Vehicle-mounted display screen and vehicle

Abstract

The application relates to a vehicle-mounted display screen and a vehicle, and belongs to the field of vehicle display devices. The vehicle-mounted display screen comprises a backlight shell, the surface of the backlight shell is provided with a circuit board assembly area, an inner lap joint portion and an outer lap joint portion are continuously arranged along the outer edge of the circuit board assembly area, the outer lap joint portion is arranged on the side, away from the circuit board assembly area, of the inner lap joint portion, a water guide groove is arranged between the inner lap joint portion and the outer lap joint portion, a rear cover is provided with a plug-in plate extending towards the backlight shell along the outer edge of the rear cover, and the outer side of the plug-in plate is continuously provided with a lap plate. When the rear cover is assembled to the circuit board assembly area, the plug-in plate is embedded in the water guide groove, and the lap plate is attached to the side, of the outer lap joint portion, facing the rear cover. The application can effectively block the path of water droplets penetrating into the circuit board assembly area, avoid the direct contact of water droplets with the circuit board, prevent the damage of the circuit board due to water ingress, and improve the waterproof performance and service life of the vehicle-mounted display screen.

Description

Technical Field

[0001] This application relates to the field of vehicle display devices, and more particularly to an in-vehicle display screen and a vehicle. Background Technology

[0002] As the core interactive carrier in the car cabin, the role and significance of in-vehicle displays are becoming increasingly prominent. They are not only a key window for drivers to obtain vehicle information (such as speed, fuel level, navigation route, etc.), but also an important platform for realizing human-vehicle interaction and expanding entertainment functions, directly affecting driving convenience, safety, and passenger experience.

[0003] However, if water droplets or moisture enter the display screen, it can cause great harm. At best, it can damage internal components, causing water stains, shadows, and other abnormalities in the display area, affecting the clear presentation of information and interfering with the driver's judgment. At worst, due to the conductivity of water droplets, they can seep into the circuit board and cause short circuits, leading to the failure of the circuit board and the inability of the display screen to work. It may even cause the circuit to burn out, affecting the normal operation of other electronic systems in the car and creating serious safety hazards.

[0004] Currently, many in-vehicle displays have relatively simple structural designs and lack effective waterproofing measures. This makes them susceptible to damage during rain, car washes, or when spills occur inside the vehicle, or when condensation forms, as water droplets can easily seep into the display, corroding the circuit boards and leading to malfunctions such as electronic component corrosion and short circuits. This not only severely shortens the lifespan of the in-vehicle display but also poses a threat to the overall safety of the vehicle, causing significant inconvenience and potential risks to users. Utility Model Content

[0005] This application provides an in-vehicle display screen and a vehicle, which aims to solve the problem of circuit board corrosion caused by the simple structure of existing in-vehicle displays and the easy entry of water droplets into the circuit board assembly area from the joint between the rear cover and the backlight housing by setting two parallel ribs along the outer edge of the circuit board assembly area and forming an overlapping structure with the plug-in plate and overlapping plate on the rear cover.

[0006] To achieve the above objectives, this application adopts the following technical solution: This application provides an in-vehicle display screen, including: The backlight housing has a circuit board assembly area on one side; a water guide groove and an outer overlap are continuously provided along the outer edge of the circuit board assembly area, and the side wall of the water guide groove away from the circuit board assembly area is the side wall of the outer overlap. The back cover has a continuous insertion plate extending toward the backlight housing along its outer edge, and an overlapping plate is continuously provided on the side of the insertion plate away from the center of the back cover. The plug plate is used to be embedded in the water guide groove, and the overlapping plate is attached to the side of the outer overlapping part facing the rear cover.

[0007] In the above embodiments, this application, by setting a water guide channel and an outer overlap portion on the outer edge of the circuit board assembly area, and forming a labyrinthine overlap structure with the plug plate and overlap plate of the rear cover, can effectively block the path of water droplets seeping into the circuit board assembly area; even if water droplets seep in from the gap between the overlap plate and the outer overlap portion, they will be blocked by the plug plate and eventually flow into the water guide channel and be guided to the bottom. This design, through the synergistic effect of double barrier and directional flow guidance, ensures that water droplets cannot directly contact the circuit board, which not only avoids damage to components due to water ingress, but also concentrates and guides a small amount of seeping water droplets to the bottom through the water guide channel, fundamentally preventing damage to the circuit board due to water ingress, and significantly improving the waterproof performance and service life of the vehicle display screen.

[0008] In some embodiments of this application, an inner overlap portion is continuously provided along the outer edge of the circuit board assembly area, and the side wall of the water guide groove near the circuit board assembly area is the side wall of the inner overlap portion.

[0009] In the above embodiments, this application clarifies that the water guide channel is composed of an outer overlapping part and an inner overlapping part, and the side wall of the inner overlapping part away from the circuit board assembly area is the side wall of the water guide channel near that area. This clearly defines the boundary of the water guide channel and clarifies that the water guide channel's blocking and guiding path for water droplets relies on the channel space formed by the inner and outer overlapping parts, thereby improving the waterproof effect.

