KR101081546B1 - A case for display device with improved waterproof proprety - Google Patents

Abstract

PURPOSE: A case for a display device with improved waterproof property is provided to completely seclude the inflow of moisture or water. CONSTITUTION: A protection glass is installed on the front surface of a front cover(10). A rear cover(20) offers space for accepting a display panel(30). A waterproof packing is formed on a connection part of the rear cover and the front cover. A waterproof inner cover and outer cover are contacted with the waterproof packing from the inside and the outside of a case(100).

Description

A case for display device with improved waterproof proprety}

The present invention relates to a display case having a waterproof structure, and more particularly, to provide a display case having an improved waterproof function by improving the structure of the waterproof packing.

Recently, with the spread of OA devices and portable small TVs, LCD displays, electro-luminescence (EL) devices, plasma display panels (PDPs), and fluorescent display tubes (CRTs) have been used instead of CRTs. VFD) and the like have been put to practical use.

Among them, LCD panels using liquid crystal display elements are lightweight, thin, low-cost, and low power consumption, and have good compatibility with integrated circuits.They can be used in addition to the display of LAT POP COMPUTER or Pocket COMPUTER. Its use is rapidly expanding for color TV images.

Various displays using such LCD panels protect the LCD panel by forming a case which forms a whole appearance by combining the back cover with the LCD panel in the rear, and the front cover in the front, which is joined to each other by the fastening means. do.

However, in the conventional display case, when the front cover and the rear cover are coupled to each other by using a fastening means, a minute gap between the front cover and the rear cover cannot be identified.

Accordingly, in the related art, when a large amount of moisture is generated while the ups and downs of the ambient temperature change are severely changed, the moisture is introduced into the LCD panel through the gap, causing a malfunction of the LCD panel.

Therefore, recently, a packing member, such as an O-ring or sealing gasket made of rubber or silicone, or a silicone is applied to a joint or a gap between the coupling portion of the front cover and the rear cover, which forms the entire exterior case of the display, or is coated with silicone. The technology for preventing the ingress of water or moisture is widely developed.

However, the method of inserting the waterproof packing such as O-ring or sealing gasket has a problem in that the installation position has a lot of errors in the installation position depending on the working method and working skill, and the method of applying silicon is simple but the method of disassembling the case In the case of removing the silicon at the time of disassembly and reassembly there is a problem that has to apply the silicon every time.

On the other hand, Republic of Korea Patent Publication No. 10-0985530, as shown in Figure 1, while the sealing gasket 150 is interposed between the front window cover 110 and the rear cover 130, the sealing gasket 150 The first protrusion sealing part 151 is formed on the outer side of the rear cover 130 is fitted into the sealing groove of the rear cover 130, the gap portion in which the middle base 120 and the rear cover 130 abut in the longitudinal direction of the sealing gasket 150 The structure waterproof by the 2nd protrusion sealing part 152 mounted in the is disclosed.

However, in the prior art disclosed in the above publication, the sealing gasket forming the waterproof packing is interposed between the front cover and the rear cover, so that the front cover and the rear cover are each packed in contact with one side of the sealing gasket. There is a problem that can not completely block the inflow of water or moisture.

This, in turn, causes moisture or water to flow into the display case, causing malfunction of the LCD panel, leading to a product failure or a fatal defect that shortens the product life.

Republic of Korea Patent Publication No. 10-0985530 (2010.10.05.Publication) Republic of Korea Patent Registration No. 10-0815612 (2008.03.21.Publication) Registered Utility Model Registration No. 20-0411046 (Publication on March 15, 2006)

The present invention has been made in view of the above problems, by increasing the contact area of the case of the coupling portion where the front cover and the rear cover is combined with a single packing member to improve the overall waterproof ability of the waterproof display The purpose is to provide a case.

In addition, an object of the present invention is to provide a display case having an improved waterproof function that can facilitate assembly and disassembly of a packing member to the case while improving waterproofing ability.

The display case with improved waterproof function according to the present invention for solving the above problems consists of the following solving means.

