CN222602886U - Shielding cover and display device - Google Patents

Abstract

The utility model relates to a shielding cover, which comprises a box body structure with an opening at one end, wherein a limiting structure and a supporting structure for fixing a circuit board are arranged in the box body structure, the limiting structure comprises elastic pieces which are at least arranged on two opposite inner side walls of the box body structure, the elastic pieces sequentially comprise fixing parts, guide parts and limiting parts along the direction away from the bottom of the box body structure, the limiting parts are perpendicular to the corresponding inner side walls, the guide parts and the limiting parts are obliquely arranged, one end of each guide part is connected with one end of each limiting part away from the corresponding inner side wall, the other end of each guide part is close to the corresponding inner side wall, the supporting structure comprises a supporting plate which is at least arranged on the two opposite inner side walls of the box body structure, and the distance between the supporting surface of the supporting plate and the bottom of the box body structure is smaller than the distance between the limiting parts and the bottom of the box body structure, so that the circuit board is fixed between the supporting plate and the limiting parts. The utility model also relates to a display device.

Description

Shielding cover and display device

Technical Field

The utility model relates to the technical field of manufacturing of display products, in particular to a shielding cover and a display device.

Background

At present, the main board and the power panel are fixed in the shielding cover by screws, and the upper surface of the shielding cover is supported by stud switching. But this approach has the following drawbacks:

The rivets of each project are different in length and size, more in rivet types, easy to mix, longer in rivet length, easy to incline, low in position accuracy, not suitable for automatic operation, more in parts, time-consuming in assembly and higher in parts and assembly cost.

Disclosure of utility model

In order to solve the technical problems, the utility model provides a shielding cover and a display device, which solve the problems of low efficiency and the like of assembly between the shielding cover and a circuit board in a screw fixing mode.

In order to achieve the purpose, the technical scheme adopted by the embodiment of the utility model is that the shielding cover comprises a box body structure with an opening at one end, wherein a limit structure and a support structure for fixing a circuit board are arranged in the box body structure;

The limiting structure comprises elastic pieces which are at least arranged on two opposite inner side walls of the box body structure, the elastic pieces sequentially comprise fixing parts, guiding parts and limiting parts along the direction away from the bottom of the box body structure, the limiting parts are perpendicular to the corresponding inner side walls, the guiding parts and the limiting parts are obliquely arranged, one ends of the guiding parts are connected with one ends of the limiting parts away from the corresponding inner side walls, and the other ends of the guiding parts are close to the corresponding inner side walls;

The supporting structure comprises supporting plates which are at least arranged on two opposite inner side walls of the box body structure, and the distance between the supporting surface of the supporting plate and the bottom of the box body structure is smaller than the distance between the limiting part and the bottom of the box body structure, so that the circuit board is fixed between the supporting plate and the limiting part.

Optionally, the fixing portion is parallel to the corresponding inner sidewall, and one end of the fixing portion, which is close to the bottom of the box structure, is fixed on the corresponding inner sidewall.

Optionally, the fixed part, spacing portion and guiding part are integrated into one piece structure, spacing portion by the fixed part is kept away from the one end of the bottom of box body structure is to keeping away from corresponding the direction bending of inside wall forms, guiding part by spacing portion is kept away from the one end reverse bending of fixed part forms.

Optionally, a first groove is formed in the inner side wall, a part of the first groove is formed by recessing the inner side wall in a direction away from the center of the box body structure, and the elastic piece is arranged in the first groove.

Optionally, a portion of the first groove is recessed in a direction away from a center of the box body structure to form a second groove, and orthographic projections of the limiting portion and the guiding portion on the corresponding inner side walls are located in the second groove.

Optionally, the backup pad is U-shaped structure, the opening of backup pad is towards corresponding the inside wall sets up.

Optionally, the backup pad is kept away from the protruding arch that is equipped with in side of the bottom of box body structure to fix a position the circuit board.

Optionally, the support plate is formed by a portion of the inner sidewall being recessed in a direction toward a center of the box structure.

The embodiment of the utility model also provides a display device which comprises a display module, a shell and the shielding cover, wherein the shielding cover is positioned between the display module and the shell.

