A luminous vehicle logo shared by multiple vehicle models and a production method thereof

Abstract

The invention discloses a luminous vehicle logo shared by multiple vehicle models, comprising a base mounting bracket, a PCBA board, a luminous vehicle logo outer cover and a connector, wherein the luminous vehicle logo outer cover comprises a light-transmitting area and a light-shielding area, wherein the light-shielding area extends from an edge of the luminous vehicle logo outer cover to the middle, and the light-shielding area extends from the center of the luminous vehicle logo outer cover to the edge, a pattern is arranged at the light-transmitting area of ​​the luminous vehicle logo outer cover, a black ink coating and a silver-gray paint coating are sequentially coated on the inner side of the luminous vehicle logo outer cover corresponding to the area outside the pattern, and white ink is coated on the area of ​​the luminous vehicle logo corresponding to the pattern. The invention has fewer components and fewer matching positions between the components, the luminous vehicle logo outer cover has a simple structure, is easy to produce according to customer needs, does not require excessive mold development, has a larger PCBA board assembly space, is conducive to optical layout, has less tolerance accumulation, and has a high product qualification rate.

Description

Technical Field

[0001] The invention belongs to the technical field of luminous vehicle logos, and more specifically relates to a luminous vehicle logo shared by multiple vehicle models and a production method thereof. Background Art

[0002] As the appearance of cars becomes more and more trendy and personalized, the electroplating parts that were originally used as car decorations can no longer meet people's needs for car appearance decoration. Therefore, while the functions of car headlights are becoming more and more intelligent and the shapes are becoming more and more dazzling, car manufacturers have gradually begun to use through-lights on the grille that symbolizes the "front face" of the vehicle. The car logo located in the middle of the grille, which is used to symbolize the image of the car manufacturer, has also gradually begun to use a car logo with a luminous function, and together with the through-lights on the grille and the headlights on both sides of the vehicle, they form an inter-existing light system, which is usually called a "Y" type light system by industry insiders, and plays a role in lighting the front end and indicating the position of the vehicle during driving.

[0003] At the same time, some car manufacturers place some car logos with constant lighting function, running light function, and breathing light function as atmosphere lights in the middle of the front grille. They are used as ordinary decorative logos during the day, and as auxiliary functions at night when the vehicle is stopped. They can present various lighting effects according to the habits of the owner.

[0004] In the past few years, due to the small number of application examples and the differences in domestic and foreign regulations on car lights, major car manufacturers in the Chinese market have been in a wait-and-see state. Therefore, at that time, the application of luminous car logos only remained in the aftermarket, and due to the high cost, such car logos were rarely seen on vehicles running on the streets.

[0005] With the vigorous promotion of vehicle electrification in China, more and more domestic car manufacturers' technical research departments have recently begun to develop car logos with luminous functions. In particular, some new car manufacturers or traditional car manufacturers' electric vehicle platforms directly list luminous car logos as standard parts for the entire series, platform parts, and even standard parts for management and application. Many car lighting manufacturers and professional parts suppliers have also conducted preliminary research to meet the changes in car logos, so as to make full preparations to better occupy the supply market share of such parts.

[0006] As millimeter wave signage technology is developing vigorously, major OEMs have higher and higher requirements for the decorative patterns of the signage itself. Therefore, signs with various effects and colors have emerged. Among them are signs with patterns of black, blue and electroplated high-gloss metal effect colors that are widely used in electric vehicles. In order to achieve this appearance effect, many processing links are required. And these processing links often require a lot of tooling and auxiliary fixtures; this development of signs brings about a defective rate and high development costs.

