KR102059484B1 - Cover plate assembly for vehicle - Google Patents

Abstract

The present invention relates to a vehicle cover plate assembly providing sufficient durability without interfering with sensing of a sensor and capable of being matched to a vehicle exterior design. The cover plate assembly may include a cover plate including a first area and a second area having different external light reflectances and having a first surface and a second surface facing each other, wherein the first surface faces outward.

Description

Cover plate assembly for vehicle {Cover plate assembly for vehicle}

The disclosed embodiments relate to a vehicle cover plate assembly.

Various types of sensors are mounted in a vehicle to implement various smart functions imparted to a vehicle such as an advanced driver assistant system (ADAS), autonomous driving function, and / or object recognition function.

The sensors may recognize objects or acquire information by radio waves and / or light waves, and for example, radar sensors, imaging sensors, and / or lidar sensors may be used.

On the other hand, since automobiles are likely to be exposed to the external environment, these sensors may be damaged under the external environment, and the presence of a cover plate for protecting the sensor is required to prevent this.

As described above, the cover plate for protecting the sensor should not only have durability enough to protect the sensor at least in an external environment, but also need to be provided so as not to interfere with sensing.

In addition, the exterior of the vehicle is implemented by various combinations of metal and plastic, such as exterior and / or interior, it is necessary to ensure that the cover plate is matched to the exterior design of the vehicle so as not to give a sense of heterogeneity.

An embodiment of the present invention is to solve the above problems, limitations and / or needs, to provide a cover plate assembly for a vehicle that provides sufficient durability without interfering with the sensing of the sensor, and also matches the vehicle exterior design It has a purpose.

In order to achieve the above object, an embodiment of the present invention includes a first region and a second region having different external light reflectances, and have first and second surfaces opposed to each other, and the first surface. And a cover plate facing outward, wherein the cover plate is a base substrate adjacent to the first surface and a first component that is transparent to the direction of the second surface from the base substrate and is opaque. It is possible to provide a cover plate assembly comprising a functional film provided such that the second component has a concentration gradient opposite to each other in the thickness direction.

The content of the first component may decrease with distance from the base substrate, and the content of the second component may increase with distance from the base substrate.

The first component is selected from the group consisting of SiOx (x≥1), SiNx (x≥1), MgF ₂ , CaF ₂ , Al ₂ O ₃ , SnO ₂ , ITO, IZO, ZnO, and In ₂ O ₃ It may include at least one material.

The second component is selected from the group consisting of Fe, Co, V, Ti, Al, Ag, Si, Cr, Mo, Ge, Y, Zn, Zr, W, Ta, Cu, Pt, In, Mg, and Ca It may include at least one material.

The functional layer may include a first functional layer positioned in the first region and a second functional layer positioned in the second region.

The thickness of the first functional film may be thicker than the thickness of the second functional film.

The second functional film may have a greater content of the second component than the first functional film.

According to the embodiments of the present invention as described above, the external light reflecting film, that is, the film showing the metal texture and the external light absorbing film, that is, the film showing the black, is disposed adjacent to each other to take a patterned structure, thereby making The pattern matching with other members can be improved, and the reduction in sensing sensitivity by the film showing the metal texture can be minimized. In addition, the external light reflecting film and the external light absorbing film can be formed at the same time, further increasing the productivity of the process, it is possible to achieve low-cost production of the cover plate.

1 is a view showing the side of the cover plate assembly according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a portion of the cover plate shown in FIG. 1.
3 is an enlarged cross-sectional view illustrating an embodiment of portion A of FIG. 2.
4 is an enlarged cross-sectional view illustrating an embodiment of part B of FIG. 2.
5 is a partial cross-sectional view showing an embodiment of the first functional film and the second functional film.
Fig. 6 is a diagram showing concentration gradients of the first component and the second component of the functional film.
FIG. 7 is an enlarged cross-sectional view illustrating another embodiment of part A of FIG. 2.
FIG. 8 is an enlarged cross-sectional view illustrating another embodiment of part B of FIG. 2.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. Effects and features of the present invention, and methods of achieving them will be apparent with reference to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various forms.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same or corresponding components will be denoted by the same reference numerals, and redundant description thereof will be omitted. .

