Heat dissipation structure of display equipment and display equipment

Abstract

The utility model relates to a heat dissipation structure of a display device and the display device, the heat dissipation structure of the display device comprises a rear shell, a back plate and a wind shield, and the rear shell is provided with an air inlet and an air outlet which are spaced from each other; the back plate is connected to the rear shell, a gap is formed between the back plate and the rear shell to define a channel for air circulation, and the air inlet, the channel and the air outlet are communicated to form a heat dissipation air channel; the peripheries of the wind shield air inlet and the wind outlet are both surrounded by wind shields, and the wind shields are arranged on the side, facing the back plate, of the rear shell. The air inlet and the air outlet which are arranged at intervals are formed in the rear shell, and the air inlet and the air outlet are communicated with the channel formed between the rear shell and the back plate to form the heat dissipation air channel for air to enter and exit, so that air circulation is realized to dissipate heat of the internal structure of the display equipment. And the wind shields surround the peripheries of the air inlet and the air outlet to prevent the air flow from generating vortex at the air inlet and the air outlet, so that the heat dissipation effect can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display heat dissipation structures, in particular to a heat dissipation structure of a display device and the display device. Background Art

[0002] With the development of science and technology, display devices such as televisions, commercial large screens, and display screens are widely used in public places such as showrooms and conference rooms, as well as in homes.

[0003] Since the display device generates heat during use, which causes the display device to heat up, the heat dissipation performance of the heat dissipation structure in the display device is particularly important. The air outlet of the heat dissipation structure in the display device in the related art is not sealed, so that the air is easy to form vortices at the air outlet, thereby reducing the heat dissipation efficiency. Utility Model Content

[0004] Based on this, it is necessary to provide a heat dissipation structure of a display device and a display device to address the technical problem that the heat dissipation structure of the display device in the related art causes air to be contained at the air outlet to form a vortex, thereby reducing the heat dissipation efficiency.

[0005] A heat dissipation structure of a display device, the heat dissipation structure of the display device comprising:

[0006] The rear shell is provided with an air inlet and an air outlet spaced apart from each other;

[0007] A back plate connected to the rear shell, wherein a gap is provided between the back plate and the rear shell to define a channel for air circulation, and the air inlet, the channel and the air outlet are connected to form a heat dissipation duct;

[0008] A windshield, the periphery of the air inlet and the air outlet are surrounded by the windshield, and the windshield is arranged on a side of the rear shell facing the back plate;

[0009] An air inlet fan, at least one of which is disposed in a cavity defined by the air inlet and the wind shield, and an air outlet surface of the air inlet fan faces the back plate;

[0010] An exhaust fan, at least one of the exhaust fans is arranged in a cavity defined by the air outlet and the wind shield, and the air inlet surface of the exhaust fan faces the back plate.

[0011] The present technical solution provides a heat dissipation structure of a display device, which forms a heat dissipation duct for air to enter and exit by setting an air inlet and an air outlet spaced apart on the rear shell, and connecting the air inlet and the air outlet with the channel formed between the rear shell and the back plate, thereby realizing air circulation to dissipate heat for the internal structure of the display device. An air inlet fan is set at the air inlet to increase the circulation rate of air entering the heat dissipation duct at the air inlet; correspondingly, an exhaust fan is set at the air outlet to increase the circulation rate of air when it is discharged from the air outlet. With the combination of the two, the circulation efficiency of the air in the entire heat dissipation duct, that is, the wind speed in the entire heat dissipation duct, can be effectively improved, thereby improving the heat dissipation effect. By enclosing a windshield plate at the periphery of the air inlet and the air outlet, and setting the air inlet fan in the cavity formed by the air inlet and the windshield plate, the airflow is guided by the windshield plate, thereby preventing the airflow accelerated by the air inlet fan from the air inlet from changing its wind direction instantly, resulting in vortices at the air inlet. Accordingly, the exhaust fan is arranged in the cavity formed by the air outlet and the wind shield, and the airflow is guided by the wind shield to prevent the airflow accelerated by the exhaust fan from changing its direction instantly and causing eddy currents at the air outlet. This arrangement can prevent the airflow from generating eddy currents at the air inlet and the air outlet, thereby reducing the energy loss caused by the generation of eddy currents, and thus effectively improving the heat dissipation effect.

