Disclosure of utility model
Therefore, the technical problem to be solved by the utility model is to overcome the defects that the backlight module of the vehicle in the prior art needs a large installation space and the upper surface cannot be completely used as the light emitting surface, so as to provide the backlight module, the atmosphere lamp and the vehicle.
In order to solve the above problems, the present utility model provides a backlight module, which is applied to a vehicle and is suitable for being attached to an interior trim, wherein the interior trim includes one or more of an instrument panel skeleton, a sub-instrument panel skeleton, a door panel skeleton and a seat skeleton, and the backlight module includes: a plurality of optical fibers; a light source disposed at an end position of the plurality of optical fibers and adapted to irradiate the end portions of the plurality of optical fibers; the light-transmitting piece is arranged on the inner ornament, the light-transmitting piece is arranged outside the inner ornament, and the light-transmitting piece is arranged outside the passenger cabin.
Alternatively, both the reflective sheet and the light transmissive sheet are made of a flexible material.
Optionally, the reflective sheet is a PC film, and/or the transmissive sheet is a rubber sheet.
Optionally, an etched layer is provided on the circumferential side of the optical fiber.
Optionally, the portions of the plurality of optical fibers located between the reflective sheet and the transmissive sheet are arranged in parallel and spaced apart relation.
Optionally, a plurality of optical fibers are affixed to the retroreflective sheeting.
Optionally, the optical fibers are divided into a plurality of groups, the end parts of the optical fibers in each group are converged and arranged to form converging ends, the light sources are a plurality of, and the light sources are arranged in one-to-one correspondence with the converging ends of the optical fibers in the plurality of groups.
Optionally, a reflective ink layer is disposed on a surface of the reflective sheet facing the light transmitting sheet.
The utility model also provides an atmosphere lamp comprising the backlight module.
The utility model also provides a vehicle comprising the backlight module or the atmosphere lamp.
Optionally, the vehicle further comprises an instrument panel framework, and the backlight module is attached to the instrument panel framework; and/or the vehicle further comprises a sub-instrument panel framework, and the backlight module is attached to the sub-instrument panel framework; and/or the vehicle further comprises a door plate framework, and the backlight module is attached to the door plate framework; and/or the vehicle further comprises a seat framework, and the backlight module is attached to the seat framework.
The utility model has the following advantages:
By utilizing the technical scheme of the utility model, the backlight module is suitable for being attached to one or more of an instrument board framework, a secondary instrument board framework, a door plate framework and a seat framework of a vehicle, so that a backlight decoration effect is provided. The backlight module is provided with a plurality of optical fibers sandwiched between a reflective sheet and a light-transmitting sheet, and the optical fibers emit light after the light source irradiates the end portions of the optical fibers. Light emitted by the optical fiber is emitted from the light-transmitting sheet and used as a light-emitting surface, the light is reflected by the reflecting sheet, and the light reflectivity at the position of the anti-reflection sheet is increased, so that the irradiation intensity is increased. In the structure, the backlight module does not need a base, and the flaky reflective sheet and the light-transmitting sheet occupy small space and have extremely small thickness. The outer surface of the whole light-transmitting sheet can be used as a light-emitting surface after the base is canceled, the light-emitting is uniform and no bright strip exists. Therefore, the technical scheme of the utility model solves the defects that the backlight module of the vehicle in the prior art needs large installation space and the upper surface cannot be completely used as the light emitting surface.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 2 to 4, the backlight module according to the present utility model is applied to a vehicle and is adapted to be attached to an interior trim including one or more of an instrument panel skeleton, a sub-instrument panel skeleton, a door panel skeleton, and a seat skeleton. The embodiment of the backlight module includes a plurality of optical fibers 10, a light source 20, a reflective sheet 30, and a light transmitting sheet 40. Wherein the light source 20 is disposed at an end position of the plurality of optical fibers 10 and adapted to irradiate the end portions of the plurality of optical fibers 10. The reflection sheet 30 and the light transmitting sheet 40 are disposed opposite to each other, and a portion of the optical fibers 10 is sandwiched between the reflection sheet 30 and the light transmitting sheet 40, and the plurality of optical fibers 10 emit light through the light transmitting sheet 40. Further, the reflection sheet 30 and the light-transmitting sheet 40 are disposed inside the interior trim, and the light-emitting of the light-transmitting sheet 40 is directed to the interior trim surface, or the reflection sheet 30 and the light-transmitting sheet 40 are disposed outside the interior trim, and the light-emitting of the light-transmitting sheet 40 is directed to the passenger compartment.
