A kind of light-permeable key device of electromagnetic oven
Technical field
The utility model relates to the light-permeable key device of electromagnetic oven key device, particularly a kind of electromagnetic oven, is applicable on the electromagnetic oven that the touch sensible mode controls, and belongs to the improvement technology of electromagnetic oven touch sensible key device.
Background technology
For cooking furnace, electromagnetic oven product for example, touch controlled key device commonly used now all is the pcb board that adopts a hard, and induced key is installed on it, the distinguished symbol that goes out induced key at the panel upper surface silk-screen that faces induced key comes.During electromagnetic oven start work, the user touches facing to the distinguished symbol of induced key, can carry out cooking operation.This electromagnetic oven seems that in appearance difference is little under the operating state He under the off position, and identification is inconvenient; And panel surface will carry out silk-screen and handle not environmental protection; Product is not attractive in appearance, not high-grade simultaneously.
The utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, a kind of light-permeable key device of electromagnetic oven is provided, it need be at the panel surface silk-screen, environmental protection, start just can highlightedly demonstrate each function button of electromagnetic oven, whether can make things convenient for the User Recognition electromagnetic oven in running order, development and Design saves time, convenience, the product specification height.
The technical scheme that realizes the utility model purpose is: a kind of light-permeable key device of electromagnetic oven, comprise the panel, touch-sensitive panel and the display control board that set gradually from top to bottom, the panel lower surface is provided with the button distinguished symbol, be connected with display control board by conductive lead wire on the touch-sensitive panel, it is characterized in that: panel is that transparent material is made, described touch-sensitive panel is transparent flexible film plate, display control board is provided with light-emitting component, and non-corresponding display control board place covers light shield layer on the lower surface of panel.
Described panel is the microcrystal glass plate of light-permeable, perhaps armorplate glass.
In technique scheme,, can cover photic zone at the corresponding display control board of the lower surface place of panel in order to strengthen the translucent effect of panel.
Above-mentioned light shield layer and photic zone can be respectively light screening material and the light transmissive materials that directly is coated in the panel lower surface; Also can be to stick on the baffle plate panel lower surface, that be distributed with shading region and transparent area on it.
Described baffle plate adopts the plastic film or the acrylic board of light-permeable, applies one deck light screening material thereon, and does not apply in the position of corresponding induced key distinguished symbol; Perhaps apply the material of energy printing opacity in the position of corresponding induced key distinguished symbol.
Have conductive electrode and electric connection line above the above-mentioned transparent fexible film touch-sensitive panel.
The position of the light-emitting component on the described display control board faces the conductive electrode on the touch-sensitive panel.
Described light-emitting component can adopt the color lamp of light-emitting diode or general lighting lamp or changeable colour etc.
Can design the beam condensing unit that prevents that light from interfering around each light-emitting component on the described display control board.
The beneficial effects of the utility model are: by the panel lower surface of printing opacity being demonstrated the distinguished symbol of induced key; The touch-sensitive panel of transparent flexible thin web manufacturing tightly is posted on the panel lower surface; The light-emitting component on the display control board be contained in conductive electrode under; Make electromagnetic oven under "on" position, the light that light-emitting component sends makes the highlighted demonstration of induced key distinguished symbol after passing transparent touch-sensitive panel, can make things convenient for the User Recognition electromagnetic oven whether in running order, the effect that induced key is shown is finer and smoother and true to nature, and makes whole electromagnetic oven also give a kind of attractive in appearance, high-grade visual effect of people; Simultaneously, it need be in panel surface silk-screen, environmental protection.
Description of drawings
Fig. 1 is the exploded perspective view of the utility model embodiment one;
Fig. 2 is the exploded perspective view of the utility model embodiment two.
Omitted among the figure and the irrelevant miscellaneous part of the utility model key points in design.
Embodiment
Below in conjunction with drawings and Examples embodiment of the present utility model is described further.
Embodiment one:
As shown in Figure 1, the utility model comprises panel 3, touch-sensitive panel 1 and display control board 2; Touch-sensitive panel 1 is on the PCB substrate that the transparent flexible material is made, and the electrical conductivity alloy slurry is formed the plate of a kind of film like of conductive electrode 11 and electric connection line 12 on it with high-temperature firing; Touch-sensitive panel 1 adopts adhesive to stick on the lower surface of panel 3, and the conductive electrode on it 11 contacts fully with the lower surface of guidance panel 3, the end of electric connection line 12 is connected with conductive lead wire 4, and conductive lead wire 4 binding post 41 by end again is connected on the plug wire groove 23 on the display control board 2.
Display control board 2 is pcb boards of a kind of hard, be positioned at touch-sensitive panel 1 below, be furnished with several signal operation treatment elements 21 and several light-emitting components 22 on it.
Panel 3 is a microcrystal glass plate, and the non-corresponding display control board of the lower surface of panel 32 places cover light shield layer; In order to strengthen the translucent effect of panel 3, can cover photic zone at the corresponding display control board of lower surface 2 places of panel 3.Described light shield layer and photic zone can be respectively light screening material and the light transmissive materials that directly is coated in panel 3 lower surfaces; Also can be to stick on baffle plate panel 3 lower surfaces, that be distributed with shading region and transparent area on it.Described baffle plate adopts the plastic film or the acrylic board of light-permeable, applies one deck light screening material thereon, and does not apply in the position of corresponding induced key distinguished symbol 31; Perhaps apply the material of energy printing opacity in the position of corresponding induced key distinguished symbol 31.
The distinguished symbol 31 that can anti-word demonstrates induced key for the lower surface that makes panel 3.Induced key distinguished symbol 31 is corresponding perpendicular to the position of the conductive electrode 11 on the position on the panel direction and the touch-sensitive panel 1.Conductive electrode 11 is to make or alloy pulp that can printing opacity is made with the electrically conducting transparent alloy pulp, makes things convenient for printing opacity.Electric connection line 12 can be that the alloy pulp of transparent or printing opacity is made, and also can be that lighttight alloy pulp is made.
Electromagnetic oven one energising, light-emitting component 22 will send light, and light passes transparent conductive electrode 11 backs the induced key distinguished symbol 31 of panel 3 lower surfaces is illuminated, and sees in appearance from electromagnetic oven to seem very attractive in appearance, high-grade.And whether the user can identify electromagnetic oven easily in running order.
Embodiment two:
The difference of present embodiment and embodiment one is, in the present embodiment, on display control board 2, light-emitting component 22 around design the beam condensing unit 24 that prevents that light from interfering is arranged, the light mutually noninterfere that light-emitting component is sent makes induced key distinguished symbol 31 brighter by photograph.