CN206559580U

CN206559580U - Damping audio amplifier

Info

Publication number: CN206559580U
Application number: CN201720278855.XU
Authority: CN
Inventors: 聂众阳
Original assignee: Henan Jia Sound Electronics Co Ltd
Current assignee: Henan Jia Sound Electronics Co Ltd
Priority date: 2017-03-21
Filing date: 2017-03-21
Publication date: 2017-10-13
Anticipated expiration: 2027-03-21

Abstract

The utility model discloses a kind of damping audio amplifier；Audio treatment unit and loudspeaker including casing, in casing, in addition to buffering foam-rubber cushion and silica gel foot pad；Buffer foam-rubber cushion and be located at bottom half；Silica gel foot pad is located at buffering foam-rubber cushion bottom.The utility model is provided with buffering foam-rubber cushion and silica gel foot pad, when the high frequency seismic wave produced by loudspeaker is first once buffered through buffering foam-rubber cushion, secondary buffer is carried out by silica gel foot pad again, so, it is enabled to greatly reduce the impulsive force produced by placing table top of the present utility model, so that table top is also greatly reduced to the reaction force of the utility model in itself, then so that audio treatment unit inside the utility model etc. is difficult to release and damage because of impulsive force and reaction force, simultaneously, because impulsive force and reaction force can be greatly reduced, so that reducing the resonance between the utility model and table top, the acoustical quality of loudspeaker is improved, and then, the utility model using effect is good.

Description

Damping audio amplifier

Technical field

The utility model is related to technical field of electronic products, specifically, is related to a kind of damping audio amplifier.

Background technology

Audio is converted into acoustic energy by audio amplifier, as its name suggests, one kind, and it is radiated the playback equipment gone in space.

In existing life, there is the small intelligent audio amplifier of various styles, it is mainly to play music, so that pleasure body The heart.

However, active (bluetooth) audio amplifier of the prior art is when work, because speaker shakes the strong of generation Strong high frequency seismic wave can be broadcast to the table top for placing sound equipment by sound box and produce resonance, so will be to the member in casing Part, particularly electronic component produce impact so that electronic component is easily released and damaged, and will so greatly reduce sound The service life of case；And current solution is only merely to place lastblock EVA or silica type material in the bottom of audio amplifier The foot pad being made shakes the strong high frequency seismic wave produced to buffer loudspeaker, and still, such a solution really can not effectively prevent Impact of the strong high frequency seismic wave that only speaker vibrations are produced to casing interior element.

Thereby, prior art has much room for improvement.

Utility model content

A kind of damping audio amplifier that the purpose of this utility model is the deficiency for overcoming above-mentioned prior art and provided.

The utility model solves the technical scheme that is used of prior art problem：A kind of damping audio amplifier, including casing, set The audio treatment unit being placed in the casing and the loudspeaker being connected with the audio treatment unit, in addition to buffering sea Silk floss pad and silica gel foot pad；

Wherein, the buffering foam-rubber cushion passes through the viscous bottom located at the casing of viscose glue；The silica gel foot pad passes through viscose glue The viscous bottom located at the buffering foam-rubber cushion.

Above technical scheme is further elaborated below：

Preferably, in addition to the mask that amplifies, the mouth that amplifies is offered at the top of the casing, the mask that amplifies is covered on institute State the mouth that amplifies, the loudspeaker be installed on it is described amplify intraoral, and offseted patch with the inner top surface of the mask that amplifies.

Preferably, be formed as in the middle part of the outer top surface of the mask that amplifies outside disc, the outer top surface of the mask that amplifies Portion outwards uniformly offers multiple holes that amplify around the disc, and multiple holes that amplify are arranged in swirling.

Preferably, in addition to bottom, the bottom of the casing is formed as open, and the bottom is covered on described open outer； The buffering foam-rubber cushion is mutually fixed with the bottom by the viscous bottom located at the bottom of viscose glue and forms one.

Preferably, the upper surface of the bottom upwardly extends close to its outer and mutually fitted with the open internal diameter provided with an external diameter The collar matched somebody with somebody, the outer wall of the collar is uniformly provided with the card article that multiple thickness become larger from top to bottom along the longitudinal direction；

It is described open outer when the bottom is placed on, during so that the collar set is fixed in the casing, multiple cards Inwall of the bar respectively with the casing offsets.

