Utility model content
In order to overcome described problem, this uses a kind of pull bar sound equipment with wireless charging function of new offer, passes through nothingLine charging module is charged, and charging inlet is not provided with shell body or without connecting line, avoiding may hair in outdoor exercisesIt is raw leak electricity, short-circuit security incident, there is good practicality and security.
Accordingly, the utility model discloses a kind of pull bar sound equipment with wireless charging function, including head unit, bottomPlate, rod assembly；
The head unit includes shell body, battery, high-frequency horn, intermediate frequency loudspeaker, Low frequency horn, power amplifierPlate, decoder, guidance panel, wireless charging receive box；
The high-frequency horn, intermediate frequency loudspeaker, Low frequency horn are sequentially arranged on the front panel of the head unit, respectively withPower amplifier circuit board connects；
The guidance panel is arranged on above the head unit on plate, and front is disposed with control button, is pressed in controlButton side, is provided with audio input interface；
The decoder is arranged on the panel inner wall of shell body side, and input is connected with the audio input interface, defeatedGo out end to be connected with the power amplifier circuit board；
The battery is fixed on the shell body lower inside, respectively with the power amplifier circuit board, decoder, operating surfacePlate connects；
The bottom plate is fixed on below the shell body, in bottom plate towards the head unit front panel side, is provided withTwo fixed supporting foots；In bottom plate towards the head unit rear board side, two pulleys are installed；
Rod assembly has fixture and pull bar, and fixture is fixed on the head unit rear board, middle part longitudinal direction clothThe chute being oriented to for pull bar is put, the pull bar longitudinally can pull out and withdraw along the chute；
The wireless charging receives box on the panel of the casing of sound equipment side, is internally provided with wireless charging and receives lineCircle, the wireless charging receive box output end and are connected with the battery.
The pull bar sound equipment also includes wireless charging base, and wireless charging base is built-in with wireless charging transmitting coil.
The wireless charging receiving coil and the wireless charging transmitting coil meet Qi standards.
When pull bar sound equipment is in charged state, the wireless charging base receives box with the wireless charging and is close to, instituteThe wireless charging transmitting coil distance parallel and mutual with the wireless charging receiving coil is stated less than or equal to 20 millisRice.
The audio input interface includes 3.5 millimeters of interfaces, 6.25 millimeters of interfaces, USB interfaces.
3.5 millimeters of interfaces, 6.25 millimeters of interfaces, waterproof plug is installed on USB interface.
A kind of pull bar sound equipment with wireless charging function, is carried out by way of wireless charging disclosed in the utility modelThe discharge and recharge of battery, outside are not provided with charging wire and charging inlet, because short circuit, electric leakage occur in the activity out of doors avoidedSecurity incident, there is good practicality and security.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried outClearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than wholeEmbodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is madeThe all other embodiment obtained, belong to the scope of the utility model protection.
Fig. 2, Fig. 3, Fig. 4 show the signal of the pull bar acoustic structure with wireless charging function of the utility model embodimentFigure.Illustrated with reference to Fig. 2, Fig. 3, Fig. 4, the utility model discloses a kind of pull bar sound equipment with wireless charging function, hasWireless charging function, including head unit, bottom plate, rod assembly；
The head unit includes shell body 109, battery 301, high-frequency horn 102, intermediate frequency loudspeaker 103, low frequency loudspeaker104, power amplifier circuit board 302, decoder 303, guidance panel 101, wireless charging receive box 108；
Fig. 5 shows the half section structure diagram of shell body.The shell body designs for rectangular box, band on front panelThere are three manholes for loudspeaker installation, respectively installation through-hole 1, installation through-hole 2 403, installation through-hole 3 405, onPanel is provided with the rectangular slot 401 for guidance panel installation, is provided with side panel and receives the recessed of box installation for wireless chargingGroove, rear board upper center inwardly have recess, stretched for pull bar, and the elongated slot being adapted to the rod assembly is provided with the middle part of lower end406。
The high-frequency horn 102, intermediate frequency loudspeaker 103, Low frequency horn 104 are sequentially arranged at before the shell body 109On plate, it is connected respectively with power amplifier circuit board 302；High-frequency horn 102 and the small volume of intermediate frequency loudspeaker 103, Low frequency horn 104 needLow-frequency sound is played, so all bigger than both remaining between its bore, magnet, voice coil loudspeaker voice coil, diaphragm oscillations amplitude is larger, therefore bodyProduct is larger.
In specific implementation, if Low frequency horn does not put into appropriate casing (dividing plate), its performance cannot play, lowSound playback is bad, and sound seems extremely thin, and distortion is big, and transient response is also poor.Loudspeaker is driven by diaphragm oscillationsAir and sounding, vibrating diaphragm have tow sides, in vibration, will produce that two sizes are identical, but the acoustic irradiation of opposite in phase goes outGo, because the wavelength of low-frequency sound wave is longer, the vibrating diaphragm back side occur bass sound wave can around the front of vibrating diaphragm, and with vibrating diaphragm frontThe bass sound wave of generation is offset, and " acoustic short circuit " phenomenon occurs.
