HUD reflector mounting structure and vehicle-mounted HUD display device

Abstract

The utility model discloses an HUD reflector mounting structure and a vehicle-mounted HUD display device, and relates to the technical field of HUD display. The HUD reflector mounting structure comprises an upper shell, a lower shell and a reflector, the lower shell is provided with a mounting groove for mounting the reflector, the upper shell is buckled above the lower shell, the reflector comprises a reflector body and connecting arms arranged on two sides of the reflector body, the connecting arms are clamped with the mounting groove, and one side of the lower shell is provided with an opening corresponding to the reflector body. The assembling efficiency of the reflector can be improved.

Description

Technical Field

[0001] This application relates to the field of HUD display technology, and more specifically, to a HUD reflector mounting structure and an in-vehicle HUD display device. Background Technology

[0002] With the rapid development of the automotive industry and the increasing demands for driving safety and intelligence, head-up display (HUD) technology is being used more and more widely in vehicles. HUD systems can project important driving information, such as vehicle speed and navigation instructions, into the driver's field of vision, eliminating the need for the driver to look down significantly at the instrument panel, effectively reducing eye movement and improving driving safety.

[0003] Existing HUD secondary reflectors require an adapter bracket as an intermediate connector during installation. This involves first fixing the secondary reflector to the adapter bracket, and then indirectly securing the adapter bracket to the housing using screws. This multi-layered fixing structure makes the entire assembly process complex and cumbersome, impacting assembly efficiency. Utility Model Content

[0004] The purpose of this application is to provide a HUD reflector mounting structure and an in-vehicle HUD display device, which can improve the assembly efficiency of the reflector.

[0005] The embodiments of this application are implemented as follows:

[0006] In one aspect of this application, a HUD reflector mounting structure is provided, including an upper housing, a lower housing, and a reflector. The lower housing has a mounting groove for mounting the reflector. The upper housing is snapped onto the upper part of the lower housing. The reflector includes a reflector body and connecting arms disposed on both sides of the reflector body. The connecting arms are engaged with the mounting groove. One side of the lower housing has an opening corresponding to the reflector body.

[0007] Optionally, as an implementable method, the mounting groove is provided with multiple guide ribs, and the connecting arm is provided with guide grooves corresponding to the guide ribs.

[0008] Optionally, as an implementable method, a first adhesive bevel is provided in the mounting groove, and a second adhesive bevel is provided on the connecting arm corresponding to the first adhesive bevel, wherein the first adhesive bevel and the second adhesive bevel are bonded together.

[0009] Alternatively, as an implementable method, the connecting arm is provided with a buffer pad, which abuts against the upper housing.

[0010] Optionally, as an implementable approach, a light-sensitive PCB board is also included, which is located on the back of the reflector, and a clamping structure for fixing the light-sensitive PCB board is provided in the mounting groove.

[0011] Optionally, as an implementable method, the holding structure includes a plurality of elastic arms surrounding the photosensitive PCB board, which clamp and fix the photosensitive PCB board.

[0012] Alternatively, as an implementable method, the end of the elastic arm is provided with a limiting part, which abuts against the upper edge of the photosensitive PCB board.

[0013] Optionally, as an implementable method, the upper housing is provided with a fixing hole, and the lower housing is provided with a connecting hole corresponding to the fixing hole, and a fastener passes through the connecting hole and connects to the fixing hole.

[0014] Optionally, as an implementable method, the upper housing is provided with a buckle, and the lower housing is provided with a corresponding latching protrusion, and the upper housing and the lower housing are connected by the buckle and the latching protrusion.

[0015] In another aspect of this application, an in-vehicle HUD display device is provided, including a display module and a HUD reflector mounting structure as described in any of the above claims, wherein the reflector of the HUD reflector mounting structure is located on the light-emitting side of the display module.