Preferably, in addition to guard screen, the audio treatment unit is arranged on the bottom, the guard screen water The flat middle and lower part for being fixedly arranged on the casing, so as to which the audio treatment unit is separated with the loudspeaker.

Preferably, the bottom surface of the guard screen extends downward with the threaded post of multiple hollow structures, the bottom The bottom surface of lid offer it is multiple be through to its upper surface and the mounting hole that is correspondingly relatively fixed with multiple threaded post positions, A fastening bolt is installed with respectively in each fixed installation hole and the threaded post relative with its position, so that the bottom Lid is mutually fixed with the guard screen and forms one.

Preferably, projected upwards in the middle part of the upper surface of the guard screen and be formed with a flange A, the casing it is interior The middle part of wall is outstanding to be formed with a circle flange B；The side wall of the flange A and the flange B outer wall offset patch, described to prevent The peripheral bottom surface with the flange B for protecting the upper surface of dividing plate offsets.

Preferably, the audio treatment unit includes the power management panel being fixedly arranged on successively from bottom to up on the bottom And rechargeable battery；The power management panel is provided with MCU master controllers, USB charging inlets, charge protector, battery Low battery warning circuit, buzzer, receiver J-Horner, TF cards interface, power switch key, bluetooth module, audio frequency processing circuit and Power amplifier；

Wherein, the charge protector is connected between the USB charging inlets and the rechargeable battery, and described Charge protector is additionally coupled to the MCU master controllers；The battery low-electricity quantity warning circuit is connected to the chargeable electricity Between pond and the MCU master controllers；The buzzer, receiver J-Horner, TF cards interface, power switch key, bluetooth module and The audio frequency processing circuit is connected with the MCU master controllers respectively；The power amplifier is connected to the audio frequency processing circuit Between the loudspeaker；

The middle part correspondence at the middle part of the bottom, the middle part for buffering foam-rubber cushion and the silica gel foot pad offers a button Hole, the power switch key is revealed in the key hole；The lower end outer wall correspondence of the casing is offered so that the USB charges The jack that interface, receiver J-Horner and the TF cards interface appear.

The beneficial effects of the utility model are：

One, a kind of damping audio amplifier provided by the utility model, in the specific implementation, are provided with the buffering foam-rubber cushion And the silica gel foot pad, when the speaker operation, the high frequency seismic wave produced by it is first carried out through the buffering foam-rubber cushion Once buffer, then secondary buffer is carried out by the silica gel foot pad, in this way, causing it to placing table top institute of the present utility model The impulsive force of generation can be greatly reduced so that respective mesa is also greatly reduced to the reaction force of the utility model in itself, Then so that audio treatment unit inside the utility model etc. is difficult to release and damage because of impulsive force and reaction force, together When, because impulsive force and reaction force can be greatly reduced so that reduce the utility model with placing of the present utility model Resonance between face so that the acoustical quality when loudspeaker plays music can be effectively improved, and then, this practicality Bady is strong, and using effect is good.

Secondly, in the technical program, on the one hand, be formed as disc in the middle part of the outer top surface of the mask that amplifies, it is described The external rings of outer top surface of mask of amplifying outwards uniformly offer multiple holes that amplify around the disc, and multiple holes that amplify are in Swirling is arranged, in this way, causing the utility model to seem more novel fashion, color more attractive in appearance and more dazzling, separately On the one hand, the utility model also includes guard screen, and the audio treatment unit is arranged on the bottom, the guard screen The middle and lower part for being fixedly arranged on the casing of level, so as to the audio treatment unit be separated with the loudspeaker, in this way, set The guard screen put makes it possible to directly obstruct the impulsive force pair produced by the high frequency seismic wave that the loudspeaker is operationally sent The impact of the audio treatment unit etc. so that can further avoid releasing and damaging for the audio treatment unit etc., and then, Using effect of the present utility model can effectively improve.

Thirdly, in the present embodiment, on the one hand, it is described open outer when the bottom is placed on so that collar set is solid When in the casing, inwall of multiple card articles respectively with the casing offsets, in this way, causing the bottom stationarity Good, steadiness is good, and is fixed between the guard screen and the bottom by fastening bolt, in the side of the flange A The outer wall of wall and the flange B offsets, when peripheral and flange B bottom surface of the upper surface of the guard screen offsets, The guard screen enable by good spacing fixation so that will not be shifted in longitudinal direction, and then, the utility model is whole Body is good, is difficult to break into pieces, on the other hand, and the utility model carries rechargeable battery, battery low-electricity quantity warning circuit and buzzer, When the rechargeable battery electricity runs low, pass through the control of the battery low-electricity quantity warning circuit and the MCU master controllers System, the buzzer is that can export alarm, so as to remind user to be charged in time to the rechargeable battery, so that the utility model Use can be uninterrupted, and then, using effect of the present utility model can reach most preferably.

