicular to the axis of the sound outlet), the layout in this design allows the sound-emitting part to emit sound towards the base plate, thus providing ample space for the speaker unit in the lateral direction, accommodating a larger speaker unit to ensure full sound quality. At the same time, the sound-emitting channel is directly formed by the housing and base plate fitting together, eliminating the need for a separate sound guide tube component. Therefore, it does not occupy additional height space of the main unit module, which is beneficial for achieving a thinner main unit module. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a first perspective view of a laptop computer according to an embodiment of the present invention; Figure 2 This is a second perspective view of a laptop computer according to an embodiment of the present invention; Figure 3 This is an exploded view of a laptop computer according to one embodiment of the present invention; Figure 4 for Figure 3 A magnified view of a portion of point A in the middle; Figure 5 This is a partial cross-sectional schematic diagram of a laptop computer according to an embodiment of the present invention; Figure 6 This is a bottom view of the speaker assembly and dustproof block combination in one embodiment of the present invention.

[0018] The attached icon numbers are explained. 200-Host Module; 210 - Base plate; 211 - First side edge; 212 - Concave part; 213 - Corner position; 220 - Front panel; 221 - Panel; 221a - Keyboard area; 221b - Touchpad area; 222 - Peripheral panel; 230 - Receiving cavity; 240 - Sound hole; 250 - Dustproof baffle; 251 - Sound guide hole; 252 - Dustproof mesh; 253 - External sound cavity; 260 - Speaker assembly; 261 - Housing; 261a - First sidewall; 261b - Second sidewall; 261c - Inner cavity; 261d - Sound hole; 261e - Rib; 262 - Sound-producing part; 262a - Diaphragm; 270 - First vocal channel; 280 - Second sound channel.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] Currently, most sound holes are manufactured using a micro-hole array process. Dozens or even hundreds of tiny holes are densely created on the side panels or base of the front frame using laser drilling or precision stamping. However, this micro-hole array manufacturing method requires high equipment precision and advanced technology, resulting in high processing costs and complex production processes. Furthermore, the densely packed micro-holes easily accumulate dust and foreign objects during daily use. Over time, dust clogs the micro-holes, causing sound attenuation and a significant deterioration in sound quality, negatively impacting the user experience.

[0022] Meanwhile, as laptops continue to evolve towards thinner and lighter designs, the thickness of the chassis is constantly being reduced, creating inherent challenges in speaker placement. If the speaker's sound-emitting part is mounted directly towards the side sound outlet, the overall lateral size of the speaker unit, especially the diaphragm area, will be severely constrained by the chassis thickness, making it difficult to accommodate a large speaker unit to ensure low-frequency performance and overall sound quality. If the sound-emitting part faces the bottom plate, i.e., downwards, an additional independent sound guide tube or complex sound guiding path is required to guide the sound from below the bottom plate to the side outlet. This method increases the number of parts and assembly steps, and the height of the sound guide tube itself further encroaches on the already extremely limited height space, further hindering the thinning of the main unit module. Therefore, in the existing thin and light laptop structure, it is difficult to simultaneously achieve the goals of sound outlet processing cost, dust protection, sound quality assurance, and chassis thinning in a single solution.

[0023] In view of this, see Figures 1-6 This application provides a host module 200 and a laptop computer including the host module. By forming a recessed portion 212 on the first side 211 of the base plate 210 and splicing it with the peripheral wall plate 222 of the front frame 220 to form a sound hole 240, and attaching the housing 261 of the speaker assembly 260 to the base plate 210 to form a lateral sound channel, the processing technology of the sound hole is simplified, the cost is reduced and blockage is prevented, while providing sufficient lateral arrangement space for the speaker unit to ensure sound quality and achieving a thinner host module.

[0024] See Figures 1-6 Specifically, the main unit module 200 includes a base plate 210, a front frame 220, and a speaker assembly 260. The base plate 210 is a bottom support member with a first side 211. The first side 211 is recessed to form a recessed portion 212, which helps to define the sound hole 240. The front frame 220 includes a front panel 221 and a peripheral wall panel 222. The front panel 221 is arranged opposite to the base plate 210, and the peripheral wall panel 222 connects the outer periphery of the base plate 210 and the outer periphery of the front panel 221. The front frame 220 and the base plate 210 together define a receiving cavity 230. After assembly, the peripheral wall panel 222 is joined with the recessed portion 212 to jointly define the sound hole 240. The speaker assembly 260 is disposed within the receiving cavity 230, including a housing 261 and a sound-emitting part 262 connected to the housing 261. The housing 261 is attached to the base plate 210 and together with the base plate 210 defines a sound emission channel 270. The sound-emitting part 262 emits sound into the sound emission channel 270. The sound emission channel 270 connects to the sound outlet 240, forming a complete sound path from the sound-emitting part 262 to the external space. The above is only a general description of the components of the main unit module 200; its specific internal structure and cooperation will be further elaborated below.

[0025] The base plate 210 is the bottom support component of the host module 200, and has a plate-like structure with an outer peripheral edge. The outer peripheral edge of the base plate 210 includes a side edge for forming the sound outlet 240, defined as the first side edge 211. In one optional arrangement, the first side edge 211 may be located on the front side of the base plate 210, i.e., the side closer to the user when the laptop is in use; in another optional arrangement, the first side edge 211 may be located on the left or right sides of the base plate 210. A portion of the first side edge 211 is recessed inward toward the receiving cavity 230 to form a recessed portion 212. This recessed portion 212 is a contour change of the first side edge 211, manifested as a notch or depression formed by the inward retreat of the base plate 210 material from the outer edge. The recessed portion 212 penetrates the thickness of the base plate 210 in the thickness direction, but in the planar direction of the base plate 210, it is merely an inward retreat of the side contour and is not itself a closed through hole. The base plate 210 can be a metal stamping part, in which case the recessed portion 212 can be formed in one step by the shape of the corresponding position in the mold during the stamping of the metal sheet; the base plate 210 can also be a plastic injection molded part, in which case the recessed portion 212 can be formed in one step by pre-setting a corresponding cavity in the injection mold. The recessed shape of the recessed portion 212 can be in various ways. In some embodiments, the recessed portion 212 is arc-shaped, that is, a crescent-shaped notch. This shape allows for smooth material flow and uniform stress distribution in the mold during stamping. In other embodiments, the recessed portion 212 is rectangular, that is, a narrow rectangular notch. This shape allows for a simple mold structure and controllable dimensional accuracy during injection molding. In still other embodiments, the recessed portion 212 can be trapezoidal, that is, a notch shape that is wider on the outside and narrower on the inside or narrower on the outside and wider on the inside. The design intent of the recessed portion 212 is that it is not a directly machined sound hole, but rather a local shape change on the side of the base plate 210. After the base plate 210 is assembled with the face frame 220, the recessed portion 212 and the peripheral wall plate 222 naturally fit together to form the sound hole 240. Compared with the existing technology of creating a micro-hole array by laser drilling or precision stamping on the side of a pre-formed base plate, the recessed portion 212 in this solution is completed simultaneously when the base plate 210 is formed, without any secondary processing steps, and the processing cost of forming the sound hole 240 is almost zero.