[0016] The beneficial effects of the embodiments of this application include:

[0017] The HUD reflector mounting structure and vehicle-mounted HUD display device provided in this application include an upper housing, a lower housing, and a reflector. The lower housing has a mounting groove for mounting the reflector, and the upper housing is snapped onto the upper housing. The reflector includes a reflector body and connecting arms disposed on both sides of the reflector body. The connecting arms are engaged with the mounting groove, and one side of the lower housing has an opening corresponding to the reflector body. This design abandons the traditional multi-level fixing mode of adapter brackets, adopting a structure where the reflector is directly snapped onto the lower housing and the upper housing is fastened, greatly reducing assembly steps. The originally complex process of first fixing the reflector to the adapter bracket and then fixing the adapter bracket to the housing is simplified to a one-step snap-on and fastening operation, significantly shortening assembly time. On large-scale automotive production lines, this can effectively improve production cycle time and reduce production costs. Reducing intermediate connecting parts also reduces the tolerances accumulated from multi-level assembly. The reflector is directly snapped into the lower housing, with a tight fit that allows for precise positioning. This ensures that the angle and height of the reflector are accurate after installation, guaranteeing that the driving information projected by the HUD system is always presented accurately in the driver's field of vision. This avoids problems such as blurry or misaligned displays caused by installation deviations, thereby improving driving safety and comfort. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is one of the structural schematic diagrams of the HUD reflector mounting structure provided in the embodiments of this application;

[0020] Figure 2 This is one of the structural schematic diagrams of the lower housing in the HUD reflector mounting structure provided in the embodiments of this application;

[0021] Figure 3 This is the second schematic diagram of the lower housing in the HUD reflector mounting structure provided in the embodiments of this application;

[0022] Figure 4 This is a schematic diagram of the reflector structure in the HUD reflector mounting structure provided in the embodiments of this application;

[0023] Figure 5 This is the second schematic diagram of the HUD reflector mounting structure according to an embodiment of this application.

[0024] Icons: 100-HUD reflector mounting structure; 110-Upper housing; 111-Snap-on; 120-Lower housing; 121-Mounting groove; 1211-Guide rib; 1212-First bonding bevel; 122-Snap protrusion; 123-Elastic arm; 1231-Limiting part; 130-Reflector; 131-Reflector body; 132-Connecting arm; 1321-Guide groove; 1322-Second bonding bevel; 133-Buffer pad; 140-Light-sensing PCB board. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] Please refer to Figure 1This embodiment provides a HUD reflector mounting structure 100, including an upper housing 110, a lower housing 120, and a reflector 130. The lower housing 120 has a mounting groove 121 for mounting the reflector 130. The upper housing 110 is fastened above the lower housing 120. The reflector 130 includes a reflector body 131 and connecting arms 132 disposed on both sides of the reflector body 131. The connecting arms 132 are engaged with the mounting groove 121. One side of the lower housing 120 has an opening corresponding to the reflector body 131.

[0030] Specifically, the HUD reflector mounting structure 100 includes an upper housing 110, a lower housing 120, and a reflector 130. The lower housing 120 is designed with a mounting groove 121 for mounting the reflector 130. This mounting groove 121 is precisely shaped according to the shape and size of the reflector 130, ensuring that the reflector 130 can be stably positioned. The upper housing 110 is tightly mounted on top of the lower housing 120 using a snap-fit ​​method. The two are connected by a reasonable snap-fit ​​structure 111 or sealing strip, ensuring a stable connection and preventing dust, moisture, and other impurities from entering and affecting the performance of the optical components. The reflector 130 consists of a reflector body 131 and connecting arms 132 located on both sides of the reflector body 131. The connecting arms 132 are connected to the mounting groove 121 of the lower housing 120 using a snap-fit ​​method, enabling quick installation while providing reliable lateral and longitudinal positioning, ensuring that the reflector 130 will not easily shift after installation. An opening corresponding to the reflector body 131 is specially provided on one side of the lower housing 120. The position and size of this opening are precisely calculated to meet the requirements of normal light reflection and projection path without weakening the overall structural strength of the lower housing 120. When the HUD system is working, light originates from the light source, is refracted and reflected by a series of optical elements, and is finally reflected by the reflector 130 and projected into the driver's field of vision through the opening, providing the driver with a clear and accurate display of driving information.