Brief description of the drawings

Fig. 1 is the front view of the utility model damping audio amplifier；

Fig. 2 is the overall structure diagram of the utility model damping audio amplifier；

Fig. 3 is the exploded view one of the utility model damping audio amplifier；

Fig. 4 is the exploded view two of the utility model damping audio amplifier；

Fig. 5 is the internal circuit block diagram of the utility model damping audio amplifier；

Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.

Drawing reference numeral：

Casing 10；

Flange B101；

Audio treatment unit 20；

Power management panel 201；MCU master controllers 2011；USB charging inlets 2012；Charge protector 2013；Battery Low battery warning circuit 2014；Buzzer 2015；Receiver J-Horner 2016；TF cards interface 2017；Power switch key 2018；Bluetooth Module 2019；Audio frequency processing circuit 2020；Power amplifier 2021；Rechargeable battery 202；

Loudspeaker 30；

Buffer foam-rubber cushion 40；

Silica gel foot pad 50；

Amplify mask 60；

Disc 601；Amplify hole 602；

Bottom 70；

Collar 701；Card article 702；Hole 703 is fixedly mounted；

Guard screen 80；

Threaded post 801；Flange A802.

Embodiment

The technical solution of the utility model is described in detail below with reference to drawings and the specific embodiments, to become apparent from, directly See ground and understand invention essence of the present utility model.

With reference to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5；

At a kind of damping audio amplifier provided by the utility model, including casing 10, the audio that is arranged in the casing 10 Reason unit 20 and the loudspeaker 30 that is connected with the audio treatment unit 20, the utility model also include buffering foam-rubber cushion 40 and Silica gel foot pad 50；

Wherein, the buffering foam-rubber cushion 40 passes through the viscous bottom located at the casing 10 of viscose glue；The silica gel foot pad 50 leads to Cross the viscous bottom located at the buffering foam-rubber cushion 40 of viscose glue.

Based on described above, it is clear that, a kind of damping audio amplifier provided by the utility model, in specific implementation When, it is provided with the buffering foam-rubber cushion 40 and the silica gel foot pad 50, when the loudspeaker 30 works, the high frequency produced by it Seismic wave is first once buffered through the buffering foam-rubber cushion 40, then carries out secondary buffer by the silica gel foot pad 50, in this way, It is enabled to greatly reduce the impulsive force produced by placing table top of the present utility model so that respective mesa is to this reality Also greatly reduced with the new reaction force of itself, then cause audio treatment unit 20 etc. inside the utility model be difficult because Impulsive force and reaction force and release and damage.

Meanwhile, because impulsive force and reaction force can be greatly reduced so that reduce the utility model with placing this reality With the resonance between new table top so that the acoustical quality when loudspeaker 30 plays music can be effectively improved.

And then, the utility model is practical, and using effect is good.

It is emphasized that in the specific implementation, the utility model also includes amplify mask 60, the top of the casing 10 Offer the mouth that amplifies, the mask 60 that amplifies is covered on the mouth that amplifies, the loudspeaker 30 be installed on it is described amplify it is intraoral, and Offseted patch with the inner top surface for amplifying mask 60.

Also, be formed as disc 601, the outer top surface of the mask 60 that amplifies in the middle part of the outer top surface of the mask 60 that amplifies External rings outwards uniformly offer multiple holes 602 that amplify around the disc 601, multiple holes 602 that amplify are in swirling Arrangement.

In this way, causing the utility model to seem more novel fashion, color more attractive in appearance and more dazzling.

It is preferred that, in the specific implementation, the week of the mouth that amplifies outwards is recessed along inwall to be formed with a concave station and (does not mark Show), the mask 60 that amplifies is arranged in the concave station (not indicating), so that its outer top surface is flush with the mouth that amplifies.

It should be noted that in the present embodiment, the utility model also includes bottom 70, and the bottom of the casing 10 is formed For opening, the bottom 70 is covered on described open outer；The buffering foam-rubber cushion 40 is glued located at the bottom 70 by viscose glue Bottom, mutually fixes with the bottom 70 and forms one.

