Head-up display mounting structure

Abstract

The utility model relates to a head-up display installation structure which comprises a curved mirror and installation supports arranged on the two sides of the curved mirror, rotating shafts are arranged on the two sides of the curved mirror, and each installation support comprises an installation groove, a clamping hole penetrating through the side wall of the installation groove and an elastic piece installed at the opening of the installation groove. A clamping hole is formed in the rotating shaft, a cut-off groove is formed in the top of the clamping hole, the cut-off groove is connected with the clamping hole, two plane parts are arranged on the peripheral surface of the rotating shaft, and the plane parts are symmetrical about the axis of the rotating shaft. The mounting supports for mounting the rotating shaft are arranged on the two sides of the curved mirror, and different from the mounting mode of shaft hole connection on one side and shaft supporting groove connection on the other side in the prior art, abnormal sound generated by the head-up display in the vehicle running process can be effectively eliminated, and meanwhile the production and manufacturing cost is reduced.

Description

Technical Field

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

[0002] With the development of the automotive industry, HUD (head-up display) has gradually become popular. The head-up display adjusts the image height by rotating the curved mirror.

[0003] like Figure 6 and Figure 7 As shown, the existing head-up display generally includes a curved mirror 4, a base 5 and a cover. The rotating shafts 41 on both sides of the curved mirror 4 are installed on the base 5, and the cover is then covered on the base 5. Figure 6 , the curved mirror 4 and one side of the base 5 are connected by a shaft hole ( Figure 6 On the right side of the diagram), the other side is a shaft support groove connection limited by the spring 6 ( Figure 6 As shown on the left side of the figure), it is found in the actual production process of the above-mentioned existing scheme that if the shaft-hole fits into the maximum tolerance gap, the head-up display will make an abnormal sound when the car passes through a bumpy road, and the abnormal sound will be enhanced as the shaft-hole gap increases. In order to reduce the occurrence of abnormal noise, it is necessary to improve the fitting accuracy of the shaft hole, so higher mold accuracy is often required, which increases the mold cost to a certain extent. In addition, the other side of the curved mirror 4 is the shaft and support groove structure limited by the spring 6, and its specific structure is as follows (as shown in the figure). Figure 7 As shown in the figure, the shaft 41 is placed in the semicircular support groove, and the spring piece 6 is pressed against the shaft 41. After the upper cover is assembled, the ribs 7 on the upper cover press the spring piece 6 again. Since the support groove is semicircular in shape, it only plays the role of placing the shaft 41. Therefore, the force of the hard limit of the shaft 41 mainly comes from the elastic force of the spring piece 6 and the vertical force provided by the ribs 7 of the upper cover. In actual production, it is found that under this installation method, since the curved mirror 4 has no more reliable hard limit structure, the spring piece 6 is subjected to a large force. In the long run, due to the structural strength and fatigue of the spring piece 6, the spring piece 6 is subjected to a large force. Due to the constraints of labor strength, when the weight of the curved mirror 4 is too heavy, or the head-up display is subjected to too much impact or random vibration, it is easy to cause the deformation and failure of the spring piece 6 or even breakage, resulting in failure of the curved mirror 4 shaft 41 mechanism. In addition, if the pressure exerted by the ribs 7 of the upper cover is too large, when the curved mirror 4 is turned on and the shaft 41 rotates, due to the roundness tolerance problem of the shaft 41, the shaft 41 will occasionally lift the spring piece 6 during the rotation process, and make the spring piece 6 hit the ribs 7 of the upper cover, making a clicking sound and generating abnormal startup noise, which greatly affects the user experience. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a head-up display mounting structure that can solve the above problems and has a simple, reliable structure and low cost.

[0005] The purpose of this application is achieved through the following technical solutions:

[0006] A head-up display mounting structure includes a curved mirror and mounting brackets arranged on both sides of the curved mirror, a rotating shaft is provided on both sides of the curved mirror, the mounting bracket includes a mounting slot, a clamping hole passing through the side wall of the mounting slot, and an elastic sheet installed at the opening of the mounting slot, a truncation groove is provided at the top of the clamping hole, the truncation groove is connected to the clamping hole, and the outer peripheral surface of the rotating shaft is provided with two planar portions, and the planar portions are symmetrical about the axis of the rotating shaft.

