CN202307621U - Keyboard apparatus and portable terminal equipped with the same - Google Patents

Abstract

The utility model discloses a keyboard apparatus and a portable terminal equipped with the same. The keyboard apparatus comprise buttons which are transparent inject-molded products; a plated film which is arranged on the upper surfaces of the buttons in a vapor-plated manner; and a printed circuit board which is arranged under the buttons and provided with a luminous element at a predetermined position, wherein light sources are provided by the luminous element to the buttons. According to the above keyboard apparatus, during the day, light is reflected by the vapor-plated buttons on the upper surface so that luster is exhibited and a metal qualitative sense is also provided; and at night, the vapor-plated buttons on the upper surface brighten based on the luminous element disposed under the buttons, such that both luster and a metal qualitative sense are exhibited at the same time, and a feeling of nobility is presented.

Description

Key board unit and have the portable terminal of this key board unit

Technical field

The utility model relates to key board unit, and the upper surface vapor deposition that relates in particular to button has the key board unit of plated film and has the portable terminal of this key board unit.

Background technology

Generally, portable terminal refers to that people can be under the situation of carrying carry out the device of radio communication with the other side.This portable terminal refers generally to cordless telephone, digital mobile phone, personal digital assistant (PDA:PersonalDigital Assistant) etc.; And, can be divided into straight-plate-type (bar type), convertible (flip type), collapsible (folder type), slidingtype (sliding type) etc. usually according to its switching mode.The above-mentioned existing portable terminal of enumerating can possess antenna assembly, data input/output device, data source and sink usually.And said data input device is generally the key board unit of importing data through the push action of finger.

Usually, existing key board unit constitutes as follows.As shown in Figure 1, existing key board unit 1 comprises: the printed circuit board (PCB) 2 with a plurality of pots of young sheets (dome switch) 3; Be arranged at the button 4 of the top of the young sheet 3 of a plurality of said pots.And the upper surface of said button 4 is printed with the numeral and the printed layers (not shown) of literal and symbol etc., is formed with the protruding 4a of a plurality of pressurizations below the said button 4, a plurality of pots of young sheets 3 is pressurizeed being used for.

Misoperation when the user perhaps uses above-mentioned key board unit than the dark place at night, because light is darker, thereby can't identify numeral and literal and the symbol on the button exactly, thereby might take place in the existing key board unit that as above constitutes.

In order to address the above problem; Provide the key board unit that numeral and literal and symbol on a kind of button can be shinny recently; Its concrete structure is following; As shown in Figure 2, existing key board unit 10 comprises: the printed circuit board (PCB) 20 with a plurality of pots of young sheets (dome switch) 30 and a plurality of light-emitting components (for example light-emitting diode) 40; Be arranged at the LGP 50 of the top of the young sheet 30 of said pot, this LGP 50 has and is used for propagating into the light scattering pattern that its inner light reflexes to key-side; Be arranged at the substrate rubbers (base rubber) 60 of said LGP 50 tops, the upper surface of this substrate rubbers 60 has the printed layers 60a of the numeral of being printed with and literal and symbol etc.; Be arranged at the button 70 of the top of said substrate rubbers 60.And, be formed with the protruding 60b of a plurality of pressurizations below the said substrate rubbers 60.

Though the existing key board unit that as above constitutes can utilize light-emitting component to make the numeral of key board unit and literal and symbol etc. shinny; But this key board unit need pile up above the young sheet of pot of printed circuit board (PCB) LGP substrate rubbers and the button protruding with having pressurization are set; Therefore cause the thickness of key board unit to increase, this runs counter to the development trend of product miniaturization.And; This existing key board unit only makes numeral and literal and symbol etc. shinny, and therefore shinny area is less; This still is difficult to identify exactly numeral and literal and the symbol on the button for the relatively poor user of eyesight, and ordinary sensation is given in this design.

The utility model content

The utility model proposes in order to address the above problem, and no matter by day or the portable terminal that the key board unit of light and metal-like can both be provided night and have this key board unit its purpose is to provide a kind of has plated film at the upper surface vapor deposition as the button of transparent injection-molded article and make it.

Another purpose of the utility model is to provide a kind of key board unit of portable communication appts of relative prior art designs simplification.

To achieve these goals, the key board unit that the utility model provides comprises: button, this button are transparent injection mo(u)lding article; Plated film, vapor deposition is in the upper surface of said button; Printed circuit board (PCB) is arranged at the below of said button, and is provided with light-emitting component in the precalculated position, and said light-emitting component provides light source to said button.

And it is protruding that the lower surface of said button is formed with pressurization, and the protruding below of said pressurization is provided with the young sheet of pot that is arranged at said printed circuit board (PCB).

And said light-emitting component is a light-emitting diode.

And said plated film is an aluminizer.

To achieve these goals, the portable terminal that provides of the utility model has aforesaid key board unit.

As stated; According to the key board unit of the utility model, by day, upper surface is reflected light by the button of vapor deposition and metal-like when gloss is provided; And on night; Upper surface, metal-like when therefore also can gloss be provided, and gives noble impression according to the light-emitting component that is arranged at button below and shinny by the button of vapor deposition.