Also, in the technical program, the upper surface of the bottom 70 close to its outer upwardly extend provided with an external diameter with The collar 701 that the open internal diameter is adapted, the outer wall of the collar 701 is uniformly provided with multiple thickness certainly along the longitudinal direction The card article 702 become larger under above；

It is described open outer when the bottom 70 is placed on, it is multiple during so that 701 sets of the collar is fixed in the casing 10 Inwall of the card article 702 respectively with the casing 10 offsets.

In this way, make it that the stationarity of bottom 70 is good, steadiness is good, is difficult to release.

Meanwhile, in the technical program, the utility model also includes guard screen 80, and the audio treatment unit 20 is set In on the bottom 70, the middle and lower part for being fixedly arranged on the casing 10 of the level of guard screen 80, so that by the audio Reason unit 20 is separated with the loudspeaker 30.

It is preferred that, the bottom surface of the guard screen 80 extends downward with the threaded post 801 of multiple hollow structures, institute The bottom surface for stating bottom 70 offers and multiple are through to its upper surface and correspondingly relative with multiple positions of threaded post 801 consolidate Determine mounting hole 703, one is installed with respectively in each fixed installation hole 703 and the threaded post 801 relative with its position Fastening bolt (not shown), so that the bottom 70 is mutually fixed with the guard screen 80 forms one.

And projected upwards in the middle part of the upper surface of the guard screen 80 and be formed with a flange A802, the casing 10 it is interior The middle part of wall is outstanding to be formed with a circle flange B101；The outer wall of the side wall of the flange A802 and the flange B101 offsets Patch, the peripheral bottom surface with the flange B101 of the upper surface of the guard screen 80 offsets.

So, on the one hand, set guard screen 80 makes it possible to directly to obstruct the loudspeaker 30 and operationally sent out Impact of the impulsive force to the grade of audio treatment unit 20 produced by the high frequency seismic wave gone out so that can further avoid the sound Frequency processing unit 20 grade releasing and damaging.

On the other hand, the bottom 70 is stationarity is good and while good steadiness, because of the guard screen 8080 and institute State and fixed by fastening bolt (not shown) between bottom 70, the flange A802 side wall with the flange B101's Outer wall offsets, when peripheral and flange B101 bottom surface of the upper surface of the guard screen 80 offsets, that is, causes described Guard screen 80 can be by good spacing fixation so that it will not be shifted in longitudinal direction.

And then, the utility model good integrity is difficult to break into pieces, and using effect of the present utility model can effectively improve.

Preferably, in the technical program, the audio treatment unit 20 includes being fixedly arranged on the bottom successively from bottom to up Power management panel 201 and rechargeable battery 202 on lid 70；The power management panel 201 is provided with MCU master controllers 2011st, USB charging inlets 2012, charge protector 2013, battery low-electricity quantity warning circuit 2014, buzzer 2015, earphone Socket 2016, TF cards interface 2017, power switch key 2018, bluetooth module 2019, audio frequency processing circuit 2020 and power amplifier electricity Road 2021；

Wherein, the charge protector 2013 is connected to the USB charging inlets 2012 and the rechargeable battery 202 Between, and the charge protector 2013 is additionally coupled to the MCU master controllers 2011；The battery low-electricity quantity warning circuit 2014 are connected between the rechargeable battery 202 and the MCU master controllers 2011；The buzzer 2015, receiver J-Horner 2016th, TF cards interface 2017, power switch key 2018, bluetooth module 2019 and the audio frequency processing circuit 2020 respectively with institute MCU master controllers 2011 are stated to be connected；The power amplifier 2021 is connected to the audio frequency processing circuit 2020 and the loudspeaker Between 30；

The middle part correspondence at the middle part of the bottom 70, the middle part for buffering foam-rubber cushion 40 and the silica gel foot pad 50 offers one Key hole (is not indicated), and the power switch key 2018 is revealed in the key hole (not indicating)；Outside the lower end of the casing 10 Wall correspondence offer so that the USB charging inlets 2012, receiver J-Horner 2016 and the TF cards interface 2017 appear insert Hole (is not indicated).

In this way, the utility model carries rechargeable battery 202, battery low-electricity quantity warning circuit 2014 and buzzer 2015, When the electricity of rechargeable battery 202 runs low, pass through the battery low-electricity quantity warning circuit 2014 and the MCU main controls The control of device 2011, the buzzer 2015 can export alarm, so as to remind user in time to the rechargeable battery 202 Charging, so that of the present utility model use can be uninterrupted.

