Thin display screen PCB mounting and fixing structure

Abstract

The utility model discloses a thin display screen PCB installing and fixing structure which comprises a display screen assembly, a front shell, a PCB, a rear shell and a support, the display screen assembly is installed and attached to the front shell, the PCB is clamped to the front shell through a buckle, the rear shell is installed on the front shell, and the support is locked and fastened to a BOSS column of the front shell through a screw. According to the thin display screen PCB mounting and fixing structure, the height of the PCB fixing structure can be reduced, and the thin display screen PCB mounting and fixing structure can be suitable for the design of a thinner display screen assembly structure. Under the condition that the requirement for the appearance thickness is met, the internal thickness size space is greatly utilized, the PCB is installed and fixed without screws, the PCB is pre-fixed through the buckles, and then the corresponding supporting structure is designed through the external support to press the PCB, so that the fixing reliability of the PCB is guaranteed, the assembly procedures are reduced, the cost of the screws and the like is saved, and the production efficiency is improved. And the requirement of thinner thickness of the screen assembly can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display screen PCB mounting, in particular to a thin display screen PCB mounting and fixing structure. BACKGROUND

[0002] Due to the current development trend of display appearance, whether it is for home use or for vehicle use, the screen assembly requires more functions, larger size and thinner thickness. In the limited space with thinner thickness and size requirements, the internal PCB has more devices. Higher requirements are put forward for PCB fixing and mounting. In the past, screws are usually used for fixing, but the screws need to have a certain locking depth with the front shell BOSS column, thereby consuming a certain internal thickness space, as shown in Figure 1 However, when the thickness of some models has certain requirements and is relatively thin, there is not enough space for the internal PCB to reserve screw BOSS column fixing, or the height of the electronic components on the PCB is limited, which greatly affects the functional design of the screen assembly.

[0003] Most of the existing display screen PCBs are mounted and fixed by screws and the front shell or the shell. The screw locking requires a BOSS column, and the BOSS column needs a certain height, at least about 5 mm, to provide the depth requirement of the screw locking, so that the fixed position of the PCB is higher, and the internal space thickness is thicker. For the current requirement of thinner display screen assembly, such structure often cannot meet the appearance thickness requirement. Therefore, the display screen PCB mounting and fixing must consider reliability and meet the requirement of thinner appearance thickness. SUMMARY

[0004] In order to solve one of the above technical defects, a thin display screen PCB mounting and fixing structure is provided in the embodiments of the present application.

[0005] According to a first aspect of the embodiments of the present application, a thin display screen PCB mounting and fixing structure is provided, which comprises a display screen assembly, a front shell, a PCB, a rear shell and a bracket. The display screen assembly is mounted and attached to the front shell. The PCB is clamped to the front shell by a buckle. The rear shell is mounted on the front shell. The bracket is locked and fastened with the BOSS column of the front shell by screws.

[0006] Further, the display screen assembly is mounted and attached to the front shell by adhesive.

[0007] Further, the front shell is provided with a plurality of positioning columns, and the PCB is positioned and fixed with the buckle of the front shell through the positioning columns.

[0008] Further, the front shell is further provided with a limiting rib.

[0009] Further, the bracket is provided with a plurality of supporting columns.

[0010] The thin display screen PCB mounting and fixing structure provided in the embodiments of the present application can reduce the height of the PCB fixing structure, and can be applied to thinner display screen assembly structure design. In the case of ensuring the appearance thickness requirement, the internal thickness dimension space is greatly utilized, the PCB is not fixed by using screws, the PCB is pre-fixed by buckling, and then the corresponding support structure of the external support is designed to press the PCB, so as to ensure the reliability of the PCB fixing, reduce the assembly process and save the cost of screws, and meet the requirement of thinner thickness of the screen assembly. BRIEF DESCRIPTION OF DRAWINGS

[0011] The accompanying drawings, which are included to provide a further understanding of the present application, form a part of the present application and illustrate the illustrative embodiments of the present application and together with the description serve to explain the present application. In the drawings:

[0012] Figure 1 FIG. 1 is a schematic diagram of the mounting structure of the display screen PCB in the prior art.

[0013] Figure 2 FIG. 2 is a schematic diagram of the overall explosion structure of the thin display screen PCB mounting and fixing structure of the present application.

[0014] Figure 3 FIG. 3 is a schematic diagram of the overall explosion structure of the display screen assembly, the front shell and the PCB in the thin display screen PCB mounting and fixing structure of the present application.

[0015] Figure 4 FIG. 4 is a schematic diagram of the assembly of the display screen assembly and the front shell in the thin display screen PCB mounting and fixing structure of the present application.

