Patent Application
20190242607
The subject matter herein generally relates to air purification devices, and more particularly to an air purification device having a light emitting diode (LED) indication system.
Generally, air purification devices, such as home air filter systems, use a display to display information such as a monitored air quality and air quality parameters. However, a user must be close enough to the display to read the information displayed on the display.
Implementations of the present disclosure will now be described, by way of embodiments, with reference to the attached figures.
It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. Additionally, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures and components have not been described in detail so as not to obscure the related relevant feature being described. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features. The description is not to be considered as limiting the scope of the embodiments described herein.
Several definitions that apply throughout this disclosure will now be presented.
The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected. The term “comprising” means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in a so-described combination, group, series and the like.
In one embodiment, the air purification device 1 further includes a motherboard 50. The controller 30 and the LED light group 40 are integrated on the motherboard 50. The motherboard 50 includes a plurality of ports (not shown). The air quality sensor 20 is electrically coupled to the ports of the motherboard 50.
The air quality sensor 20 detects air quality parameters in real time. In one embodiment, the air quality sensor 20 includes a dust sensor 21 and an air particle sensor 22. The air quality parameters include at least a dust concentration parameter, a formaldehyde concentration parameter, and a carbon dioxide concentration parameter. The dust sensor 21 detects dust concentration. The air particle sensor 22 detects formaldehyde concentration and carbon dioxide concentration. In another embodiment, the air quality sensor 22 further detects carbon monoxide concentration, methane concentration, and PM2.5 concentration.
The controller 30 determines an air quality grade according to the air quality parameters detected by the air quality sensor 20. In one embodiment, the air quality grade includes, but is not limited to, good, light pollution, and heavy pollution. The air quality grade is determined according to the parameters detected by the dust sensor 21 and the air particle sensor 22.
The LED light group 40 includes at least one LED light 41. In one embodiment, the LED light group 40 includes a plurality of LED lights 41. Each LED light 41 emits at least a light of a first color, a light of a second color, and a light of a third color. In one embodiment, the LED light group 40 includes 13 LED lights 41, the first color is blue, the second color is orange, and the third color is red. In other embodiments, the quantity of the LED lights 41 in the LED light group 40 may be changed according to requirements, and the LED lights 41 may emit lights of different colors according to requirements.
The controller 30 controls the LED lights 41 of the LED light group 40 to emit light of a corresponding color according to the air quality parameters to indicated the air quality grade. In one embodiment, the controller 30 controls the LED lights 41 of the LED light group 40 to emit the light of the first color, such as blue, when it is determined that the air quality grade is good. The controller 30 controls the LED lights 41 of the LED light group 40 to emit the light of the second color, such as orange, when it is determined that the air quality grade is light pollution. The controller 30 controls the LED lights 41 of the LED light group 40 to emit the light of the third color, such as red, when it is determined that the air quality grade is heavy pollution. In this way, a user is able to quickly know at a glance the air quality grade according to the color of light emitted by the LED lights 41.
In one embodiment, when the LED lights 41 emit the light of the corresponding color, the controller 30 controls the LED lights 41 to alternately emit light in gradual increasing and gradual decreasing intensity.
As shown in
The air purification device 1 further includes a refraction plate 70. The refraction plate 70 is mounted within the housing 10 and covers the LED cover 60. The refraction plate 70 refracts the light passing through the LED cover 60. In one embodiment, a surface of the refraction plate 70 is curved inward within the housing 10 and forms a fogged surface for diffusing the light passing through the refraction plate 70. Thus, the light passing through the refraction plate 70 is more evenly distributed to enhance an appearance of the air purification device 1.
As shown in
The embodiments shown and described above are only examples. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, including in matters of shape, size and arrangement of the parts within the principles of the present disclosure up to, and including, the full extent established by the broad general meaning of the terms used in the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201810117358.0 | Feb 2018 | CN | national |
