Clamping structure of rear shell and backboard of display and liquid crystal display

Abstract

The utility model belongs to the technical field of liquid crystal displays, and discloses a clamping structure for a rear shell and a back plate of a display and the liquid crystal display. The clamping structure of the display rear shell and the backboard comprises a first clamping piece and a first matching piece which can be clamped in a matched mode, and a second clamping piece and a second matching piece which can be clamped in a matched mode. According to the utility model, the first clamping piece and the first matching piece are clamped and matched to realize quick positioning and locking through direct matching of geometrical shapes, tools or complex operation steps are not needed, and the assembly process is obviously simplified, so that the production efficiency is favorably improved. According to the clamping structure of the rear shell and the back plate of the display, the fit clearance a between the second clamping piece and the second matching piece is larger than the fit clearance b between the first clamping piece and the first matching piece (namely a is larger than b), and a graded matching mechanism of first coarse positioning and then fine clamping is formed, so that the operation steps and the time cost are reduced, and the working efficiency is improved. The high-efficiency assembly requirement is difficult to meet in large-scale production.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid crystal display technical field especially relates to a display rear shell and backplate's joint structure and liquid crystal display. BACKGROUND

[0002] In the field of consumer electronics, commercial display, industrial control, liquid crystal display as a key display device is widely used. With the growing demand of various industries for display equipment, the production scale of liquid crystal display continues to expand, and higher requirements are put forward for its production efficiency and assembly convenience.

[0003] The rear shell in the liquid crystal display is used as an outer protective shell, mainly bearing the functions of protecting the internal components, bearing the appearance design (such as modeling, color matching) and reserving the interface opening hole. The backplate is an internal core support component, usually made of metal (such as aluminum alloy, steel plate) or high-strength engineering plastic, which provides a mounting surface for liquid crystal panel, backlight module, drive circuit board and other components to ensure the position of internal components.

[0004] Correspondingly, in the assembly process of the liquid crystal display, the connection between the rear shell and the backplate is an important link. At present, the industry generally uses bolts or buckle structures to realize the connection between the two. Among them, the bolt structure needs to set corresponding screw holes on the rear shell and the backplate, and the fixing is completed by passing the bolt through the screw hole and tightening. It is found in actual production operation that the assembly process of this bolt structure is relatively complex. During assembly, the screw holes need to be accurately aligned, and then the tightening operation is performed, which not only consumes a lot of time and labor, but also has certain requirements for the proficiency of the operator. In large-scale assembly line production, the complex assembly process can easily affect the overall production efficiency.

[0005] In addition, in large-size liquid crystal displays, although the buckle structure can realize the connection between the rear shell and the backplate, due to the large size of the rear shell, multiple buckles need to be set on the edge. Affected by the processing precision of the components, the rigidity of the material and the deformation in the assembly process, the buckle position deviation is easy to occur, which requires repeated adjustment of the buckle alignment during buckling, increases the operation steps and time cost, and is difficult to meet the high-efficiency assembly demand in large-scale production.

[0006] Therefore, the above problems need to be solved. INVENTION CONTENTS

[0007] The utility model aims at providing a display rear shell and backplate's joint structure and liquid crystal display, to simplify the assembly process, improve production efficiency, and at the same time, reduce the maintenance cost and time cost in use.

[0008] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0009] The application discloses a clamping structure of a display back shell and a back plate, which comprises first clamping pieces and first matching pieces capable of being clamped and matched, and second clamping pieces and second matching pieces capable of being clamped and matched.

[0010] The first clamping pieces and the second clamping pieces are arranged on the surface of the back shell facing the back plate, and a plurality of the first clamping pieces and the second clamping pieces are arranged at the edge position close to the surface.

[0011] The first matching pieces and the second matching pieces are arranged on the surface of the back plate facing the back shell, and a plurality of the first matching pieces correspond to a plurality of the first clamping pieces, and a plurality of the second matching pieces correspond to a plurality of the second clamping pieces.

[0012] The matching gap of the second clamping pieces and the second matching pieces is a, and the matching gap of the first clamping pieces and the first matching pieces is b, and the relationship between a and b is a>b.

[0013] Preferably, the plurality of the second clamping pieces correspond to the plurality of the first clamping pieces one by one, so that any second clamping piece is adjacent to the corresponding first clamping piece.

[0014] Preferably, the first matching piece comprises a matching hole and a matching surface, the matching surface is arranged around the periphery of the matching hole, and the first clamping piece is formed with a clamping part gradually expanding from top to bottom, and the clamping part can pass through the matching hole and abut against the matching surface through the bottom surface of the clamping part.

