HUD light-transmitting cover narrow-edge anti-drop fixing structure

Abstract

The utility model discloses a narrow-edge anti-drop fixing structure for an HUD (Head Up Display) light-transmitting cover, which relates to the technical field of HUD light-transmitting covers and comprises an upper shell, a cover plate is arranged on the inner side of the upper shell, and a fixing assembly is arranged between the upper shell and the cover plate; the cover plate is provided with a plurality of fixing assemblies, each fixing assembly comprises a clamping hole, an abutting block is arranged in the clamping hole, the top of the abutting block is fixedly connected with a limiting block, and a buckle is arranged in each clamping hole. Through the arrangement of the fixing assemblies, the problem that due to the fact that the adhesive area of the cover plate is small, adhesive degumming is caused in the high-temperature and high-humidity environment can be solved; through clamping connection of a profiling surface and a limiting hole on a buckle in the fixing assembly and an abutting block and a limiting block in the clamping hole, stable connection between the upper shell and the cover plate is ensured, the problem that the sealing performance of the upper shell and the cover plate is reduced due to adhesive failure can be effectively solved, dust and other fine particles are effectively prevented from permeating from the joint, and the service life of the upper shell and the cover plate is prolonged. And the fault maintenance rate of internal mechanical parts and electronic components is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of HUD light-transmitting covers, in particular to a narrow edge anti-dropping fixing structure of a HUD light-transmitting cover. Background Art

[0002] HUD, or head-up display, is a common information display technology used in vehicles such as cars and airplanes. HUD projects important information into the driver's field of vision, allowing the driver to obtain important data such as vehicle status and navigation information without shifting his or her sight. The HUD transparent cover refers to a transparent cover or screen used to cover the HUD system. This cover is specially designed to allow the information projected by the HUD system to be displayed within the driver's field of vision without obstructing or interfering with the driver's field of vision, and to prevent dust and impurities from entering the HUD system.

[0003] When the existing light-transmitting cover is connected to the HUD, the glue is only applied on the narrow side of the cover for bonding, so that the glue can only cover the surface of the narrow side, resulting in a small glue area, which makes the bonding force insufficient. At high temperatures, the viscosity of the glue may decrease, and the bonding strength may be weakened. In a high humidity environment, the glue may absorb moisture, change its chemical properties, and then affect its bonding performance. Therefore, the glue may lose its viscosity under high temperature and high humidity conditions, resulting in debonding problems, allowing dust to enter the HUD, affecting the normal operation of the HUD. Utility Model Content

[0004] In order to solve the technical problems raised in the above-mentioned background technology, the utility model provides a HUD light-transmitting cover narrow edge anti-detachment fixing structure, which has the advantages that: the fixing component can avoid the problem of adhesive debonding caused by the small adhesive area of ​​the cover plate in a high temperature and high humidity environment, and the locking connection of the profiling surface on the buckle in the fixing component, the limiting hole and the abutment block and the limiting block inside the clamping hole is ensured to ensure a firm connection between the upper shell and the cover plate, which can effectively solve the problem of reduced sealing of the upper shell and the cover plate due to adhesive debonding, effectively prevent dust and other fine particles from penetrating from the connection, and reduce the failure repair rate of internal mechanical parts and electronic components.

[0005] In order to achieve the above purpose, the utility model specifically adopts the following technical solutions:

[0006] A HUD light-transmitting cover narrow edge anti-detachment fixing structure comprises an upper shell, a cover plate is arranged on the inner side of the upper shell, and a fixing component is arranged between the upper shell and the cover plate;

[0007] There are multiple groups of fixing components, each group of fixing components includes a card hole, and abutment blocks are arranged inside the card hole. The top of the abutment block is fixedly connected to the limit block, and a buckle is arranged inside each card hole, which is used to fix the upper shell and the cover plate.

[0008] Through the above technical scheme: the fixing component can avoid the problem of adhesive debonding caused by the small adhesive area of ​​the cover in a high temperature and high humidity environment. The locking connection of the contoured surface, the limiting hole and the abutment block and the limiting block inside the clamping hole on the fixing component ensures a firm connection between the upper shell and the cover. It can effectively solve the problem of reduced sealing of the upper shell and the cover due to adhesive debonding, effectively prevent dust and other fine particles from penetrating from the connection, and reduce the failure maintenance rate of internal mechanical parts and electronic components.

