KR100954514B1 - Outdoor display system - Google Patents

Abstract

PURPOSE: An outdoor display system is provided to efficiently perform cooling and heating of air by enabling smooth flow of the air and to block blackouts by compulsorily cooling air through an upper fan and a lower fan. CONSTITUTION: A gap unit(135) is formed between a front transmitting unit(130) and a display panel(140). An air-conditioning and heating device(180) performs the cooling or heating of air. The air flows from the lower part of the gap unit to the gap unit through a lower fan(175). An upper fan(170) discharges the air from the upper part of the gap unit into the gap unit. The both end parts of an air inducing member are projected in the direction of the upper pan and lower pan. The air inducing member induces the flow of the air.

Description

Outdoor display system {OUTDOOR DISPLAY SYSTEM}

The present invention relates to an outdoor display system, and more particularly, to an outdoor display system that can prevent the display from abnormally changing due to environmental changes in outdoor temperature and humidity.

Conventional outdoor display systems contain a display, such as an LCD, inside a sealed box to prevent abnormal changes in the system due to cooling of the display and external heat or a decrease in external air temperature. In order to produce heat, a heating and cooling device is provided.

It is known that the outdoor environment has more severe usage conditions than the display device used indoors.

In particular, when the temperature inside the outdoor display system exceeds 90 ° C. due to the direct sunlight caused by summer sunlight and the heat of the display itself, a blackout phenomenon occurs in the display. When a blackout phenomenon occurs on the display, a fatal problem occurs because the screen is displayed in black, so that a character or an image cannot be displayed and thus, the display unit cannot function as a display. Such a blackout phenomenon is known to occur mainly due to an increase in display front temperature caused by direct sunlight.

In addition, since the temperature outside the outdoor display system is low in winter, condensation may occur because the temperature inside the system is also lowered together. If condensation occurs inside the system, moss and dust may be formed on the display panel, resulting in a significant drop in durability and cyan.

In order to solve this problem, the conventional outdoor display system is equipped with a heating and cooling device, a method of cooling the inside of the system when the outside temperature is high, and heating the inside of the system when the outside temperature is low. However, there was a considerable difficulty in eliminating the blackout phenomenon of the display even by cooling the air conditioner. In particular, when the direct sunlight in the summer is irradiated to the display panel, due to the rise in the front temperature of the display there is a problem that can not prevent the blackout phenomenon only by the heating and cooling device.

The present invention was derived to solve the above problems, to provide an outdoor display system that can eliminate the blackout phenomenon.

The present invention is to provide an outdoor display system that can reduce the volume of the space to be heated and cooled the air-conditioning device and can block the heat transfer from the outside.

The present invention is to provide an outdoor display system that can facilitate the heating and cooling of the air flow inside the system efficiently.

The present invention also provides an outdoor display system excellent in durability and cyanability.

According to an aspect of the present invention, an outdoor display system includes a front permeable part, a display panel spaced apart from the front permeable part by a predetermined distance, an interval part that is an empty space formed between the front permeable part and the display panel, and cools or heats air. A heating and cooling device, a lower fan positioned at the lower part of the gap and allowing air heated or cooled by the cooling unit to enter the gap, and an air introduced into the gap by the lower fan located at the upper part of the gap from the gap. And an upper fan for discharging.

Embodiments of the outdoor display system according to the present invention may have one or more of the following features. For example, the air-conditioning device may be inserted, and both ends may further include air inducing members protruding in the direction of the upper fan and the lower fan to induce the flow of air. And the air guide member may include an insertion hole in which the heating and heating device is mounted.

The air induction member may include a vertical portion having an insertion hole, a second inclined portion formed obliquely at both ends of the vertical portion, and a first inclined portion formed obliquely at the end of the second inclined portion. And the heating and cooling device includes a thermoelectric element, the insertion hole may be in contact with the thermoelectric element. In addition, the air guide member may include a vertical portion formed with the insertion hole, and a curved portion formed at both ends of the vertical portion.

The upper fan and the lower fan may be arranged in the width direction of the gap portion, the upper fan and the lower fan may be a cross flow fan (cross flow fan).

