Automobile ceiling lamp assembly and automobile

Abstract

The invention provides an automobile ceiling lamp assembly and an automobile, and belongs to the technical field of automobile parts, the automobile ceiling lamp assembly comprises a panel, the panel comprises a light-proof panel main body, a light-transmitting illumination lens and a light-transmitting pattern part, the inner side of the panel main body is provided with a first accommodating cavity, and the position of the first accommodating cavity corresponds to the position of the light-transmitting pattern part; the backlight key module is installed in the first containing cavity, the backlight key module comprises a light guide plate and a touch control layer, and the position of the touch control layer corresponds to the position of the light-transmitting pattern part; the substrate is electrically connected with the touch control layer, an illumination light source and a pattern light source are arranged on the substrate, the illumination light source corresponds to the illumination lens in position, and the light emitting direction of the pattern light source faces the side face of the light guide plate and is converted into surface light through the light guide plate to be emitted out of the light-transmitting pattern part; and the rear cover is connected to the panel, the substrate is clamped between the rear cover and the panel, and the cavity opening of the first accommodating cavity is sealed. According to the automobile ceiling lamp assembly, the automobile ceiling lamp assembly is thinned.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts and relates to an automobile dome light assembly, in particular to an automobile with the automobile dome light assembly. Background Art

[0002] In the prior art, the core functions of the ceiling light or map light assembly on a car mainly include lighting function, various switch control functions, switch pattern backlight function, and switch status indication function. Some ceiling light assemblies with more functions also include microphones, speakers, and SOS buttons. The more functions there are, the larger the size of the ceiling light assembly is and the higher the cost is. At a time when energy conservation and cost reduction are advocated, how to reduce the size and cost of ceiling lights is something that urgently needs to be studied. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems in the prior art and to provide a car ceiling light assembly with a thin design and reduced manufacturing cost.

[0004] The purpose of the present invention can be achieved through the following technical solutions: A car ceiling light assembly, comprising:

[0005] The panel comprises a light-proof panel body, a light-transmitting lighting lens and a light-transmitting pattern portion, wherein a first accommodating cavity is arranged inside the panel body, and a position of the first accommodating cavity corresponds to a position of the light-transmitting pattern portion;

[0006] A backlight key module is installed in the first accommodating cavity, and the backlight key module includes a light guide plate and a touch layer, wherein the position of the touch layer corresponds to the position of the light-transmitting pattern portion;

[0007] The substrate is electrically connected to the touch layer, wherein an illumination light source and a pattern light source are arranged on the substrate, and the illumination light source corresponds to the position of the illumination lens, and the light of the pattern light source is emitted toward the side of the light guide plate and converted by the light guide plate into surface light emission to emit out of the light-transmitting pattern portion;

[0008] The back cover is connected to the panel, clamps the substrate between the back cover and the panel, and seals the cavity opening of the first accommodating cavity.

[0009] In the above-mentioned automobile ceiling light assembly, the touch layer is a touch film, which is arranged on the inner side of the panel body and is attached to the light-transmitting pattern portion.

[0010] The above-mentioned automobile ceiling light assembly also includes a light-uniforming bracket made of a milky white light-transmitting material, the outer surface shape of the light-uniforming bracket matches the inner surface shape of the panel body at the corresponding position, wherein a strip groove is provided on the light-uniforming bracket along the light emission direction of the pattern light source, and the light guide plate is embedded in the strip groove, and the groove wall of the strip groove defines the two sides of the corresponding light guide plate perpendicular to the light emission direction of the pattern light source; and the cavity wall of the first accommodating cavity defines the two sides of the corresponding light guide plate on the upper side of the pattern light source in the light generation direction.

[0011] In the above-mentioned automobile ceiling light assembly, the touch film is connected to one side surface of the light homogenizing bracket by bonding, and the light homogenizing bracket is located between the touch film and the light guide plate, wherein the trigger end on the touch film is arranged opposite to the light-transmitting pattern portion, and the electrical connection end on the touch film extends outward and extends out of the corresponding cavity opening of the first accommodating cavity, and forms a plug-in electrical connection with the connector on the substrate.

[0012] In the above-mentioned automobile ceiling light assembly, a plurality of pits for reflecting light are arranged on a surface of the light guide plate on one side facing the substrate.

[0013] In the above-mentioned automobile ceiling light assembly, it also includes a one-way light-transmitting layer, the lighting lens includes a light-emitting surface and a light-receiving surface, and the one-way light-transmitting layer covers the light-emitting surface, wherein the panel body includes an outer surface, and the outer surface and the light-emitting surface are arranged on the same side, there is a height difference between the outer surface and the light-emitting surface, and the thickness of the one-way light-transmitting layer is less than or equal to the value of the height difference.

