CN201126513Y - Panel fixing structure and fixing components used therefor - Google Patents

Abstract

The utility model relates to a plate fixed knot constructs and fixed subassembly that uses thereof, wherein plate fixed knot constructs including first plate, buckling parts, second plate and locking part, and buckling parts and locking part are the fixed subassembly that is used for fixed first plate and second plate promptly. The first plate is provided with a protruding fixing part, the second plate is provided with a locking hole, the fastening piece is assembled on the fixing part and used as a fixed basic component, the fastening piece penetrates through the second plate and then penetrates through the fastening piece, so that the fastening piece is screwed into the fastening piece and locked and fixed, and the second plate is tightly fixed on the fastening piece, therefore, the purpose of fixing the second plate on the first plate can be achieved by means of the fastening piece and the fastening piece.

Description

Panel fixing structure and fixing components used therefor

technical field

The utility model relates to a liquid crystal display device, in particular to a backlight module of the liquid crystal display device.

Background technique

Backlight modules are widely used in liquid crystal display devices, advertising billboards and other devices requiring light sources to provide flat display light sources required by such devices. Especially in recent years, the market demand for liquid crystal display devices has grown significantly. In order to meet the functional and appearance requirements of liquid crystal display devices, the designs of backlight modules used in liquid crystal display devices are also increasingly diversified.

Please refer to FIG. 1 and FIG. 2 . FIG. 1 and FIG. 2 are perspective views of the front and back of the conventional liquid crystal display module respectively. As shown in FIGS. 1 and 2 , the liquid crystal display module 90 generally includes a liquid crystal module 91 , a frame 92 and a backlight module 93 . The liquid crystal module 91 and the backlight module 93 are both arranged in the outer frame 92, and the backlight module 93 is arranged behind the liquid crystal module 91, and the backlight module 93 further includes a back plate 94, which is suitable for configuration printing circuit board (not shown in the figure). In the past, the printed circuit board was directly locked on the backboard 94, as shown in Figure 2: the backboard 94 has a plurality of studs 941, and each stud 941 is provided with a screw thread, and the printed circuit board is fixed by screws. (not shown in the figure) is locked on the stud 941 to achieve the purpose of fixing.

However, due to the high cost of machining threads in the studs 941, it is impossible to lay out studs 941 conforming to various PCB formats on the back plate 94, so when the format of the printed circuit board changes, it is necessary to make a new one. Therefore, whether it is laying more studs 941 to meet the printed circuit boards of various specifications, or making a new back plate 94 to meet the new printed circuit boards, these two methods cannot effectively reduce its Cost of production.

Contents of the invention

The utility model provides a board fixing structure and a fixing assembly used therefor, in order to solve the problem that the existing backlight module backplane cannot be used with various printed circuit board formats.

In order to achieve the above object, the technical scheme adopted by the utility model includes:

A fixed assembly, characterized in that: comprising:

A fastening piece has a fixing base, the fixing base has a fixing hole, and an extension arm is extended from the two sides of the fixing base, and each of the extension arms is formed with a first A positioning part and a second positioning part, wherein the first positioning part is located at the bottom end of the extension arm, and the second positioning part is located above the first positioning part, and There is a distance between the first positioning parts, and the fastening piece further has a first locking part and a second locking part, which are respectively formed on the extension arms on both sides of the fixing seat , and the first locking part and the second locking part are located on a horizontal plane with different heights, so that there is a locking gap between the first locking part and the second locking part , and the first locking portion and the second locking portion extend towards the inside of the extension arms on both sides of the fixing seat; and

A locking piece passes through the fixing hole and locks on the fastening piece.

