CN201008209Y - Solar energy active loudspeaker box - Google Patents
Solar energy active loudspeaker box Download PDFInfo
- Publication number
- CN201008209Y CN201008209Y CNU2007201186997U CN200720118699U CN201008209Y CN 201008209 Y CN201008209 Y CN 201008209Y CN U2007201186997 U CNU2007201186997 U CN U2007201186997U CN 200720118699 U CN200720118699 U CN 200720118699U CN 201008209 Y CN201008209 Y CN 201008209Y
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- CN
- China
- Prior art keywords
- power
- solar energy
- amplifier
- rechargeable battery
- energy active
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Amplifiers (AREA)
Abstract
A solar energy sound box with a source comprising a power amplifier circuit, a loudspeaker and a power circuit with a solar battery and an aeration battery, wherein the output of the power circuit is connected with the input of the power amplifier circuit, the audio output of the power amplifier circuit is connected with the loudspeaker. The power circuit includes a power port for accessing to the external power source, the external power source charges the aeration battery when the power port accesses to the external power source. The utility model is characterized in that the solar energy and the external power source can be utilized to charge the aeration battery, and the working energy also can be provided. The utilization of D type power amplifier not only has the advantages of low power consumption and high efficiency, but also has the advantages of prolonging the service life of the battery, reducing the volume of the circuit, and carrying the sound box conveniently.
Description
Technical field
The utility model relates to a kind of stereo set, especially a kind of solar energy active audio amplifier.
Background technology
Traditional active audio amplifier, power consumption is big, efficient is low, volume is big, heavy, inconvenience is carried, under the outdoor situation that does not have an externally fed, can't work long hours.The audio amplifier of some present outdoor solar energy simply is to utilize conversion of solar energy to become electric energy just, charges the battery, and still adopts traditional power amplifier, and power consumption is big, and built-in battery can not satisfy the consumer and work for a long time out of doors.Solar cell can only provide less charging current, and the charging interval is long.Only use rechargeable solar battery, be difficult to battery is full of; Owing to be not fully filled, how long do not work, and be easy to rechargeable battery is damaged, so this series products, do not consider actual practicality.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of solar energy active audio amplifier is provided, and carries out outdoor charging except utilizing solar energy, and it can also utilize external power supply to charge and work.
The further technical problem to be solved of the utility model is, a kind of solar energy active audio amplifier that can reduce volume and reduce power consumption is provided.
For solving above technical problem, the utility model adopts following technical scheme:
A kind of solar energy active audio amplifier, comprise power amplifier, loud speaker and contain solar cell and the power circuit of rechargeable battery, the output of described power circuit connects the power supply input of described power amplifier, the audio frequency output of described power amplifier connects loud speaker, it is characterized in that, described power circuit comprises the power interface that is used to insert external power source, and the external power source of access charges to described rechargeable battery.
Preferably, described power interface comprises a strobe unit, and described solar cell and external power source charge to described rechargeable battery in the mode of selecting a gating by this strobe unit.
Preferably, described strobe unit comprises a socket, is provided with a normally closed interlock in this socket; This normally closed interlock closure when attaching plug is extracted, described rechargeable battery connects described solar cell, and this normally closed interlock disconnected when attaching plug inserted, and described rechargeable battery connects external power source.
Further, described power interface also is connected to the power supply input of described power amplifier.
Can be at the charging current input serial connection diode of described rechargeable battery, its negative electrode connects the positive pole of described rechargeable battery.
Described rechargeable battery two ends can and connect filter capacitor.
Described filter capacitor can be two, and one is electrochemical capacitor, and another is a patch capacitor.
Can comprise decoupling capacitor, described decoupling capacitor one is terminated between described power circuit and the described power amplifier, its other end ground connection.
Described decoupling capacitor can be two, and one is electrochemical capacitor, and another is a patch capacitor.
Further, described power amplifier adopts the D class A amplifier A.
The beneficial effects of the utility model are:
Because the power circuit at audio amplifier has adopted the power interface that is used to insert external power source, not only can the rechargeable battery in the audio amplifier be charged the solar energy mode, also can charge by external power source.Further, external power source also can provide work energy to audio amplifier when connecting, and realizes the charging of playback limit, limit.
Owing to adopt the D class A amplifier A, make that the utility model solar energy active audio amplifier power consumption is lower, more power saving, and can reduce the volume of power amplifier, this audio amplifier is easy to carry.
Description of drawings
Fig. 1 is the perspective view of the utility model embodiment solar energy active audio amplifier.