[0015] Preferably, at least one end of the clamping part gradually expands in the horizontal direction.

[0016] Preferably, the first clamping piece further comprises a clamping body and a reinforcing part, and the reinforcing part is arranged on the clamping body and connected to the back shell.

[0017] Preferably, the reinforcing part gradually expands from top to bottom.

[0018] Preferably, the second clamping piece comprises a positioning column and a plurality of reinforcing parts, the plurality of reinforcing parts are arranged around the periphery of the positioning column, and the plurality of reinforcing parts can be connected to the back shell.

[0019] Preferably, the first clamping piece is integrally formed on the back shell.

[0020] Preferably, the second clamping piece is integrally formed on the back shell.

[0021] A liquid crystal display comprises a rear shell, a back plate and a clamping structure of the display rear shell and the back plate as described above, the clamping structure of the display rear shell and the back plate is arranged between the rear shell and the back plate, and is used for connecting the rear shell and the back plate.

[0022] The utility model discloses beneficial effects:

[0023] The clamping and cooperation of the first clamping member and the first cooperating member can realize quick positioning and locking through direct adaptation of geometric shapes, without the aid of tools or complex operation steps, significantly simplifying the assembly process, thereby helping to improve production efficiency. In addition, the dependence on the proficiency of the operator is reduced, the labor cost is reduced, and it is especially suitable for the needs of quick assembly and disassembly in large-scale assembly line production.

[0024] In addition, the cooperation gap a of the second clamping member and the second cooperating member in the clamping structure of the display rear shell and the back plate is greater than the cooperation gap b of the first clamping member and the first cooperating member (i.e. a > b), forming a hierarchical cooperation mechanism of "rough positioning first and then precise clamping". Specifically, the larger cooperation gap a of the second clamping member and the second cooperating member provides a tolerance for the initial docking of the rear shell and the back plate, allowing a certain positional deviation or angular error during assembly, reducing the alignment difficulty, allowing the operator to quickly complete the insertion of the second clamping member without precise alignment, significantly improving the initial positioning efficiency, thereby reducing the operation steps and time cost to meet the efficient assembly needs in large-scale production. In addition, the smaller cooperation gap b of the first clamping member and the first cooperating member ensures the accuracy and tightness during clamping. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the structural diagram of the rear shell provided by the utility model;

[0026] Figure 2 is the structural diagram of the first clamping member and the second clamping member provided by the utility model Figure One ;

[0027] Figure 3 is the structural diagram of the first clamping member and the second clamping member provided by the utility model Figure Two .

[0028] In the figure:

[0029] 100, rear shell;

[0030] 1, first clamping member; 11, clamping part; 12, clamping body; 13, reinforcing part;

[0031] 2, second clamping member; 21, positioning column; 22, reinforcing part. DETAILED DESCRIPTION

[0032] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described accompanying drawings.

[0033] In this application, the terms "including", "containing", "having" or any other similar words are intended to encompass non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or other elements inherent in such a process, method, article or apparatus. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or apparatus including the element.

[0034] In this application, the term "and / or" is a description of the association relationship between the associated objects, which means that there can be three kinds of relationships. For example, a centrifugal vortex magnetic force pump and / or a centrifugal vortex magnetic force pump can mean that there is only one centrifugal vortex magnetic force pump, there is a centrifugal vortex magnetic force pump and a centrifugal vortex magnetic force pump, and there is only a centrifugal vortex magnetic force pump. In addition, the character " / " in this application generally represents that the front and rear associated objects are a "and / or" relationship.

[0035] In this application, the terms "connection", "combination", "coupling", "mounting" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. Among them, for example, direct connection refers to the connection of two parts or components without the need for an intermediate part, and indirect connection refers to the connection of two parts or components with at least one intermediate part. The two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0036] In this application, those of ordinary skill in the art will understand that the relative terms used in connection with a quantity or a condition (for example, "about", "approximately", "substantially" and the like) include the stated value and have the meaning indicated by the context. For example, the relative terms at least include the degree of error related to the measurement of a specific value, the tolerance caused by manufacturing, assembly, use and the like related to a specific value. Such terms should also be considered to disclose the range defined by the absolute values of the two endpoints. The relative terms can refer to the addition or subtraction of a certain percentage (for example, 1%, 5%, 10% or more) of the indicated value. The numerical value without the relative term should also be disclosed as a specific value with a tolerance. In addition, "substantially" when expressing the relative angular positional relationship (for example, substantially parallel, substantially perpendicular), can refer to the addition or subtraction of a certain degree (for example, 1 degree, 5 degrees, 10 degrees or more) based on the indicated angle.

