A dual-screen display platform for head-up display system

Abstract

A dual-screen display platform for a head-up display system. It includes an upper screen display for AR augmented reality navigation and a lower screen display for displaying instrument information. The dual-screen display platform is composed of a PCB assembly structure, a system bottom cover, a light source structure, a split-screen light guide structure, and a system dust cover; the split-screen light guide structure includes an upper screen mirror assembly, a lower screen short mirror, a diffuser assembly, and an upper screen wide mirror arranged on the system bottom cover; the system bottom cover is flat in design, and the system bottom cover includes a lower end bottom plate, and an inclined plate extending forward and upward from the lower end bottom plate, the upper end of the inclined plate is the installation position of the upper screen wide mirror, and the lower end of the inclined plate is formed with a recessed portion, and the recessed portion is the installation position of the lower screen short mirror. The dual-screen display platform adopts a dual-optical machine and a split-screen structure. At the same time, the plane mirror and the diffuser are stably installed and have strong shock resistance. At the same time, metal and liquid heat dissipation are reasonably used for good dust resistance, so that the head-up display system is clear, stable, and comfortable.

Description

Technical Field

[0001] The present invention relates to a vehicle-mounted head-up display device, and in particular to a dual-screen display platform that uses a dual-optical machine and a split-screen structure to achieve dual-screen display, while a plane mirror and a diffuser are stably installed with strong shock resistance, while metal and liquid heat dissipation are reasonably used for good dustproofness, and light beam signal transmission attenuation is small. Background Art

[0002] With the development of the automobile industry, assisted driving technology is changing with each passing day, among which the main one is the use of vehicle-mounted head-up display devices. The role of vehicle-mounted head-up display devices is to replace the instrument and display various information needed to be understood during driving at an angle and method that is convenient for the driver to view, thereby facilitating driving and improving driving comfort.

[0003] The shortcomings of existing vehicle head-up display devices are:

[0004] 1. Most of the existing vehicle head-up display devices only have one display screen, but the information for assisted driving is relatively numerous, making the displayed content messy and poorly organized, affecting the comfort;

[0005] 2. There are many parts, the volume is large, and it is inconvenient to use;

[0006] 3. The plane mirror is easy to install, and generally no anti-vibration treatment is done. The verticality of the plane and the stability of the bonding cannot be guaranteed. The anti-vibration performance is poor, and the lens is prone to tilt and rotation, resulting in deflection and failure of the optical path.

[0007] 4. The diffuser installation structure is simple, and only a simple fixing method is used, which cannot ensure the flatness and wrinkling of the diffuser. It is easy to loosen and wrinkle, resulting in uneven beam diffusion angles, and easily causing defects such as dizziness and uneven brightness;

[0008] 5. The heat dissipation of the PCB component structure is unreasonable. Most of them adopt ventilation heat dissipation, which easily allows dust to enter the machine, causing the optical machine to freeze or be damaged due to dust, and the lens will also be blurred, affecting the visual effect;

[0009] 6. If the parts are not treated with surface coating, such as the bottom shell and bracket, the light beam is likely to produce diffuse reflection inside the equipment, affecting the transmission of the light beam signal. Summary of the invention

[0010] The purpose of the present invention is to solve the above-mentioned technical problems and to provide a dual-screen display platform for a head-up display system. The dual-screen display platform adopts a dual-optical machine and a split-screen structure to realize dual-screen display. At the same time, the plane mirror and the diffuser are installed stably and have strong shock resistance. At the same time, metal and liquid heat dissipation are reasonably used to have good dust resistance. At the same time, the surface coating of the components is processed to reduce the attenuation of the light beam signal transmission, so that the head-up display system can be clear, stable, and comfortable.

[0011] In order to solve the above-mentioned prior art problems, the technical solution of the present invention is:

[0012] The present invention provides a dual-screen display platform for a head-up display system, wherein the dual-screen display platform is used for a vehicle-mounted head-up display optical system, wherein the vehicle-mounted head-up display optical system at least includes a curved mirror, a vehicle windshield, and a human eye position, wherein the curved mirror is arranged on the dual-screen display platform, and the curved mirror is arranged below the vehicle windshield;

[0013] As an improvement, the dual-screen display platform includes an upper screen display for AR augmented reality navigation and a lower screen display for displaying instrument information. The dual-screen display platform is composed of a PCB component structure, a system bottom cover, a light source structure, a split-screen light guide structure, and a system dust cover;

[0014] As an improvement, the split-screen light-guiding structure includes an upper screen mirror assembly, a lower screen short mirror, a diffusion sheet assembly, and an upper screen wide mirror arranged on the bottom cover of the system;