In order to achieve the above object, the technical solution adopted by the utility model also includes:

A plate fixing structure, characterized in that: comprising:

A first plate, and the first plate has a protruding fixing part, and the fixing part has a through hole;

A fastening piece is arranged on the through hole and includes a fixing seat, and a pair of extension arms extend from both sides of the fixing seat, and the pair of extension arms extend into the and abut against the two sides of the through hole, and the pair of extension arms are respectively formed with a first positioning part and a second positioning part, wherein the first positioning part is located at The bottom end of the extension arm is located in the through hole at the same time, and the second positioning part is located above the first positioning part and outside the through hole. There is a distance between the first positioning parts;

a second board with a locking hole; and

A locking piece passes through the locking hole and is locked on the fastening piece.

Compared with the prior art, the utility model adopting the above-mentioned technical solution has the advantage that the panel fixing structure provided by the utility model and the fixing components used in the utility model can cooperate with printed circuit boards of different sizes or forms most importantly. board, by virtue of the design of the utility model, the combination of the printed circuit board and the backboard can be made more flexible, and the production cost is lower.

Description of drawings

FIG. 1 is a schematic front perspective view of an existing liquid crystal display module;

FIG. 2 is a three-dimensional schematic view of the back of an existing liquid crystal display module;

Fig. 3 is a three-dimensional exploded schematic view of an embodiment of the panel fixing structure of the present invention;

Fig. 4 is a combined cross-sectional schematic diagram of an embodiment of the panel fixing structure of the present invention;

Fig. 5 is a schematic perspective view of an embodiment of the fastener of the present invention.

Explanation of reference numerals: first plate 10; fixing part 11; through hole 12; second plate 20; locking hole 21; buckle 30; fixing seat 31; extension arm 32; 331; resisting surface 332; second positioning portion 34; blocking plate 341; stop surface 342; first locking portion 35; second locking portion 36; fixing hole 37; locking member 40; distance d1; locking gap d2 ;; LCD module 90; LCD module 91; outer frame 92; backlight module 93; back panel 94;

Detailed ways

In order to make the features of the present invention clearer, preferred embodiments of the present invention will be disclosed below, and the specific components and arrangements described are only for simplifying the description of the present invention, but they are not intended to limit the present invention.

Please refer to FIG. 3 , which is a three-dimensional exploded view of a panel fixing structure according to a preferred embodiment of the present invention. As shown in FIG. 3 : the panel fixing structure in this embodiment includes a first panel 10 , buckle 30, second plate 20 and lock 40, wherein the first plate 10 and the second plate 20 are simplified diagrams in FIG. In a preferred embodiment, the first board 10 is, for example, the backplane of a backlight module in a liquid crystal display, the second board 20 can be, for example, a printed circuit board, and the buckle 30 and the locking member 40 constitute a A fixing component for fixing the first panel 10 and the second panel 20 .

In addition, the first plate 10 has a protruding fixing portion 11, and a through hole 12 is formed on the fixing portion 11. In the embodiment where the first plate 10 is a back plate, the fixing portion 11 is on the back plate, that is The shape of a convex bract is formed, and there is at least one perforation on the convex bract. On the second plate 20, there is a locking hole 21 for allowing the locking member 40 to pass through. When the second plate 20 is an embodiment of a printed circuit board, the locking hole 21 is formed on the printed circuit board. Corners or places where no signal lines are laid on the printed circuit board.

The buckle 30 is assembled on the through hole 12 by pressing down with metal elasticity. As a component that can be used to fix the foundation, please refer to FIG. 5 first, which is a three-dimensional schematic diagram of an embodiment of the buckle of the present invention, as shown in the figure: The buckle 30 includes a fixing seat 31 with a fixing hole 37 on it, and a pair of extension arms 32 extend from two sides of the fixing seat 31, and extend into the through hole 12, and then abut against the two sides of the through hole 12. Next, in addition, a first positioning portion 33 and a second positioning portion 34 are respectively formed on the pair of extension arms 32, wherein the first positioning portion 33 extends toward the outside of the pair of extension arms 32 and is located at The bottom ends of the pair of extension arms 32 are located in the through hole 12 at the same time. In addition, the first positioning portion 33 further includes an inclined surface 331 and a resisting surface 332, wherein the inclined surface 331 faces the pair of extension arms. The surface of 32 extends to connect with the resisting surface 332 , and the resisting surface 332 faces in the direction of the second positioning portion 34 and is vertically connected with the surfaces of the pair of extension arms 32 .

