A waterproof system based on car grilles

Abstract

The application discloses a kind of waterproof systems based on automobile grating, it is related to automobile waterproof technical field, including grating component, it includes grating component, one side is equipped with opening, the rubber diaphragm is equipped in the opening, the grating component inside is equipped with LED light-emitting plate;Early warning component, it includes automobile camera and central domain controller, automobile camera is used to collect the environmental image outside grating component, central domain controller is less than preset distance threshold according to environmental image It is judged that there is splash water outside grating component, and communication connection is disconnected with LED light-emitting plate, or receive air humidity greater than preset humidity threshold from outside, output water inlet early warning signal.The application can adjust the volume of grating inner cavity by the shape change of rubber diaphragm with temperature change, and then adjust the air pressure of grating inner cavity, avoid external moisture from entering grating inside due to pressure difference inside and outside grating.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile waterproof technology, in particular to a waterproof system based on automobile grille. BACKGROUND

[0002] The light-emitting grille can realize human-computer interaction, show splendid effects such as flowing water lights to users, and also can serve as a display screen effect. When a passenger gets on the vehicle, it can serve as a welcome light. When the traffic light is red, it can remind pedestrians to be careful of vehicles and other warm words. When the vehicle is charging or refueling, it can prompt to supplement energy. It can also serve as a mobile billboard, and users can select cloud advertising delivery function to collect rent and create income.

[0003] The traditional automobile light-emitting grille directly leads to the failure to use the function after water ingress, and the user can only go to the repair shop to replace the parts to normally use the automobile. However, the water ingress problem of automobile electronic and electrical devices is a complex and common problem. If the grille is located on the front face of the automobile and water ingress fails, the negative impact is too large, which directly affects the user's impression of the automobile brand and the use experience.

[0004] The waterproof form of the light-emitting grille in the prior art only bonds or welds different components to achieve temporary sealing. However, due to the complex driving environment of the automobile, the light-emitting grille will vibrate irregularly with the whole vehicle, which will inevitably cause small cracks in the bonded or welded area. When there is a certain air pressure difference between the inner cavity of the light-emitting grille and the outside air, water vapor in the environment will enter the inner cavity of the light-emitting grille from the tiny gap, which will cause the light-emitting grille cover to appear fogging defects, and in more serious cases, the circuit will be corroded, causing the light-emitting grille to fail, resulting in poor user experience. Therefore, how to solve and avoid the problem of water ingress of the light-emitting grille and the problem of water treatment strategy is a technical problem that needs to be solved. SUMMARY

[0005] In view of the defects in the prior art, the purpose of the present application is to provide a waterproof system based on automobile grille, which can adjust the volume of the inner cavity of the grille by the shape change of the rubber diaphragm with temperature change, and then adjust the air pressure of the inner cavity of the grille, to avoid the influence of external water entering the interior of the grille due to the pressure difference between the interior and exterior of the grille, to ensure the safe use of the internal components of the grille, and to improve the service life of the internal components of the grille.

[0006] To achieve the above purpose, the technical scheme adopted is:

[0007] The first aspect of the present application provides a waterproof system based on automobile grille, comprising:

[0008] The grille assembly is provided with an opening on one side, and a rubber diaphragm is arranged in the opening. The interior of the grille assembly is provided with an LED light-emitting plate.

[0009] The early warning component includes a car camera and a central domain controller, the car camera is used to collect the environment image outside the grille assembly, and the central domain controller outputs a water inlet early warning signal when it is judged according to the environment image that there is water splashing less than a preset distance threshold outside the grille assembly, the LED light-emitting plate is disconnected in communication, or the air humidity received from the outside is greater than a preset humidity threshold.

[0010] In some embodiments, the grille assembly includes a grille inner shell, a grille outer shell, an LED light-emitting plate, and a rubber diaphragm, the grille inner shell and the grille outer shell are clamped to form a containing cavity, a sealing device is arranged at the clamped part between the grille inner shell and the grille outer shell, the middle part of the grille inner shell is provided with the opening, and the end of the rubber diaphragm is fixed at the opening.

[0011] The LED light-emitting plate is arranged in the containing cavity, and the LED light-emitting plate includes an LED controller and an LED lamp bead matrix.

[0012] In some embodiments, the grille outer shell is formed by injection molding of a transparent material, the inner surface of the grille outer shell facing the grille inner shell is provided with a colored coating, and the outer surface of the grille outer shell away from the grille inner shell is provided with a colorless transparent coating.