[0014] In the above-mentioned automobile ceiling light assembly, a sawtooth portion is arranged on the light receiving surface, and the sawtooth portion includes a plurality of rows of teeth arranged in an array, wherein each row of teeth is arranged in a wave shape, and a plurality of teeth are arranged on each row of teeth, and any one tooth is located at a crest position on one side along the length direction of the row of teeth, and the other side of the tooth is located at a trough position.

[0015] In the above-mentioned automobile ceiling light assembly, the touch layer is an annular copper foil on the surface of the substrate, the annular copper foil is integrally formed with the substrate and corresponds to the position of the light-transmitting pattern portion.

[0016] In the above-mentioned automobile ceiling light assembly, the panel includes a light-transmitting body, and the light-transmitting body, the lighting lens and the panel body are integrally formed by two-color injection molding, wherein the inner surface of the light-transmitting body has a light-shielding layer, and part of the light-shielding layer is hollowed out to form a light-transmitting pattern portion.

[0017] The invention also provides a car, comprising a car ceiling light assembly.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The present invention provides a car ceiling light assembly, which can be turned on or off by setting a touch film or a ring-shaped copper foil, thereby compressing the volume of the entire car ceiling light assembly, achieving a thinner car ceiling light assembly, and reducing the manufacturing cost of the car ceiling light assembly.

[0020] (2) A height difference is formed between the outer surface and the light-emitting surface, and the height difference can be compensated by the thickness of the one-way light-transmitting layer, so that the light-emitting surface covered with the one-way light-transmitting layer is flush with the outer surface or the one-way light-transmitting layer is recessed inwardly from the light-emitting surface, thereby improving the appearance of the entire automotive ceiling light assembly. In addition, due to the height difference between the outer surface and the light-emitting surface, the one-way light-transmitting layer covering the light-emitting surface forms a similar "embedded" installation, and the side surfaces of the one-way light-transmitting layer are "hidden", thereby improving the reliability of the installation of the one-way light-transmitting layer.

[0021] (3) By providing a serrated portion on the light receiving surface, the light emitted from the lighting source can be refracted when entering the lighting lens, thereby adjusting the light transmission path and improving the utilization rate of the light.

[0022] (4) Through the stepped matching between the lighting lens and the panel body, on the one hand, the contact area between the two is increased. On the other hand, since the lighting lens and the panel body are made of different materials, there may be a risk of cracking after long-term use. With the stepped matching, even if cracks occur, the panel body can still "support" the lighting lens, thereby improving the reliability of the connection between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is a structural schematic diagram of an automobile ceiling lamp assembly of the present invention.

[0024] Figure 2 It is a structural schematic diagram of an automobile ceiling light assembly of the present invention from another viewing angle.

[0025] Figure 3 yes Figure 2 A cross-sectional view along the cutting line AA is shown.

[0026] Figure 4 The utility model is a partial structural schematic diagram of an automobile ceiling lamp assembly of the present invention.

[0027] Figure 5 It is a schematic structural diagram of a rear cover in a preferred embodiment of the present invention.

[0028] Figure 6 It is a schematic diagram of the structure of an illumination lens in a preferred embodiment of the present invention.

[0029] Figure 7 It is a schematic structural diagram of a substrate in a preferred embodiment of the present invention.

[0030] Figure 8 It is an exploded view of an automobile ceiling light assembly in the second embodiment of the present invention.

[0031] Fig. 9 yes Figure 8 Schematic diagram of the local structure shown.

[0032] Fig.10 yes Figure 8 Cutaway view shown Figure 1 .

[0033] Fig.11 yes Figure 8 Cutaway view shown Figure 2 .

[0034] In the figure,

[0035] 100, panel body; 110, outer surface; 120, inner surface; 130, convex portion; 140, first rib; 150, positioning column; 160, first connecting column; 161, first connecting hole; 180, first accommodating cavity; 181, second convex rib; 190, second accommodating cavity; 191, third convex rib; 1100, third accommodating cavity; 1110, slot; 1200, positioning convex portion;

[0036] 200, lighting lens; 210, light emitting surface; 220, light receiving surface; 230, sawtooth portion; 231, row of teeth; 240, recessed portion; 241, first step surface; 242, second step surface;

[0037] 300, one-way light-transmitting layer;

[0038] 400, rear cover; 410, joint surface; 420, concave cavity; 430, second rib; 440, positioning hole; 450, second connecting column; 451, second connecting hole;

[0039] 500, substrate; 510, illumination light source; 520, annular copper foil; 530, pattern light source; 550, connector; 560, positioning recess;

[0040] 600, light guide plate; 610, pit;

[0041] 700, light-transmitting body; 710, light-transmitting pattern portion;

