KR102301943B1 - External wall-mounted advertising display device - Google Patents

Abstract

The present invention relates to an external wall-mounted advertising display device and, more specifically, to an external wall-mounted advertising display device, which rapidly discharges heat during an operation of an advertising display panel installed at an external wall of a building for providing guide or advertising phrases or images to the outside to reduce thermal stress so that performance reduction and loss of the display panel may be prevented, and reduces corrosion even for long time use by minimizing humidity and adhesion of foreign materials in a state in which it is exposed to outdoor air. The external wall-mounted advertising display device comprises: a display panel for screen output operated according to applied power and signal; a fixed frame fixed to an external wall of a building or a fixed support; a variable frame coupled with the display panel and variably coupled with the fixed frame; a radiation fin connected with the display panel to receive heat generated during an operation of the display panel; a connection arm for connecting the fixed frame with the variable frame; a displacement module provided at the connection arm to move the variable frame in a direction spaced apart from the fixed frame by pressure applied to liquid for generating inflated pressure by heat from the radiation fin; a recovering module for coupling the variable frame with the connection arm, to guide moving operation of the variable frame when the variable frame is moved by the displacement module, and to recover the variable frame to an original location when the pressure applied to the liquid for generating the pressure is released; and anti-rust layers formed at the fixed frame, the variable frame, and the connection arm to protect the display device from humidity and foreign materials.

Description

External wall-mounted advertising display device

The present invention relates to an exterior wall-mounted display device for advertisement, and more particularly, a display panel for advertisement installed on an exterior wall of a building to provide guidance or promotional text or images rapidly dissipates heat generated during operation to the outside to reduce thermal stress. The present invention relates to an exterior wall-mounted display device for advertising, which can reduce the performance degradation and damage of the display panel and minimize the adhesion of moisture and foreign substances when exposed to the outside air, thereby reducing the risk of corrosion even after long-term use.

In general, on the exterior wall of a building, an advertisement signboard containing the name and contact information of the company or business resident in the building is placed. Since the size, shape, and color of the signboards preferred by each company or establishment are different, a plurality of irregular signboards are arranged on the exterior wall of the building, giving the appearance of a building messy, and there is also a problem that it is difficult for the user to check.

In particular, the conventional signboard for advertisement is difficult to use for advertisement or publicity because the amount of information that can be described is limited as described above, and is used as a simple guide board.

Therefore, in addition to the use of a simple guide board, a technology capable of displaying various guide characters, photos, and pictures has been proposed. As a generic name, it is possible to provide consumers with a relatively large amount of information by repeatedly displaying pre-photographed images or images to the outside, mainly based on display technologies such as high-brightness LCD, LED, or PDP.

However, such a DID has a limit in the amount of information displayed externally according to the size, aspect ratio, and brightness of the digital display screen. There is a limit to the amount of information available.

At this time, there is a method of increasing the brightness of the display screen in order to increase visibility during the day when the illumination is high. However, when the brightness of the screen is increased, heat generated from the backlight unit constituting the display is also increased, and the increased heat is transferred to the display panel, such as deterioration of the display panel. There was a problem of deterioration of characteristics and occurrence of failures due to thermal stress such as shortening of lifespan or damage of display panels due to the occurrence of problems.

Therefore, there is a need for a technology capable of increasing the screen brightness of the display panel to increase advertising and publicity effects to consumers, and at the same time dissipating heat generated from the display panel and the backlight unit to the outside to protect the display panel and the backlight unit.

In addition, since it is installed in an exposed state on the outer wall of the building, it is necessary to reduce the concern about corrosion due to foreign substances and moisture contained in the air. There is a problem in that the problem of corrosion during use increases.

Republic of Korea Patent No. 10-1287025 Republic of Korea Patent No. 10-1243112

The present invention has been proposed to solve the above problems, and it is installed on the exterior wall of a building or a fixed post to display a user's desired text, picture, photo, etc., An object of the present invention is to provide an exterior wall-mounted display device for advertisements that minimizes deterioration of characteristics and occurrence of failures.

