A loudspeaker system and a base

Abstract

The application discloses a loudspeaker system and a base. The loudspeaker system comprises a low-frequency loudspeaker component and a medium-high-frequency loudspeaker component. The low-frequency loudspeaker component comprises a low-frequency loudspeaker and a bass box. The low-frequency loudspeaker is installed on the bass box. The medium-high-frequency loudspeaker component comprises a first medium-high-frequency loudspeaker component and a second medium-high-frequency loudspeaker component. The first medium-high-frequency loudspeaker component and the second medium-high-frequency loudspeaker component are arranged on the left side and the right side of the bass box respectively. The first medium-high-frequency loudspeaker component is used for outputting a medium-high-frequency component in a left-channel audio signal. The second medium-high-frequency loudspeaker component is used for outputting a medium-high-frequency component in a right-channel audio signal. The low-frequency loudspeaker component is used for outputting a low-frequency component. According to the application, a loudspeaker system and a base can be provided. The loudspeaker system has low requirement on the overall sealing property of the base, and can form 2.1-channel audio output.

Description

Technical Field

[0001] This invention relates to the field of audio technology, and more particularly to a speaker system and base. Background Technology

[0002] "Girlfriend device" is a type of portable smart screen device designed for home and light office settings, often referred to as a "mobile smart screen" or "flexible screen." It can be understood as mounting a tablet or smart TV on a portable stand, combining large-screen display, smart interaction, and flexible mobility.

[0003] The speakers in existing "best friend" phones are usually located within the display component or the support base. Some "best friend" phones have speakers located separately in the display component and the support base. These speakers are generally used as part of the overall audio system of the "best friend" phone. For example, Chinese invention patent CN223993725U discloses a speaker structure for a "best friend" phone. The base shell of the "best friend" phone consists of an upper shell and a lower shell, which are connected by a sealing fastener. Several woofers and several passive radiators are installed on the top of the lower shell, and several caster slots for mounting casters are installed on the bottom of the lower shell. The woofers and passive radiators emit sound downwards. This speaker structure integrates the subwoofer component into the base, transforming the entire base into the subwoofer's sound cavity. This requires a high degree of sealing in the base shell, and the speaker structure can only be used with the "best friend" phone and cannot be used independently as a Bluetooth speaker.

[0004] Therefore, designing a speaker system suitable for the base, with low requirements for the overall sealing of the base, and capable of generating 2.1 channel audio output is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] The purpose of this invention is to provide a speaker system and a base, wherein the speaker system has low requirements for the overall sealing of the base and can form a 2.1 channel audio output.

[0006] In a first aspect, the present invention provides a speaker system for a base, the speaker system comprising a low-frequency speaker assembly and a mid-to-high-frequency speaker assembly; the low-frequency speaker assembly includes a low-frequency speaker and a subwoofer enclosure, the low-frequency speaker is mounted in the subwoofer enclosure, the back side of the diaphragm of the low-frequency speaker communicates with the inner cavity of the subwoofer enclosure, and the front side of the diaphragm of the low-frequency speaker communicates with the external space of the subwoofer enclosure; the mid-to-high-frequency speaker assembly includes a first mid-to-high-frequency speaker assembly and a second mid-to-high-frequency speaker assembly, the first mid-to-high-frequency speaker assembly and the second mid-to-high-frequency speaker assembly are respectively disposed on the left and right sides of the subwoofer enclosure; the first mid-to-high-frequency speaker assembly is used to output the mid-to-high-frequency components of the left channel audio signal, the second mid-to-high-frequency speaker assembly is used to output the mid-to-high-frequency components of the right channel audio signal, and the low-frequency speaker assembly is used to output the low-frequency components. In this configuration, the mid-high frequency and low-frequency speaker assemblies on the left and right sides respectively handle the reproduction of mid-high and low frequencies in the left and right channels, thus forming a 2.1-channel audio output. The mid-high frequency components of the left and right channels are output by the mid-high frequency speaker assemblies located on the left and right sides of the subwoofer enclosure, which helps to form clear stereo sound. The low-frequency components are output by the low-frequency speaker assemblies, eliminating the need for the mid-high frequency speaker assemblies on the left and right sides to handle low-frequency reproduction, which helps to achieve better low-frequency reproduction. The base does not need to form a sealed acoustic cavity, and the overall sealing requirements of the speaker system on the base are low. This simplifies the structural design and assembly process of the base, reduces the requirements for the sealing treatment and processing precision of the base, and helps to reduce the overall manufacturing cost of the base and speaker system.