[0031] The HUD reflector mounting structure 100 provided in this application includes an upper housing 110, a lower housing 120, and a reflector 130. The lower housing 120 has a mounting groove 121 for mounting the reflector 130. The upper housing 110 is fastened above the lower housing 120. The reflector 130 includes a reflector body 131 and connecting arms 132 disposed on both sides of the reflector body 131. The connecting arms 132 are snapped into the mounting groove 121. One side of the lower housing 120 has an opening corresponding to the reflector body 131. This design abandons the traditional multi-level fixing mode of the adapter bracket, adopting a structure where the reflector 130 is directly snapped into the lower housing 120 and the upper housing 110 is fastened, greatly reducing assembly steps. The originally complex process of first fixing the reflector 130 to the adapter bracket and then fixing the adapter bracket to the housing is simplified to a one-step snap-fit ​​and fasten operation, significantly shortening assembly time. On large-scale automotive production lines, this can effectively improve production cycle time and reduce production costs. Reducing intermediate connecting parts also reduces the tolerances accumulated from multi-level assembly. The reflector 130 is directly snapped into the lower housing 120, with a tight fit that allows for precise positioning. This ensures that the angle and height of the reflector 130 are accurate after installation, guaranteeing that the driving information projected by the HUD system is always presented accurately in the driver's field of vision. This avoids problems such as blurry or misaligned displays caused by installation deviations, thereby improving driving safety and comfort.

[0032] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 4 As shown, multiple guide ribs 1211 are provided in the mounting groove 121, and guide grooves 1321 corresponding to the guide ribs 1211 are provided on the connecting arm 132. Through the cooperation of the guide ribs 1211 and guide grooves 1321, on the one hand, the assembly convenience and accuracy of the reflector 130 are greatly improved. Even in the fast-paced assembly of an automotive production line, workers can easily install the reflector 130 in one go, avoiding the tedious process of repeated adjustments due to installation deviations, further improving assembly efficiency. On the other hand, the cooperation of the guide ribs 1211 and guide grooves 1321 can effectively limit the lateral and longitudinal sway of the reflector 130 during installation, ensuring that the reflector 130 is in a more stable and precise working position after snap-fitting, guaranteeing the stability and accuracy of the HUD system's projected information, and improving driving safety.

[0033] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 4 As shown, a first adhesive inclined surface 1212 is provided in the mounting groove 121, and a second adhesive inclined surface 1322 corresponding to the first adhesive inclined surface 1212 is provided on the connecting arm 132. The first adhesive inclined surface 1212 and the second adhesive inclined surface 1322 are bonded together.

[0034] A first adhesive bevel 1212 is provided within the mounting groove 121. This bevel is finely polished and has a certain angle and smoothness to ensure good adhesion performance. Correspondingly, a second adhesive bevel 1322 is provided on the connecting arm 132, whose angle and area are perfectly matched with the first adhesive bevel 1212. During the installation of the reflector 130, when the connecting arm 132 is inserted into the mounting groove 121 to a specific depth, the first adhesive bevel 1212 and the second adhesive bevel 1322 are tightly fitted together. By applying an appropriate amount of high-strength, temperature-resistant adhesive, the two are firmly bonded together. This design of the adhesive bevel cleverly utilizes the contact characteristics of the bevel, increasing the bonding area and improving the bonding strength. Under complex operating conditions such as long-term vehicle vibration and temperature changes, it can effectively prevent the reflector 130 from loosening or shifting, ensuring the stable operation of the HUD system. Meanwhile, compared to simply relying on mechanical clamping, the design of the adhesive bevel disperses the stress points, reduces local stress concentration, and helps extend the service life of the reflector 130 and the mounting structure, providing drivers with a continuous and reliable display of driving information.

[0035] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 4 As shown, a buffer pad 133 is provided on the connecting arm 132, and the buffer pad 133 abuts against the upper housing 110.

