Housing for head-up display device and head-up display device

Abstract

The utility model provides a shell for head-up display equipment and the head-up display equipment, the shell is integrally formed and comprises a top part and a circumferential part arranged around the top part, and the top part and the circumferential part jointly define an accommodating space; wherein the circumferential portion includes a plurality of recessed portions and a plurality of protruding portions formed on a circumferential outer side thereof, the plurality of recessed portions and the plurality of protruding portions are alternately arranged in a circumferential direction of the circumferential portion, and the recessed portions at least partially separate the protruding portions from the other protruding portions.

Description

Technical Field

[0001] The utility model relates to the technical field of head-up display, in particular to a housing for a head-up display device and the head-up display device. Background Art

[0002] Head-up displays (HUDs) are an advanced display technology widely used in the automotive field. They project information such as vehicle speed, navigation information, and warning signs directly into the driver's field of view, allowing them to access critical information without looking down. This technology effectively improves driving safety and convenience and has become a key component of modern automotive intelligent features. HUDs typically consist of an optical module, display module, electronic control unit, and housing. The housing, as a protective structure for the device, is crucial for the installation and operational stability of internal components.

[0003] The top cover is a key component in the HUD housing. Typically installed on top of the device, it protects the internal optical and electronic components, preventing dust, vibration, and other external factors from interfering with the device's operation. Furthermore, the top cover shapes the device's exterior, requiring its surface to conform to the aesthetic requirements of the vehicle's interior design. To meet these functional requirements, the top cover is typically made of plastic and features reinforcing ribs on the side facing the HUD interior to enhance structural strength.

[0004] However, due to the influence of many factors such as the design of the reinforcement ribs, the selection of the cover material and the manufacturing process, the top cover of the existing head-up display device performs poorly in terms of appearance quality and structural stability, and cannot meet the requirements of high-quality head-up display devices. Utility Model Content

[0005] To solve the above technical problems, the present invention provides a housing for a head-up display device and a head-up display device. The housing adopts a concave-convex folding structure instead of a conventional reinforcing rib structure to strengthen the housing and avoid the poor appearance caused by the reinforcing ribs.

[0006] The technical solution of the embodiment of the utility model is achieved as follows:

[0007] In a first aspect, an embodiment of the present invention provides a housing for a head-up display device, wherein the housing is integrally formed and includes a top portion and a circumferential portion disposed around the top portion, wherein the top portion and the circumferential portion jointly define a receiving space;

[0008] The circumferential portion includes a plurality of recessed portions and a plurality of protruding portions formed on the circumferential outer side thereof, the plurality of recessed portions and the plurality of protruding portions are arranged alternately in a circumferential direction of the circumferential portion, and the recessed portion separates the protruding portion at least partially from other protruding portions.

[0009] In some optional examples, the circumferential outer side of the circumferential portion is in a curved surface shape protruding towards a direction away from the center of the housing.

[0010] In some optional examples, the outer periphery contour of each of the recessed portion and the protruding portion is in a polygonal shape.

[0011] In some optional examples, the recessed portion and the protruding portion are connected via a transition portion, wherein the transition portion has an arc surface.

[0012] In some optional examples, each of the plurality of protruding portions extends from a first edge of the circumferential portion to a second edge of the circumferential portion, wherein the first edge is adjacent to the top portion and opposite to the second edge.

[0013] In some optional examples, the housing further includes a guide groove extending from the first edge of the circumferential portion to the second edge of the circumferential portion, so as to guide the first edge and the second edge of the housing via the guide groove.

[0014] In some optional examples, the housing further includes a connecting portion formed on the circumferential outer side of the circumferential portion, the connecting portion being used to realize connection of the housing with other components of the head-up display device.

[0015] In some optional examples, the housing further includes a positioning portion, the positioning portion being used to fix a position of the housing relative to the other components in a process of connecting the housing with the other components of the head-up display device.

[0016] In some optional examples, the top portion has a through opening.

[0017] In a second aspect, the utility model embodiment provides a head-up display device, the head-up display device includes the housing for head-up display device according to the first aspect.