[0007] Additionally, in the loudspeaker system of the present invention, optionally, the left and right sides of the subwoofer enclosure have a first clearance portion and a second clearance portion, the first mid-high frequency loudspeaker assembly is located in the first clearance portion, and the second mid-high frequency loudspeaker assembly is located in the second clearance portion; the first mid-high frequency loudspeaker assembly includes a first mid-high frequency loudspeaker and a first mid-high frequency enclosure, and the second mid-high frequency loudspeaker assembly includes a second mid-high frequency loudspeaker and a second mid-high frequency enclosure, and the first mid-high frequency enclosure and the second mid-high frequency enclosure are respectively arranged independently of the subwoofer enclosure.

[0008] Additionally, in the loudspeaker system of the present invention, optionally, the subwoofer enclosure further includes a bass reflex port, the inlet end of which communicates with the inner cavity of the subwoofer enclosure, and the outlet end of which communicates with the outer space of the subwoofer enclosure.

[0009] Additionally, in the loudspeaker system of the present invention, optionally, the bass reflex port includes a first bass reflex port and a second bass reflex port, the first bass reflex port and the second bass reflex port being symmetrical about the longitudinal center plane of the subwoofer enclosure.

[0010] Additionally, in the loudspeaker system of the present invention, optionally, the sound output direction of the low-frequency loudspeaker is directed towards the lower part of the subwoofer enclosure, and the outlet end of the bass reflex tube is directed towards the rear side of the subwoofer enclosure.

[0011] Additionally, in the loudspeaker system of the present invention, optionally, the first mid-high frequency loudspeaker assembly and the second mid-high frequency loudspeaker assembly are symmetrical about the longitudinal center plane of the subwoofer enclosure, the sound output direction of the first mid-high frequency loudspeaker is towards the left front of the subwoofer enclosure, and the sound output direction of the second mid-high frequency loudspeaker is towards the right front of the subwoofer enclosure.

[0012] In a second aspect, the present invention provides a base comprising a speaker system as described in any of the first aspects above and a housing, wherein the speaker system is disposed within the housing.

[0013] Additionally, in the base involved in this invention, optionally, the bass enclosure includes a bass reflex port, the first mid-high frequency speaker assembly includes a first mid-high frequency speaker, and the second mid-high frequency speaker assembly includes a second mid-high frequency speaker; the bottom of the housing has a first sound outlet communicating with the sound outlet side of the bass speaker, the rear side wall of the housing has a second sound outlet communicating with the outlet end of the bass reflex port, and the side wall of the housing has a third sound outlet communicating with the sound outlet side of the first mid-high frequency speaker and a fourth sound outlet communicating with the sound outlet side of the second mid-high frequency speaker.

[0014] Additionally, in the base involved in this invention, the base may optionally include a movable component, which is connected to and supports the housing, so that a gap is formed between the bottom of the housing and the bearing surface, and the gap communicates with the first sound outlet and the external space of the housing to form a sound outlet channel.

[0015] Additionally, in the base involved in this invention, optionally, the base further includes a Bluetooth module, an audio processing module, and a power amplification module. The output terminal of the Bluetooth module is connected to the input terminal of the audio processing module, and the output terminal of the audio processing module is connected to the input terminal of the power amplification module. The Bluetooth module is used to receive audio data sent by an external terminal and output an audio signal corresponding to the audio data to the audio processing module. The audio processing module is used to process the audio signal to obtain the low-frequency component, the mid-high frequency component in the left channel audio signal, and the mid-high frequency component in the right channel audio signal. The power amplification module is used to amplify the power of the low-frequency component, the mid-high frequency component in the left channel audio signal, and the mid-high frequency component in the right channel audio signal to drive the low-frequency speaker, the first mid-high frequency speaker, and the second mid-high frequency speaker to produce sound.

[0016] Additionally, in the base involved in this invention, optionally, the power amplification module includes a left channel output channel, a right channel output channel, and a low-frequency output channel that are independent of each other, respectively used to amplify the mid-high frequency components in the left channel audio signal, the mid-high frequency components in the right channel audio signal, and the low-frequency components, so as to drive the first mid-high frequency speaker, the second mid-high frequency speaker, and the low-frequency speaker to produce sound.

[0017] According to the present invention, a speaker system and a base can be provided, wherein the speaker system has low requirements for the overall sealing of the base and can form a 2.1 channel audio output. Attached Figure Description

[0018] The invention will now be explained in further detail by way of examples with reference to the accompanying drawings.

[0019] Figure 1 A top view of a loudspeaker system according to an example of the present invention is shown.

[0020] Figure 2 A schematic diagram of the loudspeaker system involved in the example of the present invention is shown.

[0021] Figure 3 A schematic diagram of the loudspeaker system according to an example of the present invention is shown from another perspective.

[0022] Figure 4 A schematic diagram of the transmission path of the audio signal involved in the example of the present invention is shown.

