Audio distribution box

Abstract

The utility model discloses an audio distribution box which is characterized in that the audio distribution box comprises a shell and a control mainboard located in the shell, one side of the shell is provided with a left channel audio input interface and a right channel audio input interface, and the other side of the shell is provided with a plurality of left channel TRS interfaces and a plurality of right channel TRS interfaces; the shell is provided with a plurality of left channel audio output interfaces and a plurality of right channel audio output interfaces; the input end of the control mainboard is electrically connected with the left channel audio input interface and the right channel audio input interface, and the output end of the control mainboard is electrically connected with the left channel TRS interface, the right channel TRS interface, the left channel audio output interface and the right channel audio output interface. Compared with the prior art, the audio distribution box is provided with a plurality of left and right channel audio output interfaces and TRS interfaces, has a multi-channel output capability, can meet the requirement of outputting multi-channel audio signals at the same time, and is suitable for various complex audio distribution scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to audio control field especially relates to an audio distribution box. BACKGROUND

[0002] With the continuous progress and promotion of audio technology, people's performance and function requirements of audio distributor are also constantly improved. Most of the existing audio distributors on the market usually have a limited number of interfaces, which leads to their inability to meet the demand of simultaneous output of multi-channel audio signals, thereby limiting the application scenarios and the possibility of functional expansion of these devices to a certain extent.

[0003] Therefore, based on the above problems, the existing audio distribution box needs to be improved to solve the above problems. SUMMARY

[0004] In view of the problems existing in the prior art, the utility model provides an audio distribution box, which is provided with a plurality of left and right channel audio output interfaces and TRS interfaces, has multi-channel output capability, can meet the demand of simultaneous output of multi-channel audio signals, and is suitable for various complex audio distribution scenes.

[0005] In order to solve the above technical problems, the technical scheme of the utility model is:

[0006] An audio distribution box comprises a shell and a control mainboard located in the shell, one side of the shell is provided with a left channel audio input interface and a right channel audio input interface, the other side of the shell is provided with a plurality of left channel TRS interfaces and a plurality of right channel TRS interfaces;

[0007] A plurality of left channel audio output interfaces and a plurality of right channel audio output interfaces are arranged on the shell;

[0008] The input end of the control mainboard is electrically connected with the left channel audio input interface and the right channel audio input interface, and the output end of the control mainboard is electrically connected with the left channel TRS interface, the right channel TRS interface, the left channel audio output interface and the right channel audio output interface.

[0009] As a preferred, the shell comprises a front panel, a rear panel and an intermediate panel, the front panel and the rear panel are respectively screw connected with the intermediate panel.

[0010] As a preferred, the control mainboard is provided with a plurality of first isolation transformers and a plurality of second isolation transformers, the primary winding of the first isolation transformer is connected with the left channel audio input interface, and the secondary winding of the first isolation transformer is connected with the left channel audio output interface or the left channel TRS interface;

[0011] The primary winding of the second isolation transformer is connected with the right channel audio input interface, and the secondary winding of the second isolation transformer is connected with the right channel audio output interface or the right channel TRS interface.

[0012] Preferably, the left channel audio input interface and the right channel audio input interface are both XLR sockets.

[0013] Preferably, the left channel audio output interface and the right channel audio output interface are both XLR plugs.

[0014] Preferably, the left channel audio output interface and the right channel audio output interface are both connected with ground switches.

[0015] Preferably, the shell is provided with a signal attenuation switch.

[0016] Preferably, the shell is provided with a channel switching switch electrically connected with the control mainboard.

[0017] Preferably, the shell is in the shape of a cuboid, and the shell is a metal shell, the length of the shell is 280 mm, the width of the shell is 98 mm, and the height of the shell is 51.5 mm.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The audio distribution box is provided with multiple left and right channel audio output interfaces and TRS interfaces, has multiple output capabilities, can meet the demand of simultaneously outputting multiple audio signals, and is suitable for various complex audio distribution scenes. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is the overall structure schematic view of the audio distribution box of the utility model.

[0021] Fig. 2 is the structure schematic view of another angle of the audio distribution box of the utility model.

[0022] Fig. 3 is the circuit diagram of the audio distribution box of the utility model.

