CN103955094B - Frame mechanism for optical equipment - Google Patents

Abstract

The embodiment of the invention discloses a frame mechanism for optical equipment, which is used for fixing an optical unit comprising a plurality of penetration holes. The optical equipment comprises a frame unit and a fixing unit arranged on the frame part, wherein the frame unit comprises a backboard and a frame arranged at the periphery of the backboard; an accommodating space is formed by the frame and the backboard; the fixing unit comprises a plurality of fixing pieces corresponding to the penetration holes in position, and a plurality of buckling pieces corresponding to the fixing pieces and provided with through holes; each fixing piece is provided with a tenon provided with a center part and a plurality of fin parts surrounding the center part and approaching each other towards the center part. The optical unit is placed in the accommodating space, the fixing pieces are enabled to penetrate through the corresponding penetration holes respectively, the buckling pieces are buckled to the corresponding fixing pieces, and at the moment, the fin parts of the tenons approach each other toward the center parts and pass through the through holes of the buckling pieces, so that the optical unit can be positioned in the accommodating space.

Description

Frame mechanism for optical equipment

technical field

The invention relates to a frame mechanism, in particular to a frame mechanism for optical equipment.

Background technique

Liquid crystal display is currently the most popular type of display, and is commonly used in computer screens, display panels, or television products. When manufacturing a liquid crystal display, optical components such as a diffuser plate, an optical film, etc. must be mounted on a backplane, and then assembled into a complete display product in conjunction with a backlight module and a power supply solution.

Referring to FIG. 1 , it is a display backplane 1 in the prior art, and a diffuser plate 13 and an optical film 14 can be fixed on the display backplane 1 . The display back panel 1 includes a frame 11 and a plurality of locking components 12 . The frame 11 includes a body 110 and a plurality of locking holes 111 passing through the body 110 . The diffusion plate 13 and the optical film 14 are provided with a plurality of fixing holes 15 corresponding to the locking holes 111. The board 13 and the optical film 14 are fixed on the display backplane 1 .

However, in the prior art, the method of assembling the lock parts 12 is to use screws, rivets, or hooks as the lock parts 12, and it is necessary to use manpower or a mechanical arm to judge and fix the multiple lock parts 12 to the correct positions. It takes a lot of time to assemble, and assembly errors may occur. When manufacturing each optical component, it is also necessary to design additional structures for fixing the locking elements 12 , which may cause adverse effects in terms of cost, time, and yield.

Contents of the invention

Therefore, the object of the present invention is to provide a frame mechanism for an optical device that can easily install an optical component without additional locking components.

Therefore, the frame mechanism of the optical device of the present invention is used to fix a thin plate-shaped optical unit, and the optical unit includes a plurality of through holes arranged at intervals. The frame mechanism includes a frame unit and a fixing unit arranged on the frame unit.

The frame unit includes a back plate and a frame arranged on the periphery of the back plate. The back plate and the frame jointly surround an accommodating space for accommodating the optical unit.

The fixing unit includes a plurality of fixing parts corresponding to the perforation positions of the optical unit, and a plurality of fastening parts corresponding to the fixing parts and having a through hole. Each fixing piece has a tenon, and the tenon has a central part, and a plurality of wing parts surrounding the central part and capable of shrinking inwardly relative to the central part. The optical unit is placed in the accommodating space and the fixing parts are respectively passed through the corresponding through holes, and each fastening part is fastened to the corresponding fixing part, and the tenon of each fixing part passes through the corresponding When the through hole of the fastening component is formed, the tab portion of the tenon shrinks toward the central portion to pass through the through hole, so as to position the optical unit in the accommodating space.

The effect of the present invention is that these fastening pieces can respectively be fastened with a plurality of fixing pieces that pass through the corresponding perforations of the optical unit, so as to position the optical unit, and the The optical unit is installed in the frame unit, and the position of each fastening part corresponds to a fixing part, which can also avoid assembling errors.