[0023] Explanation of reference numerals in the attached drawings: 1. Low-frequency speaker assembly; 2. Mid-high frequency speaker assembly; 2a. First mid-high frequency speaker assembly; 2b. Second mid-high frequency speaker assembly; 3. Bluetooth module; 4. Audio processing module; 5. Power amplifier module; 11. Low-frequency speaker; 12. Subwoofer enclosure; 121. Bass reflex port; 121a. First bass reflex port; 121b. Second bass reflex port; 122. Recess; 122a. First recess; 122b. Second recess; 122c. Third recess; 122d. Fourth recess; 21a. First mid-high frequency speaker; 21b. Second mid-high frequency speaker; 22a. First mid-high frequency enclosure; 22b. Second mid-high frequency enclosure. Detailed Implementation

[0024] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, the same reference numerals are used for the same parts, and repeated descriptions are omitted. Furthermore, the drawings are merely schematic diagrams, and the proportions of the parts or the shapes of the parts may differ from the actual figures.

[0025] It should be noted that the terms "comprising" and "having," and any variations thereof, in this invention, do not necessarily limit the process, method, system, product, or device to the explicitly listed steps or units, but may include or have other steps or units not explicitly listed or inherent to these processes, methods, products, or devices. The serial numbers assigned to components in this invention, such as "first," "second," etc., are merely for distinguishing the described objects and do not have any sequential or technical meaning. Unless otherwise specified, the term "connection" in this invention includes both direct and indirect connections. In the description of this invention, it should be understood that the terms "inner," "outer," "upper," "lower," "front," "rear," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0026] The first aspect of the present invention provides a speaker system that can be used in a base.

[0027] Figure 1 A top view of a loudspeaker system according to an example of the present invention is shown. Figure 2 A schematic diagram of the loudspeaker system involved in the example of the present invention is shown. Figure 3 A schematic diagram of the loudspeaker system according to an example of the present invention is shown from another perspective.

[0028] In this application, unless otherwise stated, directions such as up, down, left, right, front, and back are all indicated by... Figure 1 Based on the indicated direction, specifically, in Figure 1 In the diagram, the top is the front, the bottom is the rear, the left is the left side, the right is the right side, and the vertical direction inwards is downwards, while the vertical direction outwards is upwards. Under normal use, the front of the speaker system faces the user.

[0029] Reference Figures 1 to 3 In some examples, the loudspeaker system may include a low-frequency loudspeaker assembly 1 and a mid-to-high frequency loudspeaker assembly 2.

[0030] In some examples, the low-frequency speaker assembly 1 may include a low-frequency speaker 11 and a subwoofer enclosure 12. In some examples, the low-frequency speaker 11 may be mounted in the subwoofer enclosure 12. In some examples, the back side of the diaphragm of the low-frequency speaker 11 may communicate with the inner cavity of the subwoofer enclosure 12, and the front side of the diaphragm of the low-frequency speaker 11 may communicate with the outer space of the subwoofer enclosure 12. The diaphragm of the low-frequency speaker 11 has a front side and a back side, with the front side of the diaphragm facing the outside of the subwoofer enclosure 12 and the back side of the diaphragm facing the inside of the subwoofer enclosure 12.

[0031] In some examples, the sound emission direction of the low-frequency speaker 11 can be directed downwards towards the subwoofer enclosure 12. In this case, the sound waves from the front side of the diaphragm of the low-frequency speaker 11 radiate downwards towards the subwoofer enclosure 12, and after being reflected by the supporting surface, diffuse in all directions, thereby expanding the coverage of low-frequency sound waves and preventing low-frequency sound waves from directly facing the user. The supporting surface refers to the external surface used to place and support the base, including but not limited to the supporting surface of a desktop, tabletop, cabinet, floor, or stand.

[0032] In some examples, the mid-to-high frequency speaker assembly 2 may include a first mid-to-high frequency speaker assembly 2a and a second mid-to-high frequency speaker assembly 2b.

[0033] In some examples, the first mid-high frequency loudspeaker assembly 2a may include a first mid-high frequency loudspeaker 21a and a first mid-high frequency enclosure 22a. In some examples, the first mid-high frequency loudspeaker 21a may be mounted in the first mid-high frequency enclosure 22a. In some examples, the back side of the diaphragm of the first mid-high frequency loudspeaker 21a may communicate with the inner cavity of the first mid-high frequency enclosure 22a, and the front side of the diaphragm of the first mid-high frequency loudspeaker 21a may communicate with the outer space of the first mid-high frequency enclosure 22a. The diaphragm of the first mid-high frequency loudspeaker 21a has a front side and a back side, with the front side of the diaphragm facing the outside of the first mid-high frequency enclosure 22a and the back side of the diaphragm facing the inside of the first mid-high frequency enclosure 22a.

