A kind of novel wireless surround speaker
Technical field
The present invention relates to the audio amplifier technical field, be specifically related to a kind of novel wireless surround speaker.
Background technology
Audio amplifier is the terminal of whole sound system, and its effect is to convert the audio frequency electric energy to corresponding sonic energy, and is radiated the space to it.It is the extremely important part of sound system; Because it is being undertaken and is being transformed into acoustical signal to the signal of telecommunication and supplies people's ear directly to listen to so mission critical; It is wanted directly and people's the sense of hearing is come into contacts with; And people's the sense of hearing is very sensitive, and the tone color of complex sound is had very strong resolving ability.Because people's ear is estimated the fine or not most important standard of a sound system tonequality just to the subjective feeling of sound, therefore, can think that the performance height of audio amplifier is to play key effect to the playing quality of a sound system.
Be flooded with various audio amplifiers at present on the market, but all there is certain problem in most of speaker products, as: suitable environment is limited, and buying audio amplifier needs to select according to the space size; Function singleness only has a kind of mode of operation; Casing of loudspeaker box resonance is very serious, and shell itself will produce sound during audio amplifier work, thereby influences the effect of audio amplifier; The easy distortion of sound influences audio and tonequality; Be subject to disturb during audio amplifier work.
Summary of the invention
The purpose of this invention is to provide a kind of novel wireless surround speaker, it is the extension wall surround speaker with the active emission of 2.4G and reception, is applicable to multiple environment, and the design that the single-stage twin-stage freely switches effectively solves home theater 5.1 above system configuration.
In order to solve the existing problem of background technology; The present invention adopts following technical scheme: it comprises fore shell, sounding component, control element and back cover; Fore shell and the back cover housing that is composed of a fixed connection, and the housing front side is provided with sounding component, is provided with control element in the housing.
Described sounding component comprises bass unit, phase-reversing tube, middle pitch unit, voice unit; Phase-reversing tube is arranged on the upper surface of fore shell; Bass unit is arranged on fore shell middle part upside; The bass unit lower end is provided with voice unit, and the bilateral symmetry of fore shell is provided with the middle pitch unit, and voice unit 7 both sides are respectively arranged with code switch, power supply indicator and monopolar/bipolar change over switch.
Described control element comprises no signal and imports automatic power-down circuit, 2.4G wireless receiver, toroidal transformer, monopolar/bipolar frequency divider; No signal is imported automatic power-down circuit, the 2.4G wireless receiver is separately positioned on the bass unit both sides; The bass unit rear end is provided with toroidal transformer; Toroidal transformer one side is provided with the monopolar/bipolar frequency divider, and middle pitch unit, voice unit are fixedly connected with the fore shell inwall through middle pitch housing, voice unit fixed support respectively.
Described no signal is imported automatic power-down circuit, 2.4G wireless receiver, toroidal transformer, monopolar/bipolar frequency divider, sounding component and is interconnected; And the monopolar/bipolar frequency divider is connected with the monopolar/bipolar change over switch.
Described back cover rear end is provided with audio amplifier suspension member and power input is installed.
Described fore shell and back cover inwall are provided with the housing reinforcement, and the junction of fore shell and back cover is provided with the housing seal circle.
The present invention is equipped with the 2.4G wireless launcher; This wireless launcher comprises the input frequently of low electricity, the input frequently of high electricity, L channel, R channel, mains switch, reflector housing, reflector to code switch, transmitter power indicator light and 2.4G transmitter circuit system; The reflector enclosure interior is provided with 2.4G transmitter circuit system, and reflector housing outer wall is respectively arranged with the low electricity input frequently that is connected with 2.4G transmitter circuit system, the input frequently of high electricity, L channel, R channel, mains switch, reflector to code switch and transmitter power indicator light.
The present invention adopts the 2.4G global general-use to exempt to permit the ISAO frequency range.Adopt no Compression and Transmission technology, sample frequency 44.1kHz/16bits guarantees the high-quality reduction of frequency signal to the full extent.Support broadcast mode, reflector is corresponding a plurality of audio amplifier receiving terminals simultaneously, and the quantity of receiving terminal is unrestricted.Peculiar stand-by energy-saving pattern adopts audio signal control, when receiving the audio signal of reflector output; Wireless sound box is started working; Do not receive audio signal and surpass 5 minutes, audio amplifier gets into the stand-by energy-saving pattern automatically, and the energy saver mode power consumption is less than 0.5 watt; Be applicable to multiple environment, the design that the single-stage twin-stage freely switches effectively solves home theater 5.1 above system configuration.
Description of drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is the upward view of Fig. 2.
Fig. 4 is the vertical view of Fig. 2.
Fig. 5 is the right view of Fig. 2.
Fig. 6 is the left view of Fig. 2.
Fig. 7 is the rearview of Fig. 2.
Fig. 8 removes the cut-away view of fore shell for the present invention.
Fig. 9 removes the cut-away view of back cover for the present invention.
Figure 10 is the structural representation of 2.4G wireless launcher among the present invention.
Figure 11 is the circuit theory diagrams of monopolar/bipolar mode switch among the present invention.
Figure 12 is 2.4G wireless transmitter circuits systematic schematic diagram among the present invention.
Figure 13 is the circuit theory diagrams of 2.4G wireless receiver among the present invention.
