CN108583222B

CN108583222B - Photocatalyst component

Info

Publication number: CN108583222B
Application number: CN201711485088.0A
Authority: CN
Inventors: 储召年
Original assignee: Individual
Current assignee: Wuchang University of Technology
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2021-09-03
Anticipated expiration: 2037-12-29
Also published as: CN108583222A

Abstract

The invention discloses a photocatalyst component, which comprises a photocatalyst element, a light guide element, an actuating element and a control element, wherein a plurality of light introducing ends of the light guide element are uniformly arranged on the same latitude of the peripheral surface of a headlamp reflector of a vehicle, and a plurality of light emitting ends are uniformly arranged above the photocatalyst element; the actuating element is used for forming areas with different illumination intensities on the photocatalyst element; under the weak light environment, the control element controls the actuator to drive the shading sheet to move, so that the area, with the illumination intensity larger than the threshold value, on the photocatalyst element is shaded. By the invention, under the auxiliary illumination of the light guide element, the stability and uniformity of the catalytic effect of the photocatalyst are ensured; in addition, the invention depends on the vehicle headlamp to carry out auxiliary lighting, can automatically adapt to the switching of strong light/weak light, and does not need to additionally arrange a light source.

Description

Photocatalyst component

Technical Field

The invention belongs to the field of automobile parts and air purification, and particularly relates to a photocatalyst component used in a vehicle.

Background

The photocatalyst is a general name of a photo-semiconductor material represented by nano titanium dioxide and having a photocatalytic function, is coated on the surface of a base material, can effectively degrade toxic and harmful gases in the air under the action of ultraviolet light and visible light, and is widely applied to the field of purification of the environment in a vehicle. The catalytic effect of the photocatalyst depends on the illumination environment, the catalytic effect of the photocatalyst is ensured by additionally arranging a light source to irradiate the surface of the photocatalyst in the weak light environment in the prior art, and when strong light/weak light is switched (for example, vehicles enter and exit a tunnel), how to keep the stability and uniformity of the catalytic effect of the photocatalyst under the condition of not additionally arranging the light source becomes a technical problem to be solved urgently.

Disclosure of Invention

In order to solve the above problems, the present invention provides a photocatalyst assembly, comprising:

the photocatalyst element comprises a substrate, a photocatalyst material coated on the substrate, and at least two light intensity sensors arranged at different positions on the surface of the substrate;

a light guide element having a plurality of optical cables composed of a plurality of light guide fibers, each optical cable containing the same number of light guide fibers, each optical cable having a light introduction end and a light emission end, wherein the plurality of light introduction ends are uniformly arranged at the same latitude on the peripheral surface of a reflector of a headlamp of a vehicle, so that the amount of light of the headlamp introduced into each of the introduction ends is the same; the light emitting ends are uniformly arranged above the photocatalyst element in quantity, so that the light guided from the headlamp irradiates on the photocatalyst element, and the light quantity emitted by each light emitting end is the same;

the actuating element comprises an actuator and at least one semitransparent light shielding sheet driven by the actuator, the light shielding sheet is positioned between the light emitting end and the photocatalyst element, and the light shielding sheet partially shields the light emitted by the light emitting end when being driven to move, so that areas with different illumination intensities are formed on the photocatalyst element;

and the control element is in signal connection with the vehicle control unit, the light intensity sensor and the actuating element and is used for acquiring the working mode of a vehicle headlamp and the illumination intensity of different positions of the photocatalyst element and controlling the operation of the actuator according to the acquired illumination intensity: the control knob of present headlight is in AUTO shelves, the vehicle gets into the lighting environment of low light from the lighting environment of highlight, the headlight can be automatic to be opened, the light ray of headlight is introduced the light induction end of leaded light component and is transmitted light to emit the end and shine photocatalyst element, because under the low light environment, the difference of the photic intensity of different positions is especially obvious in the car, and the influence of differential photic illumination to photocatalyst element is more outstanding, this moment, in order to guarantee the stability and the even of photocatalyst element's catalytic effect, the photic intensity in the different regions of light intensity sensor monitoring photocatalyst element, control element control actuator drives the light-shielding piece and removes the top that the photic intensity is greater than the region of threshold value on photocatalyst element, make the light that the light of this region emits the end and emit sheltered from.

Preferably, the low-light environment is a tunnel.

Preferably, the photocatalyst material is a dopant mainly containing nano titanium dioxide.