[0026] The depth of the recess 212 along the first side 211 directly affects the opening area of ​​the final sound outlet 240. A greater recess depth results in a larger opening area of ​​the sound outlet 240, smoother sound transmission, lower airflow velocity, and less airflow noise; however, the structural strength of the base plate 210 at the first side 211 may be correspondingly reduced. Considering both acoustic flow requirements and structural strength, a range of 2mm to 10mm for the recess depth is recommended. The position of the recess 212 along the length of the first side 211 can be flexibly selected based on the installation position of the speaker assembly 260 within the receiving cavity 230. In one embodiment, the recess 212 is located in the middle region of the first side 211; in another embodiment, the recess 212 is positioned near one end of the first side 211. The position of the recess 212 should correspond to the end of the extension direction of the sound channel 270, so that the outlet of the sound channel 270 is precisely aligned with the area where the recess 212 is located. To improve the smoothness of sound transmission and structural reliability, the edges of the recess 212 should be rounded. Rounded edges can avoid stress concentration at sharp corners and help reduce airflow turbulence noise caused by sharp edges when sound passes through the sound outlet 240, resulting in smoother sound output. The selection of various design parameters for the recess 212 should meet the following criteria: the recess depth needs to be determined in conjunction with the material thickness and strength requirements of the base plate 210; the extension range of the recess 212 along the length of the first side 211 should ensure that the total opening area of ​​the final sound outlet 240 meets the acoustic flow area requirements of the speaker assembly 260, ensuring that no obvious airflow noise is generated at maximum volume output.

[0027] The front frame 220 is a major structural component constituting the external appearance and internal spatial framework of the host module 200, typically an integrated injection-molded part or a metal stamping and welding part. The front frame 220 includes a front panel 221 and a peripheral wall panel 222. The front panel 221 is the flat portion of the front frame 220, arranged opposite to the base plate 210, forming a height space of the receiving cavity 230 between them. The front panel 221 may have functional areas such as a keyboard area 221a and a touchpad area 221b, but these will not be detailed here. The peripheral wall panel 222 is the annular sidewall portion of the front frame 220, located between the base plate 210 and the front panel 221. Its lower end connects to the outer periphery of the base plate 210, and its upper end connects to the outer periphery of the front panel 221. The inner wall surface of the peripheral wall panel 222 faces the receiving cavity 230, and its outer wall surface faces the outside of the host module 200. The receiving cavity 230 is an internal space enclosed by the base plate 210 and the face frame 220 after assembly. Its spatial boundary is specifically formed by the inner wall surface of the base plate 210 facing the receiving cavity 230, the inner wall surface of the face panel 221 facing the receiving cavity 230, and the inner wall surface of the peripheral wall panel 222 facing the receiving cavity 230. The receiving cavity 230 is used to accommodate the speaker assembly 260 and other internal components, such as the motherboard and battery. The connection method between the base plate 210 and the face frame 220 can be flexibly selected according to product design requirements. In some embodiments, the base plate 210 and the face frame 220 are detachably connected by a circumferentially distributed snap-fit ​​structure. In other embodiments, the base plate 210 and the face frame 220 are fixedly connected by screws. In still other embodiments, the base plate 210 and the face frame 220 are permanently connected by adhesive bonding.

[0028] The sound outlet 240 is formed as a result of the assembly and mating of the base plate 210 and the face frame 220. Its formation process can be broken down into the following steps: First, the base plate 210 is formed separately, at which point the first side 211 has a recess 212. The recess 212 presents as an open notch at the edge of the base plate 210, not a closed hole. Second, the face frame 220 is formed separately, at which point the peripheral wall plate 222 forms an enclosing contour. Third, the base plate 210 and the face frame 220 are assembled, with the peripheral wall plate 222 enclosing the outer periphery of the base plate 210, and the inner wall surface of the peripheral wall plate 222 exactly covering the outer side of the recess 212. At this point, a gap is formed between the recessed edge of the recess 212 and the inner wall surface of the peripheral wall plate 222; this gap is the sound outlet 240. Therefore, the sound outlet 240 is formally defined as an opening jointly defined by the recess 212 and the peripheral wall plate 222 after assembly, connecting the receiving cavity 230 with the external space. It is not a hole opened on any single component, but rather a virtual space formed by the cooperation of two components. Depending on the shape of the recess 212, the sound outlet 240 exhibits different opening shapes. In the arc-shaped recess, the cross-section of the sound outlet 240 is crescent-shaped, with its outer opening boundary defined by the inner wall surface of the peripheral wall plate 222, and its inner opening boundary defined by the arc-shaped edge of the recess 212. In the rectangular recess, the cross-section of the sound outlet 240 is a long, narrow rectangle, with its length extending along the first side 211. In other embodiments, the inner wall surface of the peripheral wall plate 222 may be provided with a flange or stepped structure, which engages with the edge of the recess 212 to finely adjust the opening area of ​​the sound outlet 240. The design intent of the sound outlet 240 is that it is not machined from a single component, but rather formed by the shape matching and assembly of two components. This assembly method allows the sound outlet 240 to have its shape pre-set during the respective forming processes of the base plate 210 and the face frame 220, naturally forming during assembly without any post-processing. Compared to the previous solution of secondary drilling or punching on the side of a pre-formed component, the sound outlet 240 in this solution is naturally assembled by the shape matching of the components, fundamentally eliminating the independent processing step for the sound outlet. In addition, the sound outlet 240 is located on the side of the base plate 210. When the main unit module 200 is placed normally, the bottom surface of the base plate 210 faces downward, and the opening direction of the sound outlet 240 is laterally downward. Dust, under the influence of gravity, mainly falls vertically and is less likely to change its direction of movement and enter the downward-facing opening. Compared to horizontally oriented or upward-oriented micropore arrays, this has a natural dust-proof advantage.