In the following examples, the singular forms "a", "an" and "the" include plural forms unless the context clearly indicates otherwise.

In the following examples, the terms including or having have meant that there is a feature or component described in the specification and does not preclude the possibility of adding one or more other features or components.

In the following embodiments, when a part such as a film, a region, a component, or the like is on or on another part, not only is it directly above the other part, but also another film, a region, a component, etc. is interposed therebetween. It also includes cases where there is.

In the case where an embodiment may be implemented differently, a specific process order may be performed differently from the described order. For example, two processes described in succession may be performed substantially simultaneously or in the reverse order of the described order.

In the drawings, components may be exaggerated or reduced in size for convenience of description. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, and therefore the following embodiments are not necessarily limited to those shown.

1 schematically illustrates a configuration of a vehicle cover plate assembly according to an embodiment.

Referring to FIG. 1, a vehicle cover plate assembly according to an embodiment may include a cover plate 1.

The cover plate 1 is positioned to face the sensor 2 and may function to protect the sensor 2. Therefore, the cover plate 1 may be provided with durability to withstand external shocks, wind, water and the like. In addition, the cover plate 1 may be provided to have a design having a sense of homogeneity with other adjacent interior materials and / or exterior materials in order to function as a device for hiding the sensor 2.

The sensor 2 may be a sensor capable of acquiring various information inside and / or outside the vehicle. According to an embodiment, the sensor 2 may be mounted at the front of the vehicle and may be provided with an environment, a person, an object, and / or an exterior of the vehicle. Sensors that can recognize other vehicles can be used. As such a sensor 2, for example, a radar sensor may be used, but is not limited thereto, and an imaging sensor such as a lidar sensor or a visible, infrared, and / or ultraviolet camera may be used.

As shown in FIG. 1, the sensor 2 may receive a sensing signal by a range of the sensing angle 21. For example, in the case of a radar sensor, the sensing angle 21 may be +/- 10 degrees or +/- 45 degrees.

Meanwhile, the cover plate 1 may include a first surface 1001 and a second surface 1002 facing each other. The second surface 1002 may be an inner facing surface facing the sensor 2, and the first surface 1001 may be an outer facing surface opposite thereto. The first surface 1001 may be a surface facing the outside of the vehicle, but is not limited thereto, and may be a surface facing the vehicle's boarding space. The second surface 1002 may be a surface facing an interior space of the vehicle, that is, a space in which components are mounted.

The cover plate 1 may include a first region 101 and a second region 102 having different external light reflectances.

According to an embodiment, the external light reflectance of the first region 101 may be lower than the external light reflectance of the second region 102. According to one embodiment, the cover plate 1 may be located adjacent to the radiator grille of the motor vehicle. Accordingly, the cover plate 1 may have a pattern that matches the pattern of the grille, and the first region 101 and the second region 102 may be determined correspondingly. According to an embodiment, the first region 101 may be an opaque region, that is, a black region having low external light reflectance, for example. According to an embodiment, the second region 102 may be a region having a relatively high external light reflectance, for example, a metal texture. Accordingly, when the cover plate 1 is viewed from the outside of the vehicle, since the second region 102 is located to correspond to the metal of the radiator grille and the first region 101 is located to correspond to the gap between the radiator grille metals, the cover plate is located. It can be appreciated that (1) is the same and / or similar to the radiator grille.

According to one embodiment, the first region 101 may have a relatively high transmittance of radio waves and / or light waves compared to the second region 102. Accordingly, the sensor 2 and the cover plate 1 may be disposed such that the sensing angle 21 of the sensor 2 overlaps at least the first region 101. To this end, the relative position and / or relative distance between the sensor 2 and the cover plate 1 can be adjusted.

