CN111332218A - Luminous logo assembly for automobile - Google Patents

Abstract

The invention discloses a luminous logo assembly for an automobile, which comprises a logo cover plate, a logo main body, a backlight module, a wire harness and an air bag cover plate, wherein a logo mounting groove is formed on the surface of the air bag cover plate, the backlight module is arranged in the logo mounting groove of the air bag cover plate, the logo main body is arranged in the logo mounting groove of the air bag cover plate and is positioned on the surface of the backlight module, the logo cover plate is pressed in the logo mounting groove of the air bag cover plate and tightly presses the logo main body and the backlight module, one end of the wire harness is connected with the backlight module, and the other end of the wire harness penetrates through the logo mounting groove of the air bag cover plate and is connected with an automobile control system. The invention utilizes the logo cover plate to tightly press the logo main body and the backlight module in the logo mounting groove formed on the air bag cover plate, thereby preventing the luminous logo assembly from being separated or broken when the air bag is ignited.

Description

Luminous logo assembly for automobile

Technical Field

The invention relates to the technical field of automobile parts, in particular to a luminous logo component for an automobile.

Background

Along with the improvement of living standard of people, people pay more and more attention to the texture and personality of the interior of an automobile, the development of automotive interior parts to the direction of electronization and intellectualization is being accelerated at present, more and more instrument boards, door panels, center controls, skylights, ceilings and other positions of the automobile are provided with intelligent backlights, luxurious, scientific and technological, romantic, warm and comfortable or personalized atmosphere environments can be created, the difference of automobile brands can be shown in the interior of the automobile, particularly at night, and the texture of the interior is enhanced.

The automobile logo is a symbol of automobile style, quality and culture, is a core component element of the interior shape of the automobile, and can achieve very important decoration effect. The logo of the airbag of the driver is used as an important decoration part of a main driving position, intelligent backlight design is very necessary, the intelligent luminous logo installed on the airbag of the driver and other intelligent interior decorations can form a complete atmosphere environment together, design bright spots are increased, brand identification degree is improved, and the intelligent luminous logo can be used for optical indication and alarm.

The existing patents related to the luminous logos for automobiles, such as CN103158633A, CN105034973A, CN105818755A, CN207241614U, etc., are mostly designed based on the structural features of the logos installed outside the automobiles, and the common features of these luminous logos are large size, convenient arrangement of the backlight module and the shading structure, flat back structure, simple installation and fixation structure, and suitable for being adhered or clamped on a flat base (such as the grille at the front of the automobile, the trunk cover at the tail, and the middle of the wheel hub), and not suitable for being installed on the safety air bags of drivers inside the automobiles.

European patent EP2340188B1 and US8061861B2 show a luminous logo capable of being installed on a driver airbag, the two patents disclose a fixing mode of the luminous logo on the driver airbag and an implementation mode of different color blocks on the logo, the logo and a backlight module are simply combined and overlapped together, the fixing mode is only suitable for injection molding of plastic logos and is not suitable for sheet metal molding of metal logos, and the logo and the backlight module are large in size and heavy without reinforcing structures, so that the risk that fragments fly out to injure drivers and passengers is easily generated in the process of airbag ignition. In addition, the core structure (backlight module) of the luminous logo is simply introduced, and the patent does not disclose or suggest how to solve the problem of uniform distribution of light on the circular-arc backlight plate, that is, how to realize the curvature of the backlight module or the following (fitting) with the complex curved surface on the back of the logo, and the uniform distribution of light on the surface of the backlight plate, and the problems of lightness, thinness, reliability and the like of the logo and the backlight module.

To this end, the applicant has sought, through useful research and research, a solution to the above-mentioned problems, in the context of which the technical solutions to be described below have been made.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: aiming at the problems of the application of the existing luminous logo on the airbag of a driver, the luminous logo component for the automobile is compact in structure, high in installation stability and capable of bearing the huge impact force generated when the airbag is exploded without falling off or cracking.

The technical problem to be solved by the invention can be realized by adopting the following technical scheme:

the luminous logo assembly for the automobile comprises a logo cover plate, a logo main body, a backlight module, a wire harness and an air bag cover plate, wherein a logo mounting groove is formed in the surface of the air bag cover plate, the backlight module is arranged in the logo mounting groove of the air bag cover plate, the logo main body is arranged in the logo mounting groove of the air bag cover plate and located on the surface of the backlight module, the logo cover plate is pressed in the logo mounting groove of the air bag cover plate and tightly presses the logo main body and the backlight module, one end of the wire harness is connected with the backlight module, and the other end of the wire harness penetrates through the air bag cover plate and then is connected with an automobile control system.

In a preferred embodiment of the present invention, at least one light emitting window is formed in the logo cover plate in a hollow manner at a portion where light emission is required.

In a preferred embodiment of the present invention, an accommodating cavity capable of accommodating the logo main body and the backlight module is formed on the back surface of the logo cover plate.

