CN219735076U - Car lamp - Google Patents

Abstract

The utility model relates to the technical field of automobile lamps, in particular to a car lamp, which comprises: a circuit board made of a high thermal conductivity material; an RGB light source array comprising a plurality of RGB light sources, each RGB light source being mounted on a first side of the circuit board; the driving chip is arranged on the second side of the circuit board and is electrically connected with each RGB light source through the circuit board; the main controller is electrically connected with the driving chip and is configured to control each RGB light source to be independently lightened; an outer cover disposed opposite the first side of the circuit board; the utility model improves the brightness of the car light by adopting a direct-injection structure and matching with the circuit board with high heat conduction material and the RGB light source array; meanwhile, through the cooperation of the circuit board, the RGB light source array, the driving chip and the main controller, the on-off management of each LED lamp bead can be realized, so that the lamp can form interactive colorful lamp light.

Description

Car lamp

Technical Field

The utility model relates to the technical field of automobile lamps, in particular to a car lamp.

Background

At present, an external automobile lamp capable of displaying patterns or animations exists in the market, but the automobile lamp can only display single-color patterns or animations and does not realize the color change of the patterns or animations, so that the automobile lamp has monotonous image color, and meanwhile, the automobile lamp also has the problems of low pattern definition, rough pattern contour and the like;

although the LED display screen has a better colorful display function, the main function of the existing LED display screen is only to display, the brightness requirement is not high, a use scene of long-time high-power operation does not exist, and the brightness of the LED display screen is generally only 150 nit to 200; therefore, the existing LED display screen has low requirements on heat dissipation performance and generally does not have an active heat dissipation function.

However, the external lamp of the automobile is used as lighting lamp equipment, the general brightness cannot be less than 1000 nit, and the high-power operation is required to be kept for a long time, so that the working performance of the existing LED display screen cannot meet the use requirement of the automobile lamp; in addition, the LED display screen is generally of a backlight type structure, is complex in structure and comprises a reflecting plate or a back plate, a light guide plate, an optical filter, an incremental film and other large complex structures, the structures can obstruct heat dissipation of the LED display screen on one hand, and on the other hand, the installation space is large, so that the LED display screen cannot adapt to the assembly requirements of automobile lamps.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a vehicle lamp capable of displaying colorful interactive patterns.

To achieve the above and other related objects, the present utility model provides a vehicle lamp comprising: a circuit board made of a high thermal conductivity material; an RGB light source array comprising a plurality of RGB light sources, each of the RGB light sources being mounted on a first side of the circuit board; the driving chip is mounted on the second side of the circuit board and is electrically connected with each RGB light source through the circuit board; a main controller electrically connected with the driving chip, the main controller being configured to be capable of controlling each of the RGB light sources to be independently lighted; and the outer mask is arranged opposite to the first side of the circuit board.

In an embodiment of the present utility model, an active heat dissipation element is disposed on the second side of the circuit board, and the active heat dissipation element is electrically connected to the main controller.

In an embodiment of the utility model, the active heat dissipation element includes a heat dissipation fan.

In an embodiment of the utility model, the vehicle lamp further comprises a lamp housing, the outer face mask is connected with the lamp housing to enclose a cavity for accommodating the circuit board and the main controller, and the main controller is in communication connection with the ECU through a bus.

In an embodiment of the utility model, the RGB light source is encapsulated on the first side of the circuit board through a silicone resin.

In an embodiment of the utility model, the RGB light source is packaged on the first side of the circuit board through a COB flip-chip process.

In an embodiment of the utility model, the vehicle lamp further includes an inner lampshade, the inner lampshade is located between the circuit board and the outer cover, the inner lampshade has light shielding portions distributed in a grid shape, and a plurality of light transmitting portions arranged in an array and surrounded by the light shielding portions.

In an embodiment of the present utility model, the light-transmitting portions are disposed in one-to-one correspondence with the RGB light sources; the edge distance between each two adjacent light-transmitting parts is more than or equal to 1mm.

In an embodiment of the utility model, a distance between the circuit board and the inner lampshade is 1.5 mm-2 mm.

In an embodiment of the utility model, the vehicle lamp further includes a decorative frame, the decorative frame being located between the circuit board and the lamp housing, the decorative frame being configured to be able to conceal an area between an edge of the first side of the circuit board and an inner wall of the lamp housing.

The scheme also provides a vehicle which comprises the vehicle lamp.