The front surface of the front permeable part may be a diffuse reflection coating, and the rear surface thereof may be an insulating coating.

It may have a waterproof function, including a front frame coupled to the front transmission unit, and a rear frame coupled to the air conditioning unit.

And a front frame and a rear frame for accommodating the display panel and the air conditioner and forming an outer body, and the air guide member may contact the front frame and / or the rear frame.

The present invention can provide an outdoor display system that can block the blackout phenomenon by forming a gap on the front surface of the display panel and forcibly circulating and cooling the air by the upper fan and the lower fan.

The present invention can provide an outdoor display system that can reduce the volume of the space to be heated and cooled by the air induction member and block heat transfer from the outside.

The present invention can provide an outdoor display system that can facilitate the flow of air by the air induction member to efficiently cool and heat.

The present invention can provide an outdoor display system excellent in durability and cyan.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and in describing the present invention with reference to the accompanying drawings, the same or corresponding elements are denoted by the same reference numerals regardless of the reference numerals, and duplicates thereof. The description will be omitted.

1 is a perspective view of an outdoor display system 100 according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the display system 100 illustrated in FIG. 1. 3 is a cross-sectional view of an outdoor display system 100 according to an embodiment of the present invention.

1 to 3, the outdoor display system 100 according to an embodiment of the present invention includes a front panel 130 and a display panel 140 positioned behind the front panel 130. , An empty space formed between the front transmissive part 130 and the display panel 140, an upper fan 170 and a lower fan 175 positioned at upper and lower portions of the gap 135, and a display. And an air induction member 150 positioned between the air conditioning and heating unit 180, the display panel 140, and the air conditioning unit 180 located behind the panel 140 to induce the flow of air.

In the outdoor display system 100 according to the present exemplary embodiment, a gap portion 135 corresponding to an empty space is formed between the front transmissive portion 130 and the display panel 140, and the upper portion is disposed above and below the gap portion 135. The fan 170 and the lower fan 175 are formed. The upper fan 170 and the lower fan 175 forcibly circulates air in the gap 135, whereby the heat generated in the display panel 140 is cooled by the circulation of the air. The air forcedly discharged from the gap 135 is cooled or heated by the air conditioning unit 180, and then flows back into the gap 135.

Since the outdoor display system 100 according to the present exemplary embodiment forms the spacer 135 on the front surface of the display panel 140 and cools the heat generated in the display panel 140 by forced circulation of air. There is a feature in that the blackout phenomenon caused by sunlight or the like can be removed.

In addition, the outdoor display system 100 according to the present embodiment includes a front frame 120 and a rear frame 190. The front frame 120 and the rear frame 190 are coupled to each other to form a space enclosed therein. To form. As such, condensation may be prevented by sealing the outdoor display system 100 to block inflow of moisture and dust.

The front penetrating unit 130 is formed of tempered glass or the like, so that a character or a video played on the display panel 140 can be viewed from the outside. The front transmissive part 130 is exposed to the outside through the opening 122 formed in the front frame 120, and prevents foreign matter from entering the system 100 and protects the display panel 140. do.

A front surface of the front transparent portion 130 may be a diffuse reflection coating such as AG coating in order to remove the phenomenon caused by sunlight. In addition, an insulation coating such as an IR coating may be performed on the rear surface of the front transmission part 130 in order to prevent temperature rise due to sunlight (particularly, direct sunlight).

The front transparent part 130 is positioned to be spaced apart from the display panel 140 by a predetermined interval, and a gap 135, which is an empty space, is formed between the front transparent part 130 and the display panel 140. In the gap 135, air is forced to circulate by the upper fan 170 and the lower fan 175.

The display panel 140 is positioned to be spaced apart from the front transparent part 130 with a gap 135 therebetween, and may be a flat panel display panel such as an LCD panel, a PDP panel, an LED panel, an OLED panel, and the like. When the flat panel display panel 140 receives direct sunlight, blackout may occur on the screen. In the outdoor display system 100 according to the present exemplary embodiment, the flat display panel 140 may circulate black air by forcibly circulating the cooled air in the gap 135. Out phenomenon can be prevented.