[0018] An embodiment of the present utility model provides a shell for a head-up display device and a head-up display device. The shell defines a housing space by a top and a circumferential portion extending around one side of the top. The outer side of the circumferential portion is formed with alternating recessed portions and protruding portions. This alternating concave and convex structure can enhance the rigidity and deformation resistance of the shell while solving the problems of poor appearance quality and easy deformation in the traditional reinforcement rib design. In addition, the design optimizes the production process, reduces mold loss, reduces production costs, and further improves manufacturing efficiency through uniform wall thickness and one-piece molding process. When the shell is applied to a head-up display device, it can provide stable structural support and effective shell protection for the head-up display device, thereby ensuring the reliability of the device in a dynamic environment and the stability of long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional schematic diagram of the upper cover of a conventional head-up display device.

[0020] Figure 2 A three-dimensional schematic diagram of a housing for a head-up display device provided in an embodiment of the present invention.

[0021] Figure 3 for Figure 2 Bottom view of the shell.

[0022] Figure 4 for Figure 3 Cross-sectional view of the shell viewed along direction AA.

[0023] Figure 5 A three-dimensional schematic diagram of a head-up display device provided in an embodiment of the present utility model. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0025] As mentioned above, the top cover of conventional head-up display devices can be made of composite materials. These materials have good plasticity and forming properties and can meet basic structural strength requirements.

[0026] In order to improve the overall rigidity of the upper cover, reinforcing ribs are usually designed on the inner wall of the upper cover. Figure 1Fig. 1 is a schematic view of the inside of a conventional head-up display device upper cover 100. The outer surface of the circumferential wall 101 of the upper cover 100 is substantially a smooth curved surface, but a plurality of reinforcing ribs 102 are distributed on the inner surface of the circumferential wall 101. These reinforcing ribs 102 are generally arranged at the main stress positions to achieve local reinforcement and maintain the appearance of the upper cover 100 as a smooth curved surface. However, this arrangement, although it can improve the rigidity of the part to some extent, also brings many problems in terms of appearance quality, structural stability and manufacturing process.

[0027] Specifically, the application of the reinforcing ribs 102 causes uneven distribution of the overall wall thickness of the upper cover 100. Specifically, at the junction of the rib positions and the smooth curved surface, the local thickness increases, and the flow directions of the warp and weft and the smooth curved surface are inconsistent. This uneven wall thickness and multiple flow directions cause asynchronous shrinkage during the cooling and shrinkage process, resulting in obvious shrink marks at the junction of the rib positions and the circumferential wall, which seriously affects the appearance quality of the upper cover. In addition, the local shrinkage of the upper cover also reduces the bonding area of the upper cover with other components, resulting in a decrease in the bonding strength of the upper cover with other components. In large size areas, although the reinforcing ribs can play a strengthening role, their shrinkage effect can generate vertical tension on the surface of the upper cover, causing deformation of the overall surface shape, and even defects such as collapse of the outer shape and accumulation of fusion marks.

[0028] In addition, during the molding process of the part, due to the distribution of the internal parts, the wall thickness of some rib positions may be too thin, causing thin iron phenomenon at the top of the mold. During production, affected by the impact of high-temperature and high-pressure plastic fluid, the thin iron area is prone to thermal fatigue deformation. This not only increases the number of mold repair and reduces the service life of the mold, but also significantly increases the production cost. More seriously, the lack of material at the top of the rib position can cause slag dropping, and the foreign matter produced can enter the inside of the head-up display device. These foreign matters can directly affect the imaging quality of the head-up display device and produce abnormal noise due to shaking during device operation, further reducing the user's experience. In addition, when the part is subjected to external impact, the support and tension provided by the reinforcing ribs are mainly in the vertical direction, and the strengthening range is limited, resulting in poor optimization of the overall deformation resistance and strength of the part.

[0029] The existence of these problems in the prior art limits the comprehensive performance of the head-up display device upper cover in terms of appearance quality, structural stability and production process. Therefore, it is urgent to optimize the design and improve the process to solve the deficiencies in the prior art and improve the overall performance and manufacturing reliability of the head-up display device upper cover.

[0030] In response to the above problems, the inventors proposed a shell and a head-up display device for a head-up display device. Inspired by the "Miura folding" structure, the inventors adopted a concave-convex folding structure for the shell to replace the conventional reinforcing rib structure, thereby strengthening the shell and avoiding the poor appearance caused by the reinforcing ribs.

