Musical instrument cabinet

Abstract

The application discloses a musical instrument sound box, comprising: a master control module, comprising a master control board, the master control board being provided with a function slot; a sound source input module, comprising an interface assembly; at least one channel expansion module, comprising a sub-function card and at least one sub-input interface, the sub-function card being plugged into the function slot to realize electrical connection; a sound source processing module; a sound source output module; and a power module, connected with the master control module. By plugging at least one channel expansion module into the master control board of the master control module, the master control module detects and identifies the signal of the function slot, adds a new input channel formed by the sub-input interface into a total input channel list, and thus a user does not need to replace a sound box main body or a complete sound source input module, but only needs to increase or decrease the number of the channel expansion modules to adjust the total number of input channels, realizes the function of flexible customization of the input channels, and makes the musical instrument sound box adapt to different scenes from single person to multi-person cooperation, and improves the flexibility and universality of the musical instrument sound box.

Description

Technical Field

[0001] This application relates to the field of audio equipment, and in particular to a musical instrument speaker enclosure. Background Technology

[0002] A musical instrument amplifier is an audio device designed to amplify the sound of musical instruments such as electric guitars, basses, and electronic keyboards. For professional musicians and recording studio users, the number and type of input interfaces are core requirements. Furthermore, different application scenarios, such as solo practice, band rehearsals, live performances, and multi-track recording, have vastly different requirements for the number of interfaces on a musical instrument amplifier.

[0003] In related technologies, the number and type of input channels of musical instrument amplifiers are determined at the factory, and users cannot change them according to subsequent needs. This fixed design limits the applicability of musical instrument amplifiers, reduces their flexibility and convenience of use, and makes it difficult to meet the dynamic needs of professional users in diverse scenarios. Utility Model Content

[0004] The main purpose of this application is to propose a musical instrument speaker enclosure that aims to improve the flexibility of the instrument enclosure.

[0005] To achieve the above objectives, this application proposes a musical instrument speaker enclosure, comprising: The main control module includes a main control board, which is provided with functional slots. A sound source input module is connected to the main control module. The sound source input module includes an interface component for receiving electrical signals from musical instruments. At least one channel expansion module includes a sub-function card and at least one sub-input interface. The sub-function card is plugged into the function slot to achieve electrical connection, and the sub-input interface is connected to the sub-function card. The sub-input interface is used to receive electrical signals input from musical instruments. A sound source processing module is connected to the main control module and is used to process the electrical signals received by the interface component and the sub-input interface. The audio source output module is connected to the main control module. The audio source output module is used to receive the electrical signals processed by the audio source processing module and convert the received electrical signals into sound signals. The power supply module is connected to the main control module.

[0006] In some embodiments, the sub-function card includes a sub-PCB, which is plugged into the function slot to achieve electrical connection.

[0007] In some embodiments, the end of the subPCB that is connected to the functional slot has a protruding connecting portion, and the connecting portion is inserted into the functional slot.

[0008] In some embodiments, the channel expansion module further includes an adjustment component connected to the sub-PCB, the adjustment component being used to adjust the signal received by the sub-input interface.

[0009] In some embodiments, the instrument speaker enclosure further includes a housing with an internal cavity, the main control module and the sound source processing module being located in the cavity, and the interface components and the sub-input interface being exposed in the housing for connection of the instrument.

[0010] In some embodiments, the channel expansion module further includes a connection plate, on which the sub-input interface and the adjustment component are disposed, and the connection plate is detachably connected to the housing.

[0011] In some embodiments, the sound source processing module includes a DSP effect unit, which is disposed in the accommodating cavity and connected to the main control module.

[0012] In some embodiments, the housing is further provided with a main control panel, which includes a plurality of operating components.

[0013] In some embodiments, the main control panel further includes a display screen and / or indicator lights.

[0014] In some embodiments, the interface type of the functional slot is Mini PCI-E; and / or, The sub-input interface is of type XLR interface or TRS / TS interface.