[0009] The utility model is further configured such that each set of fixing components also includes two imitation surfaces, the two imitation surfaces are located on the inner side of the buckle, the two ends of the two imitation surfaces are respectively abutted against the abutment blocks on the cover plate and the upper shell body, and a limiting hole is provided inside the buckle.

[0010] The utility model is further configured such that each limiting block is located inside a corresponding limiting hole, and each buckle is made of elastic plastic material.

[0011] Through the above technical solution: when the cover plate needs to be installed, first glue the narrow edge of the cover plate. After the gluing is completed, the cover plate is bonded to the upper shell. After the bonding is completed, the buckle is inserted into the inside of the buckle hole so that the contoured surface above the buckle abuts against the cover plate, and the contoured surface below the buckle contacts the abutment block. The contoured surface adapts to the abutment block structure in the buckle hole of the upper shell to prevent the buckle from falling off due to abnormal installation or external factors. At the same time, the limit block is just located inside the limit hole to complete the installation of the buckle.

[0012] The utility model is further configured such that each contoured surface top located above the buckle is fixedly connected with a triangular block, one end of each triangular block abuts against the cover plate, and a sealing strip is provided between the upper shell and the cover plate, and the sealing strip is used to improve the sealing performance of the connection between the upper shell and the cover plate.

[0013] Through the above technical solution: the triangular block can provide additional support and fixation, making the connection between the buckle and the cover more secure, and can also increase the contact area of ​​the connection, thereby improving the stability of the connection and further preventing the buckle from loosening or falling off due to external force or vibration. The sealing strip can effectively fill the gap between the upper shell and the cover to prevent dust, water vapor and other impurities from entering the HUD.

[0014] The utility model is further configured that the outer wall of the sealing strip is fixedly connected to the limit strip, the ends of the upper shell and the cover plate facing each other are both provided with sealing grooves, the sealing strip and the limit strip are located inside the sealing groove and match the sealing groove.

[0015] Through the above technical solution: the setting of the sealing strip outer wall limit strip can correctly position the sealing strip at the predetermined position of the connection, limit the movement range of the sealing strip, and thus ensure that the sealing strip can effectively fill the gap at the connection.

[0016] The utility model is further configured such that a plurality of protrusions are fixedly connected to the outer wall of the sealing strip, a plurality of grooves are provided on the outer sides of the sealing groove inside the upper shell and the cover plate, and the plurality of protrusions are respectively interference-fitted with the corresponding grooves.

[0017] Through the above technical solution: the interference fit between the protrusions on the outside of the sealing strip and the multiple grooves inside the sealing groove can further fix the position of the sealing strip. The protrusions and grooves can provide additional friction and resistance to prevent the sealing strip from accidentally shifting or falling off during use, thereby increasing the stability and reliability of the connection.

[0018] The utility model is further configured that a magnetic attraction block is provided in the sealing groove inside the upper shell, and a magnetic plate is provided in the sealing groove inside the cover plate, and the magnetic plate is magnetically connected to the magnetic attraction block.

[0019] Through the above technical solution: the attraction between the magnetic plate and the magnetic block can further increase the stability of the connection and prevent the sealing strip from accidentally shifting or falling off during use.

[0020] The utility model is further configured that a polarizing film is arranged inside the cover plate, a wave plate is arranged below the polarizing film, and a cylindrical lens layer is arranged between the polarizing film and the wave plate.

[0021] Through the above technical solution: adding a cylindrical lens layer inside the polarizer and wave plate can help reduce reflection and refraction from the cover surface, thereby improving the clarity and readability of the display screen, helping to reduce glare and reflection problems in environments with strong sunlight, allowing the driver to see the information on the HUD more clearly.

[0022] The beneficial effects of the utility model are:

[0023] 1. The utility model can avoid the problem of adhesive debonding of the cover plate due to the small adhesive area in a high temperature and high humidity environment through the setting of the fixing component. The locking connection of the profiling surface on the buckle in the fixing component, the limiting hole and the abutment block and the limiting block inside the clamping hole ensures a stable connection between the upper shell and the cover plate, which can effectively solve the problem of reduced sealing of the upper shell and the cover plate due to adhesive debonding, effectively prevent dust and other fine particles from penetrating from the connection, and reduce the failure maintenance rate of internal mechanical parts and electronic components.