In addition, the present invention can extend the service life by reducing the concern about corrosion caused by moisture and foreign substances contained in the air when exposed to the outside, and reduce the cost of maintenance by minimizing damage and damage caused by corrosion. An object of the present invention is to provide a display device for an external wall-mounted advertisement that can be reduced.

In order to achieve the above object, the present invention

a display panel for outputting a screen operated by the applied power and signal;

a fixed frame fixed to the exterior wall of a building or fixed posts;

a variable frame to which the display panel is coupled and which is displaceably coupled to the fixed frame;

a heat dissipation fin connected to the display panel to receive heat generated during operation of the display panel;

a connecting arm connecting the fixed frame and the variable frame;

a displacement module provided on the connection arm to move the variable frame in a direction away from the fixed frame by the pressure acting on the liquid for pressure generation expanded by the heat transferred from the heat dissipation fins;

coupling the variable frame to the connecting arm, guiding the movement of the variable frame when the variable frame is moved by the displacement module, and returning the variable frame to its original position when the pressure acting on the pressure generating liquid is released return module;

It is characterized in that it comprises a; rust-preventive layer formed on the fixed frame, the variable frame, and the connecting arm, respectively, to protect it from moisture and foreign substances.

In addition, the rust prevention layer is formed by applying a rust prevention solution obtained by emulsifying PEPE (perfluorinated polyether) oil to O/W (oil/water phase) on the outer surfaces of the fixed frame, the variable frame and the connecting arm, A mixed solution is prepared by mixing PEPE oil and PEO-b-PS (poly(ethylene oxide)-polystyrene) in a weight ratio of 1:1 to 1.5:1, and 5 to 10 parts by weight of the mixed solution with respect to 100 parts by weight of water. It is characterized in that it was prepared by dissolving it by pouring it into parts.

In addition, the displacement module includes a body disposed inside the connection arm and having an internal accommodating space, a case disposed in the accommodating space of the body, and a case having an arranging space therein, and an elastic material partitioning the arranging space. and a pressure generating member including a liquid for pressure generation filled on either side of the arrangement space partitioned by the pair of spaces by the partition membrane, and the other empty side of the arrangement space partitioned by the pair of spaces a moving plate disposed in a doedoe coupled to the partition film, a rack gear extending in the longitudinal direction, one end connected to the moving plate, and the other end exposed to the outside of the case, a pinion gear engaged with the rack gear, and a length; a movable post extending in the direction, one end rotatably coupled to the connection arm and the other end disposed toward the variable frame side, the cross-section being inclined to one side, and axially coupled to the pinion gear; A corresponding inclined surface disposed in contact with the inclined surface formed on the movable post is formed, and the other end includes a fixed post coupled to the variable frame.

The present invention made as described above has the effect of extending the service life of the display panel by minimizing the deterioration of characteristics and the occurrence of failure due to thermal stress during operation,

In addition, the present invention has the effect of reducing the cost of maintenance by solving the problem of corrosion due to moisture and foreign substances contained in the air in a state exposed to the outside at all times to increase the service life and reduce the concern about corrosion.

1 is an exemplary view showing an exterior wall-mounted display device for advertisement according to the present invention.
2 is an exploded view illustrating a part of an exterior wall-mounted advertisement display device according to the present invention.
3 is an exemplary view showing a displacement module constituting the present invention.
4 and 5 are exemplary views showing the operating state of the displacement module constituting the present invention, respectively.
6 is an exemplary view showing the operating state of the pressure generating member constituting the present invention.
7 and 8 are exemplary views showing the operation state of the displacement module and the return module of the present invention, respectively, and the flow of air resulting therefrom;

Hereinafter, in addition to the above objects, other objects and features of the present invention will become apparent through the description of the embodiments with reference to the accompanying drawings.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the display device for an exterior wall-mounted advertisement according to the present invention will be described.