[0013] The colorless transparent layer is a chemical layer.

[0014] In some embodiments, the pressure difference between the inside and outside of the containing cavity of the grille assembly is calculated by the following formula:

[0015]

[0016] Wherein,

[0017] The pressure difference between the inside and outside of the containing cavity of the grille assembly when the LED light-emitting plate stops working;

[0018] The air temperature in the containing cavity of the grille assembly when the LED light-emitting plate works.

[0019] The air pressure in the containing cavity of the grille assembly when the LED light-emitting plate works.

[0020] The air temperature in the containing cavity of the grille assembly when the LED light-emitting plate stops working.

[0021] In some embodiments, the deformable volume of the rubber diaphragm is calculated by the following formula:

[0022]

[0023] wherein,

[0024] for indicating the deformable volume of the rubber diaphragm;

[0025] for indicating the pressure difference between the inside and outside of the accommodating cavity of the grid assembly when the LED light-emitting plate stops working;

[0026] for indicating the gas constant;

[0027] n for indicating the amount of substance.

[0028] In some embodiments, the system further comprises:

[0029] a vehicle body domain controller configured to collect vehicle operation information and process a light display signal, and send the light display signal to the LED controller, and control the LED light bead matrix to display corresponding light according to the light display signal.

[0030] In some embodiments, the vehicle operation information includes vehicle speed information and distance information between the vehicle and the pedestrian.

[0031] When the vehicle body domain controller determines that the distance between the vehicle and the pedestrian is less than a preset safety distance threshold according to the vehicle speed information and the distance information between the vehicle and the pedestrian, the vehicle body domain controller controls the LED light-emitting plate to display distance warning information through the light display signal.

[0032] In some embodiments, the vehicle operation information includes vehicle charging information.

[0033] When the vehicle body domain controller determines that the battery is low and the battery is charging according to the vehicle charging information, the vehicle body domain controller controls the LED light-emitting plate to display low power warning information and charging status information through the light display signal.

[0034] In some embodiments, the vehicle operation information includes custom information.

[0035] The vehicle body domain controller controls the LED light-emitting plate to display corresponding custom content through the light display signal according to the custom information.

[0036] In some embodiments, the central domain controller is further configured to output a water inlet warning signal when it is determined that the central domain controller and the vehicle body domain controller are disconnected.

[0037] The technical solutions provided in the present application have the following beneficial effects:

[0038] The volume of the grid inner cavity can be adjusted through the shape change of the rubber diaphragm with temperature change, and then the air pressure of the grid inner cavity is adjusted, so that the external moisture is prevented from entering the grid interior due to the pressure difference between the inside and outside of the grid.

[0039] By configuring the early warning component, the central domain controller outputs the water inlet early warning signal when it is judged according to the environment image that there is water splashing at a distance less than a preset distance threshold outside the grid component, the communication connection with the LED controller is disconnected, or the air humidity received from the outside is greater than a preset humidity threshold, so that the early warning of the grid water inlet risk can be further improved.

[0040] The LED light-emitting plate in the grid is connected with the vehicle body domain controller, and the LED light-emitting plate can perform various light display according to the light display signal sent by the vehicle body domain controller, so that the display function of the grid is improved. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 It is an explosion schematic view of the grid assembly in the embodiment of the application.

[0042] Figure 2 It is a structural schematic view of the grid assembly in the embodiment of the application.

[0043] Figure 3 It is a structural schematic view when the internal temperature of the grid assembly is equal to the external environment temperature in the embodiment of the application.

[0044] Figure 4 It is a structural schematic view when the internal temperature of the grid assembly is greater than the external environment temperature in the embodiment of the application.

[0045] Figure 5 It is a structural schematic view when the internal temperature of the grid assembly is less than the external environment temperature in the embodiment of the application.

[0046] Figure 6 It is a working principle schematic view of the waterproof system based on the automobile grid in the embodiment of the application.

[0047] Figure 7 It is a working principle schematic view of the waterproof system based on the automobile grid in the embodiment of the application. BRIEF DESCRIPTION OF DRAWINGS

[0049] 1-grid inner shell; 2-grid outer shell; 3-LED light-emitting plate; 4-rubber diaphragm; 5-sealing device; 6-wire harness plug seat. DETAILED DESCRIPTION

[0050] The application will be further described in detail below in combination with the drawings and embodiments.