[0010] In some embodiments of this application, the inner overlapping portion has a first notch on the side of the backlight housing facing the bottom of the vehicle, and the outer overlapping portion has a second notch on the side of the backlight housing facing the bottom of the vehicle; the outer edge of the circuit board assembly area has a bottom rib on the side facing the bottom of the vehicle, and the two ends of the bottom rib are respectively connected to the outer overlapping portions on both sides of the first notch. The plug plate has a third notch on the side of the rear cover facing the bottom of the vehicle, and the outer edge of the rear cover has a bottom protrusion that matches the bottom rib on the side facing the bottom of the vehicle.

[0011] In the above embodiments, this application takes into account the vertical setting of the vehicle display screen, and eliminates the inner and outer overlapping parts on the side of the circuit board assembly area facing the bottom of the vehicle. It only uses the bottom rib to cooperate with the bottom boss of the rear cover, which can not only ensure the sealing and protection effect of the bottom, but also reduce unnecessary rib structure, save material costs, and ensure the rationality of the overall structure and waterproof reliability.

[0012] In some embodiments of this application, each end of the bottom rib is provided with a water passage hole, which is used to drain water droplets in the water guide groove to the outside of the vehicle display screen.

[0013] In the above embodiments, this application clarifies the discharge path of water droplets in the water guide channel by setting water passage holes at both ends of the bottom rib, so that water droplets entering the water guide channel can be quickly discharged to the outside of the vehicle display screen through the water passage holes, avoiding water droplets from accumulating in the water guide channel and seeping into the circuit board assembly area, further improving the waterproof effect and ensuring the stability of the drainage function.

[0014] In some embodiments of this application, the height of both the outer overlap and the inner overlap is 8mm to 10mm, and the height of the inner overlap is less than or equal to the height of the outer overlap. The vertical distance between the side of the plug-in plate facing the backlight housing and the side of the overlapping plate facing the backlight housing is 3mm to 5mm.

[0015] In the above embodiments, the depth of the water channel is limited to 8mm to 10mm. This parameter setting ensures that the water channel has sufficient water-holding and guiding space to effectively accommodate and smoothly guide infiltrated water droplets, while avoiding structural redundancy due to excessive depth. This optimizes the structural design while ensuring waterproof performance. At the same time, the vertical distance between the plug plate and the overlapping plate facing the backlight housing is specified to be 3mm to 5mm. This distance is adapted to the depth of the water channel, so that the plug plate is not completely inserted into the water channel, but maintains a certain distance from the bottom of the water channel. This, together with the inner overlapping part, the outer overlapping part, and the overlapping plate, forms a tight labyrinth-like mating structure, which not only preserves the flow space of water droplets in the water channel, but also enhances the waterproof effect through multi-layer barrier.

[0016] In some embodiments of this application, a backlight assembly area is provided on the side of the backlight housing that is away from the circuit board assembly area, and a glass cover is provided on the backlight assembly area; Closed dispensing bosses are continuously provided along the outer edge of the backlight assembly area. The side of the dispensing boss facing the glass cover plate is the dispensing surface, and the dispensing surface is covered with adhesive for bonding the glass cover plate.

[0017] In the above embodiments, this application provides a continuous closed dispensing boss on the outer edge of the backlight assembly area to ensure that the adhesive is not interrupted. The adhesive on the dispensing surface achieves a complete sealed bonding between the glass cover and the backlight housing, preventing water droplets, moisture and dust from entering the backlight assembly area from the connection between the two, preventing display abnormalities such as foreign objects and water stains in the display area, and ensuring the stability and clarity of the display effect.

[0018] In some embodiments of this application, a closed anti-overflow protrusion is continuously provided along the outer edge of the dispensing protrusion, the anti-overflow protrusion being used to prevent hot melt adhesive from overflowing to the outside of the vehicle display screen.

[0019] In the above embodiments, this application provides a continuous closed anti-overflow boss along the outer edge of the dispensing boss, which can effectively prevent adhesive (such as hot melt adhesive) from overflowing to the outside of the vehicle display screen, avoid appearance defects caused by glue overflow, and ensure the aesthetics and assembly quality of the product.

[0020] In some embodiments of this application, a plurality of height limiting blocks are spaced apart on the dispensing surface.

[0021] In the above embodiments, this application provides several height limiting blocks at intervals on the dispensing surface, which can effectively control the dispensing height, ensure the consistency of the dispensing height, and ensure that the adhesive can evenly and fully bond the glass cover plate and the backlight housing, thereby improving the sealing effect and structural stability.

[0022] In some embodiments of this application, the circuit board assembly area is provided with a plurality of flexible flat cable openings for flexible flat cables to pass through, and a sealing sticker is affixed to the flexible flat cable openings to seal the openings.

[0023] In the above embodiments, the present application affixes a sealing sticker to the opening of the flexible flat cable, which can effectively seal the opening, isolate the space on both sides of the opening, and prevent water droplets, water vapor and dust from entering the circuit board assembly area or backlight assembly area from the opening of the flexible flat cable, thereby preventing damage to the circuit board and abnormal display area, and further improving the overall dustproof and waterproof performance of the vehicle display screen.

