CN205028826U

CN205028826U - Illuminating keyboard

Info

Publication number: CN205028826U
Application number: CN201520793752.8U
Authority: CN
Inventors: 李鹏
Original assignee: Hefei Lianbao Information Technology Co Ltd
Current assignee: Hefei Lianbao Information Technology Co Ltd
Priority date: 2015-10-10
Filing date: 2015-10-10
Publication date: 2016-02-10
Anticipated expiration: 2025-10-10

Abstract

The utility model discloses an illuminating keyboard, it includes LED lights, keyboard portion and optical conduction portion, and wherein optical conduction portion includes the light guide plate and sets up in the reflective membrane of light guide plate bottom surface and top surface, and the position department that corresponds with every button keyboard portion the optical conduction portion has a trompil, and the button is pass the trompil and fixed. The utility model discloses an illuminating keyboard, it is fixed that the button passes optical conduction portion through the trompil of light guide plate to the whole thickness that makes illuminating keyboard obviously reduces.

Description

Illuminated keyboard

Technical field

The utility model relates to a kind of keyboard, particularly relates to a kind of illuminated keyboard.

Background technology

Still can accurately pressing keys position to be to avoid the demand of input error in the environment that illumination is not good in order to meet user, illuminated keyboard arises at the historic moment.At present, illuminated keyboard mostly is the keyboard with backlight module, due to the backlight module increased, also thickeied the thickness of keyboard simultaneously, and illuminated keyboard folded structure of establishing layer by layer, element quantity is many, very loaded down with trivial details, thickness declines not easily, cannot meet the demand of current product slimming.

In addition, because illuminated keyboard will arrange light source on keyboard, therefore, the heat that light source produces can cause the local pyrexia of keyboard, if poor heat radiation, can cause serious infringement, affect the useful life of keyboard to keyboard.

Utility model content

The purpose of this utility model is as solving the problem and provides a kind of structure simple, and illumination effect evenly and the illuminated keyboard of thinner thickness.

The technical scheme that the utility model adopts is to provide a kind of illuminated keyboard, comprise LED, keypad portion and light conducting part, wherein light conducting part comprises light guide plate and is arranged at the reflective membrane of bottom surface of light guide plate and end face, the position corresponding with each button of keypad portion of this light conducting part has perforate, and button is fixed through perforate.

As preferably, described LED is arranged on the periphery away from button in light guide plate.

As preferably, the part not arranging described LED of the periphery of described light guide plate is provided with reflective membrane.

As preferably, the position near button on the bottom surface of described light guide plate is provided with site, repeatedly reflects at site place to make the light entering into light guide plate.

As preferably, the quantity of described LED is 1-20, is more preferably 2-8.

As preferably, the material of described light guide plate is polymethyl methacrylate (chemical name is polymethyl methacrylate, is abbreviated as PMMA), more preferably nanometer acrylic or aerial organic glass.

As preferably, described reflective membrane is PVC reflective membrane, PU reflective membrane or PET reflective membrane.

Illuminated keyboard of the present utility model, can obtain following advantage:

1, because the position corresponding with button of light conducting part has perforate, button is fixed through perforate, thus the integral thickness of illuminated keyboard is obviously reduced.

2, bottom surface of light guide plate, end face have reflective membrane, improve the utilance of light, make the distribution of light in each region in light guide plate even;

3, LED can be arranged on the light guide plate periphery away from button, illuminates keyboard by light conduction, effectively can prevent LED from generating heat and cause damage to keyboard, is conducive to keyboard heat radiation, is convenient for changing simultaneously to the LED reaching useful life;

4, when the bottom surface of light guide plate is provided with site, the light entering into light guide plate can be made repeatedly to reflect at site place, thus carry out mixed light conduction in guide-lighting region, improve the utilance of light.