[0029] The opening direction of the sound outlet 240 is determined by the concave direction of the recessed portion 212 and the covering direction of the peripheral wall plate 222. In the normal operating state of the main unit module 200, the base plate 210 is located below, and the opening direction of the sound outlet 240 is laterally downward, meaning sound can be directed to the side and slightly downward of the main unit module 200. Simultaneously, the downward opening reduces the possibility of dust entering by gravity or airflow. The opening area of ​​the sound outlet 240 is determined by the concave depth of the recessed portion 212 and its extension length along the first side edge 211. The design needs to balance acoustic flow area requirements with structural strength requirements. If the opening area is too small, the airflow velocity at the sound outlet 240 will be too high when the speaker assembly 260 outputs high power, easily generating audible airflow noise; if the opening area is too large, the structural strength of the base plate 210 in the first side edge 211 region may be excessively weakened. Therefore, based on the rated power of the speaker assembly 260 and the area of ​​the diaphragm 262a, the minimum opening size to satisfy the acoustic flow area needs to be calculated and determined. Based on this, the recess depth and extension length are appropriately selected in conjunction with the material strength of the base plate 210. Regarding the enhanced dustproof principle, since the host module 200 is placed on a desktop during normal use of the laptop, the bottom surface of the base plate 210 faces the desktop, and the opening of the sound outlet 240 mainly faces downwards. Dust in the air mainly settles vertically downwards due to gravity. When dust reaches the vicinity of the desktop, it is not easy for it to reverse and enter the downward-facing sound outlet 240. Compared to the micro-hole arrays opened on the top surface of the panel 221 or the side of the peripheral wall panel 222 in existing solutions, whose opening direction is usually horizontal or upwards, it is easier to accept dust that has settled or floated in the air. Therefore, the downward-facing opening in this solution has a natural physical advantage in dustproofing. Furthermore, the sound outlet 240 can be distributed in various ways along the first side 211. In some embodiments, the first side 211 has a continuous recess 212 forming a narrow, continuous sound outlet 240, allowing sound to be emitted from a single large opening with low airflow resistance. In other embodiments, the first side 211 has multiple spaced recesses 212 forming multiple spaced sound outlet segments, with solid connecting ribs of the base plate 210 remaining between each segment. This ensures that the total opening area meets acoustic requirements while enhancing the local structural strength of the base plate 210 at the first side 211.

[0030] See Figures 4-6The speaker assembly 260 is disposed within the receiving cavity 230 and serves as the sound-generating component of the main module 200. The speaker assembly 260 includes a housing 261 and a sound-generating part 262 connected to the housing 261. The housing 261 is the outer shell of the speaker assembly 260, containing an inner cavity 261c for accommodating the sound-generating part 262, and its exterior is fitted to the base plate 210. The sound-generating part 262 is the sound-generating unit of the speaker assembly 260, comprising a diaphragm 262a, which generates sound waves through vibration. Specifically, the housing 261 and the base plate 210 are fitted such that the bottom surface of the housing 261 faces the side wall of the base plate 210 facing the receiving cavity 230, resulting in large-area contact. While a completely gas-tight seal is not necessarily required, a tighter fit leads to higher sound transmission efficiency. The space between the outer wall of the housing 261 and the inner wall of the base plate 210 forms the sound-generating channel 270. The sound-emitting channel 270 can be formally defined as a virtual space, at least partially defined by the housing 261 and the base plate 210, used to transmit sound emitted from the sound-emitting part 262 from the location of the speaker assembly 260 to the sound outlet 240. The top surface of the sound-emitting channel 270 is the outer wall surface of the housing 261, and the bottom surface is the wall surface of the receiving cavity 230 side of the base plate 210. The lateral boundary is determined by the outer contour of the housing 261, and in subsequent designs, the lateral boundary can be further defined by the baffle 261e. The fitting of the housing 261 and the base plate 210 can be achieved in various structural ways. In some embodiments, the bottom surface of the housing 261 is a plane, and after fitting with the flat inner wall surface of the base plate 210, the parallel gap between the two is the sound-emitting channel 270, and the channel cross-sectional height is approximately constant. In some embodiments, the bottom surface of the housing 261 has a recessed channel. After being fitted to the base plate 210, the channel and the inner wall of the base plate 210 form a closed or semi-closed channel, which serves to pre-focus the sound. In still other embodiments, the bottom surface of the housing 261 has raised ribs, i.e., baffles 261e. The baffles 261e contact the base plate 210, and the area between the baffles 261e forms a channel. In this design, the lateral boundary of the channel is more defined, and the sound constraint effect is better. The formation of the sound-emitting channel 270 does not depend on any independent sound-conducting tube component, but is naturally formed by the housing 261 itself and the inner wall of the base plate 210 after the housing 261 is installed. The housing 261 is not a sound-conducting tube, and the base plate 210 is not a sound-conducting tube, but when the two are fitted together, they form a functional sound-conducting channel. This design integrates the sound-conducting function into existing components, eliminating additional parts and the height space they occupy.Compared with the existing solution where an additional independent sound guide tube is required when the sound-emitting part faces the base plate, the independent sound guide tube not only requires separate mold manufacturing and additional assembly process, but its own wall thickness and the height of the cavity inside the tube will squeeze the height space of the receiving cavity 230; while the sound-emitting channel 270 of this solution is naturally formed by the shell 261 and the base plate 210 fitting together, without additional parts or additional height occupation, which is conducive to the thinning of the main unit module 200.

[0031] See Figures 4-6 The sound-emitting direction of the sound-emitting part 262 is specifically defined as emitting sound towards the sound-emitting channel 270. Specifically, the diaphragm 262a of the sound-emitting part 262 faces the base plate 210, and the sound enters the sound-emitting channel 270 between the housing 261 and the base plate 210. This orientation arrangement allows the plane of the diaphragm 262a to be set substantially parallel to the plane of the base plate 210. The outer diameter of the diaphragm 262a is no longer limited by the thickness of the main module 200, but only by the plane space of the base plate 210. The plane space of the base plate 210 is much larger than the space in the thickness direction, so it can accommodate a speaker unit with a larger diaphragm area, fundamentally providing the space conditions to ensure low-frequency sound quality and overall sound fullness in a thin and light laptop. The complete sound path is as follows: the diaphragm 262a of the sound-emitting part 262 vibrates to generate sound, the sound enters the sound-emitting channel 270, propagates in a direction substantially parallel to the plane of the base plate 210, reaches the sound outlet 240, and is finally exported to the outside of the main module 200. In this acoustic path, sound propagates perpendicular to the base plate 210 when leaving the diaphragm 262a, and then changes direction to propagate parallel to the base plate 210 after entering the sound-generating channel 270. This change is naturally achieved by the fitting space between the housing 261 and the base plate 210, without the need for a separate acoustic path turning structure. The outlet of the sound-generating channel 270 is located in the first side 211 region of the base plate 210. The installation position of the housing 261 is close to the first side 211, and the sound outlet 240 is also located in the first side 211 region. Therefore, the outlet of the sound-generating channel 270 and the sound outlet 240 are directly connected in space, and the sound can be directly exported without passing through the open space of the receiving cavity 230, resulting in more concentrated sound energy transmission.