Also, the utility model carries TF cards interface 2017 so that grafting TF cards can be easy to and to play related TF The music stored in card so that practicality is stronger；The utility model can also bluetooth connection user mobile phone so that play user's hand Music in machine；The utility model carries receiver J-Horner 2016 so that is easy to grafting earphone and enjoys listen music alone.

And the power switch key 2018 is concealed and (do not indicate) place in the respective keys hole of the bottom surface of the bottom 70, make Obtain the overall more preferably brief air of the utility model.

You need to add is that, in the specific implementation, the bottom of the silica gel foot pad 50 is additionally provided with a sucker (not shown), then When the utility model to be adsorbed to the table top of placement needed for being fixed on by the sucker (not shown), that is, the utility model is put Put steadiness more preferably and be difficult to be overturned.

Other embodiment etc., is illustrated one by one here, not doing.

In summary, a kind of damping audio amplifier provided by the utility model, in the specific implementation, is provided with the buffering sea Continuous pad 40 and the silica gel foot pad 50, when the loudspeaker 30 works, the high frequency seismic wave produced by it first passes through the buffering Foam-rubber cushion 40 is once buffered, then carries out secondary buffer by the silica gel foot pad 50, in this way, causing it to placing this reality It can be greatly reduced with the impulsive force produced by new table top so that reaction of the respective mesa to the utility model in itself Power is also greatly reduced, and then the audio treatment unit 20 inside the utility model etc. is difficult because of impulsive force and reaction force Release and damage, meanwhile, because impulsive force and reaction force can be greatly reduced so that reduce the utility model with placing this Resonance between the table top of utility model so that the acoustical quality when loudspeaker 30 plays music can be carried effectively Height, and then, the utility model is practical, and using effect is good.

In addition, in the technical program, on the one hand, be formed as disc 601 in the middle part of the outer top surface of the mask 60 that amplifies, The external rings of the outer top surface of the mask 60 that amplifies outwards uniformly offer multiple holes 602 that amplify around the disc 601, multiple The hole 602 that amplifies is arranged in swirling, in this way, causing the utility model to seem more novel fashion, color more attractive in appearance Color and more dazzling, on the other hand, the utility model also includes guard screen, and the audio treatment unit 20 is arranged at the bottom On lid 70, the middle and lower part for being fixedly arranged on the casing 10 of the guard screen level so that by the audio treatment unit 20 with The loudspeaker 30 is separated, in this way, set guard screen is to make it possible to directly to obstruct the loudspeaker 30 operationally to send out Impact of the impulsive force to the grade of audio treatment unit 20 produced by the high frequency seismic wave gone out so that can further avoid the sound Frequency processing unit 20 grade releasing and damaging, and then, using effect of the present utility model can effectively improve.

Again, in the present embodiment, on the one hand, described open outer when the bottom 70 is placed on, so that the collar 701 When set is fixed in the casing 10, inwall of multiple card articles 702 respectively with the casing 10 offsets, in this way, causing institute State that the stationarity of bottom 70 is good, steadiness is good, and is fixed between the guard screen and the bottom 70 by fastening bolt, Offseted in the outer wall of the side wall and the flange B101 of the flange A802, the upper surface of the guard screen it is peripheral with it is described When flange B101 bottom surface offsets, that is, enable the guard screen by good spacing fixation so that will not be in longitudinal side To displacement, and then, the utility model good integrity is difficult to break into pieces, on the other hand, the utility model carry rechargeable battery 202, Battery low-electricity quantity warning circuit 2014 and buzzer 2015, when the electricity of rechargeable battery 202 runs low, pass through the electricity The control of pond low battery warning circuit 2014 and the MCU master controllers 2011, the buzzer 2015 can export alarm, with Prompting user is set to be charged in time to the rechargeable battery 202, so that of the present utility model use can be uninterrupted, and then, this reality It can be reached most preferably with new using effect.

Accordingly, overall structure of the present utility model is simple, easily implements, easy to operate, practical, and specificity is strong, in knot In the improvement of structure and the improvement of technology, it need not increase too many cost so that the utility model necessarily has good city Field promotional value, the utility model can be very welcome, can effectively be popularized.