2 is a cross-sectional view showing in more detail an embodiment of the cover plate 1 as described above.

Referring to FIG. 2, the cover plate 1 may include a base substrate 11 and a functional film 12.

The base substrate 11 may be adjacent to the first surface 1001. According to an embodiment, one surface of the base substrate 11 may be the first surface 1001.

Such base substrate 11 may use mechanical strength, flame resistance, abrasion resistance, heat resistance, impact resistance and / or chemical resistance plastics, for example polycarbonate and / or acrylic materials. The base substrate 11 may be a substrate made of a transparent material having high external light transmittance.

According to FIG. 2, the base substrate 11 is formed of a single member, but the present invention is not necessarily limited thereto, and although not illustrated in the drawing, the base substrate 11 may be formed on the outside of the base substrate 11, that is, the first surface 1001. At least one or more films may be further formed in a direction to have a composite laminate structure. These films can be polished to enhance the appearance and / or luxury of a film, to prevent scratches from impact, and / or to improve water repellency to enhance the external environment such as snow, rain, and pollution. A film or the like capable of preventing contamination by may be used.

On the opposite side of the first surface 1001 of the base substrate 11, that is, in the direction of the second surface 1002, the first base surface 111 corresponding to the first region 101 and the second region ( Second base surface 112 corresponding to 102 may be provided.

According to the exemplary embodiment shown in FIG. 2, the first base surface 111 is a flat surface, and the second base surface 112 is a surface formed in the shape of a groove drawn toward the first surface 1001. Can be. The groove may be formed in a wedge shape. However, the present invention is not necessarily limited thereto, and the second base surface 112 may also be a flat surface extending in the same manner as the first base surface 111, or the second base surface 112 may be a flat surface. It can be a groove having.

According to one embodiment, the thickness of the base substrate 11 in the region where the first base surface 111 is located may be thicker than the thickness of the base substrate 11 in the region where the second base surface 112 is located. Accordingly, in the second region 102, it is possible to reduce the disturbing factors such as the radio wave and / or light transmittance decrease and / or interference of the aforementioned sensor 2. However, the present invention is not limited thereto, and in the case where the interference factor of radio wave and / or light wave sensing is small in the second region 102, the thickness of the base substrate 11 and the second base in the region where the first base surface 111 is located are located. The thickness of the base substrate 11 may be the same in the region where the surface 112 is located.

The functional layer 12 may be formed on the first base surface 111 and the second base surface 112 as described above.

In example embodiments, the functional layer 12 may include a first functional layer 121 formed adjacent to the first base surface 111 and a second functional layer formed adjacent to the second base surface 112. And 122. The first functional layer 121 may have a lower external light reflectance and an opacity than the second functional layer 122. Accordingly, the first region 101 may be an opaque region, that is, a black region having low external light reflectance, by the first functional layer 121. According to an embodiment, the second functional layer 122 may be a region having a relatively high external light reflectance, for example, a metal texture, by the second functional layer 122.

The second base surface 112 on which the second functional film 122 is formed may have grooves having various angles and / or shapes so as to improve pattern matching with other areas adjacent to the cover plate 1 when viewed from the outside. It may include, and by implementing a variety of external light reflection effect of the second functional film 122 formed according to this, it is possible to implement a variety of patterns when viewed from the outside.

Optionally, the protective layer 14 may be further provided on the functional layer 12. As the protective layer 14, an organic insulating layer may be used, and an acrylic resin may be used. However, the present invention is not limited thereto, and mechanical strength, flame resistance, abrasion resistance, heat resistance, impact resistance and / or chemical resistance plastic may be used, and a black paint film may be used. The black paint film may be a heat resistant material. By the protective layer 14, the functional layer 12 may be protected from heat and / or contamination generated inside the vehicle.

3 is an enlarged cross-sectional view illustrating an embodiment of portion A of FIG. 2, and FIG. 4 is an enlarged cross-sectional view of an embodiment of portion B of FIG. 2.

