CN104074416B - A car door handle structure with light guide lamp - Google Patents

Abstract

The invention discloses an automobile door handle structure with a light guide lamp, which comprises a door handle body, a light source, a diffusion film, a light guide plate, a reflection film and a light transmitting mask, wherein the reflection film is attached to the bottom surface of the light guide plate; the light source is arranged at two ends of the light guide plate, and the light-transmitting face mask is arranged outside the door handle body and is matched with the door handle body in structure. The invention has the beneficial effects that: when the automobile is in a dark environment, the light-transmitting face mask hides the backlight source, and the backlight source and the backlight position can be displayed only when the automobile is lightened. When the LED lamp is lightened, the LED light source converts a point light source into a surface light source through the light guide plate, the light loss is reduced through the reflection film, the brightness is increased, the light source is uniformly diffused through the diffusion film, and then the function of indicating at night is realized.

Description

A car door handle structure with light guide lamp

technical field

The invention relates to a car door handle structure, in particular to a car door handle structure with a light guide lamp.

Background technique

With the overall development of the automobile, especially the rapid development of the overall shape of the automobile and the application of electronic technology in recent years, the shape and function of the door handle have also become increasingly diversified and intelligent. Vehicle is driven outside, often needs parking to handle affairs, if there is parking lot nearby, car can be directly parked in parking lot, if there is no parking lot, then car can only be parked in relatively safe place. However, no matter where the car is parked, if the parking place is well-lit or has sufficient lighting, it is still convenient for the driver and passengers to observe the surrounding environment of the vehicle body, park safely and get off the car smoothly or get on the car smoothly and start safely; if If the parking place is dim or dark, the driver and passengers cannot clearly observe the surrounding environment of the vehicle body, which not only makes parking and starting unsafe, but also makes it difficult to get on and off the car, and it is inevitable to accidentally step on a pothole and hurt your feet. or step on the dirty shoes and feet, and what's more, bring the dirt into the car and pollute the vehicle, especially before getting on the car, because the lights in the car have not been turned on, so the above embarrassing things happen frequently. Moreover, when the driver is turning on a dark or dark road section, even if the front and rear lights are turned on, the lights are all horizontal and straight, which still cannot make the driver see the ground conditions in the steering direction and the surrounding environment of the vehicle body. The vision is poor, especially when there are many pedestrians or bicycles or there are many things parked on the roadside, collisions and scratches are very easy to occur.

At present, most cars are not equipped with door handle lights. Even if they are equipped with door handle lights, they are illuminated directly by LEDs, which do not have the effect of uniform light transmission and hidden light sources. Therefore, it is necessary to provide a car door handle structure that can be illuminated, which can illuminate the ground conditions and the environment around the vehicle body when getting on and off the car, so as to bring convenience to the vehicle driver and passengers.

Contents of the invention

The technical problem to be solved by the present invention is to provide an automobile door handle structure with a light guide lamp which not only satisfies the uniformity of the backlight but also realizes the effect of hiding the light source.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a car door handle structure containing a light guide lamp, including a door handle body, a light source, a diffusion film, a light guide plate, a reflective film, a light-transmitting mask, and the reflective The film is attached to the bottom surface of the light guide plate, and the diffusion film is attached to the top surface of the light guide plate. The light guide plate is waist-shaped, and a tooth-shaped or granular reflective surface is arranged on the waist surface of the light guide plate. According to the distance from the light source The light source is arranged at both ends of the light guide plate; the light-transmitting mask is arranged outside the door handle body to match the structure of the door handle body.

The beneficial effect of the present invention is that: the light source enters the light guide plate from one side or both sides, and the light is reflected to the top surface of the light guide plate through the toothed or granular reflective surface on the bottom surface of the light guide plate, and the waist-shaped structure of the light guide plate can effectively prevent light Concentration, resulting in local areas being too bright and uneven brightness; the toothed or granular reflective surface on the waist surface can make more light reflected on the top surface of the light guide plate at a relatively vertical angle; because the light emitted by the light source is in the light guide plate Diffusion, the closer to the light source, the more reflected light, and vice versa, the tooth-shaped and granular reflective surfaces on the waist surface of the light guide plate are used as complements to achieve uniform reflection. The light emitted from the bottom surface of the light guide plate is reflected back to the top surface of the light guide plate through the reflective film, thereby reducing brightness loss; the light emitted from the top surface of the light guide plate is diffused outward in the form of diffuse reflection through the diffusion film, thereby achieving a backlight with uniform brightness. Set the light-transmitting mask on the outside of the door handle body, and use the difference in brightness between the inside of the door handle and the outside of the door handle to display the backlight and the position of the backlight only when the light is on, so as to realize the effect of hiding the light source and realize night indication.