[0031] See also Figure 2 Some embodiments of the present invention provide a housing 1 for a head-up display device. The housing 1 is integrally formed and may include a top portion 11 and a circumferential portion 12 disposed around the top portion 11. The top portion 11 and the circumferential portion 12 may jointly define a receiving space RC.

[0032] The circumferential portion 12 may include a plurality of recesses 121 and a plurality of projections 122 formed on its circumferential outer side. The recesses 121 and projections 122 may be alternately arranged in the circumferential direction of the circumferential portion 12, and the recesses 121 at least partially separate the projections 122 from the other projections 122.

[0033] like Figure 2 As shown, the circumferential portion 12 of the housing 1 is positioned at the edge of one side of the top 11 and extends along the circumference of the top 11. Together with the top 11, it encloses a certain accommodation space RC, giving the housing a lid-like structure. In practical applications, the housing 1 can serve as the upper cover of the head-up display device, protecting the internal core components and providing the necessary support and installation foundation.

[0034] The circumferential portion 12 has an inner side and an outer side. The inner side refers to the side of the circumferential portion 12 facing the accommodating space RC, while the outer side refers to the side of the circumferential portion 12 facing away from the accommodating space RC. The housing 1 is integrally formed using an injection molding process. Therefore, the recessed portion 121 and protruding portion 122 on the circumferential portion 12 do not require separate manufacturing or subsequent assembly; instead, they are integrally formed with the housing. This one-piece design not only simplifies the manufacturing process but also enhances the overall strength and stability of the housing. It also ensures material continuity across all components, avoiding potential weaknesses associated with spliced ​​structures.

[0035] The concave portion 121 and the convex portion 122 of the circumferential portion 12 may be arranged adjacent to each other in the circumferential direction of the circumferential portion 12. Figure 2 The concave portion 121 and the convex portion 122 interrupt each other's continuous extension in the circumferential direction of the circumferential portion 12 , which causes the outer surface of the circumferential portion 12 to be transformed from a smooth curved surface to an uneven geometric shape.

[0036] By optimizing the geometry of the circumferential portion 12, this concave-convex structure can completely replace the function of traditional reinforcing ribs. This geometric optimization provides the shell 1 with multi-directional support capabilities under dynamic loads or vibration conditions, enhancing not only the rigidity of the circumferential portion 12 but also the overall bending and torsional rigidity of the shell 1. Compared to conventional smooth surface designs, the concave-convex structure significantly improves stress dispersion and avoids stress concentration issues by increasing the variation in surface curvature. This geometric design ensures that the shell 1 exhibits greater durability under load conditions, enabling it to better adapt to various complex load conditions in dynamic environments.

[0037] Furthermore, the concave-convex structure effectively absorbs and disperses external impact forces, significantly improving the housing's impact resistance and overall durability. This provides excellent mechanical properties, particularly in scenarios where the housing is subject to frequent vibration or shock. This concave-convex structure not only meets the housing's strength requirements but also ensures its reliability and stability in complex operating environments. For example, it ensures that the housing maintains high dimensional stability in dynamic environments such as vehicle vibration or external shock. This stability not only extends the housing's service life but also effectively protects the head-up display's internal components, preventing deformation of the housing that could affect device performance and reliability.

[0038] The shell 1 can have a substantially uniform wall thickness. In this case, the wall thickness at the recessed portion 121 and the protruding portion 122 can be comparable. For example, the wall thickness of the recessed portion 121 can be about 2.5 mm, and the thickness of the protruding portion 122 can be in the range of 2.5 mm to 3 mm. In the case where the shell 1 is made of a plastic material through an injection molding process, the uniform wall thickness design of the shell 1 can optimize the material flow path in the injection molding process and avoid the risk of insufficient filling or material shortage in thin-walled areas. In addition, the uniform wall thickness design reduces the stress difference caused by uneven thickness during the cooling process, significantly reduces the shrinkage or deformation problems after molding, and further improves the surface quality of the parts. Uniform wall thickness can also extend the service life of the mold, reduce the frequency of mold repair, and thus reduce production costs.