3 and 4, the first functional layer 121 according to an embodiment has a first thickness t1, and the second functional layer 122 according to an embodiment has a second thickness ( t2). In this case, the first thickness t1 may be thicker than the second thickness t2 so that the external light transmittance in the first region 101 may be lower than the external light transmittance in the second region 102. Can be. In addition, by forming the second thickness t2 of the second functional film 122 as thin as possible, the second functional film 122 interferes with and / or interferes with sensing radio waves and / or light waves of the sensor 2. It can minimize the effect of causing.

As described above, the functional layer 12 according to the exemplary embodiment may have a concentration gradient in which the first component, which is a transparent material, and the second component, which is an opaque material, are opposite to each other in the thickness direction, as shown in FIGS. 5 and 6. It may be provided to have.

At this time, the content of the first component decreases as it moves away from the base substrate 11, and the content of the second component increases as it moves away from the base substrate 12.

That is, as shown in FIGS. 5 and 6, the region adjacent to the base substrate 11 has a high content of the first component (I), and the region far from the base substrate 11 has a high content of the second component (II). To be high.

The first component (I) and / or the second component (II) may have a concentration gradient while plotting a cubic function graph as shown in FIG. 6 in relation to the thickness and content of the functional film 12, Not necessarily limited thereto, the thickness and content may have a concentration gradient while drawing a graph of a linear function. The first component (I) and the second component (II) may have concentration gradients inversely proportional to each other.

A transparent material may be used as the first component (I), and SiOx (x≥1), SiNx (x≥1), MgF ₂ , CaF ₂ , Al ₂ O ₃ , SnO ₂ , ITO, IZO, ZnO And, In ₂ O ₃ It may include at least one material selected from the group consisting of.

As the second component (II), an opaque material may be used, such as Fe, Co, V, Ti, Al, Ag, Si, Cr, Mo, Ge, Y, Zn, Zr, W, Ta, Cu, Pt It may include at least one material selected from the group consisting of In, Mg, and Ca.

The functional film 12 thus formed gradually changes to an opaque material as the thickness of the transparent material gradually increases, so that the interface reflection caused by the difference in refractive index is suppressed, and the functional film 12 is formed from the bottom of the base substrate 11. The light incident through 12 may be absorbed by the functional layer 12.

Accordingly, when the first functional film 121 having both the first component I and the second component II formed thereon is visible from the outside of the base substrate 11, external light may not be reflected and appear black.

Meanwhile, since the content of the second component (II) is relatively higher than that of the first component (I), the second functional layer 122 may reflect external light when viewed from the outside of the base substrate 11 to exhibit a metal texture. have.

The functional film 12 can be formed on the base substrate 11 by co-depositing the first component (I) and the second component (II) so that their contents are opposite to each other. The first functional film 121 and the second functional film 122 as shown in FIG. 5 may be formed at the same time.

That is, as shown in FIG. 6, the first functional film 121 may be formed in the co-deposition process of the first component (I) and the second component (II) opposite to each other. The second region, that is, the region in which the second functional layer 122 is formed, is shielded and / or masked so that the second functional layer is not deposited, and the second functional layer 122 is removed by removing the shielding and / or masking later in the deposition. ) May also be formed. Accordingly, the second functional layer 122 may be formed in a region having a high content of the second component (II) and a low content of the first component (I).

According to one embodiment, as described above, the second component (II) is an opaque material such as Fe, Co, V, Ti, Al, Ag, Si, Cr, Mo, Ge, Y, Zn, Zr, W It may comprise at least one material selected from the group consisting of Ta, Cu, Pt, In, Mg, and Ca, the second component (II) may comprise a material having a high external light reflectance, such as a metal As a result, the second functional film 122 having a high content of the second component (II) may reflect external light to give a metallic texture when viewed from the outside. In this case, as shown in FIG. 6, the second functional film 122 is formed in the latter part of the film formation by the co-deposition of the first component (I) and the second component (II). The film 121 may be relatively thin as compared to the film 121, and accordingly, propagation and / or light wave interference and / or interference of the sensor by the second functional film 122 may be small.