[0015] The instrument speaker of this application includes a main control module, a sound source input module, a channel expansion module, a sound source processing module, and a power supply module. The sound source input module serves as the basic input channel and includes an interface component. When a user practices alone, they can connect the instrument through the basic interface component. When a band rehearse or performs live and needs to connect multiple instruments, at least one channel expansion module is inserted into the main control board of the main control module. The main control module detects and identifies the signals of the function slots and adds the new input channel formed by the sub-input interface to the total input channel list. Thus, the user does not need to replace the main speaker or the entire sound source input module. By simply increasing or decreasing the number of channel expansion modules, the total number of input channels can be adjusted, achieving flexible customization of input channels. This allows the instrument speaker to adapt to different scenarios from single-person to multi-person collaboration, improving the flexibility and versatility of the instrument speaker. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a musical instrument speaker box in one embodiment of this application; Figure 2 for Figure 1 Schematic diagram of AA section in the middle; Figure 3 This is an exploded schematic diagram of a musical instrument speaker box in one embodiment of this application; Figure 4 This is a schematic diagram of the channel expansion module in one embodiment of this application; Figure 5 This is a schematic diagram of the frame of a musical instrument speaker in one embodiment of this application. Detailed Implementation

[0017] The solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0018] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0019] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0020] Furthermore, the use of terms such as "first" and "second" in this application is 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0021] This application proposes a musical instrument speaker 100. Please refer to the following: Figures 1 to 5 In one embodiment, the instrument speaker 100 includes: Main control module 1, including main control board 11, the main control board 11 is provided with function slots; The sound source input module 2 is connected to the main control module 1. The sound source input module 2 includes an interface component, which is used to receive the electrical signals of the musical instrument. At least one channel expansion module 3 includes a sub-function card 31 and at least one sub-input interface 32. The sub-function card 31 is plugged into a function slot to achieve electrical connection. The sub-input interface 32 is connected to the sub-function card 31 and is used to receive electrical signals input from musical instruments. Audio source processing module 4 is connected to the main control module 1. Audio source processing module 4 is used to process the electrical signals received by the interface component and the sub-input interface 32. The audio source output module 5 is connected to the main control module 1. The audio source output module 5 is used to receive the electrical signals processed by the audio source processing module 4 and convert the received electrical signals into sound signals. Power module 6 is connected to main control module 1.

[0022] In this embodiment, the main control module 1 serves as the control center of the instrument speaker 100, including a main control board 11 with function slots, which are key interfaces for connecting the channel expansion module 3. The main control module 1 is responsible for coordinating the signal scheduling and command transmission of all modules, including sound source input, channel expansion, and sound source processing, ensuring stable electrical connections and smooth data interaction between modules.

[0023] In one embodiment, the main control module 1 may further include an MCU.

[0024] In this embodiment, the sound source input module 2 undertakes the basic sound source input function. It includes an interface component that is specifically designed to receive the original electrical signals output by musical instruments such as electric guitars, basses, and electronic keyboards. It is the core component for the instrument speaker 100 to acquire the basic sound source.

[0025] In this embodiment, the interface component may include multiple different types of input interfaces, which serve as the basic input channels of the instrument speaker 100, allowing users to connect different musical instruments and devices. When users require more input channels, they can add input channels individually using the channel expansion module 3.

[0026] In this application embodiment, there are several options for configuring the channel expansion module 3. In a preferred embodiment, please refer to... Figure 4 The channel expansion module 3 includes a sub-function card 31 and at least one sub-input interface 32. As a core expansion component, the sub-function card 31 matches the function slot of the main control board 11 and is connected to the main control module 1 by plugging and unplugging. The sub-input interface 32 can be used to connect external musical instrument signals, thereby flexibly increasing the number of input channels.

[0027] In this embodiment, the number of sub-input interfaces 32 can be selected in various ways, such as 1, 2, 3 or 4, etc. The specific number can be determined according to actual needs, and this application does not impose any restrictions.

[0028] In this embodiment, the number of channel expansion modules 3 can be varied, such as one or two or more. When more input channels are needed, multiple channel expansion modules 3 can be plugged in simultaneously to increase the number of input channels. Correspondingly, the number of function slots on the main control board 11 can also be multiple, and this application does not impose any specific limitations on this.