[0051] As Figure 1 and Figure 2As shown, the embodiment of the present application provides a water-proof system based on automobile grille, which comprises a grille assembly and a warning assembly for warning the water inlet risk of the grille assembly. The inner shell 1 and the outer shell 2 of the grille assembly are buckled to form a containing cavity, and the LED light-emitting plate 3 is arranged inside the containing cavity. The light emitted by the LED light-emitting plate 3 can be seen from the outside of the vehicle through the grille gap. The heat generated by the LED light-emitting plate 3 during operation is the main factor causing the temperature rise inside the containing cavity. During the installation of the grille assembly, one side of the inner shell 1 is close to the vehicle body, and one side of the outer shell 2 is towards the outside of the vehicle. The middle part of the inner shell 1 is provided with an opening, and a rubber diaphragm 4 is embedded at the opening. According to the ideal gas state equation PV = nRT, when the temperature T inside the containing cavity rises, the volume V inside the containing cavity is increased through the rubber diaphragm 4, so that the pressure P and the amount of substance n inside the containing cavity can be kept unchanged. When the pressure P and the amount of substance n are unchanged, the external gas and the moisture contained in the external gas cannot enter the containing cavity.

[0052] Further, the central domain controller outputs a water inlet warning signal when it is determined according to the environmental image that there is water splashing at a distance less than a preset distance threshold outside the grille assembly, the communication connection with the LED controller is disconnected, or the air humidity received from the outside is greater than a preset humidity threshold, so that the warning of the water inlet risk of the grille can be further improved.

[0053] In the embodiment, in the prior art, the front and rear cover plates of the grille are buckled through the clamping groove structure. The clamping groove structure can only prevent liquid water, and the clamping groove structure itself has a gap, so it cannot avoid the high-humidity gas in the gaseous state. Therefore, the water inlet problem still exists. The present application can adjust the volume of the grille inner cavity through the shape change of the rubber diaphragm 4 with temperature change, and then adjust the air pressure in the grille inner cavity, so as to avoid the entry of external moisture into the grille due to the pressure difference between the inside and outside of the grille. The warning assembly further improves the warning of the water inlet risk of the grille, and facilitates the maintenance personnel to maintain the grille.

[0054] In one specific embodiment, as shown in Figures 3 to 5 The end of the rubber diaphragm 4 is fixed at the opening. When the temperature inside the containing cavity is the same as the air temperature outside the grille, the pressure difference between the inside and outside of the containing cavity is zero, the rubber diaphragm 4 neither bulges nor shrinks, no gas exchange occurs between the inside and outside of the containing cavity, the air outside the containing cavity cannot enter the inside of the containing cavity, the external gas and the moisture contained in the external gas cannot penetrate into the containing cavity through the gap on the grille assembly, and the containing cavity can always be kept dry, so that the failure of the parts due to water inlet can be avoided.

[0055] When the temperature inside the accommodating cavity increases, the rubber diaphragm 4 bulges, increasing the volume of the accommodating cavity, thus ensuring that the pressure inside the accommodating cavity and the pressure outside the accommodating cavity, i.e. the external environment pressure, are consistent. When there is no pressure difference between the inside and outside of the accommodating cavity, the external gas and the moisture contained in the external gas cannot penetrate into the accommodating cavity through the gaps on the grille assembly, thus keeping the accommodating cavity dry at all times, thereby avoiding the failure of the parts due to water ingress.

[0056] When the temperature inside the accommodating cavity decreases, the rubber diaphragm 4 shrinks, reducing the volume of the accommodating cavity, thus ensuring that the pressure inside the accommodating cavity and the pressure outside the accommodating cavity, i.e. the external environment pressure, are consistent. When there is no pressure difference between the inside and outside of the accommodating cavity, the external gas and the moisture contained in the external gas cannot penetrate into the accommodating cavity through the gaps on the grille assembly, thus keeping the accommodating cavity dry at all times, thereby avoiding the failure of the parts due to water ingress.

[0057] In a preferred embodiment, a sealing device 5 is arranged at the fastening position between the inner grille shell 1 and the outer grille shell 2.

[0058] In this embodiment, the LED light-emitting plate 3 is mounted to the inner grille shell 1, which can be achieved by clamping or bolting. When fixing the electronic device to the outer grille shell 2, a structural adhesive can be used to effectively seal the gap between the LED light-emitting plate 3 and the inner grille shell 1 and the outer grille shell 2.