First, as shown in Figs. 1 and 2, the display device 1 for an exterior wall-mounted advertisement according to the present invention,

A display panel 10 for screen output operated by the applied power and signal;

A fixed frame (20) fixed to the outer wall of the building or a fixed post;

a variable frame 30 to which the display panel 10 is coupled and displaceably coupled to the fixed frame 20;

a heat dissipation fin 40 connected to the display panel 10 to receive heat generated during operation of the display panel;

a connecting arm 50 connecting the fixed frame 20 and the variable frame 30;

It is provided in the connection arm 50 and moves in a direction to separate the variable frame 30 from the fixed frame 20 by the pressure acting on the liquid for pressure generating expanded by the heat transferred from the heat dissipation fin 40 . a displacement module 60,

The variable frame 30 is coupled to the connecting arm 50, but when the variable frame 30 is moved by the displacement module 60, it guides the movement of the variable frame and acts on the pressure generating liquid. a return module 70 for returning the variable frame 30 to its original position when the pressure is released; and

It is characterized in that it is formed on the fixed frame 20, the variable frame 30, and the connecting arm 50, respectively, and includes a rust prevention layer 80 for protecting from moisture and foreign substances.

The display panel 10 displays an image or video while operating by the applied power and signal, and uses a flat display panel such as LCD, LED, PDP, etc., and at this time, a control module for controlling the operation of each display panel; A cable for supplying power, a terminal to which an image or an external storage device storing an image is coupled, and the like are further provided.

Since the configuration and operation relationship of the display panel 10 are well known, detailed illustration and description thereof will be omitted.

In addition, the type and size of the display panel 10 of the present invention can be changed according to the environment in which it is installed, and is not limited to the illustrated proportions.

The fixed frame 20 is installed on an object for installing a display panel, such as an outer wall of a building or a fixed pole, to support the variable frame 30 to be described later.

The fixed frame 20 can be variously changed according to the installation position and the load of the display panel, and is not limited to the shape shown in the drawings, of course.

The variable frame 30 is for protecting the display panel 10 , and the display panel 10 is coupled thereto.

Here, the variable frame 30 can be changed in size to correspond to the size of the display panel, and is formed of a metal with strong corrosion resistance in order to prevent corrosion by moisture and foreign substances, particularly moisture, when exposed to the outside. It is preferable that, for example, it is formed using aluminum or an aluminum alloy, which is inexpensive, easy to form, and has high thermal conductivity.

In particular, aluminum or aluminum alloy having high thermal conductivity discharges heat generated during operation of the display panel to the outside, thereby minimizing damage to the display panel continuously operating for a long time by heat generated during operation.

On the other hand, in the present invention, the variable frame 30 has a moisture discharge hole 31 for discharging water droplets due to condensation generated by the difference between the temperature of the display panel and the outside temperature during operation of the display panel to the outside. The moisture discharge hole 31 is formed on both left and right sides and the lower side of the variable frame 30, and each moisture discharge hole 31 has a narrow outlet toward the outside and a wide inlet formed on the display panel side. Water droplets formed and generated by dew condensation are introduced into the inlet and discharged to the outlet, but the inflow of moisture or foreign substances from the outside is minimized.

In addition, the variable frame 30 has a tube for discharging heat generated during operation of the display panel 10 to the outside in a state where the position is displaced by the displacement module 60 on one side to which the connection arm 50 to be described later is coupled. A pore 32 is formed, and a plurality of the vent holes 32 are formed at positions spaced apart from each other, and one end of the vent hole 32 is closed while the variable frame 30 is in contact with the connecting arm 50 . After maintaining the state, when the variable frame 30 is spaced apart from the connection arm 50 by the displacement module 60, the closed end is opened to discharge heat generated from the display panel to the outside.

The heat dissipation fins 40 are connected to the display panel 10 to receive heat generated during operation of the display panel.

The heat dissipation fin 40 is generally referred to as a heat sink, which receives heat from a heat generating medium and transfers it to outside air or a separate cooling means to cool the heat.