[0023] BRIEF DESCRIPTION OF DRAWINGS: 1. shell; 2. left channel audio input interface; 3. signal attenuation switch; 4. channel switching switch; 5. right channel audio input interface; 6. left channel audio output interface; 7. ground switch; 8. right channel TRS interface; 9. left channel TRS interface; 10. first isolation transformer; 11. second isolation transformer; 12. right channel audio output interface. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings Figs. 1-3The specific embodiments of this utility model will be further described in detail to make the technical solution of this utility model easier to understand and master.

[0025] In this embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right side", "end", "front", "back", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, unless otherwise specified in this specific embodiment, the connection or fixing method between components can be achieved by bolt fixing, pin fixing, or pin connection commonly used in the prior art. Therefore, it will not be described in detail in this embodiment.

[0027] The following is in conjunction with the appendix Figs. 1-3 This application will be described in further detail.

[0028] like Figs. 1-3 As shown, an audio distribution box includes: a housing 1 and a control motherboard (not shown) located inside the housing 1. One side of the housing 1 is provided with a left channel audio input interface 2 and a right channel audio input interface 5 to facilitate user access to audio signals; the other side of the housing 1 is provided with multiple left channel TRS interfaces 9 and multiple right channel TRS interfaces 8, which are also used for audio signal access and output; the housing 1 is provided with multiple left channel audio output interfaces 6 and multiple right channel audio output interfaces 12, which are used to output the processed audio signals to external devices.

[0029] The input terminals of the control motherboard are electrically connected to the left channel audio input interface 2 and the right channel audio input interface 5, ensuring that the audio signal can be transmitted from the input interface to the control motherboard for processing; the output terminals of the control motherboard are electrically connected to the left channel TRS interface 9, the right channel TRS interface 8, the left channel audio output interface 6, and the right channel audio output interface 12, so that the processed audio signal can be transmitted to external devices through these output interfaces.

[0030] With multiple left and right channel audio output interfaces 12 and a TRS interface, it has multi-channel output capability, which can meet the needs of simultaneously outputting multiple audio signals and is suitable for various complex audio distribution scenarios.

[0031] The shell 1 comprises a front panel (not shown in the figure), a rear panel (not shown in the figure) and an intermediate panel (not shown in the figure) between them. In the actual assembly process, the front panel and the rear panel are connected with the intermediate panel by screws, which is stable and easy to disassemble, providing convenience for maintenance and upgrading of the shell 1. In addition, various interfaces and control elements can be installed on the front panel and the rear panel to meet the functional needs of different devices.

[0032] Specifically, the shell 1 is provided with a left channel audio input interface 2 and a right channel audio input interface 5 on one side, and a plurality of left channel TRS interfaces 9 and a plurality of right channel TRS interfaces 8 on the other side.

[0033] The control mainboard is provided with a plurality of first isolation transformers 10 and a plurality of second isolation transformers 11; the first isolation transformers 10 and the second isolation transformers 11 are AI T (Audio Isolation Technology) audio isolation technology isolation transformers. The role of these isolation transformers is to isolate audio signals, reduce signal interference and echo, improve the purity and stability of audio signals, and ensure the quality of audio transmission.

[0034] Specifically, the primary winding of the first isolation transformer 10 is connected with the left channel audio input interface 2, and the secondary winding is connected with the left channel audio output interface 6 or the left channel TRS interface 9, so as to realize the isolation and transmission of signals.

[0035] Similarly, the primary winding of the second isolation transformer 11 is connected with the right channel audio input interface 5, and the secondary winding is connected with the right channel audio output interface 12 or the right channel TRS interface 8, to ensure the isolation and transmission of the right channel audio signal.

[0036] In order to further improve the quality and safety of audio output, the left channel audio output interface 6 and the right channel audio output interface 12 both adopt the design of Karon plug. The Karon plug has stability and durability, reliable connection and strong universality, and can provide reliable audio connection.

[0037] At the same time, the left channel audio output interface 6 and the right channel audio output interface 12 are both connected with the grounding switch 7, which can effectively prevent the distortion of audio signals caused by static electricity or other interference, ensure the purity of audio output, and also effectively reduce the ground noise interference and optimize the audio transmission performance.

[0038] In the embodiment, the shell 1 is provided with a signal attenuation switch 3, specifically, a signal attenuation switch 3 is arranged on the front panel, which controls the attenuation state of the audio signal, and the user can adjust the intensity of the signal according to the actual needs to achieve the best listening effect, meet different audio application requirements, the operation is simple, and the practicability and functionality of the product are enhanced.