The beneficial effects are that:

1. the utility model meets the high brightness requirement of the external car lamp of the car by adopting a direct-injection structure and matching with the circuit board with high heat conduction material and the RGB light source array; the circuit board is provided with a driving and controlling integrated circuit by matching with the RGB light source array, the driving chip and the main controller, and the main controller is matched with the circuit board, so that the on-off and gray management of each RGB light source can be realized, the car lamp can display a colored pattern or animation and emit interactive colorful light, and the light aesthetic property and the practicability of the car lamp are improved;

2. according to the utility model, the material of the circuit board is changed into the aluminum substrate from the traditional FR4 glass fiber cloth material, the thermal resistance is directly reduced from 20 ℃/W to 22 ℃/W to 1.0 ℃/W to 2.0 ℃/W ℃, the heat conduction efficiency is greatly improved, the heat dissipation performance of the circuit board is improved, the circuit board can be provided with larger current input under the same external environment condition, the RGB light source can output higher brightness, and the use of external lamps of an automobile is satisfied;

3. the utility model sets the inner lampshade as the shading part with grid distribution; the light shielding part can divide the light emitting area emitted by the light source into different tiny light emitting areas so as to display the dividing boundaries of different lamplight models, so that the light transmitting part can realize free display of pattern models; meanwhile, the distance between the light transmission parts is reduced, the light transmission parts and the RGB light sources are arranged in one-to-one correspondence, so that the inner lampshade with the light shielding parts and the light transmission parts is matched with the RGB light source array capable of independently controlling the on and off of each RGB light source, the display of a luminous pattern area and the control of the boundary of the luminous pattern area can be accurately realized, the accurate micro-distance luminous pattern is realized, and the car lamp display pattern has high pixels and high definition, so that the car lamp display pattern has higher practical application value.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of the overall structure of the lamp of the present utility model.

FIG. 2 is a diagram showing the structural positional relationship among the circuit board, RGB light source array, outer cover and inner cover of the present utility model;

FIG. 3 is a schematic view of a structure in which a decorative frame is disposed between an RGB light source array and an outer cover of the present utility model;

FIG. 4 is a schematic view showing an arrangement of one of the light shielding portion and the light transmitting portion in the inner globe of the present utility model;

FIG. 5 is a schematic view showing another arrangement of a light shielding portion and a light transmitting portion in the inner globe of the present utility model;

FIG. 6 is a frame diagram of a vehicle lamp control system of the present utility model;

description of element numbers: the light source comprises a circuit board 1, an RGB light source array 2, a driving chip 3, a main controller 4, an outer cover 5, a lamp housing 6, a cavity 61, an inner lampshade 7, a shading part 71, a light transmitting part 72 and a decorative frame 8.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. It is also to be understood that the terminology used in the examples of the utility model is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the utility model. The test methods in the following examples, in which specific conditions are not noted, are generally conducted under conventional conditions or under conditions recommended by the respective manufacturers.

Please refer to fig. 1 to 6. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or scope thereof. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

Where numerical ranges are provided in the examples, it is understood that unless otherwise stated herein, both endpoints of each numerical range and any number between the two endpoints are significant both in the numerical range. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs and to which this utility model belongs, and any method, apparatus, or material of the prior art similar or equivalent to the methods, apparatus, or materials described in the examples of this utility model may be used to practice the utility model.

Referring to fig. 1-2, the present utility model provides a vehicle lamp, comprising: a circuit board 1, the circuit board 1 being made of a high thermal conductivity material;

an RGB light source array 2 including a plurality of RGB light sources, each of the RGB light sources being mounted on a first side of the circuit board 1;

a driving chip 3, wherein the driving chip 3 is mounted on the second side of the circuit board 1, and the driving chip 3 is electrically connected with each RGB light source through the circuit board 1;

a main controller 4 electrically connected to the driving chip 3, the main controller 4 being configured to be capable of controlling each of the RGB light sources to be independently turned on;

an outer cover 5 is arranged opposite to the first side of the circuit board 1.

It should be noted that, the RGB light source array 2 includes, but is not limited to, an RGB LED light source or an RGB Mini LED light source; wherein, RGB (Red, green, blue) is three primary colors of light which are not decomposed after being refracted by a prism and are called light, and various different colors can be obtained after the three primary colors are overlapped and mixed; the RGB Mini LED light source is also called a color Mini LED.

