HUD liquid crystal display module capable of preventing abnormal sound from loosening

Abstract

The utility model discloses an HUD liquid crystal display module capable of preventing abnormal sound from loosening, which comprises an upper iron frame support, a lower iron frame support and a display module, a cavity is formed between the upper iron frame support and the lower iron frame support, the display module is fixedly connected in the cavity, a first folding edge is arranged on the periphery of the upper iron frame support, and a second folding edge is arranged on the periphery of the lower iron frame support. A first folding edge is arranged on the periphery of the upper iron frame support, a second folding edge is arranged on the periphery of the lower iron frame support, a plurality of protruding points are arranged on the outer side of the first folding edge, when the upper iron frame support and the lower iron frame support are mutually clamped and assembled, the protruding points abut against the inner side of the second folding edge, and the height of the protruding points is larger than an assembling gap between the first folding edge and the second folding edge. And the interference fit between the upper iron frame bracket and the lower iron frame bracket is realized. According to the HUD display screen, the plurality of convex points are arranged on the first folded edge on the periphery of the upper iron frame support, and the height of the convex points is larger than the assembling gap, so that interference fit between the upper iron frame and the lower iron frame is achieved, and the problem that the HUD display screen sounds in a vibration environment is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, in particular to a HUD liquid crystal display module for preventing abnormal noise and loosening. Background Art

[0002] The HUD display screen, that is, the head-up display system, is an advanced driving assistance device. It directly displays important driving information such as speed and navigation on the windshield in front of the driver's line of sight, enabling the driver to obtain this information without having to lower or turn their head, thereby improving driving safety. The HUD display screen realizes its display effect by irradiating a high-brightness backlight on the liquid crystal display module and then in a projection manner. Its imaging process involves multiple components that work together to form a virtual image and introduce the image light into the human eye, enabling the driver to visually perceive the position of the information.

[0003] However, the existing HUD liquid crystal display module is assembled by snapping several iron frames through bayonets around the perimeter. Generally, the bayonet assembly is a clearance fit for easy assembly and disassembly. The reliability requirements for in-vehicle display screens are very high. Vehicles need to adapt to driving not only on flat roads but also on rough roads. Due to the existence of the clearance around the bayonet assembly, the display screen will make abnormal noises and become loose during vibration. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a HUD liquid crystal display module for preventing abnormal noise and loosening in view of the defects of the prior art.

[0005] To solve the above technical problems, the technical solution provided by the utility model is as follows:

[0006] A HUD liquid crystal display module for preventing abnormal noise and loosening includes an upper iron frame bracket, a lower iron frame bracket, and a display module. The upper iron frame bracket is snap-connected to the lower iron frame bracket, and a cavity is formed between the upper iron frame bracket and the lower iron frame bracket. The display module is fixedly connected in the cavity. It is characterized in that: a first folded edge is provided around the upper iron frame bracket, and a second folded edge is provided around the lower iron frame bracket. A plurality of convex points are provided on the outer side of the first folded edge. When the upper iron frame bracket and the lower iron frame bracket are snap-connected and assembled, the convex points abut against the inner side of the second folded edge, and the height of the convex points is greater than the assembly clearance between the first folded edge and the second folded edge, realizing an interference fit between the upper iron frame bracket and the lower iron frame bracket.

[0007] Further, the assembly clearance between the first folded edge and the second folded edge is 0.1 mm, and the height of the convex points is 0.12 mm.

[0008] Further, the convex points are circular convex points with a diameter of 1.2 mm.

[0009] Further, the end of the first folded edge abuts against the inner side of the lower iron frame bracket.

[0010] Further, a buckle is provided on the first folded edge, and a clamping groove is provided on the second folded edge. The upper iron frame bracket and the lower iron frame bracket are assembled and connected to each other through the cooperation of the buckle and the clamping groove.

[0011] Further, there is an assembly gap of 0.1 mm between the buckle and the clamping groove.

[0012] Further, the display module is fixedly connected to the lower iron frame bracket through double-sided adhesive foam.