[0024] 2. When the HUD of the utility model is used for a long time, it will be exposed to the environment for a long time, such as sunlight, high temperature, humidity, etc., which will cause material aging. Because the upper shell and the cover plate are two different materials, the thermal expansion and contraction coefficients and aging characteristics of different materials are different. Long-term exposure to the environment may cause the thermal expansion and contraction between the upper shell and the cover plate to be mismatched, so that the connection between the upper shell and the cover plate will undergo slight changes, resulting in a gap between them, which will cause the connection to loosen and allow dust to enter the inside of the HUD. The setting of the sealing strip can effectively fill the gap between the upper shell and the cover plate to prevent dust, water vapor and other impurities from entering the inside of the HUD. The setting of the limiting strip on the outer wall of the sealing strip can correctly position the sealing strip at the predetermined position of the connection, limit the movement range of the sealing strip, and thus ensure that the sealing strip can effectively fill the gap at the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a HUD light-transmitting cover narrow edge anti-detachment fixing structure proposed by the utility model;

[0026] Figure 2 This is an exploded view of a HUD light-transmitting cover narrow edge anti-detachment fixing structure proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the connection structure between the upper shell and the cover plate of a HUD light-transmitting cover narrow edge anti-detachment fixing structure proposed by the utility model;

[0028] Figure 4 The utility model provides a HUD light-transmitting cover narrow edge anti-dropping fixing structure Figure 3 A magnified view of the structure at center;

[0029] Figure 5 This is a cross-sectional view of the connection between the upper shell and the cover plate of a HUD light-transmitting cover narrow edge anti-detachment fixing structure proposed by the utility model;

[0030] Figure 6 A schematic diagram of the connection between the upper shell and the sealing strip of the narrow edge anti-detachment fixing structure of the HUD light-transmitting cover proposed by the utility model;

[0031] Figure 7 This is a schematic diagram of the connection structure of the magnetic plate and the magnetic block of the HUD light-transmitting cover narrow edge anti-detachment fixing structure proposed by the utility model;

[0032] Figure 8 This is a schematic diagram of the internal structure of a cover plate of a HUD light-transmitting cover narrow edge anti-detachment fixing structure proposed by the utility model.

[0033] In the figure: 1. upper shell; 2. cover plate; 3. buckle; 4. contoured surface; 5. limiting hole; 6. limiting block; 7. clamping hole; 8. abutment block; 9. triangular block; 10. limiting strip; 11. sealing strip; 12. groove; 13. magnetic plate; 14. magnetic block; 15. polarizer; 16. cylindrical lens layer; 17. wave plate; 18. bump. DETAILED DESCRIPTION

[0034] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] Embodiment 1

[0037] Reference Figure 1-Figure 5 A HUD light-transmitting cover narrow edge anti-detachment fixing structure comprises an upper shell 1, a cover plate 2 is arranged on the inner side of the upper shell 1, and a fixing component is arranged between the upper shell 1 and the cover plate 2;

[0038] There are multiple groups of fixing components, each group of fixing components includes a card hole 7, and abutment blocks 8 are provided inside the card hole 7. The top of the abutment block 8 is fixedly connected to the limit block 6. A buckle 3 is provided inside each card hole 7. The buckle 3 is used to fix the upper shell 1 and the cover plate 2. Each group of fixing components also includes two profiling surfaces 4. The two profiling surfaces 4 are located on the inner side of the buckle 3. The two ends of the two profiling surfaces 4 are respectively abutted against the abutment blocks 8 on the cover plate 2 and the upper shell 1. A limiting hole 5 is opened inside the buckle 3. Each limit block 6 is respectively located inside the corresponding limit hole 5. Each buckle 3 is made of elastic plastic material.

[0039] By setting up the fixing component, the problem of adhesive debonding of the cover plate 2 due to its small adhesive area in a high temperature and high humidity environment can be avoided. The locking connection of the profiling surface 4, the limiting hole 5 and the abutment block 8 and the limiting block 6 inside the clamping hole 7 on the buckle 3 in the fixing component ensures a firm connection between the upper shell 1 and the cover plate 2, which can effectively solve the problem of reduced sealing of the upper shell 1 and the cover plate 2 due to adhesive debonding, effectively prevent dust and other fine particles from penetrating from the connection, and reduce the failure repair rate of internal mechanical parts and electronic components.

[0040] When it is necessary to install the cover 2, first glue the narrow edge of the cover 2. After the gluing is completed, the cover 2 is bonded to the upper shell 1. After the bonding is completed, the buckle 3 is inserted into the clamping hole 7 so that the profiling surface 4 above the buckle 3 abuts against the cover 2, and the profiling surface 4 below the buckle 3 contacts the abutting block 8. The profiling surface 4 adapts to the abutting block 8 structure in the clamping hole 7 of the upper shell 1 to prevent the buckle 3 from falling off due to abnormal installation or external factors. At the same time, the limit block 6 is just located inside the limit hole 5 to complete the installation of the buckle 3.