[0029] In this embodiment, the audio source processing module 4 serves as the core of signal optimization, specifically processing the input raw electrical signal, such as amplification, equalization, and filtering.

[0030] In this embodiment, the sound source output module 5 is responsible for electroacoustic conversion and propagating the sound signal.

[0031] In this embodiment, the power module 6 supplies power to the entire instrument speaker 100 system. In one embodiment, household AC power can be converted into a stable DC power supply required by each module, while ensuring circuit safety and preventing damage to the equipment from overload or overheating.

[0032] In this embodiment, the instrument speaker 100 is provided with a main control module 1, a sound source input module 2, a channel expansion module 3, a sound source processing module 4, and a power module 6. The sound source input module 2 serves as a basic input channel and includes an interface component. When a user practices alone, they can connect an instrument through the basic interface component. When a band rehearse or a live performance requires multiple instruments, multiple channel expansion modules 3 are plugged into the main control board 11 of the main control module 1. The main control module 1 detects and identifies the signals of the function slots and adds the new input channel formed by the sub-input interface 32 to the total input channel list. Thus, the user does not need to replace the speaker body or the entire sound source input module 2. By simply increasing or decreasing the number of channel expansion modules 3, the total number of input channels can be adjusted, realizing the function of flexible customization of input channels. This allows the instrument speaker 100 to adapt to different scenarios from single-person to multi-person collaboration, improving the flexibility and versatility of the instrument speaker 100.

[0033] In this embodiment, the sub-function card 31 can be configured in several ways. In a preferred embodiment, the sub-function card 31 includes a sub-PCB, which is inserted into a function slot to achieve electrical connection. The sub-PCB serves as the core hardware foundation of the sub-function card 31, and completes the electrical connection when inserted into the function slot of the main control board 11. When a musical instrument is connected to the sub-input interface 32, the raw electrical signal output by the instrument is directly transmitted to the sub-PCB, and then enters the main control module 1 through the function slot. The main control module 1 uniformly schedules this signal and the signal from the sound source input module 2 to the sound source processing module 4.

[0034] In this embodiment, the sub-function card 31 is configured as a sub-PCB, which eliminates the need for a separate casing and complex connectors, saving hardware costs. Furthermore, when upgrades are needed, only the sub-PCB needs to be replaced, rather than the entire module or instrument amplifier 100, reducing user costs. Finally, the small size of the sub-PCB, when applied to the channel expansion module 3, makes the channel expansion module 3 compact, allowing for a more compact and portable design of the instrument amplifier 100, facilitating user handling and use.

[0035] In one embodiment, a preamplifier circuit and a digital-to-analog converter circuit are provided on the sub-PCB. The preamplifier circuit amplifies the original electrical signal input from the musical instrument, which is beneficial for the subsequent digital-to-analog converter circuit to recognize it. The digital-to-analog converter circuit converts the electrical signal into a digital signal that can be recognized by the sound source processing module 4.

[0036] In this application embodiment, there are several options for the sub-PCB configuration. In a preferred embodiment, please refer to... Figure 4 The sub-PCB has a protruding connecting part 311 at one end where it connects to the function slot. The connecting part 311 is inserted into the function slot. It can be understood that the connecting part 311 is the gold finger of the sub-PCB. The connecting part 311 can fit tightly with the contact of the function slot to realize the electrical connection between the sub-function card 31 and the main control board 11, so that the main control module 1 can recognize the channel expansion module 3 and increase the input channel.

[0037] In this embodiment, the channel expansion module 3 can also individually adjust the equalization or gain of the added input channels. In one embodiment, please refer to... Figure 4 The channel expansion module 3 also includes an adjustment component 33, which is connected to the sub-PCB and is used to adjust the signal received by the sub-input interface 32.

[0038] In this application embodiment, the adjustment component 33 can be configured in several ways. In a preferred embodiment, the adjustment component 33 includes multiple knobs 331. The knobs 331 serve as the direct interactive interface for the user. When the user is using an electric bass, they can increase the low-frequency gain and reduce high-frequency noise by operating the knobs 331. Similarly, when the user is using an electric guitar, the input channel connected to the electric guitar can be used to enhance the mid-frequency tone, improving flexibility.