[0012] In one of the embodiments, the wind shield and the rear shell are integrally formed.

[0013] By configuring the windshield and the rear shell to be integrally formed, the eddy current phenomenon can be reduced while the integration performance of the rear shell and the windshield can be improved, the number of parts can be reduced, the production cost can be reduced, and the installation efficiency of the display device can be improved.

[0014] In one embodiment, the air inlet fan, the passage between the air inlet and the air outlet, and the exhaust fan form a first heat dissipation duct. The first heat dissipation duct formed by the above structure has the advantages of fast air circulation rate and good heat dissipation effect.

[0015] In one embodiment, the middle portion of the rear shell on one side facing the back plate is recessed in a direction away from the back plate to form a recessed cavity, the periphery of the back plate is affixed to and fixedly connected to the outer edge corresponding to the recessed cavity on the rear shell, and the channel is defined between the back plate and the recessed cavity.

[0016] A recessed cavity is provided on the rear shell to facilitate installation of an air intake fan and an air exhaust fan. In addition, the recessed cavity is provided to provide a gap between the rear shell and the back panel, thereby forming a channel for air circulation between the rear shell and the back panel, thereby achieving heat dissipation for the back panel and other components in the display device.

[0017] In one embodiment, a plurality of first ventilation holes are arranged at intervals around the bottom wall of the concave cavity. By arranging a plurality of first ventilation holes at intervals around the bottom wall of the concave cavity, the air circulation effect is enhanced, thereby improving the heat dissipation effect.

[0018] In one embodiment, the first ventilation holes are arranged in an array in the circumferential direction of the cavity bottom wall. By arranging the plurality of first ventilation holes in an array in the circumferential direction of the cavity bottom wall, the arrangement of the first ventilation holes is more uniform, thereby making the heat dissipation more uniform.

[0019] In one embodiment, the air inlet fan, the passage between the air inlet and the first ventilation hole, and the first through holes surrounding the air inlet form a second heat dissipation duct;

[0020] And / or, a third heat dissipation duct is formed between the first ventilation holes arranged around the air outlet, the passage between the air outlet and the first ventilation holes, and the exhaust fan.

[0021] Through the above structure, a second heat dissipation duct is formed on the air inlet side, and a third heat dissipation duct is formed on the air outlet side. The display device is cooled through different heat dissipation ducts, thereby improving the heat dissipation effect of the entire display device.

[0022] In one embodiment, a plurality of second ventilation holes are arranged at intervals on the edges where the strong side wall of the concave cavity and the side of the rear shell facing the back plate are connected. By arranging the second ventilation holes on the edges where the cavity side wall of the concave cavity and the side of the rear shell are connected, the air entering and exiting from the second through holes can directly dissipate heat to the back plate, thereby improving the heat dissipation effect of the back plate.

[0023] In one of the embodiments, the air inlet is a blower fan.

[0024] A display device comprises the heat dissipation structure of the display device as described above.

[0025] Beneficial effects of the utility model:

[0026] The utility model provides a heat dissipation structure of a display device, which forms a heat dissipation duct for air to enter and exit by arranging an air inlet and an air outlet spaced apart on the rear shell, and connecting the air inlet and the air outlet with the channel formed between the rear shell and the back plate, thereby realizing air circulation to dissipate heat for the internal structure of the display device. An air inlet fan is arranged at the air inlet to increase the circulation rate of air entering the heat dissipation duct at the air inlet; correspondingly, an exhaust fan is arranged at the air outlet to increase the circulation rate of air when it is discharged from the air outlet. With the combination of the two, the circulation efficiency of the air in the entire heat dissipation duct, that is, the wind speed in the entire heat dissipation duct, can be effectively improved, thereby improving the heat dissipation effect. And by surrounding the periphery of the air inlet and the air outlet with a wind shield plate, and arranging the air inlet fan in the cavity formed by the air inlet and the wind shield plate, the airflow is guided by the wind shield plate, thereby preventing the airflow accelerated by the air inlet fan from the air inlet from changing its wind direction instantly, resulting in vortex at the air inlet. Accordingly, the exhaust fan is arranged in the cavity formed by the air outlet and the wind shield, and the airflow is guided by the wind shield to prevent the airflow accelerated by the exhaust fan from changing its direction instantly and causing eddy currents at the air outlet. This arrangement can prevent the airflow from generating eddy currents at the air inlet and the air outlet, thereby reducing the energy loss caused by the generation of eddy currents, and thus effectively improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a heat dissipation structure of a display device provided in one embodiment of the utility model;

