CN207652611U - Sound power amplification system and sound equipment - Google Patents

Abstract

A kind of sound power amplification system of the utility model, including interchanger, power amplifier module and for being electrically connected the interchanger and the power amplifier module and by the cellular-type cable of the signal transmission of the interchanger to the power amplifier module；The cellular-type cable includes power cord and Network transmission line；The interchanger includes DC power supply, the signal input interface for input signal and at least one signal output interface group for signal output, and the signal output interface group includes the first power interface for connecting the power cord and the first network interface for connecting the Network transmission line；The power amplifier module includes at least signal receiving interface group, and the signal receiving interface group includes second source interface and the second network interface.Direct current and network signal are separately transmitted by the utility model by the way that the signal output interface group connected for the cellular-type cable is arranged on the interchanger, and the output power of the interchanger is improved with this.

Description

Sound amplifier system and audio

technical field

The utility model belongs to the technical field of electronic equipment, in particular to a sound amplifier system and a sound system.

Background technique

The traditional POE switch uses the power supply of the switch chip module, the voltage is 48V, due to the limitation of the diameter of the network cable, the current is insufficient, the glass head of the international standard network cable can only provide 25W power, and in the audio and video system, the 25W power cannot drive large Speakers with low power have the problem of insufficient power, and the scope of application is limited.

Utility model content

The purpose of the utility model is to provide a sound power amplifier system, aiming to solve the technical problem that the power of the traditional POE switch is too small to reach the high power required by the speaker.

The utility model is achieved in this way, a sound power amplifier system, used to expand the output power of the audio signal, including a switch, a power amplifier module and for electrically connecting the switch and the power amplifier module and transmitting the signal of the switch to The separated network cable of the power amplifier module;

The divided network cable includes a power cable for transmitting electricity and a network transmission cable for transmitting signals;

The switch includes a DC power supply, a signal input interface for inputting signals, and at least one signal output interface group for outputting signals received from the signal input interface, and the signal output interface group includes A first power interface electrically connected to one end of the power line and a first network interface connected to the signal input interface and used to connect to one end of the network transmission line;

The power amplifier module at least includes a signal receiving interface group for receiving the output signal of the switch, and the signal receiving interface group includes a second power interface for connecting the other end of the power line and a second power interface for connecting to the network The second network interface at the other end of the transmission line.

Further, there are four signal output interface groups.

Further, there are two DC power supplies, each of which has two electrical output terminals, and each of the electrical output terminals is connected to one of the first power supply interfaces.

Further, the DC power supply is a 24V phantom power supply.

Further, the network transmission line includes 8 wire cores wound in pairs.

Further, the sound amplifier system further includes a network cable sheath for wrapping the network transmission line.

Further, there are two power cords.

Further, the cross-sectional area of the power cord is 0.5 square millimeters.

Further, the sound amplifier system further includes an outer sheath for wrapping the power line and the network transmission line as a whole.

The utility model also provides a sound system, which includes the above-mentioned sound amplifier system.

The technical effect of the utility model relative to the prior art is: the utility model transmits the direct current and the network signal separately by setting the signal output interface group on the switch for the connection of the separated network cable, thereby improving the output power of the switch. When the audio system needs to be driven by high power, it is only necessary to change the power of the DC power supply.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the accompanying drawings that need to be used in the embodiments of the utility model or the description of the prior art. Obviously, the accompanying drawings described below are only the present invention. For some embodiments of the utility model, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of the sound amplifier system that the utility model embodiment provides;

Fig. 2 is a schematic structural diagram of a switch provided by an embodiment of the present invention.

Explanation of reference signs:

1 switch 3 split network cable

10 Signal output interface group 31 Power cord

11 First power connector 311 First power connector

12 1st network port 312 2nd power connector

13 Signal input interface 32 Network transmission line

14 DC power supply 321 First network connector

2 Amplifier module 322 Second network connector

20 signal receiving interface group

21 Second power connector

22 Second network interface

23 audio interface

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Please refer to Fig. 1 and Fig. 2, the utility model embodiment provides a kind of sound power amplifier system, is used for expanding the output power of audio signal, comprises switchboard 1, power amplifier module 2 and is used for electrically connecting described switchboard 1 and described power amplifier module 2 and transmit the signal of the switch 1 to the divided network cable 3 of the power amplifier module 2;

The divided network cable 3 includes a power supply line 31 for transmitting electricity and a network transmission line 32 for transmitting signals;

The switch 1 includes a DC power supply 14, a signal input interface 13 for inputting signals, and at least one signal output interface group 10 for outputting signals received from the signal input interface 13, and the signal output interface group 10 It includes a first power interface 11 electrically connected to the DC power supply 14 and used to connect the power line 31, and a first network interface 12 connected to the signal input interface 13 and used to connect the network transmission line 32;

The power amplifier module 2 at least includes a signal receiving interface group 20 for receiving the output signal of the switch 1, and the signal receiving interface group 20 includes a set of all power ports that are used to connect one end of which has been electrically connected to the first power interface 11. The second power interface 21 at the other end of the power line 31 and the second network interface 22 used to connect the other end of the network transmission line 32 whose one end has been electrically connected with the first network interface 12 . The power amplifier module also includes an audio interface 23 for connecting with an audio.