[0024] In addition, this application also provides a vehicle including a vehicle body, an instrument panel and the aforementioned vehicle display screen; The dashboard is installed inside the vehicle body, and the rear cover of the in-vehicle display screen is connected to the dashboard.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0026] Figure 1 This is an exploded view of the overall structure of the vehicle-mounted display screen provided in the embodiments of this application; Figure 2 This is a first-view structural diagram of the backlight housing provided in an embodiment of this application; Figure 3 yes Figure 2 Enlarged view of part A in the middle; Figure 4 This is a schematic diagram of the backlight housing structure from a second perspective provided in an embodiment of this application; Figure 5 yes Figure 4 Enlarged view of part B in the middle; Figure 6 This is a third-view structural diagram of the backlight housing provided in an embodiment of this application; Figure 7 yes Figure 6 Enlarged view of part C in the middle; Figure 8 This is a schematic diagram of the fourth-view structure of the backlight housing provided in the embodiments of this application; Figure 9 yes Figure 8 Enlarged view of part D in the middle; Figure 10 This is a schematic diagram of the fifth-view structure of the backlight housing provided in the embodiments of this application; Figure 11 yes Figure 10 Enlarged view of part E in the middle; Figure 12 This is a schematic diagram of the structure of the flexible flat cable with a sealing sticker pasted at the opening provided in this application embodiment; Figure 13 This is a first-view structural diagram of the back cover provided in an embodiment of this application; Figure 14 yes Figure 13 Enlarged view of part F in the middle; Figure 15 This is a second-view structural diagram of the back cover provided in an embodiment of this application; Figure 16 yes Figure 15 Enlarged schematic diagram of part G in the middle.

[0027] In the above figures: 100, glass cover plate; 200, backlight housing; 210, adhesive dispensing boss; 211, anti-overflow boss; 212, height limit block; 220, backlight assembly area; 230, circuit board assembly area; 231, inner overlap; 231a, screw hole seat; 231b, reinforcing rib; 232, outer overlap; 233, bottom protruding rib; 234, flexible flat cable opening; 235, water guide channel; 236, water passage hole; 240, adhesive; 300, flexible flat cable; 400, circuit board; 500, sealing sticker; 600, back cover; 610, plug-in board; 620, overlap board; 630, bottom boss. Detailed Implementation

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0031] Additionally, if the meaning of "and / or" in the text is that it includes three parallel options, taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0032] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0033] With the booming development of the automotive industry, in-vehicle displays generally adopt a dual-screen design for the central control and passenger side, and use a semi-floating mounting method (that is, the in-vehicle display uses a narrow bezel and a discontinuous design to make the screen partially protrude from the dashboard, taking into account both the reliability of embedded installation and the light and thin visual appearance of floating), in order to meet the current aesthetic needs of passengers; therefore, the market has increasingly higher requirements for the dustproof and waterproof properties of the display.

[0034] As the core interactive carrier in the car cabin, the role and significance of in-vehicle displays are becoming increasingly prominent. They are not only a key window for drivers to obtain vehicle information (such as speed, fuel level, navigation route, etc.), but also an important platform for realizing human-vehicle interaction and expanding entertainment functions, directly affecting driving convenience, safety, and passenger experience.

[0035] However, if water droplets or moisture enter the display screen, the consequences can be severe. At best, it can damage internal components, causing water stains, shadows, and other abnormalities on the display area, affecting the clarity of information presentation and interfering with the driver's judgment. At worst, the conductivity of water droplets can cause short circuits after seeping into the circuit board, leading to circuit board failure, display malfunction, or even circuit burnout, affecting the normal operation of other automotive electronic systems and creating serious safety hazards. Especially with semi-floating displays, dust and moisture are more likely to enter through structural gaps, causing display abnormalities such as foreign objects and water stains. Simultaneously, water droplets and dust can also enter the backlight through openings in the flexible ribbon cable of the display backlight housing, similarly causing display abnormalities. Furthermore, water droplets entering the circuit board assembly area can also cause circuit board malfunctions.

[0036] Currently, many in-vehicle displays have relatively simple structural designs and lack effective waterproofing measures. This makes it easier for water droplets to seep into the display screen through gaps when the vehicle is in the rain, during car washes, or when drinks are spilled or condensation forms inside the car. This water can corrode the circuit boards, leading to malfunctions such as electronic component corrosion and short circuits. This not only severely shortens the lifespan of the in-vehicle display screen but also poses a threat to the overall safety of the vehicle, causing significant inconvenience and potential risks to users.

[0037] Based on this, this application proposes an in-vehicle display screen and a vehicle. By setting inner and outer overlapping parts and water guide grooves 235 on the outer edge of the circuit board assembly area 230 of the backlight housing 200, a labyrinth-like protective structure is formed in conjunction with the plug-in plate 610 and overlapping plate 620 of the rear cover 600. A continuous adhesive protrusion 210 is set on the outer edge of the backlight assembly area 220 to seal the glass cover plate 100. A sealing sticker 500 is set at the flexible cable opening 234. This achieves effective dust and water protection for the display area, the backlight interior and the circuit board assembly area 230, and solves the problem that in-vehicle displays, especially semi-floating in-vehicle displays, are prone to display abnormalities and circuit board 400 failures due to water droplets and dust intrusion. It meets the IP5K2 dust and water resistance requirements.