[0007] like Figure 1 As shown, it is a cross-sectional structure diagram of a luminous car logo in the prior art, which is divided into many parts. The process and main functions of each part are as follows:

[0008] ① Decorative cover: It is formed by ordinary injection molding process with ABS as the base material, and then the whole is sprayed with high-gloss black paint. Then, through the cooperation of the masking cover, the inner side is partially sprayed with silver-gray paint to match the appearance style requirements. The bottom surface of the outer ring is provided with integrated claws at intervals to clamp with the light guide diffuser plate. At the same time, the bottom surfaces of the inner and outer rings are bonded to the light guide diffuser plate with double-sided tape to ensure its reliable assembly. It mainly serves as an appearance decoration;

[0009] ② Double-sided tape punching piece for outer cover: It is mainly used to bond the decorative outer cover with the light guide diffuser to prevent the decorative outer cover from loosening;

[0010] ③ Light guide diffuser: Integral light guide diffuser, milky white diffuser is evenly added to the PMMA-based light guide material, and is formed by injection molding. Its function is to evenly diffuse the light received by the inner side and transmit it to the outer side. At the same time, the optical performance on the outer side needs to reach the brightness range and uniformity range specified by the car manufacturer, and meet the relevant regulations on vehicle external lighting. From a structural point of view, since it is equipped with electronic circuits, its other function is to assemble and bond (or weld) with the base to form a closed space for waterproofing and moisture-proofing and protecting electronic circuits. As a light source, it mainly plays the role of lighting.

[0011] ④LED: The light source of this luminous car logo. It is soldered on the PCBA board through solder paste and controlled by the ECU to emit various light colors;

[0012] ⑤PCBA board: electronic circuit assembly, multi-layer printed circuit board, and integrates various electronic components, LEDs, heat sinks, connector pins, etc. When the connector is powered, it conducts current and makes the LED light up. And ensure that the LED emits the original designed light color. The PCBA board is mainly fixed to the base through 4 self-tapping screws, and the PCBA board needs a waterproof and moisture-proof sealed environment;

[0013] ⑥Self-tapping screws x4;

[0014] ⑦ Base: The base is made by injection molding, and is mainly bonded to the light guide diffuser to form a closed space, so as to achieve the purpose of waterproofing and moisture-proofing of the PCBA board; and the Pin of the PCBA board passes through the Pin hole of its base and is self-sealed with the female end of the connector to ensure the sealing of the circuit. In addition, the base needs to play the role of positioning and assembling with the grille to ensure the effective positioning of the luminous logo on the vehicle grille and good anti-vibration ability;

[0015] ⑧Connector: The male end of the connector is directly injection molded into the base, and the pin of the PCBA board is inserted into and passes through the connector hole formed on the base, and is self-sealed with the female end connected to the vehicle to ensure waterproof and effective power supply;

[0016] ⑨Waterproof breathable membrane: It is mainly attached to the air hole on the back of the base to block the air hole, thus achieving waterproof and one-way breathable effects.

[0017] The prior art has the following problems:

[0018] 1. The parts are numerous and complex, resulting in a large number of molds, high development difficulty, long development cycle, and high manufacturing cost of parts;

[0019] 2. There are many parts, which makes the product heavier and consumes more materials, resulting in higher costs;

[0020] 3. The parts turnover is complicated, resulting in a high scrap rate in the production process and a long circulation link;

[0021] 4. Many parts need to cooperate with each other, which makes tolerance control difficult and the pass rate low;

[0022] 5. Because there are many components and they all need to ensure formability, that is, they need a certain thickness. Therefore, after the overall stacking, the internal space left for PCBA board assembly is narrow, which is not conducive to optical design, and the uniformity of its light emission is relatively poor;

[0023] 6. The light-conducting material is directly exposed to the sun during daily driving. Over time, due to poor durability, the product will creep and yellow, affecting the appearance of the vehicle and causing customer complaints;

[0024] 7. The light-conducting material is directly exposed, the surface is not protected by a paint film, the hardness is low, and it is easy to leave scratches, causing poor appearance;

[0025] 8. The whole part is composed of concave and convex shapes, so it is impossible to present various special pattern effects such as various patterns and gradients in appearance. Summary of the invention

[0026] In view of the deficiencies in the prior art, the present invention provides a light-emitting vehicle logo with fewer components, fewer matching positions between components, a simple structure of the light-emitting vehicle logo cover, which is easy to produce according to customer needs and does not require excessive mold development. The PCBA board has a larger assembly space, which is conducive to optical layout, has less tolerance accumulation, and has a high product qualification rate.