In a preferred embodiment of the present invention, a plurality of mounting legs are formed at intervals in the circumferential direction at the periphery of the back surface of the emblem cover plate, each mounting leg is provided with an axially extending anti-drop cut, each mounting leg is provided with a weakening hole at a bent position, a plurality of leg mounting through holes in one-to-one correspondence with the plurality of mounting legs are formed at the periphery of the bottom surface of the emblem mounting groove of the airbag cover plate, a leg groove is formed at a position of the back surface of the airbag cover plate corresponding to each leg mounting through hole, and a blocking rib is formed on each leg groove; during press mounting, each mounting support leg on the logo cover plate correspondingly penetrates through the support leg mounting through hole of the air bag cover plate, then the part of each mounting support leg penetrating through the support leg mounting through hole is bent along the weakening hole and fastened in the support leg groove, and the anti-falling notch on each mounting support leg is correspondingly fastened on the blocking rib of each support leg groove to prevent the logo cover plate from falling off from the air bag cover plate.

In a preferred embodiment of the present invention, when the anti-dropping notch on each mounting leg is correspondingly buckled on the blocking rib of each leg groove, the outer end of each blocking rib is processed by a welding process, so that the outer end of each blocking rib forms an inverse buckle for pressing the mounting leg.

In a preferred embodiment of the present invention, the logo main body is a flat plate, a unidirectional arc surface, a bidirectional arc surface or a sheet structure with any curved surface, and the outer contour of the flat plate is matched with that of the logo cover plate.

In a preferred embodiment of the present invention, a boss matching with the light emitting window of the emblem cover plate is formed on the front surface of the emblem body, and the boss passes through the light emitting window and is flush with the surface of the emblem cover plate, or slightly protrudes from the surface of the emblem cover plate.

In a preferred embodiment of the present invention, at least one concave surface is disposed on the front surface of the logo body, and the concave surface is made into a color pattern different from other parts by using silk-screen printing, spraying, electroplating, vacuum coating, and other processes.

In a preferred embodiment of the present invention, a groove for accommodating the backlight module is formed on the back surface of the logo main body.

In a preferred embodiment of the present invention, a first film layer and a second film layer are sequentially disposed on the front surface of the emblem body from top to bottom.

In a preferred embodiment of the present invention, the backlight module includes a light emitting circuit board, a light guide plate, a first reflective film and a second reflective film, the light guide plate covers the light emitting circuit board, the first reflective film covers a front surface of the light guide plate, and the second reflective film covers a back surface of the light guide plate.

In a preferred embodiment of the present invention, the light guide plate is a flat plate, a unidirectional arc surface, a bidirectional arc surface, or a sheet structure with any curved surface, the outer contour of which matches the logo main body.

In a preferred embodiment of the present invention, a plurality of light scattering particles are spaced in the back surface of the light guide plate.

In a preferred embodiment of the present invention, the back surface of the light guide plate is formed with a groove or a through hole for receiving an electronic component on the surface of the light emitting circuit board.

In a preferred embodiment of the present invention, the first reflective film is provided with a plurality of light holes at intervals.

In a preferred embodiment of the present invention, the light-emitting circuit board includes a substrate, a plurality of LED lamp beads integrated on the substrate, and a controller integrated on the substrate.

In a preferred embodiment of the present invention, the LED lamp bead is a side-emitting LED lamp bead or a front-emitting LED lamp bead.

In a preferred embodiment of the present invention, the LED beads are disposed below the unlit area of the logo body, or a light shielding film is disposed on the front surface of the light guide plate above the LED beads.

In a preferred embodiment of the present invention, a plurality of deformation windows are formed at intervals in the middle of the substrate to allow the substrate to be easily deformed.

In a preferred embodiment of the present invention, the wiring harness employs a flexible circuit board, one end of which is integrally manufactured with the substrate; or the wire harness adopts a flexible flat cable, and one end of the wire harness is connected with the substrate in a welding mode; or the wire harness adopts a flat cable structure, and one end of the wire harness is connected with the substrate in a welding mode.

In a preferred embodiment of the invention, one end of the wiring harness connected with the automobile control system is provided with a connector which is matched with the automobile control system in a plugging mode.

In a preferred embodiment of the present invention, at least one slit is formed on each of both side edges of the wire harness at intervals in the longitudinal direction.

In a preferred embodiment of the present invention, at least one fixing window for fixing the wire harness is opened on the wire harness.

Due to the adoption of the technical scheme, the invention has the beneficial effects that: the invention utilizes the logo cover plate to press the logo main body and the backlight module in the logo mounting groove formed on the air bag cover plate, so as to prevent the luminous logo component from being separated or broken when the air bag is ignited, and meanwhile, the invention can create a beautiful and comfortable atmosphere environment together with other atmosphere lamps in the automobile, and can also be networked with the automobile body controller, receive the instruction of the automobile body controller and drive the LED lamp to change the color, the flashing frequency or the combination thereof, thereby playing the roles of optical indication and alarm.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural diagram of the emblem cover plate of the invention.