A case including a front cover having a protective glass installed on a front surface thereof and a rear cover fastened with the front cover to provide a space for accommodating a display panel therein; The upper fitting groove into which the side portion of the front cover is fitted and the lower fitting groove into which the side portion of the rear cover is fitted are formed on the coupling portion of the front cover and the rear cover, respectively, and both sides of each side of the front cover and the rear cover. Waterproof packing to double wrap while wrapping; A waterproof inner cover and an outer cover installed in contact with the waterproof packing inside and outside the case; And fastening screws fastened while penetrating the side portions of the front and rear covers, the waterproof packing, the waterproof inner and outer covers, respectively, to fix the waterproof packing to the case side.

Here, each side portion of the front and rear cover is composed of a side straight portion bent vertically at the surface forming the front or rear of the case, and a side step portion bent stepwise in the inward direction of the case at the side straight portion, The side step portion is characterized in that the fitting groove of the waterproof packing.

And, both sides of the waterproof packing is formed in the inclined inclined up and down relative to the horizontal center in the longitudinal direction of the waterproof packing, one surface in contact with the waterproof packing of the waterproof inner and outer cover horizontal in the longitudinal direction of each cover It is characterized in that the convex portion is inclined up and down relative to the center, the concave portion and the convex portion is in surface contact with each other.

In addition, the through hole through which the fastening screw penetrates in the waterproof outer cover, characterized in that the fastening of the head of the fastening screw is accommodated.

Here, the waterproof packing is characterized in that made of silicon or urethane material.

The display case with improved waterproof function according to the present invention exhibits the following effects.

First, the waterproof packing is completely prevented from inflow of moisture or water by carrying out double packing that simultaneously contacts the coupling part of the front cover and the rear cover on the inner and outer surfaces of the case with one waterproof packing. It is effective.

Second, by attaching both sides of the waterproof packing exposed to the inner and outer surfaces of the case with the waterproof inner and outer covers, respectively, there is an advantage in that the waterproof seal can be prevented from being deformed or damaged to extend the service life of the waterproof packing. .

Third, the waterproof packing is connected to the four parts of the front and rear cover and the waterproof inner and outer cover forming the case, there is an advantage that the waterproof ability is further improved because the contact area with the case is very large.

Fourth, the waterproof packing is fastened by screwing the case through the waterproof inner and outer covers, and thus the assembly and disassembly of the case is very easy. In particular, the waterproof inner and outer covers which are in contact with the inner and outer surfaces of the case of the waterproof packing are By pressing close to the packing member by the screw fastening force has the effect of further improving the waterproof ability.

Fifth, the waterproof outer cover is assembled in a straight state without a step and the side of the case has the advantage that the waterproof ability is improved without impairing the appearance appearance aesthetic quality.

1 is a cross-sectional view showing a display case having a waterproof structure according to the prior art,
2 is an exploded side view of a display case having an improved waterproof function according to an embodiment of the present invention;
3 is a cross-sectional view of a plan view and a 'AA' line in a plan view of an improved waterproof display case according to an embodiment of the present invention,
Figure 4 is an enlarged view showing an enlarged 'B' portion of the installation state of the waterproof packing installed in the connection portion of the front cover and the rear cover shown in Figure 3,
5 is a perspective view illustrating a state in which the waterproof packing, the waterproof front and the rear cover illustrated in FIG. 4 are disassembled.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the following description, "front", "back", "outer", "inside", "inside", "outside," horizontal ", and" length direction "and corresponding terms refer to the direction and case shown in the drawings. It is a standard.

In addition, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail, focusing on the parts necessary to understand the structure and effect according to the present invention.

2 is an exploded side view of a display case having a waterproof function according to an embodiment of the present invention, Figure 3 is a 'A-A' of a plan view and a plan view of a display case having an improved waterproof function according to an embodiment of the present invention; It is a cut section.

As shown in Figures 2 and 3, the display case 100 with improved waterproof ability according to the present invention is coupled to the front cover 10, the front cover 10 is provided with a protective glass 20 on the front The rear cover 20 provides a space for accommodating the display panel 30, such as an LCD panel therein, and the joint portion of the front cover 10 and the rear cover 20 is provided with a joint or a gap between the joint portions of the moisture or water. It includes a waterproof packing 50 to prevent inflow, a waterproof inner cover 60 and a waterproof outer cover 70 installed in contact with the waterproof packing 50 at the inside and the outside of the case 100.