[0032] See Figures 3-5In this embodiment, the base plate 210 and the face frame 220 enclose a receiving cavity 230. The recessed portion 212 at the first side 211 of the base plate 210 and the peripheral wall plate 222 of the face frame 220 are joined to form a sound outlet 240. The speaker assembly 260 is disposed in the receiving cavity 230, and its housing 261 is fitted with the base plate 210 to form a sound-emitting channel 270. The sound-emitting part 262 emits sound towards the sound-emitting channel 270, and the sound is conducted through the sound-emitting channel 270 to the sound outlet 240 and discharged to the outside. In the above solution, firstly, the recessed portion 212 is completed in one step when the base plate 210 is formed, without the need for secondary drilling or punching, and the sound outlet 240 is naturally formed when the base plate 210 and the face frame 220 are assembled, eliminating the independent processing step of the sound outlet and significantly reducing manufacturing costs. Second, the sound outlet 240 is formed by the concave portion 212 and the peripheral wall plate 222, with the opening facing downwards. Dust is less likely to enter the opening due to gravity, and sound transmission remains unobstructed even after prolonged use. Third, the sound-emitting part 262 emits sound towards the base plate 210, and the diaphragm 262a is parallel to the plane of the base plate 210. Its outer diameter is not limited by the thickness of the body, allowing for a larger diaphragm 262a, providing a physical basis for low-frequency performance and overall sound quality. Fourth, the sound channel 270 is formed by the shell 261 and the base plate 210, eliminating the need for a separate sound guide tube and not occupying additional height space in the housing cavity 230, which is beneficial for making the main module 200 thinner in the height direction. Fifth, the sound outlet 240 is located on the side of the base plate 210, eliminating the need for a sound outlet on the surface of the panel 221, allowing the panel 221 to maintain a complete integrated appearance according to industrial design requirements. The following will further elaborate on the above solution with more detailed structural features.

[0033] In some embodiments, the housing 261 defines an inner cavity 261c and a sound-emitting hole 261d communicating with the inner cavity 261c. The inner cavity 261c is a hollow space enclosed by the inner wall of the housing 261, used to accommodate the sound-emitting part 262, and also serves as the acoustic rear cavity of the sound-emitting part 262, providing sufficient air volume for the vibration of the diaphragm 262a to ensure low-frequency response. The sound-emitting hole 261d is an opening penetrating the wall of the housing 261, connecting the inner cavity 261c and the external space of the housing 261. The opening shape of the sound-emitting hole 261d can be circular, rectangular, or other shapes adapted to the shape of the diaphragm 262a, and its opening area directly affects the sound output efficiency and frequency response characteristics. The sound-emitting part 262 is disposed in the inner cavity 261c, and the diaphragm 262a of the sound-emitting part 262 faces the sound-emitting hole 261d. The sound waves generated by the vibration of the diaphragm 262a are first directionally output to the outside of the housing 261 through the sound-emitting hole 261d, and then enter the first sound-emitting channel 270. In the above scheme, the sound-emitting part 262 is sealed and protected by the inner cavity 261c, which prevents it from being disturbed by external dust and physical collision damage; the sound-emitting hole 261d serves as a definite sound outlet, which focuses the sound waves from inside the housing 261 and directs them out, providing a stable sound source position for the subsequent precise guidance of sound by the baffle 261e and the first sound-emitting channel 270.

[0034] To overcome the shortcomings of the aforementioned reference scheme without baffles 261e, which suffers from uncontrollable sound guiding paths and significant sound energy loss, in some embodiments, the housing 261 further includes baffles 261e. The baffle 261e is a rib-like structure protruding from the housing 261 towards the base plate 210, and can be integrally formed with the housing 261, for example, simultaneously formed during injection molding. The cross-sectional shape of the baffle 261e can be rectangular or trapezoidal, and its edge end facing the base plate 210 is used to abut against the sidewall of the base plate 210 facing the receiving cavity 230. The baffle 261e extends in such a direction that its central region surrounds the outer periphery of the sound-emitting hole 261d, i.e., the central section surrounds the outlet of the sound-emitting hole 261d, forming the entrance of the first sound-emitting channel 270; both ends of the baffle 261e extend towards the sound-exit hole 240, guiding the outlet of the first sound-emitting channel 270 to the sound-exit hole 240. The first sound-emitting channel 270 can be formally defined as a virtual space enclosed by the outer wall of the housing 261, the inner side of the baffle 261e, and the upper surface of the base plate 210. It is a specific embodiment of the previously mentioned higher-level concept of "sound-emitting channel", specifically referring to a sound transmission channel with a clear lateral boundary enclosed by the baffle 261e.

[0035] The orientation of the baffle 261e can be implemented in various ways. In some embodiments, the baffle 261e is arranged in a U-shape semi-enclosed manner, that is, the baffle 261e starts from the edge of the sound hole 261d near the sound outlet 240 and extends outward along both sides of the sound hole 261d to form a U-shape with an opening facing the interior of the receiving cavity 230. This shape has a simple structure and is easy to demold. In other embodiments, the baffle 261e is arranged in a ring-shaped fully enclosed manner, that is, the baffle 261e completely surrounds the outer periphery of the sound hole 261d to form a closed ring, with openings only on one or both sides facing the sound outlet 240. The ring-shaped fully enclosed arrangement has a better sound insulation effect, but the mold structure is relatively complex. To improve the sealing performance at the contact point between the baffle 261e and the base plate 210, the end of the baffle 261e can be designed as a thin-walled pointed angle. When the housing 261 and the base plate 210 are assembled and tightened, the thin-walled pointed angle can produce a small amount of elastic or plastic deformation, adaptively conforming to the surface of the base plate 210 and reducing sound leakage gaps. Alternatively, an elastic sealing element, such as a silicone strip, can be added to the end of the baffle 261e to fill the assembly gap through elastic deformation, achieving a better acoustic sealing effect. The design intent of the baffle 261e is that it completely replaces the role of the independent sound guide tube in the traditional solution. It integrates the sound guide channel directly into the housing 261, utilizing the local structural modification of the housing 261 itself, and reusing the existing component base plate 210 of the main module 200 as the bottom wall of the channel, saving height space while reducing material and assembly costs.

[0036] Based on the above structure, the sound transmission process in the subordinate scheme is as follows: the diaphragm 262a of the sound-generating part 262 vibrates under the drive of the audio signal, generating sound waves in the inner cavity 261c. The sound waves are directionally output to the outside of the housing 261 through the sound-generating hole 261d, and enter the space surrounded by the middle of the baffle 261e, that is, the entrance of the first sound-generating channel 270. The baffle 261e confines the sound waves within the cross-section of the first sound-generating channel 270, preventing the sound waves from spreading disorderly to other areas of the receiving cavity 230. The sound waves propagate along the extension direction of the baffle 261e, reach the outlet of the first sound-generating channel 270, and are finally led out to the external space through the sound outlet 240.