Fig. 3 is an enlarged partial schematic view of the emblem cover plate of the invention installed on an airbag cover plate.

Fig. 4 is an enlarged partial schematic view of the emblem cover plate of the invention mounted to the airbag cover plate and welded thereto.

Fig. 5 is a schematic structural view of the emblem body of the invention.

Fig. 6 is a schematic cross-sectional view of the emblem body of the invention.

FIG. 7 is a schematic cross-sectional view of a light guide plate according to the present invention.

Fig. 8 is a schematic view of the fitting of the light emitting circuit board of the present invention and a wire harness.

Fig. 9 is a schematic view of the structure of the driver airbag portion of the present invention.

Fig. 10 is a schematic view of the structure of the airbag cover of the present invention.

Fig. 11 is a schematic structural diagram of another embodiment of the emblem cover plate of the invention.

Fig. 12 is a schematic cross-sectional view of the emblem cover plate and emblem body combination of the invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.

Example 1

Referring to fig. 1, a luminous logo assembly for an automobile is shown, including a logo cover plate 100, a logo body 200, a backlight module 300, a wire harness 400 and an airbag cover plate 500, wherein a logo mounting groove 510 is formed on the surface of the airbag cover plate 500, the backlight module 300 is disposed in the logo mounting groove 510 of the airbag cover plate 500, the logo body 200 is disposed in the logo mounting groove 510 of the airbag cover plate 500 and located on the surface of the backlight module 300, the logo cover plate 100 is press-fitted in the logo mounting groove 510 of the airbag cover plate 500 and compresses the logo body 200 and the backlight module 300, one end of the wire harness 400 is connected with the backlight module 300, and the other end thereof is connected with an automobile control system after passing through the airbag cover plate 500.

Referring to fig. 2, the shape of the emblem cover plate 100 may be circular, oval, long strip, shield or any other shape, the emblem cover plate 100 is preferably formed by processing a metal sheet material by a sheet metal forming process, the metal sheet material is preferably aluminum, steel (iron), copper, etc., the surface treatment process preferably adopts spraying, silk-screen printing, electroplating, vacuum coating, anodic oxidation, etc., as required, and the original color of the material can be maintained and appropriate anti-corrosion measures, such as varnish spraying or acrylic, can be taken. The light emitting windows 110 are formed in the hollow portion of the surface of the emblem cover plate 100, where light is required to be emitted, the number of the light emitting windows 110 is one to several, the cross-sectional shape of the light emitting windows 110 is preferably a character, a pattern, a regular geometric figure or any other shape, and light can be emitted from the hollow portion. The back of the emblem cover plate 100 is drawn into the accommodating cavities 120 capable of accommodating the emblem main body 200 and the backlight module 300 by a sheet metal forming process, the number of the accommodating cavities 120 is different from one to several, and part of the accommodating cavities 120 can be partially communicated.

In order to ensure the pressing reliability between the emblem cover plate 100 and the airbag cover plate 500, a plurality of mounting legs 130 are formed at the periphery of the back of the emblem cover plate 100 at intervals in the circumferential direction, the number of the mounting legs 130 is two to several, the mounting legs are uniformly or non-uniformly distributed on the periphery of the emblem cover plate 100, and the width of the mounting legs 130 is preferably 5mm to 10 mm. Each mounting leg 130 is provided with a weakening hole 131 at the bent position, the shape of the weakening hole 131 is preferably circular, oval, rectangular or any other shape, the mounting leg 130 is provided with an anti-falling notch 132 extending axially, the anti-falling notch 132 can be arranged on two sides, one side or the middle of the tail end of the mounting leg 130, the cross section of the anti-falling notch 132 is preferably rectangular, triangular or any other shape, and the weakening hole 131 and the anti-falling notch 132 can be communicated together. A plurality of leg mounting through holes 520 are formed at the periphery of the bottom surface of the logo mounting groove 510 of the airbag cover 500, the leg mounting through holes 520 and the mounting legs 130 are in one-to-one correspondence and are matched in size, a leg groove 530 is formed at the position of the back surface of the airbag cover 500 corresponding to each leg mounting through hole 520, and a blocking rib 531 is formed on each leg groove 530. When the emblem cover plate 100 is press-fitted on the airbag cover plate 500, each mounting leg 130 of the emblem cover plate 100 correspondingly passes through the leg mounting through-hole 520 of the airbag cover plate 500, and then the portion of each mounting leg 130 passing through the leg mounting through-hole 520 is bent along the weakening hole 131 and fastened in the leg groove 530, and the anti-falling notch 132 of each mounting leg 130 is correspondingly fastened on the rib 531 of each leg groove 530, as shown in fig. 3, so as to prevent the emblem cover plate 100 from falling off from the airbag cover plate 500.

Further, when the anti-separation notch 132 of each mounting leg 130 is correspondingly engaged with the blocking rib 531 of each leg groove 530, the outer end of each blocking rib 531 is processed by using a thermal welding process or an ultrasonic welding process, so that the outer end of each blocking rib 531 forms an inverse buckle 531a for pressing the mounting leg 130, as shown in fig. 4, thereby improving the connection stability of the emblem cover 100.