[0007] In the above technical solution, a mounting bracket is provided on each side of the curved mirror for mounting the rotating shafts on both sides, wherein the straight-line distance between the two flat portions on the rotating shaft is less than or equal to the width of the truncated groove, so that the rotating shaft can be placed into the clamping hole through the truncated groove. During assembly, by rotating the mounting bracket so that the flat portion on the rotating shaft is coplanar with the side wall of the truncated groove, the rotating shaft can be placed into the clamping hole through the truncated groove. After the rotating shaft is placed into the clamping hole, the end of the rotating shaft is located in the mounting groove, and then an elastic sheet is installed at the opening of the mounting groove. The rotating shaft is pressed into the mounting groove by the elastic sheet, eliminating the fitting clearance between the rotating shaft and the clamping hole, improving stability, and preventing abnormal noise when passing through bumpy roads. After the elastic sheet is installed, the mounting bracket is fixedly installed on a base or other structure connected to the vehicle interior, and the curved mirror is driven to rotate by a driving device during use.

[0008] Optionally, as a possible implementation manner, limiting rings are provided on both sides of the planar portion, and the limiting rings protrude from the outer circumferential surface of the rotating shaft.

[0009] In the above technical solution, limiting rings are provided on both sides of the planar portion. The limiting rings are used to limit the axial position of the rotating shaft after the rotating shaft is installed in the clamping hole, thereby improving the overall stability.

[0010] Optionally, as a possible implementation manner, a plurality of fixing holes are provided on the mounting bracket, an avoidance groove is opened on the mounting bracket, and the fixing holes penetrate to the bottom of the avoidance groove.

[0011] In the above technical solution, the fixing holes on the mounting bracket are used for fasteners such as screws to connect and fix the mounting bracket to the screw column or other structure on the base, and the avoidance groove is located at a position corresponding to the fixing hole to make way for the screw column.

[0012] Optionally, as a possible implementation manner, the elastic sheet includes a fixing portion and a pressing portion, the pressing portion is located in the mounting groove, and the fixing portion is provided with a hole that matches the fixing hole.

[0013] In the above technical solution, the fixing part is connected and fixed to the mounting bracket by fasteners such as screws, wherein the clamping part is located in the mounting groove, and the connection between the fixing part and the clamping part is bent downward to ensure that the clamping part can clamp the rotating shaft in the mounting groove under the action of elastic force, thereby eliminating the fitting clearance of the shaft hole, effectively improving the stability of the rotating shaft and the curved mirror, and preventing the head-up display from generating abnormal noise when passing through bumpy roads.

[0014] Optionally, as a possible implementation manner, a positioning column is further provided on the mounting bracket, and a positioning hole is provided on the fixing portion.

[0015] In the above technical solution, the elastic piece is positioned during installation by means of the positioning posts protruding from the mounting bracket. When the elastic piece is installed, the positioning posts are inserted into the positioning holes.

[0016] Optionally, as a possible implementation, a protruding limiting protrusion is provided at one end of the pressing portion, and a limiting slot cooperating with the limiting protrusion is provided on the side wall of the mounting groove.

[0017] In the above technical solution, the limiting protrusion is inserted into the limiting slot, and the elastic piece is limited by the limiting slot to ensure that the elastic piece is firmly installed.

[0018] Optionally, as a possible implementation, an arc-shaped rack is provided at the bottom of the curved mirror.

[0019] In the above technical solution, the arc-shaped rack is connected to the output end of the driving device, and the curved mirror is driven to rotate by driving the arc-shaped rack.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The present application provides a snap-in hole with a truncated groove on the mounting bracket, which cooperates with the flat portion symmetrically arranged on the rotating shaft. The assembly can be completed by simply rotating the mounting bracket, making the assembly of the curved mirror easier. When the rotating shaft rotates in the snap-in hole, the flat portion and the truncated groove can provide a reliable hard limit for the rotating shaft in the direction perpendicular to the axis, thereby improving the mechanical strength of the shaft-hole fit, reducing the influence of external force on the elastic sheet, thereby effectively avoiding deformation, failure and breakage of the elastic sheet, and increasing the service life of the head-up display. At the same time, the elastic sheet presses the rotating shaft, which can eliminate the fitting clearance of the shaft hole, improve the stability of the head-up display, and prevent the head-up display from making abnormal noise when it is on bumpy roads without the need for higher precision molds, thereby effectively saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 Schematic diagram of the structure after the curved mirror and the mounting bracket are installed in one embodiment.

[0024] Figure 2 for Figure 1 Magnified view of area A in center.

