Power-saving outdoor display apparatus with branched suction fan

Abstract

A power-saving outdoor display apparatus with a branched suction fan, according to one embodiment of the present invention, comprises: a display panel which has a drive board mounted on the rear surface thereof; a rear bracket which is coupled to the display panel having the drive board mounted thereon, and in which an opening for air flow is formed; a housing which accommodates the rear bracket coupled to the display panel, has coupled thereto a transparent optical member positioned on the front surface of the display panel, and has formed therein an inlet for air to enter, and an outlet for air to be discharged; one or more inflow fans which are provided on the lower portion of the rear bracket along the width direction; and one or more discharge fans which are provided on the upper portion of the rear bracket along the width direction, wherein, when viewed on a plane, a portion each of the inflow fans and the discharge fans is forwardly disposed toward the display panel, and the remaining portion thereof is forwardly disposed toward a rear housing.

Description

Power-saving outdoor display device with branch-type suction fan

[0001] The present invention relates to a power-saving outdoor display device, and more specifically, to a power-saving outdoor display device equipped with a branch-type suction fan that can contribute to power savings by further increasing the heat dissipation and cooling efficiency of the inside of the display device compared to the prior art by smoothly branching and circulating heated air generated inside the device through a branch-type suction fan additionally introduced inside the display device so as not to be mixed with the air flowing into the device.

[0002] There was a problem that malfunctions occurred and product lifespan was shortened due to heat generated inside outdoor display devices, which are advertising devices generally used outdoors, and temperature rise in the front of the display panel and inside the product caused by direct sunlight.

[0003] To solve this problem, conventional technology has adopted a method of forcibly cooling the heat generated inside the product by installing an air conditioner with a compressor at the bottom or back of the product.

[0004] However, according to the above-described conventional technology, there was an additional problem in that the price burden increased due to additional components such as air conditioners installed inside the product, and the size of the product became larger compared to the actual displayed part.

[0005] To solve these problems, an example of an outdoor display device with enhanced temperature stability is well described in Patent Registration No. 1985887 (hereinafter referred to as “prior document”) previously filed by the applicant of the present invention.

[0006] The conventional outdoor display device disclosed in the above-mentioned prior art is configured to stabilize the internal temperature of the device by inducing air flow into a first clearance space existing between the front surface of the display panel (10) and the transparent optical member (60), a second clearance space existing between the rear surface of the display panel (10) and the rear bracket (20) in which the opening (220) is formed, and a third clearance space existing between the rear bracket (20) and the housing (30).

[0007] Specifically, the rear of the display panel (10) is equipped with a driving board and other electronic devices including a set-top box, etc., on which electronic devices for driving the display panel (10) are mounted, and since these emit a considerable amount of heat during operation, a countermeasure for this is required.

[0008] In addition, the front surface of the display panel (10) emits heat on its own while being exposed to external light. That is, the front surface of the display panel (10) is heated not only by the heat it emits on its own but also by external light that passes through the transparent optical member (60) described later and reaches the front surface of the display panel (10), so a means to counter this is required.

[0009] In addition, the rear bracket (20) is coupled to the display panel (10) on which the driving board is mounted, and has an opening (220) formed therein for air flow. For example, the opening (220) formed in the rear bracket (20) may be provided on at least both sides of an area where the driving board mounted on the display panel (10) is located, and may be configured to enhance air flow between the second clearance space and the third clearance space. For example, upper air holes (230) may be formed in an upper area of ​​the rear bracket (20) coupled with the display panel (10) to induce air flow between the first clearance space and the third clearance space, and these upper air holes (230) may have a stripe shape extending in the horizontal direction of the rear bracket (20).

[0010] Additionally, the housing (30) accommodates a rear bracket (20) coupled to the display panel (10), and a transparent optical member (60) positioned on the front of the display panel (10) is coupled to the front of the housing (30). For example, the housing (30) may include a front housing (40) coupled with a transparent optical member (60) and a rear housing (50) having an inlet (530) and an outlet (520) formed therein.

[0011] Specifically, an inlet (530) for introducing external air is formed at the lower portion of the rear of this housing (30), i.e., the lower portion of the rear housing (50), and an outlet (520) for discharging internal air is formed at the upper portion of the rear of the housing (30), i.e., the upper portion of the rear housing (50). Filters for preventing the introduction of foreign substances may be provided at the outlet (520) and the inlet (530).

[0012] In addition, the transparent optical member (60) combined on the front of the display panel (10) performs the function of protecting the display panel (10). For example, glass or the like may be used as the material for the transparent optical member (60), but is not limited thereto, and any material having transparency may be used as the transparent optical member (60).

[0013] Below, the specific operation of a conventional outdoor display device disclosed in a prior art document is explained by dividing it into an emission mode and a circulation mode.

[0014] FIG. 3 is a drawing for explaining the air flow in the conventional outdoor display device of FIG. 1 when the internal temperature rises.

[0015] Referring further to FIG. 3, an airflow in exhaust mode, which exhausts heat inside the device to the outside, is disclosed. In exhaust mode, both an inlet fan (210) and an exhaust fan (510) operate, wherein the inlet fan (210) is provided at the lower portion of the rear bracket (20) to correspond to the position of the inlet port (530) formed in the rear housing (50), and the exhaust fan (510) is provided at the exhaust port (520) formed in the rear housing (50).

[0016] First, the air drawn in through the inlet (530) by the operation of the inlet fan (210) is divided into a first free space and a second free space. The first free space is a space existing between the front of the display panel (10) and the transparent optical member (60), and the second free space is a space existing between the rear of the display panel (10) and the rear bracket (20).

