CN203352768U - Structure improved loudspeaker box - Google Patents
Structure improved loudspeaker box Download PDFInfo
- Publication number
- CN203352768U CN203352768U CN 201320381196 CN201320381196U CN203352768U CN 203352768 U CN203352768 U CN 203352768U CN 201320381196 CN201320381196 CN 201320381196 CN 201320381196 U CN201320381196 U CN 201320381196U CN 203352768 U CN203352768 U CN 203352768U
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- Prior art keywords
- casing
- box
- circuit board
- control circuit
- loudspeaker
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- Expired - Fee Related
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- 230000005236 sound signal Effects 0.000 claims abstract description 9
- 238000005728 strengthening Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002708 enhancing effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
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Abstract
The utility model discloses a structure improved loudspeaker box. The structure improved loudspeaker box comprises a first hollow box formed by a top cover, a base and side plates. A second box is fixedly arranged in the first box. A loudspeaker is embedded into the sidewall of the second box. The sidewall portion of the second box corresponding to the loudspeaker is provided with a passive plate for enhancing the sound effect. A sealed resonance sound cavity is formed between the loudspeaker and the passive plate. Control keys are arranged on the top cover. A control circuit board and a battery are arranged on the base. An audio signal interface is arranged on the control circuit board. The control keys, the battery and the audio signal interface are in electrical connection with the control circuit board separately. According to the utility model, the advantage of compact and reasonable structure can be realized, the back surface of the loudspeaker is provided with the passive plate for enhancing the bass effect, so a wide voice frequency range can be obtained, and particularly the advantage of good tone quality effect can be realized in middle and low voice frequencies, and the advantage of good stability can be realized.
Description
Technical field
The utility model relates to the technology for loudspeaker box field, especially relates to a kind of Improved-structure audio amplifier.
Background technology
Audio amplifier is audio signal to be transformed into after power amplifier is processed to the electric equipment of voice output, critical piece comprises casing and is arranged at the loud speaker in casing, existing portable loudspeaker box is subject to the restriction of volume, generally do not have woofer, thereby bass effect is bad.And audio amplifier is a cavity, high, medium and low frequency sound loud speaker is installed in this cavity, sound spreads out of from a face of this cavity, when speaker operation, the phase mutual interference in this cavity of high, medium and low frequency sound, form audio mixing, loudspeaker box structure is unreasonable, easily make casing produce vibration, pollute acoustic signals, cause quality distortion.
Summary of the invention
The deficiency existed for above-mentioned prior art, the purpose of this utility model will provide a kind of Improved-structure audio amplifier, this loudspeaker box structure compact and reasonable, the back side of loud speaker is provided with the passive plate of strengthening bass effect, can obtain wider audio frequency range, particularly in, the bass acoustical quality is better, good stability.
To achieve these goals, the technical scheme that the utility model adopts is:
A kind of Improved-structure audio amplifier, comprise that top cover, base and side plate enclose the first casing that covers formation hollow, be fixed with the second casing in the first casing, be embedded with loud speaker on the sidewall of the second casing, the sidewall of the corresponding described loud speaker of the second casing is provided with the passive plate of strengthening audio, forms airtight resonance sound chamber between loud speaker and passive plate; Described top cover is provided with the control button, and described base is provided with control circuit board and battery, and control circuit board is provided with audio signal interface, and control button, battery, audio signal interface are electrically connected to control circuit board respectively.
Wherein, described loud speaker is two and is vertical setting, and described passive plate is one.
Wherein, described control button comprises volume adjusting button and switch key, and volume adjusting button and switch key are rolling adjustable type button.
Wherein, described side plate comprises first half side plate and rear plate side plate, on the first half side plate, offers mesh.
Wherein, the lower surface of described base is provided with foot pad.
After adopting technique scheme, the advantage that compared to the prior art the utility model had is:
This audio amplifier comprises the first casing and the second casing, the first casing is played a supporting role, the second casing is the resonance casing that is provided with resonance sound chamber, the back side of the second casing upper speaker is provided with the passive plate of strengthening bass effect, form resonance sound chamber between loud speaker and passive plate, high frequency audio the past shell side of loud speaker is to spreading out of, the bass part can directly spread out of from the back cover direction after passive plate is strengthened, can avoid high, in, bass phase mutual interference in casing forms audio mixing, wider range of sound frequency, particularly in, the bass acoustical quality is better, good stability.And this loudspeaker box structure is firm, can effectively avoid casing to produce resonance and pollute acoustic signals, acoustic fidelity is higher.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Fig. 1 is perspective view of the present utility model.
The perspective view that Fig. 2 is another angle of the present utility model.
The structural representation that Fig. 3 is decomposing state of the present utility model.