Description of drawings

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein:

1 is a cross-sectional view illustrating a state in which a diffuser plate and an optical film are mounted on a prior art display backplane;

2 and 3 are three-dimensional exploded views illustrating a first preferred embodiment of the frame mechanism of the optical device of the present invention;

4 to 6 are schematic diagrams, illustrating that an assembly block is fastened to a fixture to install an optical unit;

Figure 7 is a top view illustrating a tenon of the fixing member;

Fig. 8 and Fig. 9 are both cross-sectional views, illustrating the state that the tenon is pierced through the assembly block;

10 is an exploded perspective view illustrating a second preferred embodiment of the frame mechanism of the optical device of the present invention;

11 and FIG. 12 are schematic diagrams illustrating the state of installing the optical unit in the second preferred embodiment;

13 is an exploded perspective view illustrating a third preferred embodiment of the frame mechanism of the optical device of the present invention;

14 and 15 are schematic diagrams illustrating the state of installing the optical unit in the third preferred embodiment;

Fig. 16 is a three-dimensional exploded view, which is another implementation of the third preferred embodiment;

Fig. 17 is a three-dimensional exploded view illustrating a fourth preferred embodiment of the frame mechanism of the optical device of the present invention;

Figure 18 is a sectional view illustrating the structure of a hook block of a fixed unit; and

FIG. 19 and FIG. 20 are schematic diagrams illustrating the state of installing the optical unit in the fourth preferred embodiment.

Among them, each mark in the figure is: 2 frame unit; 20 back plate; 200 accommodation space; 21 frame; 211 first frame segment; 212 second frame segment; Fixed unit; 31 fastening piece; 310 through hole; 3101 large aperture part; 3102 small aperture part; 3103 shoulder; 311 bending piece; 312 assembly block; 3120 body; 3221 central part; 3222 wing part; 33 hook block; 331 support part; 332 fixed part; 4 optical unit; 41 perforation;

detailed description

Before the present invention is described in detail, it should be noted that in the following description, similar components are denoted by the same numerals.

Referring to FIG. 2 , the first preferred embodiment of the frame mechanism of the optical device of the present invention is used to fix a thin plate-shaped optical unit 4 . The optical device can be a backlight module, and the backlight module can be direct type or side type. It should be noted that the optical unit 4 is actually composed of a multilayer film and an optical plate. The optical unit 4. The optical unit 4 includes a plurality of through holes 41 arranged at intervals. The frame mechanism includes a frame unit 2 and a fixing unit 3 disposed on the frame unit 2 .

The frame unit 2 includes a back plate 20 and a frame 21 disposed around the back plate 20 . The back plate 20 and the frame 21 together define a receiving space 200 for accommodating the optical unit 4 . The frame 21 has two first frame segments 211 respectively arranged on two opposite sides of the back plate 20, and two second frame segments 212 connected to the same side ends of the first frame segments 211 respectively. The length of the first frame segments 211 is greater than the lengths of the second frame segments 212 .

Referring to FIGS. 2 to 4 , the fixing unit 3 includes a plurality of fixing pieces 32 corresponding to the perforation positions of the optical unit 4 , and a plurality of fastening pieces 31 corresponding to the fixing pieces 32 and having a through hole 310 . It should be noted that the fasteners 31 can be arranged on the first frame sections 211 as shown in FIG. 2 , or on the second frame sections 212 as shown in FIG. 3 . , and the fixing pieces 32 are arranged corresponding to the fastening pieces 31, but not limited to the arrangement disclosed in FIG. 2 and FIG. 3 . In the following description, description will be made with the aspect of FIG. 2 .

Referring to FIG. 4 , each fastening member 31 has a flexible bending piece 311 connected to the frame 21 , and an assembly block 312 connected to the bending piece 311 . Each assembly block 312 has a body 3120 and a through hole 310 formed on the body 3120 . The through hole 310 has a large aperture portion 3101 , a small aperture portion 3102 with a smaller diameter than the large aperture portion 3101 , and a shoulder portion 3103 between the large aperture portion 3101 and the small aperture portion 3102 .

4 to 6, each fixing member 32 has a fixing column 321 connected to the back plate 20, and a small aperture portion 3102 connected to the fixing column 321 and passing through the through hole 310, and clamped The tenon 322 on the shoulder 3103 of the through hole 310 . Place the optical unit 4 in the accommodating space 200 and make the fixing parts 32 pass through the corresponding through holes 41, and then bend the bending pieces 311 of the fastening parts 31 to make the assembly As shown in FIG. 6 , the block 312 is buckled on the corresponding fixing member 32 to position the optical unit 4 in the accommodating space 200 .

Referring to FIG. 4 and FIG. 7, in order to make each tenon 322 more easily pass through the small aperture portion 3102 of the corresponding through hole 310 and be clamped on the shoulder 3103 of the through hole 310, the tenon 322 has a A central portion 3221 , and a plurality of wing portions 3222 surrounding the central portion 3221 and able to condense inwardly relative to the central portion 3221 . Referring to FIG. 8, when the tenon 322 is inserted into the through hole 310 of the corresponding assembly block 312, the fins 3222 can condense toward the central part 3221 and pass through the small aperture part 3102 of the through hole 310, as shown in FIG. 9 is clamped on the shoulder 3103 of the through hole 310 . If it is necessary to separate the assembling block 312 from the fixing member 32, force can also be exerted on the fins 3222 of the tenon 322 toward the central portion 3221, so that the fins 3222 face the central portion 3221 is condensed, so that the tenon 322 can exit the through hole 310 from the shoulder 3103 of the through hole 310 toward the direction of the small aperture portion 3102 , and the assembly block 312 and the fixing member 32 can be separated conveniently.