[0042] 800, backlight key module; 820, light homogenizing bracket; 821, strip groove; 822, first convex rib; 830, touch film; 831, trigger end; 832, electrical connection end;

[0043] 900. Indicator. DETAILED DESCRIPTION

[0044] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] Embodiment 1

[0047] like Figures 1 to 7 As shown, the present invention provides an automobile ceiling light assembly, comprising:

[0048] The panel includes a light-proof panel body 100, a light-transmitting lighting lens 200 and a light-transmitting pattern portion 710;

[0049] The backlight key module 800 includes a light guide plate 600 and a touch layer, wherein the position of the touch layer corresponds to the position of the light-transmitting pattern portion 710;

[0050] The substrate 500 is electrically connected to the touch layer, wherein an illumination light source 510 and a pattern light source 530 are disposed on the substrate, and the illumination light source 510 corresponds to the position of the illumination lens 200, and the light emission direction of the pattern light source 530 is toward the side of the light guide plate 600 and is converted into surface light emission by the light guide plate 600 and emitted from the light-transmitting pattern portion 710;

[0051] The back cover 400 is connected to the panel, and the substrate 500 is clamped between the back cover 400 and the panel.

[0052] In the research on vehicle ceiling light assemblies, there are two main factors that limit the size of vehicle ceiling light assemblies. First, the functional switches in the vehicle light assemblies are usually mechanical buttons. The triggering of the mechanical buttons requires a certain stroke. At the same time, in order to cater to the size of the user's fingers for easy operation, the mechanical buttons themselves require a certain size. The second is the pattern backlight of the switch. In order for the user to see the position of the switch in a dark environment, the location of the switch requires a light-transmitting pattern of a certain size, and the divergence angle of the internal light source is limited. In order to light up the entire light-transmitting pattern, a certain distance is required between the internal light source and the light-transmitting pattern. These two factors together lead to the size of the existing vehicle ceiling light assemblies cannot be reduced.

[0053] The embodiment provides a car ceiling light assembly, which changes the original mechanical button triggering to a touch layer triggering, and the backlight pattern of the switch adopts surface luminescence in the form of a light guide plate, and the combination of the two can reduce the thickness of the car ceiling light assembly, meet the requirements of thinness and cost reduction. The surface luminescence in the form of a light guide plate can not only reduce the size, but also realize the lighting of the backlight patterns of multiple switches with only one light source, reducing the number of light sources and saving costs.

[0054] Preferably, the touch layer is an annular copper foil 520 on the surface of the substrate 500 . The annular copper foil 520 is integrally formed with the substrate 500 and corresponds to the position of the light-transmitting pattern portion 710 .

[0055] It is further pointed out that the annular copper foil 520 is arranged in an annular closed manner, wherein the position of a portion of the annular copper foil 520 corresponds to the position of the light-transmitting pattern portion 710 , and the position of another portion of the annular copper foil 520 corresponds to the position of the lighting lens 200 .

[0056] It is worth mentioning that, unlike the prior art, in which the lighting and extinguishing of the luminous light source are achieved by using structures such as metal touch coils and conductive rubber, in the present embodiment, the annular copper foil 520 is a closed circular ring with a relatively thin thickness. The annular copper foil 520 is essentially the same as the copper circuit on the substrate 500, so the annular copper foil 520 and the substrate 500 are integrally formed. The annular copper foil 520 is used to light the luminous light source while retaining the touch function. The cost of the substrate 500 will not be increased. On the contrary, compared with the prior art, the cost of the touch module can be eliminated, the production cost of the product is saved, the product competitiveness is improved, and the internal structure of the automobile dome light assembly is simplified, thereby further reducing the thickness of the automobile dome light assembly and realizing the lightweight development of the automobile dome light assembly.

[0057] In addition, the annular copper foil 520 generally refers to a material layer used in capacitive touch screen technology, which enables the screen to recognize touch input. This touch layer is usually made of a transparent conductive material, the most common of which is indium tin oxide (ITO). When the user's finger approaches or touches the switch surface on the car ceiling light assembly, the capacitance change signal is converted into a voltage signal, which is output through high and low levels to light up or extinguish the light source, thereby realizing touch control of the car ceiling light assembly.

[0058] It is further pointed out that a plurality of pits 610 for reflecting light are disposed on a surface of the light guide plate 600 facing the substrate 500 , and the plurality of pits 610 are evenly distributed on the light guide plate 600 .

[0059] It is worth mentioning that the light guide plate 600 is an optical grade acrylic / PC sheet, a high-tech material with a very high refractive index and no light absorption. The light guide points, i.e., pits 610, are printed on the bottom surface of the optical grade acrylic sheet by laser engraving, V-shaped cross grid engraving, or UV screen printing. The optical grade acrylic sheet receives the light emitted from the light source and transmits it through total reflection on the inner surface of the optical grade acrylic sheet. When the light hits each light guide point, the existence of the light guide point destroys the total reflection condition of the internal light, so the reflected light will spread to various angles and then be emitted from the front of the light guide plate. Through various light guide points of different densities and sizes, the light guide plate can emit light evenly.

