CN201303419Y - Wireless megaphone - Google Patents

Abstract

The utility model provides a wireless megaphone, which is provided with a host and at least one auxiliary megaphone, wherein the host is provided with a microphone, a wireless receiver, a player, a cassette recorder, a sound source amplifying circuit and a loudspeaker, the sound source amplifying circuit is provided with a wireless transmitter, each auxiliary megaphone is provided with a wireless receiver for receiving a sound source transmitted by the wireless transmitter of the host, and the auxiliary megaphone is provided with a sound source amplifying circuit and a loudspeaker; therefore, the sound source is firstly transmitted to the wireless receiver of the host, the loudspeaker outputs sound through the sound source amplifying circuit, the auxiliary loud-speaker can be arranged at a plurality of different positions, the auxiliary loud-speaker receives the sound source transmitted by the wireless transmitter of the host through the wireless receiver, and the sound is output through the loudspeaker through the sound source amplifying circuit, so that the arrangement of the auxiliary loud-speaker can be increased and decreased according to the field size, and the defect of uneven sound volume of a single wireless loud-speaker is improved.

Description

wireless speaker

technical field

The utility model relates to a loudspeaker, in particular to a wireless loudspeaker.

Background technique

Generally, the existing wireless amplifier is mainly equipped with a wireless receiver in the body, and the sound source is transmitted by a wireless microphone, received by the wireless receiver in the body, and then output by the speaker. However, the existing wireless amplifier is a The setting of the transmitter corresponding to a receiver is limited by the receiving distance when it is used for indoor gatherings or teaching. If the distance between the transmitter and the receiver exceeds the receiving range, it will not be able to receive the sound source and effectively output the amplified sound. Come, that is, the lack of uneven volume, for example: people near the amplifier will feel the volume is too loud, while people farther away from the amplifier may have insufficient volume to hear clearly.

Therefore, in view of the existence of the above-mentioned deficiency in the existing wireless loudspeaker, the creator devoted himself to research and improvement, so he first created the utility model.

Contents of the invention

The main purpose of this utility model is to overcome the defects of the above-mentioned prior art, and provide a wireless amplifier that can increase or decrease the setting of auxiliary amplifiers according to the size of the venue, so as to improve the lack of uneven volume of a single wireless amplifier.

In order to achieve the above object, the technical solution adopted by the utility model is: a host is provided, and the host is provided with a microphone, a wireless receiver, a player, a cassette recorder, a sound source amplifier circuit and a loudspeaker; It is equipped with a wireless transmitter; it also includes at least one auxiliary amplifier, which is a device with amplifying function attached to the host, and each auxiliary amplifier is equipped with a wireless receiver, a sound source amplification circuit and a speaker.

The beneficial effect of the utility model is that it can increase or decrease the setting of the auxiliary loudspeaker according to the size of the venue, so as to improve the lack of uneven volume of a single wireless loudspeaker, and further improve the quality of meetings or teaching.

Description of drawings

Shown in Fig. 1 is the block diagram of the utility model device;

Figure 2 is a reference diagram of the utility model in use.

Explanation of reference signs: 1-host; 11-microphone; 12-wireless receiver; 13-player; 14-cassette recorder; 15-sound source amplifying circuit; Antenna; 2-Auxiliary loudspeaker; 21-Wireless receiver; 210-Antenna; 22-Sound source amplification circuit; 23-Speaker; A-Podium.

Detailed ways

The above-mentioned and other technical features and advantages of the present utility model will be described in more detail below in conjunction with the accompanying drawings.

First of all, please refer to shown in Figure 1, the utility model is mainly provided with a host 1 of a wireless amplifier and at least one auxiliary amplifier 2, wherein the host 1 is provided with a microphone 11, a wireless receiver 12, a player 13, and a cassette recorder. Sound machine 14, sound source amplifying circuit 15 and loudspeaker 16, in addition, sound source amplifying circuit 15 is provided with wireless transmitter 17 again, and wireless transmitter 17 is provided with antenna 170; , each auxiliary loudspeaker 2 is provided with a wireless receiver 21, a sound source amplification circuit 22 and a speaker 23, wherein the wireless receiver 21 is provided with a receiving antenna 210, which is for receiving the sound source transmitted by the antenna 170 of the wireless transmitter 17 of the host computer 1 .

When in use, please refer to Figures 1 and 2. The sound source is mainly input to the main unit 1 first, no matter the speaker uses the microphone 11 on the podium A to give a speech, or the player 13 or the cassette recorder 14 of the main unit 1 Provide the main sound source, the sound source is first transmitted to the wireless receiver 12 of the host 1 to receive, and then the sound source amplifier circuit 15 is output by the speaker 16. At this time, the host 1 can be synchronously used as a loudspeaker; It is necessary to set the auxiliary amplifiers 2 at several different positions, and make the wireless receiver 21 of each auxiliary amplifier 2 correspond to the wireless transmitter 17 set by the host computer 1, so that the sound source can pass through the wireless transmitter 17, antenna 170 is transmitted to the corresponding auxiliary loudspeaker 2, and then received by the antenna 210 of the wireless receiver 21. After being input into the auxiliary loudspeaker 2, the sound is output by the speaker 23 through the sound source amplification circuit 22.

In this way, the wireless transmitter 17 module of a host 1 transmits the sound source to the wireless receiver 21 module of the corresponding several auxiliary amplifiers 2, and then the sound source is amplified and then output by the speaker 23, so that the sound source can be set in different positions. The auxiliary amplifier 2 output can effectively improve the lack of uneven volume of the existing single wireless amplifier, thereby improving the quality of meetings or teaching.

Through the above description, it can be seen that the utility model has indeed achieved the expected purpose and effect, and it is the first among similar items. When the application requirements for a new model patent have been met, a patent application is filed according to law.

The above description is only illustrative of the present utility model, rather than restrictive. Those of ordinary skill in the art understand that many modifications and changes can be made without departing from the spirit and scope defined by the following appended claims. , or equivalent, but all will fall within the protection scope of the present utility model.

Claims (2)

1. radio loudspeaker, it is provided with a main frame, and described main frame is provided with microphone, wireless receiver, player, cassette recording playback machine, source of sound amplifying circuit and loudspeaker;

It is characterized in that: the source of sound amplifying circuit of described main frame is provided with wireless launcher again; Also comprise at least one attached sound amplifier, described attached sound amplifier is the sound amplification function equipment that is attached to described main frame, and described each attached sound amplifier is provided with wireless receiver, source of sound amplifying circuit and loudspeaker.

2. radio loudspeaker according to claim 1 is characterized in that the wireless launcher of described main frame is provided with antenna, and described wireless receiver is provided with reception antenna.

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