Referring to fig. 5, the emblem body 200 is preferably formed by injection molding a transparent material, but may also be preformed into a thin plate or a section with a specific cross section, and then formed into a desired shape by blanking, cutting or other post-processing processes, and the material is preferably optical grade transparent PC, PMMA or PS, etc., it should be noted that the emblem body 200 may be made of not only hard transparent material, but also soft transparent material, such as soft transparent PE, PVC or TPU, etc. The logo main body 200 preferably has a flat plate, a unidirectional arc surface (tile shape), a bidirectional arc surface or a sheet structure of any curved surface whose outer contour matches the logo cover plate 100 in order. The front surface of the emblem body 200 is provided with bosses 210, the cross-sectional shapes of the bosses 210 are preferably characters, patterns, conventional geometric figures or any other shapes matched with the light emitting window 110 of the emblem cover plate 100, the number of the bosses 210 is one to several, the bosses 210 can pass through the light emitting window 110 to be flush with the surface of the emblem cover plate 100 or be 0.1mm to 1mm higher than the surface of the emblem cover plate 100, and the size can be any size except 0.1mm to 1 mm. The middle or the edge of the boss 210 can be provided with a concave surface 220, the shape of the concave surface 220 is preferably a character, a pattern, a conventional geometric figure or any other shape, the depth of the concave surface 220 is preferably 0.1 mm-1 mm, although the size can be any other size than 0.1 mm-1 mm, including a negative size (i.e. the concave surface 220 can be higher than the boss 210), and the surface of the concave surface 220 can be made into a color pattern different from other parts by adopting silk-screen printing, spraying, electroplating, vacuum coating and other processes. In order to reduce the thickness of the luminous logo, a groove 230 capable of accommodating the backlight module 300 may be disposed on the back surface (the side facing the backlight module 300) of the logo main body 200.

Referring to fig. 6, the front surface (the side facing the emblem cover plate 100) of the emblem body 200 preferably forms a first film 240 and a second film 250 sequentially distributed from top to bottom by using silk-screen printing, spraying, electroplating, vacuum coating, film attaching, and the like. The color of the first film layer 240 is preferably silver (high or low), gold, white or any other color, the thickness of the first film layer 240 is preferably 0.01 to 30 micrometers, the first film layer 240 is preferably translucent, and the light transmittance thereof is preferably 10 to 40%. The second film 250 may not exist separately, and a first preferred scheme is to mix the light scattering agent powder uniformly into the silk-screen and spraying material of the first film 240 to form a light scattering layer, so that the first film 240 has the effect of the second film 250; the second preferred scheme is that fine sand grains are manufactured on the cavity surface of the forming die, and a fine sand grain thin layer similar to ground glass is formed on the front surface of the logo main body 200 after injection molding; the third preferred scheme is that a thin layer with fine sand grains or similar fine sand grains is formed on the front surface of the logo main body 200 by adopting post-treatment processes such as shot blasting, laser dotting, silk printing and the like; the fourth preferred scheme is that light scattering agent powder is evenly mixed into the silk-screen and spraying material to be independently silk-screen and sprayed into a thin layer; the fifth preferred embodiment is to make the first film layer 240 and the second film layer 250 into a composite film attached to the surface of the logo body 200. The second film layer 250 preferably has a thickness of 30 to 100 micrometers, a light transmittance of 60 to 90%, and a haze of 70 to 95%.

The first film layer 240 is mainly used to realize the color effect of the surface of the luminous logo, and is represented by the color of the first film layer 240 when the backlight is not lighted, or by the color of the backlight when the backlight is lighted, or by the color of the mixture of the backlight and the film layer colors. The second film layer 250 mainly plays a role in light uniformity and diffusion, and it should be noted that the fine sand grains may not be uniformly distributed, the fine sand grains near the light source are thicker and denser, the fine sand grains far away from the light source are thinner and sparser, and the thickness and the density of the fine sand grains in the local area can be adjusted according to the actual effect. It should be noted that the second film layer 250 is not necessary, and the second film layer 250 may be eliminated when the logo body 200 itself or the backlight module 300 has a light-uniformizing effect.

Referring to fig. 7 and 8 in combination with fig. 1, the backlight module 300 includes a light guide plate 310, a first reflective film 320, a second reflective film 330, and a light emitting circuit board 340. The light guide plate 310 covers the light emitting circuit board 340, and is preferably formed by injection molding of a transparent material, but may also be preformed into a thin plate or a profile with a specific cross section, and then manufactured into a desired shape by punching, cutting or other post-processing processes, where the material is preferably optical grade transparent PC, PMMA or PS, and it should be noted that the light guide plate 310 may be made of not only a hard transparent material, but also a soft transparent material, such as soft transparent PE, PVC or TPU. The light guide plate 310 preferably has a flat plate, a unidirectional arc surface (tile shape), a bidirectional arc surface, or a sheet structure of an arbitrary curved surface whose outer contour matches the logo body 200. A plurality of light scattering particles 311 are disposed at intervals in the back surface (the side facing the light emitting circuit board 340) of the light guide plate 310. In order to reduce the thickness of the light-emitting logo, a groove 312 capable of accommodating electronic components on the surface of the light-emitting circuit board 340 may be disposed on the back surface of the light guide plate 310, the position of the groove 312 is preferably in a non-light-emitting region of the logo, and the groove 312 may be designed in a through hole form as required, that is, the groove 312 penetrates through the front surface and the back surface of the light guide plate 310.