[0017] The air branched into the first free space rises and absorbs the heat existing in the first free space, i.e., the space between the front of the display panel (10) and the transparent optical member (60). The air that has absorbed the heat in the first free space is guided to the exhaust port (520) through the upper air holes (230) formed in the rear bracket (20) by the operation of the exhaust fan (510) and is then discharged to the outside.

[0018] The air branched into the second free space rises and absorbs the heat existing in the second free space, i.e., the space between the rear of the display panel (10) and the rear bracket (20). The air that has absorbed the heat in the second free space passes through the opening (220) formed in the rear bracket (20) and then rises in the third free space by the operation of the exhaust fan (510) and absorbs the heat existing in the third free space, i.e., the space between the rear bracket (20) and the rear housing (50). The air that has absorbed the heat in the third free space is guided to the exhaust port (520) by the operation of the exhaust fan (510) and discharged to the outside.

[0019] The exhaust mode is configured to lower the temperature when the temperature inside the device rises above an appropriate value so that the temperature inside the device is maintained at an appropriate value.

[0020] According to this configuration in the exhaust mode, since the air evenly circulates through the main heat-generating parts of the outdoor display device, i.e., the first clearance space existing between the front of the display panel (10) and the transparent optical member (60), the second clearance space existing between the rear of the display panel (10) and the rear bracket (20), and the third clearance space existing between the rear bracket (20) and the rear housing (50), the overall temperature distribution inside the device becomes constant, the time required to correct the temperature inside the device to the target value is shortened, and the temperature inside the device can accurately reach the target value while reducing the operating time of the inlet fan (210) and the exhaust fan (510).

[0021] However, the conventional outdoor display device described above circulates the air drawn in from the intake fan (210) inside the housing (30), and guides the air that has absorbed heat in the first, second, and third free spaces during the air circulation process inside the housing to the exhaust port (520) by the operation of the exhaust fan (510) and discharges it to the outside. In this case, if the air in the intake fan (210) and the exhaust fan (510) does not form a smooth streamline and interferes with each other, not only is the air not smoothly distributed and exhausted inside the housing, but abnormal phenomena such as vibration and heat bodies caused by turbulence and vortex inside the housing are also induced.

[0022] Therefore, there was a problem in which the heat dissipation and cooling efficiency inside the device was significantly reduced due to the above-mentioned abnormal phenomena.

[0023] Accordingly, the present invention has been devised to solve the above-mentioned problems, and the purpose of the present invention is to provide a power-saving outdoor display device equipped with a branch-type suction fan that can contribute to power savings by further increasing the heat dissipation and cooling efficiency inside the display device compared to the prior art by smoothly branching and circulating the heated air generated inside the device without mixing it with the air flowing into the device through a branch-type suction fan additionally introduced inside the display device.

[0024] In order to achieve the above object, the present invention, according to one embodiment, comprises: a display panel having a driving board mounted on the rear surface; a rear bracket coupled to the display panel having the driving board mounted thereon and having an opening formed therein for air flow; a housing that accommodates the rear bracket coupled to the display panel, has a transparent optical member positioned on the front of the display panel coupled thereto, and has an inlet for introducing air and an outlet for discharging air; at least one intake fan provided in a width direction at a lower portion of the rear bracket; and at least one exhaust fan provided in a width direction at an upper portion of the rear bracket; wherein, when viewed in a plan view, some of the intake fans and the exhaust fans are disposed forward toward the display panel, and the remaining parts are disposed forward toward the rear housing.

[0025] In addition, according to one embodiment, air drawn into the housing through the inlet is characterized in that it passes through a first clearance space existing between the rear bracket and the housing, a second clearance space existing between the rear of the display panel and the rear bracket in which the opening is formed, and a third clearance space existing between the front of the display panel and the transparent optical member and is exhausted to the outside through an outlet.

[0026] In addition, according to one embodiment, the inlet fan and the exhaust fan are characterized in that they are separately arranged as a first inlet fan and a first exhaust fan, which are arranged forward toward the second free space when viewed in a plan view, and a second inlet fan and a second exhaust fan, which are arranged forward toward the first free space.

[0027] In addition, according to one embodiment, the first inlet fan and the second inlet fan, and the first exhaust fan and the second exhaust fan are characterized in that, when viewed in a plan view, the second inlet fan is positioned between the first inlet fans and the second exhaust fan is positioned between the first exhaust fans, so that they are separated and arranged in a zigzag shape overall.

[0028] In addition, according to one embodiment, in a discharge mode for discharging internal heat to the outside, an inlet fan provided at the lower portion of the rear bracket and an exhaust fan provided at the exhaust port are operated to correspond to the position of the inlet formed in the housing, so that air introduced through the inlet is branched into the second free space and the third free space, and the air branched into the third free space absorbs heat while rising and is then discharged through the exhaust port, and the air branched into the second free space absorbs heat while rising and passes through the opening, and absorbs heat while rising in the first free space and is then discharged through the exhaust port.

[0029] In addition, according to one embodiment, in a circulation mode for circulating internal heat, the operation of the exhaust fan provided in the exhaust port is stopped, and the inlet fan provided at the lower portion of the rear bracket operates in response to the position of the inlet port formed in the housing, so that the internal air is divided into the second free space and the third free space, and the air divided into the third free space absorbs heat while rising and then absorbs heat while descending in the first free space and is redistributed into the third free space, and the air divided into the second free space absorbs heat while rising and then passes through the opening and absorbs heat while descending in the first free space and is redistributed into the second free space.

