CN204859513U - Ultra -thin audio amplifier - Google Patents
Ultra -thin audio amplifier Download PDFInfo
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- CN204859513U CN204859513U CN201520503710.6U CN201520503710U CN204859513U CN 204859513 U CN204859513 U CN 204859513U CN 201520503710 U CN201520503710 U CN 201520503710U CN 204859513 U CN204859513 U CN 204859513U
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- woofer
- audio amplifier
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Abstract
The utility model relates to an ultra -thin audio amplifier, include audio amplifier front and back panel, high pitch loudspeaker, woofer, woofer support, passive radiation, by panel, woofer, woofer support, passive radiation formation audio amplifier cavity around the audio amplifier, the magnetite of woofer is placed in outside the audio amplifier cavity. The woofer support back of the body covers there is airtight damping layer. Airtight damping layer is including but not limited to low foaming EVA layer, rubber layer, viscose layer. The utility model discloses it has following advantage and beneficial effect to compare prior art: the utility model discloses the magnetite that utilizes the woofer exposes outside the audio amplifier cavity, effectively reduce the audio amplifier thickness, improve audio amplifier space utilization to effectively increase the power of woofer, improve the loudness (acoustic pressure level SPL) of audio amplifier, the utility model discloses cover airtight damping layer at the woofer support back of the body, it is airtight effectual, effectively reduce the sound loss that causes because of gas leakage, the utility model discloses simple structure, the facilitate promotion is realized.
Description
Technical field
The utility model relates to technology for loudspeaker box field, is specifically related to a kind of Ultrathin speaker.
Background technology
Along with the development of science and technology, portable blue-tooth audio amplifier is because it is convenient for carrying, and multiple functional feature and become a kind of product all the fashion in social life gradually, and As time goes on also in continuous development.As portable speaker products, because need practicality be met, require that audio amplifier volume is little, and enough power stages (high sound press) must be had, and low frequency behavior outstanding (passive radiator excursion is large).Like this, just must use the typhon monomer of high power, large stroke, loudspeaker are often very thick and still need larger mechanical erection position and install, and like this, leave the inner utilizable space of audio amplifier for just very little and cause the thickness of audio amplifier very large, profile unsightly, is inconvenient to again carry.
Utility model content
The purpose of this utility model overcomes deficiency of the prior art, provides one that audio amplifier volume can be made to reduce, can effectively reduce again the tank thickness of audio amplifier, have the Ultrathin speaker of good low frequency behavior simultaneously.
The purpose of this utility model is achieved through the following technical solutions:
A kind of Ultrathin speaker, comprise audio amplifier front and back panel, high pitch loudspeaker, woofer, woofer support, passive radiator, form audio amplifier cavity by audio amplifier front and back panel, woofer, woofer support, passive radiator, it is characterized in that: the magnetite of woofer is placed in outside described audio amplifier cavity.
Further, the described woofer support back of the body is covered with airtight vibration damping layer.
Further, described airtight vibration damping layer includes but not limited to low ratio foamed EVA layer, rubber layer, adhesive-layer.
The utility model has the following advantages and beneficial effect compared to existing technology:
(1) the utility model utilizes the magnetite of woofer to expose to outside audio amplifier cavity, effectively reduces the thickness of audio amplifier, improves audio amplifier space availability ratio, and effectively increases the power of woofer, improves the loudness (sound pressure level SPL) of audio amplifier;
(2) the utility model covers airtight vibration damping layer at the woofer support back of the body, and obturation effect is good, effectively reduces because of the acoustic loss caused that leaks gas;
(3) the utility model structure is simple, is convenient to promote realize.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model Ultrathin speaker;
Fig. 2 is the cutaway view of the utility model Ultrathin speaker;
Fig. 3 is that the thickness of the utility model Ultrathin speaker reduces effect schematic diagram;
Fig. 4 is the acoustic equivalent circuit of the utility model Ultrathin speaker.
Embodiment
Specifically illustrate execution mode of the present utility model below in conjunction with accompanying drawing, accompanying drawing is only for reference and use is described, does not form the restriction to the utility model scope of patent protection.
As shown in Figure 1, 2, the utility model provides a kind of Ultrathin speaker, comprise audio amplifier front and back panel 1,2, high pitch loudspeaker 3, woofer 4, woofer support 5, passive radiator 6, by audio amplifier front and back panel 1,2, woofer 4, woofer support 5, passive radiator 6 form audio amplifier cavity 10, it is characterized in that: the magnetite 40 of woofer 4 is placed in outside described audio amplifier cavity 10.