The first reflective film 320 covers the front surface (the side facing the logo body 200) of the light guide plate 310, the second reflective film 330 covers the back surface of the light guide plate 310, and the thicknesses of the first reflective film 320 and the second reflective film 330 are preferably 10 to 50 micrometers. The first preferred embodiment of the first reflective film 320 and the second reflective film 330 is to form a silver, gold, white or any other coating with high light reflection on the surface of the light guide plate 310 by silk-screen printing, spraying, electroplating, vacuum coating, etc. The second preferred scheme is to make the film material with silver color, gold color, white color or any other color with high light reflection function into the film matched with the outer contour of the light guide plate 310 by cutting, stamping, hot pressing and other processes. The first reflective film 320 is provided with a plurality of light holes 321 at intervals, the diameter of the light holes 321 is preferably 0.01 mm to 0.5 mm, and the light holes 321 are preferably formed by laser engraving, blanking, chemical etching and other processes.

The light-emitting circuit board 340 is composed of a substrate 341, a plurality of LED lamp beads 342 and a controller 343, wherein the plurality of LED lamp beads 342 are integrated on the substrate 341, and the controller 343 is integrated on the substrate 341. In order to reduce the thickness and weight of the luminescent logo, the substrate 341 is preferably a flexible circuit board (FPC), and the thickness of the substrate a-38 is preferably 0.02 mm to 0.3 mm. The LED lamp beads 342 preferably adopt a side-emitting LED lamp bead for the first time, and adopt a front-emitting LED lamp bead for the second time, the light emitting color of the LED lamp beads 342 is preferably colored RGBW (red, green, blue, white), RGB (red, green, blue), white, red, blue or any other color in sequence, and the LED lamp beads 342 preferably adopt a device with ultra-small package and a thickness of 0.5 mm to 1.5 mm. The LED lamp beads 342 are preferably arranged below the logo non-light emitting area, or a light shielding film 344 is provided above (facing the light guide plate 310 side) the LED lamp beads 342. The LED lamp beads 342 with side light emission and front light emission can be used independently or simultaneously.

The LED beads 342 may not be linearly arranged on the substrate 341, and the light can be better uniformly transmitted in the light guide plate 310 by adjusting the arrangement position and angle of the LED beads 342. Preferably, the LED lamp beads 342 are roughly divided into two to several groups and form an approximately bijection state. The side and the LED lamp bead 342 with the front light emitting can be used in combination, the LED lamp bead 342 with the side light emitting can be matched with the light guide plate to realize the light emitting in large area, the LED lamp bead 342 with the front light emitting can be matched with the uniform light film to realize the local light emitting, and the LED lamp beads 342 with different light emitting modes (side or front light emitting) and colors can be used in combination to match with more colorful color effects.

The controller 343 is preferably integrated with a MCU (microprocessor), LED driver, LIN (local interconnect network) communication function, and a device with a small package size and a thin thickness (such as QFN, TSSOP package). The front surface (the side facing the light guide plate 310) of the substrate 341 is provided with an adhesive layer (not shown in the drawings), and the adhesive layer may be provided on the back surface of the light guide plate 310 for the sake of production convenience. A plurality of windows 341a are formed at intervals in the middle of the substrate 341, the shape of the window 341a is preferably a long strip, and the shapes of both ends of the window 341a are preferably circular, so that the substrate 341 is easily deformed and can be better attached to the back surface of the light guide plate 310.

Since the light guide plate 310 is a non-planar structure, light rays enter the light guide plate 310 made of a highly transparent material from the side and travel along a straight line, and after encountering the first reflective film 320, the second reflective film 330 and the light scattering particles 311, the light rays are reflected and change the traveling direction, so that most of the light rays are continuously reflected and travel forward through an optimized design, and finally the light rays almost uniformly fill the inner space of the light guide plate 310. When light strikes the light-transmitting holes 321 formed in the front surface of the light guide plate 310 during the propagation of light inside the light guide plate 310, the light is emitted from the light-transmitting holes 321 to illuminate the luminous logo. It should be noted that the light scattering particles 311 and the light holes 321 are not uniformly distributed, the light scattering particles 311 and the light holes 321 are thinner and sparser near the light source, the light scattering particles 311 and the light holes 321 are thicker and denser far away from the light source, and the thickness and the density of the local light scattering particles 311 and the light holes 321 can be adjusted according to the actual effect, so that the surface brightness of the backlight module 300 is more uniform.