[0038] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0039] As attached Figures 1 to 16 As shown in an illustrative embodiment of this application, the vehicle display screen includes a glass cover 100, which is used to protect the display panel of the display screen and prevent external hard objects from scratching or colliding and damaging the display area; at the same time, as an outer layer of protection for the display interface, it works with the adhesive protrusion 210 and adhesive 240 on the backlight housing 200 to achieve a seal, preventing moisture and dust from entering the backlight from the edge gaps, ensuring that the display image is clear and stable, and maintaining a good visual presentation effect.

[0040] In some embodiments, such as Figure 6 As shown, the vehicle display screen includes a backlight housing 200, and a circuit board assembly area 230 is provided on one side surface of the backlight housing 200. This area is specifically used to accommodate and fix the circuit board 400, providing installation space and structural support for the circuit board 400.

[0041] In some embodiments, such as Figure 7 , 9 As shown, an outer overlap portion 232 is continuously provided along the outer edge of the circuit board assembly area 230.

[0042] In some embodiments, a water guide groove 235 is continuously provided along the outer edge of the circuit board assembly area 230, and the side wall of the outer overlap 232 facing the circuit board assembly area 230 is the side wall of the water guide groove 235 away from the circuit board assembly area 230.

[0043] In some embodiments, an inner overlapping portion 231 is continuously provided along the outer edge of the circuit board assembly area 230. The sidewall of the inner overlapping portion 231 facing away from the circuit board assembly area 230 is the sidewall of the water guide channel 235 near the circuit board assembly area 230. An outer overlapping portion 232 is sleeved on the outer periphery of the inner overlapping portion 231. The inner overlapping portion 231 is close to the circuit board assembly area 230, and the outer overlapping portion 232 is away from the circuit board assembly area 230. The water guide channel 235 is disposed between the inner overlapping portion 231 and the outer overlapping portion 232.

[0044] In some embodiments, the water guide groove 235 is recessed toward the glass cover plate 100, specifically, it is recessed along the outer edge of the circuit board assembly area 230. In this case, the outer overlap portion 232 is the edge of the backlight housing 200 on the side of the water guide groove 235 away from the circuit board assembly area 230, and the inner overlap portion is the edge of the backlight housing 200 on the side of the water guide groove 235 closer to the circuit board assembly area 230.

[0045] In some embodiments, the water channel 235 is recessed towards the glass cover 100, and the outer overlapping portion 232 protrudes from the surface of the backlight housing 200. The sidewall of the outer overlapping portion 232 facing the circuit board assembly area 230 is the sidewall of the water channel 235 away from the circuit board assembly area 230. The inner overlapping portion is the edge of the backlight housing 200 located on the side of the water channel 235 near the circuit board assembly area 230. Specifically, the height of the outer overlapping portion 232 facing the back cover is higher than the height of the edge of the water channel 235 near the circuit board assembly area 230, forming a stepped structure with a higher outer side and a lower inner side.

[0046] In some embodiments, both the inner overlapping portion 231 and the outer overlapping portion 232 protrude from the surface of the backlight housing 200 in the same direction, and the distance between them is equal everywhere. The groove space formed between the inner overlapping portion 231 and the outer overlapping portion 232 is the water guide channel 235. This structural design, through the relative arrangement of the two protrusions, naturally encloses a water guide channel with a clear boundary, which simplifies the structural molding process and enhances the constraint and guidance function of water flow through the three-dimensional shape of the double protrusions, creating the basic conditions for the subsequent mating with the back cover to form a labyrinth seal.

[0047] In some embodiments, such as Figure 13 As shown, the vehicle display screen includes a rear cover 600, which is used to cover and enclose the circuit board assembly area 230 of the backlight housing 200, providing physical protection for the internal circuit board 400 and preventing external foreign objects from directly contacting the circuit board 400.

[0048] In some embodiments, such as Figure 14 , 16As shown, a plug-in plate 610 extending towards the backlight housing 200 is continuously provided along the outer edge of the rear cover 600. The plug-in plate 610 is used to insert into the water guide groove 235. Its two sides form a gap fit with the inner overlapping part 231 and the outer overlapping part 232 respectively. Together with the inner overlapping part 231, the outer overlapping part 232 and the overlapping plate 620 of the rear cover 600, it forms a labyrinth waterproof structure. Through multiple blocking paths, it effectively delays and blocks water droplets from seeping into the circuit board assembly area 230, thereby enhancing the overall waterproof effect.

[0049] In some embodiments, the side of the plug plate 610 facing the outer overlap 232 is tightly fitted with the outer overlap 232 to obtain a better waterproof effect.

[0050] In some embodiments, the plug plate 610 is continuously provided with an overlapping plate 620 on the side away from the center of the back cover 600. This can also be understood as the plug plate 610 being continuously provided with an overlapping plate 620 on the side facing the outer overlapping portion 232. This facilitates the overlapping plate 620 to be fastened onto the outer overlapping portion 232 after the plug plate 610 is inserted into the water guide groove 235. The overlapping plate 620 extends away from the center area of ​​the back cover 600 and can be tightly fitted to the side of the outer overlapping portion 232 of the backlight housing 200 facing the back cover 600 during assembly. The overlapping plate 620, the plug plate 610, the inner overlapping portion 231, and the outer overlapping portion 232 form a cooperative cooperation. The tightness of the edge seal is enhanced by the fit of the overlapping plate 620, and the labyrinth waterproof system is strengthened together with the insertion structure of the plug plate 610 in the water guide groove 235, further improving the ability to block water droplet penetration.