[0013] Further, an FPC board is further included, and the FPC board is connected to the lower end of the display module.

[0014] Further, a reinforcing steel sheet is provided on the surface of the FPC board.

[0015] Further, four bump points are provided on the upper side, left side, and right side of the first folded edge, and two bump points are provided on the lower side.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The present utility model proposes to set a number of bump points on the first folded edge around the upper iron frame bracket, and the height of the bump points is greater than the assembly gap, so as to realize the interference fit between the upper and lower iron frames, and solve the problem of rattling of the HUD display screen in a vibration environment.

[0018] 2. The end of the first folded edge abuts against the inner side of the lower iron frame bracket, further preventing the problem of abnormal noise caused by the upper iron frame folded edge hitting the inner side of the lower iron frame during vibration in a harsh vibration environment.

[0019] 3. The clearance fit is adopted between the buckle and the clamping groove, which solves the problem that the upper iron frame bracket and the lower iron frame bracket cannot be buckled due to manufacturing tolerances. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic side structure diagram of an embodiment of the present utility model;

[0021] Figure 2 is Figure 1 a partial enlarged view of A in

[0022] Figure 3 is a schematic front structure diagram of an embodiment of the present utility model;

[0023] Figure 4 is a schematic side structure diagram of the upper iron frame bracket;

[0024] Wherein: 1 - upper iron frame bracket, 2 - lower iron frame bracket, 3 - display module, 4 - first folded edge, 5 - second folded edge, 6 - bump, 7 - buckle, 8 - card slot, 9 - double-sided adhesive foam, 10 - FPC board, 11 - reinforcing steel sheet. Detailed implementation manner

[0025] To deepen the understanding of the present utility model, the following will further elaborate on the present utility model in conjunction with the accompanying drawings. This embodiment is only used to explain the present utility model and does not constitute a limitation to the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically and clearly defined.

[0028] In the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", "setting", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can also be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Figures 1-4Shows a specific embodiment of an HUD liquid crystal display module for preventing abnormal noise and loosening, including an upper iron frame bracket 1, a lower iron frame bracket 2, and a display module 3. The upper iron frame bracket 1 is snap-fitted on the lower iron frame bracket 2. A cavity is formed between the upper iron frame bracket 1 and the lower iron frame bracket 2. The display module 3 is fixedly connected inside the cavity. A first folded edge 4 is provided around the upper iron frame bracket 1, and a second folded edge 5 is provided around the lower iron frame bracket 2. A number of convex points 6 are provided on the outer side of the first folded edge 4. When the upper iron frame bracket 1 and the lower iron frame bracket 2 are snap-fitted and assembled, the convex points 6 abut against the inner side of the second folded edge 5, and the height of the convex points 6 is greater than the assembly gap between the first folded edge 4 and the second folded edge 5, realizing an interference fit between the upper iron frame bracket 1 and the lower iron frame bracket 2.

[0030] Preferably, the convex points 6 are circular convex points with a diameter of 1.2 mm. The assembly gap between the first folded edge 4 and the second folded edge 5 is 0.1 mm, and the height of the convex points 6 is 0.12 mm.

[0031] By providing a number of convex points 6 on the first folded edge 4 around the upper iron frame bracket 1 and the height of the convex points 6 being greater than the assembly gap, an interference fit between the upper iron frame bracket 1 and the lower iron frame bracket 2 is realized, solving the problem of rattling of the HUD display screen in a vibrating environment.

[0032] As Figure 2 shown, the end of the first folded edge 4 abuts against the inner side of the lower iron frame bracket 2. Further preventing the problem of abnormal noise when the first folded edge 4 touches the inner side of the lower iron frame bracket 2 during vibration in a harsh vibration environment.