[0037] In this application, those of ordinary skill in the art will understand that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or multiple parts in combination.

[0038] In this application, the orientation terms such as "upper", "lower", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the application. In addition, it should also be understood in the context that when referring to one element connected to another element "on" or "under", it can not only be directly connected to another element "on" or "under", but also indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the orientation terms such as upper side, lower side, left side, right side, front side, back side and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the positive lower side, the left lower side, the right lower side, the front lower side and the back lower side and the like.

[0039] Please refer to Figures 1 to 3 The embodiment provides a clamping structure of a display rear shell and a back plate, which comprises first clamping pieces 1 and first matching pieces capable of being matched and clamped, and second clamping pieces 2 and second matching pieces capable of being matched and clamped.

[0040] The first clamping pieces 1 and the second clamping pieces 2 are arranged on the surface of the rear shell 100 facing the back plate, and are distributed at the edge position close to the surface. The first matching pieces and the second matching pieces are arranged on the surface of the back plate facing the rear shell 100, and the plurality of first matching pieces are arranged one by one corresponding to the plurality of first clamping pieces 1, and the plurality of second matching pieces are arranged one by one corresponding to the plurality of second clamping pieces 2. The matching gap between the second clamping piece 2 and the second matching piece is a, the matching gap between the first clamping piece 1 and the first matching piece is b, and the relationship between a and b is: a>b.

[0041] In the installation, the plurality of first clamping members 1 are first corresponded to the corresponding first matching members, and then the rear shell 100 is pressed to make the plurality of first clamping members 1 correspondingly clamped with the plurality of first matching members, thereby completing the connection of the rear shell 100 and the back plate. In the disassembly, only a uniform external force is applied to the first clamping member 1 until the plurality of first clamping members 1 are separated from the corresponding first matching members, and then the rear shell 100 and the back plate can be separated.

[0042] In this way, compared with the traditional bolt structure which needs to be aligned with the screw hole one by one and tightened / loosened, the clamping and matching of the first clamping member 1 and the first matching member can realize quick positioning and locking through direct geometric adaptation, without the need for tools or complex operation steps, which significantly simplifies the assembly process and helps to improve production efficiency. In addition, the connection mode of the clamping and matching of the first clamping member 1 and the first matching member reduces the dependence on the proficiency of the operator and reduces the labor cost, and is especially suitable for the needs of quick assembly and disassembly in large-scale assembly line production.

[0043] In addition, the plurality of first clamping members 1 distributed around the rear shell 100 and clamped with the corresponding first matching members can change the connection mode from "point-by-point bolt fixing" to "multi-point clamping and matching", which can ensure the connection strength and improve the assembly efficiency.

[0044] More importantly, the clamping structure of the display rear shell and the back plate is provided with the second clamping member 2 and the second matching member, and the matching gap a of the second clamping member 2 and the second matching member is greater than the matching gap b of the first clamping member 1 and the first matching member (i.e. a > b), forming a hierarchical matching mechanism of "rough positioning first and then precise clamping". Specifically, the larger matching gap a of the second clamping member 2 and the second matching member provides a tolerance for the initial docking of the rear shell 100 and the back plate, allowing a certain positional deviation or angular error during assembly, reducing the alignment difficulty, and allowing the operator to quickly complete the insertion of the second clamping member 2 without precise alignment, thereby significantly improving the initial positioning efficiency and reducing the operation steps and time cost to meet the efficient assembly needs in large-scale production. In addition, the smaller matching gap b of the first clamping member 1 and the first matching member ensures the accuracy and tightness of the clamping.

[0045] In particular, the plurality of second clamping members 2 correspond to the plurality of first clamping members 1 one by one, so that any second clamping member 2 is adjacent to the corresponding first clamping member 1. The second clamping member 2 and the first clamping member 1 adopt a one-to-one and adjacent layout, and the adjacent arrangement enables the second clamping member 2 to provide a direct spatial positioning reference for the corresponding first clamping member 1. In the assembly process, the insertion action of the second clamping member 2 can guide the first clamping member 1 to quickly align with the first matching member, significantly reducing the alignment difficulty of the two. Because the second clamping member 2 is adjacent to the first clamping member 1, after the second clamping member 2 completes the preliminary positioning, the first clamping member 1 does not need to be adjusted additionally and can naturally approach the first matching member by virtue of the adjacent relationship, avoiding the multiple alignment operations caused by the position of the components being far apart in the clamping structure of the traditional split display back cover and back plate, thereby greatly improving the assembly efficiency.