[0015] As an improvement, the system bottom cover is of flat design, and the system bottom cover includes a lower bottom plate, and an inclined plate extending forward and upward from the lower bottom plate, the upper end of the inclined plate is the installation position of the upper screen wide mirror, and the lower end of the inclined plate is formed with a recessed portion, and the recessed portion is the installation position of the lower screen short mirror, the diffusion sheet assembly is fixed to the connection position between the lower bottom plate and the inclined plate, and the lower end of the diffusion sheet assembly is suspended, the system dust cover is buckled with the system bottom cover, and the system dust cover is provided with a light source window at a position above the upper screen wide mirror;

[0016] As an improvement, the upper screen mirror assembly is fixed to one side of the lower end base plate, and the diffuser assembly includes a diffuser bracket, an upper screen diffuser, a lower screen diffuser, an upper screen diffuser fixing plate, and a lower screen diffuser fixing plate. The diffuser bracket includes a connecting plate at the lower end, and a first fixing frame vertically arranged on the connecting plate, and a second fixing frame arranged on one side of the upper end of the first fixing frame. A card slot is formed on the side of the upper end of the first fixing frame opposite to the second fixing frame. The first fixing frame is formed with an embedding groove matching the upper screen diffuser fixing plate, and the second fixing frame is formed with an embedding groove matching the lower screen diffuser fixing plate. The upper screen diffuser fixing plate and the lower screen diffuser fixing plate are frame-shaped bodies. The upper screen diffuser is glued to the middle position of the upper screen diffuser fixing plate, and the four sides of the upper screen diffuser The periphery is evenly glued to the upper screen diffuser fixing sheet, and the upper screen diffuser fixing sheet is fixed in the embedding groove of the first fixing frame of the diffuser bracket. Similarly, the lower screen diffuser is glued to the lower screen diffuser fixing sheet, and the lower screen diffuser fixing sheet is fixed in the embedding groove of the second fixing frame of the diffuser bracket. The lower screen diffuser is set at a certain angle downward with the horizontal plane of the upper end of the first fixing frame as a reference. The bottom plate of the system bottom cover is vertically provided with a columnar body, and the upper end of the columnar body matches the card slot at the upper end of the first fixing frame. The upper end of the columnar body is embedded in the card slot. A plurality of symmetrically arranged screw holes are formed on the connecting plate at the lower end of the diffuser bracket, and bolts are set in the plurality of screw holes of the connecting plate to fix the diffuser bracket on the system bottom cover, and the lower end of the diffuser bracket is overhead.

[0017] As an improvement, the upper screen mirror assembly includes an upper screen mirror bracket, an upper screen mirror, an upper screen mirror shock-absorbing glue, and an upper screen mirror ultra-thin glue. The upper screen mirror bracket includes a fixing portion at the lower end, and an embedding portion vertically arranged on the fixing portion. The upper screen mirror assembly is fixed to the system bottom cover through the fixing portion. The upper screen mirror ultra-thin glue is glued to the upper end of the rear side of the upper screen mirror. The rear end surface of the embedding portion of the upper screen mirror bracket is formed as a recessed portion. The recessed surface of the recessed portion is formed as a groove structure of the same depth. The upper screen mirror is glued to the groove structure of the upper screen mirror bracket by filling glue in the groove structure of the upper screen mirror bracket. The upper screen mirror shock-absorbing glue matches the shape of the upper screen mirror. The upper screen mirror shock-absorbing glue is glued to the upper screen mirror bracket and is framed around the upper screen mirror.

[0018] As an improvement, the light source structure includes an upper screen light source arranged on the system bottom cover, a lower screen light source arranged on the system bottom cover, a first heat dissipation cavity arranged in close proximity to the upper screen light source and used for dissipating heat from the upper screen light source, a second heat dissipation cavity arranged in close proximity to the lower screen light source and used for dissipating heat from the lower screen light source, and a micro water pump, the upper screen light source is fixed on the lower end bottom plate of the system bottom cover and is located on the lower side of the upper screen mirror, the lower screen light source is arranged on the lower end bottom plate of the system bottom cover and the light source light of the lower screen light source can be projected from the lower end of the diffuser bracket to the lower screen short mirror;

[0019] As an improvement, the PCB assembly structure includes a PCB bottom cover, a dustproof pad, and a PCBA assembly. The PCBA assembly is provided with an IC module. The outer side surface of the PCB bottom cover is formed as a heat dissipation fin. A plurality of screw holes are formed around the PCB bottom cover. The PCBA assembly and the dustproof pad are respectively formed with a plurality of screw holes corresponding to the screw holes of the PCB bottom cover. The PCBA assembly and the dustproof pad are fixed to the PCB bottom cover by setting bolts in the screw holes of the PCBA assembly and the dustproof pad. The PCBA assembly is arranged between the dustproof pad and the PCB bottom cover. The PCB bottom cover is formed into a recessed portion corresponding to the position of the IC module of the PCBA assembly. An aluminum heat conductive sheet is provided at the position of the recessed portion of the PCB bottom cover that fits the IC module.