[0036] A buffer pad 133 is provided on the connecting arm 132. The buffer pad 133 is typically made of rubber or silicone material with good elasticity, wear resistance, and temperature resistance. Its shape is customized according to the contact area between the connecting arm 132 and the upper housing 110, and it is block-shaped or strip-shaped, tightly fitting the surface of the connecting arm 132. After the upper housing 110 is installed, the buffer pad 133 is in a compressed state, resisting the upper housing 110 with a certain elastic force, filling any small gaps that may exist between the connecting arm 132 and the upper housing 110. During vehicle operation, vibrations are inevitable, and the buffer pad 133 plays a crucial role in buffering and shock absorption. It effectively absorbs the energy transmitted to the mounting structure of the reflector 130 from various vibration sources such as road bumps and engine vibrations, preventing vibrations from being directly transmitted to the reflector 130. This prevents the reflector 130 from being damaged, loosened, or having its optical performance degraded due to frequent vibrations, ensuring the clarity and stability of the HUD system's projected image, and improving driving comfort and safety. Meanwhile, the buffer pad 133 can also reduce noise caused by hard collisions between components and optimize the acoustic environment inside the vehicle.

[0037] In one possible embodiment of this application, such as Figure 1 , Figure 3 and Figure 4As shown, it also includes a light-sensing PCB board 140, which is located on the back of the reflector 130. A clamping structure for fixing the light-sensing PCB board 140 is provided in the mounting groove 121.

[0038] Furthermore, the holding structure includes multiple elastic arms 123 surrounding the light-sensitive PCB board 140, which clamp and fix the light-sensitive PCB board 140.

[0039] Specifically, the holding structure includes multiple elastic arms 123 surrounding the photosensitive PCB board. These elastic arms 123 are generally made of a plastic material with a certain elastic modulus, such as engineering plastics. These elastic arms 123 are cantilevered, with their roots firmly connected to the inner wall of the mounting groove 121, and their ends bent towards the photosensitive PCB board, forming a structure that can encircle the photosensitive PCB board. When installing the photosensitive PCB board, it is simply placed within the space enclosed by the elastic arms 123. The elastic arms 123 will deform moderately due to their own elasticity, then tightly clamp and fix the photosensitive PCB board 140, ensuring its stable position.

[0040] In one possible embodiment of this application, such as Figure 1 , Figure 3 and Figure 4 As shown, the end of the elastic arm 123 is provided with a limiting part 1231, which abuts against the upper edge of the light-sensitive PCB board 140.

[0041] The end of the elastic arm 123 is provided with a limiting part 1231. The limiting part 1231 is usually a protrusion, folded edge, or block structure formed at the end of the elastic arm 123 through processes such as stamping or injection molding. Its shape and size are precisely matched with the upper edge of the photosensitive PCB board 140. When the photosensitive PCB board 140 is clamped and fixed by the elastic arm 123, the limiting part 1231 just abuts against the upper edge of the photosensitive PCB board 140, restricting the displacement of the photosensitive PCB board 140 in the vertical direction and preventing it from jumping upward or falling out of the clamping position when the vehicle vibrates or is subjected to external impact.

[0042] In one possible embodiment of this application, such as Figure 1As shown, the upper housing 110 has a fixing hole, and the lower housing 120 has a corresponding connecting hole. Fasteners pass through the connecting holes and connect to the fixing holes. This fastener connection method provides reliable fastening force for the upper and lower housings 120, ensuring the integrity of the entire HUD reflector 130 mounting structure during vehicle operation and effectively resisting the risk of housing separation caused by external forces such as vibration and collision. Compared to simple clip-on connections, fastener connections are more robust and durable, especially suitable for high-performance vehicles with high structural strength requirements or vehicles frequently driven in harsh road conditions. This ensures the safe and stable operation of the optical components and electronic parts inside the HUD system, continuously providing the driver with accurate driving information.

[0043] In one possible embodiment of this application, such as Figure 1 and Figure 5 As shown, the upper housing 110 is provided with a buckle 111, and the lower housing 120 is provided with a buckle protrusion 122 corresponding to the buckle 111. The upper housing 110 and the lower housing 120 are connected by the buckle 111 and the buckle protrusion 122.