[0034] In some examples, the second mid-high frequency loudspeaker assembly 2b may include a second mid-high frequency loudspeaker 21b and a second mid-high frequency enclosure 22b. In some examples, the second mid-high frequency loudspeaker 21b may be mounted in the second mid-high frequency enclosure 22b. In some examples, the back side of the diaphragm of the second mid-high frequency loudspeaker 21b may communicate with the inner cavity of the second mid-high frequency enclosure 22b, and the front side of the diaphragm of the second mid-high frequency loudspeaker 21b may communicate with the outer space of the second mid-high frequency enclosure 22b. The diaphragm of the second mid-high frequency loudspeaker 21b has a front side and a back side, with the front side of the diaphragm facing the outside of the second mid-high frequency enclosure 22b and the back side of the diaphragm facing the inside of the second mid-high frequency enclosure 22b.

[0035] In some examples, the first mid-high frequency enclosure 22a and the second mid-high frequency enclosure 22b can be set independently of the subwoofer enclosure 12. In this case, the base does not need to form a sealed acoustic cavity, the overall sealing requirements of the speaker system on the base are low, which simplifies the structural design and assembly process of the base, reduces the requirements for the sealing treatment and processing precision of the base, and helps to reduce the overall manufacturing cost of the base and speaker system.

[0036] In some examples, the first mid-high frequency speaker assembly 2a and the second mid-high frequency speaker assembly 2b can be respectively disposed on the left and right sides of the subwoofer enclosure 12. In some examples, the left and right sides of the subwoofer enclosure 12 can have a first clearance portion and a second clearance portion, respectively. In some examples, the first mid-high frequency speaker assembly 2a can be located in the first clearance portion, and the second mid-high frequency speaker assembly 2b can be located in the second clearance portion. In this case, the low-frequency speaker assembly 1 and the mid-high frequency speaker assembly 2 are arranged compactly, which can reduce the space occupied by the speaker system in the base.

[0037] In some examples, the first mid-high frequency speaker assembly 2a can be used to output the mid-high frequency components of the left channel audio signal, the second mid-high frequency speaker assembly 2b can be used to output the mid-high frequency components of the right channel audio signal, and the low-frequency speaker assembly 1 can be used to output the low-frequency components. In this case, the mid-high frequency speaker assemblies 2 on the left and right sides and the low-frequency speaker assembly 1 on the low-frequency side respectively handle the reproduction of the mid-high frequency and low frequency of the left and right channels, thereby forming a 2.1 channel audio output; the mid-high frequency components of the left and right channels are output by the mid-high frequency speaker assemblies 2 located on the left and right sides of the subwoofer enclosure 12, which is conducive to forming clear stereo sound, and the low-frequency components are output by the low-frequency speaker assembly 1, without the need for the mid-high frequency speaker assemblies 2 on the left and right sides to handle the low-frequency reproduction, which is conducive to obtaining a better low-frequency reproduction effect.

[0038] In some examples, the subwoofer enclosure 12 may include a bass reflex port 121. In some examples, the inlet end of the bass reflex port 121 may communicate with the inner cavity of the subwoofer enclosure 12, and the outlet end of the bass reflex port 121 may communicate with the outer space of the subwoofer enclosure 12. In some examples, the outlet end of the bass reflex port 121 may form a bass reflex port on the side wall of the subwoofer enclosure 12, and the bass reflex port may connect the inner space of the bass reflex port 121 with the outer space of the subwoofer enclosure 12. In this case, the sound waves on the back side of the diaphragm of the low-frequency speaker 11 are led out through the bass reflex port 121 and superimposed in phase with the sound waves on the front side of the diaphragm, which can improve the radiation efficiency of low-frequency sound waves, improve low-frequency response, and help to expand the low-frequency reproduction range.

[0039] In some examples, the outlet of the bass reflex port 121 can face the rear of the subwoofer enclosure 12. In this case, the low-frequency sound waves are directed in multiple directions through the cooperation of the low-frequency speaker 11, the subwoofer enclosure 12, and the bass reflex port 121, which is beneficial for the diffusion of low-frequency sound waves.

[0040] In some examples, the bass reflex port 121 may include a first bass reflex port 121a and a second bass reflex port 121b. In some examples, the first bass reflex port 121a and the second bass reflex port 121b may be respectively disposed on both sides of the longitudinal center plane of the subwoofer enclosure 12. The longitudinal center plane, as referred to in this application, is an imaginary plane extending longitudinally along the subwoofer enclosure 12 and passing through the transverse center of the subwoofer enclosure 12. The longitudinal direction is the front-to-back direction of the subwoofer enclosure 12, and the transverse direction is the left-to-right direction of the subwoofer enclosure 12. The longitudinal center plane divides the subwoofer enclosure 12 into a left-side region and a right-side region. In this case, by rationally utilizing the space on both sides of the longitudinal center plane of the subwoofer enclosure 12 to arrange the bass reflex port 121, a coordinated sound output path can be formed between the low-frequency speaker 11 and the bass reflex port 121, which is beneficial for improving low-frequency acoustic performance.