[0059] The inner grille shell 1 is provided with a wire harness plug seat for electrical connection between the grille and the vehicle body.

[0060] In a preferred embodiment, the pressure difference between the inside and outside of the accommodating cavity of the grille assembly is calculated using the following formula:

[0061] (1)

[0062] The deformable volume of the rubber diaphragm 4 is calculated using the following formula:

[0063] (2)

[0064] wherein, represents the pressure difference between the inside and outside of the accommodating cavity of the grille assembly when the LED light-emitting plate 3 stops working. represents the air temperature inside the accommodating cavity of the grille assembly when the LED light-emitting plate 3 works. represents the air pressure inside the accommodating cavity of the grille assembly when the LED light-emitting plate 3 works. represents the air temperature inside the accommodating cavity of the grille assembly when the LED light-emitting plate 3 stops working.

[0065] wherein, A deformable volume for representing the rubber membrane 4. A pressure difference between inside and outside of the accommodating cavity of the grating assembly when the LED light-emitting plate 3 stops working. A gas constant.

[0066] In the embodiment, a waterproof structure is designed on the grating inner shell 1 of the light-emitting grating, which is different from the conventional sealing ring and is a rubber membrane 4. The waterproof structure of the present application adopts the rubber membrane 4 which utilizes its balloon structure. When the light-emitting unit such as the LED light plate and other electronic devices work and heat, causing the air in the light-emitting grating cavity to heat and expand, the rubber membrane will bulge outward and deform. When the light-emitting unit and other electronic devices stop working, the air in the cavity cools and shrinks, causing the need to inhale air outside, and the rubber membrane shrinks inward and deforms, thereby solving the problem of air pressure difference caused by temperature difference between the inside and outside of the light-emitting grating, preventing the electronic devices from breathing in water, and providing the first water protection for the light-emitting grating.

[0067] The principle is explained as follows. It is assumed that the volume V of the accommodating cavity is constant, wherein, P represents the pressure at normal temperature, T represents the normal temperature, P represents the pressure at high temperature, T represents the high temperature. The ambient temperature of the light-emitting grating is -40℃ to 65℃, the normal temperature is 23℃, and the maximum temperature of the light-emitting grating when working is 90℃. Therefore, when the ambient temperature is 23℃ and the light-emitting grating normally heats up to 90℃ for a period of time, the pressure in the light-emitting grating cavity is: According to the above calculation, PV=nRT, P represents the pressure, which is P=124.25 kPa at this time, T=363.15, R=8.31 J / mol, and n=28.9634 g / mol. Therefore, The deformation amount of the rubber membrane 4 is =673.80 Therefore, as long as the rubber membrane 4 is designed to have a deformable volume greater than 673.80 , it can be used.

[0068] In a preferred embodiment, the central domain controller is further configured to output a water-in warning signal when it is determined that the central domain controller is disconnected from the vehicle body domain controller.

[0069] ​In the embodiment, when the light-emitting grid is combined with the automobile camera, the Internet of Things weather information and the whole vehicle XCU platform, the weather, air humidity, car washing splashing water and communication state are statistically integrated, whether the light-emitting grid is short-circuited and fails due to water ingress is analyzed and predicted, when the prediction result is that there is a risk of water ingress failure, through the Internet of Things information system, the risk information is reported to the whole vehicle factory after-sales background and the maintenance is requested to be arranged, the water ingress early warning control strategy achieves the effect of the second risk avoidance, so as to avoid the risk accident of function failure in the use process of the user.

[0070] The vehicle motion domain controller platform is used as a central domain controller and as part of the early warning component. When the central domain controller determines that there is splashing water less than a preset distance threshold outside the grid component, the LED controller is disconnected from the communication connection, or the air humidity received from the outside is greater than a preset humidity threshold, the central domain controller outputs a water ingress early warning signal, which can further improve the early warning of the grid water ingress risk.

[0071] In a preferred embodiment, the grid shell 2 is formed by injection molding of a transparent material, the inner surface of the grid shell 2 facing the grid inner shell 1 is provided with a colored coating, and the outer surface of the grid shell 2 away from the grid inner shell 1 is provided with a colorless transparent coating. The colorless transparent layer is a chemical layer.