[0051] Preferably, the plug plate 610 and the lap plate 620 are vertically connected.

[0052] When the back cover 600 is assembled into the circuit board assembly area 230, the plug plate 610 is embedded in the water guide groove 235 between the inner overlapping part 231 and the outer overlapping part 232; at the same time, the overlapping plate 620 is tightly attached to the side of the outer overlapping part 232 facing the back cover 600. The insertion of the plug plate 610 into the water guide groove 235 and the attachment of the overlapping plate 620 form a double seal. The two, together with the inner and outer ribs, form a complete labyrinth-style protective structure, effectively blocking the path of water droplets from the edge gaps into the circuit board assembly area 230.

[0053] Specifically, this application provides an inner overlapping portion 231 and an outer overlapping portion 232 on the outer edge of the circuit board assembly area 230, which, together with the plug-in plate 610 and the overlapping plate 620 of the back cover 600, form a labyrinthine overlapping structure, which can effectively block the path of water droplets seeping into the circuit board assembly area 230: when water droplets enter the water guide channel 235 from the gap between the overlapping plate 620 and the outer overlapping portion 232, they either flow directly along the water guide channel 235 between the inner overlapping portion 231 and the outer overlapping portion 232 to the bottom of the water guide channel 235, or when they flow along the back cover 600, they are blocked by the plug-in plate 610 and flow into the water guide channel 235, and then also flow along the water guide channel 235 to the bottom of the water guide channel 235. This structural design effectively prevents water droplets from entering through the gap between the overlapping plate 620 and the outer overlapping part 232, and then continuing to penetrate into the circuit board assembly area 230 through the gap between the rear cover 600 and the inner overlapping part 231. This avoids water droplets directly contacting the circuit board 400, preventing it from being damaged by water ingress, and significantly improving the waterproof performance and service life of the vehicle display screen.

[0054] In some embodiments, the inner overlapping portion 231 and the outer overlapping portion 232 are at the same height, that is, the vertical distance between the inner overlapping portion 231 near the rear cover 600 and the bottom of the water guide channel 235 is equal to the vertical distance between the outer overlapping portion 232 near the rear cover 600 and the bottom of the water guide channel 235.

[0055] In some embodiments, the inner overlapping portion 231 is fitted to the rear cover 600 on the side facing the rear cover 600 to achieve a double-layer sealing effect.

[0056] In some embodiments, such as Figure 9 As shown, the inner overlapping part 231 is provided with a number of screw hole seats 231a at intervals, and each screw hole seat 231a is provided with a screw hole. During assembly, the bolt passes through the through hole at the corresponding position of the back cover 600 and is screwed into the screw hole, thereby tightly fixing the back cover 600 to the circuit board assembly area 230 of the backlight housing 200. Through the tight fit between the screw hole seat 231a and the bolt, the sealing performance between the back cover 600 and the housing is further enhanced, reducing the risk of moisture and dust seeping into the gaps.

[0057] In some embodiments, the water guide groove 235 is provided with a plurality of reinforcing ribs 231b, and the number of reinforcing ribs 231b is the same as the number of screw hole seats 231a on the inner overlapping part 231. These reinforcing ribs 231b are correspondingly connected between the screw hole seats 231a and the outer overlapping part 232, which can form a structural support for the screw hole seats 231a, enhance its stability and anti-deformation ability when subjected to force (such as bolt tightening), and avoid damage to the screw hole seats 231a due to excessive force, thereby ensuring the firmness and sealing effect of the connection between the back cover 600 and the backlight housing 200.

[0058] Furthermore, each reinforcing rib 231b is provided with a water passage hole, which allows water droplets entering the water guide channel 235 to pass smoothly through the reinforcing rib 231b, avoiding water droplets from accumulating in the water guide channel 235 due to obstruction by the reinforcing rib 231b, thereby guiding the water droplets to the bottom of the water guide channel 235 more smoothly, ensuring that the guiding function of the water guide channel 235 is not affected, and enhancing the overall drainage efficiency.

[0059] In some embodiments, the inner overlapping portion 231 and the outer overlapping portion 232 are both continuously arranged along the outer edge of the circuit board assembly area 230 without interruption, thereby forming two nested closed ring structures. This closed design can surround the circuit board assembly area 230 in all directions, ensuring that there are no blind spots in blocking water droplets and dust. Together with the water guide channel 235 between the two, a complete protection and drainage system can be formed in the entire outer edge direction, further improving the protection effect of the circuit board 400.

[0060] Furthermore, the outer overlap 232 is provided with several water passage holes 236 on the side of the vehicle display screen facing the bottom of the vehicle to drain water droplets that accidentally enter the water guide channel 235.