[0020] The optical path principle of the dual-screen display platform to achieve dual-screen display:

[0021] The upper screen light source projects the light source light onto the upper screen mirror on one side of the upper screen light source, and the light source light is guided through the upper screen mirror to the upper screen diffuser on the front side of the upper screen mirror, the light source light is magnified through the upper screen diffuser, and then projected to the upper screen wide mirror, and then the light source light is guided out through the upper screen wide mirror, and the light source light is projected through the light source window of the system dust cover to the curved mirror of the vehicle head-up display optical system, and is guided to the car windshield through the curved mirror, and finally at the human eye position through the reverse extension line of the light, the upper screen virtual image in front of the car windshield is seen, and the upper screen virtual image is AR augmented reality navigation information;

[0022] The lower screen light source projects the light from below the diffuser bracket to the lower screen short mirror, the light is projected to the lower screen diffuser through the lower screen short mirror, the light is amplified by the lower screen diffuser, the light is projected to the curved mirror of the vehicle-mounted head-up display optical system through the light source window of the system dust cover, and is guided to the car windshield through the curved mirror, and finally, at the human eye position, through the reverse extension line of the light, a virtual image of the lower screen in front of the car windshield is seen, and the virtual image of the lower screen is the car instrument information.

[0023] Furthermore, in the split-screen light-guiding structure: the upper screen mirror assembly further comprises an upper screen mirror fixture, the upper screen mirror fixture is formed into a frame body having the same shape as the upper screen mirror, the size of the frame body is smaller than the upper screen mirror, and the upper screen mirror fixture is attached to the outer side of the upper screen mirror and fixed on the upper screen mirror bracket;

[0024] Further, in the split-screen light-guiding structure: two groups of screw holes and two groups of positioning pins are symmetrically arranged on both sides of the fixing portion of the upper screen mirror bracket, and the upper screen mirror bracket is fixed to the bottom plate of the system bottom cover by arranging bolts on the two groups of screw holes, and the bottom plate of the system bottom cover is also formed with positioning holes matching the positioning pins, and the positioning pins are inserted into the positioning holes of the system bottom cover;

[0025] Furthermore, in the split-screen light-guiding structure: the embedding portion of the upper screen mirror bracket is also provided with a plurality of vertical reinforcing ribs;

[0026] Further, in the light source structure: the components of the upper screen light source and the lower screen light source are arranged in an L shape, the first heat dissipation cavity and the second heat dissipation cavity are flat cavities, the first heat dissipation cavity and the second heat dissipation cavity are in an L shape matching the upper screen light source and the lower screen light source components, the first heat dissipation cavity is connected to a first water inlet pipe and a first water outlet pipe, the second heat dissipation cavity is connected to a second water inlet pipe and a second water outlet pipe, the micro water pump includes a water inlet and a water outlet, the first water inlet pipe and the second water inlet pipe are respectively connected to the water outlet of the micro water pump, the first water outlet pipe and the second water outlet pipe are respectively connected to the water inlet of the micro water pump, by arranging water in the first heat dissipation cavity and the second heat dissipation cavity, and realizing the circulation of water in the first heat dissipation cavity and the second heat dissipation cavity through the micro water pump, thereby realizing the heat dissipation of the upper screen light source and the lower screen light source;

[0027] Furthermore, in the light source structure: the first heat dissipation cavity and the second heat dissipation cavity are made of aluminum material, the inside of the first heat dissipation cavity and the second heat dissipation cavity are formed into a spiral tube, and the water flows in the first heat dissipation cavity and the second heat dissipation cavity in a spiral flow path;

[0028] Further, the light source structure also includes a data cable, a power cable, a left sleeve of the data cable, a right sleeve of the data cable, a dust pad of the data cable, a left sleeve of the power cable, a right sleeve of the power cable, and a dust pad of the power cable, which are electrically connected to the upper screen light source and the lower screen light source respectively. The system bottom cover includes a square data cable through hole and a round power cable through hole. The left sleeve of the data cable and the right sleeve of the data cable are mutually clamped and embedded in the square data cable through hole. The data cable passes through the middle of the left sleeve of the data cable and the right sleeve of the data cable. The dust pad of the data cable is sleeved on the data cable and clamped on the inner side of the square data cable through hole. The left sleeve of the power cable and the right sleeve of the power cable are mutually clamped and embedded in the round power cable through hole. The power cable passes through the middle of the left sleeve of the power cable and the right sleeve of the power cable. The dust pad of the power cable is sleeved on the power cable and clamped on the inner side of the round power cable through hole.

[0029] Further, in the PCB assembly structure: the dustproof pad is also formed with a plurality of grooves, and the outer side surface of the system bottom cover is also provided with a plurality of protrusions corresponding to the grooves of the dustproof pad; a plurality of limiting holes are also formed at the middle position of the PCBA assembly, and a plurality of limiting posts are also provided on the outer side surface of the system bottom cover corresponding to the limiting holes, the PCBA assembly and the dustproof pad are fixed on the PCB bottom cover, and the outer side of the system bottom cover is connected to the dustproof pad, the PCBA assembly, and the PCB bottom cover in sequence, the plurality of protrusions on the outer side surface of the system bottom cover are respectively embedded in the plurality of grooves of the dustproof pad, and the plurality of limiting posts on the outer side surface of the system bottom cover respectively pass through the plurality of limiting holes of the PCBA assembly;

[0030] Furthermore, in the PCB assembly structure: the PCBA assembly is individually modularized.