By installing the RGB light source on the first side of the circuit board 1 and arranging the outer cover 5 opposite to the first side of the circuit board 1, the RGB light source can directly irradiate the outer cover 5, compared with the traditional reflection type optical system, the direct irradiation type arrangement of the RGB light source not only solves the problem of light loss caused by reflectivity of the traditional reflection type or backlight type, but also greatly improves the direct irradiation light effect, and ensures the technical requirement of high brightness;

the lamplight of the car lamp with the backlight structure is irradiated out through reflection, and the lamp language effect of the interactive graph cannot be realized through the on-off of each light source; the RGB light sources adopt a direct-irradiation arrangement structure, and the lamp language effect of the interactive graphics is realized through the control of the on-off of different RGB light sources, such as the display of characters or patterns or animation through a car light; meanwhile, the reflection type is changed into the direct type, so that the structures of a backlight plate and a reflecting plate are reduced, and the structure of the car lamp is simplified;

the circuit board 1 is made of high heat conduction materials, such as an aluminum substrate and a ceramic substrate, wherein the aluminum substrate comprises a three-layer structure which is respectively copper foil, an insulating layer and metal aluminum; the material of the circuit board 1 is changed into an aluminum substrate from the traditional glass fiber cloth material, the thermal resistance is directly reduced from 20 ℃/W to 22 ℃/W to 1.0 ℃/W to 2.0 ℃/W ℃, the heat conduction efficiency is greatly improved, the heat dissipation performance of the circuit board 1 is improved, and larger current input can be set under the same external environment condition so as to output higher brightness effect;

the driver chip 3 includes, but is not limited to, an IC chip, wherein the IC chip (Integrated Circuit Chip) is a chip that is formed by integrating a plurality of microelectronic devices such as: an integrated circuit formed by a transistor, a resistor and a capacitor is arranged on a plastic substrate to be made into a chip;

the traditional car lamp has the defects that the brightness is insufficient, and only a backlight structure can be adopted to increase the brightness, so that the brightness requirement of an external car lamp of the car, such as a front headlight of the car, is met; the direct-injection type structure is adopted, the circuit board 1 is made of high heat-conducting materials, so that the RGB light source can use larger power and cannot be burnt, meanwhile, the direct-injection type structure is adopted to assist in enhancing the brightness of the automobile lamp, the RGB light source array 2 is matched with the use of the RGB Mini LED light source array, a large number of RGB light source arrays are integrated together, the brightness of the automobile lamp is further enhanced, the high brightness requirement of an external automobile lamp of an automobile is met, the minimum brightness can reach 1000 nit, when the automobile lamp is in a full-function mode, the brightness of 3200 nit can reach, the brightness of a common display adopts a backlight type structure generally only between 150 nit and 200, the brightness requirement of the external automobile lamp of the automobile is far less reached, and meanwhile, the common display comprises a large number of complex structures such as a reflecting plate or a backboard, a light guide plate, a light filter and an increment film; the scheme abandons a large number of complex structures, and reserves RGB light sources, and the circuit board 1 made of high heat conduction materials and the RGB light source array 2 arranged in a direct-injection structure are matched for use, so that the automobile can participate in illumination all weather, and the high-brightness requirement of an external automobile lamp is realized.

Meanwhile, through the cooperation of the circuit board 1, the RGB light source array 2, the driving chip 3 and the main controller 4, the circuit board 1 is provided with a driving and controlling integrated circuit, the main controller 4 is matched, the on-off management of each LED lamp bead can be realized, the lamp bead of the automobile lamp is the RGB light source array 2, namely, the lamp bead array is formed by a large number of RGB Mini LED lamp beads, the automobile lamp can form interactive colorful light, the data source serving as signal input is stored in the driving chip 3, the data source is updated and refreshed through a program, the display of the pattern and the animation of the automobile lamp is realized, and the high brightness, the true color and the colorful illumination of the external automobile lamp of the automobile are realized by matching with the high brightness of the automobile lamp.

As an alternative embodiment, the second side of the circuit board 1 is provided with an active heat dissipation element, and the active heat dissipation element is electrically connected with the main controller 4.

It should be noted that, by adding the active heat dissipation element, the driving current of the RGB light source is improved to the maximum extent and high power output is achieved, so as to further improve the brightness of the vehicle lamp.

As an alternative embodiment, the active heat dissipation element includes a heat dissipation fan.