[0061] In some embodiments, the inner overlapping portion 231 has a first notch on the side of the backlight housing 200 facing the bottom of the vehicle, and the outer overlapping portion 232 has a second notch on the side of the backlight housing 200 facing the bottom of the vehicle. In other words, the inner overlapping portion 231 and the outer overlapping portion 232 are located at both ends and the top of the backlight housing 200 in the horizontal direction; specifically, the circuit board assembly area 230 is generally rectangular with four edges, and the inner overlapping portion 231 and the outer overlapping portion 232 are continuously arranged along three of these edges, only breaking off at the edge facing the bottom of the vehicle, that is, no inner overlapping portion 231 and outer overlapping portion 232 are provided on this side edge. This design not only ensures complete protection for the top, left, and right sides of the circuit board assembly area 230, but also conforms to the characteristic of water droplets naturally falling when the vehicle display is vertically installed, optimizing the waterproof effect while avoiding structural redundancy.

[0062] In some embodiments, the outer edge of the circuit board assembly area 230 is provided with a bottom rib 233 on the side facing the bottom of the vehicle. The bottom rib 233 is used to fill the first gap. The two ends of the bottom rib 233 are respectively connected to the outer overlapping portions 232 on both sides of the first gap, so that the outer overlapping portions 232 and the bottom rib 233 together form a closed ring structure.

[0063] In some embodiments, the plug plate 610 has a third notch on the side of the rear cover 600 facing the bottom of the vehicle; specifically, the plug plate 610 is provided at both ends and the top of the rear cover 600 in the horizontal direction; specifically, the rear cover 600 is generally rectangular and has four edges, the plug plate 610 is continuously provided along three of these edges, and is only interrupted at the edge facing the bottom of the vehicle, that is, no plug plate 610 is provided at this edge.

[0064] In some embodiments, the outer edge of the rear cover 600 is provided with a bottom protrusion 630 on the side facing the bottom of the vehicle. The bottom protrusion 630 is used to fill the third gap. The bottom protrusion 630 corresponds to the bottom rib 233 on the backlight housing 200. When the rear cover 600 is assembled to the backlight housing 200, the bottom protrusion 630 can fit tightly with the bottom rib 233, thereby forming an effective seal on the side of the rear cover 600 facing the bottom of the vehicle.

[0065] In the above embodiments, this application takes into account the vertical setting of the vehicle display screen, and eliminates the inner overlap 231 and outer overlap 232 on the side of the circuit board assembly area 230 facing the bottom of the vehicle. It only cooperates with the bottom boss 630 of the rear cover 600 through the bottom rib 233. This can not only ensure the sealing and protection effect of the bottom, but also reduce unnecessary rib structure, save material costs, and at the same time ensure the rationality of the overall structure and the reliability of waterproofing.

[0066] In some embodiments, each end of the bottom rib 233 is provided with a water passage hole 236. The water passage hole 236 is located near the connection between the bottom rib 233 and the outer overlap portion 232. The water passage hole 236 is used to drain the water droplets in the water guide channel 235 to the outside of the vehicle display screen.

[0067] In the above embodiments, this application provides water passage holes 236 at both ends of the bottom rib 233, which clarifies the discharge path of water droplets in the water guide groove 235. This allows water droplets entering the water guide groove 235 to be quickly discharged to the outside of the vehicle display screen through the water passage holes 236, preventing water droplets from accumulating in the water guide groove 235 and seeping into the circuit board assembly area 230. This further improves the waterproof effect and ensures the stability of the drainage function.

[0068] In some embodiments, the vertical distance between the side of the inner overlapping portion 231 facing the rear cover 600 and the bottom of the water guide channel 235 is 8 mm to 10 mm, and the vertical distance between the side of the outer overlapping portion 232 facing the rear cover 600 and the bottom of the water guide channel 235 is 8 mm to 10 mm; the vertical distance between the side of the inner overlapping portion 231 facing the rear cover 600 and the bottom of the water guide channel 235 is less than or equal to the vertical distance between the side of the outer overlapping portion 232 facing the rear cover 600 and the bottom of the water guide channel 235.

[0069] Preferably, the vertical distance between the inner overlapping portion 231 facing the rear cover 600 and the outer overlapping portion 232 facing the rear cover 600 and the bottom of the water guide groove 235 is 8.9 mm.

[0070] In the above embodiments, the depth of the water channel 235 is limited to 8 mm to 10 mm, which ensures that the water channel 235 has sufficient water holding and guiding space to effectively accommodate and guide the infiltrated water droplets, while avoiding structural redundancy due to excessive depth. This optimizes the structural design while ensuring waterproof performance.

[0071] In some embodiments, the vertical distance between the side of the plug plate 610 facing the backlight housing 200 and the side of the overlapping plate 620 facing the backlight housing 200 is 3 mm to 5 mm, that is, there is a height difference of 3 mm to 5 mm between the plug plate 610 and the overlapping plate 620.

[0072] Preferably, the vertical distance between the side of the plug plate 610 facing the backlight housing 200 and the side of the overlapping plate 620 facing the backlight housing 200 is 4.06 mm.

[0073] In the above embodiments, this application specifies that the vertical distance between the plug plate 610 and the overlapping plate 620 facing the backlight housing 200 is 3mm to 5mm, which is in deep fit with the water guide groove 235, so that the plug plate 610 can be stably embedded in the water guide groove 235, forming a tight labyrinth-like fit structure with the inner overlapping part 231, the outer overlapping part 232 and the overlapping plate 620, which enhances the ability to block water droplet penetration and further refines the structural parameters.