A printed circuit in which various components for controlling the driving of the display panel 30 and the display panel 30 are formed in the case 10, and the fixing bracket 40 for fixing the display panel 30 to the case 10 is mounted therein. The substrate 41 and the like are embedded.

The front cover 10 and the rear cover 20 are combined with each other to form the overall appearance of the case 100, the display panel 30 to the front cover 10 so that the screen of the display panel 30 can be seen from the outside. Except that the opening 12 having a size corresponding to is formed on the surface forming the front of the case 100, the front and rear cover 10, 20 is formed in the same structure as a whole.

The front and rear covers 10 and 20 are made of a metal material such as aluminum or stainless steel (SUS) which is strong in corrosion resistance and light in weight.

The front and rear covers 10 and 20 are coupled to each other to provide a case 100 in which the inside of the rectangular parallelepiped shape is empty, and is vertically bent in all directions from a surface forming the front or rear side of the case 100 to cover each cover 10. Side portions 11 and 21 constituting the side wall of the (20) is provided. At this time, the side parts 11 and 21 of each cover 10 and 20 are coupled to each other up and down to provide a space in which various components can be built in the case 100.

In detail, the side portions 11 and 21 are vertically bent from the surface constituting the front or rear surface of the case 100 and have side length portions 11a and 21a having a predetermined length in a straight line and the side straight portions 11a. At the end of the (21a) is bent vertically in the inner direction of the case 100 and again bent vertically in the opposite direction to the side straight portion (11a) (21a) stepped side to enter a predetermined length into the case 100 as a whole It consists of step portions 11b and 21b (see Fig. 4).

The side step portions 11b and 21b provide a space that can be installed without a step from the outer side of the waterproof outer cover case to be described later.

The waterproof packing 50 is installed long so that the front and rear covers 10, 20 are distributed one by one on each side of the coupling portion to which the coupling portion is coupled to each other.

Hereinafter will be described in detail a structure for packing the seams or gaps of the coupling portion of the front cover 10 and the rear cover 20 by the waterproof packing 50 forming the gist of the present invention.

FIG. 4 is an enlarged view illustrating an installation state of a waterproof packing installed at a connection portion of the front cover and the rear cover shown in FIG. 3, and FIG. 5 is an exploded view of the waterproof packing, waterproof front and rear covers shown in FIG. It is a perspective view which shows the state.

4 and 5, the waterproof packing 50 according to an embodiment of the present invention has a shape and structure that is vertically symmetrical with respect to the longitudinal horizontal center.

The upper portion of the waterproof packing 50 is formed with an upper fitting groove 51 made of an inner space of the "U" shape, the side step portion 11a of the front cover 10 is inserted from the top to the bottom, A lower fitting groove 52 is formed of an inner space of a “∩” type in which the side step portion 11b of the rear cover 20 is fitted from below.

As a result, a side step portion of the front cover 10 in which the pair of upper fitting walls 51a forming the inner space of the upper fitting groove 51 in the waterproof packing 50 is fitted into the upper fitting groove 51 ( A pair of lower fitting walls 52a which are respectively located on the outer side and the inner side of 11a) and performs double packing contacting both sides of the side step portions 11a and similarly form an inner space of the lower fitting groove 52. The packing is also performed in duplicate while also being in contact with both sides of the side step portions 21a while being located on the outside and the inside of the side step portions 21a of the rear cover 20 fitted in the lower fitting groove 52. .

Here, the waterproof packing 50 is made of a strong elastic material such as silicone or urethane.

As described above, the present invention is a double waterproof while simultaneously contacting the coupling portion of the front cover 10 and the rear cover 20 forming the case 100 in the inner surface and the outer surface of the case 100 as one waterproof packing 50 By performing the packing, it is possible to block the inflow of moisture or water in a double, there is an advantage that the waterproof ability is greatly improved compared to the conventional.

 Meanwhile, the waterproof inner cover 60 and the waterproof outer cover 70 which are installed to be in surface contact with the inner and outer sides of the case 100 in a state where the waterproof packing 50 is combined with the front and rear covers 10 and 20, respectively. ) Is installed.