[0033] A buckle 7 is provided on the first folded edge 4, and a slot 8 is provided on the second folded edge 5. The upper iron frame bracket 1 and the lower iron frame bracket 2 are assembled and connected to each other through the cooperation of the buckle 7 and the slot 8. There is an assembly gap of 0.1 mm between the buckle 7 and the slot 8. A clearance fit is adopted between the buckle 7 and the slot 8, solving the problem of the upper iron frame bracket 1 and the lower iron frame bracket 2 not being able to be buckled due to manufacturing tolerances.

[0034] As Figure 1 、 2 shown, the display module 3 is fixedly connected to the lower iron frame bracket 2 through a double-sided adhesive foam 9.

[0035] As Figure 1 、 3 shown, it further includes an FPC board 10. The FPC board 10 is connected to the lower end of the display module 3, and a reinforcing steel sheet 11 is provided on the surface of the FPC board 10.

[0036] Preferably, four convex points 6 are provided on the upper side, left side, and right side of the first folded edge 4, and two convex points 6 are provided on the lower side, avoiding the wire outlet position of the FPC board 10.

[0037] The above specific implementation manners are only used to illustrate the technical concept and structural features of the present utility model, aiming to enable those skilled in the art to implement it accordingly. However, the above content does not limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit and essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An HUD liquid crystal display module for preventing abnormal noise and loosening, comprising an upper iron frame bracket (1), a lower iron frame bracket (2), and a display module (3). The upper iron frame bracket (1) is snap-connected to the lower iron frame bracket (2), and a cavity is formed between the upper iron frame bracket (1) and the lower iron frame bracket (2). The display module (3) is fixedly connected in the cavity, and is characterized in that: The periphery of the upper iron frame bracket (1) is provided with a first folding edge (4), and the periphery of the lower iron frame bracket (2) is provided with a second folding edge (5). A number of convex points (6) are arranged on the outer side of the first folding edge (4). When the upper iron frame bracket (1) and the lower iron frame bracket (2) are mutually clamped and assembled, the convex points (6) abut against the inner side of the second folding edge (5), and the height of the convex points (6) is greater than the assembly gap between the first folding edge (4) and the second folding edge (5), so as to realize an interference fit between the upper iron frame bracket (1) and the lower iron frame bracket (2).

2. The HUD liquid crystal display module for preventing abnormal noise and loosening according to claim 1, characterized in that: The assembly gap between the first folding edge (4) and the second folding edge (5) is 0.1 mm, and the height of the convex points (6) is 0.12 mm.

3. The HUD liquid crystal display module for preventing abnormal noise and loosening according to claim 2, wherein: The convex points (6) are circular convex points with a diameter of 1.2 mm.

4. The HUD liquid crystal display module for preventing abnormal noise and loosening according to claim 1, wherein: The end of the first folding edge (4) abuts against the inner side of the lower iron frame bracket (2).

5. The HUD liquid crystal display module for preventing abnormal noise and loosening according to claim 1, wherein: A buckle (7) is arranged on the first folding edge (4), and a clamping groove (8) is arranged on the second folding edge (5). The upper iron frame bracket (1) and the lower iron frame bracket (2) are mutually assembled and connected through the cooperation of the buckle (7) and the clamping groove (8).

6. The HUD liquid crystal display module for preventing abnormal noise and loosening according to claim 5, wherein: There is an assembly gap of 0.1 mm between the buckle (7) and the clamping groove (8).

7. The HUD liquid crystal display module for preventing abnormal noise and loosening according to claim 1, wherein: The display module (3) is fixedly connected to the lower iron frame bracket (2) through a double-sided adhesive foam (9).

8. The HUD liquid crystal display module for preventing abnormal noise and loosening according to claim 1, wherein: It further includes an FPC board (10), and the FPC board (10) is connected to the lower end of the display module (3).

9. The HUD liquid crystal display module for preventing abnormal noise and loosening according to claim 8, wherein: A reinforcing steel sheet (11) is arranged on the surface of the FPC board (10).

10. The HUD liquid crystal display module for preventing abnormal noise and loosening according to claim 8, wherein: Four convex points (6) are arranged on the upper side, left side and right side of the first folding edge (4), and two convex points (6) are arranged on the lower side.

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