[0030] Also, according to one embodiment, the housing includes a front housing having the transparent optical member coupled thereto; and a rear housing having the inlet formed at the bottom and the outlet formed at the top.

[0031] In addition, according to another embodiment, the rear housing is characterized in that the first and second inlets are formed to face each other on the lower left and right sides of the rear housing and are divided and formed to face each other, and the first and second exhaust ports are formed to face each other on the upper left and right sides of the rear housing, and a first exhaust guide portion, a first rear bracket, a first display panel, and a first front housing are sequentially arranged in the front centering on the rear housing, and then air drawn into the rear housing through the first inlet is circulated inside the housing and then discharged through the first exhaust guide portion to the first exhaust port, and a second exhaust guide portion, a second rear bracket, a second display panel, and a second front housing are sequentially arranged in the rear centering on the rear housing, and then air drawn into the rear housing through the second inlet is circulated inside the housing and then discharged through the second exhaust guide portion to the second exhaust port.

[0032] In another embodiment, the rear bracket is further characterized in that the stop portion is provided with at least one circulation fan adjacent to the opening.

[0033] In another embodiment, the circulation fan is characterized in that it is arranged at a different location apart from the inlet fan and the exhaust fan when viewed in a plan view.

[0034] The present invention, as described above, has the effect of eliminating abnormal phenomena such as vibration and heat bodies caused by turbulence or vortex in the air circulating inside the housing by allowing the air to form smooth streamlines and circulate smoothly without interfering with each other through a branch-type suction fan additionally introduced inside the display device in addition to the conventional configuration.

[0035] Therefore, the aforementioned abnormal phenomena significantly reduced the heat dissipation and cooling efficiency within the device. By branching and circulating the airflow to prevent it from mixing with the incoming air, the heat dissipation and cooling efficiency within the display device can be increased, contributing to power savings.

[0036] In addition, in the process of controlling the temperature inside the display device, by allowing air to evenly circulate through the main heat-generating parts inside the device, the overall temperature distribution inside the device can be maintained constant, the time required to correct the temperature inside the device to the target value can be shortened, and the operation time of the fan that induces air flow can be reduced while allowing the temperature inside the device to accurately reach the target value.

[0037] In addition, it has the effect of suppressing the heat generated inside the advertising monitor used outdoors and the temperature rise inside the front of the display panel and the product due to direct sunlight, thereby preventing malfunction and shortening the product's lifespan, reducing the difference between the temperature inside the product and the outside temperature, and evenly distributing the temperature inside the product.

[0038] In addition, the temperature stability of the outdoor display device can be enhanced, the unit price can be reduced, and a compact product can be provided by discharging the heat inside the device to the outside through an improved air flow path without installing an expensive and large air conditioner inside the outdoor display device.

[0039] Figure 1 is an exploded perspective view showing a conventional outdoor display device disclosed in a prior art document.

[0040] Figure 2 is a cross-sectional view of the combination of Figure 1.

[0041] FIG. 3 is a drawing for explaining the air flow when the internal temperature rises in the conventional outdoor display device of FIG. 1.

[0042] Figures 4a and 4b are front perspective views and rear perspective views showing a power-saving cross-sectional outdoor display device equipped with a branched suction fan according to one embodiment of the present invention.

[0043] Figures 5a and 5b are cross-sectional views and exploded perspective views taken along line AA of Figure 4a, showing air flow when the internal temperature of the device rises.

[0044] Figures 6a and 6b are cross-sectional views and exploded perspective views taken along line AA of Figure 4a, showing air flow when the internal temperature of the device decreases.

[0045] FIG. 7 is a front perspective view showing a power-saving double-sided outdoor display device equipped with a branched suction fan according to another embodiment of the present invention.

[0046] Figures 8a, 8b and 8c are cross-sectional views taken along line AA of Figure 7, cross-sectional views taken along line AA-AA of Figure 8a and exploded perspective views, showing air flow when the internal temperature of the device rises.

[0047] Figures 9a, 9b and 9c are cross-sectional views taken along line AA of Figure 7, cross-sectional views taken along line AA-AA of Figure 9a and exploded perspective views, showing air flow when the internal temperature of the device decreases.

[0048] Figure 10 is a perspective view of the main body of the present invention, showing the display panel, rear bracket, and exhaust induction unit combined.

[0049] Figure 11 is a cross-sectional view taken along line BB of Figure 10.

[0050] Figure 12 is a rear perspective view of Figure 10.

[0051] Figure 13 is a cross-sectional view taken along line CC of Figure 10.

[0052] Figure 14a is an enlarged perspective view of the configuration of the intake fan of section 'A' of Figure 13.

[0053] Figure 14b is an enlarged perspective view of the exhaust fan of section 'B' of Figure 13.

[0054] The terminology used herein is merely used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this specification, it should be understood that the terms "comprises" or "has" or "has" or "has" indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in this specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0055] Unless otherwise defined herein, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs.

[0056] Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0057] Hereinafter, the configuration and operational relationship of a power-saving outdoor display device according to one embodiment of the present invention will be specifically examined with reference to the attached drawings.

[0058] FIGS. 4a and 4b are front and back perspective views showing a power-saving cross-sectional outdoor display device equipped with a branched suction fan according to one embodiment of the present invention.

[0059] Referring to the above drawings 4a and 4b, the configuration of a cross-sectional outdoor display device according to one embodiment of the present invention is as follows.