The waterproof inner and outer covers 60 and 70 are made of thin rectangular parallelepiped plates, the lengths and heights of which are the same as the lengths and heights of the watertight packings 50 so as to contact the watertight packings 50 over the entire area. It has a size that can be, and the thickness is stepped with the side straight portions (11a) 921a of the front and rear covers (10) and (20) when the waterproof outer cover (70) is in close contact with the waterproof packing (50). It is made of thickness to achieve a straight state without.

The waterproof inner and outer covers 60 and 70 are made of a metal, such as aluminum or stainless, which is the same material as the front and rear covers 10 and 20.

The waterproof inner and outer covers 60 and 70 have a structure in which the waterproof packing 50 doublely packs both sides of each cover 10 and 20 between the front cover 10 and the rear cover 20. By being exposed to the inside and outside of each cover 10, 20 by preventing the risk of breakage, damage and separation in advance, while preventing the deformation of the waterproof packing 50 made of an elastic material such as silicone or urethane It is possible to prevent the deterioration of the sealing function due to the deformation of the waterproof seal 50 afterwards.

  In addition, each of the front and rear covers 10 and 20 may be provided on both sides of the inner surface of each of the fitting walls 51a and 52a to which the waterproof packing 50 forms the internal space of each of the fitting grooves 51 and 52. In contact with the side surface portion 10, the outer side of each of the fitting walls (51a, 52a) is in contact with the waterproof inner and outer covers 50, 60, forming a case of the waterproof packing 50 as a whole Since it is connected to the surface and the four layers in contact with the layer there is an advantage that the waterproof ability is significantly improved compared to the conventional.

Meanwhile, the waterproof packing 50, the side step portions 11b and 21b of the front and rear covers 10 and 20, and the waterproof inner and outer covers 60 and 70 that are in contact with each other overlap each other. A plurality of screw through-holes 90 are formed up and down so that the fastening screw 80 can penetrate horizontally in position, and are integrally coupled to each other by the fastening screw 80.

At this time, a female screw portion is formed in the inner circumferential surface of the screw through hole 90 of the waterproof inner cover 60 to be screwed with the fastening screw 80, and the screw screw hole 90 of the waterproof outer cover 70 is fastened to the screw through hole 90. A seating surface is formed in which the head of 80 can be completely received inside the hole.

In this way, by the fastening force of the fastening screw 80, the waterproof inner and outer cover 60, 70 installed on both sides of the waterproof packing 50 is pressed against the waterproof packing 50, respectively, and at the same time, waterproof packing 50 is pressed back to the side step portions 11b and 21b of the front and rear covers 10 and 20, thereby greatly improving the adhesion between the members as a whole and further improving the waterproofing ability.

In particular, since the worker is assembled and disassembled from the outside of the case by a screw method that is commonly used by the worker to couple the waterproof packing to the case, workability for assembling and disassembling the entire case can be greatly improved.

On the other hand, the waterproof packing 50 and the waterproof inner and outer cover 60, 70 has a contact structure to increase the surface contact between each other and at the same time the installation position can be accurately guided when assembling each other between these members. .

To this end, both side surfaces of the waterproof packing 50 to which the waterproof inner and outer covers 60 and 70 are in contact are vertically inclined concave portions recessed up and down relative to the horizontal center in the longitudinal direction of the waterproof packing 50. 53 is formed.

In addition, one surface of the waterproof inner and outer covers 60 and 70 in contact with the waterproof packing 50 is inclined upward and downward in a convex manner to protrude upward and downward relative to the horizontal center in the longitudinal direction of each cover 60 or 70. Convex portions 61 and 71 are formed.

At this time, each of the concave portion 53 and the convex portions 61 and 71 is in surface contact while having a shape that is matched with each other when the waterproof packing 50 and the waterproof inner and outer covers 60 and 70 are combined. .