[0044] Specifically, the upper housing 110 is provided with a buckle 111, which is generally made of a plastic material with a certain degree of elasticity. The buckle 111 is often hook-shaped, sheet-shaped, or a protruding block, and its design position is adapted to match the latching protrusion 122 on the lower housing 120. The latching protrusion 122 on the lower housing 120 is also carefully designed, with a certain protrusion height, width, and shape to cooperate with the buckle 111 for a secure engagement. During assembly, when the upper housing 110 is snapped onto the lower housing 120, the buckle 111 will elastically deform due to compression. After the buckle 111 passes the latching protrusion 122, it quickly returns to its original shape and tightly engages with the latching protrusion 122, achieving rapid fixation of the upper and lower housings 120.

[0045] The snap-fit ​​connection method of clip 111 and protrusion 122 has the advantages of simple and quick operation, which can significantly improve assembly efficiency and reduce assembly time during large-scale assembly on automotive production lines. At the same time, the clip 111 connection, while ensuring a certain connection strength, avoids the increased cost and cumbersome assembly problems caused by excessive use of fasteners, achieving an optimal balance between cost and efficiency. Furthermore, the clip 111 connection also has a certain degree of detachability, facilitating later maintenance and repair of the HUD reflector mounting structure 100, reducing maintenance costs, and ensuring the long-term stable operation of the automotive HUD system.

[0046] This application also discloses an in-vehicle HUD display device, including a display module and the HUD reflector mounting structure 100 as described in the foregoing embodiments. The reflector 130 of the HUD reflector mounting structure 100 is located on the light-emitting side of the display module. This in-vehicle HUD display device has the same structure and beneficial effects as the HUD reflector mounting structure 100 in the foregoing embodiments. The structure and beneficial effects of the HUD reflector mounting structure 100 have been described in detail in the foregoing embodiments and will not be repeated here.

[0047] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A HUD reflector mounting structure, characterized in that, The device includes an upper housing, a lower housing, and a reflector. The lower housing has a mounting groove for mounting the reflector. The upper housing is fastened above the lower housing. The reflector includes a reflector body and connecting arms disposed on both sides of the reflector body. The connecting arms are engaged with the mounting groove. One side of the lower housing has an opening corresponding to the reflector body.

2. The HUD reflector mounting structure according to claim 1, characterized in that, The mounting groove is provided with multiple guide ribs, and the connecting arm is provided with guide grooves corresponding to the guide ribs.

3. The HUD reflector mounting structure according to claim 1, characterized in that, The mounting groove is provided with a first adhesive inclined surface, and the connecting arm is provided with a second adhesive inclined surface corresponding to the first adhesive inclined surface. The first adhesive inclined surface and the second adhesive inclined surface are bonded together.

4. The HUD reflector mounting structure according to claim 1, characterized in that, The connecting arm is provided with a buffer pad, which abuts against the upper housing.

5. The HUD reflector mounting structure according to claim 1, characterized in that, It also includes a light-sensing PCB board, which is located on the back of the reflector, and a clamping structure for fixing the light-sensing PCB board is provided in the mounting groove.

6. The HUD reflector mounting structure according to claim 5, characterized in that, The clamping structure includes multiple elastic arms surrounding the photosensitive PCB board, which clamp and fix the photosensitive PCB board.

7. The HUD reflector mounting structure according to claim 6, characterized in that, The end of the elastic arm is provided with a limiting part, which abuts against the upper edge of the photosensitive PCB board.

8. The HUD reflector mounting structure according to claim 1, characterized in that, The upper housing is provided with a fixing hole, and the lower housing is provided with a connecting hole corresponding to the fixing hole. Fasteners are passed through the connecting hole and connected to the fixing hole.

9. The HUD reflector mounting structure according to claim 1, characterized in that, The upper housing is provided with a buckle, and the lower housing is provided with a corresponding protrusion. The upper housing and the lower housing are connected by the buckle and the protrusion.

10. A vehicle-mounted HUD display device, characterized in that, The device includes a display module and a HUD reflector mounting structure as described in any one of claims 1-9, wherein the reflector of the HUD reflector mounting structure is located on the light-emitting side of the display module.

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