In the present invention, the heat dissipation fins 40 are disposed so that one end of the heat dissipation fin 40 is in contact with the display panel 10 to transfer heat generated during operation of the display panel to the displacement module 60 to be described later. It is erected so that it forms a multi-faceted arrangement.

In this case, the heat dissipation fin 40 is preferably formed in a flat plate shape in order to increase thermal conductivity, and more preferably, any one or a combination of two or more of copper (Cu), ceramic, and carbon having high thermal conductivity.

The connecting arm 50 connects the fixed frame 20 and the variable frame 30, extends in the longitudinal direction, and has an empty housing shape. One end is coupled to the fixed frame 20 and the other end is variable. coupled to the frame 30 .

At this time, the connecting arm 50 is formed in the form of a flat plate and consists of a connecting plate 51 disposed to abut against the variable frame 30 and a connecting housing 52 in which a displacement module and a return module, which will be described later, are disposed.

The connection housing 52 is preferably configured such that the position and angle of the variable frame 30 can be adjusted with respect to the fixed frame 20 to which the position is fixed, and for this purpose, the connection arm 50 is a telescope type or A plurality of links are rotatably coupled to be configured to adjust the position and angle of the variable frame 30 .

On the other hand, in the present invention, the connection arm 50 is provided with a displacement module 60 and a return module 70 inside, in addition to simply connecting the fixed frame 20 and the variable frame 30 , so that the The heat dissipation effect can be maximized,

To this end, the connection housing 52 constituting the connection arm 50 of the present invention is made in the form of an empty housing, and a displacement module 60 and a return module 70 to be described later are disposed therein.

The displacement module 60 is provided in the connection housing 52 so that when heat is generated above a predetermined temperature during operation of the display panel 10, the space is spaced apart between the variable frame 30 and the connection plate 51. By dissipating the heat generated by the display panel to the outside through this, it is possible to minimize the deterioration of the characteristics of the display panel and the occurrence of failure due to thermal stress.

For this purpose, the displacement module 60 includes a body 61 disposed inside the connection housing 52 and having an internal accommodating space 611, and the body 61 as shown in FIGS. 3 to 5 . To be disposed in the receiving space 611, the case 621 having an arrangement space 621a therein, a partition film 622 made of an elastic material that partitions the arrangement space 621a, and the partition film 622 ), the pressure generating member 62 including the liquid 623 for pressure generation filled on either side of the arrangement space 621a partitioned by a pair of spaces, and the arrangement space 621a partitioned by the pair of spaces ) disposed on the other empty side of the moving plate 63 coupled to the partition film 622, extending in the longitudinal direction, one end is connected to the moving plate 63, the other end is on the outside of the case (621) The exposed rack gear 64, the pinion gear 65 meshing with the rack gear 64, extending in the longitudinal direction, one end is rotatably coupled to the connection housing 52, and the other end is the variable frame ( 30) is disposed toward the side, the cross section of which is inclined to one side is formed, the movable post 66 axially coupled to the pinion gear 65, and the inclined surface formed on the movable post 66 at one end ( A corresponding inclined surface 671 disposed in contact with the 661 is formed, and the other end includes a fixing post 67 coupled to the variable frame 30 .

The body 61 is disposed inside the connection housing 52 and has an accommodating space 611 formed therein, and the body 61 is an accommodating space ( 611), and in particular, minimizes direct contact of the case 621 of the pressure generating member 62 with the outside air to reduce the risk of malfunction, and at the same time reduce foreign substances and moisture with the case and the pressure generating liquid filled therein, and rack gear, etc. It blocks the inflow of air and reduces the generation of vibration and noise.

The pressure generating member 62 is disposed in the receiving space 611 of the body 61 and includes a case 621 having an arrangement space 621a therein, and a partition film dividing the arrangement space 621a. 622) and a liquid 623 for pressure generation that is filled in any one of the arrangement spaces 621a partitioned by a pair partitioned by the partition film 622 and expands by heat generated in the display panel 10; The partition film 622 includes a moving plate 63 that moves when tensioned by the expansion of the liquid 623 for pressure generation.