[0046] In the embodiment, the first matching member includes a matching hole and a matching surface, and the matching surface is arranged around the periphery of the matching hole. The first clamping member 1 is formed with a clamping portion 11 gradually expanding from top to bottom. After the clamping portion 11 passes through the matching hole, the bottom surface of the clamping portion 11 abuts against the matching surface.

[0047] In this way, the clamping portion 11 gradually expanding from top to bottom on the first clamping member 1 can play a guiding role when inserted into the matching hole, even if there is a certain deviation in the initial position, so that it can naturally slide into the matching hole, thereby reducing the requirement for accurate alignment of the first clamping member 1 and the first matching member during assembly, reducing the assembly difficulty, and improving the assembly efficiency. Especially in the assembly line of large-scale production, the operator or automatic equipment does not need to spend a lot of time to make fine position adjustment, but can quickly complete the clamping operation, thereby effectively improving the overall production speed.

[0048] In addition, after the clamping portion 11 passes through the matching hole, the bottom surface of the clamping portion 11 abuts against the matching surface, which can provide stable connection. The matching surface is arranged around the periphery of the matching hole, which increases the contact area between the clamping portion 11 and the first matching member. The larger contact area can disperse the stress generated during clamping, avoid local damage caused by stress concentration, and thereby improve the overall strength and stability of the clamping structure of the display back cover and the back plate.

[0049] It should be noted that the first clamping member 1 and the first matching member can also adopt an interference clamping structure. For example, the first clamping member 1 is pressed into the insertion hole of the first matching member by a convex column under the action of an external force, and after being inserted in place, the hole wall and the convex column surface form an interference contact, and axial locking is realized by relying on the friction force of the contact surface.

[0050] To facilitate disassembly of the rear shell 100, the engagement portion 11 is gradually enlarged in the horizontal direction at least at one end, so that the engagement portion 11 has a gradually changing profile with a smaller end and a larger end. When it is necessary to separate the rear shell 100 from the back plate, an operator can apply a force obliquely (rather than an axial force perpendicular to the mating hole) to cause the engagement portion 11 to be angularly offset from the mating hole. At this time, the smaller end of the engagement portion 11 can first come out of the hole due to its smaller cross-sectional size than the entrance of the mating hole, serving as a separation fulcrum, while the larger end gradually tilts with the oblique movement, and its contact area with the inner wall of the mating hole gradually decreases, significantly reducing the pull-out resistance.

[0051] Generally, when assembling, the first engagement member 1 needs to be pressed to be engaged with the mating portion. If the structural strength of the first engagement member 1 is not enough, it can be deformed or even broken, thereby affecting the product quality. Therefore, to avoid the above problems, the first engagement member 1 further includes an engagement body 12 and a reinforcing portion 13, the reinforcing portion 13 is arranged on the engagement body 12 and connected to the rear shell 100, and the reinforcing portion 13 gradually enlarges from top to bottom.

[0052] It can be understood that the reinforcing portion 13 is connected between the engagement body 12 and the rear shell 100, providing additional support for the entire engagement body 12. When the rear shell 100 and the back plate are subjected to external force, the reinforcing portion 13 can share part of the load. In addition, due to the gradually enlarged shape of the reinforcing portion 13 from top to bottom, the connection area near the connection part is larger, which can better disperse stress and avoid damage such as breakage and deformation of the connection between the engagement body 12 and the rear shell 100 due to concentrated stress, thereby greatly improving the overall strength and durability of the engagement structure of the display rear shell and the back plate.

[0053] It can also be understood that during the engagement process, as the first engagement member 1 gradually inserts into the mating hole, the smaller upper end of the reinforcing portion 13 first enters the mating hole, and as it penetrates deeper, the gradually increasing profile increases the fit between the reinforcing portion 13 and the inner wall of the mating hole, thereby making the first engagement member 1 more tightly engaged with the mating hole, effectively preventing shaking due to gaps, thereby enhancing the stability of the connection between the rear shell 100 and the back plate, and also preventing impurities such as dust and moisture from entering the interior of the device through the gaps, providing good protection for the internal electronic components, prolonging the service life of the liquid crystal display, and improving the overall performance and quality of the product.