[0072] In the embodiment, the grid shell 2 is injection molded by using a transparent material such as ABS (Acrylonitrile Butadiene Styrene) or PC (Polycarbonate), and then the inner surface facing the grid inner shell 1 is sprayed with a paint of the color of the vehicle body to achieve the same color as the vehicle body. A hardened colorless transparent coating is applied to the outer surface away from the grid inner shell 1. The coating material generally includes inorganic matter, silicone paint, fluorocarbon paint, multifunctional acrylate and a small amount of thermosetting resin. According to the properties of adhesion, the coating can be divided into two types of physical coating and chemical coating. The physical coating only uses a film to combine with the plate, while the molecules in the chemical coating can cross-link with the side chain of the plate to produce stronger bonding force, so the adhesion of the chemical coating is higher and more reliable. Using the chemical coating can increase the surface hardness of the grid shell 2 and increase the wear resistance without affecting the light transmittance.

[0073] Secondly, the grille shell 2 is annealed, the temperature can be controlled between 45-65℃, the time can be controlled between 0.5H-2H, the stress of the surface of the mask is eliminated, and the surface gloss shadow after traditional injection molding can be removed. Then, the inner surface of the grille shell 2 is subjected to a local paint removal process, which can be cut by laser. The high-temperature laser atomizes the surface paint coating and part of the plastic material, so that the cut area exhibits a transparent state, and the pattern can be customized according to user needs or modeling requirements, which can be realized by adjusting the laser engraving process parameters. Then, the cut area is subjected to surface finishing treatment, which can use a fine brush to brush off the surface dust. Finally, vacuum electroplating or color spraying is performed, the coating is controlled between 0.2-0.6μm, which ensures that the light inside can be transmitted, and the metal electroplating or paint gloss can be realized from the outside.

[0074] In a preferred embodiment, the LED light-emitting plate 3 is a plurality of LED small bulbs integrated on a PCB (Printed Circuit Board) board, and a single-chip microcomputer with programming control function is also integrated on the PCB board. The single-chip microcomputer can be connected to the automobile power supply line and communicate with the vehicle through CAN. The single-chip microcomputer is the LED controller. The LED controller is connected with the vehicle body domain controller. The LED light-emitting plate 3 can perform various light display according to the light display signal sent by the vehicle body domain controller, thereby improving the display function of the grille.

[0075] Further, the system further comprises a vehicle body domain controller for collecting vehicle running information and processing a light display signal. The vehicle body domain controller sends the light display signal to the LED controller, and the LED controller controls the LED light bead matrix to perform corresponding light display.

[0076] In a specific embodiment, as shown in Figure 6 The vehicle running information includes vehicle speed information and distance information between the vehicle and the pedestrian.

[0077] When the vehicle body domain controller determines that the distance between the vehicle and the pedestrian is less than a preset safety distance threshold according to the vehicle speed information and the distance information between the vehicle and the pedestrian, the vehicle body domain controller controls the LED light-emitting plate 3 to display distance warning information through the light display signal.

[0078] In the embodiment, when there is a pedestrian at a road intersection with a red light, the LED light panel 3 can display a "be careful of vehicles" sign at the grating assembly. Specifically, when the vehicle speed sensor transmits a vehicle speed signal to the powertrain domain controller through CAN communication or LIN communication, the powertrain domain controller performs analog-to-digital conversion on the analog signal output by the vehicle speed sensor and outputs a corresponding digital signal to the Ethernet. The vehicle body domain controller receives the vehicle speed signal transmitted by the powertrain domain controller. Meanwhile, the vehicle body camera captures a signal of a pedestrian, and the auxiliary driving domain controller processes and calculates the signal to determine whether the distance between the pedestrian and the vehicle is greater than a certain safety distance threshold. When the calculated distance is less than the safety distance threshold, the auxiliary driving domain controller outputs a warning signal. After the vehicle body domain controller receives the warning signal, the vehicle body domain controller gives a signal instruction to display a "be careful of vehicles" sign and sends the signal to the light grating controller through the CAN line. The light grating translates the "be careful of vehicles" signal through the internal single-chip microcomputer, calls the pre-stored text pattern library of the grating assembly, and drives the LED lamp beads to emit light and display.

[0079] When the continuously received auxiliary driving domain controller warning signal disappears, the vehicle body domain controller issues a signal instruction to cancel the "be careful of vehicles" sign. The light grating translates the "cancel the be careful of vehicles" signal through the internal single-chip microcomputer and drives the LED lamp beads to turn off.

