A kind of smallpox pipeline ventilation fan
Technical field
The utility model is a kind of smallpox pipeline ventilation fan, belongs to the improvement technology of smallpox pipeline ventilation fan patent.
Background technique
The existing smallpox pipeline ventilation fan that has illumination function generally will throw light on and do simultaneously to decorate usefulness, and there is following defective in this technology: the one, need to use forceful electric power, and Safety performance is poor; The 2nd, employed lamp tube service life is shorter; The 3rd, the shape in the shinny zone of panel and size are limited by fluorescent tube can, have reduced the ornamental of product; The 4th, power ratio is higher, and heating value is big, and light is inhomogeneous, and is dazzling etc.
Summary of the invention
The purpose of the utility model be to consider the problems referred to above and provide a kind of safe and reliable, power is low, the life-span is long, brightness can be adjusted on demand, light is even, the shinny region shape of panel and big or small unrestricted smallpox pipeline ventilation fan.
For realizing the foregoing invention purpose; The technological scheme of the utility model is: a kind of smallpox pipeline ventilation fan, comprise rear case, main control board and front panel, and wherein main control board is installed in the rear case; Front panel is installed in the intake grill place of rear case; The back side device that it is characterized in that said front panel has Backlight, and Backlight is electrically connected with main control board through lead, and the regional device of the corresponding Backlight of front panel has transmission element or is transmission region.
The rear side device of said Backlight has cover plate, and cover board arrangement is the back side of plate in front.
Said cover plate and front panel one are made.
Said main control board is installed in the circuit board box, and circuit board box is packed in the rear case.
Said Backlight is T4T5, LED, CCFL or EEFL light source.
The utility model is owing to be employed in the structure that the back side device of front panel has Backlight; Not only can realize the effect of decorative lighting, and because Backlight uses is the dc low-voltage electricity, the ventilation fan that has illumination function with existing technology is compared; Its safety and reliability; Power is low, and efficiency is high, and the life-span is long
,Light evenly, do not glimmer, Backlight size, size and shape can cut arbitrarily simultaneously, the ventilation fan front panel that has increased substantially ornamental.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the outline drawing of the utility model;
Fig. 3 is the structural representation of governor circuit panel assembly in circuit board box of the utility model;
Fig. 4 is the Backlight of the utility model and the connection diagram of main control board.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Embodiment 1:
Like Fig. 1,2,3, shown in 4; The utility model smallpox pipeline ventilation fan comprises rear case 1, main control board 2 and front panel 6, and wherein main control board 2 is installed in the rear case 1; Front panel 6 is installed in the intake grill place of rear case 1; The back side device of said front panel 6 has Backlight 7, and Backlight 7 is electrically connected with main control board 2 through lead 8, and the regional device of front panel 6 corresponding Backlights 7 has transmission element 4 or is transmission region.
Heat insulation for shading, the rear side device of said Backlight 7 has cover plate 5, and cover plate 5 installs the back side of plate 6 in front.
Be convenient processing, said cover plate 5 is made with front panel 6 one.
Install for preventing dust and being convenient to, said main control board 2 is installed in the circuit board box 3, and circuit board box 3 is packed in the rear case 1.
In the present embodiment, said Backlight 7 is T4T5, LED, CCFL or EEFL light source.
Embodiment 2:
Present embodiment is with embodiment's 1 difference: the zone of said front panel 6 corresponding Backlights 7 is a transmission region.Other structure is identical with embodiment 1.