Embodiment
Referring to figs. 1 through Figure 13; This embodiment adopts following technical scheme: it comprises fore shell 1, sounding component, control element and back cover 9; Fore shell 1 and back cover 9 housing that is composed of a fixed connection, and the housing front side is provided with sounding component, is provided with control element in the housing.
Described sounding component comprises bass unit 2, phase-reversing tube 3, middle pitch unit 4, voice unit 7; Phase-reversing tube 3 is arranged on the upper surface of fore shell 1; Bass unit 2 is arranged on fore shell 1 middle part upside; Bass unit 2 lower ends are provided with voice unit 7, and the bilateral symmetry of fore shell 1 is provided with middle pitch unit 4, and voice unit 7 both sides are respectively arranged with code switch 5, power supply indicator 6 and monopolar/bipolar change over switch 8.
Described control element comprises no signal and imports automatic power-down circuit 12,2.4G wireless receiver 13, toroidal transformer 15, monopolar/bipolar frequency divider 16; No signal is imported automatic power-down circuit 12,2.4G wireless receiver 13 is separately positioned on bass unit 2 both sides; Bass unit 2 rear ends are provided with toroidal transformer 15; Toroidal transformer 15 1 sides are provided with monopolar/bipolar frequency divider 16, and middle pitch unit 4, voice unit 7 are fixedly connected with fore shell 1 inwall through middle pitch housing 17, voice unit fixed support 19 respectively.
Described no signal is imported automatic power-down circuit 12,2.4G wireless receiver 13, toroidal transformer 15, monopolar/bipolar frequency divider 16, sounding component and is interconnected; And monopolar/bipolar frequency divider 16 is connected with monopolar/bipolar change over switch 8.
Described back cover 9 rear ends are provided with audio amplifier suspension member 10 and power input 11 are installed.
Described fore shell 1 is provided with housing reinforcement 14 with back cover 9 inwalls, and the junction of fore shell 1 and back cover 9 is provided with housing seal circle 18.
This embodiment is equipped with the 2.4G wireless launcher; This wireless launcher comprises that low electricity imports 20 frequently, high electricity imports 21 frequently, L channel 22, R channel 23, mains switch 24, reflector housing 25, reflector be to code switch 26, transmitter power indicator light 27 and 2.4G transmitter circuit system 28; Reflector housing 25 set inside have 2.4G transmitter circuit system 28, and reflector housing 25 outer walls are respectively arranged with that the low electricity that is connected with 2.4G transmitter circuit system 28 imports 20 frequently, high electricity imports 21 frequently, L channel 22, R channel 23, mains switch 24, reflector be to code switch 26 and transmitter power indicator light 27.
This embodiment adopts the 2.4G global general-use to exempt to permit the ISAO frequency range; Adopt no Compression and Transmission technology, sample frequency 44.1kHz/16bits guarantees the high-quality reduction of frequency signal to the full extent; Support broadcast mode, reflector is corresponding a plurality of audio amplifier receiving terminals simultaneously, and the quantity of receiving terminal is unrestricted; Peculiar stand-by energy-saving pattern adopts audio signal control, and when receiving the audio signal of reflector output, wireless sound box is started working, and does not receive audio signal and surpasses 5 minutes, and audio amplifier gets into the stand-by energy-saving pattern automatically, and the energy saver mode power consumption is less than 0.5 watt; Switchable dividing network adopts two cover dividing networks, and corresponding monopolar mode of difference and double pole mode are through switching between the change over switch implementation pattern.Under monopolar mode, has only the driver element sounding of front panel; Under double pole mode, preposition high pitch breaks off and connecting, both sides driver element vibration sounding, and the part-frequency point frequency of high bass unit reduces.Because phase place was different when the both sides driver element connected, in the inactive area that can produce certain angle perpendicular to the direction of wall, in this zone, sound field has scattering nature, and the hearer is difficult for discovering loudspeaker position, can hear more reflected sound; The low distortion design, whole system records 110Hz~20kHz frequency range total distortion less than 1% under the 90dB acoustic pressure.
Import 3 pin that R5, R17 are input to IC1 and IC2 respectively like Figure 12 sound intermediate frequency high level frequency signal by signal.Amplifying 5 pin that the back is added to IC1 and IC2 from 1 pin resistance R 6, R18 output and audio frequency small-signal input resistance R2, R14 through IC1 and IC2 amplifies back 7 pin and outputs to wireless 2.4G reflector and launch.
Receiving audio signal like the wireless 2.4G receiver of Figure 13 exports respectively: A: audio signal through C15 be input to high pass filter R27,3 pin that are input to amplifier IC3 export input 3 pin that 1 pin connects power amplifier, the 14 pin output of power amplifier connects frequency divider; The B:2.4G receiver receives audio signal conversion automatically controlled signal input transistor base control triode operating state and comes control relay work to break off and connection; Control the work of main power source; 5 minutes power amplifiers get into holding state when receiver does not receive audio signal; Standby energy consumption reaches energy-conserving and environment-protective less than 0.5 watt.
This embodiment is the extension wall surround speaker with the active emission of 2.4G and reception, is applicable to multiple environment, and the design that the single-stage twin-stage freely switches effectively solves home theater 5.1 above system configuration.