Bluetooth-based dual-channel power amplifier

Abstract

The utility model discloses a dual-channel power amplifier based on Bluetooth, which comprises a shell, two loudspeakers are fixedly arranged in the shell at intervals, a power amplification unit is fixedly arranged between the two loudspeakers, and a control processing unit is fixedly arranged adjacent to the power amplification unit. A Bluetooth unit is fixedly arranged on the inner wall of one side of the shell, the Bluetooth unit is connected with the control processing unit, audio interfaces are arranged on the side, adjacent to the Bluetooth unit, of the shell at intervals, and a power switch is arranged adjacent to the audio interfaces. The audio interface and the power switch are connected with the control processing unit. A plurality of cooling fins are arranged on the outer wall of the shell provided with the Bluetooth unit at intervals, and the cooling fins are made of brass materials. The number of the audio interface is at least one, and the audio interface is an RCA interface and an XLR interface. The Bluetooth unit adopts a TPA3118 type Bluetooth unit, and the power amplification unit adopts an ATA-M110 type unit. Supporting columns are arranged at the four corners of the bottom end of the shell, and the supporting columns are made of silica gel materials. According to the utility model, heat generated by the Bluetooth unit can be quickly and timely dissipated, and a series of defects of reduced dynamic range, increased distortion degree, unbalanced frequency spectrum, rough sound and unstable signals caused by high temperature of the Bluetooth unit can be avoided to the greatest extent. The utility model has strong practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of power amplifiers, in particular to a dual-channel power amplifier based on Bluetooth. Background Art

[0002] The disadvantages of Bluetooth amplifiers at present mainly include the following points: Sound quality problem: Since Bluetooth transmission is wireless transmission, its sound quality is related to the transmission medium and the compressed encoding method. Therefore, compared with wired connection, the sound quality of Bluetooth amplifiers may have problems. Although Bluetooth technology has been continuously improved, the sound quality problem still cannot be completely eliminated.

[0003] When the Bluetooth module of the Bluetooth amplifier heats up, it may indeed have a certain impact on the Bluetooth signal. The following is a detailed analysis and summary: Performance degradation:

[0004] When the Bluetooth module overheats, the internal electronic components may be affected by the high temperature, resulting in performance degradation. This may reduce the transmission stability of the Bluetooth signal, making the Bluetooth connection unstable or even disconnected. High temperature may also affect the output power of the audio amplifier, resulting in poor sound quality of the Bluetooth speaker, and users may hear problems such as distortion and noise.

[0005] Reduced dynamic range and increased distortion: As temperature rises, the internal resistance of electronic components increases, which can cause signal distortion and reduce the dynamic range of the audio. Users may feel that the audio layering is reduced and the sound becomes bland. At the same time, overheating of the amplifier will also cause increased distortion, and the sound quality will become noisy and chaotic, further affecting the user's listening experience.

[0006] Spectrum imbalance and rough sound: High temperature affects the frequency response curve, which may cause spectrum imbalance and change the timbre of the audio. Users may feel that the sound of certain frequency bands is emphasized or weakened.

[0007] In addition, overheating of the amplifier will cause the sound to become rough, lose its original delicate feeling, and sound very uncomfortable.

[0008] Therefore, in view of the above problems, a dual-channel power amplifier based on Bluetooth is needed. Utility Model Content

[0009] The purpose of the utility model is to provide a dual-channel power amplifier based on Bluetooth. The utility model rearranges the positions of the Bluetooth module, the control processing unit, and the power amplification unit in the Bluetooth channel power amplifier, and fixes the Bluetooth unit on the inner wall of the shell. By arranging multiple heat dissipation plates on the outer wall where the Bluetooth unit is arranged, the heat generated by the Bluetooth unit can be quickly and timely dissipated, and a series of drawbacks such as reduced dynamic range and increased distortion, unbalanced spectrum, rough sound, and unstable signal caused by high temperature problems of the Bluetooth unit can be avoided to the greatest extent. The utility model has strong practicality.

[0010] The utility model is achieved in this way:

[0011] A dual-channel power amplifier based on Bluetooth comprises a shell, in which two speakers are fixedly arranged at intervals, a power amplification unit is fixedly arranged between the two speakers, a control processing unit is fixedly arranged adjacent to the power amplification unit, a Bluetooth unit is fixedly arranged on the inner wall of one side of the shell, the Bluetooth unit is connected to the control processing unit, an audio interface is spaced apart on the side of the shell adjacent to the Bluetooth unit, a power switch is arranged adjacent to the audio interface, and the audio interface and the power switch are both connected to the control processing unit.