[0041] In some examples, the subwoofer enclosure 12 can be symmetrically arranged about its longitudinal center plane. In some examples, the first bass reflex port 121a and the second bass reflex port 121b can be symmetrical about the longitudinal center plane of the subwoofer enclosure 12. In this case, the airflow on both sides of the longitudinal center plane of the subwoofer enclosure 12 can be kept balanced, reducing the risk of airflow bias and polarization of the subwoofer enclosure 12, and also helping to reduce airflow noise of the bass reflex port 121.

[0042] In some examples, the low-frequency speaker 11 can be mounted in the central region of the subwoofer enclosure 12. The low-frequency speaker 11 can be located between the first bass reflex port 121a and the second bass reflex port 121b. In this case, the vibration reaction force generated by the low-frequency speaker 11 during operation is closer to the geometric center of the subwoofer enclosure 12, which helps to reduce the eccentric force on the subwoofer enclosure 12 and the resulting overturning moment, thereby improving the force balance of the subwoofer enclosure 12 and increasing the placement stability of the base.

[0043] In some examples, the extension path of the phase inverter 121 may include at least one of a straight line segment, a broken line segment, and a curved segment.

[0044] In some examples, the extension path of the phase inverter 121 may consist only of a straight segment. In other words, the phase inverter 121 may have an airflow channel extending in a straight direction. In this case, it facilitates smooth airflow through the phase inverter 121, reduces airflow deflection, and can reduce airflow noise.

[0045] In some examples, the bass reflex port 121 may be located inside the subwoofer enclosure 12 and extend along a curved path.

[0046] In some examples, the extension path of the phase inverter 121 may consist only of a broken line segment or a curved segment. In some examples, the extension path of the phase inverter 121 may include two of the following: a straight line segment, a broken line segment, and a curved segment. In some examples, the extension path of the phase inverter 121 may include a straight line segment, a broken line segment, and a curved segment.

[0047] In some examples, the inlet and / or outlet ends of the phase inverter 121 may have edge transition structures, which may include at least one of rounded corners, chamfers, or flares. For example, the inlet and outlet ends of the phase inverter 121 may have flares. The inlet end of the phase inverter 121 may also have a flare and rounded corners. The outlet end of the phase inverter 121 may also have a flare and chamfers. In this case, by providing edge transition structures, airflow noise can be reduced.

[0048] In some examples, the thickness of the subwoofer enclosure 12 can be 35mm to 45mm. In some examples, the height of the low-frequency speaker 11 can be 35mm to 45mm, and the maximum axial dimension of the low-frequency speaker 11 in operating condition can be 40mm to 50mm. The maximum axial dimension of the low-frequency speaker 11 in operating condition refers to the maximum spatial dimension occupied by the low-frequency speaker 11 along its central axis when the input rated power is reached and the diaphragm vibrates to its maximum displacement. This dimension characterizes the maximum physical envelope range of the low-frequency speaker 11 along the axial direction under dynamic operating conditions.

[0049] In some examples, the low-frequency speaker 11 may include a magnetic circuit assembly disposed on the back side of the diaphragm of the low-frequency speaker 11. The upper surface of the magnetic circuit assembly may be flush with or protrude from the upper surface of the subwoofer enclosure 12.

[0050] In some examples, the diameter of the bass reflex tube 121 can be 24mm to 26mm. In some examples, the effective length of the bass reflex tube 121 can be 275mm to 324mm. The specific diameter and length of the bass reflex tube 121 need to be precisely calculated based on the overall structure of the low-frequency speaker assembly 1. In some examples, the effective volume of the subwoofer enclosure 12 can be 0.8L to 1.5L. The effective length of the bass reflex tube 121 refers to the acoustic equivalent length, including the physical length of the bass reflex tube 121 and the end corrections at both ends. The effective volume of the subwoofer enclosure 12 refers to the actual acoustic volume after deducting the space occupied by the low-frequency speaker 11, the bass reflex tube 121, the reinforcing ribs, and other components, rather than the geometric volume calculated from the external dimensions of the subwoofer enclosure 12. By reasonably setting the dimensions of the bass reflex tube 121 and the effective volume of the subwoofer enclosure 12, the tuning frequency of the low-frequency speaker assembly 1 can be within the range of 45Hz to 65Hz.

[0051] Preferably, the thickness of the subwoofer enclosure 12 can be 45mm, the height of the low-frequency speaker 11 can be 37mm, the maximum axial dimension of the low-frequency speaker 11 in the working state can be 42mm, the diameter of the bass reflex port 121 can be 26mm, the effective length of the bass reflex port 121 can be 324mm, the effective volume of the subwoofer enclosure 12 can be 1.5L, and the tuning frequency of the low-frequency speaker assembly 1 can be 55Hz. In this case, the dimensions of the bass reflex port 121 and the effective volume of the subwoofer enclosure 12 are matched to enable the low-frequency speaker assembly 1 to obtain a good low-frequency response at 55Hz.