Fig. 2 is the back panel schematic diagram of the utility model embodiment solar energy active audio amplifier.
Fig. 3 is the power circuit principle figure of the utility model embodiment solar energy active audio amplifier.
Fig. 4 is the power amplifier of the utility model embodiment solar energy active audio amplifier and the schematic diagram of speaker portion.
Embodiment
Also in conjunction with the accompanying drawings the utility model is further described below by embodiment.
The utility model embodiment sees also Fig. 1～Fig. 4.The concrete structure of present embodiment solar energy active audio amplifier as shown in Figure 1, sound box 1 top is equipped with solar cell 2, on the panel 1a of dead ahead loud speaker 3 is installed, rechargeable battery 4 and power amplifier 5 are equipped with in inside, the signaling interface of power amplifier is established at the back side, referring to Fig. 2, is provided with audio frequency input socket J2 on the back panel of audio amplifier, mains switch S1, supply socket J1.
The circuit theory of the utility model embodiment as shown in Figure 3, Figure 4, circuit mainly is made up of solar cell 2, rechargeable battery 4, power amplifier 5 and loud speaker 3, wherein power amplifier 5 is as D class audio frequency power discharging IC.Fig. 3 is a power circuit, and J1 is the POWERJACK supply socket, and supply socket J1 is built-in with normally closed interlock, and normally closed interlock is closed at ordinary times, and the branch road at solar cell 2 places is by gating at this moment, and solar cell 2 is connected with rechargeable battery 4; D1 is a Schottky diode among the figure, and when the voltage of solar cell 2 generations was higher than the voltage of rechargeable battery 4, diode D1 conducting was to rechargeable battery 4 chargings and power amplifier 5 power supplies.If the illumination deficiency, the voltage that solar cell 2 produces is lower, and D1 oppositely ends, and prevents that the electric current of rechargeable battery 4 from pouring in down a chimney to solar cell 2, and this moment, 5 of power amplifiers were by rechargeable battery 4 power supplies.Be constantly to change sunshine, so conversion of solar energy is an electric energy, the electric current of output and voltage are very unsettled, and by rechargeable battery 4 energy storage, exportable burning voltage and electric current allow power amplifier 5 steady operations.Rechargeable battery 4 two ends also and met power filtering capacitor C1, C2, wherein C1 adopts electrochemical capacitor, C2 adopts patch capacitor.When inserting dc power plug, the normally closed interlock of supply socket disconnects, and has disconnected the path of solar cell, is that power amplifier 5 power supplies and rechargeable battery 4 charge by the DC power supply of outside.DC power supply provides bigger supply current, and power amplifier 5 power consumptions are less, can not influence the charging of rechargeable battery 4 during work.Power amplifier 5 adopts D class audio frequency power discharging IC, and efficient reaches more than 85%, and its average efficiency is approximately high 2～3 times than class ab ammplifier, and the life-span of its battery can prolong 2～3 times.Among Fig. 4, capacitor C 5, C6 are decoupling capacitor, and wherein C5 adopts electrochemical capacitor, and C6 adopts patch capacitor, and capacitor C 5, C6 one are terminated between power circuit and the power amplifier 5, its other end ground connection.The audio signal of audio amplifier left and right acoustic channels is sent into from audio socket J2, by patch capacitor C3, C4 is input to D class audio frequency power discharging IC by power amplifier input INL and INR respectively, through after the power amplification, directly drive the speaker operation of left and right acoustic channels L, R by output OUTL and OUTR.The utility model embodiment is provided with a toggle switch S1 between power circuit and D class audio frequency power discharging IC, the control power circuit is connected with power amplifier 5.When not working, toggle switch S1 is in the position of OFF, disconnect the power supply of power amplifier, during use, this toggle switch S1 is pushed the position of ON, connect amplifier power supply, and the audio signal of MP3, MP4, CD, DVD etc. is linked into the audio input end of D class audio frequency power discharging IC, audio amplifier is promptly started working.The utility model adopts D class audio frequency power discharging IC, make on the one hand that circuit structure is simple, volume is little, in light weight, be convenient for carrying, it is low in energy consumption on the other hand, efficient is high, the battery long service life.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design; can also make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.
Claims (10)
1. solar energy active audio amplifier, comprise power amplifier (5), loud speaker (3) and contain solar cell (2) and the power circuit of rechargeable battery (4), the output of described power circuit connects the power supply input of described power amplifier (5), the audio frequency output of described power amplifier (5) connects loud speaker (3), it is characterized in that, described power circuit comprises the power interface that is used to insert external power source, and the external power source of access charges to described rechargeable battery (4).