The gap 135 corresponds to an empty space defined by the rear of the front transparent unit 130 and the front of the display panel 140. The lower portion of the gap 135 is provided with a lower fan 175 and the upper portion is provided with an upper fan 170. The air cooled or heated by the lower fan 175 is forced to flow into the gap 135 and then rises to cool or heat the display panel 140 and then is discharged to the outside by the upper fan 170. The air discharged from the gap 135 is heated or cooled by the air conditioner 180, and then flows back into the gap 135 by the lower fan 175.

The width of the spacer 135 may be changed according to the sizes of the display panel 140 and the front transparent part 130, and may be generally within 2 cm.

The lower fan 175 is positioned below the gap 135 to force the air cooled or heated by the air conditioning unit 180 to the gap 135. The lower fan 175 is arranged in the width direction of the front transmissive part 130 and the display panel 140, and may be configured as a cross flow fan to allow air to flow into the gap 135.

When the size of the display panel 140 is large, the lower fan 175 may be formed by connecting a plurality of cross flow fans. In addition, the lower fan 175 may be driven by the DC motor, the DC motor has an advantage of excellent cooling efficiency because the amount of heat generated by the motor itself is small. In addition, the number of revolutions of the motor in the lower fan 175 may vary depending on the size of the display panel 140, so that the motor can be driven at 4000 rpm or more in order to obtain an appropriate cooling efficiency.

The upper fan 170 is positioned above the gap 135 to discharge air heated by the display panel 140 to the outside of the gap 135. The upper fan 170 is arranged in the width direction of the front transmissive part 130 and the display panel 140, and is configured as a cross flow fan to discharge air from the gap 135.

Like the lower fan 175, the upper fan 170 may be configured by connecting a plurality of crossflow fans, and may reduce the amount of heat generated by the motor itself by using a DC motor.

The air induction member 150 is located at the rear of the display panel 140 to facilitate the flow of air in the interior of the outdoor display system 100, and is transferred to the display panel 140 from the outside of the outdoor display system 100. It serves to block the heat. The air induction member 150 has a concave shape as a whole, and has a vertical inclined portion 156 at the center, a second inclined portion 154 formed at a constant inclination angle at both ends of the vertical portion, and at both ends of the second inclined portion 154. The first inclined portion 152 is formed to have a predetermined inclination angle.

The vertical portion 156 is positioned in parallel with the front transmissive portion 130 or the display panel 140, and an insertion hole 158 into which the cooling and heating device 180 is inserted is formed at the center thereof. Insertion hole 158, as shown in Figure 3, is in contact with the thermoelectric element 182 of the air-conditioning device 180. In general, the thermoelectric element 182 is formed by bonding two different types of metals to each other, and the insertion hole 158 may be located at the junction portion thereof.

The second inclined portion 154 is a portion formed at both ends of the vertical portion 156 to have a predetermined inclined angle symmetrically, the first inclined portion 152 is a mutually symmetrical inclined angle at both ends of the second inclined portion 154 It is a part formed with. An inclination angle of the first inclined portion 152 may be larger than that of the second inclined portion 154. Due to the first inclined portion 152 and the second inclined portion 154, the air induction member 150 has a concave shape around the vertical portion 156.

An end of the first inclined portion 152 is in contact with the rear frame 190, as shown in FIG. In addition, both side ends of the vertical portion 156, the first slope portion 152, and the second slope portion 154 may be in contact with the rear frame 190. Therefore, the air induction member 150 divides the inside of the outdoor display system 100 into a part that is heated and cooled by the air conditioner 180 and a part that is not. In addition, since the air induction member 150 reduces the volume of the outdoor display system 100 to be heated and cooled by the air conditioner 180, it prevents unnecessary energy consumption by the air conditioner 180 and more efficiently heats and cools the air. To be done.

In addition, the air induction member 150 allows the air discharged by the upper fan 170 to smoothly flow into the air conditioner 180, and the air cooled or heated in the air conditioner 180 to the lower fan 175. It plays a role of smooth inflow.