[0037] In some embodiments, a dustproof baffle 250 is added within the receiving cavity 230. The dustproof baffle 250 is a component of any shape located within the receiving cavity 230, specifically a block-shaped component as described in this application. The dustproof baffle 250 is disposed between the sound outlet 240 and the first sound-emitting channel 270, forming a physical partition. The connection relationship of the dustproof baffle 250 is fully enclosed, with one side connected to the recessed area of ​​the concave portion 212 of the base plate 210, that is, using the partial recessed space of the concave portion 212 as a connection point; the opposite side is connected to the inner wall surface of the panel 221, with the panel 221 as support; both ends along the direction parallel to the first side edge 211 are connected to the inner wall surface of the peripheral wall plate 222, achieving closure on both sides. The dustproof baffle 250, the peripheral wall plate 222, and the panel 221 together enclose a relatively closed virtual space, defined as the outer sound cavity 253. The external acoustic cavity 253 is located between the sound outlet 240 and the dustproof baffle 250, serving the dual functions of a dust settling chamber and an acoustic front cavity. The dustproof baffle 250 has a sound guide hole 251 extending through its thickness, which connects the external acoustic cavity 253 to the first sound-emitting channel 270. The cross-sectional area of ​​the sound guide hole 251 is designed to be significantly smaller than the opening area of ​​the sound outlet 240, forming a bottleneck structure in the acoustic path. As a result, the acoustic path changes significantly; the sound no longer travels directly from the first sound-emitting channel 270 to the sound outlet 240, but instead first enters the sound guide hole 251 from the first sound-emitting channel 270, passes through the sound guide hole 251, and then enters the suddenly expanded external acoustic cavity 253. The sound must pass through the sound guide hole 251 and undergo a directional change within the external acoustic cavity 253. The connection method of the dustproof baffle 250 can be flexibly selected according to the manufacturing process. In some embodiments, the dustproof block 250 is integrally injection molded with the panel 221 and peripheral wall panel 222 of the face frame 220. During assembly, the dustproof block 250 directly engages with the recessed portion 212 of the base plate 210 by pressing or snapping. In other embodiments, the dustproof block 250 is an independent part, which is fixed to the recessed portion 212, the panel 221, and the peripheral wall panel 222 by means of snaps, hot melt pins, or adhesives.

[0038] Based on the aforementioned structure of the dustproof block 250, external sound cavity 253, and sound guide hole 251, the structure is dustproof and maintenance-free. External dust is doubly blocked by the external sound cavity 253 and the sound guide hole 251, preventing it from entering the area where the first sound-emitting channel 270 and the sound-emitting part 262 are located. The sound-emitting part 262 can remain clean for a long time without the need to replace the filter. In addition, this solution has a good combination relationship with the aforementioned baffle 261e solution. The baffle 261e and the first sound-emitting channel 270 provide directional guidance for sound from the sound-emitting part 262 to the sound guide hole 251, while the dustproof block 250 forms a dustproof barrier behind the sound guide hole 251 (on the side facing the sound outlet 240). Together, they constitute a complete sound path system with internal directional sound guidance and external structural dust protection.

[0039] In the design including the dustproof block 250, if the space between the housing 261 and the dustproof block 250 is not clearly enclosed, the baffle 261e only functions on the bottom plate 210 side, and an open gap remains between the housing 261 and the dustproof block 250. When sound is transmitted from the outlet of the first sound channel 270 to the sound guide hole 251, some of it may leak into other areas of the receiving cavity 230 through this open gap, affecting the sound transmission efficiency. To further optimize this design, the housing 261 is located on the side of the dustproof block 250 facing away from the outer sound cavity 253, that is, the housing 261 is located inside the dustproof block 250 (facing the interior of the receiving cavity 230). The housing 261 has clearly defined directional wall divisions. The first sidewall 261a faces the bottom plate 210, and the sound-emitting hole 261d penetrates through the first sidewall 261a. The second sidewall 261b faces the dustproof block 250, and the second sidewall 261b and the dustproof block 250 are spaced apart, i.e., there is a certain gap between them. In this structure, the baffle 261e is not only arranged around the sound-emitting hole 261d in the middle and extends towards the sound outlet 240 at both ends, but also extends from the first sidewall 261a to the second sidewall 261b, and the baffle 261e directly abuts against the surface of the dustproof block 250. This extension allows the baffle 261e to span the entire lateral width of the housing 261 from the bottom plate 210 side to the dustproof block 250 side. Thus, the second sidewall 261b, the dustproof block 250, and the baffle 261e together enclose a new virtual space, defined as the second sound-emitting channel 280. One side of the second sound-emitting channel 280 is connected to the first sound-emitting channel 270, and the other side is connected to the sound guide hole 251. The updated complete sound path is as follows: the sound waves generated by the sound-emitting part 262 establish sound pressure in the inner cavity 261c, are directionally output through the sound-emitting hole 261d, enter the first sound-emitting channel 270, propagate along the guide of the baffle 261e, enter the second sound-emitting channel 280 from the outlet of the first sound-emitting channel 270, are transmitted through the second sound-emitting channel 280 and then enter the sound guide hole 251, then enter the outer sound cavity 253, and finally exit from the sound outlet hole 240. The design intent of this scheme is that by extending the baffle 261e and abutting against the dustproof block 250, the original open gap between the housing 261 and the dustproof block 250 is enclosed into a sealed second sound-emitting channel 280, so that the entire sound path from the sound-emitting part 262 to the sound guide hole 251 is reliably covered by a closed channel, and the sound will not leak into the receiving cavity 230, further improving the sound energy transmission efficiency. The sealing at the contact point between the baffle 261e and the dustproof block 250 can be achieved by hard contact, relying on the dimensional accuracy of the injection molding to ensure fit; or an elastic seal can be added to the end of the baffle 261e to fill the assembly gap through elastic deformation.