Description of drawings

FIG. 1 is a schematic structural diagram of a backlight source according to an embodiment of the present invention.

Fig. 2 is a structural schematic diagram of an automobile door handle according to an embodiment of the present invention.

Label description:

1. Diffusion film; 2. Light guide plate; 3. Light source; 4. Reflective film; 5. Toothed or granular reflective surface;

6. Door handle body; 7. PCB board with LED light source; 8. Door handle back cover; 9. Translucent mask.

detailed description

In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

The most critical idea of the present invention is: reflect the light to the top surface of the light guide plate 2 through the toothed or granular emission surface 5 on the waist surface of the bottom surface of the light guide plate 2, and reflect the light emitted from the bottom surface of the light guide plate 2 back to the light guide plate through the reflective film 4 2 top surface to reduce brightness loss; through the diffusion film 1, the light on the top surface of the light guide plate 2 is diffused outward in the form of diffuse reflection, thereby achieving a backlight with uniform brightness. The light-transmitting mask 9 is arranged on the outside of the door handle body 6, and the difference in brightness between the inside of the door handle and the outside of the door handle is used to realize the effect of hiding the light source, thereby realizing nighttime indication.

Please refer to Fig. 1 and Fig. 2, a kind of car door handle structure that contains light guide lamp, comprises door handle body 6, light source 3, diffuser film 1, light guide plate 2, reflective film 4, light-transmitting mask 9, described reflection The film 4 is attached to the bottom surface of the light guide plate 2, and the diffusion film 1 is attached to the top surface of the light guide plate 2. The light guide plate 2 is waist-shaped, and the waist surface of the light guide plate 2 is provided with tooth-shaped or granular reflectors. The surface 5 is arranged from sparse to dense according to the distance from the light source 3; The external structure of the door handle body 6 is compatible.

It can be seen from the above description that the beneficial effect of the present invention is that: the light source 3 enters the light guide plate 2 from one side or both sides, and the light is reflected to the top surface of the light guide plate 2 through the toothed or granular emitting surface 5 on the bottom surface of the light guide plate 2, The waist-shaped structure of the light guide plate can effectively prevent light from concentrating, resulting in excessively bright local areas and uneven brightness; the tooth-shaped or granular reflective surface 5 on the waist surface can make more light reflected on the light guide plate 2 at a relatively vertical angle Top surface; because the light emitted by the light source 3 diffuses in the light guide plate 2, the closer the light source 3 is to the light reflected, the more light is reflected, and vice versa. The tooth-shaped and granular reflective surface 5 on the waist surface of the light guide plate 2 is used according to the thinning method. The dense arrangement is complementary to achieve the purpose of uniform reflection. The light emitted from the bottom surface of the light guide plate 2 is reflected back to the top surface of the light guide plate 2 through the reflective film 4, thereby reducing brightness loss; the light emitted from the top surface of the light guide plate 2 is diffused outward in the form of diffuse reflection through the diffusion film 1, thereby achieving brightness Uniform backlight3. Set the light-transmitting mask 9 outside the door handle body 6, and use the difference in brightness between the inside of the door handle and the outside of the door handle to display the backlight and the position of the backlight only when the light is on, so as to realize the effect of hiding the light source, thereby realizing night indication.

Further, the reflective film 4 , the light guide plate 2 and the diffusion film 1 are located between the door handle rear cover 8 and the door handle body 6 .

Further, the light source 3 is an LED light source.

From the above, it can be seen that the door opening state can be indicated by changing the color of the light.

Further, the reflective film 4 is a specular reflective film 4 .

Further, the light-transmitting mask 9 is surface-treated by injection molding of dark transparent PC and UV paint.

It can be seen from the above that the door handle mask can achieve the effect of hiding the light source after the dark transparent PC injection molding and UV paint surface treatment, and the backlight and the position of the backlight can only be displayed when the light is on.

Further, the light-transmitting mask 9 is surface-treated through transparent PC injection molding and light-transmitting plating.