[0041] Reference Figure 8 A polarizer 15 is disposed inside the cover plate 2 , a wave plate 17 is disposed below the polarizer 15 , and a cylindrical lens layer 16 is disposed between the polarizer 15 and the wave plate 17 .

[0042] The cylindrical lens layer 16 installed inside the polarizer 15 and the wave plate 17 can help reduce reflection and refraction from the surface of the cover plate 2, thereby improving the clarity and readability of the display screen, helping to reduce glare and reflection problems in an environment with strong sunlight, and allowing the driver to see the information on the HUD more clearly.

[0043] Embodiment 2

[0044] Reference Figure 1-Figure 1 A triangular block 9 is fixedly connected to the top of each profiling surface 4 above the buckle 3, and one end of each triangular block 9 is in contact with the cover plate 2. A sealing strip 11 is provided between the upper shell 1 and the cover plate 2. The sealing strip 11 is used to improve the sealing performance of the connection between the upper shell 1 and the cover plate 2. A limiting strip 10 is fixedly connected to the outer wall of the sealing strip 11. A sealing groove is provided at the end of the upper shell 1 facing the cover plate 2. The sealing strip 11 and the limiting strip 10 are located inside the sealing groove and match the sealing groove.

[0045] The triangular block 9 can provide additional support and fixation, making the connection between the buckle 3 and the cover plate 2 more secure, and can also increase the contact area of ​​the connection, thereby improving the stability of the connection and further preventing the buckle 3 from loosening or falling off due to external force or vibration.

[0046] When the HUD is used for a long time, it will be exposed to the environment for a long time, such as sunlight, high temperature, humidity, etc., which will cause material aging. Since the upper shell 1 and the cover plate 2 are two different materials, the thermal expansion and contraction coefficients and aging characteristics of different materials are different. Long-term exposure to the environment may cause the thermal expansion and contraction between the upper shell 1 and the cover plate 2 to be mismatched, so that the connection between the upper shell 1 and the cover plate 2 will undergo slight changes, resulting in a gap between them, which will cause the connection to loosen and allow dust to enter the interior of the HUD. The setting of the sealing strip 11 can effectively fill the gap between the upper shell 1 and the cover plate 2 to prevent dust, water vapor and other impurities from entering the interior of the HUD. The setting of the outer wall limit strip 10 of the sealing strip 11 can correctly position the sealing strip 11 at the predetermined position of the connection, limit the movement range of the sealing strip 11, and thereby ensure that the sealing strip 11 can effectively fill the gap at the connection.

[0047] Embodiment 3

[0048] Reference Figure 7 A plurality of protrusions 18 are fixedly connected to the outer wall of the sealing strip 11, a plurality of grooves 12 are provided on the outer sides of the sealing grooves inside the upper shell 1 and the cover plate 2, and the plurality of protrusions 18 are respectively interference fit with the corresponding grooves 12, a magnetic block 14 is provided in the sealing groove inside the upper shell 1, and a magnetic plate 13 is provided in the sealing groove inside the cover plate 2, and the magnetic plate 13 is magnetically connected to the magnetic block 14.

[0049] The interference fit between the protrusions 18 on the outside of the sealing strip 11 and the multiple grooves 12 inside the sealing groove can further fix the position of the sealing strip 11. The protrusions 18 and the grooves 12 can provide additional friction and resistance to prevent the sealing strip 11 from accidentally shifting or falling off during use, thereby increasing the stability and reliability of the connection.

[0050] The attraction between the magnetic plate 13 and the magnetic block 14 can further increase the stability of the connection and prevent the sealing strip 11 from accidentally shifting or falling off during use.