[0060] The cross-sectional outdoor display device (1000-S) of the present invention comprises: a display panel (1100) having a driving board (not shown) mounted on the rear; a rear bracket (1200) coupled to the display panel having the driving board mounted thereon and having an opening (1200a) formed therein for air flow; a housing (1500) that accommodates the rear bracket (1200) coupled to the display panel (1100), has a transparent optical member (1600) positioned on the front of the display panel coupled thereto, and has an inlet (1520a) formed therein for air intake and an outlet (1520b) formed therein for air exhaust; And it is composed of an exhaust guide section (1700) which is provided inside the housing (1500) and provides an isolated guide path so that the exhaust through the opening (1200a) of the rear bracket (1200) is not mixed with the inflow air inside the housing during the process of moving to the exhaust port (1520b) of the housing (1500).

[0061] First, the cross-sectional outdoor display device (1000-S) of the present invention comprises a display panel (1100) driven by electrical energy on the front, thereby displaying visual information to the user. At this time, a significant amount of heat is generated from the rear and front of the display panel (1100), and thus countermeasures related to this are required.

[0062] At this time, various electronic devices including a driving board and a set-top box (not shown) are mounted on the rear side of the display panel (1100), and since these emit a considerable amount of heat during operation, a countermeasure against this is required. In addition, the front side of the display panel (1100) emits heat on its own while being exposed to external light. That is, the front side of the display panel (1100) is heated not only by the heat emitted on its own, but also by external light that passes through the transparent optical member (1600) described below and reaches the front side of the display panel (1100), and therefore a countermeasure against this is required.

[0063] According to one embodiment, air introduced into the housing (1500) through the inlet (1520a) is exhausted to the outside through the outlet (1520b) via a first clearance space existing between the rear bracket (1200) and the housing (1500), a second clearance space existing between the rear surface of the display panel (1100) and the rear bracket (1200) in which the opening (1200a) is formed, and a third clearance space existing between the front surface of the display panel (1100) and the transparent optical member (1600).

[0064] In addition, the rear bracket (1200) is coupled to a display panel (1100) equipped with a driving board (not shown), and an opening (1200a) for air flow is formed. For example, the opening (1200a) formed in the rear bracket (1200) may be provided on at least both sides of an area where the driving board mounted on the display panel (1100) is located, and may be configured to enhance air flow between the first clearance space and the second clearance space.

[0065] In addition, the housing (1500) is composed of a front housing (1510) and a rear housing (1520). At this time, the rear housing (1520) is formed with an inlet (1520a) and an outlet (1520b) and accommodates a rear bracket (1200) coupled to a display panel (1100). In addition, a transparent optical member (1600) that covers the front of the display panel (10) is coupled to the front housing (1510).

[0066] Specifically, an inlet (1520a) for introducing external air is formed at the lower portion of the rear surface of the rear housing (1520), and an outlet (1520b) for discharging internal air is formed at the upper portion of the rear surface of the rear housing (1520). In addition, although not shown in the drawing, filters may be further provided at the inlet (1520a) and outlet (1520b) to prevent the introduction of foreign substances.

[0067] In addition, the transparent optical member (1600) coupled to the front of the display panel (1100) performs the function of protecting the display panel (1100). For example, glass or the like may be used as the material of the transparent optical member (1600), but is not limited thereto, and any material having transparency may be used as the transparent optical member (1600).

[0068] For example, the display panel (1100) and the transparent optical member (1600) may be configured to be optically bonded (OCB). Optical bonding is a method of maintaining a very strong bond by inducing intermolecular bonds on the bonding surfaces. When such optical bonding is applied, no adhesive or mechanical method is used to bond the display panel (1100) and the transparent optical member (1600), so no deformation, displacement, or stress is caused by bonding. In addition, the bonding strength is very high, the optical boundary surface disappears, and the adhesive strength is maintained for a long time, and there are advantages of excellent environmental characteristics.

[0069] In addition, the inlet (1520a) is formed at the lower rear side of the rear housing (1520), and the outlet (1520b) is formed at the upper rear side of the rear housing (1520), and the exhaust induction part (1700) is provided between the outlet (1520b) of the rear bracket (1200) and the rear housing (1520), and the opening at one end of the rear bracket (1200) and the opening at one end of the outlet (1520b) have the same square tube shape.

[0070] Hereinafter, the specific operation of a power-saving outdoor display device equipped with a branch-type suction fan according to one embodiment of the present invention will be described by dividing it into an exhaust mode and a circulation mode.

[0071] First, when the temperature inside the device (1000-S) of the present invention rises above a certain standard value, a discharge mode is executed to discharge the internal heat to the outside.

[0072] Figures 5a and 5b are cross-sectional views taken along line AA of Figure 4a and exploded perspective views, respectively, showing air flow when the internal temperature of the device rises.

[0073] Referring to the above drawings 5a and 5b, air flow (see red arrow) in exhaust mode that exhausts heat inside the device (1000-S) to the outside is disclosed.

[0074] In exhaust mode, both the inlet fan (1810) and the exhaust fan (1820) operate. At this time, the inlet fan (1810) is provided at the lower portion of the rear bracket (1200) so as to correspond to the position of the inlet port (1520a) formed in the rear housing (1520), and the exhaust fan (1820) is provided at the upper portion of the rear bracket (1200).

[0075] First, the air drawn in through the inlet (1520a) by the operation of the inlet fan (1810) is divided into a second free space and a third free space. As described above, the third free space is a space existing between the front of the display panel (1100) and the transparent optical member (1600), and the second free space is a space existing between the rear of the display panel (1100) and the rear bracket (1200).

[0076] The air branched into the third free space rises and absorbs the heat existing in the third free space, i.e., the space between the front of the display panel (1100) and the transparent optical member (1600). The air that has absorbed the heat in the third free space is guided to the exhaust port (1520b) through the rear bracket (1200) by the operation of the exhaust fan (1820) and is then discharged to the outside.