In figure, 10: the first casings, 1: top cover, 1-1: volume adjusting button, 1-2: switch key, 2-1: first half side plate, 2-2: later half side plate, 3: base, 3-1: control circuit board, 3-2: battery, 4: the second casings, 4-1: loud speaker, 4-2: passive plate.
Embodiment
The following stated is only preferred embodiment of the present utility model, does not therefore limit protection range of the present utility model.
Embodiment, see shown in Fig. 1 to Fig. 3: a kind of Improved-structure audio amplifier, comprise top cover 1, base 3, first half side plate 2-1 and later half side plate 2-2 enclose and cover the first casing 10 that forms hollow, offer mesh on first half side plate 2-1, the lower surface of described base 3 is provided with foot pad, be fixed with the second casing 4 in the first casing 10, the first casing 10 and the second casing 4 are the column body of square-section, vertically be embedded with two loud speaker 4-1 on the sidewall of the second casing 4, the sidewall of the corresponding described loud speaker 4-1 of the second casing 4 is provided with a passive plate 4-2 who strengthens audio, form airtight resonance sound chamber between loud speaker 4-1 and passive plate 4-2, described top cover 1 is provided with volume adjusting button 1-1 and switch key 1-2, and volume adjusting button 1-1 and switch key 1-2 are rolling adjustable type button.Described base 3 is provided with control circuit board 3-1 and battery 3-2, control circuit board 3-1 is provided with audio signal interface, power interface and double-USB interface, controls button, battery 3-2, audio signal interface, power interface and double-USB interface and is electrically connected to control circuit board 3-1 respectively.
Pass through technique scheme, this audio amplifier comprises the first casing 10 and the second casing 4, the first casing 10 is played a supporting role, the second casing 4 is for being provided with the resonance casing in resonance sound chamber, the back side of the second casing 4 upper speaker 4-1 is provided with the passive plate 4-2 that strengthens bass effect, form resonance sound chamber between loud speaker 4-1 and passive plate 4-2, high frequency audio the past shell side of loud speaker 4-1 is to spreading out of, the bass part can directly spread out of from the back cover direction after passive plate 4-2 strengthens, can avoid high, in, bass phase mutual interference in casing forms audio mixing, wider range of sound frequency, particularly in, the bass acoustical quality is better, good stability.And this loudspeaker box structure is firm, can effectively avoid casing to produce resonance and pollute acoustic signals, acoustic fidelity is higher.
Claims (5)
1. an Improved-structure audio amplifier, it is characterized in that: comprise that top cover (1), base (3) and side plate enclose the first casing (10) that covers formation hollow, be fixed with the second casing (4) in the first casing (10), be embedded with loud speaker (4-1) on the sidewall of the second casing (4), the sidewall of the corresponding described loud speaker of the second casing (4) (4-1) is provided with the passive plate (4-2) of strengthening audio, forms airtight resonance sound chamber between loud speaker (4-1) and passive plate (4-2); Described top cover (1) is provided with the control button, described base (3) is provided with control circuit board (3-1) and battery (3-2), control circuit board (3-1) is provided with audio signal interface, and control button, battery (3-2), audio signal interface are electrically connected to control circuit board (3-1) respectively.
2. Improved-structure audio amplifier according to claim 1 is characterized in that: described loud speaker (4-1) is two and is vertical setting, and described passive plate (4-2) is one.
3. Improved-structure audio amplifier according to claim 1, it is characterized in that: described control button comprises volume adjusting button (1-1) and switch key (1-2), volume adjusting button (1-1) and switch key (1-2) are rolling adjustable type button.
4. Improved-structure audio amplifier according to claim 1, it is characterized in that: described side plate comprises first half side plate (2-1) and rear plate side plate (2-2), on first half side plate (2-1), offers mesh.
5. Improved-structure audio amplifier according to claim 1, it is characterized in that: the lower surface of described base (3) is provided with foot pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320381196 CN203352768U (en) | 2013-06-28 | 2013-06-28 | Structure improved loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320381196 CN203352768U (en) | 2013-06-28 | 2013-06-28 | Structure improved loudspeaker box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203352768U true CN203352768U (en) | 2013-12-18 |
Family
ID=49752612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320381196 Expired - Fee Related CN203352768U (en) | 2013-06-28 | 2013-06-28 | Structure improved loudspeaker box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203352768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106454621A (en) * | 2016-10-20 | 2017-02-22 | 广东欧珀移动通信有限公司 | Intelligent sound box |
-
2013
- 2013-06-28 CN CN 201320381196 patent/CN203352768U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106454621A (en) * | 2016-10-20 | 2017-02-22 | 广东欧珀移动通信有限公司 | Intelligent sound box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 14, 2023, the expiration and termination of 39 volumes and 2802 issues of the patent Number: 28-02 Volume: 39 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 |