With the design of the assembly mechanism of the first preferred embodiment, when the assembler performs the assembly of positioning the optical unit 4 on the frame unit 2, it only needs to rely on the through holes 41 of the optical units 4 and the positions of the fixing units 3 The corresponding position of the fixing part 32 is to place the optical unit 4 in the accommodation space 200 of the frame unit 2, so that the fixing parts 32 are passed through the through holes 41 of the optical unit 4, which can be easily buckled and corresponding The fastening parts 31 and the fixing parts 32 are assembled together, and the above-mentioned design has a fool-proof effect, which can save the time of judging the assembly position and improve the yield rate. It can also adopt non-manual assembly methods such as robotic arm assembly, which can speed up assembly And make the process of manufacturing products more efficient.

Referring to FIG. 10 , it is the second preferred embodiment of the frame mechanism of the optical device of the present invention. The difference from the first preferred embodiment is that each second frame segment 212 has a depression formed towards the accommodating space The fixing groove 213 on one side of the 200 (only one side is shown due to viewing angle), and the fastening components 31 are disposed on the first frame segments 211 . In this preferred embodiment, when installing the optical unit 4, as shown in FIG. 4. As shown in FIG. 12, the second frame segments 212 are positioned first, and then the fastening parts 31 arranged on the first frame segments 211 are fastened to the corresponding fixing parts 32 (see FIG. 10), namely The optical unit 4 can be quickly and accurately installed in the frame unit 2 .

Referring to FIG. 13 , it is a third preferred embodiment of the frame mechanism of the optical device of the present invention. The difference from the first preferred embodiment is that the second frame segments 212 each have an extension connected to the back plate 20 part 214, and a buckle part 215 extending from the end of the extension part 214 away from the back plate 20 toward the direction of the accommodating space 200, and the fasteners 31 are arranged on the first frame segments 211 .

Referring to FIG. 14 , the frame unit 2 has flexibility, so when installing the optical unit 4, the extending parts 214 are bent outwards to increase the distance between the two buckling parts 215, so that the optical unit 4 The accommodating space 200 is entered through the buckling portions 215 . When the extending parts 214 return to the unbent position as shown in FIG. 15 , the optical unit 4 is positioned between the buckling parts 215 and the back plate 20 . Then fasten the fastening parts 31 provided on the first frame segments 211 to the corresponding fixing parts 32 (see FIG. 13 ), that is, the optical unit 4 can be quickly and accurately installed in the frame unit 2 .

It should be further explained that the implementation of this preferred embodiment can also be shown in Figure 16, the first frame segments 211 respectively have an extension 214 connected to the back plate 20, and an extension 214 from the extension 214. The buckle portion 215 extending toward the accommodating space 200 from the end away from the back plate 20, and the buckle parts 31 are arranged on the second frame segments 212, so that the same effect can be achieved without using This is the limit.

Referring to FIG. 17 , it is the fourth preferred embodiment of the frame mechanism of the optical device of the present invention. The difference from the first preferred embodiment is that the fixing unit 3 also includes a plurality of frames arranged at intervals along each first frame segment 211 On the hook block 33 of the back plate 20, the optical unit 4 also includes a plurality of hook setting holes 42 respectively corresponding to the hook blocks 33, and the snap fittings 31 are arranged on the second frame segments 212 . As shown in FIG. 18 , each hook block 33 has a supporting portion 331 extending upward from the backboard 20 , and a fixing portion 332 connected to the supporting portion 331 and forming a T-shape together with the supporting portion 331 . Referring to Figure 19, each hooking hole 42 has a piercing area 421 with an area substantially greater than or equal to the area of the fixing portion 332, and a piercing area 421 communicating with the piercing area 421 and having an area substantially greater than or equal to the supporting portion. 331 , the positioning area 422 of the hooking hole 42 extends toward the same first frame segment 211 .