[0077] The air branched into the second free space rises and absorbs the heat existing in the second free space, i.e., the space between the rear of the display panel (1100) and the rear bracket (1200). The air that has absorbed the heat in the second free space passes through the opening (1200a) formed in the rear bracket (1200) and then rises in the first free space by the operation of the exhaust fan (1820) and absorbs the heat existing in the first free space, i.e., the space between the rear bracket (1200) and the rear housing (1520). Thereafter, the air that has absorbed the heat in the first free space is guided to the exhaust port (1520b) by the operation of the exhaust fan (1820) and discharged to the outside.

[0078] Therefore, the above discharge mode is controlled to lower the temperature when the temperature inside the device rises above an appropriate value so that the temperature inside the device is maintained at an appropriate value.

[0079] According to this configuration in the exhaust mode, since the air evenly circulates through the main heat-generating parts of the outdoor display device, i.e., the first clearance space between the rear bracket (20) and the rear housing (50), the second clearance space between the rear of the display panel (10) and the rear bracket (20), and the third clearance space between the front of the display panel (10) and the transparent optical member (60), the overall temperature distribution inside the device becomes constant, the time required to correct the temperature inside the device to a target value is shortened, and the temperature inside the device can accurately reach the target value while reducing the operating time of the inlet fan (210) and the exhaust fan (510).

[0080] In short, the above discharge mode is controlled so that the inlet fan provided at the lower portion of the rear bracket and the discharge fan provided at the discharge port operate in response to the position of the inlet port formed in the housing, so that the air introduced through the inlet port branches into the second free space and the third free space, the air branched into the third free space absorbs heat as it rises and is then discharged through the discharge port, and the air branched into the second free space absorbs heat as it rises and passes through the opening, and then absorbs heat as it rises in the first free space and is then discharged through the discharge port.

[0081]

[0082] Meanwhile, when the temperature inside the device drops below a certain standard, a circulation mode is activated that circulates the internal heat within the device rather than discharging it to the outside.

[0083] Figures 6a and 6b are cross-sectional views and exploded perspective views taken along line AA of Figure 4a, showing air flow when the internal temperature of the device decreases.

[0084] Referring to the above drawings 6a and 6b, air flow in a circulation mode that circulates heat inside the device (1000) is disclosed.

[0085] In circulation mode, the exhaust fan (1820) stops operating and only the intake fan (1810) operates.

[0086] First, the internal air is divided into a second free space and a third free space by the operation of the intake fan (1810). At this time, the second free space is a space existing between the rear surface of the display panel (1100) and the rear bracket (1200), and the third free space is a space existing between the front surface of the display panel (1100) and the transparent optical member (1600).

[0087] The air branched into the third free space rises and absorbs the heat existing in the third free space, that is, the space between the front of the display panel (1100) and the transparent optical member (1600). The air that has absorbed the heat in the third free space is guided to the first free space by the operation of the intake fan (1810), and the air that has been guided to the first free space descends by the operation of the intake fan (1810) and absorbs the heat existing in the first free space, that is, the space between the rear bracket (1200) and the rear housing (1500). Subsequently, the air that has absorbed the heat in the first free space is guided to the third free space by the operation of the intake fan (1810) and is redistributed.

[0088] Continuing, the air branched into the second free space rises and absorbs the heat existing in the second free space, i.e., the space between the rear of the display panel (1100) and the rear bracket (1200). The air that has absorbed the heat in the second free space passes through the opening (1200a) formed in the rear bracket (1200) and then descends in the first free space by the operation of the intake fan (1810) and absorbs the heat existing in the first free space, i.e., the space between the rear bracket (1200) and the rear housing (1520). The air that has absorbed the heat in the first free space is induced into the first free space by the operation of the intake fan (1810) and is redistributed.

[0089] Therefore, the circulation mode controls the temperature inside the device (1000-S) to be increased when the temperature inside the device drops below an appropriate value, thereby maintaining the temperature inside the device at an appropriate value.

[0090] According to this configuration in circulation mode, in the process of increasing the overall internal temperature by utilizing the heat inside the device (1000-S), the air is evenly circulated through the main heat-generating parts of the cross-sectional outdoor display device (1000-S), i.e., the first clearance space between the rear bracket (1200) and the rear housing (1520), the second clearance space between the rear of the display panel (1100) and the rear bracket (1200), and the third clearance space between the front of the display panel (1100) and the transparent optical member (1600), so that the overall temperature distribution inside the device (1000-S) becomes constant, the time required to correct the temperature inside the device (1000-S) to the target value is shortened, and the temperature inside the device (1000-S) can accurately reach the target value while reducing the operating time of the intake fan (1810).

[0091] In short, the circulation mode is controlled so that the operation of the exhaust fan (1820) provided in the exhaust port (1500b) is stopped, and the inlet fan (1810) provided at the lower portion of the rear bracket (1200) operates to correspond to the position of the inlet port (1520a) formed in the rear housing (1520), so that the internal air is divided into the second free space and the third free space, the air divided into the third free space absorbs heat as it rises, and then absorbs heat as it descends in the first free space and is redistributed into the third free space, and the air divided into the second free space absorbs heat as it rises, passes through the opening (1200a), and then absorbs heat as it descends in the first free space and is then redistributed into the second free space.

[0092] In addition, since a plurality of circulation fans (1830) are provided in the middle portion of the rear bracket (1200), air circulation is promoted between the first free space and the second free space.