[0080] In one specific embodiment, the vehicle operating information includes vehicle charging information.

[0081] When the vehicle body domain controller determines that the battery is low on power and the battery is being charged according to the vehicle charging information, the vehicle body domain controller controls the LED light panel 3 to display low-power warning information and charging status information through the light display signal.

[0082] In the embodiment, when the vehicle is charging, the LED light panel 3 can prompt the energy replenishment grid. Specifically, when the vehicle is charging, the battery controller monitors the battery charging signal and continuously feeds back to the powertrain domain controller. The powertrain domain controller converts the battery charging signal and continuously transmits the vehicle body domain controller through the Ethernet. The vehicle body domain controller receives and processes the battery charging signal and transmits it to the light grating controller through the CAN line. The light grating controller decodes and translates the battery charging signal, calls the internal text pattern library of the light grating controller, and drives the LED lamp beads to emit light and display, thereby displaying the effect of the charging energy replenishment grid.

[0083] In one specific embodiment, the vehicle operating information includes custom information.

[0084] The vehicle body domain controller controls the LED light panel 3 to display corresponding custom content according to the custom information through the light display signal.

[0085] In the present embodiment, the user can set the light-emitting grille custom mode function on the car display screen on the car dashboard or on the mobile phone APP. The custom mode function includes a cool water lamp mode, a welcome mode, and an advertising mode.

[0086] When the user selects the cool water lamp mode on the car display screen, the infotainment domain controller gives a cool water lamp mode signal to the vehicle body domain controller through the vehicle Ethernet, and then the vehicle body domain controller translates it and gives a cool water lamp mode signal instruction to the light-emitting grille controller through the CAN line. The light-emitting grille translates the cool water lamp mode signal through the internal single-chip microcomputer, calls the internal text pattern library of the light-emitting grille controller, and drives the LED lamp beads to display light. When operating on the mobile phone APP, the signal information is transmitted to the infotainment domain controller of the whole vehicle through the Internet of Things cloud, and the function is realized through the above process.

[0087] The welcome mode supports the user to realize the writing screen projection function, realizing the display of welcome light effect. When the user selects the welcome mode on the car display screen, the car screen can pop up a writing input box, and the user can enter the text to be written. The infotainment domain controller gives a welcome mode signal and text information to the vehicle body domain controller through the vehicle Ethernet, and then the vehicle body domain controller translates it and gives a welcome mode signal and text information instruction to the light-emitting grille controller through the CAN line. The light-emitting grille translates the text signal through the internal single-chip microcomputer, calls the internal text pattern library of the light-emitting grille controller, and drives the LED lamp beads to display light. When operating on the mobile phone APP, the signal information is transmitted to the infotainment domain controller of the whole vehicle through the Internet of Things cloud, and the function is realized through the above process.

[0088] The advertising mode supports the whole vehicle networking advertising function, which can be rented to other platforms for rent and profit, and can generate revenue for users. The function implementation steps are as follows: when the user selects the advertising mode, the Internet of Things advertising platform can be entered, the user can select the advertising to be put, the infotainment domain controller loads the advertising information through the cloud, and gives a welcome mode signal and advertising information to the vehicle body domain controller through the vehicle Ethernet. The vehicle body domain controller translates it and gives an advertising mode signal and advertising information instruction to the light-emitting grille controller through the CAN line. The light-emitting grille translates the text signal through the internal single-chip microcomputer, calls the internal text pattern library of the light-emitting grille controller, and drives the LED lamp beads to display light. When operating on the mobile phone APP, the signal information is transmitted to the infotainment domain controller of the whole vehicle through the Internet of Things cloud, and the function is realized through the above process.

[0089] Further, the oil tank oil level sensor detects the amount of oil and sends it to the vehicle body domain controller, and the vehicle body domain controller sends the information to the light grid controller, and the light grid controller controls the LED light panel to display the mailbox oil level information, which is convenient for users to obtain the mailbox oil level state.