Referring to Figure 19 and Figure 20, when the optical unit 4 is to be positioned on the frame unit 2, the fixing portion 331 of each hook block 33 is first pierced through the piercing area 421, and then the optical unit 4 faces opposite to the Moving in the direction of the extending direction of the positioning areas 422 , the fixing parts 332 are positioned in the corresponding positioning areas 422 , that is, the optical unit 4 can be positioned in the accommodating space 200 of the frame unit 2 . The perforations 41 of the optical unit 4 are elongated holes in this embodiment, which can respectively accommodate the fixing parts 32 when the optical unit 4 moves, so as to avoid the fixing parts 32 from being respectively passed through the The movement of the optical unit 4 is hindered when the hole 41 is perforated. Referring again to FIG. 17 , the steps of assembling the optical unit 4 can be completed by fastening each fastening component 31 disposed on the second frame segments 212 to the corresponding fixing component 32 .

In summary, the assembly of the optical unit 4 is carried out in the manner described in the first preferred embodiment to the fourth preferred embodiment of the present invention, without additionally using locking elements such as screws, rivets, etc. to fix the optical unit 4. The unit 4 therefore does not need to manually judge the position where the locking member should be locked, and the optical unit 4 can be assembled and positioned on the frame unit 2 simply and correctly, so the purpose of the present invention can indeed be achieved.

But the above are only preferred embodiments of the present invention, and should not limit the scope of the present invention with this, that is, all simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification, All still belong to the scope that the patent of the present invention covers.

Claims (10)

1. a kind of frame mechanism for optical device, is used to fix one in laminal optical unit, and the optical unit includes Multiple spaced perforation, the frame mechanism is included：

One frame unit, including a backboard, and a frame for being arranged at the backboard periphery, the backboard and the frame are common around going out One accommodation space for housing the optical unit；And

One fixed cell, including multiple to should optical unit punch position fixture, and multiple those fixtures of correspondence And with the buckling piece of a through hole, each fixture has a trip, and the trip has a central portion, and multiple is around the center Portion and can relative to tab portion from the central portion to internal condensation, the tab portion of the trip is condensed towards the central portion and can pass through this Through hole, the optical unit is positioned in the accommodation space；

Wherein, each buckling piece has a tool pliability and the bent sheet being connected on the frame, and one is connected to the bent sheet Assembling block, by those bent sheets bending can make those assembling blocks be fastened on corresponding fixture, the assembling of each buckling piece Block has a body, and one is formed at through hole on the body,

The frame has two to be respectively arranged at opposition side the first frame section of backboard two, and two are connected those first frames section homonymy respectively The second frame section at end, the length of the length more than those second frames section of those first frames section,

The fixed cell also includes multiple hook blocks that the backboard is arranged at intervals at along every 1 first frame section, and each hook block has one certainly The supporting part that the backboard is upwardly extended, and one be connected to the supporting part and the fixed part of a T fonts be collectively forming with the supporting part,

The optical unit also includes multiple hook apertured for corresponding to those hook blocks respectively, and each hook apertured has an area substantial Area more than or equal to the fixed part wears area, and one wears that area connects and area is substantially greater than or equal to the branch with this The positioning area of the area of support part.

2. frame mechanism as claimed in claim 1, wherein, there is the through hole large aperture portion, a diameter to be less than the large aperture The small-bore portion in portion, and one be located at shoulder between the large aperture portion and the small-bore portion, and each fixture also has one to connect The fixed column of the backboard is connected to, the trip is connected with the fixed column and is arranged in the small-bore portion of the through hole and is equipped in the through hole Shoulder.

3. frame mechanism as claimed in claim 1, wherein, there is every 1 second frame section a depression to be formed at towards the appearance respectively The fixing groove of the side between being empty, two opposite ends of the optical unit are in the fixing groove for stretch into corresponding those second frames section.

4. the frame mechanism as described in claim 1 or 3, wherein, those buckling pieces are arranged in those first frames section.

5. frame mechanism as claimed in claim 1, wherein, the frame unit has pliability, those first frames section or those Second frame section has an extension for being connected to the backboard respectively, and the one end from the extension away from the backboard houses toward this The clamping part that the direction in space extends, the optical unit can be located between those clamping parts and the backboard.

6. frame mechanism as claimed in claim 5, wherein, those buckling pieces are arranged at those first frames section or those second frames In the wherein frame section of section, those clamping parts are then arranged in another frame section of those first frames section or those second frames section.

7. frame mechanism as claimed in claim 1, those buckling pieces are arranged in those second frames section.

8. frame mechanism as claimed in claim 1, wherein, the optical device can be a backlight module.

9. frame mechanism as claimed in claim 8, wherein, the backlight module can be straight-down negative or side entering type.

10. frame mechanism as claimed in claim 1, wherein, those buckling pieces of the fixed cell may be provided at the backboard or The frame.