[0028] Figure 2 A schematic diagram of the structure of the heat dissipation structure of a display device provided by an embodiment of the utility model at another viewing angle;

[0029] Figure 3 A schematic diagram of the structure of a rear housing in a heat dissipation structure of a display device provided by an embodiment of the utility model;

[0030] Figure 4 A schematic structural diagram of a rear housing in a heat dissipation structure of a display device provided by an embodiment of the utility model at another viewing angle;

[0031] Figure 5 A cross-sectional view of a heat dissipation structure of a display device provided by an embodiment of the utility model;

[0032] Figure 6 for Figure 5 A is a partial enlarged schematic diagram;

[0033] Figure 7 This is a rendering of a heat dissipation duct in the prior art;

[0034] Figure 8A heat dissipation effect diagram of the heat dissipation structure of the display device provided in an embodiment of the utility model.

[0035] Reference numerals:

[0036] Rear shell 100; air inlet 110; air outlet 120; recessed cavity 130; first ventilation hole 131; second ventilation hole 132; mounting protrusion 133; wind shield 200; air inlet fan 300; exhaust fan 400; back plate 500; heat dissipation duct 600; first heat dissipation duct 610; second heat dissipation duct 620; third heat dissipation duct 630. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0043] With the development of science and technology, display devices such as televisions, commercial large screens, and display screens are widely used in public places such as showrooms and conference rooms, as well as in homes. Since display devices generate heat during use, which causes the display devices to heat up, the heat dissipation performance of the heat dissipation structure in the display device is particularly important. The air outlet of the heat dissipation structure in the display device in the related art is not sealed with an air duct, which makes it easy for air to form vortices at the air outlet, thereby reducing the heat dissipation efficiency.

[0044] Based on this, the utility model provides a heat dissipation structure of a display device, which prevents the generation of eddies at the air inlet and outlet by enclosing windshields at the air inlet and outlet, so that the air flow has directionality, thereby improving the heat dissipation performance of the display device. An embodiment of the utility model also provides a display device, which includes components such as a main control board, a power board, and a liquid crystal screen. The display device generates heat during operation, causing each component to heat up, so a ventilation and heat dissipation structure needs to be set to dissipate heat for the display device. The display device provided in this embodiment includes the heat dissipation structure of the display device as described below, and the heat dissipation structure of the display device provided by the utility model is applied to the display device to dissipate heat for the internal structure of the display device. By enclosing windshields 200 at the periphery of the air inlet 110 and the air outlet 120, eddies are prevented from being generated at the air inlet 110 and the air outlet 120, thereby effectively improving the heat dissipation effect.

[0045] See also Figures 1 to 6 An embodiment of the utility model provides a heat dissipation structure of a display device, which includes a rear shell 100, a back plate 500 and a windshield 200. The rear shell 100 is provided with an air inlet 110 and an air outlet 120 spaced apart from each other; the back plate 500 is connected to the rear shell 100, and there is a gap between the back plate 500 and the rear shell 100 to define a channel for air circulation, and the air inlet 110, the channel and the air outlet 120 are connected to form a heat dissipation duct 600; the periphery of the air inlet 110 and the air outlet 120 of the windshield 200 are surrounded by the windshield 200, and the windshield 200 is arranged on the side of the rear shell 100 facing the back plate. The heat dissipation structure of the display device also includes an air inlet fan 300 and an exhaust fan 400. At least one air inlet fan 300 is arranged in a cavity jointly defined by the air inlet 110 and the wind shield 200, and the air outlet surface of the air inlet fan 300 is arranged toward the back plate 500; at least one exhaust fan 400 is arranged in a cavity jointly defined by the air outlet 120 and the wind shield 200, and the air inlet surface of the exhaust fan 400 is arranged toward the back plate 500.