As such, since the waterproof inner and outer covers 60 and 70 and the waterproof packing 50 make surface contact with each other by the inclined structure, the contact area is increased, so that the airtightness is further improved, in particular, between each other. Just by centering the concave portion 53 and the convex portion 61, 71 at the time of coupling, the waterproof inner and outer covers 60, 70 and the waterproof packing 50 are precisely installed at the same position. Since the assembly is very easy, the overall workability is greatly improved.

As a result, the waterproof packing 50 according to the best embodiment of the present invention is formed in the shape of "X" as a whole, the upper and lower fitting groove 51 (centering around the waterproof packing 50 having such a structure) ( 52 is fitted with side step portions 11b and 21b of the front and rear covers 10 and 20, and on the right and left side, the watertight inner side has convex portions 61 and 71 to mate with the recess portion 53; While the outer cover 60, 70 is in close contact with the fastening screw (80) integrally has a structure that is coupled smoothly without the step and the surface forming the case.

Furthermore, the waterproof packing and the waterproof inner and outer covers 60 and 70 coupled thereto are formed in a shape and a structure that are vertically symmetrical with respect to the horizontal center in the longitudinal direction thereof, so that they can be installed without limitation in the vertical direction during assembly. It is made of a structure that improves the assembly.

Hereinafter, a method of assembling and disassembling the display case having the improved waterproof function according to an embodiment of the present invention will be described briefly.

First, the waterproof inner cover 60 is fixed between the front cover 10 and the rear cover 20 while the front cover 10 and the rear cover 20 are installed to face each other.

Next, the upper and lower fitting grooves of the "X" shaped waterproof packing 50 are inserted into the side steps of the front and rear covers 10 and 20.

Then, the waterproof outer cover 70 is brought into contact with the outer side of the waterproof packing 50.

Finally, a plurality of through holes respectively provided in the side step portions 11a, 21a and the waterproof outer cover 70 of the waterproof inner cover 60, the waterproof packing 50, the front and rear covers 10, 20, respectively. Assembly is completed by fastening the screw 80 through the fastening screw 80 to the 90.

On the other hand, the disassembly operation of the display case proceeds in the reverse order of the assembly method.

 In the foregoing detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

10: front cover 11: side portion of the front cover
11a: straight side of the front cover 11b: side step of the front cover
20: rear cover 21a: straight side of the rear cover
21b: side step of the rear cover 50: waterproof packing
51: upper fitting groove 51a: upper fitting wall
52: lower fitting groove 52a: lower fitting wall
53: recess 60: waterproof inner cover
61: convex portion of the waterproof inner cover 70: waterproof outer cover
71: convex portion of the waterproof outer cover 80: fastening screw
90: through hole

Claims (5)

A case including a front cover having a protective glass installed on a front surface thereof and a rear cover fastened with the front cover to provide a space for accommodating a display panel therein;
The upper fitting groove into which the side portion of the front cover is fitted and the lower fitting groove into which the side portion of the rear cover is fitted are formed on the coupling portion of the front cover and the rear cover, respectively, and both sides of each side of the front cover and the rear cover. Waterproof packing to double wrap while wrapping;
A waterproof inner cover and an outer cover installed in contact with the waterproof packing inside and outside the case; And
And a fastening screw fastened while penetrating through the side portions of the front and rear covers, the waterproof packing, the waterproof inner and outer covers, respectively, to fix the waterproof packing to the case side.
The method of claim 1, wherein each side portion of the front and rear cover is a side straight portion bent vertically in the surface forming the front or rear of the case, and the side step bent stepwise in the inner direction of the case from the side straight portion The display case of claim 1, wherein the side step portion is fitted into the fitting groove of the waterproof packing.
The cover of claim 1 or 2, wherein both sides of the waterproof packing are formed with a recess inclined up and down based on a horizontal center in the longitudinal direction of the waterproof packing, and each cover is in contact with the waterproof packing of the waterproof inner and outer covers. A convex portion that is inclined up and down based on a horizontal center in the longitudinal direction of is formed, wherein the concave portion and the convex portion are in contact with each other to form a surface-improved display case, characterized in that.
The display case according to claim 3, wherein the head of the fastening screw is fastened to the through hole through which the fastening screw passes through the waterproof outer cover.
The display case of claim 3, wherein the waterproof packing is made of silicon or urethane.

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