[0060] Preferably, the panel also includes a light-transmitting body 700, and the light-transmitting body 700, the lighting lens 200 and the panel body 100 are integrally formed by two-color injection molding, wherein the inner surface of the light-transmitting body 700 has a light-shielding layer, and part of the light-shielding layer is hollowed out to form a light-transmitting pattern portion 710.

[0061] In this embodiment, the light-transmitting body 700, the lighting lens 200 and the panel body 100 are formed into an integrated structure by two-color injection molding technology, which not only simplifies the structure and assembly process of the entire automobile dome light assembly, but also reduces the production cost of the automobile dome light assembly.

[0062] It is worth mentioning that a plurality of light-transmitting pattern portions 710 are provided on the light-transmitting body 700. When the pattern light source 530 corresponding to the light-transmitting body 700 is turned on, the plurality of light-transmitting pattern portions 710 are illuminated synchronously, thereby improving light utilization, reducing the number of pattern light sources 530, and reducing the manufacturing cost of the automobile ceiling light assembly.

[0063] Preferably, the lighting lens 200 includes a light emitting surface 210 and a light receiving surface 220, wherein the light emitting surface of the lighting light source 510 faces the light receiving surface 220 and is close to the light receiving surface 220; and also includes a one-way light transmitting layer 300, which covers the light emitting surface 210 or the light receiving surface 220. When the one-way light transmitting layer 300 covers the light emitting surface 210, the shape of the one-way light transmitting layer 300 is adapted to the shape of the light emitting surface 210; when the one-way light transmitting layer 300 covers the light receiving surface 220, the shape of the one-way light transmitting layer 300 is adapted to the shape of the light emitting surface 210.

[0064] In this embodiment, one side of the light emitting surface 210 or the light receiving surface 220 of the lighting lens 200 is covered with a one-way light-transmitting layer 300 to prevent the user from seeing the internal structure of the car dome light assembly when the car dome light assembly is not lit, thereby improving the overall appearance of the entire car dome light assembly.

[0065] In addition, when the one-way light-transmitting layer 300 covers the light-emitting surface 210, the shape of the one-way light-transmitting layer 300 is adapted to the shape of the light-emitting surface 210; when the one-way light-transmitting layer 300 covers the light-receiving surface 220, the shape of the one-way light-transmitting layer 300 is adapted to the shape of the light-emitting surface 210, thereby achieving full coverage of the lighting lens 200 by the one-way light-transmitting layer 300.

[0066] It is further pointed out that the panel body 100 is made of opaque material, and the lighting lens 200 is made of translucent material, wherein no translucent layer is arranged on the same side of the panel body 100 as the light emitting surface 210 of the lighting lens 200, thereby avoiding light leakage and improving the reliability of the automobile ceiling light assembly when emitting light.

[0067] Preferably, the panel body 100 includes an outer surface 110 and an inner surface 120, and the outer surface 110 is arranged on the same side as the light emitting surface 210, wherein the one-way light-transmitting layer 300 covers the light emitting surface 210, there is a height difference between the outer surface 110 and the light emitting surface 210, and the thickness of the one-way light-transmitting layer 300 is less than or equal to the value of the height difference.

[0068] It is worth mentioning that the one-way light-transmitting layer 300 has a certain thickness. When the one-way light-transmitting layer 300 covers the light-receiving surface 220, since the light-receiving surface 220 is located inside the shell, although the illumination light source 510 is close to the light-receiving surface 220, there is still a gap between the two. Therefore, even if the one-way light-transmitting layer 300 covers the light-receiving surface 220, it will not affect the conduction of light. However, when the one-way light-transmitting layer 300 covers the light-emitting surface 210, the light-emitting surface 210 covered with the one-way light-transmitting layer 300 may be higher than the outer surface 110 of the panel body 100. On the one hand, when the lighting source 510 needs to be turned on or off, the finger surface of the user's finger will contact the light-emitting surface 210. After repeated use, the one-way light-transmitting layer 300 and the light-emitting surface 210 may slide relative to each other, resulting in a part of the light-emitting surface 210 not being covered by the one-way light-transmitting layer 300. Or, children may "click" the one-way light-transmitting layer 300 with their fingers out of curiosity, which may also result in a part of the light-emitting surface 210 not being completely covered by the one-way light-transmitting layer 300, and the "raised" one-way light-transmitting layer 300 may be easily "clicked off". In addition, since the one-way light-transmitting layer 300 is higher than the outer surface 110, the appearance of the entire automobile ceiling light assembly is affected.