[0054] In the embodiment, the second engaging member 2 is arranged on the rear shell 100, and the second cooperating member is correspondingly arranged on the back plate. Specifically, the second engaging member 2 comprises a positioning column 21 and a plurality of reinforcing portions 22 distributed on the periphery of the positioning column 21, and the plurality of reinforcing portions 22 can be connected to the rear shell 100. The second cooperating member is a positioning hole arranged on the back plate, the positioning column 21 can be inserted into the positioning hole, and the two are clearance fit. It is worth noting that the single column insertion structure is easy to bend due to single-point force when subjected to lateral load. The plurality of reinforcing portions 22 annularly support the positioning column 21, which can disperse the same load to multiple contact points, thereby significantly improving the bending resistance of the positioning column 21.

[0055] The random vibration acceleration (such as vibration generated by road transmission during transportation) borne by the large-size product during transportation is easy to cause the first engaging member 1 and the second engaging member 2 to loosen. Therefore, the first engaging member 1 and the second engaging member 2 are integrally formed on the rear shell 100. Specifically, in the embodiment, the first engaging member 1 and the second engaging member 2 are formed on the rear shell 100 by an injection molding process.

[0056] The embodiment further provides a liquid crystal display comprising the rear shell 100, the back plate and the display rear shell and back plate clamping structure described above, the display rear shell and back plate clamping structure is arranged between the rear shell 100 and the back plate, and the display rear shell and back plate clamping structure is used to connect the rear shell 100 and the back plate. It can be understood that the liquid crystal display comprising the display rear shell and back plate clamping structure has simple assembly process and high production efficiency.

[0057] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A clamping structure of a display back case and a back plate, characterized in that, The first clamping part (1) and the first matching part can be matched and clamped, and the second clamping part (2) and the second matching part can be matched and clamped. The first clamping part (1) and the second clamping part (2) are arranged on the surface of the back shell (100) facing the back plate, and a plurality of edges are arranged near the surface. The first matching part and the second matching part are arranged on the surface of the back plate facing the back shell (100), and a plurality of first matching parts are arranged one-to-one corresponding to a plurality of first clamping parts (1), and a plurality of second matching parts are arranged one-to-one corresponding to a plurality of second clamping parts (2). The second clamping part (2) and the second matching part have a matching gap a, the first clamping part (1) and the first matching part have a matching gap b, and the relationship between a and b is: a>b.

2. The clamping structure of a display back cover and a back plate according to claim 1, wherein, A plurality of second clamping parts (2) correspond one-to-one to a plurality of first clamping parts (1), so that any second clamping part (2) is adjacent to the corresponding first clamping part (1).

3. The clamping structure of a display back cover and a back plate according to claim 1, wherein, The first matching part includes a matching hole and a matching surface, and the matching surface is arranged around the matching hole. The first clamping part (1) has a clamping part (11) gradually expanding from top to bottom. After the clamping part (11) passes through the matching hole, the bottom surface of the clamping part (11) abuts against the matching surface.

4. The clamping structure of a display back cover and a back plate according to claim 3, wherein, The clamping part (11) gradually expands in the horizontal direction at least at one end.

5. The clamping structure of a display back case and a back plate according to claim 4, wherein, The first clamping part (1) further includes a clamping body (12) and a reinforcing part (13), and the reinforcing part (13) is arranged on the clamping body (12) and connected to the back shell (100).

6. The clamping structure of a display back case and a back plate according to claim 5, wherein, The reinforcing part (13) gradually expands from top to bottom.

7. The clamping structure of a display back case and a back plate according to claim 1, wherein, The second clamping part (2) includes a positioning column (21) and a plurality of reinforcing parts (22), and the plurality of reinforcing parts (22) are arranged around the positioning column (21), and the plurality of reinforcing parts (22) can be connected to the back shell (100).

8. The clamping structure of a display back case and a back plate according to claim 1, wherein, The first clamping part (1) is integrally formed on the back shell (100).

9. The clamping structure of a display back case and a back plate according to claim 8, wherein, The second clamping part (2) is integrally formed on the back shell (100).

10. A liquid crystal display, characterized by comprising: The liquid crystal display includes a back shell (100), a back plate, and a display back shell and back plate clamping structure according to any one of claims 1-9, the display back shell and back plate clamping structure is arranged between the back shell (100) and the back plate, and the display back shell and back plate clamping structure is used to connect the back shell (100) and the back plate.

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