In order to simplify the topological structure of the luminous logo and reduce the weight of the luminous logo, the light guide plate 310, the first reflective film 320 and the second reflective film 330 may be omitted, and a light scattering point (not shown in the figure) and a reflective layer (not shown in the figure) are disposed on the back of the logo main body 200, so that the logo main body 200 also has the function of a light guide plate. The injection molding material of the logo body 200 may be mixed with a light scattering agent uniformly, so that the logo body 200 also has the function of a light scattering plate (layer).

The first preferred embodiment of the wire harness 400 is an FPC (flexible circuit board) integrally manufactured with the substrate 341; a second preferred embodiment of the wire harness 400 is an FFC (flexible flat cable) having one end bonded or soldered to the substrate 341; the third preferred embodiment of the wire harness 400 is a flat cable, one end of which is pressure-welded or soldered to the substrate 341. The wiring harness 400 and the substrate 341 are designed without connectors, so that the structure is simple and reliable, and the internal space of the air bag is not occupied. The width of the wire harness 400 is preferably 3 mm to 12 mm. One end of the wiring harness 400 connected with the automobile control system is provided with a connector 410 which is matched with the automobile control system in an inserting way, and the connector 410 is provided with a locking structure and can prevent loosening. Notches 420 are formed in the two side edges of the wire harness 400 at intervals along the length direction, the number of the notches 420 is one to several, the notches 420 are preferably symmetrically arranged on the two sides of the wire harness 400, the notches 420 can also be asymmetrically arranged or arranged on one side of the two sides of the wire harness 400 according to requirements, when the air bag is exploded, the wire harness is cut off by means of impact force and temperature of the explosion of the air bag and stretching or bending deformation of an air bag cover plate, power supply of a luminous logo is cut off, and potential safety hazards such as fire caused by short circuit of an electric appliance are prevented. Two to a plurality of different fixing windows 430 are formed in the middle of the wire harness 400, and the fixing windows 430 mainly play a role in fixing the wire harness.

The wiring harness 400 mainly has the functions of power supply and LIN network communication, is composed of 3-5 channels of conducting wires, and can be additionally provided with a shielding layer as required to meet the requirements of EMC (electromagnetic compatibility) performance of an electrical system. The controller 343 is connected to the automobile network through LIN line, receives the whole car control command and drives the LED lamp pearl 342 to make effects such as adjust luminance, change colour, scintillation, play the effect of beautifying the environment in the car and optical warning, instruction. The LED lamp beads 342, the controller 343 and other electronic components are preferably arranged on the front surface of the substrate 341, and the light guide plate 310 and the light-emitting circuit board 340 are bonded into a whole by a bonding layer (not shown in the figure), so that the electronic components are prevented from falling off and flying out to cause injury to drivers and passengers when the air bags are ignited.

Referring to fig. 9 and 10, a harness insertion window 540 is formed at the logo installation groove 510 of the airbag cover 500, so that the harness 400 is inserted and then connected to the vehicle control system. The back of the air bag cover plate 500 is provided with a wall 550 and a tearing part 560, the tearing part 560 divides the back of the air bag cover plate 500 and the middle area of the wall 550 into 1-5 cover plate units 570 with different numbers, the luminous logo assembly is mounted on one of the cover plate units 570, a window (not shown in the figure) is arranged at the joint of the cover plate unit 570 and the wall 550, the door cover is provided with a blocking rib, the thickness of the blocking rib is preferably 0.5-1.5 mm, and the height is preferably 0.5-2 mm. Two to a plurality of fixed ribs are arranged in the middle of the blocking rib, the thickness of the fixed rib is preferably 0.5 mm-1.5 mm, and the width of the fixed rib is preferably 3 mm-12 mm. The tail end of the fixing rib is formed into an inverted buckle by adopting a hot melting welding or ultrasonic welding process.

The wiring harness 400 is preferably arranged on the cover unit where the luminous logo is located, but the wiring harness 400 may be arranged on other cover units, and accordingly the window, the blocking rib, and the fixing rib may be provided on other cover units. The wiring harness 400 is arranged along a channel provided in the middle of the barrier rib and extends to the outside of the airbag through the window. It should be noted that a window is not necessary, and when the window is removed, the wiring harness 400 is routed along the channel provided in the middle of the rib, reaches the root of the cover unit, and then extends along the inside of the wall 550 to the outside of the airbag. When the wire harness 400 crosses the tearing part 560, the notches 420 are designed on two sides or one side of the wire harness 400 above the tearing part 560, so that the airbag cover plate 500 can be smoothly opened during the explosion, and the influence of the arrangement of the wire harness 400 on the explosion performance of the airbag cover plate 500 is reduced.

