Assembly structure with elastic fixing function, backlight module and display device

Abstract

An assembly structure with an elastic fixing function comprises a first body, a second body and an elastic fixing member. The elastic fixing member passes through the notch and can be deformed and embedded in the first limiting portion of the first body and the second limiting portion of the second body when passing through the first opening of the first body and the second opening of the second body, thereby locking the first body and the second body together. Therefore, the first body and the second body will not be offset and have locking deformation problems. The elastic fixing member can be reused, which can reduce waste generation, improve assembly yield, and achieve energy saving and carbon reduction. The present application also provides a backlight module and a display device including the assembly structure.

Description

Technical Field

[0001] The present application relates to an assembly structure, and in particular to an assembly structure for a backlight module and a display device and having an elastic fixing function. Background Art

[0002] The backlight module is the light source of the liquid crystal display device, and is mainly composed of optical film, light guide plate, LED light strip, heat sink, back plate and plastic frame. As narrow frame has become the mainstream design, its internal optical components are also developing towards lightweight, which requires a more precise combination structure. The current assembly of the back plate and the heat sink uses screws or rivets to fix the two parts. However, if the alignment of the back plate and the heat sink is inaccurate, or there is an offset during the operation, the operator does not find it and directly locks the two parts. The heat sink will be locked and deformed, which may increase the risk of slipping and require rework. In addition to increasing assembly time, it also reduces product yield.

[0003] In addition, since the studs corresponding to the screws are directly embedded in the back panel, if the inner wall of the stud hole has loose or broken teeth, or if the stud is not embedded properly during the stamping process, the entire back panel cannot be reworked or used for other purposes and can only be scrapped, increasing costs and waste, and failing to achieve the benefits of energy and carbon reduction. In short, the use of screws for locking or rivets for riveting is very likely to generate undesirable failure costs. Summary of the invention

[0004] Therefore, the purpose of this application is to provide an assembly structure that solves the above problems.

[0005] An assembly structure with an elastic fixing function comprises a first body, a second body and an elastic fixing member. The first body comprises a first side wall, a first limiting portion formed on the first side wall, and a first opening connected to the first limiting portion and formed on the top surface of the first side wall, wherein the first limiting portion and the first opening have a first limiting width and a first opening width along a first direction, and the first limiting width is greater than the first opening width. The second body comprises a second side wall, a second limiting portion formed on the second side wall, and a second opening connected to the second limiting portion and formed on the top surface of the second side wall, wherein the second limiting portion and the second opening have a second limiting width and a second opening width along the first direction, and the second limiting width is greater than the second opening width. The elastic fixing member comprises a neck and a notch formed on the neck.

[0006] The first limiting portion and the second limiting portion overlap each other along a second direction different from the first direction. When the elastic fixing member is assembled with the first body and the second body along a third direction different from the first direction and the second direction, the neck is compressed at the first opening and the second opening to reduce the width of the gap and deform, until the neck passes through the first opening and the second opening and enters the first limiting portion and the second limiting portion, and then the neck is no longer deformed and the width of the gap is restored, so that the neck can be clamped in the first limiting portion and the second limiting portion.

[0007] Another technical means of the present application is that the elastic fixing member also includes a convex ring portion which is arranged on the side edge of the neck and protrudes outward, and the convex ring portion abuts against a surface of one of the first side wall and the second side wall.

[0008] Another technical means of the present application is that the elastic fixing part also includes two convex ring parts which are respectively arranged on the front and back side edges of the neck and protrude outwards, and the two convex ring parts respectively press against the surface of the first side wall and the surface of the second side wall.

[0009] Another technical means of the present application is that the distance between the two convex ring parts is equal to the total thickness of the first body and the second body.

[0010] Another technical means of the present application is that the elastic fixing member can be arranged in the first limiting portion and the second limiting portion along the first opening and the second opening, and the shape of the elastic fixing member corresponds to the shape of the first limiting portion and the second limiting portion.

[0011] Another technical means of the present application is that the width of the notch is greater than the first opening width and the second opening width.

[0012] Another technical means of the present application is that the first side wall or the second side wall also has a receiving groove, and the depth of the receiving groove is not less than the thickness of the convex ring part, so that the convex ring part can be embedded in the receiving groove without protruding from the surface of the first side wall or the second side wall.