[0046] The present technical solution provides a heat dissipation structure of a display device, by setting an air inlet 110 and an air outlet 120 spaced apart on the rear housing 100, and connecting the air inlet 110 and the air outlet 120 with the channel formed between the rear housing 100 and the back plate 500, so as to form a heat dissipation duct 600 for air to enter and exit, thereby realizing air circulation to dissipate heat for components disposed inside the back plate 500. An air inlet fan 300 is provided at the air inlet 110 to increase the circulation rate of air at the air inlet 110 when it enters the heat dissipation duct 600; accordingly, an exhaust fan 400 is provided at the air outlet 120 to increase the circulation rate of air when it is discharged from the air outlet 120. With the combination of the two, the circulation efficiency of the air in the entire heat dissipation duct 600, that is, the wind speed in the entire heat dissipation duct 600, can be effectively improved, thereby improving the heat dissipation effect. By surrounding the windshield 200 at the periphery of the air inlet 110 and the air outlet 120, and setting the air inlet fan 300 in the cavity formed by the air inlet 110 and the windshield 200, the airflow is guided by the windshield 200, thereby preventing the airflow accelerated by the air inlet fan 300 from changing its direction instantly at the air inlet 110, thereby causing eddy currents to be generated at the air inlet 110. Accordingly, the exhaust fan 400 is set in the cavity surrounded by the air outlet 120 and the windshield 200, and the airflow is guided by the windshield 200, thereby preventing the airflow accelerated by the exhaust fan 400 from changing its direction instantly, thereby causing eddy currents to be generated at the air outlet 120. Such a setting can prevent the airflow from generating eddy currents at the air inlet 110 and the air outlet 120, thereby reducing the energy loss caused by the generation of eddy currents, thereby effectively improving the heat dissipation effect.

[0047] It is understandable that the rear shell 100 can be the rear shell 100 of the entire display device. There is no limitation on the structural form of the air inlet 110 and the air outlet 120, which can be circular or square. The windshield 200 is arranged around the periphery of the air inlet 110 and the air outlet 120, and there is a certain gap between the windshield 200 and the back plate 500 for air to flow through. The windshield 200 can be set as a split structure with the rear shell 100, and fixedly connected to the rear shell 100 through a connecting structure, such as a snap connection or a bolt connection; of course, in other embodiments, the windshield 200 and the rear shell 100 can also be set as an integrally formed form.

[0048] like Figure 3 As shown, in one embodiment, the windshield 200 and the rear housing 100 are integrally formed. By arranging the windshield 200 and the rear housing 100 as an integrally formed manner, the phenomenon of eddy current generation can be reduced, and the integration performance of the rear housing 100 and the windshield 200 can be improved, the number of parts can be reduced, the production cost can be reduced, and the installation efficiency of the display device can be improved.

[0049] Specifically, the rear shell 100 and the windshield 200 can be made of plastic material and obtained by injection molding; of course, the rear shell 100 and the windshield 200 can also be made of aluminum alloy or stainless steel and obtained by stamping.

[0050] It should be understood that there is no limit to the number of fans provided at the air inlet 110 and the air outlet 120, and one fan may be provided at the air inlet 110 and one fan may be provided at the air outlet. In another embodiment, two fans may be provided at the air inlet 110 and two fans may be provided at the air outlet 120. The two air inlet fans 300 provided at the air inlet 110 are arranged in parallel, and the air outlet surfaces of the two air inlet fans 300 are both facing the back plate 500; the two air exhaust fans 400 provided at the air outlet 120 are also arranged in parallel, and the air outlet surfaces of the two air exhaust fans are both arranged away from the back plate 500.

[0051] It should be noted that, in the present embodiment, the directions of the air outlet surfaces of the fans arranged at the air inlet 110 and the air outlet 120 are set in different forms, so that the fan at the air inlet 110 can easily draw the air outside the rear shell 100 into the heat dissipation duct 600 to dissipate the internal structure of the display device; and the fan at the air outlet 120 can easily discharge the air in the heat dissipation duct 600 out of the heat dissipation duct, so that the airflow rate in the entire heat dissipation duct 600 is increased, thereby improving the heat dissipation effect of the entire display device.