[0051] Working principle: when it is necessary to install the cover plate 2, first glue the narrow side of the cover plate 2. After the gluing is completed, the cover plate 2 is bonded to the upper shell 1. After the bonding is completed, the buckle 3 is inserted into the inside of the clamping hole 7, so that the profiling surface 4 above the buckle 3 is in contact with the cover plate 2, and the profiling surface 4 below the buckle 3 is in contact with the abutment block 8. The profiling surface 4 is adapted to the abutment block 8 structure in the clamping hole 7 of the upper shell 1 to prevent the buckle 3 from falling off due to abnormal installation or external factors. At the same time, the limit block 6 is just located inside the limit hole 5 to complete the installation of the buckle 3. During the connection process of the upper shell 1 and the cover plate 2, the sealing strip 11 is placed inside the sealing groove of the upper shell 1 and the cover plate 2 to improve the sealing performance, because when the HUD is used for a long time, it is exposed to the environment for a long time, such as sunlight, high temperature, humidity, etc. , which will cause material aging, because the upper shell 1 and the cover plate 2 are two different materials, and the thermal expansion and contraction coefficients and aging characteristics of different materials are different. Long-term exposure to the environment may cause the thermal expansion and contraction between the upper shell 1 and the cover plate 2 to be mismatched, so that the connection between the upper shell 1 and the cover plate 2 will undergo slight changes, resulting in a gap between them, which will cause the connection to loosen and allow dust to enter the HUD. The setting of the sealing strip 11 can effectively fill the gap between the upper shell 1 and the cover plate 2 to prevent dust, water vapor and other impurities from entering the HUD. The setting of the outer wall limit strip 10 of the sealing strip 11 can correctly position the sealing strip 11 at the predetermined position of the connection, limit the movement range of the sealing strip 11, and thereby ensure that the sealing strip 11 can effectively fill the gap at the connection.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A HUD light-transmitting cover narrow edge anti-dropping fixing structure, characterized in that: include: An upper shell (1), wherein a cover plate (2) is provided on the inner side of the upper shell (1), and a fixing component is provided between the upper shell (1) and the cover plate (2); The fixing components are provided in a plurality of groups, each group of the fixing components comprises a clamping hole (7), an abutment block (8) is provided inside the clamping hole (7), the top of the abutment block (8) is fixedly connected to the limit block (6), and a buckle (3) is provided inside each of the clamping holes (7), and the buckle (3) is used to fix the upper shell (1) and the cover plate (2).

2. The HUD light-transmitting cover narrow edge anti-detachment fixing structure according to claim 1, characterized in that: Each group of the fixing components further comprises two profiling surfaces (4), the two profiling surfaces (4) being located on the inner side of the buckle (3), the two ends of the two profiling surfaces (4) respectively abutting against abutment blocks (8) on the cover plate (2) and the upper shell (1), and a limiting hole (5) is provided inside the buckle (3).

3. The HUD light-transmitting cover narrow edge anti-detachment fixing structure according to claim 2, characterized in that: Each of the limiting blocks (6) is located inside the corresponding limiting hole (5), and each of the buckles (3) is made of elastic plastic material.

4. The HUD light-transmitting cover narrow edge anti-detachment fixing structure according to claim 1, characterized in that: A triangular block (9) is fixedly connected to the top of each contoured surface (4) located above the buckle (3); one end of each triangular block (9) is in contact with the cover plate (2); a sealing strip (11) is provided between the upper shell (1) and the cover plate (2); the sealing strip (11) is used to improve the sealing performance of the connection between the upper shell (1) and the cover plate (2).

5. The HUD light-transmitting cover narrow edge anti-detachment fixing structure according to claim 4, characterized in that: The outer wall of the sealing strip (11) is fixedly connected to the limit strip (10); the ends of the upper shell (1) and the cover plate (2) facing each other are both provided with sealing grooves; the sealing strip (11) and the limit strip (10) are located inside the sealing groove and match the sealing groove.

6. The HUD light-transmitting cover narrow edge anti-detachment fixing structure according to claim 5, characterized in that: The outer wall of the sealing strip (11) is fixedly connected with a plurality of protrusions (18); the outer sides of the sealing grooves inside the upper shell (1) and the cover plate (2) are provided with a plurality of grooves (12); and the plurality of protrusions (18) are respectively interference-fitted with the corresponding grooves (12).

7. The HUD light-transmitting cover narrow edge anti-detachment fixing structure according to claim 6, characterized in that: The sealing groove inside the upper shell (1) is provided with a magnetic attraction block (14), and the sealing groove inside the cover plate (2) is provided with a magnetic plate (13), and the magnetic plate (13) is magnetically connected to the magnetic attraction block (14).

8. The HUD light-transmitting cover narrow edge anti-detachment fixing structure according to claim 1, characterized in that: A polarizing film (15) is provided inside the cover plate (2), a wave plate (17) is provided below the polarizing film (15), and a cylindrical lens layer (16) is provided between the polarizing film (15) and the wave plate (17).

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