[0069] Therefore, in the present embodiment, a height difference is formed between the outer surface 110 and the light emitting surface 210, and the height difference can be compensated by the thickness of the one-way light transmitting layer 300, so that the light emitting surface 210 covered with the one-way light transmitting layer 300 is flush with the outer surface 110 or the one-way light transmitting layer 300 is recessed in the light emitting surface 210, thereby improving the appearance of the entire automobile ceiling light assembly. In addition, due to the height difference between the outer surface 110 and the light emitting surface 210, the one-way light transmitting layer 300 covering the light emitting surface 210 forms a similar "embedded" installation, and the various side surfaces of the one-way light transmitting layer 300 are "hidden", thereby improving the reliability of the installation of the one-way light transmitting layer 300.

[0070] Preferably, a sawtooth portion 230 is provided on the light receiving surface 220, and the sawtooth portion 230 includes a plurality of rows of teeth arranged in an array, wherein each row of teeth is arranged in a wave shape, and a plurality of teeth 231 are provided on each row of teeth, and any one of the teeth 231 is located at a crest position along one side of the length direction of the row of teeth, and the other side of the tooth 231 is located at a trough position.

[0071] It is further pointed out that one side of the tooth surface of the tooth 231 is arranged in a flat surface, and the opposite side is arranged in a circular arc convex surface.

[0072] In this embodiment, by providing the sawtooth portion 230 on the light receiving surface 220 , the light emitted from the illumination light source 510 can be refracted when entering the illumination lens 200 , thereby adjusting the light transmission path and improving the utilization rate of the light.

[0073] Preferably, the joint between the panel body 100 and the lighting lens 200 is matched in a stepped manner, wherein a recess 240 is provided along the edge of the lighting lens 200 , and a protrusion 130 matching the recess 240 is provided on the panel body 100 .

[0074] It is further pointed out that the recess 240 is arranged in a stepped shape and is annular along the edge of the lighting lens 200, wherein the recess 240 includes a first step surface 241 and a second step surface 242. The structure is similar to a through groove arranged on the panel body 100, and the area of ​​the through groove is slightly larger than the area surrounded by the first step surface 241 and smaller than the area surrounded by the second step surface 242, so that when the lighting lens 200 is connected to the panel body 100, the lighting lens 200 is inserted along the inner surface 120 of the panel body 100 toward the outer surface 110, so that the outer area of ​​the through groove on the inner surface 120 just forms abutment with the recess 240.

[0075] In this embodiment, through the stepped matching between the lighting lens 200 and the panel body 100, on the one hand, the contact area between the two is increased; on the other hand, since the lighting lens 200 and the panel body 100 are made of different materials, there may be a risk of cracking after long-term use. With the stepped matching, even if cracks occur, the panel body 100 can still "lift" the lighting lens 200, thereby improving the reliability of the connection between the two.

[0076] Preferably, a first clamping portion is provided on the inner surface 120 ; the back cover 400 includes a splicing surface 410 , and a second clamping portion is provided on the splicing surface 410 , wherein the substrate 500 is clamped between the first clamping portion and the second clamping portion.

[0077] Further preferably, the first clamping portion includes a first rib 140 arranged on the inner surface 120; the second clamping portion includes a cavity 420 formed along the splicing surface 410, and a second rib 430 is arranged in the cavity 420, wherein the substrate 500 is clamped between the first rib 140 and the second rib 430.

[0078] In this embodiment, the substrate 500 is clamped between the first rib 140 and the second rib 430, which improves the reliability of the installation of the substrate 500 on the one hand, and improves the strength of the panel body 100 and the back cover 400 on the other hand. In addition, the second rib 430 is arranged in the cavity 420, so that a part of the structure of the substrate 500 can be located in the cavity 420, thereby reducing the thickness of the automobile dome light assembly and realizing the thinning development of the automobile dome light assembly.

[0079] Further preferably, a positioning column 150 is provided on the inner surface 120 of the panel body 100, and a positioning hole 440 which is plugged into and cooperates with the positioning column 150 is provided on the bottom of the concave cavity 420 of the back cover 400, wherein a first connecting column 160 is also provided on the inner surface 120 of the panel body 100, and a first connecting hole 161 is provided in the first connecting column 160, and a second connecting column 450 is provided on the bottom of the concave cavity 420 of the back cover 400, and a second connecting hole 451 is provided in the second connecting column 450, and the connection between the panel body 100 and the back cover 400 is completed by fasteners passing through the first connecting hole 161 and the second connecting hole 451.