It should be noted that, a temperature sensor is disposed at a pin of the driving chip 3, the main controller 4 is electrically connected with the temperature sensor and the fan, and after the pin temperature of the driving chip 3 reaches a set temperature, the fan is turned on to actively dissipate heat and cool the driving chip 3 and the circuit board 1.

Referring to fig. 1-2, as an alternative embodiment, the vehicle lamp further includes a lamp housing 6, the outer cover 5 is connected to the lamp housing 6 to enclose a cavity 61 for accommodating the circuit board 1 and the main controller 4, and the main controller 4 is communicatively connected to the ECU through a bus.

The outer cover 5 and the lamp housing 6 are sealed by sealant or welding; ECU (Electronic Control Unit) is an electronic control unit or vehicle computer, the communication connection including but not limited to CAN/CAN FD communication connection; the ECU is communicated with each LED light source through a CAN/CAN FD and is connected with each LED light source through a direct current conversion unit with a voltage increasing and decreasing function; the ECU is communicated with the main controller 4 through CAN/CAN FD, so as to control the on-off and gray scale of each group of LEDs; the main controller 4 is used for controlling a plurality of 48-channel linear LED drives, so that the accurate control of each LED is realized; the color synthesis and brightness gray scale control of the RGB LEDs are used for realizing true color and natural and clear gorgeous pattern display.

Referring to fig. 2, as an alternative embodiment, the RGB light source is encapsulated on the first side of the circuit board 1 by silicone resin.

It should be noted that, the packaging material includes but is not limited to silica gel resin or silica gel, and the silica gel resin has better heat dissipation, replaces the epoxy resin with poor traditional heat dissipation with the silica gel resin, has improved the radiating effect of circuit board 1, has increased the life and the circuit board 1 outward appearance exquisiteness of this car light hi-lite to make this car light can satisfy the use of the external car light of car.

Referring to fig. 2, as an alternative embodiment, the RGB light source is packaged on the first side of the circuit board 1 through a COB flip-chip process.

It should be noted that, the COB (Chip on Board) process refers to covering the placement point of the silicon chip on the surface of the substrate of the circuit board 1 with a heat-conducting epoxy resin, then directly placing the silicon chip on the surface of the substrate, performing heat treatment until the silicon chip is firmly fixed on the substrate, and then directly establishing electrical connection between the silicon chip and the substrate of the circuit board 1 by using a wire bonding method; the electrode of the flip LED chip faces downwards, and a bonding welding process of a forward chip is not needed, so that the production efficiency can be improved; the COB flip-chip technology has the advantages that the active layer or the light-emitting area is closer to the substrate, the heat flow path from the heat source to the substrate of the circuit board 1 is shortened, the thermal resistance is lower, the COB flip-chip technology is suitable for large-current driving, and the light efficiency is higher; the COB flip technology is adopted, so that the service life of the product can be prolonged, the maintenance cost of the product is reduced, the size of the car lamp can be smaller, and the optical matching effect is easier; meanwhile, the process has high protection performance, can be applied to various severe environments, has the effects of preventing collision, static electricity, water, dust, moisture, salt fog, oxidization, vibration, blue light and oxidization, and can avoid the problems of large-area failure and lamp falling of the LED lamp beads, thereby meeting the requirements of the automobile lamp for the external headlight of the automobile; according to the mini LED light source and the direct-injection structure, the COB flip-chip technology is adopted, so that the light source has the technical effects of high contrast, large visual angle, no light leakage, no light seepage and compact structure.

1-2 and 4-5, wherein the white area in FIG. 5 is the area where the RGB light source is lighted; as an alternative embodiment, the vehicle lamp further includes an inner lamp cover 7, the inner lamp cover 7 is located between the circuit board 1 and the outer cover 5, the inner lamp cover 7 has light shielding portions 71 distributed in a grid shape, and a plurality of light transmitting portions 72 arranged in an array and surrounded by the light shielding portions 71.

The inner shade 7 includes, but is not limited to, transparent or diffusion materials, and the inner shade 7 includes, but is not limited to, light shielding portions 71 which are distributed in a grid shape by laser carving or spraying patterns; the light shielding part 71 can divide the light emitting area emitted by the light source into different tiny light emitting areas so as to display the dividing boundaries of different lamplight models, so that the light transmitting part 72 can realize free display of the pattern models;

the present case adopts the direct projection structure, and the cooperation uses the interior lamp shade 7 that has shading portion 71, has avoided the direct exposure of car light inner circuit board 1 and electronic components structure to still cancelled backlight plate, the reflecting plate structure in the traditional structure in a poor light, reduced the thickness of car light, made this car light can make thin screen micro-screen structure, improved this car light practicality and using value.