[0031] The present invention provides a dual-screen display platform for a head-up display system, which has the following beneficial effects:

[0032] 1. It adopts a dual optical and mechanical structure, with optical and mechanical staggered, and implements a flat design to save space. It can also be used as a structural platform and can be widely used in various models;

[0033] 2. Use a split-screen structure, with the focus on replacing the instrument and having the function of augmented reality (AR). The lower screen displays instrument information, and the upper screen is used for augmented reality (AR) navigation, which diverts the displayed content to avoid clutter and enhance comfort.

[0034] 3. The plane mirror installation structure can ensure the verticality and bonding stability of the plane mirror, has good shock resistance, can prevent the lens from tilting and rotating, and will not cause optical path deflection and failure;

[0035] 4. The diffuser installation structure can ensure that the diffuser is flat, wrinkle-free, and naturally smooth, with uniform light beam diffusion angle, clear display, and uniform brightness;

[0036] 5. The PCB assembly structure conducts the heat of the IC to the metal bottom shell, which can avoid the IC from freezing or burning due to overheating;

[0037] 6. The heat dissipation structure adopts metal and liquid cooling, which can ensure good heat dissipation of the product and prevent dust from entering the machine. The lens is clear and the visual effect is good;

[0038] 7. Special surface coating treatment is applied to components, such as the bottom shell and bracket, to prevent diffuse reflection of the light beam inside the device and reduce the attenuation of light beam signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 , which is a component splitting of a dual-screen display platform for a head-up display system of the present invention Figure 1 ;

[0040] Figure 2 ,for Figure 1 An exploded view of the diffuser assembly of the illustrated embodiment;

[0041] Figure 3 ,for Figure 1 An exploded view of the upper screen mirror assembly of the illustrated embodiment;

[0042] Figure 4 ,for Figure 1 A disassembled view of the lower screen short mirror of the illustrated embodiment;

[0043] Figure 5 ,for Figure 1 A disassembled view of the upper screen wide mirror of the illustrated embodiment;

[0044] Figure 6 ,for Figure 1 A schematic diagram of the assembly installation of the split-screen light-guiding structure of the illustrated embodiment;

[0045] Figure 7 ,for Figure 1 An assembly diagram of the split-screen light-guiding structure of the illustrated embodiment;

[0046] Figure 8 ,for Figure 1 An exploded view of the light source structure of the illustrated embodiment;

[0047] Fig. 9 ,for Figure 1 A schematic diagram of the installation of the dustproof structure of the data cable and the power cable of the embodiment shown;

[0048] Fig.10 ,for Figure 1 A heat dissipation diagram of the light source structure of the illustrated embodiment;

[0049] Fig.11 ,for Figure 1 Disassembly of the PCB assembly structure of the illustrated embodiment Figure 1 ;

[0050] Fig.12 ,for Figure 1 Disassembly of the PCB assembly structure of the illustrated embodiment Figure 2 ;

[0051] Fig.13 ,for Figure 1 An assembly diagram of the PCB assembly structure of the illustrated embodiment;

[0052] Fig.14 ,for Figure 1 An exploded view of the system dust cover of the illustrated embodiment. DETAILED DESCRIPTION

[0053] The present invention will be further described below in conjunction with embodiments:

[0054] Example:

[0055] like Figure 1 to Figure 14 The present invention provides a dual-screen display platform for a head-up display system, wherein the dual-screen display platform is used for a vehicle-mounted head-up display optical system, wherein the vehicle-mounted head-up display optical system at least includes a curved mirror, a vehicle windshield, and a human eye position, wherein the curved mirror is disposed on the dual-screen display platform, and the curved mirror is disposed below the vehicle windshield;

[0056] As an improvement, the dual-screen display platform includes an upper screen display for AR augmented reality navigation and a lower screen display for displaying instrument information. The dual-screen display platform is composed of a PCB component structure 1, a system bottom cover 2, a light source structure 3, a split-screen light guide structure 4, and a system dust cover 5;

[0057] As an improvement, the split-screen light-guiding structure 4 includes an upper screen mirror assembly 41, a lower screen short mirror 42, a diffusion sheet assembly 43, and an upper screen wide mirror 44, which are arranged on the bottom cover of the system;

[0058] As an improvement, the system bottom cover 2 is of flat design, and includes a lower bottom plate 21, and an inclined plate 22 extending forward and upward from the lower bottom plate, the upper end of the inclined plate is an upper screen wide mirror installation position 221, and a recessed portion 222 is formed at the lower end of the inclined plate, and the recessed portion is a lower screen short mirror installation position, the diffusion sheet assembly 43 is fixed to the connection portion between the lower bottom plate and the inclined plate, and the lower end of the diffusion sheet assembly is overhead, the system dust cover 5 is buckled with the system bottom cover 2, and the system dust cover 5 is provided with a light source window 51 at a position above the upper screen wide mirror;