[0027] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a luminous vehicle logo shared by multiple vehicle models, comprising a base mounting bracket, a PCBA board, a luminous vehicle logo cover and a connector, the luminous vehicle logo cover comprising a light-transmitting area and a light-shielding area, the light-shielding area extends from the edge of the luminous vehicle logo cover to the middle, and the light-shielding area extends from the center of the luminous vehicle logo cover to the edge, a pattern is arranged at the light-transmitting area of ​​the luminous vehicle logo cover, the area on the inner side of the luminous vehicle logo cover corresponding to the pattern outside is coated with black ink coating and silver-gray paint coating in sequence, and the area of ​​the luminous vehicle logo cover corresponding to the pattern is coated with white ink.

[0028] Furthermore, the outer surface of the luminous vehicle logo outer cover is provided with a UV coating.

[0029] Furthermore, the outer cover of the luminous vehicle logo is spherical.

[0030] Furthermore, a plurality of buckles are provided at the edge of the luminous vehicle logo outer cover, and the buckles are buckled on the base mounting bracket.

[0031] Furthermore, a glue groove is provided on the edge of the base mounting bracket, glue is provided in the glue groove, and the edge of the luminous vehicle logo outer cover is embedded in the glue groove.

[0032] Furthermore, the PCBA board and the base mounting bracket are fixed by screws.

[0033] Furthermore, a plurality of LED lights are arranged on the PCBA board.

[0034] A method for producing a luminous vehicle logo shared by multiple vehicle models comprises the following steps:

[0035] S1: A transparent light-transmitting material of polycarbonate PC and a high-gloss black material of polycarbonate PC are injected together through a double-injection molding process to form a substrate of a luminous vehicle logo cover having a light-transmitting area and a light-shielding area;

[0036] S2: spraying a UV coating on the outer surface of the substrate obtained in step S1 to make it reach a pencil hardness level of 2H;

[0037] S3: transferring black ink to the inner surface of the substrate and then drying;

[0038] S4: After the black ink is dry, spray silver-gray paint on its surface and then dry;

[0039] S5: After the silver-gray paint is dry, laser engraving is performed according to the position of the pattern to be illuminated, and the silver-gray paint and black ink superimposed on the pattern are removed to expose the transparent substrate;

[0040] S6: pad printing white ink is performed on the inner surface of the substrate where the transparent substrate is exposed, and then drying is performed to obtain a luminous vehicle logo outer cover;

[0041] S7: Fix the LED lamp on the PCB circuit board to form a PCBA board, and fix the PCBA board on the base mounting bracket by screws to form a first sub-assembly;

[0042] S8: Apply glue to the glue groove of the base mounting bracket, combine the luminous logo cover with the first sub-assembly, embed the edge of the luminous logo cover into the glue groove, and wait for the glue to dry to form the second sub-assembly;

[0043] S9: The second sub-assembly is tested for air tightness through the small hole at the bottom of the base mounting bracket, and the electrical performance is tested. After that, a waterproof and breathable membrane is affixed to the small hole to complete the production.

[0044] Further in step S2, the black ink is transferred to the light-transmitting area of ​​the substrate.

[0045] Furthermore, the base mounting bracket is formed with a BOSS column, and the angle between the BOSS column and the base mounting bracket in the demoulding direction is 10°.