Referring to fig. 2 and 4-5, as an alternative embodiment, the light-transmitting portions 72 are disposed in one-to-one correspondence with the RGB light sources; the edge distance L between each adjacent light-transmitting portions 72 is 1mm or more.

The edge distance L between each adjacent light transmitting portions 72 is 1mm or 2mm or 3mm or 4mm or 5mm or 6mm; through making the interval between each printing opacity portion 72 reach millimeter level size, printing opacity portion 72 and each RGB light source one-to-one set up for the interior lamp shade 7 cooperation that has shading portion 71 and printing opacity portion 72 can the RGB light source array 2 that every LED lamp pearl was on and off of independent control, can accurately realize the demonstration of luminous pattern region and the control of boundary thereof, realize accurate microspur luminous pattern, make this car light show pattern have high pixel and high definition.

Referring to fig. 2, as an alternative embodiment, the distance between the circuit board 1 and the inner lampshade 7 is 1.5-2 mm.

The distance between the circuit board 1 and the inner lampshade 7 is 1-10 mm, and further, the distance between the circuit board 1 and the inner lampshade 7 is 1mm or 1.5mm or 1.8mm or 2mm or 3mm or 5mm or 10mm; the distance between the circuit board 1 and the inner lampshade 7 is controlled to be 1.5-2 mm, so that basic dimensional deviation is met, the high-contrast brightness effect is guaranteed, the luminous pattern is precisely controlled in a micro-distance mode, and the display pattern of the car lamp is further improved to have high pixels and high definition.

Referring to fig. 3, as an alternative embodiment of the present utility model, the vehicle lamp further includes a decorative frame 8, the decorative frame 8 is located between the circuit board 1 and the lamp housing 6, and the decorative frame 8 is configured to cover an area between an edge of the first side of the circuit board 1 and an inner wall of the lamp housing 6.

It should be noted that, install through decorating frame 8 between circuit board 1 and the lamp body 6, shelter from the region between the edge of circuit board 1 first side to the lamp body 6 inner wall through decorating frame 8, avoid the region between the edge of circuit board 1 first side to the lamp body 6 inner wall to expose outside to make this car light whole more pleasing to the eye.

Referring to fig. 6, as an alternative embodiment of the present disclosure, the present utility model further provides a vehicle lamp control system, including an ECU, a main controller, a driving chip, and an RGB light source array; the driving chip comprises LED driving, and the RGB light source array comprises RGB Mini LED light sources; the ECU is connected with a power supply, the power supply is connected with a DC/DC which is a direct current conversion unit through an input filter, and the DC/DC is connected with an RGB Mini LED light source through LED driving; the ECU is connected with another input filter through a high-order data line and a low-order data line, the input filter is connected with a system basic chip, the system basic chip is connected with a singlechip, one path of the singlechip is connected with a data storage chip through SPI communication, the other path of the singlechip is connected with a signal controller through SPI communication, and the signal controller is connected with an LED drive and transmits the signal to an RGB Mini LED light source; the RGB Mini LED light sources are arranged in an array mode; the singlechip is also connected with a decoder, and the decoder is provided with a plurality of decoders; and an energy storage converter is also arranged at the LED driving position and the RGB Mini LED light source position. SPI is an abbreviation for serial peripheral interface (Serial Peripheral Interface), a high-speed, full duplex, synchronous communication bus; SPI can make the single-chip microcomputer communicate with various peripheral devices in a serial mode to exchange information; the CAN-H and the CAN-L are twisted together, so that the CAN bus is insensitive to electromagnetic interference; the input filter is arranged on an input power line with a frequency converter and is mainly used for inhibiting conduction interference and radiation interference generated by the frequency converter, and meanwhile, the input filter has common mode and differential mode inhibition capability; PCS (Power Control System) is an energy storage converter, which can control the charging and discharging processes of a storage battery to perform alternating current-direct current conversion, and can directly supply power for an alternating current load under the condition of no power grid to a direct current conversion unit with a voltage-increasing and voltage-decreasing function; SCAN is a scanning test, the whole chip can be regarded as a collection of a large number of registers and combinational logic between the registers, a scanning chain is inserted into the registers, a fault model established according to physical defects is solved, a structural test vector is generated, the test of digital logic of the chip is completed, and the scanning test is realized; the signal controller is mainly used for controlling signals, such as the magnitude of current, the lighting time sequence of the RGB light source array, and performing logic judgment and failure judgment; the IC chip comprises a data memory, wherein a data source is stored in the data memory; the singlechip is used for receiving the CAN message from the system base chip and analyzing, calculating and processing the image data to be displayed; the LED driver is used for receiving the image data of the singlechip and driving the RGB Mini LED light source array to be turned on and off. Each RGB Mini LED light source can be independently turned on and off, and the display content of the RGB Mini LED light source can truly reflect the pre-built-in stored image data; the system basic chip is provided with a linear voltage stabilizer in the chip, a 5V power supply is provided for the singlechip and the data memory respectively, and a CAN transceiver is integrated in the chip and used for communication with the vehicle body end.