[0080] It is worth mentioning that since the substrate 500 is clamped between the first rib 140 and the second rib 430, in order to achieve a reliable connection between the panel body 100 and the back cover 400, an avoidance hole can be set at the corresponding position of the substrate 500 to avoid the positioning column 150, the first connecting column 160 and other structures.

[0081] Embodiment 2

[0082] like Figures 8 to 11 As shown, the present invention provides an automobile ceiling light assembly, comprising:

[0083] The panel includes an opaque panel body 100, a translucent lighting lens 200 and a translucent pattern portion 710, wherein a first accommodating cavity 180 is disposed inside the panel body 100, and a position of the first accommodating cavity 180 corresponds to a position of the translucent pattern portion 710;

[0084] The backlight key module 800 is installed in the corresponding first accommodating cavity 180, and the backlight key module 800 is provided with a light guide plate 600, a light homogenizing bracket 820 and a touch layer along the opening direction of the corresponding first accommodating cavity 180;

[0085] The substrate 500 is electrically connected to the touch layer, wherein an illumination light source 510 and a pattern light source 530 are arranged on the substrate 500, and the illumination light source 510 corresponds to the position of the illumination lens 200, and the light emission direction of the pattern light source 530 is toward the side of the light guide plate 600 and is converted into surface light emission by the light guide plate 600;

[0086] The back cover 400 is connected to the panel body 100 , clamps the substrate 500 between the back cover 400 and the panel body 100 , and seals the opening of the first accommodating cavity 180 .

[0087] The present invention provides a car ceiling light assembly, which replaces the original mechanical button triggering with triggering through a touch layer, thereby reducing the thickness of the car ceiling light assembly and meeting the demand for thinness.

[0088] It is further pointed out that the touch layer is a touch film 830 , which is disposed on the inner side of the panel body 100 and is attached to the light-transmitting pattern portion 710 .

[0089] It is worth mentioning that a touch circuit is disposed on the touch film 830 , and the input and output signals are connected to the substrate 500 . When a hand approaches the light-transmitting pattern portion 710 , the chip on the substrate 500 will perform corresponding actions.

[0090] Preferably, there are multiple first accommodating cavities 180, and the position of each first accommodating cavity 180 corresponds to the position of a partial light-transmitting pattern portion 710 among the multiple light-transmitting pattern portions 710; wherein each touch film 830 is fitted with the corresponding partial light-transmitting pattern portion 710 on the corresponding first accommodating cavity 180.

[0091] In this embodiment, a single pattern light source 530 can be used to realize backlighting of a plurality of light-transmitting pattern portions 710 , thereby improving light utilization and reducing the number of pattern light sources 530 , thereby reducing the manufacturing cost of the product.

[0092] Preferably, the light homogenizing bracket 820 is made of a milky white light-transmitting material, and the outer surface shape of the light homogenizing bracket 820 matches the inner surface shape of the panel body 100 at the corresponding position.

[0093] Further preferably, a plurality of pits 610 are disposed on a surface of the light guide plate 600 facing the substrate 500 , and the plurality of pits 610 are evenly distributed on the light guide plate 600 .

[0094] It is worth mentioning that the general light guide plate 600 is arranged in a long strip shape, and the pattern light source 530 on the substrate 500 corresponds to the position of one of the two ends along the length direction of the light guide plate 600. When the pattern light source 530 is turned on, the light enters from the side of the light guide plate 600, and is converted into surface light by the light guide plate 600, and then enters the light homogenizing bracket 820, and the light is homogenized by the light homogenizing bracket 820, and then passes through the light-transmitting pattern part 710 on the panel body 100. At this time, people can see the luminous light-transmitting pattern part 710, and the area outside the light-transmitting pattern part 710 is in a non-luminous state. In addition, each backlight key module 800 corresponds to a plurality of light-transmitting pattern parts 710. When the pattern light source 530 corresponding to the backlight key module 800 is turned on, the plurality of light-transmitting pattern parts 710 are illuminated synchronously, thereby improving the light utilization rate, reducing the number of pattern light sources 530, and reducing the manufacturing cost of the automobile ceiling light assembly.

[0095] Preferably, a strip groove 821 is provided on the light-uniform bracket 820 along the light emission direction of the pattern light source 530, and the light guide plate 600 is embedded in the strip groove 821, wherein the groove walls of the strip groove 821 define two sides of the corresponding light guide plate 600 perpendicular to the light emission direction of the pattern light source 530; and the walls of the first accommodating cavity 180 define two sides of the corresponding light guide plate 600 along the light emission direction of the pattern light source 530.

[0096] Further preferably, a first rib 822 is provided on the groove wall of the strip groove 821, and a second rib 181 is provided on the cavity wall of the first accommodating cavity 180, wherein the first rib 822 abuts against both sides of the light guide plate 600 in the width direction, and the second rib 181 abuts against both sides of the light guide plate 600 in the length direction, thereby limiting the position of the light guide plate 600 in the light homogenizing bracket 820, thereby ensuring that no relative movement occurs between the light guide plate 600 and the light homogenizing bracket 820 during driving of the vehicle.