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] 1. There are fewer components, fewer molds, fewer matching positions between parts, less development difficulty, and low manufacturing cost of parts;

[0048] 2. The collar is reduced, so the product is relatively light, the consumables are less, and the cost is relatively lower than the disassembly solution;

[0049] 3. There are fewer components, so there are fewer turnover links and the scrap rate is also lower;

[0050] 4. There are fewer parts that need to be matched, and the tolerance accumulation is also less, so the pass rate is relatively high;

[0051] 5. There are few components. The luminous logo cover has only one part, so the wall thickness is only one layer, which leaves a large space for PCBA board assembly, is conducive to optical design layout, and the overall luminous uniformity is better than the disassembly solution;

[0052] 6. The part that plays the role of light guide and light diffusion is on the inside of the part, and its outer surface is coated with a weather-resistant surface hardening coating that can absorb ultraviolet rays, so the product has good durability;

[0053] 7. The outer surface of the parts is coated with a surface hardening coating that can reach 2H level hardness. Normal scratches will not leave scratches on the surface;

[0054] 8. The luminous logo cover can be quickly coated with ink and engraved according to the pattern required by the customer, while the shape of the luminous logo cover remains unchanged. Similarly, the remaining parts can also be used as universal parts without the need for additional molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a cross-sectional structural diagram of a luminous vehicle logo in the prior art;

[0056] Figure 2 It is a structural schematic diagram of the present invention;

[0057] Figure 3 It is an assembly process diagram of the present invention;

[0058] Figure 4 It is a cross-sectional view of a substrate portion of the luminous vehicle logo cover of the present invention;

[0059] Figure 5 It is a rear view of the luminous vehicle logo outer cover of the present invention.

[0060] Figure numerals: 11, luminous vehicle logo cover; 12, screws; 13, PCBA board; 14, LED lamp; 15, base mounting bracket; 16, self-tapping screws; 17, waterproof and breathable membrane; 18, connector; 21, first sub-assembly; 22, second sub-assembly. DETAILED DESCRIPTION

[0061] Reference Figures 2 to 5 The embodiment of the luminous vehicle logo shared by multiple vehicle models and the production method thereof is further described.

[0062] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "several" and "a number" mean two or more, unless otherwise clearly and specifically defined.

[0064] A luminous vehicle logo shared by multiple vehicle models includes a base mounting bracket 15, a PCBA board 13, a luminous vehicle logo outer cover 11 and a connector 18, wherein the luminous vehicle logo outer cover 11 includes a light-transmitting area and a light-shielding area, wherein the light-shielding area extends from the edge of the luminous vehicle logo outer cover 11 to the middle, and the light-shielding area extends from the center of the luminous vehicle logo outer cover 11 to the edge, and a pattern is arranged at the light-transmitting area of ​​the luminous vehicle logo outer cover 11, and the area outside the inner side of the luminous vehicle logo outer cover 11 corresponding to the pattern is coated with a black ink coating and a silver-gray paint coating in sequence, and the area of ​​the luminous vehicle logo outer cover 11 corresponding to the pattern is coated with white ink.

[0065] In this embodiment, a plurality of LED lamps 14 are arranged on the PCBA board 13 , and a heat sink may also be arranged on the PCBA board 13 .

[0066] In this embodiment, the connector 18 is connected to the vehicle controller through the vehicle control harness, and the state of the LED light 14 on the PCBA board 13 can be controlled by the controller; Figure 5 As shown, it shows a pattern with the letters "HMJ", multiple circles and gradient dots. The entire luminous logo cover 11 is a spherical structure. The part that does not need to be illuminated is blocked by a shading area and black ink. The pattern can be arranged completely according to customer needs, and the basic shape of the entire luminous logo cover 11 can be unified.

[0067] When it is not powered on, its appearance shows milky white "HMJ" lettering, milky white characteristic full circle ring, gradient point transition effect connected by milky white circles, silver-grey middle ring effect, and outer high-gloss black plastic color effect.