By utilizing the technical scheme of the embodiment, the backlight module is suitable for being attached to one or more of an instrument board framework, a secondary instrument board framework, a door plate framework and a seat framework of a vehicle, so that a backlight decoration effect is provided. The backlight module is provided with a plurality of optical fibers 10 sandwiched between a reflective sheet 30 and a light-transmitting sheet 40, and the optical fibers 10 emit light after the light source 20 irradiates the ends of the optical fibers 10. Light emitted from the optical fiber 10 is emitted from the light-transmitting sheet 40 and is used as a light-emitting surface, the light is reflected by the reflecting sheet 30, and the reflectivity of the light at the light-reflecting sheet 40 is increased, so that the irradiation intensity is increased. In the structure, the backlight module does not need a base, and the flaky reflective sheet 30 and the transparent sheet 40 occupy small space and have extremely small thickness. The outer surface of the entire light-transmitting sheet 40 can be used as a light-emitting surface, and the light-emitting surface is uniform and has no bright stripes. Therefore, the technical scheme of the embodiment solves the defects that the backlight module of the vehicle in the prior art needs large installation space and the upper surface cannot be used as the luminous surface.
The backlight module is suitable for being attached to the interior trim part, and the interior trim part can be one or more of an instrument panel framework, a secondary instrument panel framework, a door panel framework and a seat framework, namely, a specific position of the backlight module can be determined by a person skilled in the art according to actual product requirements.
Further, the backlight module may be disposed on only one of the instrument panel skeleton, the sub-instrument panel skeleton, the door panel skeleton, and the seat skeleton, for example, the backlight module may be disposed on only the sub-instrument panel skeleton or only the sub-instrument panel skeleton.
Further, the backlight module may be disposed on some two of the instrument panel skeleton, the sub-instrument panel skeleton, the door panel skeleton, and the seat skeleton, for example, the backlight module is disposed on the sub-instrument panel skeleton and the sub-instrument panel skeleton.
Further, the backlight module may be disposed on some three of the instrument panel skeleton, the sub-instrument panel skeleton, the door panel skeleton, and the seat skeleton, for example, the backlight module is disposed on the sub-instrument panel skeleton, and the seat skeleton.
Further, the backlight module can be arranged in the instrument board framework, the auxiliary instrument board framework, the door plate framework and the seat framework.
Further, the backlight module of the present embodiment has two light emitting modes, one of which is that the reflective sheet 30 and the light transmitting sheet 40 are disposed inside the interior trim, i.e. the backlight module is not exposed. Light emitted from the light-transmitting sheet 40 by the optical fiber 10 forms an atmosphere lamp effect by being diffusely reflected to the interior trim; alternatively, the reflective sheet 30 and the light-transmitting sheet 40 are disposed outside the interior member, i.e., the backlight module is exposed. The light emitted from the light-transmitting sheet 40 by the optical fiber 10 is directly projected to the passenger compartment space and forms an atmosphere lamp effect.
As shown in fig. 2 and 3, the reflective sheet 30 and the light-transmitting sheet 40 are each in a sheet-like structure, and the reflective sheet 30 and the light-transmitting sheet 40 are formed in a uniform and bonded shape. The reflective sheet 30 is made of a light-impermeable material and is capable of reflecting light, and the transmissive sheet 40 is made of a light-permeable material and is capable of transmitting light.