[0093]

[0094] Meanwhile, according to another embodiment, the present invention has a configuration of a double-sided outdoor display device (1000-D) as follows.

[0095] FIG. 7 is a front perspective view showing a power-saving double-sided outdoor display device equipped with a branched suction fan according to another embodiment of the present invention, and FIGS. 8a, 8b, and 8c are a cross-sectional view taken along line AA of FIG. 7, a cross-sectional view taken along line AA-AA of FIG. 8a, and an exploded perspective view, which are drawings showing air flow when the internal temperature of the device rises, and FIGS. 9a, 9b, and 9c are a longitudinal cross-sectional view taken along line AA of FIG. 7, a cross-sectional view taken along line AA-AA of FIG. 9a, and an exploded perspective view, which are drawings showing air flow when the internal temperature of the device falls, and FIG. 10 is a perspective view of a main part of the present invention, showing a state in which a display panel, a rear bracket, and an exhaust guide unit are combined, and FIG. 11 is a cross-sectional view taken along line BB of FIG. 10, FIG. 12 is a rear perspective view of FIG. 10, and FIG. 13 is a cross-sectional view taken along line CC of FIG. 10.

[0096] Referring to the above drawings 7 to 13, a double-sided outdoor display device (1000-D) of the present invention according to another embodiment is configured as follows.

[0097] First, the first and second inlets (1520a-1, 1520a-2) are formed to face each other on the lower left and right sides of the rear housing (1520), and the first and second outlets (1520b-1, 1520b-2) are formed to face each other on the upper left and right sides of the rear housing (1520). At this time, referring to FIG. 7, in the double-sided outdoor display device (1000-D), unlike the single-sided outdoor display device (1000-S) discussed above, the rear housing (1520) has a structure in which the front and the back are open, and the first and second inlets (1520a-1, 1520a-2) and the first and second outlets (1520b-1, 1520b-2) are formed on the lower and upper left and right sides of the side, respectively.

[0098] In addition, a first exhaust induction unit (1700-1), a first rear bracket (1200-1), a first display panel (1100-1), and a first front housing (1510-1) are sequentially arranged in front of the rear housing (1520), and accordingly, air introduced into the rear housing (1520) through the first inlet (1520a-1) is circulated within the front and rear housings (1510, 1520) and then discharged through the first exhaust induction unit (1700-1) to the first outlet (1520b-1).

[0099] Likewise, a second exhaust induction unit (1700-2), a second rear bracket (1200-2), a second display panel (1100-2), and a second front housing (1510-2) are sequentially arranged at the rear of the rear housing (1520) as the center, and accordingly, air introduced into the rear housing (1520) through the second inlet (1520a-2) is circulated within the front and rear housings (1510, 1520) and then discharged through the second exhaust induction unit (1700-2) to the second outlet (1520b-2).

[0100] In addition, referring to FIGS. 8a to 13, as described above, the first and second inlets (1520a-1, 1520a-2) are formed on the left and right sides of the lower side of the rear housing (1520), respectively, and the first and second outlets (1520b-1, 1520b-2) are formed on the left and right sides of the upper side of the rear housing (1520), respectively. Preferably, the shapes of the first and second exhaust induction parts (1700-1, 1700-2) also have shapes corresponding thereto.

[0101] According to one embodiment, first, the shape of the first exhaust induction section (1700-1) will be described in detail. The width of the opening (1700a) on the side of the first rear bracket (1200-1) is long in the left-right direction, and as it goes toward the first exhaust port (1520b-1), the width of the passage gradually narrows, and the opening (1700b) connected to the exhaust port has a trumpet shape bent at a 90 degree angle.

[0102] At this time, the shape of the second exhaust induction unit (1700-2) is also the same as the shape of the first exhaust induction unit (1700-1), and the first and second exhaust induction units (1700-1, 1700-2) are symmetrically arranged with their backs facing each other, as shown in FIGS. 8a to 9c.

[0103]

[0104] Meanwhile, referring to FIGS. 10 to 13, the suction fan of the rear bracket (1200) has the following characteristic arrangement structure to promote branching and circulation of air inside the housing (1510, 1520).

[0105] At this time, the suction fan refers to an inlet fan (1810) and an exhaust fan (1820). In addition, the suction fan may further include a circulation fan (1830).

[0106] According to one embodiment, the suction fans, i.e., the intake fan (1810) and the exhaust fan (1820), may be separately arranged as first and second intake fans (1810-1, 1810-2) and first and second exhaust fans (1820-1, 1820-2) having different arrangement positions, respectively.

[0107] More specifically, referring to FIGS. 11 and 13, the first intake fan and the first exhaust fan (1810-1, 1820-1) may be positioned forward toward the second free space (toward the display panel), while the second intake fan and the second exhaust fan (1810-2, 1820-2) may be positioned forward toward the first free space (toward the rear housing).

[0108] For example, referring to FIGS. 11 and 12, when viewed on a plan, the first intake fan (1810-1) and the first exhaust fan (1820-1) are arranged six at regular intervals along the width direction of the rear bracket (1200), while the second intake fan (1810-2) and the second exhaust fan (1820-2) are arranged three at each between the first (1810-1) and the first exhaust fan (1820-1).

[0109] That is, when viewed in plan view, the first inlet fan and the second inlet fan (1810-1, 1810-2), and the first exhaust fan and the second exhaust fan (1820-1, 1820-2) can be separated and arranged in a zigzag shape as a whole, with the second inlet fan (1810-2) being arranged between the first inlet fans (1810-1) and the second exhaust fan (1820-2) being arranged between the first exhaust fans (1820-1).

