CN201718011U

CN201718011U - Sound box

Info

Publication number: CN201718011U
Application number: CN2010202437941U
Authority: CN
Inventors: 陈仁宗
Original assignee: Jinruima Technology (shenzhen) Co Ltd
Current assignee: Jinruima Technology (shenzhen) Co Ltd
Priority date: 2010-06-30
Filing date: 2010-06-30
Publication date: 2011-01-19
Anticipated expiration: 2020-06-30

Abstract

The utility model discloses a sound box, which includes a plastic housing, wherein the outer surface of the housing is electroplated with a metal coating with the thickness of 10-12 Mum. Because the metal coating is as thick as 10-12 Mum, and the hardness of the outer surface of the plastic housing can be greatly improved, the alt expression ability of the housing can be greatly enhanced; the inner surface of the housing is not electroplated or only a part of the inner surface is electroplated with a metal coating about, so that the inner surface of the housing can keep partial characteristics of the original plastic housing, and retains partial sweet sound effects of bass and alto. Therefore, the quality of the sound box product is greatly improved.

Description

A kind of audio amplifier

Technical field

The utility model relates to a kind of audio amplifier.

Background technology

Present existing part audio amplifier series products, especially mini audio amplifier and carry-on sound equipment have adopted the shell of plastic material morely, plastic casing has easy machine-shaping, shape is unrestricted substantially, material cost and processing cost are low, bass and middle pitch had the advantage of preferable expressive ability, but because the relative metal material quality of plastics is softer, case hardness is low, so the expressive force of sound has limitation, especially relatively poor to the expressive force of high pitch, be difficult to improve the quality of product, though also being arranged, the part speaker products electroplated layer of metal coating at the outer surface of shell, produce a kind of texture of metal shell, but this layer coat of metal purpose is to play decoration function, its thickness is generally between 3.5～4.5 μ m, hardness humidification to the plastic casing outer surface is less, so also very limited to the expressive force contribution that improves sound.

The utility model content

The technical problem that the utility model mainly solves provides the audio amplifier that a kind of sound expressive force is strong, cost of manufacture is low.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of audio amplifier is provided, comprises the shell of plastic material, the outer surface of described shell is electroplate with a coat of metal, and the thickness of the described coat of metal is 10～12 μ m.

The beneficial effects of the utility model are: owing to electroplated layer of metal coating on the plastic material shell, the coat of metal is thicker, reach 10～12 μ m, can promote the hardness of plastic casing outer surface greatly, so strengthened the expressive ability of shell greatly to high pitch, the inner surface of shell do not electroplate or only the part plating inner surface coat of metal is arranged, make the characteristic of the former plastic casing of inner surface of outer cover reserve part, keep the sweet audio of bass and middle pitch part, thereby significantly promote the quality of speaker products.

Description of drawings

Fig. 1 is casing of loudspeaker box metal layer thickness and outer surface of outer cover hardness corresponding relation figure;

Fig. 2 is the structural representation of the utility model audio amplifier embodiment one;

Fig. 3 is the structural representation of the utility model audio amplifier embodiment two.

Wherein, 1, shell; 2, the coat of metal; 21, wire drawing layer.

Embodiment

By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.

That shown in Figure 1 is casing of loudspeaker box metal layer thickness and outer surface of outer cover hardness corresponding relation figure, this test data draws during for 2.4mm when outer casing thickness, as can be seen from the figure working as the coat of metal is nickel, when the thickness of the coat of metal is 4 μ m, the outer surface hardness of shell is 180Hv, when the thickness of the coat of metal is 10 μ m, the outer surface hardness of shell is 370Hv, when the thickness of the coat of metal was 11 μ m, the outer surface hardness of shell was 380Hv, when the thickness of the coat of metal is 12 μ m, the outer surface hardness of shell is 385Hv, when the thickness of the coat of metal surpassed 12 μ m, the hardness of outer surface of outer cover substantially no longer rose, and slightly descended.

First embodiment as audio amplifier described in the utility model, see also Fig. 2, the shell 1 that comprises plastic material, plastic casing 1 can be PVC shell, PC shell, ABS shell or PC and ABS alloy shell, the outer surface of described shell 1 is electroplate with a coat of metal 2, the described coat of metal 2 is a nickel coating, and thickness is 10～12 μ m.

Owing on the plastic material shell, electroplated the thicker coat of metal of one deck, the coat of metal can promote the hardness of plastic casing outer surface greatly, so strengthened the expressive ability of shell greatly to high pitch, the inner surface of shell is not electroplated, make inner surface of outer cover keep the characteristic of former plastic casing, keep the sweet audio of bass and middle pitch part, thereby significantly promote the quality of speaker products.

Second embodiment as the utility model audio amplifier, see also Fig. 3, the coat of metal 2 surfaces that are shell 1 outer surface with embodiment one difference also are provided with wire drawing layer 21, the thickness of wire drawing layer 21 is 3～5 μ m, wire drawing layer 21 makes the generation difference of the part surface thickness of shell 1, by adjusting the thickness of wire drawing layer, also can adjust the hardness of shell, to promote the expressivity of sound; The part inner surface of shell 1 also is electroplate with the coat of metal 2, the coat of metal 2 increases the part inner surface hardness of shell 1, adjust thickness, area and the distributing position of the shell 1 inner surface coat of metal 2, can make full use of the characteristic of metal and the characteristic of plastics, make audio amplifier reach desirable collocation, thereby obtain high-quality speaker products in these three parts of bass, middle pitch and high pitch.

The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. audio amplifier comprises the shell of plastic material, and it is characterized in that: the outer surface of described shell is electroplate with a coat of metal, and the thickness of the described coat of metal is 10～12 μ m.

2. audio amplifier according to claim 1 is characterized in that: described metal coating surface also is provided with the wire drawing layer, and the thickness of wire drawing layer is 3～5 μ m.

3. audio amplifier according to claim 1 and 2 is characterized in that: the described coat of metal is a nickel coating.

4. audio amplifier according to claim 1 and 2 is characterized in that: described shell is PVC shell, PC shell, ABS shell or PC and ABS alloy shell.

5. audio amplifier according to claim 1 and 2 is characterized in that: the part plating inner surface of described shell has the coat of metal.