Further, the optical fiber 10 is partially installed in the reflection sheet 30 and the light transmission sheet 40, and when the light source irradiates the end of the optical fiber 10, light is emitted from the optical fiber 10. The light emitted from the optical fiber 10 is emitted from the light-transmitting sheet 40, that is, the outer surface of the light-transmitting sheet 40 is a light-emitting surface. Meanwhile, the light emitted by the optical fiber 10 is reflected from the reflective sheet 30 and then emitted from the light-transmitting sheet 40, i.e. the reflectivity of the light at the light-transmitting sheet 40 is increased, and the illumination intensity is increased.
Alternatively, the optical fiber 10 is a glass optical fiber.
Compared with the backlight module in the prior art, the backlight module of the embodiment omits a base structure, the required installation space is greatly reduced, the thicknesses of the reflective sheet 30 and the transparent sheet 40 are very thin, and the minimum thickness is required to be only 3.5mm; on the other hand, the entire outer surface of the light-transmitting sheet 40 may be a light-emitting surface, and the plurality of optical fibers 10 may emit light uniformly, without the presence of bright stripes.
Alternatively, both the retroreflective sheeting 30 and the light transmissive sheeting 40 are square sheeting. Of course, the two shapes can be adjusted according to actual needs, for example, the two shapes can be round, polygonal and irregular.
Alternatively, the reflection sheet 30 and the light-transmitting sheet 40 in the present embodiment are each made of a flexible material. So set up for backlight unit is whole flexible, consequently backlight unit can construct the curved surface molding that is applicable to the bending over, and then satisfies 2.5D's molding demand.
Of course, the reflective sheet 30 and the transparent sheet 40 may be made of hard materials, and the backlight module is in a fixed shape.
Alternatively, the retroreflective sheeting 30 in this embodiment is a PC film. The PC film is opaque and soft in texture, acting as a reflector 30 in the backlight module.
Of course, the reflection sheet 30 is not limited to the PC film, and other soft and opaque materials may be used as the reflection sheet 30.
Alternatively, the light transmitting sheet 40 in the present embodiment is a rubber sheet. The rubber sheet is selected to be transparent rubber so that light can be emitted from the rubber sheet. The rubber sheet is soft and flexible in texture and serves as the light-transmitting sheet 40 in the backlight module.
Of course, the light-transmitting sheet 40 is not limited to a rubber sheet, and other soft and light-transmitting materials may be used as the light-transmitting sheet 40.
Optionally, an etched layer is provided on the circumferential side of the optical fiber 10. After the surface of the optical fiber 10 is etched, the entire circumferential side surface of the optical fiber 10 may emit light, not limited to the end portion of the optical fiber 10. The portion of the optical fiber 10 between the reflection sheet 30 and the light-transmitting sheet 40 can emit light, and the light is emitted from the light-transmitting sheet 40.
As shown in fig. 4, in the technical solution of the present embodiment, the portions of the plurality of optical fibers 10 between the reflection sheet 30 and the light-transmitting sheet 40 are arranged in parallel and at intervals. Specifically, fig. 4 is a schematic view of the backlight module with the light-transmitting sheet 40 removed, and as can be seen in fig. 4, the portions of the optical fibers 10 located between the light-reflecting sheet 30 and the light-transmitting sheet 40 are parallel and spaced apart, so that the optical fibers 10 can uniformly emit light between the light-reflecting sheet 30 and the light-transmitting sheet 40.
It will be appreciated by those skilled in the art that by adjusting the number and distribution density of the plurality of optical fibers 10, the light output intensity of the backlight module can be adjusted.
Optionally, the plurality of optical fibers 10 are adhered to the retroreflective sheeting by optical glue.
As shown in fig. 2 and fig. 4, the optical fibers 10 are divided into a plurality of groups, the end portions of the optical fibers 10 in each group are converged and arranged to form converging ends 11, a plurality of light sources 20 are provided, and the plurality of light sources 20 are arranged in one-to-one correspondence with the converging ends 11 of the optical fibers 10 in the plurality of groups. Further, the converging end 11 is mounted on a fixed structure of the light source 20.