[0074] In some embodiments, the minimum distance between the inner overlap 231 and the outer overlap 232 is 4 mm to 6 mm.

[0075] Preferably, the minimum distance between the inner overlap 231 and the outer overlap 232 is 5.13 mm.

[0076] In some embodiments, such as Figure 2 As shown, the backlight housing 200 has a backlight assembly area 220 on the side opposite to the circuit board assembly area 230, and the glass cover plate 100 covers the backlight assembly area 220; the backlight assembly area 220 is used to assemble the display panel and backlight components, providing a stable installation space and structural positioning for both.

[0077] In some embodiments, such as Figure 5As shown, a closed dispensing boss 210 is continuously provided along the outer edge of the backlight assembly area 220. The dispensing boss 210 surrounds the entire backlight assembly area 220 without any breaks. The side of the dispensing boss 210 facing the glass cover plate 100 is a flat dispensing surface, on which adhesive 240 for bonding the glass cover plate 100 is evenly distributed. When the glass cover plate 100 is assembled into the backlight assembly area 220, the adhesive 240 can tightly connect the glass cover plate 100 and the backlight housing 200 along the closed dispensing surface, forming a continuous and complete sealing band. This effectively prevents water droplets, moisture, and dust from entering the backlight assembly area 220 from the connection between the glass cover plate 100 and the backlight housing 200, ensuring that the display panel and backlight assembly are not affected by external contaminants and maintaining the clarity and stability of the displayed image.

[0078] In the above embodiments, this application provides a continuously closed dispensing boss 210 on the outer edge of the backlight assembly area 220 to ensure that the adhesive is not interrupted. The adhesive 240 on the dispensing surface achieves a complete sealed bond between the glass cover plate 100 and the backlight housing 200, preventing water droplets, moisture and dust from entering the backlight assembly area 220 from the connection between the two, preventing display abnormalities such as foreign objects and water stains in the display area, and ensuring the stability and clarity of the display effect.

[0079] In some embodiments, the adhesive 240 may be one or more combinations of hot melt adhesive, liquid optical adhesive, modified acrylic structural adhesive, two-component silicone adhesive, or foam tape.

[0080] Preferably, the adhesive 240 is a hot melt adhesive.

[0081] In some embodiments, a closed anti-overflow boss 211 is continuously provided along the outer edge of the dispensing boss 210; specifically, the anti-overflow boss 211 protrudes from the dispensing surface; the anti-overflow boss 211 is used to prevent hot melt adhesive from overflowing to the outside of the vehicle display screen.

[0082] In the above embodiments, the present application provides a continuous closed anti-overflow boss 211 along the outer edge of the dispensing boss 210, which can effectively prevent the adhesive 240 (such as hot melt adhesive) from overflowing to the outside of the vehicle display screen, avoid appearance defects caused by glue overflow, and ensure the aesthetics and assembly quality of the product.

[0083] In some embodiments, a plurality of height limiting blocks 212 are spaced apart on the dispensing surface.

[0084] In some embodiments, the vertical distance between the side of the height limiting block 212 facing the glass cover plate 100 and the adhesive dispensing surface is set to 0.4 mm to 0.6 mm. This distance design can prevent the height limiting block 212 from exceeding the assembly gap between the glass cover plate 100 and the backlight housing 200 due to excessive height, ensuring that the glass cover plate 100 can be tightly attached to the adhesive 240 on the adhesive dispensing boss 210, which not only ensures the bonding and sealing effect, but also prevents the height limiting block 212 from causing unnecessary compression or support interference to the glass cover plate 100.

[0085] Preferably, the vertical distance between the side of the height limiting block 212 facing the glass cover plate 100 and the adhesive application surface is set to 0.5 mm.

[0086] In some embodiments, the ratio of the width of the height limiting block 212 to the width of the dispensing surface is set to 0.3 to 0.4. This ratio is designed to allow sufficient coating width for the adhesive 240 on the dispensing surface, preventing the effective adhesion area of ​​the adhesive 240 from being compressed due to the excessive space occupied by the height limiting block 212. This ensures that the adhesive 240 can fully fill the gap between the glass cover plate 100 and the dispensing protrusion 210, thereby ensuring that the bonding strength and sealing effect of the two are not affected.

[0087] In the above embodiments, this application provides a plurality of height limiting blocks 212 at intervals on the dispensing surface, which can effectively control the dispensing height, ensure the consistency of the dispensing height, and ensure that the adhesive 240 can evenly and fully bond the glass cover plate 100 and the backlight housing 200, thereby improving the sealing effect and structural stability.

[0088] In some embodiments, such as Figure 11 As shown, the circuit board assembly area 230 has several flexible flat cable openings 234 for the flexible flat cable 300 to pass through. The flexible flat cable 300 is used to connect the circuit board 400 and the display panel and backlight assembly, etc. A sealing sticker 500 is pasted at the flexible flat cable opening 234 to seal the flexible flat cable opening 234.

[0089] In some embodiments, the sealing tape 500 can be an insulating single-sided tape, or other tapes with waterproof, insect-proof and sealing effects, such as PVC tape or foam tape.

[0090] Preferably, the sealing tape 500 is an insulating single-sided adhesive tape.