The second positioning portion 34 is located above the first positioning portion 33 and outside the through hole 12, and has a distance d1 from the first positioning portion. In this embodiment, the distance d1 is equal to the hole wall of the through hole 12. The thickness, in other words, is also equal to the thickness of the first plate 10; in addition, the second positioning portion 34 includes a pair of blocking pieces 341, which are formed by bending outwards from the two sides of the pair of extension arms 32, and The pair of blocking pieces 341 respectively have a stop surface 342 facing in the direction of the first positioning portion 33 .

In addition, the buckle 30 further has a first locking portion 35 and a second locking portion 36, the first locking portion 35 and the second locking portion 36 cooperate with the locking member 40 to provide a lock A locking member, wherein the first locking portion 35 is formed on one of the pair of extension arms 32, and the second locking portion 36 is formed on the other of the pair of extension arms 32. On the one hand, in addition, the first locking portion 35 and the second locking portion 36 extend toward the inside of the pair of extension arms 32 and are located on horizontal planes with different heights, that is, on the pair of extension arms 32 The first locking portion 35 and the second locking portion 36 have different horizontal heights, so there is a locking gap d2 between the first locking portion 35 and the second locking portion 36 .

In its preferred embodiment, the locking member 40 is, for example, a screw. In this embodiment, the locking gap d2 is equal to the pitch of the thread bud on the screw. When the locking member 40 is locked on the buckle 30, it is located at The first locking portion 35 and the second locking portion 36 with different levels can be used to pinch the locking element 40 , that is, the effect of internal thread, so that the locking element 40 can be screwed into and locked on the buckle element 30 .

In order to explain more clearly how the fixing assembly of the present utility model fixes the first plate and the second plate, please refer to Figure 4, which is a combined cross-sectional schematic diagram of an embodiment of the plate fixing structure of the present utility model, as shown in the figure: When the fixing assembly fixes the second plate 20 on the first plate 10 (that is, when the printed circuit board is fixed on the backplane of the backlight module), firstly, the buckle 30 is pressed down by metal elasticity and assembled in the through hole. 12, by virtue of the slope 331 of the first positioning portion 33, the pair of extension arms 32 can be easily inserted into the through hole 12, when the stop surface 342 on the pair of blocking pieces 341 and the fixing portion 11 When the surface of the fixing part 11 touches, it means that the fastening part 30 has been positioned with the fixing part 11 on the first board part 10. On the inner surface of the fixing part 11 , in this way, the first positioning part 33 and the second positioning part 34 are clamped on the fixing part 11 to achieve the purpose of fixing the fastening part 30 on the first board part 10 .

Next, the locking member 40 first passes through the locking hole 21 on the second plate 20, and then passes through the fixing hole 37, so that the locking member 40 is screwed into the first locking part 35 and the second locking part 36, And be locked and fixed, so that the second plate 20 is tightly fixed on the fastening piece 30, therefore, by means of the fastening piece 30 and the locking piece 40, the second plate 20 can be fixed on the first Purpose on board 10.

Hereinafter, how to apply the utility model to fix the circuit board of the liquid crystal display and how to use the least assembly cost to improve the competitiveness of the product will be introduced. First of all, a plurality of fixing parts 11, that is, convex buds, are pre-set in the backplane of the backlight module on the liquid crystal display, and then according to the size or position of the printed circuit board to be fixed, the corresponding fixing parts 11 are combined with buckles. Connector 30, and then use the locking member 40 to lock the printed circuit board on the fastening member 30, so that the locking of the printed circuit board on the backboard is completed by virtue of the locking member 40 and the fastening member 30 It is required that by using this method, there is no need to provide internal threads on each convex bud for the locking of the fasteners. Since the production cost of providing internal threads is omitted, the purpose of reducing production costs can be achieved.