[0110] Accordingly, the first and second intake fans (1810-1, 1810-2) and the first and second exhaust fans (1820-1, 1820-2) as described above are all separately arranged at different locations in the front-rear and width directions, thereby forming non-overlapping streamlines to ensure smooth branching and circulation of air inside the housing (1510, 1520).

[0111] In addition, referring to FIG. 11, the circulation fan (1830) is also spatially separated from the intake fan (1810) and the exhaust fan (1820) at different locations, so that the circulation air can circulate more smoothly inside the housing (1510, 1520) without overlapping with the intake air and exhaust air.

[0112] Hereinafter, the configuration of the inlet fan and exhaust fan of the present invention will be examined in more detail as follows.

[0113] Fig. 14a is an enlarged perspective view of the configuration of the inlet fan of section 'A' of Fig. 13, and Fig. 14b is an enlarged perspective view of the configuration of the exhaust fan of section 'B' of Fig. 13.

[0114] First, referring to the above-described FIG. 14a, the intake fan (1810) of the present invention comprises a plurality of first intake fans (1810-1) arranged at regular intervals along the width direction of the display panel (1100) to transfer air (intake) flowing in from the first free space to the third free space along the direction in which the intake air flows in. At this time, a plurality of second intake fans (1810-2) are arranged between the first intake fans (1810-1) to branch off a portion of the air (intake) flowing in from the first free space and transfer it to the second free space along the height direction of the first display panel (1100-1).

[0115] In addition, the first intake fan (1810-1) is positioned forward toward the third free space so that the intake air is connected to the airflow toward the third free space, and the second intake fan (1810-2) is positioned forward toward the second free space relative to the first intake fan (1810-1) so as to guide some of the intake air toward the second free space.

[0116] That is, referring to FIG. 13, the first intake fan (1810-1) is positioned forward toward the third clearance space so that the air outlet (left side in the drawing) is positioned almost in line with the front of the first display panel (1100-1) on a vertical line extending from the first display panel (1100-1), and the second intake fan (1810-2) is positioned forward toward the second clearance space so that the air outlet (left side in the drawing) is positioned toward the back of the display.

[0117] Accordingly, since the first intake fan (1810-1) and the second intake fan (1810-2) are separately arranged on the front (toward the third free space) and the rear (toward the second free space) of the first display panel (1100-1), the intake air introduced through the first free space is efficiently divided into the third free space and the second free space without being entangled with each other. In other words, the divided arrangement configuration of the first intake fan (1810-1) and the second intake fan (1810-2) described above forms an intake (streamline) that is divided without mixing.

[0118] Meanwhile, referring to the above-described FIG. 14b, the exhaust fan (1820) of the present invention comprises a plurality of first exhaust fans (1820-1) arranged at regular intervals along the width direction of the first display panel (1100-1) to transfer air (exhaust) flowing in from the third free space to the first free space along the direction in which the exhaust flows in. In addition, a plurality of second exhaust fans (1820-2) are arranged between the first exhaust fans (1820-1) to branch off a portion of the air (exhaust) flowing in from the third free space and transfer it to the second free space along the height direction of the first display panel (1100-1).

[0119] At this time, the first exhaust fan (1820-1) is positioned forward toward the third free space so that the inflowing exhaust air is connected to the first free space, and the second exhaust fan (1820-2) is positioned forward toward the second free space relative to the first exhaust fan (1820-1) so as to guide some of the inflowing exhaust air toward the second free space.

[0120] That is, referring to FIG. 13, the first exhaust fan (1820-1) is positioned forward toward the third clearance space so that the air inlet (left side in the drawing) is positioned almost in line with the front surface of the first display panel (1100-1) on a vertical line extending from the first display panel (1100-1), and the second exhaust fan (1820-2) is positioned forward toward the second clearance space so that the air outlet (right side in the drawing) is positioned toward the back surface of the first display panel (1100-1).

[0121] Here, referring to FIG. 11, holes (1200b) are formed at regular intervals in line with the first exhaust fan (1820-1) on the front side of the first rear bracket (1200-1), and exhaust air flows into the first exhaust fan (1820-1) through the holes (1200b). At this time, the holes (1200b) are not formed in front of the second exhaust fan (1820-2), and accordingly, some of the exhaust air flowing into the first exhaust fan (1820-1) through the holes (1200b) is branched off to the second exhaust fan (1820-2) and then delivered to the second clearance space. Continuing, the exhaust air branched into the second free space passes through the opening (1200a) of the first rear bracket (1200-1) and the circulation fan (1830) and circulates within the second free space, then rises while containing heat, joins with the exhaust air, and is finally discharged to the outside through the first exhaust induction section (1700-1). Therefore, by the split arrangement configuration of the first exhaust fan (1820-1) and the second exhaust fan (1820-2) described above, a branched exhaust air (streamline) is formed without mixing with each other.

[0122] Accordingly, the first exhaust fan (1820-1) and the second exhaust fan (1820-2) are each separately arranged on the front (towards the third free space) and the rear (towards the second free space) sides of the first display panel (1100-1), so that the exhaust air flowing in through the third free space is efficiently divided into the first free space and the second free space without being entangled with each other.

[0123] Meanwhile, in the case of a double-sided display according to another embodiment, all other configurations, including the split arrangement configuration of the first and second intake fans (1810-1, 1810-2) and the first and second exhaust fans (1820-1, 1820-2) on the second display panel (1100-2), are mutually symmetrically identical to the configuration of the single-sided display described above, so a detailed description thereof will be omitted.

[0124] For reference, in the above drawing, the unexplained symbol 1300 is a drive circuit cover, 1410 is an air inlet filter, and 1420 is an air outlet filter.