[0052] In some examples, the first mid-high frequency speaker assembly 2a and the second mid-high frequency speaker assembly 2b may be symmetrical about the longitudinal center plane of the subwoofer enclosure 12.

[0053] In some examples, the sound output direction of the first mid-high frequency speaker 21a may be directed towards the front left of the subwoofer enclosure 12. In some examples, the sound output direction of the second mid-high frequency speaker 21b may be directed towards the front right of the subwoofer enclosure 12.

[0054] In some examples, the sound emission direction of the first mid-high frequency speaker 21a may form a first angle with the front direction of the subwoofer enclosure 12. In some examples, the sound emission direction of the second mid-high frequency speaker 21b may form a second angle with the front direction of the subwoofer enclosure 12. In some examples, the first angle and the second angle may be equal. In some examples, both the first angle and the second angle may be 45°. In this configuration, the sound output directions of the first mid-high frequency speaker 21a and the second mid-high frequency speaker 21b are respectively offset to the left and right sides relative to the front of the subwoofer enclosure 12. This allows the sound wave coverage area of ​​the mid-high frequency speakers to expand to the left and right sides of the subwoofer enclosure 12, thereby increasing the coverage range. The sound output directions of the first mid-high frequency speaker 21a and the second mid-high frequency speaker 21b are symmetrical, which can form a more balanced left and right sound field, improve the spatial distribution and sound field width of the left and right channels, and enhance the stereo listening experience. By separating the sound output directions of the first mid-high frequency speaker 21a and the second mid-high frequency speaker 21b from each other, it is also possible to reduce the excessive superposition of sound energy of the first mid-high frequency speaker 21a and the second mid-high frequency speaker 21b in the area directly in front of the subwoofer enclosure 12, which helps to reduce interference in local frequency bands or uneven sound field phenomena.

[0055] A second aspect of the present invention provides a base that may include the speaker system and housing as described in any of the above examples, wherein the speaker system may be disposed within the housing.

[0056] In some examples, the bottom of the housing may have a first sound outlet communicating with the sound output side of the low-frequency speaker 11. In some examples, the rear sidewall of the housing may have a second sound outlet communicating with the outlet end of the bass reflex tube 121. In some examples, the sidewall of the housing may have a third sound outlet communicating with the sound output side of the first mid-high frequency speaker 21a and a fourth sound outlet communicating with the sound output side of the second mid-high frequency speaker 21b.

[0057] In some examples, the first sound outlet may be positioned directly opposite the diaphragm of the low-frequency speaker 11. In some examples, the second sound outlet may be positioned directly opposite the outlet end of the bass reflex port 121. In some examples, the third sound outlet may be positioned directly opposite the diaphragm of the first mid-high frequency speaker 21a. In some examples, the fourth sound outlet may be positioned directly opposite the diaphragm of the second mid-high frequency speaker 21b.

[0058] In some examples, the housing may include an upper housing and a lower housing. The upper and lower housings are detachably connected. For example, the upper and lower housings can be connected by screws.

[0059] In some examples, the base may include a movable component. In some examples, the movable component may be connected to and support the housing, creating a gap between the bottom of the housing and the support surface. In some examples, the gap may communicate with the first sound outlet and the external space of the housing to form a sound outlet channel. The support surface refers to the external surface used to place and support the base, including but not limited to the support surface of a desktop, tabletop, cabinet, floor, or stand. In this case, the low-frequency speaker 11 can radiate sound waves outward through the sound outlet channel, and by utilizing the reflection of low-frequency sound waves from the support surface, the low-frequency sound waves can diffuse into the external space of the housing, thereby expanding the coverage range of the low-frequency sound waves.

[0060] In some examples, the housing may house a motherboard, a power supply assembly, and a column connector. In some examples, the subwoofer enclosure 12 may have a recess 122 to allow passage for at least one of the motherboard, power supply assembly, column connector, and moving assembly.

[0061] In some examples, the recess 122 may include a first recess 122a for accommodating the motherboard, power supply assembly, and column connector. In some examples, the first recess 122a may be located on the rear side of the subwoofer enclosure 12, between the first bass reflex port 121a and the second bass reflex port 121b. In some examples, the first recess 122a may be symmetrical about the longitudinal center plane of the subwoofer enclosure 12.

[0062] In some examples, the moving component may include multiple casters. For example, the moving component may include three casters. In some examples, the recess 122 may include a second recess 122b, a third recess 122c, and a fourth recess 122d for accommodating the casters. In some examples, the second recess 122b may be located on the front side of the subwoofer enclosure 12. In some examples, the second recess 122b may be symmetrical about the longitudinal center plane of the subwoofer enclosure 12. In some examples, the third recess 122c may be located on the left side of the subwoofer enclosure 12. In some examples, the fourth recess 122d may be located on the right side of the subwoofer enclosure 12. In some examples, the third recess 122c and the fourth recess 122d may be symmetrical about the longitudinal center plane of the subwoofer enclosure 12.