[0068] When powered on, it can present the following effects:

[0069] First, the lighting effect, which includes the words "HMJ", the milky white characteristic full circle ring, and the gradient transition between the milky white circles, together presents an ambient light effect that emits white uniform light;

[0070] Second, the breathing light effect, all the milky white areas gradually brighten and then dim at the same time, and repeat in a reciprocating cycle, the rhythm is like the process of a normal person's deep breathing;

[0071] Third, the "HMJ" lettering is always on, and the milky white characteristic full circle and the gradient points connected to the milky white circle transition together in a flowing manner, starting from the 12 o'clock position directly above, and lighting up in sequence in a clockwise direction, going around a circle until the entire milky white position is lit.

[0072] In this embodiment, the outer surface of the luminous vehicle logo cover 11 is preferably provided with a UV coating to protect the parts from being scratched and from color change and creep of the material after being exposed to the sun.

[0073] In this embodiment, the edge of the luminous logo outer cover 11 is preferably provided with a plurality of buckles, and the buckles are buckled on the base mounting bracket 15. In this embodiment, a protrusion or other snap-fitting structure that cooperates with the buckles can be provided on the base mounting bracket 15 to enable the buckles to be stuck, and at the same time, the luminous logo outer cover 11 and the base mounting bracket 15 are well positioned to ensure the accuracy of the installation direction and angle.

[0074] In this embodiment, the edge of the base mounting bracket 15 is preferably provided with a glue groove, and glue is provided in the glue groove, and the edge of the luminous vehicle logo outer cover 11 is embedded in the glue groove; through the bonding of glue, the luminous vehicle logo outer cover 11 and the base mounting bracket 15 are more firmly combined, and at the same time, the glue enables a good sealing structure to be achieved at the joint between the two.

[0075] In this embodiment, the PCBA board 13 and the base mounting bracket 15 are preferably fixed by screws 12, which are used to completely fix the PCBA board 13 and the base mounting bracket 15 to prevent relative displacement or relative friction between the two when the vehicle body vibrates, thereby preventing failure.

[0076] In this embodiment, a waterproof and breathable membrane 17 is also provided on the back of the base mounting bracket 15 to ensure sealing and one-way breathability from the inside to the outside.

[0077] A method for producing a luminous vehicle logo shared by multiple vehicle models comprises the following steps:

[0078] S1: A transparent light-transmitting material of polycarbonate PC and a high-gloss black material of polycarbonate PC are injected together through a double-injection molding process to form a substrate of a luminous vehicle logo cover 11 having a light-transmitting area and a light-shielding area;

[0079] Specifically, in this embodiment, transparent light-transmitting material of polycarbonate PC and high-gloss black material of polycarbonate PC are mainly used, and a double-material injection molding process is used for the two materials; two substrates with the same molecular chain are combined into one in a molten state, presenting two appearance colors of transparent and black. The double-material injection molding process is a rotary double-material injection molding, and the parting surface of the mold cavity of the one-color material and the two-color material is the same surface. This process completes the transparent lens and the high-gloss black surrounding surface decoration in one process, that is, the light-transmitting area and the light-shielding area are completed in one process.

[0080] S2: spraying a UV coating on the outer surface of the substrate obtained in step S1 to make it reach a pencil hardness level of 2H;

[0081] S3: transferring black ink to the inner surface of the substrate and then drying;

[0082] Specifically, in this embodiment, the black ink is transferred to the light-transmitting area of ​​the substrate (at Figure 5 The black ink is a thermal curing type black ink, which is dried at 80°C for a short time after pad printing.

[0083] S4: After the black ink is dry, spray silver-gray paint on its surface and then dry;

[0084] Specifically, in this embodiment, the silver-grey paint is sprayed and then dried for a short time at 80° C. on a coating line.

[0085] S5: After the silver-gray paint is dry, laser engraving is performed according to the position of the pattern to be illuminated, and the silver-gray paint and black ink superimposed on the pattern are removed to expose the transparent substrate;

[0086] like Figure 5 The pattern is laser engraved according to the positions of white letters, white gradient transition points, and white circles to remove the black and silver-gray coating; after laser engraving, the transparent substrate is exposed.