[0090] In summary, the LED light panel inside the light grid assembly can display caution when crossing the road, can automatically display the energy grid when the user's vehicle is charging, and can display a cool water lamp mode, a welcome mode, and an advertising mode in the user's custom mode. In the cool water lamp mode, the user can set the light-emitting mode of the LED light on the instrument panel, such as the regular water lamp effect. In the welcome mode, the user can write and screen the function to achieve the effect of welcoming someone. In the advertising mode, the whole vehicle networking advertising function is supported, which can be rented to other platforms for rent and profit, and can generate revenue for users. The LED lamp beads can achieve the above functions by software lighting timing.

[0091] In a preferred embodiment, as shown in Figure 7 The central domain controller is also used to output a water inlet warning signal when it is judged that the central domain controller is disconnected from the vehicle body domain controller.

[0092] In one specific embodiment, the central domain controller performs the water inlet warning process as follows:

[0093] Step S1, obtain the communication information of the light grid, and take communication failure as the tracking target.

[0094] Step S2, based on the communication failure time point, obtain the communication signal 72 hours before the communication failure.

[0095] Step S3, obtain the weather information and environmental water information such as whether the car front is washed 72 hours before the failure, and judge whether there is a water inlet risk:

[0096] If yes, go to step S4.

[0097] If no, go to step S5.

[0098] Step S4, try to connect the communication 3 times at intervals of 3 minutes, and judge whether it is normal:

[0099] If yes, go to step S5.

[0100] If no, go to step S7.

[0101] Step S5, restart the instruction, and perform a lamp calibration action of the LED light panel 3, and judge whether the action can be completed normally:

[0102] If yes, go to step S6.

[0103] Step S6, judge the function of the car grille to recover, do not handle.

[0104] Step S7, report after-sales replacement.

[0105] In this embodiment, by configuring the early warning component, the central domain controller outputs a water inlet warning signal when it is determined from the environment image that there is water splashing at a distance less than a preset distance threshold outside the grille component, the communication connection with the LED controller is disconnected, or the air humidity received from the outside is greater than a preset humidity threshold, which can further improve the early warning of the grille water inlet risk.

[0106] The application also provides a car comprising the above-mentioned water-proof system based on the car grille, which comprises a grille component and an early warning component for early warning of the water inlet risk of the grille component. The grille inner shell 1 and the grille outer shell 2 of the grille component are buckled to form a containing cavity, and an LED light-emitting plate 3 is arranged inside the containing cavity. The light emitted by the LED light-emitting plate 3 can be seen from the outside of the vehicle through the grille gap. The heat generated by the LED light-emitting plate 3 when working is the main factor causing the temperature rise in the containing cavity. When the grille component is installed, one side of the grille inner shell 1 is close to the vehicle body, and one side of the grille outer shell 2 faces the outside of the vehicle. An opening is arranged in the middle of the grille inner shell 1, and a rubber diaphragm 4 is embedded at the opening. According to the ideal gas state equation PV = nRT, when the temperature T in the containing cavity rises, the volume V in the containing cavity is increased through the rubber diaphragm 4, so that the pressure P in the containing cavity and the amount of substance n in the containing cavity remain unchanged. When the pressure P and the amount of substance n remain unchanged, the external gas and the moisture contained in the external gas cannot enter the containing cavity.

[0107] Further, the central domain controller outputs a water inlet warning signal when it is determined from the environment image that there is water splashing at a distance less than a preset distance threshold outside the grille component, the communication connection with the LED controller is disconnected, or the air humidity received from the outside is greater than a preset humidity threshold, which can further improve the early warning of the grille water inlet risk.

[0108] In this embodiment, in the prior art, the front and rear cover plates of the grille are buckled through the clamping groove structure. The clamping groove structure can only prevent liquid water, and the clamping groove structure itself has a gap and cannot avoid gaseous high-humidity air, so there is still a water inlet problem. The rubber diaphragm 4 of the present application can adjust the volume of the grille inner cavity by changing the shape with the change of temperature, and then adjust the air pressure in the grille inner cavity, so as to avoid the entry of external moisture into the grille due to the pressure difference between the inside and outside of the grille. The early warning component further improves the early warning of the grille water inlet risk, and facilitates the maintenance personnel to maintain the grille.

[0109] The application is not limited to the above-mentioned embodiments, and for those skilled in the art, some improvements and refinements can be made without departing from the principles of the application, and these improvements and refinements are also considered within the protection scope of the application.