[0039] In summary, some embodiments of the present invention provide a shell 1 for a head-up display device. The shell 1 defines a accommodating space through a top 11 and a circumferential portion 12 extending around one side of the top 11. The outer side of the circumferential portion 12 is formed with alternating recessed portions 121 and protruding portions 122. This alternating concave and convex structure can enhance the rigidity and deformation resistance of the shell 1 while solving the problems of poor appearance quality and easy deformation in the traditional reinforcement rib design. In addition, the design optimizes the production process through uniform wall thickness and one-piece molding process, reduces mold loss, reduces production costs, and further improves manufacturing efficiency. When the shell 1 is applied to a head-up display device, it can provide stable structural support and effective shell protection for the head-up display device, thereby ensuring the reliability of the device in a dynamic environment and the stability of long-term use.

[0040] In some embodiments of the present invention, see Figure 2 and Figure 3 The circumferential outer side of the circumferential portion 12 has a curved surface shape that protrudes in a direction away from the center of the housing 1 .

[0041] The overall shape of the housing 1 may not be a regular rectangle. The circumferential portion 12 may be arranged on one side of the top 11 in a non-vertical manner. Figure 3 As shown, the outer periphery of the top 11 may be an irregular quadrilateral, thus having four sides. The circumferential portion 12 may also be divided into four sections according to the four sides of the top 11, and the four sections are respectively arranged on the four sides of the top 11. Figure 3 As shown, each section of the circumferential portion 12 may be curved and protrude in a direction away from the center of the housing 1. In addition, the sections of the circumferential portion 12 may also be in a shape formed by splicing two curved surfaces. Figure 2 As can be seen from the drawings, two adjacent segments of the circumferential portion 12, namely the first segment 12A and the second segment 12B, are shown. Figure 2 As indicated by the dotted box in the figure, each segment extends from the top 11 in the downward direction in the figure. The two segments can gradually move away from the center of the shell 1 during the downward extension process, and then gradually extend toward the center of the shell 1 when the extension path reaches halfway. In this way, the two segments are respectively shaped by splicing two curved surfaces, and are farthest from the center of the shell 1 at the splicing position. Taking the first segment 12A as an example, it can include a first part 12C and a second part 12D, as shown in FIG. Figure 2 The first portion 12C extends to the second portion 12D in a direction gradually away from the center of the housing 1, and the second portion 12D extends in a direction gradually approaching the center of the housing 1. The position where the first portion 12C and the second portion 12D meet can be at the first section 12A. Figure 2At approximately half of the vertical direction.

[0042] The curved shape can effectively improve the structural rigidity of the circumferential portion 12 by increasing the curvature variation of the outer surface of the circumferential portion 12. Compared with a straight design, the curved shape can disperse stress more evenly and avoid stress concentration, thereby further enhancing the bending resistance and torsional rigidity of the shell 1 under stress conditions and reducing the risk of local deformation or failure. In addition, the curved shape gives the circumferential portion multi-directional support capabilities, which can more effectively absorb and disperse external forces in dynamic environments such as vehicle vibrations or external impacts, significantly improving the impact resistance of the shell. This design is particularly suitable for application scenarios where head-up display devices need to withstand complex loads, ensuring the structural stability and functional reliability of the equipment under complex working conditions.

[0043] In terms of production technology, the combination of curved shapes and one-piece molding simplifies the manufacturing process, avoiding the complex manufacturing requirements caused by additional reinforcement ribs in traditional designs. Furthermore, the uniform wall thickness of the curved surface design further optimizes the material flow path, reducing mold loss and manufacturing defects, improving molding efficiency, and reducing production costs.

[0044] In some embodiments of the present invention, see Figure 2 The outer contours of the concave portion 121 and the convex portion 122 are each polygonal.

[0045] The outer peripheral contour of the concave portion 121 and the convex portion 122 refers to the geometric contour formed by their circumferential edges. The circumferential contour of each concave portion 121 and each convex portion 122 can be designed as an irregular polygonal shape. For example, Figure 2 As shown, the outer peripheral contour of the concave portion 121 can be an irregular hexagon composed of six segments SE. In the circumferential direction of the circumferential portion 12, adjacent concave portions 121 and convex portions 122 can be designed to have complementary shapes, so that the convex portion 122 also presents an irregular polygon.