[0052] Specifically, the blades of the fan are arranged at an angle so that the fan as a whole forms a form in which one side is concave and the other side is convex, the concave side is the air outlet side, and the convex side is the air inlet side. In this embodiment, at the air inlet 110, the convex side of the fan is arranged toward the side away from the back plate 500, and the concave side is arranged toward the side of the back plate 500; at the air outlet 120, the convex side of the fan is arranged toward the side of the back plate 500, and the concave side is arranged toward the side away from the back plate 500. Moreover, the directions of the air outlet surfaces of the fans arranged at the air inlet 110 are all the same; the air outlet surfaces of the fans arranged at the air outlet 120 are all the same, and are exactly opposite to the air outlet surfaces of the fans at the air inlet 110.

[0053] Further, the air inlet fan 300 is a blast fan. The air inlet fan 300 is set as a blast fan so that external ventilation is sucked into the heat dissipation channel through the fixed fan, thereby improving the heat dissipation effect. The blast fan is used to generate turbulence at the air inlet 110, thereby improving the heat dissipation effect.

[0054] Please refer to Figure 5 , Figure 6 and Figure 8It is understood that, specifically, the first heat dissipation duct 610 is formed between the air inlet fan 300, the channel between the air inlet 110 and the air outlet 120, and the exhaust fan 400. The air enters the channel formed between the rear housing 100 and the back plate 500 after being accelerated by the air inlet fan 300, and is accelerated out of the channel under the action of the exhaust fan 400. Compared with the prior art, in which the air outlet surfaces of the fans at the air inlet 110 and the air outlet 120 are arranged in the same direction, in the present application, the air enters from the air inlet 110 and flows out from the air outlet 120, so that air circulates in the channel between the air inlet 110 and the air outlet 120, thereby taking away the heat in the display device, thereby achieving the effect of heat dissipation.

[0055] like Figure 3 As shown, in one embodiment, the middle part of the side of the rear shell 100 facing the back plate is recessed in a direction away from the back plate to form a recessed cavity 130, and the periphery of the back plate is attached to and fixedly connected with the outer edge corresponding to the recessed cavity 130 on the rear shell 100, and a channel is defined between the back plate and the recessed cavity 130. By providing the recessed cavity 130 on the rear shell 100, it is convenient to install the air intake fan 300 and the exhaust fan 400. In addition, by providing the recessed cavity 130, a gap is provided between the rear shell 100 and the back plate, so that a channel for air circulation is formed between the rear shell 100 and the back plate, thereby achieving heat dissipation of the back plate and other components in the display device.

[0056] like Figure 3 As shown, specifically, a square groove is formed in the middle of the rear shell 100, and the square groove is the recessed cavity 130 as described above. The periphery of the back plate 500 fits with the outer periphery of the square groove in the rear shell 100. In this way, the gap between the back plate 500 and the bottom of the square groove is used for air circulation, that is, the above-mentioned channel. There is a gap between the end surface of the windshield 200 facing the back plate 500 and the back plate 500, so as to prevent the air at the fan from forming a vortex while allowing air to circulate between the air inlet 110 and the air outlet 120.

[0057] like Figure 3 and Figure 4 As shown, in one embodiment, a plurality of first ventilation holes 131 are arranged at intervals around the bottom wall of the recessed cavity 130. By arranging a plurality of first ventilation holes 131 around the bottom wall of the recessed cavity 130, the air circulation effect is enhanced, thereby improving the heat dissipation effect.

[0058] Specifically, two spaced-apart square areas are provided on the bottom wall of the square groove, and through holes distributed in an array are provided on the bottom wall corresponding to the two square areas. The through holes corresponding to one square area are air inlets; and the through holes corresponding to the other square area are air outlets. First ventilation holes 131 are provided on the periphery of the bottom wall of the square groove, and the first ventilation holes 131 are through holes. The first ventilation holes 131 near the air inlet 110 are used for air to flow out of the heat dissipation duct; and the first ventilation holes 131 near the air outlet 120 are used for air to enter the heat dissipation duct from the outside.