[0025] Figure 3 Schematic diagram of the structure of a curved mirror according to an embodiment.

[0026] Figure 4 for Figure 3 Magnified view of area B.

[0027] Figure 5 This is a schematic diagram of the structure after the mounting bracket and spring are installed.

[0028] Figure 6 Schematic diagram of the structure of a head-up display in the prior art.

[0029] Figure 7 This is an enlarged view of the side with the spring after the base and upper cover of the head-up display in the prior art are assembled.

[0030] Figures 1 to 5 Description of the reference numerals:

[0031] 1- curved mirror; 11- rotating shaft; 111- flat part; 112- limiting ring; 12- arc-shaped rack; 2- mounting bracket; 21- mounting slot; 22- snap-in hole; 23- cut-off slot; 24- fixing hole; 25- avoidance slot; 26- positioning column; 27- limiting slot; 3- elastic sheet; 31- fixing part; 32- pressing part; 321- limiting protrusion.

[0032] Figures 6 and 7 Description of the reference numerals:

[0033] 4-curved mirror; 41-rotating shaft; 5-base; 6-shrapnel; 7-ribs. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0037] Please refer to Figures 1 to 5 The present embodiment provides a head-up display mounting structure, which includes a curved mirror 1 and mounting brackets 2 arranged on both sides of the curved mirror 1. A rotating shaft 11 is provided on both sides of the curved mirror 1. The mounting bracket 2 includes a mounting groove 21, a clamping hole 22 penetrating the side wall of the mounting groove 21, and an elastic sheet 3 installed at the opening of the mounting groove 21. A truncation groove 23 is formed at the top of the clamping hole 22, and the truncation groove 23 is connected to the clamping hole 22. The outer peripheral surface of the rotating shaft 11 is provided with two flat portions 111, and the flat portions 111 are symmetrical about the axis of the rotating shaft 11.

[0038] In this embodiment, a mounting bracket 2 is provided on each side of the curved mirror 1 for mounting the rotating shafts 11 on both sides, wherein the clamping hole 22 is circular, the truncated groove 23 is square, and the truncated groove 23 is connected to the top of the clamping hole 22. The straight-line distance between the two flat portions 111 on the rotating shaft 11 is less than or equal to the width of the truncated groove 23, so that the rotating shaft 11 can pass through the truncated groove 23 and be inserted into the clamping hole 22. Specifically, when assembling the head-up display, first rotate the mounting bracket 2, adjust the angle of the mounting bracket 2, so that the flat portion 111 on the rotating shaft 11 is coplanar with the side wall of the truncated groove 23, and then the rotating shaft 11 can be inserted into the clamping hole 22. After the rotating shaft 11 is inserted into the clamping hole 22, slightly rotate the mounting bracket 2 to ensure that the rotating shaft 11 does not fall out. Then, install the elastic piece 3 on the mounting bracket 2, and fix the elastic piece 3 and the mounting bracket 2 together to the head-up display base by screws (not shown in the figure, the specific structure of the base can be referred to). Figure 6As shown in the figure, the elastic sheet 3 presses the rotating shaft 11 into the mounting groove 21, eliminating the fitting clearance between the rotating shaft 11 and the clamping hole 22, improving stability, and preventing abnormal noise when passing through bumpy roads. During specific use, the driving device drives the arc-shaped rack 12 at the bottom of the curved mirror 1 to rotate the curved mirror 1.

[0039] Among them, it should be noted that the flat portion 111 is cut and formed on the peripheral surface of the rotating shaft 11, and the flat portion 111 is parallel to the axis of the rotating shaft 11. During the rotation of the curved mirror 1, the flat portion 111 and the truncation groove 23 can provide a hard limit in the vertical direction of the axis for the rotating shaft 11, thereby improving the mechanical strength of the shaft-hole fit and reducing the influence of external force on the elastic sheet 3, thereby effectively avoiding deformation, failure and breakage of the elastic sheet 3 and improving the service life of the head-up display.

[0040] Please refer to Figure 4 In this embodiment, limit rings 112 are provided on both sides of the flat portion 111. The limit rings 112 protrude from the outer peripheral surface of the rotating shaft 11. The limit rings 112 are used to limit the axial position of the rotating shaft 11 after the rotating shaft 11 is installed in the clamping hole 22, thereby improving the overall stability. At the same time, the limit rings 112 can also provide a reference when the rotating shaft 11 and the mounting bracket 2 are assembled, which facilitates finding the installation position and makes the assembly process easier.