[0046] By configuring the outer contours of the recessed portion 121 and the protruding portion 122 as polygonal, their outer contours can be divided into multiple short segments SE. This helps optimize mechanical properties. On the one hand, the polygonal shape more evenly distributes stress under external forces, avoiding localized deformation or structural failure caused by concentrated stress. On the other hand, this configuration further improves the bending resistance and torsional rigidity of the housing 1, thereby enhancing the overall strength and durability of the circumferential portion 12.

[0047] Furthermore, the polygonal outer contour provides greater flexibility in the mold design and molding process for the concave portion 121 and the convex portion 122. The shorter SE section reduces the design difficulty of complex curves, helps optimize the material flow path, avoids the risk of incomplete filling, and further improves part molding quality and production efficiency.

[0048] It is understood that the hexagonal outer contour shapes of the concave and convex parts shown in the figures are merely exemplary, and the concave and convex parts may also adopt other outer contour shapes, which are not limited in the present invention.

[0049] In some embodiments of the present invention, the concave portion 121 and the convex portion 122 may be connected by a transition portion 13, wherein the transition portion 13 may be designed to have a curved surface. For example, by providing a chamfer at the location where the concave portion 121 and the convex portion 122 meet, the transition portion 13 may be formed, thereby making the transition between the concave portion 121 and the convex portion 122 smoother, rather than forming a sharp corner or abrupt geometric structure.

[0050] The smooth arc-shaped transition eliminates stress concentration issues that can arise from sharp connections. Under external forces, the curved surface evenly distributes stress, reducing the risk of local structural failure and thereby enhancing the overall strength and durability of the circumferential portion 12. Furthermore, the arc-shaped transition portion 13 mitigates the geometric changes between the concave portion 121 and the convex portion 122, resulting in the circumferential portion exhibiting higher bending and torsional rigidity under dynamic loads or vibration. This optimized design better protects against external shock and vibration, ensuring the structural stability of the housing 1.

[0051] Furthermore, the curved surface simplifies the injection molding process and reduces mold wear, extending mold life. The use of the curved transition portion 13 also improves the appearance of the housing 1. The smooth curved transition avoids surface defects that could be caused by sharp corners, giving the housing a more streamlined appearance.

[0052] In some embodiments of the present invention, the extension method of the protrusion 122 can be further limited. Figure 2 Each of the plurality of protrusions 122 may extend from a first edge 12E of the circumferential portion 12 to a second edge 12F of the circumferential portion 12 , wherein the first edge 12E is adjacent to the top 11 and opposite to the second edge 12F.

[0053] exist Figure 2 In the embodiment, the first edge 12E and the second edge 12F can be located at the upper and lower sides of the circumferential portion 12, respectively, and thus can also be referred to as the upper edge and the lower edge. The first edge 12E, as the upper edge, is directly adjacent to the top 11 and forms the connection portion between the circumferential portion 12 and the top 11.

[0054] The protrusions 122 extend from the first edge 12E to the second edge 12F, running through the entire height range of the circumferential portion 12, achieving complete continuity between the upper and lower edges. In contrast, the recesses 121 also extend from the first edge 12E toward the second edge 12F, but do not reach the second edge 12F. This results in an alternating arrangement of recesses 121 and protrusions 122 near the first edge 12E, forming a spaced-apart concave-convex structure. However, near the second edge 12F, the protrusions 122 extend continuously along the circumferential direction of the circumferential portion 12, forming a continuous, uninterrupted convex structure along the lower edge.

[0055] Through this arrangement, the alternating arrangement of recessed portions 121 and protruding portions 122 near first edge 12E forms a distinct concave-convex structure. This effectively disperses stress through optimized surface geometry, improving the housing's bending and torsional resistance in the upper edge region while also providing diverse design options for this area. Near second edge 12F, the continuous extension of protruding portions 122 imparts greater rigidity and integrity to the circumferential portion 12 in the lower edge region, thereby enhancing the housing's impact resistance and dimensional stability.

[0056] This design also optimizes the injection molding process. Near first edge 12E, the presence of recessed portion 121 divides the material flow path into multiple shorter sections, helping to reduce the risk of underfill. Near second edge 12F, the continuity of protruding portion 122 simplifies the material flow path, improving molding efficiency and reducing mold wear.