The specific installation sequence of the luminous logo component for the automobile is as follows:

1. assembling the emblem cover plate 100, the emblem body 200, the backlight module 300, and the wire harness 400 together;

2. the end of the wire harness 400 passes through the wire harness passing window 540 of the airbag cover 500;

3. correspondingly penetrating a plurality of mounting feet 130 of the emblem cover plate 100 through a plurality of foot mounting through holes 520 on the airbag cover plate 500;

4. the entire luminous emblem is embedded into the emblem installation groove 510 of the airbag cover 500;

5. the airbag cover plate 500 and the luminous logo are reversely placed in the crimping jig, the pressure head bends a plurality of mounting support legs 130 of the logo cover plate 100 and buckles the mounting support legs into the support leg grooves 530, the blocking ribs 531 can prevent the mounting support legs 130 from being pulled out when the airbag is exploded, the reverse buckles 531a are used for further increasing the anti-falling effect of the blocking ribs 531, the reverse buckles 531a are not necessary, and the reverse buckles 531a can be omitted for saving the cost.

Example 2

The automotive luminous logo assembly in this embodiment can satisfy the requirement of designing a conventional injection molded logo into a luminous logo under the condition that the original effect of the logo is not changed, and the structure of the automotive luminous logo assembly in this embodiment is substantially the same as that of the automotive luminous logo assembly in embodiment 1, and the difference is mainly the structure of the logo cover plate 100a and the logo main body 200 a. Referring to fig. 11 and 12, the shape of the emblem cover plate 100a may be circular, oval, long strip, shield, or any other shape, and the emblem cover plate 100a is preferably made of a metal sheet material, preferably aluminum, steel (iron), copper, or the like, and is formed by a sheet metal forming process. The area in the middle of the logo cover plate 100a corresponding to the desired light-emitting portion of the logo surface is hollowed to form light-emitting windows 110a, the number of the light-emitting windows 110a is one to several, the cross-sectional shape of the light-emitting windows 110a is preferably a character, a pattern, a conventional geometric figure or any other shape, and light can be emitted from the hollowed portion. In order to increase the bonding strength between the emblem cover plate 100a and the emblem body 200a, a plurality of bonding windows 120a are circumferentially spaced at the periphery of the emblem cover plate 100a, the cross-sectional shape of the bonding windows 120a is preferably circular, elliptical, rectangular, or any other geometric shape, and the number of the bonding windows 120a is three to several. The back of the logo cover plate 100a is stretched by a sheet metal forming process to form accommodating cavities (not shown in the figure) capable of accommodating the backlight module, the number of the accommodating cavities is one to several, and part of the accommodating cavities can be partially communicated. The back side and the middle of the emblem cover plate 100a are provided with the mounting legs 130a, the number of the mounting legs 130a varies from two to several, and the mounting legs 130a are uniformly or non-uniformly distributed around the emblem cover plate 100a, and other requirements of the mounting legs 130a are the same as those of embodiment a, and therefore, the description thereof is omitted.

The material of the emblem body 200a is selected in accordance with the requirements of the emblem cover plate 100a, and different from embodiment 1, when the emblem body 200a is injection molded, the emblem cover plate 100a is placed in the mold of the emblem body 200a in advance, and finally a composite body of the emblem body 200a covered with the emblem cover plate 100a is obtained, and the emblem cover plate 100a forms the skeleton of the composite body. Other structural features (such as bosses, grooves, etc.), materials, and surface treatment process requirements of the logo body 200a are the same as those of embodiment 1, and thus are not described again.

Traditional emblems of moulding plastics can not drop when guaranteeing the gasbag point to explode, has designed a lot of erection columns in the middle of the emblem, and these erection columns size is large in quantity many, influences backlight unit's arrangement. The luminous emblem subassembly for car in this embodiment is through the emblem apron 100a of embedding metal material in the emblem main part 200a of moulding plastics, because the thickness of the installation stabilizer blade 130a that the metal was made is thinner, can be at utmost reduce the influence of installation stabilizer blade 130a to backlight unit to the intensity of increase emblem main part 200a that can be further has fine practicality. It should be further noted that the emblem cover plate 100a can also be used as a light shielding sheet, so as to simplify the light shielding process of the luminous emblem, and the size and the local shape of the combination window 120a can be adjusted to further optimize the luminous effect of the emblem.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (23)

1. The luminous logo assembly for the automobile is characterized by comprising a logo cover plate, a logo main body, a backlight module, a wiring harness and an air bag cover plate, wherein a logo mounting groove is formed in the surface of the air bag cover plate, the backlight module is arranged in the logo mounting groove of the air bag cover plate, the logo main body is arranged in the logo mounting groove of the air bag cover plate and located on the surface of the backlight module, the logo cover plate is pressed in the logo mounting groove of the air bag cover plate and tightly presses the logo main body and the backlight module, one end of the wiring harness is connected with the backlight module, and the other end of the wiring harness penetrates through the air bag cover plate and then is connected with an automobile control system.

2. The luminous emblem assembly for vehicles of claim 1, wherein at least one luminous window is formed in the emblem cover plate in a hollow-out manner at a portion thereof that is to be luminous.

3. The luminous emblem assembly for vehicles of claim 1, wherein an accommodating cavity for accommodating the emblem body and the backlight module is formed on the back surface of the emblem cover plate.