[0040] In the design with the sound guide hole 251, since the sound guide hole 251 is an open hole, although the external sound cavity 253 can provide structural coarse filtration for large dust particles, extremely fine dust suspended in the air may still enter the second sound-emitting channel 280 and the first sound-emitting channel 270 through the sound guide hole 251. To provide finer filtration protection, the dustproof block 250 is also equipped with a dustproof mesh 252. The dustproof mesh 252 is a sound-permeable mesh filter component, which is set on the dustproof block 250 and covers the opening area of ​​the sound guide hole 251. The mesh surface is composed of a series of regularly arranged micropores. The pore size is larger than the free path of air molecules required for sound wave transmission and much smaller than the particle size of common dust particles, allowing airflow and sound waves to pass smoothly while intercepting solid particles larger than the mesh pore size. The dustproof mesh 252 can be connected to the dustproof block 250 by means of adhesive, ultrasonic welding, snap fastening, or insert injection molding. The connection position of the dustproof net 252 can be configured in several ways. In one embodiment, the dustproof net 252 is connected to the side wall of the dustproof block 250 facing the outer sound cavity 253. In this case, the dustproof net 252 is located inside the outer sound cavity 253, blocking the sound guide hole 251 from the outside. This intercepts dust on the side of the outer sound cavity 253, and the accumulated dust can be cleaned by opening the face frame 220, making maintenance convenient. In another embodiment, the dustproof net 252 is connected to the side wall of the dustproof block 250 facing the second sound channel 280. In this case, the dustproof net 252 is located on one side of the second sound channel 280, which is less affected by the external air environment and has higher reliability. In yet another embodiment, dustproof nets 252 are connected to both side walls of the dustproof block 250, that is, a layer of dustproof net is set at each end of the sound guide hole 251, forming a double-mesh fine filtration, which provides the highest level of protection and is suitable for high dust concentration environments. The above solutions can be implemented individually or in combination. This creates a tiered dustproof system consisting of "structural coarse filtration plus fine mesh filtration." External dust first settles in the outer sound cavity 253 due to airflow deceleration (coarse filtration of large particles). The remaining fine particles are intercepted by the mesh of the dustproof net 252 when passing through the sound guide hole 251 (fine filtration of small particles). The overall dustproof efficiency of the two-stage interception is significantly improved compared to a single stage. At the same time, since the dustproof net 252 is built into the sound path, the upstream structural coarse filtration has already removed large particles that are prone to clogging. The amount of dust reaching the dustproof net 252 is small and the particle size is small. Therefore, the mesh of the dustproof net 252 does not need to be designed to be too small. Relatively large meshes can be used to reduce sound attenuation, achieving a comprehensive effect of good sound transmission, sufficient dustproof effect, and easy mesh clogging.

[0041] In the common usage state where the main unit module 200 is placed on a supporting surface such as a desktop, if the bottom surface of the base plate 210 is roughly parallel to the supporting surface, then the first side 211 is also roughly parallel to the supporting surface. In this case, the opening direction of the sound outlet 240 is mainly horizontal or slightly downward. Since the opening direction is mainly horizontal, dust in the air can enter the interior of the sound outlet 240 from the side horizontal direction, and the blocking effect of gravity on dust is not fully utilized. To further enhance the dustproof effect by utilizing gravity, the main unit module 200 has a working state supported on a supporting surface, such as a desktop, as a horizontal reference surface for subsequent distance measurements. In this working state, along the direction gradually approaching the peripheral wall plate 222, that is, from the inside to the outside of the first side 211, the distance between the first side 211 and the supporting surface gradually increases. This means that in the local area where the sound outlet 240 is located, the first side 211 presents an inclined posture with the outside higher and the inside lower, with the side closer to the flat peripheral wall plate 222 having a larger distance relative to the supporting surface, and the side farther from the peripheral wall plate 222 having a smaller distance relative to the supporting surface. This tilted orientation causes the opening of the sound outlet 240 to face downwards and outwards, allowing sound to be directed downwards and outwards. Dust, falling naturally due to gravity, is less likely to enter the downward-facing and outward-facing opening. Several methods can achieve this tilt. The tilt of the first side 211 can be achieved by designing the entire bottom surface of the base plate 210 as a wedge shape, or by setting support feet of varying heights at different locations on the base plate 210. Alternatively, the base plate 210 can be kept horizontal, with a structure protruding towards the support surface only in a localized area of ​​the recessed portion 212 of the first side 211, so that the distance between this localized area and the support surface gradually increases towards the peripheral wall plate 222. The technical effects of this tilted orientation include: first, enhanced dust prevention, as the opening of the sound outlet 240 faces downwards and outwards, making it less likely for dust to fall into the downward-facing opening due to gravity, thus strengthening the dust prevention advantage; second, optimized sound propagation direction, as the sound outlet 240 directs sound downwards and outwards, the near-field sound field distribution can be optimized by utilizing the reflection effect of the desktop, improving the user's listening experience.

[0042] In the working state, the vertical distance from the outer edge of the sound outlet 240 near the peripheral wall plate 222 to the supporting surface is defined as the first distance, and the vertical distance from the inner edge of the sound outlet 240 away from the peripheral wall plate 222 to the supporting surface is defined as the second distance. Both distances are measured in a direction perpendicular to the supporting surface. The first distance is defined as greater than the second distance, that is, the outer edge of the sound outlet 240 is higher than the inner edge. This end-value relationship intuitively reflects the spatial tilt characteristic of the opening surface of the sound outlet 240, which is higher on the outside and lower on the inside. This perfectly matches the trend logic of the gradually increasing distance of the first side 211, and the degree of tilt can be implemented in two specific measurable distance values. This end-value relationship makes the sound more concentrated and directed outward and downward from the sound outlet 240, further increasing the difficulty for dust to enter the opening from below, thus consolidating the sound output and dust prevention effects.

[0043] See Figures 4-6The sound-emitting part 262 emits sound towards the sound-emitting channel 270, and the diaphragm 262a can be set parallel to the base plate 210. To further optimize the spatial matching relationship between the main energy direction of the sound source and the sound outlet 240, and to reduce energy loss caused by multiple reflections of sound waves inside the sound-emitting channel 270, the diaphragm 262a of the sound-emitting part 262 is limited to tilting towards the concave portion 212. That is, the vibrating sound-emitting surface of the diaphragm 262a is no longer parallel to the plane of the base plate 210, but is tilted at a certain angle so that its normal direction points to the side area where the concave portion 212 is located. The technical significance of this tilt is that the main energy direction of the sound waves generated by the diaphragm 262a is more directly aligned with the side area where the sound outlet 240 is located. Most of the sound waves do not need to be reflected multiple times by the wall of the sound-emitting channel 270 to reach the sound outlet 240 directly, effectively reducing the sound energy attenuation caused by reflection. In particular, the high-frequency components are more completely preserved, and the sound details are richer. The tilt angle of the diaphragm 262a can be selected from 15° to 45°, for example, it can be 15°, 20°, 25°, 30°, 35°, 40° or 45°. The tilt can be achieved by tilting the entire sound-generating part 262 in the inner cavity 261c, or by independently tilting the diaphragm 262a inside the sound-generating part 262. The concave shape of the recess 212 provides physical clearance for the vibration space of the tilted diaphragm 262a and the main lobe of the sound wave. If the first side 211 of the base plate 210 is flat and without a concave shape, when the diaphragm 262a tilts in the side direction, its edge area or the main lobe of the sound wave may be blocked by the solid material of the base plate 210, affecting the effective output of sound. The presence of the recess 212 ensures that the front of the tilting direction of the diaphragm 262a is exactly the open sound outlet 240 area, and the main energy of the sound wave can be directly radiated outward through this open area. The diaphragm 262a is tilted toward the concave portion 212, so that the direction of the main energy propagation of the sound wave is more consistent with the opening direction of the sound outlet 240, which reduces the reflection attenuation of the sound wave in the channel and improves the sound transmission efficiency.