By the invention, even if different areas of the photocatalyst element are illuminated by weak light with different illumination intensities, the overall illumination intensity of the photocatalyst element can be ensured to be consistent under the auxiliary illumination of the light guide element, so that the stability and uniformity of the catalytic effect of the photocatalyst element are ensured; in addition, the invention depends on the vehicle headlamp to carry out auxiliary lighting, can automatically adapt to the switching of strong light/weak light, and does not need to additionally arrange a light source.

Drawings

Fig. 1 shows a schematic diagram of the present application.

Detailed Description

The structure of the present system and the functions performed are described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the photocatalyst member includes:

a photocatalyst element 1 including a substrate, a photocatalyst material coated on the substrate, and at least two light intensity sensors 2 installed at different positions on the surface of the substrate;

a light guide element 3 having a plurality of optical fiber cables composed of a plurality of light guide fibers, each optical fiber cable containing the same number of light guide fibers, each optical fiber cable having a light introduction end 4 and a light emitting end 7, wherein the plurality of light introduction ends 4 are uniformly arranged in the same latitude on the circumferential surface of a reflector 6 of a vehicle headlamp 5, so that the amount of light of the headlamp 5 introduced into each light introduction end 4 is the same; the plurality of light emitting ends 7 are uniformly arranged above the photocatalyst element 1 in number, so that the light guided from the headlamp 5 is irradiated onto the photocatalyst element 1, and the light quantity emitted by each light emitting end 7 is the same;

an actuator, including an actuator (not shown) and at least one translucent light shielding sheet 8 driven by the actuator, where the light shielding sheet 8 is located between the light emitting end 7 and the photocatalyst element 1, and the light shielding sheet 8 partially shields the light emitted from the light emitting end 7 when being driven to move, so as to form regions with different illumination intensities on the photocatalyst element 1;

and a control element 9, in signal connection with the vehicle control unit, the light intensity sensor 2 and the actuating element, for acquiring the operating mode of the vehicle headlamp 5 and the illumination intensity of different positions of the photocatalyst element 1, and controlling the operation of the actuator accordingly: when the control knob of the front headlight 5 is in AUTO gear and the vehicle enters a low-light illumination environment from a high-light illumination environment, the headlight 5 will be automatically turned on, the light of the headlight 5 is guided into the light-guiding end 4 of the light-guiding device and transmitted to the light-emitting end 7 to irradiate the photocatalyst device 1, in a low light environment such as a tunnel, the difference in light intensity at different portions in the vehicle is more significant, and the influence of the different light intensities on the photocatalyst element is more prominent, in order to ensure the stability and uniformity of the catalytic effect of the photocatalyst element 1, the light intensity sensor 2 monitors the irradiation intensity of different areas of the photocatalyst element 1, and the control element 9 controls the actuator to drive the light shielding sheet 8 to move to the upper part of the area of the photocatalyst element 1, in which the irradiation intensity is greater than the threshold value, so that the light emitted from the light emitting end 7 of the area is shielded.

It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the spirit or scope of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. Likewise, the invention encompasses any combination of features, in particular of features in the patent claims, even if this feature or this combination of features is not explicitly specified in the patent claims or in the individual embodiments herein.

Claims

1. A photocatalyst component is characterized in that,

and the control element is in signal connection with the vehicle control unit, the light intensity sensor and the actuating element and is used for acquiring the working mode of a vehicle headlamp and the illumination intensity of different positions of the photocatalyst element and controlling the operation of the actuator according to the acquired illumination intensity: the control knob of present headlight is in AUTO shelves, the vehicle gets into the lighting environment of low light from the lighting environment of highlight, the headlight can be automatic to be opened, the light ray of headlight is introduced the light introduction end of leaded light component and is transmitted light and jet out the end and shine photocatalyst element, because under the low light environment, there is the difference in the photic intensity at different positions in the car, and differential photic illuminance has the influence to photocatalyst element, this moment, in order to guarantee photocatalyst element's catalytic effect's stability and even, the different regional intensity of illumination of light intensity sensor monitoring photocatalyst element, control element control actuator drives the top that the light-shielding piece moved on photocatalyst element the region that intensity of illumination is greater than the threshold value, the light that makes this regional light jet out the end and jets out is sheltered from.

2. The apparatus of claim 1, wherein the low-light environment is a tunnel environment.

3. The photocatalyst material as set forth in claim 1, wherein the photocatalyst material is a dopant mainly composed of nano titanium dioxide.