Preferred embodiment of the present utility model is the foregoing is only, patent protection model of the present utility model is not thereby limited Enclose, equivalent structure or the conversion of equivalent process that every utilization the utility model specification and accompanying drawing content are made, or directly or Other related technical fields are used in indirectly, are similarly included in scope of patent protection of the present utility model.

Claims

1. a kind of damping audio amplifier, including casing, the audio treatment unit that is arranged in the casing and with the audio frequency process list The loudspeaker that member is connected, it is characterised in that：Also include buffering foam-rubber cushion and silica gel foot pad；

Wherein, the buffering foam-rubber cushion passes through the viscous bottom located at the casing of viscose glue；The silica gel foot pad is set by the way that viscose glue is viscous In the bottom of the buffering foam-rubber cushion.

2. damping audio amplifier according to claim 1, it is characterised in that：Also include opening at the top of the mask that amplifies, the casing Provided with the mouth that amplifies, the mask that amplifies is covered on the mouth that amplifies, the loudspeaker be installed on it is described amplify it is intraoral, and with it is described The inner top surface of mask of amplifying offsets patch.

3. damping audio amplifier according to claim 2, it is characterised in that：Be formed as in the middle part of the outer top surface of the mask that amplifies Disc, the external rings of the outer top surface of the mask that amplifies outwards uniformly offer multiple holes that amplify, Duo Gesuo around the disc The hole that amplifies is stated to arrange in swirling.

4. damping audio amplifier according to claim 1, it is characterised in that：Also include bottom, the bottom of the casing is formed as Opening, the bottom is covered on described open outer；The buffering foam-rubber cushion is by the viscous bottom located at the bottom of viscose glue, with institute State bottom mutually fixed formation one.

5. damping audio amplifier according to claim 4, it is characterised in that：Prolong upwards close to its outer the upper surface of the bottom Stretch the collar being adapted with the open internal diameter provided with an external diameter, the outer wall of the collar is uniformly provided with many along the longitudinal direction The card article that individual thickness becomes larger from top to bottom；

It is described open outer when the bottom is placed on, during so that the collar set is fixed in the casing, multiple card articles point Inwall not with the casing offsets.

6. damping audio amplifier according to claim 5, it is characterised in that：Also include guard screen, the audio treatment unit It is arranged on the bottom, the middle and lower part for being fixedly arranged on the casing of the guard screen level, so that by the audio frequency process Unit is separated with the loudspeaker.

7. damping audio amplifier according to claim 6, it is characterised in that：The bottom surface of the guard screen extends downwardly setting Have a threaded post of multiple hollow structures, the bottom surface of the bottom offer it is multiple be through to its upper surface and correspondingly with multiple institutes State threaded post position to be relatively fixed mounting hole, in each fixed installation hole and the threaded post relative with its position point A fastening bolt is not installed with, so that the bottom is mutually fixed with the guard screen forms one.

8. damping audio amplifier according to claim 7, it is characterised in that：Dash forward upwards at the middle part of the upper surface of the guard screen Go out to be formed with a flange A, the middle part of the inwall of the casing is outstanding to be formed with a circle flange B；The side wall of the flange A with The outer wall of the flange B offsets patch, and the peripheral bottom surface with the flange B of the upper surface of the guard screen offsets.

9. damping audio amplifier according to claim 8, it is characterised in that：The audio treatment unit is included from bottom to up successively It is fixedly arranged on power management panel and rechargeable battery on the bottom；The power management panel provided with MCU master controllers, USB charging inlets, charge protector, battery low-electricity quantity warning circuit, buzzer, receiver J-Horner, TF cards interface, power supply are opened Key, bluetooth module, audio frequency processing circuit and power amplifier；

Wherein, the charge protector is connected between the USB charging inlets and the rechargeable battery, and the charging Protection circuit is additionally coupled to the MCU master controllers；The battery low-electricity quantity warning circuit be connected to the rechargeable battery with Between the MCU master controllers；The buzzer, receiver J-Horner, TF cards interface, power switch key, bluetooth module and described Audio frequency processing circuit is connected with the MCU master controllers respectively；The power amplifier is connected to the audio frequency processing circuit and institute State between loudspeaker；

The middle part correspondence at the middle part of the bottom, the middle part for buffering foam-rubber cushion and the silica gel foot pad offers a key hole, institute State power switch key and be revealed in the key hole；The casing lower end outer wall correspondence offer so that the USB charging inlets, The jack that receiver J-Horner and the TF cards interface appear.