[0059] As an improvement, the upper screen mirror assembly 41 is fixed to one side of the lower end base plate 21, and the diffuser assembly 43 includes a diffuser bracket 431, an upper screen diffuser 432, a lower screen diffuser 433, an upper screen diffuser fixing plate 434, and a lower screen diffuser fixing plate 435. The diffuser bracket 431 includes a connecting plate 431a at the lower end, and a first fixing frame 431b vertically arranged on the connecting plate, and a second fixing frame 431c arranged on one side of the upper end of the first fixing frame. A card slot 431d is formed on the side of the upper end of the first fixing frame opposite to the second fixing frame. The first fixing frame is formed with an embedding groove matching the upper screen diffuser fixing plate, and the second fixing frame is formed with an embedding groove matching the lower screen diffuser fixing plate. The upper screen diffuser fixing plate and the lower screen diffuser fixing plate are frame-shaped bodies, and the upper screen diffuser is glued to the upper screen diffuser fixing plate. The middle position of the fixed sheet, and the four sides of the upper screen diffuser are evenly glued to the upper screen diffuser fixing sheet, and the upper screen diffuser fixing sheet is fixed in the embedding groove of the first fixing frame of the diffuser bracket. Similarly, the lower screen diffuser is glued to the lower screen diffuser fixing sheet, and the lower screen diffuser fixing sheet is fixed in the embedding groove of the second fixing frame of the diffuser bracket. The lower screen diffuser is set at a certain angle downward with the horizontal plane of the upper end of the first fixing frame as a reference. The lower end bottom plate 21 of the system bottom cover 2 is vertically provided with a columnar body 211, the upper end of the columnar body matches the card slot at the upper end of the first fixing frame, and the upper end of the columnar body is embedded in the card slot. A plurality of symmetrically arranged screw holes are formed on the connecting plate at the lower end of the diffuser bracket, and bolts are set in the plurality of screw holes of the connecting plate to fix the diffuser bracket to the system bottom cover, and the lower end of the diffuser bracket is overhead.

[0060] As an improvement, the upper screen mirror assembly 41 includes an upper screen mirror bracket 411, an upper screen mirror 412, an upper screen mirror shock-absorbing glue 413, and an upper screen mirror ultra-thin glue 414. The upper screen mirror bracket 411 includes a fixing portion 411a at the lower end and an embedding portion 411b vertically arranged on the fixing portion. The upper screen mirror assembly is fixed to the system bottom cover through the fixing portion. The upper screen mirror ultra-thin glue is glued to the upper end of the rear side of the upper screen mirror. The rear end face of the embedding portion of the upper screen mirror bracket 411 is formed as a recessed portion 411c. The recessed surface of the recessed portion is formed as a groove structure of the same depth. The upper screen mirror is glued to the groove structure of the upper screen mirror bracket by filling glue in the groove structure of the upper screen mirror bracket. The upper screen mirror shock-absorbing glue matches the shape of the upper screen mirror. The upper screen mirror shock-absorbing glue is glued to the upper screen mirror bracket and is framed around the upper screen mirror.

[0061] As an improvement, the light source structure 3 includes an upper screen light source 31 arranged on the system bottom cover, and a lower screen light source 32 arranged on the system bottom cover, and a first heat dissipation cavity 33 arranged in close contact with the upper screen light source and used for heat dissipation of the upper screen light source, and a second heat dissipation cavity 34 arranged in close contact with the lower screen light source and used for heat dissipation of the lower screen light source, and a micro water pump, the upper screen light source is fixed on the lower end bottom plate of the system bottom cover and is located on the lower side of the upper screen mirror, 212 is the installation position of the upper screen light source, the lower screen light source is arranged on the lower end bottom plate of the system bottom cover and the light source light of the lower screen light source can be projected from the lower end of the diffuser bracket to the lower screen short mirror, 213 is the installation position of the lower screen light source;

[0062] As an improvement, the PCB assembly structure 1 includes a PCB bottom cover 11, a dustproof pad 12, and a PCBA assembly 13. The PCBA assembly 13 is provided with an IC module 131. The outer side surface of the PCB bottom cover 11 is formed as a heat dissipation fin 111. A plurality of screw holes are formed around the PCB bottom cover. The PCBA assembly and the dustproof pad are respectively formed with a plurality of screw holes corresponding to the screw holes of the PCB bottom cover. The PCBA assembly and the dustproof pad are fixed to the PCB bottom cover by setting bolts in the screw holes of the PCBA assembly and the dustproof pad. The PCBA assembly is arranged between the dustproof pad and the PCB bottom cover. The PCB bottom cover 11 is formed into a recessed portion 112 corresponding to the position of the IC module of the PCBA assembly. An aluminum heat conductive sheet 113 is provided at the position of the recessed portion of the PCB bottom cover that fits the IC module.