[0041] Please refer to Figure 5 In this embodiment, two fixing holes 24 are provided on the mounting bracket 2. The two fixing holes 24 are located on both sides of the top of the mounting bracket 2. An avoidance groove 25 is opened at the bottom of the mounting bracket 2 at the position of the fixing holes 24. The fixing holes 24 penetrate to the bottom of the avoidance groove 25. The fixing holes 24 are used for fasteners such as screws to connect the mounting bracket 2 to the base of the head-up display. The head-up display is provided with a screw column, and a threaded hole is opened at the top of the screw column. The mounting bracket 2 is connected and fixed to the screw column by screws. The avoidance groove 25 is located at a position opposite to the fixing holes 24 and is used to make way for the screw column.

[0042] Please refer to Figure 2 and Figure 5 In this embodiment, the elastic sheet 3 includes a fixing portion 31 and a pressing portion 32. The fixing portion 31 is provided with a hole that matches the fixing hole 24. The elastic sheet 3 and the mounting bracket 2 are fixed to the head-up display base together by screws. The connection between the fixing portion 31 and the pressing portion 32 is bent downward so that the pressing portion 32 is located in the mounting groove 21, ensuring that the pressing portion 32 can press the rotating shaft 11 in the mounting groove 21 under the action of elastic force, thereby eliminating the matching clearance of the shaft hole, effectively improving the stability of the rotating shaft 11 and the curved mirror 1, and preventing the head-up display from generating abnormal noise when passing through bumpy roads.

[0043] Please refer to Figure 2and Figure 5 In this embodiment, a positioning column 26 is further provided on the mounting bracket 2, and a positioning hole is provided on the fixing portion 31. When the elastic sheet 3 is installed with the mounting bracket 2, it is positioned by the positioning column 26 protruding from the mounting bracket 2. After the elastic sheet 3 is installed, the positioning column 26 is inserted into the positioning hole.

[0044] Please refer to Figure 2 and Figure 5 In this embodiment, a protruding limiting protrusion 321 is provided at one end of the pressing portion 32, and a limiting card slot 27 that cooperates with the limiting protrusion 321 is provided on the side wall of the installation groove 21. The limiting protrusion 321 is inserted into the limiting card slot 27, and the elastic piece 3 is limited by the limiting card slot 27 and the positioning column 26 to ensure that the elastic piece 3 is firmly installed.

[0045] Please refer to Figure 1 and Figure 3 In this embodiment, an arc-shaped rack 12 is provided at the bottom of the curved mirror 1. The arc-shaped rack 12 is connected to the output end of a driving device (not shown in the figure). By driving the arc-shaped rack 12 to move, the curved mirror 1 is driven to rotate.

[0046] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0047] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0048] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A head-up display mounting structure, comprising a curved mirror, with rotating shafts provided on both sides of the curved mirror, characterized in that: It also includes mounting brackets arranged on both sides of the curved mirror, the mounting brackets including a mounting groove, a clamping hole passing through the side wall of the mounting groove, and an elastic sheet installed at the opening of the mounting groove, a truncation groove is provided at the top of the clamping hole, the truncation groove is connected to the clamping hole, and the outer peripheral surface of the rotating shaft is provided with two planar portions, and the planar portions are symmetrical about the axis of the rotating shaft.

2. The head-up display mounting structure according to claim 1, characterized in that: Limiting rings are provided on both sides of the plane portion, and the limiting rings protrude from the outer peripheral surface of the rotating shaft.

3. The head-up display mounting structure according to claim 2, characterized in that: The mounting bracket is provided with a plurality of fixing holes, the mounting bracket is provided with an avoidance groove, and the fixing holes penetrate to the bottom of the avoidance groove.

4. The head-up display mounting structure according to claim 3, characterized in that: The elastic sheet includes a fixing portion and a pressing portion. The pressing portion is located in the mounting groove. The fixing portion is provided with a hole that matches the fixing hole.

5. The head-up display mounting structure according to claim 4, characterized in that: The mounting bracket is further provided with a positioning column, and the fixing portion is provided with a positioning hole.

6. The head-up display mounting structure according to claim 4, characterized in that: One end of the pressing portion is provided with a protruding limiting convex portion, and the side wall of the mounting groove is provided with a limiting clamping groove matched with the limiting convex portion.

7. The head-up display mounting structure according to claim 1, wherein: An arc-shaped rack is provided at the bottom of the curved mirror.

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