4. The luminous emblem assembly for automobiles of claim 1, wherein a plurality of mounting legs are formed at intervals circumferentially at the periphery of the back surface of the emblem cover plate, each mounting leg is provided with an axially extending anti-slip notch, each mounting leg is provided with a weakening hole at a bent portion, a plurality of leg mounting through holes in one-to-one correspondence with the plurality of mounting legs are formed at the periphery of the bottom surface of the emblem mounting groove of the airbag cover plate, a leg groove is formed at a position of the back surface of the airbag cover plate corresponding to each leg mounting through hole, and a blocking rib is formed on each leg groove; during press mounting, each mounting support leg on the logo cover plate correspondingly penetrates through the support leg mounting through hole of the air bag cover plate, then the part of each mounting support leg penetrating through the support leg mounting through hole is bent along the weakening hole and fastened in the support leg groove, and the anti-falling notch on each mounting support leg is correspondingly fastened on the blocking rib of each support leg groove to prevent the logo cover plate from falling off from the air bag cover plate.

5. The luminous emblem assembly for vehicles of claim 4, wherein when the anti-separation notch of each mounting leg is correspondingly engaged with the blocking rib of each leg groove, the outer end of each blocking rib is processed by a welding process so that the outer end of each blocking rib forms an inverse buckle for pressing the mounting leg.

6. The luminous emblem assembly for vehicles of claim 1, wherein the emblem body is of a sheet structure having an outer contour matching the emblem cover plate, a flat plate, a unidirectional arc, a bidirectional arc or any curved surface.

7. The luminous emblem assembly for vehicles of claim 1, wherein the emblem body has a front surface formed with a projection matching the luminous window of the emblem cover plate, the projection penetrating the luminous window and being flush with or slightly protruding from the surface of the emblem cover plate.

8. The luminous emblem assembly for vehicles of claim 7, wherein at least one concave surface is disposed on the front surface of the emblem body, and the concave surface is made into a color pattern different from other portions by silk-screen printing, spraying, electroplating, vacuum coating, etc.

9. The luminous emblem assembly for vehicles of claim 1, wherein a recess is formed on the back surface of the emblem body for accommodating the backlight module.

10. The luminous emblem assembly for vehicles of claim 1, wherein a first film layer and a second film layer are sequentially disposed on the front surface of the emblem body from top to bottom.

11. The luminous emblem assembly for vehicles of claim 1, wherein the backlight module comprises a luminous circuit board, a light guide plate, a first reflective film and a second reflective film, the light guide plate is covered on the luminous circuit board, the first reflective film is covered on the front surface of the light guide plate, and the second reflective film is covered on the back surface of the light guide plate.

12. The luminous emblem assembly for vehicles of claim 11, wherein the light guide plate is a flat plate, a unidirectional arc surface, a bidirectional arc surface or a sheet structure of any curved surface having an outer contour matching the emblem body.

13. The luminous emblem assembly for vehicles of claim 11, wherein the light guide plate has a plurality of light scattering particles spaced apart from each other in the back surface thereof.

14. The luminous emblem assembly for vehicles of claim 11, wherein the back surface of the light guide plate is formed with a recess or a through hole for receiving electronic components on the surface of the luminous circuit board.

15. The luminous emblem assembly for vehicles of claim 11, wherein the first retroreflective film is provided with a plurality of light-transmitting holes spaced apart.

16. The illuminated emblem assembly of claim 11, wherein the illuminated circuit board comprises a substrate, a plurality of LED light beads integrated on the substrate, and a controller integrated on the substrate.

17. The luminescent emblem assembly for an automobile of claim 16, wherein the LED lamp bead is a side-emitting LED lamp bead or a front-emitting LED lamp bead.

18. The luminous emblem assembly for automobiles of claim 16, wherein the plurality of LED beads are disposed below a non-luminous area of the emblem body, or a light shielding film is provided on the front surface of the light guide plate at a position above the plurality of LED beads.

19. The luminous emblem assembly for automobiles of claim 16, wherein a plurality of deformation windows are formed at intervals at the middle position of the substrate to allow the substrate to be easily deformed.

20. The luminous emblem assembly for vehicles of claim 1, wherein the wiring harness is a flexible circuit board having one end integrally manufactured with the base plate; or the wire harness adopts a flexible flat cable, and one end of the wire harness is connected with the substrate in a welding mode; or the wire harness adopts a flat cable structure, and one end of the wire harness is connected with the substrate in a welding mode.

21. The illuminated emblem assembly for vehicles of claim 20, wherein an end of the wiring harness connected to the vehicle control system is provided with a connector for mating with the vehicle control system.

22. The luminous emblem assembly for vehicles of claim 20, wherein at least one slit is formed on both side edges of the wire harness at intervals in a longitudinal direction, respectively.

23. The luminous emblem assembly for vehicles of claim 20, wherein at least one fixing window is defined on the wire harness for fixing the wire harness.

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