In order to avoid occur " acoustic short circuit phenomenon ", the utility model inside the shell body 109, Low frequency horn 104Periphery, set dividing plate 304 to separate Low frequency horn, the grade sound-silencing measures of sound-absorbing sponge 305 are provided with dividing plate inwall, absorption is shakenThe sound wave that the film back side is sent, avoid that " acoustic short circuit " phenomenon occurs.
The guidance panel 101 is arranged on above the head unit on plate, and front is disposed with control button, is controllingButton side, is provided with audio input interface；Control button is used to be controlled the operations such as volume, switching song order,The audio input interface of the utility model embodiment includes 3.5 millimeters of interfaces, 6.25 millimeters of interfaces, USB interfaces；It is specific realShi Zhong, demand can also be inputted according to signal, set up remaining audio input interface.
Decoder is used for digital audio data stream decoded back into simulated audio signal, current most of electronic equipmentAudio output is data signal, after being only converted to analog signal, just can handle and play out in power amplifier.This useThe decoder 303 of new embodiment is arranged on the side panel inner wall of shell body 109, and input connects with the audio input interfaceConnect, output end is connected with the power amplifier circuit board 302.
The battery 301 is fixed on the shell body lower inside, respectively with the power amplifier circuit board 302, decoder303rd, guidance panel connection 101；
The bottom plate 107 is fixed on the lower section of the shell body 109, in bottom plate 107 towards the front panel one of shell body 109Side, it is provided with two fixed supporting foots 105；In bottom plate towards the shell body rear board side, two pulleys 106 are installed.
Rod assembly has fixture 202 and pull bar 203, and for the ease of grasping, the upper end of pull bar 203 is provided with handle201；Fixture 202 is fixed on the rear board of shell body 109, and middle part is longitudinally arranged the chute being oriented to for pull bar, the drawingBar 203 longitudinally can pull out and withdraw along the chute.In order to avoid pull bar protrudes the shell body, the utility model embodimentRod assembly integrally embedded in the shell body backboard recess in.The part position of the rod assembly is without departing from shell bodyThe back side.
When needing to move pull bar sound equipment, pull bar 203 is pulled out along the chute, tilts and pulls the pull bar sound equipment；Now, the support feet of pull bar sound equipment is not contacted with ground, and pull bar sound equipment will not be hindered to move；During static placement, pull bar sound equipmentSupport feet contacts with ground, prevents pull bar sound equipment from sliding.
The wireless charging receives box 108 on the panel of the casing of sound equipment side, is internally provided with wireless charging and connectsTake-up circle, the wireless charging receive box output end and are connected with the battery.
Receive what box matched with wireless charging, also including the pull bar sound equipment also includes wireless charging base 501, nothingLine charging base is built-in with wireless charging transmitting coil.
Most of wireless charging device is all to use Qi standard productions in the market, for versatility and in view of intoThis factor, this wireless charging receiving coil used using new embodiment and the wireless charging transmitting coil meet QiStandard.
In 1.2 versions of Qi standards, the effective charging distance of highest is 45 millimeters, it is contemplated that charge efficiency factor, outerThe slight barrier of shell and 1.1 standards of compatible legacy version, when pull bar sound equipment is in charged state, the wireless charging baseBox is received with the wireless charging to be close to, the wireless charging transmitting coil is parallel with the wireless charging receiving coil, and phaseIt is the distance between mutual to be less than or equal to 20 millimeters.
In order to ensure to support the input versatility of existing electronic equipment, the audio input interface include 3.5 millimeters of interfaces,6.25 millimeters of interfaces, USB interfaces, can cover most audio frequency apparatus.
In order to be further ensured that its outdoor water proofing property, 3.5 millimeters of interfaces, 6.25 millimeters of interfaces, pacify on USB interfaceEquipped with waterproof plug, for completely cutting off the entrance of steam, the fault rate of pull bar sound equipment is reduced, extends its service life.
Fig. 6 shows that this is connected using the connection between the pull bar sound part with wireless charging function of new embodimentWiring schematic diagram.Wireless charging base is that wireless charging receives box generation burning voltage, and battery is entered by electromagnetic inductionRow charging.The battery is powered to audio input interface, decoder, power amplifier circuit board.Audio signal is from audio inputInterface is passed to, and is decoded by decoder, is reduced to the analog signal that power amplifier circuit board can identify, is then transferred to power amplifier electricityRoad plate.Power amplifier circuit board converts the signal to electric signal according to signal frequency, is transmitted separately to high-frequency horn, intermediate frequency loudspeaker, lowFrequency loudspeaker, control its sounding.
Pull bar sound equipment provided by the utility model with wireless charging function, head unit be provided with cover it is high, medium and lowThe loudspeaker of frequency sound, there is preferable result of broadcast；It is more good with pull bar and roller, portability；Using wireless charging sideFormula is charged, and avoids security incident caused by short circuit and electric leakage occur in outdoor activities, has preferable security.
The flat-surface television with auxiliary heat dissipation shell provided above the utility model embodiment has carried out detailed JieContinue, specific case used herein is set forth to principle of the present utility model and embodiment, and above example is saidIt is bright to be only intended to help and understand method and its core concept of the present utility model；Meanwhile for those of ordinary skill in the art,According to thought of the present utility model, there will be changes in specific embodiments and applications, in summary, this explanationBook content should not be construed as to limitation of the present utility model.