[0063] Furthermore, in the split-screen light-guiding structure: the upper screen mirror assembly further comprises an upper screen mirror fixture, the upper screen mirror fixture is formed into a frame body having the same shape as the upper screen mirror, the size of the frame body is smaller than the upper screen mirror, and the upper screen mirror fixture is attached to the outer side of the upper screen mirror and fixed on the upper screen mirror bracket;

[0064] Further, in the split-screen light guide structure: two groups of screw holes and two groups of positioning pins are symmetrically arranged on both sides of the fixing portion of the upper screen mirror bracket 411, and the upper screen mirror bracket is fixed to the bottom plate of the system bottom cover by arranging bolts on the two groups of screw holes, and the bottom plate of the system bottom cover is also formed with positioning holes matching the positioning pins, and the positioning pins are inserted into the positioning holes of the system bottom cover;

[0065] Furthermore, in the split-screen light-guiding structure: the embedding portion of the upper screen mirror bracket 411 is also provided with a plurality of vertical reinforcing ribs 411f;

[0066] Further, in the light source structure: the components of the upper screen light source and the lower screen light source are arranged in an L shape, the first heat dissipation cavity and the second heat dissipation cavity are flat cavities, and the first heat dissipation cavity and the second heat dissipation cavity are in an L shape matching the upper screen light source and the lower screen light source components, the first heat dissipation cavity 33 is connected to a first water inlet pipe 331 and a first water outlet pipe 332, the second heat dissipation cavity 34 is connected to a second water inlet pipe 341 and a second water outlet pipe 342, the micro water pump includes a water inlet and a water outlet, the first water inlet pipe and the second water inlet pipe are respectively connected to the water outlet of the micro water pump, and the first water outlet pipe and the second water outlet pipe are respectively connected to the water inlet of the micro water pump, by arranging water in the first heat dissipation cavity and the second heat dissipation cavity, and realizing the circulation of water in the first heat dissipation cavity and the second heat dissipation cavity through the micro water pump, thereby realizing the heat dissipation of the upper screen light source and the lower screen light source;

[0067] Furthermore, in the light source structure: the first heat dissipation cavity and the second heat dissipation cavity are made of aluminum material, the inside of the first heat dissipation cavity and the second heat dissipation cavity are formed into a spiral tube, and the water flows in the first heat dissipation cavity and the second heat dissipation cavity in a spiral flow path;

[0068] Further, the light source structure 3 also includes a data cable, a power cable, and a left sleeve 351 of the data cable, a right sleeve 352 of the data cable, a dustproof pad 353 of the data cable, a left sleeve 361 of the power cable, a right sleeve 362 of the power cable, and a dustproof pad 363 of the power cable, which are electrically connected to the upper screen light source and the lower screen light source respectively. The system bottom cover 2 includes a square data cable through hole 23 and a round power cable through hole 24. The left sleeve of the data cable and the right sleeve of the data cable are mutually clamped and embedded in the square data cable through hole. The data cable passes through the middle of the left sleeve of the data cable and the right sleeve of the data cable. The dustproof pad of the data cable is sleeved on the data cable and is clamped on the inner side of the square data cable through hole. The left sleeve of the power cable and the right sleeve of the power cable are mutually clamped and embedded in the round power cable through hole. The power cable passes through the middle of the left sleeve of the power cable and the right sleeve of the power cable. The dustproof pad of the power cable is sleeved on the power cable and is clamped on the inner side of the round power cable through hole.

[0069] Further, in the PCB assembly structure 1: the dustproof pad 12 is also formed with a plurality of grooves 121, and the outer side surface of the system bottom cover is also provided with a plurality of protrusions corresponding to the grooves of the dustproof pad; the middle position of the PCBA assembly 13 is also formed with a plurality of limiting holes 132, and the outer side surface of the system bottom cover 2 is also provided with a plurality of limiting posts 26 corresponding to the limiting holes, the PCBA assembly and the dustproof pad are fixed on the PCB bottom cover, and the outer side of the system bottom cover is connected with the dustproof pad, the PCBA assembly, and the PCB bottom cover in sequence, the plurality of protrusions on the outer side surface of the system bottom cover are respectively embedded in the plurality of grooves of the dustproof pad, and the plurality of limiting posts on the outer side surface of the system bottom cover respectively pass through the plurality of limiting holes of the PCBA assembly;

[0070] Furthermore, in the PCB assembly structure: the PCBA assembly is individually modularized.