[0039] Please refer to Figure 2 and Figure 3 In one embodiment, the instrument speaker 100 further includes a housing 200, with a receiving cavity 210 inside the housing 200. The main control module 1 and the sound source processing module 4 are located in the receiving cavity 210, and the interface components and sub-input interfaces 32 are exposed in the housing 200 for instrument connection.

[0040] In this embodiment, the outer shell 200 serves as the basic load-bearing component of the entire musical instrument speaker 100. Its main function is to house various modules, provide them with protection, prevent external moisture or dust from entering the interior of the outer shell 200 and causing damage to the internal modules, thereby extending the service life of the musical instrument speaker 100.

[0041] In this embodiment, the outer shell 200 can be made of various materials, such as metal or high-strength engineering plastics, balancing protection and lightweight requirements to suit different scenarios such as single-person practice and fixed installation in recording studios. Of course, the above are merely examples; the specific material can be determined according to actual needs, and this application does not impose any limitations.

[0042] In this embodiment of the application, the outer shell 200 is constructed with an interface hole, so that the interface component is fixed by a nut or a buckle and exposed at the interface hole of the outer shell 200, and the ends of the interface component are respectively connected to the main control module 1 of the accommodating cavity 210.

[0043] Please refer to Figure 4 In one embodiment, the channel expansion module 3 further includes a connecting plate 34, on which the sub-input interface 32 and the adjustment component 33 are disposed, and the connecting plate 34 is detachably connected to the housing 200.

[0044] Please refer to Figure 3 and Figure 4 This can be understood as follows: the outer casing 200 has a port for inserting the sub-function card 31, and the connecting plate 34 can be installed over the port. On the one hand, the connecting plate 34 can improve the connection strength of the channel expansion module 3 in the instrument speaker 100 and improve the stability of use; on the other hand, the connecting plate 34 can also seal the port, protecting the sub-function card 31 and other modules in the accommodating cavity 210 from dust and moisture entering.

[0045] In this application embodiment, there are several options for the detachable connection method between the connecting plate 34 and the housing 200. In a preferred embodiment, the connecting plate 34 and the housing 200 are detachably connected by bolts. Bolted connections can improve the connection strength between the connecting plate 34 and the housing 200.

[0046] By setting up the connection plate 34, the sub-function card 31, sub-input interface 32 and adjustment component 33 are combined into a whole module, improving the user experience.

[0047] In this application embodiment, the audio processing module 4 can be implemented in various ways. In a preferred embodiment, the audio processing module 4 includes a DSP effects unit, which is disposed in the accommodating cavity 210 and connected to the main control module 1.

[0048] In this embodiment, the DSP effects processor, as the core of the sound source processing module 4, is a key component for realizing digital optimization of instrument timbre and generation of diverse sound effects. It may include DSP chips, such as TI TMS320C6748 and ADI SHARCADSP-21489. Of course, the above is only an example, and the specific type can be determined according to actual needs. This application does not impose any restrictions here.

[0049] By setting the DPS effects, the tone of the instrument can be balanced. The DSP effects can also generate special effects, enhancing the functionality of the instrument amplifier 100 and meeting the needs of professional scenarios.

[0050] Please refer to Figure 1 and Figure 3 In one embodiment, the housing 200 is further provided with a main control panel 300, which includes a plurality of operating components 310.

[0051] In this embodiment, the main control panel 300 and multiple operating components 310 form the core of the human-computer interaction of the instrument speaker 100. For example, the operating components 310 can be knobs, which enable centralized control of system parameters through physical knobs. The main control panel 300 can be made of high-strength ABS panel or brushed metal panel, and can be integrally formed with the outer shell 200 or detachably connected by bolts.

[0052] In this embodiment, the operating component 310 may include a master volume knob to adjust the overall output volume of the sound source output module 5 and control the final sound signal intensity; it may also include a master equalizer knob connected to the DSP effects unit to adjust the frequency balance of the overall tone, such as 60Hz for bass, 500Hz for midrange, and 10kHz for treble, to suit different music styles, etc. Of course, the above is only an example, and the specific knob functions can be determined according to actual needs, which is not limited in this application.