And, according to the key board unit of the utility model, owing to have aforesaid button; Need not to use the existing protruding substrate rubbers of pressurization that is formed with, the pressurization of button is protruding directly to be contacted with the young sheet of pot, thereby has reduced number of elements; Provide cost savings, also improved the click feel of product.

Description of drawings

Fig. 1 is the sectional view of existing key board unit;

Fig. 2 is the sectional view of existing key board unit that can be shinny;

The sketch map of the key board unit that Fig. 3 provides for the utility model;

Fig. 4 is the sectional view that the major part of the key board unit that the utility model provides is shown.

Symbol description:

100: key board unit 110: button

110a: pressurization protruding 120: plated film

130: printed circuit board (PCB) 140: light-emitting component

150: the young sheet of pot

Embodiment

Below, specify preferred embodiment with reference to accompanying drawing according to the utility model.Those skilled in the art is to be understood that; Embodiment that this specification is put down in writing and the structure shown in the accompanying drawing are merely the preferred embodiment of the utility model; But the utility model is not limited thereto, and under the prerequisite of the thought range that does not break away from the utility model, can carry out various distortion or change.

The sketch map of the key board unit that Fig. 3 provides for the utility model, Fig. 4 are the sectional view that the major part of the key board unit that the utility model provides is shown;

Like Fig. 3 and shown in Figure 4, the key board unit 100 that the utility model provides comprises: button 110, this button are transparent injection mo(u)lding article; Plated film 120, vapor deposition is in the upper surface of said button 110; Printed circuit board (PCB) 130 is arranged at the below of said button 110, and is provided with light-emitting component 140 in the precalculated position, and said light-emitting component 140 provides light source to said button 110.At this, said light-emitting component 140 is preferably light-emitting diode.

And, on said printed circuit board (PCB) 130, be provided with the young sheet 150 of pot, and above the young sheet 150 of said pot, be provided with the pressurization protruding 110a integrally formed with the lower surface of said button 110.That is, be formed with the protruding 110a of pressurization, below the protruding 110a of pressurization, be provided with the young sheet 150 of pot, and the young sheet 150 of pot be arranged on the said printed circuit board (PCB) 130 at the lower surface of said button 110.Thus, the user makes the protruding 110a of said pressurization push the young sheet 150 of said pot, thereby carries out corresponding action through pushing said button 110.

The key board unit 100 that as above constitutes because vapor deposition can reverberation in the plated film 120 of the upper surface of button 110, therefore can provide gloss by day and give metal-like.And light-emitting component 140 can provide light source to the button 110 as transparent injection mo(u)lding article; And the transmission through plated film 120 of this light; Therefore under night or environment, also gloss and metal-like can be provided, thereby can improve the exterior quality of the portable terminal that uses the key board unit that the utility model provides in dark.

This plated film 120 can obtain the different metallic look through the different metal raw material, for example uses aluminium to obtain the aluminizer of silver color, perhaps uses nickel to obtain rifle black plated nickel film or the like.The thickness of this plated film 120 is arranged to make the degree of the light transmission that light-emitting component 140 sends to get final product.

For the expression numeral that in Fig. 4, does not illustrate and the printed layers of literal and symbol etc., can be printed in the upper surface of said button 110.Specifically, the upper surface of said button 110 is printed with said printed layers, and vapor deposition has plated film 120 on the upper surface said printed layers, said button 110 not printing.But also can have following structure, the entire upper surface vapor deposition of promptly said button 110 has plated film 120, on said plated film 120, is printed with above-mentioned printed layers.

The key board unit of the utility model that as above constitutes; Since as transparent injection-molded article by strong upper surface on carry out vapor deposition treatment, and below button, be provided with light-emitting component, therefore; By day; Upper surface is reflected light by the button of vapor deposition and metal-like is provided when gloss is provided, and in the dark, upper surface by the button of vapor deposition according to the light-emitting component that is arranged at the button below and shinny; When therefore also can gloss be provided metal-like is provided, and gives noble impression.

And, according to the key board unit of the utility model, owing to have aforesaid button; Need not to use the existing protruding substrate rubbers of pressurization that is formed with, the pressurization of button is protruding directly to be contacted with the young sheet of pot, thereby number of elements is reduced; Provide cost savings, also improved the click feel of product.

And, according to the key board unit of the utility model, applicable to all portable terminals with key board unit.

More than; Though be illustrated through embodiment and accompanying drawing key board unit to portable communication appts; But be not limited thereto, should know for a person skilled in the art according to the utility model and can carry out various replacements, distortion and change the terminal of various forms.

Claims (5)

1. a key board unit is characterized in that, comprising: button, this button are transparent injection mo(u)lding article; Plated film, vapor deposition is in the upper surface of said button; Printed circuit board (PCB) is arranged at the below of said button, and is provided with light-emitting component in the precalculated position, and said light-emitting component provides light source to said button.

2. key board unit as claimed in claim 1 is characterized in that, it is protruding that the lower surface of said button is formed with pressurization, and the protruding below of said pressurization is provided with the young sheet of pot that is arranged at said printed circuit board (PCB).

3. key board unit as claimed in claim 1 is characterized in that, said light-emitting component is a light-emitting diode.

4. key board unit as claimed in claim 1 is characterized in that, said plated film is an aluminizer.

5. a portable terminal is characterized in that, said portable terminal has like each described key board unit of claim 1 to 4.

Images