[0059] Please refer to Figure 5 , Figure 6 and Figure 8 It is understood that the second heat dissipation duct 620 is formed between the air inlet fan 300, the passage between the air inlet 110 and the first ventilation hole 131, and the first ventilation holes 131 arranged around the air inlet 110. The third heat dissipation duct 630 is formed between the first ventilation holes 131 arranged around the air outlet 120, the passage between the air outlet 120 and the first ventilation hole 131, and the exhaust fan 400. In this way, the heat dissipation structure of the entire display device has three types of heat dissipation ducts; one is a heat dissipation duct in which air enters from the air inlet 110, flows through the gap between the bottom wall of the square groove and the back plate, and flows out from the air outlet 120, which is the above-mentioned first heat dissipation duct 610; one is a heat dissipation duct in which air enters from the air inlet 110, flows through the gap between the bottom wall of the square groove and the back plate, and flows out through the first ventilation hole 131 near the air inlet 110, which is the second heat dissipation duct 620; the last one is a heat dissipation duct in which air enters from the first ventilation hole 131 near the air outlet 120, flows through the gap between the bottom wall of the square groove and the back plate, and flows out from the air outlet 120, which is the third heat dissipation duct 630. The first heat dissipation duct 610 dissipates heat between the air inlet 110 and the air outlet 120 , the second heat dissipation duct 620 dissipates heat to the area on the side of the air inlet 110 away from the air outlet 120 , and the third heat dissipation duct 630 dissipates heat to the area on the side of the air outlet 120 away from the air inlet 110 .

[0060] like Figure 3 and Figure 4 As shown, in one embodiment, the first ventilation holes 131 are arranged in an array in the circumferential direction of the cavity bottom wall. By arranging a plurality of first ventilation holes 131 in an array around the cavity bottom wall, the arrangement of the first ventilation holes 131 is more uniform, thereby making the heat dissipation more uniform. Specifically, five rows of first ventilation holes 131 spaced apart are arranged around the periphery of the bottom wall of the square groove.

[0061] like Figure 3As shown, in one embodiment, a plurality of second ventilation holes 132 arranged at intervals are provided on the edge where the strong side wall of the recessed cavity 130 and the side of the rear shell 100 facing the back plate 500 are connected. By providing the second ventilation holes 132 on the edge where the strong side wall of the recessed cavity 130 and the side of the rear shell 100 are connected, the air entering and exiting from the second ventilation holes 132 can directly dissipate heat to the back plate 500, thereby improving the heat dissipation effect of the back plate 500.

[0062] The side wall corresponding to the square groove faces the end surface of one end of the back plate 500, and is connected with the side surfaces of the rear shell 100 and the back plate 500 that are in contact with each other to form a right-angled edge. In this embodiment, a through cutout is provided on the right-angled edge, and the cutout is the second ventilation hole 132. In this way, the air entering and exiting the second ventilation hole 132 can directly take away the heat generated on the back plate 500.

[0063] like Figure 2 and Figure 3 As shown, in one embodiment, the back plate 500 is fixedly connected to the rear shell 100 by means of mounting studs. The back plate 500 is fixedly connected to the rear shell 100 by means of mounting studs, which has a simple structure, is easy to install, has a reliable connection, and has a compact structure. Specifically, on the rear shell 100, a plurality of spaced mounting protrusions 133 are provided on the bottom wall of the square groove, and an internal thread is provided on the mounting protrusion 133. When the back plate 500 and the rear shell 100 are fitted together, the mounting studs are threadedly matched with the internal threads on the mounting protrusions 133 to achieve a fixed connection between the back plate 500 and the rear shell 100.

[0064] Reference Figure 7 and Figure 8 It is understood that the heat dissipation structure of the display device provided by the embodiment of the utility model has the following effects compared with the heat dissipation duct in the prior art:

[0065] In the prior art, such as Figure 8 As shown, the air outlet faces of the fans arranged at the air inlet 110 and the air outlet 120 are in the same direction, which makes it impossible for the air to flow in a certain direction, thereby causing a heat dissipation dead angle inside the display device. Figure 6 In the embodiment, air can only circulate around the air inlet 110 and the air outlet 120, forming a heat dissipation dead angle between the air inlet 110 and the air outlet 120, thereby resulting in low heat dissipation efficiency.