[0013] Another object of the present application is to provide a backlight module, comprising the aforementioned assembly structure, wherein the first body is a back plate, and the second body is a heat sink.

[0014] Another object of the present application is to provide a display device comprising the aforementioned backlight module.

[0015] The effect of the present application is that the notch design of the elastic fixing part can provide elastic force, so that the elastic fixing part is deformed and embedded in the first limiting part of the first body and the second limiting part of the second body when passing through the first opening of the first body and the second opening of the second body, thereby locking the first body and the second body together, so that the first body and the second body will not be offset and have locking deformation problems, and the elastic fixing part can be reused, which can reduce waste generation, improve assembly yield, reduce the failure cost caused by screw locking or poor rivet riveting, thereby achieving the effect of energy saving and carbon reduction, and also has the characteristics of heavy work, which can reduce the working hours of heavy work and the consumption rate of related parts and materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional diagram of a first preferred embodiment of the assembly structure with elastic fixing function of the present application;

[0017] Figure 2 It is a three-dimensional diagram illustrating the assembly state of the first body, the second body and the elastic fixing member in the first preferred embodiment.

[0018] Figure 3 This is a top view, for auxiliary explanation Figure 2 ;

[0019] Figure 4 is a three-dimensional diagram of a second preferred embodiment of the assembly structure with elastic fixing function of the present application; and

[0020] Figure 5 It is a three-dimensional diagram illustrating the assembly state of the first body, the second body and the elastic fixing member of the second preferred embodiment. DETAILED DESCRIPTION

[0021] The features and technical contents of the related patent applications of this application will be clearly presented in the following detailed description of the preferred embodiments with reference to the accompanying drawings. Before the detailed description, it should be noted that similar components are represented by the same numbers.

[0022] See also Figure 1, is a first preferred embodiment of the assembly structure with elastic fixing function of the present application, comprising a first body 1, a second body 2 and an elastic fixing member 3. The first body 1 has a first side wall 11, a first limiting portion 12 formed on the first side wall 11, and a first opening 13 connected to the first limiting portion 12 and formed on the top surface of the first side wall 11. The first limiting portion 12 and the first opening 13 have a first limiting width 121 and a first opening width 131 along the first direction X. The second body 2 has a second side wall 21, a second limiting portion 22 formed on the second side wall 21, and a second opening 23 connected to the second limiting portion 22 and formed on the top surface of the second side wall. The second limiting portion 22 and the second opening 23 have a second limiting width 221 and a second opening width 231 along the first direction X. The elastic fixing member 3 includes a neck 31 and a notch 32 formed on the neck 31.

[0023] The assembly structure of the present application is applied to a detachable combination structure between different objects. In the present embodiment, the first body 1 and the second body 2 are respectively plate-like components. Preferably, the first body 1 is a back plate, the second body 2 is a heat sink, and the elastic fixing member 3 has an arc appearance. However, the appearance or actual application of the first body 1, the second body 2 and the elastic fixing member 3 should not be limited to this.

[0024] See also Figure 2 , Figure 3 , the first limiting portion 12 and the second limiting portion 22 overlap each other along a second direction Z different from the first direction X. The shape of the elastic fixing member 3 corresponds to the shape of the first limiting portion 12 and the second limiting portion 22, and the first limiting width 121 is greater than the first opening width 131, and the second limiting width 221 is greater than the second opening width 231. When the elastic fixing member 3 passes through the first opening 13 and the second opening 23 along a third direction Y different from the first direction X and the second direction Z, the neck 31 is compressed at the first opening 13 and the second opening 23, so that the width of the notch 32 is reduced and deformed, until it passes through the first opening 13 and the second opening 23 and enters the first limiting portion 12 and the second limiting portion 22, the neck 31 no longer deforms and the width of the notch 32 is restored, so that the neck 31 can be clamped in the first limiting portion 12 and the second limiting portion 22. The notch 32 of the elastic fixing member 3 is designed to make the elastic fixing member 3 have elastic force. Therefore, when the elastic fixing member 3 is pressed through the first opening 13 and the second opening 23 and enters the first limiting portion 12 and the second limiting portion 22 with a larger width, the elastic fixing member 3 can be supported against the inner walls of the first limiting portion 12 and the second limiting portion 22 and cannot be easily separated, thereby limiting the movement of the first body 1 and the second body 2 in the X and Y axis directions.