[0097] Preferably, the touch film 830 is connected to one side surface of the light homogenizing bracket 820 by bonding, and the light homogenizing bracket 820 is located between the touch film 830 and the light guide plate 600, wherein the trigger end 831 on the touch film 830 is arranged opposite to the light-transmitting pattern portion 710, and the electrical connection end 832 on the touch film 830 extends outward and extends out of the cavity opening of the corresponding first accommodating cavity 180, and forms a plug-in electrical connection with the connector 550 on the substrate 500.

[0098] It is worth mentioning that the bottom of the first accommodating cavity 180 is hollowed out, the trigger end 831 of the touch film 830 is arranged on the surface of the touch film 830, and the electrical connection end 832 of the touch film 830 extends outward from the edge of the touch film 830, and extends from the bottom of the first accommodating cavity 180 to the cavity mouth of the first accommodating cavity 180, and then is bent to be inserted into the connector of the substrate 500, thereby realizing the electrical connection between the touch film 830 and the substrate 500.

[0099] In this embodiment, the plug-in fit between the electrical connection terminal 832 on the touch film 830 and the connector 550 on the substrate 500 is similar to the plug-in fit between male and female buckles, and the male and female plug-in fit is adopted to improve the reliability of the electrical connection between the touch film 830 and the substrate 500.

[0100] Preferably, a second accommodating cavity 190 for installing the indicator 900 is also provided on the panel body 100, and the light emission direction of the illumination light source 510 corresponding to the position of the indicator 900 on the substrate 500 is perpendicular to the light emission direction of the pattern light source 530 matching the backlight key module 800, wherein the bottom of the second accommodating cavity 190 is hollowed out.

[0101] It is worth mentioning that when the illumination light source 510 on the substrate 500 corresponding to the indicator 900 is turned on, the emitted light passes through the indicator 900, so that the user can see the illuminated surface of the indicator 900, thereby realizing the backlight of the indicator 900. The light emission of the indicator 900 can inform the user whether the current car ceiling light assembly is in use.

[0102] Further preferably, a third rib 191 is provided on the cavity wall of the second accommodating cavity 190, and the position of the indicator 900 in the second accommodating cavity 190 is limited by the third rib 191, so as to avoid relative movement of the indicator 900 in the second accommodating cavity 190 during driving of the vehicle, thereby improving the reliability of installation of the indicator 900.

[0103] Preferably, a third accommodating cavity 1100 for installing an illumination lens 200 is further provided on the panel body 100, and the light emission direction of the illumination light source 510 corresponding to the position of the illumination lens 200 on the substrate 500 is perpendicular to the light emission direction of the illumination light source 510 cooperating with the backlight key module 800, wherein the bottom of the third accommodating cavity 1100 is hollowed out.

[0104] It is further pointed out that the lighting lens 200 is arranged on both sides of the guide structure, that is, generally located on both sides of the panel body 100. When the lighting light source 510 corresponding to the lighting lens 200 on the substrate 500 is turned on, the emitted light is refracted by the lighting lens 200, and then passes through the hollow part of the third accommodating cavity 1100 and is emitted to the irradiated target area, thereby facilitating the user to perform other operations.

[0105] Further preferably, a card slot 1110 is provided on the cavity wall of the third accommodating cavity 1100, and the card slot 1110 is engaged with the support foot on the lighting lens 200, so as to fix the lighting lens 200 in the third accommodating cavity 1100, avoid relative movement of the lighting lens 200 in the third accommodating cavity 1100 when the vehicle is driving, and improve the reliability of the installation of the lighting lens 200.

[0106] It is worth mentioning that the limiting structure of the indicator 900 and the lighting lens 200 can be designed according to the specific structures of the indicator 900 and the lighting lens 200, and is not limited to limiting the indicator 900 by the third rib 191 and limiting the lighting lens 200 by the slot 1110.

[0107] Preferably, a positioning structure is provided between the panel body 100 and the substrate 500 to facilitate reliable connection between the substrate 500 and the panel body 100, and a positioning protrusion 1200 is provided on the panel body 100, and a corresponding positioning recess 560 is provided on the substrate 500, wherein the positioning recess 560 and the positioning protrusion 1200 form a plug-in fit.

[0108] In this embodiment, the positioning protrusion 1200 and the positioning recess 560 can be interchanged, that is, the positioning recess 560 is disposed on the panel body 100 , and the corresponding positioning protrusion 1200 is disposed on the substrate 500 .