[0071] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A dual-screen display platform for a head-up display system, the dual-screen display platform is used for a vehicle-mounted head-up display optical system, the vehicle-mounted head-up display optical system at least includes a curved mirror, a car windshield, and a human eye position, the curved mirror is arranged on the dual-screen display platform, and the curved mirror is arranged below the car windshield, characterized in that: The dual-screen display platform includes an upper screen display for AR augmented reality navigation and a lower screen display for displaying instrument information. The dual-screen display platform is composed of a PCB component structure, a system bottom cover, a light source structure, a split-screen light guide structure, and a system dust cover; The split-screen light-guiding structure comprises an upper screen mirror assembly, a lower screen short mirror, a diffusion sheet assembly, and an upper screen wide mirror arranged on the system bottom cover; The system bottom cover is of flat design, and includes a lower bottom plate and an inclined plate extending forward and upward from the lower bottom plate, the upper end of the inclined plate is the installation position of the upper screen wide mirror, and the lower end of the inclined plate is formed with a recessed portion, and the recessed portion is the installation position of the lower screen short mirror. The diffusion sheet assembly is fixed to the connection position between the lower bottom plate and the inclined plate, and the lower end of the diffusion sheet assembly is suspended, the system dust cover is buckled with the system bottom cover, and the system dust cover is provided with a light source window at the upper position of the upper screen wide mirror; The upper screen mirror assembly is fixed to one side of the lower end base plate, the diffuser assembly includes a diffuser bracket, an upper screen diffuser, a lower screen diffuser, an upper screen diffuser fixing plate, and a lower screen diffuser fixing plate, the diffuser bracket includes a connecting plate at the lower end, and a first fixing frame vertically arranged on the connecting plate, and a second fixing frame arranged on one side of the upper end of the first fixing frame, a card slot is formed on the side of the upper end of the first fixing frame opposite to the second fixing frame, the first fixing frame is formed with an embedding groove matching the upper screen diffuser fixing plate, the second fixing frame is formed with an embedding groove matching the lower screen diffuser fixing plate, the upper screen diffuser fixing plate and the lower screen diffuser fixing plate are frame-shaped bodies, the upper screen diffuser is glued to the middle position of the upper screen diffuser fixing plate, and the upper screen diffuser is surrounded by The upper screen diffuser fixing sheet is evenly glued, and at the same time, the upper screen diffuser fixing sheet is fixed in the embedding groove of the first fixing frame of the diffuser bracket. Similarly, the lower screen diffuser is glued to the lower screen diffuser fixing sheet, and at the same time, the lower screen diffuser fixing sheet is fixed in the embedding groove of the second fixing frame of the diffuser bracket. The lower screen diffuser is set at a certain angle downward with the horizontal plane of the upper end of the first fixing frame as a reference. The bottom plate of the system bottom cover is vertically provided with a columnar body, and the upper end of the columnar body matches the card slot at the upper end of the first fixing frame. The upper end of the columnar body is embedded in the card slot. A plurality of symmetrically arranged screw holes are formed on the connecting plate at the lower end of the diffuser bracket. Bolts are set in the plurality of screw holes of the connecting plate to fix the diffuser bracket to the system bottom cover, and the lower end of the diffuser bracket is overhead. The upper screen mirror assembly includes an upper screen mirror bracket, an upper screen mirror, an upper screen mirror shock-absorbing glue, and an upper screen mirror ultra-thin glue. The upper screen mirror bracket includes a fixing portion at the lower end, and an embedding portion vertically arranged on the fixing portion. The upper screen mirror assembly is fixed to the system bottom cover through the fixing portion. The upper screen mirror ultra-thin glue is glued to the upper end of the rear side of the upper screen mirror. The rear end surface of the embedding portion of the upper screen mirror bracket is formed as a recessed portion. The recessed surface of the recessed portion is formed as a groove structure of the same depth. The upper screen mirror is glued to the groove structure of the upper screen mirror bracket by filling glue in the groove structure of the upper screen mirror bracket. The upper screen mirror shock-absorbing glue matches the shape of the upper screen mirror. The upper screen mirror shock-absorbing glue is glued to the upper screen mirror bracket and is framed around the upper screen mirror. The light source structure includes an upper screen light source arranged on the system bottom cover, a lower screen light source arranged on the system bottom cover, a first heat dissipation cavity arranged in close contact with the upper screen light source and used for dissipating heat from the upper screen light source, a second heat dissipation cavity arranged in close contact with the lower screen light source and used for dissipating heat from the lower screen light source, and a micro water pump. The upper screen light source is fixed on the lower end bottom plate of the system bottom cover and is located at the lower side of the upper screen mirror. The lower screen light source is arranged on the lower end bottom plate of the system bottom cover and the light source light of the lower screen light source can be projected from the lower end of the diffuser bracket to the lower screen short mirror. The PCB assembly structure includes a PCB bottom cover, a dustproof pad, and a PCBA assembly. The PCBA assembly is provided with an IC module. The outer side of the PCB bottom cover is formed as a heat dissipation fin. A plurality of screw holes are formed around the PCB bottom cover. The PCBA assembly and the dustproof pad are respectively formed with a plurality of screw holes corresponding to the screw holes of the PCB bottom cover. The PCBA assembly and the dustproof pad are fixed to the PCB bottom cover by bolts arranged in the screw holes of the PCBA assembly and the dustproof pad. The PCBA assembly is arranged between the dustproof pad and the PCB bottom cover. The PCB bottom cover is formed as a recessed portion corresponding to the position of the IC module of the PCBA assembly. An aluminum heat conductive sheet is arranged at the position where the recessed portion of the PCB bottom cover fits the IC module. In the split-screen light-guiding structure: the upper screen mirror assembly further includes an upper screen mirror fixture, the upper screen mirror fixture is formed into a frame-shaped body consistent with the shape of the upper screen mirror, the size of the frame-shaped body is smaller than the upper screen mirror, and the upper screen mirror fixture is attached to the outer side of the upper screen mirror and fixed on the upper screen mirror bracket; In the light source structure, the components of the upper screen light source and the lower screen light source are arranged in an L shape, the first heat dissipation cavity and the second heat dissipation cavity are flat cavities, and the first heat dissipation cavity and the second heat dissipation cavity are in an L shape matching the upper screen light source and the lower screen light source components, the first heat dissipation cavity is connected to a first water inlet pipe and a first water outlet pipe, the second heat dissipation cavity is connected to a second water inlet pipe and a second water outlet pipe, the micro water pump includes a water inlet and a water outlet, the first water inlet pipe and the second water inlet pipe are respectively connected to the water outlet of the micro water pump, and the first water outlet pipe and the second water outlet pipe are respectively connected to the water inlet of the micro water pump, by arranging water in the first heat dissipation cavity and the second heat dissipation cavity, and realizing the circulation of water in the first heat dissipation cavity and the second heat dissipation cavity through the micro water pump, thereby realizing the heat dissipation of the upper screen light source and the lower screen light source.