The air induction member 150 may be formed of a metal or plastic resin, and prevents external heat transmitted through the front frame 120 or the rear frame 190 from being transferred to the display panel 140. do.

The air conditioning unit 180 includes a thermoelectric element 182 positioned at a central portion thereof, a pair of heat dissipation fins 186 provided symmetrically with respect to the thermoelectric element 182, and a blowing fan formed at a predetermined portion of the heat dissipation fins 186. 184. The air conditioning unit 180 operates when the internal air of the outdoor display system 100 becomes above or below a predetermined value to serve to heat or cool the air.

The thermoelectric element 182 is formed by joining two different metals, and is configured to endothermic or generate heat depending on the direction of the current applied to the gold. For example, when a current is applied in one direction, one of two metals of the thermoelectric element 182 absorbs heat and one generates heat to increase the temperature inside the outdoor display system 100. When the current is applied in the opposite direction as the endothermic, one of the two metals of the thermoelectric element 182 is endothermic and one generates heat, thereby lowering the temperature inside the outdoor display system 100.

The heat dissipation fins 186 attached to both sides of the thermoelectric element 182 are composed of a plurality of fins, and serve to facilitate heat dissipation or heat absorption of the thermoelectric element 182. In addition, the blowing fan 184 is attached to the heat dissipation fins 186 so that the heat absorption and heat generation through the heat dissipation fins 186 may be efficiently performed.

The front frame 120 and the rear frame 190 are coupled to each other to form an exterior of the outdoor display system 100 and to seal the inside thereof. Since the outdoor display system 100 according to the present embodiment is used outdoors, dust or moisture may be introduced into the system 100. Moisture or dust introduced into the system 100 affects the display panel 140 and the like according to the change in temperature, thereby weakening cyaniness and durability. In particular, when moisture is introduced into the system 100, condensation may occur due to a crossover and a temperature difference, and moss or frost may occur. Therefore, it is preferable that the outdoor display system 100 according to the present embodiment is completely sealed so that moisture or dust does not flow into the interior.

In addition, in order to prevent moisture from entering the interior during the assembly process, the air inside the system 100 may be partially removed or the humidity of the assembled environment may be adjusted within 40%.

The front frame 120 has an opening 122 formed on its front surface, and the front light transmitting portion 130 is exposed to the outside through the opening 122. In the center of the rear frame 190, a mounting groove 192 into which the cooling and heating device 180 can be inserted is formed. In the mounting groove 192, the thermoelectric element 182 of the cooling and heating device 180 is located. In addition, as illustrated in FIG. 3, a heat dissipation fin 194 is formed on an outer surface of the mounting groove 192.

The material of the front frame 120 and the rear frame 190 may use a general steel plate, but is not limited thereto. In addition, by constituting the air induction member 150 with an aluminum heat sink, it is possible to maximize the heating and cooling efficiency.

Hereinafter, the operation of the outdoor display system 100 according to an embodiment of the present invention will be described with reference to FIG. 4.

4 is a cross-sectional view illustrating an operating state of the outdoor display system 100 according to an exemplary embodiment. Arrows in FIG. 4 indicate the flow of air.

When the temperature inside the outdoor display system 100 is high, a sensor (not shown) recognizes this and the air conditioner 180 is operated by a control signal of a controller (not shown). At this time, since the air conditioner 180 operates as a cooling device, it serves to cool the air. In addition, the upper fan 170 and the lower fan 175 are operated to force air to be circulated upward from the lower portion of the gap 135.

The air cooled by the air conditioning unit 180 is introduced into the gap 135 by the lower fan 175. Cooling air introduced into the gap 135 is raised after cooling the heated display panel 140, and then exits from the gap 135 by the upper fan 170. The air discharged from the spacer 135 flows along the first inclined portion 152 and the second inclined portion 154 of the air guide member 150 and flows back into the heating and cooling device 180. In addition, the air conditioning unit 180 recools the heated air while passing through the gap unit 135, and the recooled air is re-introduced into the gap unit 135 by the lower fan 175.