[0039] In addition, the shell 1 is provided with a sound channel switching switch 4 electrically connected with the control mainboard, specifically, a sound channel switching switch 4 is arranged on the front panel. The sound channel switching switch 4 allows the user to switch between stereo mode and monaural mode to adapt to different listening needs and scenes, the operation is simple, and the practicability and functionality of the product are enhanced.

[0040] In the embodiment, the left channel audio input interface 2 and the right channel audio input interface 5 adopt the design of the Karon socket. The Karon socket has stable signal transmission performance, reliable connection and strong universality, and can ensure high-quality access of the audio signal.

[0041] In addition, in order to ensure the durability and stability of the audio distribution box, the shell 1 adopts a metal material. The metal shell 1 can not only provide good shielding effect to prevent external electromagnetic interference, but also increase the firmness of the device. Moreover, the overall design of the shell 1 is in the shape of a rectangular parallelepiped, which is not only beautiful but also practical, and can effectively protect the internal control mainboard and other electronic components. Then, the specific size of the shell 1 is 280mm in length, 98mm in width and 51.5mm in height. Such size design not only ensures the reasonable layout of the internal components, but also ensures the portability of the device, which is convenient for the user to use in different occasions.

[0042] The technical effects of the utility model mainly embody in the following aspects:

[0043] The audio distribution box is provided with a plurality of left and right channel audio output interfaces and TRS interfaces, has multi-channel output capability, can meet the demand of simultaneously outputting multiple audio signals, and is suitable for various complex audio distribution scenes.

[0044] Of course, the above is only a typical example of the utility model, in addition to this, the utility model can have other various specific implementation manners, and the technical solutions formed by equivalent replacement or equivalent transformation all fall within the scope required for protection of the utility model.

Claims

1. An audio distribution box characterized by, The utility model relates to a stereo amplifier, including: A shell (1) and control mainboard in the shell (1), one side of the shell (1) is equipped with left channel audio input interface (2) and right channel audio input interface (5), the other side of the shell (1) is equipped with a plurality of left channel TRS interface (9) and a plurality of right channel TRS interface (8); The shell (1) is equipped with a plurality of left channel audio output interface (6) and a plurality of right channel audio output interface (12); The input end of the control mainboard is electrically connected with the left channel audio input interface (2), right channel audio input interface (5), and the output end of the control mainboard is electrically connected with the left channel TRS interface (9), right channel TRS interface (8), left channel audio output interface (6) and right channel audio output interface (12).

2. The audio distribution box of claim 1, wherein, The shell (1) includes a front panel, a rear panel and an intermediate panel, and the front panel and the rear panel are respectively screwed with the intermediate panel.

3. The audio distribution box of claim 1, wherein, The control mainboard is equipped with a plurality of first isolation transformer (10) and a plurality of second isolation transformer (11), the primary winding of the first isolation transformer (10) is connected with the left channel audio input interface (2), and the secondary winding of the first isolation transformer (10) is connected with the left channel audio output interface (6) or the left channel TRS interface (9); The primary winding of the second isolation transformer (11) is connected with the right channel audio input interface (5), and the secondary winding of the second isolation transformer (11) is connected with the right channel audio output interface (12) or the right channel TRS interface (8).

4. The audio distribution box of claim 1, wherein, The left channel audio input interface (2) and the right channel audio input interface (5) are both jack sockets.

5. The audio distribution box of claim 1, wherein, The left channel audio output interface (6) and the right channel audio output interface (12) are both jack plugs.

6. The audio distribution box of claim 1, wherein, The left channel audio output interface (6) and the right channel audio output interface (12) are connected with the grounding switch (7).

7. The audio distribution box of claim 1, wherein, The shell (1) is provided with a signal attenuation switch (3).

8. The audio distribution box of claim 1, wherein, The shell (1) is provided with a channel switching switch (4) electrically connected with the control mainboard.

9. The audio distribution box of claim 1, wherein, The shell (1) is in the shape of a cuboid, and the shell (1) is a metal shell (1), the length of the shell (1) is 280mm, the width of the shell (1) is 98mm, and the height of the shell (1) is 51.5mm.

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