The utility model also provides a vehicle, which comprises the vehicle lamp.

In summary, the vehicle lamp of the utility model can be used as a front wall lighting lamp, a rear wall lighting lamp or a side wall lighting lamp, and according to different scenes such as the running mode, the running speed, the external illumination, the weather conditions and the like of the vehicle, the intelligent brightness switching between the daytime and the night modes can be automatically realized through the cooperation of the main controller 4, the electronic control unit ECU, the driving chip, the circuit board 1 and the RGB MiniLED light sources, corresponding pre-stored display patterns or animations are executed, and the intelligent multi-color and multi-pattern customizable high-precision lighting display is provided on the premise of ensuring that the vehicle meets regulations and safe running.

The car lamp adopts a direct-irradiation type light-emitting structure, realizes compact car lamp structure and high-brightness and true-color illumination, adopts an ultra-micro color RGB Mini LED as a light source, adopts an integrated control circuit board 1, directly emits light or is matched with an inner lampshade 7 with a shading part 71 to form a high-pixel, high-definition and high-contrast area light source, and can realize accurate micro-distance light-emitting patterns by controlling and driving the on and off of each RGB light source; the method can realize the input of free images and animation sources by combining with communication signal control, and display exquisite patterns, characters or animations and light colors and brightness thereof, thereby providing illumination with true colors, high definition and high contrast. Therefore, the utility model effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model, and it is intended that the appended claims be interpreted as covering all equivalent modifications and variations as fall within the true spirit and scope of the utility model.

Claims (10)

1. A vehicle lamp, comprising:

a circuit board made of a high thermal conductivity material;

an RGB light source array comprising a plurality of RGB light sources, each of the RGB light sources being mounted on a first side of the circuit board;

the driving chip is mounted on the second side of the circuit board and is electrically connected with each RGB light source through the circuit board;

a main controller electrically connected with the driving chip, the main controller being configured to be capable of controlling each of the RGB light sources to be independently lighted;

and the outer mask is arranged opposite to the first side of the circuit board.

2. The vehicle lamp of claim 1, wherein the second side of the circuit board is provided with an active heat sink element, the active heat sink element being electrically connected to the main controller.

3. The vehicle lamp of claim 2, wherein the active heat dissipation element comprises a heat dissipation fan.

4. The vehicle lamp of claim 1, further comprising a lamp housing, wherein the outer cover is coupled to the lamp housing to enclose a cavity for receiving the circuit board and the master controller, wherein the master controller is communicatively coupled to the ECU via a bus.

5. The vehicle lamp of claim 1, wherein the RGB light source is encapsulated on the first side of the circuit board by silicone resin.

6. The vehicle lamp of claim 1, wherein the RGB light source is packaged on the first side of the circuit board by a COB flip-chip process.

7. The vehicle lamp according to claim 1, further comprising an inner lamp cover located between the circuit board and the outer cover, the inner lamp cover having light shielding portions distributed in a mesh shape, and a plurality of light transmitting portions arranged in an array surrounded by the light shielding portions.

8. The vehicle lamp according to claim 7, wherein the light transmitting portions are provided in one-to-one correspondence with the respective RGB light sources; the edge distance between each two adjacent light-transmitting parts is more than or equal to 1mm.

9. The vehicle lamp of claim 7, wherein a spacing between the circuit board and the inner lamp cover is 1.5mm to 2mm.

10. The vehicle lamp of claim 4, further comprising a decorative frame positioned between the circuit board and the lamp housing, the decorative frame configured to conceal an area between an edge of the first side of the circuit board and an inner wall of the lamp housing.