CN202652453U - Flat sound box - Google Patents
Flat sound box Download PDFInfo
- Publication number
- CN202652453U CN202652453U CN 201220150999 CN201220150999U CN202652453U CN 202652453 U CN202652453 U CN 202652453U CN 201220150999 CN201220150999 CN 201220150999 CN 201220150999 U CN201220150999 U CN 201220150999U CN 202652453 U CN202652453 U CN 202652453U
- Authority
- CN
- China
- Prior art keywords
- frequency
- loudspeaker
- sound box
- passive radiator
- audio amplifier
- Prior art date
- 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 - Fee Related
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- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The utility model discloses a flat sound box, comprising a case with a flat structure and a full-frequency loudspeaker at one side of a long edge of the case. A recessed area is formed on an upper surface of the case in an inwardly-recessed manner. A passive radiator is fixedly disposed at the center of the recessed area. The flat sound box of the utility model is designed in a flat mode, achieving a decrease in thickness thereof. Meanwhile, the narrow full-frequency loudspeaker is adopted as a driving unit. On one hand, the narrow loudspeaker can satisfy the requirement of limiting the width dimension of the sound box; on the other hand, the full-frequency loudspeaker integrates low frequency, medium frequency and high frequency, thereby reducing the types and the number of loudspeakers, eliminating the frequency-dividing network and saving the cost. In addition, the added passive radiator makes full use of the space to expand the low-frequency replaying frequency range of the sound box, guaranteeing the performance and the acoustic fidelity of the loudspeaker.
Description
Technical field
The utility model relates to the loud speaker field, particularly a kind of platypelloid type audio amplifier.
Background technology
Television display screen upgrades to LED by CRT, LCD at present, and television screen is more and more thinner.The thin condition of television screen has been arranged, and it is very thin that the profile of television set just can be done.The built-in speaker of LED television set all is strips basically, and height, the width dimensions of audio amplifier are all little, so that the volume of audio amplifier is very little, this just produces following adverse consequences:
1, the playback of sound low frequency has inseparable contacting with the volume of audio amplifier, and the audio amplifier volume is larger, and the frequency of playback is lower, otherwise the frequency of playback raises.
2, because narrow space is not arranged the leeway of acoustics low-frequency compensation structure, also so that low frequency playback frequency is difficult for reduction.
3, the scheme of existing solution low frequency playback is, increase by one group of system that is specifically designed to replaying bass: power amplifier adds bass box, but these all produce the significant lifting on the cost.
Summary of the invention
Technical problem to be solved in the utility model is the shortcoming that overcomes prior art, and the pancake audio amplifier of the low frequency radiation-efficiency of a kind of space that can take full advantage of the television screen back and Effective Raise audio amplifier is provided.
The technical scheme that the utility model adopts is:
A kind of pancake audio amplifier comprises the housing of flat structure, is arranged on the full frequency speaker of the long limit of housing one side, is formed with a depressed area at the upper surface of described housing with caving inward, is fixedly installed passive radiator in center, described depressed area.
Preferably, be provided with at least one described full frequency speaker at described housing side.
Preferably, described passive radiator is the track type vibrating diaphragm that is fixedly installed in the housing depressed area.
Preferably, described passive radiator is for being fixedly installed on one or two circular membrane in the housing depressed area.
Flat design of the present utility model, reduce its thickness, adopt simultaneously narrow shape full frequency speaker as driver element, narrow shape loud speaker can satisfy the requirement of audio amplifier width dimension limitations on the one hand, low, the medium-high frequency of full frequency speaker is taken into account on the other hand, can reduce loud speaker kind and quantity, save dividing network, reduce cost.And the passive radiator of setting up can take full advantage of the space, makes audio amplifier expansion low-frequency playback frequency range, to guarantee performance and the tonequality of loud speaker.
Description of drawings
Figure 1 shows that pancake loudspeaker box structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
As shown in Figure 1, pancake audio amplifier of the present utility model comprises the housing 1 of flat structure, be arranged on the full frequency speaker 2 of two intervals settings of long limit one side, and be fixedly installed on passive radiator 3 on the housing, wherein, described housing is made by plastic material, and it consists of the overall appearance of audio amplifier and provides to the internal loudspeaker structure makes and shake cavity.
Two described full frequency speakers are disposed on the flat structure housing side, and it comprises track type vibrating diaphragm and inner magnet driven unit, and itself and prior art do not repeat them here its structure together.