[0025] Since the first opening 13 and the second opening 23 are respectively arranged on the top surfaces of the first side wall 11 and the second side wall 21 , the first body 1 and the second body 2 can be automatically aligned with each other during the embedding process of the elastic fixing member 3 , thereby improving the position accuracy and preventing the locking deformation problem from occurring. In addition, by changing the width of the notch 32 of the elastic fixing member 3, the elastic fixing member 3 can be repeatedly clamped or detached from the first body 1 and the second body 2. Therefore, the first body 1 and the second body 2 do not need to be additionally provided with studs or snap-on structures. The first body 1 and the second body 2 can be easily fixed by the elastic fixing member 3 to complete the assembly, avoiding the problem of locking deformation caused by screw locking or rivet riveting. In addition, the risk of screw slippage or chipping, or the scrapping problem derived from poor riveting can also be avoided. In this way, the failure cost caused by screw locking or poor rivet riveting can be effectively reduced, the material processing cost can be reduced, the assembly yield can be improved, and the benefits of energy and carbon reduction can be achieved at the same time. It also has the characteristics of heavy work, which can reduce the working hours of heavy work and the consumption rate of related parts and materials.

[0026] In this embodiment, the elastic fixing member 3 also includes two convex ring portions 33 respectively arranged on the front and back side edges of the neck 31 and protruding outward, and the two convex ring portions 33 respectively press against the surface of the first side wall 11 and the surface of the second side wall 21. The spacing between the two convex ring portions 33 is equal to the combined thickness of the first body 1 and the second body 2. Therefore, when the convex ring portion 33 is arranged on the first limiting portion 12 and the second limiting portion 22, there will be no gap between the first body 1 and the second body 2 and relative displacement, and the movement of the two bodies in the Z-axis direction is limited, so that the combination of the two bodies is more secure. However, the convex ring portion 33 can also be arranged only on the side edge of the neck 31 according to actual needs, and the number, method or position of the convex ring portion 33 should not be limited to this.

[0027] In this embodiment, the second side wall 21 also has a receiving groove 211, so that one of the convex ring parts 33 of the elastic fixing member 3 can be placed in the receiving groove 211 along the third direction Y, wherein the depth of the receiving groove 211 is not less than the thickness of the convex ring part 33, so that the convex ring part 33 does not protrude from the surface of the second side wall 21, which can reduce the thickness of the entire assembly structure and reduce the occupation of the internal space. The receiving groove 211 can be set on the first side wall 11 according to actual needs, and the depth of the receiving groove 211 can be consistent with the thickness of the convex ring part 33, but the setting position of the receiving groove 211 or the depth design should not be limited to this.

[0028] See also Figure 5, which is the second preferred embodiment of the assembly structure with elastic fixing function of the present application. The second preferred embodiment is substantially the same as the first preferred embodiment, and the similarities are not described in detail here. The difference is that the notch 32 of the elastic fixing member 3 is larger than the first opening width 131 and the second opening 23 width 231. In this embodiment, the appearance of the elastic fixing member 3 is trapezoidal, and the first limiting portion 12 and the second limiting portion 22 have a trapezoidal shape corresponding to the elastic fixing member 3. In actual implementation, the shapes of the elastic fixing member 3, the first limiting portion 12, and the second limiting portion 22 may vary depending on actual needs and should not be limited to this. Therefore, no matter the shapes of the elastic fixing member 3, the first limiting portion 12, and the second limiting portion 22 Figure 1 Arc or Figure 5 When the elastic fixing member 3 is clamped in the first limiting portion 12 and the second limiting portion 22, the gaps in the first limiting portion 12 and the second limiting portion 22 will be filled, and the elastic fixing member 3 is not easy to be displaced, thereby improving the assembly stability.

[0029] In addition to disclosing the assembly structure, the present application can also apply the assembly structure to a backlight module or a display device. When applied to a backlight module, the backlight module includes the above-mentioned assembly structure, and when applied to a display device, the display device includes the above-mentioned backlight module, wherein the first body is a back plate, and the second body is a heat sink. In other words, the assembly structure of the present application can be applied to the assembly of the back plate and the heat sink of the backlight module, but can also be applied to any two or more bodies for fixing, and is not limited to the back plate and the heat sink of the backlight module.