The circuit board assembling device has the beneficial effects that the supporting structure and the limiting structure are matched to fix the circuit board between the supporting structure and the limiting structure, when the circuit board is assembled, the circuit board is inserted into the box body structure from the opening of the box body structure to the direction close to the bottom of the box body structure, and the guide part is configured to be capable of being deformed under force, so that the circuit board moves between the limiting part and the supporting structure, compared with a screw locking mode, assembly parts are reduced, and the assembly efficiency is improved.

Drawings

Fig. 1 shows a schematic view of a shield in the related art;

FIG. 2 shows a partial schematic view of a shield in the related art;

FIG. 3 is a schematic diagram showing an assembled state of a shield case and a circuit board in the related art;

FIG. 4 shows a schematic view of a shield in an embodiment of the utility model;

FIG. 5 shows a partial schematic view of a shield in an embodiment of the utility model;

FIG. 6 shows a partial schematic view of a shield in an embodiment of the utility model;

FIG. 7 shows a partial schematic view of a shield in an embodiment of the utility model;

FIG. 8 shows a partial schematic view of a shield in an embodiment of the utility model;

FIG. 9 shows a partial schematic view of a shield in an embodiment of the utility model;

fig. 10 is a schematic view showing an assembled state of the shield case and the circuit board in the embodiment of the utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Fig. 1 is a schematic view of a related art shield, fig. 2 is a partial schematic view of a related art shield, and fig. 3 is a schematic view of an assembled pile of a related art shield and a circuit board.

In the related art, the shielding case 1 and the circuit board 100 are connected by means of screws 12 or rivets, the stud 11 is arranged on the shielding case 1 to play a role of switching support, but the types of the rivets are more, the lengths and the sizes of the rivets are different, the rivets are easy to mix, the rivets are longer, the rivets are easy to incline, the position accuracy is not high, the assembly is not suitable for automatic operation, the number of parts is relatively large, the assembly is relatively time-consuming, and the parts and the assembly cost are relatively high.

Referring to fig. 4 to 10, in order to solve the above problems, an embodiment of the present utility model provides a shielding case, which includes a case structure 2 having an opening at one end, wherein a limiting structure 21 and a supporting structure 22 for fixing a circuit board 100 are disposed in the case structure 2;

The limiting structure 21 comprises at least two elastic sheets arranged on two opposite inner side walls 201 of the box body structure 2, the elastic sheets sequentially comprise a fixing part 211, a guiding part 213 and a limiting part 212 along the direction far away from the bottom 203 of the box body structure 2, the limiting part 212 is perpendicular to the corresponding inner side walls 201, the guiding part 213 and the limiting part 212 are obliquely arranged, one end of the guiding part 213 is connected with one end of the limiting part 212 far away from the corresponding inner side wall 201, and the other end of the guiding part 213 is close to the corresponding inner side wall 201;

The supporting structure 22 includes supporting plates disposed on at least two opposite inner side walls 201 of the box structure 2, and a distance between a supporting surface of the supporting plates and the bottom 203 of the box structure 2 is smaller than a distance between the limiting portion 212 and the bottom 203 of the box structure 2, so as to fix the circuit board 100 between the supporting plates and the limiting portion 212.

Along the direction far away from the bottom 203 of the box structure 2, the elastic sheet sequentially comprises a fixing portion 211, a guiding portion 213 and a limiting portion 212, that is, along the direction far away from the bottom 203 of the box structure 2, the elastic sheet comprises a fixed end and a free end, the fixed end is provided with the fixing portion 211, the free end is provided with the guiding portion 213, the guiding portion 213 is inclined to the limiting portion 212, and the guiding portion 213 is inclined to the corresponding inner side wall 201, when the circuit board 100 is assembled, the circuit board 100 moves from the direction from the opening of the box structure 2 to the bottom 203 of the box structure 2 to the inside of the box structure 2, the guiding portion 213 is located on the moving path of the circuit board 100, so that the guiding portion 213 is deformed by force or the guiding portion 213 is moved by force to the direction near the corresponding inner side wall 201, so that the circuit board 100 is smoothly moved to the direction near the box bottom 203, and is moved between the limiting portion 212 and the supporting plate, and the guiding portion 213 is automatically blocked by the blocking portion 213 and the supporting plate 100 to be matched with the limiting portion 212. That is, compared with the shielding case in the related art of fig. 1-3, the shielding case provided in this embodiment realizes the fixation of the circuit board 100 through the structure of the shielding case itself, no additional assembly parts are required, the assembly is simple and efficient, and the assembly cost is reduced.