[0044] In traditional laptop internal layouts, speaker components are typically placed below the keyboard area, specifically in the space directly below the keyboard area 221a of the panel 221. However, the height of this space is severely limited by the overall thickness of the main unit module 200, and this area is also occupied by large core components such as the motherboard, cooling module, and battery. The speaker components are squeezed into a narrow remaining gap, severely restricting the size of the speaker unit and the diaphragm area, making it difficult to guarantee low-frequency performance and overall sound quality. Furthermore, the speaker components overlap with the motherboard and other core components in planar projection, leading to layout conflicts that often require space compromises for placement.

[0045] The speaker assembly 260 is limited to being located within the receiving cavity 230, but its specific mounting position within the cavity 230 is not further specified. If the speaker assembly 260 is placed directly below the keyboard area 221a using the traditional layout, it will still face the problem of competing with other core components for limited planar space, failing to fully utilize the layout freedom provided to the speaker unit in the lateral space of this solution. To solve this problem, further improve the utilization efficiency of the internal space of the host module 200, and avoid layout conflicts between the speaker assembly 260 and core components such as the motherboard and battery, this solution further limits the specific placement position of the speaker assembly 260 within the receiving cavity 230.

[0046] See Figures 1-6The panel 221 includes a keyboard area 221a and a touchpad area 221b. The keyboard area 221a is located in the rear center of the panel 221, i.e., the side furthest from the user during normal use, and is used to house the keyboard module. The touchpad area 221b is located to one side of the keyboard area 221a, specifically closer to the user's front, and is used to house the touchpad module. Viewed along the thickness of the panel 221, i.e., from a top-down view, the speaker assembly 260 and the touchpad area 221b are both located on the same side of the keyboard area 221a, i.e., both are located in front of the keyboard area 221a. Furthermore, the specific location of the speaker assembly 260 is further defined as a corner position 213 on the base plate 210. The corner position 213 is defined as the corner area formed by the intersection of two adjacent sides of the base plate 210. In traditional laptop internal layouts, the corner position 213 is typically considered unused space due to its irregular shape and distance from the core functional areas. The speaker assembly 260 is positioned at the corner location 213 to avoid overlapping with the planar projection of core components such as the motherboard and battery, thus achieving independent spatial deployment of the speaker assembly 260. The specific configuration of the corner location 213 can be flexibly selected. In a single-speaker solution, one speaker assembly 260 can be located at the left or right front corner of the base plate 210. In a dual-speaker stereo solution, two speaker assemblies 260 can be respectively positioned at the left and right front corners of the base plate 210, using the two symmetrical corner locations 213 to form a left and right channel stereo system. In the thickness direction, the speaker assembly 260 and the touchpad area 221b can be arranged in a stacked manner, i.e., the speaker assembly 260 is located directly below the touchpad area 221b, and the two overlap in the thickness direction; or they can be staggered, i.e., the speaker assembly 260 is located to the side and below the touchpad area 221b, offset along the length of the panel 221, and the two are staggered in planar arrangement. The corner layout has many advantages. The corner position 213 is far away from the high-temperature area where the motherboard and heat dissipation module are located, so the speaker assembly 260 is not easily affected by heat and has higher reliability. The corner position 213 itself is close to the side of the base plate 210, and the sound channel 270 can extend along the direction of the adjacent side to the sound hole 240 on the nearest first side 211. The sound guiding path is short and direct, and the sound energy transmission loss is small.

[0047] The corner layout brings several key technological benefits. First, it significantly improves space utilization. The corner position 213, previously an unused dead space, becomes an effective mounting location for the speaker assembly 260, without occupying additional core planar space in the middle of the housing 230. The available space for core components such as the motherboard and battery remains unaffected, resulting in improved overall space utilization efficiency. Second, it decouples speaker unit size from chassis thickness. With the speaker assembly 260 positioned at the corner 213, it is no longer confined to the narrow height space directly below the keyboard area 221a. The diaphragm 262a area is no longer limited by the height space below the keyboard, allowing for a larger speaker unit and providing a physical basis for improved low frequencies and overall sound quality. Third, it provides a shorter and more direct sound path. With the speaker assembly 260 located at the corner 213, the housing 261 can accommodate baffles 261e and the first sound channel 270 along the adjacent side. The path from the sound channel 270 to the sound outlet 240 at the first side 211 is shorter, resulting in less sound transmission loss within the channel. The corner layout scheme works well with the aforementioned features. Combined with the baffle 261e and the first sound-emitting channel 270, the sound emitted by the sound-emitting part 262 is precisely guided by the baffle 261e, passing through the corner position 213 and directly reaching the sound outlet 240 along the side, resulting in the shortest sound path and the most compact structure. Combined with the tilted working posture scheme, the sound waves generated by the speaker assembly 260 located at the corner position 213 are conducted through the sound-emitting channel 270 and then discharged outwards and downwards through the sound outlet 240, which has an outer-high, inner-low tilt, simultaneously optimizing the sound propagation direction and dustproof effect.