[0125]

[0126] In addition, the present invention is not limited to the above-described embodiment, and the same effect can be created even when the detailed configuration, number, and arrangement structure of the device are changed. Therefore, it is stated that a person having ordinary skill in the art can add, delete, and modify various configurations within the scope of the technical idea of ​​the present invention.

[0127]

[0128] Description of drawing symbols

[0129] 1000-S, 1000-D: Single-sided outdoor display device (of the present invention), double-sided outdoor display device

[0130] 1100: Display panel

[0131] 1200: Rear bracket

[0132] 1200a, 1200b: opening, through hole

[0133] 1300: Drive circuit cover

[0134] 1410, 1420: Air inlet filter, air outlet filter

[0135] 1500, 1510, 1520: Housing, Front Housing, Rear Housing

[0136] 1600: Transparent optical element

[0137] 1700, 1700-1, 1700-2: (cross-section) exhaust induction section, (double-sided) first exhaust induction section, second exhaust induction section

[0138] 1810, 1810-1, 1810-2: Intake fan, first intake fan, second intake fan

[0139] 1820, 1820-1, 1820-2: exhaust fan, first exhaust fan, second exhaust fan

[0140] 1830: Circulating fan

Claims

1. Display panel with drive board mounted on the back; A rear bracket coupled to the display panel having the above drive board and having openings formed therein for airflow; A housing that accommodates a rear bracket coupled to the display panel, has a transparent optical member positioned on the front side of the display panel coupled thereto, and has an inlet for introducing air and an outlet for discharging air formed therein; At least one inlet fan provided along the width direction at the lower portion of the rear bracket; and At least one exhaust fan provided along the width direction on the upper part of the rear bracket; The above inlet fan and exhaust fan are characterized in that, when viewed from a flat surface, some are positioned forward toward the display panel and the remaining parts are positioned forward toward the rear housing. Power-saving outdoor display device with branch-type suction fan.

2. In paragraph 1, The air that flows into the housing through the above inlet port, It is characterized in that the air is exhausted to the outside through the exhaust port via the first clearance space existing between the rear bracket and the housing, the second clearance space existing between the rear of the display panel and the rear bracket in which the opening is formed, and the third clearance space existing between the front of the display panel and the transparent optical member. Power-saving outdoor display device with branch-type suction fan.

3. In paragraph 2, The above inlet and exhaust fans are, when viewed in plan, It is characterized by being separately arranged as a first intake fan and a first exhaust fan that are positioned forward toward the second free space, and a second intake fan and a second exhaust fan that are positioned forward toward the first free space. Power-saving outdoor display device with branch-type suction fan.

4. In paragraph 3, The first inlet fan and the second inlet fan, and the first exhaust fan and the second exhaust fan are characterized in that, when viewed on a plane, the second inlet fan is placed between the first inlet fans and the second exhaust fan is placed between the first exhaust fans, so that they are separated and arranged in a zigzag shape overall. Power-saving outdoor display device with branch-type suction fan.

5. In paragraph 2, In exhaust mode, which discharges internal heat to the outside, The inlet fan provided at the lower part of the rear bracket and the exhaust fan provided at the exhaust port operate in response to the position of the inlet port formed in the housing. The air flowing in through the above inlet is divided into the second free space and the third free space, The air branched into the third free space above rises, absorbs heat, and is discharged through the exhaust port. The air branched into the second free space rises and absorbs heat, passes through the opening, rises in the first free space, absorbs heat, and is discharged through the exhaust port. Power-saving outdoor display device with branch-type suction fan.

6. In paragraph 2, In circulation mode, which circulates the heat inside, The operation of the exhaust fan provided in the above exhaust port stops, and the inlet fan provided in the lower part of the rear bracket operates corresponding to the position of the inlet port formed in the housing, so that the internal air is divided into the second free space and the third free space. The air branched into the third free space absorbs heat as it rises, and then absorbs heat as it descends in the first free space and is redistributed into the third free space. The air branched into the second free space absorbs heat as it rises, passes through the opening, and descends from the first free space, absorbing heat before being redistributed into the second free space. Power-saving outdoor display device with branch-type suction fan.

7. In paragraph 1, The above housing, A front housing having the above transparent optical member combined therewith; and A rear housing including the inlet formed at the bottom and the outlet formed at the top; Power-saving outdoor display device with branch-type suction fan.

8. In paragraph 7, The first and second inlets are formed to face each other on the lower left and right sides of the rear housing and are divided so that they face each other, and the first and second outlets are formed to face each other on the upper left and right sides of the rear housing and are divided so that they face each other. With the rear housing as the center, the first exhaust induction member, the first rear bracket, the first display panel, and the first front housing are sequentially arranged in the front, and then the air that enters the rear housing through the first inlet is circulated inside the housing and then discharged through the first exhaust induction member to the first outlet. A double-sided display structure characterized in that a second exhaust induction part, a second rear bracket, a second display panel, and a second front housing are sequentially arranged around the rear housing, and then air that flows into the rear housing through the second inlet is circulated inside the housing and then discharged through the second exhaust induction part to the second exhaust port. Power-saving outdoor display device with branch-type suction fan.

9. In paragraph 1, The above rear bracket is characterized in that the stop portion is further provided with at least one circulation fan adjacent to the opening. Power-saving outdoor display device with branch-type suction fan.

10. In paragraph 9, The above circulation fan is characterized in that it is placed at a different location apart from the inlet fan and the exhaust fan when viewed on a plane. Power-saving outdoor display device with branch-type suction fan.

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