It should be noted that the number of the elastic pieces on each inner sidewall 201 may be set according to actual needs, and is not limited herein.

The spring may be a metal spring, for example.

For example, the number and the setting positions of the limiting structures 21 and the supporting structures 22 may be set according to actual needs, in fig. 4 and 10, the box structure is a rectangular structure, 4 limiting structures 21 are disposed on two first inner side walls with a longer length, 2 supporting structures 22 are disposed on each first inner side wall (two circuit boards 100 are disposed in the shielding case in fig. 4 and 10, the supporting structures 22 on the first inner side wall correspond to supporting corresponding circuit boards), 2 supporting structures 22 are disposed on two second inner side walls with a shorter length, two ends of each second inner side wall in the extending direction thereof are provided with the supporting structures 22, two ends of each first inner side wall in the extending direction thereof are respectively provided with the limiting structures 21, the limiting structures 21 on the first inner side wall and the supporting structures 22 are spaced and adjacently disposed (the distance between the limiting structures and the supporting structures is smaller than the preset distance between the supporting structures 21) so as to improve the stability of the supporting structures 22 and the circuit boards 100.

In an exemplary embodiment, the fixing portion 211 is parallel to the corresponding inner sidewall 201, and an end of the fixing portion 211 near the bottom 203 of the case structure 2 is fixed to the corresponding inner sidewall 201.

The fixing portion 211 may fix the elastic sheet on the corresponding inner sidewall 201 by means of screw locking, and one end of the fixing portion 211 near the bottom 203 of the box structure 2 is fixed on the corresponding inner sidewall 201, so as to provide a larger space for the force deformation of the guiding portion 213 of the elastic sheet, which is beneficial to the assembly of the circuit board 100.

In an exemplary embodiment, the fixing portion 211, the limiting portion 212, and the guiding portion 213 are integrally formed, that is, the elastic sheet is integrally formed, the limiting portion 212 is formed by bending an end of the fixing portion 211 away from the bottom 203 of the box structure 2 in a direction away from the corresponding inner sidewall 201, the guiding portion 213 is formed by reversely bending an end of the limiting portion 212 away from the fixing portion 211, that is, an end of the fixing portion 211 extends outwards and is bent to form the limiting portion 212, and extends outwards again and is reversely bent to form the guiding portion 213.

In an exemplary embodiment, a first groove 2001 is formed on the inner sidewall 201, the first groove 2001 is formed by recessing a portion of the inner sidewall 201 away from the center of the case structure 2, and the elastic sheet is disposed in the first groove 2001.

The first groove 2001 is provided, so that after the shielding cover is assembled with the circuit board 100, a shielding chamber is enclosed between the shielding cover and the circuit board 100, so that an external electric field is effectively blocked, functional elements in the shielding chamber can be protected, and the safety of components on the circuit board 100 is protected.

In an exemplary embodiment, a portion of the first groove 2001 is recessed away from the center of the case structure 2 to form a second groove 2002, and an orthographic projection of the limiting portion 212 and the guiding portion 213 on the corresponding inner sidewall 201 is located in the second groove 2002.

The second groove 2002 is configured to provide space for the forced deformation of the guide 213.

In an exemplary embodiment, the support plate has a U-shaped structure, and the opening of the support plate is disposed toward the corresponding inner sidewall 201.

The side of the support plate remote from the box structure 2 forms a support surface for supporting the circuit board 100.

In the exemplary embodiment, the support plate is formed by a portion of the inner sidewall 201 being recessed in a direction toward the center of the case structure 2.

For the convenience of molding, the support plate is formed by providing two spaced and flat openings in the inner sidewall 201, and then stretching the region between the two openings in a direction approaching the center of the inside of the case structure 2.

By adopting the scheme, the supporting plate is formed by utilizing the stamping expansion characteristic of the shielding cover, so that the assembly parts are reduced.

In an exemplary embodiment, the side of the support plate remote from the bottom 203 of the case structure 2 is provided with a protrusion 23 protruding upwards to position the circuit board 100.

Grooves or through slots can be formed in the circuit board 100 for the protrusions 23 to be inserted, so that positioning of the circuit board 100 is achieved, and connection stability between the shielding case and the circuit board 100 is improved.

Illustratively, the projection 23 is integrally formed with the support plate, i.e., is formed by recessing a portion of the inner sidewall 201.