[0048] The following is a specific and relatively complete embodiment of a laptop computer product integrating several of the aforementioned features. Specifically, the laptop computer includes a host module 200 and a display module. The display module is connected to the rear side of the host module 200 via a hinge and can be flipped open and closed relative to the host module 200. The base plate 210 of the host module 200 has a first side 211, which is located on the front side of the host module 200, and the first side 211 is concave to form an arc-shaped concave portion 212. The front frame 220 includes a panel 221 and a peripheral wall panel 222. The panel 221 is arranged opposite to the base plate 210, and the peripheral wall panel 222 connects the outer periphery of the base plate 210 and the panel 221. The panel 221 has a keyboard area 221a and a touchpad area 221b, with the touchpad area 221b located in front of the keyboard area 221a. The receiving cavity 230 is formed by the base plate 210 and the front frame 220. The sound outlet 240 is formed by the combination of an arc-shaped concave portion 212 and a peripheral wall plate 222, and has a crescent-shaped opening located on the front side of the base plate 210, with the opening facing downwards and outwards. A dustproof block 250 is provided within the receiving cavity 230. One side of the dustproof block 250 is connected to the concave portion 212, and the other side is connected to the panel 221. Both ends parallel to the first side 211 are connected to the peripheral wall plate 222. The dustproof block 250, the peripheral wall plate 222, and the panel 221 together define the external sound cavity 253. The dustproof block 250 has a sound guide hole 251, which is covered by a dustproof mesh 252 connected to the side wall of the dustproof block 250 facing the external sound cavity 253. The speaker assembly 260 is located at the left front corner 213 of the base plate 210, and is located in front of the keyboard area 221a, just like the touchpad area 221b. The housing 261 of the speaker assembly 260 is fitted to the base plate 210. The housing 261 defines an inner cavity 261c and a sound-emitting hole 261d. The sound-emitting part 262 is disposed in the inner cavity 261c. The diaphragm 262a of the sound-emitting part 262 faces the sound-emitting hole 261d and is inclined towards the recessed portion 212. The housing 261 also includes a baffle 261e. The middle part of the baffle 261e is arranged around the sound-emitting hole 261d, and both ends of the baffle 261e extend towards the sound outlet 240. The baffle 261e abuts against the base plate 210 to form a first sound-emitting channel 270. The baffle 261e also extends from the first side wall 261a to the second side wall 261b and abuts against the dustproof block 250. The second side wall 261b, the dustproof block 250, and the baffle 261e together form a second sound-emitting channel 280. When the laptop is in normal working condition and placed on the desktop, the distance between the first side 211 of the host module 200 and the desktop gradually increases along the direction of gradually approaching the peripheral wall panel 222, and the first distance between the outer edge of the sound hole 240 and the desktop is greater than the second distance between its inner edge and the desktop.

[0049] This application also provides a laptop computer, which includes the host module 200 and a display module as described in any of the foregoing embodiments. The display module includes conventional components such as a display screen and a display casing. The display panel type of the display screen can be a liquid crystal display panel or an organic light-emitting diode display panel, etc. The connection method between the display module and the host module 200 can be a hinge connection, i.e., a traditional flip-top laptop structure, in which the display module can be flipped open and closed relative to the host module 200 within a certain angle range; or it can be a magnetic sliding rail connection, i.e., a two-in-one detachable laptop structure, in which the display module can be completely separated from the host module 200.

[0050] It should be noted that if directional indications (such as up, down, left, right, front, back, etc.) are involved in the embodiments of the present invention, these directional indications are only used to explain the relative positional relationships and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly. When a direction reference is introduced in a specific embodiment, unless the direction is specifically limited to unidirectional, the direction can be unidirectional or bidirectional (two parallel and opposite directions). Whether it is unidirectional or bidirectional depends on what those skilled in the art can achieve. When the direction reference is bidirectional, it should be considered that two parallel and different embodiments have been introduced simultaneously.

[0051] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or," "and / or," or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0052] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A host module for a laptop computer, the laptop computer further comprising a display module connected to the host module, characterized in that, The host module includes, A base plate having a first side edge, wherein the first side edge is recessed to form a concave portion; The face frame includes a front panel and a peripheral wall panel. The front panel and the bottom plate are arranged opposite to each other. The peripheral wall panel is located between the bottom plate and the front panel, and the peripheral wall panel is connected to the outer peripheral side of the bottom plate and the outer peripheral side of the front panel respectively. The bottom plate and the face frame together define a receiving cavity. The recessed portion and the peripheral wall panel together define a sound outlet hole communicating with the receiving cavity. A speaker assembly is disposed in the receiving cavity. The speaker assembly includes a housing and a sound-emitting part connected to the housing. The housing is attached to the bottom plate and together with the bottom plate defines a sound-emitting channel. The sound-emitting part emits sound toward the sound-emitting channel. The sound-emitting channel is connected to the sound outlet hole so that the sound emitted by the sound-emitting part is exported through the sound outlet hole.

2. The host module as described in claim 1, characterized in that, The housing defines an inner cavity and a sound-emitting hole communicating with the inner cavity. The sound-emitting part is disposed in the inner cavity, and the diaphragm of the sound-emitting part faces the sound-emitting hole. The housing also includes a baffle rib, which abuts against the side wall of the base plate facing the receiving cavity, thereby the housing and the base plate together define the first sound-emitting channel. The middle part of the baffle rib is arranged around the sound-emitting hole, and both ends of the baffle rib extend toward the sound outlet hole, so that the sound-emitting channel communicates with the sound outlet hole.

3. The host module as described in claim 2, characterized in that, The host module also includes a dustproof block located in the receiving cavity. One side of the dustproof block is connected to the recess and the other side is connected to the panel. Both ends of the dustproof block along the direction parallel to the side are connected to the peripheral wall plate. The dustproof block, the peripheral wall plate, and the panel together define an outer sound cavity that communicates with the sound hole. The dustproof block is provided with a sound guide hole. The first sound channel communicates with the sound outlet hole through the sound guide hole and the outer sound cavity.

4. The host module as described in claim 3, characterized in that, The housing is located on the side of the dustproof block away from the external sound cavity. The housing has a first sidewall facing the base plate and a second sidewall facing the dustproof block. The sound-emitting hole passes through the first sidewall. The second sidewall is spaced apart from the dustproof block. The baffle extends from the first sidewall to the second sidewall and abuts against the dustproof block, so that the second sidewall, the dustproof block, and the baffle together define a second sound-emitting channel. One side of the second sound-emitting channel is connected to the sound guide hole, and the other side is connected to the first sound-emitting channel.

5. The host module as described in claim 4, characterized in that, The dustproof block is also provided with a dustproof net, which covers the sound guide hole; The dustproof net is connected to the side wall of the dustproof block facing the external sound cavity, and / or the dustproof net is connected to the side wall of the dustproof block facing the second sound channel.

6. The host module as described in claim 4, characterized in that, The host module has a working state supported on the support surface; In the aforementioned working state, the distance between the first side and the supporting surface gradually increases along the direction that gradually approaches the peripheral wall plate.

7. The host module as described in claim 6, characterized in that, In the aforementioned working state, the distance between the edge of the sound outlet near the peripheral wall plate and the supporting surface is a first distance, and the distance between the edge of the sound outlet away from the peripheral wall plate and the supporting surface is a second distance, wherein the first distance is greater than the second distance.

8. The host module as described in claim 1, characterized in that, The diaphragm of the sound-producing part is tilted toward the concave portion.

9. The host module as described in claim 1, characterized in that, The panel has a keyboard area and a touchpad area, with the touchpad area located on one side of the keyboard area; Viewed along the thickness direction of the panel, the speaker assembly and the touchpad area are both located on the same side of the keyboard area and at the corner of the base plate.

10. A laptop computer, characterized in that, include, The host module according to any one of claims 1-9; and The display module is connected to the host module.

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