The case 621 is formed in the form of a housing having an arrangement space 621a therein, and a hole for communicating the inside and the outside is formed on one side so that a rack gear 64 to be described later is disposed so as to be able to enter and exit.

And a plurality of heat conduction fins 621b disposed between the heat radiation fins 40 are provided on the outer surface of the case 621 to make surface contact with the heat radiation fins 40 or are disposed adjacent to each of the heat radiation fins 40. The heat generated is transferred to the case 621 through the heat conduction fins 621b, and the liquid 623 for pressure generation filled in the arrangement space 621a by the heat transferred to the case expands.

These heat conduction fins 621b are made of copper (Cu) having high thermal conductivity, each of which is made in the form of a flat plate, and are arranged side by side at positions spaced apart from each other.

The partition film 622 is made of a material having elastic restoring force so that it is stretched to the opposite side when the pressure generating liquid 623 expands and returns to its original position when the pressure is released. It is desirable to reinforce the edges and the center because there is a risk of damage first to the areas that are stretched by receiving expansion pressure, such as near the edges and the center, due to rapid expansion. It can be formed by double bonding.

In addition, as shown in the drawing, the partition film 622 pushes the moving plate 63 to be described later while the rim is fixed to the case 621 and tensioned at the fixed position. This is because the partition film 622 is formed in the form of a thin film having elastic restoring force, such as silicone rubber, as described above. Therefore, when the partition film itself moves in the arrangement space 621a of the case, it is folded or one side is rolled during the movement process. There is a problem in that the expansion pressure does not occur as the liquid for pressure generation moves to another arrangement space in which the liquid is partitioned.

Accordingly, the partition film 622 is stretched by the expansion of the pressure generating liquid 623 at the unchanged position, and returns to the original position when the pressure is released.

The pressure generating liquid 623 is filled in the arrangement space 621a of the case 621 partitioned by the partition film 622 made of an elastic material, and is filled in any one of the partitioned arrangement spaces 621a.

In addition, the liquid 623 for pressure generation may be most suitable such as wax, which expands easily by heat, and various liquid materials such as polymer sol and gel such as alcohol or polyethylene glycol may be used. , it is preferable to use a degassed liquid to minimize residual bubbles in the creation of bubbles.

In addition, when an electrolyte (salt, etc.) is added to pure water, the molecules are ionized and the energy required for the collapse of the molecular structure of the liquid is reduced, so that bubbles can be formed with better efficiency, which is more preferable.

In the liquid 623 for pressure generation made as described above, when the heat generated during operation of the display panel 10 is transferred through the heat dissipation fin 40 and transferred to the case 621 transmitted through the heat dissipation fin 40, the pressure is generated As the liquid 623 expands, the partition film 622 is pushed out.

The moving plate 63 is coupled to the partition film 622 and moves in the horizontal direction while interlocking with the tension or return of the partition film 622, so as to be movable in the horizontal direction in the arrangement space 621a of the case. are placed

The moving plate 63 is movably disposed in the arrangement space 621a of the case, and the tensioned partition film 622 is not introduced into the gap formed between the rim of the moving plate 63 and the arrangement space 621a. It is preferable to form the diameter of the moving plate 63 to correspond to the inner diameter of the arrangement space 621a, so that the rolling bearing (B) is disposed on the rim of the moving plate 63 to prevent the generation of movement resistance by friction. and at the same time improve the horizontal mobility of the moving plate 63 .

On the other hand, the case 621 is further provided with an energy transfer unit 624 for expanding the liquid 623 for pressure generation, and the energy transfer unit 624 detects the external temperature sensed during operation of the display panel. It is for pushing the moving plate 63 in the horizontal direction while operating according to the value.

That is, the pressure generating liquid 623 expands by the operation heat of the display panel transferred from the case 621, but when the external temperature rises, it is difficult to quickly move the moving plate by the heat transferred from the display panel. Some problems may arise.