[0091] In the above embodiments, the present application affixes a sealing sticker 500 at the opening 234 of the flexible flat cable, which can effectively seal the opening, isolate the space on both sides of the opening, and prevent water droplets, water vapor and dust from entering the circuit board assembly area 230 or the backlight assembly area 220 from the opening 234 of the flexible flat cable, thereby preventing damage to the circuit board 400 and abnormal display area, and further improving the overall dustproof and waterproof performance of the vehicle display screen.

[0092] In addition, this application also provides a vehicle, including a vehicle body, in which an instrument panel is provided. The instrument panel, as a core integrated component in the vehicle's cockpit, plays a key role in information display and function control. The aforementioned vehicle display screen is integrated on the instrument panel. Specifically, the rear cover 600 of the vehicle display screen is fixed to the instrument panel. The vehicle display screen is electrically connected to the control system, sensors, and other components inside the vehicle body, and can display driving-related data such as vehicle speed, remaining range, navigation information, and fault prompts in real time. It also supports touch operation to realize multimedia control, air conditioning adjustment, and other functions.

[0093] Because of its excellent waterproof and dustproof performance, structural stability and display clarity, the vehicle display can adapt to the complex environment during vehicle operation (such as vibration, temperature changes, occasional liquid splashes, etc.), ensuring stable operation during long-term use.

[0094] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A vehicle-mounted display screen, characterized in that, It includes: The backlight housing (200) has a circuit board assembly area (230) on one side; a water guide groove (235) and an outer overlap (232) are continuously provided along the outer edge of the circuit board assembly area (230), and the side wall of the water guide groove (235) away from the circuit board assembly area (230) is the side wall of the outer overlap (232). The back cover (600) has a continuous insertion plate (610) extending toward the backlight housing (200) along its outer edge. The insertion plate (610) has a continuous overlapping plate (620) on the side away from the center of the back cover (600). The plug plate (610) is used to be embedded in the water guide groove (235), and the overlapping plate (620) is attached to the side of the outer overlapping part (232) facing the rear cover (600).

2. The vehicle-mounted display screen according to claim 1, characterized in that, An inner overlap portion (231) is continuously provided along the outer edge of the circuit board assembly area (230), and the side wall of the water guide groove (235) near the circuit board assembly area (230) is the side wall of the inner overlap portion (231).

3. A vehicle-mounted display screen according to claim 2, characterized in that, The inner overlapping part (231) has a first notch on the side of the backlight housing (200) facing the bottom of the vehicle, and the outer overlapping part (232) has a second notch on the side of the backlight housing (200) facing the bottom of the vehicle; the outer edge of the circuit board assembly area (230) has a bottom rib (233) on the side facing the bottom of the vehicle, and the two ends of the bottom rib (233) are respectively connected to the outer overlapping part (232) on both sides of the first notch; The plug plate (610) has a third notch on the side of the rear cover (600) facing the bottom of the vehicle, and the outer edge of the rear cover (600) has a bottom boss (630) that matches the bottom rib (233) on the side facing the bottom of the vehicle.

4. A vehicle-mounted display screen according to claim 3, characterized in that, Each end of the bottom rib (233) is provided with a water passage hole (236), which is used to drain the water droplets in the water guide groove (235) to the outside of the vehicle display screen.

5. A vehicle-mounted display screen according to claim 4, characterized in that, The height of both the outer overlapping part (232) and the inner overlapping part (231) is 8 mm to 10 mm, and the height of the inner overlapping part (231) is less than or equal to the height of the outer overlapping part (232). The vertical distance between the side of the plug plate (610) facing the backlight housing (200) and the side of the overlapping plate (620) facing the backlight housing (200) is 3 mm to 5 mm.

6. A vehicle-mounted display screen according to any one of claims 1 to 5, characterized in that, The backlight housing (200) has a backlight assembly area (220) on the side facing away from the circuit board assembly area (230), and a glass cover plate (100) is provided on the backlight assembly area (220). Closed dispensing bosses (210) are continuously provided along the outer edge of the backlight assembly area (220). The side of the dispensing boss (210) facing the glass cover plate (100) is the dispensing surface, and the dispensing surface is covered with adhesive (240) for bonding the glass cover plate (100).

7. A vehicle-mounted display screen according to claim 6, characterized in that, A closed anti-overflow boss (211) is continuously provided along the outer edge of the dispensing boss (210). The anti-overflow boss (211) is used to prevent hot melt adhesive from overflowing to the outside of the vehicle display screen.

8. A vehicle-mounted display screen according to claim 7, characterized in that, Several height-limiting blocks (212) are spaced apart on the dispensing surface.

9. A vehicle-mounted display screen according to claim 7 or 8, characterized in that, The circuit board assembly area (230) is provided with a plurality of flexible flat cable openings (234) for flexible flat cables (300) to pass through. A sealing sticker (500) is pasted at the flexible flat cable opening (234) to seal the flexible flat cable opening (234).

10. A vehicle, characterized in that, Includes a vehicle body, an instrument panel, and an in-vehicle display screen as described in any one of claims 1 to 9; The dashboard is mounted inside the vehicle body, and the rear cover (600) of the in-vehicle display screen is connected to the dashboard.

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