[0109] It is worth mentioning that the positioning protrusion 1200 is a positioning column disposed on the panel body 100 , and the positioning concave portion 560 is a positioning hole disposed on the substrate 500 .

[0110] It should be noted that in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0111] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0112] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automobile ceiling light assembly, characterized in that: include: A panel, comprising a light-proof panel body (100), a light-transmitting lighting lens (200) and a light-transmitting pattern portion (710), wherein a first accommodating cavity (180) is provided inside the panel body (100), and a position of the first accommodating cavity (180) corresponds to a position of the light-transmitting pattern portion (710); A backlight key module (800) is installed in the first accommodating cavity (180), and the backlight key module (800) comprises a light guide plate (600) and a touch layer, wherein the position of the touch layer corresponds to the position of the light-transmitting pattern portion (710); A substrate (500) is electrically connected to the touch layer, wherein an illumination light source (510) and a pattern light source (530) are arranged on the substrate (500), and the illumination light source (510) corresponds to the position of the illumination lens (200), and the light emission direction of the pattern light source (530) is toward the side of the light guide plate (600) and is converted into surface light by the light guide plate (600) and emitted from the light-transmitting pattern portion (710); The back cover (400) is connected to the panel, clamps the substrate (500) between the back cover (400) and the panel, and seals the opening of the first accommodating cavity (180).

2. The automotive ceiling light assembly according to claim 1, characterized in that: The touch layer is a touch film (830), and the touch film (830) is arranged on the inner side of the panel body (100) and is bonded to the light-transmitting pattern portion (710).

3. The automotive ceiling light assembly according to claim 2, characterized in that: It also includes a light homogenizing bracket (820) made of milky white light-transmitting material, the outer surface shape of the light homogenizing bracket (820) matches the inner surface shape of the panel body (100) at the corresponding position, wherein a strip groove (821) is provided on the light homogenizing bracket (820) along the light emission direction of the pattern light source (530), and the light guide plate (600) is embedded in the strip groove (821), and the groove wall of the strip groove (821) defines two sides of the light guide plate (600) perpendicular to the light emission direction of the pattern light source (530); and the cavity wall of the first accommodating cavity (180) defines two sides of the light guide plate (600) along the light generation direction of the pattern light source (530).

4. The automotive ceiling light assembly according to claim 3, characterized in that: The touch film (830) is connected to a side surface of the light homogenizing bracket (820) by bonding, and the light homogenizing bracket (820) is located between the touch film (830) and the light guide plate (600), wherein the trigger end (831) on the touch film (830) is arranged opposite to the light-transmitting pattern portion (710), and the electrical connection end (832) on the touch film (830) extends outward and extends out of the corresponding cavity opening of the first accommodating cavity (180), and forms a plug-in electrical connection with the connector (550) on the substrate (500).

5. The automotive ceiling light assembly according to claim 1, characterized in that: A plurality of pits (610) for reflecting light are arranged on a surface of the light guide plate (600) facing the substrate (500).

6. The automotive ceiling light assembly according to claim 1, characterized in that: The invention also comprises a one-way light-transmitting layer (300), wherein the lighting lens (200) comprises a light-emitting surface (210) and a light-receiving surface (220), and the one-way light-transmitting layer (300) covers the light-emitting surface (210), wherein the panel body (100) comprises an outer surface (110), and the outer surface (110) and the light-emitting surface (210) are arranged on the same side, there is a height difference between the outer surface (110) and the light-emitting surface (210), and the thickness of the one-way light-transmitting layer (300) is less than or equal to the value of the height difference.

7. The automotive ceiling light assembly according to claim 6, characterized in that: A sawtooth portion (230) is provided on the light receiving surface (220), and the sawtooth portion (230) comprises a plurality of rows of teeth arranged in an array, wherein each row of teeth is arranged in a wave shape, and each row of teeth is provided with a plurality of teeth (231), and any one of the teeth (231) is located at a wave crest position on one side along the length direction of the row of teeth, and the other side of the tooth (231) is located at a wave trough position.

8. The automotive ceiling light assembly according to claim 1, characterized in that: The touch control layer is an annular copper foil (520) on the surface of the substrate (500); the annular copper foil (520) is integrally formed with the substrate (500) and corresponds to the position of the light-transmitting pattern portion (710).

9. The automotive ceiling light assembly according to claim 1, characterized in that: The panel comprises a light-transmitting body (700), wherein the light-transmitting body (700), the lighting lens (200) and the panel body (100) are integrally formed by two-color injection molding, wherein the inner surface of the light-transmitting body (700) has a light-shielding layer, and a part of the light-shielding layer is hollowed out to form a light-transmitting pattern portion (710).

10. An automobile, characterized in that: The invention comprises the automobile ceiling light assembly as claimed in any one of claims 1 to 9.

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