Accordingly, by evaporating the liquid 623 for pressure generation through the energy transfer unit 624 to achieve instantaneous volume expansion, the moving plate 63 can be quickly moved to increase the heat dissipation effect.

For this purpose, the energy transfer unit 624 includes a light-transmitting lens 624a provided at one end of the case 621 filled with the pressure generating liquid 623, and a microwave, a laser, and the light-transmitting lens 624a. It includes an energy generating device 624b that transmits energy by using, for example.

The light-transmitting lens 624a is preferably configured as a convex lens as shown in the drawing, but is not limited thereto, and various types of light-transmitting lenses such as planar type and concave type can be applied as long as light-transmitting is possible, and one side of the case 621 . It is disposed in the open area on the stage, but it is disposed in the form of closing it to prevent leakage of the liquid 623 for pressure generation.

The energy generating device 624b irradiates energy such as microwaves and lasers to the light-transmitting lens 624a while operating by the applied power and signal, and the irradiated energy passes through the light-transmitting lens and the liquid 623 for pressure generation. ) is transferred to and evaporated, thereby pushing the moving plate 63 while the partition film 622 is tensioned by instantaneous volume expansion (pressure increase) and transmission of shock waves.

On the other hand, the energy transfer unit 624 is provided with a temperature sensor 624c for detecting an external temperature to control the operation of the energy generating device 624b according to the external temperature.

Here, the operation and structure of the operation unit (or central control unit) that receives the sensing value detected by the temperature sensing sensor 624c and determines the operation of the energy generating device in comparison with the stored information is well known, and thus detailed illustration and description are omitted. let it do

The rack gear 64 extends in the longitudinal direction, one end is connected to the moving plate 63 , the other end is exposed to the outside of the case 621 , and a gear mount for meshing is formed on one side of the outer surface.

At this time, the other end of the rack gear 64 is compressed by the moved rack gear 64 , and when the pressure of the liquid 623 for pressure generation is released, the rack gear 64 is moved to the case 621 side. A return means 641 is provided.

The return means 641 includes a return pin 641a protruding from the other end of the rack gear 64 and formed along the length direction of the rack gear 64 and the return pin 641a on the same horizontal line. A return block 641b disposed at a position spaced apart from the return pin 641a, one end abutting the other end of the rack gear 64, and the other end being in contact with the return block 641b, the rack It includes a return spring 641c that forms an elastic force for pushing the gear 64 toward the case 621.

In the return means 641 , the return spring 641c is compressed when the rack gear 64 moves in the horizontal direction by the expansion of the liquid 623 for pressure generation, and then the pressure of the liquid 623 for pressure generation is released. When the return spring 641c is returned to its original position, the rack gear 64 is moved toward the case 621 side.

The pinion gear 65 is disposed to mesh with the rack gear 64 , and a gear mountain for meshing is formed on an outer circumferential surface of the pinion gear 65 .

Since the pinion gear 65 is used together with the rack gear 64 and has the same operation as a known rack and pinion gear, a detailed operation description will be omitted.

The movable post 66 extends in the longitudinal direction and is axially coupled to the pinion gear 65 so that the pinion gear 65 rotates in conjunction with the rotation, and one end is rotatably coupled to the connection housing 52 and The other end is formed with an inclined surface 661 inclined to one side.

Here, a bearing B is disposed in the connection housing 52 to which one end of the movable post 66 is coupled to support rotation, and a recess 662 extending in the longitudinal direction in the inclined surface 661 formed at the other end thereof. ) is provided, and a portion of the rod-shaped rod 68 extending in the longitudinal direction is inserted into the recess 662 .

The fixed post 67 has a corresponding inclined surface 671 disposed in contact with the inclined surface 661 formed on the movable post 66 at one end, and the other end is coupled to the variable frame 30, and a corresponding inclined surface 671 is formed. ) is formed, a corresponding recess 672 corresponding to the recess 662 is provided at one end, and a portion of the rod 68 is inserted thereinto.