Therefore, the board fixing structure provided by the utility model and the fixing components used therein can be used with printed circuit boards of different sizes or forms most importantly. With the design of the utility model, the printed circuit board and the back The way the boards are joined is more flexible and less expensive to produce.

The above description is only illustrative, rather than restrictive, of the present utility model. Those of ordinary skill in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined in the claims. But all will fall within the limitable scope of the claims of the present utility model.

Claims (12)

1. fixation kit is characterized in that: comprising:

One fastener, has a holder, has a fixed orifice on the described holder, and respectively be extended with an adjutage from two sides of described holder, and be formed with one first location division and one second location division on each described adjutage respectively, wherein said first location division is the bottom that is positioned at described adjutage, and described second location division is the top that is positioned at described first location division, and and has a spacing between described first location division, and described fastener has more one first locking part and one second locking part, be to be respectively formed on the adjutage of described holder two sides, and described first locking part and described second locking part are positioned on the surface level of differing heights, make between described first locking part and described second locking part to have a sealed gap, and described first locking part and described second locking part are to extend towards the adjutage of described holder two sides is inboard; And

One locking part is to wear described fixed orifice and be locked together on the described fastener.

2. fixation kit according to claim 1 is characterized in that: described first location division is to extend towards the adjutage outside of described holder two sides.

3. fixedly knot spare according to claim 2, it is characterized in that: described first location division includes an inclined-plane and and keeps out face, described inclined-plane is to extend to the described face of keeping out to the surface of described adjutage to be connected, and the described face of keeping out is towards in the described second location division direction, and is connected with the Surface Vertical of described adjutage.

4. fixation kit according to claim 1, it is characterized in that: described second location division is to include two catch, being outwards to be bent to form from the dual side-edge of described adjutage respectively, and having a stop surface respectively at two catch, is towards the direction in described first location division.

5. fixation kit according to claim 1 is characterized in that: described locking part is a screw.

6. plate fixed sturcture is characterized in that: comprising:

One first plate, and have an outstanding fixed part on described first plate, and have a through hole on the described fixed part;

One fastener, be arranged on the described through hole and comprise a holder, and be extended with a pair of adjutage from described holder two sides, and described a pair of adjutage is to stretch in described through hole, and with two side butts of described through hole, and be formed with one first location division and one second location division on the described a pair of adjutage respectively, wherein said first location division is the bottom that is positioned at described adjutage, and be positioned at described through hole simultaneously, and described second location division is the top that is positioned at described first location division, and be positioned at outside the described through hole, and and described first location division between have a spacing;

One second plate has one and locks the hole on it; And

One locking part runs through described and locks the hole and be locked together on the described fastener.

7. plate fixed sturcture according to claim 6 is characterized in that: described spacing is the pore wall thickness that equals described through hole.

8. plate fixed sturcture according to claim 6 is characterized in that: described first location division is to extend towards the described a pair of adjutage outside.

9. plate fixed sturcture according to claim 8, it is characterized in that: described first location division includes an inclined-plane and and keeps out face, described inclined-plane is that the surface from described a pair of adjutage extends to the described face of keeping out and is connected, and the described face of keeping out is towards in the described second location division direction, and is connected with the Surface Vertical of described a pair of adjutage.

10. plate fixed sturcture according to claim 6, it is characterized in that: described second location division is to include a pair of catch, be outwards to be bent to form from the dual side-edge of described a pair of adjutage respectively, and having a stop surface respectively at described a pair of catch, is towards the direction in described first location division.

11. plate fixed sturcture according to claim 6, it is characterized in that: described fastener has more one first locking part and one second locking part, be to be respectively formed on the described a pair of adjutage, and described first locking part and described second locking part are positioned on the surface level of differing heights, make between described first locking part and described second locking part to have a sealed gap.

12. plate fixed sturcture according to claim 11 is characterized in that: described first locking part and described second locking part are towards the inboard extension of described a pair of adjutage.

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