2. A dual-screen display platform for a head-up display system according to claim 1, characterized in that: In the split-screen light-guiding structure: two groups of screw holes and two groups of positioning pins are symmetrically arranged on both sides of the fixing portion of the upper screen mirror bracket, and the upper screen mirror bracket is fixed to the bottom plate of the system bottom cover by arranging bolts on the two groups of screw holes. Positioning holes matching the positioning pins are also formed on the bottom plate of the system bottom cover, and the positioning pins are inserted into the positioning holes of the system bottom cover.

3. The dual-screen display platform for a head-up display system according to claim 1, characterized in that: In the split-screen light-guiding structure: the embedding portion of the upper screen mirror bracket is also provided with a plurality of vertical reinforcing ribs.

4. The dual-screen display platform for a head-up display system according to claim 1, characterized in that: In the light source structure: the first heat dissipation cavity and the second heat dissipation cavity are made of aluminum material, the inside of the first heat dissipation cavity and the second heat dissipation cavity are formed into a spiral tube, and the water flows in the first heat dissipation cavity and the second heat dissipation cavity in a spiral path.

5. The dual-screen display platform for a head-up display system according to claim 1, characterized in that: The light source structure also includes a data cable, a power cable, a left sleeve of the data cable, a right sleeve of the data cable, a dust pad of the data cable, a left sleeve of the power cable, a right sleeve of the power cable, and a dust pad of the power cable, which are electrically connected to the upper screen light source and the lower screen light source respectively. The system bottom cover includes a square data cable through hole and a circular power cable through hole. The left sleeve of the data cable and the right sleeve of the data cable are interlocked and embedded in the square data cable through hole. The data cable passes through the middle of the left sleeve of the data cable and the right sleeve of the data cable. The data cable dust pad is sleeved on the data cable and is interlocked on the inner side of the square data cable through hole. The left sleeve of the power cable and the right sleeve of the power cable are interlocked and embedded in the circular power cable through hole. The power cable passes through the middle of the left sleeve of the power cable and the right sleeve of the power cable. The power cable dust pad is sleeved on the power cable and is interlocked on the inner side of the circular power cable through hole.

6. The dual-screen display platform for a head-up display system according to claim 1, characterized in that: In the PCB assembly structure: the dustproof pad is also formed with a plurality of grooves, and the outer side surface of the system bottom cover is also provided with a plurality of protrusions corresponding to the grooves of the dustproof pad; a plurality of limiting holes are also formed at the middle position of the PCBA assembly, and a plurality of limiting columns are also provided on the outer side surface of the system bottom cover corresponding to the limiting holes. The PCBA assembly and the dustproof pad are fixed on the PCB bottom cover, and the outer side of the system bottom cover is connected to the dustproof pad, the PCBA assembly, and the PCB bottom cover in sequence. The plurality of protrusions on the outer side surface of the system bottom cover are respectively embedded in the plurality of grooves of the dustproof pad, and the plurality of limiting columns on the outer side surface of the system bottom cover respectively pass through the plurality of limiting holes of the PCBA assembly.

7. The dual-screen display platform for a head-up display system according to claim 1, characterized in that: In the PCB assembly structure: the PCBA assembly is individually modularized.

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