[0057] In order to facilitate the fluid on the top 11 to be discharged from the housing 1 as quickly as possible, in some embodiments of the present invention, see Figure 2 The housing 1 may further include a guide groove 14 extending from the first edge 12E of the circumferential portion 12 to the second edge 12F of the circumferential portion 12 , so that the first edge 12E and the second edge 12F of the housing 1 are connected via the guide groove 14 .

[0058] like Figure 2As shown, the surface of top 11 is not flat, but rather an irregularly curved surface, with one side of housing 1 being higher than the other. By positioning guide groove 14 on the lower side of housing 1, fluid on top 11 can flow toward the lower side under the action of gravity and more easily flow into the opening of guide groove 14 located at first edge 12E. Once the fluid enters guide groove 14, it can be guided by guide groove 14 to flow to the opening of guide groove 14 located at second edge 12F, and then exit housing 1 through this opening. Guide groove 14 can facilitate the fluid at top 11 to flow out of housing 1 as quickly as possible along a predetermined path, reducing the chance of fluid leaking into housing space RC of housing 1. When housing 1 is used as the upper cover of a head-up display device, guide groove 14 can effectively guide fluids, such as rainwater, away from the device, preventing it from damaging or contaminating components within the device.

[0059] In the case where the housing 1 is used as an upper cover of the head-up display device, the housing 1 needs to be connected to the bottom shell 2A of the head-up display device (see Figure 5 ) together to define an enclosed space for accommodating the internal components of the device. In view of this, in some embodiments of the present invention, the housing 1 may further include a connecting portion 15 formed on the circumferential outer side of the circumferential portion 12. The connecting portion 15 can be used to connect the housing 1 to other components of the head-up display device to define a stable and enclosed accommodation space.

[0060] Figure 2 In the illustrated embodiment, the connection portion 15 is designed as a snap-fit ​​mechanism to mate with corresponding snap-fit ​​mechanisms on other components of the head-up display. This snap-fit ​​connection ensures reliable fastening of the housing 1 to the bottom case 2A, while also offering the advantage of detachability, facilitating device maintenance, cleaning, and component replacement. The snap-fit ​​design also offers the advantages of simple operation and efficient assembly, further enhancing the device's operability and user experience.

[0061] More importantly, this connection method can ensure a tight fit between the housing 1 and the bottom shell 2A of the head-up display device, preventing external dust or moisture from entering the device, thereby improving the protection performance and working reliability of the head-up display device.

[0062] In some embodiments of the present invention, the housing 1 may further include a positioning portion 16 , which may be used to fix the position of the housing 1 relative to other components during the process of connecting the housing 1 to other components of the head-up display device.

[0063] exist Figure 3 and Figure 4In the embodiment shown, the housing 1 further includes a positioning portion 16 for cooperating with the bottom housing 2A of the head-up display device. The positioning portion 16 is further divided into an external positioning portion 16A located on the outside (see Figure 3 ) and the inner positioning portion 16B located on the inner side (see Figure 4 Both positioning portions are designed to cooperate with corresponding positioning portions on the bottom shell 2A to achieve a temporary connection between the housing 1 and the bottom shell 2A, thereby limiting the relative displacement between the housing 1 and the bottom shell 2A.

[0064] Specifically, if Figure 3 As shown, the external positioning portion 16A is in the form of a hole, and its matching component is a positioning pin on the bottom shell 2A. When the housing 1 and the bottom shell 2A are aligned and installed, the positioning pin is inserted into the hole of the external positioning portion 16A to achieve preliminary mechanical matching. Figure 4 As shown, the internal positioning portion 16B is designed as a plate-like structure, and its corresponding bottom shell 2A component is a positioning groove. When the housing 1 is installed on the bottom shell 2A, the internal positioning portion 16B is inserted into the positioning groove to further ensure the alignment of the two.