[0012] Furthermore, a plurality of heat sinks are arranged at intervals on the outer wall of the housing provided with the Bluetooth unit, and the heat sinks are made of brass. The heat sinks can quickly and timely discharge the heat generated by the Bluetooth unit, thereby avoiding the disadvantages of signal damage and instability caused by the high temperature of the Bluetooth unit.

[0013] Furthermore, the number of the audio interface is at least one, and the audio interface is an RCA interface or an XLR interface. The Bluetooth unit is a TPA3118 type Bluetooth unit, and the power amplifier unit is an ATA-M110 type unit.

[0014] Furthermore, support columns are provided at the four corners of the bottom end of the housing, and the support columns are made of silica gel material, which can filter the vibration generated by the entire power amplifier.

[0015] Compared with the prior art, the present invention rearranges the positions of the Bluetooth module, the control processing unit, and the power amplification unit in the Bluetooth channel amplifier, and fixes the Bluetooth unit on the inner wall of the housing, and sets a plurality of heat dissipation plates on the outer wall where the Bluetooth unit is set, so that the heat generated by the Bluetooth unit can be quickly and timely dissipated, and a series of drawbacks such as reduced dynamic range and increased distortion, unbalanced spectrum, rough sound, and unstable signal caused by high temperature problems of the Bluetooth unit can be avoided to the greatest extent. The present invention has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the device of the utility model;

[0018] Among them, there are a first speaker 1, a second speaker 11, a heat sink 2, an audio interface 3, a power switch 4, a control processing unit 5, a Bluetooth unit 51, a power amplification unit 6, and a support column 7. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0020] See also Figure 1 A dual-channel power amplifier based on Bluetooth comprises a housing, two speakers are fixedly arranged at intervals in the housing, a power amplification unit 6 is fixedly arranged between the two speakers, a control processing unit 5 is fixedly arranged adjacent to the power amplification unit 6, a Bluetooth unit 51 is fixedly arranged on the inner wall of one side of the housing, the Bluetooth unit 51 is connected to the control processing unit 5, an audio interface 3 is arranged at intervals on the side of the housing adjacent to the Bluetooth unit 51, a power switch 4 is arranged adjacent to the audio interface 3, and both the audio interface 3 and the power switch 4 are connected to the control processing unit. There is at least one audio interface 3, and the audio interface is an RCA interface or an XLR interface. The Bluetooth unit adopts a TPA3118 type Bluetooth unit, and the power amplification unit adopts an ATA-M110 type unit.

[0021] In this embodiment, a plurality of heat sinks 2 are arranged at intervals on the outer wall of the housing provided with the Bluetooth unit 51, and the heat sinks 2 are made of brass. The heat sinks 2 can quickly and timely discharge the heat generated by the Bluetooth unit, thereby avoiding the disadvantages of signal damage and instability caused by the high temperature of the Bluetooth unit.

[0022] In this embodiment, support columns 7 are provided at the four corners of the bottom end of the housing, and the support columns 7 are made of silica gel material. The silica gel material can filter the vibration generated by the entire power amplifier.

[0023] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dual-channel power amplifier based on Bluetooth, characterized by: The invention comprises a shell, wherein two loudspeakers are fixedly arranged at intervals in the shell, a power amplification unit (6) is fixedly arranged between the two loudspeakers, a control processing unit (5) is fixedly arranged adjacent to the power amplification unit (6), a Bluetooth unit (51) is fixedly arranged on the inner wall of one side of the shell, the Bluetooth unit (51) is connected to the control processing unit (5), an audio interface (3) is fixedly arranged on the side of the shell adjacent to the Bluetooth unit (51), a power switch (4) is arranged adjacent to the audio interface (3), and both the audio interface (3) and the power switch (4) are connected to the control processing unit (5); A plurality of heat sinks (2) are arranged at intervals on the outer wall of a housing provided with a Bluetooth unit (51), and the heat sinks (2) are made of brass.

2. A dual-channel power amplifier based on Bluetooth according to claim 1, characterized in that: The number of the audio interface (3) is at least one, and the audio interface (3) is an RCA interface or an XLR interface.

3. The dual-channel power amplifier based on Bluetooth according to claim 1, characterized in that: The Bluetooth unit (51) adopts a TPA3118 Bluetooth unit, and the power amplification unit adopts an ATA-M110 unit.

4. The dual-channel power amplifier based on Bluetooth according to claim 1, characterized in that: Support columns (7) are provided at the four corners of the bottom end of the shell, and the support columns (7) are made of silica gel.

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