The power cord 31 includes a first power connector 311 arranged at one end thereof for connecting with the first power interface 11 and a second power connector 311 arranged at the other end for connecting with the second power interface 21 Connector 312. The network transmission line 32 includes a first network connector 321 arranged at one end thereof for connecting with the first network interface 12 and a second network connector 321 arranged at the other end for connecting with the second network interface 22 Connector 322.

In the utility model, the signal output interface group 10 that can be connected to the separated network cable 3 is arranged on the switch 1 to transmit the direct current and the network signal separately, thereby improving the output power of the switch 1 . When the sound needs to be driven by high power, only the power of the DC power supply 14 needs to be changed.

Preferably, there are four signal output interface groups 10 . When the size of the existing switch 1 is guaranteed, four signal output interface groups 10 are provided, which is more conducive to production, processing and improvement.

Preferably, there are two DC power supplies 14 , each of which has two electrical output terminals, and each of the electrical output terminals is connected to one of the first power supply interfaces 11 . Such a DC power supply 14 corresponds to the two first power interfaces 11 , and the output power of each of the first power interfaces 11 is half of the received power of the switch 1 .

Preferably, the DC power supply 14 is a 24V phantom power supply. The phantom power supply has outstanding advantages such as wide frequency bandwidth, flat response curve, high output, small nonlinear distortion, and good transient response.

Preferably, the network transmission line 32 includes 8 wire cores wound in pairs. In this way, while ensuring data transmission, the network transmission line 32 is conveniently routed and has a compact structure.

Preferably, the sound amplifier system further includes a network cable sheath for wrapping the network transmission line 32 to reduce mutual interference between the power supply line 31 and the network transmission line 32 when there is a strong current.

Preferably, there are two power lines 31 , which are respectively connected to the positive pole and the negative pole of the DC power supply 14 .

Preferably, the cross-sectional area of the power cord 31 is 0.5 square millimeters. Compared with the traditional power cord 31, the wire diameter is thicker, which increases the current and increases the transmission power.

Preferably, the sound power amplifier system also includes an outer sheath for wrapping the power cord 31 and the network transmission line 32 into one, so as to facilitate the complete installation of the power cord 31 and the network transmission line 32, so that the connecting line Compact structure and convenient wiring.

The embodiment of the utility model also provides an audio system, including the above-mentioned audio amplifier system. The audio system has the same structural features and functions as the sound power amplifier system in the above-mentioned embodiments, so details will not be repeated here.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A sound amplifier system, used to expand the output power of audio signal, is characterized in that, comprises switchboard, power amplifier module and is used for electrically connecting described switchboard and described power amplifier module and the signal transmission of described switchboard to described Separate network cable for power amplifier module; The divided network cable includes a power cable for transmitting electricity and a network transmission cable for transmitting signals; The switch includes a DC power supply, a signal input interface for inputting signals, and at least one signal output interface group for outputting signals received from the signal input interface, and the signal output interface group includes A first power interface electrically connected to one end of the power line and a first network interface connected to the signal input interface and used to connect to one end of the network transmission line; The power amplifier module at least includes a signal receiving interface group for receiving the output signal of the switch, and the signal receiving interface group includes a second power interface for connecting the other end of the power line and a second power interface for connecting to the network The second network interface at the other end of the transmission line. 2. The sound amplifier system according to claim 1, characterized in that there are four signal output interface groups. 3. The sound amplifier system as claimed in claim 2, wherein there are 2 said DC power supplies, each of said DC power supplies has two electrical output terminals, and each said electrical output terminal is connected to one said DC power supply. Describe the first power interface. 4. The sound amplifier system according to claim 3, wherein the DC power supply is a 24V phantom power supply. 5. The sound amplifier system according to any one of claims 1 to 4, characterized in that, the network transmission line includes 8 wire cores wound in pairs. 6. The sound power amplifier system according to claim 5, characterized in that, the sound power amplifier system further comprises a network cable sheath for wrapping the network transmission line. 7. The sound amplifier system according to any one of claims 1 to 4, characterized in that there are two power cords. 8. The sound amplifier system according to claim 7, wherein the cross-sectional area of the power cord is 0.5 square millimeters. 9. The sound power amplifier system according to any one of claims 1 to 4, characterized in that, the sound power amplifier system further comprises an outer sheath for wrapping the power line and the network transmission line as a whole. 10. A sound system, characterized by comprising the sound amplifier system according to any one of claims 1 to 9.