When the temperature inside the outdoor display system 100 is low, the sensor recognizes this and the air conditioner 180 operates as a heater according to a control signal of the controller. Air heated by the air conditioner 180 is introduced into the gap 135 by the lower fan 175. The heated air introduced into the gap 135 is heated after heating the display panel 140 and discharged from the gap 135 by the upper fan 170. The air discharged from the spacer 135 flows along the first inclined portion 152 and the second inclined portion 154 of the air guide member 150 and flows back into the heating and cooling device 180. The air conditioning unit 180 reheats the cooled air while passing through the gap unit 135, and the reheated air is reintroduced into the gap unit 135 by the lower fan 175.

As described above, the outdoor display system 100 according to the present exemplary embodiment may detect a blackout phenomenon of the display panel 140 due to direct sunlight or the like, and the gap 135 which is an empty space formed between the front light transmitting unit 130 and the display panel 140. This is solved by forcibly circulating air in the air) to cool the display panel 140.

Hereinafter, another embodiment of the air induction member will be described with reference to FIG. 5. 5 is a cross-sectional view according to another embodiment of the air induction member.

Referring to FIG. 5, the air induction member 160 has a curved portion 162 having a curved shape unlike the air induction member 150 described above, and has an overall symmetrical shape. And in the center is formed a mounting groove 192 into which the cooling and heating device 180 can be inserted. The curved portion 162 guides the air discharged from the gap 135 by the upper fan 170 to the air conditioner 180, or induces air heated or cooled by the air conditioner 180 to lower the fan ( 175).

In the outdoor display system 100 according to the present invention, the air induction member may have various configurations in addition to those described above. For example, the air guide member may have an arc shape in cross section and may be concave.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the present invention as set forth in the claims below It will be appreciated that modifications and variations can be made.

1 is a perspective view of an outdoor display system according to an embodiment of the present invention.

2 is an exploded perspective view of an outdoor display system according to an embodiment of the present invention.

3 is a cross-sectional view of the outdoor display system illustrated in FIG. 2.

4 is a cross-sectional view showing the flow of air in the outdoor display system according to an embodiment of the present invention.

5 is a cross-sectional view according to another embodiment of the air induction member.

Claims (12)

delete delete Front transmissive unit; A display panel spaced apart from the front transparent portion at a predetermined interval; A spacing portion that is an empty space formed between the front transmissive portion and the display panel; A heating and cooling device capable of cooling or heating the air; A lower fan positioned below the gap and allowing air heated or cooled by the air conditioning unit to flow into the gap; And Located in the upper portion of the gap portion and includes an upper fan for discharging the air introduced into the gap portion by the lower fan from the gap portion, The air-conditioning device is inserted, the outdoor display system, characterized in that it comprises an air induction member protruding in the air flows in the direction of the upper fan and the lower fan in both directions. The method of claim 3, The air guide member is an outdoor display system, characterized in that it comprises an insertion hole in which the air-conditioning device is mounted. The method of claim 4, wherein The air guide member includes a vertical portion having the insertion hole formed therein, a second inclined portion formed obliquely at both ends of the vertical portion, and a first inclined portion formed obliquely at the end of the second inclined portion. The method of claim 4, wherein The air-conditioning device includes a thermoelectric element, the insertion hole is an outdoor display system, characterized in that the contact with the thermoelectric element. The method of claim 4, wherein The air guide member includes a vertical portion in which the insertion hole is formed, and a curved portion formed at both ends of the vertical portion. The method of claim 3, And the fan is disposed in the width direction of the gap. The method of claim 8, And the fan is a cross flow fan. The method of claim 3, Outdoor front display system characterized in that the front of the front transmission portion is a diffuse reflection coating. The method of claim 3, The rear surface of the front transmission portion is an outdoor display system, characterized in that the insulating coating. The method of claim 3, A front frame and a rear frame which accommodate the display panel and the air-conditioning device and form an outer body; The air guide member is in contact with the front frame and the rear frame, characterized in that the outdoor display.

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