[0063] In some examples, the base may include a Bluetooth module 3, an audio processing module 4, and a power amplifier module 5. In some examples, the Bluetooth module 3, audio processing module 4, and power amplifier module 5 may be mounted on the motherboard. In some examples, the output of the Bluetooth module 3 may be connected to the input of the audio processing module 4, and the output of the audio processing module 4 may be connected to the input of the power amplifier module 5.

[0064] Figure 4 A schematic diagram of the transmission path of the audio signal involved in the example of the present invention is shown.

[0065] In some examples, Bluetooth module 3 can be used to receive audio data sent by an external terminal and output the corresponding audio signal to audio processing module 4. In some examples, audio processing module 4 can be used to process the audio signal to obtain low-frequency components, mid-high frequency components in the left channel audio signal, and mid-high frequency components in the right channel audio signal. In some examples, power amplification module 5 can be used to amplify the power of the low-frequency components, the mid-high frequency components in the left channel audio signal, and the mid-high frequency components in the right channel audio signal to drive the low-frequency speaker 11, the first mid-high frequency speaker 21a, and the second mid-high frequency speaker 21b to produce sound.

[0066] In some examples, the power amplifier module 5 may include a left channel output channel, a right channel output channel, and a low-frequency output channel that are independent of each other, for amplifying the mid-high frequency components in the left channel audio signal, the mid-high frequency components in the right channel audio signal, and the low-frequency components, respectively, to drive the first mid-high frequency speaker 21a, the second mid-high frequency speaker 21b, and the low-frequency speaker 11 to produce sound.

[0067] In some examples, the audio processing module 4 may include one or more audio processing units. For example, the audio processing module 4 may include two audio processing units, one for processing mid-to-high frequency audio signals and the other for processing low-frequency audio signals. It should be understood that the number, connection method, and specific deployment location of the audio processing units in the audio processing module 4 do not constitute a limitation on the present invention. Without changing the audio signal frequency division processing and separate output functions, it can also be implemented using a single multi-core processor, an integrated audio processing chip, multiple processors working together, or a combination of hardware circuits and software programs.

[0068] In some examples, the audio processing performed by audio processing module 4 may include frequency division, merging, or other audio processing.

[0069] In some examples, the audio signal may include a left channel audio signal and a right channel audio signal.

[0070] In some examples, the audio processing module 4 can perform frequency division processing on the left channel audio signal and the right channel audio signal. In some examples, the audio processing module 4 can perform merging processing on the low-frequency components of the left channel audio signal and the right channel audio signal.

[0071] The specific frequency division point can be determined according to actual needs. For example, the frequency division point can be set to 150Hz, but this application does not make a specific limitation on it.

[0072] It should be noted that the module division in this application is merely a logical functional division, and multiple modules can also be integrated. For example, the audio processing module 4 can be set up independently of the power amplifier module 5, or it can be integrated with the power amplifier module 5.

[0073] In some examples, the load-bearing connection area between the subwoofer enclosure 12 and the base may be provided with a reinforcing structure. In some examples, the reinforcing structure may be a reinforcing rib. In some examples, the reinforcing structure may also be a local thickening. In this case, the structural strength and stiffness of the load-bearing connection area can be improved, the load transfer between the subwoofer enclosure 12 and the base can be improved, and the possibility of deformation, cracking or loosening of the load-bearing connection area can be reduced, thereby improving structural stability and reliability.

[0074] In some examples, the load-bearing connection area between the subwoofer enclosure 12 and the base may be equipped with a vibration isolation structure. In some examples, the vibration isolation structure may include vibration isolation pads. In some examples, the vibration isolation pads are elastic. In this case, the elastic deformation and damping effect of the vibration isolation pads can be used to reduce the transmission of vibrations generated by the subwoofer enclosure 12 to the base, thereby reducing resonance, abnormal noise, or other noise caused by structural vibrations, and improving acoustic performance and user experience. At the same time, the vibration isolation pads can also buffer the contact impact between the subwoofer enclosure 12 and the base, reducing the risk of fatigue damage at the connection points.

[0075] In some examples, the reinforcing structure and the vibration isolation structure can be set at different locations in the load-bearing connection area.

[0076] While the present invention has been specifically described above in conjunction with the accompanying drawings and embodiments, it is to be understood that the above description does not limit the invention in any way. Those skilled in the art can make modifications and variations to the present invention as needed without departing from its essential spirit and scope, and all such modifications and variations fall within the scope of the present invention.