In the present embodiment, described woofer support 5 back of the body is covered with airtight vibration damping layer.
Described airtight vibration damping layer is low ratio foamed EVA layer, rubber layer or adhesive-layer etc.
By four screws being used for locking woofer 4, woofer 4 and front and back panel 1,2 are locked in the lump, Leakage prevention.
As shown in Figure 3, the magnetite 40 due to woofer 4 exposes to outside audio amplifier cavity 10, saves the effective depth of the magnetite 40 of woofer 4, thus effectively reduces the thickness of audio amplifier, and in the present embodiment, audio amplifier thickness reduces more than 20%.
In the present embodiment, the specific works principle of Ultrathin speaker is as follows:
Audio amplifier, when broadcasting music, by audio amplifier front and back panel 1,2, woofer support 5 and rear chamber, forms an airtight cavity roughly the same, effectively can prevent acoustic short circuit;
Audio amplifier is when broadcasting music, the acoustic equivalent circuit of Ultrathin speaker as shown in Figure 4, comprise by Rvc and Lvc connect the RL circuit formed, the first rlc circuit formed by Rd, Lsd, Cmd parallel connection, the second rlc circuit formed by Rp, Lsp, Cmp parallel connection, by parallel the 2nd RL circuit formed of Re, Le.Rp, Lsp, Cmp are wherein the antiresonant circuit of this radiator.
Known by above-mentioned equivalent electric circuit, increase the weight of the passive radiator 6 of audio amplifier, can Rp and Lsp be changed; By changing the coefficient of elasticity of ring material, can Cmp being changed, therefore by changing Rp, Lsp, Cmp, effectively can change the lowest resonance frequency of audio amplifier, thus reach the effect improved low frequency and export.
The heating part such as magnetite 40 grade of woofer 4 is placed in outside airtight audio amplifier cavity 10 by the utility model, utilizes outside lower ambient temperature and cross-ventilation to lower the temperature to woofer 4, effectively
Increase the bearing power of woofer 4, and owing to reducing the temperature rise of audio amplifier inside, make audio amplifier safer;
For solving the vibration and installation leakage problem that expose woofer 4 magnetite 10 and audio amplifier, audio amplifier front and back panel 1,2 and woofer 4 being screwed, and using the airtight vibration damping layer back of the body to cover woofer support 5, then being installed on audio amplifier.
The above embodiment only have expressed execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, not departing under prerequisite of the present utility model, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (3)
1. a Ultrathin speaker, comprise audio amplifier front and back panel, high pitch loudspeaker, woofer, woofer support, passive radiator, form audio amplifier cavity by audio amplifier front and back panel, woofer, woofer support, passive radiator, it is characterized in that: the magnetite of woofer is placed in outside described audio amplifier cavity.
2. Ultrathin speaker according to claim 1, is characterized in that: the described woofer support back of the body is covered with airtight vibration damping layer.
3. Ultrathin speaker according to claim 2, is characterized in that: described airtight vibration damping layer includes but not limited to low ratio foamed EVA layer, rubber layer, adhesive-layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520503710.6U CN204859513U (en) | 2015-07-10 | 2015-07-10 | Ultra -thin audio amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520503710.6U CN204859513U (en) | 2015-07-10 | 2015-07-10 | Ultra -thin audio amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204859513U true CN204859513U (en) | 2015-12-09 |
Family
ID=54750023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520503710.6U Active CN204859513U (en) | 2015-07-10 | 2015-07-10 | Ultra -thin audio amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204859513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109982176A (en) * | 2019-04-11 | 2019-07-05 | 深圳康佳电子科技有限公司 | A kind of heat dissipation sound equipment |
-
2015
- 2015-07-10 CN CN201520503710.6U patent/CN204859513U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109982176A (en) * | 2019-04-11 | 2019-07-05 | 深圳康佳电子科技有限公司 | A kind of heat dissipation sound equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210712 Address after: 516223 Dongfeng management area, Xinxu Town, Huiyang District, Huizhou City, Guangdong Province Patentee after: Dongsheng (Huizhou) Electronics Co.,Ltd. Address before: 516226 Dongfeng management area, Xinxu Town, Huiyang District, Huizhou City, Guangdong Province Patentee before: HUIYANG EAST ASIA ELECTRONIC PRODUCTS Co.,Ltd. |
|
| TR01 | Transfer of patent right |