Upper surface at described housing is formed with a rectangular depression district 4 with caving inward, is fixedly installed passive radiator 3 in 4 centers, described rectangular depression district, and described passive radiator is the track type vibrating diaphragm that is fixedly installed in the housing depressed area.Specifically, be to offer the track type through hole in the center in rectangular depression district, with track type vibrating diaphragm coupling be fixedly connected on through hole, housing depressed area, namely full frequency speaker, housing, track type vibrating diaphragm are common consists of a relatively airtight cavity.
When full frequency speaker shook, the burden that it can be produced bass by air vibrations transmission in the cavity was married again on the passive radiator, and this moment, the track type vibrating diaphragm can carry out larger linear oscillator, made LF-response point extend lowlyer.And passive radiator is arranged in the depressed area, giving passive radiator shakes the space fully, and preventing that itself and miscellaneous part from interfering affects tonequality.
The pancake audio amplifier is made in the space that design of the present utility model makes audio amplifier take full advantage of the screen back, make audio amplifier size on length, short transverse larger, so the volume of audio amplifier is larger relatively, can effectively reduce the playback frequency, audio amplifier size long, high both direction is larger in addition, the passive radiator of enough spatial placements is arranged so that bass is compensated on this face.Namely adopt narrow shape full frequency speaker as driver element, on the one hand narrow shape loud speaker can satisfy the requirement of audio amplifier width dimension limitations, and low, the medium-high frequency of full frequency speaker is taken into account on the other hand, can reduce loud speaker kind and quantity, saves dividing network, reduces cost.And the passive radiator of setting up can take full advantage of the space, makes audio amplifier expansion low-frequency playback frequency range, to guarantee performance and the tonequality of loud speaker.
It is to be noted, above-described embodiment only is to carry out exemplary illustrated as an example of the track type vibrating diaphragm example, described passive radiator also can adopt the vibrating diaphragm of one or two circular membrane or other shapes, size, its set-up mode and above-described embodiment with, just do not giving unnecessary details at this.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. pancake audio amplifier, it is characterized in that: the housing that comprises flat structure, be arranged on the full frequency speaker of the long limit of housing one side, be formed with a depressed area at the upper surface of described housing with caving inward, be fixedly installed passive radiator in center, described depressed area.
2. pancake audio amplifier as claimed in claim 1 is characterized in that: be provided with at least one described full frequency speaker at described housing side.
3. pancake audio amplifier as claimed in claim 1 or 2, it is characterized in that: described passive radiator is the track type vibrating diaphragm that is fixedly installed in the housing depressed area.
4. pancake audio amplifier as claimed in claim 1 or 2, it is characterized in that: described passive radiator is for being fixedly installed on one or two circular membrane in the housing depressed area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220150999 CN202652453U (en) | 2012-04-11 | 2012-04-11 | Flat sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220150999 CN202652453U (en) | 2012-04-11 | 2012-04-11 | Flat sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202652453U true CN202652453U (en) | 2013-01-02 |
Family
ID=47421473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220150999 Expired - Fee Related CN202652453U (en) | 2012-04-11 | 2012-04-11 | Flat sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202652453U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104202707A (en) * | 2014-09-18 | 2014-12-10 | 南通同洲电子有限责任公司 | Audio device capable of producing surround stereophonic sound |
| CN104883635A (en) * | 2014-02-28 | 2015-09-02 | 宁波升亚电子有限公司 | Near-head type loudspeaker device and application thereof |
| CN105282467A (en) * | 2014-07-22 | 2016-01-27 | 深圳纽斯声学***有限公司 | TV set with built-in double-diaphragm resonant sound boxes |
| US20220248127A1 (en) * | 2019-06-27 | 2022-08-04 | Goertek Inc. | Acoustic device and electronic equipment |
-
2012
- 2012-04-11 CN CN 201220150999 patent/CN202652453U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104883635A (en) * | 2014-02-28 | 2015-09-02 | 宁波升亚电子有限公司 | Near-head type loudspeaker device and application thereof |
| CN105282467A (en) * | 2014-07-22 | 2016-01-27 | 深圳纽斯声学***有限公司 | TV set with built-in double-diaphragm resonant sound boxes |
| CN104202707A (en) * | 2014-09-18 | 2014-12-10 | 南通同洲电子有限责任公司 | Audio device capable of producing surround stereophonic sound |
| US20220248127A1 (en) * | 2019-06-27 | 2022-08-04 | Goertek Inc. | Acoustic device and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150411 |
|
| EXPY | Termination of patent right or utility model |