Claims

1. A speaker system for a base, characterized in that, The loudspeaker system includes a low-frequency loudspeaker assembly (1) and a mid-to-high frequency loudspeaker assembly (2). The low-frequency speaker assembly (1) includes a low-frequency speaker (11) and a bass enclosure (12). The low-frequency speaker (11) is mounted on the bass enclosure (12). The back side of the diaphragm of the low-frequency speaker (11) is connected to the inner cavity of the bass enclosure (12), and the front side of the diaphragm of the low-frequency speaker (11) is connected to the outer space of the bass enclosure (12). The mid-high frequency speaker assembly (2) includes a first mid-high frequency speaker assembly (2a) and a second mid-high frequency speaker assembly (2b), which are respectively disposed on the left and right sides of the subwoofer enclosure (12); The first mid-high frequency speaker assembly (2a) is used to output the mid-high frequency components in the left channel audio signal, the second mid-high frequency speaker assembly (2b) is used to output the mid-high frequency components in the right channel audio signal, and the low frequency speaker assembly (1) is used to output the low frequency components.

2. The loudspeaker system according to claim 1, characterized in that, The subwoofer enclosure (12) has a first clearance portion and a second clearance portion on its left and right sides, respectively. The first mid-high frequency speaker assembly (2a) is located in the first clearance portion, and the second mid-high frequency speaker assembly (2b) is located in the second clearance portion. The first mid-high frequency speaker assembly (2a) includes a first mid-high frequency speaker (21a) and a first mid-high frequency enclosure (22a). The second mid-high frequency speaker assembly (2b) includes a second mid-high frequency speaker (21b) and a second mid-high frequency enclosure (22b). The first mid-high frequency enclosure (22a) and the second mid-high frequency enclosure (22b) are respectively set independently of the subwoofer enclosure (12).

3. The loudspeaker system according to claim 1, characterized in that, The subwoofer enclosure (12) also includes a bass reflex port (121), the inlet end of which is connected to the inner cavity of the subwoofer enclosure (12), and the outlet end of which is connected to the outer space of the subwoofer enclosure (12).

4. The loudspeaker system according to claim 3, characterized in that, The bass reflex tube (121) includes a first bass reflex tube (121a) and a second bass reflex tube (121b), which are symmetrical about the longitudinal center plane of the subwoofer enclosure (12).

5. The loudspeaker system according to claim 3, characterized in that, The low-frequency speaker (11) emits sound towards the bottom of the bass enclosure (12), and the outlet end of the bass reflex tube (121) faces the rear side of the bass enclosure (12).

6. The loudspeaker system according to claim 2, characterized in that, The first mid-high frequency speaker assembly (2a) and the second mid-high frequency speaker assembly (2b) are symmetrical about the longitudinal center of the subwoofer enclosure (12). The sound output direction of the first mid-high frequency speaker (21a) is towards the left front of the subwoofer enclosure (12), and the sound output direction of the second mid-high frequency speaker (21b) is towards the right front of the subwoofer enclosure (12).

7. A base, characterized in that, The invention includes the loudspeaker system as described in any one of claims 1 to 6 and a housing, wherein the loudspeaker system is disposed within the housing.

8. The base according to claim 7, characterized in that, The subwoofer enclosure (12) includes a bass reflex port (121), the first mid-high frequency speaker assembly (2a) includes a first mid-high frequency speaker (21a), and the second mid-high frequency speaker assembly (2b) includes a second mid-high frequency speaker (21b). The bottom of the housing has a first sound outlet that communicates with the sound outlet side of the low frequency speaker (11), the rear side wall of the housing has a second sound outlet that communicates with the outlet end of the bass reflex port (121), and the side wall of the housing has a third sound outlet that communicates with the sound outlet side of the first mid-high frequency speaker (21a) and a fourth sound outlet that communicates with the sound outlet side of the second mid-high frequency speaker (21b).

9. The base according to claim 8, characterized in that, The base also includes a movable component that is connected to and supports the housing, so that a gap is formed between the bottom of the housing and the bearing surface, and the gap communicates with the first sound outlet and the external space of the housing to form a sound outlet channel.

10. The base according to claim 8, characterized in that, The base also includes a Bluetooth module (3), an audio processing module (4), and a power amplifier module (5). The output of the Bluetooth module (3) is connected to the input of the audio processing module (4), and the output of the audio processing module (4) is connected to the input of the power amplifier module (5). The Bluetooth module (3) is used to receive audio data sent by an external terminal and output the audio signal corresponding to the audio data to the audio processing module (4). The audio processing module (4) is used to process the audio signal to obtain the low-frequency component, the mid-high frequency component in the left channel audio signal and the mid-high frequency component in the right channel audio signal; The power amplification module (5) is used to amplify the power of the low-frequency component, the mid-high frequency component in the left channel audio signal and the mid-high frequency component in the right channel audio signal, so as to drive the low-frequency speaker (11), the first mid-high frequency speaker (21a) and the second mid-high frequency speaker (21b) to produce sound.

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