2. solar energy active audio amplifier as claimed in claim 1 is characterized in that described power interface comprises a strobe unit, and described solar cell (2) charges to described rechargeable battery (4) in the mode of selecting a gating by this strobe unit with external power source.
3. solar energy active audio amplifier as claimed in claim 2 is characterized in that, described strobe unit is a socket that is provided with a normally closed interlock; This normally closed interlock closure when attaching plug is extracted, described rechargeable battery (4) connects described solar cell (2), and this normally closed interlock disconnected when attaching plug inserted, and described rechargeable battery (4) connects external power source.
4. as each described solar energy active audio amplifier in the claim 1～3, it is characterized in that described power interface also connects the power supply input of described power amplifier (5).
5. solar energy active audio amplifier as claimed in claim 4 is characterized in that, the charging current input of described rechargeable battery (4) has been connected in series diode (D1), and the negative electrode of this diode (D1) connects the positive pole of described rechargeable battery (4).
6. solar energy active audio amplifier as claimed in claim 4 is characterized in that, described rechargeable battery (4) two ends also are connected to filter capacitor.
7. solar energy active audio amplifier as claimed in claim 6 is characterized in that, described filtered electrical has two, and one is electrochemical capacitor, and another is a patch capacitor.
8. solar energy active audio amplifier as claimed in claim 4 is characterized in that, also comprises decoupling capacitor, and described decoupling capacitor one is terminated between described power circuit and the described power amplifier (5), its other end ground connection.
9. solar energy active audio amplifier as claimed in claim 8 is characterized in that, described decoupling capacitor has two, and one is electrochemical capacitor, and another is a patch capacitor.
10. solar energy active audio amplifier as claimed in claim 4 is characterized in that, described power amplifier (5) adopts the D class A amplifier A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201186997U CN201008209Y (en) | 2007-02-13 | 2007-02-13 | Solar energy active loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201186997U CN201008209Y (en) | 2007-02-13 | 2007-02-13 | Solar energy active loudspeaker box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201008209Y true CN201008209Y (en) | 2008-01-16 |
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ID=39004156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201186997U Expired - Lifetime CN201008209Y (en) | 2007-02-13 | 2007-02-13 | Solar energy active loudspeaker box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201008209Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938684A (en) * | 2010-09-17 | 2011-01-05 | 文创太阳能(福建)科技有限公司 | Movable solar energy loudspeaker box |
| CN101951542A (en) * | 2010-09-10 | 2011-01-19 | 文创太阳能(福建)科技有限公司 | Separable solar sound box |
| CN103841488A (en) * | 2012-11-12 | 2014-06-04 | 胜德国际研发股份有限公司 | Headset device |
| CN114296538A (en) * | 2021-12-07 | 2022-04-08 | 广东虹勤通讯技术有限公司 | Electronic equipment power amplifier power supply control circuit and electronic equipment |
-
2007
- 2007-02-13 CN CNU2007201186997U patent/CN201008209Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951542A (en) * | 2010-09-10 | 2011-01-19 | 文创太阳能(福建)科技有限公司 | Separable solar sound box |
| WO2012031429A1 (en) * | 2010-09-10 | 2012-03-15 | 文创太阳能(福建)科技有限公司 | Separable solar energy sound box |
| CN101938684A (en) * | 2010-09-17 | 2011-01-05 | 文创太阳能(福建)科技有限公司 | Movable solar energy loudspeaker box |
| CN103841488A (en) * | 2012-11-12 | 2014-06-04 | 胜德国际研发股份有限公司 | Headset device |
| CN114296538A (en) * | 2021-12-07 | 2022-04-08 | 广东虹勤通讯技术有限公司 | Electronic equipment power amplifier power supply control circuit and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN AND INTELLIGENT CONTROL AND THAILAND CO. Free format text: FORMER NAME OR ADDRESS: HEERTAI ELECTRONIC SCI-TECH CO., LTD. SHENZHEN |
|
| CP03 | Change of name, title or address |
Address after: D1002, building ten, building 518057, block D, Institute of international technology innovation, South ten road, Nanshan District, Guangdong, Shenzhen, China Patentee after: ShenZhen H&T Intelligent Control CO., LTD. Address before: D1002, building ten, building 518057, block D, Institute of international technology innovation, South ten road, Nanshan District, Guangdong, Shenzhen, China Patentee before: Heertai Electronic Sci. & Tech. Co., Ltd., Shenzhen City |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080116 |