Claims

1. A car grille based water proof system characterized by, The system comprises: a grating assembly, one side of which is provided with an opening, a rubber diaphragm is arranged in the opening, and an LED light-emitting plate is arranged inside the grating assembly; a warning assembly, which comprises a vehicle camera and a central domain controller, the vehicle camera is used to collect environmental images outside the grating assembly, and the central domain controller outputs a water inlet warning signal when it is determined according to the environmental images that there is water splashing less than a preset distance threshold outside the grating assembly, the LED light-emitting plate is disconnected in communication, or the air humidity received from the outside is greater than a preset humidity threshold; the central domain controller is further used to acquire communication information of the light-emitting grating, take communication failure as a tracking target, based on a communication failure time point, acquire communication signals of a specified time length before the communication failure by backtracking, acquire environmental rainwater information including weather information and whether the vehicle front face is washed in the specified time length before the communication failure, and determine whether there is a water inlet risk, if yes, perform multiple communication connections at intervals of a specified time length, if the communication connection is restored to normal, output a restart instruction, control the LED light-emitting plate to perform a light fixture calibration action once, and determine that the vehicle grating function is restored when the light fixture calibration is normally completed, if the communication connection cannot be restored to normal or cannot normally complete the light fixture calibration after being restored to normal, apply for after-sales replacement.

2. The automotive grille-based water deflection system of claim 1, wherein, The grating assembly comprises a grating inner shell, a grating outer shell, an LED light-emitting plate, and a rubber diaphragm, the grating inner shell and the grating outer shell are buckled to form a containing cavity, a sealing device is arranged at the buckling position between the grating inner shell and the grating outer shell, and the middle part of the grating inner shell is provided with the opening, and the end part of the rubber diaphragm is fixed at the opening; The LED light-emitting plate is arranged in the containing cavity, and the LED light-emitting plate comprises an LED controller and an LED lamp bead matrix.

3. The automotive grille-based water deflector system of claim 2, wherein, The grating outer shell is formed by injection molding of a transparent material, the inner surface of the grating outer shell facing the grating inner shell is provided with a colored coating, and the outer surface of the grating outer shell away from the grating inner shell is provided with a colorless transparent coating; The colorless transparent coating is a chemical coating.

4. The automotive grille-based water deflector system of claim 2, wherein, The pressure difference between the inside and outside of the containing cavity of the grating assembly is calculated by the following formula: wherein, for indicating a pressure difference between the inside of the housing cavity of the grid assembly and the outside of the housing cavity when the LED light panel is to be turned off; for indicating the air pressure in the receiving cavity of the grid assembly when the LED light panel is in operation; to represent the temperature of the air in the receiving cavity of the grid assembly when the LED light panel is in operation; to indicate the temperature of the air in the housing cavity of the grid assembly at the end of operation of the LED light panel.

5. The automotive grille based water barrier system of claim 4, wherein, The deformable volume of the rubber diaphragm is calculated by the following formula: wherein, a deformable volume for representing a rubber diaphragm; for indicating a pressure difference between the inside of the housing cavity of the grid assembly and the outside of the housing cavity when the LED light panel is to be turned off; R for representing the gas constant; n represents the amount of substance.

6. The automotive grille-based water deflection system of claim 2, wherein, The system further comprises: a vehicle body domain controller, which is used to collect vehicle operation information and process to obtain a light display signal, and the vehicle body domain controller sends the light display signal to the LED controller, and the LED controller controls the LED lamp bead matrix to perform corresponding light display.

7. The automotive grille-based water deflection system of claim 6, wherein, The vehicle operation information comprises vehicle speed information and distance information of the vehicle and pedestrians; The vehicle body domain controller controls the LED light-emitting plate to display distance warning information through the light display signal when it is determined according to the vehicle speed information and the distance information of the vehicle and pedestrians that the distance between the vehicle and the pedestrians is less than a preset safety distance threshold.

8. The automotive grille-based water deflection system of claim 6, wherein, The vehicle operation information comprises vehicle charging information; The vehicle body domain controller controls the LED light-emitting plate to display low battery warning information and charging status information through the light display signal when it is determined according to the vehicle charging information that the battery is low or the battery is charging.

9. The automotive grille-based water deflection system of claim 6, wherein, The vehicle operation information comprises self-defined information; The body domain controller controls the LED light-emitting plate to display corresponding customized content according to the customized information through the light display signal.

10. The automotive grille-based water deflection system of claim 6, wherein, The central domain controller is further configured to output a water inlet early warning signal when it is determined that the central domain controller is disconnected from the body domain controller.

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