[0016] Figure 5 FIG. 5 is a schematic diagram of the assembly structure of the display screen assembly, the front shell and the PCB in the thin display screen PCB mounting and fixing structure of the present application.

[0017] Figure 6 FIG. 6 is a schematic diagram of the cross-sectional structure of the display screen assembly, the front shell and the PCB in the thin display screen PCB mounting and fixing structure of the present application.

[0018] Figure 7 FIG. 7 is a schematic diagram of the overall cross-sectional structure of the thin display screen PCB mounting and fixing structure of the present application.

[0019] Figure 8 FIG. 8 is a schematic diagram of the overall assembly structure of the thin display screen PCB mounting and fixing structure of the present application.

[0020] 1. Display screen assembly; 2. Front shell; 3. PCB; 4. Rear shell; 5. Bracket; 6. Clip; 7. Positioning post; 8. Limiting rib; 9. Support post; 10. BOSS post; 11. Screw. Detailed Implementation

[0021] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0022] This application provides a thin display PCB mounting and fixing structure, including a display assembly 1, a front shell 2, a PCB 3, a rear shell 4, and a bracket 5. The display assembly 1 is mounted and attached to the front shell 2, the PCB 3 is snapped onto the front shell 2 by a buckle 6, the rear shell 4 is mounted on the front shell 2, and the bracket 5 is fastened to the BOSS post of the front shell by screws.

[0023] like Figure 3 As shown, the screen assembly typically consists of a display component 1, a front housing 2, and a PCB 3, as follows. Figure 2 As shown, first install the display assembly 1 onto the front shell 2, which can be done normally by using adhesive or other methods. Then install the PCB 3 onto the front shell 2, and accurately position it using the positioning posts 7 designed on the front shell 2.

[0024] like Figure 6 As shown, the PCB 3 is first snapped into place and pre-fixed using the four-sided clips 6. Since no BOSS pillar locking is used, the distance between the PCB 3 and the display assembly 1 is only about 2mm. After the PCB 3 is snapped into place, the front shell 2 has certain support at the bottom of the PCB 3 and certain limiting ribs 8 are reserved around the perimeter to ensure that there is no risk of rotation after the PCB is snapped into place.

[0025] like Figure 7As shown, the back cover 4 is then installed, primarily for aesthetic purposes. Finally, the bracket 5 is installed. The bracket 5 not only serves a decorative function but also allows for connection between the screen assembly and other devices through its structural design. It also provides some shielding for the PCB. The bracket 5 is directly secured to the BOSS pillars designed in the front cover 2 using screws. The bracket 5 also incorporates a structure for pressing against the PCB 3, typically support pillars 9. These support pillars are designed to be 0.1mm or larger to avoid interference with the PCB 3, ensuring that after the bracket 5 is installed, the support pillars and the front cover 2 can press the PCB 3 firmly in place, thus guaranteeing a secure fixation. This method eliminates the need for direct screw fixing to the BOSS pillars in the front cover 2, reducing the installation height of the PCB 3 within the display assembly and saving internal space. This reduces the overall thickness of the screen assembly and saves on the screws and labor costs associated with previous installation methods.

[0026] The working principle of this application is as follows: the PCB is pre-fixed by the snap-fit ​​design of the front shell, and then the PCB is pressed down by the support and bracket structure designed at the bottom of the front shell. The front shell is also designed with certain limits to ensure that the PCB does not rotate or rotates only slightly during vibration. This ensures that the PCB is reliably fixed in place.

[0027] In this application, depending on the appearance and functional requirements, the bracket can be eliminated, or the bracket and the back cover can be made into one piece. The fixing structure that presses the PCB inside the bracket can be directly designed through the back cover. This saves the number of parts and achieves the same effect.

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0032] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A thinner display screen PCB mounting and fixing structure characterized by, It comprises a display screen assembly, a front shell, a PCB, a rear shell and a support, the display screen assembly is installed on the front shell, the PCB is buckled on the front shell, the rear shell is installed on the front shell, and the support is locked and fastened with the front shell through a screw.

2. The thinner display screen PCB mounting and fixing structure according to claim 1, characterized in that, The display screen assembly is installed on the front shell through adhesive.

3. The thinner display screen PCB mounting and fixing structure according to claim 2, characterized in that, The front shell is provided with a plurality of positioning columns, and the PCB is positioned and fixed with the buckle of the front shell through the positioning columns.

4. The thinner display screen PCB mounting and fixing structure according to claim 3, characterized in that, The front shell is also provided with a limiting rib.

5. The thinner display screen PCB mounting and fixing structure according to claim 1 or 4, characterized in that, The support is provided with a plurality of supporting columns.

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