[0087] S6: pad printing with white ink on the inner surface of the substrate where the transparent substrate is exposed, and then drying to obtain a luminous vehicle logo outer cover 11;

[0088] Specifically, the white ink used here is a heat-curable white ink, which is dried at 80° C. for a short time after pad printing.

[0089] That is, step S1-6 is the production process of the luminous vehicle logo cover 11, wherein the overall structure can be unified, and the pattern modeling can be printed and engraved as needed.

[0090] S7: Fix the LED lamp 14 on the PCB circuit board to form the PCBA board 13. Specifically, the LED lamp 14 is connected to the PCB circuit board by solder paste, and the soldering is made firm by vacuum reflow soldering. Of course, the remaining electronic components for control are also pasted to the PCB circuit board by SMT patch process, and connected by solder paste plus vacuum reflow soldering. In this embodiment, the SMT back soldering is preferably provided with a heat sink to prevent the LED lamp from overheating and causing color deviation. In addition, the circuit on the PCBA board 13 will undergo thermal analysis. According to the analysis results, heat dissipation holes are arranged in the parts where the heat is concentrated to ensure effective heat dissipation and prevent damage to the circuit.

[0091] After the PCBA board 13 is assembled and tested to be qualified, the PCBA board 13 is fixed to the base mounting bracket 15 by screws 12 to form a first sub-assembly 21;

[0092] In this embodiment, there are several BOSS columns on the base mounting bracket 15. In order to match the direction of the PCBA board 13, the demoulding angle on the part base mounting bracket 15 is inconsistent with the main demoulding angle of the entire base mounting bracket 15. This requires a corresponding core pulling mechanism to be provided on the mold to meet its molding requirements. In this case, the demoulding direction angle between the base mounting bracket 15 and the BOSS column for installing the PCBA board 13 is 10°.

[0093] Before step S8 in this embodiment, the base mounting bracket 15 needs to install some parts in advance. Specifically, the bottom position needs to arrange the corresponding number of through holes according to the PIN pin arrangement of the connector 18 and the male end of the connector corresponding to the female end of the connector on the vehicle control harness. The specific number of through holes (i.e. the number of PIN pins) is set according to the specific number of signal input modules on the vehicle end and the number of power supply lines. The signal input modules in this case are mainly front and rear door switch signals, vehicle SPEED signals, locking / unlocking signals, etc., so a 7PIN connector 18 is selected. Therefore, 7 small holes side by side need to be arranged at the bottom of the base mounting bracket 15 to allow the PIN pins to pass through smoothly.

[0094] S8: Apply glue to the glue groove of the base mounting bracket 15, combine the luminous logo cover 11 with the first sub-assembly 21, embed the edge of the luminous logo cover 11 into the glue groove, and wait for the glue to dry to form the second sub-assembly 22;

[0095] In this embodiment, the glue in the glue groove is a two-component glue.

[0096] S9: The second sub-assembly 22 is tested for air tightness through the small hole at the bottom of the base mounting bracket 15, and the electrical performance is tested, and then a waterproof and breathable membrane 17 is attached to the small hole to complete the production.

[0097] In this embodiment, the bottom of the preferred base mounting bracket 15 has a positioning cross rib and three integrated claws around it, which are clamped and fixed with the customer's grille (car grille) parts.

[0098] The assembly involved in this embodiment is screwed and fastened to the customer's grille parts by self-tapping screws 1612 to prevent relative displacement of the parts; it is worth mentioning that the part is developed as a standard part, so in terms of assembly angle, the grille is used to cooperate with the sign part to open the hole, so that it only needs to be developed once and can be used as a standard part in various models, thereby greatly reducing the development cost of such parts, making the development of this series of luminous sign parts very stable, greatly reducing development costs and time.

[0099] The female end on the vehicle control harness head is connected to the connector at the bottom of the base mounting bracket 15, and a self-sealing state is formed between the two; after the male and female ends of the connector are effectively connected, the vehicle segment PWM signal and power supply are input, so that the ECU on the PCBA board 13 uses the pre-burned software to control the LED light 14 to perform various effects such as color change, flowing water, breathing light, etc.