As described above, according to the exemplary embodiment of the present invention, the external light reflecting film, that is, the film showing the metal texture and the external light absorbing film, that is, the film showing black, is disposed adjacent to each other and is patterned so as to have a structure with other members adjacent to the cover plate. Pattern matching can be improved, and a decrease in sensing sensitivity due to a film showing a metal texture can be minimized. In addition, the external light reflecting film and the external light absorbing film can be formed at the same time, further increasing the productivity of the process, it is possible to achieve low-cost production of the cover plate.

7 and 8 are enlarged cross-sectional views illustrating another example of part A and part B of FIG. 2, respectively.

According to the exemplary embodiment illustrated in FIGS. 7 and 8, an optical layer 15 may be further included between the base substrate 11 and the functional layer 12.

The optical film 15 may function to enhance or suppress the glossiness of the functional film 12. The optical film 15 may be made of urethane or acrylic, which is a material cured by ultraviolet rays or heat.

The optical film 15 may have a gloss effect or a matte effect according to its components, and for this purpose, a gloss or matte paint may be used in addition to the above materials.

The optical film 15 may also function to improve the bonding force of the functional film 12 deposited on the base substrate 11. To this end, the optical film 15 may use a primer paint.

The cover plate assembly according to the embodiments of the present invention described above may be used as a cover plate assembly for protecting the sensor as described above, but is not limited thereto, and the effect of the functional film of the cover plate may be obtained. As long as it can, it can be used as various cover plate assemblies. For example, it can be used as a member for simply improving pattern matching with a peripheral member without protecting the sensor, and can be used as a cover plate of various parts of a vehicle.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Could be. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

1: cover plate
2: sensor
11: base substrate
12: functional film
101: first region
102: second area
121: first functional film
122: second functional film

Claims (7)

A first region and a second region having different external light reflectances, having first and second surfaces opposed to each other, the first surface comprising an outer facing cover plate,
The cover plate,
A base substrate adjacent the first surface; And
And a functional film formed adjacent to the direction of the second surface from the base substrate, wherein the first component, which is a transparent material, and the second component, which is an opaque material, have concentration gradients opposite to each other in the thickness direction.
The first component is selected from the group consisting of SiOx (x≥1), SiNx (x≥1), MgF ₂ , CaF ₂ , Al ₂ O ₃ , SnO ₂ , ITO, IZO, ZnO, and In ₂ O ₃ A cover plate assembly comprising at least one material. The method of claim 1,
And the content of the first component decreases as it moves away from the base substrate, and the content of the second component increases as it moves away from the base substrate. delete A first region and a second region having different external light reflectances, having first and second surfaces opposed to each other, the first surface comprising an outer facing cover plate,
The cover plate,
A base substrate adjacent the first surface; And
And a functional film formed adjacent to the direction of the second surface from the base substrate, wherein the first component, which is a transparent material, and the second component, which is an opaque material, have concentration gradients opposite to each other in the thickness direction.
The second component is selected from the group consisting of Fe, Co, V, Ti, Al, Ag, Si, Cr, Mo, Ge, Y, Zn, Zr, W, Ta, Cu, Pt, In, Mg, and Ca A cover plate assembly comprising at least one material. delete A first region and a second region having different external light reflectances, each having a first surface and a second surface opposed to each other, the first surface comprising an outer facing cover plate,
The cover plate,
A base substrate adjacent the first surface; And
And a functional film formed adjacent to the direction of the second surface from the base substrate, wherein the first component, which is a transparent material, and the second component, which is an opaque material, have concentration gradients opposite to each other in the thickness direction.
The functional film,
A first functional film positioned in the first region; And
And a second functional film positioned in the second region.
The thickness of the first functional film is a cover plate assembly thicker than the thickness of the second functional film. The method of claim 6,
And the second functional film has a greater content of the second component than the first functional film.

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