[0053] Please refer to Figure 3 In this embodiment of the application, the main control panel 300 also includes a display screen 320.

[0054] The type of display screen 320 can be LCD, OLED, etc., depending on the actual needs, and this application does not impose any restrictions.

[0055] When the sub-function card 31 of the channel expansion module 3 is inserted into the function slot of the main control module 1, the main control module 1 detects the access signal of the new channel through the I2C bus and collects the key information of the channel. The MCU of the main control module 1 parses the collected channel information and converts it into display data that the display screen 320 can recognize. The MCU transmits the display data to the display screen 320 through the bus, drives the display screen 320 to light up and display the new channel information, so that the instrument speaker 100 has status visualization and reduces the complexity of monitoring.

[0056] In this embodiment, an indicator light is also provided on the main control panel. The light signal of the indicator light can quickly transmit key information such as channel status and system working mode, realizing the functions of intuitive feedback, rapid identification, and accurate early warning, and forming a collaborative interaction with the display screen 320 and the knob.

[0057] In some embodiments, the interface type of the function slot can be Mini PCI-E.

[0058] In some embodiments, the sub-input interface 32 may be of type XLR interface or TRS / TS interface.

[0059] In this embodiment, the sound source output module 5 includes a speaker, which is exposed on the housing 200 and is capable of transmitting sound signals. The number of speakers can be varied. For example, there can be multiple speakers, which can be classified as tweeters, midrange speakers, and woofers, with clear division of labor, accurately covering the full frequency range of musical instruments and adapting to the needs of multiple instruments.

[0060] For further details, please refer to... Figure 2 A dustproof mesh 220 can also be installed on the speaker to prevent dust accumulation and affect the speaker's output performance. The dustproof mesh 220 is detachably connected to the outer casing 200 by bolts.

[0061] The above are only some or preferred embodiments of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A musical instrument speaker, characterized in that, include: The main control module includes a main control board, which is provided with functional slots. A sound source input module is connected to the main control module. The sound source input module includes an interface component for receiving electrical signals from musical instruments. At least one channel expansion module includes a sub-function card and at least one sub-input interface. The sub-function card is plugged into the function slot to achieve electrical connection, and the sub-input interface is connected to the sub-function card. The sub-input interface is used to receive electrical signals input from musical instruments. A sound source processing module is connected to the main control module and is used to process the electrical signals received by the interface component and the sub-input interface. The audio source output module is connected to the main control module. The audio source output module is used to receive the electrical signals processed by the audio source processing module and convert the received electrical signals into sound signals. The power supply module is connected to the main control module.

2. The musical instrument speaker according to claim 1, characterized in that, The sub-function card includes a sub-PCB, which is plugged into the function slot to achieve electrical connection.

3. The musical instrument speaker according to claim 2, characterized in that, The subPCB has a connecting part protruding at one end where it connects to the functional slot, and the connecting part is inserted into the functional slot.

4. The musical instrument speaker according to claim 2, characterized in that, The channel expansion module also includes an adjustment component connected to the sub-PCB, which is used to adjust the signal received by the sub-input interface.

5. The musical instrument speaker according to claim 4, characterized in that, The instrument speaker also includes a housing, inside which is a receiving cavity. The main control module and the sound source processing module are located in the receiving cavity, and the interface components and the sub-input interfaces are exposed in the housing for the instrument to connect to.

6. The musical instrument speaker according to claim 5, characterized in that, The channel expansion module also includes a connection plate, on which the sub-input interface and the adjustment component are disposed, and the connection plate is detachably connected to the housing.

7. The musical instrument speaker according to claim 5, characterized in that, The sound source processing module includes a DSP effect unit, which is located in the accommodating cavity and is connected to the main control module.

8. The musical instrument speaker according to claim 5, characterized in that, The outer casing is also provided with a main control panel, which includes multiple operating components.

9. The musical instrument speaker according to claim 8, characterized in that, The main control panel also includes a display screen and / or indicator lights.

10. The musical instrument speaker according to claim 1, characterized in that, The interface type of the functional slot is MiniPCI-E; and / or, The sub-input interface is of type XLR interface or TRS / TS interface.

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