[0030] In summary, the present application has an assembly structure, a backlight module and a display device with an elastic fixing function. Through the notch 32 design of the elastic fixing member 3, the elastic fixing member 3 has elastic force and can be deformed and embedded in the first limiting portion 12 of the first body 1 and the second limiting portion 22 of the second body 2 when passing through the first opening 13 of the first body 1 and the second opening 23 of the second body 2, thereby locking the first body 1 and the second body 2 together to limit the movement of the two bodies on the X and Y axes, and the convex ring portion 33 of the elastic fixing member 3 also provides a supporting and limiting effect to clamp the first body 1 and the second body 2 on the neck 31 of the elastic fixing member 3 to limit the movement of the two bodies on the Z axis, so that the first body 1 and the second body 2 will not be offset and have a locking deformation problem. The elastic fixing member 3 can also be reused to reduce waste generation, improve assembly yield, and thus achieve the effect of saving resources.

[0031] However, what is described above are only two preferred embodiments of the present application, and should not be used to limit the scope of implementation of the present application. That is, all simple equivalent changes and modifications made according to the claims and description of the present application are still within the scope of the patent application.

[0032] [Description of Reference Numerals]

[0033] 1 The first ontology

[0034] 11 First side wall

[0035] 12 First limiter

[0036] 121 First limit width

[0037] 13 First Opening

[0038] 131 First opening width

[0039] 2 Second entity

[0040] 21 Second side wall

[0041] 211 Container

[0042] 22 Second limiter

[0043] 221 Second limit width

[0044] 23 Second Opening

[0045] 231 Second opening width

[0046] 3 Elastic fixings

[0047] 31 Neck

[0048] 32 Gap

[0049] 33 convex ring part

[0050] X first direction

[0051] Z Second direction

[0052] Y third direction

Claims

1. An assembly structure with elastic fixing function, characterized in that: Include: A first body, comprising a first side wall, a first limiting portion formed on the first side wall, and a first opening connected to the first limiting portion and formed on a top surface of the first side wall, wherein the first limiting portion and the first opening have a first limiting width and a first opening width along a first direction, and the first limiting width is greater than the first opening width; A second body having a second side wall, a second limiting portion formed on the second side wall, and a second opening connected to the second limiting portion and formed on a top surface of the second side wall, wherein the second limiting portion and the second opening have a second limiting width and a second opening width along the first direction, and the second limiting width is greater than the second opening width; and An elastic fixing member, comprising a neck and a notch formed on the neck; Wherein, the first limiting portion and the second limiting portion overlap each other along a second direction different from the first direction; When the elastic fixing member is assembled to the first body and the second body along a third direction different from the first direction and the second direction, the neck is compressed at the first opening and the second opening to reduce the width of the gap and produce deformation, until the neck passes through the first opening and the second opening and enters the first limiting portion and the second limiting portion, and then the neck no longer produces deformation and the width of the gap is restored, so that the neck can be clamped in the first limiting portion and the second limiting portion. The elastic fixing member also includes two convex ring parts which are respectively arranged on the front and rear side edges of the neck and protrude outwards. The two convex ring parts respectively press against the surface of the first side wall and the surface of the second side wall.

2. The assembly structure with elastic fixing function as claimed in claim 1, characterized in that: The distance between the two convex ring parts is equal to the total thickness of the first body and the second body.

3. The assembly structure with elastic fixing function as claimed in claim 1, characterized in that: The elastic fixing member can be disposed in the first limiting portion and the second limiting portion along the first opening and the second opening, and the shape of the elastic fixing member corresponds to the shape of the first limiting portion and the second limiting portion.

4. The assembly structure with elastic fixing function as claimed in claim 1, characterized in that: The width of the notch is greater than the first opening width and the second opening width.

5. The assembly structure with elastic fixing function as claimed in claim 1, characterized in that: The first side wall or the second side wall also has a receiving groove, and the depth of the receiving groove is not less than the thickness of the convex ring part, so that the convex ring part can be embedded in the receiving groove without protruding from the surface of the first side wall or the second side wall.

6. A backlight module, characterized in that: It comprises an assembly structure with elastic fixing function as described in any one of claims 1 to 5, wherein the first body is a back plate and the second body is a heat sink.

7. A display device, characterized in that: It comprises the backlight module as claimed in claim 6.

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