[0066] In this application, if Figure 7As shown, the heat dissipation structure of the entire display device has three types of heat dissipation ducts; one is a heat dissipation duct in which air enters from the air inlet 110, flows through the gap between the bottom wall of the square groove and the back plate, and flows out from the air outlet 120, which is the above-mentioned first heat dissipation duct 610; one is a heat dissipation duct in which air enters from the air inlet 110, flows through the gap between the bottom wall of the square groove and the back plate, and flows out through the first ventilation hole 131 near the air inlet 110, which is the second heat dissipation duct 620; the last one is a heat dissipation duct in which air enters from the first ventilation hole 131 near the air outlet 120, flows through the gap between the bottom wall of the square groove and the back plate, and flows out from the air outlet 120, which is the third heat dissipation duct 630. The first heat dissipation duct 610 is used to dissipate heat between the air inlet 110 and the air outlet 120, the second heat dissipation duct 620 is used to dissipate heat from the area on the side of the air inlet 110 away from the air outlet 120, and the third heat dissipation duct 630 is used to dissipate heat from the area on the side of the air outlet 120 away from the air inlet 110. There is no dead angle for heat dissipation in the heat dissipation structure of the entire display device, so that it has a stronger heat dissipation performance.

[0067] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A heat dissipation structure of a display device, characterized in that: The heat dissipation structure of the display device comprises: The rear shell is provided with an air inlet and an air outlet spaced apart from each other; A back plate connected to the rear shell, wherein a gap is provided between the back plate and the rear shell to define a channel for air circulation, and the air inlet, the channel and the air outlet are connected to form a heat dissipation duct; A windshield, the periphery of the air inlet and the air outlet are surrounded by the windshield, and the windshield is arranged on a side of the rear shell facing the back plate; An air inlet fan, at least one of which is disposed in a cavity defined by the air inlet and the wind shield, and an air outlet surface of the air inlet fan faces the back plate; An exhaust fan, at least one of the exhaust fans is arranged in a cavity defined by the air outlet and the wind shield, and the air inlet surface of the exhaust fan faces the back plate.

2. The heat dissipation structure of the display device according to claim 1, characterized in that: The wind shield and the rear shell are integrally formed.

3. The heat dissipation structure of the display device according to claim 1, characterized in that: The air inlet fan, the passage between the air inlet and the air outlet, and the air exhaust fan form a first heat dissipation duct.

4. The heat dissipation structure of the display device according to claim 1, characterized in that: The middle part of the rear shell on one side facing the back plate is recessed in a direction away from the back plate to form a recessed cavity, the periphery of the back plate is affixed to and fixedly connected with the outer edge corresponding to the recessed cavity on the rear shell, and the channel is defined between the back plate and the recessed cavity.

5. The heat dissipation structure of the display device according to claim 4, characterized in that: A plurality of first ventilation holes arranged at intervals are arranged around the bottom wall of the recessed cavity.

6. The heat dissipation structure of the display device according to claim 5, characterized in that: The first ventilation holes are arranged in an array in the circumferential direction of the cavity bottom wall.

7. The heat dissipation structure of the display device according to claim 5, characterized in that: The air inlet fan, the passage between the air inlet and the first ventilation hole, and the first ventilation holes surrounding the air inlet form a second heat dissipation air duct; And / or, a third heat dissipation duct is formed between the first ventilation holes arranged around the air outlet, the passage between the air outlet and the first ventilation holes, and the exhaust fan.

8. The heat dissipation structure of the display device according to claim 4, characterized in that: A plurality of second ventilation holes arranged at intervals are arranged on the edges where the cavity side wall of the recessed cavity and the side surface of the rear shell facing the back plate are connected.

9. The heat dissipation structure of the display device according to claim 1, characterized in that: The air inlet is a blast fan.

10. A display device, characterized in that: The display device comprises the heat dissipation structure of the display device according to any one of claims 1 to 9.

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