[0065] During the assembly process of the housing 1 and the bottom shell 2A, these positioning features serve as guides and limiters. By aligning the multiple external positioning features 16A and internal positioning features 16B of the housing 1 with the positioning pins and positioning slots on the bottom shell 2A, the housing 1 and the bottom shell 2A can quickly complete preliminary alignment. Once the positioning features are engaged, the housing 1 and the bottom shell 2A can be moved toward each other along the assembly direction for final assembly. During this process, the positioning features distributed at various locations on the housing and bottom shell 2A can exert restraining forces on the housing and bottom shell 2A from multiple directions, limiting relative displacement between the two in directions other than the assembly direction, thereby ensuring installation accuracy and stability.

[0066] In addition to the above positioning parts, see Figure 4 Second edge 12F of housing 1 can also be configured as a step, with the portion near the end of second edge 12F having a smaller outer circumference, allowing this portion to be inserted into bottom housing 2A. This portion not only further guides assembly of housing 1 and bottom housing 2A, but also facilitates a sealed connection between the two, preventing impurities and contaminants from the surrounding environment from entering the interior of the head-up display device.

[0067] The specific form of the housing 1 can be adjusted according to different application requirements. For example, the top 11 of the housing 1 can be designed as a curved surface to meet specific mechanical or appearance requirements. However, in some embodiments of the present invention, see Figure 3 The top 11 may also have a through opening 17. In this case, a separately manufactured top plate (not shown) may be installed above the top 11 of the housing 1 to close the top.

[0068] By designing the through opening 17 in the top portion 11 and covering it with a separate top plate, the difficulty of injection molding the housing 1 can be significantly reduced. Since the top portion 11 of the housing 1 no longer needs to be molded in one piece as a complete closed structure, the mold design and manufacturing are simpler, thereby improving the production efficiency and reducing the manufacturing cost. In addition, the independent design of the top plate increases the structural flexibility of the housing 1. According to actual needs, the top plate can be manufactured with different materials or processes to meet special performance requirements, such as enhancing the rigidity, impact resistance or weather resistance of the top portion. Moreover, the separate top plate also facilitates subsequent installation, maintenance or replacement, thereby improving the maintainability of the device.

[0069] Referring to Figure 5 Some embodiments of the present application also propose a head-up display device 2. The head-up display device 2 can include the housing 1 for the head-up display device as described above and the bottom case 2A.

[0070] The above merely provides a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which shall be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A housing for a head-up display device, characterized in that: The housing is integrally formed and includes a top portion and a circumferential portion disposed around the top portion, wherein the top portion and the circumferential portion jointly define a receiving space; The circumferential portion includes a plurality of recessed portions and a plurality of protruding portions formed on its circumferential outer side, the plurality of recessed portions and the plurality of protruding portions are alternately arranged in the circumferential direction of the circumferential portion, and the recessed portions at least partially separate the protruding portions from other protruding portions.

2. The housing for a head-up display device according to claim 1, characterized in that: The circumferential outer side of the circumferential portion has a curved surface shape that protrudes in a direction away from the center of the housing.

3. The housing for a head-up display device according to claim 1, characterized in that: The outer peripheral contours of the concave portion and the convex portion are each polygonal.

4. The housing for a head-up display device according to claim 3, characterized in that: The concave portion and the convex portion are connected via a transition portion, wherein the transition portion has an arc-shaped surface.

5. The housing for a head-up display device according to any one of claims 1 to 4, characterized in that: Each of the plurality of protrusions extends from a first edge of the circumferential portion to a second edge of the circumferential portion, wherein the first edge is adjacent to the top and opposite to the second edge.

6. The housing for a head-up display device according to claim 5, characterized in that: The housing further includes a guide groove extending from the first edge of the circumferential portion to the second edge of the circumferential portion, so that the first edge and the second edge of the housing are in communication with each other through the guide groove.

7. The housing for a head-up display device according to any one of claims 1 to 4, characterized in that: The housing further includes a connecting portion formed on the circumferential outer side of the circumferential portion, and the connecting portion is used to connect the housing with other components of the head-up display device.

8. The housing for a head-up display device according to claim 7, characterized in that: The housing further includes a positioning portion, which is used to fix the position of the housing relative to the other components during the process of connecting the housing with the other components of the head-up display device.

9. The housing for a head-up display device according to any one of claims 1 to 4, characterized in that: The top portion has a through opening.

10. A head-up display device, characterized in that: The head-up display device includes the housing for a head-up display device according to any one of claims 1 to 9.

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