As can be seen from fig. 2, the plurality of optical fibers 10 in this embodiment are divided into three groups, and each group of optical fibers 10 is bundled after aggregation. Correspondingly, the number of the light sources 20 is three, and the three light sources 20 are respectively and correspondingly arranged at the bundled ends, namely converging ends, of the three groups of optical fibers 10.
Of course, the plurality of optical fibers 10 may be divided into two or more than three groups.
For a group of optical fibers 10, after the light source 20 irradiates the ends of the optical fibers 10, the light is transmitted along the optical fibers 10, and the etched optical fibers 10 emit light, thereby achieving a uniform light emission effect.
The above structure groups the plurality of optical fibers 10, and can reduce the number of the light sources 20, thereby reducing the overall cost of the backlight module.
Optionally, the light source 20 is an LED lamp.
Optionally, the surface of the reflective sheet 30 facing the light transmitting sheet 40 is provided with a reflective ink layer. The reflective ink layer can enhance the reflectivity of the surface of the retroreflective sheeting 30.
According to the above structure, the manufacturing steps of the backlight assembly of the present embodiment are:
Step 1: etching the optical fibers 10 to enable the whole optical fibers 10 to emit light uniformly, and bundling one ends of the optical fibers 10 to be mounted on a fixed structure of the light source 20;
Step 2: spraying reflective ink on the upper surface of the PC film (namely the reflective sheet 30) to enhance the reflectivity of the upper surface of the reflective sheet 30;
Step 3: adhering the etched optical fiber 10 to the PC membrane with optical glue at equal intervals;
Step 4: placing the PC film sheet adhered with the optical fiber 10 into a mold with a specific shape, pouring liquid flexible resin rubber into the mold, and cooling in a low-temperature environment (namely forming a light-transmitting sheet 40);
step 5: and taking out the cooled semi-finished product, and fixing the LED lamp at one end of the optical fiber 10.
The application also provides an atmosphere lamp, which comprises the backlight module.
The application also provides a vehicle, which comprises the backlight module or the atmosphere lamp.
The atmosphere lamp can be used in various light emitting structures such as a headlight, a tail lamp, and an atmosphere lamp of a vehicle.
Optionally, the vehicle is a new energy electric vehicle.
Further, the vehicle comprises an instrument board framework, and the backlight module is adhered to the instrument board framework to provide a backlight decoration effect for the instrument board. The backlight module can be adhered to the inner side of the instrument board framework, and light emitted by the backlight module is diffusely reflected to the instrument board framework to form an atmosphere lamp effect; or the backlight module can be adhered to the outer surface of the instrument board framework, and light emitted by the backlight module is directly projected to the passenger cabin space to form an atmosphere lamp effect.
Further, the vehicle comprises a sub-instrument panel framework, and the backlight module is adhered to the sub-instrument panel framework to provide a backlight decoration effect for the sub-instrument panel. The light module can be adhered to the inner side of the auxiliary instrument board framework, and light emitted by the backlight module is diffusely reflected to the auxiliary instrument board framework to form an atmosphere lamp effect; or the backlight module can be adhered to the outer surface of the auxiliary instrument board framework, and light emitted by the backlight module is directly projected to the passenger cabin space to form an atmosphere lamp effect.
Further, the vehicle further comprises a door plate framework, and the backlight module is adhered to the door plate framework to provide a backlight decoration effect for the inner side of the door plate. The light module can be stuck on the inner side of the door plate framework, and light emitted by the backlight module is diffusely reflected to the door plate framework to form an atmosphere lamp effect; or the backlight module can be adhered to the outer surface of the door plate framework, and light emitted by the backlight module is directly projected to the passenger cabin space to form an atmosphere lamp effect.
Further, the vehicle further comprises a seat framework, and the backlight module is adhered to the seat framework to provide a backlight decoration effect for the seat. The light module can be adhered to the inner side of the seat framework, and light emitted by the backlight module is diffusely reflected to the seat framework to form an atmosphere lamp effect; or the backlight module can be adhered to the outer surface of the seat framework, and the light emitted by the backlight module is directly projected to the passenger cabin space to form an atmosphere lamp effect.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.