Accompanying drawing explanation

Fig. 1 is the schematic top plan view of an embodiment of illuminated keyboard of the present utility model;

Fig. 2 is the cross sectional representation of another embodiment of illuminated keyboard of the present utility model;

Fig. 3 is the partial enlarged drawing of part A in Fig. 2.

Description of reference numerals:

Button 1; Light guide plate 2;

LED 3; Reflective membrane 4;

Site 6; Light 5.

Embodiment

With reference to the accompanying drawings specific embodiment of the utility model is described in detail.

< embodiment 1>

Fig. 1 is the schematic top plan view of an embodiment of illuminated keyboard of the present utility model.Illuminated keyboard as shown in Figure 1, comprise LED 3, keypad portion and light conducting part, wherein light conducting part comprises light guide plate 2 and is placed in the reflective membrane 4 of bottom surface of light guide plate and end face, this light conducting part has perforate in the position of each button 1 correspondence of keypad portion, and button 1 passes light conducting part by perforate.The quantity of described LED is such as 8, is separately positioned on the both sides of light guide plate.

The material of described light guide plate is nanometer acrylic; Described reflective membrane is PVC reflective membrane.

< embodiment 2>

Fig. 2 is the cross sectional representation of another embodiment of illuminated keyboard of the present utility model, wherein illustrate only a button in button portion and the light conducting part of its side and LED, and other button omits.As shown in Figure 2, light guide plate 2 receives the light 5 sent from LED 3, light 5 conducts in light guide plate 2, light can toward all angles diffusion, can reflect when being mapped to the reflective membrane 4 of light guide plate 2 bottom surface and end face, then penetrate corresponding to the tapping of button by light conducting part, thus illuminate each button.Dotted line with arrow in Fig. 2 represents light, only draws two light 5 and illustrates light conducting path.

Fig. 3 is the partial enlarged drawing of part A in Fig. 2.As shown in Figure 3, the position near button 1 on the bottom surface of light guide plate 2 can be provided with site 6, to make the light 5 entering into light guide plate 2 repeatedly reflect at site 6 place, thus carries out mixed light conduction in guide-lighting region, improves the utilance of light.

In the above-described embodiments, LED 3 has been arranged on the left and right sides of the light guide plate 2 away from button 1, illuminates keyboard, effectively can prevent LED 3 from generating heat and to cause damage to keyboard by light conduction, be conducive to keyboard heat radiation, the LED reaching useful life be convenient for changing simultaneously.The setting position of LED 3 is not limited thereto, and also can be arranged on upside and/or the downside of light guide plate 2.

In addition, the part not arranging LED 3 of the both sides of light guide plate 2 also can arrange reflective membrane, thus improves light utilization ratio, reduces light loss.

More than show and describe general principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. an illuminated keyboard, it is characterized in that: comprise LED, keypad portion and light conducting part, wherein light conducting part comprises light guide plate and is arranged at the reflective membrane of bottom surface of light guide plate and end face, the position corresponding with each button of keypad portion of this light conducting part has perforate, and button is fixed through perforate.

2. illuminated keyboard as claimed in claim 1, is characterized in that: described LED is arranged on the periphery away from button in light guide plate.

3. illuminated keyboard as claimed in claim 2, is characterized in that: the part not arranging described LED of the periphery of described light guide plate is provided with reflective membrane.

4. illuminated keyboard as claimed in claim 1, is characterized in that: the position near button on the bottom surface of described light guide plate is provided with site, repeatedly reflects at site place to make the light entering into light guide plate.

5. the illuminated keyboard according to any one of Claims 1-4, is characterized in that: the quantity of described LED is 1-20.

6. illuminated keyboard as claimed in claim 5, is characterized in that: the quantity of described LED is 2-8.

7. the illuminated keyboard according to any one of Claims 1-4, is characterized in that: the material of described light guide plate is polymethyl methacrylate.

8. the illuminated keyboard according to any one of Claims 1-4, is characterized in that: described reflective membrane is PVC reflective membrane, PU reflective membrane or PET reflective membrane.