And the fixed post 67 is to couple the variable frame 30 to the connecting housing 52, and the movable post 66 rotates while pushing the fixed post 67 to connect the variable frame 30 to the connecting plate 51 ), heat generated from the display panel 10 surrounded by the variable frame 30 is radiated to the outside to prevent deterioration and damage to the display panel due to thermal stress.

Here, the rod 68 is formed in the form of a rod extending in the longitudinal direction, and a part is inserted into the recess 662 and the other part is inserted into the corresponding recess 672, so that the movable post 66 rotates while the fixed post ( When moving the 67) or when the fixed post 67 returns to its original position through a return module 70 to be described later, the position movement of the fixed post 67 is guided.

The return module 70 couples the variable frame 30 to the connection housing 52 , and releases the expansion pressure of the liquid for pressure generation in the variable frame 30 moved by the operation of the displacement module 60 . This is to return it to its original position.

The return module 70 for this purpose includes a guide hole 71 formed in the variable frame 30, a guide bolt 72 that passes through the guide hole 71 and is fastened to the connection housing 52, and the guide bolt. It is fitted to the spiral portion of (72) and the guide bolt (72) includes a return spring (73) supported at both ends on one surface of the head and the variable frame (30).

In the return module 70 made as described above, when the variable frame 30 is moved by the operation of the displacement module 60, the return spring 73 is compressed, and then the pressure of the pressure generating liquid 623 is released. When the return spring 73 returns the variable frame 30 to the original position through the elastic restoring force.

Here, a plurality of the return modules 70 are disposed at positions spaced apart from each other to support the load of the variable frame 30 , and the position and number of these return modules 70 are not limited to the shapes shown in the drawings.

The rust prevention layer 80 is formed on the fixed frame 20, the variable frame 30, and the connecting arm 50, respectively, to protect them from moisture and foreign substances contained in the outside air to minimize corrosion, for this purpose The rust prevention layer 80 is formed by applying a rust prevention solution obtained by emulsifying PEPE (perfluorinated polyether) oil with O/W (oil phase/water phase) on the outer surfaces of the fixed frame 20 and the variable frame 30, but the rust prevention The solution is to prepare a mixed solution by mixing PEPE oil and PEO-b-PS (poly(ethylene oxide)-polystyrene) in a weight ratio of 1:1 to 1.5:1, and 5 parts by weight of the mixed solution with respect to 100 parts by weight of water. It is prepared by dissolving by adding to 10 parts by weight.

PFPE oil, also called Krytox oil, is a substance with a chemical structure of F-(CF(CF₃)-CF₂-O)n-CF₂CF₃ and is mainly used as a lubricant. However, since PEPE oil is insoluble, it is difficult to prepare an aqueous coating solution.

Therefore, in the present invention, in order to coat the surface of the fixed frame, the variable frame and the connecting arm, PEPE oil is emulsified in O/W (oil/water phase) and used as a coating solution.

Specifically, PFPE oil and PEO-b-PS (poly(ethylene oxide)-polystyrene) are mixed in a weight ratio of 1:1 to 1.5:1 and dissolved in water to prepare an emulsion, wherein the PFPE oil is 5 in an aqueous solution. to 10% by weight.

The coating solution containing the PEPE oil prepared as described above is coated on the surfaces of the fixed frame, the variable frame and the connecting arm. It can be coated by repeating the impregnation and drying process of taking out and drying after being impregnated in an aqueous solution of silicone oil 2 to 5 times.

Here, in order to further improve the rust-preventive performance of the rust-preventing layer, an aqueous solution of the silicone oil is added to 30 to 100 parts by weight of a coating agent consisting of polyamide imide polymer (PAI), isopropanol, methylpyrrolidone, and methylisobutyl ketone. It may be coated by a spray coating method or a dip coating method using a coating composition mixed in an amount of 50 parts by weight.