[0100] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A luminous vehicle logo shared by multiple vehicle models, comprising a base mounting bracket, a PCBA board, a luminous vehicle logo cover and a connector, characterized in that: The luminous vehicle logo outer cover comprises a light-transmitting area and a light-shielding area, wherein the light-shielding area extends from the edge of the luminous vehicle logo outer cover to the middle, and the light-transmitting area extends from the center of the luminous vehicle logo outer cover to the edge, and a pattern is arranged at the light-transmitting area of ​​the luminous vehicle logo outer cover, and a black ink coating and a silver-gray paint coating are sequentially coated on the inner side of the luminous vehicle logo outer cover corresponding to the area outside the pattern, and white ink is coated on the area of ​​the luminous vehicle logo outer cover corresponding to the pattern; The production method of the luminous vehicle logo shared by multiple models is applied to the luminous vehicle logo shared by multiple models. The production method of the luminous vehicle logo shared by multiple models includes the following steps: S1: A transparent light-transmitting material of polycarbonate PC and a high-gloss black material of polycarbonate PC are injected together through a double-injection molding process to form a substrate of a luminous vehicle logo cover having a light-transmitting area and a light-shielding area; S2: spraying a UV coating on the outer surface of the substrate obtained in step S1 to make it reach a pencil hardness level of 2H; S3: transferring black ink to the inner surface of the substrate and then drying; S4: After the black ink is dry, spray silver-gray paint on its surface and then dry; S5: After the silver-gray paint is dry, laser engraving is performed according to the position of the pattern to be illuminated, and the silver-gray paint and black ink superimposed on the pattern are removed to expose the transparent substrate; S6: pad printing white ink is performed on the inner surface of the substrate where the transparent substrate is exposed, and then drying is performed to obtain a luminous vehicle logo outer cover; S7: Fix the LED lamp on the PCB circuit board to form a PCBA board, and fix the PCBA board on the base mounting bracket by screws to form a first sub-assembly; S8: Apply glue to the glue groove of the base mounting bracket, combine the luminous logo cover with the first sub-assembly, embed the edge of the luminous logo cover into the glue groove, and wait for the glue to dry to form the second sub-assembly; S9: The second sub-assembly is tested for air tightness through the small hole at the bottom of the base mounting bracket, and the electrical performance is tested. After that, a waterproof and breathable membrane is affixed to the small hole to complete the production.

2. The luminous vehicle logo shared by multiple vehicle models according to claim 1, characterized in that: The outer surface of the luminous vehicle logo outer cover is provided with a UV coating.

3. The luminous vehicle logo shared by multiple vehicle models according to claim 2, characterized in that: The luminous vehicle logo outer cover is spherical.

4. The luminous vehicle logo shared by multiple vehicle models according to claim 3, characterized in that: A plurality of buckles are arranged at the edge of the luminous vehicle logo outer cover, and the buckles are buckled on the base mounting bracket.

5. The luminous vehicle logo shared by multiple vehicle models according to claim 4, characterized in that: The edge of the base mounting bracket is provided with a glue groove, glue is provided in the glue groove, and the edge of the luminous vehicle logo outer cover is embedded in the glue groove.

6. The luminous vehicle logo shared by multiple vehicle models according to claim 5, characterized in that: The PCBA board and the base mounting bracket are fixed by screws.

7. The luminous vehicle logo shared by multiple vehicle models according to claim 6, characterized in that: The PCBA board is provided with a plurality of LED lights.

8. The luminous vehicle logo shared by multiple vehicle models according to claim 1, characterized in that: In step S2, black ink is transferred to the light-transmitting area of ​​the substrate.

9. The luminous vehicle logo shared by multiple vehicle models according to claim 8, characterized in that: A BOSS column is formed on the base mounting bracket, and the angle between the BOSS column and the base mounting bracket in the demoulding direction is 10°.

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