From the above, it can be seen that the door handle mask can achieve the effect of hiding the light source after being treated by transparent PC injection molding + light-transmitting plating, and the backlight and the position of the backlight can only be displayed when the light is on.

Please refer to Fig. 1 and Fig. 2, a kind of car door handle structure that contains light guide lamp, comprises door handle body 6, light source 3, diffusion film 1, light guide plate 2, reflective film 4, light-transmitting mask, described reflective film 4 Attached to the bottom surface of the light guide plate 2, the diffusion film 1 is attached to the top surface of the light guide plate 2, the light guide plate 2 is waist-shaped, and the waist surface of the light guide plate 2 is provided with tooth-shaped or granular reflective surfaces 5. According to the distance from the light source 3 from near to far, it is arranged from sparse to dense; the light source 3 is arranged at both ends of the light guide plate 2, and the light-transmitting mask is arranged outside the door handle body 6 to be connected with the door handle The structure of the body 6 is compatible. The reflective film 4, the light guide plate 2, and the diffusion film 1 are located between the door handle back cover 8 and the door handle body 6, and the PCB board 7 containing the LED light source is located between the bottom surface of the light guide plate 2 and the door handle back cover 8. The PCB board makes the LED light source light up, the reflective film 4 is a specular reflective film, and the light-transmitting mask 9 is treated by injection molding of dark transparent PC and surface treatment of UV paint.

Working principle: please refer to Fig. 2, when the car is in a dark environment, the light-transmitting mask 9 hides the backlight, and the backlight and the position of the backlight can only be displayed when it is lit. When turned on, the LED light source passes through the light guide plate 2 to convert the point light source into a surface light source, reduces light loss and increases brightness through the reflective film 4, and diffuses the light source 3 evenly through the diffusion film 1. The door handle body 6 and the door handle The rear cover 8 integrates parts to form a door handle assembly.

To sum up, the present invention provides a car door handle structure with a light guide lamp. When the car is in a dark environment, the light-transmitting mask hides the backlight, and the backlight and light can only be displayed when it is turned on. Backlight position. When turned on, the light source passes through the light guide plate to convert the point light source into a surface light source. The waist-shaped structure of the light guide plate can effectively prevent the light from concentrating, resulting in excessively bright local areas and uneven brightness; tooth-like or granular reflections on the waist surface The surface can make more light reflected on the top surface of the light guide plate at a relatively vertical angle; because the light emitted by the light source diffuses in the light guide plate, the closer the light source is, the more light is reflected, and vice versa. The serrated and granular reflective surfaces on the waist surface are arranged in a sparse to dense arrangement as a complement to achieve uniform reflection. The light loss is reduced by the reflective film and the brightness is increased, and the light source is evenly diffused by the diffuser film, so that the light-emitting area is large, the brightness is uniform and soft, and night indication is realized. It can also indicate the door opening status by changing the color of the light.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention.

Claims (6)

1. a kind of automobile door handle structure containing light-guiding lamp it is characterised in that：Including door handle body, light source, diffusion barrier, leaded light Plate, reflectance coating, printing opacity mask, described reflectance coating is attached at bottom surface of light guide plate, and described diffusion barrier is attached at guide-lighting plate top surface, Described light guide plate is kidney-shaped, is laid with dentation or graininess reflecting surface in the lumbar surface of light guide plate, according to from light source distance From near to remote accordingly by dilute to solid matter cloth；Described light source covers at door handle located at the two ends of light guide plate, described transparent surface Body exterior, is adapted with door handle body construction.

2. contain as claimed in claim 1 the automobile door handle structure of light-guiding lamp it is characterised in that：Described reflectance coating, leaded light Plate, diffusion barrier are located between door handle bonnet and door handle body.

3. contain as claimed in claim 1 the automobile door handle structure of light-guiding lamp it is characterised in that：Described light source is LED light Source.

4. contain as claimed in claim 1 the automobile door handle structure of light-guiding lamp it is characterised in that：Described reflectance coating is minute surface Reflectance coating.

5. contain as claimed in claim 1 the automobile door handle structure of light-guiding lamp it is characterised in that：Described printing opacity mask passes through Dark Clear PC injection and UV paint surface treatment.

6. contain as claimed in claim 1 the automobile door handle structure of light-guiding lamp it is characterised in that：Described printing opacity mask passes through Transparent PC injection and printing opacity plate surface are processed.