At this time, the dimethyl silicone oil is TSF-400, TSF-405, TSF-451, TSF-456, TSF-458, and the methylphenyl silicone oil is TSF-431, TSF-433, TSF-434, TSF-437, etc. A commercially available silicone oil may be used.

The rust-preventive layer made as described above can prevent moisture and foreign substances contained in the outside air from corroding or contamination of the surfaces of the fixed frame, the variable frame, and the connecting arm while being exposed to the outside at all times, and can be used even for a long time. It has the effect of extending the service life as well as reducing the cost of maintenance.

As described above, the present invention has been described with specific matters such as specific components and limited embodiments and drawings, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims to be described later, but also all those with equivalent or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

1: Exterior wall-mounted advertising display device
10: display panel
20: fixed frame
30: variable frame
40: heat dissipation fin
50: connecting arm
51: connection plate 52: connection housing
60: displacement module
61: body 62: pressure generating member
63: moving plate 64: rack gear
65: pinion gear 66: movable post
67: fixed post 68: rod
70: return module
71: guide hole 72: guide bolt
73: return spring
80: anti-rust layer

Claims (3)

a display panel 10 for outputting a screen operated by the applied power and signal;
A fixed frame 20 fixed to the outer wall of the building or a fixed post;
a variable frame 30 to which the display panel 10 is coupled and displaceably coupled to the fixed frame 20;
a heat dissipation fin 40 connected to the display panel 10 to receive heat generated during operation of the display panel;
a connecting arm 50 connecting the fixed frame 20 and the variable frame 30;
It is provided in the connection arm 50 and moves in a direction to separate the variable frame 30 from the fixed frame 20 by the pressure acting on the liquid for pressure generating expanded by the heat transferred from the heat dissipation fin 40 . a displacement module (60);
The variable frame 30 is coupled to the connecting arm 50, but when the variable frame 30 is moved by the displacement module 60, it guides the movement of the variable frame and acts on the pressure generating liquid. a return module 70 for returning the variable frame 30 to its original position when the pressure is released;
The fixed frame 20, the variable frame 30, and the anti-rust layer 80 formed on the connecting arm 50, respectively, to protect it from moisture and foreign substances; including,
The rust prevention layer 80,
It is formed by applying a rust preventive solution obtained by emulsifying PEPE (perfluorinated polyether) oil with O/W (oil/water phase) on the outer surfaces of the fixed frame 20, the variable frame 30 and the connecting arm 50,
The rust preventive solution,
A mixed solution is prepared by mixing PEPE oil and PEO-b-PS (poly(ethylene oxide)-polystyrene) in a weight ratio of 1:1 to 1.5:1,
An external wall-mounted display device for advertisement, characterized in that it was prepared by dissolving 5 to 10 parts by weight of the mixed solution with respect to 100 parts by weight of water. delete The method according to claim 1, The displacement module (60),
a body 61 disposed inside the connecting arm 50 and having an internal accommodating space 611;
To be disposed in the receiving space 611 of the body 61,
A case 621 having an arrangement space 621a therein, a partition film 622 made of an elastic material that partitions the arrangement space 621a, and a pair of spaces are partitioned by the partition film 622 A pressure generating member 62 including a pressure generating liquid 623 filled on either side of the arrangement space 621a, and
a moving plate 63 disposed on the other empty side of the arrangement space 621a partitioned by the pair of spaces and coupled to the partition film 622;
a rack gear 64 extending in the longitudinal direction, one end connected to the moving plate 63 and the other end exposed to the outside of the case 621;
a pinion gear (65) engaged with the rack gear (64);
Extending in the longitudinal direction, one end is rotatably coupled to the connecting arm 50, and the other end is disposed toward the variable frame 30 side, and an inclined surface 661 whose cross section is inclined to one side is formed, and the pinion gear ( A movable post 66 axially coupled to 65, and
A corresponding inclined surface 671 disposed in contact with the inclined surface 661 formed on the movable post 66 is formed at one end, and the other end includes a fixed post 67 coupled to the variable frame 30. Display device for installation advertisement.

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