The number of circuit boards 100 that the shield can be assembled to may be set according to actual needs, and the shield is not limited thereto, and one circuit board 100 may be assembled to the shield, or a plurality of circuit boards 100 may be assembled to the shield.

In summary, the shielding case provided in this embodiment forms the buckle by utilizing the elastic sheet, and realizes positioning and supporting by applying the stamping extension characteristic of the shielding case, thereby meeting the part standardization, meeting the requirement of canceling the screw fixing plate to provide convenience for the whole machine automation, canceling the stud and screw of the shielding case, meeting the requirements of few parts and few assembly man-hours, and achieving the effects of reducing the cost and improving the overall product competitiveness of the display.

The embodiment of the utility model also provides a display device which comprises a display module, a shell and the shielding cover, wherein the shielding cover is positioned between the display module and the shell.

For example, the circuit board 100 assembled with the shield can may be a motherboard and/or a power board.

The main board is positioned on the backlight side of the display module, and is connected with the display panel of the display module to transmit signals for the display panel.

Illustratively, the display module includes a back plate, a flange 202 is disposed around the opening of the shielding case, and a mounting hole for connecting with the back plate is disposed on the flange 202.

The display device can be any product or component with display function such as a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet personal computer and the like, wherein the display device also comprises a flexible circuit board 100, a printed circuit board 100 and a backboard.

The following points need to be described:

(1) The drawings of the embodiments of the present disclosure relate only to the structures related to the embodiments of the present disclosure, and other structures may refer to the general design.

(2) In the drawings for describing embodiments of the present disclosure, the thickness of layers or regions is exaggerated or reduced for clarity, i.e., the drawings are not drawn to actual scale. It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present.

(3) The embodiments of the present disclosure and features in the embodiments may be combined with each other to arrive at a new embodiment without conflict.

It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present utility model, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the utility model, and are also considered to be within the scope of the utility model.

Claims (9)

1. The shielding cover is characterized by comprising a box body structure with an opening at one end, wherein a limiting structure and a supporting structure for fixing a circuit board are arranged in the box body structure;

The limiting structure comprises elastic pieces which are at least arranged on two opposite inner side walls of the box body structure, the elastic pieces sequentially comprise fixing parts, guiding parts and limiting parts along the direction away from the bottom of the box body structure, the limiting parts are perpendicular to the corresponding inner side walls, the guiding parts and the limiting parts are obliquely arranged, one ends of the guiding parts are connected with one ends of the limiting parts away from the corresponding inner side walls, and the other ends of the guiding parts are close to the corresponding inner side walls;

The supporting structure comprises supporting plates which are at least arranged on two opposite inner side walls of the box body structure, and the distance between the supporting surface of the supporting plate and the bottom of the box body structure is smaller than the distance between the limiting part and the bottom of the box body structure, so that the circuit board is fixed between the supporting plate and the limiting part.

2. The shield according to claim 1, wherein the fixing portions are parallel to the corresponding inner side walls, and an end of the fixing portion near the bottom of the case structure is fixed to the corresponding inner side wall.

3. The shielding case according to claim 1, wherein the fixing portion, the limiting portion and the guiding portion are integrally formed, the limiting portion is formed by bending one end of the fixing portion away from the bottom of the case structure in a direction away from the corresponding inner side wall, and the guiding portion is formed by reversely bending one end of the limiting portion away from the fixing portion.

4. The shield according to claim 1, wherein a first groove is formed in the inner side wall, the first groove being formed by recessing a portion of the inner side wall away from a center of the case structure, and the spring is disposed in the first groove.

5. The shield of claim 4 wherein a portion of the first recess is recessed away from the center of the box structure to form a second recess, and wherein orthographic projections of the stopper and the guide on the corresponding inner side wall are located in the second recess.

6. The shield according to claim 1, wherein the support plate is of U-shaped configuration with an opening of the support plate disposed toward the corresponding inner side wall.

7. The shield of claim 6 wherein the side of the support plate remote from the bottom of the box structure is convexly provided with a protrusion to locate the circuit board.

8. The shield according to claim 6, wherein the support plate is formed by a portion of the inner side wall being recessed in a direction toward a center of the box structure.

9. A display device comprising a display module, a housing, and the shield of any one of claims 1-8, the shield being positioned between the display module and the housing.